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freebsd-nq/sys/dev/ti/if_ti.c

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/* -> /*- for license, minor formatting changes
2005-01-07 02:29:27 +00:00
/*-
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
* Copyright (c) 1997, 1998, 1999
* Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Alteon Networks Tigon PCI gigabit ethernet driver for FreeBSD.
* Manuals, sample driver and firmware source kits are available
* from http://www.alteon.com/support/openkits.
Whitespace nits
2004-07-05 22:35:18 +00:00
*
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
* Written by Bill Paul <wpaul@ctr.columbia.edu>
* Electrical Engineering Department
* Columbia University, New York City
*/
/*
* The Alteon Networks Tigon chip contains an embedded R4000 CPU,
* gigabit MAC, dual DMA channels and a PCI interface unit. NICs
* using the Tigon may have anywhere from 512K to 2MB of SRAM. The
* Tigon supports hardware IP, TCP and UCP checksumming, multicast
* filtering and jumbo (9014 byte) frames. The hardware is largely
* controlled by firmware, which must be loaded into the NIC during
* initialization.
*
* The Tigon 2 contains 2 R4000 CPUs and requires a newer firmware
* revision, which supports new features such as extended commands,
* extended jumbo receive ring desciptors and a mini receive ring.
*
* Alteon Networks is to be commended for releasing such a vast amount
* of development material for the Tigon NIC without requiring an NDA
* (although they really should have done it a long time ago). With
* any luck, the other vendors will finally wise up and follow Alteon's
* stellar example.
*
* The firmware for the Tigon 1 and 2 NICs is compiled directly into
* this driver by #including it as a C header file. This bloats the
* driver somewhat, but it's the easiest method considering that the
* driver code and firmware code need to be kept in sync. The source
* for the firmware is not provided with the FreeBSD distribution since
* compiling it requires a GNU toolchain targeted for mips-sgi-irix5.3.
*
* The following people deserve special thanks:
* - Terry Murphy of 3Com, for providing a 3c985 Tigon 1 board
* for testing
* - Raymond Lee of Netgear, for providing a pair of Netgear
* GA620 Tigon 2 boards for testing
* - Ulf Zimmermann, for bringing the GA260 to my attention and
* convincing me to write this driver.
* - Andrew Gallatin for providing FreeBSD/Alpha support.
*/
Use __FBSDID rather than rcsid[].
2003-04-03 21:36:33 +00:00
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#include "opt_ti.h"
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/sockio.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
Add missing <sys/module.h> includes
2004-05-30 20:00:41 +00:00
#include <sys/module.h>
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
#include <sys/socket.h>
#include <sys/queue.h>
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#include <sys/conf.h>
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
#include <sys/sf_buf.h>
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
#include <net/if.h>
#include <net/if_arp.h>
#include <net/ethernet.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_types.h>
#include <net/if_vlan_var.h>
Make vlan(4) loadable, unloadable, and clonable. As a side effect, interfaces must now always enable VLAN support. Reviewed by: jlemon MFC after: 3 weeks
2001-09-05 21:10:28 +00:00
#include <net/bpf.h>
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
#include <netinet/in_systm.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <machine/bus.h>
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
#include <machine/resource.h>
#include <sys/bus.h>
#include <sys/rman.h>
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
/* #define TI_PRIVATE_JUMBOS */
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
#ifndef TI_PRIVATE_JUMBOS
#include <vm/vm.h>
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#include <vm/vm_page.h>
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
#endif
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
Prefer new location of pci include files (which have only been in the tree for two or more years now), except in a few places where there's code to be compatible with older versions of FreeBSD.
2003-08-22 07:20:27 +00:00
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#include <sys/tiio.h>
The if_ti Tigon I/II driver has moved to /sys/dev/ti
2005-12-10 00:38:33 +00:00
#include <dev/ti/if_tireg.h>
#include <dev/ti/ti_fw.h>
#include <dev/ti/ti_fw2.h>
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
Add support for offloading IP/TCP/UDP checksums to NIC hardware which supports them.
2000-03-27 19:14:27 +00:00
#define TI_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP | CSUM_IP_FRAGS)
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
/*
* We can only turn on header splitting if we're using extended receive
* BDs.
*/
#if defined(TI_JUMBO_HDRSPLIT) && defined(TI_PRIVATE_JUMBOS)
#error "options TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS are mutually exclusive"
#endif /* TI_JUMBO_HDRSPLIT && TI_JUMBO_HDRSPLIT */
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
typedef enum {
TI_SWAP_HTON,
TI_SWAP_NTOH
} ti_swap_type;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* Various supported device vendors/types and their names.
*/
static struct ti_type ti_devs[] = {
{ ALT_VENDORID, ALT_DEVICEID_ACENIC,
Tweak probe message so that 1000baseSX and 1000baseT cards are explicitly identified.
2000-07-20 23:43:45 +00:00
"Alteon AceNIC 1000baseSX Gigabit Ethernet" },
Update the Tigon driver to support 1000baseTX gigE over copper AceNIC cards. This basically involves switching to the 12.4.13 firmware, plus a couple of minor tweaks to the driver. Also changed the jumbo buffer allocation scheme just a little to avoid 'failed to allocate jumbo buffer' conditions in certain cases.
2000-07-20 22:24:43 +00:00
{ ALT_VENDORID, ALT_DEVICEID_ACENIC_COPPER,
Tweak probe message so that 1000baseSX and 1000baseT cards are explicitly identified.
2000-07-20 23:43:45 +00:00
"Alteon AceNIC 1000baseT Gigabit Ethernet" },
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
{ TC_VENDORID, TC_DEVICEID_3C985,
"3Com 3c985-SX Gigabit Ethernet" },
{ NG_VENDORID, NG_DEVICEID_GA620,
Add support for the Netgear GA620T copper gigabit card.
2000-08-02 18:49:17 +00:00
"Netgear GA620 1000baseSX Gigabit Ethernet" },
{ NG_VENDORID, NG_DEVICEID_GA620T,
"Netgear GA620 1000baseT Gigabit Ethernet" },
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
{ SGI_VENDORID, SGI_DEVICEID_TIGON,
"Silicon Graphics Gigabit Ethernet" },
Add the vendor/device ID for the Farallon PN9000SX gigabit ethernet card, which is apparently also a Tigon 2 device.
2000-01-18 00:26:29 +00:00
{ DEC_VENDORID, DEC_DEVICEID_FARALLON_PN9000SX,
"Farallon PN9000SX Gigabit Ethernet" },
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
{ 0, 0, NULL }
};
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
static d_open_t ti_open;
static d_close_t ti_close;
static d_ioctl_t ti_ioctl2;
static struct cdevsw ti_cdevsw = {
Device megapatch 4/6: Introduce d_version field in struct cdevsw, this must always be initialized to D_VERSION. Flip sense of D_NOGIANT flag to D_NEEDGIANT, this involves removing four D_NOGIANT flags and adding 145 D_NEEDGIANT flags.
2004-02-21 21:10:55 +00:00
.d_version = D_VERSION,
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
.d_flags = 0,
Gigacommit to improve device-driver source compatibility between branches: Initialize struct cdevsw using C99 sparse initializtion and remove all initializations to default values. This patch is automatically generated and has been tested by compiling LINT with all the fields in struct cdevsw in reverse order on alpha, sparc64 and i386. Approved by: re(scottl)
2003-03-03 12:15:54 +00:00
.d_open = ti_open,
.d_close = ti_close,
.d_ioctl = ti_ioctl2,
.d_name = "ti",
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
};
Fix style(9) issues with __P removal. Noticed by: bde
2005-02-24 22:33:05 +00:00
static int ti_probe(device_t);
static int ti_attach(device_t);
static int ti_detach(device_t);
static void ti_txeof(struct ti_softc *);
static void ti_rxeof(struct ti_softc *);
static void ti_stats_update(struct ti_softc *);
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
static int ti_encap(struct ti_softc *, struct mbuf **);
Fix style(9) issues with __P removal. Noticed by: bde
2005-02-24 22:33:05 +00:00
static void ti_intr(void *);
static void ti_start(struct ifnet *);
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
static void ti_start_locked(struct ifnet *);
Fix style(9) issues with __P removal. Noticed by: bde
2005-02-24 22:33:05 +00:00
static int ti_ioctl(struct ifnet *, u_long, caddr_t);
static void ti_init(void *);
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
static void ti_init_locked(void *);
Fix style(9) issues with __P removal. Noticed by: bde
2005-02-24 22:33:05 +00:00
static void ti_init2(struct ti_softc *);
static void ti_stop(struct ti_softc *);
static void ti_watchdog(struct ifnet *);
static void ti_shutdown(device_t);
static int ti_ifmedia_upd(struct ifnet *);
static void ti_ifmedia_sts(struct ifnet *, struct ifmediareq *);
static u_int32_t ti_eeprom_putbyte(struct ti_softc *, int);
static u_int8_t ti_eeprom_getbyte(struct ti_softc *, int, u_int8_t *);
static int ti_read_eeprom(struct ti_softc *, caddr_t, int, int);
static void ti_add_mcast(struct ti_softc *, struct ether_addr *);
static void ti_del_mcast(struct ti_softc *, struct ether_addr *);
static void ti_setmulti(struct ti_softc *);
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
static void ti_mem_read(struct ti_softc *, u_int32_t, u_int32_t, void *);
static void ti_mem_write(struct ti_softc *, u_int32_t, u_int32_t, void *);
static void ti_mem_zero(struct ti_softc *, u_int32_t, u_int32_t);
Fix style(9) issues with __P removal. Noticed by: bde
2005-02-24 22:33:05 +00:00
static int ti_copy_mem(struct ti_softc *, u_int32_t, u_int32_t, caddr_t, int, int);
static int ti_copy_scratch(struct ti_softc *, u_int32_t, u_int32_t, caddr_t,
int, int, int);
static int ti_bcopy_swap(const void *, void *, size_t, ti_swap_type);
static void ti_loadfw(struct ti_softc *);
static void ti_cmd(struct ti_softc *, struct ti_cmd_desc *);
static void ti_cmd_ext(struct ti_softc *, struct ti_cmd_desc *, caddr_t, int);
static void ti_handle_events(struct ti_softc *);
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
static int ti_alloc_dmamaps(struct ti_softc *);
static void ti_free_dmamaps(struct ti_softc *);
Fix style(9) issues with __P removal. Noticed by: bde
2005-02-24 22:33:05 +00:00
static int ti_alloc_jumbo_mem(struct ti_softc *);
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
#ifdef TI_PRIVATE_JUMBOS
Fix style(9) issues with __P removal. Noticed by: bde
2005-02-24 22:33:05 +00:00
static void *ti_jalloc(struct ti_softc *);
static void ti_jfree(void *, void *);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#endif /* TI_PRIVATE_JUMBOS */
Fix style(9) issues with __P removal. Noticed by: bde
2005-02-24 22:33:05 +00:00
static int ti_newbuf_std(struct ti_softc *, int, struct mbuf *);
static int ti_newbuf_mini(struct ti_softc *, int, struct mbuf *);
static int ti_newbuf_jumbo(struct ti_softc *, int, struct mbuf *);
static int ti_init_rx_ring_std(struct ti_softc *);
static void ti_free_rx_ring_std(struct ti_softc *);
static int ti_init_rx_ring_jumbo(struct ti_softc *);
static void ti_free_rx_ring_jumbo(struct ti_softc *);
static int ti_init_rx_ring_mini(struct ti_softc *);
static void ti_free_rx_ring_mini(struct ti_softc *);
static void ti_free_tx_ring(struct ti_softc *);
static int ti_init_tx_ring(struct ti_softc *);
static int ti_64bitslot_war(struct ti_softc *);
static int ti_chipinit(struct ti_softc *);
static int ti_gibinit(struct ti_softc *);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#ifdef TI_JUMBO_HDRSPLIT
Remove a couple of __P() stragglers.
2002-06-29 02:32:34 +00:00
static __inline void ti_hdr_split (struct mbuf *top, int hdr_len,
int pkt_len, int idx);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#endif /* TI_JUMBO_HDRSPLIT */
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
static device_method_t ti_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ti_probe),
DEVMETHOD(device_attach, ti_attach),
DEVMETHOD(device_detach, ti_detach),
DEVMETHOD(device_shutdown, ti_shutdown),
{ 0, 0 }
};
static driver_t ti_driver = {
Grrr. Okay, changing the devnames was a bad idea. Put them back the way they were.
1999-09-20 08:47:11 +00:00
"ti",
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
ti_methods,
sizeof(struct ti_softc)
};
static devclass_t ti_devclass;
- Express hard dependencies on bus (pci, isa, pccard) and network layer (ether). - Don't abuse module names to facilitate ifconfig module loading; such abuse isn't really needed. (And if we do need type information associated with a module then we should make it explicit and not use hacks.)
2003-04-15 06:37:30 +00:00
DRIVER_MODULE(ti, pci, ti_driver, ti_devclass, 0, 0);
MODULE_DEPEND(ti, pci, 1, 1, 1);
MODULE_DEPEND(ti, ether, 1, 1, 1);
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* Send an instruction or address to the EEPROM, check for ACK.
*/
static u_int32_t ti_eeprom_putbyte(sc, byte)
struct ti_softc *sc;
int byte;
{
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
int i, ack = 0;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* Make sure we're in TX mode.
*/
TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN);
/*
* Feed in each bit and stobe the clock.
*/
for (i = 0x80; i; i >>= 1) {
if (byte & i) {
TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT);
} else {
TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT);
}
DELAY(1);
TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
DELAY(1);
TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
}
/*
* Turn off TX mode.
*/
TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN);
/*
* Check for ack.
*/
TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
ack = CSR_READ_4(sc, TI_MISC_LOCAL_CTL) & TI_MLC_EE_DIN;
TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (ack);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/*
* Read a byte of data stored in the EEPROM at address 'addr.'
* We have to send two address bytes since the EEPROM can hold
* more than 256 bytes of data.
*/
static u_int8_t ti_eeprom_getbyte(sc, addr, dest)
struct ti_softc *sc;
int addr;
u_int8_t *dest;
{
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
int i;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
u_int8_t byte = 0;
EEPROM_START;
/*
* Send write control code to EEPROM.
*/
if (ti_eeprom_putbyte(sc, EEPROM_CTL_WRITE)) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp,
"failed to send write command, status: %x\n",
CSR_READ_4(sc, TI_MISC_LOCAL_CTL));
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (1);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/*
* Send first byte of address of byte we want to read.
*/
if (ti_eeprom_putbyte(sc, (addr >> 8) & 0xFF)) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "failed to send address, status: %x\n",
CSR_READ_4(sc, TI_MISC_LOCAL_CTL));
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (1);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/*
* Send second byte address of byte we want to read.
*/
if (ti_eeprom_putbyte(sc, addr & 0xFF)) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "failed to send address, status: %x\n",
CSR_READ_4(sc, TI_MISC_LOCAL_CTL));
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (1);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
EEPROM_STOP;
EEPROM_START;
/*
* Send read control code to EEPROM.
*/
if (ti_eeprom_putbyte(sc, EEPROM_CTL_READ)) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp,
"failed to send read command, status: %x\n",
CSR_READ_4(sc, TI_MISC_LOCAL_CTL));
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (1);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/*
* Start reading bits from EEPROM.
*/
TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN);
for (i = 0x80; i; i >>= 1) {
TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
DELAY(1);
if (CSR_READ_4(sc, TI_MISC_LOCAL_CTL) & TI_MLC_EE_DIN)
byte |= i;
TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK);
DELAY(1);
}
EEPROM_STOP;
/*
* No ACK generated for read, so just return byte.
*/
*dest = byte;
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/*
* Read a sequence of bytes from the EEPROM.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static int
ti_read_eeprom(sc, dest, off, cnt)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
caddr_t dest;
int off;
int cnt;
{
int err = 0, i;
u_int8_t byte = 0;
for (i = 0; i < cnt; i++) {
err = ti_eeprom_getbyte(sc, off + i, &byte);
if (err)
break;
*(dest + i) = byte;
}
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (err ? 1 : 0);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/*
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
* NIC memory read function.
* Can be used to copy data from NIC local memory.
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
ti_mem_read(sc, addr, len, buf)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
u_int32_t addr, len;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
void *buf;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
{
int segptr, segsize, cnt;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
char *ptr;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
segptr = addr;
cnt = len;
ptr = buf;
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
while (cnt) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (cnt < TI_WINLEN)
segsize = cnt;
else
segsize = TI_WINLEN - (segptr % TI_WINLEN);
CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1)));
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle,
TI_WINDOW + (segptr & (TI_WINLEN - 1)), (u_int32_t *)ptr,
segsize / 4);
ptr += segsize;
segptr += segsize;
cnt -= segsize;
}
}
/*
* NIC memory write function.
* Can be used to copy data into NIC local memory.
*/
static void
ti_mem_write(sc, addr, len, buf)
struct ti_softc *sc;
u_int32_t addr, len;
void *buf;
{
int segptr, segsize, cnt;
char *ptr;
segptr = addr;
cnt = len;
ptr = buf;
while (cnt) {
if (cnt < TI_WINLEN)
segsize = cnt;
else
segsize = TI_WINLEN - (segptr % TI_WINLEN);
CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1)));
bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle,
TI_WINDOW + (segptr & (TI_WINLEN - 1)), (u_int32_t *)ptr,
segsize / 4);
ptr += segsize;
segptr += segsize;
cnt -= segsize;
}
}
/*
* NIC memory read function.
* Can be used to clear a section of NIC local memory.
*/
static void
ti_mem_zero(sc, addr, len)
struct ti_softc *sc;
u_int32_t addr, len;
{
int segptr, segsize, cnt;
segptr = addr;
cnt = len;
while (cnt) {
if (cnt < TI_WINLEN)
segsize = cnt;
else
segsize = TI_WINLEN - (segptr % TI_WINLEN);
CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1)));
bus_space_set_region_4(sc->ti_btag, sc->ti_bhandle,
TI_WINDOW + (segptr & (TI_WINLEN - 1)), 0, segsize / 4);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
segptr += segsize;
cnt -= segsize;
}
}
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
static int
ti_copy_mem(sc, tigon_addr, len, buf, useraddr, readdata)
struct ti_softc *sc;
u_int32_t tigon_addr, len;
caddr_t buf;
int useraddr, readdata;
{
int segptr, segsize, cnt;
caddr_t ptr;
u_int32_t origwin;
u_int8_t tmparray[TI_WINLEN], tmparray2[TI_WINLEN];
int resid, segresid;
int first_pass;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
TI_LOCK_ASSERT(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
/*
* At the moment, we don't handle non-aligned cases, we just bail.
* If this proves to be a problem, it will be fixed.
*/
if ((readdata == 0)
&& (tigon_addr & 0x3)) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "ti_copy_mem: tigon address %#x isn't "
"word-aligned\n", tigon_addr);
if_printf(sc->ti_ifp, "ti_copy_mem: unaligned writes aren't "
"yet supported\n");
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (EINVAL);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
}
segptr = tigon_addr & ~0x3;
segresid = tigon_addr - segptr;
/*
* This is the non-aligned amount left over that we'll need to
* copy.
*/
resid = len & 0x3;
/* Add in the left over amount at the front of the buffer */
resid += segresid;
cnt = len & ~0x3;
/*
* If resid + segresid is >= 4, add multiples of 4 to the count and
* decrease the residual by that much.
*/
cnt += resid & ~0x3;
resid -= resid & ~0x3;
ptr = buf;
first_pass = 1;
/*
* Save the old window base value.
*/
origwin = CSR_READ_4(sc, TI_WINBASE);
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
while (cnt) {
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
bus_size_t ti_offset;
if (cnt < TI_WINLEN)
segsize = cnt;
else
segsize = TI_WINLEN - (segptr % TI_WINLEN);
CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1)));
ti_offset = TI_WINDOW + (segptr & (TI_WINLEN -1));
if (readdata) {
bus_space_read_region_4(sc->ti_btag,
sc->ti_bhandle, ti_offset,
(u_int32_t *)tmparray,
segsize >> 2);
if (useraddr) {
/*
* Yeah, this is a little on the kludgy
* side, but at least this code is only
* used for debugging.
*/
ti_bcopy_swap(tmparray, tmparray2, segsize,
TI_SWAP_NTOH);
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_UNLOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
if (first_pass) {
copyout(&tmparray2[segresid], ptr,
segsize - segresid);
first_pass = 0;
} else
copyout(tmparray2, ptr, segsize);
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_LOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
} else {
if (first_pass) {
ti_bcopy_swap(tmparray, tmparray2,
segsize, TI_SWAP_NTOH);
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_UNLOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
bcopy(&tmparray2[segresid], ptr,
segsize - segresid);
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_LOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
first_pass = 0;
} else
ti_bcopy_swap(tmparray, ptr, segsize,
TI_SWAP_NTOH);
}
} else {
if (useraddr) {
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_UNLOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
copyin(ptr, tmparray2, segsize);
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_LOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
ti_bcopy_swap(tmparray2, tmparray, segsize,
TI_SWAP_HTON);
} else
ti_bcopy_swap(ptr, tmparray, segsize,
TI_SWAP_HTON);
bus_space_write_region_4(sc->ti_btag,
sc->ti_bhandle, ti_offset,
(u_int32_t *)tmparray,
segsize >> 2);
}
segptr += segsize;
ptr += segsize;
cnt -= segsize;
}
/*
* Handle leftover, non-word-aligned bytes.
*/
if (resid != 0) {
u_int32_t tmpval, tmpval2;
bus_size_t ti_offset;
/*
* Set the segment pointer.
*/
CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1)));
ti_offset = TI_WINDOW + (segptr & (TI_WINLEN - 1));
/*
* First, grab whatever is in our source/destination.
* We'll obviously need this for reads, but also for
* writes, since we'll be doing read/modify/write.
*/
bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle,
ti_offset, &tmpval, 1);
/*
* Next, translate this from little-endian to big-endian
* (at least on i386 boxes).
*/
tmpval2 = ntohl(tmpval);
if (readdata) {
/*
* If we're reading, just copy the leftover number
* of bytes from the host byte order buffer to
* the user's buffer.
*/
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
if (useraddr) {
TI_UNLOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
copyout(&tmpval2, ptr, resid);
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_LOCK(sc);
} else
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
bcopy(&tmpval2, ptr, resid);
} else {
/*
* If we're writing, first copy the bytes to be
* written into the network byte order buffer,
* leaving the rest of the buffer with whatever was
* originally in there. Then, swap the bytes
* around into host order and write them out.
*
* XXX KDM the read side of this has been verified
* to work, but the write side of it has not been
* verified. So user beware.
*/
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
if (useraddr) {
TI_UNLOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
copyin(ptr, &tmpval2, resid);
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_LOCK(sc);
} else
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
bcopy(ptr, &tmpval2, resid);
tmpval = htonl(tmpval2);
bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle,
ti_offset, &tmpval, 1);
}
}
CSR_WRITE_4(sc, TI_WINBASE, origwin);
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
}
static int
ti_copy_scratch(sc, tigon_addr, len, buf, useraddr, readdata, cpu)
struct ti_softc *sc;
u_int32_t tigon_addr, len;
caddr_t buf;
int useraddr, readdata;
int cpu;
{
u_int32_t segptr;
int cnt;
u_int32_t tmpval, tmpval2;
caddr_t ptr;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
TI_LOCK_ASSERT(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
/*
* At the moment, we don't handle non-aligned cases, we just bail.
* If this proves to be a problem, it will be fixed.
*/
if (tigon_addr & 0x3) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "ti_copy_scratch: tigon address %#x "
"isn't word-aligned\n", tigon_addr);
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (EINVAL);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
}
if (len & 0x3) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "ti_copy_scratch: transfer length %d "
"isn't word-aligned\n", len);
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (EINVAL);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
}
segptr = tigon_addr;
cnt = len;
ptr = buf;
while (cnt) {
CSR_WRITE_4(sc, CPU_REG(TI_SRAM_ADDR, cpu), segptr);
if (readdata) {
tmpval2 = CSR_READ_4(sc, CPU_REG(TI_SRAM_DATA, cpu));
tmpval = ntohl(tmpval2);
/*
* Note: I've used this debugging interface
* extensively with Alteon's 12.3.15 firmware,
* compiled with GCC 2.7.2.1 and binutils 2.9.1.
*
* When you compile the firmware without
* optimization, which is necessary sometimes in
* order to properly step through it, you sometimes
Whitespace nits
2004-07-05 22:35:18 +00:00
* read out a bogus value of 0xc0017c instead of
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
* whatever was supposed to be in that scratchpad
* location. That value is on the stack somewhere,
* but I've never been able to figure out what was
* causing the problem.
*
* The address seems to pop up in random places,
* often not in the same place on two subsequent
* reads.
*
* In any case, the underlying data doesn't seem
* to be affected, just the value read out.
*
* KDM, 3/7/2000
*/
if (tmpval2 == 0xc0017c)
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "found 0xc0017c at %#x "
"(tmpval2)\n", segptr);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
if (tmpval == 0xc0017c)
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "found 0xc0017c at %#x "
"(tmpval)\n", segptr);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
if (useraddr)
copyout(&tmpval, ptr, 4);
else
bcopy(&tmpval, ptr, 4);
} else {
if (useraddr)
copyin(ptr, &tmpval2, 4);
else
bcopy(ptr, &tmpval2, 4);
tmpval = htonl(tmpval2);
CSR_WRITE_4(sc, CPU_REG(TI_SRAM_DATA, cpu), tmpval);
}
cnt -= 4;
segptr += 4;
ptr += 4;
}
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
}
static int
ti_bcopy_swap(src, dst, len, swap_type)
const void *src;
void *dst;
size_t len;
ti_swap_type swap_type;
{
const u_int8_t *tmpsrc;
u_int8_t *tmpdst;
size_t tmplen;
if (len & 0x3) {
Use %z to print a size_t value.
2002-11-08 14:58:35 +00:00
printf("ti_bcopy_swap: length %zd isn't 32-bit aligned\n",
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
len);
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (-1);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
}
tmpsrc = src;
tmpdst = dst;
tmplen = len;
while (tmplen) {
if (swap_type == TI_SWAP_NTOH)
*(u_int32_t *)tmpdst =
ntohl(*(const u_int32_t *)tmpsrc);
else
*(u_int32_t *)tmpdst =
htonl(*(const u_int32_t *)tmpsrc);
tmpsrc += 4;
tmpdst += 4;
tmplen -= 4;
}
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
}
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* Load firmware image into the NIC. Check that the firmware revision
* is acceptable and see if we want the firmware for the Tigon 1 or
* Tigon 2.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_loadfw(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
TI_LOCK_ASSERT(sc);
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
switch (sc->ti_hwrev) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
case TI_HWREV_TIGON:
if (tigonFwReleaseMajor != TI_FIRMWARE_MAJOR ||
tigonFwReleaseMinor != TI_FIRMWARE_MINOR ||
tigonFwReleaseFix != TI_FIRMWARE_FIX) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "firmware revision mismatch; "
"want %d.%d.%d, got %d.%d.%d\n",
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
TI_FIRMWARE_MAJOR, TI_FIRMWARE_MINOR,
TI_FIRMWARE_FIX, tigonFwReleaseMajor,
tigonFwReleaseMinor, tigonFwReleaseFix);
return;
}
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
ti_mem_write(sc, tigonFwTextAddr, tigonFwTextLen, tigonFwText);
ti_mem_write(sc, tigonFwDataAddr, tigonFwDataLen, tigonFwData);
ti_mem_write(sc, tigonFwRodataAddr, tigonFwRodataLen,
tigonFwRodata);
ti_mem_zero(sc, tigonFwBssAddr, tigonFwBssLen);
ti_mem_zero(sc, tigonFwSbssAddr, tigonFwSbssLen);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
CSR_WRITE_4(sc, TI_CPU_PROGRAM_COUNTER, tigonFwStartAddr);
break;
case TI_HWREV_TIGON_II:
if (tigon2FwReleaseMajor != TI_FIRMWARE_MAJOR ||
tigon2FwReleaseMinor != TI_FIRMWARE_MINOR ||
tigon2FwReleaseFix != TI_FIRMWARE_FIX) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "firmware revision mismatch; "
"want %d.%d.%d, got %d.%d.%d\n",
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
TI_FIRMWARE_MAJOR, TI_FIRMWARE_MINOR,
TI_FIRMWARE_FIX, tigon2FwReleaseMajor,
tigon2FwReleaseMinor, tigon2FwReleaseFix);
return;
}
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
ti_mem_write(sc, tigon2FwTextAddr, tigon2FwTextLen,
tigon2FwText);
ti_mem_write(sc, tigon2FwDataAddr, tigon2FwDataLen,
tigon2FwData);
ti_mem_write(sc, tigon2FwRodataAddr, tigon2FwRodataLen,
tigon2FwRodata);
ti_mem_zero(sc, tigon2FwBssAddr, tigon2FwBssLen);
ti_mem_zero(sc, tigon2FwSbssAddr, tigon2FwSbssLen);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
CSR_WRITE_4(sc, TI_CPU_PROGRAM_COUNTER, tigon2FwStartAddr);
break;
default:
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp,
"can't load firmware: unknown hardware rev\n");
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
break;
}
}
/*
* Send the NIC a command via the command ring.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_cmd(sc, cmd)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
struct ti_cmd_desc *cmd;
{
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
int index;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
index = sc->ti_cmd_saved_prodidx;
CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4), *(u_int32_t *)(cmd));
TI_INC(index, TI_CMD_RING_CNT);
CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, index);
sc->ti_cmd_saved_prodidx = index;
}
/*
* Send the NIC an extended command. The 'len' parameter specifies the
* number of command slots to include after the initial command.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_cmd_ext(sc, cmd, arg, len)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
struct ti_cmd_desc *cmd;
caddr_t arg;
int len;
{
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
int index;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
int i;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
index = sc->ti_cmd_saved_prodidx;
CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4), *(u_int32_t *)(cmd));
TI_INC(index, TI_CMD_RING_CNT);
for (i = 0; i < len; i++) {
CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4),
*(u_int32_t *)(&arg[i * 4]));
TI_INC(index, TI_CMD_RING_CNT);
}
CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, index);
sc->ti_cmd_saved_prodidx = index;
}
/*
* Handle events that have triggered interrupts.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_handle_events(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
struct ti_event_desc *e;
if (sc->ti_rdata->ti_event_ring == NULL)
return;
while (sc->ti_ev_saved_considx != sc->ti_ev_prodidx.ti_idx) {
e = &sc->ti_rdata->ti_event_ring[sc->ti_ev_saved_considx];
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
switch (TI_EVENT_EVENT(e)) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
case TI_EV_LINKSTAT_CHANGED:
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
sc->ti_linkstat = TI_EVENT_CODE(e);
if (sc->ti_linkstat == TI_EV_CODE_LINK_UP)
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "10/100 link up\n");
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
else if (sc->ti_linkstat == TI_EV_CODE_GIG_LINK_UP)
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "gigabit link up\n");
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
else if (sc->ti_linkstat == TI_EV_CODE_LINK_DOWN)
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "link down\n");
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
break;
case TI_EV_ERROR:
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
if (TI_EVENT_CODE(e) == TI_EV_CODE_ERR_INVAL_CMD)
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "invalid command\n");
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
else if (TI_EVENT_CODE(e) == TI_EV_CODE_ERR_UNIMP_CMD)
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "unknown command\n");
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
else if (TI_EVENT_CODE(e) == TI_EV_CODE_ERR_BADCFG)
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "bad config data\n");
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
break;
case TI_EV_FIRMWARE_UP:
ti_init2(sc);
break;
case TI_EV_STATS_UPDATED:
ti_stats_update(sc);
break;
case TI_EV_RESET_JUMBO_RING:
case TI_EV_MCAST_UPDATED:
/* Who cares. */
break;
default:
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "unknown event: %d\n",
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
TI_EVENT_EVENT(e));
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
break;
}
/* Advance the consumer index. */
TI_INC(sc->ti_ev_saved_considx, TI_EVENT_RING_CNT);
CSR_WRITE_4(sc, TI_GCR_EVENTCONS_IDX, sc->ti_ev_saved_considx);
}
}
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
static int
ti_alloc_dmamaps(struct ti_softc *sc)
{
int i;
for (i = 0; i < TI_TX_RING_CNT; i++) {
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
sc->ti_cdata.ti_txdesc[i].tx_m = NULL;
sc->ti_cdata.ti_txdesc[i].tx_dmamap = 0;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
if (bus_dmamap_create(sc->ti_mbuftx_dmat, 0,
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
&sc->ti_cdata.ti_txdesc[i].tx_dmamap))
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
return (ENOBUFS);
}
for (i = 0; i < TI_STD_RX_RING_CNT; i++) {
if (bus_dmamap_create(sc->ti_mbufrx_dmat, 0,
&sc->ti_cdata.ti_rx_std_maps[i]))
return (ENOBUFS);
}
for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) {
if (bus_dmamap_create(sc->ti_jumbo_dmat, 0,
&sc->ti_cdata.ti_rx_jumbo_maps[i]))
return (ENOBUFS);
}
for (i = 0; i < TI_MINI_RX_RING_CNT; i++) {
if (bus_dmamap_create(sc->ti_mbufrx_dmat, 0,
&sc->ti_cdata.ti_rx_mini_maps[i]))
return (ENOBUFS);
}
return (0);
}
static void
ti_free_dmamaps(struct ti_softc *sc)
{
int i;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
if (sc->ti_mbuftx_dmat)
for (i = 0; i < TI_TX_RING_CNT; i++)
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
if (sc->ti_cdata.ti_txdesc[i].tx_dmamap) {
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
bus_dmamap_destroy(sc->ti_mbuftx_dmat,
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
sc->ti_cdata.ti_txdesc[i].tx_dmamap);
sc->ti_cdata.ti_txdesc[i].tx_dmamap = 0;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
}
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
if (sc->ti_mbufrx_dmat)
for (i = 0; i < TI_STD_RX_RING_CNT; i++)
if (sc->ti_cdata.ti_rx_std_maps[i]) {
bus_dmamap_destroy(sc->ti_mbufrx_dmat,
sc->ti_cdata.ti_rx_std_maps[i]);
sc->ti_cdata.ti_rx_std_maps[i] = 0;
}
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
if (sc->ti_jumbo_dmat)
for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++)
if (sc->ti_cdata.ti_rx_jumbo_maps[i]) {
bus_dmamap_destroy(sc->ti_jumbo_dmat,
sc->ti_cdata.ti_rx_jumbo_maps[i]);
sc->ti_cdata.ti_rx_jumbo_maps[i] = 0;
}
if (sc->ti_mbufrx_dmat)
for (i = 0; i < TI_MINI_RX_RING_CNT; i++)
if (sc->ti_cdata.ti_rx_mini_maps[i]) {
bus_dmamap_destroy(sc->ti_mbufrx_dmat,
sc->ti_cdata.ti_rx_mini_maps[i]);
sc->ti_cdata.ti_rx_mini_maps[i] = 0;
}
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
}
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#ifdef TI_PRIVATE_JUMBOS
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* Memory management for the jumbo receive ring is a pain in the
* butt. We need to allocate at least 9018 bytes of space per frame,
* _and_ it has to be contiguous (unless you use the extended
* jumbo descriptor format). Using malloc() all the time won't
* work: malloc() allocates memory in powers of two, which means we
* would end up wasting a considerable amount of space by allocating
* 9K chunks. We don't have a jumbo mbuf cluster pool. Thus, we have
* to do our own memory management.
*
* The driver needs to allocate a contiguous chunk of memory at boot
* time. We then chop this up ourselves into 9K pieces and use them
* as external mbuf storage.
*
* One issue here is how much memory to allocate. The jumbo ring has
* 256 slots in it, but at 9K per slot than can consume over 2MB of
* RAM. This is a bit much, especially considering we also need
* RAM for the standard ring and mini ring (on the Tigon 2). To
* save space, we only actually allocate enough memory for 64 slots
* by default, which works out to between 500 and 600K. This can
* be tuned by changing a #define in if_tireg.h.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static int
ti_alloc_jumbo_mem(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
caddr_t ptr;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
int i;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_jpool_entry *entry;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
/*
* Grab a big chunk o' storage. Since we are chopping this pool up
* into ~9k chunks, there doesn't appear to be a need to use page
* alignment.
*/
Allocate the jumbo rx frame buffer with busdma.
2005-12-10 08:58:48 +00:00
if (bus_dma_tag_create(sc->ti_parent_dmat, /* parent */
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
1, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
Allocate the jumbo rx frame buffer with busdma.
2005-12-10 08:58:48 +00:00
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
TI_JMEM, /* maxsize */
1, /* nsegments */
TI_JMEM, /* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->ti_jumbo_dmat) != 0) {
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
device_printf(sc->ti_dev, "Failed to allocate jumbo dmat\n");
Allocate the jumbo rx frame buffer with busdma.
2005-12-10 08:58:48 +00:00
return (ENOBUFS);
}
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
Allocate the jumbo rx frame buffer with busdma.
2005-12-10 08:58:48 +00:00
if (bus_dmamem_alloc(sc->ti_jumbo_dmat,
(void**)&sc->ti_cdata.ti_jumbo_buf,
BUS_DMA_NOWAIT, &sc->ti_jumbo_dmamap) != 0) {
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
device_printf(sc->ti_dev, "Failed to allocate jumbo memory\n");
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (ENOBUFS);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
SLIST_INIT(&sc->ti_jfree_listhead);
SLIST_INIT(&sc->ti_jinuse_listhead);
/*
* Now divide it up into 9K pieces and save the addresses
(Introduce something sitting in my repo for 3 weeks now...) Have if_ti stop "hiding" the softc pointer in the buffer region. Rather, use the available void * passed to the free routine and pass the softc pointer through there. To note: in MEXTADD(), TI_JUMBO_FRAMELEN should probably be TI_JLEN. I left it unchanged, because this way I'm sure to not damage anything in this respect...
2000-10-21 00:13:35 +00:00
* in an array.
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
*/
ptr = sc->ti_cdata.ti_jumbo_buf;
for (i = 0; i < TI_JSLOTS; i++) {
(Introduce something sitting in my repo for 3 weeks now...) Have if_ti stop "hiding" the softc pointer in the buffer region. Rather, use the available void * passed to the free routine and pass the softc pointer through there. To note: in MEXTADD(), TI_JUMBO_FRAMELEN should probably be TI_JLEN. I left it unchanged, because this way I'm sure to not damage anything in this respect...
2000-10-21 00:13:35 +00:00
sc->ti_cdata.ti_jslots[i] = ptr;
ptr += TI_JLEN;
Whitespace nits
2004-07-05 22:35:18 +00:00
entry = malloc(sizeof(struct ti_jpool_entry),
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
M_DEVBUF, M_NOWAIT);
if (entry == NULL) {
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
device_printf(sc->ti_dev, "no memory for jumbo "
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
"buffer queue!\n");
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (ENOBUFS);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
entry->slot = i;
SLIST_INSERT_HEAD(&sc->ti_jfree_listhead, entry, jpool_entries);
}
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/*
* Allocate a jumbo buffer.
*/
static void *ti_jalloc(sc)
struct ti_softc *sc;
{
Whitespace pass.
2004-07-05 22:46:28 +00:00
struct ti_jpool_entry *entry;
Whitespace nits
2004-07-05 22:35:18 +00:00
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
entry = SLIST_FIRST(&sc->ti_jfree_listhead);
Whitespace nits
2004-07-05 22:35:18 +00:00
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (entry == NULL) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "no free jumbo buffers\n");
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (NULL);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
SLIST_REMOVE_HEAD(&sc->ti_jfree_listhead, jpool_entries);
SLIST_INSERT_HEAD(&sc->ti_jinuse_listhead, entry, jpool_entries);
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (sc->ti_cdata.ti_jslots[entry->slot]);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/*
* Release a jumbo buffer.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_jfree(buf, args)
catch up with mextfree callback change when TI_PRIVATE_JUMBOS is defined. Pointed out by: kdm
2002-06-29 11:26:05 +00:00
void *buf;
Replace the mbuf external reference counting code with something that should be better. The old code counted references to mbuf clusters by using the offset of the cluster from the start of memory allocated for mbufs and clusters as an index into an array of chars, which did the reference counting. If the external storage was not a cluster then reference counting had to be done by the code using that external storage. NetBSD's system of linked lists of mbufs was cosidered, but Alfred felt it would have locking issues when the kernel was made more SMP friendly. The system implimented uses a pool of unions to track external storage. The union contains an int for counting the references and a pointer for forming a free list. The reference counts are incremented and decremented atomically and so should be SMP friendly. This system can track reference counts for any sort of external storage. Access to the reference counting stuff is now through macros defined in mbuf.h, so it should be easier to make changes to the system in the future. The possibility of storing the reference count in one of the referencing mbufs was considered, but was rejected 'cos it would often leave extra mbufs allocated. Storing the reference count in the cluster was also considered, but because the external storage may not be a cluster this isn't an option. The size of the pool of reference counters is available in the stats provided by "netstat -m". PR: 19866 Submitted by: Bosko Milekic <bmilekic@dsuper.net> Reviewed by: alfred (glanced at by others on -net)
2000-08-19 08:32:59 +00:00
void *args;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
{
struct ti_softc *sc;
Whitespace pass.
2004-07-05 22:46:28 +00:00
int i;
struct ti_jpool_entry *entry;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Extract the softc struct pointer. */
(Introduce something sitting in my repo for 3 weeks now...) Have if_ti stop "hiding" the softc pointer in the buffer region. Rather, use the available void * passed to the free routine and pass the softc pointer through there. To note: in MEXTADD(), TI_JUMBO_FRAMELEN should probably be TI_JLEN. I left it unchanged, because this way I'm sure to not damage anything in this respect...
2000-10-21 00:13:35 +00:00
sc = (struct ti_softc *)args;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (sc == NULL)
(Introduce something sitting in my repo for 3 weeks now...) Have if_ti stop "hiding" the softc pointer in the buffer region. Rather, use the available void * passed to the free routine and pass the softc pointer through there. To note: in MEXTADD(), TI_JUMBO_FRAMELEN should probably be TI_JLEN. I left it unchanged, because this way I'm sure to not damage anything in this respect...
2000-10-21 00:13:35 +00:00
panic("ti_jfree: didn't get softc pointer!");
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* calculate the slot this buffer belongs to */
(Introduce something sitting in my repo for 3 weeks now...) Have if_ti stop "hiding" the softc pointer in the buffer region. Rather, use the available void * passed to the free routine and pass the softc pointer through there. To note: in MEXTADD(), TI_JUMBO_FRAMELEN should probably be TI_JLEN. I left it unchanged, because this way I'm sure to not damage anything in this respect...
2000-10-21 00:13:35 +00:00
i = ((vm_offset_t)buf
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
- (vm_offset_t)sc->ti_cdata.ti_jumbo_buf) / TI_JLEN;
if ((i < 0) || (i >= TI_JSLOTS))
panic("ti_jfree: asked to free buffer that we don't manage!");
Replace the mbuf external reference counting code with something that should be better. The old code counted references to mbuf clusters by using the offset of the cluster from the start of memory allocated for mbufs and clusters as an index into an array of chars, which did the reference counting. If the external storage was not a cluster then reference counting had to be done by the code using that external storage. NetBSD's system of linked lists of mbufs was cosidered, but Alfred felt it would have locking issues when the kernel was made more SMP friendly. The system implimented uses a pool of unions to track external storage. The union contains an int for counting the references and a pointer for forming a free list. The reference counts are incremented and decremented atomically and so should be SMP friendly. This system can track reference counts for any sort of external storage. Access to the reference counting stuff is now through macros defined in mbuf.h, so it should be easier to make changes to the system in the future. The possibility of storing the reference count in one of the referencing mbufs was considered, but was rejected 'cos it would often leave extra mbufs allocated. Storing the reference count in the cluster was also considered, but because the external storage may not be a cluster this isn't an option. The size of the pool of reference counters is available in the stats provided by "netstat -m". PR: 19866 Submitted by: Bosko Milekic <bmilekic@dsuper.net> Reviewed by: alfred (glanced at by others on -net)
2000-08-19 08:32:59 +00:00
entry = SLIST_FIRST(&sc->ti_jinuse_listhead);
if (entry == NULL)
panic("ti_jfree: buffer not in use!");
entry->slot = i;
SLIST_REMOVE_HEAD(&sc->ti_jinuse_listhead, jpool_entries);
SLIST_INSERT_HEAD(&sc->ti_jfree_listhead, entry, jpool_entries);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
#else
static int
ti_alloc_jumbo_mem(sc)
struct ti_softc *sc;
{
/*
* The VM system will take care of providing aligned pages. Alignment
* is set to 1 here so that busdma resources won't be wasted.
*/
if (bus_dma_tag_create(sc->ti_parent_dmat, /* parent */
1, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
PAGE_SIZE * 4 /*XXX*/, /* maxsize */
4, /* nsegments */
PAGE_SIZE, /* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->ti_jumbo_dmat) != 0) {
device_printf(sc->ti_dev, "Failed to allocate jumbo dmat\n");
return (ENOBUFS);
}
return (0);
}
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#endif /* TI_PRIVATE_JUMBOS */
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* Intialize a standard receive ring descriptor.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static int
ti_newbuf_std(sc, i, m)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
int i;
struct mbuf *m;
{
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
bus_dmamap_t map;
bus_dma_segment_t segs;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct mbuf *m_new = NULL;
struct ti_rx_desc *r;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
int nsegs;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
nsegs = 0;
Clean up the buffer allocation code a bit. Make sure to initialize certain critical mbuf fields to sane values. Simplify the use of ETHER_ALIGN to enforce payload alignment, and turn it on on the x86 as well as alpha since it helps with NFS which wants the payload to be longword aligned even though the hardware doesn't require it. This fixes a problem with the ti driver causing an unaligned access trap on the Alpha due to m_adj() sometimes not setting the alignment correctly because of incomplete mbuf initialization.
1999-07-23 18:46:24 +00:00
if (m == NULL) {
Back out M_* changes, per decision of the TRB. Approved by: trb
2003-02-19 05:47:46 +00:00
MGETHDR(m_new, M_DONTWAIT, MT_DATA);
Remove printf's on mbuf/cluster allocation failures. There are now equivalent and less dangerous (rate limited) messages in the mbuf allocation code. MFC after: 3 days
2001-12-14 05:56:35 +00:00
if (m_new == NULL)
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (ENOBUFS);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
Back out M_* changes, per decision of the TRB. Approved by: trb
2003-02-19 05:47:46 +00:00
MCLGET(m_new, M_DONTWAIT);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (!(m_new->m_flags & M_EXT)) {
m_freem(m_new);
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (ENOBUFS);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
Clean up the buffer allocation code a bit. Make sure to initialize certain critical mbuf fields to sane values. Simplify the use of ETHER_ALIGN to enforce payload alignment, and turn it on on the x86 as well as alpha since it helps with NFS which wants the payload to be longword aligned even though the hardware doesn't require it. This fixes a problem with the ti driver causing an unaligned access trap on the Alpha due to m_adj() sometimes not setting the alignment correctly because of incomplete mbuf initialization.
1999-07-23 18:46:24 +00:00
m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
} else {
m_new = m;
m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
m_new->m_data = m_new->m_ext.ext_buf;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
Remove ti_refill_rx_rings() and associated stuff; replace dirty RX buffers in ti_rxeof() instead. This doesn't really seem to provide much in the way of a performance boost, and I'm pretty sure it can cause mbuf leakage in some extreme cases.
1999-07-05 20:19:41 +00:00
m_adj(m_new, ETHER_ALIGN);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
sc->ti_cdata.ti_rx_std_chain[i] = m_new;
r = &sc->ti_rdata->ti_rx_std_ring[i];
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
map = sc->ti_cdata.ti_rx_std_maps[i];
if (bus_dmamap_load_mbuf_sg(sc->ti_mbufrx_dmat, map, m_new, &segs,
&nsegs, 0))
return (ENOBUFS);
if (nsegs != 1)
return (ENOBUFS);
ti_hostaddr64(&r->ti_addr, segs.ds_addr);
r->ti_len = segs.ds_len;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
r->ti_type = TI_BDTYPE_RECV_BD;
r->ti_flags = 0;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
if (sc->ti_ifp->if_hwassist)
Add support for offloading IP/TCP/UDP checksums to NIC hardware which supports them.
2000-03-27 19:14:27 +00:00
r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
r->ti_idx = i;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
bus_dmamap_sync(sc->ti_mbufrx_dmat, map, BUS_DMASYNC_PREREAD);
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/*
* Intialize a mini receive ring descriptor. This only applies to
* the Tigon 2.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static int
ti_newbuf_mini(sc, i, m)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
int i;
struct mbuf *m;
{
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
bus_dma_segment_t segs;
bus_dmamap_t map;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct mbuf *m_new = NULL;
struct ti_rx_desc *r;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
int nsegs;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
nsegs = 0;
Clean up the buffer allocation code a bit. Make sure to initialize certain critical mbuf fields to sane values. Simplify the use of ETHER_ALIGN to enforce payload alignment, and turn it on on the x86 as well as alpha since it helps with NFS which wants the payload to be longword aligned even though the hardware doesn't require it. This fixes a problem with the ti driver causing an unaligned access trap on the Alpha due to m_adj() sometimes not setting the alignment correctly because of incomplete mbuf initialization.
1999-07-23 18:46:24 +00:00
if (m == NULL) {
Back out M_* changes, per decision of the TRB. Approved by: trb
2003-02-19 05:47:46 +00:00
MGETHDR(m_new, M_DONTWAIT, MT_DATA);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (m_new == NULL) {
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (ENOBUFS);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
Clean up the buffer allocation code a bit. Make sure to initialize certain critical mbuf fields to sane values. Simplify the use of ETHER_ALIGN to enforce payload alignment, and turn it on on the x86 as well as alpha since it helps with NFS which wants the payload to be longword aligned even though the hardware doesn't require it. This fixes a problem with the ti driver causing an unaligned access trap on the Alpha due to m_adj() sometimes not setting the alignment correctly because of incomplete mbuf initialization.
1999-07-23 18:46:24 +00:00
m_new->m_len = m_new->m_pkthdr.len = MHLEN;
} else {
m_new = m;
m_new->m_data = m_new->m_pktdat;
m_new->m_len = m_new->m_pkthdr.len = MHLEN;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
Clean up the buffer allocation code a bit. Make sure to initialize certain critical mbuf fields to sane values. Simplify the use of ETHER_ALIGN to enforce payload alignment, and turn it on on the x86 as well as alpha since it helps with NFS which wants the payload to be longword aligned even though the hardware doesn't require it. This fixes a problem with the ti driver causing an unaligned access trap on the Alpha due to m_adj() sometimes not setting the alignment correctly because of incomplete mbuf initialization.
1999-07-23 18:46:24 +00:00
Remove ti_refill_rx_rings() and associated stuff; replace dirty RX buffers in ti_rxeof() instead. This doesn't really seem to provide much in the way of a performance boost, and I'm pretty sure it can cause mbuf leakage in some extreme cases.
1999-07-05 20:19:41 +00:00
m_adj(m_new, ETHER_ALIGN);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
r = &sc->ti_rdata->ti_rx_mini_ring[i];
sc->ti_cdata.ti_rx_mini_chain[i] = m_new;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
map = sc->ti_cdata.ti_rx_mini_maps[i];
if (bus_dmamap_load_mbuf_sg(sc->ti_mbufrx_dmat, map, m_new, &segs,
&nsegs, 0))
return (ENOBUFS);
if (nsegs != 1)
return (ENOBUFS);
ti_hostaddr64(&r->ti_addr, segs.ds_addr);
r->ti_len = segs.ds_len;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
r->ti_type = TI_BDTYPE_RECV_BD;
r->ti_flags = TI_BDFLAG_MINI_RING;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
if (sc->ti_ifp->if_hwassist)
Add support for offloading IP/TCP/UDP checksums to NIC hardware which supports them.
2000-03-27 19:14:27 +00:00
r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
r->ti_idx = i;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
bus_dmamap_sync(sc->ti_mbufrx_dmat, map, BUS_DMASYNC_PREREAD);
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#ifdef TI_PRIVATE_JUMBOS
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* Initialize a jumbo receive ring descriptor. This allocates
* a jumbo buffer from the pool managed internally by the driver.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static int
ti_newbuf_jumbo(sc, i, m)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
int i;
struct mbuf *m;
{
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
bus_dmamap_t map;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct mbuf *m_new = NULL;
struct ti_rx_desc *r;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
int nsegs;
bus_dma_segment_t segs;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
Clean up the buffer allocation code a bit. Make sure to initialize certain critical mbuf fields to sane values. Simplify the use of ETHER_ALIGN to enforce payload alignment, and turn it on on the x86 as well as alpha since it helps with NFS which wants the payload to be longword aligned even though the hardware doesn't require it. This fixes a problem with the ti driver causing an unaligned access trap on the Alpha due to m_adj() sometimes not setting the alignment correctly because of incomplete mbuf initialization.
1999-07-23 18:46:24 +00:00
if (m == NULL) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
caddr_t *buf = NULL;
/* Allocate the mbuf. */
Back out M_* changes, per decision of the TRB. Approved by: trb
2003-02-19 05:47:46 +00:00
MGETHDR(m_new, M_DONTWAIT, MT_DATA);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (m_new == NULL) {
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (ENOBUFS);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/* Allocate the jumbo buffer */
buf = ti_jalloc(sc);
if (buf == NULL) {
m_freem(m_new);
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "jumbo allocation failed "
"-- packet dropped!\n");
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (ENOBUFS);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/* Attach the buffer to the mbuf. */
Replace the mbuf external reference counting code with something that should be better. The old code counted references to mbuf clusters by using the offset of the cluster from the start of memory allocated for mbufs and clusters as an index into an array of chars, which did the reference counting. If the external storage was not a cluster then reference counting had to be done by the code using that external storage. NetBSD's system of linked lists of mbufs was cosidered, but Alfred felt it would have locking issues when the kernel was made more SMP friendly. The system implimented uses a pool of unions to track external storage. The union contains an int for counting the references and a pointer for forming a free list. The reference counts are incremented and decremented atomically and so should be SMP friendly. This system can track reference counts for any sort of external storage. Access to the reference counting stuff is now through macros defined in mbuf.h, so it should be easier to make changes to the system in the future. The possibility of storing the reference count in one of the referencing mbufs was considered, but was rejected 'cos it would often leave extra mbufs allocated. Storing the reference count in the cluster was also considered, but because the external storage may not be a cluster this isn't an option. The size of the pool of reference counters is available in the stats provided by "netstat -m". PR: 19866 Submitted by: Bosko Milekic <bmilekic@dsuper.net> Reviewed by: alfred (glanced at by others on -net)
2000-08-19 08:32:59 +00:00
m_new->m_data = (void *) buf;
m_new->m_len = m_new->m_pkthdr.len = TI_JUMBO_FRAMELEN;
(Introduce something sitting in my repo for 3 weeks now...) Have if_ti stop "hiding" the softc pointer in the buffer region. Rather, use the available void * passed to the free routine and pass the softc pointer through there. To note: in MEXTADD(), TI_JUMBO_FRAMELEN should probably be TI_JLEN. I left it unchanged, because this way I'm sure to not damage anything in this respect...
2000-10-21 00:13:35 +00:00
MEXTADD(m_new, buf, TI_JUMBO_FRAMELEN, ti_jfree,
Change MEXTADD usage to pass the two new arguments. Reviewed by: jlemon
2000-11-11 23:08:22 +00:00
(struct ti_softc *)sc, 0, EXT_NET_DRV);
Clean up the buffer allocation code a bit. Make sure to initialize certain critical mbuf fields to sane values. Simplify the use of ETHER_ALIGN to enforce payload alignment, and turn it on on the x86 as well as alpha since it helps with NFS which wants the payload to be longword aligned even though the hardware doesn't require it. This fixes a problem with the ti driver causing an unaligned access trap on the Alpha due to m_adj() sometimes not setting the alignment correctly because of incomplete mbuf initialization.
1999-07-23 18:46:24 +00:00
} else {
m_new = m;
m_new->m_data = m_new->m_ext.ext_buf;
m_new->m_ext.ext_size = TI_JUMBO_FRAMELEN;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
Minor glitch in ti_newbuf_jumbo(): m_adj() was being called on m instead of m_new. Submitted by: Kenneth D. Merry <ken@kdm.org>
1999-08-14 15:45:03 +00:00
m_adj(m_new, ETHER_ALIGN);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Set up the descriptor. */
r = &sc->ti_rdata->ti_rx_jumbo_ring[i];
sc->ti_cdata.ti_rx_jumbo_chain[i] = m_new;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
map = sc->ti_cdata.ti_rx_jumbo_maps[i];
if (bus_dmamap_load_mbuf_sg(sc->ti_jumbo_dmat, map, m_new, &segs,
&nsegs, 0))
return (ENOBUFS);
if (nsegs != 1)
return (ENOBUFS);
ti_hostaddr64(&r->ti_addr, segs.ds_addr);
r->ti_len = segs.ds_len;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
r->ti_type = TI_BDTYPE_RECV_JUMBO_BD;
r->ti_flags = TI_BDFLAG_JUMBO_RING;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
if (sc->ti_ifp->if_hwassist)
Add support for offloading IP/TCP/UDP checksums to NIC hardware which supports them.
2000-03-27 19:14:27 +00:00
r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
r->ti_idx = i;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
bus_dmamap_sync(sc->ti_jumbo_dmat, map, BUS_DMASYNC_PREREAD);
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#else
#if (PAGE_SIZE == 4096)
#define NPAYLOAD 2
#else
#define NPAYLOAD 1
Whitespace nits
2004-07-05 22:35:18 +00:00
#endif
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#define TCP_HDR_LEN (52 + sizeof(struct ether_header))
#define UDP_HDR_LEN (28 + sizeof(struct ether_header))
#define NFS_HDR_LEN (UDP_HDR_LEN)
Static'ify a variable. Submitted by: Matt Emmerton <matt@gsicomp.on.ca>
2002-10-03 06:44:01 +00:00
static int HDR_LEN = TCP_HDR_LEN;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
Whitespace pass.
2004-07-05 22:46:28 +00:00
/*
* Initialize a jumbo receive ring descriptor. This allocates
* a jumbo buffer from the pool managed internally by the driver.
*/
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
static int
ti_newbuf_jumbo(sc, idx, m_old)
Whitespace pass.
2004-07-05 22:46:28 +00:00
struct ti_softc *sc;
int idx;
struct mbuf *m_old;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
{
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
bus_dmamap_t map;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
struct mbuf *cur, *m_new = NULL;
struct mbuf *m[3] = {NULL, NULL, NULL};
struct ti_rx_desc_ext *r;
vm_page_t frame;
Update the Tigon 1 and 2 driver to use the sf_buf API for implementing zero-copy receive of jumbo frames. This eliminates the need for the jumbo frame allocator implemented in kern/uipc_jumbo.c and sys/jumbo.h. Remove it. Note: Zero-copy receive of jumbo frames did not work without these changes; I believe there was insufficient locking on the jumbo vm object. Tested by: ken@ Discussed with: gallatin@
2004-12-06 00:43:40 +00:00
static int color;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
/* 1 extra buf to make nobufs easy*/
Update the Tigon 1 and 2 driver to use the sf_buf API for implementing zero-copy receive of jumbo frames. This eliminates the need for the jumbo frame allocator implemented in kern/uipc_jumbo.c and sys/jumbo.h. Remove it. Note: Zero-copy receive of jumbo frames did not work without these changes; I believe there was insufficient locking on the jumbo vm object. Tested by: ken@ Discussed with: gallatin@
2004-12-06 00:43:40 +00:00
struct sf_buf *sf[3] = {NULL, NULL, NULL};
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
int i;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
bus_dma_segment_t segs[4];
int nsegs;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
if (m_old != NULL) {
m_new = m_old;
cur = m_old->m_next;
for (i = 0; i <= NPAYLOAD; i++){
m[i] = cur;
cur = cur->m_next;
}
} else {
/* Allocate the mbufs. */
Back out M_* changes, per decision of the TRB. Approved by: trb
2003-02-19 05:47:46 +00:00
MGETHDR(m_new, M_DONTWAIT, MT_DATA);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
if (m_new == NULL) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "mbuf allocation failed "
"-- packet dropped!\n");
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
goto nobufs;
}
Back out M_* changes, per decision of the TRB. Approved by: trb
2003-02-19 05:47:46 +00:00
MGET(m[NPAYLOAD], M_DONTWAIT, MT_DATA);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
if (m[NPAYLOAD] == NULL) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "cluster mbuf allocation failed "
"-- packet dropped!\n");
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
goto nobufs;
}
Back out M_* changes, per decision of the TRB. Approved by: trb
2003-02-19 05:47:46 +00:00
MCLGET(m[NPAYLOAD], M_DONTWAIT);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
if ((m[NPAYLOAD]->m_flags & M_EXT) == 0) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "mbuf allocation failed "
"-- packet dropped!\n");
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
goto nobufs;
}
m[NPAYLOAD]->m_len = MCLBYTES;
for (i = 0; i < NPAYLOAD; i++){
Back out M_* changes, per decision of the TRB. Approved by: trb
2003-02-19 05:47:46 +00:00
MGET(m[i], M_DONTWAIT, MT_DATA);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
if (m[i] == NULL) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "mbuf allocation failed "
"-- packet dropped!\n");
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
goto nobufs;
}
Update the Tigon 1 and 2 driver to use the sf_buf API for implementing zero-copy receive of jumbo frames. This eliminates the need for the jumbo frame allocator implemented in kern/uipc_jumbo.c and sys/jumbo.h. Remove it. Note: Zero-copy receive of jumbo frames did not work without these changes; I believe there was insufficient locking on the jumbo vm object. Tested by: ken@ Discussed with: gallatin@
2004-12-06 00:43:40 +00:00
frame = vm_page_alloc(NULL, color++,
VM_ALLOC_INTERRUPT | VM_ALLOC_NOOBJ |
VM_ALLOC_WIRED);
if (frame == NULL) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "buffer allocation "
"failed -- packet dropped!\n");
Update the Tigon 1 and 2 driver to use the sf_buf API for implementing zero-copy receive of jumbo frames. This eliminates the need for the jumbo frame allocator implemented in kern/uipc_jumbo.c and sys/jumbo.h. Remove it. Note: Zero-copy receive of jumbo frames did not work without these changes; I believe there was insufficient locking on the jumbo vm object. Tested by: ken@ Discussed with: gallatin@
2004-12-06 00:43:40 +00:00
printf(" index %d page %d\n", idx, i);
goto nobufs;
}
sf[i] = sf_buf_alloc(frame, SFB_NOWAIT);
if (sf[i] == NULL) {
vm_page_lock_queues();
vm_page_unwire(frame, 0);
vm_page_free(frame);
vm_page_unlock_queues();
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "buffer allocation "
"failed -- packet dropped!\n");
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
printf(" index %d page %d\n", idx, i);
Whitespace pass.
2004-07-05 22:46:28 +00:00
goto nobufs;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
}
}
for (i = 0; i < NPAYLOAD; i++){
Whitespace pass.
2004-07-05 22:46:28 +00:00
/* Attach the buffer to the mbuf. */
Update the Tigon 1 and 2 driver to use the sf_buf API for implementing zero-copy receive of jumbo frames. This eliminates the need for the jumbo frame allocator implemented in kern/uipc_jumbo.c and sys/jumbo.h. Remove it. Note: Zero-copy receive of jumbo frames did not work without these changes; I believe there was insufficient locking on the jumbo vm object. Tested by: ken@ Discussed with: gallatin@
2004-12-06 00:43:40 +00:00
m[i]->m_data = (void *)sf_buf_kva(sf[i]);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
m[i]->m_len = PAGE_SIZE;
Update the Tigon 1 and 2 driver to use the sf_buf API for implementing zero-copy receive of jumbo frames. This eliminates the need for the jumbo frame allocator implemented in kern/uipc_jumbo.c and sys/jumbo.h. Remove it. Note: Zero-copy receive of jumbo frames did not work without these changes; I believe there was insufficient locking on the jumbo vm object. Tested by: ken@ Discussed with: gallatin@
2004-12-06 00:43:40 +00:00
MEXTADD(m[i], sf_buf_kva(sf[i]), PAGE_SIZE,
sf_buf_mext, sf[i], 0, EXT_DISPOSABLE);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
m[i]->m_next = m[i+1];
}
/* link the buffers to the header */
m_new->m_next = m[0];
m_new->m_data += ETHER_ALIGN;
if (sc->ti_hdrsplit)
m_new->m_len = MHLEN - ETHER_ALIGN;
else
Whitespace pass.
2004-07-05 22:46:28 +00:00
m_new->m_len = HDR_LEN;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
m_new->m_pkthdr.len = NPAYLOAD * PAGE_SIZE + m_new->m_len;
}
/* Set up the descriptor. */
r = &sc->ti_rdata->ti_rx_jumbo_ring[idx];
sc->ti_cdata.ti_rx_jumbo_chain[idx] = m_new;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
map = sc->ti_cdata.ti_rx_jumbo_maps[i];
if (bus_dmamap_load_mbuf_sg(sc->ti_jumbo_dmat, map, m_new, segs,
&nsegs, 0))
return (ENOBUFS);
if ((nsegs < 1) || (nsegs > 4))
return (ENOBUFS);
ti_hostaddr64(&r->ti_addr0, segs[0].ds_addr);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
r->ti_len0 = m_new->m_len;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
ti_hostaddr64(&r->ti_addr1, segs[1].ds_addr);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
r->ti_len1 = PAGE_SIZE;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
ti_hostaddr64(&r->ti_addr2, segs[2].ds_addr);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
r->ti_len2 = m[1]->m_ext.ext_size; /* could be PAGE_SIZE or MCLBYTES */
if (PAGE_SIZE == 4096) {
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
ti_hostaddr64(&r->ti_addr3, segs[3].ds_addr);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
r->ti_len3 = MCLBYTES;
} else {
r->ti_len3 = 0;
}
Whitespace pass.
2004-07-05 22:46:28 +00:00
r->ti_type = TI_BDTYPE_RECV_JUMBO_BD;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
Whitespace pass.
2004-07-05 22:46:28 +00:00
r->ti_flags = TI_BDFLAG_JUMBO_RING|TI_RCB_FLAG_USE_EXT_RX_BD;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
if (sc->ti_ifp->if_hwassist)
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM|TI_BDFLAG_IP_CKSUM;
Whitespace pass.
2004-07-05 22:46:28 +00:00
r->ti_idx = idx;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
bus_dmamap_sync(sc->ti_jumbo_dmat, map, BUS_DMASYNC_PREREAD);
Whitespace pass.
2004-07-05 22:46:28 +00:00
return (0);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
Whitespace pass.
2004-07-05 22:46:28 +00:00
nobufs:
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
/*
* Warning! :
* This can only be called before the mbufs are strung together.
Whitespace nits
2004-07-05 22:35:18 +00:00
* If the mbufs are strung together, m_freem() will free the chain,
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
* so that the later mbufs will be freed multiple times.
*/
Whitespace pass.
2004-07-05 22:46:28 +00:00
if (m_new)
m_freem(m_new);
for (i = 0; i < 3; i++) {
if (m[i])
m_freem(m[i]);
Update the Tigon 1 and 2 driver to use the sf_buf API for implementing zero-copy receive of jumbo frames. This eliminates the need for the jumbo frame allocator implemented in kern/uipc_jumbo.c and sys/jumbo.h. Remove it. Note: Zero-copy receive of jumbo frames did not work without these changes; I believe there was insufficient locking on the jumbo vm object. Tested by: ken@ Discussed with: gallatin@
2004-12-06 00:43:40 +00:00
if (sf[i])
sf_buf_mext((void *)sf_buf_kva(sf[i]), sf[i]);
Whitespace pass.
2004-07-05 22:46:28 +00:00
}
return (ENOBUFS);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
}
#endif
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* The standard receive ring has 512 entries in it. At 2K per mbuf cluster,
* that's 1MB or memory, which is a lot. For now, we fill only the first
* 256 ring entries and hope that our CPU is fast enough to keep up with
* the NIC.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static int
ti_init_rx_ring_std(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
int i;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_cmd_desc cmd;
for (i = 0; i < TI_SSLOTS; i++) {
if (ti_newbuf_std(sc, i, NULL) == ENOBUFS)
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (ENOBUFS);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
};
TI_UPDATE_STDPROD(sc, i - 1);
Remove ti_refill_rx_rings() and associated stuff; replace dirty RX buffers in ti_rxeof() instead. This doesn't really seem to provide much in the way of a performance boost, and I'm pretty sure it can cause mbuf leakage in some extreme cases.
1999-07-05 20:19:41 +00:00
sc->ti_std = i - 1;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_free_rx_ring_std(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
bus_dmamap_t map;
int i;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
for (i = 0; i < TI_STD_RX_RING_CNT; i++) {
if (sc->ti_cdata.ti_rx_std_chain[i] != NULL) {
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
map = sc->ti_cdata.ti_rx_std_maps[i];
bus_dmamap_sync(sc->ti_mbufrx_dmat, map,
BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(sc->ti_mbufrx_dmat, map);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
m_freem(sc->ti_cdata.ti_rx_std_chain[i]);
sc->ti_cdata.ti_rx_std_chain[i] = NULL;
}
bzero((char *)&sc->ti_rdata->ti_rx_std_ring[i],
sizeof(struct ti_rx_desc));
}
}
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static int
ti_init_rx_ring_jumbo(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
int i;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_cmd_desc cmd;
Update the Tigon driver to support 1000baseTX gigE over copper AceNIC cards. This basically involves switching to the 12.4.13 firmware, plus a couple of minor tweaks to the driver. Also changed the jumbo buffer allocation scheme just a little to avoid 'failed to allocate jumbo buffer' conditions in certain cases.
2000-07-20 22:24:43 +00:00
for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (ti_newbuf_jumbo(sc, i, NULL) == ENOBUFS)
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (ENOBUFS);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
};
TI_UPDATE_JUMBOPROD(sc, i - 1);
Remove ti_refill_rx_rings() and associated stuff; replace dirty RX buffers in ti_rxeof() instead. This doesn't really seem to provide much in the way of a performance boost, and I'm pretty sure it can cause mbuf leakage in some extreme cases.
1999-07-05 20:19:41 +00:00
sc->ti_jumbo = i - 1;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_free_rx_ring_jumbo(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
bus_dmamap_t map;
int i;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) {
if (sc->ti_cdata.ti_rx_jumbo_chain[i] != NULL) {
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
map = sc->ti_cdata.ti_rx_jumbo_maps[i];
bus_dmamap_sync(sc->ti_jumbo_dmat, map,
BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(sc->ti_jumbo_dmat, map);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
m_freem(sc->ti_cdata.ti_rx_jumbo_chain[i]);
sc->ti_cdata.ti_rx_jumbo_chain[i] = NULL;
}
bzero((char *)&sc->ti_rdata->ti_rx_jumbo_ring[i],
sizeof(struct ti_rx_desc));
}
}
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static int
ti_init_rx_ring_mini(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
int i;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
for (i = 0; i < TI_MSLOTS; i++) {
if (ti_newbuf_mini(sc, i, NULL) == ENOBUFS)
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (ENOBUFS);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
};
TI_UPDATE_MINIPROD(sc, i - 1);
Remove ti_refill_rx_rings() and associated stuff; replace dirty RX buffers in ti_rxeof() instead. This doesn't really seem to provide much in the way of a performance boost, and I'm pretty sure it can cause mbuf leakage in some extreme cases.
1999-07-05 20:19:41 +00:00
sc->ti_mini = i - 1;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_free_rx_ring_mini(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
bus_dmamap_t map;
int i;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
for (i = 0; i < TI_MINI_RX_RING_CNT; i++) {
if (sc->ti_cdata.ti_rx_mini_chain[i] != NULL) {
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
map = sc->ti_cdata.ti_rx_mini_maps[i];
bus_dmamap_sync(sc->ti_mbufrx_dmat, map,
BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(sc->ti_mbufrx_dmat, map);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
m_freem(sc->ti_cdata.ti_rx_mini_chain[i]);
sc->ti_cdata.ti_rx_mini_chain[i] = NULL;
}
bzero((char *)&sc->ti_rdata->ti_rx_mini_ring[i],
sizeof(struct ti_rx_desc));
}
}
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_free_tx_ring(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
struct ti_txdesc *txd;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
int i;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (sc->ti_rdata->ti_tx_ring == NULL)
return;
for (i = 0; i < TI_TX_RING_CNT; i++) {
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
txd = &sc->ti_cdata.ti_txdesc[i];
if (txd->tx_m != NULL) {
bus_dmamap_sync(sc->ti_mbuftx_dmat, txd->tx_dmamap,
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
BUS_DMASYNC_POSTWRITE);
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
bus_dmamap_unload(sc->ti_mbuftx_dmat, txd->tx_dmamap);
m_freem(txd->tx_m);
txd->tx_m = NULL;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
bzero((char *)&sc->ti_rdata->ti_tx_ring[i],
sizeof(struct ti_tx_desc));
}
}
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static int
ti_init_tx_ring(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
struct ti_txdesc *txd;
int i;
STAILQ_INIT(&sc->ti_cdata.ti_txfreeq);
STAILQ_INIT(&sc->ti_cdata.ti_txbusyq);
for (i = 0; i < TI_TX_RING_CNT; i++) {
txd = &sc->ti_cdata.ti_txdesc[i];
STAILQ_INSERT_TAIL(&sc->ti_cdata.ti_txfreeq, txd, tx_q);
}
Add a transmit descriptor usage counter and use it to absolutely, positively not let ti_encap() fill up the TX ring all the way and wrap around. This fixes a potential transmit lockup where a really fast machine (or particular TX traffic pattern) can overrun the end of the ring. Reported by: John Plevyak <jplevyak@inktomi.com>
1999-06-19 00:36:56 +00:00
sc->ti_txcnt = 0;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
sc->ti_tx_saved_considx = 0;
Cache the tx producer index instead of reading it every time ti_start is called.
2005-12-28 08:36:32 +00:00
sc->ti_tx_saved_prodidx = 0;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
CSR_WRITE_4(sc, TI_MB_SENDPROD_IDX, 0);
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/*
* The Tigon 2 firmware has a new way to add/delete multicast addresses,
* but we have to support the old way too so that Tigon 1 cards will
* work.
*/
Be consistent about functions being static. Spotted by: FlexeLint.
2002-10-16 09:04:52 +00:00
static void
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
ti_add_mcast(sc, addr)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
struct ether_addr *addr;
{
struct ti_cmd_desc cmd;
u_int16_t *m;
u_int32_t ext[2] = {0, 0};
m = (u_int16_t *)&addr->octet[0];
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
switch (sc->ti_hwrev) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
case TI_HWREV_TIGON:
CSR_WRITE_4(sc, TI_GCR_MAR0, htons(m[0]));
CSR_WRITE_4(sc, TI_GCR_MAR1, (htons(m[1]) << 16) | htons(m[2]));
TI_DO_CMD(TI_CMD_ADD_MCAST_ADDR, 0, 0);
break;
case TI_HWREV_TIGON_II:
ext[0] = htons(m[0]);
ext[1] = (htons(m[1]) << 16) | htons(m[2]);
TI_DO_CMD_EXT(TI_CMD_EXT_ADD_MCAST, 0, 0, (caddr_t)&ext, 2);
break;
default:
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "unknown hwrev\n");
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
break;
}
}
Be consistent about functions being static. Spotted by: FlexeLint.
2002-10-16 09:04:52 +00:00
static void
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
ti_del_mcast(sc, addr)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
struct ether_addr *addr;
{
struct ti_cmd_desc cmd;
u_int16_t *m;
u_int32_t ext[2] = {0, 0};
m = (u_int16_t *)&addr->octet[0];
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
switch (sc->ti_hwrev) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
case TI_HWREV_TIGON:
CSR_WRITE_4(sc, TI_GCR_MAR0, htons(m[0]));
CSR_WRITE_4(sc, TI_GCR_MAR1, (htons(m[1]) << 16) | htons(m[2]));
TI_DO_CMD(TI_CMD_DEL_MCAST_ADDR, 0, 0);
break;
case TI_HWREV_TIGON_II:
ext[0] = htons(m[0]);
ext[1] = (htons(m[1]) << 16) | htons(m[2]);
TI_DO_CMD_EXT(TI_CMD_EXT_DEL_MCAST, 0, 0, (caddr_t)&ext, 2);
break;
default:
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "unknown hwrev\n");
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
break;
}
}
/*
* Configure the Tigon's multicast address filter.
*
* The actual multicast table management is a bit of a pain, thanks to
* slight brain damage on the part of both Alteon and us. With our
* multicast code, we are only alerted when the multicast address table
* changes and at that point we only have the current list of addresses:
* we only know the current state, not the previous state, so we don't
* actually know what addresses were removed or added. The firmware has
* state, but we can't get our grubby mits on it, and there is no 'delete
* all multicast addresses' command. Hence, we have to maintain our own
* state so we know what addresses have been programmed into the NIC at
* any given time.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_setmulti(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
struct ifnet *ifp;
struct ifmultiaddr *ifma;
struct ti_cmd_desc cmd;
struct ti_mc_entry *mc;
u_int32_t intrs;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
TI_LOCK_ASSERT(sc);
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
ifp = sc->ti_ifp;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (ifp->if_flags & IFF_ALLMULTI) {
TI_DO_CMD(TI_CMD_SET_ALLMULTI, TI_CMD_CODE_ALLMULTI_ENB, 0);
return;
} else {
TI_DO_CMD(TI_CMD_SET_ALLMULTI, TI_CMD_CODE_ALLMULTI_DIS, 0);
}
/* Disable interrupts. */
intrs = CSR_READ_4(sc, TI_MB_HOSTINTR);
CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1);
/* First, zot all the existing filters. */
Mechanical change to use <sys/queue.h> macro API instead of fondling implementation details. Created with: sed(1) Reviewed by: md5(1)
2001-02-04 13:13:25 +00:00
while (SLIST_FIRST(&sc->ti_mc_listhead) != NULL) {
mc = SLIST_FIRST(&sc->ti_mc_listhead);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
ti_del_mcast(sc, &mc->mc_addr);
SLIST_REMOVE_HEAD(&sc->ti_mc_listhead, mc_entries);
free(mc, M_DEVBUF);
}
/* Now program new ones. */
Modify device drivers supporting multicast addresses to lock if_addr_mtx over iteration of their multicast address lists when synchronizing the hardware address filter with the network stack-maintained list. Problem reported by: Ed Maste (emaste at phaedrus dot sandvine dot ca> MFC after: 1 week
2005-08-03 00:18:35 +00:00
IF_ADDR_LOCK(ifp);
Convert if_multiaddrs from LIST to TAILQ so that it can be traversed backwards in the three drivers which want to do that. Reviewed by: mikeh
2001-02-06 10:12:15 +00:00
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (ifma->ifma_addr->sa_family != AF_LINK)
continue;
mc = malloc(sizeof(struct ti_mc_entry), M_DEVBUF, M_NOWAIT);
deal with malloc failure when setting up the multicast filter Noticed by: Coverity Prevent analysis tool
2005-03-26 23:26:49 +00:00
if (mc == NULL) {
if_printf(ifp, "no memory for mcast filter entry\n");
continue;
}
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
bcopy(LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
(char *)&mc->mc_addr, ETHER_ADDR_LEN);
SLIST_INSERT_HEAD(&sc->ti_mc_listhead, mc, mc_entries);
ti_add_mcast(sc, &mc->mc_addr);
}
Modify device drivers supporting multicast addresses to lock if_addr_mtx over iteration of their multicast address lists when synchronizing the hardware address filter with the network stack-maintained list. Problem reported by: Ed Maste (emaste at phaedrus dot sandvine dot ca> MFC after: 1 week
2005-08-03 00:18:35 +00:00
IF_ADDR_UNLOCK(ifp);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Re-enable interrupts. */
CSR_WRITE_4(sc, TI_MB_HOSTINTR, intrs);
}
/*
* Check to see if the BIOS has configured us for a 64 bit slot when
* we aren't actually in one. If we detect this condition, we can work
* around it on the Tigon 2 by setting a bit in the PCI state register,
* but for the Tigon 1 we must give up and abort the interface attach.
*/
static int ti_64bitslot_war(sc)
struct ti_softc *sc;
{
if (!(CSR_READ_4(sc, TI_PCI_STATE) & TI_PCISTATE_32BIT_BUS)) {
CSR_WRITE_4(sc, 0x600, 0);
CSR_WRITE_4(sc, 0x604, 0);
CSR_WRITE_4(sc, 0x600, 0x5555AAAA);
if (CSR_READ_4(sc, 0x604) == 0x5555AAAA) {
if (sc->ti_hwrev == TI_HWREV_TIGON)
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (EINVAL);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
else {
TI_SETBIT(sc, TI_PCI_STATE,
TI_PCISTATE_32BIT_BUS);
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
}
}
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/*
* Do endian, PCI and DMA initialization. Also check the on-board ROM
* self-test results.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static int
ti_chipinit(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
u_int32_t cacheline;
u_int32_t pci_writemax = 0;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
u_int32_t hdrsplit;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Initialize link to down state. */
sc->ti_linkstat = TI_EV_CODE_LINK_DOWN;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
if (sc->ti_ifp->if_capenable & IFCAP_HWCSUM)
sc->ti_ifp->if_hwassist = TI_CSUM_FEATURES;
Have the driver advertise that it is capable of hardware checksums, and allow the user to control the setting. (checksums are enabled by default)
2001-09-18 18:40:22 +00:00
else
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
sc->ti_ifp->if_hwassist = 0;
Add support for offloading IP/TCP/UDP checksums to NIC hardware which supports them.
2000-03-27 19:14:27 +00:00
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Set endianness before we access any non-PCI registers. */
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
#if 0 && BYTE_ORDER == BIG_ENDIAN
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
CSR_WRITE_4(sc, TI_MISC_HOST_CTL,
TI_MHC_BIGENDIAN_INIT | (TI_MHC_BIGENDIAN_INIT << 24));
#else
CSR_WRITE_4(sc, TI_MISC_HOST_CTL,
TI_MHC_LITTLEENDIAN_INIT | (TI_MHC_LITTLEENDIAN_INIT << 24));
#endif
/* Check the ROM failed bit to see if self-tests passed. */
if (CSR_READ_4(sc, TI_CPU_STATE) & TI_CPUSTATE_ROMFAIL) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "board self-diagnostics failed!\n");
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (ENODEV);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/* Halt the CPU. */
TI_SETBIT(sc, TI_CPU_STATE, TI_CPUSTATE_HALT);
/* Figure out the hardware revision. */
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
switch (CSR_READ_4(sc, TI_MISC_HOST_CTL) & TI_MHC_CHIP_REV_MASK) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
case TI_REV_TIGON_I:
sc->ti_hwrev = TI_HWREV_TIGON;
break;
case TI_REV_TIGON_II:
sc->ti_hwrev = TI_HWREV_TIGON_II;
break;
default:
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "unsupported chip revision\n");
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (ENODEV);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/* Do special setup for Tigon 2. */
if (sc->ti_hwrev == TI_HWREV_TIGON_II) {
TI_SETBIT(sc, TI_CPU_CTL_B, TI_CPUSTATE_HALT);
Fix the definitions for memory bank sizes, which I somehow got wrong. The constant I was using was correct, but I mislabeled it as 256K when it should have been 512K. This doesn't actually change the code, but it clarifies things somewhat. Submitted by: Chuck Cranor <chuck@research.att.com>
2001-04-26 16:40:45 +00:00
TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_SRAM_BANK_512K);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
TI_SETBIT(sc, TI_MISC_CONF, TI_MCR_SRAM_SYNCHRONOUS);
}
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
/*
* We don't have firmware source for the Tigon 1, so Tigon 1 boards
* can't do header splitting.
*/
#ifdef TI_JUMBO_HDRSPLIT
if (sc->ti_hwrev != TI_HWREV_TIGON)
sc->ti_hdrsplit = 1;
else
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp,
"can't do header splitting on a Tigon I board\n");
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#endif /* TI_JUMBO_HDRSPLIT */
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Set up the PCI state register. */
CSR_WRITE_4(sc, TI_PCI_STATE, TI_PCI_READ_CMD|TI_PCI_WRITE_CMD);
if (sc->ti_hwrev == TI_HWREV_TIGON_II) {
TI_SETBIT(sc, TI_PCI_STATE, TI_PCISTATE_USE_MEM_RD_MULT);
}
/* Clear the read/write max DMA parameters. */
TI_CLRBIT(sc, TI_PCI_STATE, (TI_PCISTATE_WRITE_MAXDMA|
TI_PCISTATE_READ_MAXDMA));
/* Get cache line size. */
cacheline = CSR_READ_4(sc, TI_PCI_BIST) & 0xFF;
/*
* If the system has set enabled the PCI memory write
* and invalidate command in the command register, set
* the write max parameter accordingly. This is necessary
* to use MWI with the Tigon 2.
*/
if (CSR_READ_4(sc, TI_PCI_CMDSTAT) & PCIM_CMD_MWIEN) {
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
switch (cacheline) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
case 1:
case 4:
case 8:
case 16:
case 32:
case 64:
break;
default:
/* Disable PCI memory write and invalidate. */
if (bootverbose)
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "cache line size %d not "
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
"supported; disabling PCI MWI\n",
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
cacheline);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
CSR_WRITE_4(sc, TI_PCI_CMDSTAT, CSR_READ_4(sc,
TI_PCI_CMDSTAT) & ~PCIM_CMD_MWIEN);
break;
}
}
#ifdef __brokenalpha__
/*
* From the Alteon sample driver:
* Must insure that we do not cross an 8K (bytes) boundary
Whitespace nits
2004-07-05 22:35:18 +00:00
* for DMA reads. Our highest limit is 1K bytes. This is a
* restriction on some ALPHA platforms with early revision
* 21174 PCI chipsets, such as the AlphaPC 164lx
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
*/
TI_SETBIT(sc, TI_PCI_STATE, pci_writemax|TI_PCI_READMAX_1024);
#else
TI_SETBIT(sc, TI_PCI_STATE, pci_writemax);
#endif
/* This sets the min dma param all the way up (0xff). */
TI_SETBIT(sc, TI_PCI_STATE, TI_PCISTATE_MINDMA);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
if (sc->ti_hdrsplit)
hdrsplit = TI_OPMODE_JUMBO_HDRSPLIT;
else
hdrsplit = 0;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Configure DMA variables. */
#if BYTE_ORDER == BIG_ENDIAN
CSR_WRITE_4(sc, TI_GCR_OPMODE, TI_OPMODE_BYTESWAP_BD |
TI_OPMODE_BYTESWAP_DATA | TI_OPMODE_WORDSWAP_BD |
TI_OPMODE_WARN_ENB | TI_OPMODE_FATAL_ENB |
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
TI_OPMODE_DONT_FRAG_JUMBO | hdrsplit);
#else /* BYTE_ORDER */
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
CSR_WRITE_4(sc, TI_GCR_OPMODE, TI_OPMODE_BYTESWAP_DATA|
TI_OPMODE_WORDSWAP_BD|TI_OPMODE_DONT_FRAG_JUMBO|
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
TI_OPMODE_WARN_ENB|TI_OPMODE_FATAL_ENB | hdrsplit);
#endif /* BYTE_ORDER */
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* Only allow 1 DMA channel to be active at a time.
* I don't think this is a good idea, but without it
* the firmware racks up lots of nicDmaReadRingFull
Add support for offloading IP/TCP/UDP checksums to NIC hardware which supports them.
2000-03-27 19:14:27 +00:00
* errors. This is not compatible with hardware checksums.
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
*/
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
if (sc->ti_ifp->if_hwassist == 0)
Add support for offloading IP/TCP/UDP checksums to NIC hardware which supports them.
2000-03-27 19:14:27 +00:00
TI_SETBIT(sc, TI_GCR_OPMODE, TI_OPMODE_1_DMA_ACTIVE);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Recommended settings from Tigon manual. */
CSR_WRITE_4(sc, TI_GCR_DMA_WRITECFG, TI_DMA_STATE_THRESH_8W);
CSR_WRITE_4(sc, TI_GCR_DMA_READCFG, TI_DMA_STATE_THRESH_8W);
if (ti_64bitslot_war(sc)) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "bios thinks we're in a 64 bit slot, "
"but we aren't");
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (EINVAL);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/*
* Initialize the general information block and firmware, and
* start the CPU(s) running.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static int
ti_gibinit(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
struct ti_rcb *rcb;
int i;
struct ifnet *ifp;
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
uint32_t rdphys;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
TI_LOCK_ASSERT(sc);
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
ifp = sc->ti_ifp;
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
rdphys = sc->ti_rdata_phys;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Disable interrupts for now. */
CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1);
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
/*
* Tell the chip where to find the general information block.
* While this struct could go into >4GB memory, we allocate it in a
* single slab with the other descriptors, and those don't seem to
* support being located in a 64-bit region.
*/
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
CSR_WRITE_4(sc, TI_GCR_GENINFO_HI, 0);
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
CSR_WRITE_4(sc, TI_GCR_GENINFO_LO, rdphys + TI_RD_OFF(ti_info));
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Load the firmware into SRAM. */
ti_loadfw(sc);
/* Set up the contents of the general info and ring control blocks. */
/* Set up the event ring and producer pointer. */
rcb = &sc->ti_rdata->ti_info.ti_ev_rcb;
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
TI_HOSTADDR(rcb->ti_hostaddr) = rdphys + TI_RD_OFF(ti_event_ring);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
rcb->ti_flags = 0;
TI_HOSTADDR(sc->ti_rdata->ti_info.ti_ev_prodidx_ptr) =
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
rdphys + TI_RD_OFF(ti_ev_prodidx_r);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
sc->ti_ev_prodidx.ti_idx = 0;
CSR_WRITE_4(sc, TI_GCR_EVENTCONS_IDX, 0);
sc->ti_ev_saved_considx = 0;
/* Set up the command ring and producer mailbox. */
rcb = &sc->ti_rdata->ti_info.ti_cmd_rcb;
TI_HOSTADDR(rcb->ti_hostaddr) = TI_GCR_NIC_ADDR(TI_GCR_CMDRING);
rcb->ti_flags = 0;
rcb->ti_max_len = 0;
for (i = 0; i < TI_CMD_RING_CNT; i++) {
CSR_WRITE_4(sc, TI_GCR_CMDRING + (i * 4), 0);
}
CSR_WRITE_4(sc, TI_GCR_CMDCONS_IDX, 0);
CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, 0);
sc->ti_cmd_saved_prodidx = 0;
/*
* Assign the address of the stats refresh buffer.
* We re-use the current stats buffer for this to
* conserve memory.
*/
TI_HOSTADDR(sc->ti_rdata->ti_info.ti_refresh_stats_ptr) =
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
rdphys + TI_RD_OFF(ti_info.ti_stats);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Set up the standard receive ring. */
rcb = &sc->ti_rdata->ti_info.ti_std_rx_rcb;
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
TI_HOSTADDR(rcb->ti_hostaddr) = rdphys + TI_RD_OFF(ti_rx_std_ring);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
rcb->ti_max_len = TI_FRAMELEN;
rcb->ti_flags = 0;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
if (sc->ti_ifp->if_hwassist)
Add support for offloading IP/TCP/UDP checksums to NIC hardware which supports them.
2000-03-27 19:14:27 +00:00
rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM |
TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST;
/* Set up the jumbo receive ring. */
rcb = &sc->ti_rdata->ti_info.ti_jumbo_rx_rcb;
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
TI_HOSTADDR(rcb->ti_hostaddr) = rdphys + TI_RD_OFF(ti_rx_jumbo_ring);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#ifdef TI_PRIVATE_JUMBOS
Clean up the buffer allocation code a bit. Make sure to initialize certain critical mbuf fields to sane values. Simplify the use of ETHER_ALIGN to enforce payload alignment, and turn it on on the x86 as well as alpha since it helps with NFS which wants the payload to be longword aligned even though the hardware doesn't require it. This fixes a problem with the ti driver causing an unaligned access trap on the Alpha due to m_adj() sometimes not setting the alignment correctly because of incomplete mbuf initialization.
1999-07-23 18:46:24 +00:00
rcb->ti_max_len = TI_JUMBO_FRAMELEN;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
rcb->ti_flags = 0;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#else
rcb->ti_max_len = PAGE_SIZE;
rcb->ti_flags = TI_RCB_FLAG_USE_EXT_RX_BD;
#endif
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
if (sc->ti_ifp->if_hwassist)
Add support for offloading IP/TCP/UDP checksums to NIC hardware which supports them.
2000-03-27 19:14:27 +00:00
rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM |
TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST;
/*
* Set up the mini ring. Only activated on the
* Tigon 2 but the slot in the config block is
* still there on the Tigon 1.
*/
rcb = &sc->ti_rdata->ti_info.ti_mini_rx_rcb;
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
TI_HOSTADDR(rcb->ti_hostaddr) = rdphys + TI_RD_OFF(ti_rx_mini_ring);
Remember to account for ETHER_ALIGN when setting the maxmimum packet length for mini receive ring. The max length was MHLEN, however the mbufs are actually shortened to MHLEN - ETHER_ALIGN to force payload alignment. PR: 13793
1999-09-17 18:04:14 +00:00
rcb->ti_max_len = MHLEN - ETHER_ALIGN;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (sc->ti_hwrev == TI_HWREV_TIGON)
rcb->ti_flags = TI_RCB_FLAG_RING_DISABLED;
else
rcb->ti_flags = 0;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
if (sc->ti_ifp->if_hwassist)
Add support for offloading IP/TCP/UDP checksums to NIC hardware which supports them.
2000-03-27 19:14:27 +00:00
rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM |
TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST;
/*
* Set up the receive return ring.
*/
rcb = &sc->ti_rdata->ti_info.ti_return_rcb;
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
TI_HOSTADDR(rcb->ti_hostaddr) = rdphys + TI_RD_OFF(ti_rx_return_ring);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
rcb->ti_flags = 0;
rcb->ti_max_len = TI_RETURN_RING_CNT;
TI_HOSTADDR(sc->ti_rdata->ti_info.ti_return_prodidx_ptr) =
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
rdphys + TI_RD_OFF(ti_return_prodidx_r);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* Set up the tx ring. Note: for the Tigon 2, we have the option
* of putting the transmit ring in the host's address space and
* letting the chip DMA it instead of leaving the ring in the NIC's
* memory and accessing it through the shared memory region. We
* do this for the Tigon 2, but it doesn't work on the Tigon 1,
* so we have to revert to the shared memory scheme if we detect
* a Tigon 1 chip.
*/
CSR_WRITE_4(sc, TI_WINBASE, TI_TX_RING_BASE);
bzero((char *)sc->ti_rdata->ti_tx_ring,
TI_TX_RING_CNT * sizeof(struct ti_tx_desc));
rcb = &sc->ti_rdata->ti_info.ti_tx_rcb;
if (sc->ti_hwrev == TI_HWREV_TIGON)
rcb->ti_flags = 0;
else
rcb->ti_flags = TI_RCB_FLAG_HOST_RING;
rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
if (sc->ti_ifp->if_hwassist)
Add support for offloading IP/TCP/UDP checksums to NIC hardware which supports them.
2000-03-27 19:14:27 +00:00
rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM |
TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
rcb->ti_max_len = TI_TX_RING_CNT;
if (sc->ti_hwrev == TI_HWREV_TIGON)
TI_HOSTADDR(rcb->ti_hostaddr) = TI_TX_RING_BASE;
else
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
TI_HOSTADDR(rcb->ti_hostaddr) = rdphys + TI_RD_OFF(ti_tx_ring);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
TI_HOSTADDR(sc->ti_rdata->ti_info.ti_tx_considx_ptr) =
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
rdphys + TI_RD_OFF(ti_tx_considx_r);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
bus_dmamap_sync(sc->ti_rdata_dmat, sc->ti_rdata_dmamap,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Set up tuneables */
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#if 0
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN))
CSR_WRITE_4(sc, TI_GCR_RX_COAL_TICKS,
(sc->ti_rx_coal_ticks / 10));
else
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#endif
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
CSR_WRITE_4(sc, TI_GCR_RX_COAL_TICKS, sc->ti_rx_coal_ticks);
CSR_WRITE_4(sc, TI_GCR_TX_COAL_TICKS, sc->ti_tx_coal_ticks);
CSR_WRITE_4(sc, TI_GCR_STAT_TICKS, sc->ti_stat_ticks);
CSR_WRITE_4(sc, TI_GCR_RX_MAX_COAL_BD, sc->ti_rx_max_coal_bds);
CSR_WRITE_4(sc, TI_GCR_TX_MAX_COAL_BD, sc->ti_tx_max_coal_bds);
CSR_WRITE_4(sc, TI_GCR_TX_BUFFER_RATIO, sc->ti_tx_buf_ratio);
/* Turn interrupts on. */
CSR_WRITE_4(sc, TI_GCR_MASK_INTRS, 0);
CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0);
/* Start CPU. */
TI_CLRBIT(sc, TI_CPU_STATE, (TI_CPUSTATE_HALT|TI_CPUSTATE_STEP));
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
static void
ti_rdata_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
struct ti_softc *sc;
sc = arg;
if (error || nseg != 1)
return;
/*
* All of the Tigon data structures need to live at <4GB. This
* cast is fine since busdma was told about this constraint.
*/
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
sc->ti_rdata_phys = segs[0].ds_addr;
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
return;
}
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* Probe for a Tigon chip. Check the PCI vendor and device IDs
* against our list and return its name if we find a match.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static int
ti_probe(dev)
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
device_t dev;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
{
struct ti_type *t;
t = ti_devs;
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
while (t->ti_name != NULL) {
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
if ((pci_get_vendor(dev) == t->ti_vid) &&
(pci_get_device(dev) == t->ti_did)) {
device_set_desc(dev, t->ti_name);
Return BUS_PROBE_DEFAULT instead of 0.
2005-02-24 21:32:56 +00:00
return (BUS_PROBE_DEFAULT);
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
}
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
t++;
}
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (ENXIO);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static int
ti_attach(dev)
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
device_t dev;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
{
struct ifnet *ifp;
struct ti_softc *sc;
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
int error = 0, rid;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
u_char eaddr[6];
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
sc = device_get_softc(dev);
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
sc->ti_unit = device_get_unit(dev);
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
sc->ti_dev = dev;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
Change callers of mtx_init() to pass in an appropriate lock type name. In most cases NULL is passed, but in some cases such as network driver locks (which use the MTX_NETWORK_LOCK macro) and UMA zone locks, a name is used. Tested on: i386, alpha, sparc64
2002-04-04 21:03:38 +00:00
mtx_init(&sc->ti_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
MTX_DEF);
Revise attach/detach resource cleanup - Unconditionally call *_stop() if device is in the tree. This is to prevent callouts from happening after the device is gone. Checks for bus_child_present() should be added in the future to keep from touching potentially non-existent hardware in *_detach(). Found by iedowse@. - Always check for and free miibus children, even if the device is not in the tree since some failure cases could have gotten here. - Call ether_ifdetach() in the irq setup failure case - ti(4), xl(4): move ifmedia_init() calls to the beginning of attach so that ifmedia_removeall() can be unconditionally called on detach. There is no way to detect whether ifmedia has been initialized without using a separate variable (as tl(4) does). - Add comments to indicate assumptions of code path
2003-04-17 20:32:06 +00:00
ifmedia_init(&sc->ifmedia, IFM_IMASK, ti_ifmedia_upd, ti_ifmedia_sts);
Fix ifnet fallout in if_ti. Reviewed by: brooks Approved by: re
2005-07-07 01:05:45 +00:00
ifp = sc->ti_ifp = if_alloc(IFT_ETHER);
if (ifp == NULL) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
device_printf(dev, "can not if_alloc()\n");
Fix ifnet fallout in if_ti. Reviewed by: brooks Approved by: re
2005-07-07 01:05:45 +00:00
error = ENOSPC;
goto fail;
}
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
sc->ti_ifp->if_capabilities = IFCAP_HWCSUM |
Enable IFCAP_VLAN_MTU and increase MTU for it. Reviewed by: wpaul
2003-08-05 02:34:35 +00:00
IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
sc->ti_ifp->if_capenable = sc->ti_ifp->if_capabilities;
Initialize/grab the mutex earlier in the attach phase, so that bailing out to the fail: label where we release/destroy the mutex will work without exploding.
2000-12-04 22:46:50 +00:00
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* Map control/status registers.
*/
Big round of minor updates: - Use pci_get_powerstate()/pci_set_powerstate() in all the other drivers that need them so we don't have to fiddle with the PCI power management registers directly. - Use pci_enable_busmaster()/pci_enable_io() to turn on busmastering and PIO/memory mapped accesses. - Add support to the RealTek driver for the D-Link DFE-530TX+ which has a RealTek 8139 with its own PCI ID. (Submitted by Jason Wright) - Have the SiS 900/National DP83815 driver be sure to disable PME mode in sis_reset(). This apparently fixes a problem on some motherboards where the DP83815 chip fails to receive packets. (Submitted by Chuck McCrobie <mccrobie@cablespeed.com>)
2001-02-21 20:54:22 +00:00
pci_enable_busmaster(dev);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
rid = TI_PCI_LOMEM;
Convert callers to the new bus_alloc_resource_any(9) API. Submitted by: Mark Santcroos <marks@ripe.net> Reviewed by: imp, dfr, bde
2004-03-17 17:50:55 +00:00
sc->ti_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
RF_ACTIVE|PCI_RF_DENSE);
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
if (sc->ti_res == NULL) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
device_printf(dev, "couldn't map memory\n");
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
error = ENXIO;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
goto fail;
}
Grrr. Return the rman_get_bustag()/rman_get_bushandle() lines to their proper place in ti_attach(). I'm positive I typed them in there, but they must have fallen victim to a drive-by cut & pasting.
1999-07-23 16:21:43 +00:00
sc->ti_btag = rman_get_bustag(sc->ti_res);
sc->ti_bhandle = rman_get_bushandle(sc->ti_res);
Roar! Finish what I started last night: somehow only the header file change got committed.
1999-07-27 13:54:15 +00:00
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
/* Allocate interrupt */
rid = 0;
Whitespace nits
2004-07-05 22:35:18 +00:00
Convert callers to the new bus_alloc_resource_any(9) API. Submitted by: Mark Santcroos <marks@ripe.net> Reviewed by: imp, dfr, bde
2004-03-17 17:50:55 +00:00
sc->ti_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
RF_SHAREABLE | RF_ACTIVE);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
if (sc->ti_irq == NULL) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
device_printf(dev, "couldn't map interrupt\n");
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
error = ENXIO;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
goto fail;
}
if (ti_chipinit(sc)) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
device_printf(dev, "chip initialization failed\n");
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
error = ENXIO;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
goto fail;
}
/* Zero out the NIC's on-board SRAM. */
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
ti_mem_zero(sc, 0x2000, 0x100000 - 0x2000);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Init again -- zeroing memory may have clobbered some registers. */
if (ti_chipinit(sc)) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
device_printf(dev, "chip initialization failed\n");
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
error = ENXIO;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
goto fail;
}
/*
* Get station address from the EEPROM. Note: the manual states
* that the MAC address is at offset 0x8c, however the data is
* stored as two longwords (since that's how it's loaded into
Preceed/preceeding are not english words. Use precede and preceding.
2001-02-18 10:43:53 +00:00
* the NIC). This means the MAC address is actually preceded
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
* by two zero bytes. We need to skip over those.
*/
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
if (ti_read_eeprom(sc, eaddr,
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
TI_EE_MAC_OFFSET + 2, ETHER_ADDR_LEN)) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
device_printf(dev, "failed to read station address\n");
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
error = ENXIO;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
goto fail;
}
/* Allocate the general information block and ring buffers. */
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
if (bus_dma_tag_create(NULL, /* parent */
1, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
0, /* nsegments */
BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->ti_parent_dmat) != 0) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
device_printf(dev, "Failed to allocate parent dmat\n");
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
error = ENOMEM;
goto fail;
}
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
if (bus_dma_tag_create(sc->ti_parent_dmat, /* parent */
PAGE_SIZE, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
sizeof(struct ti_ring_data), /* maxsize */
1, /* nsegments */
sizeof(struct ti_ring_data), /* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->ti_rdata_dmat) != 0) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
device_printf(dev, "Failed to allocate rdata dmat\n");
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
error = ENOMEM;
goto fail;
}
if (bus_dmamem_alloc(sc->ti_rdata_dmat, (void**)&sc->ti_rdata,
BUS_DMA_NOWAIT, &sc->ti_rdata_dmamap) != 0) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
device_printf(dev, "Failed to allocate rdata memory\n");
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
error = ENOMEM;
goto fail;
}
if (bus_dmamap_load(sc->ti_rdata_dmat, sc->ti_rdata_dmamap,
sc->ti_rdata, sizeof(struct ti_ring_data),
ti_rdata_cb, sc, BUS_DMA_NOWAIT) != 0) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
device_printf(dev, "Failed to load rdata segments\n");
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
error = ENOMEM;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
goto fail;
}
bzero(sc->ti_rdata, sizeof(struct ti_ring_data));
/* Try to allocate memory for jumbo buffers. */
if (ti_alloc_jumbo_mem(sc)) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
device_printf(dev, "jumbo buffer allocation failed\n");
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
error = ENXIO;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
goto fail;
}
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
if (bus_dma_tag_create(sc->ti_parent_dmat, /* parent */
1, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
MCLBYTES * TI_MAXTXSEGS,/* maxsize */
TI_MAXTXSEGS, /* nsegments */
MCLBYTES, /* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->ti_mbuftx_dmat) != 0) {
device_printf(dev, "Failed to allocate rdata dmat\n");
error = ENOMEM;
goto fail;
}
if (bus_dma_tag_create(sc->ti_parent_dmat, /* parent */
1, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
MCLBYTES, /* maxsize */
1, /* nsegments */
MCLBYTES, /* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->ti_mbufrx_dmat) != 0) {
device_printf(dev, "Failed to allocate rdata dmat\n");
error = ENOMEM;
goto fail;
}
if (ti_alloc_dmamaps(sc)) {
device_printf(dev, "dma map creation failed\n");
error = ENXIO;
goto fail;
}
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
Update the Tigon driver to support 1000baseTX gigE over copper AceNIC cards. This basically involves switching to the 12.4.13 firmware, plus a couple of minor tweaks to the driver. Also changed the jumbo buffer allocation scheme just a little to avoid 'failed to allocate jumbo buffer' conditions in certain cases.
2000-07-20 22:24:43 +00:00
/*
* We really need a better way to tell a 1000baseTX card
* from a 1000baseSX one, since in theory there could be
* OEMed 1000baseTX cards from lame vendors who aren't
* clever enough to change the PCI ID. For the moment
* though, the AceNIC is the only copper card available.
*/
if (pci_get_vendor(dev) == ALT_VENDORID &&
pci_get_device(dev) == ALT_DEVICEID_ACENIC_COPPER)
sc->ti_copper = 1;
Add support for the Netgear GA620T copper gigabit card.
2000-08-02 18:49:17 +00:00
/* Ok, it's not the only copper card available. */
if (pci_get_vendor(dev) == NG_VENDORID &&
pci_get_device(dev) == NG_DEVICEID_GA620T)
sc->ti_copper = 1;
Update the Tigon driver to support 1000baseTX gigE over copper AceNIC cards. This basically involves switching to the 12.4.13 firmware, plus a couple of minor tweaks to the driver. Also changed the jumbo buffer allocation scheme just a little to avoid 'failed to allocate jumbo buffer' conditions in certain cases.
2000-07-20 22:24:43 +00:00
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Set default tuneable values. */
sc->ti_stat_ticks = 2 * TI_TICKS_PER_SEC;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#if 0
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
sc->ti_rx_coal_ticks = TI_TICKS_PER_SEC / 5000;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#endif
sc->ti_rx_coal_ticks = 170;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
sc->ti_tx_coal_ticks = TI_TICKS_PER_SEC / 500;
sc->ti_rx_max_coal_bds = 64;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#if 0
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
sc->ti_tx_max_coal_bds = 128;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#endif
sc->ti_tx_max_coal_bds = 32;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
sc->ti_tx_buf_ratio = 21;
/* Set up ifnet structure */
ifp->if_softc = sc;
Replace the if_name and if_unit members of struct ifnet with new members if_xname, if_dname, and if_dunit. if_xname is the name of the interface and if_dname/unit are the driver name and instance. This change paves the way for interface renaming and enhanced pseudo device creation and configuration symantics. Approved By: re (in principle) Reviewed By: njl, imp Tested On: i386, amd64, sparc64 Obtained From: NetBSD (if_xname)
2003-10-31 18:32:15 +00:00
if_initname(ifp, device_get_name(dev), device_get_unit(dev));
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
ifp->if_ioctl = ti_ioctl;
ifp->if_start = ti_start;
ifp->if_watchdog = ti_watchdog;
ifp->if_init = ti_init;
ifp->if_mtu = ETHERMTU;
ifp->if_snd.ifq_maxlen = TI_TX_RING_CNT - 1;
/* Set up ifmedia support. */
Update the Tigon driver to support 1000baseTX gigE over copper AceNIC cards. This basically involves switching to the 12.4.13 firmware, plus a couple of minor tweaks to the driver. Also changed the jumbo buffer allocation scheme just a little to avoid 'failed to allocate jumbo buffer' conditions in certain cases.
2000-07-20 22:24:43 +00:00
if (sc->ti_copper) {
/*
* Copper cards allow manual 10/100 mode selection,
* but not manual 1000baseTX mode selection. Why?
* Becuase currently there's no way to specify the
* master/slave setting through the firmware interface,
* so Alteon decided to just bag it and handle it
* via autonegotiation.
*/
ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
ifmedia_add(&sc->ifmedia,
IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_TX, 0, NULL);
ifmedia_add(&sc->ifmedia,
IFM_ETHER|IFM_100_TX|IFM_FDX, 0, NULL);
Follow NetBSD and s/IFM_1000_TX/IFM_1000_T/
2002-04-28 20:34:20 +00:00
ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_1000_T, 0, NULL);
Update the Tigon driver to support 1000baseTX gigE over copper AceNIC cards. This basically involves switching to the 12.4.13 firmware, plus a couple of minor tweaks to the driver. Also changed the jumbo buffer allocation scheme just a little to avoid 'failed to allocate jumbo buffer' conditions in certain cases.
2000-07-20 22:24:43 +00:00
ifmedia_add(&sc->ifmedia,
Follow NetBSD and s/IFM_1000_TX/IFM_1000_T/
2002-04-28 20:34:20 +00:00
IFM_ETHER|IFM_1000_T|IFM_FDX, 0, NULL);
Update the Tigon driver to support 1000baseTX gigE over copper AceNIC cards. This basically involves switching to the 12.4.13 firmware, plus a couple of minor tweaks to the driver. Also changed the jumbo buffer allocation scheme just a little to avoid 'failed to allocate jumbo buffer' conditions in certain cases.
2000-07-20 22:24:43 +00:00
} else {
/* Fiber cards don't support 10/100 modes. */
ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL);
ifmedia_add(&sc->ifmedia,
IFM_ETHER|IFM_1000_SX|IFM_FDX, 0, NULL);
}
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
ifmedia_set(&sc->ifmedia, IFM_ETHER|IFM_AUTO);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
/*
* We're assuming here that card initialization is a sequential
* thing. If it isn't, multiple cards probing at the same time
* could stomp on the list of softcs here.
*/
/* Register the device */
sc->dev = make_dev(&ti_cdevsw, sc->ti_unit, UID_ROOT, GID_OPERATOR,
0600, "ti%d", sc->ti_unit);
Sanitize the code relating to the /dev/ti%d entries. In particular evict the evil vnode sniffing code and use destroy_dev() instead.
2003-10-10 20:35:28 +00:00
sc->dev->si_drv1 = sc;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
Make all Ethernet drivers attach using ether_ifattach() and detach using ether_ifdetach(). The former consolidates the operations of if_attach(), ng_ether_attach(), and bpfattach(). The latter consolidates the corresponding detach operations. Reviewed by: julian, freebsd-net
2000-07-13 22:54:34 +00:00
* Call MI attach routine.
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
*/
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
ether_ifattach(ifp, eaddr);
Clean up locking and resource management for pci/if_* - Remove locking of the softc in the attach method, instead depending on bus_setup_intr being at the end of attach (delaying interrupt enable until after ether_ifattach is called) - Call *_detach directly in the error case of attach, depending on checking in detach to only free resources that were allocated. This puts all resource freeing in one place, avoiding thinkos that lead to memory leaks. - Add bus_child_present check to calls to *_stop in the detach method to be sure hw is present before touching its registers. - Remove bzero softc calls since device_t should do this for us. - dc: move interrupt allocation back where it was before. It was unnecessary to move it. This reverts part of 1.88 - rl: move irq allocation before ether_ifattach. Problems might have been caused by allocating the irq after enabling interrupts on the card. - rl: call rl_stop before ether_ifdetach - sf: call sf_stop before ether_ifdetach - sis: add missed free of sis_tag - sis: check errors from tag creation - sis: move dmamem_alloc and dmamap_load to happen at same time as tag creation - sk: remove duplicate initialization of sk_dev - ste: add missed bus_generic_detach - ti: call ti_stop before ether_ifdetach - ti: add missed error setting in ti_rdata alloc failure - vr: add missed error setting in I/O, memory mapping cases - xl: add missed error setting in I/O, memory mapping cases - xl: remove multi-level goto on attach failure - xl: move dmamem_alloc and dmamap_load to happen at same time as tag creation - Calls to free(9) are unconditional because it is valid to call free with a null pointer. Reviewed by: imp, mdodd
2003-03-31 17:29:43 +00:00
Revise attach/detach resource cleanup - Unconditionally call *_stop() if device is in the tree. This is to prevent callouts from happening after the device is gone. Checks for bus_child_present() should be added in the future to keep from touching potentially non-existent hardware in *_detach(). Found by iedowse@. - Always check for and free miibus children, even if the device is not in the tree since some failure cases could have gotten here. - Call ether_ifdetach() in the irq setup failure case - ti(4), xl(4): move ifmedia_init() calls to the beginning of attach so that ifmedia_removeall() can be unconditionally called on detach. There is no way to detect whether ifmedia has been initialized without using a separate variable (as tl(4) does). - Add comments to indicate assumptions of code path
2003-04-17 20:32:06 +00:00
/* Hook interrupt last to avoid having to lock softc */
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
error = bus_setup_intr(dev, sc->ti_irq, INTR_TYPE_NET|INTR_MPSAFE,
Clean up locking and resource management for pci/if_* - Remove locking of the softc in the attach method, instead depending on bus_setup_intr being at the end of attach (delaying interrupt enable until after ether_ifattach is called) - Call *_detach directly in the error case of attach, depending on checking in detach to only free resources that were allocated. This puts all resource freeing in one place, avoiding thinkos that lead to memory leaks. - Add bus_child_present check to calls to *_stop in the detach method to be sure hw is present before touching its registers. - Remove bzero softc calls since device_t should do this for us. - dc: move interrupt allocation back where it was before. It was unnecessary to move it. This reverts part of 1.88 - rl: move irq allocation before ether_ifattach. Problems might have been caused by allocating the irq after enabling interrupts on the card. - rl: call rl_stop before ether_ifdetach - sf: call sf_stop before ether_ifdetach - sis: add missed free of sis_tag - sis: check errors from tag creation - sis: move dmamem_alloc and dmamap_load to happen at same time as tag creation - sk: remove duplicate initialization of sk_dev - ste: add missed bus_generic_detach - ti: call ti_stop before ether_ifdetach - ti: add missed error setting in ti_rdata alloc failure - vr: add missed error setting in I/O, memory mapping cases - xl: add missed error setting in I/O, memory mapping cases - xl: remove multi-level goto on attach failure - xl: move dmamem_alloc and dmamap_load to happen at same time as tag creation - Calls to free(9) are unconditional because it is valid to call free with a null pointer. Reviewed by: imp, mdodd
2003-03-31 17:29:43 +00:00
ti_intr, sc, &sc->ti_intrhand);
if (error) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
device_printf(dev, "couldn't set up irq\n");
Clean up locking and resource management for pci/if_* - Remove locking of the softc in the attach method, instead depending on bus_setup_intr being at the end of attach (delaying interrupt enable until after ether_ifattach is called) - Call *_detach directly in the error case of attach, depending on checking in detach to only free resources that were allocated. This puts all resource freeing in one place, avoiding thinkos that lead to memory leaks. - Add bus_child_present check to calls to *_stop in the detach method to be sure hw is present before touching its registers. - Remove bzero softc calls since device_t should do this for us. - dc: move interrupt allocation back where it was before. It was unnecessary to move it. This reverts part of 1.88 - rl: move irq allocation before ether_ifattach. Problems might have been caused by allocating the irq after enabling interrupts on the card. - rl: call rl_stop before ether_ifdetach - sf: call sf_stop before ether_ifdetach - sis: add missed free of sis_tag - sis: check errors from tag creation - sis: move dmamem_alloc and dmamap_load to happen at same time as tag creation - sk: remove duplicate initialization of sk_dev - ste: add missed bus_generic_detach - ti: call ti_stop before ether_ifdetach - ti: add missed error setting in ti_rdata alloc failure - vr: add missed error setting in I/O, memory mapping cases - xl: add missed error setting in I/O, memory mapping cases - xl: remove multi-level goto on attach failure - xl: move dmamem_alloc and dmamap_load to happen at same time as tag creation - Calls to free(9) are unconditional because it is valid to call free with a null pointer. Reviewed by: imp, mdodd
2003-03-31 17:29:43 +00:00
goto fail;
}
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
fail:
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
if (error)
Clean up locking and resource management for pci/if_* - Remove locking of the softc in the attach method, instead depending on bus_setup_intr being at the end of attach (delaying interrupt enable until after ether_ifattach is called) - Call *_detach directly in the error case of attach, depending on checking in detach to only free resources that were allocated. This puts all resource freeing in one place, avoiding thinkos that lead to memory leaks. - Add bus_child_present check to calls to *_stop in the detach method to be sure hw is present before touching its registers. - Remove bzero softc calls since device_t should do this for us. - dc: move interrupt allocation back where it was before. It was unnecessary to move it. This reverts part of 1.88 - rl: move irq allocation before ether_ifattach. Problems might have been caused by allocating the irq after enabling interrupts on the card. - rl: call rl_stop before ether_ifdetach - sf: call sf_stop before ether_ifdetach - sis: add missed free of sis_tag - sis: check errors from tag creation - sis: move dmamem_alloc and dmamap_load to happen at same time as tag creation - sk: remove duplicate initialization of sk_dev - ste: add missed bus_generic_detach - ti: call ti_stop before ether_ifdetach - ti: add missed error setting in ti_rdata alloc failure - vr: add missed error setting in I/O, memory mapping cases - xl: add missed error setting in I/O, memory mapping cases - xl: remove multi-level goto on attach failure - xl: move dmamem_alloc and dmamap_load to happen at same time as tag creation - Calls to free(9) are unconditional because it is valid to call free with a null pointer. Reviewed by: imp, mdodd
2003-03-31 17:29:43 +00:00
ti_detach(dev);
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (error);
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
}
Revise attach/detach resource cleanup - Unconditionally call *_stop() if device is in the tree. This is to prevent callouts from happening after the device is gone. Checks for bus_child_present() should be added in the future to keep from touching potentially non-existent hardware in *_detach(). Found by iedowse@. - Always check for and free miibus children, even if the device is not in the tree since some failure cases could have gotten here. - Call ether_ifdetach() in the irq setup failure case - ti(4), xl(4): move ifmedia_init() calls to the beginning of attach so that ifmedia_removeall() can be unconditionally called on detach. There is no way to detect whether ifmedia has been initialized without using a separate variable (as tl(4) does). - Add comments to indicate assumptions of code path
2003-04-17 20:32:06 +00:00
/*
* Shutdown hardware and free up resources. This can be called any
* time after the mutex has been initialized. It is called in both
* the error case in attach and the normal detach case so it needs
* to be careful about only freeing resources that have actually been
* allocated.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static int
ti_detach(dev)
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
device_t dev;
{
struct ti_softc *sc;
struct ifnet *ifp;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
int attached;
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
sc = device_get_softc(dev);
If resource allocation fails, we could wind up freeing the cdev without it being allocated. Add a simple check for this. Submitted by: yongari
2005-03-31 17:16:40 +00:00
if (sc->dev)
destroy_dev(sc->dev);
Fix KASSERT syntax error.
2003-04-01 08:57:28 +00:00
KASSERT(mtx_initialized(&sc->ti_mtx), ("ti mutex not initialized"));
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
attached = device_is_attached(dev);
First round of converting network drivers from spls to mutexes. This takes care of all the 10/100 and gigE PCI drivers that I've done. Next will be the wireless drivers, then the USB ones. I may pick up some stragglers along the way. I'm sort of playing this by ear: if anyone spots any places where I've screwed up horribly, please let me know.
2000-10-13 17:54:19 +00:00
TI_LOCK(sc);
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
ifp = sc->ti_ifp;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
if (attached)
Revise attach/detach resource cleanup - Unconditionally call *_stop() if device is in the tree. This is to prevent callouts from happening after the device is gone. Checks for bus_child_present() should be added in the future to keep from touching potentially non-existent hardware in *_detach(). Found by iedowse@. - Always check for and free miibus children, even if the device is not in the tree since some failure cases could have gotten here. - Call ether_ifdetach() in the irq setup failure case - ti(4), xl(4): move ifmedia_init() calls to the beginning of attach so that ifmedia_removeall() can be unconditionally called on detach. There is no way to detect whether ifmedia has been initialized without using a separate variable (as tl(4) does). - Add comments to indicate assumptions of code path
2003-04-17 20:32:06 +00:00
ti_stop(sc);
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
TI_UNLOCK(sc);
if (attached)
Clean up locking and resource management for pci/if_* - Remove locking of the softc in the attach method, instead depending on bus_setup_intr being at the end of attach (delaying interrupt enable until after ether_ifattach is called) - Call *_detach directly in the error case of attach, depending on checking in detach to only free resources that were allocated. This puts all resource freeing in one place, avoiding thinkos that lead to memory leaks. - Add bus_child_present check to calls to *_stop in the detach method to be sure hw is present before touching its registers. - Remove bzero softc calls since device_t should do this for us. - dc: move interrupt allocation back where it was before. It was unnecessary to move it. This reverts part of 1.88 - rl: move irq allocation before ether_ifattach. Problems might have been caused by allocating the irq after enabling interrupts on the card. - rl: call rl_stop before ether_ifdetach - sf: call sf_stop before ether_ifdetach - sis: add missed free of sis_tag - sis: check errors from tag creation - sis: move dmamem_alloc and dmamap_load to happen at same time as tag creation - sk: remove duplicate initialization of sk_dev - ste: add missed bus_generic_detach - ti: call ti_stop before ether_ifdetach - ti: add missed error setting in ti_rdata alloc failure - vr: add missed error setting in I/O, memory mapping cases - xl: add missed error setting in I/O, memory mapping cases - xl: remove multi-level goto on attach failure - xl: move dmamem_alloc and dmamap_load to happen at same time as tag creation - Calls to free(9) are unconditional because it is valid to call free with a null pointer. Reviewed by: imp, mdodd
2003-03-31 17:29:43 +00:00
ether_ifdetach(ifp);
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
/* These should only be active if attach succeeded */
if (attached)
Clean up locking and resource management for pci/if_* - Remove locking of the softc in the attach method, instead depending on bus_setup_intr being at the end of attach (delaying interrupt enable until after ether_ifattach is called) - Call *_detach directly in the error case of attach, depending on checking in detach to only free resources that were allocated. This puts all resource freeing in one place, avoiding thinkos that lead to memory leaks. - Add bus_child_present check to calls to *_stop in the detach method to be sure hw is present before touching its registers. - Remove bzero softc calls since device_t should do this for us. - dc: move interrupt allocation back where it was before. It was unnecessary to move it. This reverts part of 1.88 - rl: move irq allocation before ether_ifattach. Problems might have been caused by allocating the irq after enabling interrupts on the card. - rl: call rl_stop before ether_ifdetach - sf: call sf_stop before ether_ifdetach - sis: add missed free of sis_tag - sis: check errors from tag creation - sis: move dmamem_alloc and dmamap_load to happen at same time as tag creation - sk: remove duplicate initialization of sk_dev - ste: add missed bus_generic_detach - ti: call ti_stop before ether_ifdetach - ti: add missed error setting in ti_rdata alloc failure - vr: add missed error setting in I/O, memory mapping cases - xl: add missed error setting in I/O, memory mapping cases - xl: remove multi-level goto on attach failure - xl: move dmamem_alloc and dmamap_load to happen at same time as tag creation - Calls to free(9) are unconditional because it is valid to call free with a null pointer. Reviewed by: imp, mdodd
2003-03-31 17:29:43 +00:00
bus_generic_detach(dev);
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
ti_free_dmamaps(sc);
Revise attach/detach resource cleanup - Unconditionally call *_stop() if device is in the tree. This is to prevent callouts from happening after the device is gone. Checks for bus_child_present() should be added in the future to keep from touching potentially non-existent hardware in *_detach(). Found by iedowse@. - Always check for and free miibus children, even if the device is not in the tree since some failure cases could have gotten here. - Call ether_ifdetach() in the irq setup failure case - ti(4), xl(4): move ifmedia_init() calls to the beginning of attach so that ifmedia_removeall() can be unconditionally called on detach. There is no way to detect whether ifmedia has been initialized without using a separate variable (as tl(4) does). - Add comments to indicate assumptions of code path
2003-04-17 20:32:06 +00:00
ifmedia_removeall(&sc->ifmedia);
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
Allocate the jumbo rx frame buffer with busdma.
2005-12-10 08:58:48 +00:00
#ifdef TI_PRIVATE_JUMBOS
if (sc->ti_cdata.ti_jumbo_buf)
bus_dmamem_free(sc->ti_jumbo_dmat, sc->ti_cdata.ti_jumbo_buf,
sc->ti_jumbo_dmamap);
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
#endif
Allocate the jumbo rx frame buffer with busdma.
2005-12-10 08:58:48 +00:00
if (sc->ti_jumbo_dmat)
bus_dma_tag_destroy(sc->ti_jumbo_dmat);
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
if (sc->ti_mbuftx_dmat)
bus_dma_tag_destroy(sc->ti_mbuftx_dmat);
if (sc->ti_mbufrx_dmat)
bus_dma_tag_destroy(sc->ti_mbufrx_dmat);
Start the process of modernizing the Tigon driver by using busdma for the descriptor and configuration data. Thanks to Martin Nilsson for providing hardware.
2005-03-21 07:17:27 +00:00
if (sc->ti_rdata)
bus_dmamem_free(sc->ti_rdata_dmat, sc->ti_rdata,
sc->ti_rdata_dmamap);
if (sc->ti_rdata_dmat)
bus_dma_tag_destroy(sc->ti_rdata_dmat);
if (sc->ti_parent_dmat)
bus_dma_tag_destroy(sc->ti_parent_dmat);
Clean up locking and resource management for pci/if_* - Remove locking of the softc in the attach method, instead depending on bus_setup_intr being at the end of attach (delaying interrupt enable until after ether_ifattach is called) - Call *_detach directly in the error case of attach, depending on checking in detach to only free resources that were allocated. This puts all resource freeing in one place, avoiding thinkos that lead to memory leaks. - Add bus_child_present check to calls to *_stop in the detach method to be sure hw is present before touching its registers. - Remove bzero softc calls since device_t should do this for us. - dc: move interrupt allocation back where it was before. It was unnecessary to move it. This reverts part of 1.88 - rl: move irq allocation before ether_ifattach. Problems might have been caused by allocating the irq after enabling interrupts on the card. - rl: call rl_stop before ether_ifdetach - sf: call sf_stop before ether_ifdetach - sis: add missed free of sis_tag - sis: check errors from tag creation - sis: move dmamem_alloc and dmamap_load to happen at same time as tag creation - sk: remove duplicate initialization of sk_dev - ste: add missed bus_generic_detach - ti: call ti_stop before ether_ifdetach - ti: add missed error setting in ti_rdata alloc failure - vr: add missed error setting in I/O, memory mapping cases - xl: add missed error setting in I/O, memory mapping cases - xl: remove multi-level goto on attach failure - xl: move dmamem_alloc and dmamap_load to happen at same time as tag creation - Calls to free(9) are unconditional because it is valid to call free with a null pointer. Reviewed by: imp, mdodd
2003-03-31 17:29:43 +00:00
if (sc->ti_intrhand)
bus_teardown_intr(dev, sc->ti_irq, sc->ti_intrhand);
if (sc->ti_irq)
bus_release_resource(dev, SYS_RES_IRQ, 0, sc->ti_irq);
if (sc->ti_res) {
bus_release_resource(dev, SYS_RES_MEMORY, TI_PCI_LOMEM,
sc->ti_res);
}
In detach method, move if_free() after bus_teardown_intr().
2005-10-13 21:11:20 +00:00
if (ifp)
if_free(ifp);
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
First round of converting network drivers from spls to mutexes. This takes care of all the 10/100 and gigE PCI drivers that I've done. Next will be the wireless drivers, then the USB ones. I may pick up some stragglers along the way. I'm sort of playing this by ear: if anyone spots any places where I've screwed up horribly, please let me know.
2000-10-13 17:54:19 +00:00
mtx_destroy(&sc->ti_mtx);
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#ifdef TI_JUMBO_HDRSPLIT
/*
* If hdr_len is 0, that means that header splitting wasn't done on
* this packet for some reason. The two most likely reasons are that
* the protocol isn't a supported protocol for splitting, or this
* packet had a fragment offset that wasn't 0.
*
* The header length, if it is non-zero, will always be the length of
* the headers on the packet, but that length could be longer than the
* first mbuf. So we take the minimum of the two as the actual
Whitespace nits
2004-07-05 22:35:18 +00:00
* length.
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
*/
static __inline void
ti_hdr_split(struct mbuf *top, int hdr_len, int pkt_len, int idx)
{
int i = 0;
int lengths[4] = {0, 0, 0, 0};
struct mbuf *m, *mp;
if (hdr_len != 0)
top->m_len = min(hdr_len, top->m_len);
pkt_len -= top->m_len;
lengths[i++] = top->m_len;
mp = top;
for (m = top->m_next; m && pkt_len; m = m->m_next) {
m->m_len = m->m_ext.ext_size = min(m->m_len, pkt_len);
pkt_len -= m->m_len;
lengths[i++] = m->m_len;
mp = m;
}
#if 0
if (hdr_len != 0)
printf("got split packet: ");
else
printf("got non-split packet: ");
Whitespace nits
2004-07-05 22:35:18 +00:00
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
printf("%d,%d,%d,%d = %d\n", lengths[0],
lengths[1], lengths[2], lengths[3],
lengths[0] + lengths[1] + lengths[2] +
lengths[3]);
#endif
if (pkt_len)
panic("header splitting didn't");
Whitespace nits
2004-07-05 22:35:18 +00:00
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
if (m) {
m_freem(m);
mp->m_next = NULL;
}
if (mp->m_next != NULL)
panic("ti_hdr_split: last mbuf in chain should be null");
}
#endif /* TI_JUMBO_HDRSPLIT */
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* Frame reception handling. This is called if there's a frame
* on the receive return list.
*
* Note: we have to be able to handle three possibilities here:
* 1) the frame is from the mini receive ring (can only happen)
* on Tigon 2 boards)
* 2) the frame is from the jumbo recieve ring
* 3) the frame is from the standard receive ring
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_rxeof(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
bus_dmamap_t map;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ifnet *ifp;
Remove ti_refill_rx_rings() and associated stuff; replace dirty RX buffers in ti_rxeof() instead. This doesn't really seem to provide much in the way of a performance boost, and I'm pretty sure it can cause mbuf leakage in some extreme cases.
1999-07-05 20:19:41 +00:00
struct ti_cmd_desc cmd;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
Drop the driver lock around calls to if_input to avoid a LOR when the packets are immediately returned for sending (e.g. when bridging or packet forwarding). There are more efficient ways to do this but for now use the least intrusive approach. Reviewed by: imp, rwatson
2003-11-14 19:00:32 +00:00
TI_LOCK_ASSERT(sc);
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
ifp = sc->ti_ifp;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
while (sc->ti_rx_saved_considx != sc->ti_return_prodidx.ti_idx) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_rx_desc *cur_rx;
u_int32_t rxidx;
struct mbuf *m = NULL;
u_int16_t vlan_tag = 0;
int have_tag = 0;
cur_rx =
&sc->ti_rdata->ti_rx_return_ring[sc->ti_rx_saved_considx];
rxidx = cur_rx->ti_idx;
TI_INC(sc->ti_rx_saved_considx, TI_RETURN_RING_CNT);
if (cur_rx->ti_flags & TI_BDFLAG_VLAN_TAG) {
have_tag = 1;
Vlan tags are 12 bits, mask off anything above since the chip doesn't seem to do so for us. PR: 27567 Submitted by: Koji HINO hino@ccm.cl.nec.co.jp MFC after: 1 week
2001-05-23 19:25:14 +00:00
vlan_tag = cur_rx->ti_vlan_tag & 0xfff;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
if (cur_rx->ti_flags & TI_BDFLAG_JUMBO_RING) {
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
TI_INC(sc->ti_jumbo, TI_JUMBO_RX_RING_CNT);
m = sc->ti_cdata.ti_rx_jumbo_chain[rxidx];
sc->ti_cdata.ti_rx_jumbo_chain[rxidx] = NULL;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
map = sc->ti_cdata.ti_rx_jumbo_maps[rxidx];
bus_dmamap_sync(sc->ti_jumbo_dmat, map,
BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(sc->ti_jumbo_dmat, map);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (cur_rx->ti_flags & TI_BDFLAG_ERROR) {
ifp->if_ierrors++;
ti_newbuf_jumbo(sc, sc->ti_jumbo, m);
continue;
}
Remove ti_refill_rx_rings() and associated stuff; replace dirty RX buffers in ti_rxeof() instead. This doesn't really seem to provide much in the way of a performance boost, and I'm pretty sure it can cause mbuf leakage in some extreme cases.
1999-07-05 20:19:41 +00:00
if (ti_newbuf_jumbo(sc, sc->ti_jumbo, NULL) == ENOBUFS) {
ifp->if_ierrors++;
ti_newbuf_jumbo(sc, sc->ti_jumbo, m);
continue;
}
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#ifdef TI_PRIVATE_JUMBOS
Whitespace pass.
2004-07-05 22:46:28 +00:00
m->m_len = cur_rx->ti_len;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#else /* TI_PRIVATE_JUMBOS */
#ifdef TI_JUMBO_HDRSPLIT
if (sc->ti_hdrsplit)
ti_hdr_split(m, TI_HOSTADDR(cur_rx->ti_addr),
cur_rx->ti_len, rxidx);
else
#endif /* TI_JUMBO_HDRSPLIT */
Whitespace pass.
2004-07-05 22:46:28 +00:00
m_adj(m, cur_rx->ti_len - m->m_pkthdr.len);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#endif /* TI_PRIVATE_JUMBOS */
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
} else if (cur_rx->ti_flags & TI_BDFLAG_MINI_RING) {
TI_INC(sc->ti_mini, TI_MINI_RX_RING_CNT);
m = sc->ti_cdata.ti_rx_mini_chain[rxidx];
sc->ti_cdata.ti_rx_mini_chain[rxidx] = NULL;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
map = sc->ti_cdata.ti_rx_mini_maps[rxidx];
bus_dmamap_sync(sc->ti_mbufrx_dmat, map,
BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(sc->ti_mbufrx_dmat, map);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (cur_rx->ti_flags & TI_BDFLAG_ERROR) {
ifp->if_ierrors++;
ti_newbuf_mini(sc, sc->ti_mini, m);
continue;
}
Remove ti_refill_rx_rings() and associated stuff; replace dirty RX buffers in ti_rxeof() instead. This doesn't really seem to provide much in the way of a performance boost, and I'm pretty sure it can cause mbuf leakage in some extreme cases.
1999-07-05 20:19:41 +00:00
if (ti_newbuf_mini(sc, sc->ti_mini, NULL) == ENOBUFS) {
ifp->if_ierrors++;
ti_newbuf_mini(sc, sc->ti_mini, m);
continue;
}
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
m->m_len = cur_rx->ti_len;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
} else {
TI_INC(sc->ti_std, TI_STD_RX_RING_CNT);
m = sc->ti_cdata.ti_rx_std_chain[rxidx];
sc->ti_cdata.ti_rx_std_chain[rxidx] = NULL;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
map = sc->ti_cdata.ti_rx_std_maps[rxidx];
bus_dmamap_sync(sc->ti_mbufrx_dmat, map,
BUS_DMASYNC_POSTREAD);
bus_dmamap_unload(sc->ti_mbufrx_dmat, map);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (cur_rx->ti_flags & TI_BDFLAG_ERROR) {
ifp->if_ierrors++;
ti_newbuf_std(sc, sc->ti_std, m);
continue;
}
Remove ti_refill_rx_rings() and associated stuff; replace dirty RX buffers in ti_rxeof() instead. This doesn't really seem to provide much in the way of a performance boost, and I'm pretty sure it can cause mbuf leakage in some extreme cases.
1999-07-05 20:19:41 +00:00
if (ti_newbuf_std(sc, sc->ti_std, NULL) == ENOBUFS) {
ifp->if_ierrors++;
ti_newbuf_std(sc, sc->ti_std, m);
continue;
}
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
m->m_len = cur_rx->ti_len;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
m->m_pkthdr.len = cur_rx->ti_len;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
ifp->if_ipackets++;
m->m_pkthdr.rcvif = ifp;
Add support for offloading IP/TCP/UDP checksums to NIC hardware which supports them.
2000-03-27 19:14:27 +00:00
if (ifp->if_hwassist) {
m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED |
CSUM_DATA_VALID;
if ((cur_rx->ti_ip_cksum ^ 0xffff) == 0)
m->m_pkthdr.csum_flags |= CSUM_IP_VALID;
m->m_pkthdr.csum_data = cur_rx->ti_tcp_udp_cksum;
}
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
o track either_ifattach/ether_ifdetach API changes o use if_input for input packet processing o don't strip the Ethernet header for input packets o use BPF_* macros bpf tapping o call ether_ioctl to handle default ioctl case o track vlan changes Reviewed by: many Approved by: re
2002-11-14 23:49:09 +00:00
* If we received a packet with a vlan tag,
* tag it before passing the packet upward.
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
*/
- Fix VLAN_INPUT_TAG() macro, so that it doesn't touch mtag in case if memory allocation failed. - Remove fourth argument from VLAN_INPUT_TAG(), that was used incorrectly in almost all drivers. Indicate failure with mbuf value of NULL. In collaboration with: yongari, ru, sam
2005-12-18 18:24:27 +00:00
if (have_tag) {
VLAN_INPUT_TAG(ifp, m, vlan_tag);
if (m == NULL)
continue;
}
Drop the driver lock around calls to if_input to avoid a LOR when the packets are immediately returned for sending (e.g. when bridging or packet forwarding). There are more efficient ways to do this but for now use the least intrusive approach. Reviewed by: imp, rwatson
2003-11-14 19:00:32 +00:00
TI_UNLOCK(sc);
o track either_ifattach/ether_ifdetach API changes o use if_input for input packet processing o don't strip the Ethernet header for input packets o use BPF_* macros bpf tapping o call ether_ioctl to handle default ioctl case o track vlan changes Reviewed by: many Approved by: re
2002-11-14 23:49:09 +00:00
(*ifp->if_input)(ifp, m);
Drop the driver lock around calls to if_input to avoid a LOR when the packets are immediately returned for sending (e.g. when bridging or packet forwarding). There are more efficient ways to do this but for now use the least intrusive approach. Reviewed by: imp, rwatson
2003-11-14 19:00:32 +00:00
TI_LOCK(sc);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/* Only necessary on the Tigon 1. */
if (sc->ti_hwrev == TI_HWREV_TIGON)
CSR_WRITE_4(sc, TI_GCR_RXRETURNCONS_IDX,
sc->ti_rx_saved_considx);
Remove ti_refill_rx_rings() and associated stuff; replace dirty RX buffers in ti_rxeof() instead. This doesn't really seem to provide much in the way of a performance boost, and I'm pretty sure it can cause mbuf leakage in some extreme cases.
1999-07-05 20:19:41 +00:00
TI_UPDATE_STDPROD(sc, sc->ti_std);
TI_UPDATE_MINIPROD(sc, sc->ti_mini);
TI_UPDATE_JUMBOPROD(sc, sc->ti_jumbo);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_txeof(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
struct ti_txdesc *txd;
struct ti_tx_desc txdesc;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_tx_desc *cur_tx = NULL;
struct ifnet *ifp;
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
int idx;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
ifp = sc->ti_ifp;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
txd = STAILQ_FIRST(&sc->ti_cdata.ti_txbusyq);
if (txd == NULL)
return;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* Go through our tx ring and free mbufs for those
* frames that have been sent.
*/
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
for (idx = sc->ti_tx_saved_considx; idx != sc->ti_tx_considx.ti_idx;
TI_INC(idx, TI_TX_RING_CNT)) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (sc->ti_hwrev == TI_HWREV_TIGON) {
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
ti_mem_read(sc, TI_TX_RING_BASE + idx * sizeof(txdesc),
sizeof(txdesc), &txdesc);
cur_tx = &txdesc;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
} else
cur_tx = &sc->ti_rdata->ti_tx_ring[idx];
Add a transmit descriptor usage counter and use it to absolutely, positively not let ti_encap() fill up the TX ring all the way and wrap around. This fixes a potential transmit lockup where a really fast machine (or particular TX traffic pattern) can overrun the end of the ring. Reported by: John Plevyak <jplevyak@inktomi.com>
1999-06-19 00:36:56 +00:00
sc->ti_txcnt--;
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
if ((cur_tx->ti_flags & TI_BDFLAG_END) == 0)
continue;
bus_dmamap_sync(sc->ti_mbuftx_dmat, txd->tx_dmamap,
BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(sc->ti_mbuftx_dmat, txd->tx_dmamap);
ifp->if_opackets++;
m_freem(txd->tx_m);
txd->tx_m = NULL;
STAILQ_REMOVE_HEAD(&sc->ti_cdata.ti_txbusyq, tx_q);
STAILQ_INSERT_TAIL(&sc->ti_cdata.ti_txfreeq, txd, tx_q);
txd = STAILQ_FIRST(&sc->ti_cdata.ti_txbusyq);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
sc->ti_tx_saved_considx = idx;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
ifp->if_timer = sc->ti_txcnt > 0 ? 5 : 0;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_intr(xsc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
void *xsc;
{
struct ti_softc *sc;
struct ifnet *ifp;
sc = xsc;
First round of converting network drivers from spls to mutexes. This takes care of all the 10/100 and gigE PCI drivers that I've done. Next will be the wireless drivers, then the USB ones. I may pick up some stragglers along the way. I'm sort of playing this by ear: if anyone spots any places where I've screwed up horribly, please let me know.
2000-10-13 17:54:19 +00:00
TI_LOCK(sc);
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
ifp = sc->ti_ifp;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
/*#ifdef notdef*/
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Avoid this for now -- checking this register is expensive. */
/* Make sure this is really our interrupt. */
First round of converting network drivers from spls to mutexes. This takes care of all the 10/100 and gigE PCI drivers that I've done. Next will be the wireless drivers, then the USB ones. I may pick up some stragglers along the way. I'm sort of playing this by ear: if anyone spots any places where I've screwed up horribly, please let me know.
2000-10-13 17:54:19 +00:00
if (!(CSR_READ_4(sc, TI_MISC_HOST_CTL) & TI_MHC_INTSTATE)) {
TI_UNLOCK(sc);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
return;
First round of converting network drivers from spls to mutexes. This takes care of all the 10/100 and gigE PCI drivers that I've done. Next will be the wireless drivers, then the USB ones. I may pick up some stragglers along the way. I'm sort of playing this by ear: if anyone spots any places where I've screwed up horribly, please let me know.
2000-10-13 17:54:19 +00:00
}
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
/*#endif*/
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Ack interrupt and stop others from occuring. */
CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1);
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Check RX return ring producer/consumer */
ti_rxeof(sc);
/* Check TX ring producer/consumer */
ti_txeof(sc);
}
ti_handle_events(sc);
/* Re-enable interrupts. */
CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0);
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
ifp->if_snd.ifq_head != NULL)
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
ti_start_locked(ifp);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
First round of converting network drivers from spls to mutexes. This takes care of all the 10/100 and gigE PCI drivers that I've done. Next will be the wireless drivers, then the USB ones. I may pick up some stragglers along the way. I'm sort of playing this by ear: if anyone spots any places where I've screwed up horribly, please let me know.
2000-10-13 17:54:19 +00:00
TI_UNLOCK(sc);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_stats_update(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
struct ifnet *ifp;
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
ifp = sc->ti_ifp;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
bus_dmamap_sync(sc->ti_rdata_dmat, sc->ti_rdata_dmamap,
BUS_DMASYNC_POSTREAD);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
ifp->if_collisions +=
(sc->ti_rdata->ti_info.ti_stats.dot3StatsSingleCollisionFrames +
sc->ti_rdata->ti_info.ti_stats.dot3StatsMultipleCollisionFrames +
sc->ti_rdata->ti_info.ti_stats.dot3StatsExcessiveCollisions +
sc->ti_rdata->ti_info.ti_stats.dot3StatsLateCollisions) -
ifp->if_collisions;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
bus_dmamap_sync(sc->ti_rdata_dmat, sc->ti_rdata_dmamap,
BUS_DMASYNC_PREREAD);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
/*
* Encapsulate an mbuf chain in the tx ring by coupling the mbuf data
* pointers to descriptors.
*/
static int
ti_encap(sc, m_head)
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
struct ti_softc *sc;
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
struct mbuf **m_head;
{
struct ti_txdesc *txd;
struct ti_tx_desc *f;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
struct ti_tx_desc txdesc;
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
struct mbuf *m, *n;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
struct m_tag *mtag;
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
bus_dma_segment_t txsegs[TI_MAXTXSEGS];
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
u_int16_t csum_flags;
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
int error, frag, i, nseg;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
if ((txd = STAILQ_FIRST(&sc->ti_cdata.ti_txfreeq)) == NULL)
return (ENOBUFS);
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
m = *m_head;
csum_flags = 0;
if (m->m_pkthdr.csum_flags) {
if (m->m_pkthdr.csum_flags & CSUM_IP)
csum_flags |= TI_BDFLAG_IP_CKSUM;
if (m->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP))
csum_flags |= TI_BDFLAG_TCP_UDP_CKSUM;
if (m->m_flags & M_LASTFRAG)
csum_flags |= TI_BDFLAG_IP_FRAG_END;
else if (m->m_flags & M_FRAG)
csum_flags |= TI_BDFLAG_IP_FRAG;
}
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
error = bus_dmamap_load_mbuf_sg(sc->ti_mbuftx_dmat, txd->tx_dmamap,
m, txsegs, &nseg, 0);
if (error == EFBIG) {
n = m_defrag(m, M_DONTWAIT);
if (n == NULL) {
m_freem(m);
m = NULL;
return (ENOMEM);
}
m = n;
error = bus_dmamap_load_mbuf_sg(sc->ti_mbuftx_dmat,
txd->tx_dmamap, m, txsegs, &nseg, 0);
if (error) {
m_freem(m);
m = NULL;
return (error);
}
} else if (error != 0)
return (error);
if (nseg == 0) {
m_freem(m);
m = NULL;
return (EIO);
Fix a serious regression from the busdma conversion. Check to make sure that we don't overrun the tx descriptor ring before actually trying to overrun it.
2005-12-28 08:14:35 +00:00
}
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
if (sc->ti_txcnt + nseg >= TI_TX_RING_CNT) {
bus_dmamap_unload(sc->ti_mbuftx_dmat, txd->tx_dmamap);
return (ENOBUFS);
}
bus_dmamap_sync(sc->ti_mbuftx_dmat, txd->tx_dmamap,
BUS_DMASYNC_PREWRITE);
bus_dmamap_sync(sc->ti_rdata_dmat, sc->ti_rdata_dmamap,
BUS_DMASYNC_PREWRITE);
mtag = VLAN_OUTPUT_TAG(sc->ti_ifp, m);
frag = sc->ti_tx_saved_prodidx;
for (i = 0; i < nseg; i++) {
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
if (sc->ti_hwrev == TI_HWREV_TIGON) {
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
bzero(&txdesc, sizeof(txdesc));
f = &txdesc;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
} else
f = &sc->ti_rdata->ti_tx_ring[frag];
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
ti_hostaddr64(&f->ti_addr, txsegs[i].ds_addr);
f->ti_len = txsegs[i].ds_len;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
f->ti_flags = csum_flags;
if (mtag != NULL) {
f->ti_flags |= TI_BDFLAG_VLAN_TAG;
f->ti_vlan_tag = VLAN_TAG_VALUE(mtag) & 0xfff;
} else {
f->ti_vlan_tag = 0;
}
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
if (sc->ti_hwrev == TI_HWREV_TIGON)
ti_mem_write(sc, TI_TX_RING_BASE + frag *
sizeof(txdesc), sizeof(txdesc), &txdesc);
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
TI_INC(frag, TI_TX_RING_CNT);
}
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
sc->ti_tx_saved_prodidx = frag;
/* set TI_BDFLAG_END on the last descriptor */
frag = (frag + TI_TX_RING_CNT - 1) % TI_TX_RING_CNT;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
if (sc->ti_hwrev == TI_HWREV_TIGON) {
txdesc.ti_flags |= TI_BDFLAG_END;
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
ti_mem_write(sc, TI_TX_RING_BASE + frag * sizeof(txdesc),
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
sizeof(txdesc), &txdesc);
} else
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
sc->ti_rdata->ti_tx_ring[frag].ti_flags |= TI_BDFLAG_END;
Fix the Tigon I/II driver to support 64-bit DMA. In the process, convert it to use busdma. Unlike most of the other drivers, but similar to the if_em driver, pre-allocate the dmamaps at init time instead of allocating them on the fly when descriptors need to be filled. This isn't ideal right now because a map is allocated for every descriptor slot in the tx, rx, mini, and jumbo rings (which is a lot!) in order to simplify the bookkeeping, even though the driver might support filling only a subset of those slots. Luckily, maps are typically NULL on i386 and amd64, so the cost isn't very high. It could be an issue with sparc64, but the driver isn't endian clean either, and that is a much bigger problem to solve first. Note that jumbo frame support is under-tested, and I'm not even sure if it till really works correctly given the evil VM magic that is does. The changes here attempt to preserve the existing semanitcs. Thanks to Martin Nillson for contributing the Netgear card for this work. MFC-After: 3 weeks
2005-12-14 00:03:41 +00:00
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
STAILQ_REMOVE_HEAD(&sc->ti_cdata.ti_txfreeq, tx_q);
STAILQ_INSERT_TAIL(&sc->ti_cdata.ti_txbusyq, txd, tx_q);
txd->tx_m = m;
sc->ti_txcnt += nseg;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
static void
ti_start(ifp)
struct ifnet *ifp;
{
struct ti_softc *sc;
sc = ifp->if_softc;
TI_LOCK(sc);
ti_start_locked(ifp);
TI_UNLOCK(sc);
}
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* Main transmit routine. To avoid having to do mbuf copies, we put pointers
* to the mbuf data regions directly in the transmit descriptors.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
ti_start_locked(ifp)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ifnet *ifp;
{
struct ti_softc *sc;
struct mbuf *m_head = NULL;
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
int enq = 0;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
sc = ifp->if_softc;
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
for (; ifp->if_snd.ifq_head != NULL &&
sc->ti_txcnt < (TI_TX_RING_CNT - 16);) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
IF_DEQUEUE(&ifp->if_snd, m_head);
if (m_head == NULL)
break;
Add support for offloading IP/TCP/UDP checksums to NIC hardware which supports them.
2000-03-27 19:14:27 +00:00
/*
* XXX
* safety overkill. If this is a fragmented packet chain
* with delayed TCP/UDP checksums, then only encapsulate
* it if we have enough descriptors to handle the entire
* chain at once.
* (paranoia -- may not actually be needed)
*/
if (m_head->m_flags & M_FIRSTFRAG &&
m_head->m_pkthdr.csum_flags & (CSUM_DELAY_DATA)) {
if ((TI_TX_RING_CNT - sc->ti_txcnt) <
m_head->m_pkthdr.csum_data + 16) {
IF_PREPEND(&ifp->if_snd, m_head);
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
Add support for offloading IP/TCP/UDP checksums to NIC hardware which supports them.
2000-03-27 19:14:27 +00:00
break;
}
}
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* Pack the data into the transmit ring. If we
* don't have room, set the OACTIVE flag and wait
* for the NIC to drain the ring.
*/
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
if (ti_encap(sc, &m_head)) {
if (m_head == NULL)
break;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
IF_PREPEND(&ifp->if_snd, m_head);
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
break;
}
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
enq++;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* If there's a BPF listener, bounce a copy of this frame
* to him.
*/
o track either_ifattach/ether_ifdetach API changes o use if_input for input packet processing o don't strip the Ethernet header for input packets o use BPF_* macros bpf tapping o call ether_ioctl to handle default ioctl case o track vlan changes Reviewed by: many Approved by: re
2002-11-14 23:49:09 +00:00
BPF_MTAP(ifp, m_head);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
if (enq > 0) {
/* Transmit */
CSR_WRITE_4(sc, TI_MB_SENDPROD_IDX, sc->ti_tx_saved_prodidx);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
- Tx side bus_dmamap_load_mbuf_sg(9) support. This reduces bookkeeping requiried to keep consistent softc state before/after callback function invocation and supposed to be sligntly faster than previous one as it wouldn't incur callback overhead. With this change callback function was gone. - Decrease TI_MAXTXSEGS to 32 from 128. It seems that most mbuf chain length is less than 32 and it would be re-packed with m_defrag(9) if its chain length is larger than TI_MAXTXSEGS. This would protect ti(4) against possible kernel stack overflow when txsegs[] is put on stack. Alternatively, we can embed the txsegs[] into softc. However, that would waste memory and make Tx/Rx speration hard when we want to sperate Tx/Rx handlers to optimize locking. - Fix dma map tracking used in Tx path. Previously it used the dma map of the last mbuf chain in ti_txeof() which was incorrect as ti(4) used dma map of the first mbuf chain when it loads a mbuf chain with bus_dmamap_load_mbuf(9). Correct the bug by introducing queues that keep track of active/inactive dma maps/mbuf chain. - Use ti_txcnt to check whether driver need to set watchdog timer instead of blidnly clearing the timer in ti_txeof(). - Remove the 3rd arg. of ti_encap(). Since ti(4) now caches the last descriptor index(ti_tx_saved_prodidx) used in Tx there is no need to pass it as a fuction arg. - Change data type of producer/consumer index to int from u_int16_t in order to remove implicit type conversions in Tx/Rx handlers. - Check interface queue before getting a mbuf chain to reduce locking overhead. - Check number of available Tx descriptores to be 16 or higher in ti_start(). This wouldn't protect Tx descriptor shortage but it would reduce number of bus_dmamap_unload(9) calls in ti_encap() when we are about to running out of Tx descriptors. - Command NIC to send packets ony when the driver really has packets enqueued. Previously it always set TI_MB_SENDPROD_IDX which would command NIC to DMA Tx descriptors into NIC local memory regardless of Tx descriptor changes. Reviewed by: scottl
2006-01-03 06:14:07 +00:00
/*
* Set a timeout in case the chip goes out to lunch.
*/
ifp->if_timer = 5;
}
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_init(xsc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
void *xsc;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
{
struct ti_softc *sc;
sc = xsc;
TI_LOCK(sc);
ti_init_locked(sc);
TI_UNLOCK(sc);
}
static void
ti_init_locked(xsc)
void *xsc;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
{
struct ti_softc *sc = xsc;
/* Cancel pending I/O and flush buffers. */
ti_stop(sc);
/* Init the gen info block, ring control blocks and firmware. */
if (ti_gibinit(sc)) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "initialization failure\n");
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
return;
}
}
static void ti_init2(sc)
struct ti_softc *sc;
{
struct ti_cmd_desc cmd;
struct ifnet *ifp;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
u_int8_t *ea;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ifmedia *ifm;
int tmp;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
TI_LOCK_ASSERT(sc);
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
ifp = sc->ti_ifp;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Specify MTU and interface index. */
Replace the if_name and if_unit members of struct ifnet with new members if_xname, if_dname, and if_dunit. if_xname is the name of the interface and if_dname/unit are the driver name and instance. This change paves the way for interface renaming and enhanced pseudo device creation and configuration symantics. Approved By: re (in principle) Reviewed By: njl, imp Tested On: i386, amd64, sparc64 Obtained From: NetBSD (if_xname)
2003-10-31 18:32:15 +00:00
CSR_WRITE_4(sc, TI_GCR_IFINDEX, sc->ti_unit);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
CSR_WRITE_4(sc, TI_GCR_IFMTU, ifp->if_mtu +
Enable IFCAP_VLAN_MTU and increase MTU for it. Reviewed by: wpaul
2003-08-05 02:34:35 +00:00
ETHER_HDR_LEN + ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
TI_DO_CMD(TI_CMD_UPDATE_GENCOM, 0, 0);
/* Load our MAC address. */
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
ea = IF_LLADDR(sc->ti_ifp);
CSR_WRITE_4(sc, TI_GCR_PAR0, (ea[0] << 8) | ea[1]);
CSR_WRITE_4(sc, TI_GCR_PAR1,
(ea[2] << 24) | (ea[3] << 16) | (ea[4] << 8) | ea[5]);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
TI_DO_CMD(TI_CMD_SET_MAC_ADDR, 0, 0);
/* Enable or disable promiscuous mode as needed. */
if (ifp->if_flags & IFF_PROMISC) {
TI_DO_CMD(TI_CMD_SET_PROMISC_MODE, TI_CMD_CODE_PROMISC_ENB, 0);
} else {
TI_DO_CMD(TI_CMD_SET_PROMISC_MODE, TI_CMD_CODE_PROMISC_DIS, 0);
}
/* Program multicast filter. */
ti_setmulti(sc);
/*
* If this is a Tigon 1, we should tell the
* firmware to use software packet filtering.
*/
if (sc->ti_hwrev == TI_HWREV_TIGON) {
TI_DO_CMD(TI_CMD_FDR_FILTERING, TI_CMD_CODE_FILT_ENB, 0);
}
/* Init RX ring. */
ti_init_rx_ring_std(sc);
/* Init jumbo RX ring. */
if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN))
ti_init_rx_ring_jumbo(sc);
/*
* If this is a Tigon 2, we can also configure the
* mini ring.
*/
if (sc->ti_hwrev == TI_HWREV_TIGON_II)
ti_init_rx_ring_mini(sc);
CSR_WRITE_4(sc, TI_GCR_RXRETURNCONS_IDX, 0);
sc->ti_rx_saved_considx = 0;
/* Init TX ring. */
ti_init_tx_ring(sc);
/* Tell firmware we're alive. */
TI_DO_CMD(TI_CMD_HOST_STATE, TI_CMD_CODE_STACK_UP, 0);
/* Enable host interrupts. */
CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0);
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
ifp->if_drv_flags |= IFF_DRV_RUNNING;
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/*
* Make sure to set media properly. We have to do this
* here since we have to issue commands in order to set
* the link negotiation and we can't issue commands until
* the firmware is running.
*/
ifm = &sc->ifmedia;
tmp = ifm->ifm_media;
ifm->ifm_media = ifm->ifm_cur->ifm_media;
ti_ifmedia_upd(ifp);
ifm->ifm_media = tmp;
}
/*
* Set media options.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static int
ti_ifmedia_upd(ifp)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ifnet *ifp;
{
struct ti_softc *sc;
struct ifmedia *ifm;
struct ti_cmd_desc cmd;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
u_int32_t flowctl;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
sc = ifp->if_softc;
ifm = &sc->ifmedia;
if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (EINVAL);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
flowctl = 0;
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
switch (IFM_SUBTYPE(ifm->ifm_media)) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
case IFM_AUTO:
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
/*
* Transmit flow control doesn't work on the Tigon 1.
*/
flowctl = TI_GLNK_RX_FLOWCTL_Y;
/*
* Transmit flow control can also cause problems on the
* Tigon 2, apparantly with both the copper and fiber
* boards. The symptom is that the interface will just
* hang. This was reproduced with Alteon 180 switches.
*/
#if 0
if (sc->ti_hwrev != TI_HWREV_TIGON)
Whitespace nits
2004-07-05 22:35:18 +00:00
flowctl |= TI_GLNK_TX_FLOWCTL_Y;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#endif
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
CSR_WRITE_4(sc, TI_GCR_GLINK, TI_GLNK_PREF|TI_GLNK_1000MB|
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
TI_GLNK_FULL_DUPLEX| flowctl |
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
TI_GLNK_AUTONEGENB|TI_GLNK_ENB);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
flowctl = TI_LNK_RX_FLOWCTL_Y;
#if 0
if (sc->ti_hwrev != TI_HWREV_TIGON)
flowctl |= TI_LNK_TX_FLOWCTL_Y;
#endif
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
CSR_WRITE_4(sc, TI_GCR_LINK, TI_LNK_100MB|TI_LNK_10MB|
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
TI_LNK_FULL_DUPLEX|TI_LNK_HALF_DUPLEX| flowctl |
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
TI_LNK_AUTONEGENB|TI_LNK_ENB);
TI_DO_CMD(TI_CMD_LINK_NEGOTIATION,
TI_CMD_CODE_NEGOTIATE_BOTH, 0);
break;
case IFM_1000_SX:
Follow NetBSD and s/IFM_1000_TX/IFM_1000_T/
2002-04-28 20:34:20 +00:00
case IFM_1000_T:
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
flowctl = TI_GLNK_RX_FLOWCTL_Y;
#if 0
if (sc->ti_hwrev != TI_HWREV_TIGON)
Whitespace nits
2004-07-05 22:35:18 +00:00
flowctl |= TI_GLNK_TX_FLOWCTL_Y;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
#endif
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
CSR_WRITE_4(sc, TI_GCR_GLINK, TI_GLNK_PREF|TI_GLNK_1000MB|
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
flowctl |TI_GLNK_ENB);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
CSR_WRITE_4(sc, TI_GCR_LINK, 0);
Update the Tigon driver to support 1000baseTX gigE over copper AceNIC cards. This basically involves switching to the 12.4.13 firmware, plus a couple of minor tweaks to the driver. Also changed the jumbo buffer allocation scheme just a little to avoid 'failed to allocate jumbo buffer' conditions in certain cases.
2000-07-20 22:24:43 +00:00
if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) {
TI_SETBIT(sc, TI_GCR_GLINK, TI_GLNK_FULL_DUPLEX);
}
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
TI_DO_CMD(TI_CMD_LINK_NEGOTIATION,
TI_CMD_CODE_NEGOTIATE_GIGABIT, 0);
break;
case IFM_100_FX:
case IFM_10_FL:
Update the Tigon driver to support 1000baseTX gigE over copper AceNIC cards. This basically involves switching to the 12.4.13 firmware, plus a couple of minor tweaks to the driver. Also changed the jumbo buffer allocation scheme just a little to avoid 'failed to allocate jumbo buffer' conditions in certain cases.
2000-07-20 22:24:43 +00:00
case IFM_100_TX:
case IFM_10_T:
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
flowctl = TI_LNK_RX_FLOWCTL_Y;
#if 0
if (sc->ti_hwrev != TI_HWREV_TIGON)
flowctl |= TI_LNK_TX_FLOWCTL_Y;
#endif
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
CSR_WRITE_4(sc, TI_GCR_GLINK, 0);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
CSR_WRITE_4(sc, TI_GCR_LINK, TI_LNK_ENB|TI_LNK_PREF|flowctl);
Update the Tigon driver to support 1000baseTX gigE over copper AceNIC cards. This basically involves switching to the 12.4.13 firmware, plus a couple of minor tweaks to the driver. Also changed the jumbo buffer allocation scheme just a little to avoid 'failed to allocate jumbo buffer' conditions in certain cases.
2000-07-20 22:24:43 +00:00
if (IFM_SUBTYPE(ifm->ifm_media) == IFM_100_FX ||
IFM_SUBTYPE(ifm->ifm_media) == IFM_100_TX) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_100MB);
} else {
TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_10MB);
}
if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) {
TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_FULL_DUPLEX);
} else {
TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_HALF_DUPLEX);
}
TI_DO_CMD(TI_CMD_LINK_NEGOTIATION,
TI_CMD_CODE_NEGOTIATE_10_100, 0);
break;
}
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/*
* Report current media status.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_ifmedia_sts(ifp, ifmr)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ifnet *ifp;
struct ifmediareq *ifmr;
{
struct ti_softc *sc;
Update the Tigon driver to support 1000baseTX gigE over copper AceNIC cards. This basically involves switching to the 12.4.13 firmware, plus a couple of minor tweaks to the driver. Also changed the jumbo buffer allocation scheme just a little to avoid 'failed to allocate jumbo buffer' conditions in certain cases.
2000-07-20 22:24:43 +00:00
u_int32_t media = 0;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
sc = ifp->if_softc;
ifmr->ifm_status = IFM_AVALID;
ifmr->ifm_active = IFM_ETHER;
if (sc->ti_linkstat == TI_EV_CODE_LINK_DOWN)
return;
ifmr->ifm_status |= IFM_ACTIVE;
Update the Tigon driver to support 1000baseTX gigE over copper AceNIC cards. This basically involves switching to the 12.4.13 firmware, plus a couple of minor tweaks to the driver. Also changed the jumbo buffer allocation scheme just a little to avoid 'failed to allocate jumbo buffer' conditions in certain cases.
2000-07-20 22:24:43 +00:00
if (sc->ti_linkstat == TI_EV_CODE_GIG_LINK_UP) {
media = CSR_READ_4(sc, TI_GCR_GLINK_STAT);
if (sc->ti_copper)
Follow NetBSD and s/IFM_1000_TX/IFM_1000_T/
2002-04-28 20:34:20 +00:00
ifmr->ifm_active |= IFM_1000_T;
Update the Tigon driver to support 1000baseTX gigE over copper AceNIC cards. This basically involves switching to the 12.4.13 firmware, plus a couple of minor tweaks to the driver. Also changed the jumbo buffer allocation scheme just a little to avoid 'failed to allocate jumbo buffer' conditions in certain cases.
2000-07-20 22:24:43 +00:00
else
ifmr->ifm_active |= IFM_1000_SX;
if (media & TI_GLNK_FULL_DUPLEX)
ifmr->ifm_active |= IFM_FDX;
else
ifmr->ifm_active |= IFM_HDX;
} else if (sc->ti_linkstat == TI_EV_CODE_LINK_UP) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
media = CSR_READ_4(sc, TI_GCR_LINK_STAT);
Update the Tigon driver to support 1000baseTX gigE over copper AceNIC cards. This basically involves switching to the 12.4.13 firmware, plus a couple of minor tweaks to the driver. Also changed the jumbo buffer allocation scheme just a little to avoid 'failed to allocate jumbo buffer' conditions in certain cases.
2000-07-20 22:24:43 +00:00
if (sc->ti_copper) {
if (media & TI_LNK_100MB)
ifmr->ifm_active |= IFM_100_TX;
if (media & TI_LNK_10MB)
ifmr->ifm_active |= IFM_10_T;
} else {
if (media & TI_LNK_100MB)
ifmr->ifm_active |= IFM_100_FX;
if (media & TI_LNK_10MB)
ifmr->ifm_active |= IFM_10_FL;
}
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (media & TI_LNK_FULL_DUPLEX)
ifmr->ifm_active |= IFM_FDX;
if (media & TI_LNK_HALF_DUPLEX)
ifmr->ifm_active |= IFM_HDX;
}
}
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static int
ti_ioctl(ifp, command, data)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ifnet *ifp;
u_long command;
caddr_t data;
{
struct ti_softc *sc = ifp->if_softc;
struct ifreq *ifr = (struct ifreq *) data;
Have the driver advertise that it is capable of hardware checksums, and allow the user to control the setting. (checksums are enabled by default)
2001-09-18 18:40:22 +00:00
int mask, error = 0;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_cmd_desc cmd;
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
switch (command) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
case SIOCSIFMTU:
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
TI_LOCK(sc);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (ifr->ifr_mtu > TI_JUMBO_MTU)
error = EINVAL;
else {
ifp->if_mtu = ifr->ifr_mtu;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
ti_init_locked(sc);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
TI_UNLOCK(sc);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
break;
case SIOCSIFFLAGS:
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
TI_LOCK(sc);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
if (ifp->if_flags & IFF_UP) {
/*
* If only the state of the PROMISC flag changed,
* then just use the 'set promisc mode' command
* instead of reinitializing the entire NIC. Doing
* a full re-init means reloading the firmware and
* waiting for it to start up, which may take a
* second or two.
*/
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
ifp->if_flags & IFF_PROMISC &&
!(sc->ti_if_flags & IFF_PROMISC)) {
TI_DO_CMD(TI_CMD_SET_PROMISC_MODE,
TI_CMD_CODE_PROMISC_ENB, 0);
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
} else if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
!(ifp->if_flags & IFF_PROMISC) &&
sc->ti_if_flags & IFF_PROMISC) {
TI_DO_CMD(TI_CMD_SET_PROMISC_MODE,
TI_CMD_CODE_PROMISC_DIS, 0);
} else
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
ti_init_locked(sc);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
} else {
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
ti_stop(sc);
}
}
sc->ti_if_flags = ifp->if_flags;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
TI_UNLOCK(sc);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
break;
case SIOCADDMULTI:
case SIOCDELMULTI:
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
TI_LOCK(sc);
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
ti_setmulti(sc);
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
TI_UNLOCK(sc);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
break;
case SIOCSIFMEDIA:
case SIOCGIFMEDIA:
error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, command);
break;
Have the driver advertise that it is capable of hardware checksums, and allow the user to control the setting. (checksums are enabled by default)
2001-09-18 18:40:22 +00:00
case SIOCSIFCAP:
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
TI_LOCK(sc);
Have the driver advertise that it is capable of hardware checksums, and allow the user to control the setting. (checksums are enabled by default)
2001-09-18 18:40:22 +00:00
mask = ifr->ifr_reqcap ^ ifp->if_capenable;
if (mask & IFCAP_HWCSUM) {
if (IFCAP_HWCSUM & ifp->if_capenable)
ifp->if_capenable &= ~IFCAP_HWCSUM;
Whitespace pass.
2004-07-05 22:46:28 +00:00
else
ifp->if_capenable |= IFCAP_HWCSUM;
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
ti_init_locked(sc);
Whitespace pass.
2004-07-05 22:46:28 +00:00
}
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
TI_UNLOCK(sc);
Have the driver advertise that it is capable of hardware checksums, and allow the user to control the setting. (checksums are enabled by default)
2001-09-18 18:40:22 +00:00
break;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
default:
o track either_ifattach/ether_ifdetach API changes o use if_input for input packet processing o don't strip the Ethernet header for input packets o use BPF_* macros bpf tapping o call ether_ioctl to handle default ioctl case o track vlan changes Reviewed by: many Approved by: re
2002-11-14 23:49:09 +00:00
error = ether_ioctl(ifp, command, data);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
break;
}
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (error);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
static int
Do the dreaded s/dev_t/struct cdev */ Bump __FreeBSD_version accordingly.
2004-06-16 09:47:26 +00:00
ti_open(struct cdev *dev, int flags, int fmt, struct thread *td)
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
{
struct ti_softc *sc;
Sanitize the code relating to the /dev/ti%d entries. In particular evict the evil vnode sniffing code and use destroy_dev() instead.
2003-10-10 20:35:28 +00:00
sc = dev->si_drv1;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
if (sc == NULL)
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (ENODEV);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
TI_LOCK(sc);
sc->ti_flags |= TI_FLAG_DEBUGING;
TI_UNLOCK(sc);
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
}
static int
Do the dreaded s/dev_t/struct cdev */ Bump __FreeBSD_version accordingly.
2004-06-16 09:47:26 +00:00
ti_close(struct cdev *dev, int flag, int fmt, struct thread *td)
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
{
struct ti_softc *sc;
Sanitize the code relating to the /dev/ti%d entries. In particular evict the evil vnode sniffing code and use destroy_dev() instead.
2003-10-10 20:35:28 +00:00
sc = dev->si_drv1;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
if (sc == NULL)
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (ENODEV);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
TI_LOCK(sc);
sc->ti_flags &= ~TI_FLAG_DEBUGING;
TI_UNLOCK(sc);
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (0);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
}
/*
* This ioctl routine goes along with the Tigon character device.
*/
Whitespace nits
2004-07-05 22:35:18 +00:00
static int
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
ti_ioctl2(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
struct thread *td)
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
{
Sanitize the code relating to the /dev/ti%d entries. In particular evict the evil vnode sniffing code and use destroy_dev() instead.
2003-10-10 20:35:28 +00:00
int error;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
struct ti_softc *sc;
Sanitize the code relating to the /dev/ti%d entries. In particular evict the evil vnode sniffing code and use destroy_dev() instead.
2003-10-10 20:35:28 +00:00
sc = dev->si_drv1;
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
if (sc == NULL)
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (ENODEV);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
error = 0;
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
switch (cmd) {
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
case TIIOCGETSTATS:
{
struct ti_stats *outstats;
outstats = (struct ti_stats *)addr;
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_LOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
bcopy(&sc->ti_rdata->ti_info.ti_stats, outstats,
sizeof(struct ti_stats));
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_UNLOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
break;
}
case TIIOCGETPARAMS:
{
struct ti_params *params;
params = (struct ti_params *)addr;
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_LOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
params->ti_stat_ticks = sc->ti_stat_ticks;
params->ti_rx_coal_ticks = sc->ti_rx_coal_ticks;
params->ti_tx_coal_ticks = sc->ti_tx_coal_ticks;
params->ti_rx_max_coal_bds = sc->ti_rx_max_coal_bds;
params->ti_tx_max_coal_bds = sc->ti_tx_max_coal_bds;
params->ti_tx_buf_ratio = sc->ti_tx_buf_ratio;
params->param_mask = TI_PARAM_ALL;
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_UNLOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
error = 0;
break;
}
case TIIOCSETPARAMS:
{
struct ti_params *params;
params = (struct ti_params *)addr;
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_LOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
if (params->param_mask & TI_PARAM_STAT_TICKS) {
sc->ti_stat_ticks = params->ti_stat_ticks;
CSR_WRITE_4(sc, TI_GCR_STAT_TICKS, sc->ti_stat_ticks);
}
if (params->param_mask & TI_PARAM_RX_COAL_TICKS) {
sc->ti_rx_coal_ticks = params->ti_rx_coal_ticks;
CSR_WRITE_4(sc, TI_GCR_RX_COAL_TICKS,
sc->ti_rx_coal_ticks);
}
if (params->param_mask & TI_PARAM_TX_COAL_TICKS) {
sc->ti_tx_coal_ticks = params->ti_tx_coal_ticks;
CSR_WRITE_4(sc, TI_GCR_TX_COAL_TICKS,
sc->ti_tx_coal_ticks);
}
if (params->param_mask & TI_PARAM_RX_COAL_BDS) {
sc->ti_rx_max_coal_bds = params->ti_rx_max_coal_bds;
CSR_WRITE_4(sc, TI_GCR_RX_MAX_COAL_BD,
sc->ti_rx_max_coal_bds);
}
if (params->param_mask & TI_PARAM_TX_COAL_BDS) {
sc->ti_tx_max_coal_bds = params->ti_tx_max_coal_bds;
CSR_WRITE_4(sc, TI_GCR_TX_MAX_COAL_BD,
sc->ti_tx_max_coal_bds);
}
if (params->param_mask & TI_PARAM_TX_BUF_RATIO) {
sc->ti_tx_buf_ratio = params->ti_tx_buf_ratio;
CSR_WRITE_4(sc, TI_GCR_TX_BUFFER_RATIO,
sc->ti_tx_buf_ratio);
}
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_UNLOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
error = 0;
break;
}
case TIIOCSETTRACE: {
ti_trace_type trace_type;
trace_type = *(ti_trace_type *)addr;
/*
* Set tracing to whatever the user asked for. Setting
* this register to 0 should have the effect of disabling
* tracing.
*/
CSR_WRITE_4(sc, TI_GCR_NIC_TRACING, trace_type);
error = 0;
break;
}
case TIIOCGETTRACE: {
struct ti_trace_buf *trace_buf;
u_int32_t trace_start, cur_trace_ptr, trace_len;
trace_buf = (struct ti_trace_buf *)addr;
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_LOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
trace_start = CSR_READ_4(sc, TI_GCR_NICTRACE_START);
cur_trace_ptr = CSR_READ_4(sc, TI_GCR_NICTRACE_PTR);
trace_len = CSR_READ_4(sc, TI_GCR_NICTRACE_LEN);
#if 0
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "trace_start = %#x, cur_trace_ptr = %#x, "
"trace_len = %d\n", trace_start,
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
cur_trace_ptr, trace_len);
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "trace_buf->buf_len = %d\n",
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
trace_buf->buf_len);
#endif
error = ti_copy_mem(sc, trace_start, min(trace_len,
trace_buf->buf_len),
(caddr_t)trace_buf->buf, 1, 1);
if (error == 0) {
trace_buf->fill_len = min(trace_len,
trace_buf->buf_len);
if (cur_trace_ptr < trace_start)
trace_buf->cur_trace_ptr =
trace_start - cur_trace_ptr;
else
trace_buf->cur_trace_ptr =
cur_trace_ptr - trace_start;
} else
trace_buf->fill_len = 0;
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_UNLOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
break;
}
/*
* For debugging, five ioctls are needed:
* ALT_ATTACH
* ALT_READ_TG_REG
* ALT_WRITE_TG_REG
* ALT_READ_TG_MEM
* ALT_WRITE_TG_MEM
*/
case ALT_ATTACH:
/*
Whitespace nits
2004-07-05 22:35:18 +00:00
* From what I can tell, Alteon's Solaris Tigon driver
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
* only has one character device, so you have to attach
* to the Tigon board you're interested in. This seems
* like a not-so-good way to do things, since unless you
* subsequently specify the unit number of the device
* you're interested in in every ioctl, you'll only be
* able to debug one board at a time.
*/
error = 0;
break;
case ALT_READ_TG_MEM:
case ALT_WRITE_TG_MEM:
{
struct tg_mem *mem_param;
u_int32_t sram_end, scratch_end;
mem_param = (struct tg_mem *)addr;
if (sc->ti_hwrev == TI_HWREV_TIGON) {
sram_end = TI_END_SRAM_I;
scratch_end = TI_END_SCRATCH_I;
} else {
sram_end = TI_END_SRAM_II;
scratch_end = TI_END_SCRATCH_II;
}
/*
* For now, we'll only handle accessing regular SRAM,
* nothing else.
*/
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_LOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
if ((mem_param->tgAddr >= TI_BEG_SRAM)
&& ((mem_param->tgAddr + mem_param->len) <= sram_end)) {
/*
* In this instance, we always copy to/from user
* space, so the user space argument is set to 1.
*/
error = ti_copy_mem(sc, mem_param->tgAddr,
mem_param->len,
mem_param->userAddr, 1,
(cmd == ALT_READ_TG_MEM) ? 1 : 0);
} else if ((mem_param->tgAddr >= TI_BEG_SCRATCH)
&& (mem_param->tgAddr <= scratch_end)) {
error = ti_copy_scratch(sc, mem_param->tgAddr,
mem_param->len,
mem_param->userAddr, 1,
(cmd == ALT_READ_TG_MEM) ?
1 : 0, TI_PROCESSOR_A);
} else if ((mem_param->tgAddr >= TI_BEG_SCRATCH_B_DEBUG)
&& (mem_param->tgAddr <= TI_BEG_SCRATCH_B_DEBUG)) {
if (sc->ti_hwrev == TI_HWREV_TIGON) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp,
"invalid memory range for Tigon I\n");
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
error = EINVAL;
break;
}
Whitespace nits
2004-07-05 22:35:18 +00:00
error = ti_copy_scratch(sc, mem_param->tgAddr -
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
TI_SCRATCH_DEBUG_OFF,
mem_param->len,
mem_param->userAddr, 1,
(cmd == ALT_READ_TG_MEM) ?
1 : 0, TI_PROCESSOR_B);
} else {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "memory address %#x len %d is "
"out of supported range\n",
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
mem_param->tgAddr, mem_param->len);
error = EINVAL;
}
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_UNLOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
break;
}
case ALT_READ_TG_REG:
case ALT_WRITE_TG_REG:
{
struct tg_reg *regs;
u_int32_t tmpval;
regs = (struct tg_reg *)addr;
/*
* Make sure the address in question isn't out of range.
*/
if (regs->addr > TI_REG_MAX) {
error = EINVAL;
break;
}
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_LOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
if (cmd == ALT_READ_TG_REG) {
bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle,
regs->addr, &tmpval, 1);
regs->data = ntohl(tmpval);
#if 0
if ((regs->addr == TI_CPU_STATE)
|| (regs->addr == TI_CPU_CTL_B)) {
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(sc->ti_ifp, "register %#x = %#x\n",
regs->addr, tmpval);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
}
#endif
} else {
tmpval = htonl(regs->data);
bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle,
regs->addr, &tmpval, 1);
}
if_ti has been operating with locks for a while, so remove the GIANT markers. Also fix man potential locking problems in the cdev ioctl handler.
2005-12-10 01:25:46 +00:00
TI_UNLOCK(sc);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
break;
}
default:
error = ENOTTY;
break;
}
style(9): - Space before bracketized non-void function returns. - Space before condition for conditional blocks.
2004-07-05 22:42:07 +00:00
return (error);
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
}
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_watchdog(ifp)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ifnet *ifp;
{
struct ti_softc *sc;
sc = ifp->if_softc;
First round of converting network drivers from spls to mutexes. This takes care of all the 10/100 and gigE PCI drivers that I've done. Next will be the wireless drivers, then the USB ones. I may pick up some stragglers along the way. I'm sort of playing this by ear: if anyone spots any places where I've screwed up horribly, please let me know.
2000-10-13 17:54:19 +00:00
TI_LOCK(sc);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
At long last, commit the zero copy sockets code. MAKEDEV: Add MAKEDEV glue for the ti(4) device nodes. ti.4: Update the ti(4) man page to include information on the TI_JUMBO_HDRSPLIT and TI_PRIVATE_JUMBOS kernel options, and also include information about the new character device interface and the associated ioctls. man9/Makefile: Add jumbo.9 and zero_copy.9 man pages and associated links. jumbo.9: New man page describing the jumbo buffer allocator interface and operation. zero_copy.9: New man page describing the general characteristics of the zero copy send and receive code, and what an application author should do to take advantage of the zero copy functionality. NOTES: Add entries for ZERO_COPY_SOCKETS, TI_PRIVATE_JUMBOS, TI_JUMBO_HDRSPLIT, MSIZE, and MCLSHIFT. conf/files: Add uipc_jumbo.c and uipc_cow.c. conf/options: Add the 5 options mentioned above. kern_subr.c: Receive side zero copy implementation. This takes "disposable" pages attached to an mbuf, gives them to a user process, and then recycles the user's page. This is only active when ZERO_COPY_SOCKETS is turned on and the kern.ipc.zero_copy.receive sysctl variable is set to 1. uipc_cow.c: Send side zero copy functions. Takes a page written by the user and maps it copy on write and assigns it kernel virtual address space. Removes copy on write mapping once the buffer has been freed by the network stack. uipc_jumbo.c: Jumbo disposable page allocator code. This allocates (optionally) disposable pages for network drivers that want to give the user the option of doing zero copy receive. uipc_socket.c: Add kern.ipc.zero_copy.{send,receive} sysctls that are enabled if ZERO_COPY_SOCKETS is turned on. Add zero copy send support to sosend() -- pages get mapped into the kernel instead of getting copied if they meet size and alignment restrictions. uipc_syscalls.c:Un-staticize some of the sf* functions so that they can be used elsewhere. (uipc_cow.c) if_media.c: In the SIOCGIFMEDIA ioctl in ifmedia_ioctl(), avoid calling malloc() with M_WAITOK. Return an error if the M_NOWAIT malloc fails. The ti(4) driver and the wi(4) driver, at least, call this with a mutex held. This causes witness warnings for 'ifconfig -a' with a wi(4) or ti(4) board in the system. (I've only verified for ti(4)). ip_output.c: Fragment large datagrams so that each segment contains a multiple of PAGE_SIZE amount of data plus headers. This allows the receiver to potentially do page flipping on receives. if_ti.c: Add zero copy receive support to the ti(4) driver. If TI_PRIVATE_JUMBOS is not defined, it now uses the jumbo(9) buffer allocator for jumbo receive buffers. Add a new character device interface for the ti(4) driver for the new debugging interface. This allows (a patched version of) gdb to talk to the Tigon board and debug the firmware. There are also a few additional debugging ioctls available through this interface. Add header splitting support to the ti(4) driver. Tweak some of the default interrupt coalescing parameters to more useful defaults. Add hooks for supporting transmit flow control, but leave it turned off with a comment describing why it is turned off. if_tireg.h: Change the firmware rev to 12.4.11, since we're really at 12.4.11 plus fixes from 12.4.13. Add defines needed for debugging. Remove the ti_stats structure, it is now defined in sys/tiio.h. ti_fw.h: 12.4.11 firmware. ti_fw2.h: 12.4.11 firmware, plus selected fixes from 12.4.13, and my header splitting patches. Revision 12.4.13 doesn't handle 10/100 negotiation properly. (This firmware is the same as what was in the tree previously, with the addition of header splitting support.) sys/jumbo.h: Jumbo buffer allocator interface. sys/mbuf.h: Add a new external mbuf type, EXT_DISPOSABLE, to indicate that the payload buffer can be thrown away / flipped to a userland process. socketvar.h: Add prototype for socow_setup. tiio.h: ioctl interface to the character portion of the ti(4) driver, plus associated structure/type definitions. uio.h: Change prototype for uiomoveco() so that we'll know whether the source page is disposable. ufs_readwrite.c:Update for new prototype of uiomoveco(). vm_fault.c: In vm_fault(), check to see whether we need to do a page based copy on write fault. vm_object.c: Add a new function, vm_object_allocate_wait(). This does the same thing that vm_object allocate does, except that it gives the caller the opportunity to specify whether it should wait on the uma_zalloc() of the object structre. This allows vm objects to be allocated while holding a mutex. (Without generating WITNESS warnings.) vm_object_allocate() is implemented as a call to vm_object_allocate_wait() with the malloc flag set to M_WAITOK. vm_object.h: Add prototype for vm_object_allocate_wait(). vm_page.c: Add page-based copy on write setup, clear and fault routines. vm_page.h: Add page based COW function prototypes and variable in the vm_page structure. Many thanks to Drew Gallatin, who wrote the zero copy send and receive code, and to all the other folks who have tested and reviewed this code over the years.
2002-06-26 03:37:47 +00:00
/*
* When we're debugging, the chip is often stopped for long periods
* of time, and that would normally cause the watchdog timer to fire.
* Since that impedes debugging, we don't want to do that.
*/
if (sc->ti_flags & TI_FLAG_DEBUGING) {
TI_UNLOCK(sc);
return;
}
Use if_printf() and device_printf().
2005-09-29 16:47:08 +00:00
if_printf(ifp, "watchdog timeout -- resetting\n");
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
ti_stop(sc);
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
ti_init_locked(sc);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
ifp->if_oerrors++;
First round of converting network drivers from spls to mutexes. This takes care of all the 10/100 and gigE PCI drivers that I've done. Next will be the wireless drivers, then the USB ones. I may pick up some stragglers along the way. I'm sort of playing this by ear: if anyone spots any places where I've screwed up horribly, please let me know.
2000-10-13 17:54:19 +00:00
TI_UNLOCK(sc);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/*
* Stop the adapter and free any mbufs allocated to the
* RX and TX lists.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_stop(sc)
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
struct ti_softc *sc;
{
struct ifnet *ifp;
struct ti_cmd_desc cmd;
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
TI_LOCK_ASSERT(sc);
First round of converting network drivers from spls to mutexes. This takes care of all the 10/100 and gigE PCI drivers that I've done. Next will be the wireless drivers, then the USB ones. I may pick up some stragglers along the way. I'm sort of playing this by ear: if anyone spots any places where I've screwed up horribly, please let me know.
2000-10-13 17:54:19 +00:00
Stop embedding struct ifnet at the top of driver softcs. Instead the struct ifnet or the layer 2 common structure it was embedded in have been replaced with a struct ifnet pointer to be filled by a call to the new function, if_alloc(). The layer 2 common structure is also allocated via if_alloc() based on the interface type. It is hung off the new struct ifnet member, if_l2com. This change removes the size of these structures from the kernel ABI and will allow us to better manage them as interfaces come and go. Other changes of note: - Struct arpcom is no longer referenced in normal interface code. Instead the Ethernet address is accessed via the IFP2ENADDR() macro. To enforce this ac_enaddr has been renamed to _ac_enaddr. - The second argument to ether_ifattach is now always the mac address from driver private storage rather than sometimes being ac_enaddr. Reviewed by: sobomax, sam
2005-06-10 16:49:24 +00:00
ifp = sc->ti_ifp;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Disable host interrupts. */
CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1);
/*
* Tell firmware we're shutting down.
*/
TI_DO_CMD(TI_CMD_HOST_STATE, TI_CMD_CODE_STACK_DOWN, 0);
/* Halt and reinitialize. */
Bring big-endian architecture support for ti(4). . remove unnecessay header files after Scott's bus_dma(9) commit. . remove global variable tis which was introduced at the time of zero_copy(9) changes. The variable tis was not used at all. The same applyes to ti_links in softc so axe it. . deregister variables. . axe ti_vhandle and switch to use explicit register access for accessing NIC local memory. Creates three variants of ti_mem to read/write NIC local memory(ti_mem_read, ti_mem_write) and clearing NIC local memory(ti_mem_zero). This greatly enhances code readability and have ti(4) drop using shared memory scheme for Tigon 1. As Tigon 1 switched to use explicit register access for Tx, axe ti_tx_ring_nic/ti_cmd_ring in softc.(Tigon 2 used to host ring scheme which means there is no need to access NIC local memory via register access for Tx and NIC would DMA the modified Tx rings into its local memory.) [1] . introduce new macro TI_EVENT_*/TI_CMD_* to handle NIC envent/command. Instead of using bit fields assginment for accessing the event, use shift operations to set/get it. [1] . add additional check for valid DMA tags in ti_free_dmamaps(). . add missing bus_dmamap_sync/bus_dmamap_unload in ti_free_*_ring_*. . fix locking nits(MTX_RECURSE mutex) and make ti(4) MPSAFE. . change data type of ti_rdata_phys to bus_addr_t and don't blindly cast to uint32_t. . rearrange detach path and make ti(4) survive during device detach. . for Tigon 1, use explicit register access for checking Tx descriptors in ti_encap()/ti_txeof(). [1] . properly call bus_dmamap_sync(9) for updating statistics. . remove extra semicolon in ti_encap() . rewrite loading MAC address to work on strict-alignment architectures. . move TI_RD_OFF macro to if_tireg.h . axe ETHER_ALIGN as it's already defined in <net/ethernet.h>. . make macros immuine from expansion by adding parenthesis and do-while. . remove alpha specific hack as vtophys(9) is no longer used in ti(4) after Scott's bus_dma(9) fix. Reviewed by: scottl Obtained from: OpenBSD [1]
2005-12-28 02:57:19 +00:00
if (ti_chipinit(sc) != 0)
return;
ti_mem_zero(sc, 0x2000, 0x100000 - 0x2000);
if (ti_chipinit(sc) != 0)
return;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
/* Free the RX lists. */
ti_free_rx_ring_std(sc);
/* Free jumbo RX list. */
ti_free_rx_ring_jumbo(sc);
/* Free mini RX list. */
ti_free_rx_ring_mini(sc);
/* Free TX buffers. */
ti_free_tx_ring(sc);
sc->ti_ev_prodidx.ti_idx = 0;
sc->ti_return_prodidx.ti_idx = 0;
sc->ti_tx_considx.ti_idx = 0;
sc->ti_tx_saved_considx = TI_TXCONS_UNSET;
Propagate rename of IFF_OACTIVE and IFF_RUNNING to IFF_DRV_OACTIVE and IFF_DRV_RUNNING, as well as the move from ifnet.if_flags to ifnet.if_drv_flags. Device drivers are now responsible for synchronizing access to these flags, as they are in if_drv_flags. This helps prevent races between the network stack and device driver in maintaining the interface flags field. Many __FreeBSD__ and __FreeBSD_version checks maintained and continued; some less so. Reviewed by: pjd, bz MFC after: 7 days
2005-08-09 10:20:02 +00:00
ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
/*
* Stop all chip I/O so that the kernel's probe routines don't
* get confused by errant DMAs when rebooting.
*/
style: put return types on a line by themselves.
2002-08-24 00:02:03 +00:00
static void
ti_shutdown(dev)
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
device_t dev;
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
{
struct ti_softc *sc;
Convert the Alteon Tigon gigabit ethernet driver to newbus. Also upgrade to the latest firmware release from Alteon (12.3.12).
1999-07-23 02:10:11 +00:00
sc = device_get_softc(dev);
First round of converting network drivers from spls to mutexes. This takes care of all the 10/100 and gigE PCI drivers that I've done. Next will be the wireless drivers, then the USB ones. I may pick up some stragglers along the way. I'm sort of playing this by ear: if anyone spots any places where I've screwed up horribly, please let me know.
2000-10-13 17:54:19 +00:00
TI_LOCK(sc);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
ti_chipinit(sc);
First round of converting network drivers from spls to mutexes. This takes care of all the 10/100 and gigE PCI drivers that I've done. Next will be the wireless drivers, then the USB ones. I may pick up some stragglers along the way. I'm sort of playing this by ear: if anyone spots any places where I've screwed up horribly, please let me know.
2000-10-13 17:54:19 +00:00
TI_UNLOCK(sc);
Add driver support for gigabit ethernet adapters based on the Alteon Networks Tigon 1 and Tigon 2 chipsets. There are a _lot_ of OEM'ed gigabit ethernet adapters out there which use the Alteon chipset so this driver covers a fair amount of hardware. I know that it works with the Alteon AceNIC, 3Com 3c985 and Netgear GA620, however it should also work with the DEC/Compaq EtherWORKS 1000, Silicon Graphics Gigabit ethernet board, NEC Gigabit Ethernet board and maybe even the IBM and and Sun boards. The Netgear board is the cheapest (~$350US) but still yields fairly good performance. Support is provided for jumbo frames with all adapters (just set the MTU to something larger than 1500 bytes), as well as hardware multicast filtering and vlan tagging (in conjunction with the vlan support in -current, which I should merge into -stable soon). There are some hooks for checksum offload support, but they're turned off for now since FreeBSD doesn't have an officially sanctioned way to support checksum offloading (yet). I have not added the 'device ti0' entry to GENERIC since the driver with all the firmware compiled in is quite large, and it doesn't really fit into the category of generic hardware.
1999-04-06 17:08:31 +00:00
}
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