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freebsd-dev/sys/net/iflib_private.h

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iflib(9): Add support for cloning pseudo interfaces Part 3 of many ... The VPC framework relies heavily on cloning pseudo interfaces (vmnics, vpc switch, vcpswitch port, hostif, vxlan if, etc). This pulls in that piece. Some ancillary changes get pulled in as a side effect. Reviewed by: shurd@ Approved by: sbruno@ Sponsored by: Joyent, Inc. Differential Revision: https://reviews.freebsd.org/D15347
2018-05-11 20:08:28 +00:00
/*-
* Copyright (c) 2018, Matthew Macy (mmacy@freebsd.org)
* 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. Neither the name of Matthew Macy nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 THE COPYRIGHT OWNER OR CONTRIBUTORS 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.
*
* $FreeBSD$
*/
#ifndef __NET_IFLIB_PRIVATE_H_
- Replace unused and only ever written to members of public iflib(9) structs with placeholders (in the latter case, IFLIB_MAX_TX_BYTES etc. are also only ever used for these write-only members if at all, so both these macros and members can just go). Using these spares may render it possible to merge certain iflib(9) fixes to stable/12. Otherwise, changes extending struct if_irq or struct if_shared_ctx in any way would break KBI as instances of these are allocated by the driver front-ends (by contrast, struct if_pkt_info as well as struct if_softc_ctx instances are provided by iflib(9) and, thus, may grow at least at the end without breaking KBI). - Make the pvi_name in struct pci_vendor_info const char * as device identifiers in hardware lookup tables aren't to be expected to ever change at runtime. - Similarly, make the pci_vendor_info_t of struct if_shared_ctx which is used to point to the struct pci_vendor_info arrays provided by the driver front-ends const. - Remove the ETH_ADDR_LEN macro from iflib.h; this was duplicating ETHER_ADDR_LEN of <net/ethernet.h> with iflib(9) actually only consuming the latter macro. - Make the name argument of iflib_io_tqg_attach(9) const, matching the taskqgroup_attach_cpu(9) this function wraps as well as e. g. iflib_config_gtask_init(9). - Remove the orphaned iflib_qset_lock_get() prototype. - Remove some extraneous empty lines.
2019-06-15 11:07:41 +00:00
#define __NET_IFLIB_PRIVATE_H_
iflib(9): Add support for cloning pseudo interfaces Part 3 of many ... The VPC framework relies heavily on cloning pseudo interfaces (vmnics, vpc switch, vcpswitch port, hostif, vxlan if, etc). This pulls in that piece. Some ancillary changes get pulled in as a side effect. Reviewed by: shurd@ Approved by: sbruno@ Sponsored by: Joyent, Inc. Differential Revision: https://reviews.freebsd.org/D15347
2018-05-11 20:08:28 +00:00
#define IFC_LEGACY 0x001
#define IFC_QFLUSH 0x002
#define IFC_MULTISEG 0x004
Use busdma unconditionally in iflib - Remove the complex mechanism to choose between using busdma and raw pmap_kextract at runtime. The reduced complexity makes the code easier to read and maintain. - Fix a bug in the small packet receive path where clusters were repeatedly mapped but never unmapped. We now store the cluster's bus address and avoid re-mapping the cluster each time a small packet is received. This patch fixes bugs I've seen where ixl(4) will not even respond to ping without seeing DMAR faults. I see a small improvement (14%) on packet forwarding tests using a Haswell based Xeon E5-2697 v3. Olivier sees a small regression (-3% to -6%) with lower end hardware. Reviewed by: mmacy Not objected to by: sbruno MFC after: 8 weeks Sponsored by: Netflix, Inc Differential Revision: https://reviews.freebsd.org/D17901
2018-11-27 20:01:05 +00:00
#define IFC_SPARE1 0x008
iflib(9): Add support for cloning pseudo interfaces Part 3 of many ... The VPC framework relies heavily on cloning pseudo interfaces (vmnics, vpc switch, vcpswitch port, hostif, vxlan if, etc). This pulls in that piece. Some ancillary changes get pulled in as a side effect. Reviewed by: shurd@ Approved by: sbruno@ Sponsored by: Joyent, Inc. Differential Revision: https://reviews.freebsd.org/D15347
2018-05-11 20:08:28 +00:00
#define IFC_SC_ALLOCATED 0x010
#define IFC_INIT_DONE 0x020
#define IFC_PREFETCH 0x040
#define IFC_DO_RESET 0x080
#define IFC_DO_WATCHDOG 0x100
- Replace unused and only ever written to members of public iflib(9) structs with placeholders (in the latter case, IFLIB_MAX_TX_BYTES etc. are also only ever used for these write-only members if at all, so both these macros and members can just go). Using these spares may render it possible to merge certain iflib(9) fixes to stable/12. Otherwise, changes extending struct if_irq or struct if_shared_ctx in any way would break KBI as instances of these are allocated by the driver front-ends (by contrast, struct if_pkt_info as well as struct if_softc_ctx instances are provided by iflib(9) and, thus, may grow at least at the end without breaking KBI). - Make the pvi_name in struct pci_vendor_info const char * as device identifiers in hardware lookup tables aren't to be expected to ever change at runtime. - Similarly, make the pci_vendor_info_t of struct if_shared_ctx which is used to point to the struct pci_vendor_info arrays provided by the driver front-ends const. - Remove the ETH_ADDR_LEN macro from iflib.h; this was duplicating ETHER_ADDR_LEN of <net/ethernet.h> with iflib(9) actually only consuming the latter macro. - Make the name argument of iflib_io_tqg_attach(9) const, matching the taskqgroup_attach_cpu(9) this function wraps as well as e. g. iflib_config_gtask_init(9). - Remove the orphaned iflib_qset_lock_get() prototype. - Remove some extraneous empty lines.
2019-06-15 11:07:41 +00:00
#define IFC_SPARE0 0x200
iflib(9): Add support for cloning pseudo interfaces Part 3 of many ... The VPC framework relies heavily on cloning pseudo interfaces (vmnics, vpc switch, vcpswitch port, hostif, vxlan if, etc). This pulls in that piece. Some ancillary changes get pulled in as a side effect. Reviewed by: shurd@ Approved by: sbruno@ Sponsored by: Joyent, Inc. Differential Revision: https://reviews.freebsd.org/D15347
2018-05-11 20:08:28 +00:00
#define IFC_PSEUDO 0x400
ixl/iavf(4): Change ixlv to iavf and update it to use iflib(9) Finishes the conversion of the 40Gb Intel Ethernet drivers to iflib(9) for FreeBSD 12.0, and fixes numerous bugs in both ixl(4) and iavf(4). This commit also re-adds the VF driver to GENERIC since it now compiles and functions. The VF driver name was changed from ixlv(4) to iavf(4) because the VF driver is now intended to be used with future products, not just with Fortville/Fort Park VFs. A man page update that documents these drivers is forthcoming in a separate commit. Reviewed by: sbruno@, kbowling@ Tested by: jeffrey.e.pieper@intel.com Approved by: re (gjb@) Relnotes: yes Sponsored by: Intel Corporation Differential Revision: https://reviews.freebsd.org/D16429
2018-10-12 22:40:54 +00:00
#define IFC_IN_DETACH 0x800
iflib(9): Add support for cloning pseudo interfaces Part 3 of many ... The VPC framework relies heavily on cloning pseudo interfaces (vmnics, vpc switch, vcpswitch port, hostif, vxlan if, etc). This pulls in that piece. Some ancillary changes get pulled in as a side effect. Reviewed by: shurd@ Approved by: sbruno@ Sponsored by: Joyent, Inc. Differential Revision: https://reviews.freebsd.org/D15347
2018-05-11 20:08:28 +00:00
- Replace unused and only ever written to members of public iflib(9) structs with placeholders (in the latter case, IFLIB_MAX_TX_BYTES etc. are also only ever used for these write-only members if at all, so both these macros and members can just go). Using these spares may render it possible to merge certain iflib(9) fixes to stable/12. Otherwise, changes extending struct if_irq or struct if_shared_ctx in any way would break KBI as instances of these are allocated by the driver front-ends (by contrast, struct if_pkt_info as well as struct if_softc_ctx instances are provided by iflib(9) and, thus, may grow at least at the end without breaking KBI). - Make the pvi_name in struct pci_vendor_info const char * as device identifiers in hardware lookup tables aren't to be expected to ever change at runtime. - Similarly, make the pci_vendor_info_t of struct if_shared_ctx which is used to point to the struct pci_vendor_info arrays provided by the driver front-ends const. - Remove the ETH_ADDR_LEN macro from iflib.h; this was duplicating ETHER_ADDR_LEN of <net/ethernet.h> with iflib(9) actually only consuming the latter macro. - Make the name argument of iflib_io_tqg_attach(9) const, matching the taskqgroup_attach_cpu(9) this function wraps as well as e. g. iflib_config_gtask_init(9). - Remove the orphaned iflib_qset_lock_get() prototype. - Remove some extraneous empty lines.
2019-06-15 11:07:41 +00:00
#define IFC_NETMAP_TX_IRQ 0x80000000
Work around lack of TX IRQs in iflib for netmap When poll() is called via netmap, txsync is initially called, and if there are no available buffers to reclaim, it waits for the driver to notify of new buffers. Since the TX IRQ is generally not used in iflib drivers, this ends up causing a timeout. Work around this by having the reclaim DELAY(1) if it's initially unable to reclaim anything, then schedule the tx task, which will spin by continuously rescheduling itself until some buffers are reclaimed. In general, the delay is enough to allow some buffers to be reclaimed, so spinning is minimized. Reported by: Johannes Lundberg <johalun0@gmail.com> Reviewed by: sbruno Sponsored by: Limelight Networks Differential Revision: https://reviews.freebsd.org/D15455
2018-05-16 21:03:22 +00:00
iflib(9): Add support for cloning pseudo interfaces Part 3 of many ... The VPC framework relies heavily on cloning pseudo interfaces (vmnics, vpc switch, vcpswitch port, hostif, vxlan if, etc). This pulls in that piece. Some ancillary changes get pulled in as a side effect. Reviewed by: shurd@ Approved by: sbruno@ Sponsored by: Joyent, Inc. Differential Revision: https://reviews.freebsd.org/D15347
2018-05-11 20:08:28 +00:00
MALLOC_DECLARE(M_IFLIB);
struct iflib_cloneattach_ctx {
struct if_clone *cc_ifc;
caddr_t cc_params;
const char *cc_name;
int cc_len;
};
extern driver_t iflib_pseudodriver;
int noop_attach(device_t dev);
int iflib_pseudo_detach(device_t dev);
int iflib_pseudo_register(device_t dev, if_shared_ctx_t sctx, if_ctx_t *ctxp,
struct iflib_cloneattach_ctx *clctx);
int iflib_pseudo_deregister(if_ctx_t ctx);
uint32_t iflib_get_flags(if_ctx_t ctx);
void iflib_set_detach(if_ctx_t ctx);
void iflib_stop(if_ctx_t ctx);
#endif
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