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freebsd-nq/sys/dev/hme/if_hmevar.h

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Add a driver for the Sun HME PCI/SBus ethernet adaptor, which is onboard in most machines of the Sun Ultra series. This is a port of the NetBSD driver which I enhanced to make use of the gather functionality and the configurable RX buffer offset to avoid copying all received/sent packet (instead, packets will be directly DMAd from mbuf chains and into mbuf clusters now).
2002-02-27 17:35:48 +00:00
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Paul Kranenburg.
*
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*
* from: NetBSD: hmevar.h,v 1.5 2000/06/25 01:10:04 eeh Exp
*
* $FreeBSD$
*/
#include <sys/callout.h>
/*
* Number of receive and transmit descriptors. For each receive descriptor,
* an mbuf cluster is allocated and set up to receive a packet, and a dma map
* is created. Therefore, this number should not be too high to not waste
* memory.
Convert to use bus_dmamap_load_mbuf(); decouple software TX descriptors from the hardware descriptors to avoid the overhead of having a DMA map for each of them. Bump the number of hardware descriptors to 128, and use half as many software descriptors for now. Some minor cleanups.
2003-01-06 22:12:57 +00:00
* TX descriptors have no static cost, except for the memory directly allocated
* for them. TX queue elements (the number of which is fixed by HME_NTXQ) hold
* the software state for a transmit job; each has a dmamap allocated for it.
* There may be multiple descriptors allocated to a single queue element.
o Disable HMEDEBUG by default. o Add CTASSERTs ensuring that HME_NRXDESC and HME_NTXDESC are set to legal values. o Use appropriate maxsize, nsegments and maxsegsize parameters when creating DMA tags and correct some comments related to them. o The FreeBSD bus_dmamap_sync(9) supports ored together flags for quite some time now so collapse calls accordingly. o Add missing BUS_DMASYNC_PREREAD when syncing the control DMA maps in hme_rint() and hme_start_locked(). o Keep state of the link state and use it to enable or disable the MAC in hme_mii_statchg() accordingly as well as to return early from hme_start_locked() in case the link is down. o Introduce a sc_flags and use it to replace individual members like sc_pci. o Add bus_barrier(9) calls to hme_mac_bitflip(), hme_mii_readreg(), hme_mii_writereg() and hme_stop() to ensure the respective bit has been written before we starting polling on it and for the right bits to change. o Rather just returning in case hme_mac_bitflip() fails and leaving us in an undefined state report the problem and move on; chances are the requested configuration will become active shortly after. o Don't call hme_start_locked() in hme_init_locked() unconditionally but only after calls to hme_init_locked() when it's appropriate, i.e. in hme_watchdog(). o Add a KASSERT which asserts nsegs is valid also to hme_load_txmbuf(). o In hme_load_txmbuf(): - use a maximum of the newly introduced HME_NTXSEGS segments instead of the incorrect HME_NTXQ, which reflects the maximum TX queue length, for loading the mbufs and put the DMA segments back onto the stack instead of the softc as 16 should be ok there. - use the common errno(2) return values instead of homegrown ones, - given that hme_load_txmbuf() is allowed to fail resulting in a packet drop for quite some time now implement the functionality of hme_txcksum() by means of m_pullup(9), which de-obfuscates the code and allows to always retrieve the correct length of the IP header, [1] - also add a KASSERT which asserts nsegs is valid, - take advantage of m_collapse(9) instead of m_defrag(9) for performance reasons. o Don't bother to check whether the interface is running or whether its queue is empty before calling hme_start_locked() in hme_tint(), the former will check these anyway. o In hme_intr() call hme_rint() before hme_tint() as gem_tint() may take quite a while to return when it calls hme_start_locked(). o Get rid of sc_debug and just check if_flags for IFF_DEBUG directly. o Add a shadow sc_ifflags so we don't reset the chip when unnecessary. o Handle IFF_ALLMULTI correctly. [2] o Use PCIR_BAR instead of a homegrown macro. o Replace sc_enaddr[6] with sc_enaddr[ETHER_ADDR_LEN]. o Use the maximum of 256 TX descriptors for better performance as using all of them has no additional static cost rather than using just half of them. Reported by: rwatson [2] Suggested by: yongari [1] Reviewed by: yongari MFC after: 1 month
2008-04-24 23:12:03 +00:00
* HME_NTXQ and HME_NTXSEGS are completely arbitrary.
Add a driver for the Sun HME PCI/SBus ethernet adaptor, which is onboard in most machines of the Sun Ultra series. This is a port of the NetBSD driver which I enhanced to make use of the gather functionality and the configurable RX buffer offset to avoid copying all received/sent packet (instead, packets will be directly DMAd from mbuf chains and into mbuf clusters now).
2002-02-27 17:35:48 +00:00
*/
o Disable HMEDEBUG by default. o Add CTASSERTs ensuring that HME_NRXDESC and HME_NTXDESC are set to legal values. o Use appropriate maxsize, nsegments and maxsegsize parameters when creating DMA tags and correct some comments related to them. o The FreeBSD bus_dmamap_sync(9) supports ored together flags for quite some time now so collapse calls accordingly. o Add missing BUS_DMASYNC_PREREAD when syncing the control DMA maps in hme_rint() and hme_start_locked(). o Keep state of the link state and use it to enable or disable the MAC in hme_mii_statchg() accordingly as well as to return early from hme_start_locked() in case the link is down. o Introduce a sc_flags and use it to replace individual members like sc_pci. o Add bus_barrier(9) calls to hme_mac_bitflip(), hme_mii_readreg(), hme_mii_writereg() and hme_stop() to ensure the respective bit has been written before we starting polling on it and for the right bits to change. o Rather just returning in case hme_mac_bitflip() fails and leaving us in an undefined state report the problem and move on; chances are the requested configuration will become active shortly after. o Don't call hme_start_locked() in hme_init_locked() unconditionally but only after calls to hme_init_locked() when it's appropriate, i.e. in hme_watchdog(). o Add a KASSERT which asserts nsegs is valid also to hme_load_txmbuf(). o In hme_load_txmbuf(): - use a maximum of the newly introduced HME_NTXSEGS segments instead of the incorrect HME_NTXQ, which reflects the maximum TX queue length, for loading the mbufs and put the DMA segments back onto the stack instead of the softc as 16 should be ok there. - use the common errno(2) return values instead of homegrown ones, - given that hme_load_txmbuf() is allowed to fail resulting in a packet drop for quite some time now implement the functionality of hme_txcksum() by means of m_pullup(9), which de-obfuscates the code and allows to always retrieve the correct length of the IP header, [1] - also add a KASSERT which asserts nsegs is valid, - take advantage of m_collapse(9) instead of m_defrag(9) for performance reasons. o Don't bother to check whether the interface is running or whether its queue is empty before calling hme_start_locked() in hme_tint(), the former will check these anyway. o In hme_intr() call hme_rint() before hme_tint() as gem_tint() may take quite a while to return when it calls hme_start_locked(). o Get rid of sc_debug and just check if_flags for IFF_DEBUG directly. o Add a shadow sc_ifflags so we don't reset the chip when unnecessary. o Handle IFF_ALLMULTI correctly. [2] o Use PCIR_BAR instead of a homegrown macro. o Replace sc_enaddr[6] with sc_enaddr[ETHER_ADDR_LEN]. o Use the maximum of 256 TX descriptors for better performance as using all of them has no additional static cost rather than using just half of them. Reported by: rwatson [2] Suggested by: yongari [1] Reviewed by: yongari MFC after: 1 month
2008-04-24 23:12:03 +00:00
#define HME_NRXDESC 128
#define HME_NTXDESC 256
#define HME_NTXQ 64
#define HME_NTXSEGS 16
Add a driver for the Sun HME PCI/SBus ethernet adaptor, which is onboard in most machines of the Sun Ultra series. This is a port of the NetBSD driver which I enhanced to make use of the gather functionality and the configurable RX buffer offset to avoid copying all received/sent packet (instead, packets will be directly DMAd from mbuf chains and into mbuf clusters now).
2002-02-27 17:35:48 +00:00
/* Maximum size of a mapped RX buffer. */
#define HME_BUFSZ 1600
/*
* RX DMA descriptor. The descriptors are preallocated; the dma map is
* reused.
*/
struct hme_rxdesc {
struct mbuf *hrx_m;
bus_dmamap_t hrx_dmamap;
};
Convert to use bus_dmamap_load_mbuf(); decouple software TX descriptors from the hardware descriptors to avoid the overhead of having a DMA map for each of them. Bump the number of hardware descriptors to 128, and use half as many software descriptors for now. Some minor cleanups.
2003-01-06 22:12:57 +00:00
/* Lazily leave at least one burst size grace space. */
#define HME_DESC_RXLEN(sc, d) \
ulmin(HME_BUFSZ, (d)->hrx_m->m_len - (sc)->sc_burst)
Add a driver for the Sun HME PCI/SBus ethernet adaptor, which is onboard in most machines of the Sun Ultra series. This is a port of the NetBSD driver which I enhanced to make use of the gather functionality and the configurable RX buffer offset to avoid copying all received/sent packet (instead, packets will be directly DMAd from mbuf chains and into mbuf clusters now).
2002-02-27 17:35:48 +00:00
struct hme_txdesc {
struct mbuf *htx_m;
bus_dmamap_t htx_dmamap;
Convert to use bus_dmamap_load_mbuf(); decouple software TX descriptors from the hardware descriptors to avoid the overhead of having a DMA map for each of them. Bump the number of hardware descriptors to 128, and use half as many software descriptors for now. Some minor cleanups.
2003-01-06 22:12:57 +00:00
int htx_lastdesc;
STAILQ_ENTRY(hme_txdesc) htx_q;
Add a driver for the Sun HME PCI/SBus ethernet adaptor, which is onboard in most machines of the Sun Ultra series. This is a port of the NetBSD driver which I enhanced to make use of the gather functionality and the configurable RX buffer offset to avoid copying all received/sent packet (instead, packets will be directly DMAd from mbuf chains and into mbuf clusters now).
2002-02-27 17:35:48 +00:00
};
Convert to use bus_dmamap_load_mbuf(); decouple software TX descriptors from the hardware descriptors to avoid the overhead of having a DMA map for each of them. Bump the number of hardware descriptors to 128, and use half as many software descriptors for now. Some minor cleanups.
2003-01-06 22:12:57 +00:00
STAILQ_HEAD(hme_txdq, hme_txdesc);
Add a driver for the Sun HME PCI/SBus ethernet adaptor, which is onboard in most machines of the Sun Ultra series. This is a port of the NetBSD driver which I enhanced to make use of the gather functionality and the configurable RX buffer offset to avoid copying all received/sent packet (instead, packets will be directly DMAd from mbuf chains and into mbuf clusters now).
2002-02-27 17:35:48 +00:00
struct hme_ring {
/* Ring Descriptors */
caddr_t rb_membase; /* Packet buffer: CPU address */
bus_addr_t rb_dmabase; /* Packet buffer: DMA address */
caddr_t rb_txd; /* Transmit descriptors */
bus_addr_t rb_txddma; /* DMA address of same */
caddr_t rb_rxd; /* Receive descriptors */
bus_addr_t rb_rxddma; /* DMA address of same */
/* Ring Descriptor state */
Convert to use bus_dmamap_load_mbuf(); decouple software TX descriptors from the hardware descriptors to avoid the overhead of having a DMA map for each of them. Bump the number of hardware descriptors to 128, and use half as many software descriptors for now. Some minor cleanups.
2003-01-06 22:12:57 +00:00
int rb_tdhead, rb_tdtail;
int rb_rdtail;
int rb_td_nbusy;
Add a driver for the Sun HME PCI/SBus ethernet adaptor, which is onboard in most machines of the Sun Ultra series. This is a port of the NetBSD driver which I enhanced to make use of the gather functionality and the configurable RX buffer offset to avoid copying all received/sent packet (instead, packets will be directly DMAd from mbuf chains and into mbuf clusters now).
2002-02-27 17:35:48 +00:00
/* Descriptors */
Convert to use bus_dmamap_load_mbuf(); decouple software TX descriptors from the hardware descriptors to avoid the overhead of having a DMA map for each of them. Bump the number of hardware descriptors to 128, and use half as many software descriptors for now. Some minor cleanups.
2003-01-06 22:12:57 +00:00
struct hme_rxdesc rb_rxdesc[HME_NRXDESC];
struct hme_txdesc rb_txdesc[HME_NTXQ];
struct hme_txdq rb_txfreeq;
struct hme_txdq rb_txbusyq;
Add a driver for the Sun HME PCI/SBus ethernet adaptor, which is onboard in most machines of the Sun Ultra series. This is a port of the NetBSD driver which I enhanced to make use of the gather functionality and the configurable RX buffer offset to avoid copying all received/sent packet (instead, packets will be directly DMAd from mbuf chains and into mbuf clusters now).
2002-02-27 17:35:48 +00:00
bus_dmamap_t rb_spare_dmamap;
};
struct hme_softc {
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
struct ifnet *sc_ifp;
Add a driver for the Sun HME PCI/SBus ethernet adaptor, which is onboard in most machines of the Sun Ultra series. This is a port of the NetBSD driver which I enhanced to make use of the gather functionality and the configurable RX buffer offset to avoid copying all received/sent packet (instead, packets will be directly DMAd from mbuf chains and into mbuf clusters now).
2002-02-27 17:35:48 +00:00
struct ifmedia sc_ifmedia;
device_t sc_dev;
device_t sc_miibus;
struct mii_data *sc_mii; /* MII media control */
o Disable HMEDEBUG by default. o Add CTASSERTs ensuring that HME_NRXDESC and HME_NTXDESC are set to legal values. o Use appropriate maxsize, nsegments and maxsegsize parameters when creating DMA tags and correct some comments related to them. o The FreeBSD bus_dmamap_sync(9) supports ored together flags for quite some time now so collapse calls accordingly. o Add missing BUS_DMASYNC_PREREAD when syncing the control DMA maps in hme_rint() and hme_start_locked(). o Keep state of the link state and use it to enable or disable the MAC in hme_mii_statchg() accordingly as well as to return early from hme_start_locked() in case the link is down. o Introduce a sc_flags and use it to replace individual members like sc_pci. o Add bus_barrier(9) calls to hme_mac_bitflip(), hme_mii_readreg(), hme_mii_writereg() and hme_stop() to ensure the respective bit has been written before we starting polling on it and for the right bits to change. o Rather just returning in case hme_mac_bitflip() fails and leaving us in an undefined state report the problem and move on; chances are the requested configuration will become active shortly after. o Don't call hme_start_locked() in hme_init_locked() unconditionally but only after calls to hme_init_locked() when it's appropriate, i.e. in hme_watchdog(). o Add a KASSERT which asserts nsegs is valid also to hme_load_txmbuf(). o In hme_load_txmbuf(): - use a maximum of the newly introduced HME_NTXSEGS segments instead of the incorrect HME_NTXQ, which reflects the maximum TX queue length, for loading the mbufs and put the DMA segments back onto the stack instead of the softc as 16 should be ok there. - use the common errno(2) return values instead of homegrown ones, - given that hme_load_txmbuf() is allowed to fail resulting in a packet drop for quite some time now implement the functionality of hme_txcksum() by means of m_pullup(9), which de-obfuscates the code and allows to always retrieve the correct length of the IP header, [1] - also add a KASSERT which asserts nsegs is valid, - take advantage of m_collapse(9) instead of m_defrag(9) for performance reasons. o Don't bother to check whether the interface is running or whether its queue is empty before calling hme_start_locked() in hme_tint(), the former will check these anyway. o In hme_intr() call hme_rint() before hme_tint() as gem_tint() may take quite a while to return when it calls hme_start_locked(). o Get rid of sc_debug and just check if_flags for IFF_DEBUG directly. o Add a shadow sc_ifflags so we don't reset the chip when unnecessary. o Handle IFF_ALLMULTI correctly. [2] o Use PCIR_BAR instead of a homegrown macro. o Replace sc_enaddr[6] with sc_enaddr[ETHER_ADDR_LEN]. o Use the maximum of 256 TX descriptors for better performance as using all of them has no additional static cost rather than using just half of them. Reported by: rwatson [2] Suggested by: yongari [1] Reviewed by: yongari MFC after: 1 month
2008-04-24 23:12:03 +00:00
u_char sc_enaddr[ETHER_ADDR_LEN];
Add a driver for the Sun HME PCI/SBus ethernet adaptor, which is onboard in most machines of the Sun Ultra series. This is a port of the NetBSD driver which I enhanced to make use of the gather functionality and the configurable RX buffer offset to avoid copying all received/sent packet (instead, packets will be directly DMAd from mbuf chains and into mbuf clusters now).
2002-02-27 17:35:48 +00:00
struct callout sc_tick_ch; /* tick callout */
- Use the hme_tick() callout instead of if_slowtimo() for driving hme_watchdog() in order to avoid races accessing if_timer. - Use bus_get_dma_tag() so hme(4) works on platforms requiring it. - Don't bother to set if_mtu to ETHERMTU, ether_ifattach() does that.
2006-12-06 02:07:20 +00:00
int sc_wdog_timer; /* watchdog timer */
Add a driver for the Sun HME PCI/SBus ethernet adaptor, which is onboard in most machines of the Sun Ultra series. This is a port of the NetBSD driver which I enhanced to make use of the gather functionality and the configurable RX buffer offset to avoid copying all received/sent packet (instead, packets will be directly DMAd from mbuf chains and into mbuf clusters now).
2002-02-27 17:35:48 +00:00
/* The following bus handles are to be provided by the bus front-end */
bus_dma_tag_t sc_pdmatag; /* bus dma parent tag */
bus_dma_tag_t sc_cdmatag; /* control bus dma tag */
bus_dmamap_t sc_cdmamap; /* control bus dma handle */
bus_dma_tag_t sc_rdmatag; /* RX bus dma tag */
bus_dma_tag_t sc_tdmatag; /* RX bus dma tag */
bus_space_handle_t sc_sebh; /* HME Global registers */
bus_space_handle_t sc_erxh; /* HME ERX registers */
bus_space_handle_t sc_etxh; /* HME ETX registers */
bus_space_handle_t sc_mach; /* HME MAC registers */
bus_space_handle_t sc_mifh; /* HME MIF registers */
bus_space_tag_t sc_sebt; /* HME Global registers */
bus_space_tag_t sc_erxt; /* HME ERX registers */
bus_space_tag_t sc_etxt; /* HME ETX registers */
bus_space_tag_t sc_mact; /* HME MAC registers */
bus_space_tag_t sc_mift; /* HME MIF registers */
int sc_burst; /* DVMA burst size in effect */
int sc_phys[2]; /* MII instance -> PHY map */
o Disable HMEDEBUG by default. o Add CTASSERTs ensuring that HME_NRXDESC and HME_NTXDESC are set to legal values. o Use appropriate maxsize, nsegments and maxsegsize parameters when creating DMA tags and correct some comments related to them. o The FreeBSD bus_dmamap_sync(9) supports ored together flags for quite some time now so collapse calls accordingly. o Add missing BUS_DMASYNC_PREREAD when syncing the control DMA maps in hme_rint() and hme_start_locked(). o Keep state of the link state and use it to enable or disable the MAC in hme_mii_statchg() accordingly as well as to return early from hme_start_locked() in case the link is down. o Introduce a sc_flags and use it to replace individual members like sc_pci. o Add bus_barrier(9) calls to hme_mac_bitflip(), hme_mii_readreg(), hme_mii_writereg() and hme_stop() to ensure the respective bit has been written before we starting polling on it and for the right bits to change. o Rather just returning in case hme_mac_bitflip() fails and leaving us in an undefined state report the problem and move on; chances are the requested configuration will become active shortly after. o Don't call hme_start_locked() in hme_init_locked() unconditionally but only after calls to hme_init_locked() when it's appropriate, i.e. in hme_watchdog(). o Add a KASSERT which asserts nsegs is valid also to hme_load_txmbuf(). o In hme_load_txmbuf(): - use a maximum of the newly introduced HME_NTXSEGS segments instead of the incorrect HME_NTXQ, which reflects the maximum TX queue length, for loading the mbufs and put the DMA segments back onto the stack instead of the softc as 16 should be ok there. - use the common errno(2) return values instead of homegrown ones, - given that hme_load_txmbuf() is allowed to fail resulting in a packet drop for quite some time now implement the functionality of hme_txcksum() by means of m_pullup(9), which de-obfuscates the code and allows to always retrieve the correct length of the IP header, [1] - also add a KASSERT which asserts nsegs is valid, - take advantage of m_collapse(9) instead of m_defrag(9) for performance reasons. o Don't bother to check whether the interface is running or whether its queue is empty before calling hme_start_locked() in hme_tint(), the former will check these anyway. o In hme_intr() call hme_rint() before hme_tint() as gem_tint() may take quite a while to return when it calls hme_start_locked(). o Get rid of sc_debug and just check if_flags for IFF_DEBUG directly. o Add a shadow sc_ifflags so we don't reset the chip when unnecessary. o Handle IFF_ALLMULTI correctly. [2] o Use PCIR_BAR instead of a homegrown macro. o Replace sc_enaddr[6] with sc_enaddr[ETHER_ADDR_LEN]. o Use the maximum of 256 TX descriptors for better performance as using all of them has no additional static cost rather than using just half of them. Reported by: rwatson [2] Suggested by: yongari [1] Reviewed by: yongari MFC after: 1 month
2008-04-24 23:12:03 +00:00
u_int sc_flags;
#define HME_LINK (1 << 0) /* link is up */
#define HME_PCI (1 << 1) /* PCI busses are little-endian */
int sc_ifflags;
Implement TCP/UDP Transmit/Receive checksum offload. Since HME doesn't compensate the checksum for UDP datagram which can yield to 0x0, UDP transmit checksum offload is disabled by default. The UDP Transmit checksum offload can be reactivated by setting special link option link0 with ifconfig(8). Approved by: jake (mentor) Reviewed by: tmm Tested by: Herve Boulouis <amon@sockar.homeip.net>
2004-08-05 02:52:33 +00:00
int sc_csum_features;
Add a driver for the Sun HME PCI/SBus ethernet adaptor, which is onboard in most machines of the Sun Ultra series. This is a port of the NetBSD driver which I enhanced to make use of the gather functionality and the configurable RX buffer offset to avoid copying all received/sent packet (instead, packets will be directly DMAd from mbuf chains and into mbuf clusters now).
2002-02-27 17:35:48 +00:00
/* Ring descriptor */
Make hme(4) mpsafe - Let hme_start()/hme_init() acquire lock and then call hme_start_locked()/hme_init_locked() respectivly. - Teardown interrupt handler before hme_detach(). - Remove IFF_NEEDSGIANT flag and mark interrupt handler INTR_MPSAFE. - Set callout handler to CALLOUT_MPSAFE. - Add locks in hme MII interface. Reviewed by: jake Tested by: Julian C. Dunn <jdunn at opentrend dot net> MFC after: 2 weeks
2004-11-22 06:46:30 +00:00
struct hme_ring sc_rb;
Add a driver for the Sun HME PCI/SBus ethernet adaptor, which is onboard in most machines of the Sun Ultra series. This is a port of the NetBSD driver which I enhanced to make use of the gather functionality and the configurable RX buffer offset to avoid copying all received/sent packet (instead, packets will be directly DMAd from mbuf chains and into mbuf clusters now).
2002-02-27 17:35:48 +00:00
Make hme(4) mpsafe - Let hme_start()/hme_init() acquire lock and then call hme_start_locked()/hme_init_locked() respectivly. - Teardown interrupt handler before hme_detach(). - Remove IFF_NEEDSGIANT flag and mark interrupt handler INTR_MPSAFE. - Set callout handler to CALLOUT_MPSAFE. - Add locks in hme MII interface. Reviewed by: jake Tested by: Julian C. Dunn <jdunn at opentrend dot net> MFC after: 2 weeks
2004-11-22 06:46:30 +00:00
struct mtx sc_lock;
Add a driver for the Sun HME PCI/SBus ethernet adaptor, which is onboard in most machines of the Sun Ultra series. This is a port of the NetBSD driver which I enhanced to make use of the gather functionality and the configurable RX buffer offset to avoid copying all received/sent packet (instead, packets will be directly DMAd from mbuf chains and into mbuf clusters now).
2002-02-27 17:35:48 +00:00
};
Make hme(4) mpsafe - Let hme_start()/hme_init() acquire lock and then call hme_start_locked()/hme_init_locked() respectivly. - Teardown interrupt handler before hme_detach(). - Remove IFF_NEEDSGIANT flag and mark interrupt handler INTR_MPSAFE. - Set callout handler to CALLOUT_MPSAFE. - Add locks in hme MII interface. Reviewed by: jake Tested by: Julian C. Dunn <jdunn at opentrend dot net> MFC after: 2 weeks
2004-11-22 06:46:30 +00:00
#define HME_LOCK(_sc) mtx_lock(&(_sc)->sc_lock)
#define HME_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_lock)
#define HME_LOCK_ASSERT(_sc, _what) mtx_assert(&(_sc)->sc_lock, (_what))
Add a driver for the Sun HME PCI/SBus ethernet adaptor, which is onboard in most machines of the Sun Ultra series. This is a port of the NetBSD driver which I enhanced to make use of the gather functionality and the configurable RX buffer offset to avoid copying all received/sent packet (instead, packets will be directly DMAd from mbuf chains and into mbuf clusters now).
2002-02-27 17:35:48 +00:00
extern devclass_t hme_devclass;
int hme_config(struct hme_softc *);
Add detach, shutdown, suspend and resume methods. Tested by: jake
2003-01-09 00:45:10 +00:00
void hme_detach(struct hme_softc *);
void hme_suspend(struct hme_softc *);
void hme_resume(struct hme_softc *);
Add a driver for the Sun HME PCI/SBus ethernet adaptor, which is onboard in most machines of the Sun Ultra series. This is a port of the NetBSD driver which I enhanced to make use of the gather functionality and the configurable RX buffer offset to avoid copying all received/sent packet (instead, packets will be directly DMAd from mbuf chains and into mbuf clusters now).
2002-02-27 17:35:48 +00:00
void hme_intr(void *);
/* MII methods & callbacks */
int hme_mii_readreg(device_t, int, int);
int hme_mii_writereg(device_t, int, int, int);
void hme_mii_statchg(device_t);
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