freebsd-nq/sys/pci/if_devar.h
Peter Wemm 28c412b0e9 malloc() the rx and tx descriptors seperately rather than as part of the
large (over 4KB) softc struct.  The descriptor array is accessed by
busmaster dma and must be physically contiguous in memory.  malloc() of
a block greater than a page is only virtually contiguous, and not
necessarily physically contigious.

contigmalloc() could do this, but that is a bit on the overkill side.

I'm not sure of the origins of the problem report and diagnosis, I learned
of the problem via mail forwarded from  Jim Shankland <jas@flyingfox.com>.

Jim said that Matt Thomas's workaround was to reduce the number of
transmit descriptors from 128 to 32, but I was concerned that it might
cost performance.  Anyway, this change is my fault, not Jim's. :-)

Reviewed by: davidg
1997-09-11 15:27:35 +00:00

1052 lines
35 KiB
C

/*-
* Copyright (c) 1994-1997 Matt Thomas (matt@3am-software.com)
* 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. The name of the author may not be used to endorse or promote products
* derived from this software withough specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $Id: if_devar.h,v 1.1.1.2 1997/08/03 12:17:38 peter Exp $
*/
#if !defined(_DEVAR_H)
#define _DEVAR_H
#if defined(__NetBSD__)
typedef bus_addr_t tulip_csrptr_t;
#define TULIP_CSR_READ(sc, csr) \
bus_space_read_4((sc)->tulip_bustag, (sc)->tulip_bushandle, (sc)->tulip_csrs.csr)
#define TULIP_CSR_WRITE(sc, csr, val) \
bus_space_write_4((sc)->tulip_bustag, (sc)->tulip_bushandle, (sc)->tulip_csrs.csr, (val))
#define TULIP_CSR_READBYTE(sc, csr) \
bus_space_read_1((sc)->tulip_bustag, (sc)->tulip_bushandle, (sc)->tulip_csrs.csr)
#define TULIP_CSR_WRITEBYTE(sc, csr, val) \
bus_space_write_1((sc)->tulip_bustag, (sc)->tulip_bushandle, (sc)->tulip_csrs.csr, (val))
#endif /* __NetBSD__ */
#ifdef TULIP_IOMAPPED
#define TULIP_EISA_CSRSIZE 16
#define TULIP_EISA_CSROFFSET 0
#define TULIP_PCI_CSRSIZE 8
#define TULIP_PCI_CSROFFSET 0
#if !defined(__NetBSD__)
typedef u_int16_t tulip_csrptr_t;
#define TULIP_CSR_READ(sc, csr) (inl((sc)->tulip_csrs.csr))
#define TULIP_CSR_WRITE(sc, csr, val) outl((sc)->tulip_csrs.csr, val)
#define TULIP_CSR_READBYTE(sc, csr) (inb((sc)->tulip_csrs.csr))
#define TULIP_CSR_WRITEBYTE(sc, csr, val) outb((sc)->tulip_csrs.csr, val)
#endif /* __NetBSD__ */
#else /* TULIP_IOMAPPED */
#define TULIP_PCI_CSRSIZE 8
#define TULIP_PCI_CSROFFSET 0
#if !defined(__NetBSD__)
typedef volatile u_int32_t *tulip_csrptr_t;
/*
* macros to read and write CSRs. Note that the "0 +" in
* READ_CSR is to prevent the macro from being an lvalue
* and WRITE_CSR shouldn't be assigned from.
*/
#define TULIP_CSR_READ(sc, csr) (0 + *(sc)->tulip_csrs.csr)
#define TULIP_CSR_WRITE(sc, csr, val) ((void)(*(sc)->tulip_csrs.csr = (val)))
#endif /* __NetBSD__ */
#endif /* TULIP_IOMAPPED */
/*
* This structure contains "pointers" for the registers on
* the various 21x4x chips. CSR0 through CSR8 are common
* to all chips. After that, it gets messy...
*/
typedef struct {
tulip_csrptr_t csr_busmode; /* CSR0 */
tulip_csrptr_t csr_txpoll; /* CSR1 */
tulip_csrptr_t csr_rxpoll; /* CSR2 */
tulip_csrptr_t csr_rxlist; /* CSR3 */
tulip_csrptr_t csr_txlist; /* CSR4 */
tulip_csrptr_t csr_status; /* CSR5 */
tulip_csrptr_t csr_command; /* CSR6 */
tulip_csrptr_t csr_intr; /* CSR7 */
tulip_csrptr_t csr_missed_frames; /* CSR8 */
tulip_csrptr_t csr_9; /* CSR9 */
tulip_csrptr_t csr_10; /* CSR10 */
tulip_csrptr_t csr_11; /* CSR11 */
tulip_csrptr_t csr_12; /* CSR12 */
tulip_csrptr_t csr_13; /* CSR13 */
tulip_csrptr_t csr_14; /* CSR14 */
tulip_csrptr_t csr_15; /* CSR15 */
} tulip_regfile_t;
#define csr_enetrom csr_9 /* 21040 */
#define csr_reserved csr_10 /* 21040 */
#define csr_full_duplex csr_11 /* 21040 */
#define csr_bootrom csr_10 /* 21041/21140A/?? */
#define csr_gp csr_12 /* 21140* */
#define csr_watchdog csr_15 /* 21140* */
#define csr_gp_timer csr_11 /* 21041/21140* */
#define csr_srom_mii csr_9 /* 21041/21140* */
#define csr_sia_status csr_12 /* 2104x */
#define csr_sia_connectivity csr_13 /* 2104x */
#define csr_sia_tx_rx csr_14 /* 2104x */
#define csr_sia_general csr_15 /* 2104x */
/*
* While 21x4x allows chaining of its descriptors, this driver
* doesn't take advantage of it. We keep the descriptors in a
* traditional FIFO ring.
*/
typedef struct {
tulip_desc_t *ri_first; /* first entry in ring */
tulip_desc_t *ri_last; /* one after last entry */
tulip_desc_t *ri_nextin; /* next to processed by host */
tulip_desc_t *ri_nextout; /* next to processed by adapter */
int ri_max;
int ri_free;
} tulip_ringinfo_t;
/*
* The 21040 has a stupid restriction in that the receive
* buffers must be longword aligned. But since Ethernet
* headers are not a multiple of longwords in size this forces
* the data to non-longword aligned. Since IP requires the
* data to be longword aligned, we need to copy it after it has
* been DMA'ed in our memory.
*
* Since we have to copy it anyways, we might as well as allocate
* dedicated receive space for the input. This allows to use a
* small receive buffer size and more ring entries to be able to
* better keep with a flood of tiny Ethernet packets.
*
* The receive space MUST ALWAYS be a multiple of the page size.
* And the number of receive descriptors multiplied by the size
* of the receive buffers must equal the recevive space. This
* is so that we can manipulate the page tables so that even if a
* packet wraps around the end of the receive space, we can
* treat it as virtually contiguous.
*
* The above used to be true (the stupid restriction is still true)
* but we gone to directly DMA'ing into MBUFs (unless it's on an
* architecture which can't handle unaligned accesses) because with
* 100Mb/s cards the copying is just too much of a hit.
*/
#if defined(__alpha__)
#define TULIP_COPY_RXDATA 1
#endif
#define TULIP_TXTIMER 4
#define TULIP_RXDESCS 48
#define TULIP_TXDESCS 128
#define TULIP_RXQ_TARGET 32
#if TULIP_RXQ_TARGET >= TULIP_RXDESCS
#error TULIP_RXQ_TARGET must be less than TULIP_RXDESCS
#endif
#define TULIP_RX_BUFLEN ((MCLBYTES < 2048 ? MCLBYTES : 2048) - 16)
/*
* Forward reference to make C happy.
*/
typedef struct _tulip_softc_t tulip_softc_t;
/*
* The various controllers support. Technically the DE425 is just
* a 21040 on EISA. But since it remarkably difference from normal
* 21040s, we give it its own chip id.
*/
typedef enum {
TULIP_21040, TULIP_DE425,
TULIP_21041,
TULIP_21140, TULIP_21140A, TULIP_21142,
TULIP_21143,
TULIP_CHIPID_UNKNOWN
} tulip_chipid_t;
/*
* Various physical media types supported.
* BNCAUI is BNC or AUI since on the 21040 you can't really tell
* which is in use.
*/
typedef enum {
TULIP_MEDIA_UNKNOWN,
TULIP_MEDIA_10BASET,
TULIP_MEDIA_10BASET_FD,
TULIP_MEDIA_BNC,
TULIP_MEDIA_AUI,
TULIP_MEDIA_EXTSIA,
TULIP_MEDIA_AUIBNC,
TULIP_MEDIA_100BASETX,
TULIP_MEDIA_100BASETX_FD,
TULIP_MEDIA_100BASET4,
TULIP_MEDIA_100BASEFX,
TULIP_MEDIA_100BASEFX_FD,
TULIP_MEDIA_MAX
} tulip_media_t;
#define TULIP_BIT(b) (1L << ((int)(b)))
#define TULIP_FDBIT(m) (1L << ((int)TULIP_MEDIA_ ## m ## _FD))
#define TULIP_MBIT(m) (1L << ((int)TULIP_MEDIA_ ## m ))
#define TULIP_IS_MEDIA_FD(m) (TULIP_BIT(m) & \
(TULIP_FDBIT(10BASET) \
|TULIP_FDBIT(100BASETX) \
|TULIP_FDBIT(100BASEFX)))
#define TULIP_CAN_MEDIA_FD(m) (TULIP_BIT(m) & \
(TULIP_MBIT(10BASET) \
|TULIP_MBIT(100BASETX) \
|TULIP_MBIT(100BASEFX)))
#define TULIP_FD_MEDIA_OF(m) ((tulip_media_t)((m) + 1))
#define TULIP_HD_MEDIA_OF(m) ((tulip_media_t)((m) - 1))
#define TULIP_IS_MEDIA_100MB(m) ((m) >= TULIP_MEDIA_100BASETX)
#define TULIP_IS_MEDIA_TP(m) ((TULIP_BIT(m) & \
(TULIP_MBIT(BNC) \
|TULIP_MBIT(AUI) \
|TULIP_MBIT(AUIBNC) \
|TULIP_MBIT(EXTSIA))) == 0)
#define TULIP_SROM_ATTR_MII 0x0100
#define TULIP_SROM_ATTR_NWAY 0x0200
#define TULIP_SROM_ATTR_AUTOSENSE 0x0400
#define TULIP_SROM_ATTR_POWERUP 0x0800
#define TULIP_SROM_ATTR_NOLINKPASS 0x1000
typedef struct {
enum {
TULIP_MEDIAINFO_SIA,
TULIP_MEDIAINFO_GPR,
TULIP_MEDIAINFO_MII,
TULIP_MEDIAINFO_RESET,
TULIP_MEDIAINFO_SYM
} mi_type;
union {
struct {
u_int16_t sia_connectivity;
u_int16_t sia_tx_rx;
u_int16_t sia_general;
u_int32_t sia_gp_control; /* 21142/21143 */
u_int32_t sia_gp_data; /* 21142/21143 */
} un_sia;
struct {
u_int32_t gpr_cmdmode;
u_int32_t gpr_gpcontrol; /* 21142/21143 */
u_int32_t gpr_gpdata;
u_int8_t gpr_actmask;
u_int8_t gpr_actdata;
u_int8_t gpr_default : 1;
} un_gpr;
struct {
u_int32_t mii_mediamask;
u_int16_t mii_capabilities;
u_int16_t mii_advertisement;
u_int16_t mii_full_duplex;
u_int16_t mii_tx_threshold;
u_int16_t mii_interrupt; /* 21142/21143 */
u_int8_t mii_phyaddr;
u_int8_t mii_gpr_length;
u_int8_t mii_gpr_offset;
u_int8_t mii_reset_length;
u_int8_t mii_reset_offset;
u_int32_t mii_phyid;
} un_mii;
} mi_un;
} tulip_media_info_t;
#define mi_sia_connectivity mi_un.un_sia.sia_connectivity
#define mi_sia_tx_rx mi_un.un_sia.sia_tx_rx
#define mi_sia_general mi_un.un_sia.sia_general
#define mi_sia_gp_control mi_un.un_sia.sia_gp_control
#define mi_sia_gp_data mi_un.un_sia.sia_gp_data
#define mi_gpcontrol mi_un.un_gpr.gpr_gpcontrol
#define mi_gpdata mi_un.un_gpr.gpr_gpdata
#define mi_actmask mi_un.un_gpr.gpr_actmask
#define mi_actdata mi_un.un_gpr.gpr_actdata
#define mi_default mi_un.un_gpr.gpr_default
#define mi_cmdmode mi_un.un_gpr.gpr_cmdmode
#define mi_phyaddr mi_un.un_mii.mii_phyaddr
#define mi_gpr_length mi_un.un_mii.mii_gpr_length
#define mi_gpr_offset mi_un.un_mii.mii_gpr_offset
#define mi_reset_length mi_un.un_mii.mii_reset_length
#define mi_reset_offset mi_un.un_mii.mii_reset_offset
#define mi_capabilities mi_un.un_mii.mii_capabilities
#define mi_advertisement mi_un.un_mii.mii_advertisement
#define mi_full_duplex mi_un.un_mii.mii_full_duplex
#define mi_tx_threshold mi_un.un_mii.mii_tx_threshold
#define mi_mediamask mi_un.un_mii.mii_mediamask
#define mi_mii_interrupt mi_un.un_mii.mii_interrupt
#define mi_phyid mi_un.un_mii.mii_phyid
#define TULIP_MEDIAINFO_SIA_INIT(sc, mi, chipid, media) do { \
(mi)->mi_type = TULIP_MEDIAINFO_SIA; \
sc->tulip_mediums[TULIP_MEDIA_ ## media] = (mi); \
(mi)->mi_sia_connectivity = TULIP_ ## chipid ## _SIACONN_ ## media; \
(mi)->mi_sia_tx_rx = TULIP_ ## chipid ## _SIATXRX_ ## media; \
(mi)->mi_sia_general = TULIP_ ## chipid ## _SIAGEN_ ## media; \
} while (0)
#define TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, media) do { \
if ((sc)->tulip_mediums[TULIP_MEDIA_ ## media] == NULL \
&& ((mi)->mi_capabilities & PHYSTS_ ## media)) { \
(sc)->tulip_mediums[TULIP_MEDIA_ ## media] = (mi); \
(mi)->mi_mediamask |= TULIP_BIT(TULIP_MEDIA_ ## media); \
} \
} while (0)
#define TULIP_MII_NOPHY 32
/*
* Some boards need to treated specially. The following enumeration
* identifies the cards with quirks (or those we just want to single
* out for special merit or scorn).
*/
typedef enum {
TULIP_21040_GENERIC, /* Generic 21040 (works with most any board) */
TULIP_21140_ISV, /* Digital Semicondutor 21140 ISV SROM Format */
TULIP_21142_ISV, /* Digital Semicondutor 21142 ISV SROM Format */
TULIP_21143_ISV, /* Digital Semicondutor 21143 ISV SROM Format */
TULIP_21140_DEC_EB, /* Digital Semicondutor 21140 Evaluation Board */
TULIP_21140_MII, /* 21140[A] with MII */
TULIP_21140_DEC_DE500, /* Digital DE500-?? 10/100 */
TULIP_21140_SMC_9332, /* SMC 9332 */
TULIP_21140_COGENT_EM100, /* Cogent EM100 100 only */
TULIP_21140_ZNYX_ZX34X, /* ZNYX ZX342 10/100 */
TULIP_21140_ASANTE, /* AsanteFast 10/100 */
TULIP_21041_GENERIC /* Generic 21041 card */
} tulip_board_t;
typedef enum {
TULIP_MEDIAPOLL_TIMER, /* 100ms timer fired */
TULIP_MEDIAPOLL_FASTTIMER, /* <100ms timer fired */
TULIP_MEDIAPOLL_LINKFAIL, /* called from interrupt routine */
TULIP_MEDIAPOLL_LINKPASS, /* called from interrupt routine */
TULIP_MEDIAPOLL_START, /* start a media probe (called from reset) */
TULIP_MEDIAPOLL_TXPROBE_OK, /* txprobe succeeded */
TULIP_MEDIAPOLL_TXPROBE_FAILED, /* txprobe failed */
TULIP_MEDIAPOLL_MAX
} tulip_mediapoll_event_t;
typedef enum {
TULIP_LINK_DOWN, /* Link is down */
TULIP_LINK_UP, /* link is ok */
TULIP_LINK_UNKNOWN /* we can't tell either way */
} tulip_link_status_t;
/*
* This data structure is used to abstract out the quirks.
* media_probe = tries to determine the media type.
* media_select = enables the current media (or autosenses)
* media_poll = autosenses media
* media_preset = 21140, etal requires bit to set before the
* the software reset; hence pre-set. Should be
* pre-reset but that's ugly.
*/
typedef struct {
tulip_board_t bd_type;
void (*bd_media_probe)(tulip_softc_t * const sc);
void (*bd_media_select)(tulip_softc_t * const sc);
void (*bd_media_poll)(tulip_softc_t * const sc, tulip_mediapoll_event_t event);
void (*bd_media_preset)(tulip_softc_t * const sc);
#if defined(__bsdi__) && _BSDI_VERSION >= 199701
struct ifmedia_entry *bd_media_list;
int bd_media_cnt;
int bd_media_options_mask;
#endif
} tulip_boardsw_t;
/*
* The next few declarations are for MII/PHY based board.
*
* The first enumeration identifies a superset of various datums
* that can be obtained from various PHY chips. Not all PHYs will
* support all datums.
* The modedata structure indicates what register contains
* a datum, what mask is applied the register contents, and what the
* result should be.
* The attr structure records information about a supported PHY.
* The phy structure records information about a PHY instance.
*/
typedef enum {
PHY_MODE_10T,
PHY_MODE_100TX,
PHY_MODE_100T4,
PHY_MODE_FULLDUPLEX,
PHY_MODE_MAX
} tulip_phy_mode_t;
typedef struct {
u_int16_t pm_regno;
u_int16_t pm_mask;
u_int16_t pm_value;
} tulip_phy_modedata_t;
typedef struct {
u_int32_t attr_id;
u_int16_t attr_flags;
#define PHY_NEED_HARD_RESET 0x0001
#define PHY_DUAL_CYCLE_TA 0x0002
tulip_phy_modedata_t attr_modes[PHY_MODE_MAX];
#ifdef TULIP_DEBUG
const char *attr_name;
#endif
} tulip_phy_attr_t;
/*
* Various probe states used when trying to autosense the media.
*/
typedef enum {
TULIP_PROBE_INACTIVE,
TULIP_PROBE_PHYRESET,
TULIP_PROBE_PHYAUTONEG,
TULIP_PROBE_GPRTEST,
TULIP_PROBE_MEDIATEST,
TULIP_PROBE_FAILED
} tulip_probe_state_t;
typedef struct {
/*
* Transmit Statistics
*/
u_int32_t dot3StatsSingleCollisionFrames;
u_int32_t dot3StatsMultipleCollisionFrames;
u_int32_t dot3StatsSQETestErrors;
u_int32_t dot3StatsDeferredTransmissions;
u_int32_t dot3StatsLateCollisions;
u_int32_t dot3StatsExcessiveCollisions;
u_int32_t dot3StatsCarrierSenseErrors;
u_int32_t dot3StatsInternalMacTransmitErrors;
u_int32_t dot3StatsInternalTransmitUnderflows; /* not in rfc1650! */
u_int32_t dot3StatsInternalTransmitBabbles; /* not in rfc1650! */
/*
* Receive Statistics
*/
u_int32_t dot3StatsMissedFrames; /* not in rfc1650! */
u_int32_t dot3StatsAlignmentErrors;
u_int32_t dot3StatsFCSErrors;
u_int32_t dot3StatsFrameTooLongs;
u_int32_t dot3StatsInternalMacReceiveErrors;
} tulip_dot3_stats_t;
/*
* Now to important stuff. This is softc structure (where does softc
* come from??? No idea) for the tulip device.
*
*/
struct _tulip_softc_t {
#if defined(__bsdi__)
struct device tulip_dev; /* base device */
struct isadev tulip_id; /* ISA device */
struct intrhand tulip_ih; /* intrrupt vectoring */
struct atshutdown tulip_ats; /* shutdown hook */
#if _BSDI_VERSION < 199401
caddr_t tulip_bpf; /* for BPF */
#else
prf_t tulip_pf; /* printf function */
#if _BSDI_VERSION >= 199701
struct mii_data tulip_mii; /* Generic MII and media data */
#define tulip_ifmedia tulip_mii.mii_media
#endif /* _BSDI_VERSION >= 199701 */
#endif /* _BSDI_VERSION < 199401 */
#endif /* __bsdi__ */
#if defined(__NetBSD__)
struct device tulip_dev; /* base device */
void *tulip_ih; /* intrrupt vectoring */
void *tulip_ats; /* shutdown hook */
bus_space_tag_t tulip_bustag;
bus_space_handle_t tulip_bushandle; /* CSR region handle */
pci_chipset_tag_t tulip_pc;
struct ethercom tulip_ec;
u_int8_t tulip_enaddr[ETHER_ADDR_LEN];
#endif
#if !defined(tulip_ifmedia) && defined(IFM_ETHER)
struct ifmedia tulip_ifmedia;
#endif
#if !defined(__NetBSD__)
struct arpcom tulip_ac;
#endif
tulip_regfile_t tulip_csrs;
u_int32_t tulip_flags;
#define TULIP_WANTSETUP 0x00000001
#define TULIP_WANTHASHPERFECT 0x00000002
#define TULIP_WANTHASHONLY 0x00000004
#define TULIP_DOINGSETUP 0x00000008
#define TULIP_PRINTMEDIA 0x00000010
#define TULIP_TXPROBE_ACTIVE 0x00000020
#define TULIP_ALLMULTI 0x00000040
#define TULIP_WANTRXACT 0x00000080
#define TULIP_RXACT 0x00000100
#define TULIP_INRESET 0x00000200
#define TULIP_NEEDRESET 0x00000400
#define TULIP_SQETEST 0x00000800
#define TULIP_xxxxxx0 0x00001000
#define TULIP_xxxxxx1 0x00002000
#define TULIP_WANTTXSTART 0x00004000
#define TULIP_NEWTXTHRESH 0x00008000
#define TULIP_NOAUTOSENSE 0x00010000
#define TULIP_PRINTLINKUP 0x00020000
#define TULIP_LINKUP 0x00040000
#define TULIP_RXBUFSLOW 0x00080000
#define TULIP_NOMESSAGES 0x00100000
#define TULIP_SYSTEMERROR 0x00200000
#define TULIP_TIMEOUTPENDING 0x00400000
#define TULIP_xxxxxx2 0x00800000
#define TULIP_TRYNWAY 0x01000000
#define TULIP_DIDNWAY 0x02000000
#define TULIP_RXIGNORE 0x04000000
#define TULIP_PROBE1STPASS 0x08000000
#define TULIP_DEVICEPROBE 0x10000000
#define TULIP_PROMISC 0x20000000
#define TULIP_HASHONLY 0x40000000
#define TULIP_xxxxxx3 0x80000000
/* only 4 bits left! */
u_int32_t tulip_features; /* static bits indicating features of chip */
#define TULIP_HAVE_GPR 0x00000001 /* have gp register (140[A]) */
#define TULIP_HAVE_RXBADOVRFLW 0x00000002 /* RX corrupts on overflow */
#define TULIP_HAVE_POWERMGMT 0x00000004 /* Snooze/sleep modes */
#define TULIP_HAVE_MII 0x00000008 /* Some medium on MII */
#define TULIP_HAVE_SIANWAY 0x00000010 /* SIA does NWAY */
#define TULIP_HAVE_DUALSENSE 0x00000020 /* SIA senses both AUI & TP */
#define TULIP_HAVE_SIAGP 0x00000040 /* SIA has a GP port */
#define TULIP_HAVE_BROKEN_HASH 0x00000080 /* Broken Multicast Hash */
#define TULIP_HAVE_ISVSROM 0x00000100 /* uses ISV SROM Format */
#define TULIP_HAVE_BASEROM 0x00000200 /* Board ROM can be cloned */
#define TULIP_HAVE_SLAVEDROM 0x00000400 /* Board ROM cloned */
#define TULIP_HAVE_SLAVEDINTR 0x00000800 /* Board slaved interrupt */
#define TULIP_HAVE_SHAREDINTR 0x00001000 /* Board shares interrupts */
#define TULIP_HAVE_OKROM 0x00002000 /* ROM was recognized */
#define TULIP_HAVE_NOMEDIA 0x00004000 /* did not detect any media */
#define TULIP_HAVE_STOREFWD 0x00008000 /* have CMD_STOREFWD */
u_int32_t tulip_intrmask; /* our copy of csr_intr */
u_int32_t tulip_cmdmode; /* our copy of csr_cmdmode */
u_int32_t tulip_last_system_error : 3; /* last system error (only value is TULIP_SYSTEMERROR is also set) */
u_int32_t tulip_txtimer : 2; /* transmission timer */
u_int32_t tulip_system_errors; /* number of system errors encountered */
u_int32_t tulip_statusbits; /* status bits from CSR5 that may need to be printed */
tulip_media_info_t *tulip_mediums[TULIP_MEDIA_MAX]; /* indexes into mediainfo */
tulip_media_t tulip_media; /* current media type */
u_int32_t tulip_abilities; /* remote system's abiltities (as defined in IEEE 802.3u) */
u_int8_t tulip_revinfo; /* revision of chip */
u_int8_t tulip_phyaddr; /* 0..31 -- address of current phy */
u_int8_t tulip_gpinit; /* active pins on 21140 */
u_int8_t tulip_gpdata; /* default gpdata for 21140 */
struct {
u_int8_t probe_count; /* count of probe operations */
int32_t probe_timeout; /* time in ms of probe timeout */
tulip_probe_state_t probe_state; /* current media probe state */
tulip_media_t probe_media; /* current media being probed */
u_int32_t probe_mediamask; /* medias checked */
u_int32_t probe_passes; /* times autosense failed */
u_int32_t probe_txprobes; /* txprobes attempted */
} tulip_probe;
#define tulip_probe_count tulip_probe.probe_count
#define tulip_probe_timeout tulip_probe.probe_timeout
#define tulip_probe_state tulip_probe.probe_state
#define tulip_probe_media tulip_probe.probe_media
#define tulip_probe_mediamask tulip_probe.probe_mediamask
#define tulip_probe_passes tulip_probe.probe_passes
tulip_chipid_t tulip_chipid; /* type of chip we are using */
const tulip_boardsw_t *tulip_boardsw; /* board/chip characteristics */
tulip_softc_t *tulip_slaves; /* slaved devices (ZX3xx) */
#if defined(TULIP_DEBUG)
/*
* Debugging/Statistical information
*/
struct {
tulip_media_t dbg_last_media;
u_int32_t dbg_intrs;
u_int32_t dbg_media_probes;
u_int32_t dbg_txprobe_nocarr;
u_int32_t dbg_txprobe_exccoll;
u_int32_t dbg_link_downed;
u_int32_t dbg_link_suspected;
u_int32_t dbg_link_intrs;
u_int32_t dbg_link_pollintrs;
u_int32_t dbg_link_failures;
u_int32_t dbg_nway_starts;
u_int32_t dbg_nway_failures;
u_int16_t dbg_phyregs[32][4];
u_int32_t dbg_rxlowbufs;
u_int32_t dbg_rxintrs;
u_int32_t dbg_last_rxintrs;
u_int32_t dbg_high_rxintrs_hz;
u_int32_t dbg_txprobes_ok[TULIP_MEDIA_MAX];
u_int32_t dbg_txprobes_failed[TULIP_MEDIA_MAX];
u_int32_t dbg_events[TULIP_MEDIAPOLL_MAX];
u_int32_t dbg_rxpktsperintr[TULIP_RXDESCS];
} tulip_dbg;
#endif
#if defined(TULIP_PERFSTATS)
#define TULIP_PERF_CURRENT 0
#define TULIP_PERF_PREVIOUS 1
#define TULIP_PERF_TOTAL 2
#define TULIP_PERF_MAX 3
struct tulip_perfstats {
u_quad_t perf_intr_cycles;
u_quad_t perf_ifstart_cycles;
u_quad_t perf_ifstart_one_cycles;
u_quad_t perf_ifioctl_cycles;
u_quad_t perf_ifwatchdog_cycles;
u_quad_t perf_timeout_cycles;
u_quad_t perf_txput_cycles;
u_quad_t perf_txintr_cycles;
u_quad_t perf_rxintr_cycles;
u_quad_t perf_rxget_cycles;
unsigned perf_intr;
unsigned perf_ifstart;
unsigned perf_ifstart_one;
unsigned perf_ifioctl;
unsigned perf_ifwatchdog;
unsigned perf_timeout;
unsigned perf_txput;
unsigned perf_txintr;
unsigned perf_rxintr;
unsigned perf_rxget;
} tulip_perfstats[TULIP_PERF_MAX];
#define tulip_curperfstats tulip_perfstats[TULIP_PERF_CURRENT]
#endif
struct ifqueue tulip_txq;
struct ifqueue tulip_rxq;
tulip_dot3_stats_t tulip_dot3stats;
tulip_ringinfo_t tulip_rxinfo;
tulip_ringinfo_t tulip_txinfo;
tulip_media_info_t tulip_mediainfo[10];
/*
* The setup buffers for sending the setup frame to the chip.
* one is the one being sent while the other is the one being
* filled.
*/
u_int32_t tulip_setupbuf[192/sizeof(u_int32_t)];
u_int32_t tulip_setupdata[192/sizeof(u_int32_t)];
char tulip_boardid[16]; /* buffer for board ID */
u_int8_t tulip_rombuf[128];
#if defined(__NetBSD__)
struct device *tulip_pci_busno; /* needed for multiport boards */
#else
u_int8_t tulip_pci_busno; /* needed for multiport boards */
#endif
u_int8_t tulip_pci_devno; /* needed for multiport boards */
u_int8_t tulip_connidx;
tulip_srom_connection_t tulip_conntype;
#if defined(__FreeBSD__)
tulip_desc_t *tulip_rxdescs;
tulip_desc_t *tulip_txdescs;
#else
tulip_desc_t tulip_rxdescs[TULIP_RXDESCS];
tulip_desc_t tulip_txdescs[TULIP_TXDESCS];
#endif
};
#if defined(IFM_ETHER)
#define TULIP_DO_AUTOSENSE(sc) (IFM_SUBTYPE((sc)->tulip_ifmedia.ifm_media) == IFM_AUTO)
#else
#define TULIP_DO_AUTOSENSE(sc) (((sc)->tulip_flags & TULIP_NOAUTOSENSE) == 0)
#endif
#if defined(TULIP_HDR_DATA)
static const char * const tulip_chipdescs[] = {
"21040 [10Mb/s]",
#if defined(TULIP_EISA)
"DE425 [10Mb/s]",
#else
NULL,
#endif
"21041 [10Mb/s]",
"21140 [10-100Mb/s]",
"21140A [10-100Mb/s]",
"21142 [10-100Mb/s]",
"21143 [10-100Mb/s]",
};
static const char * const tulip_mediums[] = {
"unknown", /* TULIP_MEDIA_UNKNOWN */
"10baseT", /* TULIP_MEDIA_10BASET */
"Full Duplex 10baseT", /* TULIP_MEDIA_10BASET_FD */
"BNC", /* TULIP_MEDIA_BNC */
"AUI", /* TULIP_MEDIA_AUI */
"External SIA", /* TULIP_MEDIA_EXTSIA */
"AUI/BNC", /* TULIP_MEDIA_AUIBNC */
"100baseTX", /* TULIP_MEDIA_100BASET */
"Full Duplex 100baseTX", /* TULIP_MEDIA_100BASET_FD */
"100baseT4", /* TULIP_MEDIA_100BASET4 */
"100baseFX", /* TULIP_MEDIA_100BASEFX */
"Full Duplex 100baseFX", /* TULIP_MEDIA_100BASEFX_FD */
};
#if defined(IFM_ETHER)
static const int tulip_media_to_ifmedia[] = {
IFM_ETHER | IFM_NONE, /* TULIP_MEDIA_UNKNOWN */
IFM_ETHER | IFM_10_T, /* TULIP_MEDIA_10BASET */
IFM_ETHER | IFM_10_T | IFM_FDX, /* TULIP_MEDIA_10BASET_FD */
IFM_ETHER | IFM_10_2, /* TULIP_MEDIA_BNC */
IFM_ETHER | IFM_10_5, /* TULIP_MEDIA_AUI */
IFM_ETHER | IFM_MANUAL, /* TULIP_MEDIA_EXTSIA */
IFM_ETHER | IFM_10_5, /* TULIP_MEDIA_AUIBNC */
IFM_ETHER | IFM_100_TX, /* TULIP_MEDIA_100BASET */
IFM_ETHER | IFM_100_TX | IFM_FDX, /* TULIP_MEDIA_100BASET_FD */
IFM_ETHER | IFM_100_T4, /* TULIP_MEDIA_100BASET4 */
IFM_ETHER | IFM_100_FX, /* TULIP_MEDIA_100BASEFX */
IFM_ETHER | IFM_100_FX | IFM_FDX, /* TULIP_MEDIA_100BASEFX_FD */
};
#endif /* defined(IFM_ETHER) */
static const char * const tulip_system_errors[] = {
"parity error",
"master abort",
"target abort",
"reserved #3",
"reserved #4",
"reserved #5",
"reserved #6",
"reserved #7",
};
static const char * const tulip_status_bits[] = {
NULL,
"transmit process stopped",
NULL,
"transmit jabber timeout",
NULL,
"transmit underflow",
NULL,
"receive underflow",
"receive process stopped",
"receive watchdog timeout",
NULL,
NULL,
"link failure",
NULL,
NULL,
};
static const struct {
tulip_srom_connection_t sc_type;
tulip_media_t sc_media;
u_int32_t sc_attrs;
} tulip_srom_conninfo[] = {
{ TULIP_SROM_CONNTYPE_10BASET, TULIP_MEDIA_10BASET },
{ TULIP_SROM_CONNTYPE_BNC, TULIP_MEDIA_BNC },
{ TULIP_SROM_CONNTYPE_AUI, TULIP_MEDIA_AUI },
{ TULIP_SROM_CONNTYPE_100BASETX, TULIP_MEDIA_100BASETX },
{ TULIP_SROM_CONNTYPE_100BASET4, TULIP_MEDIA_100BASET4 },
{ TULIP_SROM_CONNTYPE_100BASEFX, TULIP_MEDIA_100BASEFX },
{ TULIP_SROM_CONNTYPE_MII_10BASET, TULIP_MEDIA_10BASET,
TULIP_SROM_ATTR_MII },
{ TULIP_SROM_CONNTYPE_MII_100BASETX, TULIP_MEDIA_100BASETX,
TULIP_SROM_ATTR_MII },
{ TULIP_SROM_CONNTYPE_MII_100BASET4, TULIP_MEDIA_100BASET4,
TULIP_SROM_ATTR_MII },
{ TULIP_SROM_CONNTYPE_MII_100BASEFX, TULIP_MEDIA_100BASEFX,
TULIP_SROM_ATTR_MII },
{ TULIP_SROM_CONNTYPE_10BASET_NWAY, TULIP_MEDIA_10BASET,
TULIP_SROM_ATTR_NWAY },
{ TULIP_SROM_CONNTYPE_10BASET_FD, TULIP_MEDIA_10BASET_FD },
{ TULIP_SROM_CONNTYPE_MII_10BASET_FD, TULIP_MEDIA_10BASET_FD,
TULIP_SROM_ATTR_MII },
{ TULIP_SROM_CONNTYPE_100BASETX_FD, TULIP_MEDIA_100BASETX_FD },
{ TULIP_SROM_CONNTYPE_MII_100BASETX_FD, TULIP_MEDIA_100BASETX_FD,
TULIP_SROM_ATTR_MII },
{ TULIP_SROM_CONNTYPE_10BASET_NOLINKPASS, TULIP_MEDIA_10BASET,
TULIP_SROM_ATTR_NOLINKPASS },
{ TULIP_SROM_CONNTYPE_AUTOSENSE, TULIP_MEDIA_UNKNOWN,
TULIP_SROM_ATTR_AUTOSENSE },
{ TULIP_SROM_CONNTYPE_AUTOSENSE_POWERUP, TULIP_MEDIA_UNKNOWN,
TULIP_SROM_ATTR_AUTOSENSE|TULIP_SROM_ATTR_POWERUP },
{ TULIP_SROM_CONNTYPE_AUTOSENSE_NWAY, TULIP_MEDIA_UNKNOWN,
TULIP_SROM_ATTR_AUTOSENSE|TULIP_SROM_ATTR_NWAY },
{ TULIP_SROM_CONNTYPE_NOT_USED, TULIP_MEDIA_UNKNOWN }
};
#define TULIP_SROM_LASTCONNIDX \
(sizeof(tulip_srom_conninfo)/sizeof(tulip_srom_conninfo[0]) - 1)
static const struct {
tulip_media_t sm_type;
tulip_srom_media_t sm_srom_type;
} tulip_srom_mediums[] = {
{ TULIP_MEDIA_100BASEFX_FD, TULIP_SROM_MEDIA_100BASEFX_FD },
{ TULIP_MEDIA_100BASEFX, TULIP_SROM_MEDIA_100BASEFX },
{ TULIP_MEDIA_100BASET4, TULIP_SROM_MEDIA_100BASET4 },
{ TULIP_MEDIA_100BASETX_FD, TULIP_SROM_MEDIA_100BASETX_FD },
{ TULIP_MEDIA_100BASETX, TULIP_SROM_MEDIA_100BASETX },
{ TULIP_MEDIA_10BASET_FD, TULIP_SROM_MEDIA_10BASET_FD },
{ TULIP_MEDIA_AUI, TULIP_SROM_MEDIA_AUI },
{ TULIP_MEDIA_BNC, TULIP_SROM_MEDIA_BNC },
{ TULIP_MEDIA_10BASET, TULIP_SROM_MEDIA_10BASET },
{ TULIP_MEDIA_UNKNOWN }
};
#endif /* TULIP_HDR_DATA */
/*
* This driver supports a maximum of 32 tulip boards.
* This should be enough for the forseeable future.
*/
#define TULIP_MAX_DEVICES 32
#if defined(TULIP_USE_SOFTINTR) && defined(TULIP_HDR_DATA)
static u_int32_t tulip_softintr_mask;
static int tulip_softintr_last_unit;
static int tulip_softintr_max_unit;
static void tulip_softintr(void);
#endif
#ifdef notyet
#define SIOCGADDRROM _IOW('i', 240, struct ifreq) /* get 128 bytes of ROM */
#define SIOCGCHIPID _IOWR('i', 241, struct ifreq) /* get chipid */
#endif
#if defined(__FreeBSD__)
typedef void ifnet_ret_t;
typedef int ioctl_cmd_t;
#if defined(TULIP_HDR_DATA)
static tulip_softc_t *tulips[TULIP_MAX_DEVICES];
#endif
#if BSD >= 199506
#define TULIP_IFP_TO_SOFTC(ifp) ((tulip_softc_t *)((ifp)->if_softc))
#if NBPFILTER > 0
#define TULIP_BPF_MTAP(sc, m) bpf_mtap(&(sc)->tulip_if, m)
#define TULIP_BPF_TAP(sc, p, l) bpf_tap(&(sc)->tulip_if, p, l)
#define TULIP_BPF_ATTACH(sc) bpfattach(&(sc)->tulip_if, DLT_EN10MB, sizeof(struct ether_header))
#endif
#define tulip_intrfunc_t void
#define TULIP_VOID_INTRFUNC
#define IFF_NOTRAILERS 0
#define CLBYTES PAGE_SIZE
#if 0
#define TULIP_KVATOPHYS(sc, va) kvtop(va)
#endif
#define TULIP_EADDR_FMT "%6D"
#define TULIP_EADDR_ARGS(addr) addr, ":"
#else
extern int bootverbose;
#define TULIP_IFP_TO_SOFTC(ifp) (TULIP_UNIT_TO_SOFTC((ifp)->if_unit))
#include <sys/devconf.h>
#define TULIP_DEVCONF
#endif
#if defined(TULIP_USE_SOFTINTR)
NETISR_SET(NETISR_DE, tulip_softintr);
#endif
#define TULIP_UNIT_TO_SOFTC(unit) (tulips[unit])
#define TULIP_BURSTSIZE(unit) pci_max_burst_len
#define loudprintf if (bootverbose) printf
#endif
#if defined(__bsdi__)
typedef int ifnet_ret_t;
typedef u_long ioctl_cmd_t;
extern struct cfdriver decd;
#define TULIP_UNIT_TO_SOFTC(unit) ((tulip_softc_t *) decd.cd_devs[unit])
#define TULIP_IFP_TO_SOFTC(ifp) (TULIP_UNIT_TO_SOFTC((ifp)->if_unit))
#define TULIP_ETHER_IFATTACH(sc) ether_attach(&(sc)->tulip_if)
#if _BSDI_VERSION >= 199510
#if 0
#define TULIP_BURSTSIZE(unit) log2_burst_size
#endif
#define loudprintf aprint_verbose
#define printf (*sc->tulip_pf)
#define MCNT(x) (sizeof(x) / sizeof(struct ifmedia_entry))
#elif _BSDI_VERSION <= 199401
#define DRQNONE 0
#define loudprintf printf
static void
arp_ifinit(
struct arpcom *ac,
struct ifaddr *ifa)
{
ac->ac_ipaddr = IA_SIN(ifa)->sin_addr;
arpwhohas(ac, &ac->ac_ipaddr);
}
#endif
#endif /* __bsdi__ */
#if defined(__NetBSD__)
typedef void ifnet_ret_t;
typedef u_long ioctl_cmd_t;
extern struct cfattach de_ca;
extern struct cfdriver de_cd;
#define TULIP_UNIT_TO_SOFTC(unit) ((tulip_softc_t *) de_cd.cd_devs[unit])
#define TULIP_IFP_TO_SOFTC(ifp) ((tulip_softc_t *)((ifp)->if_softc))
#define tulip_unit tulip_dev.dv_unit
#define tulip_xname tulip_if.if_xname
#define TULIP_RAISESPL() splnet()
#define TULIP_RAISESOFTSPL() splsoftnet()
#define TULIP_RESTORESPL(s) splx(s)
#define tulip_if tulip_ec.ec_if
#define tulip_enaddr tulip_enaddr
#define tulip_multicnt tulip_ec.ec_multicnt
#define TULIP_ETHERCOM(sc) (&(sc)->tulip_ec)
#define TULIP_ARP_IFINIT(sc, ifa) arp_ifinit(&(sc)->tulip_if, (ifa))
#define TULIP_ETHER_IFATTACH(sc) ether_ifattach(&(sc)->tulip_if, (sc)->tulip_enaddr)
#define loudprintf printf
#define TULIP_PRINTF_FMT "%s"
#define TULIP_PRINTF_ARGS sc->tulip_xname
#if defined(__alpha__)
/* XXX XXX NEED REAL DMA MAPPING SUPPORT XXX XXX */
#define TULIP_KVATOPHYS(sc, va) alpha_XXX_dmamap((vm_offset_t)(va))
#endif
#endif /* __NetBSD__ */
#ifndef TULIP_PRINTF_FMT
#define TULIP_PRINTF_FMT "%s%d"
#endif
#ifndef TULIP_PRINTF_ARGS
#define TULIP_PRINTF_ARGS sc->tulip_name, sc->tulip_unit
#endif
#ifndef TULIP_BURSTSIZE
#define TULIP_BURSTSIZE(unit) 3
#endif
#ifndef tulip_if
#define tulip_if tulip_ac.ac_if
#endif
#ifndef tulip_unit
#define tulip_unit tulip_if.if_unit
#endif
#define tulip_name tulip_if.if_name
#ifndef tulip_enaddr
#define tulip_enaddr tulip_ac.ac_enaddr
#endif
#ifndef tulip_multicnt
#define tulip_multicnt tulip_ac.ac_multicnt
#endif
#if !defined(TULIP_ETHERCOM)
#define TULIP_ETHERCOM(sc) (&(sc)->tulip_ac)
#endif
#if !defined(TULIP_ARP_IFINIT)
#define TULIP_ARP_IFINIT(sc, ifa) arp_ifinit(TULIP_ETHERCOM(sc), (ifa))
#endif
#if !defined(TULIP_ETHER_IFATTACH)
#define TULIP_ETHER_IFATTACH(sc) ether_ifattach(&(sc)->tulip_if)
#endif
#if !defined(tulip_bpf) && (!defined(__bsdi__) || _BSDI_VERSION >= 199401)
#define tulip_bpf tulip_if.if_bpf
#endif
#if !defined(tulip_intrfunc_t)
#define tulip_intrfunc_t int
#endif
#if !defined(TULIP_KVATOPHYS)
#define TULIP_KVATOPHYS(sc, va) vtophys(va)
#endif
#ifndef TULIP_RAISESPL
#define TULIP_RAISESPL() splimp()
#endif
#ifndef TULIP_RAISESOFTSPL
#define TULIP_RAISESOFTSPL() splnet()
#endif
#ifndef TULUP_RESTORESPL
#define TULIP_RESTORESPL(s) splx(s)
#endif
/*
* While I think FreeBSD's 2.2 change to the bpf is a nice simplification,
* it does add yet more conditional code to this driver. Sigh.
*/
#if !defined(TULIP_BPF_MTAP) && NBPFILTER > 0
#define TULIP_BPF_MTAP(sc, m) bpf_mtap((sc)->tulip_bpf, m)
#define TULIP_BPF_TAP(sc, p, l) bpf_tap((sc)->tulip_bpf, p, l)
#define TULIP_BPF_ATTACH(sc) bpfattach(&(sc)->tulip_bpf, &(sc)->tulip_if, DLT_EN10MB, sizeof(struct ether_header))
#endif
#if defined(TULIP_PERFSTATS)
#define TULIP_PERFMERGE(sc, member) \
do { (sc)->tulip_perfstats[TULIP_PERF_TOTAL].member \
+= (sc)->tulip_perfstats[TULIP_PERF_CURRENT].member; \
(sc)->tulip_perfstats[TULIP_PERF_PREVIOUS].member \
= (sc)->tulip_perfstats[TULIP_PERF_CURRENT].member; \
(sc)->tulip_perfstats[TULIP_PERF_CURRENT].member = 0; } while (0)
#define TULIP_PERFSTART(name) const tulip_cycle_t perfstart_ ## name = TULIP_PERFREAD();
#define TULIP_PERFEND(name) do { \
(sc)->tulip_curperfstats.perf_ ## name ## _cycles += TULIP_PERFDIFF(perfstart_ ## name, TULIP_PERFREAD()); \
(sc)->tulip_curperfstats.perf_ ## name ++; \
} while (0)
#if defined(__i386__)
typedef u_quad_t tulip_cycle_t;
static __inline__ tulip_cycle_t
TULIP_PERFREAD(
void)
{
tulip_cycle_t x;
__asm__ volatile (".byte 0x0f, 0x31" : "=A" (x));
return x;
}
#define TULIP_PERFDIFF(s, f) ((f) - (s))
#elif defined(__alpha__)
typedef unsigned long tulip_cycle_t;
static __inline__ tulip_cycle_t
TULIP_PERFREAD(
void)
{
tulip_cycle_t x;
__asm__ volatile ("rpcc %0" : "=r" (x));
return x;
}
#define TULIP_PERFDIFF(s, f) ((unsigned int) ((f) - (s)))
#endif
#else
#define TULIP_PERFSTART(name)
#define TULIP_PERFEND(name) do { } while (0)
#define TULIP_PERFMERGE(s,n) do { } while (0)
#endif /* TULIP_PERFSTATS */
/*
* However, this change to FreeBSD I am much less enamored with.
*/
#if !defined(TULIP_EADDR_FMT)
#define TULIP_EADDR_FMT "%s"
#define TULIP_EADDR_ARGS(addr) ether_sprintf(addr)
#endif
#define TULIP_CRC32_POLY 0xEDB88320UL /* CRC-32 Poly -- Little Endian */
#define TULIP_MAX_TXSEG 30
#define TULIP_ADDREQUAL(a1, a2) \
(((u_int16_t *)a1)[0] == ((u_int16_t *)a2)[0] \
&& ((u_int16_t *)a1)[1] == ((u_int16_t *)a2)[1] \
&& ((u_int16_t *)a1)[2] == ((u_int16_t *)a2)[2])
#define TULIP_ADDRBRDCST(a1) \
(((u_int16_t *)a1)[0] == 0xFFFFU \
&& ((u_int16_t *)a1)[1] == 0xFFFFU \
&& ((u_int16_t *)a1)[2] == 0xFFFFU)
typedef int tulip_spl_t;
#endif /* !defined(_DEVAR_H) */