The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/pci/if_devar.h

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    1 /*      $NetBSD: if_devar.h,v 1.32 1999/04/01 14:55:25 tsubai Exp $     */
    2 
    3 /* $FreeBSD: releng/6.2/sys/pci/if_devar.h 152429 2005-11-14 19:29:56Z jhb $ */
    4 
    5 /*-
    6  * Copyright (c) 1994-1997 Matt Thomas (matt@3am-software.com)
    7  * All rights reserved.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions and the following disclaimer.
   14  * 2. The name of the author may not be used to endorse or promote products
   15  *    derived from this software without specific prior written permission
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   27  *
   28  * Id: if_devar.h,v 1.28 1997/07/03 16:55:07 thomas Exp
   29  */
   30 
   31 #ifndef _DEVAR_H
   32 #define _DEVAR_H
   33 
   34 typedef bus_addr_t tulip_csrptr_t;
   35 
   36 #define TULIP_PCI_CSRSIZE       8
   37 #define TULIP_PCI_CSROFFSET     0
   38 
   39 #define TULIP_CSR_READ(sc, csr)                 \
   40         bus_space_read_4((sc)->tulip_csrs_bst,  \
   41                          (sc)->tulip_csrs_bsh,  \
   42                          (sc)->tulip_csrs.csr)
   43 #define TULIP_CSR_WRITE(sc, csr, val)                   \
   44         bus_space_write_4((sc)->tulip_csrs_bst,         \
   45                           (sc)->tulip_csrs_bsh,         \
   46                           (sc)->tulip_csrs.csr, val)
   47 
   48 /*
   49  * This structure contains "pointers" for the registers on
   50  * the various 21x4x chips.  CSR0 through CSR8 are common
   51  * to all chips.  After that, it gets messy...
   52  */
   53 typedef struct {
   54         tulip_csrptr_t  csr_busmode;    /* CSR0 */
   55         tulip_csrptr_t  csr_txpoll;     /* CSR1 */
   56         tulip_csrptr_t  csr_rxpoll;     /* CSR2 */
   57         tulip_csrptr_t  csr_rxlist;     /* CSR3 */
   58         tulip_csrptr_t  csr_txlist;     /* CSR4 */
   59         tulip_csrptr_t  csr_status;     /* CSR5 */
   60         tulip_csrptr_t  csr_command;    /* CSR6 */
   61         tulip_csrptr_t  csr_intr;       /* CSR7 */
   62         tulip_csrptr_t  csr_missed_frames;      /* CSR8 */
   63         tulip_csrptr_t  csr_9;          /* CSR9 */
   64         tulip_csrptr_t  csr_10;         /* CSR10 */
   65         tulip_csrptr_t  csr_11;         /* CSR11 */
   66         tulip_csrptr_t  csr_12;         /* CSR12 */
   67         tulip_csrptr_t  csr_13;         /* CSR13 */
   68         tulip_csrptr_t  csr_14;         /* CSR14 */
   69         tulip_csrptr_t  csr_15;         /* CSR15 */
   70 } tulip_regfile_t;
   71 
   72 #define csr_enetrom             csr_9   /* 21040 */
   73 #define csr_reserved            csr_10  /* 21040 */
   74 #define csr_full_duplex         csr_11  /* 21040 */
   75 #define csr_bootrom             csr_10  /* 21041/21140A/?? */
   76 #define csr_gp                  csr_12  /* 21140* */
   77 #define csr_watchdog            csr_15  /* 21140* */
   78 #define csr_gp_timer            csr_11  /* 21041/21140* */
   79 #define csr_srom_mii            csr_9   /* 21041/21140* */
   80 #define csr_sia_status          csr_12  /* 2104x */
   81 #define csr_sia_connectivity    csr_13  /* 2104x */
   82 #define csr_sia_tx_rx           csr_14  /* 2104x */
   83 #define csr_sia_general         csr_15  /* 2104x */
   84 
   85 /*
   86  * While 21x4x allows chaining of its descriptors, this driver
   87  * doesn't take advantage of it.  We keep the descriptors in a
   88  * traditional FIFO ring.
   89  */
   90 typedef struct {
   91         tulip_desc_t    *di_desc;
   92         struct mbuf     *di_mbuf;
   93         bus_dmamap_t    *di_map;
   94 } tulip_descinfo_t;
   95 
   96 typedef struct {
   97         tulip_descinfo_t *ri_first;     /* first entry in ring */
   98         tulip_descinfo_t *ri_last;      /* one after last entry */
   99         tulip_descinfo_t *ri_nextin;    /* next to processed by host */
  100         tulip_descinfo_t *ri_nextout;   /* next to processed by adapter */
  101         int             ri_max;
  102         int             ri_free;
  103         tulip_desc_t    *ri_descs;
  104         tulip_descinfo_t *ri_descinfo;
  105         bus_dma_tag_t   ri_ring_tag;
  106         bus_dmamap_t    ri_ring_map;
  107         uint32_t        ri_dma_addr;
  108         bus_dma_tag_t   ri_data_tag;
  109         bus_dmamap_t    *ri_data_maps;
  110 } tulip_ringinfo_t;
  111 
  112 /*
  113  * The 21040 has a stupid restriction in that the receive
  114  * buffers must be longword aligned.  But since Ethernet
  115  * headers are not a multiple of longwords in size this forces
  116  * the data to non-longword aligned.  Since IP requires the
  117  * data to be longword aligned, we need to copy it after it has
  118  * been DMA'ed in our memory.
  119  *
  120  * Since we have to copy it anyways, we might as well as allocate
  121  * dedicated receive space for the input.  This allows to use a
  122  * small receive buffer size and more ring entries to be able to
  123  * better keep with a flood of tiny Ethernet packets.
  124  *
  125  * The receive space MUST ALWAYS be a multiple of the page size.
  126  * And the number of receive descriptors multiplied by the size
  127  * of the receive buffers must equal the receive space.  This
  128  * is so that we can manipulate the page tables so that even if a
  129  * packet wraps around the end of the receive space, we can
  130  * treat it as virtually contiguous.
  131  *
  132  * The above used to be true (the stupid restriction is still true)
  133  * but we gone to directly DMA'ing into MBUFs (unless it's on an
  134  * architecture which can't handle unaligned accesses) because with
  135  * 100Mb/s cards the copying is just too much of a hit.
  136  */
  137 #if !defined(__i386__)
  138 #define TULIP_COPY_RXDATA       1
  139 #endif
  140 
  141 #define TULIP_DATA_PER_DESC     2032
  142 #define TULIP_TXTIMER           4
  143 #define TULIP_RXDESCS           48
  144 #define TULIP_TXDESCS           128
  145 #define TULIP_RXQ_TARGET        32
  146 #if TULIP_RXQ_TARGET >= TULIP_RXDESCS
  147 #error  TULIP_RXQ_TARGET must be less than TULIP_RXDESCS
  148 #endif
  149 #define TULIP_RX_BUFLEN         ((MCLBYTES < 2048 ? MCLBYTES : 2048) - 16)
  150 
  151 /*
  152  * Forward reference to make C happy.
  153  */
  154 typedef struct tulip_softc      tulip_softc_t;
  155 
  156 /*
  157  * Enumeration of the various controllers supported.
  158  */
  159 typedef enum {
  160         TULIP_21040,
  161         TULIP_21041,
  162         TULIP_21140,
  163         TULIP_21140A,
  164         TULIP_21142,
  165         TULIP_21143,
  166         TULIP_CHIPID_UNKNOWN
  167 } tulip_chipid_t;
  168 
  169 /*
  170  * Various physical media types supported.
  171  * BNCAUI is BNC or AUI since on the 21040 you can't really tell
  172  * which is in use.
  173  */
  174 typedef enum {
  175         TULIP_MEDIA_UNKNOWN,
  176         TULIP_MEDIA_10BASET,
  177         TULIP_MEDIA_10BASET_FD,
  178         TULIP_MEDIA_BNC,
  179         TULIP_MEDIA_AUI,
  180         TULIP_MEDIA_EXTSIA,
  181         TULIP_MEDIA_AUIBNC,
  182         TULIP_MEDIA_100BASETX,
  183         TULIP_MEDIA_100BASETX_FD,
  184         TULIP_MEDIA_100BASET4,
  185         TULIP_MEDIA_100BASEFX,
  186         TULIP_MEDIA_100BASEFX_FD,
  187         TULIP_MEDIA_MAX
  188 } tulip_media_t;
  189 
  190 #define TULIP_BIT(b)            (1L << ((int)(b)))
  191 #define TULIP_FDBIT(m)          (1L << ((int)TULIP_MEDIA_ ## m ## _FD))
  192 #define TULIP_MBIT(m)           (1L << ((int)TULIP_MEDIA_ ## m ))
  193 #define TULIP_IS_MEDIA_FD(m)    (TULIP_BIT(m) & \
  194                                  (TULIP_FDBIT(10BASET) | \
  195                                   TULIP_FDBIT(100BASETX) | \
  196                                   TULIP_FDBIT(100BASEFX)))
  197 #define TULIP_CAN_MEDIA_FD(m)   (TULIP_BIT(m) & \
  198                                  (TULIP_MBIT(10BASET) | \
  199                                   TULIP_MBIT(100BASETX) | \
  200                                   TULIP_MBIT(100BASEFX)))
  201 #define TULIP_FD_MEDIA_OF(m)    ((tulip_media_t)((m) + 1))
  202 #define TULIP_HD_MEDIA_OF(m)    ((tulip_media_t)((m) - 1))
  203 #define TULIP_IS_MEDIA_100MB(m) ((m) >= TULIP_MEDIA_100BASETX)
  204 #define TULIP_IS_MEDIA_TP(m)    ((TULIP_BIT(m) & \
  205                                   (TULIP_MBIT(BNC) | \
  206                                    TULIP_MBIT(AUI) | \
  207                                    TULIP_MBIT(AUIBNC) | \
  208                                    TULIP_MBIT(EXTSIA))) == 0)
  209 
  210 #define TULIP_SROM_ATTR_MII             0x0100
  211 #define TULIP_SROM_ATTR_NWAY            0x0200
  212 #define TULIP_SROM_ATTR_AUTOSENSE       0x0400
  213 #define TULIP_SROM_ATTR_POWERUP         0x0800
  214 #define TULIP_SROM_ATTR_NOLINKPASS      0x1000
  215 
  216 typedef struct {
  217         enum {
  218                 TULIP_MEDIAINFO_NONE,
  219                 TULIP_MEDIAINFO_SIA,
  220                 TULIP_MEDIAINFO_GPR,
  221                 TULIP_MEDIAINFO_MII,
  222                 TULIP_MEDIAINFO_RESET,
  223                 TULIP_MEDIAINFO_SYM
  224         } mi_type;
  225         union {
  226                 struct {
  227                         u_int16_t sia_connectivity;
  228                         u_int16_t sia_tx_rx;
  229                         u_int16_t sia_general;
  230                         u_int32_t sia_gp_control;       /* 21142/21143 */
  231                         u_int32_t sia_gp_data;          /* 21142/21143 */
  232                 } un_sia;
  233                 struct {
  234                         u_int32_t gpr_cmdmode;
  235                         u_int32_t gpr_gpcontrol;        /* 21142/21143 */
  236                         u_int32_t gpr_gpdata;
  237                         u_int8_t gpr_actmask;
  238                         u_int8_t gpr_actdata;
  239                         u_int gpr_default:1;
  240                 } un_gpr;
  241                 struct {
  242                         u_int32_t mii_mediamask;
  243                         u_int16_t mii_capabilities;
  244                         u_int16_t mii_advertisement;
  245                         u_int16_t mii_full_duplex;
  246                         u_int16_t mii_tx_threshold;
  247                         u_int16_t mii_interrupt;        /* 21142/21143 */
  248                         u_int8_t mii_phyaddr;
  249                         u_int8_t mii_gpr_length;
  250                         u_int8_t mii_gpr_offset;
  251                         u_int8_t mii_reset_length;
  252                         u_int8_t mii_reset_offset;
  253                         u_int32_t mii_phyid;
  254                 } un_mii;
  255         } mi_un;
  256 } tulip_media_info_t;
  257 
  258 #define mi_sia_connectivity     mi_un.un_sia.sia_connectivity
  259 #define mi_sia_tx_rx            mi_un.un_sia.sia_tx_rx
  260 #define mi_sia_general          mi_un.un_sia.sia_general
  261 #define mi_sia_gp_control       mi_un.un_sia.sia_gp_control
  262 #define mi_sia_gp_data          mi_un.un_sia.sia_gp_data
  263 
  264 #define mi_gpcontrol            mi_un.un_gpr.gpr_gpcontrol
  265 #define mi_gpdata               mi_un.un_gpr.gpr_gpdata
  266 #define mi_actmask              mi_un.un_gpr.gpr_actmask
  267 #define mi_actdata              mi_un.un_gpr.gpr_actdata
  268 #define mi_default              mi_un.un_gpr.gpr_default
  269 #define mi_cmdmode              mi_un.un_gpr.gpr_cmdmode
  270 
  271 #define mi_phyaddr              mi_un.un_mii.mii_phyaddr
  272 #define mi_gpr_length           mi_un.un_mii.mii_gpr_length
  273 #define mi_gpr_offset           mi_un.un_mii.mii_gpr_offset
  274 #define mi_reset_length         mi_un.un_mii.mii_reset_length
  275 #define mi_reset_offset         mi_un.un_mii.mii_reset_offset
  276 #define mi_capabilities         mi_un.un_mii.mii_capabilities
  277 #define mi_advertisement        mi_un.un_mii.mii_advertisement
  278 #define mi_full_duplex          mi_un.un_mii.mii_full_duplex
  279 #define mi_tx_threshold         mi_un.un_mii.mii_tx_threshold
  280 #define mi_mediamask            mi_un.un_mii.mii_mediamask
  281 #define mi_mii_interrupt        mi_un.un_mii.mii_interrupt
  282 #define mi_phyid                mi_un.un_mii.mii_phyid
  283 
  284 #define TULIP_MEDIAINFO_SIA_INIT(sc, mi, chipid, media) do {            \
  285         (mi)->mi_type = TULIP_MEDIAINFO_SIA;                            \
  286         sc->tulip_mediums[TULIP_MEDIA_ ## media] = (mi);                \
  287         (mi)->mi_sia_connectivity = TULIP_ ## chipid ## _SIACONN_ ## media; \
  288         (mi)->mi_sia_tx_rx = TULIP_ ## chipid ## _SIATXRX_ ## media;    \
  289         (mi)->mi_sia_general = TULIP_ ## chipid ## _SIAGEN_ ## media;   \
  290 } while (0)
  291 
  292 #define TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, media) do {              \
  293         if ((sc)->tulip_mediums[TULIP_MEDIA_ ## media] == NULL          \
  294             && ((mi)->mi_capabilities & PHYSTS_ ## media)) {            \
  295                 (sc)->tulip_mediums[TULIP_MEDIA_ ## media] = (mi);      \
  296                 (mi)->mi_mediamask |= TULIP_BIT(TULIP_MEDIA_ ## media); \
  297         }                                                               \
  298 } while (0)
  299 
  300 #define TULIP_MII_NOPHY         32
  301 /*
  302  * Some boards need to treated specially.  The following enumeration
  303  * identifies the cards with quirks (or those we just want to single
  304  * out for special merit or scorn).
  305  */
  306 typedef enum {
  307         TULIP_21040_GENERIC,    /* Generic 21040 (works with most any board) */
  308         TULIP_21140_ISV,        /* Digital Semicondutor 21140 ISV SROM Format */
  309         TULIP_21142_ISV,        /* Digital Semicondutor 21142 ISV SROM Format */
  310         TULIP_21143_ISV,        /* Digital Semicondutor 21143 ISV SROM Format */
  311         TULIP_21140_DEC_EB,     /* Digital Semicondutor 21140 Eval. Board */
  312         TULIP_21140_MII,        /* 21140[A] with MII */
  313         TULIP_21140_DEC_DE500,  /* Digital DE500-?? 10/100 */
  314         TULIP_21140_SMC_9332,   /* SMC 9332 */
  315         TULIP_21140_COGENT_EM100,       /* Cogent EM100 100 only */
  316         TULIP_21140_ZNYX_ZX34X, /* ZNYX ZX342 10/100 */
  317         TULIP_21140_ASANTE,     /* AsanteFast 10/100 */
  318         TULIP_21140_EN1207,     /* Accton EN2107 10/100 BNC */
  319         TULIP_21041_GENERIC     /* Generic 21041 card */
  320 } tulip_board_t;
  321 
  322 typedef enum {
  323         TULIP_MEDIAPOLL_TIMER,          /* 100ms timer fired */
  324         TULIP_MEDIAPOLL_FASTTIMER,      /* <100ms timer fired */
  325         TULIP_MEDIAPOLL_LINKFAIL,       /* called from interrupt routine */
  326         TULIP_MEDIAPOLL_LINKPASS,       /* called from interrupt routine */
  327         TULIP_MEDIAPOLL_START,          /* start a media probe (from reset) */
  328         TULIP_MEDIAPOLL_TXPROBE_OK,     /* txprobe succeeded */
  329         TULIP_MEDIAPOLL_TXPROBE_FAILED, /* txprobe failed */
  330         TULIP_MEDIAPOLL_MAX
  331 } tulip_mediapoll_event_t;
  332 
  333 typedef enum {
  334         TULIP_LINK_DOWN,        /* Link is down */
  335         TULIP_LINK_UP,          /* link is ok */
  336         TULIP_LINK_UNKNOWN      /* we can't tell either way */
  337 } tulip_link_status_t;
  338 
  339 /*
  340  * This data structure is used to abstract out the quirks.
  341  * media_probe  = tries to determine the media type.
  342  * media_select = enables the current media (or autosenses)
  343  * media_poll   = autosenses media
  344  * media_preset = 21140, etal requires bit to set before the
  345  *                the software reset; hence pre-set.  Should be
  346  *                pre-reset but that's ugly.
  347  */
  348 typedef struct {
  349         tulip_board_t bd_type;
  350         void (*bd_media_probe)(tulip_softc_t * const sc);
  351         void (*bd_media_select)(tulip_softc_t * const sc);
  352         void (*bd_media_poll)(tulip_softc_t * const sc,
  353     tulip_mediapoll_event_t event);
  354         void (*bd_media_preset) (tulip_softc_t * const sc);
  355 } tulip_boardsw_t;
  356 
  357 /*
  358  * The next few declarations are for MII/PHY based boards.
  359  *
  360  *    The first enumeration identifies a superset of various datums
  361  * that can be obtained from various PHY chips.  Not all PHYs will
  362  * support all datums.
  363  *    The modedata structure indicates what register contains
  364  * a datum, what mask is applied the register contents, and what the
  365  * result should be.
  366  *    The attr structure records information about a supported PHY.
  367  *    The phy structure records information about a PHY instance.
  368  */
  369 typedef enum {
  370         PHY_MODE_10T,
  371         PHY_MODE_100TX,
  372         PHY_MODE_100T4,
  373         PHY_MODE_FULLDUPLEX,
  374         PHY_MODE_MAX
  375 } tulip_phy_mode_t;
  376 
  377 typedef struct {
  378         u_int16_t       pm_regno;
  379         u_int16_t       pm_mask;
  380         u_int16_t       pm_value;
  381 } tulip_phy_modedata_t;
  382 
  383 typedef struct {
  384         u_int32_t       attr_id;
  385         u_int16_t       attr_flags;
  386         tulip_phy_modedata_t    attr_modes[PHY_MODE_MAX];
  387 #ifdef TULIP_DEBUG
  388         const char      *attr_name;
  389 #endif
  390 } tulip_phy_attr_t;
  391 
  392 /* Definitions for tulip_phy_attr_t.attr_flags */
  393 #define PHY_NEED_HARD_RESET     0x0001
  394 #define PHY_DUAL_CYCLE_TA       0x0002
  395 
  396 /*
  397  * Various probe states used when trying to autosense the media.
  398  */
  399 typedef enum {
  400         TULIP_PROBE_INACTIVE,
  401         TULIP_PROBE_PHYRESET,
  402         TULIP_PROBE_PHYAUTONEG,
  403         TULIP_PROBE_GPRTEST,
  404         TULIP_PROBE_MEDIATEST,
  405         TULIP_PROBE_FAILED
  406 } tulip_probe_state_t;
  407 
  408 typedef struct {
  409         /*
  410          * Transmit Statistics
  411          */
  412         u_int32_t       dot3StatsSingleCollisionFrames;
  413         u_int32_t       dot3StatsMultipleCollisionFrames;
  414         u_int32_t       dot3StatsSQETestErrors;
  415         u_int32_t       dot3StatsDeferredTransmissions;
  416         u_int32_t       dot3StatsLateCollisions;
  417         u_int32_t       dot3StatsExcessiveCollisions;
  418         u_int32_t       dot3StatsCarrierSenseErrors;
  419         u_int32_t       dot3StatsInternalMacTransmitErrors;
  420         /* not in rfc1650! */
  421         u_int32_t       dot3StatsInternalTransmitUnderflows;
  422         /* not in rfc1650! */
  423         u_int32_t       dot3StatsInternalTransmitBabbles;
  424         /*
  425          * Receive Statistics
  426          */
  427         u_int32_t       dot3StatsMissedFrames;  /* not in rfc1650! */
  428         u_int32_t       dot3StatsAlignmentErrors;
  429         u_int32_t       dot3StatsFCSErrors;
  430         u_int32_t       dot3StatsFrameTooLongs;
  431         u_int32_t       dot3StatsInternalMacReceiveErrors;
  432 } tulip_dot3_stats_t;
  433 
  434 /*
  435  * Probe information.
  436  */
  437 struct tulip_probe_info {
  438         u_int8_t        probe_count;            /* count of probe operations */
  439         int32_t         probe_timeout;          /* time (ms) of probe timeout */
  440         tulip_probe_state_t     probe_state;    /* current media probe state */
  441         tulip_media_t   probe_media;            /* current media being probed */
  442         u_int32_t       probe_mediamask;        /* medias checked */
  443         u_int32_t       probe_passes;           /* times autosense failed */
  444         u_int32_t       probe_txprobes;         /* txprobes attempted */
  445 };
  446 
  447 /*
  448  * Debugging/Statistical information.
  449  */
  450 struct tulip_dbg_info {
  451         tulip_media_t   dbg_last_media;
  452         u_int32_t       dbg_intrs;
  453         u_int32_t       dbg_media_probes;
  454         u_int32_t       dbg_txprobe_nocarr;
  455         u_int32_t       dbg_txprobe_exccoll;
  456         u_int32_t       dbg_link_downed;
  457         u_int32_t       dbg_link_suspected;
  458         u_int32_t       dbg_link_intrs;
  459         u_int32_t       dbg_link_pollintrs;
  460         u_int32_t       dbg_link_failures;
  461         u_int32_t       dbg_nway_starts;
  462         u_int32_t       dbg_nway_failures;
  463         u_int16_t       dbg_phyregs[32][4];
  464         u_int32_t       dbg_rxlowbufs;
  465         u_int32_t       dbg_rxintrs;
  466         u_int32_t       dbg_last_rxintrs;
  467         u_int32_t       dbg_high_rxintrs_hz;
  468         u_int32_t       dbg_no_txmaps;
  469         u_int32_t       dbg_txput_finishes[8];
  470         u_int32_t       dbg_txprobes_ok[TULIP_MEDIA_MAX];
  471         u_int32_t       dbg_txprobes_failed[TULIP_MEDIA_MAX];
  472         u_int32_t       dbg_events[TULIP_MEDIAPOLL_MAX];
  473         u_int32_t       dbg_rxpktsperintr[TULIP_RXDESCS];
  474 };
  475 
  476 /*
  477  * Performance statistics.
  478  */
  479 struct tulip_perfstat {
  480         u_quad_t        perf_intr_cycles;
  481         u_quad_t        perf_ifstart_cycles;
  482         u_quad_t        perf_ifstart_one_cycles;
  483         u_quad_t        perf_ifioctl_cycles;
  484         u_quad_t        perf_ifwatchdog_cycles;
  485         u_quad_t        perf_timeout_cycles;
  486         u_quad_t        perf_txput_cycles;
  487         u_quad_t        perf_txintr_cycles;
  488         u_quad_t        perf_rxintr_cycles;
  489         u_quad_t        perf_rxget_cycles;
  490         unsigned int    perf_intr;
  491         unsigned int    perf_ifstart;
  492         unsigned int    perf_ifstart_one;
  493         unsigned int    perf_ifioctl;
  494         unsigned int    perf_ifwatchdog;
  495         unsigned int    perf_timeout;
  496         unsigned int    perf_txput;
  497         unsigned int    perf_txintr;
  498         unsigned int    perf_rxintr;
  499         unsigned int    perf_rxget;
  500 };
  501 #define TULIP_PERF_CURRENT      0
  502 #define TULIP_PERF_PREVIOUS     1
  503 #define TULIP_PERF_TOTAL        2
  504 #define TULIP_PERF_MAX          3
  505 
  506 /*
  507  * Per-driver-instance state.
  508  */
  509 struct tulip_softc {
  510         struct ifmedia          tulip_ifmedia;
  511         int                     tulip_unit;
  512         struct ifnet            *tulip_ifp;
  513         u_char                  tulip_enaddr[6];
  514         bus_space_tag_t         tulip_csrs_bst;
  515         bus_space_handle_t      tulip_csrs_bsh;
  516         tulip_regfile_t         tulip_csrs;
  517 
  518         u_int32_t               tulip_flags;
  519         u_int32_t               tulip_features;
  520         u_int32_t               tulip_intrmask;
  521         u_int32_t               tulip_cmdmode;
  522         u_int32_t               tulip_last_system_error:3;
  523         u_int32_t               tulip_txtimer:2;        /* transmission timer */
  524         u_int32_t               tulip_system_errors;
  525         u_int32_t               tulip_statusbits;       /* status bits from
  526                                                          * CSR5 that may need
  527                                                          * to be printed
  528                                                          */
  529         tulip_media_info_t      *tulip_mediums[TULIP_MEDIA_MAX];
  530         tulip_media_t           tulip_media;            /* current media type */
  531         u_int32_t               tulip_abilities;        /* remote system's
  532                                                          * abilities (as
  533                                                          * defined in IEEE
  534                                                          * 802.3u)
  535                                                          */
  536         u_int8_t                tulip_revinfo;          /* chip revision */
  537         u_int8_t                tulip_phyaddr;          /* current phy */
  538         u_int8_t                tulip_gpinit;           /* active pins on
  539                                                          * 21140
  540                                                          */
  541         u_int8_t                tulip_gpdata;   /* default gpdata for 21140 */
  542         struct tulip_probe_info tulip_probe;
  543         tulip_chipid_t          tulip_chipid;   /* type of chip we are using */
  544         const tulip_boardsw_t   *tulip_boardsw; /* board/chip characteristics */
  545         tulip_softc_t           *tulip_slaves;  /* slaved devices (ZX3xx) */
  546 #if defined(TULIP_DEBUG)
  547         struct tulip_dbg_info   tulip_dbg;
  548 #endif
  549 #if defined(TULIP_PERFSTATS)
  550         struct tulip_perfstat   tulip_perfstats[TULIP_PERF_MAX];
  551 #endif
  552         tulip_dot3_stats_t      tulip_dot3stats;
  553         tulip_ringinfo_t        tulip_rxinfo;
  554         tulip_ringinfo_t        tulip_txinfo;
  555         tulip_media_info_t      tulip_mediainfo[10];
  556         /*
  557          * The setup buffers for sending the setup frame to the chip. one is
  558          * the one being sent while the other is the one being filled.
  559          */
  560         bus_dma_tag_t           tulip_setup_tag;
  561         bus_dmamap_t            tulip_setup_map;
  562         uint32_t                tulip_setup_dma_addr;
  563         u_int32_t               *tulip_setupbuf;
  564         u_int32_t               tulip_setupdata[192 / sizeof(u_int32_t)];
  565         char                    tulip_boardid[24];
  566         u_int8_t                tulip_rombuf[128];      /* must be aligned */
  567 
  568         /* needed for multiport boards */
  569         u_int8_t                tulip_pci_busno;
  570         u_int8_t                tulip_pci_devno;
  571 
  572         u_int8_t                tulip_connidx;
  573         tulip_srom_connection_t tulip_conntype;
  574         struct callout          tulip_callout;
  575         struct mtx              tulip_mutex;
  576 };
  577 
  578 #define tulip_curperfstats      tulip_perfstats[TULIP_PERF_CURRENT]
  579 #define tulip_probe_count       tulip_probe.probe_count
  580 #define tulip_probe_timeout     tulip_probe.probe_timeout
  581 #define tulip_probe_state       tulip_probe.probe_state
  582 #define tulip_probe_media       tulip_probe.probe_media
  583 #define tulip_probe_mediamask   tulip_probe.probe_mediamask
  584 #define tulip_probe_passes      tulip_probe.probe_passes
  585 
  586 /* Definitions for tulip_flags. */
  587 #define TULIP_WANTSETUP         0x00000001
  588 #define TULIP_WANTHASHPERFECT   0x00000002
  589 #define TULIP_WANTHASHONLY      0x00000004
  590 #define TULIP_DOINGSETUP        0x00000008
  591 #define TULIP_PRINTMEDIA        0x00000010
  592 #define TULIP_TXPROBE_ACTIVE    0x00000020
  593 #define TULIP_ALLMULTI          0x00000040
  594 #define TULIP_WANTRXACT         0x00000080
  595 #define TULIP_RXACT             0x00000100
  596 #define TULIP_INRESET           0x00000200
  597 #define TULIP_NEEDRESET         0x00000400
  598 #define TULIP_SQETEST           0x00000800
  599 #define TULIP_xxxxxx0           0x00001000
  600 #define TULIP_xxxxxx1           0x00002000
  601 #define TULIP_WANTTXSTART       0x00004000
  602 #define TULIP_NEWTXTHRESH       0x00008000
  603 #define TULIP_NOAUTOSENSE       0x00010000
  604 #define TULIP_PRINTLINKUP       0x00020000
  605 #define TULIP_LINKUP            0x00040000
  606 #define TULIP_RXBUFSLOW         0x00080000
  607 #define TULIP_NOMESSAGES        0x00100000
  608 #define TULIP_SYSTEMERROR       0x00200000
  609 #define TULIP_TIMEOUTPENDING    0x00400000
  610 #define TULIP_xxxxxx2           0x00800000
  611 #define TULIP_TRYNWAY           0x01000000
  612 #define TULIP_DIDNWAY           0x02000000
  613 #define TULIP_RXIGNORE          0x04000000
  614 #define TULIP_PROBE1STPASS      0x08000000
  615 #define TULIP_DEVICEPROBE       0x10000000
  616 #define TULIP_PROMISC           0x20000000
  617 #define TULIP_HASHONLY          0x40000000
  618 #define TULIP_xxxxxx3           0x80000000
  619 
  620 /* Definitions for tulip_features. */
  621 #define TULIP_HAVE_GPR          0x00000001      /* have gp register (140[A]) */
  622 #define TULIP_HAVE_RXBADOVRFLW  0x00000002      /* RX corrupts on overflow */
  623 #define TULIP_HAVE_POWERMGMT    0x00000004      /* Snooze/sleep modes */
  624 #define TULIP_HAVE_MII          0x00000008      /* Some medium on MII */
  625 #define TULIP_HAVE_SIANWAY      0x00000010      /* SIA does NWAY */
  626 #define TULIP_HAVE_DUALSENSE    0x00000020      /* SIA senses both AUI & TP */
  627 #define TULIP_HAVE_SIAGP        0x00000040      /* SIA has a GP port */
  628 #define TULIP_HAVE_BROKEN_HASH  0x00000080      /* Broken Multicast Hash */
  629 #define TULIP_HAVE_ISVSROM      0x00000100      /* uses ISV SROM Format */
  630 #define TULIP_HAVE_BASEROM      0x00000200      /* Board ROM can be cloned */
  631 #define TULIP_HAVE_SLAVEDROM    0x00000400      /* Board ROM cloned */
  632 #define TULIP_HAVE_SLAVEDINTR   0x00000800      /* Board slaved interrupt */
  633 #define TULIP_HAVE_SHAREDINTR   0x00001000      /* Board shares interrupts */
  634 #define TULIP_HAVE_OKROM        0x00002000      /* ROM was recognized */
  635 #define TULIP_HAVE_NOMEDIA      0x00004000      /* did not detect any media */
  636 #define TULIP_HAVE_STOREFWD     0x00008000      /* have CMD_STOREFWD */
  637 #define TULIP_HAVE_SIA100       0x00010000      /* has LS100 in SIA status */
  638 #define TULIP_HAVE_OKSROM       0x00020000      /* SROM CRC is OK */
  639 
  640 #define TULIP_DO_AUTOSENSE(sc)  \
  641         (IFM_SUBTYPE((sc)->tulip_ifmedia.ifm_media) == IFM_AUTO)
  642 
  643 #if defined(TULIP_HDR_DATA)
  644 static const char *const tulip_chipdescs[] = {
  645         "21040 [10Mb/s]",
  646         "21041 [10Mb/s]",
  647         "21140 [10-100Mb/s]",
  648         "21140A [10-100Mb/s]",
  649         "21142 [10-100Mb/s]",
  650         "21143 [10-100Mb/s]",
  651 };
  652 
  653 static const char *const tulip_mediums[] = {
  654         "unknown",              /* TULIP_MEDIA_UNKNOWN */
  655         "10baseT",              /* TULIP_MEDIA_10BASET */
  656         "Full Duplex 10baseT",  /* TULIP_MEDIA_10BASET_FD */
  657         "BNC",                  /* TULIP_MEDIA_BNC */
  658         "AUI",                  /* TULIP_MEDIA_AUI */
  659         "External SIA",         /* TULIP_MEDIA_EXTSIA */
  660         "AUI/BNC",              /* TULIP_MEDIA_AUIBNC */
  661         "100baseTX",            /* TULIP_MEDIA_100BASET */
  662         "Full Duplex 100baseTX",/* TULIP_MEDIA_100BASET_FD */
  663         "100baseT4",            /* TULIP_MEDIA_100BASET4 */
  664         "100baseFX",            /* TULIP_MEDIA_100BASEFX */
  665         "Full Duplex 100baseFX",/* TULIP_MEDIA_100BASEFX_FD */
  666 };
  667 
  668 static const int tulip_media_to_ifmedia[] = {
  669         IFM_ETHER | IFM_NONE,           /* TULIP_MEDIA_UNKNOWN */
  670         IFM_ETHER | IFM_10_T,           /* TULIP_MEDIA_10BASET */
  671         IFM_ETHER | IFM_10_T | IFM_FDX, /* TULIP_MEDIA_10BASET_FD */
  672         IFM_ETHER | IFM_10_2,           /* TULIP_MEDIA_BNC */
  673         IFM_ETHER | IFM_10_5,           /* TULIP_MEDIA_AUI */
  674         IFM_ETHER | IFM_MANUAL,         /* TULIP_MEDIA_EXTSIA */
  675         IFM_ETHER | IFM_10_5,           /* TULIP_MEDIA_AUIBNC */
  676         IFM_ETHER | IFM_100_TX,         /* TULIP_MEDIA_100BASET */
  677         IFM_ETHER | IFM_100_TX | IFM_FDX,       /* TULIP_MEDIA_100BASET_FD */
  678         IFM_ETHER | IFM_100_T4,         /* TULIP_MEDIA_100BASET4 */
  679         IFM_ETHER | IFM_100_FX,         /* TULIP_MEDIA_100BASEFX */
  680         IFM_ETHER | IFM_100_FX | IFM_FDX,       /* TULIP_MEDIA_100BASEFX_FD */
  681 };
  682 
  683 static const char *const tulip_system_errors[] = {
  684         "parity error",
  685         "master abort",
  686         "target abort",
  687         "reserved #3",
  688         "reserved #4",
  689         "reserved #5",
  690         "reserved #6",
  691         "reserved #7",
  692 };
  693 
  694 static const char *const tulip_status_bits[] = {
  695         NULL,
  696         "transmit process stopped",
  697         NULL,
  698         "transmit jabber timeout",
  699 
  700         NULL,
  701         "transmit underflow",
  702         NULL,
  703         "receive underflow",
  704 
  705         "receive process stopped",
  706         "receive watchdog timeout",
  707         NULL,
  708         NULL,
  709 
  710         "link failure",
  711         NULL,
  712         NULL,
  713 };
  714 
  715 static const struct {
  716         tulip_srom_connection_t sc_type;
  717         tulip_media_t sc_media;
  718         u_int32_t sc_attrs;
  719 } tulip_srom_conninfo[] = {
  720         {
  721                 TULIP_SROM_CONNTYPE_10BASET, TULIP_MEDIA_10BASET
  722         },
  723         {
  724                 TULIP_SROM_CONNTYPE_BNC, TULIP_MEDIA_BNC
  725         },
  726         {
  727                 TULIP_SROM_CONNTYPE_AUI, TULIP_MEDIA_AUI
  728         },
  729         {
  730                 TULIP_SROM_CONNTYPE_100BASETX, TULIP_MEDIA_100BASETX
  731         },
  732         {
  733                 TULIP_SROM_CONNTYPE_100BASET4, TULIP_MEDIA_100BASET4
  734         },
  735         {
  736                 TULIP_SROM_CONNTYPE_100BASEFX, TULIP_MEDIA_100BASEFX
  737         },
  738         {
  739                 TULIP_SROM_CONNTYPE_MII_10BASET, TULIP_MEDIA_10BASET,
  740                 TULIP_SROM_ATTR_MII
  741         },
  742         {
  743                 TULIP_SROM_CONNTYPE_MII_100BASETX, TULIP_MEDIA_100BASETX,
  744                 TULIP_SROM_ATTR_MII
  745         },
  746         {
  747                 TULIP_SROM_CONNTYPE_MII_100BASET4, TULIP_MEDIA_100BASET4,
  748                 TULIP_SROM_ATTR_MII
  749         },
  750         {
  751                 TULIP_SROM_CONNTYPE_MII_100BASEFX, TULIP_MEDIA_100BASEFX,
  752                 TULIP_SROM_ATTR_MII
  753         },
  754         {
  755                 TULIP_SROM_CONNTYPE_10BASET_NWAY, TULIP_MEDIA_10BASET,
  756                 TULIP_SROM_ATTR_NWAY
  757         },
  758         {
  759                 TULIP_SROM_CONNTYPE_10BASET_FD, TULIP_MEDIA_10BASET_FD
  760         },
  761         {
  762                 TULIP_SROM_CONNTYPE_MII_10BASET_FD, TULIP_MEDIA_10BASET_FD,
  763                 TULIP_SROM_ATTR_MII
  764         },
  765         {
  766                 TULIP_SROM_CONNTYPE_100BASETX_FD, TULIP_MEDIA_100BASETX_FD
  767         },
  768         {
  769                 TULIP_SROM_CONNTYPE_MII_100BASETX_FD, TULIP_MEDIA_100BASETX_FD,
  770                 TULIP_SROM_ATTR_MII
  771         },
  772         {
  773                 TULIP_SROM_CONNTYPE_10BASET_NOLINKPASS, TULIP_MEDIA_10BASET,
  774                 TULIP_SROM_ATTR_NOLINKPASS
  775         },
  776         {
  777                 TULIP_SROM_CONNTYPE_AUTOSENSE, TULIP_MEDIA_UNKNOWN,
  778                 TULIP_SROM_ATTR_AUTOSENSE
  779         },
  780         {
  781                 TULIP_SROM_CONNTYPE_AUTOSENSE_POWERUP, TULIP_MEDIA_UNKNOWN,
  782                 TULIP_SROM_ATTR_AUTOSENSE | TULIP_SROM_ATTR_POWERUP
  783         },
  784         {
  785                 TULIP_SROM_CONNTYPE_AUTOSENSE_NWAY, TULIP_MEDIA_UNKNOWN,
  786                 TULIP_SROM_ATTR_AUTOSENSE | TULIP_SROM_ATTR_NWAY
  787         },
  788         {
  789                 TULIP_SROM_CONNTYPE_NOT_USED, TULIP_MEDIA_UNKNOWN
  790         }
  791 };
  792 #define TULIP_SROM_LASTCONNIDX  \
  793                 (sizeof(tulip_srom_conninfo)/sizeof(tulip_srom_conninfo[0]) - 1)
  794 
  795 static const struct {
  796         tulip_media_t sm_type;
  797         tulip_srom_media_t sm_srom_type;
  798 } tulip_srom_mediums[] = {
  799         {
  800                 TULIP_MEDIA_100BASEFX_FD, TULIP_SROM_MEDIA_100BASEFX_FD
  801         },
  802         {
  803                 TULIP_MEDIA_100BASEFX, TULIP_SROM_MEDIA_100BASEFX
  804         },
  805         {
  806                 TULIP_MEDIA_100BASET4, TULIP_SROM_MEDIA_100BASET4
  807         },
  808         {
  809                 TULIP_MEDIA_100BASETX_FD, TULIP_SROM_MEDIA_100BASETX_FD
  810         },
  811         {
  812                 TULIP_MEDIA_100BASETX, TULIP_SROM_MEDIA_100BASETX
  813         },
  814         {
  815                 TULIP_MEDIA_10BASET_FD, TULIP_SROM_MEDIA_10BASET_FD
  816         },
  817         {
  818                 TULIP_MEDIA_AUI, TULIP_SROM_MEDIA_AUI
  819         },
  820         {
  821                 TULIP_MEDIA_BNC, TULIP_SROM_MEDIA_BNC
  822         },
  823         {
  824                 TULIP_MEDIA_10BASET, TULIP_SROM_MEDIA_10BASET
  825         },
  826         {
  827                 TULIP_MEDIA_UNKNOWN
  828         }
  829 };
  830 
  831 #endif                          /* TULIP_HDR_DATA */
  832 
  833 /*
  834  * Macro to encode 16 bits of a MAC address into the setup buffer.  Since
  835  * we are casting the two bytes in the char array to a uint16 and then
  836  * handing them to this macro, we don't need to swap the bytes in the big
  837  * endian case, just shift them left 16.
  838  */
  839 #if BYTE_ORDER == BIG_ENDIAN
  840 #define TULIP_SP_MAC(x)         ((x) << 16)
  841 #else
  842 #define TULIP_SP_MAC(x)         (x)
  843 #endif
  844 
  845 /*
  846  * This driver supports a maximum of 32 tulip boards.
  847  * This should be enough for the forseeable future.
  848  */
  849 #define TULIP_MAX_DEVICES       32
  850 
  851 #define _TULIP_DESC_SYNC(ri, op)                                        \
  852         bus_dmamap_sync((ri)->ri_ring_tag, (ri)->ri_ring_map, (op))
  853 #define _TULIP_MAP_SYNC(ri, di, op)                                     \
  854         bus_dmamap_sync((ri)->ri_data_tag, *(di)->di_map, (op))
  855 
  856 /*
  857  * Descriptors are both read from and written to by the card (corresponding
  858  * to DMA WRITE and READ operations in bus-dma speak).  Receive maps are
  859  * written to by the card (a DMA READ operation in bus-dma) and transmit
  860  * buffers are read from by the card (a DMA WRITE operation in bus-dma).
  861  */
  862 #define TULIP_RXDESC_PRESYNC(ri)                                        \
  863         _TULIP_DESC_SYNC(ri, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE)
  864 #define TULIP_RXDESC_POSTSYNC(ri)                                       \
  865         _TULIP_DESC_SYNC(ri, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE)
  866 #define TULIP_RXMAP_PRESYNC(ri, di)                                     \
  867         _TULIP_MAP_SYNC(ri, di, BUS_DMASYNC_PREREAD)
  868 #define TULIP_RXMAP_POSTSYNC(ri, di)                                    \
  869         _TULIP_MAP_SYNC(ri, di, BUS_DMASYNC_POSTREAD)
  870 #define TULIP_TXDESC_PRESYNC(ri)                                        \
  871         _TULIP_DESC_SYNC(ri, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE)
  872 #define TULIP_TXDESC_POSTSYNC(ri)                                       \
  873         _TULIP_DESC_SYNC(ri, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE)
  874 #define TULIP_TXMAP_PRESYNC(ri, di)                                     \
  875         _TULIP_MAP_SYNC(ri, di, BUS_DMASYNC_PREWRITE)
  876 #define TULIP_TXMAP_POSTSYNC(ri, di)                                    \
  877         _TULIP_MAP_SYNC(ri, di, BUS_DMASYNC_POSTWRITE)
  878 
  879 #ifdef notyet
  880 #define SIOCGADDRROM            _IOW('i', 240, struct ifreq)    /* get 128 bytes of ROM */
  881 #define SIOCGCHIPID             _IOWR('i', 241, struct ifreq)   /* get chipid */
  882 #endif
  883 
  884 #if defined(TULIP_HDR_DATA)
  885 static tulip_softc_t    *tulips[TULIP_MAX_DEVICES];
  886 #endif
  887 
  888 #define loudprintf                      if (bootverbose) printf
  889 
  890 #if defined(TULIP_PERFSTATS)
  891 #define TULIP_PERFMERGE(sc, member) \
  892         do { (sc)->tulip_perfstats[TULIP_PERF_TOTAL].member \
  893              += (sc)->tulip_perfstats[TULIP_PERF_CURRENT].member; \
  894          (sc)->tulip_perfstats[TULIP_PERF_PREVIOUS].member \
  895               = (sc)->tulip_perfstats[TULIP_PERF_CURRENT].member; \
  896             (sc)->tulip_perfstats[TULIP_PERF_CURRENT].member = 0; } while (0)
  897 #define TULIP_PERFSTART(name) const tulip_cycle_t perfstart_ ## name = TULIP_PERFREAD();
  898 #define TULIP_PERFEND(name)     do { \
  899             (sc)->tulip_curperfstats.perf_ ## name ## _cycles += TULIP_PERFDIFF(perfstart_ ## name, TULIP_PERFREAD()); \
  900             (sc)->tulip_curperfstats.perf_ ## name ++; \
  901         } while (0)
  902 
  903 typedef u_long tulip_cycle_t;
  904 
  905 static __inline tulip_cycle_t
  906 TULIP_PERFREAD(void)
  907 {
  908         return (get_cyclecount());
  909 }
  910 
  911 #define TULIP_PERFDIFF(s, f)    ((f) - (s))
  912 #else
  913 #define TULIP_PERFSTART(name)
  914 #define TULIP_PERFEND(name)     do { } while (0)
  915 #define TULIP_PERFMERGE(s,n)    do { } while (0)
  916 #endif  /* TULIP_PERFSTATS */
  917 
  918 #define TULIP_CRC32_POLY        0xEDB88320UL    /* CRC-32 Poly -- Little
  919                                                  * Endian */
  920 #define TULIP_MAX_TXSEG         30
  921 #define TULIP_MAX_FRAGS         2
  922 
  923 #define TULIP_ADDREQUAL(a1, a2) \
  924         (((u_int16_t *)a1)[0] == ((u_int16_t *)a2)[0] \
  925          && ((u_int16_t *)a1)[1] == ((u_int16_t *)a2)[1] \
  926          && ((u_int16_t *)a1)[2] == ((u_int16_t *)a2)[2])
  927 #define TULIP_ADDRBRDCST(a1) \
  928         (((u_int16_t *)a1)[0] == 0xFFFFU \
  929          && ((u_int16_t *)a1)[1] == 0xFFFFU \
  930          && ((u_int16_t *)a1)[2] == 0xFFFFU)
  931 
  932 #define TULIP_MUTEX(sc)         (&(sc)->tulip_mutex)
  933 #define TULIP_LOCK(sc)          mtx_lock(TULIP_MUTEX(sc))
  934 #define TULIP_UNLOCK(sc)        mtx_unlock(TULIP_MUTEX(sc))
  935 #define TULIP_LOCK_ASSERT(sc)   mtx_assert(TULIP_MUTEX(sc), MA_OWNED)
  936 
  937 #endif  /* _DEVAR_H */

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