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

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    1 /*
    2  * Copyright (c) 1997, 1998
    3  *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 3. All advertising materials mentioning features or use of this software
   14  *    must display the following acknowledgement:
   15  *      This product includes software developed by Bill Paul.
   16  * 4. Neither the name of the author nor the names of any co-contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
   24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   30  * THE POSSIBILITY OF SUCH DAMAGE.
   31  *
   32  * $FreeBSD: releng/5.0/sys/pci/if_xlreg.h 105675 2002-10-22 02:33:50Z silby $
   33  */
   34 
   35 #define XL_EE_READ      0x0080  /* read, 5 bit address */
   36 #define XL_EE_WRITE     0x0040  /* write, 5 bit address */
   37 #define XL_EE_ERASE     0x00c0  /* erase, 5 bit address */
   38 #define XL_EE_EWEN      0x0030  /* erase, no data needed */
   39 #define XL_EE_8BIT_READ 0x0200  /* read, 8 bit address */
   40 #define XL_EE_BUSY      0x8000
   41 
   42 #define XL_EE_EADDR0    0x00    /* station address, first word */
   43 #define XL_EE_EADDR1    0x01    /* station address, next word, */
   44 #define XL_EE_EADDR2    0x02    /* station address, last word */
   45 #define XL_EE_PRODID    0x03    /* product ID code */
   46 #define XL_EE_MDATA_DATE        0x04    /* manufacturing data, date */
   47 #define XL_EE_MDATA_DIV         0x05    /* manufacturing data, division */
   48 #define XL_EE_MDATA_PCODE       0x06    /* manufacturing data, product code */
   49 #define XL_EE_MFG_ID    0x07
   50 #define XL_EE_PCI_PARM  0x08
   51 #define XL_EE_ROM_ONFO  0x09
   52 #define XL_EE_OEM_ADR0  0x0A
   53 #define XL_EE_OEM_ADR1  0x0B
   54 #define XL_EE_OEM_ADR2  0x0C
   55 #define XL_EE_SOFTINFO1 0x0D
   56 #define XL_EE_COMPAT    0x0E
   57 #define XL_EE_SOFTINFO2 0x0F
   58 #define XL_EE_CAPS      0x10    /* capabilities word */
   59 #define XL_EE_RSVD0     0x11
   60 #define XL_EE_ICFG_0    0x12
   61 #define XL_EE_ICFG_1    0x13
   62 #define XL_EE_RSVD1     0x14
   63 #define XL_EE_SOFTINFO3 0x15
   64 #define XL_EE_RSVD_2    0x16
   65 
   66 /*
   67  * Bits in the capabilities word
   68  */
   69 #define XL_CAPS_PNP             0x0001
   70 #define XL_CAPS_FULL_DUPLEX     0x0002
   71 #define XL_CAPS_LARGE_PKTS      0x0004
   72 #define XL_CAPS_SLAVE_DMA       0x0008
   73 #define XL_CAPS_SECOND_DMA      0x0010
   74 #define XL_CAPS_FULL_BM         0x0020
   75 #define XL_CAPS_FRAG_BM         0x0040
   76 #define XL_CAPS_CRC_PASSTHRU    0x0080
   77 #define XL_CAPS_TXDONE          0x0100
   78 #define XL_CAPS_NO_TXLENGTH     0x0200
   79 #define XL_CAPS_RX_REPEAT       0x0400
   80 #define XL_CAPS_SNOOPING        0x0800
   81 #define XL_CAPS_100MBPS         0x1000
   82 #define XL_CAPS_PWRMGMT         0x2000
   83 
   84 #define XL_PACKET_SIZE 1540
   85         
   86 /*
   87  * Register layouts.
   88  */
   89 #define XL_COMMAND              0x0E
   90 #define XL_STATUS               0x0E
   91 
   92 #define XL_TX_STATUS            0x1B
   93 #define XL_TX_FREE              0x1C
   94 #define XL_DMACTL               0x20
   95 #define XL_DOWNLIST_PTR         0x24
   96 #define XL_DOWN_POLL            0x2D /* 3c90xB only */
   97 #define XL_TX_FREETHRESH        0x2F
   98 #define XL_UPLIST_PTR           0x38
   99 #define XL_UPLIST_STATUS        0x30
  100 #define XL_UP_POLL              0x3D /* 3c90xB only */
  101 
  102 #define XL_PKTSTAT_UP_STALLED           0x00002000
  103 #define XL_PKTSTAT_UP_ERROR             0x00004000
  104 #define XL_PKTSTAT_UP_CMPLT             0x00008000
  105 
  106 #define XL_DMACTL_DN_CMPLT_REQ          0x00000002
  107 #define XL_DMACTL_DOWN_STALLED          0x00000004
  108 #define XL_DMACTL_UP_CMPLT              0x00000008
  109 #define XL_DMACTL_DOWN_CMPLT            0x00000010
  110 #define XL_DMACTL_UP_RX_EARLY           0x00000020
  111 #define XL_DMACTL_ARM_COUNTDOWN         0x00000040
  112 #define XL_DMACTL_DOWN_INPROG           0x00000080
  113 #define XL_DMACTL_COUNTER_SPEED         0x00000100
  114 #define XL_DMACTL_DOWNDOWN_MODE         0x00000200
  115 #define XL_DMACTL_TARGET_ABORT          0x40000000
  116 #define XL_DMACTL_MASTER_ABORT          0x80000000
  117 
  118 /*
  119  * Command codes. Some command codes require that we wait for
  120  * the CMD_BUSY flag to clear. Those codes are marked as 'mustwait.'
  121  */
  122 #define XL_CMD_RESET            0x0000  /* mustwait */
  123 #define XL_CMD_WINSEL           0x0800
  124 #define XL_CMD_COAX_START       0x1000
  125 #define XL_CMD_RX_DISABLE       0x1800
  126 #define XL_CMD_RX_ENABLE        0x2000
  127 #define XL_CMD_RX_RESET         0x2800  /* mustwait */
  128 #define XL_CMD_UP_STALL         0x3000  /* mustwait */
  129 #define XL_CMD_UP_UNSTALL       0x3001
  130 #define XL_CMD_DOWN_STALL       0x3002  /* mustwait */
  131 #define XL_CMD_DOWN_UNSTALL     0x3003
  132 #define XL_CMD_RX_DISCARD       0x4000
  133 #define XL_CMD_TX_ENABLE        0x4800
  134 #define XL_CMD_TX_DISABLE       0x5000
  135 #define XL_CMD_TX_RESET         0x5800  /* mustwait */
  136 #define XL_CMD_INTR_FAKE        0x6000
  137 #define XL_CMD_INTR_ACK         0x6800
  138 #define XL_CMD_INTR_ENB         0x7000
  139 #define XL_CMD_STAT_ENB         0x7800
  140 #define XL_CMD_RX_SET_FILT      0x8000
  141 #define XL_CMD_RX_SET_THRESH    0x8800
  142 #define XL_CMD_TX_SET_THRESH    0x9000
  143 #define XL_CMD_TX_SET_START     0x9800
  144 #define XL_CMD_DMA_UP           0xA000
  145 #define XL_CMD_DMA_STOP         0xA001
  146 #define XL_CMD_STATS_ENABLE     0xA800
  147 #define XL_CMD_STATS_DISABLE    0xB000
  148 #define XL_CMD_COAX_STOP        0xB800
  149 
  150 #define XL_CMD_SET_TX_RECLAIM   0xC000 /* 3c905B only */
  151 #define XL_CMD_RX_SET_HASH      0xC800 /* 3c905B only */
  152 
  153 #define XL_HASH_SET             0x0400
  154 #define XL_HASHFILT_SIZE        256
  155 
  156 /*
  157  * status codes
  158  * Note that bits 15 to 13 indicate the currently visible register window
  159  * which may be anything from 0 to 7.
  160  */
  161 #define XL_STAT_INTLATCH        0x0001  /* 0 */
  162 #define XL_STAT_ADFAIL          0x0002  /* 1 */
  163 #define XL_STAT_TX_COMPLETE     0x0004  /* 2 */
  164 #define XL_STAT_TX_AVAIL        0x0008  /* 3 first generation */
  165 #define XL_STAT_RX_COMPLETE     0x0010  /* 4 */
  166 #define XL_STAT_RX_EARLY        0x0020  /* 5 */
  167 #define XL_STAT_INTREQ          0x0040  /* 6 */
  168 #define XL_STAT_STATSOFLOW      0x0080  /* 7 */
  169 #define XL_STAT_DMADONE         0x0100  /* 8 first generation */
  170 #define XL_STAT_LINKSTAT        0x0100  /* 8 3c509B */
  171 #define XL_STAT_DOWN_COMPLETE   0x0200  /* 9 */
  172 #define XL_STAT_UP_COMPLETE     0x0400  /* 10 */
  173 #define XL_STAT_DMABUSY         0x0800  /* 11 first generation */
  174 #define XL_STAT_CMDBUSY         0x1000  /* 12 */
  175 
  176 /*
  177  * Interrupts we normally want enabled.
  178  */
  179 #define XL_INTRS                                                        \
  180         (XL_STAT_UP_COMPLETE|XL_STAT_STATSOFLOW|XL_STAT_ADFAIL| \
  181          XL_STAT_DOWN_COMPLETE|XL_STAT_TX_COMPLETE|XL_STAT_INTLATCH)
  182 
  183 /*
  184  * Window 0 registers
  185  */
  186 #define XL_W0_EE_DATA           0x0C
  187 #define XL_W0_EE_CMD            0x0A
  188 #define XL_W0_RSRC_CFG          0x08
  189 #define XL_W0_ADDR_CFG          0x06
  190 #define XL_W0_CFG_CTRL          0x04
  191 
  192 #define XL_W0_PROD_ID           0x02
  193 #define XL_W0_MFG_ID            0x00
  194 
  195 /*
  196  * Window 1
  197  */
  198 
  199 #define XL_W1_TX_FIFO           0x10
  200 
  201 #define XL_W1_FREE_TX           0x0C
  202 #define XL_W1_TX_STATUS         0x0B
  203 #define XL_W1_TX_TIMER          0x0A
  204 #define XL_W1_RX_STATUS         0x08
  205 #define XL_W1_RX_FIFO           0x00
  206 
  207 /*
  208  * RX status codes
  209  */
  210 #define XL_RXSTATUS_OVERRUN     0x01
  211 #define XL_RXSTATUS_RUNT        0x02
  212 #define XL_RXSTATUS_ALIGN       0x04
  213 #define XL_RXSTATUS_CRC         0x08
  214 #define XL_RXSTATUS_OVERSIZE    0x10
  215 #define XL_RXSTATUS_DRIBBLE     0x20
  216 
  217 /*
  218  * TX status codes
  219  */
  220 #define XL_TXSTATUS_RECLAIM     0x02 /* 3c905B only */
  221 #define XL_TXSTATUS_OVERFLOW    0x04
  222 #define XL_TXSTATUS_MAXCOLS     0x08
  223 #define XL_TXSTATUS_UNDERRUN    0x10
  224 #define XL_TXSTATUS_JABBER      0x20
  225 #define XL_TXSTATUS_INTREQ      0x40
  226 #define XL_TXSTATUS_COMPLETE    0x80
  227 
  228 /*
  229  * Window 2
  230  */
  231 #define XL_W2_RESET_OPTIONS     0x0C    /* 3c905B only */
  232 #define XL_W2_STATION_MASK_HI   0x0A
  233 #define XL_W2_STATION_MASK_MID  0x08
  234 #define XL_W2_STATION_MASK_LO   0x06
  235 #define XL_W2_STATION_ADDR_HI   0x04
  236 #define XL_W2_STATION_ADDR_MID  0x02
  237 #define XL_W2_STATION_ADDR_LO   0x00
  238 
  239 #define XL_RESETOPT_FEATUREMASK 0x0001|0x0002|0x004
  240 #define XL_RESETOPT_D3RESETDIS  0x0008
  241 #define XL_RESETOPT_DISADVFD    0x0010
  242 #define XL_RESETOPT_DISADV100   0x0020
  243 #define XL_RESETOPT_DISAUTONEG  0x0040
  244 #define XL_RESETOPT_DEBUGMODE   0x0080
  245 #define XL_RESETOPT_FASTAUTO    0x0100
  246 #define XL_RESETOPT_FASTEE      0x0200
  247 #define XL_RESETOPT_FORCEDCONF  0x0400
  248 #define XL_RESETOPT_TESTPDTPDR  0x0800
  249 #define XL_RESETOPT_TEST100TX   0x1000
  250 #define XL_RESETOPT_TEST100RX   0x2000
  251 
  252 #define XL_RESETOPT_INVERT_LED  0x0010
  253 #define XL_RESETOPT_INVERT_MII  0x4000
  254 
  255 /*
  256  * Window 3 (fifo management)
  257  */
  258 #define XL_W3_INTERNAL_CFG      0x00
  259 #define XL_W3_MAXPKTSIZE        0x04    /* 3c905B only */
  260 #define XL_W3_RESET_OPT         0x08
  261 #define XL_W3_FREE_TX           0x0C
  262 #define XL_W3_FREE_RX           0x0A
  263 #define XL_W3_MAC_CTRL          0x06
  264 
  265 #define XL_ICFG_CONNECTOR_MASK  0x00F00000
  266 #define XL_ICFG_CONNECTOR_BITS  20
  267 
  268 #define XL_ICFG_RAMSIZE_MASK    0x00000007
  269 #define XL_ICFG_RAMWIDTH        0x00000008
  270 #define XL_ICFG_ROMSIZE_MASK    (0x00000040|0x00000080)
  271 #define XL_ICFG_DISABLE_BASSD   0x00000100
  272 #define XL_ICFG_RAMLOC          0x00000200
  273 #define XL_ICFG_RAMPART         (0x00010000|0x00020000)
  274 #define XL_ICFG_XCVRSEL         (0x00100000|0x00200000|0x00400000)
  275 #define XL_ICFG_AUTOSEL         0x01000000
  276 
  277 #define XL_XCVR_10BT            0x00
  278 #define XL_XCVR_AUI             0x01
  279 #define XL_XCVR_RSVD_0          0x02
  280 #define XL_XCVR_COAX            0x03
  281 #define XL_XCVR_100BTX          0x04
  282 #define XL_XCVR_100BFX          0x05
  283 #define XL_XCVR_MII             0x06
  284 #define XL_XCVR_RSVD_1          0x07
  285 #define XL_XCVR_AUTO            0x08    /* 3c905B only */
  286 
  287 #define XL_MACCTRL_DEFER_EXT_END        0x0001
  288 #define XL_MACCTRL_DEFER_0              0x0002
  289 #define XL_MACCTRL_DEFER_1              0x0004
  290 #define XL_MACCTRL_DEFER_2              0x0008
  291 #define XL_MACCTRL_DEFER_3              0x0010
  292 #define XL_MACCTRL_DUPLEX               0x0020
  293 #define XL_MACCTRL_ALLOW_LARGE_PACK     0x0040
  294 #define XL_MACCTRL_EXTEND_AFTER_COL     0x0080 (3c905B only)
  295 #define XL_MACCTRL_FLOW_CONTROL_ENB     0x0100 (3c905B only)
  296 #define XL_MACCTRL_VLT_END              0x0200 (3c905B only)
  297 
  298 /*
  299  * The 'reset options' register contains power-on reset values
  300  * loaded from the EEPROM. This includes the supported media
  301  * types on the card. It is also known as the media options register.
  302  */
  303 #define XL_W3_MEDIA_OPT         0x08
  304 
  305 #define XL_MEDIAOPT_BT4         0x0001  /* MII */
  306 #define XL_MEDIAOPT_BTX         0x0002  /* on-chip */
  307 #define XL_MEDIAOPT_BFX         0x0004  /* on-chip */
  308 #define XL_MEDIAOPT_BT          0x0008  /* on-chip */
  309 #define XL_MEDIAOPT_BNC         0x0010  /* on-chip */
  310 #define XL_MEDIAOPT_AUI         0x0020  /* on-chip */
  311 #define XL_MEDIAOPT_MII         0x0040  /* MII */
  312 #define XL_MEDIAOPT_VCO         0x0100  /* 1st gen chip only */
  313 
  314 #define XL_MEDIAOPT_10FL        0x0100  /* 3x905B only, on-chip */
  315 #define XL_MEDIAOPT_MASK        0x01FF
  316 
  317 /*
  318  * Window 4 (diagnostics)
  319  */
  320 #define XL_W4_UPPERBYTESOK      0x0D
  321 #define XL_W4_BADSSD            0x0C
  322 #define XL_W4_MEDIA_STATUS      0x0A
  323 #define XL_W4_PHY_MGMT          0x08
  324 #define XL_W4_NET_DIAG          0x06
  325 #define XL_W4_FIFO_DIAG         0x04
  326 #define XL_W4_VCO_DIAG          0x02
  327 
  328 #define XL_W4_CTRLR_STAT        0x08
  329 #define XL_W4_TX_DIAG           0x00
  330 
  331 #define XL_MII_CLK              0x01
  332 #define XL_MII_DATA             0x02
  333 #define XL_MII_DIR              0x04
  334 
  335 #define XL_MEDIA_SQE            0x0008
  336 #define XL_MEDIA_10TP           0x00C0
  337 #define XL_MEDIA_LNK            0x0080
  338 #define XL_MEDIA_LNKBEAT        0x0800
  339 
  340 #define XL_MEDIASTAT_CRCSTRIP   0x0004
  341 #define XL_MEDIASTAT_SQEENB     0x0008
  342 #define XL_MEDIASTAT_COLDET     0x0010
  343 #define XL_MEDIASTAT_CARRIER    0x0020
  344 #define XL_MEDIASTAT_JABGUARD   0x0040
  345 #define XL_MEDIASTAT_LINKBEAT   0x0080
  346 #define XL_MEDIASTAT_JABDETECT  0x0200
  347 #define XL_MEDIASTAT_POLREVERS  0x0400
  348 #define XL_MEDIASTAT_LINKDETECT 0x0800
  349 #define XL_MEDIASTAT_TXINPROG   0x1000
  350 #define XL_MEDIASTAT_DCENB      0x4000
  351 #define XL_MEDIASTAT_AUIDIS     0x8000
  352 
  353 #define XL_NETDIAG_TEST_LOWVOLT         0x0001
  354 #define XL_NETDIAG_ASIC_REVMASK         (0x0002|0x0004|0x0008|0x0010|0x0020)
  355 #define XL_NETDIAG_UPPER_BYTES_ENABLE   0x0040
  356 #define XL_NETDIAG_STATS_ENABLED        0x0080
  357 #define XL_NETDIAG_TX_FATALERR          0x0100
  358 #define XL_NETDIAG_TRANSMITTING         0x0200
  359 #define XL_NETDIAG_RX_ENABLED           0x0400
  360 #define XL_NETDIAG_TX_ENABLED           0x0800
  361 #define XL_NETDIAG_FIFO_LOOPBACK        0x1000
  362 #define XL_NETDIAG_MAC_LOOPBACK         0x2000
  363 #define XL_NETDIAG_ENDEC_LOOPBACK       0x4000
  364 #define XL_NETDIAG_EXTERNAL_LOOP        0x8000
  365 
  366 /*
  367  * Window 5
  368  */
  369 #define XL_W5_STAT_ENB          0x0C
  370 #define XL_W5_INTR_ENB          0x0A
  371 #define XL_W5_RECLAIM_THRESH    0x09    /* 3c905B only */
  372 #define XL_W5_RX_FILTER         0x08
  373 #define XL_W5_RX_EARLYTHRESH    0x06
  374 #define XL_W5_TX_AVAILTHRESH    0x02
  375 #define XL_W5_TX_STARTTHRESH    0x00
  376 
  377 /*
  378  * RX filter bits
  379  */
  380 #define XL_RXFILTER_INDIVIDUAL  0x01
  381 #define XL_RXFILTER_ALLMULTI    0x02
  382 #define XL_RXFILTER_BROADCAST   0x04
  383 #define XL_RXFILTER_ALLFRAMES   0x08
  384 #define XL_RXFILTER_MULTIHASH   0x10 /* 3c905B only */
  385 
  386 /*
  387  * Window 6 (stats)
  388  */
  389 #define XL_W6_TX_BYTES_OK       0x0C
  390 #define XL_W6_RX_BYTES_OK       0x0A
  391 #define XL_W6_UPPER_FRAMES_OK   0x09
  392 #define XL_W6_DEFERRED          0x08
  393 #define XL_W6_RX_OK             0x07
  394 #define XL_W6_TX_OK             0x06
  395 #define XL_W6_RX_OVERRUN        0x05
  396 #define XL_W6_COL_LATE          0x04
  397 #define XL_W6_COL_SINGLE        0x03
  398 #define XL_W6_COL_MULTIPLE      0x02
  399 #define XL_W6_SQE_ERRORS        0x01
  400 #define XL_W6_CARRIER_LOST      0x00
  401 
  402 /*
  403  * Window 7 (bus master control)
  404  */
  405 #define XL_W7_BM_ADDR           0x00
  406 #define XL_W7_BM_LEN            0x06
  407 #define XL_W7_BM_STATUS         0x0B
  408 #define XL_W7_BM_TIMEr          0x0A
  409 
  410 /*
  411  * bus master control registers
  412  */
  413 #define XL_BM_PKTSTAT           0x20
  414 #define XL_BM_DOWNLISTPTR       0x24
  415 #define XL_BM_FRAGADDR          0x28
  416 #define XL_BM_FRAGLEN           0x2C
  417 #define XL_BM_TXFREETHRESH      0x2F
  418 #define XL_BM_UPPKTSTAT         0x30
  419 #define XL_BM_UPLISTPTR         0x38
  420 
  421 #define XL_LAST_FRAG            0x80000000
  422 
  423 /*
  424  * Boomerang/Cyclone TX/RX list structure.
  425  * For the TX lists, bits 0 to 12 of the status word indicate
  426  * length.
  427  * This looks suspiciously like the ThunderLAN, doesn't it.
  428  */
  429 struct xl_frag {
  430         u_int32_t               xl_addr;        /* 63 addr/len pairs */
  431         u_int32_t               xl_len;
  432 };
  433 
  434 struct xl_list {
  435         u_int32_t               xl_next;        /* final entry has 0 nextptr */
  436         u_int32_t               xl_status;
  437         struct xl_frag          xl_frag[63];
  438 };
  439 
  440 struct xl_list_onefrag {
  441         u_int32_t               xl_next;        /* final entry has 0 nextptr */
  442         u_int32_t               xl_status;
  443         struct xl_frag          xl_frag;
  444 };
  445 
  446 #define XL_MAXFRAGS             63
  447 #define XL_RX_LIST_CNT          128
  448 #define XL_TX_LIST_CNT          256
  449 #define XL_MIN_FRAMELEN         60
  450 #define ETHER_ALIGN             2
  451 #define XL_INC(x, y)            (x) = (x + 1) % y
  452 
  453 struct xl_list_data {
  454         struct xl_list_onefrag  xl_rx_list[XL_RX_LIST_CNT];
  455         struct xl_list          xl_tx_list[XL_TX_LIST_CNT];
  456         unsigned char           xl_pad[XL_MIN_FRAMELEN];
  457 };
  458 
  459 struct xl_chain {
  460         struct xl_list          *xl_ptr;
  461         struct mbuf             *xl_mbuf;
  462         struct xl_chain         *xl_next;
  463         struct xl_chain         *xl_prev;
  464         u_int32_t               xl_phys;
  465 };
  466 
  467 struct xl_chain_onefrag {
  468         struct xl_list_onefrag  *xl_ptr;
  469         struct mbuf             *xl_mbuf;
  470         struct xl_chain_onefrag *xl_next;
  471 };
  472 
  473 struct xl_chain_data {
  474         struct xl_chain_onefrag xl_rx_chain[XL_RX_LIST_CNT];
  475         struct xl_chain         xl_tx_chain[XL_TX_LIST_CNT];
  476 
  477         struct xl_chain_onefrag *xl_rx_head;
  478 
  479         /* 3c90x "boomerang" queuing stuff */
  480         struct xl_chain         *xl_tx_head;
  481         struct xl_chain         *xl_tx_tail;
  482         struct xl_chain         *xl_tx_free;
  483 
  484         /* 3c90xB "cyclone/hurricane/tornado" stuff */
  485         int                     xl_tx_prod;
  486         int                     xl_tx_cons;
  487         int                     xl_tx_cnt;
  488 };
  489 
  490 #define XL_RXSTAT_LENMASK       0x00001FFF
  491 #define XL_RXSTAT_UP_ERROR      0x00004000
  492 #define XL_RXSTAT_UP_CMPLT      0x00008000
  493 #define XL_RXSTAT_UP_OVERRUN    0x00010000
  494 #define XL_RXSTAT_RUNT          0x00020000
  495 #define XL_RXSTAT_ALIGN         0x00040000
  496 #define XL_RXSTAT_CRC           0x00080000
  497 #define XL_RXSTAT_OVERSIZE      0x00100000
  498 #define XL_RXSTAT_DRIBBLE       0x00800000
  499 #define XL_RXSTAT_UP_OFLOW      0x01000000
  500 #define XL_RXSTAT_IPCKERR       0x02000000      /* 3c905B only */
  501 #define XL_RXSTAT_TCPCKERR      0x04000000      /* 3c905B only */
  502 #define XL_RXSTAT_UDPCKERR      0x08000000      /* 3c905B only */
  503 #define XL_RXSTAT_BUFEN         0x10000000      /* 3c905B only */
  504 #define XL_RXSTAT_IPCKOK        0x20000000      /* 3c905B only */
  505 #define XL_RXSTAT_TCPCOK        0x40000000      /* 3c905B only */
  506 #define XL_RXSTAT_UDPCKOK       0x80000000      /* 3c905B only */
  507 
  508 #define XL_TXSTAT_LENMASK       0x00001FFF
  509 #define XL_TXSTAT_CRCDIS        0x00002000
  510 #define XL_TXSTAT_TX_INTR       0x00008000
  511 #define XL_TXSTAT_DL_COMPLETE   0x00010000
  512 #define XL_TXSTAT_IPCKSUM       0x02000000      /* 3c905B only */
  513 #define XL_TXSTAT_TCPCKSUM      0x04000000      /* 3c905B only */
  514 #define XL_TXSTAT_UDPCKSUM      0x08000000      /* 3c905B only */
  515 #define XL_TXSTAT_RND_DEFEAT    0x10000000      /* 3c905B only */
  516 #define XL_TXSTAT_EMPTY         0x20000000      /* 3c905B only */
  517 #define XL_TXSTAT_DL_INTR       0x80000000
  518 
  519 #define XL_CAPABILITY_BM        0x20
  520 
  521 struct xl_type {
  522         u_int16_t               xl_vid;
  523         u_int16_t               xl_did;
  524         char                    *xl_name;
  525 };
  526 
  527 struct xl_mii_frame {
  528         u_int8_t                mii_stdelim;
  529         u_int8_t                mii_opcode;
  530         u_int8_t                mii_phyaddr;
  531         u_int8_t                mii_regaddr;
  532         u_int8_t                mii_turnaround;
  533         u_int16_t               mii_data;
  534 };
  535 
  536 /*
  537  * MII constants
  538  */
  539 #define XL_MII_STARTDELIM       0x01
  540 #define XL_MII_READOP           0x02
  541 #define XL_MII_WRITEOP          0x01
  542 #define XL_MII_TURNAROUND       0x02
  543 
  544 /*
  545  * The 3C905B adapters implement a few features that we want to
  546  * take advantage of, namely the multicast hash filter. With older
  547  * chips, you only have the option of turning on reception of all
  548  * multicast frames, which is kind of lame.
  549  *
  550  * We also use this to decide on a transmit strategy. For the 3c90xB
  551  * cards, we can use polled descriptor mode, which reduces CPU overhead.
  552  */
  553 #define XL_TYPE_905B    1
  554 #define XL_TYPE_90X     2
  555 
  556 #define XL_FLAG_FUNCREG                 0x0001
  557 #define XL_FLAG_PHYOK                   0x0002
  558 #define XL_FLAG_EEPROM_OFFSET_30        0x0004
  559 #define XL_FLAG_WEIRDRESET              0x0008
  560 #define XL_FLAG_8BITROM                 0x0010
  561 #define XL_FLAG_INVERT_LED_PWR          0x0020
  562 #define XL_FLAG_INVERT_MII_PWR          0x0040
  563 #define XL_FLAG_NO_XCVR_PWR             0x0080
  564 
  565 #define XL_NO_XCVR_PWR_MAGICBITS        0x0900
  566 
  567 struct xl_softc {
  568         struct arpcom           arpcom;         /* interface info */
  569         struct ifmedia          ifmedia;        /* media info */
  570         bus_space_handle_t      xl_bhandle;
  571         bus_space_tag_t         xl_btag;
  572         void                    *xl_intrhand;
  573         struct resource         *xl_irq;
  574         struct resource         *xl_res;
  575         device_t                xl_miibus;
  576         struct xl_type          *xl_info;       /* 3Com adapter info */
  577         u_int8_t                xl_unit;        /* interface number */
  578         u_int8_t                xl_type;
  579         u_int32_t               xl_xcvr;
  580         u_int16_t               xl_media;
  581         u_int16_t               xl_caps;
  582         u_int8_t                xl_stats_no_timeout;
  583         u_int16_t               xl_tx_thresh;
  584         int                     xl_if_flags;
  585         struct xl_list_data     *xl_ldata;
  586         struct xl_chain_data    xl_cdata;
  587         struct callout_handle   xl_stat_ch;
  588         int                     xl_flags;
  589         struct resource         *xl_fres;
  590         bus_space_handle_t      xl_fhandle;
  591         bus_space_tag_t         xl_ftag;
  592         struct mtx              xl_mtx;
  593 };
  594 
  595 #if 0
  596 /* These are a bit premature.  The driver still tries to sleep with locks. */
  597 #define XL_LOCK(_sc)            mtx_lock(&(_sc)->xl_mtx)
  598 #define XL_UNLOCK(_sc)          mtx_unlock(&(_sc)->xl_mtx)
  599 #else
  600 #define XL_LOCK(x)              do { } while (0)
  601 #define XL_UNLOCK(x)            do { } while (0)
  602 #endif
  603 
  604 #define xl_rx_goodframes(x) \
  605         ((x.xl_upper_frames_ok & 0x03) << 8) | x.xl_rx_frames_ok
  606 
  607 #define xl_tx_goodframes(x) \
  608         ((x.xl_upper_frames_ok & 0x30) << 4) | x.xl_tx_frames_ok
  609 
  610 struct xl_stats {
  611         u_int8_t                xl_carrier_lost;
  612         u_int8_t                xl_sqe_errs;
  613         u_int8_t                xl_tx_multi_collision;
  614         u_int8_t                xl_tx_single_collision;
  615         u_int8_t                xl_tx_late_collision;
  616         u_int8_t                xl_rx_overrun;
  617         u_int8_t                xl_tx_frames_ok;
  618         u_int8_t                xl_rx_frames_ok;
  619         u_int8_t                xl_tx_deferred;
  620         u_int8_t                xl_upper_frames_ok;
  621         u_int16_t               xl_rx_bytes_ok;
  622         u_int16_t               xl_tx_bytes_ok;
  623         u_int16_t               status;
  624 };
  625 
  626 /*
  627  * register space access macros
  628  */
  629 #define CSR_WRITE_4(sc, reg, val)       \
  630         bus_space_write_4(sc->xl_btag, sc->xl_bhandle, reg, val)
  631 #define CSR_WRITE_2(sc, reg, val)       \
  632         bus_space_write_2(sc->xl_btag, sc->xl_bhandle, reg, val)
  633 #define CSR_WRITE_1(sc, reg, val)       \
  634         bus_space_write_1(sc->xl_btag, sc->xl_bhandle, reg, val)
  635 
  636 #define CSR_READ_4(sc, reg)             \
  637         bus_space_read_4(sc->xl_btag, sc->xl_bhandle, reg)
  638 #define CSR_READ_2(sc, reg)             \
  639         bus_space_read_2(sc->xl_btag, sc->xl_bhandle, reg)
  640 #define CSR_READ_1(sc, reg)             \
  641         bus_space_read_1(sc->xl_btag, sc->xl_bhandle, reg)
  642 
  643 #define XL_SEL_WIN(x)   \
  644         CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_WINSEL | x)
  645 #define XL_TIMEOUT              1000
  646 
  647 /*
  648  * General constants that are fun to know.
  649  *
  650  * 3Com PCI vendor ID
  651  */
  652 #define TC_VENDORID             0x10B7
  653 
  654 /*
  655  * 3Com chip device IDs.
  656  */
  657 #define TC_DEVICEID_BOOMERANG_10BT              0x9000
  658 #define TC_DEVICEID_BOOMERANG_10BT_COMBO        0x9001
  659 #define TC_DEVICEID_BOOMERANG_10_100BT          0x9050
  660 #define TC_DEVICEID_BOOMERANG_100BT4            0x9051
  661 #define TC_DEVICEID_KRAKATOA_10BT               0x9004
  662 #define TC_DEVICEID_KRAKATOA_10BT_COMBO         0x9005
  663 #define TC_DEVICEID_KRAKATOA_10BT_TPC           0x9006
  664 #define TC_DEVICEID_CYCLONE_10FL                0x900A
  665 #define TC_DEVICEID_HURRICANE_10_100BT          0x9055
  666 #define TC_DEVICEID_CYCLONE_10_100BT4           0x9056
  667 #define TC_DEVICEID_CYCLONE_10_100_COMBO        0x9058
  668 #define TC_DEVICEID_CYCLONE_10_100FX            0x905A
  669 #define TC_DEVICEID_TORNADO_10_100BT            0x9200
  670 #define TC_DEVICEID_HURRICANE_10_100BT_SERV     0x9800
  671 #define TC_DEVICEID_TORNADO_10_100BT_SERV       0x9805
  672 #define TC_DEVICEID_HURRICANE_SOHO100TX         0x7646
  673 #define TC_DEVICEID_TORNADO_HOMECONNECT         0x4500
  674 #define TC_DEVICEID_HURRICANE_556               0x6055
  675 #define TC_DEVICEID_HURRICANE_556B              0x6056
  676 #define TC_DEVICEID_HURRICANE_575A              0x5057
  677 #define TC_DEVICEID_HURRICANE_575B              0x5157
  678 #define TC_DEVICEID_HURRICANE_575C              0x5257
  679 #define TC_DEVICEID_HURRICANE_656               0x6560
  680 #define TC_DEVICEID_HURRICANE_656B              0x6562
  681 #define TC_DEVICEID_TORNADO_656C                0x6564
  682 
  683 /*
  684  * PCI low memory base and low I/O base register, and
  685  * other PCI registers. Note: some are only available on
  686  * the 3c905B, in particular those that related to power management.
  687  */
  688 
  689 #define XL_PCI_VENDOR_ID        0x00
  690 #define XL_PCI_DEVICE_ID        0x02
  691 #define XL_PCI_COMMAND          0x04
  692 #define XL_PCI_STATUS           0x06
  693 #define XL_PCI_CLASSCODE        0x09
  694 #define XL_PCI_LATENCY_TIMER    0x0D
  695 #define XL_PCI_HEADER_TYPE      0x0E
  696 #define XL_PCI_LOIO             0x10
  697 #define XL_PCI_LOMEM            0x14
  698 #define XL_PCI_FUNCMEM          0x18
  699 #define XL_PCI_BIOSROM          0x30
  700 #define XL_PCI_INTLINE          0x3C
  701 #define XL_PCI_INTPIN           0x3D
  702 #define XL_PCI_MINGNT           0x3E
  703 #define XL_PCI_MINLAT           0x0F
  704 #define XL_PCI_RESETOPT         0x48
  705 #define XL_PCI_EEPROM_DATA      0x4C
  706 
  707 /* 3c905B-only registers */
  708 #define XL_PCI_CAPID            0xDC /* 8 bits */
  709 #define XL_PCI_NEXTPTR          0xDD /* 8 bits */
  710 #define XL_PCI_PWRMGMTCAP       0xDE /* 16 bits */
  711 #define XL_PCI_PWRMGMTCTRL      0xE0 /* 16 bits */
  712 
  713 #define XL_PSTATE_MASK          0x0003
  714 #define XL_PSTATE_D0            0x0000
  715 #define XL_PSTATE_D1            0x0002
  716 #define XL_PSTATE_D2            0x0002
  717 #define XL_PSTATE_D3            0x0003
  718 #define XL_PME_EN               0x0010
  719 #define XL_PME_STATUS           0x8000
  720 
  721 #ifdef __alpha__
  722 #undef vtophys
  723 #define vtophys(va)             alpha_XXX_dmamap((vm_offset_t)va)
  724                                 
  725 #endif
  726 
  727 #ifndef IFM_10_FL
  728 #define IFM_10_FL       13              /* 10baseFL - Fiber */
  729 #endif

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