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

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    1 /*
    2  * Copyright (c) 1997, 1998, 1999
    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  * $FreeBSD$
   33  */
   34 
   35 /*
   36  * Tigon register offsets. These are memory mapped registers
   37  * which can be accessed with the CSR_READ_4()/CSR_WRITE_4() macros.
   38  * Each register must be accessed using 32 bit operations.
   39  *
   40  * All reegisters are accessed through a 16K shared memory block.
   41  * The first group of registers are actually copies of the PCI
   42  * configuration space registers.
   43  */
   44 
   45 #define TI_PCI_ID                       0x000 /* PCI device/vendor ID */
   46 #define TI_PCI_CMDSTAT                  0x004
   47 #define TI_PCI_CLASSCODE                0x008
   48 #define TI_PCI_BIST                     0x00C
   49 #define TI_PCI_LOMEM                    0x010 /* Shared memory base address */
   50 #define TI_PCI_SUBSYS                   0x02C
   51 #define TI_PCI_ROMBASE                  0x030
   52 #define TI_PCI_INT                      0x03C
   53 
   54 #ifndef PCIM_CMD_MWIEN
   55 #define PCIM_CMD_MWIEN                  0x0010
   56 #endif
   57 
   58 /*
   59  * Alteon AceNIC PCI vendor/device ID.
   60  */
   61 #define ALT_VENDORID                    0x12AE
   62 #define ALT_DEVICEID_ACENIC             0x0001
   63 #define ALT_DEVICEID_ACENIC_COPPER      0x0002
   64 
   65 /*
   66  * 3Com 3c985 PCI vendor/device ID.
   67  */
   68 #define TC_VENDORID                     0x10B7
   69 #define TC_DEVICEID_3C985               0x0001
   70 
   71 /*
   72  * Netgear GA620 PCI vendor/device ID.
   73  */
   74 #define NG_VENDORID                     0x1385
   75 #define NG_DEVICEID_GA620               0x620A
   76 #define NG_DEVICEID_GA620T              0x630A
   77 
   78 /*
   79  * SGI device/vendor ID.
   80  */
   81 #define SGI_VENDORID                    0x10A9
   82 #define SGI_DEVICEID_TIGON              0x0009
   83 
   84 /*
   85  * DEC vendor ID, Farallon device ID. Apparently, Farallon used
   86  * the DEC vendor ID in their cards by mistake.
   87  */
   88 #define DEC_VENDORID                    0x1011
   89 #define DEC_DEVICEID_FARALLON_PN9000SX  0x001a
   90 
   91 /*
   92  * Tigon configuration and control registers.
   93  */
   94 #define TI_MISC_HOST_CTL                0x040
   95 #define TI_MISC_LOCAL_CTL               0x044
   96 #define TI_SEM_AB                       0x048 /* Tigon 2 only */
   97 #define TI_MISC_CONF                    0x050 /* Tigon 2 only */
   98 #define TI_TIMER_BITS                   0x054
   99 #define TI_TIMERREF                     0x058
  100 #define TI_PCI_STATE                    0x05C
  101 #define TI_MAIN_EVENT_A                 0x060
  102 #define TI_MAILBOX_EVENT_A              0x064
  103 #define TI_WINBASE                      0x068
  104 #define TI_WINDATA                      0x06C
  105 #define TI_MAIN_EVENT_B                 0x070 /* Tigon 2 only */
  106 #define TI_MAILBOX_EVENT_B              0x074 /* Tigon 2 only */
  107 #define TI_TIMERREF_B                   0x078 /* Tigon 2 only */
  108 #define TI_SERIAL                       0x07C
  109 
  110 /*
  111  * Misc host control bits.
  112  */
  113 #define TI_MHC_INTSTATE                 0x00000001
  114 #define TI_MHC_CLEARINT                 0x00000002
  115 #define TI_MHC_RESET                    0x00000008
  116 #define TI_MHC_BYTE_SWAP_ENB            0x00000010
  117 #define TI_MHC_WORD_SWAP_ENB            0x00000020
  118 #define TI_MHC_MASK_INTS                0x00000040
  119 #define TI_MHC_CHIP_REV_MASK            0xF0000000
  120 
  121 #define TI_MHC_BIGENDIAN_INIT   \
  122         (TI_MHC_BYTE_SWAP_ENB|TI_MHC_WORD_SWAP_ENB|TI_MHC_CLEARINT)
  123 
  124 #define TI_MHC_LITTLEENDIAN_INIT        \
  125         (TI_MHC_WORD_SWAP_ENB|TI_MHC_CLEARINT)
  126 
  127 /*
  128  * Tigon chip rev values. Rev 4 is the Tigon 1. Rev 6 is the Tigon 2.
  129  * Rev 5 is also the Tigon 2, but is a broken version which was never
  130  * used in any actual hardware, so we ignore it.
  131  */
  132 #define TI_REV_TIGON_I                  0x40000000
  133 #define TI_REV_TIGON_II                 0x60000000
  134 
  135 /*
  136  * Firmware revision that we want.
  137  */
  138 #define TI_FIRMWARE_MAJOR               0xc
  139 #define TI_FIRMWARE_MINOR               0x4
  140 #define TI_FIRMWARE_FIX                 0xd
  141 
  142 /*
  143  * Miscelaneous Local Control register.
  144  */
  145 #define TI_MLC_EE_WRITE_ENB             0x00000010
  146 #define TI_MLC_SRAM_BANK_SIZE           0x00000300 /* Tigon 2 only */
  147 #define TI_MLC_LOCALADDR_21             0x00004000
  148 #define TI_MLC_LOCALADDR_22             0x00008000
  149 #define TI_MLC_SBUS_WRITEERR            0x00080000
  150 #define TI_MLC_EE_CLK                   0x00100000
  151 #define TI_MLC_EE_TXEN                  0x00200000
  152 #define TI_MLC_EE_DOUT                  0x00400000
  153 #define TI_MLC_EE_DIN                   0x00800000
  154 
  155 /* Possible memory sizes. */
  156 #define TI_MLC_SRAM_BANK_DISA           0x00000000
  157 #define TI_MLC_SRAM_BANK_1024K          0x00000100
  158 #define TI_MLC_SRAM_BANK_512K           0x00000200
  159 #define TI_MLC_SRAM_BANK_256K           0x00000300
  160 
  161 /*
  162  * Offset of MAC address inside EEPROM.
  163  */
  164 #define TI_EE_MAC_OFFSET                0x8c
  165 
  166 #define TI_DMA_ASSIST                   0x11C
  167 #define TI_CPU_STATE                    0x140
  168 #define TI_CPU_PROGRAM_COUNTER          0x144
  169 #define TI_SRAM_ADDR                    0x154
  170 #define TI_SRAM_DATA                    0x158
  171 #define TI_GEN_0                        0x180
  172 #define TI_GEN_X                        0x1FC
  173 #define TI_MAC_TX_STATE                 0x200
  174 #define TI_MAC_RX_STATE                 0x220
  175 #define TI_CPU_CTL_B                    0x240 /* Tigon 2 only */
  176 #define TI_CPU_PROGRAM_COUNTER_B        0x244 /* Tigon 2 only */
  177 #define TI_SRAM_ADDR_B                  0x254 /* Tigon 2 only */
  178 #define TI_SRAM_DATA_B                  0x258 /* Tigon 2 only */
  179 #define TI_GEN_B_0                      0x280 /* Tigon 2 only */
  180 #define TI_GEN_B_X                      0x2FC /* Tigon 2 only */
  181 
  182 /*
  183  * Misc config register.
  184  */
  185 #define TI_MCR_SRAM_SYNCHRONOUS         0x00100000 /* Tigon 2 only */
  186 
  187 /*
  188  * PCI state register.
  189  */
  190 #define TI_PCISTATE_FORCE_RESET         0x00000001
  191 #define TI_PCISTATE_PROVIDE_LEN         0x00000002
  192 #define TI_PCISTATE_READ_MAXDMA         0x0000001C
  193 #define TI_PCISTATE_WRITE_MAXDMA        0x000000E0
  194 #define TI_PCISTATE_MINDMA              0x0000FF00
  195 #define TI_PCISTATE_FIFO_RETRY_ENB      0x00010000
  196 #define TI_PCISTATE_USE_MEM_RD_MULT     0x00020000
  197 #define TI_PCISTATE_NO_SWAP_READ_DMA    0x00040000
  198 #define TI_PCISTATE_NO_SWAP_WRITE_DMA   0x00080000
  199 #define TI_PCISTATE_66MHZ_BUS           0x00080000 /* Tigon 2 only */
  200 #define TI_PCISTATE_32BIT_BUS           0x00100000 /* Tigon 2 only */
  201 #define TI_PCISTATE_ENB_BYTE_ENABLES    0x00800000 /* Tigon 2 only */
  202 #define TI_PCISTATE_READ_CMD            0x0F000000
  203 #define TI_PCISTATE_WRITE_CMD           0xF0000000
  204 
  205 #define TI_PCI_READMAX_4                0x04
  206 #define TI_PCI_READMAX_16               0x08
  207 #define TI_PCI_READMAX_32               0x0C
  208 #define TI_PCI_READMAX_64               0x10
  209 #define TI_PCI_READMAX_128              0x14
  210 #define TI_PCI_READMAX_256              0x18
  211 #define TI_PCI_READMAX_1024             0x1C
  212 
  213 #define TI_PCI_WRITEMAX_4               0x20
  214 #define TI_PCI_WRITEMAX_16              0x40
  215 #define TI_PCI_WRITEMAX_32              0x60
  216 #define TI_PCI_WRITEMAX_64              0x80
  217 #define TI_PCI_WRITEMAX_128             0xA0
  218 #define TI_PCI_WRITEMAX_256             0xC0
  219 #define TI_PCI_WRITEMAX_1024            0xE0
  220 
  221 #define TI_PCI_READ_CMD                 0x06000000
  222 #define TI_PCI_WRITE_CMD                0x70000000
  223 
  224 /*
  225  * DMA state register.
  226  */
  227 #define TI_DMASTATE_ENABLE              0x00000001
  228 #define TI_DMASTATE_PAUSE               0x00000002
  229 
  230 /*
  231  * CPU state register.
  232  */
  233 #define TI_CPUSTATE_RESET               0x00000001
  234 #define TI_CPUSTATE_STEP                0x00000002
  235 #define TI_CPUSTATE_ROMFAIL             0x00000010
  236 #define TI_CPUSTATE_HALT                0x00010000
  237 /*
  238  * MAC TX state register
  239  */
  240 #define TI_TXSTATE_RESET                0x00000001
  241 #define TI_TXSTATE_ENB                  0x00000002
  242 #define TI_TXSTATE_STOP                 0x00000004
  243 
  244 /*
  245  * MAC RX state register
  246  */
  247 #define TI_RXSTATE_RESET                0x00000001
  248 #define TI_RXSTATE_ENB                  0x00000002
  249 #define TI_RXSTATE_STOP                 0x00000004
  250 
  251 /*
  252  * Tigon 2 mailbox registers. The mailbox area consists of 256 bytes
  253  * split into 64 bit registers. Only the lower 32 bits of each mailbox
  254  * are used.
  255  */
  256 #define TI_MB_HOSTINTR_HI               0x500
  257 #define TI_MB_HOSTINTR_LO               0x504
  258 #define TI_MB_HOSTINTR                  TI_MB_HOSTINTR_LO
  259 #define TI_MB_CMDPROD_IDX_HI            0x508
  260 #define TI_MB_CMDPROD_IDX_LO            0x50C
  261 #define TI_MB_CMDPROD_IDX               TI_MB_CMDPROD_IDX_LO
  262 #define TI_MB_SENDPROD_IDX_HI           0x510
  263 #define TI_MB_SENDPROD_IDX_LO           0x514
  264 #define TI_MB_SENDPROD_IDX              TI_MB_SENDPROD_IDX_LO
  265 #define TI_MB_STDRXPROD_IDX_HI          0x518 /* Tigon 2 only */
  266 #define TI_MB_STDRXPROD_IDX_LO          0x51C /* Tigon 2 only */
  267 #define TI_MB_STDRXPROD_IDX             TI_MB_STDRXPROD_IDX_LO
  268 #define TI_MB_JUMBORXPROD_IDX_HI        0x520 /* Tigon 2 only */
  269 #define TI_MB_JUMBORXPROD_IDX_LO        0x524 /* Tigon 2 only */
  270 #define TI_MB_JUMBORXPROD_IDX           TI_MB_JUMBORXPROD_IDX_LO
  271 #define TI_MB_MINIRXPROD_IDX_HI         0x528 /* Tigon 2 only */
  272 #define TI_MB_MINIRXPROD_IDX_LO         0x52C /* Tigon 2 only */
  273 #define TI_MB_MINIRXPROD_IDX            TI_MB_MINIRXPROD_IDX_LO
  274 #define TI_MB_RSVD                      0x530
  275 
  276 /*
  277  * Tigon 2 general communication registers. These are 64 and 32 bit
  278  * registers which are only valid after the firmware has been
  279  * loaded and started. They actually exist in NIC memory but are
  280  * mapped into the host memory via the shared memory region.
  281  *
  282  * The NIC internally maps these registers starting at address 0,
  283  * so to determine the NIC address of any of these registers, we
  284  * subtract 0x600 (the address of the first register).
  285  */
  286 
  287 #define TI_GCR_BASE                     0x600
  288 #define TI_GCR_MACADDR                  0x600
  289 #define TI_GCR_PAR0                     0x600
  290 #define TI_GCR_PAR1                     0x604
  291 #define TI_GCR_GENINFO_HI               0x608
  292 #define TI_GCR_GENINFO_LO               0x60C
  293 #define TI_GCR_MCASTADDR                0x610 /* obsolete */
  294 #define TI_GCR_MAR0                     0x610 /* obsolete */
  295 #define TI_GCR_MAR1                     0x614 /* obsolete */
  296 #define TI_GCR_OPMODE                   0x618
  297 #define TI_GCR_DMA_READCFG              0x61C
  298 #define TI_GCR_DMA_WRITECFG             0x620
  299 #define TI_GCR_TX_BUFFER_RATIO          0x624
  300 #define TI_GCR_EVENTCONS_IDX            0x628
  301 #define TI_GCR_CMDCONS_IDX              0x62C
  302 #define TI_GCR_TUNEPARMS                0x630
  303 #define TI_GCR_RX_COAL_TICKS            0x630
  304 #define TI_GCR_TX_COAL_TICKS            0x634
  305 #define TI_GCR_STAT_TICKS               0x638
  306 #define TI_GCR_TX_MAX_COAL_BD           0x63C
  307 #define TI_GCR_RX_MAX_COAL_BD           0x640
  308 #define TI_GCR_NIC_TRACING              0x644
  309 #define TI_GCR_GLINK                    0x648
  310 #define TI_GCR_LINK                     0x64C
  311 #define TI_GCR_NICTRACE_PTR             0x650
  312 #define TI_GCR_NICTRACE_START           0x654
  313 #define TI_GCR_NICTRACE_LEN             0x658
  314 #define TI_GCR_IFINDEX                  0x65C
  315 #define TI_GCR_IFMTU                    0x660
  316 #define TI_GCR_MASK_INTRS               0x664
  317 #define TI_GCR_GLINK_STAT               0x668
  318 #define TI_GCR_LINK_STAT                0x66C
  319 #define TI_GCR_RXRETURNCONS_IDX         0x680
  320 #define TI_GCR_CMDRING                  0x700
  321 
  322 #define TI_GCR_NIC_ADDR(x)              (x - TI_GCR_BASE);
  323 
  324 /*
  325  * Local memory window. The local memory window is a 2K shared
  326  * memory region which can be used to access the NIC's internal
  327  * SRAM. The window can be mapped to a given 2K region using
  328  * the TI_WINDOW_BASE register.
  329  */
  330 #define TI_WINDOW                       0x800
  331 #define TI_WINLEN                       0x800
  332 
  333 #define TI_TICKS_PER_SEC                1000000
  334 
  335 /*
  336  * Operation mode register.
  337  */
  338 #define TI_OPMODE_BYTESWAP_BD           0x00000002
  339 #define TI_OPMODE_WORDSWAP_BD           0x00000004
  340 #define TI_OPMODE_WARN_ENB              0x00000008 /* not yet implimented */
  341 #define TI_OPMODE_BYTESWAP_DATA         0x00000010
  342 #define TI_OPMODE_1_DMA_ACTIVE          0x00000040
  343 #define TI_OPMODE_SBUS                  0x00000100
  344 #define TI_OPMODE_DONT_FRAG_JUMBO       0x00000200
  345 #define TI_OPMODE_INCLUDE_CRC           0x00000400
  346 #define TI_OPMODE_RX_BADFRAMES          0x00000800
  347 #define TI_OPMODE_NO_EVENT_INTRS        0x00001000
  348 #define TI_OPMODE_NO_TX_INTRS           0x00002000
  349 #define TI_OPMODE_NO_RX_INTRS           0x00004000
  350 #define TI_OPMODE_FATAL_ENB             0x40000000 /* not yet implimented */
  351 
  352 /*
  353  * DMA configuration thresholds.
  354  */
  355 #define TI_DMA_STATE_THRESH_16W         0x00000100
  356 #define TI_DMA_STATE_THRESH_8W          0x00000080
  357 #define TI_DMA_STATE_THRESH_4W          0x00000040
  358 #define TI_DMA_STATE_THRESH_2W          0x00000020
  359 #define TI_DMA_STATE_THRESH_1W          0x00000010
  360 
  361 #define TI_DMA_STATE_FORCE_32_BIT       0x00000008
  362 
  363 /*
  364  * Gigabit link status bits.
  365  */
  366 #define TI_GLNK_SENSE_NO_BEG            0x00002000
  367 #define TI_GLNK_LOOPBACK                0x00004000
  368 #define TI_GLNK_PREF                    0x00008000
  369 #define TI_GLNK_1000MB                  0x00040000
  370 #define TI_GLNK_FULL_DUPLEX             0x00080000
  371 #define TI_GLNK_TX_FLOWCTL_Y            0x00200000 /* Tigon 2 only */
  372 #define TI_GLNK_RX_FLOWCTL_Y            0x00800000
  373 #define TI_GLNK_AUTONEGENB              0x20000000
  374 #define TI_GLNK_ENB                     0x40000000
  375 
  376 /*
  377  * Link status bits.
  378  */
  379 #define TI_LNK_LOOPBACK                 0x00004000
  380 #define TI_LNK_PREF                     0x00008000
  381 #define TI_LNK_10MB                     0x00010000
  382 #define TI_LNK_100MB                    0x00020000
  383 #define TI_LNK_1000MB                   0x00040000
  384 #define TI_LNK_FULL_DUPLEX              0x00080000
  385 #define TI_LNK_HALF_DUPLEX              0x00100000
  386 #define TI_LNK_TX_FLOWCTL_Y             0x00200000 /* Tigon 2 only */
  387 #define TI_LNK_RX_FLOWCTL_Y             0x00800000
  388 #define TI_LNK_AUTONEGENB               0x20000000
  389 #define TI_LNK_ENB                      0x40000000
  390 
  391 /*
  392  * Ring size constants.
  393  */
  394 #define TI_EVENT_RING_CNT       256
  395 #define TI_CMD_RING_CNT         64
  396 #define TI_STD_RX_RING_CNT      512
  397 #define TI_JUMBO_RX_RING_CNT    256
  398 #define TI_MINI_RX_RING_CNT     1024
  399 #define TI_RETURN_RING_CNT      2048
  400 
  401 /*
  402  * Possible TX ring sizes.
  403  */
  404 #define TI_TX_RING_CNT_128      128
  405 #define TI_TX_RING_BASE_128     0x3800
  406 
  407 #define TI_TX_RING_CNT_256      256
  408 #define TI_TX_RING_BASE_256     0x3000
  409 
  410 #define TI_TX_RING_CNT_512      512
  411 #define TI_TX_RING_BASE_512     0x2000
  412 
  413 #define TI_TX_RING_CNT          TI_TX_RING_CNT_512
  414 #define TI_TX_RING_BASE         TI_TX_RING_BASE_512
  415 
  416 /*
  417  * The Tigon can have up to 8MB of external SRAM, however the Tigon 1
  418  * is limited to 2MB total, and in general I think most adapters have
  419  * around 1MB. We use this value for zeroing the NIC's SRAM, so to
  420  * be safe we use the largest possible value (zeroing memory that
  421  * isn't there doesn't hurt anything).
  422  */
  423 #define TI_MEM_MAX              0x7FFFFF
  424 
  425 /*
  426  * Even on the alpha, pci addresses are 32-bit quantities
  427  */
  428 
  429 #ifdef __64_bit_pci_addressing__ 
  430 typedef struct {
  431         u_int64_t               ti_addr;
  432 } ti_hostaddr;
  433 #define TI_HOSTADDR(x)  x.ti_addr
  434 #else
  435 typedef struct {
  436         u_int32_t               ti_addr_hi;
  437         u_int32_t               ti_addr_lo;
  438 } ti_hostaddr;
  439 #define TI_HOSTADDR(x)  x.ti_addr_lo
  440 #endif
  441 
  442 /*
  443  * Ring control block structure. The rules for the max_len field
  444  * are as follows:
  445  * 
  446  * For the send ring, max_len indicates the number of entries in the
  447  * ring (128, 256 or 512).
  448  *
  449  * For the standard receive ring, max_len indicates the threshold
  450  * used to decide when a frame should be put in the jumbo receive ring
  451  * instead of the standard one.
  452  *
  453  * For the mini ring, max_len indicates the size of the buffers in the
  454  * ring. This is the value used to decide when a frame is small enough
  455  * to be placed in the mini ring.
  456  *
  457  * For the return receive ring, max_len indicates the number of entries
  458  * in the ring. It can be one of 2048, 1024 or 0 (which is the same as
  459  * 2048 for backwards compatibility). The value 1024 can only be used
  460  * if the mini ring is disabled.
  461  */
  462 struct ti_rcb {
  463         ti_hostaddr             ti_hostaddr;
  464 #if BYTE_ORDER == BIG_ENDIAN
  465         u_int16_t               ti_max_len;
  466         u_int16_t               ti_flags;
  467 #else
  468         u_int16_t               ti_flags;
  469         u_int16_t               ti_max_len;
  470 #endif
  471         u_int32_t               ti_unused;
  472 };
  473 
  474 #define TI_RCB_FLAG_TCP_UDP_CKSUM       0x00000001
  475 #define TI_RCB_FLAG_IP_CKSUM            0x00000002
  476 #define TI_RCB_FLAG_NO_PHDR_CKSUM       0x00000008
  477 #define TI_RCB_FLAG_VLAN_ASSIST         0x00000010
  478 #define TI_RCB_FLAG_COAL_UPD_ONLY       0x00000020
  479 #define TI_RCB_FLAG_HOST_RING           0x00000040
  480 #define TI_RCB_FLAG_IEEE_SNAP_CKSUM     0x00000080
  481 #define TI_RCB_FLAG_USE_EXT_RX_BD       0x00000100
  482 #define TI_RCB_FLAG_RING_DISABLED       0x00000200
  483 
  484 struct ti_producer {
  485         u_int32_t               ti_idx;
  486         u_int32_t               ti_unused;
  487 };
  488 
  489 /*
  490  * Tigon statistics counters.
  491  */
  492 struct ti_stats {
  493         /*
  494          * MAC stats, taken from RFC 1643, ethernet-like MIB
  495          */
  496         volatile u_int32_t dot3StatsAlignmentErrors;            /* 0 */
  497         volatile u_int32_t dot3StatsFCSErrors;                  /* 1 */
  498         volatile u_int32_t dot3StatsSingleCollisionFrames;      /* 2 */
  499         volatile u_int32_t dot3StatsMultipleCollisionFrames;    /* 3 */
  500         volatile u_int32_t dot3StatsSQETestErrors;              /* 4 */
  501         volatile u_int32_t dot3StatsDeferredTransmissions;      /* 5 */
  502         volatile u_int32_t dot3StatsLateCollisions;             /* 6 */
  503         volatile u_int32_t dot3StatsExcessiveCollisions;        /* 7 */
  504         volatile u_int32_t dot3StatsInternalMacTransmitErrors;  /* 8 */
  505         volatile u_int32_t dot3StatsCarrierSenseErrors;         /* 9 */
  506         volatile u_int32_t dot3StatsFrameTooLongs;              /* 10 */
  507         volatile u_int32_t dot3StatsInternalMacReceiveErrors;   /* 11 */
  508         /*
  509          * interface stats, taken from RFC 1213, MIB-II, interfaces group
  510          */
  511         volatile u_int32_t ifIndex;                             /* 12 */
  512         volatile u_int32_t ifType;                              /* 13 */
  513         volatile u_int32_t ifMtu;                               /* 14 */
  514         volatile u_int32_t ifSpeed;                             /* 15 */
  515         volatile u_int32_t ifAdminStatus;                       /* 16 */
  516 #define IF_ADMIN_STATUS_UP      1
  517 #define IF_ADMIN_STATUS_DOWN    2
  518 #define IF_ADMIN_STATUS_TESTING 3
  519         volatile u_int32_t ifOperStatus;                        /* 17 */
  520 #define IF_OPER_STATUS_UP       1
  521 #define IF_OPER_STATUS_DOWN     2
  522 #define IF_OPER_STATUS_TESTING  3
  523 #define IF_OPER_STATUS_UNKNOWN  4
  524 #define IF_OPER_STATUS_DORMANT  5
  525         volatile u_int32_t ifLastChange;                        /* 18 */
  526         volatile u_int32_t ifInDiscards;                        /* 19 */
  527         volatile u_int32_t ifInErrors;                          /* 20 */
  528         volatile u_int32_t ifInUnknownProtos;                   /* 21 */
  529         volatile u_int32_t ifOutDiscards;                       /* 22 */
  530         volatile u_int32_t ifOutErrors;                         /* 23 */
  531         volatile u_int32_t ifOutQLen;     /* deprecated */      /* 24 */
  532         volatile u_int8_t  ifPhysAddress[8]; /* 8 bytes */      /* 25 - 26 */
  533         volatile u_int8_t  ifDescr[32];                         /* 27 - 34 */
  534         u_int32_t alignIt;      /* align to 64 bit for u_int64_ts following */
  535         /*
  536          * more interface stats, taken from RFC 1573, MIB-IIupdate,
  537          * interfaces group
  538          */
  539         volatile u_int64_t ifHCInOctets;                        /* 36 - 37 */
  540         volatile u_int64_t ifHCInUcastPkts;                     /* 38 - 39 */
  541         volatile u_int64_t ifHCInMulticastPkts;                 /* 40 - 41 */
  542         volatile u_int64_t ifHCInBroadcastPkts;                 /* 42 - 43 */
  543         volatile u_int64_t ifHCOutOctets;                       /* 44 - 45 */
  544         volatile u_int64_t ifHCOutUcastPkts;                    /* 46 - 47 */
  545         volatile u_int64_t ifHCOutMulticastPkts;                /* 48 - 49 */
  546         volatile u_int64_t ifHCOutBroadcastPkts;                /* 50 - 51 */
  547         volatile u_int32_t ifLinkUpDownTrapEnable;              /* 52 */
  548         volatile u_int32_t ifHighSpeed;                         /* 53 */
  549         volatile u_int32_t ifPromiscuousMode;                   /* 54 */
  550         volatile u_int32_t ifConnectorPresent; /* follow link state 55 */
  551         /*
  552          * Host Commands
  553          */
  554         volatile u_int32_t nicCmdsHostState;                    /* 56 */
  555         volatile u_int32_t nicCmdsFDRFiltering;                 /* 57 */
  556         volatile u_int32_t nicCmdsSetRecvProdIndex;             /* 58 */
  557         volatile u_int32_t nicCmdsUpdateGencommStats;           /* 59 */
  558         volatile u_int32_t nicCmdsResetJumboRing;               /* 60 */
  559         volatile u_int32_t nicCmdsAddMCastAddr;                 /* 61 */
  560         volatile u_int32_t nicCmdsDelMCastAddr;                 /* 62 */
  561         volatile u_int32_t nicCmdsSetPromiscMode;               /* 63 */
  562         volatile u_int32_t nicCmdsLinkNegotiate;                /* 64 */
  563         volatile u_int32_t nicCmdsSetMACAddr;                   /* 65 */
  564         volatile u_int32_t nicCmdsClearProfile;                 /* 66 */
  565         volatile u_int32_t nicCmdsSetMulticastMode;             /* 67 */
  566         volatile u_int32_t nicCmdsClearStats;                   /* 68 */
  567         volatile u_int32_t nicCmdsSetRecvJumboProdIndex;        /* 69 */
  568         volatile u_int32_t nicCmdsSetRecvMiniProdIndex;         /* 70 */
  569         volatile u_int32_t nicCmdsRefreshStats;                 /* 71 */
  570         volatile u_int32_t nicCmdsUnknown;                      /* 72 */
  571         /*
  572          * NIC Events
  573          */
  574         volatile u_int32_t nicEventsNICFirmwareOperational;     /* 73 */
  575         volatile u_int32_t nicEventsStatsUpdated;               /* 74 */
  576         volatile u_int32_t nicEventsLinkStateChanged;           /* 75 */
  577         volatile u_int32_t nicEventsError;                      /* 76 */
  578         volatile u_int32_t nicEventsMCastListUpdated;           /* 77 */
  579         volatile u_int32_t nicEventsResetJumboRing;             /* 78 */
  580         /*
  581          * Ring manipulation
  582          */
  583         volatile u_int32_t nicRingSetSendProdIndex;             /* 79 */
  584         volatile u_int32_t nicRingSetSendConsIndex;             /* 80 */
  585         volatile u_int32_t nicRingSetRecvReturnProdIndex;       /* 81 */
  586         /*
  587          * Interrupts
  588          */
  589         volatile u_int32_t nicInterrupts;                       /* 82 */
  590         volatile u_int32_t nicAvoidedInterrupts;                /* 83 */
  591         /*
  592          * BD Coalessing Thresholds
  593          */
  594         volatile u_int32_t nicEventThresholdHit;                /* 84 */
  595         volatile u_int32_t nicSendThresholdHit;                 /* 85 */
  596         volatile u_int32_t nicRecvThresholdHit;                 /* 86 */
  597         /*
  598          * DMA Attentions
  599          */
  600         volatile u_int32_t nicDmaRdOverrun;                     /* 87 */
  601         volatile u_int32_t nicDmaRdUnderrun;                    /* 88 */
  602         volatile u_int32_t nicDmaWrOverrun;                     /* 89 */
  603         volatile u_int32_t nicDmaWrUnderrun;                    /* 90 */
  604         volatile u_int32_t nicDmaWrMasterAborts;                /* 91 */
  605         volatile u_int32_t nicDmaRdMasterAborts;                /* 92 */
  606         /*
  607          * NIC Resources
  608          */
  609         volatile u_int32_t nicDmaWriteRingFull;                 /* 93 */
  610         volatile u_int32_t nicDmaReadRingFull;                  /* 94 */
  611         volatile u_int32_t nicEventRingFull;                    /* 95 */
  612         volatile u_int32_t nicEventProducerRingFull;            /* 96 */
  613         volatile u_int32_t nicTxMacDescrRingFull;               /* 97 */
  614         volatile u_int32_t nicOutOfTxBufSpaceFrameRetry;        /* 98 */
  615         volatile u_int32_t nicNoMoreWrDMADescriptors;           /* 99 */
  616         volatile u_int32_t nicNoMoreRxBDs;                      /* 100 */
  617         volatile u_int32_t nicNoSpaceInReturnRing;              /* 101 */
  618         volatile u_int32_t nicSendBDs;            /* current count 102 */
  619         volatile u_int32_t nicRecvBDs;            /* current count 103 */
  620         volatile u_int32_t nicJumboRecvBDs;       /* current count 104 */
  621         volatile u_int32_t nicMiniRecvBDs;        /* current count 105 */
  622         volatile u_int32_t nicTotalRecvBDs;       /* current count 106 */
  623         volatile u_int32_t nicTotalSendBDs;       /* current count 107 */
  624         volatile u_int32_t nicJumboSpillOver;                   /* 108 */
  625         volatile u_int32_t nicSbusHangCleared;                  /* 109 */
  626         volatile u_int32_t nicEnqEventDelayed;                  /* 110 */
  627         /*
  628          * Stats from MAC rx completion
  629          */
  630         volatile u_int32_t nicMacRxLateColls;                   /* 111 */
  631         volatile u_int32_t nicMacRxLinkLostDuringPkt;           /* 112 */
  632         volatile u_int32_t nicMacRxPhyDecodeErr;                /* 113 */
  633         volatile u_int32_t nicMacRxMacAbort;                    /* 114 */
  634         volatile u_int32_t nicMacRxTruncNoResources;            /* 115 */
  635         /*
  636          * Stats from the mac_stats area
  637          */
  638         volatile u_int32_t nicMacRxDropUla;                     /* 116 */
  639         volatile u_int32_t nicMacRxDropMcast;                   /* 117 */
  640         volatile u_int32_t nicMacRxFlowControl;                 /* 118 */
  641         volatile u_int32_t nicMacRxDropSpace;                   /* 119 */
  642         volatile u_int32_t nicMacRxColls;                       /* 120 */
  643         /*
  644          * MAC RX Attentions
  645          */
  646         volatile u_int32_t nicMacRxTotalAttns;                  /* 121 */
  647         volatile u_int32_t nicMacRxLinkAttns;                   /* 122 */
  648         volatile u_int32_t nicMacRxSyncAttns;                   /* 123 */
  649         volatile u_int32_t nicMacRxConfigAttns;                 /* 124 */
  650         volatile u_int32_t nicMacReset;                         /* 125 */
  651         volatile u_int32_t nicMacRxBufDescrAttns;               /* 126 */
  652         volatile u_int32_t nicMacRxBufAttns;                    /* 127 */
  653         volatile u_int32_t nicMacRxZeroFrameCleanup;            /* 128 */
  654         volatile u_int32_t nicMacRxOneFrameCleanup;             /* 129 */
  655         volatile u_int32_t nicMacRxMultipleFrameCleanup;        /* 130 */
  656         volatile u_int32_t nicMacRxTimerCleanup;                /* 131 */
  657         volatile u_int32_t nicMacRxDmaCleanup;                  /* 132 */
  658         /*
  659          * Stats from the mac_stats area
  660          */
  661         volatile u_int32_t nicMacTxCollisionHistogram[15];      /* 133 */
  662         /*
  663          * MAC TX Attentions
  664          */
  665         volatile u_int32_t nicMacTxTotalAttns;                  /* 134 */
  666         /*
  667          * NIC Profile
  668          */
  669         volatile u_int32_t nicProfile[32];                      /* 135 */
  670         /*
  671          * Pat to 1024 bytes.
  672          */
  673         u_int32_t               pad[75];
  674 };
  675 /*
  676  * Tigon general information block. This resides in host memory
  677  * and contains the status counters, ring control blocks and
  678  * producer pointers.
  679  */
  680 
  681 struct ti_gib {
  682         struct ti_stats         ti_stats;
  683         struct ti_rcb           ti_ev_rcb;
  684         struct ti_rcb           ti_cmd_rcb;
  685         struct ti_rcb           ti_tx_rcb;
  686         struct ti_rcb           ti_std_rx_rcb;
  687         struct ti_rcb           ti_jumbo_rx_rcb;
  688         struct ti_rcb           ti_mini_rx_rcb;
  689         struct ti_rcb           ti_return_rcb;
  690         ti_hostaddr             ti_ev_prodidx_ptr;
  691         ti_hostaddr             ti_return_prodidx_ptr;
  692         ti_hostaddr             ti_tx_considx_ptr;
  693         ti_hostaddr             ti_refresh_stats_ptr;
  694 };
  695 
  696 /*
  697  * Buffer descriptor structures. There are basically three types
  698  * of structures: normal receive descriptors, extended receive
  699  * descriptors and transmit descriptors. The extended receive
  700  * descriptors are optionally used only for the jumbo receive ring.
  701  */
  702 
  703 struct ti_rx_desc {
  704         ti_hostaddr             ti_addr;
  705 #if BYTE_ORDER == BIG_ENDIAN
  706         u_int16_t               ti_idx;
  707         u_int16_t               ti_len;
  708 #else
  709         u_int16_t               ti_len;
  710         u_int16_t               ti_idx;
  711 #endif
  712 #if BYTE_ORDER == BIG_ENDIAN
  713         u_int16_t               ti_type;
  714         u_int16_t               ti_flags;
  715 #else
  716         u_int16_t               ti_flags;
  717         u_int16_t               ti_type;
  718 #endif
  719 #if BYTE_ORDER == BIG_ENDIAN
  720         u_int16_t               ti_ip_cksum;
  721         u_int16_t               ti_tcp_udp_cksum;
  722 #else
  723         u_int16_t               ti_tcp_udp_cksum;
  724         u_int16_t               ti_ip_cksum;
  725 #endif
  726 #if BYTE_ORDER == BIG_ENDIAN
  727         u_int16_t               ti_error_flags;
  728         u_int16_t               ti_vlan_tag;
  729 #else
  730         u_int16_t               ti_vlan_tag;
  731         u_int16_t               ti_error_flags;
  732 #endif
  733         u_int32_t               ti_rsvd;
  734         u_int32_t               ti_opaque;
  735 };
  736 
  737 struct ti_rx_desc_ext {
  738         ti_hostaddr             ti_addr1;
  739         ti_hostaddr             ti_addr2;
  740         ti_hostaddr             ti_addr3;
  741 #if BYTE_ORDER == BIG_ENDIAN
  742         u_int16_t               ti_len1;
  743         u_int16_t               ti_len2;
  744 #else
  745         u_int16_t               ti_len2;
  746         u_int16_t               ti_len1;
  747 #endif
  748 #if BYTE_ORDER == BIG_ENDIAN
  749         u_int16_t               ti_len3;
  750         u_int16_t               ti_rsvd0;
  751 #else
  752         u_int16_t               ti_rsvd0;
  753         u_int16_t               ti_len3;
  754 #endif
  755         ti_hostaddr             ti_addr0;
  756 #if BYTE_ORDER == BIG_ENDIAN
  757         u_int16_t               ti_idx;
  758         u_int16_t               ti_len0;
  759 #else
  760         u_int16_t               ti_len0;
  761         u_int16_t               ti_idx;
  762 #endif
  763 #if BYTE_ORDER == BIG_ENDIAN
  764         u_int16_t               ti_type;
  765         u_int16_t               ti_flags;
  766 #else
  767         u_int16_t               ti_flags;
  768         u_int16_t               ti_type;
  769 #endif
  770 #if BYTE_ORDER == BIG_ENDIAN
  771         u_int16_t               ti_ip_cksum;
  772         u_int16_t               ti_tcp_udp_cksum;
  773 #else
  774         u_int16_t               ti_tcp_udp_cksum;
  775         u_int16_t               ti_ip_cksum;
  776 #endif
  777 #if BYTE_ORDER == BIG_ENDIAN
  778         u_int16_t               ti_error_flags;
  779         u_int16_t               ti_vlan_tag;
  780 #else
  781         u_int16_t               ti_vlan_tag;
  782         u_int16_t               ti_error_flags;
  783 #endif
  784         u_int32_t               ti_rsvd1;
  785         u_int32_t               ti_opaque;
  786 };
  787 
  788 /*
  789  * Transmit descriptors are, mercifully, very small.
  790  */
  791 struct ti_tx_desc {
  792         ti_hostaddr             ti_addr;
  793 #if BYTE_ORDER == BIG_ENDIAN
  794         u_int16_t               ti_len;
  795         u_int16_t               ti_flags;
  796 #else
  797         u_int16_t               ti_flags;
  798         u_int16_t               ti_len;
  799 #endif
  800 #if BYTE_ORDER == BIG_ENDIAN
  801         u_int16_t               ti_rsvd;
  802         u_int16_t               ti_vlan_tag;
  803 #else
  804         u_int16_t               ti_vlan_tag;
  805         u_int16_t               ti_rsvd;
  806 #endif
  807 };
  808 
  809 /*
  810  * NOTE!  On the Alpha, we have an alignment constraint.
  811  * The first thing in the packet is a 14-byte Ethernet header.
  812  * This means that the packet is misaligned.  To compensate,
  813  * we actually offset the data 2 bytes into the cluster.  This
  814  * alignes the packet after the Ethernet header at a 32-bit
  815  * boundary.
  816  */
  817 
  818 #define ETHER_ALIGN 2
  819 
  820 #define TI_FRAMELEN             1518
  821 #define TI_JUMBO_FRAMELEN       9018
  822 #define TI_JUMBO_MTU            (TI_JUMBO_FRAMELEN-ETHER_HDR_LEN-ETHER_CRC_LEN)
  823 #define TI_PAGE_SIZE            PAGE_SIZE
  824 #define TI_MIN_FRAMELEN         60
  825 
  826 /*
  827  * Buffer descriptor error flags.
  828  */
  829 #define TI_BDERR_CRC                    0x0001
  830 #define TI_BDERR_COLLDETECT             0x0002
  831 #define TI_BDERR_LINKLOST               0x0004
  832 #define TI_BDERR_DECODE                 0x0008
  833 #define TI_BDERR_ODD_NIBBLES            0x0010
  834 #define TI_BDERR_MAC_ABRT               0x0020
  835 #define TI_BDERR_RUNT                   0x0040
  836 #define TI_BDERR_TRUNC                  0x0080
  837 #define TI_BDERR_GIANT                  0x0100
  838 
  839 /*
  840  * Buffer descriptor flags.
  841  */
  842 #define TI_BDFLAG_TCP_UDP_CKSUM         0x0001
  843 #define TI_BDFLAG_IP_CKSUM              0x0002
  844 #define TI_BDFLAG_END                   0x0004
  845 #define TI_BDFLAG_MORE                  0x0008
  846 #define TI_BDFLAG_JUMBO_RING            0x0010
  847 #define TI_BDFLAG_UCAST_PKT             0x0020
  848 #define TI_BDFLAG_MCAST_PKT             0x0040
  849 #define TI_BDFLAG_BCAST_PKT             0x0060
  850 #define TI_BDFLAG_IP_FRAG               0x0080
  851 #define TI_BDFLAG_IP_FRAG_END           0x0100
  852 #define TI_BDFLAG_VLAN_TAG              0x0200
  853 #define TI_BDFLAG_ERROR                 0x0400
  854 #define TI_BDFLAG_COAL_NOW              0x0800
  855 #define TI_BDFLAG_MINI_RING             0x1000
  856 
  857 /*
  858  * Descriptor type flags. I think these only have meaning for
  859  * the Tigon 1. I had to extract them from the sample driver source
  860  * since they aren't in the manual.
  861  */
  862 #define TI_BDTYPE_TYPE_NULL                     0x0000
  863 #define TI_BDTYPE_SEND_BD                       0x0001
  864 #define TI_BDTYPE_RECV_BD                       0x0002
  865 #define TI_BDTYPE_RECV_JUMBO_BD                 0x0003
  866 #define TI_BDTYPE_RECV_BD_LAST                  0x0004
  867 #define TI_BDTYPE_SEND_DATA                     0x0005
  868 #define TI_BDTYPE_SEND_DATA_LAST                0x0006
  869 #define TI_BDTYPE_RECV_DATA                     0x0007
  870 #define TI_BDTYPE_RECV_DATA_LAST                0x000b
  871 #define TI_BDTYPE_EVENT_RUPT                    0x000c
  872 #define TI_BDTYPE_EVENT_NO_RUPT                 0x000d
  873 #define TI_BDTYPE_ODD_START                     0x000e
  874 #define TI_BDTYPE_UPDATE_STATS                  0x000f
  875 #define TI_BDTYPE_SEND_DUMMY_DMA                0x0010
  876 #define TI_BDTYPE_EVENT_PROD                    0x0011
  877 #define TI_BDTYPE_TX_CONS                       0x0012
  878 #define TI_BDTYPE_RX_PROD                       0x0013
  879 #define TI_BDTYPE_REFRESH_STATS                 0x0014
  880 #define TI_BDTYPE_SEND_DATA_LAST_VLAN           0x0015
  881 #define TI_BDTYPE_SEND_DATA_COAL                0x0016
  882 #define TI_BDTYPE_SEND_DATA_LAST_COAL           0x0017
  883 #define TI_BDTYPE_SEND_DATA_LAST_VLAN_COAL      0x0018
  884 #define TI_BDTYPE_TX_CONS_NO_INTR               0x0019
  885 
  886 /*
  887  * Tigon command structure.
  888  */
  889 struct ti_cmd_desc {
  890 #if BYTE_ORDER == BIG_ENDIAN
  891         u_int32_t               ti_cmd:8;
  892         u_int32_t               ti_code:12;
  893         u_int32_t               ti_idx:12;
  894 #else
  895         u_int32_t               ti_idx:12;
  896         u_int32_t               ti_code:12;
  897         u_int32_t               ti_cmd:8;
  898 #endif
  899 };
  900 
  901 #define TI_CMD_HOST_STATE               0x01
  902 #define TI_CMD_CODE_STACK_UP            0x01
  903 #define TI_CMD_CODE_STACK_DOWN          0x02
  904 
  905 /*
  906  * This command enables software address filtering. It's a workaround
  907  * for a bug in the Tigon 1 and not implemented for the Tigon 2.
  908  */
  909 #define TI_CMD_FDR_FILTERING            0x02
  910 #define TI_CMD_CODE_FILT_ENB            0x01
  911 #define TI_CMD_CODE_FILT_DIS            0x02
  912 
  913 #define TI_CMD_SET_RX_PROD_IDX          0x03 /* obsolete */
  914 #define TI_CMD_UPDATE_GENCOM            0x04
  915 #define TI_CMD_RESET_JUMBO_RING         0x05
  916 #define TI_CMD_SET_PARTIAL_RX_CNT       0x06
  917 #define TI_CMD_ADD_MCAST_ADDR           0x08 /* obsolete */
  918 #define TI_CMD_DEL_MCAST_ADDR           0x09 /* obsolete */
  919 
  920 #define TI_CMD_SET_PROMISC_MODE         0x0A
  921 #define TI_CMD_CODE_PROMISC_ENB         0x01
  922 #define TI_CMD_CODE_PROMISC_DIS         0x02
  923 
  924 #define TI_CMD_LINK_NEGOTIATION         0x0B
  925 #define TI_CMD_CODE_NEGOTIATE_BOTH      0x00
  926 #define TI_CMD_CODE_NEGOTIATE_GIGABIT   0x01
  927 #define TI_CMD_CODE_NEGOTIATE_10_100    0x02
  928 
  929 #define TI_CMD_SET_MAC_ADDR             0x0C
  930 #define TI_CMD_CLR_PROFILE              0x0D
  931 
  932 #define TI_CMD_SET_ALLMULTI             0x0E
  933 #define TI_CMD_CODE_ALLMULTI_ENB        0x01
  934 #define TI_CMD_CODE_ALLMULTI_DIS        0x02
  935 
  936 #define TI_CMD_CLR_STATS                0x0F
  937 #define TI_CMD_SET_RX_JUMBO_PROD_IDX    0x10 /* obsolete */
  938 #define TI_CMD_RFRSH_STATS              0x11
  939 
  940 #define TI_CMD_EXT_ADD_MCAST            0x12
  941 #define TI_CMD_EXT_DEL_MCAST            0x13
  942 
  943 /*
  944  * Utility macros to make issuing commands a little simpler. Assumes
  945  * that 'sc' and 'cmd' are in local scope.
  946  */
  947 #define TI_DO_CMD(x, y, z)              \
  948         cmd.ti_cmd = x;                 \
  949         cmd.ti_code = y;                \
  950         cmd.ti_idx = z;                 \
  951         ti_cmd(sc, &cmd);
  952 
  953 #define TI_DO_CMD_EXT(x, y, z, v, w)    \
  954         cmd.ti_cmd = x;                 \
  955         cmd.ti_code = y;                \
  956         cmd.ti_idx = z;                 \
  957         ti_cmd_ext(sc, &cmd, v, w);
  958 
  959 /*
  960  * Other utility macros.
  961  */
  962 #define TI_INC(x, y)    (x) = (x + 1) % y
  963 
  964 #define TI_UPDATE_JUMBOPROD(x, y)                                       \
  965         if (x->ti_hwrev == TI_HWREV_TIGON) {                            \
  966                 TI_DO_CMD(TI_CMD_SET_RX_JUMBO_PROD_IDX, 0, y);  \
  967         } else {                                                        \
  968                 CSR_WRITE_4(x, TI_MB_JUMBORXPROD_IDX, y);               \
  969         }
  970 
  971 #define TI_UPDATE_MINIPROD(x, y)                                        \
  972                 CSR_WRITE_4(x, TI_MB_MINIRXPROD_IDX, y);
  973 
  974 #define TI_UPDATE_STDPROD(x, y)                                         \
  975         if (x->ti_hwrev == TI_HWREV_TIGON) {                            \
  976                 TI_DO_CMD(TI_CMD_SET_RX_PROD_IDX, 0, y);                \
  977         } else {                                                        \
  978                 CSR_WRITE_4(x, TI_MB_STDRXPROD_IDX, y);                 \
  979         }
  980 
  981 
  982 /*
  983  * Tigon event structure.
  984  */
  985 struct ti_event_desc {
  986 #if BYTE_ORDER == BIG_ENDIAN
  987         u_int32_t               ti_event:8;
  988         u_int32_t               ti_code:12;
  989         u_int32_t               ti_idx:12;
  990 #else
  991         u_int32_t               ti_idx:12;
  992         u_int32_t               ti_code:12;
  993         u_int32_t               ti_event:8;
  994 #endif
  995         u_int32_t               ti_rsvd;
  996 };
  997 
  998 /*
  999  * Tigon events.
 1000  */
 1001 #define TI_EV_FIRMWARE_UP               0x01
 1002 #define TI_EV_STATS_UPDATED             0x04
 1003 
 1004 #define TI_EV_LINKSTAT_CHANGED          0x06
 1005 #define TI_EV_CODE_GIG_LINK_UP          0x01
 1006 #define TI_EV_CODE_LINK_DOWN            0x02
 1007 #define TI_EV_CODE_LINK_UP              0x03
 1008 
 1009 #define TI_EV_ERROR                     0x07
 1010 #define TI_EV_CODE_ERR_INVAL_CMD        0x01
 1011 #define TI_EV_CODE_ERR_UNIMP_CMD        0x02
 1012 #define TI_EV_CODE_ERR_BADCFG           0x03
 1013 
 1014 #define TI_EV_MCAST_UPDATED             0x08
 1015 #define TI_EV_CODE_MCAST_ADD            0x01
 1016 #define TI_EV_CODE_MCAST_DEL            0x02
 1017 
 1018 #define TI_EV_RESET_JUMBO_RING          0x09
 1019 /*
 1020  * Register access macros. The Tigon always uses memory mapped register
 1021  * accesses and all registers must be accessed with 32 bit operations.
 1022  */
 1023 
 1024 #define CSR_WRITE_4(sc, reg, val)       \
 1025         bus_space_write_4(sc->ti_btag, sc->ti_bhandle, reg, val)
 1026 
 1027 #define CSR_READ_4(sc, reg)             \
 1028         bus_space_read_4(sc->ti_btag, sc->ti_bhandle, reg)
 1029 
 1030 #define TI_SETBIT(sc, reg, x)   \
 1031         CSR_WRITE_4(sc, reg, (CSR_READ_4(sc, reg) | x))
 1032 #define TI_CLRBIT(sc, reg, x)   \
 1033         CSR_WRITE_4(sc, reg, (CSR_READ_4(sc, reg) & ~x))
 1034 
 1035 /*
 1036  * Memory management stuff. Note: the SSLOTS, MSLOTS and JSLOTS
 1037  * values are tuneable. They control the actual amount of buffers
 1038  * allocated for the standard, mini and jumbo receive rings.
 1039  */
 1040 
 1041 #define TI_SSLOTS       256
 1042 #define TI_MSLOTS       256
 1043 #define TI_JSLOTS       384
 1044 
 1045 #define TI_JRAWLEN (TI_JUMBO_FRAMELEN + ETHER_ALIGN + sizeof(u_int64_t))
 1046 #define TI_JLEN (TI_JRAWLEN + (sizeof(u_int64_t) - \
 1047         (TI_JRAWLEN % sizeof(u_int64_t))))
 1048 #define TI_JPAGESZ PAGE_SIZE
 1049 #define TI_RESID (TI_JPAGESZ - (TI_JLEN * TI_JSLOTS) % TI_JPAGESZ)
 1050 #define TI_JMEM ((TI_JLEN * TI_JSLOTS) + TI_RESID)
 1051 
 1052 struct ti_jslot {
 1053         caddr_t                 ti_buf;
 1054         int                     ti_inuse;
 1055 };
 1056 
 1057 /*
 1058  * Ring structures. Most of these reside in host memory and we tell
 1059  * the NIC where they are via the ring control blocks. The exceptions
 1060  * are the tx and command rings, which live in NIC memory and which
 1061  * we access via the shared memory window.
 1062  */
 1063 struct ti_ring_data {
 1064         struct ti_rx_desc       ti_rx_std_ring[TI_STD_RX_RING_CNT];
 1065         struct ti_rx_desc       ti_rx_jumbo_ring[TI_JUMBO_RX_RING_CNT];
 1066         struct ti_rx_desc       ti_rx_mini_ring[TI_MINI_RX_RING_CNT];
 1067         struct ti_rx_desc       ti_rx_return_ring[TI_RETURN_RING_CNT];
 1068         struct ti_event_desc    ti_event_ring[TI_EVENT_RING_CNT];
 1069         struct ti_tx_desc       ti_tx_ring[TI_TX_RING_CNT];
 1070         /*
 1071          * Make sure producer structures are aligned on 32-byte cache
 1072          * line boundaries.
 1073          */
 1074         struct ti_producer      ti_ev_prodidx_r;
 1075         u_int32_t               ti_pad0[6];
 1076         struct ti_producer      ti_return_prodidx_r;
 1077         u_int32_t               ti_pad1[6];
 1078         struct ti_producer      ti_tx_considx_r;
 1079         u_int32_t               ti_pad2[6];
 1080         struct ti_tx_desc       *ti_tx_ring_nic;/* pointer to shared mem */
 1081         struct ti_cmd_desc      *ti_cmd_ring;   /* pointer to shared mem */
 1082         struct ti_gib           ti_info;
 1083 };
 1084 
 1085 /*
 1086  * Mbuf pointers. We need these to keep track of the virtual addresses
 1087  * of our mbuf chains since we can only convert from physical to virtual,
 1088  * not the other way around.
 1089  */
 1090 struct ti_chain_data {
 1091         struct mbuf             *ti_tx_chain[TI_TX_RING_CNT];
 1092         struct mbuf             *ti_rx_std_chain[TI_STD_RX_RING_CNT];
 1093         struct mbuf             *ti_rx_jumbo_chain[TI_JUMBO_RX_RING_CNT];
 1094         struct mbuf             *ti_rx_mini_chain[TI_MINI_RX_RING_CNT];
 1095         /* Stick the jumbo mem management stuff here too. */
 1096         struct ti_jslot         ti_jslots[TI_JSLOTS];
 1097         void                    *ti_jumbo_buf;
 1098 };
 1099 
 1100 struct ti_type {
 1101         u_int16_t               ti_vid;
 1102         u_int16_t               ti_did;
 1103         char                    *ti_name;
 1104 };
 1105 
 1106 #define TI_HWREV_TIGON          0x01
 1107 #define TI_HWREV_TIGON_II       0x02
 1108 #define TI_TIMEOUT              1000
 1109 #define TI_TXCONS_UNSET         0xFFFF  /* impossible value */
 1110 
 1111 struct ti_mc_entry {
 1112         struct ether_addr               mc_addr;
 1113         SLIST_ENTRY(ti_mc_entry)        mc_entries;
 1114 };
 1115 
 1116 struct ti_jpool_entry {
 1117         int                             slot;
 1118         SLIST_ENTRY(ti_jpool_entry)     jpool_entries;
 1119 };
 1120 
 1121 struct ti_softc {
 1122         struct arpcom           arpcom;         /* interface info */
 1123         bus_space_handle_t      ti_bhandle;
 1124         vm_offset_t             ti_vhandle;
 1125         bus_space_tag_t         ti_btag;
 1126         void                    *ti_intrhand;
 1127         struct resource         *ti_irq;
 1128         struct resource         *ti_res;
 1129         struct ifmedia          ifmedia;        /* media info */
 1130         u_int8_t                ti_unit;        /* interface number */
 1131         u_int8_t                ti_hwrev;       /* Tigon rev (1 or 2) */
 1132         u_int8_t                ti_copper;      /* 1000baseTX card */
 1133         u_int8_t                ti_linkstat;    /* Link state */
 1134         struct ti_ring_data     *ti_rdata;      /* rings */
 1135         struct ti_chain_data    ti_cdata;       /* mbufs */
 1136 #define ti_ev_prodidx           ti_rdata->ti_ev_prodidx_r
 1137 #define ti_return_prodidx       ti_rdata->ti_return_prodidx_r
 1138 #define ti_tx_considx           ti_rdata->ti_tx_considx_r
 1139         u_int16_t               ti_tx_saved_considx;
 1140         u_int16_t               ti_rx_saved_considx;
 1141         u_int16_t               ti_ev_saved_considx;
 1142         u_int16_t               ti_cmd_saved_prodidx;
 1143         u_int16_t               ti_std;         /* current std ring head */
 1144         u_int16_t               ti_mini;        /* current mini ring head */
 1145         u_int16_t               ti_jumbo;       /* current jumo ring head */
 1146         SLIST_HEAD(__ti_mchead, ti_mc_entry)    ti_mc_listhead;
 1147         SLIST_HEAD(__ti_jfreehead, ti_jpool_entry)      ti_jfree_listhead;
 1148         SLIST_HEAD(__ti_jinusehead, ti_jpool_entry)     ti_jinuse_listhead;
 1149         u_int32_t               ti_stat_ticks;
 1150         u_int32_t               ti_rx_coal_ticks;
 1151         u_int32_t               ti_tx_coal_ticks;
 1152         u_int32_t               ti_rx_max_coal_bds;
 1153         u_int32_t               ti_tx_max_coal_bds;
 1154         u_int32_t               ti_tx_buf_ratio;
 1155         int                     ti_if_flags;
 1156         int                     ti_txcnt;
 1157 };
 1158 
 1159 /*
 1160  * Microchip Technology 24Cxx EEPROM control bytes
 1161  */
 1162 #define EEPROM_CTL_READ                 0xA1    /* 0101 0001 */
 1163 #define EEPROM_CTL_WRITE                0xA0    /* 0101 0000 */
 1164 
 1165 /*
 1166  * Note that EEPROM_START leaves transmission enabled.
 1167  */
 1168 #define EEPROM_START                                                    \
 1169         TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); /* Pull clock pin high */\
 1170         TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); /* Set DATA bit to 1 */       \
 1171         TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* Enable xmit to write bit */\
 1172         TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); /* Pull DATA bit to 0 again */\
 1173         TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); /* Pull clock low again */
 1174 
 1175 /*
 1176  * EEPROM_STOP ends access to the EEPROM and clears the ETXEN bit so
 1177  * that no further data can be written to the EEPROM I/O pin.
 1178  */
 1179 #define EEPROM_STOP                                                     \
 1180         TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* Disable xmit */    \
 1181         TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); /* Pull DATA to 0 */  \
 1182         TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); /* Pull clock high */  \
 1183         TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* Enable xmit */     \
 1184         TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); /* Toggle DATA to 1 */        \
 1185         TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* Disable xmit. */   \
 1186         TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); /* Pull clock low again */
 1187 
 1188 
 1189 #ifdef __alpha__
 1190 #undef vtophys
 1191 #define vtophys(va)             alpha_XXX_dmamap((vm_offset_t)va)
 1192 #endif

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