drivers/net/tokenring/tms380tr.h

   1 /*
   2  * tms380tr.h: TI TMS380 Token Ring driver for Linux
   3  *
   4  * Authors:
   5  * - Christoph Goos <cgoos@syskonnect.de>
   6  * - Adam Fritzler
   7  */
   8
   9 #ifndef __LINUX_TMS380TR_H
  10 #define __LINUX_TMS380TR_H
  11
  12 #ifdef __KERNEL__
  13
  14 #include <linux/interrupt.h>
  15
  16 /* module prototypes */
  17 extern const struct net_device_ops tms380tr_netdev_ops;
  18 int tms380tr_open(struct net_device *dev);
  19 int tms380tr_close(struct net_device *dev);
  20 irqreturn_t tms380tr_interrupt(int irq, void *dev_id);
  21 int tmsdev_init(struct net_device *dev, struct device *pdev);
  22 void tmsdev_term(struct net_device *dev);
  23 void tms380tr_wait(unsigned long time);
  24
  25 #define TMS380TR_MAX_ADAPTERS 7
  26
  27 #define SEND_TIMEOUT 10*HZ
  28
  29 #define TR_RCF_LONGEST_FRAME_MASK 0x0070
  30 #define TR_RCF_FRAME4K 0x0030
  31
  32 /*------------------------------------------------------------------*/
  33 /*  Bit order for adapter communication with DMA                    */
  34 /*  --------------------------------------------------------------  */
  35 /*  Bit  8 | 9| 10| 11|| 12| 13| 14| 15|| 0| 1| 2| 3|| 4| 5| 6| 7|  */
  36 /*  --------------------------------------------------------------  */
  37 /*  The bytes in a word must be byte swapped. Also, if a double     */
  38 /*  word is used for storage, then the words, as well as the bytes, */
  39 /*  must be swapped.                                                */
  40 /*  Bit order for adapter communication with DIO                    */
  41 /*  --------------------------------------------------------------  */
  42 /*  Bit  0 | 1| 2| 3|| 4| 5| 6| 7|| 8| 9| 10| 11|| 12| 13| 14| 15|  */
  43 /*  --------------------------------------------------------------  */
  44 /*------------------------------------------------------------------*/
  45
  46 /* Swap words of a long.                        */
  47 #define SWAPW(x) (((x) << 16) | ((x) >> 16))
  48
  49 /* Get the low byte of a word.                      */
  50 #define LOBYTE(w)       ((unsigned char)(w))
  51
  52 /* Get the high byte of a word.                     */
  53 #define HIBYTE(w)       ((unsigned char)((unsigned short)(w) >> 8))
  54
  55 /* Get the low word of a long.                      */
  56 #define LOWORD(l)       ((unsigned short)(l))
  57
  58 /* Get the high word of a long.                     */
  59 #define HIWORD(l)       ((unsigned short)((unsigned long)(l) >> 16))
  60
  61
  62
  63 /* Token ring adapter I/O addresses for normal mode. */
  64
  65 /*
  66  * The SIF registers.  Common to all adapters.
  67  */
  68 /* Basic SIF (SRSX = 0) */
  69 #define SIFDAT                  0x00    /* SIF/DMA data. */
  70 #define SIFINC                  0x02    /* IO Word data with auto increment. */
  71 #define SIFINH                  0x03    /* IO Byte data with auto increment. */
  72 #define SIFADR                  0x04    /* SIF/DMA Address. */
  73 #define SIFCMD                  0x06    /* SIF Command. */
  74 #define SIFSTS                  0x06    /* SIF Status. */
  75
  76 /* "Extended" SIF (SRSX = 1) */
  77 #define SIFACL                  0x08    /* SIF Adapter Control Register. */
  78 #define SIFADD                  0x0a    /* SIF/DMA Address. -- 0x0a */
  79 #define SIFADX                  0x0c     /* 0x0c */
  80 #define DMALEN                  0x0e    /* SIF DMA length. -- 0x0e */
  81
  82 /*
  83  * POS Registers.  Only for ISA Adapters.
  84  */
  85 #define POSREG                  0x10    /* Adapter Program Option Select (POS)
  86                                          * Register: base IO address + 16 byte.
  87                                          */
  88 #define POSREG_2                24L     /* only for TR4/16+ adapter
  89                                          * base IO address + 24 byte. -- 0x18
  90                                          */
  91
  92 /* SIFCMD command codes (high-low) */
  93 #define CMD_INTERRUPT_ADAPTER   0x8000  /* Cause internal adapter interrupt */
  94 #define CMD_ADAPTER_RESET       0x4000  /* Hardware reset of adapter */
  95 #define CMD_SSB_CLEAR           0x2000  /* Acknowledge to adapter to
  96                                          * system interrupts.
  97                                          */
  98 #define CMD_EXECUTE             0x1000  /* Execute SCB command */
  99 #define CMD_SCB_REQUEST         0x0800  /* Request adapter to interrupt
 100                                          * system when SCB is available for
 101                                          * another command.
 102                                          */
 103 #define CMD_RX_CONTINUE         0x0400  /* Continue receive after odd pointer
 104                                          * stop. (odd pointer receive method)
 105                                          */
 106 #define CMD_RX_VALID            0x0200  /* Now actual RPL is valid. */
 107 #define CMD_TX_VALID            0x0100  /* Now actual TPL is valid. (valid
 108                                          * bit receive/transmit method)
 109                                          */
 110 #define CMD_SYSTEM_IRQ          0x0080  /* Adapter-to-attached-system
 111                                          * interrupt is reset.
 112                                          */
 113 #define CMD_CLEAR_SYSTEM_IRQ    0x0080  /* Clear SYSTEM_INTERRUPT bit.
 114                                          * (write: 1=ignore, 0=reset)
 115                                          */
 116 #define EXEC_SOFT_RESET         0xFF00  /* adapter soft reset. (restart
 117                                          * adapter after hardware reset)
 118                                          */
 119
 120
 121 /* ACL commands (high-low) */
 122 #define ACL_SWHLDA              0x0800  /* Software hold acknowledge. */
 123 #define ACL_SWDDIR              0x0400  /* Data transfer direction. */
 124 #define ACL_SWHRQ               0x0200  /* Pseudo DMA operation. */
 125 #define ACL_PSDMAEN             0x0100  /* Enable pseudo system DMA. */
 126 #define ACL_ARESET              0x0080  /* Adapter hardware reset command.
 127                                          * (held in reset condition as
 128                                          * long as bit is set)
 129                                          */
 130 #define ACL_CPHALT              0x0040  /* Communication processor halt.
 131                                          * (can only be set while ACL_ARESET
 132                                          * bit is set; prevents adapter
 133                                          * processor from executing code while
 134                                          * downloading firmware)
 135                                          */
 136 #define ACL_BOOT                0x0020
 137 #define ACL_SINTEN              0x0008  /* System interrupt enable/disable
 138                                          * (1/0): can be written if ACL_ARESET
 139                                          * is zero.
 140                                          */
 141 #define ACL_PEN                 0x0004
 142
 143 #define ACL_NSELOUT0            0x0002
 144 #define ACL_NSELOUT1            0x0001  /* NSELOUTx have a card-specific
 145                                          * meaning for setting ring speed.
 146                                          */
 147
 148 #define PS_DMA_MASK             (ACL_SWHRQ | ACL_PSDMAEN)
 149
 150
 151 /* SIFSTS register return codes (high-low) */
 152 #define STS_SYSTEM_IRQ          0x0080  /* Adapter-to-attached-system
 153                                          * interrupt is valid.
 154                                          */
 155 #define STS_INITIALIZE          0x0040  /* INITIALIZE status. (ready to
 156                                          * initialize)
 157                                          */
 158 #define STS_TEST                0x0020  /* TEST status. (BUD not completed) */
 159 #define STS_ERROR               0x0010  /* ERROR status. (unrecoverable
 160                                          * HW error occurred)
 161                                          */
 162 #define STS_MASK                0x00F0  /* Mask interesting status bits. */
 163 #define STS_ERROR_MASK          0x000F  /* Get Error Code by masking the
 164                                          * interrupt code bits.
 165                                          */
 166 #define ADAPTER_INT_PTRS        0x0A00  /* Address offset of adapter internal
 167                                          * pointers 01:0a00 (high-low) have to
 168                                          * be read after init and before open.
 169                                          */
 170
 171
 172 /* Interrupt Codes (only MAC IRQs) */
 173 #define STS_IRQ_ADAPTER_CHECK   0x0000  /* unrecoverable hardware or
 174                                          * software error.
 175                                          */
 176 #define STS_IRQ_RING_STATUS     0x0004  /* SSB is updated with ring status. */
 177 #define STS_IRQ_LLC_STATUS      0x0005  /* Not used in MAC-only microcode */
 178 #define STS_IRQ_SCB_CLEAR       0x0006  /* SCB clear, following an
 179                                          * SCB_REQUEST IRQ.
 180                                          */
 181 #define STS_IRQ_TIMER           0x0007  /* Not normally used in MAC ucode */
 182 #define STS_IRQ_COMMAND_STATUS  0x0008  /* SSB is updated with command
 183                                          * status.
 184                                          */
 185 #define STS_IRQ_RECEIVE_STATUS  0x000A  /* SSB is updated with receive
 186                                          * status.
 187                                          */
 188 #define STS_IRQ_TRANSMIT_STATUS 0x000C  /* SSB is updated with transmit
 189                                          * status
 190                                          */
 191 #define STS_IRQ_RECEIVE_PENDING 0x000E  /* Not used in MAC-only microcode */
 192 #define STS_IRQ_MASK            0x000F  /* = STS_ERROR_MASK. */
 193
 194
 195 /* TRANSMIT_STATUS completion code: (SSB.Parm[0]) */
 196 #define COMMAND_COMPLETE        0x0080  /* TRANSMIT command completed
 197                                          * (avoid this!) issue another transmit
 198                                          * to send additional frames.
 199                                          */
 200 #define FRAME_COMPLETE          0x0040  /* Frame has been transmitted;
 201                                          * INTERRUPT_FRAME bit was set in the
 202                                          * CSTAT request; indication of possibly
 203                                          * more than one frame transmissions!
 204                                          * SSB.Parm[0-1]: 32 bit pointer to
 205                                          * TPL of last frame.
 206                                          */
 207 #define LIST_ERROR              0x0020  /* Error in one of the TPLs that
 208                                          * compose the frame; TRANSMIT
 209                                          * terminated; Parm[1-2]: 32bit pointer
 210                                          * to TPL which starts the error
 211                                          * frame; error details in bits 8-13.
 212                                          * (14?)
 213                                          */
 214 #define FRAME_SIZE_ERROR        0x8000  /* FRAME_SIZE does not equal the sum of
 215                                          * the valid DATA_COUNT fields;
 216                                          * FRAME_SIZE less than header plus
 217                                          * information field. (15 bytes +
 218                                          * routing field) Or if FRAME_SIZE
 219                                          * was specified as zero in one list.
 220                                          */
 221 #define TX_THRESHOLD            0x4000  /* FRAME_SIZE greater than (BUFFER_SIZE
 222                                          * - 9) * TX_BUF_MAX.
 223                                          */
 224 #define ODD_ADDRESS             0x2000  /* Odd forward pointer value is
 225                                          * read on a list without END_FRAME
 226                                          * indication.
 227                                          */
 228 #define FRAME_ERROR             0x1000  /* START_FRAME bit (not) anticipated,
 229                                          * but (not) set.
 230                                          */
 231 #define ACCESS_PRIORITY_ERROR   0x0800  /* Access priority requested has not
 232                                          * been allowed.
 233                                          */
 234 #define UNENABLED_MAC_FRAME     0x0400  /* MAC frame has source class of zero
 235                                          * or MAC frame PCF ATTN field is
 236                                          * greater than one.
 237                                          */
 238 #define ILLEGAL_FRAME_FORMAT    0x0200  /* Bit 0 or FC field was set to one. */
 239
 240
 241 /*
 242  * Since we need to support some functions even if the adapter is in a
 243  * CLOSED state, we have a (pseudo-) command queue which holds commands
 244  * that are outstandig to be executed.
 245  *
 246  * Each time a command completes, an interrupt occurs and the next
 247  * command is executed. The command queue is actually a simple word with
 248  * a bit for each outstandig command. Therefore the commands will not be
 249  * executed in the order they have been queued.
 250  *
 251  * The following defines the command code bits and the command queue:
 252  */
 253 #define OC_OPEN                 0x0001  /* OPEN command */
 254 #define OC_TRANSMIT             0x0002  /* TRANSMIT command */
 255 #define OC_TRANSMIT_HALT        0x0004  /* TRANSMIT_HALT command */
 256 #define OC_RECEIVE              0x0008  /* RECEIVE command */
 257 #define OC_CLOSE                0x0010  /* CLOSE command */
 258 #define OC_SET_GROUP_ADDR       0x0020  /* SET_GROUP_ADDR command */
 259 #define OC_SET_FUNCT_ADDR       0x0040  /* SET_FUNCT_ADDR command */
 260 #define OC_READ_ERROR_LOG       0x0080  /* READ_ERROR_LOG command */
 261 #define OC_READ_ADAPTER         0x0100  /* READ_ADAPTER command */
 262 #define OC_MODIFY_OPEN_PARMS    0x0400  /* MODIFY_OPEN_PARMS command */
 263 #define OC_RESTORE_OPEN_PARMS   0x0800  /* RESTORE_OPEN_PARMS command */
 264 #define OC_SET_FIRST_16_GROUP   0x1000  /* SET_FIRST_16_GROUP command */
 265 #define OC_SET_BRIDGE_PARMS     0x2000  /* SET_BRIDGE_PARMS command */
 266 #define OC_CONFIG_BRIDGE_PARMS  0x4000  /* CONFIG_BRIDGE_PARMS command */
 267
 268 #define OPEN                    0x0300  /* C: open command. S: completion. */
 269 #define TRANSMIT                0x0400  /* C: transmit command. S: completion
 270                                          * status. (reject: COMMAND_REJECT if
 271                                          * adapter not opened, TRANSMIT already
 272                                          * issued or address passed in the SCB
 273                                          * not word aligned)
 274                                          */
 275 #define TRANSMIT_HALT           0x0500  /* C: interrupt TX TPL chain; if no
 276                                          * TRANSMIT command issued, the command
 277                                          * is ignored (completion with TRANSMIT
 278                                          * status (0x0400)!)
 279                                          */
 280 #define RECEIVE                 0x0600  /* C: receive command. S: completion
 281                                          * status. (reject: COMMAND_REJECT if
 282                                          * adapter not opened, RECEIVE already
 283                                          * issued or address passed in the SCB
 284                                          * not word aligned)
 285                                          */
 286 #define CLOSE                   0x0700  /* C: close adapter. S: completion.
 287                                          * (COMMAND_REJECT if adapter not open)
 288                                          */
 289 #define SET_GROUP_ADDR          0x0800  /* C: alter adapter group address after
 290                                          * OPEN. S: completion. (COMMAND_REJECT
 291                                          * if adapter not open)
 292                                          */
 293 #define SET_FUNCT_ADDR          0x0900  /* C: alter adapter functional address
 294                                          * after OPEN. S: completion.
 295                                          * (COMMAND_REJECT if adapter not open)
 296                                          */
 297 #define READ_ERROR_LOG          0x0A00  /* C: read adapter error counters.
 298                                          * S: completion. (command ignored
 299                                          * if adapter not open!)
 300                                          */
 301 #define READ_ADAPTER            0x0B00  /* C: read data from adapter memory.
 302                                          * (important: after init and before
 303                                          * open!) S: completion. (ADAPTER_CHECK
 304                                          * interrupt if undefined storage area
 305                                          * read)
 306                                          */
 307 #define MODIFY_OPEN_PARMS       0x0D00  /* C: modify some adapter operational
 308                                          * parameters. (bit correspondend to
 309                                          * WRAP_INTERFACE is ignored)
 310                                          * S: completion. (reject:
 311                                          * COMMAND_REJECT)
 312                                          */
 313 #define RESTORE_OPEN_PARMS      0x0E00  /* C: modify some adapter operational
 314                                          * parameters. (bit correspondend
 315                                          * to WRAP_INTERFACE is ignored)
 316                                          * S: completion. (reject:
 317                                          * COMMAND_REJECT)
 318                                          */
 319 #define SET_FIRST_16_GROUP      0x0F00  /* C: alter the first two bytes in
 320                                          * adapter group address.
 321                                          * S: completion. (reject:
 322                                          * COMMAND_REJECT)
 323                                          */
 324 #define SET_BRIDGE_PARMS        0x1000  /* C: values and conditions for the
 325                                          * adapter hardware to use when frames
 326                                          * are copied for forwarding.
 327                                          * S: completion. (reject:
 328                                          * COMMAND_REJECT)
 329                                          */
 330 #define CONFIG_BRIDGE_PARMS     0x1100  /* C: ..
 331                                          * S: completion. (reject:
 332                                          * COMMAND_REJECT)
 333                                          */
 334
 335 #define SPEED_4                 4
 336 #define SPEED_16                16      /* Default transmission speed  */
 337
 338
 339 /* Initialization Parameter Block (IPB); word alignment necessary! */
 340 #define BURST_SIZE      0x0018  /* Default burst size */
 341 #define BURST_MODE      0x9F00  /* Burst mode enable */
 342 #define DMA_RETRIES     0x0505  /* Magic DMA retry number... */
 343
 344 #define CYCLE_TIME      3       /* Default AT-bus cycle time: 500 ns
 345                                  * (later adapter version: fix  cycle time!)
 346                                  */
 347 #define LINE_SPEED_BIT  0x80
 348
 349 /* Macro definition for the wait function. */
 350 #define ONE_SECOND_TICKS        1000000
 351 #define HALF_SECOND             (ONE_SECOND_TICKS / 2)
 352 #define ONE_SECOND              (ONE_SECOND_TICKS)
 353 #define TWO_SECONDS             (ONE_SECOND_TICKS * 2)
 354 #define THREE_SECONDS           (ONE_SECOND_TICKS * 3)
 355 #define FOUR_SECONDS            (ONE_SECOND_TICKS * 4)
 356 #define FIVE_SECONDS            (ONE_SECOND_TICKS * 5)
 357
 358 #define BUFFER_SIZE             2048    /* Buffers on Adapter */
 359
 360 #pragma pack(1)
 361 typedef struct {
 362         unsigned short Init_Options;    /* Initialize with burst mode;
 363                                          * LLC disabled. (MAC only)
 364                                          */
 365
 366         /* Interrupt vectors the adapter places on attached system bus. */
 367         u_int8_t  CMD_Status_IV;    /* Interrupt vector: command status. */
 368         u_int8_t  TX_IV;            /* Interrupt vector: transmit. */
 369         u_int8_t  RX_IV;            /* Interrupt vector: receive. */
 370         u_int8_t  Ring_Status_IV;   /* Interrupt vector: ring status. */
 371         u_int8_t  SCB_Clear_IV;     /* Interrupt vector: SCB clear. */
 372         u_int8_t  Adapter_CHK_IV;   /* Interrupt vector: adapter check. */
 373
 374         u_int16_t RX_Burst_Size;    /* Max. number of transfer cycles. */
 375         u_int16_t TX_Burst_Size;    /* During DMA burst; even value! */
 376         u_int16_t DMA_Abort_Thrhld; /* Number of DMA retries. */
 377
 378         u_int32_t SCB_Addr;   /* SCB address: even, word aligned, high-low */
 379         u_int32_t SSB_Addr;   /* SSB address: even, word aligned, high-low */
 380 } IPB, *IPB_Ptr;
 381 #pragma pack()
 382
 383 /*
 384  * OPEN Command Parameter List (OCPL) (can be reused, if the adapter has to
 385  * be reopened)
 386  */
 387 #define BUFFER_SIZE     2048            /* Buffers on Adapter. */
 388 #define TPL_SIZE        8+6*TX_FRAG_NUM /* Depending on fragments per TPL. */
 389 #define RPL_SIZE        14              /* (with TI firmware v2.26 handling
 390                                          * up to nine fragments possible)
 391                                          */
 392 #define TX_BUF_MIN      20              /* ??? (Stephan: calculation with */
 393 #define TX_BUF_MAX      40              /* BUFFER_SIZE and MAX_FRAME_SIZE) ???
 394                                          */
 395 #define DISABLE_EARLY_TOKEN_RELEASE     0x1000
 396
 397 /* OPEN Options (high-low) */
 398 #define WRAP_INTERFACE          0x0080  /* Inserting omitted for test
 399                                          * purposes; transmit data appears
 400                                          * as receive data. (useful for
 401                                          * testing; change: CLOSE necessary)
 402                                          */
 403 #define DISABLE_HARD_ERROR      0x0040  /* On HARD_ERROR & TRANSMIT_BEACON
 404                                          * no RING.STATUS interrupt.
 405                                          */
 406 #define DISABLE_SOFT_ERROR      0x0020  /* On SOFT_ERROR, no RING.STATUS
 407                                          * interrupt.
 408                                          */
 409 #define PASS_ADAPTER_MAC_FRAMES 0x0010  /* Passing unsupported MAC frames
 410                                          * to system.
 411                                          */
 412 #define PASS_ATTENTION_FRAMES   0x0008  /* All changed attention MAC frames are
 413                                          * passed to the system.
 414                                          */
 415 #define PAD_ROUTING_FIELD       0x0004  /* Routing field is padded to 18
 416                                          * bytes.
 417                                          */
 418 #define FRAME_HOLD              0x0002  /*Adapter waits for entire frame before
 419                                          * initiating DMA transfer; otherwise:
 420                                          * DMA transfer initiation if internal
 421                                          * buffer filled.
 422                                          */
 423 #define CONTENDER               0x0001  /* Adapter participates in the monitor
 424                                          * contention process.
 425                                          */
 426 #define PASS_BEACON_MAC_FRAMES  0x8000  /* Adapter passes beacon MAC frames
 427                                          * to the system.
 428                                          */
 429 #define EARLY_TOKEN_RELEASE     0x1000  /* Only valid in 16 Mbps operation;
 430                                          * 0 = ETR. (no effect in 4 Mbps
 431                                          * operation)
 432                                          */
 433 #define COPY_ALL_MAC_FRAMES     0x0400  /* All MAC frames are copied to
 434                                          * the system. (after OPEN: duplicate
 435                                          * address test (DAT) MAC frame is
 436                                          * first received frame copied to the
 437                                          * system)
 438                                          */
 439 #define COPY_ALL_NON_MAC_FRAMES 0x0200  /* All non MAC frames are copied to
 440                                          * the system.
 441                                          */
 442 #define PASS_FIRST_BUF_ONLY     0x0100  /* Passes only first internal buffer
 443                                          * of each received frame; FrameSize
 444                                          * of RPLs must contain internal
 445                                          * BUFFER_SIZE bits for promiscuous mode.
 446                                          */
 447 #define ENABLE_FULL_DUPLEX_SELECTION    0x2000
 448                                         /* Enable the use of full-duplex
 449                                          * settings with bits in byte 22 in
 450                                          * ocpl. (new feature in firmware
 451                                          * version 3.09)
 452                                          */
 453
 454 /* Full-duplex settings */
 455 #define OPEN_FULL_DUPLEX_OFF    0x0000
 456 #define OPEN_FULL_DUPLEX_ON     0x00c0
 457 #define OPEN_FULL_DUPLEX_AUTO   0x0080
 458
 459 #define PROD_ID_SIZE    18      /* Length of product ID. */
 460
 461 #define TX_FRAG_NUM     3        /* Number of fragments used in one TPL. */
 462 #define TX_MORE_FRAGMENTS 0x8000 /* Bit set in DataCount to indicate more
 463                                   * fragments following.
 464                                   */
 465
 466 /* XXX is there some better way to do this? */
 467 #define ISA_MAX_ADDRESS         0x00ffffff
 468 #define PCI_MAX_ADDRESS         0xffffffff
 469
 470 #pragma pack(1)
 471 typedef struct {
 472         u_int16_t OPENOptions;
 473         u_int8_t  NodeAddr[6];  /* Adapter node address; use ROM
 474                                  * address
 475                                  */
 476         u_int32_t GroupAddr;    /* Multicast: high order
 477                                  * bytes = 0xC000
 478                                  */
 479         u_int32_t FunctAddr;    /* High order bytes = 0xC000 */
 480         __be16 RxListSize;      /* RPL size: 0 (=26), 14, 20 or
 481                                  * 26 bytes read by the adapter.
 482                                  * (Depending on the number of
 483                                  * fragments/list)
 484                                  */
 485         __be16 TxListSize;      /* TPL size */
 486         __be16 BufSize;         /* Is automatically rounded up to the
 487                                  * nearest nK boundary.
 488                                  */
 489         u_int16_t FullDuplex;
 490         u_int16_t Reserved;
 491         u_int8_t  TXBufMin;     /* Number of adapter buffers reserved
 492                                  * for transmission a minimum of 2
 493                                  * buffers must be allocated.
 494                                  */
 495         u_int8_t  TXBufMax;     /* Maximum number of adapter buffers
 496                                  * for transmit; a minimum of 2 buffers
 497                                  * must be available for receive.
 498                                  * Default: 6
 499                                  */
 500         u_int16_t ProdIDAddr[2];/* Pointer to product ID. */
 501 } OPB, *OPB_Ptr;
 502 #pragma pack()
 503
 504 /*
 505  * SCB: adapter commands enabled by the host system started by writing
 506  * CMD_INTERRUPT_ADAPTER | CMD_EXECUTE (|SCB_REQUEST) to the SIFCMD IO
 507  * register. (special case: | CMD_SYSTEM_IRQ for initialization)
 508  */
 509 #pragma pack(1)
 510 typedef struct {
 511         u_int16_t CMD;          /* Command code */
 512         u_int16_t Parm[2];      /* Pointer to Command Parameter Block */
 513 } SCB;  /* System Command Block (32 bit physical address; big endian)*/
 514 #pragma pack()
 515
 516 /*
 517  * SSB: adapter command return status can be evaluated after COMMAND_STATUS
 518  * adapter to system interrupt after reading SSB, the availability of the SSB
 519  * has to be told the adapter by writing CMD_INTERRUPT_ADAPTER | CMD_SSB_CLEAR
 520  * in the SIFCMD IO register.
 521  */
 522 #pragma pack(1)
 523 typedef struct {
 524         u_int16_t STS;          /* Status code */
 525         u_int16_t Parm[3];      /* Parameter or pointer to Status Parameter
 526                                  * Block.
 527                                  */
 528 } SSB;  /* System Status Block (big endian - physical address)  */
 529 #pragma pack()
 530
 531 typedef struct {
 532         unsigned short BurnedInAddrPtr; /* Pointer to adapter burned in
 533                                          * address. (BIA)
 534                                          */
 535         unsigned short SoftwareLevelPtr;/* Pointer to software level data. */
 536         unsigned short AdapterAddrPtr;  /* Pointer to adapter addresses. */
 537         unsigned short AdapterParmsPtr; /* Pointer to adapter parameters. */
 538         unsigned short MACBufferPtr;    /* Pointer to MAC buffer. (internal) */
 539         unsigned short LLCCountersPtr;  /* Pointer to LLC counters.  */
 540         unsigned short SpeedFlagPtr;    /* Pointer to data rate flag.
 541                                          * (4/16 Mbps)
 542                                          */
 543         unsigned short AdapterRAMPtr;   /* Pointer to adapter RAM found. (KB) */
 544 } INTPTRS;      /* Adapter internal pointers */
 545
 546 #pragma pack(1)
 547 typedef struct {
 548         u_int8_t  Line_Error;           /* Line error: code violation in
 549                                          * frame or in a token, or FCS error.
 550                                          */
 551         u_int8_t  Internal_Error;       /* IBM specific. (Reserved_1) */
 552         u_int8_t  Burst_Error;
 553         u_int8_t  ARI_FCI_Error;        /* ARI/FCI bit zero in AMP or
 554                                          * SMP MAC frame.
 555                                          */
 556         u_int8_t  AbortDelimeters;      /* IBM specific. (Reserved_2) */
 557         u_int8_t  Reserved_3;
 558         u_int8_t  Lost_Frame_Error;     /* Receive of end of transmitted
 559                                          * frame failed.
 560                                          */
 561         u_int8_t  Rx_Congest_Error;     /* Adapter in repeat mode has not
 562                                          * enough buffer space to copy incoming
 563                                          * frame.
 564                                          */
 565         u_int8_t  Frame_Copied_Error;   /* ARI bit not zero in frame
 566                                          * addressed to adapter.
 567                                          */
 568         u_int8_t  Frequency_Error;      /* IBM specific. (Reserved_4) */
 569         u_int8_t  Token_Error;          /* (active only in monitor station) */
 570         u_int8_t  Reserved_5;
 571         u_int8_t  DMA_Bus_Error;        /* DMA bus errors not exceeding the
 572                                          * abort thresholds.
 573                                          */
 574         u_int8_t  DMA_Parity_Error;     /* DMA parity errors not exceeding
 575                                          * the abort thresholds.
 576                                          */
 577 } ERRORTAB;     /* Adapter error counters */
 578 #pragma pack()
 579
 580
 581 /*--------------------- Send and Receive definitions -------------------*/
 582 #pragma pack(1)
 583 typedef struct {
 584         __be16 DataCount;       /* Value 0, even and odd values are
 585                                  * permitted; value is unaltered most
 586                                  * significant bit set: following
 587                                  * fragments last fragment: most
 588                                  * significant bit is not evaluated.
 589                                  * (???)
 590                                  */
 591         __be32 DataAddr;        /* Pointer to frame data fragment;
 592                                  * even or odd.
 593                                  */
 594 } Fragment;
 595 #pragma pack()
 596
 597 #define MAX_FRAG_NUMBERS    9   /* Maximal number of fragments possible to use
 598                                  * in one RPL/TPL. (depending on TI firmware
 599                                  * version)
 600                                  */
 601
 602 /*
 603  * AC (1), FC (1), Dst (6), Src (6), RIF (18), Data (4472) = 4504
 604  * The packet size can be one of the follows: 548, 1502, 2084, 4504, 8176,
 605  * 11439, 17832. Refer to TMS380 Second Generation Token Ring User's Guide
 606  * Page 2-27.
 607  */
 608 #define HEADER_SIZE             (1 + 1 + 6 + 6)
 609 #define SRC_SIZE                18
 610 #define MIN_DATA_SIZE           516
 611 #define DEFAULT_DATA_SIZE       4472
 612 #define MAX_DATA_SIZE           17800
 613
 614 #define DEFAULT_PACKET_SIZE (HEADER_SIZE + SRC_SIZE + DEFAULT_DATA_SIZE)
 615 #define MIN_PACKET_SIZE     (HEADER_SIZE + SRC_SIZE + MIN_DATA_SIZE)
 616 #define MAX_PACKET_SIZE     (HEADER_SIZE + SRC_SIZE + MAX_DATA_SIZE)
 617
 618 /*
 619  * Macros to deal with the frame status field.
 620  */
 621 #define AC_NOT_RECOGNIZED       0x00
 622 #define GROUP_BIT               0x80
 623 #define GET_TRANSMIT_STATUS_HIGH_BYTE(Ts) ((unsigned char)((Ts) >> 8))
 624 #define GET_FRAME_STATUS_HIGH_AC(Fs)      ((unsigned char)(((Fs) & 0xC0) >> 6))
 625 #define GET_FRAME_STATUS_LOW_AC(Fs)       ((unsigned char)(((Fs) & 0x0C) >> 2))
 626 #define DIRECTED_FRAME(Context)           (!((Context)->MData[2] & GROUP_BIT))
 627
 628
 629 /*--------------------- Send Functions ---------------------------------*/
 630 /* define TX_CSTAT _REQUEST (R) and _COMPLETE (C) values (high-low) */
 631
 632 #define TX_VALID                0x0080  /* R: set via TRANSMIT.VALID interrupt.
 633                                          * C: always reset to zero!
 634                                          */
 635 #define TX_FRAME_COMPLETE       0x0040  /* R: must be reset to zero.
 636                                          * C: set to one.
 637                                          */
 638 #define TX_START_FRAME          0x0020  /* R: start of a frame: 1
 639                                          * C: unchanged.
 640                                          */
 641 #define TX_END_FRAME            0x0010  /* R: end of a frame: 1
 642                                          * C: unchanged.
 643                                          */
 644 #define TX_FRAME_IRQ            0x0008  /* R: request interrupt generation
 645                                          * after transmission.
 646                                          * C: unchanged.
 647                                          */
 648 #define TX_ERROR                0x0004  /* R: reserved.
 649                                          * C: set to one if Error occurred.
 650                                          */
 651 #define TX_INTERFRAME_WAIT      0x0004
 652 #define TX_PASS_CRC             0x0002  /* R: set if CRC value is already
 653                                          * calculated. (valid only in
 654                                          * FRAME_START TPL)
 655                                          * C: unchanged.
 656                                          */
 657 #define TX_PASS_SRC_ADDR        0x0001  /* R: adapter uses explicit frame
 658                                          * source address and does not overwrite
 659                                          * with the adapter node address.
 660                                          * (valid only in FRAME_START TPL)
 661                                          *
 662                                          * C: unchanged.
 663                                          */
 664 #define TX_STRIP_FS             0xFF00  /* R: reserved.
 665                                          * C: if no Transmission Error,
 666                                          * field contains copy of FS byte after
 667                                          * stripping of frame.
 668                                          */
 669
 670 /*
 671  * Structure of Transmit Parameter Lists (TPLs) (only one frame every TPL,
 672  * but possibly multiple TPLs for one frame) the length of the TPLs has to be
 673  * initialized in the OPL. (OPEN parameter list)
 674  */
 675 #define TPL_NUM         3       /* Number of Transmit Parameter Lists.
 676                                  * !! MUST BE >= 3 !!
 677                                  */
 678
 679 #pragma pack(1)
 680 typedef struct s_TPL TPL;
 681
 682 struct s_TPL {  /* Transmit Parameter List (align on even word boundaries) */
 683         __be32 NextTPLAddr;             /* Pointer to next TPL in chain; if
 684                                          * pointer is odd: this is the last
 685                                          * TPL. Pointing to itself can cause
 686                                          * problems!
 687                                          */
 688         volatile u_int16_t Status;      /* Initialized by the adapter:
 689                                          * CSTAT_REQUEST important: update least
 690                                          * significant bit first! Set by the
 691                                          * adapter: CSTAT_COMPLETE status.
 692                                          */
 693         __be16 FrameSize;               /* Number of bytes to be transmitted
 694                                          * as a frame including AC/FC,
 695                                          * Destination, Source, Routing field
 696                                          * not including CRC, FS, End Delimiter
 697                                          * (valid only if START_FRAME bit in
 698                                          * CSTAT nonzero) must not be zero in
 699                                          * any list; maximum value: (BUFFER_SIZE
 700                                          * - 8) * TX_BUF_MAX sum of DataCount
 701                                          * values in FragmentList must equal
 702                                          * Frame_Size value in START_FRAME TPL!
 703                                          * frame data fragment list.
 704                                          */
 705
 706         /* TPL/RPL size in OPEN parameter list depending on maximal
 707          * numbers of fragments used in one parameter list.
 708          */
 709         Fragment FragList[TX_FRAG_NUM]; /* Maximum: nine frame fragments in one
 710                                          * TPL actual version of firmware: 9
 711                                          * fragments possible.
 712                                          */
 713 #pragma pack()
 714
 715         /* Special proprietary data and precalculations */
 716
 717         TPL *NextTPLPtr;                /* Pointer to next TPL in chain. */
 718         unsigned char *MData;
 719         struct sk_buff *Skb;
 720         unsigned char TPLIndex;
 721         volatile unsigned char BusyFlag;/* Flag: TPL busy? */
 722         dma_addr_t DMABuff;             /* DMA IO bus address from dma_map */
 723 };
 724
 725 /* ---------------------Receive Functions-------------------------------*
 726  * define RECEIVE_CSTAT_REQUEST (R) and RECEIVE_CSTAT_COMPLETE (C) values.
 727  * (high-low)
 728  */
 729 #define RX_VALID                0x0080  /* R: set; tell adapter with
 730                                          * RECEIVE.VALID interrupt.
 731                                          * C: reset to zero.
 732                                          */
 733 #define RX_FRAME_COMPLETE       0x0040  /* R: must be reset to zero,
 734                                          * C: set to one.
 735                                          */
 736 #define RX_START_FRAME          0x0020  /* R: must be reset to zero.
 737                                          * C: set to one on the list.
 738                                          */
 739 #define RX_END_FRAME            0x0010  /* R: must be reset to zero.
 740                                          * C: set to one on the list
 741                                          * that ends the frame.
 742                                          */
 743 #define RX_FRAME_IRQ            0x0008  /* R: request interrupt generation
 744                                          * after receive.
 745                                          * C: unchanged.
 746                                          */
 747 #define RX_INTERFRAME_WAIT      0x0004  /* R: after receiving a frame:
 748                                          * interrupt and wait for a
 749                                          * RECEIVE.CONTINUE.
 750                                          * C: unchanged.
 751                                          */
 752 #define RX_PASS_CRC             0x0002  /* R: if set, the adapter includes
 753                                          * the CRC in data passed. (last four
 754                                          * bytes; valid only if FRAME_START is
 755                                          * set)
 756                                          * C: set, if CRC is included in
 757                                          * received data.
 758                                          */
 759 #define RX_PASS_SRC_ADDR        0x0001  /* R: adapter uses explicit frame
 760                                          * source address and does not
 761                                          * overwrite with the adapter node
 762                                          * address. (valid only if FRAME_START
 763                                          * is set)
 764                                          * C: unchanged.
 765                                          */
 766 #define RX_RECEIVE_FS           0xFC00  /* R: reserved; must be reset to zero.
 767                                          * C: on lists with START_FRAME, field
 768                                          * contains frame status field from
 769                                          * received frame; otherwise cleared.
 770                                          */
 771 #define RX_ADDR_MATCH           0x0300  /* R: reserved; must be reset to zero.
 772                                          * C: address match code mask.
 773                                          */
 774 #define RX_STATUS_MASK          0x00FF  /* Mask for receive status bits. */
 775
 776 #define RX_INTERN_ADDR_MATCH    0x0100  /* C: internally address match. */
 777 #define RX_EXTERN_ADDR_MATCH    0x0200  /* C: externally matched via
 778                                          * XMATCH/XFAIL interface.
 779                                          */
 780 #define RX_INTEXT_ADDR_MATCH    0x0300  /* C: internally and externally
 781                                          * matched.
 782                                          */
 783 #define RX_READY (RX_VALID | RX_FRAME_IRQ) /* Ready for receive. */
 784
 785 /* Constants for Command Status Interrupt.
 786  * COMMAND_REJECT status field bit functions (SSB.Parm[0])
 787  */
 788 #define ILLEGAL_COMMAND         0x0080  /* Set if an unknown command
 789                                          * is issued to the adapter
 790                                          */
 791 #define ADDRESS_ERROR           0x0040  /* Set if any address field in
 792                                          * the SCB is odd. (not word aligned)
 793                                          */
 794 #define ADAPTER_OPEN            0x0020  /* Command issued illegal with
 795                                          * open adapter.
 796                                          */
 797 #define ADAPTER_CLOSE           0x0010  /* Command issued illegal with
 798                                          * closed adapter.
 799                                          */
 800 #define SAME_COMMAND            0x0008  /* Command issued with same command
 801                                          * already executing.
 802                                          */
 803
 804 /* OPEN_COMPLETION values (SSB.Parm[0], MSB) */
 805 #define NODE_ADDR_ERROR         0x0040  /* Wrong address or BIA read
 806                                          * zero address.
 807                                          */
 808 #define LIST_SIZE_ERROR         0x0020  /* If List_Size value not in 0,
 809                                          * 14, 20, 26.
 810                                          */
 811 #define BUF_SIZE_ERROR          0x0010  /* Not enough available memory for
 812                                          * two buffers.
 813                                          */
 814 #define TX_BUF_COUNT_ERROR      0x0004  /* Remaining receive buffers less than
 815                                          * two.
 816                                          */
 817 #define OPEN_ERROR              0x0002  /* Error during ring insertion; more
 818                                          * information in bits 8-15.
 819                                          */
 820
 821 /* Standard return codes */
 822 #define GOOD_COMPLETION         0x0080  /* =OPEN_SUCCESSFULL */
 823 #define INVALID_OPEN_OPTION     0x0001  /* OPEN options are not supported by
 824                                          * the adapter.
 825                                          */
 826
 827 /* OPEN phases; details of OPEN_ERROR (SSB.Parm[0], LSB)            */
 828 #define OPEN_PHASES_MASK            0xF000  /* Check only the bits 8-11. */
 829 #define LOBE_MEDIA_TEST             0x1000
 830 #define PHYSICAL_INSERTION          0x2000
 831 #define ADDRESS_VERIFICATION        0x3000
 832 #define PARTICIPATION_IN_RING_POLL  0x4000
 833 #define REQUEST_INITIALISATION      0x5000
 834 #define FULLDUPLEX_CHECK            0x6000
 835
 836 /* OPEN error codes; details of OPEN_ERROR (SSB.Parm[0], LSB) */
 837 #define OPEN_ERROR_CODES_MASK   0x0F00  /* Check only the bits 12-15. */
 838 #define OPEN_FUNCTION_FAILURE   0x0100  /* Unable to transmit to itself or
 839                                          * frames received before insertion.
 840                                          */
 841 #define OPEN_SIGNAL_LOSS        0x0200  /* Signal loss condition detected at
 842                                          * receiver.
 843                                          */
 844 #define OPEN_TIMEOUT            0x0500  /* Insertion timer expired before
 845                                          * logical insertion.
 846                                          */
 847 #define OPEN_RING_FAILURE       0x0600  /* Unable to receive own ring purge
 848                                          * MAC frames.
 849                                          */
 850 #define OPEN_RING_BEACONING     0x0700  /* Beacon MAC frame received after
 851                                          * ring insertion.
 852                                          */
 853 #define OPEN_DUPLICATE_NODEADDR 0x0800  /* Other station in ring found
 854                                          * with the same address.
 855                                          */
 856 #define OPEN_REQUEST_INIT       0x0900  /* RPS present but does not respond. */
 857 #define OPEN_REMOVE_RECEIVED    0x0A00  /* Adapter received a remove adapter
 858                                          * MAC frame.
 859                                          */
 860 #define OPEN_FULLDUPLEX_SET     0x0D00  /* Got this with full duplex on when
 861                                          * trying to connect to a normal ring.
 862                                          */
 863
 864 /* SET_BRIDGE_PARMS return codes: */
 865 #define BRIDGE_INVALID_MAX_LEN  0x4000  /* MAX_ROUTING_FIELD_LENGTH odd,
 866                                          * less than 6 or > 30.
 867                                          */
 868 #define BRIDGE_INVALID_SRC_RING 0x2000  /* SOURCE_RING number zero, too large
 869                                          * or = TARGET_RING.
 870                                          */
 871 #define BRIDGE_INVALID_TRG_RING 0x1000  /* TARGET_RING number zero, too large
 872                                          * or = SOURCE_RING.
 873                                          */
 874 #define BRIDGE_INVALID_BRDGE_NO 0x0800  /* BRIDGE_NUMBER too large. */
 875 #define BRIDGE_INVALID_OPTIONS  0x0400  /* Invalid bridge options. */
 876 #define BRIDGE_DIAGS_FAILED     0x0200  /* Diagnostics of TMS380SRA failed. */
 877 #define BRIDGE_NO_SRA           0x0100  /* The TMS380SRA does not exist in HW
 878                                          * configuration.
 879                                          */
 880
 881 /*
 882  * Bring Up Diagnostics error codes.
 883  */
 884 #define BUD_INITIAL_ERROR       0x0
 885 #define BUD_CHECKSUM_ERROR      0x1
 886 #define BUD_ADAPTER_RAM_ERROR   0x2
 887 #define BUD_INSTRUCTION_ERROR   0x3
 888 #define BUD_CONTEXT_ERROR       0x4
 889 #define BUD_PROTOCOL_ERROR      0x5
 890 #define BUD_INTERFACE_ERROR     0x6
 891
 892 /* BUD constants */
 893 #define BUD_MAX_RETRIES         3
 894 #define BUD_MAX_LOOPCNT         6
 895 #define BUD_TIMEOUT             3000
 896
 897 /* Initialization constants */
 898 #define INIT_MAX_RETRIES        3       /* Maximum three retries. */
 899 #define INIT_MAX_LOOPCNT        22      /* Maximum loop counts. */
 900
 901 /* RING STATUS field values (high/low) */
 902 #define SIGNAL_LOSS             0x0080  /* Loss of signal on the ring
 903                                          * detected.
 904                                          */
 905 #define HARD_ERROR              0x0040  /* Transmitting or receiving beacon
 906                                          * frames.
 907                                          */
 908 #define SOFT_ERROR              0x0020  /* Report error MAC frame
 909                                          * transmitted.
 910                                          */
 911 #define TRANSMIT_BEACON         0x0010  /* Transmitting beacon frames on the
 912                                          * ring.
 913                                          */
 914 #define LOBE_WIRE_FAULT         0x0008  /* Open or short circuit in the
 915                                          * cable to concentrator; adapter
 916                                          * closed.
 917                                          */
 918 #define AUTO_REMOVAL_ERROR      0x0004  /* Lobe wrap test failed, deinserted;
 919                                          * adapter closed.
 920                                          */
 921 #define REMOVE_RECEIVED         0x0001  /* Received a remove ring station MAC
 922                                          * MAC frame request; adapter closed.
 923                                          */
 924 #define COUNTER_OVERFLOW        0x8000  /* Overflow of one of the adapters
 925                                          * error counters; READ.ERROR.LOG.
 926                                          */
 927 #define SINGLE_STATION          0x4000  /* Adapter is the only station on the
 928                                          * ring.
 929                                          */
 930 #define RING_RECOVERY           0x2000  /* Claim token MAC frames on the ring;
 931                                          * reset after ring purge frame.
 932                                          */
 933
 934 #define ADAPTER_CLOSED (LOBE_WIRE_FAULT | AUTO_REMOVAL_ERROR |\
 935                         REMOVE_RECEIVED)
 936
 937 /* Adapter_check_block.Status field bit assignments: */
 938 #define DIO_PARITY              0x8000  /* Adapter detects bad parity
 939                                          * through direct I/O access.
 940                                          */
 941 #define DMA_READ_ABORT          0x4000  /* Aborting DMA read operation
 942                                          * from system Parm[0]: 0=timeout,
 943                                          * 1=parity error, 2=bus error;
 944                                          * Parm[1]: 32 bit pointer to host
 945                                          * system address at failure.
 946                                          */
 947 #define DMA_WRITE_ABORT         0x2000  /* Aborting DMA write operation
 948                                          * to system. (parameters analogous to
 949                                          * DMA_READ_ABORT)
 950                                          */
 951 #define ILLEGAL_OP_CODE         0x1000  /* Illegal operation code in the
 952                                          * the adapters firmware Parm[0]-2:
 953                                          * communications processor registers
 954                                          * R13-R15.
 955                                          */
 956 #define PARITY_ERRORS           0x0800  /* Adapter detects internal bus
 957                                          * parity error.
 958                                          */
 959 #define RAM_DATA_ERROR          0x0080  /* Valid only during RAM testing;
 960                                          * RAM data error Parm[0-1]: 32 bit
 961                                          * pointer to RAM location.
 962                                          */
 963 #define RAM_PARITY_ERROR        0x0040  /* Valid only during RAM testing;
 964                                          * RAM parity error Parm[0-1]: 32 bit
 965                                          * pointer to RAM location.
 966                                          */
 967 #define RING_UNDERRUN           0x0020  /* Internal DMA underrun when
 968                                          * transmitting onto ring.
 969                                          */
 970 #define INVALID_IRQ             0x0008  /* Unrecognized interrupt generated
 971                                          * internal to adapter Parm[0-2]:
 972                                          * adapter register R13-R15.
 973                                          */
 974 #define INVALID_ERROR_IRQ       0x0004  /* Unrecognized error interrupt
 975                                          * generated Parm[0-2]: adapter register
 976                                          * R13-R15.
 977                                          */
 978 #define INVALID_XOP             0x0002  /* Unrecognized XOP request in
 979                                          * communication processor Parm[0-2]:
 980                                          * adapter register R13-R15.
 981                                          */
 982 #define CHECKADDR               0x05E0  /* Adapter check status information
 983                                          * address offset.
 984                                          */
 985 #define ROM_PAGE_0              0x0000  /* Adapter ROM page 0. */
 986
 987 /*
 988  * RECEIVE.STATUS interrupt result SSB values: (high-low)
 989  * (RECEIVE_COMPLETE field bit definitions in SSB.Parm[0])
 990  */
 991 #define RX_COMPLETE             0x0080  /* SSB.Parm[0]; SSB.Parm[1]: 32
 992                                          * bit pointer to last RPL.
 993                                          */
 994 #define RX_SUSPENDED            0x0040  /* SSB.Parm[0]; SSB.Parm[1]: 32
 995                                          * bit pointer to RPL with odd
 996                                          * forward pointer.
 997                                          */
 998
 999 /* Valid receive CSTAT: */
1000 #define RX_FRAME_CONTROL_BITS (RX_VALID | RX_START_FRAME | RX_END_FRAME | \
1001                                RX_FRAME_COMPLETE)
1002 #define VALID_SINGLE_BUFFER_FRAME (RX_START_FRAME | RX_END_FRAME | \
1003                                    RX_FRAME_COMPLETE)
1004
1005 typedef enum SKB_STAT SKB_STAT;
1006 enum SKB_STAT {
1007         SKB_UNAVAILABLE,
1008         SKB_DMA_DIRECT,
1009         SKB_DATA_COPY
1010 };
1011
1012 /* Receive Parameter List (RPL) The length of the RPLs has to be initialized
1013  * in the OPL. (OPEN parameter list)
1014  */
1015 #define RPL_NUM         3
1016
1017 #define RX_FRAG_NUM     1       /* Maximal number of used fragments in one RPL.
1018                                  * (up to firmware v2.24: 3, now: up to 9)
1019                                  */
1020
1021 #pragma pack(1)
1022 typedef struct s_RPL RPL;
1023 struct s_RPL {  /* Receive Parameter List */
1024         __be32 NextRPLAddr;             /* Pointer to next RPL in chain
1025                                          * (normalized = physical 32 bit
1026                                          * address) if pointer is odd: this
1027                                          * is last RPL. Pointing to itself can
1028                                          * cause problems!
1029                                          */
1030         volatile u_int16_t Status;      /* Set by creation of Receive Parameter
1031                                          * List RECEIVE_CSTAT_COMPLETE set by
1032                                          * adapter in lists that start or end
1033                                          * a frame.
1034                                          */
1035         volatile __be16 FrameSize;       /* Number of bytes received as a
1036                                          * frame including AC/FC, Destination,
1037                                          * Source, Routing field not including
1038                                          * CRC, FS (Frame Status), End Delimiter
1039                                          * (valid only if START_FRAME bit in
1040                                          * CSTAT nonzero) must not be zero in
1041                                          * any list; maximum value: (BUFFER_SIZE
1042                                          * - 8) * TX_BUF_MAX sum of DataCount
1043                                          * values in FragmentList must equal
1044                                          * Frame_Size value in START_FRAME TPL!
1045                                          * frame data fragment list
1046                                          */
1047
1048         /* TPL/RPL size in OPEN parameter list depending on maximal numbers
1049          * of fragments used in one parameter list.
1050          */
1051         Fragment FragList[RX_FRAG_NUM]; /* Maximum: nine frame fragments in
1052                                          * one TPL. Actual version of firmware:
1053                                          * 9 fragments possible.
1054                                          */
1055 #pragma pack()
1056
1057         /* Special proprietary data and precalculations. */
1058         RPL *NextRPLPtr;        /* Logical pointer to next RPL in chain. */
1059         unsigned char *MData;
1060         struct sk_buff *Skb;
1061         SKB_STAT SkbStat;
1062         int RPLIndex;
1063         dma_addr_t DMABuff;             /* DMA IO bus address from dma_map */
1064 };
1065
1066 /* Information that need to be kept for each board. */
1067 typedef struct net_local {
1068 #pragma pack(1)
1069         IPB ipb;        /* Initialization Parameter Block. */
1070         SCB scb;        /* System Command Block: system to adapter
1071                          * communication.
1072                          */
1073         SSB ssb;        /* System Status Block: adapter to system
1074                          * communication.
1075                          */
1076         OPB ocpl;       /* Open Options Parameter Block. */
1077
1078         ERRORTAB errorlogtable; /* Adapter statistic error counters.
1079                                  * (read from adapter memory)
1080                                  */
1081         unsigned char ProductID[PROD_ID_SIZE + 1]; /* Product ID */
1082 #pragma pack()
1083
1084         TPL Tpl[TPL_NUM];
1085         TPL *TplFree;
1086         TPL *TplBusy;
1087         unsigned char LocalTxBuffers[TPL_NUM][DEFAULT_PACKET_SIZE];
1088
1089         RPL Rpl[RPL_NUM];
1090         RPL *RplHead;
1091         RPL *RplTail;
1092         unsigned char LocalRxBuffers[RPL_NUM][DEFAULT_PACKET_SIZE];
1093
1094         struct device *pdev;
1095         int DataRate;
1096         unsigned char ScbInUse;
1097         unsigned short CMDqueue;
1098
1099         unsigned long AdapterOpenFlag:1;
1100         unsigned long AdapterVirtOpenFlag:1;
1101         unsigned long OpenCommandIssued:1;
1102         unsigned long TransmitCommandActive:1;
1103         unsigned long TransmitHaltScheduled:1;
1104         unsigned long HaltInProgress:1;
1105         unsigned long LobeWireFaultLogged:1;
1106         unsigned long ReOpenInProgress:1;
1107         unsigned long Sleeping:1;
1108
1109         unsigned long LastOpenStatus;
1110         unsigned short CurrentRingStatus;
1111         unsigned long MaxPacketSize;
1112
1113         unsigned long StartTime;
1114         unsigned long LastSendTime;
1115
1116         struct tr_statistics MacStat;   /* MAC statistics structure */
1117
1118         unsigned long dmalimit; /* the max DMA address (ie, ISA) */
1119         dma_addr_t    dmabuffer; /* the DMA bus address corresponding to
1120                                     priv. Might be different from virt_to_bus()
1121                                     for architectures with IO MMU (Alpha) */
1122
1123         struct timer_list timer;
1124
1125         wait_queue_head_t  wait_for_tok_int;
1126
1127         INTPTRS intptrs;        /* Internal adapter pointer. Must be read
1128                                  * before OPEN command.
1129                                  */
1130         unsigned short (*setnselout)(struct net_device *);
1131         unsigned short (*sifreadb)(struct net_device *, unsigned short);
1132         void (*sifwriteb)(struct net_device *, unsigned short, unsigned short);
1133         unsigned short (*sifreadw)(struct net_device *, unsigned short);
1134         void (*sifwritew)(struct net_device *, unsigned short, unsigned short);
1135
1136         spinlock_t lock;                /* SMP protection */
1137         void *tmspriv;
1138 } NET_LOCAL;
1139
1140 #endif  /* __KERNEL__ */
1141 #endif  /* __LINUX_TMS380TR_H */