Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
[linux-2.6.git] / 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 promiscous 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 */