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-rw-r--r--drivers/net/tokenring/tms380tr.h1141
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diff --git a/drivers/net/tokenring/tms380tr.h b/drivers/net/tokenring/tms380tr.h
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index 000000000000..f2c5ba0f37a5
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1/*
2 * tms380tr.h: TI TMS380 Token Ring driver for Linux
3 *
4 * Authors:
5 * - Christoph Goos <cgoos@syskonnect.de>
6 * - Adam Fritzler <mid@auk.cx>
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 */
17int tms380tr_open(struct net_device *dev);
18int tms380tr_close(struct net_device *dev);
19irqreturn_t tms380tr_interrupt(int irq, void *dev_id, struct pt_regs *regs);
20int tmsdev_init(struct net_device *dev, unsigned long dmalimit,
21 struct pci_dev *pdev);
22void tmsdev_term(struct net_device *dev);
23void 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)
361typedef 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)
471typedef 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 u_int16_t 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 u_int16_t TxListSize; /* TPL size */
486 u_int16_t 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)
510typedef 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)
523typedef 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
531typedef 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)
547typedef 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)
583typedef struct {
584 u_int16_t 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 u_int32_t 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)
680typedef struct s_TPL TPL;
681
682struct s_TPL { /* Transmit Parameter List (align on even word boundaries) */
683 u_int32_t 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 u_int16_t 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 pci_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
1005typedef enum SKB_STAT SKB_STAT;
1006enum 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)
1022typedef struct s_RPL RPL;
1023struct s_RPL { /* Receive Parameter List */
1024 u_int32_t 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 u_int16_t 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 pci_map */
1064};
1065
1066/* Information that need to be kept for each board. */
1067typedef 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 pci_dev *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 */
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