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/* module prototypes */
15int tms380tr_open(struct net_device *dev);
16int tms380tr_close(struct net_device *dev);
17void tms380tr_interrupt(int irq, void *dev_id, struct pt_regs *regs);
18int tmsdev_init(struct net_device *dev, unsigned long dmalimit,
19		struct pci_dev *pdev);
20void tmsdev_term(struct net_device *dev);
21void tms380tr_wait(unsigned long time);
22
23#define TMS380TR_MAX_ADAPTERS 7
24
25#define SEND_TIMEOUT 10*HZ
26
27#define TR_RCF_LONGEST_FRAME_MASK 0x0070
28#define TR_RCF_FRAME4K 0x0030
29
30/*------------------------------------------------------------------*/
31/*  Bit order for adapter communication with DMA		    */
32/*  --------------------------------------------------------------  */
33/*  Bit  8 | 9| 10| 11|| 12| 13| 14| 15|| 0| 1| 2| 3|| 4| 5| 6| 7|  */
34/*  --------------------------------------------------------------  */
35/*  The bytes in a word must be byte swapped. Also, if a double	    */
36/*  word is used for storage, then the words, as well as the bytes, */
37/*  must be swapped. 						    */
38/*  Bit order for adapter communication with DIO 		    */
39/*  --------------------------------------------------------------  */
40/*  Bit  0 | 1| 2| 3|| 4| 5| 6| 7|| 8| 9| 10| 11|| 12| 13| 14| 15|  */
41/*  --------------------------------------------------------------  */
42/*------------------------------------------------------------------*/
43
44/* Swap words of a long.                        */
45#define SWAPW(x) (((x) << 16) | ((x) >> 16))
46
47/* Get the low byte of a word.                      */
48#define LOBYTE(w)       ((unsigned char)(w))
49
50/* Get the high byte of a word.                     */
51#define HIBYTE(w)       ((unsigned char)((unsigned short)(w) >> 8))
52
53/* Get the low word of a long.                      */
54#define LOWORD(l)       ((unsigned short)(l))
55
56/* Get the high word of a long.                     */
57#define HIWORD(l)       ((unsigned short)((unsigned long)(l) >> 16))
58
59
60
61/* Token ring adapter I/O addresses for normal mode. */
62
63/*
64 * The SIF registers.  Common to all adapters.
65 */
66/* Basic SIF (SRSX = 0) */
67#define SIFDAT      		0x00	/* SIF/DMA data. */
68#define SIFINC      		0x02  	/* IO Word data with auto increment. */
69#define SIFINH      		0x03  	/* IO Byte data with auto increment. */
70#define SIFADR      		0x04  	/* SIF/DMA Address. */
71#define SIFCMD      		0x06  	/* SIF Command. */
72#define SIFSTS      		0x06  	/* SIF Status. */
73
74/* "Extended" SIF (SRSX = 1) */
75#define SIFACL      		0x08  	/* SIF Adapter Control Register. */
76#define SIFADD      		0x0a 	/* SIF/DMA Address. -- 0x0a */
77#define SIFADX      		0x0c     /* 0x0c */
78#define DMALEN      		0x0e 	/* SIF DMA length. -- 0x0e */
79
80/*
81 * POS Registers.  Only for ISA Adapters.
82 */
83#define POSREG      		0x10 	/* Adapter Program Option Select (POS)
84			 		 * Register: base IO address + 16 byte.
85			 		 */
86#define POSREG_2    		24L 	/* only for TR4/16+ adapter
87			 		 * base IO address + 24 byte. -- 0x18
88			 		 */
89
90/* SIFCMD command codes (high-low) */
91#define CMD_INTERRUPT_ADAPTER   0x8000  /* Cause internal adapter interrupt */
92#define CMD_ADAPTER_RESET   	0x4000  /* Hardware reset of adapter */
93#define CMD_SSB_CLEAR		0x2000  /* Acknowledge to adapter to
94					 * system interrupts.
95					 */
96#define CMD_EXECUTE		0x1000	/* Execute SCB command */
97#define CMD_SCB_REQUEST		0x0800  /* Request adapter to interrupt
98					 * system when SCB is available for
99					 * another command.
100					 */
101#define CMD_RX_CONTINUE		0x0400  /* Continue receive after odd pointer
102					 * stop. (odd pointer receive method)
103					 */
104#define CMD_RX_VALID		0x0200  /* Now actual RPL is valid. */
105#define CMD_TX_VALID		0x0100  /* Now actual TPL is valid. (valid
106					 * bit receive/transmit method)
107					 */
108#define CMD_SYSTEM_IRQ		0x0080  /* Adapter-to-attached-system
109					 * interrupt is reset.
110					 */
111#define CMD_CLEAR_SYSTEM_IRQ	0x0080	/* Clear SYSTEM_INTERRUPT bit.
112					 * (write: 1=ignore, 0=reset)
113					 */
114#define EXEC_SOFT_RESET		0xFF00  /* adapter soft reset. (restart
115					 * adapter after hardware reset)
116					 */
117
118
119/* ACL commands (high-low) */
120#define ACL_SWHLDA		0x0800  /* Software hold acknowledge. */
121#define ACL_SWDDIR		0x0400  /* Data transfer direction. */
122#define ACL_SWHRQ		0x0200  /* Pseudo DMA operation. */
123#define ACL_PSDMAEN		0x0100  /* Enable pseudo system DMA. */
124#define ACL_ARESET		0x0080  /* Adapter hardware reset command.
125					 * (held in reset condition as
126					 * long as bit is set)
127					 */
128#define ACL_CPHALT		0x0040  /* Communication processor halt.
129					 * (can only be set while ACL_ARESET
130					 * bit is set; prevents adapter
131					 * processor from executing code while
132					 * downloading firmware)
133					 */
134#define ACL_BOOT		0x0020
135#define ACL_SINTEN		0x0008  /* System interrupt enable/disable
136					 * (1/0): can be written if ACL_ARESET
137					 * is zero.
138					 */
139#define ACL_PEN                 0x0004
140
141#define ACL_NSELOUT0            0x0002
142#define ACL_NSELOUT1            0x0001	/* NSELOUTx have a card-specific
143					 * meaning for setting ring speed.
144					 */
145
146#define PS_DMA_MASK		(ACL_SWHRQ | ACL_PSDMAEN)
147
148
149/* SIFSTS register return codes (high-low) */
150#define STS_SYSTEM_IRQ		0x0080	/* Adapter-to-attached-system
151					 * interrupt is valid.
152					 */
153#define STS_INITIALIZE		0x0040  /* INITIALIZE status. (ready to
154					 * initialize)
155					 */
156#define STS_TEST		0x0020  /* TEST status. (BUD not completed) */
157#define STS_ERROR		0x0010  /* ERROR status. (unrecoverable
158					 * HW error occurred)
159					 */
160#define STS_MASK		0x00F0  /* Mask interesting status bits. */
161#define STS_ERROR_MASK		0x000F  /* Get Error Code by masking the
162					 * interrupt code bits.
163					 */
164#define ADAPTER_INT_PTRS	0x0A00  /* Address offset of adapter internal
165					 * pointers 01:0a00 (high-low) have to
166					 * be read after init and before open.
167					 */
168
169
170/* Interrupt Codes (only MAC IRQs) */
171#define STS_IRQ_ADAPTER_CHECK	0x0000	/* unrecoverable hardware or
172					 * software error.
173					 */
174#define STS_IRQ_RING_STATUS	0x0004  /* SSB is updated with ring status. */
175#define STS_IRQ_LLC_STATUS	0x0005	/* Not used in MAC-only microcode */
176#define STS_IRQ_SCB_CLEAR	0x0006	/* SCB clear, following an
177					 * SCB_REQUEST IRQ.
178					 */
179#define STS_IRQ_TIMER		0x0007	/* Not normally used in MAC ucode */
180#define STS_IRQ_COMMAND_STATUS	0x0008	/* SSB is updated with command
181					 * status.
182					 */
183#define STS_IRQ_RECEIVE_STATUS	0x000A	/* SSB is updated with receive
184					 * status.
185					 */
186#define STS_IRQ_TRANSMIT_STATUS	0x000C	/* SSB is updated with transmit
187                                         * status
188					 */
189#define STS_IRQ_RECEIVE_PENDING	0x000E	/* Not used in MAC-only microcode */
190#define STS_IRQ_MASK		0x000F	/* = STS_ERROR_MASK. */
191
192
193/* TRANSMIT_STATUS completion code: (SSB.Parm[0]) */
194#define COMMAND_COMPLETE	0x0080	/* TRANSMIT command completed
195                                         * (avoid this!) issue another transmit
196					 * to send additional frames.
197					 */
198#define FRAME_COMPLETE		0x0040	/* Frame has been transmitted;
199					 * INTERRUPT_FRAME bit was set in the
200					 * CSTAT request; indication of possibly
201					 * more than one frame transmissions!
202					 * SSB.Parm[0-1]: 32 bit pointer to
203					 * TPL of last frame.
204					 */
205#define LIST_ERROR		0x0020	/* Error in one of the TPLs that
206					 * compose the frame; TRANSMIT
207					 * terminated; Parm[1-2]: 32bit pointer
208					 * to TPL which starts the error
209					 * frame; error details in bits 8-13.
210					 * (14?)
211					 */
212#define FRAME_SIZE_ERROR	0x8000	/* FRAME_SIZE does not equal the sum of
213					 * the valid DATA_COUNT fields;
214					 * FRAME_SIZE less than header plus
215					 * information field. (15 bytes +
216					 * routing field) Or if FRAME_SIZE
217					 * was specified as zero in one list.
218					 */
219#define TX_THRESHOLD		0x4000	/* FRAME_SIZE greater than (BUFFER_SIZE
220					 * - 9) * TX_BUF_MAX.
221					 */
222#define ODD_ADDRESS		0x2000	/* Odd forward pointer value is
223					 * read on a list without END_FRAME
224					 * indication.
225					 */
226#define FRAME_ERROR		0x1000	/* START_FRAME bit (not) anticipated,
227					 * but (not) set.
228					 */
229#define ACCESS_PRIORITY_ERROR	0x0800	/* Access priority requested has not
230					 * been allowed.
231					 */
232#define UNENABLED_MAC_FRAME	0x0400	/* MAC frame has source class of zero
233					 * or MAC frame PCF ATTN field is
234					 * greater than one.
235					 */
236#define ILLEGAL_FRAME_FORMAT	0x0200	/* Bit 0 or FC field was set to one. */
237
238
239/*
240 * Since we need to support some functions even if the adapter is in a
241 * CLOSED state, we have a (pseudo-) command queue which holds commands
242 * that are outstandig to be executed.
243 *
244 * Each time a command completes, an interrupt occurs and the next
245 * command is executed. The command queue is actually a simple word with
246 * a bit for each outstandig command. Therefore the commands will not be
247 * executed in the order they have been queued.
248 *
249 * The following defines the command code bits and the command queue:
250 */
251#define OC_OPEN			0x0001	/* OPEN command */
252#define OC_TRANSMIT		0x0002	/* TRANSMIT command */
253#define OC_TRANSMIT_HALT	0x0004	/* TRANSMIT_HALT command */
254#define OC_RECEIVE		0x0008	/* RECEIVE command */
255#define OC_CLOSE		0x0010	/* CLOSE command */
256#define OC_SET_GROUP_ADDR	0x0020	/* SET_GROUP_ADDR command */
257#define OC_SET_FUNCT_ADDR	0x0040	/* SET_FUNCT_ADDR command */
258#define OC_READ_ERROR_LOG	0x0080	/* READ_ERROR_LOG command */
259#define OC_READ_ADAPTER		0x0100	/* READ_ADAPTER command */
260#define OC_MODIFY_OPEN_PARMS	0x0400	/* MODIFY_OPEN_PARMS command */
261#define OC_RESTORE_OPEN_PARMS	0x0800	/* RESTORE_OPEN_PARMS command */
262#define OC_SET_FIRST_16_GROUP	0x1000	/* SET_FIRST_16_GROUP command */
263#define OC_SET_BRIDGE_PARMS	0x2000	/* SET_BRIDGE_PARMS command */
264#define OC_CONFIG_BRIDGE_PARMS	0x4000	/* CONFIG_BRIDGE_PARMS command */
265
266#define OPEN			0x0300	/* C: open command. S: completion. */
267#define TRANSMIT		0x0400	/* C: transmit command. S: completion
268					 * status. (reject: COMMAND_REJECT if
269					 * adapter not opened, TRANSMIT already
270					 * issued or address passed in the SCB
271					 * not word aligned)
272					 */
273#define TRANSMIT_HALT		0x0500	/* C: interrupt TX TPL chain; if no
274					 * TRANSMIT command issued, the command
275					 * is ignored (completion with TRANSMIT
276					 * status (0x0400)!)
277					 */
278#define RECEIVE			0x0600	/* C: receive command. S: completion
279					 * status. (reject: COMMAND_REJECT if
280					 * adapter not opened, RECEIVE already
281					 * issued or address passed in the SCB
282					 * not word aligned)
283					 */
284#define CLOSE			0x0700	/* C: close adapter. S: completion.
285					 * (COMMAND_REJECT if adapter not open)
286					 */
287#define SET_GROUP_ADDR		0x0800	/* C: alter adapter group address after
288					 * OPEN. S: completion. (COMMAND_REJECT
289					 * if adapter not open)
290					 */
291#define SET_FUNCT_ADDR		0x0900	/* C: alter adapter functional address
292					 * after OPEN. S: completion.
293					 * (COMMAND_REJECT if adapter not open)
294					 */
295#define READ_ERROR_LOG		0x0A00	/* C: read adapter error counters.
296					 * S: completion. (command ignored
297					 * if adapter not open!)
298					 */
299#define READ_ADAPTER		0x0B00	/* C: read data from adapter memory.
300					 * (important: after init and before
301					 * open!) S: completion. (ADAPTER_CHECK
302					 * interrupt if undefined storage area
303					 * read)
304					 */
305#define MODIFY_OPEN_PARMS	0x0D00	/* C: modify some adapter operational
306					 * parameters. (bit correspondend to
307					 * WRAP_INTERFACE is ignored)
308					 * S: completion. (reject:
309					 * COMMAND_REJECT)
310					 */
311#define RESTORE_OPEN_PARMS	0x0E00	/* C: modify some adapter operational
312					 * parameters. (bit correspondend
313					 * to WRAP_INTERFACE is ignored)
314					 * S: completion. (reject:
315					 * COMMAND_REJECT)
316					 */
317#define SET_FIRST_16_GROUP	0x0F00	/* C: alter the first two bytes in
318					 * adapter group address.
319					 * S: completion. (reject:
320					 * COMMAND_REJECT)
321					 */
322#define SET_BRIDGE_PARMS	0x1000	/* C: values and conditions for the
323					 * adapter hardware to use when frames
324					 * are copied for forwarding.
325					 * S: completion. (reject:
326					 * COMMAND_REJECT)
327					 */
328#define CONFIG_BRIDGE_PARMS	0x1100	/* C: ..
329					 * S: completion. (reject:
330					 * COMMAND_REJECT)
331					 */
332
333#define SPEED_4			4
334#define SPEED_16		16	/* Default transmission speed  */
335
336
337/* Initialization Parameter Block (IPB); word alignment necessary! */
338#define BURST_SIZE	0x0018	/* Default burst size */
339#define BURST_MODE	0x9F00	/* Burst mode enable */
340#define DMA_RETRIES	0x0505	/* Magic DMA retry number... */
341
342#define CYCLE_TIME	3	/* Default AT-bus cycle time: 500 ns
343				 * (later adapter version: fix  cycle time!)
344				 */
345#define LINE_SPEED_BIT	0x80
346
347/* Macro definition for the wait function. */
348#define ONE_SECOND_TICKS	1000000
349#define HALF_SECOND		(ONE_SECOND_TICKS / 2)
350#define ONE_SECOND		(ONE_SECOND_TICKS)
351#define TWO_SECONDS		(ONE_SECOND_TICKS * 2)
352#define THREE_SECONDS		(ONE_SECOND_TICKS * 3)
353#define FOUR_SECONDS		(ONE_SECOND_TICKS * 4)
354#define FIVE_SECONDS		(ONE_SECOND_TICKS * 5)
355
356#define BUFFER_SIZE 		2048	/* Buffers on Adapter */
357
358#pragma pack(1)
359typedef struct {
360	unsigned short Init_Options;	/* Initialize with burst mode;
361					 * LLC disabled. (MAC only)
362					 */
363
364	/* Interrupt vectors the adapter places on attached system bus. */
365	u_int8_t  CMD_Status_IV;    /* Interrupt vector: command status. */
366	u_int8_t  TX_IV;	    /* Interrupt vector: transmit. */
367	u_int8_t  RX_IV;	    /* Interrupt vector: receive. */
368	u_int8_t  Ring_Status_IV;   /* Interrupt vector: ring status. */
369	u_int8_t  SCB_Clear_IV;	    /* Interrupt vector: SCB clear. */
370	u_int8_t  Adapter_CHK_IV;   /* Interrupt vector: adapter check. */
371
372	u_int16_t RX_Burst_Size;    /* Max. number of transfer cycles. */
373	u_int16_t TX_Burst_Size;    /* During DMA burst; even value! */
374	u_int16_t DMA_Abort_Thrhld; /* Number of DMA retries. */
375
376	u_int32_t SCB_Addr;   /* SCB address: even, word aligned, high-low */
377	u_int32_t SSB_Addr;   /* SSB address: even, word aligned, high-low */
378} IPB, *IPB_Ptr;
379#pragma pack()
380
381/*
382 * OPEN Command Parameter List (OCPL) (can be reused, if the adapter has to
383 * be reopened)
384 */
385#define BUFFER_SIZE	2048		/* Buffers on Adapter. */
386#define TPL_SIZE	8+6*TX_FRAG_NUM /* Depending on fragments per TPL. */
387#define RPL_SIZE	14		/* (with TI firmware v2.26 handling
388					 * up to nine fragments possible)
389					 */
390#define TX_BUF_MIN	20		/* ??? (Stephan: calculation with */
391#define TX_BUF_MAX	40		/* BUFFER_SIZE and MAX_FRAME_SIZE) ???
392					 */
393#define DISABLE_EARLY_TOKEN_RELEASE 	0x1000
394
395/* OPEN Options (high-low) */
396#define WRAP_INTERFACE		0x0080	/* Inserting omitted for test
397					 * purposes; transmit data appears
398					 * as receive data. (useful for
399					 * testing; change: CLOSE necessary)
400					 */
401#define DISABLE_HARD_ERROR	0x0040	/* On HARD_ERROR & TRANSMIT_BEACON
402					 * no RING.STATUS interrupt.
403					 */
404#define DISABLE_SOFT_ERROR	0x0020	/* On SOFT_ERROR, no RING.STATUS
405					 * interrupt.
406					 */
407#define PASS_ADAPTER_MAC_FRAMES	0x0010	/* Passing unsupported MAC frames
408					 * to system.
409					 */
410#define PASS_ATTENTION_FRAMES	0x0008	/* All changed attention MAC frames are
411					 * passed to the system.
412					 */
413#define PAD_ROUTING_FIELD	0x0004	/* Routing field is padded to 18
414					 * bytes.
415					 */
416#define FRAME_HOLD		0x0002	/*Adapter waits for entire frame before
417					 * initiating DMA transfer; otherwise:
418					 * DMA transfer initiation if internal
419					 * buffer filled.
420					 */
421#define CONTENDER		0x0001	/* Adapter participates in the monitor
422					 * contention process.
423					 */
424#define PASS_BEACON_MAC_FRAMES	0x8000	/* Adapter passes beacon MAC frames
425					 * to the system.
426					 */
427#define EARLY_TOKEN_RELEASE 	0x1000	/* Only valid in 16 Mbps operation;
428					 * 0 = ETR. (no effect in 4 Mbps
429					 * operation)
430					 */
431#define COPY_ALL_MAC_FRAMES	0x0400	/* All MAC frames are copied to
432					 * the system. (after OPEN: duplicate
433					 * address test (DAT) MAC frame is
434					 * first received frame copied to the
435					 * system)
436					 */
437#define COPY_ALL_NON_MAC_FRAMES	0x0200	/* All non MAC frames are copied to
438					 * the system.
439					 */
440#define PASS_FIRST_BUF_ONLY	0x0100	/* Passes only first internal buffer
441					 * of each received frame; FrameSize
442					 * of RPLs must contain internal
443					 * BUFFER_SIZE bits for promiscous mode.
444					 */
445#define ENABLE_FULL_DUPLEX_SELECTION	0x2000
446 					/* Enable the use of full-duplex
447					 * settings with bits in byte 22 in
448					 * ocpl. (new feature in firmware
449					 * version 3.09)
450					 */
451
452/* Full-duplex settings */
453#define OPEN_FULL_DUPLEX_OFF	0x0000
454#define OPEN_FULL_DUPLEX_ON	0x00c0
455#define OPEN_FULL_DUPLEX_AUTO	0x0080
456
457#define PROD_ID_SIZE	18	/* Length of product ID. */
458
459#define TX_FRAG_NUM	3	 /* Number of fragments used in one TPL. */
460#define TX_MORE_FRAGMENTS 0x8000 /* Bit set in DataCount to indicate more
461				  * fragments following.
462				  */
463
464#define ISA_MAX_ADDRESS 	0x00ffffff
465#define PCI_MAX_ADDRESS		0xffffffff
466
467#pragma pack(1)
468typedef struct {
469	u_int16_t OPENOptions;
470	u_int8_t  NodeAddr[6];	/* Adapter node address; use ROM
471				 * address
472				 */
473	u_int32_t GroupAddr;	/* Multicast: high order
474				 * bytes = 0xC000
475				 */
476	u_int32_t FunctAddr;	/* High order bytes = 0xC000 */
477	u_int16_t RxListSize;	/* RPL size: 0 (=26), 14, 20 or
478				 * 26 bytes read by the adapter.
479				 * (Depending on the number of
480				 * fragments/list)
481				 */
482	u_int16_t TxListSize;	/* TPL size */
483	u_int16_t BufSize;	/* Is automatically rounded up to the
484				 * nearest nK boundary.
485				 */
486	u_int16_t FullDuplex;
487	u_int16_t Reserved;
488	u_int8_t  TXBufMin;	/* Number of adapter buffers reserved
489				 * for transmission a minimum of 2
490				 * buffers must be allocated.
491				 */
492	u_int8_t  TXBufMax;	/* Maximum number of adapter buffers
493				 * for transmit; a minimum of 2 buffers
494				 * must be available for receive.
495				 * Default: 6
496				 */
497	u_int16_t ProdIDAddr[2];/* Pointer to product ID. */
498} OPB, *OPB_Ptr;
499#pragma pack()
500
501/*
502 * SCB: adapter commands enabled by the host system started by writing
503 * CMD_INTERRUPT_ADAPTER | CMD_EXECUTE (|SCB_REQUEST) to the SIFCMD IO
504 * register. (special case: | CMD_SYSTEM_IRQ for initialization)
505 */
506#pragma pack(1)
507typedef struct {
508	u_int16_t CMD;		/* Command code */
509	u_int16_t Parm[2];	/* Pointer to Command Parameter Block */
510} SCB;	/* System Command Block (32 bit physical address; big endian)*/
511#pragma pack()
512
513/*
514 * SSB: adapter command return status can be evaluated after COMMAND_STATUS
515 * adapter to system interrupt after reading SSB, the availability of the SSB
516 * has to be told the adapter by writing CMD_INTERRUPT_ADAPTER | CMD_SSB_CLEAR
517 * in the SIFCMD IO register.
518 */
519#pragma pack(1)
520typedef struct {
521	u_int16_t STS;		/* Status code */
522	u_int16_t Parm[3];	/* Parameter or pointer to Status Parameter
523				 * Block.
524				 */
525} SSB;	/* System Status Block (big endian - physical address)  */
526#pragma pack()
527
528typedef struct {
529	unsigned short BurnedInAddrPtr;	/* Pointer to adapter burned in
530					 * address. (BIA)
531					 */
532	unsigned short SoftwareLevelPtr;/* Pointer to software level data. */
533	unsigned short AdapterAddrPtr;	/* Pointer to adapter addresses. */
534	unsigned short AdapterParmsPtr;	/* Pointer to adapter parameters. */
535	unsigned short MACBufferPtr;	/* Pointer to MAC buffer. (internal) */
536	unsigned short LLCCountersPtr;	/* Pointer to LLC counters.  */
537	unsigned short SpeedFlagPtr;	/* Pointer to data rate flag.
538					 * (4/16 Mbps)
539					 */
540	unsigned short AdapterRAMPtr;	/* Pointer to adapter RAM found. (KB) */
541} INTPTRS;	/* Adapter internal pointers */
542
543#pragma pack(1)
544typedef struct {
545	u_int8_t  Line_Error;		/* Line error: code violation in
546					 * frame or in a token, or FCS error.
547					 */
548	u_int8_t  Internal_Error;	/* IBM specific. (Reserved_1) */
549	u_int8_t  Burst_Error;
550	u_int8_t  ARI_FCI_Error;	/* ARI/FCI bit zero in AMP or
551					 * SMP MAC frame.
552					 */
553	u_int8_t  AbortDelimeters;	/* IBM specific. (Reserved_2) */
554	u_int8_t  Reserved_3;
555	u_int8_t  Lost_Frame_Error;	/* Receive of end of transmitted
556					 * frame failed.
557					 */
558	u_int8_t  Rx_Congest_Error;	/* Adapter in repeat mode has not
559					 * enough buffer space to copy incoming
560					 * frame.
561					 */
562	u_int8_t  Frame_Copied_Error;	/* ARI bit not zero in frame
563					 * addressed to adapter.
564					 */
565	u_int8_t  Frequency_Error;	/* IBM specific. (Reserved_4) */
566	u_int8_t  Token_Error;		/* (active only in monitor station) */
567	u_int8_t  Reserved_5;
568	u_int8_t  DMA_Bus_Error;	/* DMA bus errors not exceeding the
569					 * abort thresholds.
570					 */
571	u_int8_t  DMA_Parity_Error;	/* DMA parity errors not exceeding
572					 * the abort thresholds.
573					 */
574} ERRORTAB;	/* Adapter error counters */
575#pragma pack()
576
577
578/*--------------------- Send and Receive definitions -------------------*/
579#pragma pack(1)
580typedef struct {
581	u_int16_t DataCount;	/* Value 0, even and odd values are
582				 * permitted; value is unaltered most
583				 * significant bit set: following
584				 * fragments last fragment: most
585				 * significant bit is not evaluated.
586				 * (???)
587				 */
588	u_int32_t DataAddr;	/* Pointer to frame data fragment;
589				 * even or odd.
590				 */
591} Fragment;
592#pragma pack()
593
594#define MAX_FRAG_NUMBERS    9	/* Maximal number of fragments possible to use
595				 * in one RPL/TPL. (depending on TI firmware
596				 * version)
597				 */
598#define MAX_TX_QUEUE	    10	/* Maximal number of skb's queued in driver. */
599
600/*
601 * AC (1), FC (1), Dst (6), Src (6), RIF (18), Data (4472) = 4504
602 * The packet size can be one of the follows: 548, 1502, 2084, 4504, 8176,
603 * 11439, 17832. Refer to TMS380 Second Generation Token Ring User's Guide
604 * Page 2-27.
605 */
606#define HEADER_SIZE		(1 + 1 + 6 + 6)
607#define SRC_SIZE		18
608#define MIN_DATA_SIZE		516
609#define DEFAULT_DATA_SIZE	4472
610#define MAX_DATA_SIZE		17800
611
612#define DEFAULT_PACKET_SIZE (HEADER_SIZE + SRC_SIZE + DEFAULT_DATA_SIZE)
613#define MIN_PACKET_SIZE     (HEADER_SIZE + SRC_SIZE + MIN_DATA_SIZE)
614#define MAX_PACKET_SIZE     (HEADER_SIZE + SRC_SIZE + MAX_DATA_SIZE)
615
616/*
617 * Macros to deal with the frame status field.
618 */
619#define AC_NOT_RECOGNIZED	0x00
620#define GROUP_BIT		0x80
621#define GET_TRANSMIT_STATUS_HIGH_BYTE(Ts) ((unsigned char)((Ts) >> 8))
622#define GET_FRAME_STATUS_HIGH_AC(Fs)	  ((unsigned char)(((Fs) & 0xC0) >> 6))
623#define GET_FRAME_STATUS_LOW_AC(Fs)       ((unsigned char)(((Fs) & 0x0C) >> 2))
624#define DIRECTED_FRAME(Context)           (!((Context)->MData[2] & GROUP_BIT))
625
626
627/*--------------------- Send Functions ---------------------------------*/
628/* define TX_CSTAT _REQUEST (R) and _COMPLETE (C) values (high-low) */
629
630#define TX_VALID		0x0080	/* R: set via TRANSMIT.VALID interrupt.
631					 * C: always reset to zero!
632					 */
633#define TX_FRAME_COMPLETE	0x0040	/* R: must be reset to zero.
634					 * C: set to one.
635					 */
636#define TX_START_FRAME		0x0020  /* R: start of a frame: 1
637					 * C: unchanged.
638					 */
639#define TX_END_FRAME		0x0010  /* R: end of a frame: 1
640					 * C: unchanged.
641					 */
642#define TX_FRAME_IRQ		0x0008  /* R: request interrupt generation
643					 * after transmission.
644					 * C: unchanged.
645					 */
646#define TX_ERROR		0x0004  /* R: reserved.
647					 * C: set to one if Error occurred.
648					 */
649#define TX_INTERFRAME_WAIT	0x0004
650#define TX_PASS_CRC		0x0002  /* R: set if CRC value is already
651					 * calculated. (valid only in
652					 * FRAME_START TPL)
653					 * C: unchanged.
654					 */
655#define TX_PASS_SRC_ADDR	0x0001  /* R: adapter uses explicit frame
656					 * source address and does not overwrite
657					 * with the adapter node address.
658					 * (valid only in FRAME_START TPL)
659					 *
660					 * C: unchanged.
661					 */
662#define TX_STRIP_FS		0xFF00  /* R: reserved.
663					 * C: if no Transmission Error,
664					 * field contains copy of FS byte after
665					 * stripping of frame.
666					 */
667
668/*
669 * Structure of Transmit Parameter Lists (TPLs) (only one frame every TPL,
670 * but possibly multiple TPLs for one frame) the length of the TPLs has to be
671 * initialized in the OPL. (OPEN parameter list)
672 */
673#define TPL_NUM		3	/* Number of Transmit Parameter Lists.
674				 * !! MUST BE >= 3 !!
675				 */
676
677#pragma pack(1)
678typedef struct s_TPL TPL;
679
680struct s_TPL {	/* Transmit Parameter List (align on even word boundaries) */
681	u_int32_t NextTPLAddr;		/* Pointer to next TPL in chain; if
682					 * pointer is odd: this is the last
683					 * TPL. Pointing to itself can cause
684					 * problems!
685					 */
686	volatile u_int16_t Status;	/* Initialized by the adapter:
687					 * CSTAT_REQUEST important: update least
688					 * significant bit first! Set by the
689					 * adapter: CSTAT_COMPLETE status.
690					 */
691	u_int16_t FrameSize;		/* Number of bytes to be transmitted
692					 * as a frame including AC/FC,
693					 * Destination, Source, Routing field
694					 * not including CRC, FS, End Delimiter
695					 * (valid only if START_FRAME bit in
696					 * CSTAT nonzero) must not be zero in
697					 * any list; maximum value: (BUFFER_SIZE
698					 * - 8) * TX_BUF_MAX sum of DataCount
699					 * values in FragmentList must equal
700					 * Frame_Size value in START_FRAME TPL!
701					 * frame data fragment list.
702					 */
703
704	/* TPL/RPL size in OPEN parameter list depending on maximal
705	 * numbers of fragments used in one parameter list.
706	 */
707	Fragment FragList[TX_FRAG_NUM];	/* Maximum: nine frame fragments in one
708					 * TPL actual version of firmware: 9
709					 * fragments possible.
710					 */
711#pragma pack()
712
713	/* Special proprietary data and precalculations */
714
715	TPL *NextTPLPtr;		/* Pointer to next TPL in chain. */
716	unsigned char *MData;
717	struct sk_buff *Skb;
718	unsigned char TPLIndex;
719	volatile unsigned char BusyFlag;/* Flag: TPL busy? */
720	dma_addr_t DMABuff;		/* DMA IO bus address from pci_map */
721};
722
723/* ---------------------Receive Functions-------------------------------*
724 * define RECEIVE_CSTAT_REQUEST (R) and RECEIVE_CSTAT_COMPLETE (C) values.
725 * (high-low)
726 */
727#define RX_VALID		0x0080	/* R: set; tell adapter with
728					 * RECEIVE.VALID interrupt.
729					 * C: reset to zero.
730					 */
731#define RX_FRAME_COMPLETE	0x0040  /* R: must be reset to zero,
732					 * C: set to one.
733					 */
734#define RX_START_FRAME		0x0020  /* R: must be reset to zero.
735					 * C: set to one on the list.
736					 */
737#define RX_END_FRAME		0x0010  /* R: must be reset to zero.
738					 * C: set to one on the list
739					 * that ends the frame.
740					 */
741#define RX_FRAME_IRQ		0x0008  /* R: request interrupt generation
742					 * after receive.
743					 * C: unchanged.
744					 */
745#define RX_INTERFRAME_WAIT	0x0004  /* R: after receiving a frame:
746					 * interrupt and wait for a
747					 * RECEIVE.CONTINUE.
748					 * C: unchanged.
749					 */
750#define RX_PASS_CRC		0x0002  /* R: if set, the adapter includes
751					 * the CRC in data passed. (last four
752					 * bytes; valid only if FRAME_START is
753					 * set)
754					 * C: set, if CRC is included in
755					 * received data.
756					 */
757#define RX_PASS_SRC_ADDR	0x0001  /* R: adapter uses explicit frame
758					 * source address and does not
759					 * overwrite with the adapter node
760					 * address. (valid only if FRAME_START
761					 * is set)
762					 * C: unchanged.
763					 */
764#define RX_RECEIVE_FS		0xFC00  /* R: reserved; must be reset to zero.
765					 * C: on lists with START_FRAME, field
766					 * contains frame status field from
767					 * received frame; otherwise cleared.
768					 */
769#define RX_ADDR_MATCH		0x0300  /* R: reserved; must be reset to zero.
770					 * C: address match code mask.
771					 */
772#define RX_STATUS_MASK		0x00FF  /* Mask for receive status bits. */
773
774#define RX_INTERN_ADDR_MATCH    0x0100  /* C: internally address match. */
775#define RX_EXTERN_ADDR_MATCH    0x0200  /* C: externally matched via
776					 * XMATCH/XFAIL interface.
777					 */
778#define RX_INTEXT_ADDR_MATCH    0x0300  /* C: internally and externally
779					 * matched.
780					 */
781#define RX_READY (RX_VALID | RX_FRAME_IRQ) /* Ready for receive. */
782
783/* Constants for Command Status Interrupt.
784 * COMMAND_REJECT status field bit functions (SSB.Parm[0])
785 */
786#define ILLEGAL_COMMAND		0x0080	/* Set if an unknown command
787					 * is issued to the adapter
788					 */
789#define ADDRESS_ERROR		0x0040  /* Set if any address field in
790					 * the SCB is odd. (not word aligned)
791					 */
792#define ADAPTER_OPEN		0x0020  /* Command issued illegal with
793					 * open adapter.
794					 */
795#define ADAPTER_CLOSE		0x0010  /* Command issued illegal with
796					 * closed adapter.
797					 */
798#define SAME_COMMAND		0x0008  /* Command issued with same command
799					 * already executing.
800					 */
801
802/* OPEN_COMPLETION values (SSB.Parm[0], MSB) */
803#define NODE_ADDR_ERROR		0x0040  /* Wrong address or BIA read
804					 * zero address.
805					 */
806#define LIST_SIZE_ERROR		0x0020  /* If List_Size value not in 0,
807					 * 14, 20, 26.
808					 */
809#define BUF_SIZE_ERROR		0x0010  /* Not enough available memory for
810					 * two buffers.
811					 */
812#define TX_BUF_COUNT_ERROR	0x0004  /* Remaining receive buffers less than
813					 * two.
814					 */
815#define OPEN_ERROR		0x0002	/* Error during ring insertion; more
816					 * information in bits 8-15.
817					 */
818
819/* Standard return codes */
820#define GOOD_COMPLETION		0x0080  /* =OPEN_SUCCESSFULL */
821#define INVALID_OPEN_OPTION	0x0001  /* OPEN options are not supported by
822					 * the adapter.
823					 */
824
825/* OPEN phases; details of OPEN_ERROR (SSB.Parm[0], LSB)            */
826#define OPEN_PHASES_MASK            0xF000  /* Check only the bits 8-11. */
827#define LOBE_MEDIA_TEST             0x1000
828#define PHYSICAL_INSERTION          0x2000
829#define ADDRESS_VERIFICATION        0x3000
830#define PARTICIPATION_IN_RING_POLL  0x4000
831#define REQUEST_INITIALISATION      0x5000
832#define FULLDUPLEX_CHECK            0x6000
833
834/* OPEN error codes; details of OPEN_ERROR (SSB.Parm[0], LSB) */
835#define OPEN_ERROR_CODES_MASK	0x0F00  /* Check only the bits 12-15. */
836#define OPEN_FUNCTION_FAILURE   0x0100  /* Unable to transmit to itself or
837					 * frames received before insertion.
838					 */
839#define OPEN_SIGNAL_LOSS	0x0200	/* Signal loss condition detected at
840					 * receiver.
841					 */
842#define OPEN_TIMEOUT		0x0500	/* Insertion timer expired before
843					 * logical insertion.
844					 */
845#define OPEN_RING_FAILURE	0x0600	/* Unable to receive own ring purge
846					 * MAC frames.
847					 */
848#define OPEN_RING_BEACONING	0x0700	/* Beacon MAC frame received after
849					 * ring insertion.
850					 */
851#define OPEN_DUPLICATE_NODEADDR	0x0800  /* Other station in ring found
852					 * with the same address.
853					 */
854#define OPEN_REQUEST_INIT	0x0900	/* RPS present but does not respond. */
855#define OPEN_REMOVE_RECEIVED    0x0A00  /* Adapter received a remove adapter
856					 * MAC frame.
857					 */
858#define OPEN_FULLDUPLEX_SET	0x0D00	/* Got this with full duplex on when
859					 * trying to connect to a normal ring.
860					 */
861
862/* SET_BRIDGE_PARMS return codes: */
863#define BRIDGE_INVALID_MAX_LEN  0x4000  /* MAX_ROUTING_FIELD_LENGTH odd,
864					 * less than 6 or > 30.
865					 */
866#define BRIDGE_INVALID_SRC_RING 0x2000  /* SOURCE_RING number zero, too large
867					 * or = TARGET_RING.
868					 */
869#define BRIDGE_INVALID_TRG_RING 0x1000  /* TARGET_RING number zero, too large
870					 * or = SOURCE_RING.
871					 */
872#define BRIDGE_INVALID_BRDGE_NO 0x0800  /* BRIDGE_NUMBER too large. */
873#define BRIDGE_INVALID_OPTIONS  0x0400  /* Invalid bridge options. */
874#define BRIDGE_DIAGS_FAILED     0x0200  /* Diagnostics of TMS380SRA failed. */
875#define BRIDGE_NO_SRA           0x0100  /* The TMS380SRA does not exist in HW
876					 * configuration.
877					 */
878
879/*
880 * Bring Up Diagnostics error codes.
881 */
882#define BUD_INITIAL_ERROR       0x0
883#define BUD_CHECKSUM_ERROR      0x1
884#define BUD_ADAPTER_RAM_ERROR   0x2
885#define BUD_INSTRUCTION_ERROR   0x3
886#define BUD_CONTEXT_ERROR       0x4
887#define BUD_PROTOCOL_ERROR      0x5
888#define BUD_INTERFACE_ERROR	0x6
889
890/* BUD constants */
891#define BUD_MAX_RETRIES         3
892#define BUD_MAX_LOOPCNT         6
893#define BUD_TIMEOUT             3000
894
895/* Initialization constants */
896#define INIT_MAX_RETRIES        3	/* Maximum three retries. */
897#define INIT_MAX_LOOPCNT        22      /* Maximum loop counts. */
898
899/* RING STATUS field values (high/low) */
900#define SIGNAL_LOSS             0x0080  /* Loss of signal on the ring
901					 * detected.
902					 */
903#define HARD_ERROR              0x0040  /* Transmitting or receiving beacon
904					 * frames.
905					 */
906#define SOFT_ERROR              0x0020  /* Report error MAC frame
907					 * transmitted.
908					 */
909#define TRANSMIT_BEACON         0x0010  /* Transmitting beacon frames on the
910					 * ring.
911					 */
912#define LOBE_WIRE_FAULT         0x0008  /* Open or short circuit in the
913					 * cable to concentrator; adapter
914					 * closed.
915					 */
916#define AUTO_REMOVAL_ERROR      0x0004  /* Lobe wrap test failed, deinserted;
917					 * adapter closed.
918					 */
919#define REMOVE_RECEIVED         0x0001  /* Received a remove ring station MAC
920					 * MAC frame request; adapter closed.
921					 */
922#define COUNTER_OVERFLOW        0x8000  /* Overflow of one of the adapters
923					 * error counters; READ.ERROR.LOG.
924					 */
925#define SINGLE_STATION          0x4000  /* Adapter is the only station on the
926					 * ring.
927					 */
928#define RING_RECOVERY           0x2000  /* Claim token MAC frames on the ring;
929					 * reset after ring purge frame.
930					 */
931
932#define ADAPTER_CLOSED (LOBE_WIRE_FAULT | AUTO_REMOVAL_ERROR |\
933                        REMOVE_RECEIVED)
934
935/* Adapter_check_block.Status field bit assignments: */
936#define DIO_PARITY              0x8000  /* Adapter detects bad parity
937					 * through direct I/O access.
938					 */
939#define DMA_READ_ABORT          0x4000  /* Aborting DMA read operation
940					 * from system Parm[0]: 0=timeout,
941					 * 1=parity error, 2=bus error;
942					 * Parm[1]: 32 bit pointer to host
943					 * system address at failure.
944					 */
945#define DMA_WRITE_ABORT         0x2000  /* Aborting DMA write operation
946					 * to system. (parameters analogous to
947					 * DMA_READ_ABORT)
948					 */
949#define ILLEGAL_OP_CODE         0x1000  /* Illegal operation code in the
950					 * the adapters firmware Parm[0]-2:
951					 * communications processor registers
952					 * R13-R15.
953					 */
954#define PARITY_ERRORS           0x0800  /* Adapter detects internal bus
955					 * parity error.
956					 */
957#define RAM_DATA_ERROR          0x0080  /* Valid only during RAM testing;
958					 * RAM data error Parm[0-1]: 32 bit
959					 * pointer to RAM location.
960					 */
961#define RAM_PARITY_ERROR        0x0040  /* Valid only during RAM testing;
962					 * RAM parity error Parm[0-1]: 32 bit
963					 * pointer to RAM location.
964					 */
965#define RING_UNDERRUN           0x0020  /* Internal DMA underrun when
966					 * transmitting onto ring.
967					 */
968#define INVALID_IRQ             0x0008  /* Unrecognized interrupt generated
969					 * internal to adapter Parm[0-2]:
970					 * adapter register R13-R15.
971					 */
972#define INVALID_ERROR_IRQ       0x0004  /* Unrecognized error interrupt
973					 * generated Parm[0-2]: adapter register
974					 * R13-R15.
975					 */
976#define INVALID_XOP             0x0002  /* Unrecognized XOP request in
977					 * communication processor Parm[0-2]:
978					 * adapter register R13-R15.
979					 */
980#define CHECKADDR               0x05E0  /* Adapter check status information
981					 * address offset.
982					 */
983#define ROM_PAGE_0              0x0000  /* Adapter ROM page 0. */
984
985/*
986 * RECEIVE.STATUS interrupt result SSB values: (high-low)
987 * (RECEIVE_COMPLETE field bit definitions in SSB.Parm[0])
988 */
989#define RX_COMPLETE             0x0080  /* SSB.Parm[0]; SSB.Parm[1]: 32
990					 * bit pointer to last RPL.
991					 */
992#define RX_SUSPENDED            0x0040  /* SSB.Parm[0]; SSB.Parm[1]: 32
993					 * bit pointer to RPL with odd
994					 * forward pointer.
995					 */
996
997/* Valid receive CSTAT: */
998#define RX_FRAME_CONTROL_BITS (RX_VALID | RX_START_FRAME | RX_END_FRAME | \
999			       RX_FRAME_COMPLETE)
1000#define VALID_SINGLE_BUFFER_FRAME (RX_START_FRAME | RX_END_FRAME | \
1001				   RX_FRAME_COMPLETE)
1002
1003typedef enum SKB_STAT SKB_STAT;
1004enum SKB_STAT {
1005	SKB_UNAVAILABLE,
1006	SKB_DMA_DIRECT,
1007	SKB_DATA_COPY
1008};
1009
1010/* Receive Parameter List (RPL) The length of the RPLs has to be initialized
1011 * in the OPL. (OPEN parameter list)
1012 */
1013#define RPL_NUM		3
1014
1015#define RX_FRAG_NUM     1	/* Maximal number of used fragments in one RPL.
1016				 * (up to firmware v2.24: 3, now: up to 9)
1017				 */
1018
1019#pragma pack(1)
1020typedef struct s_RPL RPL;
1021struct s_RPL {	/* Receive Parameter List */
1022	u_int32_t NextRPLAddr;		/* Pointer to next RPL in chain
1023					 * (normalized = physical 32 bit
1024					 * address) if pointer is odd: this
1025					 * is last RPL. Pointing to itself can
1026					 * cause problems!
1027					 */
1028	volatile u_int16_t Status;	/* Set by creation of Receive Parameter
1029					 * List RECEIVE_CSTAT_COMPLETE set by
1030					 * adapter in lists that start or end
1031					 * a frame.
1032					 */
1033	volatile u_int16_t FrameSize;	 /* Number of bytes received as a
1034					 * frame including AC/FC, Destination,
1035					 * Source, Routing field not including
1036					 * CRC, FS (Frame Status), End Delimiter
1037					 * (valid only if START_FRAME bit in
1038					 * CSTAT nonzero) must not be zero in
1039					 * any list; maximum value: (BUFFER_SIZE
1040					 * - 8) * TX_BUF_MAX sum of DataCount
1041					 * values in FragmentList must equal
1042					 * Frame_Size value in START_FRAME TPL!
1043					 * frame data fragment list
1044					 */
1045
1046	/* TPL/RPL size in OPEN parameter list depending on maximal numbers
1047	 * of fragments used in one parameter list.
1048	 */
1049	Fragment FragList[RX_FRAG_NUM];	/* Maximum: nine frame fragments in
1050					 * one TPL. Actual version of firmware:
1051					 * 9 fragments possible.
1052					 */
1053#pragma pack()
1054
1055	/* Special proprietary data and precalculations. */
1056	RPL *NextRPLPtr;	/* Logical pointer to next RPL in chain. */
1057	unsigned char *MData;
1058	struct sk_buff *Skb;
1059	SKB_STAT SkbStat;
1060	int RPLIndex;
1061	dma_addr_t DMABuff;		/* DMA IO bus address from pci_map */
1062};
1063
1064/* Information that need to be kept for each board. */
1065typedef struct net_local {
1066#pragma pack(1)
1067	IPB ipb;	/* Initialization Parameter Block. */
1068	SCB scb;	/* System Command Block: system to adapter
1069			 * communication.
1070			 */
1071	SSB ssb;	/* System Status Block: adapter to system
1072			 * communication.
1073			 */
1074	OPB ocpl;	/* Open Options Parameter Block. */
1075
1076	ERRORTAB errorlogtable;	/* Adapter statistic error counters.
1077				 * (read from adapter memory)
1078				 */
1079	unsigned char ProductID[PROD_ID_SIZE + 1]; /* Product ID */
1080#pragma pack()
1081
1082	TPL Tpl[TPL_NUM];
1083	TPL *TplFree;
1084	TPL *TplBusy;
1085	unsigned char LocalTxBuffers[TPL_NUM][DEFAULT_PACKET_SIZE];
1086
1087	RPL Rpl[RPL_NUM];
1088	RPL *RplHead;
1089	RPL *RplTail;
1090	unsigned char LocalRxBuffers[RPL_NUM][DEFAULT_PACKET_SIZE];
1091
1092	struct pci_dev *pdev;
1093	int DataRate;
1094	unsigned char ScbInUse;
1095	unsigned short CMDqueue;
1096
1097	unsigned long AdapterOpenFlag:1;
1098	unsigned long AdapterVirtOpenFlag:1;
1099	unsigned long OpenCommandIssued:1;
1100	unsigned long TransmitCommandActive:1;
1101	unsigned long TransmitHaltScheduled:1;
1102	unsigned long HaltInProgress:1;
1103	unsigned long LobeWireFaultLogged:1;
1104	unsigned long ReOpenInProgress:1;
1105	unsigned long Sleeping:1;
1106
1107	unsigned long LastOpenStatus;
1108	unsigned short CurrentRingStatus;
1109	unsigned long MaxPacketSize;
1110
1111	unsigned long StartTime;
1112	unsigned long LastSendTime;
1113
1114	struct sk_buff_head SendSkbQueue;
1115	unsigned short QueueSkb;
1116
1117	struct tr_statistics MacStat;	/* MAC statistics structure */
1118
1119	unsigned long dmalimit; /* the max DMA address (ie, ISA) */
1120	dma_addr_t    dmabuffer; /* the DMA bus address corresponding to
1121				    priv. Might be different from virt_to_bus()
1122				    for architectures with IO MMU (Alpha) */
1123
1124	struct timer_list timer;
1125
1126	wait_queue_head_t  wait_for_tok_int;
1127
1128	INTPTRS intptrs;	/* Internal adapter pointer. Must be read
1129				 * before OPEN command.
1130				 */
1131	unsigned short (*setnselout)(struct net_device *);
1132	unsigned short (*sifreadb)(struct net_device *, unsigned short);
1133	void (*sifwriteb)(struct net_device *, unsigned short, unsigned short);
1134	unsigned short (*sifreadw)(struct net_device *, unsigned short);
1135	void (*sifwritew)(struct net_device *, unsigned short, unsigned short);
1136
1137	void *tmspriv;
1138} NET_LOCAL;
1139
1140#endif	/* __KERNEL__ */
1141#endif	/* __LINUX_TMS380TR_H */
1142