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1 #ifndef _RRUNNER_H_
2 #define _RRUNNER_H_
3 
4 #include <linux/interrupt.h>
5 
6 #if ((BITS_PER_LONG != 32) && (BITS_PER_LONG != 64))
7 #error "BITS_PER_LONG not defined or not valid"
8 #endif
9 
10 
11 struct rr_regs {
12 
13 	u32	pad0[16];
14 
15 	u32	HostCtrl;
16 	u32	LocalCtrl;
17 	u32	Pc;
18 	u32	BrkPt;
19 
20 /* Timer increments every 0.97 micro-seconds (unsigned int) */
21 	u32	Timer_Hi;
22 	u32	Timer;
23 	u32	TimerRef;
24 	u32	PciState;
25 
26 	u32	Event;
27 	u32	MbEvent;
28 
29 	u32	WinBase;
30 	u32	WinData;
31 	u32	RX_state;
32 	u32	TX_state;
33 
34 	u32	Overhead;
35 	u32	ExtIo;
36 
37 	u32	DmaWriteHostHi;
38 	u32	DmaWriteHostLo;
39 
40 	u32	pad1[2];
41 
42 	u32	DmaReadHostHi;
43 	u32	DmaReadHostLo;
44 
45 	u32	pad2;
46 
47 	u32	DmaReadLen;
48 	u32	DmaWriteState;
49 
50 	u32	DmaWriteLcl;
51 	u32	DmaWriteIPchecksum;
52 	u32	DmaWriteLen;
53 	u32	DmaReadState;
54 	u32	DmaReadLcl;
55 	u32	DmaReadIPchecksum;
56 	u32	pad3;
57 
58 	u32	RxBase;
59 	u32	RxPrd;
60 	u32	RxCon;
61 
62 	u32	pad4;
63 
64 	u32	TxBase;
65 	u32	TxPrd;
66 	u32	TxCon;
67 
68 	u32	pad5;
69 
70 	u32	RxIndPro;
71 	u32	RxIndCon;
72 	u32	RxIndRef;
73 
74 	u32	pad6;
75 
76 	u32	TxIndPro;
77 	u32	TxIndCon;
78 	u32	TxIndRef;
79 
80 	u32	pad7[17];
81 
82 	u32	DrCmndPro;
83 	u32	DrCmndCon;
84 	u32	DrCmndRef;
85 
86 	u32	pad8;
87 
88 	u32	DwCmndPro;
89 	u32	DwCmndCon;
90 	u32	DwCmndRef;
91 
92 	u32	AssistState;
93 
94 	u32	DrDataPro;
95 	u32	DrDataCon;
96 	u32	DrDataRef;
97 
98 	u32	pad9;
99 
100 	u32	DwDataPro;
101 	u32	DwDataCon;
102 	u32	DwDataRef;
103 
104 	u32	pad10[33];
105 
106 	u32	EvtCon;
107 
108 	u32	pad11[5];
109 
110 	u32	TxPi;
111 	u32	IpRxPi;
112 
113 	u32	pad11a[8];
114 
115 	u32	CmdRing[16];
116 
117 /* The ULA is in two registers the high order two bytes of the first
118  * word contain the RunCode features.
119  * ula0		res	res	byte0	byte1
120  * ula1		byte2	byte3	byte4	byte5
121  */
122 	u32	Ula0;
123 	u32	Ula1;
124 
125 	u32	RxRingHi;
126 	u32	RxRingLo;
127 
128 	u32	InfoPtrHi;
129 	u32	InfoPtrLo;
130 
131 	u32	Mode;
132 
133 	u32	ConRetry;
134 	u32	ConRetryTmr;
135 
136 	u32	ConTmout;
137 	u32	CtatTmr;
138 
139 	u32	MaxRxRng;
140 
141 	u32	IntrTmr;
142 	u32	TxDataMvTimeout;
143 	u32	RxDataMvTimeout;
144 
145 	u32	EvtPrd;
146 	u32	TraceIdx;
147 
148 	u32	Fail1;
149 	u32	Fail2;
150 
151 	u32	DrvPrm;
152 
153 	u32	FilterLA;
154 
155 	u32	FwRev;
156 	u32	FwRes1;
157 	u32	FwRes2;
158 	u32	FwRes3;
159 
160 	u32	WriteDmaThresh;
161 	u32	ReadDmaThresh;
162 
163 	u32	pad12[325];
164 	u32	Window[512];
165 };
166 
167 /*
168  * Host control register bits.
169  */
170 
171 #define RR_INT		0x01
172 #define RR_CLEAR_INT	0x02
173 #define NO_SWAP		0x04000004
174 #define NO_SWAP1	0x00000004
175 #define PCI_RESET_NIC	0x08
176 #define HALT_NIC	0x10
177 #define SSTEP_NIC	0x20
178 #define MEM_READ_MULTI	0x40
179 #define NIC_HALTED	0x100
180 #define HALT_INST	0x200
181 #define PARITY_ERR	0x400
182 #define INVALID_INST_B	0x800
183 #define RR_REV_2	0x20000000
184 #define RR_REV_MASK	0xf0000000
185 
186 /*
187  * Local control register bits.
188  */
189 
190 #define INTA_STATE		0x01
191 #define CLEAR_INTA		0x02
192 #define FAST_EEPROM_ACCESS	0x08
193 #define ENABLE_EXTRA_SRAM	0x100
194 #define ENABLE_EXTRA_DESC	0x200
195 #define ENABLE_PARITY		0x400
196 #define FORCE_DMA_PARITY_ERROR	0x800
197 #define ENABLE_EEPROM_WRITE	0x1000
198 #define ENABLE_DATA_CACHE	0x2000
199 #define SRAM_LO_PARITY_ERR	0x4000
200 #define SRAM_HI_PARITY_ERR	0x8000
201 
202 /*
203  * PCI state bits.
204  */
205 
206 #define FORCE_PCI_RESET		0x01
207 #define PROVIDE_LENGTH		0x02
208 #define MASK_DMA_READ_MAX	0x1C
209 #define RBURST_DISABLE		0x00
210 #define RBURST_4		0x04
211 #define RBURST_16		0x08
212 #define RBURST_32		0x0C
213 #define RBURST_64		0x10
214 #define RBURST_128		0x14
215 #define RBURST_256		0x18
216 #define RBURST_1024		0x1C
217 #define MASK_DMA_WRITE_MAX	0xE0
218 #define WBURST_DISABLE		0x00
219 #define WBURST_4		0x20
220 #define WBURST_16		0x40
221 #define WBURST_32		0x60
222 #define WBURST_64		0x80
223 #define WBURST_128		0xa0
224 #define WBURST_256		0xc0
225 #define WBURST_1024		0xe0
226 #define MASK_MIN_DMA		0xFF00
227 #define FIFO_RETRY_ENABLE	0x10000
228 
229 /*
230  * Event register
231  */
232 
233 #define DMA_WRITE_DONE		0x10000
234 #define DMA_READ_DONE		0x20000
235 #define DMA_WRITE_ERR		0x40000
236 #define DMA_READ_ERR		0x80000
237 
238 /*
239  * Receive state
240  *
241  * RoadRunner HIPPI Receive State Register controls and monitors the
242  * HIPPI receive interface in the NIC. Look at err bits when a HIPPI
243  * receive Error Event occurs.
244  */
245 
246 #define ENABLE_NEW_CON		0x01
247 #define RESET_RECV		0x02
248 #define RECV_ALL		0x00
249 #define RECV_1K			0x20
250 #define RECV_2K			0x40
251 #define RECV_4K			0x60
252 #define RECV_8K			0x80
253 #define RECV_16K		0xa0
254 #define RECV_32K		0xc0
255 #define RECV_64K		0xe0
256 
257 /*
258  * Transmit status.
259  */
260 
261 #define ENA_XMIT		0x01
262 #define PERM_CON		0x02
263 
264 /*
265  * DMA write state
266  */
267 
268 #define RESET_DMA		0x01
269 #define NO_SWAP_DMA		0x02
270 #define DMA_ACTIVE		0x04
271 #define THRESH_MASK		0x1F
272 #define DMA_ERROR_MASK		0xff000000
273 
274 /*
275  * Gooddies stored in the ULA registers.
276  */
277 
278 #define TRACE_ON_WHAT_BIT	0x00020000    /* Traces on */
279 #define ONEM_BUF_WHAT_BIT	0x00040000    /* 1Meg vs 256K */
280 #define CHAR_API_WHAT_BIT	0x00080000    /* Char API vs network only */
281 #define CMD_EVT_WHAT_BIT	0x00200000    /* Command event */
282 #define LONG_TX_WHAT_BIT	0x00400000
283 #define LONG_RX_WHAT_BIT	0x00800000
284 #define WHAT_BIT_MASK		0xFFFD0000    /* Feature bit mask */
285 
286 /*
287  * Mode status
288  */
289 
290 #define EVENT_OVFL		0x80000000
291 #define FATAL_ERR		0x40000000
292 #define LOOP_BACK		0x01
293 #define MODE_PH			0x02
294 #define MODE_FP			0x00
295 #define PTR64BIT		0x04
296 #define PTR32BIT		0x00
297 #define PTR_WD_SWAP		0x08
298 #define PTR_WD_NOSWAP		0x00
299 #define POST_WARN_EVENT		0x10
300 #define ERR_TERM		0x20
301 #define DIRECT_CONN		0x40
302 #define NO_NIC_WATCHDOG		0x80
303 #define SWAP_DATA		0x100
304 #define SWAP_CONTROL		0x200
305 #define NIC_HALT_ON_ERR		0x400
306 #define NIC_NO_RESTART		0x800
307 #define HALF_DUP_TX		0x1000
308 #define HALF_DUP_RX		0x2000
309 
310 
311 /*
312  * Error codes
313  */
314 
315 /* Host Error Codes - values of fail1 */
316 #define ERR_UNKNOWN_MBOX	0x1001
317 #define ERR_UNKNOWN_CMD		0x1002
318 #define ERR_MAX_RING		0x1003
319 #define ERR_RING_CLOSED		0x1004
320 #define ERR_RING_OPEN		0x1005
321 /* Firmware internal errors */
322 #define ERR_EVENT_RING_FULL	0x01
323 #define ERR_DW_PEND_CMND_FULL	0x02
324 #define ERR_DR_PEND_CMND_FULL	0x03
325 #define ERR_DW_PEND_DATA_FULL	0x04
326 #define ERR_DR_PEND_DATA_FULL	0x05
327 #define ERR_ILLEGAL_JUMP	0x06
328 #define ERR_UNIMPLEMENTED	0x07
329 #define ERR_TX_INFO_FULL	0x08
330 #define ERR_RX_INFO_FULL	0x09
331 #define ERR_ILLEGAL_MODE	0x0A
332 #define ERR_MAIN_TIMEOUT	0x0B
333 #define ERR_EVENT_BITS		0x0C
334 #define ERR_UNPEND_FULL		0x0D
335 #define ERR_TIMER_QUEUE_FULL	0x0E
336 #define ERR_TIMER_QUEUE_EMPTY	0x0F
337 #define ERR_TIMER_NO_FREE	0x10
338 #define ERR_INTR_START		0x11
339 #define ERR_BAD_STARTUP		0x12
340 #define ERR_NO_PKT_END		0x13
341 #define ERR_HALTED_ON_ERR	0x14
342 /* Hardware NIC Errors */
343 #define ERR_WRITE_DMA		0x0101
344 #define ERR_READ_DMA		0x0102
345 #define ERR_EXT_SERIAL		0x0103
346 #define ERR_TX_INT_PARITY	0x0104
347 
348 
349 /*
350  * Event definitions
351  */
352 
353 #define EVT_RING_ENTRIES	64
354 #define EVT_RING_SIZE		(EVT_RING_ENTRIES * sizeof(struct event))
355 
356 struct event {
357 #ifdef __LITTLE_ENDIAN
358 	u16     index;
359 	u8      ring;
360 	u8      code;
361 #else
362 	u8      code;
363 	u8      ring;
364 	u16     index;
365 #endif
366 	u32     timestamp;
367 };
368 
369 /*
370  * General Events
371  */
372 
373 #define E_NIC_UP	0x01
374 #define E_WATCHDOG	0x02
375 
376 #define E_STAT_UPD	0x04
377 #define E_INVAL_CMD	0x05
378 #define E_SET_CMD_CONS	0x06
379 #define E_LINK_ON	0x07
380 #define E_LINK_OFF	0x08
381 #define E_INTERN_ERR	0x09
382 #define E_HOST_ERR	0x0A
383 #define E_STATS_UPDATE	0x0B
384 #define E_REJECTING	0x0C
385 
386 /*
387  * Send  Events
388  */
389 #define E_CON_REJ	0x13
390 #define E_CON_TMOUT	0x14
391 #define E_CON_NC_TMOUT	0x15	/* I  , Connection No Campon Timeout */
392 #define E_DISC_ERR	0x16
393 #define E_INT_PRTY	0x17
394 #define E_TX_IDLE	0x18
395 #define E_TX_LINK_DROP	0x19
396 #define E_TX_INV_RNG	0x1A
397 #define E_TX_INV_BUF	0x1B
398 #define E_TX_INV_DSC	0x1C
399 
400 /*
401  * Destination Events
402  */
403 /*
404  * General Receive events
405  */
406 #define E_VAL_RNG	0x20
407 #define E_RX_RNG_ENER	0x21
408 #define E_INV_RNG	0x22
409 #define E_RX_RNG_SPC	0x23
410 #define E_RX_RNG_OUT	0x24
411 #define E_PKT_DISCARD	0x25
412 #define E_INFO_EVT	0x27
413 
414 /*
415  * Data corrupted events
416  */
417 #define E_RX_PAR_ERR	0x2B
418 #define E_RX_LLRC_ERR	0x2C
419 #define E_IP_CKSM_ERR	0x2D
420 #define E_DTA_CKSM_ERR	0x2E
421 #define E_SHT_BST	0x2F
422 
423 /*
424  * Data lost events
425  */
426 #define E_LST_LNK_ERR	0x30
427 #define E_FLG_SYN_ERR	0x31
428 #define E_FRM_ERR	0x32
429 #define E_RX_IDLE	0x33
430 #define E_PKT_LN_ERR	0x34
431 #define E_STATE_ERR	0x35
432 #define E_UNEXP_DATA	0x3C
433 
434 /*
435  * Fatal events
436  */
437 #define E_RX_INV_BUF	0x36
438 #define E_RX_INV_DSC	0x37
439 #define E_RNG_BLK	0x38
440 
441 /*
442  * Warning events
443  */
444 #define E_RX_TO		0x39
445 #define E_BFR_SPC	0x3A
446 #define E_INV_ULP	0x3B
447 
448 #define E_NOT_IMPLEMENTED 0x40
449 
450 
451 /*
452  * Commands
453  */
454 
455 #define CMD_RING_ENTRIES	16
456 
457 struct cmd {
458 #ifdef __LITTLE_ENDIAN
459 	u16     index;
460 	u8      ring;
461 	u8      code;
462 #else
463 	u8      code;
464 	u8      ring;
465 	u16     index;
466 #endif
467 };
468 
469 #define C_START_FW	0x01
470 #define C_UPD_STAT	0x02
471 #define C_WATCHDOG	0x05
472 #define C_DEL_RNG	0x09
473 #define C_NEW_RNG	0x0A
474 #define C_CONN		0x0D
475 
476 
477 /*
478  * Mode bits
479  */
480 
481 #define  PACKET_BAD		0x01 /* Packet had link-layer error */
482 #define  INTERRUPT		0x02
483 #define  TX_IP_CKSUM		0x04
484 #define  PACKET_END		0x08
485 #define  PACKET_START		0x10
486 #define  SAME_IFIELD		0x80
487 
488 
489 typedef struct {
490 #if (BITS_PER_LONG == 64)
491 	u64 addrlo;
492 #else
493 	u32 addrhi;
494 	u32 addrlo;
495 #endif
496 } rraddr;
497 
498 
set_rraddr(rraddr * ra,dma_addr_t addr)499 static inline void set_rraddr(rraddr *ra, dma_addr_t addr)
500 {
501 	unsigned long baddr = addr;
502 #if (BITS_PER_LONG == 64)
503 	ra->addrlo = baddr;
504 #else
505     /* Don't bother setting zero every time */
506 	ra->addrlo = baddr;
507 #endif
508 	mb();
509 }
510 
511 
set_rxaddr(struct rr_regs __iomem * regs,volatile dma_addr_t addr)512 static inline void set_rxaddr(struct rr_regs __iomem *regs, volatile dma_addr_t addr)
513 {
514 	unsigned long baddr = addr;
515 #if (BITS_PER_LONG == 64) && defined(__LITTLE_ENDIAN)
516 	writel(baddr & 0xffffffff, &regs->RxRingHi);
517 	writel(baddr >> 32, &regs->RxRingLo);
518 #elif (BITS_PER_LONG == 64)
519 	writel(baddr >> 32, &regs->RxRingHi);
520 	writel(baddr & 0xffffffff, &regs->RxRingLo);
521 #else
522 	writel(0, &regs->RxRingHi);
523 	writel(baddr, &regs->RxRingLo);
524 #endif
525 	mb();
526 }
527 
528 
set_infoaddr(struct rr_regs __iomem * regs,volatile dma_addr_t addr)529 static inline void set_infoaddr(struct rr_regs __iomem *regs, volatile dma_addr_t addr)
530 {
531 	unsigned long baddr = addr;
532 #if (BITS_PER_LONG == 64) && defined(__LITTLE_ENDIAN)
533 	writel(baddr & 0xffffffff, &regs->InfoPtrHi);
534 	writel(baddr >> 32, &regs->InfoPtrLo);
535 #elif (BITS_PER_LONG == 64)
536 	writel(baddr >> 32, &regs->InfoPtrHi);
537 	writel(baddr & 0xffffffff, &regs->InfoPtrLo);
538 #else
539 	writel(0, &regs->InfoPtrHi);
540 	writel(baddr, &regs->InfoPtrLo);
541 #endif
542 	mb();
543 }
544 
545 
546 /*
547  * TX ring
548  */
549 
550 #ifdef CONFIG_ROADRUNNER_LARGE_RINGS
551 #define TX_RING_ENTRIES	32
552 #else
553 #define TX_RING_ENTRIES	16
554 #endif
555 #define TX_TOTAL_SIZE	(TX_RING_ENTRIES * sizeof(struct tx_desc))
556 
557 struct tx_desc{
558 	rraddr	addr;
559 	u32	res;
560 #ifdef __LITTLE_ENDIAN
561 	u16	size;
562 	u8	pad;
563 	u8	mode;
564 #else
565 	u8	mode;
566 	u8	pad;
567 	u16	size;
568 #endif
569 };
570 
571 
572 #ifdef CONFIG_ROADRUNNER_LARGE_RINGS
573 #define RX_RING_ENTRIES	32
574 #else
575 #define RX_RING_ENTRIES 16
576 #endif
577 #define RX_TOTAL_SIZE	(RX_RING_ENTRIES * sizeof(struct rx_desc))
578 
579 struct rx_desc{
580 	rraddr	addr;
581 	u32	res;
582 #ifdef __LITTLE_ENDIAN
583 	u16	size;
584 	u8	pad;
585 	u8	mode;
586 #else
587 	u8	mode;
588 	u8	pad;
589 	u16	size;
590 #endif
591 };
592 
593 
594 /*
595  * ioctl's
596  */
597 
598 #define SIOCRRPFW	SIOCDEVPRIVATE		/* put firmware */
599 #define SIOCRRGFW	SIOCDEVPRIVATE+1	/* get firmware */
600 #define SIOCRRID	SIOCDEVPRIVATE+2	/* identify */
601 
602 
603 struct seg_hdr {
604 	u32	seg_start;
605 	u32	seg_len;
606 	u32	seg_eestart;
607 };
608 
609 
610 #define EEPROM_BASE 0x80000000
611 #define EEPROM_WORDS 8192
612 #define EEPROM_BYTES (EEPROM_WORDS * sizeof(u32))
613 
614 struct eeprom_boot {
615 	u32	key1;
616 	u32	key2;
617 	u32	sram_size;
618 	struct	seg_hdr loader;
619 	u32	init_chksum;
620 	u32	reserved1;
621 };
622 
623 struct eeprom_manf {
624 	u32	HeaderFmt;
625 	u32	Firmware;
626 	u32	BoardRevision;
627 	u32	RoadrunnerRev;
628 	char	OpticsPart[8];
629 	u32	OpticsRev;
630 	u32	pad1;
631 	char	SramPart[8];
632 	u32	SramRev;
633 	u32	pad2;
634 	char	EepromPart[8];
635 	u32	EepromRev;
636 	u32	EepromSize;
637 	char	PalPart[8];
638 	u32	PalRev;
639 	u32	pad3;
640 	char	PalCodeFile[12];
641 	u32	PalCodeRev;
642 	char	BoardULA[8];
643 	char	SerialNo[8];
644 	char	MfgDate[8];
645 	char	MfgTime[8];
646 	char	ModifyDate[8];
647 	u32	ModCount;
648 	u32	pad4[13];
649 };
650 
651 
652 struct eeprom_phase_info {
653 	char	phase1File[12];
654 	u32	phase1Rev;
655 	char	phase1Date[8];
656 	char	phase2File[12];
657 	u32	phase2Rev;
658 	char	phase2Date[8];
659 	u32	reserved7[4];
660 };
661 
662 struct eeprom_rncd_info {
663 	u32	FwStart;
664 	u32	FwRev;
665 	char	FwDate[8];
666 	u32	AddrRunCodeSegs;
667 	u32	FileNames;
668 	char	File[13][8];
669 };
670 
671 
672 /* Phase 1 region (starts are word offset 0x80) */
673 struct phase1_hdr{
674 	u32	jump;
675 	u32	noop;
676 	struct seg_hdr phase2Seg;
677 };
678 
679 struct eeprom {
680 	struct eeprom_boot	boot;
681 	u32			pad1[8];
682 	struct eeprom_manf	manf;
683 	struct eeprom_phase_info phase_info;
684 	struct eeprom_rncd_info	rncd_info;
685 	u32			pad2[15];
686 	u32			hdr_checksum;
687 	struct phase1_hdr	phase1;
688 };
689 
690 
691 struct rr_stats {
692 	u32	NicTimeStamp;
693 	u32	RngCreated;
694 	u32	RngDeleted;
695 	u32	IntrGen;
696 	u32	NEvtOvfl;
697 	u32	InvCmd;
698 	u32	DmaReadErrs;
699 	u32	DmaWriteErrs;
700 	u32	StatUpdtT;
701 	u32	StatUpdtC;
702 	u32	WatchDog;
703 	u32	Trace;
704 
705 	/* Serial HIPPI */
706 	u32	LnkRdyEst;
707 	u32	GLinkErr;
708 	u32	AltFlgErr;
709 	u32	OvhdBit8Sync;
710 	u32	RmtSerPrtyErr;
711 	u32	RmtParPrtyErr;
712 	u32	RmtLoopBk;
713 	u32	pad1;
714 
715 	/* HIPPI tx */
716 	u32	ConEst;
717 	u32	ConRejS;
718 	u32	ConRetry;
719 	u32	ConTmOut;
720 	u32	SndConDiscon;
721 	u32	SndParErr;
722 	u32	PktSnt;
723 	u32	pad2[2];
724 	u32	ShFBstSnt;
725 	u64	BytSent;
726 	u32	TxTimeout;
727 	u32	pad3[3];
728 
729 	/* HIPPI rx */
730 	u32	ConAcc;
731 	u32	ConRejdiPrty;
732 	u32	ConRejd64b;
733 	u32	ConRejdBuf;
734 	u32	RxConDiscon;
735 	u32	RxConNoData;
736 	u32	PktRx;
737 	u32	pad4[2];
738 	u32	ShFBstRx;
739 	u64	BytRx;
740 	u32	RxParErr;
741 	u32	RxLLRCerr;
742 	u32	RxBstSZerr;
743 	u32	RxStateErr;
744 	u32	RxRdyErr;
745 	u32	RxInvULP;
746 	u32	RxSpcBuf;
747 	u32	RxSpcDesc;
748 	u32	RxRngSpc;
749 	u32	RxRngFull;
750 	u32	RxPktLenErr;
751 	u32	RxCksmErr;
752 	u32	RxPktDrp;
753 	u32	RngLowSpc;
754 	u32	RngDataClose;
755 	u32	RxTimeout;
756 	u32	RxIdle;
757 };
758 
759 
760 /*
761  * This struct is shared with the NIC firmware.
762  */
763 struct ring_ctrl {
764 	rraddr	rngptr;
765 #ifdef __LITTLE_ENDIAN
766 	u16	entries;
767 	u8	pad;
768 	u8	entry_size;
769 	u16	pi;
770 	u16	mode;
771 #else
772 	u8	entry_size;
773 	u8	pad;
774 	u16	entries;
775 	u16	mode;
776 	u16	pi;
777 #endif
778 };
779 
780 struct rr_info {
781 	union {
782 		struct rr_stats stats;
783 		u32 stati[128];
784 	} s;
785 	struct ring_ctrl	evt_ctrl;
786 	struct ring_ctrl	cmd_ctrl;
787 	struct ring_ctrl	tx_ctrl;
788 	u8			pad[464];
789 	u8			trace[3072];
790 };
791 
792 /*
793  * The linux structure for the RoadRunner.
794  *
795  * RX/TX descriptors are put first to make sure they are properly
796  * aligned and do not cross cache-line boundaries.
797  */
798 
799 struct rr_private
800 {
801 	struct rx_desc		*rx_ring;
802 	struct tx_desc		*tx_ring;
803 	struct event		*evt_ring;
804 	dma_addr_t 		tx_ring_dma;
805 	dma_addr_t 		rx_ring_dma;
806 	dma_addr_t 		evt_ring_dma;
807 	/* Alignment ok ? */
808 	struct sk_buff		*rx_skbuff[RX_RING_ENTRIES];
809 	struct sk_buff		*tx_skbuff[TX_RING_ENTRIES];
810 	struct rr_regs		__iomem *regs;		/* Register base */
811 	struct ring_ctrl	*rx_ctrl;	/* Receive ring control */
812 	struct rr_info		*info;		/* Shared info page */
813 	dma_addr_t 		rx_ctrl_dma;
814 	dma_addr_t 		info_dma;
815 	spinlock_t		lock;
816 	struct timer_list	timer;
817 	u32			cur_rx, cur_cmd, cur_evt;
818 	u32			dirty_rx, dirty_tx;
819 	u32			tx_full;
820 	u32			fw_rev;
821 	volatile short		fw_running;
822 	struct pci_dev		*pci_dev;
823 };
824 
825 
826 /*
827  * Prototypes
828  */
829 static int rr_init(struct net_device *dev);
830 static int rr_init1(struct net_device *dev);
831 static irqreturn_t rr_interrupt(int irq, void *dev_id);
832 
833 static int rr_open(struct net_device *dev);
834 static netdev_tx_t rr_start_xmit(struct sk_buff *skb,
835 				 struct net_device *dev);
836 static int rr_close(struct net_device *dev);
837 static int rr_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
838 static unsigned int rr_read_eeprom(struct rr_private *rrpriv,
839 				   unsigned long offset,
840 				   unsigned char *buf,
841 				   unsigned long length);
842 static u32 rr_read_eeprom_word(struct rr_private *rrpriv, size_t offset);
843 static int rr_load_firmware(struct net_device *dev);
844 static inline void rr_raz_tx(struct rr_private *, struct net_device *);
845 static inline void rr_raz_rx(struct rr_private *, struct net_device *);
846 #endif /* _RRUNNER_H_ */
847