1/*
2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
3 * All rights reserved.
4 *
5 * This software may be redistributed and/or modified under
6 * the terms of the GNU General Public License as published by the Free
7 * Software Foundation; either version 2 of the License, or
8 * any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * for more details.
14 *
15 * File: via-velocity.h
16 *
17 * Purpose: Header file to define driver's private structures.
18 *
19 * Author: Chuang Liang-Shing, AJ Jiang
20 *
21 * Date: Jan 24, 2003
22 *
23 * Changes for Etherboot Port:
24 *       Copyright (c) 2006 by Timothy Legge <tlegge@rogers.com>
25 */
26
27#ifndef VELOCITY_H
28#define VELOCITY_H
29
30#define VELOCITY_TX_CSUM_SUPPORT
31
32#define VELOCITY_NAME          "via-velocity"
33#define VELOCITY_FULL_DRV_NAM  "VIA Networking Velocity Family Gigabit Ethernet Adapter Driver"
34#define VELOCITY_VERSION       "1.13"
35
36#define PKT_BUF_SZ          1564
37
38#define MAX_UNITS           8
39#define OPTION_DEFAULT      { [0 ... MAX_UNITS-1] = -1}
40
41#define REV_ID_VT6110       (0)
42
43#define BYTE_REG_BITS_ON(x,p)       do { writeb(readb((p))|(x),(p));} while (0)
44#define WORD_REG_BITS_ON(x,p)       do { writew(readw((p))|(x),(p));} while (0)
45#define DWORD_REG_BITS_ON(x,p)      do { writel(readl((p))|(x),(p));} while (0)
46
47#define BYTE_REG_BITS_IS_ON(x,p)    (readb((p)) & (x))
48#define WORD_REG_BITS_IS_ON(x,p)    (readw((p)) & (x))
49#define DWORD_REG_BITS_IS_ON(x,p)   (readl((p)) & (x))
50
51#define BYTE_REG_BITS_OFF(x,p)      do { writeb(readb((p)) & (~(x)),(p));} while (0)
52#define WORD_REG_BITS_OFF(x,p)      do { writew(readw((p)) & (~(x)),(p));} while (0)
53#define DWORD_REG_BITS_OFF(x,p)     do { writel(readl((p)) & (~(x)),(p));} while (0)
54
55#define BYTE_REG_BITS_SET(x,m,p)    do { writeb( (readb((p)) & (~(m))) |(x),(p));} while (0)
56#define WORD_REG_BITS_SET(x,m,p)    do { writew( (readw((p)) & (~(m))) |(x),(p));} while (0)
57#define DWORD_REG_BITS_SET(x,m,p)   do { writel( (readl((p)) & (~(m)))|(x),(p));}  while (0)
58
59#define VAR_USED(p)     do {(p)=(p);} while (0)
60
61/*
62 * Purpose: Structures for MAX RX/TX descriptors.
63 */
64
65
66#define B_OWNED_BY_CHIP     1
67#define B_OWNED_BY_HOST     0
68
69/*
70 * Bits in the RSR0 register
71 */
72
73#define RSR_DETAG          0x0080
74#define RSR_SNTAG          0x0040
75#define RSR_RXER           0x0020
76#define RSR_RL             0x0010
77#define RSR_CE             0x0008
78#define RSR_FAE            0x0004
79#define RSR_CRC            0x0002
80#define RSR_VIDM           0x0001
81
82/*
83 * Bits in the RSR1 register
84 */
85
86#define RSR_RXOK           0x8000	// rx OK
87#define RSR_PFT            0x4000	// Perfect filtering address match
88#define RSR_MAR            0x2000	// MAC accept multicast address packet
89#define RSR_BAR            0x1000	// MAC accept broadcast address packet
90#define RSR_PHY            0x0800	// MAC accept physical address packet
91#define RSR_VTAG           0x0400	// 802.1p/1q tagging packet indicator
92#define RSR_STP            0x0200	// start of packet
93#define RSR_EDP            0x0100	// end of packet
94
95/*
96 * Bits in the RSR1 register
97 */
98
99#define RSR1_RXOK           0x80	// rx OK
100#define RSR1_PFT            0x40	// Perfect filtering address match
101#define RSR1_MAR            0x20	// MAC accept multicast address packet
102#define RSR1_BAR            0x10	// MAC accept broadcast address packet
103#define RSR1_PHY            0x08	// MAC accept physical address packet
104#define RSR1_VTAG           0x04	// 802.1p/1q tagging packet indicator
105#define RSR1_STP            0x02	// start of packet
106#define RSR1_EDP            0x01	// end of packet
107
108/*
109 * Bits in the CSM register
110 */
111
112#define CSM_IPOK            0x40	//IP Checkusm validatiaon ok
113#define CSM_TUPOK           0x20	//TCP/UDP Checkusm validatiaon ok
114#define CSM_FRAG            0x10	//Fragment IP datagram
115#define CSM_IPKT            0x04	//Received an IP packet
116#define CSM_TCPKT           0x02	//Received a TCP packet
117#define CSM_UDPKT           0x01	//Received a UDP packet
118
119/*
120 * Bits in the TSR0 register
121 */
122
123#define TSR0_ABT            0x0080	// Tx abort because of excessive collision
124#define TSR0_OWT            0x0040	// Jumbo frame Tx abort
125#define TSR0_OWC            0x0020	// Out of window collision
126#define TSR0_COLS           0x0010	// experience collision in this transmit event
127#define TSR0_NCR3           0x0008	// collision retry counter[3]
128#define TSR0_NCR2           0x0004	// collision retry counter[2]
129#define TSR0_NCR1           0x0002	// collision retry counter[1]
130#define TSR0_NCR0           0x0001	// collision retry counter[0]
131#define TSR0_TERR           0x8000	//
132#define TSR0_FDX            0x4000	// current transaction is serviced by full duplex mode
133#define TSR0_GMII           0x2000	// current transaction is serviced by GMII mode
134#define TSR0_LNKFL          0x1000	// packet serviced during link down
135#define TSR0_SHDN           0x0400	// shutdown case
136#define TSR0_CRS            0x0200	// carrier sense lost
137#define TSR0_CDH            0x0100	// AQE test fail (CD heartbeat)
138
139/*
140 * Bits in the TSR1 register
141 */
142
143#define TSR1_TERR           0x80	//
144#define TSR1_FDX            0x40	// current transaction is serviced by full duplex mode
145#define TSR1_GMII           0x20	// current transaction is serviced by GMII mode
146#define TSR1_LNKFL          0x10	// packet serviced during link down
147#define TSR1_SHDN           0x04	// shutdown case
148#define TSR1_CRS            0x02	// carrier sense lost
149#define TSR1_CDH            0x01	// AQE test fail (CD heartbeat)
150
151//
152// Bits in the TCR0 register
153//
154#define TCR0_TIC            0x80	// assert interrupt immediately while descriptor has been send complete
155#define TCR0_PIC            0x40	// priority interrupt request, INA# is issued over adaptive interrupt scheme
156#define TCR0_VETAG          0x20	// enable VLAN tag
157#define TCR0_IPCK           0x10	// request IP  checksum calculation.
158#define TCR0_UDPCK          0x08	// request UDP checksum calculation.
159#define TCR0_TCPCK          0x04	// request TCP checksum calculation.
160#define TCR0_JMBO           0x02	// indicate a jumbo packet in GMAC side
161#define TCR0_CRC            0x01	// disable CRC generation
162
163#define TCPLS_NORMAL        3
164#define TCPLS_START         2
165#define TCPLS_END           1
166#define TCPLS_MED           0
167
168
169// max transmit or receive buffer size
170#define CB_RX_BUF_SIZE     2048UL	// max buffer size
171					// NOTE: must be multiple of 4
172
173#define CB_MAX_RD_NUM       512	// MAX # of RD
174#define CB_MAX_TD_NUM       256	// MAX # of TD
175
176#define CB_INIT_RD_NUM_3119 128	// init # of RD, for setup VT3119
177#define CB_INIT_TD_NUM_3119 64	// init # of TD, for setup VT3119
178
179#define CB_INIT_RD_NUM      128	// init # of RD, for setup default
180#define CB_INIT_TD_NUM      64	// init # of TD, for setup default
181
182// for 3119
183#define CB_TD_RING_NUM      4	// # of TD rings.
184#define CB_MAX_SEG_PER_PKT  7	// max data seg per packet (Tx)
185
186
187/*
188 *	If collisions excess 15 times , tx will abort, and
189 *	if tx fifo underflow, tx will fail
190 *	we should try to resend it
191 */
192
193#define CB_MAX_TX_ABORT_RETRY   3
194
195/*
196 *	Receive descriptor
197 */
198
199struct rdesc0 {
200	u16 RSR;		/* Receive status */
201	u16 len:14;		/* Received packet length */
202	u16 reserved:1;
203	u16 owner:1;		/* Who owns this buffer ? */
204};
205
206struct rdesc1 {
207	u16 PQTAG;
208	u8 CSM;
209	u8 IPKT;
210};
211
212struct rx_desc {
213	struct rdesc0 rdesc0;
214	struct rdesc1 rdesc1;
215	u32 pa_low;		/* Low 32 bit PCI address */
216	u16 pa_high;		/* Next 16 bit PCI address (48 total) */
217	u16 len:15;		/* Frame size */
218	u16 inten:1;		/* Enable interrupt */
219} __attribute__ ((__packed__));
220
221/*
222 *	Transmit descriptor
223 */
224
225struct tdesc0 {
226	u16 TSR;		/* Transmit status register */
227	u16 pktsize:14;		/* Size of frame */
228	u16 reserved:1;
229	u16 owner:1;		/* Who owns the buffer */
230};
231
232struct pqinf {			/* Priority queue info */
233	u16 VID:12;
234	u16 CFI:1;
235	u16 priority:3;
236} __attribute__ ((__packed__));
237
238struct tdesc1 {
239	struct pqinf pqinf;
240	u8 TCR;
241	u8 TCPLS:2;
242	u8 reserved:2;
243	u8 CMDZ:4;
244} __attribute__ ((__packed__));
245
246struct td_buf {
247	u32 pa_low;
248	u16 pa_high;
249	u16 bufsize:14;
250	u16 reserved:1;
251	u16 queue:1;
252} __attribute__ ((__packed__));
253
254struct tx_desc {
255	struct tdesc0 tdesc0;
256	struct tdesc1 tdesc1;
257	struct td_buf td_buf[7];
258};
259
260#ifdef LINUX
261struct velocity_rd_info {
262	struct sk_buff *skb;
263	dma_addr_t skb_dma;
264};
265
266
267/**
268 *	alloc_rd_info		-	allocate an rd info block
269 *
270 *	Alocate and initialize a receive info structure used for keeping
271 *	track of kernel side information related to each receive
272 *	descriptor we are using
273 */
274
275static inline struct velocity_rd_info *alloc_rd_info(void)
276{
277	struct velocity_rd_info *ptr;
278	if ((ptr =
279	     kmalloc(sizeof(struct velocity_rd_info), GFP_ATOMIC)) == NULL)
280		return NULL;
281	else {
282		memset(ptr, 0, sizeof(struct velocity_rd_info));
283		return ptr;
284	}
285}
286
287/*
288 *	Used to track transmit side buffers.
289 */
290
291struct velocity_td_info {
292	struct sk_buff *skb;
293	u8 *buf;
294	int nskb_dma;
295	dma_addr_t skb_dma[7];
296	dma_addr_t buf_dma;
297};
298
299#endif
300enum {
301	OWNED_BY_HOST = 0,
302	OWNED_BY_NIC = 1
303} velocity_owner;
304
305
306/*
307 *	MAC registers and macros.
308 */
309
310
311#define MCAM_SIZE           64
312#define VCAM_SIZE           64
313#define TX_QUEUE_NO         4
314
315#define MAX_HW_MIB_COUNTER  32
316#define VELOCITY_MIN_MTU    (1514-14)
317#define VELOCITY_MAX_MTU    (9000)
318
319/*
320 *	Registers in the MAC
321 */
322
323#define MAC_REG_PAR         0x00	// physical address
324#define MAC_REG_RCR         0x06
325#define MAC_REG_TCR         0x07
326#define MAC_REG_CR0_SET     0x08
327#define MAC_REG_CR1_SET     0x09
328#define MAC_REG_CR2_SET     0x0A
329#define MAC_REG_CR3_SET     0x0B
330#define MAC_REG_CR0_CLR     0x0C
331#define MAC_REG_CR1_CLR     0x0D
332#define MAC_REG_CR2_CLR     0x0E
333#define MAC_REG_CR3_CLR     0x0F
334#define MAC_REG_MAR         0x10
335#define MAC_REG_CAM         0x10
336#define MAC_REG_DEC_BASE_HI 0x18
337#define MAC_REG_DBF_BASE_HI 0x1C
338#define MAC_REG_ISR_CTL     0x20
339#define MAC_REG_ISR_HOTMR   0x20
340#define MAC_REG_ISR_TSUPTHR 0x20
341#define MAC_REG_ISR_RSUPTHR 0x20
342#define MAC_REG_ISR_CTL1    0x21
343#define MAC_REG_TXE_SR      0x22
344#define MAC_REG_RXE_SR      0x23
345#define MAC_REG_ISR         0x24
346#define MAC_REG_ISR0        0x24
347#define MAC_REG_ISR1        0x25
348#define MAC_REG_ISR2        0x26
349#define MAC_REG_ISR3        0x27
350#define MAC_REG_IMR         0x28
351#define MAC_REG_IMR0        0x28
352#define MAC_REG_IMR1        0x29
353#define MAC_REG_IMR2        0x2A
354#define MAC_REG_IMR3        0x2B
355#define MAC_REG_TDCSR_SET   0x30
356#define MAC_REG_RDCSR_SET   0x32
357#define MAC_REG_TDCSR_CLR   0x34
358#define MAC_REG_RDCSR_CLR   0x36
359#define MAC_REG_RDBASE_LO   0x38
360#define MAC_REG_RDINDX      0x3C
361#define MAC_REG_TDBASE_LO   0x40
362#define MAC_REG_RDCSIZE     0x50
363#define MAC_REG_TDCSIZE     0x52
364#define MAC_REG_TDINDX      0x54
365#define MAC_REG_TDIDX0      0x54
366#define MAC_REG_TDIDX1      0x56
367#define MAC_REG_TDIDX2      0x58
368#define MAC_REG_TDIDX3      0x5A
369#define MAC_REG_PAUSE_TIMER 0x5C
370#define MAC_REG_RBRDU       0x5E
371#define MAC_REG_FIFO_TEST0  0x60
372#define MAC_REG_FIFO_TEST1  0x64
373#define MAC_REG_CAMADDR     0x68
374#define MAC_REG_CAMCR       0x69
375#define MAC_REG_GFTEST      0x6A
376#define MAC_REG_FTSTCMD     0x6B
377#define MAC_REG_MIICFG      0x6C
378#define MAC_REG_MIISR       0x6D
379#define MAC_REG_PHYSR0      0x6E
380#define MAC_REG_PHYSR1      0x6F
381#define MAC_REG_MIICR       0x70
382#define MAC_REG_MIIADR      0x71
383#define MAC_REG_MIIDATA     0x72
384#define MAC_REG_SOFT_TIMER0 0x74
385#define MAC_REG_SOFT_TIMER1 0x76
386#define MAC_REG_CFGA        0x78
387#define MAC_REG_CFGB        0x79
388#define MAC_REG_CFGC        0x7A
389#define MAC_REG_CFGD        0x7B
390#define MAC_REG_DCFG0       0x7C
391#define MAC_REG_DCFG1       0x7D
392#define MAC_REG_MCFG0       0x7E
393#define MAC_REG_MCFG1       0x7F
394
395#define MAC_REG_TBIST       0x80
396#define MAC_REG_RBIST       0x81
397#define MAC_REG_PMCC        0x82
398#define MAC_REG_STICKHW     0x83
399#define MAC_REG_MIBCR       0x84
400#define MAC_REG_EERSV       0x85
401#define MAC_REG_REVID       0x86
402#define MAC_REG_MIBREAD     0x88
403#define MAC_REG_BPMA        0x8C
404#define MAC_REG_EEWR_DATA   0x8C
405#define MAC_REG_BPMD_WR     0x8F
406#define MAC_REG_BPCMD       0x90
407#define MAC_REG_BPMD_RD     0x91
408#define MAC_REG_EECHKSUM    0x92
409#define MAC_REG_EECSR       0x93
410#define MAC_REG_EERD_DATA   0x94
411#define MAC_REG_EADDR       0x96
412#define MAC_REG_EMBCMD      0x97
413#define MAC_REG_JMPSR0      0x98
414#define MAC_REG_JMPSR1      0x99
415#define MAC_REG_JMPSR2      0x9A
416#define MAC_REG_JMPSR3      0x9B
417#define MAC_REG_CHIPGSR     0x9C
418#define MAC_REG_TESTCFG     0x9D
419#define MAC_REG_DEBUG       0x9E
420#define MAC_REG_CHIPGCR     0x9F
421#define MAC_REG_WOLCR0_SET  0xA0
422#define MAC_REG_WOLCR1_SET  0xA1
423#define MAC_REG_PWCFG_SET   0xA2
424#define MAC_REG_WOLCFG_SET  0xA3
425#define MAC_REG_WOLCR0_CLR  0xA4
426#define MAC_REG_WOLCR1_CLR  0xA5
427#define MAC_REG_PWCFG_CLR   0xA6
428#define MAC_REG_WOLCFG_CLR  0xA7
429#define MAC_REG_WOLSR0_SET  0xA8
430#define MAC_REG_WOLSR1_SET  0xA9
431#define MAC_REG_WOLSR0_CLR  0xAC
432#define MAC_REG_WOLSR1_CLR  0xAD
433#define MAC_REG_PATRN_CRC0  0xB0
434#define MAC_REG_PATRN_CRC1  0xB2
435#define MAC_REG_PATRN_CRC2  0xB4
436#define MAC_REG_PATRN_CRC3  0xB6
437#define MAC_REG_PATRN_CRC4  0xB8
438#define MAC_REG_PATRN_CRC5  0xBA
439#define MAC_REG_PATRN_CRC6  0xBC
440#define MAC_REG_PATRN_CRC7  0xBE
441#define MAC_REG_BYTEMSK0_0  0xC0
442#define MAC_REG_BYTEMSK0_1  0xC4
443#define MAC_REG_BYTEMSK0_2  0xC8
444#define MAC_REG_BYTEMSK0_3  0xCC
445#define MAC_REG_BYTEMSK1_0  0xD0
446#define MAC_REG_BYTEMSK1_1  0xD4
447#define MAC_REG_BYTEMSK1_2  0xD8
448#define MAC_REG_BYTEMSK1_3  0xDC
449#define MAC_REG_BYTEMSK2_0  0xE0
450#define MAC_REG_BYTEMSK2_1  0xE4
451#define MAC_REG_BYTEMSK2_2  0xE8
452#define MAC_REG_BYTEMSK2_3  0xEC
453#define MAC_REG_BYTEMSK3_0  0xF0
454#define MAC_REG_BYTEMSK3_1  0xF4
455#define MAC_REG_BYTEMSK3_2  0xF8
456#define MAC_REG_BYTEMSK3_3  0xFC
457
458/*
459 *	Bits in the RCR register
460 */
461
462#define RCR_AS              0x80
463#define RCR_AP              0x40
464#define RCR_AL              0x20
465#define RCR_PROM            0x10
466#define RCR_AB              0x08
467#define RCR_AM              0x04
468#define RCR_AR              0x02
469#define RCR_SEP             0x01
470
471/*
472 *	Bits in the TCR register
473 */
474
475#define TCR_TB2BDIS         0x80
476#define TCR_COLTMC1         0x08
477#define TCR_COLTMC0         0x04
478#define TCR_LB1             0x02	/* loopback[1] */
479#define TCR_LB0             0x01	/* loopback[0] */
480
481/*
482 *	Bits in the CR0 register
483 */
484
485#define CR0_TXON            0x00000008UL
486#define CR0_RXON            0x00000004UL
487#define CR0_STOP            0x00000002UL	/* stop MAC, default = 1 */
488#define CR0_STRT            0x00000001UL	/* start MAC */
489#define CR0_SFRST           0x00008000UL	/* software reset */
490#define CR0_TM1EN           0x00004000UL
491#define CR0_TM0EN           0x00002000UL
492#define CR0_DPOLL           0x00000800UL	/* disable rx/tx auto polling */
493#define CR0_DISAU           0x00000100UL
494#define CR0_XONEN           0x00800000UL
495#define CR0_FDXTFCEN        0x00400000UL	/* full-duplex TX flow control enable */
496#define CR0_FDXRFCEN        0x00200000UL	/* full-duplex RX flow control enable */
497#define CR0_HDXFCEN         0x00100000UL	/* half-duplex flow control enable */
498#define CR0_XHITH1          0x00080000UL	/* TX XON high threshold 1 */
499#define CR0_XHITH0          0x00040000UL	/* TX XON high threshold 0 */
500#define CR0_XLTH1           0x00020000UL	/* TX pause frame low threshold 1 */
501#define CR0_XLTH0           0x00010000UL	/* TX pause frame low threshold 0 */
502#define CR0_GSPRST          0x80000000UL
503#define CR0_FORSRST         0x40000000UL
504#define CR0_FPHYRST         0x20000000UL
505#define CR0_DIAG            0x10000000UL
506#define CR0_INTPCTL         0x04000000UL
507#define CR0_GINTMSK1        0x02000000UL
508#define CR0_GINTMSK0        0x01000000UL
509
510/*
511 *	Bits in the CR1 register
512 */
513
514#define CR1_SFRST           0x80	/* software reset */
515#define CR1_TM1EN           0x40
516#define CR1_TM0EN           0x20
517#define CR1_DPOLL           0x08	/* disable rx/tx auto polling */
518#define CR1_DISAU           0x01
519
520/*
521 *	Bits in the CR2 register
522 */
523
524#define CR2_XONEN           0x80
525#define CR2_FDXTFCEN        0x40	/* full-duplex TX flow control enable */
526#define CR2_FDXRFCEN        0x20	/* full-duplex RX flow control enable */
527#define CR2_HDXFCEN         0x10	/* half-duplex flow control enable */
528#define CR2_XHITH1          0x08	/* TX XON high threshold 1 */
529#define CR2_XHITH0          0x04	/* TX XON high threshold 0 */
530#define CR2_XLTH1           0x02	/* TX pause frame low threshold 1 */
531#define CR2_XLTH0           0x01	/* TX pause frame low threshold 0 */
532
533/*
534 *	Bits in the CR3 register
535 */
536
537#define CR3_GSPRST          0x80
538#define CR3_FORSRST         0x40
539#define CR3_FPHYRST         0x20
540#define CR3_DIAG            0x10
541#define CR3_INTPCTL         0x04
542#define CR3_GINTMSK1        0x02
543#define CR3_GINTMSK0        0x01
544
545#define ISRCTL_UDPINT       0x8000
546#define ISRCTL_TSUPDIS      0x4000
547#define ISRCTL_RSUPDIS      0x2000
548#define ISRCTL_PMSK1        0x1000
549#define ISRCTL_PMSK0        0x0800
550#define ISRCTL_INTPD        0x0400
551#define ISRCTL_HCRLD        0x0200
552#define ISRCTL_SCRLD        0x0100
553
554/*
555 *	Bits in the ISR_CTL1 register
556 */
557
558#define ISRCTL1_UDPINT      0x80
559#define ISRCTL1_TSUPDIS     0x40
560#define ISRCTL1_RSUPDIS     0x20
561#define ISRCTL1_PMSK1       0x10
562#define ISRCTL1_PMSK0       0x08
563#define ISRCTL1_INTPD       0x04
564#define ISRCTL1_HCRLD       0x02
565#define ISRCTL1_SCRLD       0x01
566
567/*
568 *	Bits in the TXE_SR register
569 */
570
571#define TXESR_TFDBS         0x08
572#define TXESR_TDWBS         0x04
573#define TXESR_TDRBS         0x02
574#define TXESR_TDSTR         0x01
575
576/*
577 *	Bits in the RXE_SR register
578 */
579
580#define RXESR_RFDBS         0x08
581#define RXESR_RDWBS         0x04
582#define RXESR_RDRBS         0x02
583#define RXESR_RDSTR         0x01
584
585/*
586 *	Bits in the ISR register
587 */
588
589#define ISR_ISR3            0x80000000UL
590#define ISR_ISR2            0x40000000UL
591#define ISR_ISR1            0x20000000UL
592#define ISR_ISR0            0x10000000UL
593#define ISR_TXSTLI          0x02000000UL
594#define ISR_RXSTLI          0x01000000UL
595#define ISR_HFLD            0x00800000UL
596#define ISR_UDPI            0x00400000UL
597#define ISR_MIBFI           0x00200000UL
598#define ISR_SHDNI           0x00100000UL
599#define ISR_PHYI            0x00080000UL
600#define ISR_PWEI            0x00040000UL
601#define ISR_TMR1I           0x00020000UL
602#define ISR_TMR0I           0x00010000UL
603#define ISR_SRCI            0x00008000UL
604#define ISR_LSTPEI          0x00004000UL
605#define ISR_LSTEI           0x00002000UL
606#define ISR_OVFI            0x00001000UL
607#define ISR_FLONI           0x00000800UL
608#define ISR_RACEI           0x00000400UL
609#define ISR_TXWB1I          0x00000200UL
610#define ISR_TXWB0I          0x00000100UL
611#define ISR_PTX3I           0x00000080UL
612#define ISR_PTX2I           0x00000040UL
613#define ISR_PTX1I           0x00000020UL
614#define ISR_PTX0I           0x00000010UL
615#define ISR_PTXI            0x00000008UL
616#define ISR_PRXI            0x00000004UL
617#define ISR_PPTXI           0x00000002UL
618#define ISR_PPRXI           0x00000001UL
619
620/*
621 *	Bits in the IMR register
622 */
623
624#define IMR_TXSTLM          0x02000000UL
625#define IMR_UDPIM           0x00400000UL
626#define IMR_MIBFIM          0x00200000UL
627#define IMR_SHDNIM          0x00100000UL
628#define IMR_PHYIM           0x00080000UL
629#define IMR_PWEIM           0x00040000UL
630#define IMR_TMR1IM          0x00020000UL
631#define IMR_TMR0IM          0x00010000UL
632
633#define IMR_SRCIM           0x00008000UL
634#define IMR_LSTPEIM         0x00004000UL
635#define IMR_LSTEIM          0x00002000UL
636#define IMR_OVFIM           0x00001000UL
637#define IMR_FLONIM          0x00000800UL
638#define IMR_RACEIM          0x00000400UL
639#define IMR_TXWB1IM         0x00000200UL
640#define IMR_TXWB0IM         0x00000100UL
641
642#define IMR_PTX3IM          0x00000080UL
643#define IMR_PTX2IM          0x00000040UL
644#define IMR_PTX1IM          0x00000020UL
645#define IMR_PTX0IM          0x00000010UL
646#define IMR_PTXIM           0x00000008UL
647#define IMR_PRXIM           0x00000004UL
648#define IMR_PPTXIM          0x00000002UL
649#define IMR_PPRXIM          0x00000001UL
650
651/* 0x0013FB0FUL  =  initial value of IMR */
652
653#define INT_MASK_DEF        ( IMR_PPTXIM|IMR_PPRXIM| IMR_PTXIM|IMR_PRXIM | \
654                            IMR_PWEIM|IMR_TXWB0IM|IMR_TXWB1IM|IMR_FLONIM|  \
655                            IMR_OVFIM|IMR_LSTEIM|IMR_LSTPEIM|IMR_SRCIM|IMR_MIBFIM|\
656                            IMR_SHDNIM |IMR_TMR1IM|IMR_TMR0IM|IMR_TXSTLM )
657
658/*
659 *	Bits in the TDCSR0/1, RDCSR0 register
660 */
661
662#define TRDCSR_DEAD         0x0008
663#define TRDCSR_WAK          0x0004
664#define TRDCSR_ACT          0x0002
665#define TRDCSR_RUN	    0x0001
666
667/*
668 *	Bits in the CAMADDR register
669 */
670
671#define CAMADDR_CAMEN       0x80
672#define CAMADDR_VCAMSL      0x40
673
674/*
675 *	Bits in the CAMCR register
676 */
677
678#define CAMCR_PS1           0x80
679#define CAMCR_PS0           0x40
680#define CAMCR_AITRPKT       0x20
681#define CAMCR_AITR16        0x10
682#define CAMCR_CAMRD         0x08
683#define CAMCR_CAMWR         0x04
684#define CAMCR_PS_CAM_MASK   0x40
685#define CAMCR_PS_CAM_DATA   0x80
686#define CAMCR_PS_MAR        0x00
687
688/*
689 *	Bits in the MIICFG register
690 */
691
692#define MIICFG_MPO1         0x80
693#define MIICFG_MPO0         0x40
694#define MIICFG_MFDC         0x20
695
696/*
697 *	Bits in the MIISR register
698 */
699
700#define MIISR_MIDLE         0x80
701
702/*
703 *	 Bits in the PHYSR0 register
704 */
705
706#define PHYSR0_PHYRST       0x80
707#define PHYSR0_LINKGD       0x40
708#define PHYSR0_FDPX         0x10
709#define PHYSR0_SPDG         0x08
710#define PHYSR0_SPD10        0x04
711#define PHYSR0_RXFLC        0x02
712#define PHYSR0_TXFLC        0x01
713
714/*
715 *	Bits in the PHYSR1 register
716 */
717
718#define PHYSR1_PHYTBI       0x01
719
720/*
721 *	Bits in the MIICR register
722 */
723
724#define MIICR_MAUTO         0x80
725#define MIICR_RCMD          0x40
726#define MIICR_WCMD          0x20
727#define MIICR_MDPM          0x10
728#define MIICR_MOUT          0x08
729#define MIICR_MDO           0x04
730#define MIICR_MDI           0x02
731#define MIICR_MDC           0x01
732
733/*
734 *	Bits in the MIIADR register
735 */
736
737#define MIIADR_SWMPL        0x80
738
739/*
740 *	Bits in the CFGA register
741 */
742
743#define CFGA_PMHCTG         0x08
744#define CFGA_GPIO1PD        0x04
745#define CFGA_ABSHDN         0x02
746#define CFGA_PACPI          0x01
747
748/*
749 *	Bits in the CFGB register
750 */
751
752#define CFGB_GTCKOPT        0x80
753#define CFGB_MIIOPT         0x40
754#define CFGB_CRSEOPT        0x20
755#define CFGB_OFSET          0x10
756#define CFGB_CRANDOM        0x08
757#define CFGB_CAP            0x04
758#define CFGB_MBA            0x02
759#define CFGB_BAKOPT         0x01
760
761/*
762 *	Bits in the CFGC register
763 */
764
765#define CFGC_EELOAD         0x80
766#define CFGC_BROPT          0x40
767#define CFGC_DLYEN          0x20
768#define CFGC_DTSEL          0x10
769#define CFGC_BTSEL          0x08
770#define CFGC_BPS2           0x04	/* bootrom select[2] */
771#define CFGC_BPS1           0x02	/* bootrom select[1] */
772#define CFGC_BPS0           0x01	/* bootrom select[0] */
773
774/*
775 * Bits in the CFGD register
776 */
777
778#define CFGD_IODIS          0x80
779#define CFGD_MSLVDACEN      0x40
780#define CFGD_CFGDACEN       0x20
781#define CFGD_PCI64EN        0x10
782#define CFGD_HTMRL4         0x08
783
784/*
785 *	Bits in the DCFG1 register
786 */
787
788#define DCFG_XMWI           0x8000
789#define DCFG_XMRM           0x4000
790#define DCFG_XMRL           0x2000
791#define DCFG_PERDIS         0x1000
792#define DCFG_MRWAIT         0x0400
793#define DCFG_MWWAIT         0x0200
794#define DCFG_LATMEN         0x0100
795
796/*
797 *	Bits in the MCFG0 register
798 */
799
800#define MCFG_RXARB          0x0080
801#define MCFG_RFT1           0x0020
802#define MCFG_RFT0           0x0010
803#define MCFG_LOWTHOPT       0x0008
804#define MCFG_PQEN           0x0004
805#define MCFG_RTGOPT         0x0002
806#define MCFG_VIDFR          0x0001
807
808/*
809 *	Bits in the MCFG1 register
810 */
811
812#define MCFG_TXARB          0x8000
813#define MCFG_TXQBK1         0x0800
814#define MCFG_TXQBK0         0x0400
815#define MCFG_TXQNOBK        0x0200
816#define MCFG_SNAPOPT        0x0100
817
818/*
819 *	Bits in the PMCC  register
820 */
821
822#define PMCC_DSI            0x80
823#define PMCC_D2_DIS         0x40
824#define PMCC_D1_DIS         0x20
825#define PMCC_D3C_EN         0x10
826#define PMCC_D3H_EN         0x08
827#define PMCC_D2_EN          0x04
828#define PMCC_D1_EN          0x02
829#define PMCC_D0_EN          0x01
830
831/*
832 *	Bits in STICKHW
833 */
834
835#define STICKHW_SWPTAG      0x10
836#define STICKHW_WOLSR       0x08
837#define STICKHW_WOLEN       0x04
838#define STICKHW_DS1         0x02	/* R/W by software/cfg cycle */
839#define STICKHW_DS0         0x01	/* suspend well DS write port */
840
841/*
842 *	Bits in the MIBCR register
843 */
844
845#define MIBCR_MIBISTOK      0x80
846#define MIBCR_MIBISTGO      0x40
847#define MIBCR_MIBINC        0x20
848#define MIBCR_MIBHI         0x10
849#define MIBCR_MIBFRZ        0x08
850#define MIBCR_MIBFLSH       0x04
851#define MIBCR_MPTRINI       0x02
852#define MIBCR_MIBCLR        0x01
853
854/*
855 *	Bits in the EERSV register
856 */
857
858#define EERSV_BOOT_RPL      ((u8) 0x01)	/* Boot method selection for VT6110 */
859
860#define EERSV_BOOT_MASK     ((u8) 0x06)
861#define EERSV_BOOT_INT19    ((u8) 0x00)
862#define EERSV_BOOT_INT18    ((u8) 0x02)
863#define EERSV_BOOT_LOCAL    ((u8) 0x04)
864#define EERSV_BOOT_BEV      ((u8) 0x06)
865
866
867/*
868 *	Bits in BPCMD
869 */
870
871#define BPCMD_BPDNE         0x80
872#define BPCMD_EBPWR         0x02
873#define BPCMD_EBPRD         0x01
874
875/*
876 *	Bits in the EECSR register
877 */
878
879#define EECSR_EMBP          0x40	/* eeprom embeded programming */
880#define EECSR_RELOAD        0x20	/* eeprom content reload */
881#define EECSR_DPM           0x10	/* eeprom direct programming */
882#define EECSR_ECS           0x08	/* eeprom CS pin */
883#define EECSR_ECK           0x04	/* eeprom CK pin */
884#define EECSR_EDI           0x02	/* eeprom DI pin */
885#define EECSR_EDO           0x01	/* eeprom DO pin */
886
887/*
888 *	Bits in the EMBCMD register
889 */
890
891#define EMBCMD_EDONE        0x80
892#define EMBCMD_EWDIS        0x08
893#define EMBCMD_EWEN         0x04
894#define EMBCMD_EWR          0x02
895#define EMBCMD_ERD          0x01
896
897/*
898 *	Bits in TESTCFG register
899 */
900
901#define TESTCFG_HBDIS       0x80
902
903/*
904 *	Bits in CHIPGCR register
905 */
906
907#define CHIPGCR_FCGMII      0x80
908#define CHIPGCR_FCFDX       0x40
909#define CHIPGCR_FCRESV      0x20
910#define CHIPGCR_FCMODE      0x10
911#define CHIPGCR_LPSOPT      0x08
912#define CHIPGCR_TM1US       0x04
913#define CHIPGCR_TM0US       0x02
914#define CHIPGCR_PHYINTEN    0x01
915
916/*
917 *	Bits in WOLCR0
918 */
919
920#define WOLCR_MSWOLEN7      0x0080	/* enable pattern match filtering */
921#define WOLCR_MSWOLEN6      0x0040
922#define WOLCR_MSWOLEN5      0x0020
923#define WOLCR_MSWOLEN4      0x0010
924#define WOLCR_MSWOLEN3      0x0008
925#define WOLCR_MSWOLEN2      0x0004
926#define WOLCR_MSWOLEN1      0x0002
927#define WOLCR_MSWOLEN0      0x0001
928#define WOLCR_ARP_EN        0x0001
929
930/*
931 *	Bits in WOLCR1
932 */
933
934#define WOLCR_LINKOFF_EN      0x0800	/* link off detected enable */
935#define WOLCR_LINKON_EN       0x0400	/* link on detected enable */
936#define WOLCR_MAGIC_EN        0x0200	/* magic packet filter enable */
937#define WOLCR_UNICAST_EN      0x0100	/* unicast filter enable */
938
939
940/*
941 *	Bits in PWCFG
942 */
943
944#define PWCFG_PHYPWOPT          0x80	/* internal MII I/F timing */
945#define PWCFG_PCISTICK          0x40	/* PCI sticky R/W enable */
946#define PWCFG_WOLTYPE           0x20	/* pulse(1) or button (0) */
947#define PWCFG_LEGCY_WOL         0x10
948#define PWCFG_PMCSR_PME_SR      0x08
949#define PWCFG_PMCSR_PME_EN      0x04	/* control by PCISTICK */
950#define PWCFG_LEGACY_WOLSR      0x02	/* Legacy WOL_SR shadow */
951#define PWCFG_LEGACY_WOLEN      0x01	/* Legacy WOL_EN shadow */
952
953/*
954 *	Bits in WOLCFG
955 */
956
957#define WOLCFG_PMEOVR           0x80	/* for legacy use, force PMEEN always */
958#define WOLCFG_SAM              0x20	/* accept multicast case reset, default=0 */
959#define WOLCFG_SAB              0x10	/* accept broadcast case reset, default=0 */
960#define WOLCFG_SMIIACC          0x08	/* ?? */
961#define WOLCFG_SGENWH           0x02
962#define WOLCFG_PHYINTEN         0x01	/* 0:PHYINT trigger enable, 1:use internal MII
963					   to report status change */
964/*
965 *	Bits in WOLSR1
966 */
967
968#define WOLSR_LINKOFF_INT      0x0800
969#define WOLSR_LINKON_INT       0x0400
970#define WOLSR_MAGIC_INT        0x0200
971#define WOLSR_UNICAST_INT      0x0100
972
973/*
974 *	Ethernet address filter type
975 */
976
977#define PKT_TYPE_NONE               0x0000	/* Turn off receiver */
978#define PKT_TYPE_DIRECTED           0x0001	/* obselete, directed address is always accepted */
979#define PKT_TYPE_MULTICAST          0x0002
980#define PKT_TYPE_ALL_MULTICAST      0x0004
981#define PKT_TYPE_BROADCAST          0x0008
982#define PKT_TYPE_PROMISCUOUS        0x0020
983#define PKT_TYPE_LONG               0x2000	/* NOTE.... the definition of LONG is >2048 bytes in our chip */
984#define PKT_TYPE_RUNT               0x4000
985#define PKT_TYPE_ERROR              0x8000	/* Accept error packets, e.g. CRC error */
986
987/*
988 *	Loopback mode
989 */
990
991#define MAC_LB_NONE         0x00
992#define MAC_LB_INTERNAL     0x01
993#define MAC_LB_EXTERNAL     0x02
994
995/*
996 *	Enabled mask value of irq
997 */
998
999#if defined(_SIM)
1000#define IMR_MASK_VALUE      0x0033FF0FUL	/* initial value of IMR
1001						   set IMR0 to 0x0F according to spec */
1002
1003#else
1004#define IMR_MASK_VALUE      0x0013FB0FUL	/* initial value of IMR
1005						   ignore MIBFI,RACEI to
1006						   reduce intr. frequency
1007						   NOTE.... do not enable NoBuf int mask at driver driver
1008						   when (1) NoBuf -> RxThreshold = SF
1009						   (2) OK    -> RxThreshold = original value
1010						 */
1011#endif
1012
1013/*
1014 *	Revision id
1015 */
1016
1017#define REV_ID_VT3119_A0	0x00
1018#define REV_ID_VT3119_A1	0x01
1019#define REV_ID_VT3216_A0	0x10
1020
1021/*
1022 *	Max time out delay time
1023 */
1024
1025#define W_MAX_TIMEOUT       0x0FFFU
1026
1027
1028/*
1029 *	MAC registers as a structure. Cannot be directly accessed this
1030 *	way but generates offsets for readl/writel() calls
1031 */
1032
1033struct mac_regs {
1034	volatile u8 PAR[6];	/* 0x00 */
1035	volatile u8 RCR;
1036	volatile u8 TCR;
1037
1038	volatile u32 CR0Set;	/* 0x08 */
1039	volatile u32 CR0Clr;	/* 0x0C */
1040
1041	volatile u8 MARCAM[8];	/* 0x10 */
1042
1043	volatile u32 DecBaseHi;	/* 0x18 */
1044	volatile u16 DbfBaseHi;	/* 0x1C */
1045	volatile u16 reserved_1E;
1046
1047	volatile u16 ISRCTL;	/* 0x20 */
1048	volatile u8 TXESR;
1049	volatile u8 RXESR;
1050
1051	volatile u32 ISR;	/* 0x24 */
1052	volatile u32 IMR;
1053
1054	volatile u32 TDStatusPort;	/* 0x2C */
1055
1056	volatile u16 TDCSRSet;	/* 0x30 */
1057	volatile u8 RDCSRSet;
1058	volatile u8 reserved_33;
1059	volatile u16 TDCSRClr;
1060	volatile u8 RDCSRClr;
1061	volatile u8 reserved_37;
1062
1063	volatile u32 RDBaseLo;	/* 0x38 */
1064	volatile u16 RDIdx;	/* 0x3C */
1065	volatile u16 reserved_3E;
1066
1067	volatile u32 TDBaseLo[4];	/* 0x40 */
1068
1069	volatile u16 RDCSize;	/* 0x50 */
1070	volatile u16 TDCSize;	/* 0x52 */
1071	volatile u16 TDIdx[4];	/* 0x54 */
1072	volatile u16 tx_pause_timer;	/* 0x5C */
1073	volatile u16 RBRDU;	/* 0x5E */
1074
1075	volatile u32 FIFOTest0;	/* 0x60 */
1076	volatile u32 FIFOTest1;	/* 0x64 */
1077
1078	volatile u8 CAMADDR;	/* 0x68 */
1079	volatile u8 CAMCR;	/* 0x69 */
1080	volatile u8 GFTEST;	/* 0x6A */
1081	volatile u8 FTSTCMD;	/* 0x6B */
1082
1083	volatile u8 MIICFG;	/* 0x6C */
1084	volatile u8 MIISR;
1085	volatile u8 PHYSR0;
1086	volatile u8 PHYSR1;
1087	volatile u8 MIICR;
1088	volatile u8 MIIADR;
1089	volatile u16 MIIDATA;
1090
1091	volatile u16 SoftTimer0;	/* 0x74 */
1092	volatile u16 SoftTimer1;
1093
1094	volatile u8 CFGA;	/* 0x78 */
1095	volatile u8 CFGB;
1096	volatile u8 CFGC;
1097	volatile u8 CFGD;
1098
1099	volatile u16 DCFG;	/* 0x7C */
1100	volatile u16 MCFG;
1101
1102	volatile u8 TBIST;	/* 0x80 */
1103	volatile u8 RBIST;
1104	volatile u8 PMCPORT;
1105	volatile u8 STICKHW;
1106
1107	volatile u8 MIBCR;	/* 0x84 */
1108	volatile u8 reserved_85;
1109	volatile u8 rev_id;
1110	volatile u8 PORSTS;
1111
1112	volatile u32 MIBData;	/* 0x88 */
1113
1114	volatile u16 EEWrData;
1115
1116	volatile u8 reserved_8E;
1117	volatile u8 BPMDWr;
1118	volatile u8 BPCMD;
1119	volatile u8 BPMDRd;
1120
1121	volatile u8 EECHKSUM;	/* 0x92 */
1122	volatile u8 EECSR;
1123
1124	volatile u16 EERdData;	/* 0x94 */
1125	volatile u8 EADDR;
1126	volatile u8 EMBCMD;
1127
1128
1129	volatile u8 JMPSR0;	/* 0x98 */
1130	volatile u8 JMPSR1;
1131	volatile u8 JMPSR2;
1132	volatile u8 JMPSR3;
1133	volatile u8 CHIPGSR;	/* 0x9C */
1134	volatile u8 TESTCFG;
1135	volatile u8 DEBUG;
1136	volatile u8 CHIPGCR;
1137
1138	volatile u16 WOLCRSet;	/* 0xA0 */
1139	volatile u8 PWCFGSet;
1140	volatile u8 WOLCFGSet;
1141
1142	volatile u16 WOLCRClr;	/* 0xA4 */
1143	volatile u8 PWCFGCLR;
1144	volatile u8 WOLCFGClr;
1145
1146	volatile u16 WOLSRSet;	/* 0xA8 */
1147	volatile u16 reserved_AA;
1148
1149	volatile u16 WOLSRClr;	/* 0xAC */
1150	volatile u16 reserved_AE;
1151
1152	volatile u16 PatternCRC[8];	/* 0xB0 */
1153	volatile u32 ByteMask[4][4];	/* 0xC0 */
1154} __attribute__ ((__packed__));
1155
1156
1157enum hw_mib {
1158	HW_MIB_ifRxAllPkts = 0,
1159	HW_MIB_ifRxOkPkts,
1160	HW_MIB_ifTxOkPkts,
1161	HW_MIB_ifRxErrorPkts,
1162	HW_MIB_ifRxRuntOkPkt,
1163	HW_MIB_ifRxRuntErrPkt,
1164	HW_MIB_ifRx64Pkts,
1165	HW_MIB_ifTx64Pkts,
1166	HW_MIB_ifRx65To127Pkts,
1167	HW_MIB_ifTx65To127Pkts,
1168	HW_MIB_ifRx128To255Pkts,
1169	HW_MIB_ifTx128To255Pkts,
1170	HW_MIB_ifRx256To511Pkts,
1171	HW_MIB_ifTx256To511Pkts,
1172	HW_MIB_ifRx512To1023Pkts,
1173	HW_MIB_ifTx512To1023Pkts,
1174	HW_MIB_ifRx1024To1518Pkts,
1175	HW_MIB_ifTx1024To1518Pkts,
1176	HW_MIB_ifTxEtherCollisions,
1177	HW_MIB_ifRxPktCRCE,
1178	HW_MIB_ifRxJumboPkts,
1179	HW_MIB_ifTxJumboPkts,
1180	HW_MIB_ifRxMacControlFrames,
1181	HW_MIB_ifTxMacControlFrames,
1182	HW_MIB_ifRxPktFAE,
1183	HW_MIB_ifRxLongOkPkt,
1184	HW_MIB_ifRxLongPktErrPkt,
1185	HW_MIB_ifTXSQEErrors,
1186	HW_MIB_ifRxNobuf,
1187	HW_MIB_ifRxSymbolErrors,
1188	HW_MIB_ifInRangeLengthErrors,
1189	HW_MIB_ifLateCollisions,
1190	HW_MIB_SIZE
1191};
1192
1193enum chip_type {
1194	CHIP_TYPE_VT6110 = 1,
1195};
1196
1197struct velocity_info_tbl {
1198	enum chip_type chip_id;
1199	char *name;
1200	int io_size;
1201	int txqueue;
1202	u32 flags;
1203};
1204
1205static struct velocity_info_tbl *info;
1206
1207#define mac_hw_mibs_init(regs) {\
1208	BYTE_REG_BITS_ON(MIBCR_MIBFRZ,&((regs)->MIBCR));\
1209	BYTE_REG_BITS_ON(MIBCR_MIBCLR,&((regs)->MIBCR));\
1210	do {}\
1211		while (BYTE_REG_BITS_IS_ON(MIBCR_MIBCLR,&((regs)->MIBCR)));\
1212	BYTE_REG_BITS_OFF(MIBCR_MIBFRZ,&((regs)->MIBCR));\
1213}
1214
1215#define mac_read_isr(regs)  		readl(&((regs)->ISR))
1216#define mac_write_isr(regs, x)  	writel((x),&((regs)->ISR))
1217#define mac_clear_isr(regs) 		writel(0xffffffffL,&((regs)->ISR))
1218
1219#define mac_write_int_mask(mask, regs) 	writel((mask),&((regs)->IMR));
1220#define mac_disable_int(regs)       	writel(CR0_GINTMSK1,&((regs)->CR0Clr))
1221#define mac_enable_int(regs)    	writel(CR0_GINTMSK1,&((regs)->CR0Set))
1222
1223#define mac_hw_mibs_read(regs, MIBs) {\
1224	int i;\
1225	BYTE_REG_BITS_ON(MIBCR_MPTRINI,&((regs)->MIBCR));\
1226	for (i=0;i<HW_MIB_SIZE;i++) {\
1227		(MIBs)[i]=readl(&((regs)->MIBData));\
1228	}\
1229}
1230
1231#define mac_set_dma_length(regs, n) {\
1232	BYTE_REG_BITS_SET((n),0x07,&((regs)->DCFG));\
1233}
1234
1235#define mac_set_rx_thresh(regs, n) {\
1236	BYTE_REG_BITS_SET((n),(MCFG_RFT0|MCFG_RFT1),&((regs)->MCFG));\
1237}
1238
1239#define mac_rx_queue_run(regs) {\
1240	writeb(TRDCSR_RUN, &((regs)->RDCSRSet));\
1241}
1242
1243#define mac_rx_queue_wake(regs) {\
1244	writeb(TRDCSR_WAK, &((regs)->RDCSRSet));\
1245}
1246
1247#define mac_tx_queue_run(regs, n) {\
1248	writew(TRDCSR_RUN<<((n)*4),&((regs)->TDCSRSet));\
1249}
1250
1251#define mac_tx_queue_wake(regs, n) {\
1252	writew(TRDCSR_WAK<<(n*4),&((regs)->TDCSRSet));\
1253}
1254
1255#define mac_eeprom_reload(regs) {\
1256	int i=0;\
1257	BYTE_REG_BITS_ON(EECSR_RELOAD,&((regs)->EECSR));\
1258	do {\
1259		udelay(10);\
1260		if (i++>0x1000) {\
1261			break;\
1262		}\
1263	}while (BYTE_REG_BITS_IS_ON(EECSR_RELOAD,&((regs)->EECSR)));\
1264}
1265
1266enum velocity_cam_type {
1267	VELOCITY_VLAN_ID_CAM = 0,
1268	VELOCITY_MULTICAST_CAM
1269};
1270
1271/**
1272 *	mac_get_cam_mask	-	Read a CAM mask
1273 *	@regs: register block for this velocity
1274 *	@mask: buffer to store mask
1275 *	@cam_type: CAM to fetch
1276 *
1277 *	Fetch the mask bits of the selected CAM and store them into the
1278 *	provided mask buffer.
1279 */
1280
1281static inline void mac_get_cam_mask(struct mac_regs *regs, u8 * mask,
1282				    enum velocity_cam_type cam_type)
1283{
1284	int i;
1285	/* Select CAM mask */
1286	BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0,
1287			  &regs->CAMCR);
1288
1289	if (cam_type == VELOCITY_VLAN_ID_CAM)
1290		writeb(CAMADDR_VCAMSL, &regs->CAMADDR);
1291	else
1292		writeb(0, &regs->CAMADDR);
1293
1294	/* read mask */
1295	for (i = 0; i < 8; i++)
1296		*mask++ = readb(&(regs->MARCAM[i]));
1297
1298	/* disable CAMEN */
1299	writeb(0, &regs->CAMADDR);
1300
1301	/* Select mar */
1302	BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0,
1303			  &regs->CAMCR);
1304
1305}
1306
1307/**
1308 *	mac_set_cam_mask	-	Set a CAM mask
1309 *	@regs: register block for this velocity
1310 *	@mask: CAM mask to load
1311 *	@cam_type: CAM to store
1312 *
1313 *	Store a new mask into a CAM
1314 */
1315
1316static inline void mac_set_cam_mask(struct mac_regs *regs, u8 * mask,
1317				    enum velocity_cam_type cam_type)
1318{
1319	int i;
1320	/* Select CAM mask */
1321	BYTE_REG_BITS_SET(CAMCR_PS_CAM_MASK, CAMCR_PS1 | CAMCR_PS0,
1322			  &regs->CAMCR);
1323
1324	if (cam_type == VELOCITY_VLAN_ID_CAM)
1325		writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL, &regs->CAMADDR);
1326	else
1327		writeb(CAMADDR_CAMEN, &regs->CAMADDR);
1328
1329	for (i = 0; i < 8; i++) {
1330		writeb(*mask++, &(regs->MARCAM[i]));
1331	}
1332	/* disable CAMEN */
1333	writeb(0, &regs->CAMADDR);
1334
1335	/* Select mar */
1336	BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0,
1337			  &regs->CAMCR);
1338}
1339
1340/**
1341 *	mac_set_cam	-	set CAM data
1342 *	@regs: register block of this velocity
1343 *	@idx: Cam index
1344 *	@addr: 2 or 6 bytes of CAM data
1345 *	@cam_type: CAM to load
1346 *
1347 *	Load an address or vlan tag into a CAM
1348 */
1349
1350static inline void mac_set_cam(struct mac_regs *regs, int idx, u8 * addr,
1351			       enum velocity_cam_type cam_type)
1352{
1353	int i;
1354
1355	/* Select CAM mask */
1356	BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0,
1357			  &regs->CAMCR);
1358
1359	idx &= (64 - 1);
1360
1361	if (cam_type == VELOCITY_VLAN_ID_CAM)
1362		writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL | idx,
1363		       &regs->CAMADDR);
1364	else
1365		writeb(CAMADDR_CAMEN | idx, &regs->CAMADDR);
1366
1367	if (cam_type == VELOCITY_VLAN_ID_CAM)
1368		writew(*((u16 *) addr), &regs->MARCAM[0]);
1369	else {
1370		for (i = 0; i < 6; i++) {
1371			writeb(*addr++, &(regs->MARCAM[i]));
1372		}
1373	}
1374	BYTE_REG_BITS_ON(CAMCR_CAMWR, &regs->CAMCR);
1375
1376	udelay(10);
1377
1378	writeb(0, &regs->CAMADDR);
1379
1380	/* Select mar */
1381	BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0,
1382			  &regs->CAMCR);
1383}
1384
1385/**
1386 *	mac_get_cam	-	fetch CAM data
1387 *	@regs: register block of this velocity
1388 *	@idx: Cam index
1389 *	@addr: buffer to hold up to 6 bytes of CAM data
1390 *	@cam_type: CAM to load
1391 *
1392 *	Load an address or vlan tag from a CAM into the buffer provided by
1393 *	the caller. VLAN tags are 2 bytes the address cam entries are 6.
1394 */
1395
1396static inline void mac_get_cam(struct mac_regs *regs, int idx, u8 * addr,
1397			       enum velocity_cam_type cam_type)
1398{
1399	int i;
1400
1401	/* Select CAM mask */
1402	BYTE_REG_BITS_SET(CAMCR_PS_CAM_DATA, CAMCR_PS1 | CAMCR_PS0,
1403			  &regs->CAMCR);
1404
1405	idx &= (64 - 1);
1406
1407	if (cam_type == VELOCITY_VLAN_ID_CAM)
1408		writeb(CAMADDR_CAMEN | CAMADDR_VCAMSL | idx,
1409		       &regs->CAMADDR);
1410	else
1411		writeb(CAMADDR_CAMEN | idx, &regs->CAMADDR);
1412
1413	BYTE_REG_BITS_ON(CAMCR_CAMRD, &regs->CAMCR);
1414
1415	udelay(10);
1416
1417	if (cam_type == VELOCITY_VLAN_ID_CAM)
1418		*((u16 *) addr) = readw(&(regs->MARCAM[0]));
1419	else
1420		for (i = 0; i < 6; i++, addr++)
1421			*((u8 *) addr) = readb(&(regs->MARCAM[i]));
1422
1423	writeb(0, &regs->CAMADDR);
1424
1425	/* Select mar */
1426	BYTE_REG_BITS_SET(CAMCR_PS_MAR, CAMCR_PS1 | CAMCR_PS0,
1427			  &regs->CAMCR);
1428}
1429
1430/**
1431 *	mac_wol_reset	-	reset WOL after exiting low power
1432 *	@regs: register block of this velocity
1433 *
1434 *	Called after we drop out of wake on lan mode in order to
1435 *	reset the Wake on lan features. This function doesn't restore
1436 *	the rest of the logic from the result of sleep/wakeup
1437 */
1438
1439inline static void mac_wol_reset(struct mac_regs *regs)
1440{
1441
1442	/* Turn off SWPTAG right after leaving power mode */
1443	BYTE_REG_BITS_OFF(STICKHW_SWPTAG, &regs->STICKHW);
1444	/* clear sticky bits */
1445	BYTE_REG_BITS_OFF((STICKHW_DS1 | STICKHW_DS0), &regs->STICKHW);
1446
1447	BYTE_REG_BITS_OFF(CHIPGCR_FCGMII, &regs->CHIPGCR);
1448	BYTE_REG_BITS_OFF(CHIPGCR_FCMODE, &regs->CHIPGCR);
1449	/* disable force PME-enable */
1450	writeb(WOLCFG_PMEOVR, &regs->WOLCFGClr);
1451	/* disable power-event config bit */
1452	writew(0xFFFF, &regs->WOLCRClr);
1453	/* clear power status */
1454	writew(0xFFFF, &regs->WOLSRClr);
1455}
1456
1457
1458/*
1459 * Header for WOL definitions. Used to compute hashes
1460 */
1461
1462typedef u8 MCAM_ADDR[ETH_ALEN];
1463
1464struct arp_packet {
1465	u8 dest_mac[ETH_ALEN];
1466	u8 src_mac[ETH_ALEN];
1467	u16 type;
1468	u16 ar_hrd;
1469	u16 ar_pro;
1470	u8 ar_hln;
1471	u8 ar_pln;
1472	u16 ar_op;
1473	u8 ar_sha[ETH_ALEN];
1474	u8 ar_sip[4];
1475	u8 ar_tha[ETH_ALEN];
1476	u8 ar_tip[4];
1477} __attribute__ ((__packed__));
1478
1479struct _magic_packet {
1480	u8 dest_mac[6];
1481	u8 src_mac[6];
1482	u16 type;
1483	u8 MAC[16][6];
1484	u8 password[6];
1485} __attribute__ ((__packed__));
1486
1487/*
1488 *	Store for chip context when saving and restoring status. Not
1489 *	all fields are saved/restored currently.
1490 */
1491
1492struct velocity_context {
1493	u8 mac_reg[256];
1494	MCAM_ADDR cam_addr[MCAM_SIZE];
1495	u16 vcam[VCAM_SIZE];
1496	u32 cammask[2];
1497	u32 patcrc[2];
1498	u32 pattern[8];
1499};
1500
1501
1502/*
1503 *	MII registers.
1504 */
1505
1506
1507/*
1508 *	Registers in the MII (offset unit is WORD)
1509 */
1510
1511#define MII_REG_BMCR        0x00	// physical address
1512#define MII_REG_BMSR        0x01	//
1513#define MII_REG_PHYID1      0x02	// OUI
1514#define MII_REG_PHYID2      0x03	// OUI + Module ID + REV ID
1515#define MII_REG_ANAR        0x04	//
1516#define MII_REG_ANLPAR      0x05	//
1517#define MII_REG_G1000CR     0x09	//
1518#define MII_REG_G1000SR     0x0A	//
1519#define MII_REG_MODCFG      0x10	//
1520#define MII_REG_TCSR        0x16	//
1521#define MII_REG_PLED        0x1B	//
1522// NS, MYSON only
1523#define MII_REG_PCR         0x17	//
1524// ESI only
1525#define MII_REG_PCSR        0x17	//
1526#define MII_REG_AUXCR       0x1C	//
1527
1528// Marvell 88E1000/88E1000S
1529#define MII_REG_PSCR        0x10	// PHY specific control register
1530
1531//
1532// Bits in the BMCR register
1533//
1534#define BMCR_RESET          0x8000	//
1535#define BMCR_LBK            0x4000	//
1536#define BMCR_SPEED100       0x2000	//
1537#define BMCR_AUTO           0x1000	//
1538#define BMCR_PD             0x0800	//
1539#define BMCR_ISO            0x0400	//
1540#define BMCR_REAUTO         0x0200	//
1541#define BMCR_FDX            0x0100	//
1542#define BMCR_SPEED1G        0x0040	//
1543//
1544// Bits in the BMSR register
1545//
1546#define BMSR_AUTOCM         0x0020	//
1547#define BMSR_LNK            0x0004	//
1548
1549//
1550// Bits in the ANAR register
1551//
1552#define ANAR_ASMDIR         0x0800	// Asymmetric PAUSE support
1553#define ANAR_PAUSE          0x0400	// Symmetric PAUSE Support
1554#define ANAR_T4             0x0200	//
1555#define ANAR_TXFD           0x0100	//
1556#define ANAR_TX             0x0080	//
1557#define ANAR_10FD           0x0040	//
1558#define ANAR_10             0x0020	//
1559//
1560// Bits in the ANLPAR register
1561//
1562#define ANLPAR_ASMDIR       0x0800	// Asymmetric PAUSE support
1563#define ANLPAR_PAUSE        0x0400	// Symmetric PAUSE Support
1564#define ANLPAR_T4           0x0200	//
1565#define ANLPAR_TXFD         0x0100	//
1566#define ANLPAR_TX           0x0080	//
1567#define ANLPAR_10FD         0x0040	//
1568#define ANLPAR_10           0x0020	//
1569
1570//
1571// Bits in the G1000CR register
1572//
1573#define G1000CR_1000FD      0x0200	// PHY is 1000-T Full-duplex capable
1574#define G1000CR_1000        0x0100	// PHY is 1000-T Half-duplex capable
1575
1576//
1577// Bits in the G1000SR register
1578//
1579#define G1000SR_1000FD      0x0800	// LP PHY is 1000-T Full-duplex capable
1580#define G1000SR_1000        0x0400	// LP PHY is 1000-T Half-duplex capable
1581
1582#define TCSR_ECHODIS        0x2000	//
1583#define AUXCR_MDPPS         0x0004	//
1584
1585// Bits in the PLED register
1586#define PLED_LALBE			0x0004	//
1587
1588// Marvell 88E1000/88E1000S Bits in the PHY specific control register (10h)
1589#define PSCR_ACRSTX         0x0800	// Assert CRS on Transmit
1590
1591#define PHYID_CICADA_CS8201 0x000FC410UL
1592#define PHYID_VT3216_32BIT  0x000FC610UL
1593#define PHYID_VT3216_64BIT  0x000FC600UL
1594#define PHYID_MARVELL_1000  0x01410C50UL
1595#define PHYID_MARVELL_1000S 0x01410C40UL
1596
1597#define PHYID_REV_ID_MASK   0x0000000FUL
1598
1599#define PHYID_GET_PHY_REV_ID(i)     ((i) & PHYID_REV_ID_MASK)
1600#define PHYID_GET_PHY_ID(i)         ((i) & ~PHYID_REV_ID_MASK)
1601
1602#define MII_REG_BITS_ON(x,i,p) do {\
1603    u16 w;\
1604    velocity_mii_read((p),(i),&(w));\
1605    (w)|=(x);\
1606    velocity_mii_write((p),(i),(w));\
1607} while (0)
1608
1609#define MII_REG_BITS_OFF(x,i,p) do {\
1610    u16 w;\
1611    velocity_mii_read((p),(i),&(w));\
1612    (w)&=(~(x));\
1613    velocity_mii_write((p),(i),(w));\
1614} while (0)
1615
1616#define MII_REG_BITS_IS_ON(x,i,p) ({\
1617    u16 w;\
1618    velocity_mii_read((p),(i),&(w));\
1619    ((int) ((w) & (x)));})
1620
1621#define MII_GET_PHY_ID(p) ({\
1622    u32 id;  \
1623    u16 id2; \
1624    u16 id1; \
1625    velocity_mii_read((p),MII_REG_PHYID2, &id2);\
1626    velocity_mii_read((p),MII_REG_PHYID1, &id1);\
1627    id = ( ( (u32)id2 ) << 16 ) | id1;		\
1628    (id);})
1629
1630#ifdef LINUX
1631/*
1632 * Inline debug routine
1633 */
1634
1635
1636enum velocity_msg_level {
1637	MSG_LEVEL_ERR = 0,	//Errors that will cause abnormal operation.
1638	MSG_LEVEL_NOTICE = 1,	//Some errors need users to be notified.
1639	MSG_LEVEL_INFO = 2,	//Normal message.
1640	MSG_LEVEL_VERBOSE = 3,	//Will report all trival errors.
1641	MSG_LEVEL_DEBUG = 4	//Only for debug purpose.
1642};
1643
1644#ifdef VELOCITY_DEBUG
1645#define ASSERT(x) { \
1646	if (!(x)) { \
1647		printk(KERN_ERR "assertion %s failed: file %s line %d\n", #x,\
1648			__FUNCTION__, __LINE__);\
1649		BUG(); \
1650	}\
1651}
1652#define VELOCITY_DBG(p,args...) printk(p, ##args)
1653#else
1654#define ASSERT(x)
1655#define VELOCITY_DBG(x)
1656#endif
1657
1658#define VELOCITY_PRT(l, p, args...) do {if (l<=msglevel) printf( p ,##args);} while (0)
1659
1660#define VELOCITY_PRT_CAMMASK(p,t) {\
1661	int i;\
1662	if ((t)==VELOCITY_MULTICAST_CAM) {\
1663        	for (i=0;i<(MCAM_SIZE/8);i++)\
1664			printk("%02X",(p)->mCAMmask[i]);\
1665	}\
1666	else {\
1667		for (i=0;i<(VCAM_SIZE/8);i++)\
1668			printk("%02X",(p)->vCAMmask[i]);\
1669	}\
1670	printk("\n");\
1671}
1672
1673#endif
1674
1675#define     VELOCITY_WOL_MAGIC             0x00000000UL
1676#define     VELOCITY_WOL_PHY               0x00000001UL
1677#define     VELOCITY_WOL_ARP               0x00000002UL
1678#define     VELOCITY_WOL_UCAST             0x00000004UL
1679#define     VELOCITY_WOL_BCAST             0x00000010UL
1680#define     VELOCITY_WOL_MCAST             0x00000020UL
1681#define     VELOCITY_WOL_MAGIC_SEC         0x00000040UL
1682
1683/*
1684 *	Flags for options
1685 */
1686
1687#define     VELOCITY_FLAGS_TAGGING         0x00000001UL
1688#define     VELOCITY_FLAGS_TX_CSUM         0x00000002UL
1689#define     VELOCITY_FLAGS_RX_CSUM         0x00000004UL
1690#define     VELOCITY_FLAGS_IP_ALIGN        0x00000008UL
1691#define     VELOCITY_FLAGS_VAL_PKT_LEN     0x00000010UL
1692
1693#define     VELOCITY_FLAGS_FLOW_CTRL       0x01000000UL
1694
1695/*
1696 *	Flags for driver status
1697 */
1698
1699#define     VELOCITY_FLAGS_OPENED          0x00010000UL
1700#define     VELOCITY_FLAGS_VMNS_CONNECTED  0x00020000UL
1701#define     VELOCITY_FLAGS_VMNS_COMMITTED  0x00040000UL
1702#define     VELOCITY_FLAGS_WOL_ENABLED     0x00080000UL
1703
1704/*
1705 *	Flags for MII status
1706 */
1707
1708#define     VELOCITY_LINK_FAIL             0x00000001UL
1709#define     VELOCITY_SPEED_10              0x00000002UL
1710#define     VELOCITY_SPEED_100             0x00000004UL
1711#define     VELOCITY_SPEED_1000            0x00000008UL
1712#define     VELOCITY_DUPLEX_FULL           0x00000010UL
1713#define     VELOCITY_AUTONEG_ENABLE        0x00000020UL
1714#define     VELOCITY_FORCED_BY_EEPROM      0x00000040UL
1715
1716/*
1717 *	For velocity_set_media_duplex
1718 */
1719
1720#define     VELOCITY_LINK_CHANGE           0x00000001UL
1721
1722enum speed_opt {
1723	SPD_DPX_AUTO = 0,
1724	SPD_DPX_100_HALF = 1,
1725	SPD_DPX_100_FULL = 2,
1726	SPD_DPX_10_HALF = 3,
1727	SPD_DPX_10_FULL = 4
1728};
1729
1730enum velocity_init_type {
1731	VELOCITY_INIT_COLD = 0,
1732	VELOCITY_INIT_RESET,
1733	VELOCITY_INIT_WOL
1734};
1735
1736enum velocity_flow_cntl_type {
1737	FLOW_CNTL_DEFAULT = 1,
1738	FLOW_CNTL_TX,
1739	FLOW_CNTL_RX,
1740	FLOW_CNTL_TX_RX,
1741	FLOW_CNTL_DISABLE,
1742};
1743
1744struct velocity_opt {
1745	int numrx;		/* Number of RX descriptors */
1746	int numtx;		/* Number of TX descriptors */
1747	enum speed_opt spd_dpx;	/* Media link mode */
1748	int vid;		/* vlan id */
1749	int DMA_length;		/* DMA length */
1750	int rx_thresh;		/* RX_THRESH */
1751	int flow_cntl;
1752	int wol_opts;		/* Wake on lan options */
1753	int td_int_count;
1754	int int_works;
1755	int rx_bandwidth_hi;
1756	int rx_bandwidth_lo;
1757	int rx_bandwidth_en;
1758	u32 flags;
1759};
1760
1761#define RX_DESC_MIN     4
1762#define RX_DESC_MAX     255
1763#define RX_DESC_DEF     RX_DESC_MIN
1764
1765#define TX_DESC_MIN     1
1766#define TX_DESC_MAX     256
1767#define TX_DESC_DEF     TX_DESC_MIN
1768
1769static struct velocity_info {
1770//      struct list_head list;
1771
1772	struct pci_device *pdev;
1773//      struct net_device *dev;
1774//      struct net_device_stats stats;
1775
1776#ifdef CONFIG_PM
1777	u32 pci_state[16];
1778#endif
1779
1780//      dma_addr_t rd_pool_dma;
1781//      dma_addr_t td_pool_dma[TX_QUEUE_NO];
1782
1783//      dma_addr_t tx_bufs_dma;
1784	u8 *tx_bufs;
1785
1786	u8 ip_addr[4];
1787	enum chip_type chip_id;
1788
1789	struct mac_regs *mac_regs;
1790	unsigned long memaddr;
1791	unsigned long ioaddr;
1792	u32 io_size;
1793
1794	u8 rev_id;
1795
1796#define AVAIL_TD(p,q)   ((p)->options.numtx-((p)->td_used[(q)]))
1797
1798	int num_txq;
1799
1800	volatile int td_used[TX_QUEUE_NO];
1801	int td_curr;
1802	int td_tail[TX_QUEUE_NO];
1803	unsigned char *TxDescArrays;	/* Index of Tx Descriptor buffer */
1804	unsigned char *RxDescArrays;	/* Index of Rx Descriptor buffer */
1805	unsigned char *tx_buffs;
1806	unsigned char *rx_buffs;
1807
1808	unsigned char *txb;
1809	unsigned char *rxb;
1810	struct tx_desc *td_rings;
1811	struct velocity_td_info *td_infos[TX_QUEUE_NO];
1812
1813	int rd_curr;
1814	int rd_dirty;
1815	u32 rd_filled;
1816	struct rx_desc *rd_ring;
1817	struct velocity_rd_info *rd_info;	/* It's an array */
1818
1819#define GET_RD_BY_IDX(vptr, idx)   (vptr->rd_ring[idx])
1820	u32 mib_counter[MAX_HW_MIB_COUNTER];
1821	struct velocity_opt options;
1822
1823	u32 int_mask;
1824
1825	u32 flags;
1826
1827	int rx_buf_sz;
1828	u32 mii_status;
1829	u32 phy_id;
1830	int multicast_limit;
1831
1832	u8 vCAMmask[(VCAM_SIZE / 8)];
1833	u8 mCAMmask[(MCAM_SIZE / 8)];
1834
1835//      spinlock_t lock;
1836
1837	int wol_opts;
1838	u8 wol_passwd[6];
1839
1840	struct velocity_context context;
1841
1842	u32 ticks;
1843	u32 rx_bytes;
1844
1845} vptx;
1846
1847static struct velocity_info *vptr;
1848
1849#ifdef LINUX
1850/**
1851 *	velocity_get_ip		-	find an IP address for the device
1852 *	@vptr: Velocity to query
1853 *
1854 *	Dig out an IP address for this interface so that we can
1855 *	configure wakeup with WOL for ARP. If there are multiple IP
1856 *	addresses on this chain then we use the first - multi-IP WOL is not
1857 *	supported.
1858 *
1859 *	CHECK ME: locking
1860 */
1861
1862inline static int velocity_get_ip(struct velocity_info *vptr)
1863{
1864	struct in_device *in_dev = (struct in_device *) vptr->dev->ip_ptr;
1865	struct in_ifaddr *ifa;
1866
1867	if (in_dev != NULL) {
1868		ifa = (struct in_ifaddr *) in_dev->ifa_list;
1869		if (ifa != NULL) {
1870			memcpy(vptr->ip_addr, &ifa->ifa_address, 4);
1871			return 0;
1872		}
1873	}
1874	return -ENOENT;
1875}
1876
1877/**
1878 *	velocity_update_hw_mibs	-	fetch MIB counters from chip
1879 *	@vptr: velocity to update
1880 *
1881 *	The velocity hardware keeps certain counters in the hardware
1882 * 	side. We need to read these when the user asks for statistics
1883 *	or when they overflow (causing an interrupt). The read of the
1884 *	statistic clears it, so we keep running master counters in user
1885 *	space.
1886 */
1887
1888static inline void velocity_update_hw_mibs(struct velocity_info *vptr)
1889{
1890	u32 tmp;
1891	int i;
1892	BYTE_REG_BITS_ON(MIBCR_MIBFLSH, &(vptr->mac_regs->MIBCR));
1893
1894	while (BYTE_REG_BITS_IS_ON
1895	       (MIBCR_MIBFLSH, &(vptr->mac_regs->MIBCR)));
1896
1897	BYTE_REG_BITS_ON(MIBCR_MPTRINI, &(vptr->mac_regs->MIBCR));
1898	for (i = 0; i < HW_MIB_SIZE; i++) {
1899		tmp = readl(&(vptr->mac_regs->MIBData)) & 0x00FFFFFFUL;
1900		vptr->mib_counter[i] += tmp;
1901	}
1902}
1903#endif
1904/**
1905 *	init_flow_control_register 	-	set up flow control
1906 *	@vptr: velocity to configure
1907 *
1908 *	Configure the flow control registers for this velocity device.
1909 */
1910
1911static inline void init_flow_control_register(struct velocity_info *vptr)
1912{
1913	struct mac_regs *regs = vptr->mac_regs;
1914
1915	/* Set {XHITH1, XHITH0, XLTH1, XLTH0} in FlowCR1 to {1, 0, 1, 1}
1916	   depend on RD=64, and Turn on XNOEN in FlowCR1 */
1917	writel((CR0_XONEN | CR0_XHITH1 | CR0_XLTH1 | CR0_XLTH0),
1918	       &regs->CR0Set);
1919	writel((CR0_FDXTFCEN | CR0_FDXRFCEN | CR0_HDXFCEN | CR0_XHITH0),
1920	       &regs->CR0Clr);
1921
1922	/* Set TxPauseTimer to 0xFFFF */
1923	writew(0xFFFF, &regs->tx_pause_timer);
1924
1925	/* Initialize RBRDU to Rx buffer count. */
1926	writew(vptr->options.numrx, &regs->RBRDU);
1927}
1928
1929
1930#endif
1931