xref: /freebsd/sys/dev/vr/if_vrreg.h (revision 5bb3134a8c21cb87b30e135ef168483f0333dabb)
1 /*-
2  * SPDX-License-Identifier: BSD-4-Clause
3  *
4  * Copyright (c) 1997, 1998
5  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by Bill Paul.
18  * 4. Neither the name of the author nor the names of any co-contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32  * THE POSSIBILITY OF SUCH DAMAGE.
33  *
34  * $FreeBSD$
35  */
36 
37 /*
38  * Rhine register definitions.
39  */
40 
41 #define VR_PAR0			0x00	/* node address 0 to 4 */
42 #define VR_PAR1			0x04	/* node address 2 to 6 */
43 #define VR_RXCFG		0x06	/* receiver config register */
44 #define VR_TXCFG		0x07	/* transmit config register */
45 #define VR_CR0			0x08	/* command register 0 */
46 #define VR_CR1			0x09	/* command register 1 */
47 #define	VR_TQW			0x0A	/* tx queue wake 6105M, 8bits */
48 #define VR_ISR			0x0C	/* interrupt/status register */
49 #define VR_IMR			0x0E	/* interrupt mask register */
50 #define VR_MAR0			0x10	/* multicast hash 0 */
51 #define VR_MAR1			0x14	/* multicast hash 1 */
52 #define VR_MCAM0		0x10
53 #define VR_MCAM1		0x11
54 #define VR_MCAM2		0x12
55 #define VR_MCAM3		0x13
56 #define VR_MCAM4		0x14
57 #define VR_MCAM5		0x15
58 #define VR_VCAM0		0x16
59 #define VR_VCAM1		0x17
60 #define VR_RXADDR		0x18	/* rx descriptor list start addr */
61 #define VR_TXADDR		0x1C	/* tx descriptor list start addr */
62 #define VR_CURRXDESC0		0x20
63 #define VR_CURRXDESC1		0x24
64 #define VR_CURRXDESC2		0x28
65 #define VR_CURRXDESC3		0x2C
66 #define VR_NEXTRXDESC0		0x30
67 #define VR_NEXTRXDESC1		0x34
68 #define VR_NEXTRXDESC2		0x38
69 #define VR_NEXTRXDESC3		0x3C
70 #define VR_CURTXDESC0		0x40
71 #define VR_CURTXDESC1		0x44
72 #define VR_CURTXDESC2		0x48
73 #define VR_CURTXDESC3		0x4C
74 #define VR_NEXTTXDESC0		0x50
75 #define VR_NEXTTXDESC1		0x54
76 #define VR_NEXTTXDESC2		0x58
77 #define VR_NEXTTXDESC3		0x5C
78 #define VR_CURRXDMA		0x60	/* current RX DMA address */
79 #define VR_CURTXDMA		0x64	/* current TX DMA address */
80 #define VR_TALLYCNT		0x68	/* tally counter test register */
81 #define VR_PHYADDR		0x6C
82 #define VR_MIISTAT		0x6D
83 #define VR_BCR0			0x6E
84 #define VR_BCR1			0x6F
85 #define VR_MIICMD		0x70
86 #define VR_MIIADDR		0x71
87 #define VR_MIIDATA		0x72
88 #define VR_EECSR		0x74
89 #define VR_TEST			0x75
90 #define VR_GPIO			0x76
91 #define	VR_CFGA			0x78
92 #define	VR_CFGB			0x79
93 #define	VR_CFGC			0x7A
94 #define	VR_CFGD			0x7B
95 #define VR_MPA_CNT		0x7C
96 #define VR_CRC_CNT		0x7E
97 #define VR_MISC_CR0		0x80	/* VT6102, 8bits */
98 #define VR_MISC_CR1		0x81
99 #define VR_STICKHW		0x83
100 #define	VR_MII_ISR		0x84
101 #define	VR_MII_IMR		0x86
102 #define	VR_CAMMASK		0x88	/* VT6105M, 32bits */
103 #define	VR_CAMCTL		0x92	/* VT6105M, 8bits */
104 #define	VR_CAMADDR		0x93	/* VT6105M, 8bits */
105 #define	VR_FLOWCR0		0x98
106 #define	VR_FLOWCR1		0x99
107 #define	VR_PAUSETIMER		0x9A	/* 16bit */
108 #define	VR_WOLCR_SET		0xA0
109 #define	VR_PWRCFG_SET		0xA1
110 #define	VR_TESTREG_SET		0xA2
111 #define	VR_WOLCFG_SET		0xA3
112 #define	VR_WOLCR_CLR		0xA4
113 #define	VR_PWRCFG_CLR		0xA5
114 #define	VR_TESTREG_CLR		0xA6
115 #define	VR_WOLCFG_CLR		0xA7
116 #define	VR_PWRCSR_SET		0xA8
117 #define	VR_PWRCSR1_SET		0xA9
118 #define	VR_PWRCSR_CLR		0xAC
119 #define	VR_PWRCSR1_CLR		0xAD
120 
121 /* Misc Registers */
122 #define	VR_MISCCR0_RXPAUSE	0x08
123 #define VR_MISCCR1_FORSRST	0x40
124 
125 /*
126  * RX config bits.
127  */
128 #define VR_RXCFG_RX_ERRPKTS	0x01
129 #define VR_RXCFG_RX_RUNT	0x02
130 #define VR_RXCFG_RX_MULTI	0x04
131 #define VR_RXCFG_RX_BROAD	0x08
132 #define VR_RXCFG_RX_PROMISC	0x10
133 #define VR_RXCFG_RX_THRESH	0xE0
134 
135 #define VR_RXTHRESH_32BYTES	0x00
136 #define VR_RXTHRESH_64BYTES	0x20
137 #define VR_RXTHRESH_128BYTES	0x40
138 #define VR_RXTHRESH_256BYTES	0x60
139 #define VR_RXTHRESH_512BYTES	0x80
140 #define VR_RXTHRESH_768BYTES	0xA0
141 #define VR_RXTHRESH_1024BYTES	0xC0
142 #define VR_RXTHRESH_STORENFWD	0xE0
143 
144 /*
145  * TX config bits.
146  */
147 #define VR_TXCFG_TXTAGEN	0x01	/* 6105M */
148 #define VR_TXCFG_LOOPBKMODE	0x06
149 #define VR_TXCFG_BACKOFF	0x08
150 #define VR_TXCFG_RXTAGCTL	0x10	/* 6105M */
151 #define VR_TXCFG_TX_THRESH	0xE0
152 
153 #define VR_TXTHRESH_32BYTES	0x00
154 #define VR_TXTHRESH_64BYTES	0x20
155 #define VR_TXTHRESH_128BYTES	0x40
156 #define VR_TXTHRESH_256BYTES	0x60
157 #define VR_TXTHRESH_512BYTES	0x80
158 #define VR_TXTHRESH_768BYTES	0xA0
159 #define VR_TXTHRESH_1024BYTES	0xC0
160 #define VR_TXTHRESH_STORENFWD	0xE0
161 #define VR_TXTHRESH_MIN		1	/* 64 bytes */
162 #define VR_TXTHRESH_MAX		5	/* store and forward */
163 
164 /*
165  * Command register bits.
166  */
167 #define VR_CR0_INIT		0x01
168 #define VR_CR0_START		0x02
169 #define VR_CR0_STOP		0x04
170 #define VR_CR0_RX_ON		0x08
171 #define VR_CR0_TX_ON		0x10
172 #define	VR_CR0_TX_GO		0x20
173 #define VR_CR0_RX_GO		0x40
174 #define VR_CR0_RSVD		0x80
175 #define VR_CR1_RX_EARLY		0x01
176 #define VR_CR1_TX_EARLY		0x02
177 #define VR_CR1_FULLDUPLEX	0x04
178 #define VR_CR1_TX_NOPOLL	0x08
179 
180 #define VR_CR1_RESET		0x80
181 
182 /*
183  * Interrupt status bits.
184  */
185 #define VR_ISR_RX_OK		0x0001	/* packet rx ok */
186 #define VR_ISR_TX_OK		0x0002	/* packet tx ok */
187 #define VR_ISR_RX_ERR		0x0004	/* packet rx with err */
188 #define VR_ISR_TX_ABRT		0x0008	/* tx aborted due to excess colls */
189 #define VR_ISR_TX_UNDERRUN	0x0010	/* tx buffer underflow */
190 #define VR_ISR_RX_NOBUF		0x0020	/* no rx buffer available */
191 #define VR_ISR_BUSERR		0x0040	/* PCI bus error */
192 #define VR_ISR_STATSOFLOW	0x0080	/* stats counter oflow */
193 #define VR_ISR_RX_EARLY		0x0100	/* rx early */
194 #define VR_ISR_LINKSTAT		0x0200	/* MII status change */
195 #define VR_ISR_ETI		0x0200	/* Tx early (3043/3071) */
196 #define VR_ISR_UDFI		0x0200	/* Tx FIFO underflow (6102) */
197 #define VR_ISR_RX_OFLOW		0x0400	/* rx FIFO overflow */
198 #define VR_ISR_RX_DROPPED	0x0800
199 #define VR_ISR_RX_NOBUF2	0x1000	/* Rx descriptor running up */
200 #define VR_ISR_TX_ABRT2		0x2000
201 #define VR_ISR_LINKSTAT2	0x4000
202 #define VR_ISR_MAGICPACKET	0x8000
203 
204 #define VR_ISR_ERR_BITS		"\20"					\
205 				"\3RXERR\4TXABRT\5TXUNDERRUN"		\
206 				"\6RXNOBUF\7BUSERR\10STATSOFLOW"	\
207 				"\12TXUDF\13RXOFLOW\14RXDROPPED"	\
208 				"\15RXNOBUF2\16TXABRT2"
209 /*
210  * Interrupt mask bits.
211  */
212 #define VR_IMR_RX_OK		0x0001	/* packet rx ok */
213 #define VR_IMR_TX_OK		0x0002	/* packet tx ok */
214 #define VR_IMR_RX_ERR		0x0004	/* packet rx with err */
215 #define VR_IMR_TX_ABRT		0x0008	/* tx aborted due to excess colls */
216 #define VR_IMR_TX_UNDERRUN	0x0010	/* tx buffer underflow */
217 #define VR_IMR_RX_NOBUF		0x0020	/* no rx buffer available */
218 #define VR_IMR_BUSERR		0x0040	/* PCI bus error */
219 #define VR_IMR_STATSOFLOW	0x0080	/* stats counter oflow */
220 #define VR_IMR_RX_EARLY		0x0100	/* rx early */
221 #define VR_IMR_LINKSTAT		0x0200	/* MII status change */
222 #define VR_IMR_RX_OFLOW		0x0400	/* rx FIFO overflow */
223 #define VR_IMR_RX_DROPPED	0x0800
224 #define VR_IMR_RX_NOBUF2	0x1000
225 #define VR_IMR_TX_ABRT2		0x2000
226 #define VR_IMR_LINKSTAT2	0x4000
227 #define VR_IMR_MAGICPACKET	0x8000
228 
229 #define VR_INTRS							\
230 	(VR_IMR_RX_OK|VR_IMR_TX_OK|VR_IMR_RX_NOBUF|			\
231 	VR_IMR_TX_ABRT|VR_IMR_TX_UNDERRUN|VR_IMR_BUSERR|		\
232 	VR_IMR_RX_ERR|VR_ISR_RX_DROPPED)
233 
234 /*
235  * MII status register.
236  */
237 
238 #define VR_MIISTAT_SPEED	0x01
239 #define VR_MIISTAT_LINKFAULT	0x02
240 #define VR_MIISTAT_MGTREADERR	0x04
241 #define VR_MIISTAT_MIIERR	0x08
242 #define VR_MIISTAT_PHYOPT	0x10
243 #define VR_MIISTAT_MDC_SPEED	0x20
244 #define VR_MIISTAT_RSVD		0x40
245 #define VR_MIISTAT_GPIO1POLL	0x80
246 
247 /*
248  * MII command register bits.
249  */
250 #define VR_MIICMD_CLK		0x01
251 #define VR_MIICMD_DATAOUT	0x02
252 #define VR_MIICMD_DATAIN	0x04
253 #define VR_MIICMD_DIR		0x08
254 #define VR_MIICMD_DIRECTPGM	0x10
255 #define VR_MIICMD_WRITE_ENB	0x20
256 #define VR_MIICMD_READ_ENB	0x40
257 #define VR_MIICMD_AUTOPOLL	0x80
258 
259 /*
260  * EEPROM control bits.
261  */
262 #define VR_EECSR_DATAIN		0x01	/* data out */
263 #define VR_EECSR_DATAOUT	0x02	/* data in */
264 #define VR_EECSR_CLK		0x04	/* clock */
265 #define VR_EECSR_CS		0x08	/* chip select */
266 #define VR_EECSR_DPM		0x10
267 #define VR_EECSR_LOAD		0x20
268 #define VR_EECSR_EMBP		0x40
269 #define VR_EECSR_EEPR		0x80
270 
271 #define VR_EECMD_WRITE		0x140
272 #define VR_EECMD_READ		0x180
273 #define VR_EECMD_ERASE		0x1c0
274 
275 /*
276  * Test register bits.
277  */
278 #define VR_TEST_TEST0		0x01
279 #define VR_TEST_TEST1		0x02
280 #define VR_TEST_TEST2		0x04
281 #define VR_TEST_TSTUD		0x08
282 #define VR_TEST_TSTOV		0x10
283 #define VR_TEST_BKOFF		0x20
284 #define VR_TEST_FCOL		0x40
285 #define VR_TEST_HBDES		0x80
286 
287 /*
288  * Config A register bits.
289  */
290 #define VR_CFG_GPIO2OUTENB	0x01
291 #define VR_CFG_GPIO2OUT		0x02	/* gen. purp. pin */
292 #define VR_CFG_GPIO2IN		0x04	/* gen. purp. pin */
293 #define VR_CFG_AUTOOPT		0x08	/* enable rx/tx autopoll */
294 #define VR_CFG_MIIOPT		0x10
295 #define VR_CFG_MMIENB		0x20	/* memory mapped mode enb */
296 #define VR_CFG_JUMPER		0x40	/* PHY and oper. mode select */
297 #define VR_CFG_EELOAD		0x80	/* enable EEPROM programming */
298 
299 /*
300  * Config B register bits.
301  */
302 #define VR_CFG_LATMENB		0x01	/* larency timer effect enb. */
303 #define VR_CFG_MRREADWAIT	0x02
304 #define VR_CFG_MRWRITEWAIT	0x04
305 #define VR_CFG_RX_ARB		0x08
306 #define VR_CFG_TX_ARB		0x10
307 #define VR_CFG_READMULTI	0x20
308 #define VR_CFG_TX_PACE		0x40
309 #define VR_CFG_TX_QDIS		0x80
310 
311 /*
312  * Config C register bits.
313  */
314 #define VR_CFG_ROMSEL0		0x01
315 #define VR_CFG_ROMSEL1		0x02
316 #define VR_CFG_ROMSEL2		0x04
317 #define VR_CFG_ROMTIMESEL	0x08
318 #define VR_CFG_RSVD0		0x10
319 #define VR_CFG_ROMDLY		0x20
320 #define VR_CFG_ROMOPT		0x40
321 #define VR_CFG_RSVD1		0x80
322 
323 /*
324  * Config D register bits.
325  */
326 #define VR_CFG_BACKOFFOPT	0x01
327 #define VR_CFG_BACKOFFMOD	0x02
328 #define VR_CFG_CAPEFFECT	0x04
329 #define VR_CFG_BACKOFFRAND	0x08
330 #define VR_CFG_MAGICKPACKET	0x10
331 #define VR_CFG_PCIREADLINE	0x20
332 #define VR_CFG_DIAG		0x40
333 #define VR_CFG_GPIOEN		0x80
334 
335 /* Sticky HW bits */
336 #define VR_STICKHW_DS0		0x01
337 #define VR_STICKHW_DS1		0x02
338 #define VR_STICKHW_WOL_ENB	0x04
339 #define VR_STICKHW_WOL_STS	0x08
340 #define VR_STICKHW_LEGWOL_ENB	0x80
341 
342 /*
343  * BCR0 register bits. (At least for the VT6102 chip.)
344  */
345 #define VR_BCR0_DMA_LENGTH	0x07
346 
347 #define VR_BCR0_DMA_32BYTES	0x00
348 #define VR_BCR0_DMA_64BYTES	0x01
349 #define VR_BCR0_DMA_128BYTES	0x02
350 #define VR_BCR0_DMA_256BYTES	0x03
351 #define VR_BCR0_DMA_512BYTES	0x04
352 #define VR_BCR0_DMA_1024BYTES	0x05
353 #define VR_BCR0_DMA_STORENFWD	0x07
354 
355 #define VR_BCR0_RX_THRESH	0x38
356 
357 #define VR_BCR0_RXTHRESHCFG	0x00
358 #define VR_BCR0_RXTHRESH64BYTES	0x08
359 #define VR_BCR0_RXTHRESH128BYTES 0x10
360 #define VR_BCR0_RXTHRESH256BYTES 0x18
361 #define VR_BCR0_RXTHRESH512BYTES 0x20
362 #define VR_BCR0_RXTHRESH1024BYTES 0x28
363 #define VR_BCR0_RXTHRESHSTORENFWD 0x38
364 #define VR_BCR0_EXTLED		0x40
365 #define VR_BCR0_MED2		0x80
366 
367 /*
368  * BCR1 register bits. (At least for the VT6102 chip.)
369  */
370 #define VR_BCR1_POT0		0x01
371 #define VR_BCR1_POT1		0x02
372 #define VR_BCR1_POT2		0x04
373 #define VR_BCR1_TX_THRESH	0x38
374 #define VR_BCR1_TXTHRESHCFG	0x00
375 #define VR_BCR1_TXTHRESH64BYTES	0x08
376 #define VR_BCR1_TXTHRESH128BYTES 0x10
377 #define VR_BCR1_TXTHRESH256BYTES 0x18
378 #define VR_BCR1_TXTHRESH512BYTES 0x20
379 #define VR_BCR1_TXTHRESH1024BYTES 0x28
380 #define VR_BCR1_TXTHRESHSTORENFWD 0x38
381 #define	VR_BCR1_VLANFILT_ENB	0x80	/* VT6105M */
382 
383 /*
384  * CAMCTL register bits. (VT6105M only)
385  */
386 #define	VR_CAMCTL_ENA		0x01
387 #define	VR_CAMCTL_VLAN		0x02
388 #define	VR_CAMCTL_MCAST		0x00
389 #define	VR_CAMCTL_WRITE		0x04
390 #define	VR_CAMCTL_READ		0x08
391 
392 #define	VR_CAM_MCAST_CNT	32
393 #define	VR_CAM_VLAN_CNT		32
394 
395 /*
396  * FLOWCR1 register bits. (VT6105LOM, VT6105M only)
397  */
398 #define	VR_FLOWCR1_TXLO4	0x00
399 #define	VR_FLOWCR1_TXLO8	0x40
400 #define	VR_FLOWCR1_TXLO16	0x80
401 #define	VR_FLOWCR1_TXLO24	0xC0
402 #define	VR_FLOWCR1_TXHI24	0x00
403 #define	VR_FLOWCR1_TXHI32	0x10
404 #define	VR_FLOWCR1_TXHI48	0x20
405 #define	VR_FLOWCR1_TXHI64	0x30
406 #define	VR_FLOWCR1_XONXOFF	0x08
407 #define	VR_FLOWCR1_TXPAUSE	0x04
408 #define	VR_FLOWCR1_RXPAUSE	0x02
409 #define	VR_FLOWCR1_HDX		0x01
410 
411 /*
412  * WOLCR register bits. (VT6102 or higher only)
413  */
414 #define	VR_WOLCR_PATTERN0	0x01
415 #define	VR_WOLCR_PATTERN1	0x02
416 #define	VR_WOLCR_PATTERN2	0x04
417 #define	VR_WOLCR_PATTERN3	0x08
418 #define	VR_WOLCR_UCAST		0x10
419 #define	VR_WOLCR_MAGIC		0x20
420 #define	VR_WOLCR_LINKON		0x40
421 #define	VR_WOLCR_LINKOFF	0x80
422 
423 /*
424  * PWRCFG register bits. (VT6102 or higher only)
425  */
426 #define	VR_PWRCFG_WOLEN		0x01
427 #define	VR_PWRCFG_WOLSR		0x02
428 #define	VR_PWRCFG_LEGACY_WOL	0x10
429 #define	VR_PWRCFG_WOLTYPE_PULSE	0x20
430 #define	VR_PWRCFG_SMIITIME	0x80
431 
432 /*
433  * WOLCFG register bits. (VT6102 or higher only)
434  */
435 #define	VR_WOLCFG_PATTERN_PAGE	0x04	/* VT6505 B0 */
436 #define	VR_WOLCFG_SMIIOPT	0x04
437 #define	VR_WOLCFG_SMIIACC	0x08
438 #define	VR_WOLCFG_SAB		0x10
439 #define	VR_WOLCFG_SAM		0x20
440 #define	VR_WOLCFG_SFDX		0x40
441 #define	VR_WOLCFG_PMEOVR	0x80
442 
443 /*
444  * Rhine TX/RX list structure.
445  */
446 
447 struct vr_desc {
448 	uint32_t		vr_status;
449 	uint32_t		vr_ctl;
450 	uint32_t		vr_data;
451 	uint32_t		vr_nextphys;
452 };
453 
454 #define VR_RXSTAT_RXERR		0x00000001
455 #define VR_RXSTAT_CRCERR	0x00000002
456 #define VR_RXSTAT_FRAMEALIGNERR	0x00000004
457 #define VR_RXSTAT_FIFOOFLOW	0x00000008
458 #define VR_RXSTAT_GIANT		0x00000010
459 #define VR_RXSTAT_RUNT		0x00000020
460 #define VR_RXSTAT_BUSERR	0x00000040
461 #define VR_RXSTAT_FRAG		0x00000040	/* 6105M */
462 #define VR_RXSTAT_BUFFERR	0x00000080
463 #define VR_RXSTAT_LASTFRAG	0x00000100
464 #define VR_RXSTAT_FIRSTFRAG	0x00000200
465 #define VR_RXSTAT_RLINK		0x00000400
466 #define VR_RXSTAT_RX_PHYS	0x00000800
467 #define VR_RXSTAT_RX_BROAD	0x00001000
468 #define VR_RXSTAT_RX_MULTI	0x00002000
469 #define VR_RXSTAT_RX_VIDHIT	0x00004000	/* 6105M */
470 #define VR_RXSTAT_RX_OK		0x00008000
471 #define VR_RXSTAT_RXLEN		0x07FF0000
472 #define VR_RXSTAT_RXLEN_EXT	0x78000000
473 #define VR_RXSTAT_OWN		0x80000000
474 
475 #define VR_RXBYTES(x)		((x & VR_RXSTAT_RXLEN) >> 16)
476 #define VR_RXSTAT_ERR_BITS	"\20"				\
477 				"\1RXERR\2CRCERR\3FRAMEALIGN"	\
478 				"\4FIFOOFLOW\5GIANT\6RUNT"	\
479 				"\10BUFERR"
480 
481 #define VR_RXCTL_BUFLEN		0x000007FF
482 #define VR_RXCTL_BUFLEN_EXT	0x00007800
483 #define VR_RXCTL_CHAIN		0x00008000
484 #define	VR_RXCTL_TAG		0x00010000
485 #define	VR_RXCTL_UDP		0x00020000
486 #define	VR_RXCTL_TCP		0x00040000
487 #define	VR_RXCTL_IP		0x00080000
488 #define	VR_RXCTL_TCPUDPOK	0x00100000
489 #define	VR_RXCTL_IPOK		0x00200000
490 #define	VR_RXCTL_SNAPTAG	0x00400000
491 #define	VR_RXCTL_RXLERR		0x00800000	/* 6105M */
492 #define VR_RXCTL_RX_INTR	0x00800000
493 
494 #define VR_RXCTL (VR_RXCTL_CHAIN|VR_RXCTL_RX_INTR)
495 
496 #define VR_TXSTAT_DEFER		0x00000001
497 #define VR_TXSTAT_UNDERRUN	0x00000002
498 #define VR_TXSTAT_COLLCNT	0x00000078
499 #define VR_TXSTAT_SQE		0x00000080
500 #define VR_TXSTAT_ABRT		0x00000100
501 #define VR_TXSTAT_LATECOLL	0x00000200
502 #define VR_TXSTAT_CARRLOST	0x00000400
503 #define VR_TXSTAT_UDF		0x00000800
504 #define VR_TXSTAT_TBUFF		0x00001000
505 #define VR_TXSTAT_BUSERR	0x00002000
506 #define VR_TXSTAT_JABTIMEO	0x00004000
507 #define VR_TXSTAT_ERRSUM	0x00008000
508 #define VR_TXSTAT_OWN		0x80000000
509 
510 #define VR_TXCTL_BUFLEN		0x000007FF
511 #define VR_TXCTL_BUFLEN_EXT	0x00007800
512 #define VR_TXCTL_TLINK		0x00008000
513 #define VR_TXCTL_NOCRC		0x00010000
514 #define VR_TXCTL_INSERTTAG	0x00020000
515 #define VR_TXCTL_IPCSUM		0x00040000
516 #define VR_TXCTL_UDPCSUM	0x00080000
517 #define VR_TXCTL_TCPCSUM	0x00100000
518 #define VR_TXCTL_FIRSTFRAG	0x00200000
519 #define VR_TXCTL_LASTFRAG	0x00400000
520 #define VR_TXCTL_FINT		0x00800000
521 
522 #define VR_MIN_FRAMELEN		60
523 
524 #define VR_FLAG_FORCEDELAY	1
525 #define VR_FLAG_SCHEDDELAY	2
526 #define VR_FLAG_DELAYTIMEO	3
527 
528 #define VR_TIMEOUT		1000
529 #define VR_MII_TIMEOUT		10000
530 
531 #define	VR_PHYADDR_MASK		0x1f
532 
533 /*
534  * General constants that are fun to know.
535  *
536  * VIA vendor ID
537  */
538 #define	VIA_VENDORID			0x1106
539 
540 /*
541  * VIA Rhine device IDs.
542  */
543 #define	VIA_DEVICEID_RHINE		0x3043
544 #define VIA_DEVICEID_RHINE_II		0x6100
545 #define VIA_DEVICEID_RHINE_II_2		0x3065
546 #define VIA_DEVICEID_RHINE_III		0x3106
547 #define VIA_DEVICEID_RHINE_III_M	0x3053
548 
549 /*
550  * Delta Electronics device ID.
551  */
552 #define DELTA_VENDORID			0x1500
553 
554 /*
555  * Delta device IDs.
556  */
557 #define DELTA_DEVICEID_RHINE_II		0x1320
558 
559 /*
560  * Addtron vendor ID.
561  */
562 #define ADDTRON_VENDORID		0x4033
563 
564 /*
565  * Addtron device IDs.
566  */
567 #define ADDTRON_DEVICEID_RHINE_II	0x1320
568 
569 /*
570  * VIA Rhine revision IDs
571  */
572 
573 #define REV_ID_VT3043_E			0x04
574 #define REV_ID_VT3071_A			0x20
575 #define REV_ID_VT3071_B			0x21
576 #define REV_ID_VT6102_A			0x40
577 #define REV_ID_VT6102_B			0x41
578 #define REV_ID_VT6102_C			0x42
579 #define REV_ID_VT6102_APOLLO		0x74
580 #define REV_ID_VT6105_A0		0x80
581 #define REV_ID_VT6105_B0		0x83
582 #define REV_ID_VT6105_LOM		0x8A
583 #define REV_ID_VT6107_A0		0x8C
584 #define REV_ID_VT6107_A1		0x8D
585 #define REV_ID_VT6105M_A0		0x90
586 #define REV_ID_VT6105M_B1		0x94
587 
588 /*
589  * PCI low memory base and low I/O base register, and
590  * other PCI registers.
591  */
592 
593 #define VR_PCI_VENDOR_ID	0x00
594 #define VR_PCI_DEVICE_ID	0x02
595 #define VR_PCI_COMMAND		0x04
596 #define VR_PCI_STATUS		0x06
597 #define VR_PCI_REVID		0x08
598 #define VR_PCI_CLASSCODE	0x09
599 #define VR_PCI_LATENCY_TIMER	0x0D
600 #define VR_PCI_HEADER_TYPE	0x0E
601 #define VR_PCI_LOIO		0x10
602 #define VR_PCI_LOMEM		0x14
603 #define VR_PCI_BIOSROM		0x30
604 #define VR_PCI_INTLINE		0x3C
605 #define VR_PCI_INTPIN		0x3D
606 #define VR_PCI_MINGNT		0x3E
607 #define VR_PCI_MINLAT		0x0F
608 #define VR_PCI_RESETOPT		0x48
609 #define VR_PCI_EEPROM_DATA	0x4C
610 #define VR_PCI_MODE0		0x50
611 #define VR_PCI_MODE2		0x52
612 #define VR_PCI_MODE3		0x53
613 
614 #define VR_MODE2_PCEROPT	0x80 /* VT6102 only */
615 #define VR_MODE2_DISABT		0x40
616 #define VR_MODE2_MRDPL		0x08 /* VT6107A1 and above */
617 #define VR_MODE2_MODE10T	0x02
618 
619 #define VR_MODE3_XONOPT		0x80
620 #define VR_MODE3_TPACEN		0x40
621 #define VR_MODE3_BACKOPT	0x20
622 #define VR_MODE3_DLTSEL		0x10
623 #define VR_MODE3_MIIDMY		0x08
624 #define VR_MODE3_MIION		0x04
625 
626 /* power management registers */
627 #define VR_PCI_CAPID		0xDC /* 8 bits */
628 #define VR_PCI_NEXTPTR		0xDD /* 8 bits */
629 #define VR_PCI_PWRMGMTCAP	0xDE /* 16 bits */
630 #define VR_PCI_PWRMGMTCTRL	0xE0 /* 16 bits */
631 
632 #define VR_PSTATE_MASK		0x0003
633 #define VR_PSTATE_D0		0x0000
634 #define VR_PSTATE_D1		0x0002
635 #define VR_PSTATE_D2		0x0002
636 #define VR_PSTATE_D3		0x0003
637 #define VR_PME_EN		0x0010
638 #define VR_PME_STATUS		0x8000
639 
640 #define VR_RX_RING_CNT		128
641 #define VR_TX_RING_CNT		128
642 #define	VR_TX_RING_SIZE		sizeof(struct vr_desc) * VR_TX_RING_CNT
643 #define	VR_RX_RING_SIZE		sizeof(struct vr_desc) * VR_RX_RING_CNT
644 #define	VR_RING_ALIGN		sizeof(struct vr_desc)
645 #define	VR_RX_ALIGN		sizeof(uint32_t)
646 #define VR_MAXFRAGS		8
647 #define	VR_TX_INTR_THRESH	8
648 
649 #define	VR_ADDR_LO(x)		((uint64_t)(x) & 0xffffffff)
650 #define	VR_ADDR_HI(x)		((uint64_t)(x) >> 32)
651 #define	VR_TX_RING_ADDR(sc, i)	\
652     ((sc)->vr_rdata.vr_tx_ring_paddr + sizeof(struct vr_desc) * (i))
653 #define	VR_RX_RING_ADDR(sc, i)	\
654     ((sc)->vr_rdata.vr_rx_ring_paddr + sizeof(struct vr_desc) * (i))
655 #define	VR_INC(x,y)		(x) = (((x) + 1) % y)
656 
657 struct vr_txdesc {
658 	struct mbuf	*tx_m;
659 	bus_dmamap_t	tx_dmamap;
660 };
661 
662 struct vr_rxdesc {
663 	struct mbuf	*rx_m;
664 	bus_dmamap_t	rx_dmamap;
665 	struct vr_desc	*desc;
666 };
667 
668 struct vr_chain_data {
669 	bus_dma_tag_t		vr_parent_tag;
670 	bus_dma_tag_t		vr_tx_tag;
671 	struct vr_txdesc	vr_txdesc[VR_TX_RING_CNT];
672 	bus_dma_tag_t		vr_rx_tag;
673 	struct vr_rxdesc	vr_rxdesc[VR_RX_RING_CNT];
674 	bus_dma_tag_t		vr_tx_ring_tag;
675 	bus_dma_tag_t		vr_rx_ring_tag;
676 	bus_dmamap_t		vr_tx_ring_map;
677 	bus_dmamap_t		vr_rx_ring_map;
678 	bus_dmamap_t		vr_rx_sparemap;
679 	int			vr_tx_pkts;
680 	int			vr_tx_prod;
681 	int			vr_tx_cons;
682 	int			vr_tx_cnt;
683 	int			vr_rx_cons;
684 };
685 
686 struct vr_ring_data {
687 	struct vr_desc		*vr_rx_ring;
688 	struct vr_desc		*vr_tx_ring;
689 	bus_addr_t		vr_rx_ring_paddr;
690 	bus_addr_t		vr_tx_ring_paddr;
691 };
692 
693 struct vr_statistics {
694 	uint64_t		tx_ok;
695 	uint64_t		rx_ok;
696 	uint32_t		tx_errors;
697 	uint32_t		rx_errors;
698 	uint32_t		rx_no_buffers;
699 	uint32_t		rx_no_mbufs;
700 	uint32_t		rx_crc_errors;
701 	uint32_t		rx_alignment;
702 	uint32_t		rx_fifo_overflows;
703 	uint32_t		rx_giants;
704 	uint32_t		rx_runts;
705 	uint32_t		tx_abort;
706 	uint32_t		tx_collisions;
707 	uint32_t		tx_late_collisions;
708 	uint32_t		tx_underrun;
709 	uint32_t		bus_errors;
710 	uint32_t		num_restart;
711 };
712 
713 struct vr_softc {
714 	struct ifnet		*vr_ifp;	/* interface info */
715 	device_t		vr_dev;
716 	struct resource		*vr_res;
717 	int			vr_res_id;
718 	int			vr_res_type;
719 	struct resource		*vr_irq;
720 	void			*vr_intrhand;
721 	device_t		vr_miibus;
722 	uint8_t			vr_revid;	/* Rhine chip revision */
723 	int			vr_flags;	/* See VR_F_* below */
724 #define	VR_F_RESTART		0x0001		/* Restart unit on next tick */
725 #define	VR_F_TXPAUSE		0x0010
726 #define	VR_F_SUSPENDED		0x2000
727 #define	VR_F_DETACHED		0x4000
728 #define	VR_F_LINK		0x8000
729 	int			vr_if_flags;
730 	struct vr_chain_data	vr_cdata;
731 	struct vr_ring_data	vr_rdata;
732 	struct vr_statistics	vr_stat;
733 	struct callout		vr_stat_callout;
734 	struct mtx		vr_mtx;
735 	int			vr_quirks;
736 	int			vr_watchdog_timer;
737 	int			vr_txthresh;
738 #ifdef DEVICE_POLLING
739 	int			rxcycles;
740 #endif
741 	struct task		vr_inttask;
742 };
743 
744 #define	VR_LOCK(_sc)		mtx_lock(&(_sc)->vr_mtx)
745 #define	VR_UNLOCK(_sc)		mtx_unlock(&(_sc)->vr_mtx)
746 #define	VR_LOCK_ASSERT(_sc)	mtx_assert(&(_sc)->vr_mtx, MA_OWNED)
747 
748 /*
749  * register space access macros
750  */
751 #define CSR_WRITE_4(sc, reg, val)	bus_write_4(sc->vr_res, reg, val)
752 #define CSR_WRITE_2(sc, reg, val)	bus_write_2(sc->vr_res, reg, val)
753 #define CSR_WRITE_1(sc, reg, val)	bus_write_1(sc->vr_res, reg, val)
754 
755 #define CSR_READ_2(sc, reg)		bus_read_2(sc->vr_res, reg)
756 #define CSR_READ_1(sc, reg)		bus_read_1(sc->vr_res, reg)
757 
758 #define VR_SETBIT(sc, reg, x) CSR_WRITE_1(sc, reg, CSR_READ_1(sc, reg) | (x))
759 #define VR_CLRBIT(sc, reg, x) CSR_WRITE_1(sc, reg, CSR_READ_1(sc, reg) & ~(x))
760 
761 #define VR_SETBIT16(sc, reg, x) CSR_WRITE_2(sc, reg, CSR_READ_2(sc, reg) | (x))
762 #define VR_CLRBIT16(sc, reg, x) CSR_WRITE_2(sc, reg, CSR_READ_2(sc, reg) & ~(x))
763 
764 #define	VR_MCAST_CAM	0
765 #define	VR_VLAN_CAM	1
766