xref: /freebsd/sys/dev/sis/if_sisreg.h (revision 0782240958117692ab9861abb5483c9e64f6bc39)
1 /*-
2  * Copyright (c) 1997, 1998, 1999
3  *	Bill Paul <wpaul@ee.columbia.edu>.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by Bill Paul.
16  * 4. Neither the name of the author nor the names of any co-contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30  * THE POSSIBILITY OF SUCH DAMAGE.
31  *
32  * $FreeBSD$
33  */
34 
35 /*
36  * Register definitions for the SiS 900 and SiS 7016 chipsets. The
37  * 7016 is actually an older chip and some of its registers differ
38  * from the 900, however the core operational registers are the same:
39  * the differences lie in the OnNow/Wake on LAN stuff which we don't
40  * use anyway. The 7016 needs an external MII compliant PHY while the
41  * SiS 900 has one built in. All registers are 32-bits wide.
42  */
43 
44 /* Registers common to SiS 900 and SiS 7016 */
45 #define SIS_CSR			0x00
46 #define SIS_CFG			0x04
47 #define SIS_EECTL		0x08
48 #define SIS_PCICTL		0x0C
49 #define SIS_ISR			0x10
50 #define SIS_IMR			0x14
51 #define SIS_IER			0x18
52 #define SIS_PHYCTL		0x1C
53 #define SIS_TX_LISTPTR		0x20
54 #define SIS_TX_CFG		0x24
55 #define SIS_RX_LISTPTR		0x30
56 #define SIS_RX_CFG		0x34
57 #define SIS_FLOWCTL		0x38
58 #define SIS_RXFILT_CTL		0x48
59 #define SIS_RXFILT_DATA		0x4C
60 #define SIS_PWRMAN_CTL		0xB0
61 #define SIS_PWERMAN_WKUP_EVENT	0xB4
62 #define SIS_WKUP_FRAME_CRC	0xBC
63 #define SIS_WKUP_FRAME_MASK0	0xC0
64 #define SIS_WKUP_FRAME_MASKXX	0xEC
65 
66 /* SiS 7016 specific registers */
67 #define SIS_SILICON_REV		0x5C
68 #define SIS_MIB_CTL0		0x60
69 #define SIS_MIB_CTL1		0x64
70 #define SIS_MIB_CTL2		0x68
71 #define SIS_MIB_CTL3		0x6C
72 #define SIS_MIB			0x80
73 #define SIS_LINKSTS		0xA0
74 #define SIS_TIMEUNIT		0xA4
75 #define SIS_GPIO		0xB8
76 
77 /* NS DP83815/6 registers */
78 #define NS_IHR			0x1C
79 #define NS_CLKRUN		0x3C
80 #define	NS_WCSR			0x40
81 #define NS_SRR			0x58
82 #define NS_BMCR			0x80
83 #define NS_BMSR			0x84
84 #define NS_PHYIDR1		0x88
85 #define NS_PHYIDR2		0x8C
86 #define NS_ANAR			0x90
87 #define NS_ANLPAR		0x94
88 #define NS_ANER			0x98
89 #define NS_ANNPTR		0x9C
90 
91 #define NS_PHY_CR		0xE4
92 #define NS_PHY_10BTSCR		0xE8
93 #define NS_PHY_PAGE		0xCC
94 #define NS_PHY_EXTCFG		0xF0
95 #define NS_PHY_DSPCFG		0xF4
96 #define NS_PHY_SDCFG		0xF8
97 #define NS_PHY_TDATA		0xFC
98 
99 #define NS_CLKRUN_PMESTS	0x00008000
100 #define NS_CLKRUN_PMEENB	0x00000100
101 #define NS_CLNRUN_CLKRUN_ENB	0x00000001
102 
103 #define	NS_WCSR_WAKE_PHYINTR	0x00000001
104 #define	NS_WCSR_WAKE_UCAST	0x00000002
105 #define	NS_WCSR_WAKE_MCAST	0x00000004
106 #define	NS_WCSR_WAKE_BCAST	0x00000008
107 #define	NS_WCSR_WAKE_ARP	0x00000010
108 #define	NS_WCSR_WAKE_PATTERN0	0x00000020
109 #define	NS_WCSR_WAKE_PATTERN1	0x00000040
110 #define	NS_WCSR_WAKE_PATTERN2	0x00000080
111 #define	NS_WCSR_WAKE_PATTERN3	0x00000100
112 #define	NS_WCSR_WAKE_MAGIC	0x00000200
113 #define	NS_WCSR_WAKE_MAGIC_SEC	0x00000400
114 #define	NS_WCSR_DET_MAGIC_SECH	0x00100000
115 #define	NS_WCSR_DET_PHYINTR	0x00400000
116 #define	NS_WCSR_DET_UCAST	0x00800000
117 #define	NS_WCSR_DET_MCAST	0x01000000
118 #define	NS_WCSR_DET_BCAST	0x02000000
119 #define	NS_WCSR_DET_ARP		0x04000000
120 #define	NS_WCSR_DET_PATTERN0	0x08000000
121 #define	NS_WCSR_DET_PATTERN1	0x10000000
122 #define	NS_WCSR_DET_PATTERN2	0x20000000
123 #define	NS_WCSR_DET_PATTERN3	0x40000000
124 #define	NS_WCSR_DET_MAGIC	0x80000000
125 
126 /* NS silicon revisions */
127 #define NS_SRR_15C		0x302
128 #define NS_SRR_15D		0x403
129 #define NS_SRR_16A		0x505
130 
131 #define SIS_CSR_TX_ENABLE	0x00000001
132 #define SIS_CSR_TX_DISABLE	0x00000002
133 #define SIS_CSR_RX_ENABLE	0x00000004
134 #define SIS_CSR_RX_DISABLE	0x00000008
135 #define SIS_CSR_TX_RESET	0x00000010
136 #define SIS_CSR_RX_RESET	0x00000020
137 #define SIS_CSR_SOFTINTR	0x00000080
138 #define SIS_CSR_RESET		0x00000100
139 #define SIS_CSR_ACCESS_MODE	0x00000200
140 #define SIS_CSR_RELOAD		0x00000400
141 
142 #define SIS_CFG_BIGENDIAN	0x00000001
143 #define SIS_CFG_PERR_DETECT	0x00000008
144 #define SIS_CFG_DEFER_DISABLE	0x00000010
145 #define SIS_CFG_OUTOFWIN_TIMER	0x00000020
146 #define SIS_CFG_SINGLE_BACKOFF	0x00000040
147 #define SIS_CFG_PCIREQ_ALG	0x00000080
148 #define SIS_CFG_FAIR_BACKOFF	0x00000200 /* 635 & 900B Specific */
149 #define SIS_CFG_RND_CNT	0x00000400 /* 635 & 900B Specific */
150 #define SIS_CFG_EDB_MASTER_EN	0x00002000
151 
152 #define SIS_EECTL_DIN		0x00000001
153 #define SIS_EECTL_DOUT		0x00000002
154 #define SIS_EECTL_CLK		0x00000004
155 #define SIS_EECTL_CSEL		0x00000008
156 
157 #define	SIS_MII_CLK		0x00000040
158 #define	SIS_MII_DIR		0x00000020
159 #define	SIS_MII_DATA		0x00000010
160 
161 #define SIS_EECMD_WRITE		0x140
162 #define SIS_EECMD_READ		0x180
163 #define SIS_EECMD_ERASE		0x1c0
164 
165 /*
166  * EEPROM Commands for SiS96x
167  * chipsets.
168  */
169 #define SIS_EECMD_REQ		0x00000400
170 #define SIS_EECMD_DONE		0x00000200
171 #define SIS_EECMD_GNT		0x00000100
172 
173 #define SIS_EE_NODEADDR		0x8
174 #define NS_EE_NODEADDR		0x6
175 
176 #define SIS_PCICTL_SRAMADDR	0x0000001F
177 #define SIS_PCICTL_RAMTSTENB	0x00000020
178 #define SIS_PCICTL_TXTSTENB	0x00000040
179 #define SIS_PCICTL_RXTSTENB	0x00000080
180 #define SIS_PCICTL_BMTSTENB	0x00000200
181 #define SIS_PCICTL_RAMADDR	0x001F0000
182 #define SIS_PCICTL_ROMTIME	0x0F000000
183 #define SIS_PCICTL_DISCTEST	0x40000000
184 
185 #define SIS_ISR_RX_OK		0x00000001
186 #define SIS_ISR_RX_DESC_OK	0x00000002
187 #define SIS_ISR_RX_ERR		0x00000004
188 #define SIS_ISR_RX_EARLY	0x00000008
189 #define SIS_ISR_RX_IDLE		0x00000010
190 #define SIS_ISR_RX_OFLOW	0x00000020
191 #define SIS_ISR_TX_OK		0x00000040
192 #define SIS_ISR_TX_DESC_OK	0x00000080
193 #define SIS_ISR_TX_ERR		0x00000100
194 #define SIS_ISR_TX_IDLE		0x00000200
195 #define SIS_ISR_TX_UFLOW	0x00000400
196 #define SIS_ISR_SOFTINTR	0x00000800
197 #define SIS_ISR_HIBITS		0x00008000
198 #define SIS_ISR_RX_FIFO_OFLOW	0x00010000
199 #define SIS_ISR_TGT_ABRT	0x00100000
200 #define SIS_ISR_BM_ABRT		0x00200000
201 #define SIS_ISR_SYSERR		0x00400000
202 #define SIS_ISR_PARITY_ERR	0x00800000
203 #define SIS_ISR_RX_RESET_DONE	0x01000000
204 #define SIS_ISR_TX_RESET_DONE	0x02000000
205 #define SIS_ISR_TX_PAUSE_START	0x04000000
206 #define SIS_ISR_TX_PAUSE_DONE	0x08000000
207 #define SIS_ISR_WAKE_EVENT	0x10000000
208 
209 #define SIS_IMR_RX_OK		0x00000001
210 #define SIS_IMR_RX_DESC_OK	0x00000002
211 #define SIS_IMR_RX_ERR		0x00000004
212 #define SIS_IMR_RX_EARLY	0x00000008
213 #define SIS_IMR_RX_IDLE		0x00000010
214 #define SIS_IMR_RX_OFLOW	0x00000020
215 #define SIS_IMR_TX_OK		0x00000040
216 #define SIS_IMR_TX_DESC_OK	0x00000080
217 #define SIS_IMR_TX_ERR		0x00000100
218 #define SIS_IMR_TX_IDLE		0x00000200
219 #define SIS_IMR_TX_UFLOW	0x00000400
220 #define SIS_IMR_SOFTINTR	0x00000800
221 #define SIS_IMR_HIBITS		0x00008000
222 #define SIS_IMR_RX_FIFO_OFLOW	0x00010000
223 #define SIS_IMR_TGT_ABRT	0x00100000
224 #define SIS_IMR_BM_ABRT		0x00200000
225 #define SIS_IMR_SYSERR		0x00400000
226 #define SIS_IMR_PARITY_ERR	0x00800000
227 #define SIS_IMR_RX_RESET_DONE	0x01000000
228 #define SIS_IMR_TX_RESET_DONE	0x02000000
229 #define SIS_IMR_TX_PAUSE_START	0x04000000
230 #define SIS_IMR_TX_PAUSE_DONE	0x08000000
231 #define SIS_IMR_WAKE_EVENT	0x10000000
232 
233 #define SIS_INTRS	\
234 	(SIS_IMR_RX_OFLOW|SIS_IMR_TX_UFLOW|SIS_IMR_TX_OK|\
235 	 SIS_IMR_TX_IDLE|SIS_IMR_RX_OK|SIS_IMR_RX_ERR|\
236 	 SIS_IMR_RX_IDLE|\
237 	 SIS_IMR_SYSERR)
238 
239 #define SIS_IER_INTRENB		0x00000001
240 
241 #define SIS_PHYCTL_ACCESS	0x00000010
242 #define SIS_PHYCTL_OP		0x00000020
243 #define SIS_PHYCTL_REGADDR	0x000007C0
244 #define SIS_PHYCTL_PHYADDR	0x0000F800
245 #define SIS_PHYCTL_PHYDATA	0xFFFF0000
246 
247 #define SIS_PHYOP_READ		0x00000020
248 #define SIS_PHYOP_WRITE		0x00000000
249 
250 #define SIS_TXCFG_DRAIN_THRESH	0x0000003F /* 32-byte units */
251 #define SIS_TXCFG_FILL_THRESH	0x00003F00 /* 32-byte units */
252 #define SIS_TXCFG_DMABURST	0x00700000
253 #define SIS_TXCFG_AUTOPAD	0x10000000
254 #define SIS_TXCFG_LOOPBK	0x20000000
255 #define SIS_TXCFG_IGN_HBEAT	0x40000000
256 #define SIS_TXCFG_IGN_CARR	0x80000000
257 
258 #define SIS_TXCFG_DRAIN(x)	(((x) >> 5) & SIS_TXCFG_DRAIN_THRESH)
259 #define SIS_TXCFG_FILL(x)	((((x) >> 5) << 8) & SIS_TXCFG_FILL_THRESH)
260 
261 #define SIS_TXDMA_512BYTES	0x00000000
262 #define SIS_TXDMA_4BYTES	0x00100000
263 #define SIS_TXDMA_8BYTES	0x00200000
264 #define SIS_TXDMA_16BYTES	0x00300000
265 #define SIS_TXDMA_32BYTES	0x00400000
266 #define SIS_TXDMA_64BYTES	0x00500000
267 #define SIS_TXDMA_128BYTES	0x00600000
268 #define SIS_TXDMA_256BYTES	0x00700000
269 
270 #define SIS_TXCFG_100	\
271 	(SIS_TXDMA_64BYTES|SIS_TXCFG_AUTOPAD|\
272 	 SIS_TXCFG_FILL(64)|SIS_TXCFG_DRAIN(1536))
273 
274 #define SIS_TXCFG_10	\
275 	(SIS_TXDMA_32BYTES|SIS_TXCFG_AUTOPAD|\
276 	 SIS_TXCFG_FILL(64)|SIS_TXCFG_DRAIN(1536))
277 
278 #define SIS_RXCFG_DRAIN_THRESH	0x0000003E /* 8-byte units */
279 #define SIS_TXCFG_MPII03D	0x00040000 /* "Must be 1" */
280 #define SIS_RXCFG_DMABURST	0x00700000
281 #define SIS_RXCFG_RX_JABBER	0x08000000
282 #define SIS_RXCFG_RX_TXPKTS	0x10000000
283 #define SIS_RXCFG_RX_RUNTS	0x40000000
284 #define SIS_RXCFG_RX_GIANTS	0x80000000
285 
286 #define SIS_RXCFG_DRAIN(x)	((((x) >> 3) << 1) & SIS_RXCFG_DRAIN_THRESH)
287 
288 #define SIS_RXDMA_512BYTES	0x00000000
289 #define SIS_RXDMA_4BYTES	0x00100000
290 #define SIS_RXDMA_8BYTES	0x00200000
291 #define SIS_RXDMA_16BYTES	0x00300000
292 #define SIS_RXDMA_32BYTES	0x00400000
293 #define SIS_RXDMA_64BYTES	0x00500000
294 #define SIS_RXDMA_128BYTES	0x00600000
295 #define SIS_RXDMA_256BYTES	0x00700000
296 
297 #define SIS_RXCFG256 \
298 	(SIS_RXCFG_DRAIN(64)|SIS_RXDMA_256BYTES)
299 #define SIS_RXCFG64 \
300 	(SIS_RXCFG_DRAIN(64)|SIS_RXDMA_64BYTES)
301 
302 #define SIS_RXFILTCTL_ADDR	0x000F0000
303 #define NS_RXFILTCTL_MCHASH	0x00200000
304 #define NS_RXFILTCTL_ARP	0x00400000
305 #define NS_RXFILTCTL_PERFECT	0x08000000
306 #define SIS_RXFILTCTL_ALLPHYS	0x10000000
307 #define SIS_RXFILTCTL_ALLMULTI	0x20000000
308 #define SIS_RXFILTCTL_BROAD	0x40000000
309 #define SIS_RXFILTCTL_ENABLE	0x80000000
310 
311 #define SIS_FILTADDR_PAR0	0x00000000
312 #define SIS_FILTADDR_PAR1	0x00010000
313 #define SIS_FILTADDR_PAR2	0x00020000
314 #define SIS_FILTADDR_MAR0	0x00040000
315 #define SIS_FILTADDR_MAR1	0x00050000
316 #define SIS_FILTADDR_MAR2	0x00060000
317 #define SIS_FILTADDR_MAR3	0x00070000
318 #define SIS_FILTADDR_MAR4	0x00080000
319 #define SIS_FILTADDR_MAR5	0x00090000
320 #define SIS_FILTADDR_MAR6	0x000A0000
321 #define SIS_FILTADDR_MAR7	0x000B0000
322 
323 #define NS_FILTADDR_PAR0	0x00000000
324 #define NS_FILTADDR_PAR1	0x00000002
325 #define NS_FILTADDR_PAR2	0x00000004
326 
327 #define NS_FILTADDR_FMEM_LO	0x00000200
328 #define NS_FILTADDR_FMEM_HI	0x000003FE
329 
330 #define	SIS_PWRMAN_WOL_LINK_OFF	0x00000001
331 #define	SIS_PWRMAN_WOL_LINK_ON	0x00000002
332 #define	SIS_PWRMAN_WOL_MAGIC	0x00000400
333 
334 /*
335  * TX/RX DMA descriptor structures.
336  */
337 struct sis_desc {
338 	/* SiS hardware descriptor section */
339 	uint32_t		sis_next;
340 	volatile uint32_t	sis_cmdsts;
341 	volatile uint32_t	sis_ptr;
342 };
343 
344 #define SIS_CMDSTS_BUFLEN	0x00000FFF
345 #define SIS_CMDSTS_PKT_OK	0x08000000
346 #define SIS_CMDSTS_CRC		0x10000000
347 #define SIS_CMDSTS_INTR		0x20000000
348 #define SIS_CMDSTS_MORE		0x40000000
349 #define SIS_CMDSTS_OWN		0x80000000
350 
351 #define SIS_RXSTAT_COLL		0x00010000
352 #define SIS_RXSTAT_LOOPBK	0x00020000
353 #define SIS_RXSTAT_ALIGNERR	0x00040000
354 #define SIS_RXSTAT_CRCERR	0x00080000
355 #define SIS_RXSTAT_SYMBOLERR	0x00100000
356 #define SIS_RXSTAT_RUNT		0x00200000
357 #define SIS_RXSTAT_GIANT	0x00400000
358 #define SIS_RXSTAT_DSTCLASS	0x01800000
359 #define SIS_RXSTAT_OVERRUN	0x02000000
360 #define SIS_RXSTAT_RX_ABORT	0x04000000
361 
362 #define	SIS_RXSTAT_ERROR(x)						\
363 	((x) & (SIS_RXSTAT_RX_ABORT | SIS_RXSTAT_OVERRUN |		\
364 	SIS_RXSTAT_GIANT | SIS_RXSTAT_SYMBOLERR | SIS_RXSTAT_RUNT |	\
365 	SIS_RXSTAT_CRCERR | SIS_RXSTAT_ALIGNERR))
366 
367 #define SIS_DSTCLASS_REJECT	0x00000000
368 #define SIS_DSTCLASS_UNICAST	0x00800000
369 #define SIS_DSTCLASS_MULTICAST	0x01000000
370 #define SIS_DSTCLASS_BROADCAST	0x02000000
371 
372 #define SIS_TXSTAT_COLLCNT	0x000F0000
373 #define SIS_TXSTAT_EXCESSCOLLS	0x00100000
374 #define SIS_TXSTAT_OUTOFWINCOLL	0x00200000
375 #define SIS_TXSTAT_EXCESS_DEFER	0x00400000
376 #define SIS_TXSTAT_DEFERED	0x00800000
377 #define SIS_TXSTAT_CARR_LOST	0x01000000
378 #define SIS_TXSTAT_UNDERRUN	0x02000000
379 #define SIS_TXSTAT_TX_ABORT	0x04000000
380 
381 #define	SIS_DESC_ALIGN		16
382 #define	SIS_RX_BUF_ALIGN	4
383 #define	SIS_MAXTXSEGS		16
384 #define SIS_RX_LIST_CNT		64
385 #define SIS_TX_LIST_CNT		128
386 
387 #define SIS_RX_LIST_SZ		SIS_RX_LIST_CNT * sizeof(struct sis_desc)
388 #define SIS_TX_LIST_SZ		SIS_TX_LIST_CNT * sizeof(struct sis_desc)
389 
390 #define	SIS_ADDR_LO(x)		((uint64_t) (x) & 0xffffffff)
391 #define	SIS_ADDR_HI(x)		((uint64_t) (x) >> 32)
392 
393 #define	SIS_RX_RING_ADDR(sc, i)	\
394 	((sc)->sis_rx_paddr + sizeof(struct sis_desc) * (i))
395 #define	SIS_TX_RING_ADDR(sc, i)	\
396 	((sc)->sis_tx_paddr + sizeof(struct sis_desc) * (i))
397 
398 #define	SIS_INC(x, y)		(x) = (x + 1) % (y)
399 
400 /*
401  * SiS PCI vendor ID.
402  */
403 #define SIS_VENDORID		0x1039
404 
405 /*
406  * SiS PCI device IDs
407  */
408 #define SIS_DEVICEID_900	0x0900
409 #define SIS_DEVICEID_7016	0x7016
410 
411 /*
412  * SiS 900 PCI revision codes.
413  */
414 #define SIS_REV_900B		0x0003
415 #define SIS_REV_630A		0x0080
416 #define SIS_REV_630E		0x0081
417 #define SIS_REV_630S		0x0082
418 #define SIS_REV_630EA1		0x0083
419 #define SIS_REV_630ET		0x0084
420 #define SIS_REV_635		0x0090
421 #define SIS_REV_96x		0x0091
422 
423 /*
424  * NatSemi vendor ID
425  */
426 #define NS_VENDORID		0x100B
427 
428 /*
429  * DP83815 device ID
430  */
431 #define NS_DEVICEID_DP83815	0x0020
432 
433 struct sis_type {
434 	uint16_t		sis_vid;
435 	uint16_t		sis_did;
436 	const char		*sis_name;
437 };
438 
439 #define SIS_TYPE_900	1
440 #define SIS_TYPE_7016	2
441 #define SIS_TYPE_83815	3
442 
443 struct sis_txdesc {
444 	struct mbuf		*tx_m;
445 	bus_dmamap_t		tx_dmamap;
446 };
447 
448 struct sis_rxdesc {
449 	struct mbuf		*rx_m;
450 	bus_dmamap_t		rx_dmamap;
451 	struct sis_desc		*rx_desc;
452 };
453 
454 struct sis_softc {
455 	struct ifnet		*sis_ifp;	/* interface info */
456 	struct resource		*sis_res[2];
457 	void			*sis_intrhand;
458 	device_t		sis_dev;
459 	device_t		sis_miibus;
460 	uint8_t			sis_type;
461 	uint8_t			sis_rev;
462 	uint32_t		sis_flags;
463 #define	SIS_FLAG_MANUAL_PAD	0x0800
464 #define	SIS_FLAG_LINK		0x8000
465 	int			sis_manual_pad;
466 	uint32_t		sis_srr;
467 	struct sis_desc		*sis_rx_list;
468 	struct sis_desc		*sis_tx_list;
469 	bus_dma_tag_t		sis_rx_list_tag;
470 	bus_dmamap_t		sis_rx_list_map;
471 	bus_dma_tag_t		sis_tx_list_tag;
472 	bus_dmamap_t		sis_tx_list_map;
473 	bus_dma_tag_t		sis_parent_tag;
474 	bus_dma_tag_t		sis_rx_tag;
475 	bus_dmamap_t		sis_rx_sparemap;
476 	bus_dma_tag_t		sis_tx_tag;
477 	struct sis_rxdesc	sis_rxdesc[SIS_RX_LIST_CNT];
478 	struct sis_txdesc	sis_txdesc[SIS_TX_LIST_CNT];
479 	int			sis_tx_prod;
480 	int			sis_tx_cons;
481 	int			sis_tx_cnt;
482 	int			sis_rx_cons;
483 	bus_addr_t		sis_rx_paddr;
484 	bus_addr_t		sis_tx_paddr;
485 	struct callout		sis_stat_ch;
486 	int			sis_watchdog_timer;
487 	int			sis_if_flags;
488 #ifdef DEVICE_POLLING
489 	int			rxcycles;
490 #endif
491 	struct mtx		sis_mtx;
492 };
493 
494 #define SIS_TIMEOUT		1000
495 #define ETHER_ALIGN		2
496 #define SIS_RXLEN		1536
497 #define SIS_MIN_FRAMELEN	60
498 
499 /*
500  * PCI low memory base and low I/O base register, and
501  * other PCI registers.
502  */
503 
504 #define SIS_PCI_VENDOR_ID	0x00
505 #define SIS_PCI_DEVICE_ID	0x02
506 #define SIS_PCI_COMMAND		0x04
507 #define SIS_PCI_STATUS		0x06
508 #define SIS_PCI_REVID		0x08
509 #define SIS_PCI_CLASSCODE	0x09
510 #define SIS_PCI_CACHELEN	0x0C
511 #define SIS_PCI_LATENCY_TIMER	0x0D
512 #define SIS_PCI_HEADER_TYPE	0x0E
513 #define SIS_PCI_LOIO		0x10
514 #define SIS_PCI_LOMEM		0x14
515 #define SIS_PCI_BIOSROM		0x30
516 #define SIS_PCI_INTLINE		0x3C
517 #define SIS_PCI_INTPIN		0x3D
518 #define SIS_PCI_MINGNT		0x3E
519 #define SIS_PCI_MINLAT		0x0F
520 #define SIS_PCI_RESETOPT	0x48
521 #define SIS_PCI_EEPROM_DATA	0x4C
522 
523 /* power management registers */
524 #define SIS_PCI_CAPID		0x50 /* 8 bits */
525 #define SIS_PCI_NEXTPTR		0x51 /* 8 bits */
526 #define SIS_PCI_PWRMGMTCAP	0x52 /* 16 bits */
527 #define SIS_PCI_PWRMGMTCTRL	0x54 /* 16 bits */
528 
529 #define SIS_PSTATE_MASK		0x0003
530 #define SIS_PSTATE_D0		0x0000
531 #define SIS_PSTATE_D1		0x0001
532 #define SIS_PSTATE_D2		0x0002
533 #define SIS_PSTATE_D3		0x0003
534 #define SIS_PME_EN		0x0010
535 #define SIS_PME_STATUS		0x8000
536