xref: /freebsd/sys/dev/sis/if_sisreg.h (revision 3c4ba5f55438f7afd4f4b0b56f88f2bb505fd6a6)
1 /*-
2  * SPDX-License-Identifier: BSD-4-Clause
3  *
4  * Copyright (c) 1997, 1998, 1999
5  *	Bill Paul <wpaul@ee.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  * Register definitions for the SiS 900 and SiS 7016 chipsets. The
39  * 7016 is actually an older chip and some of its registers differ
40  * from the 900, however the core operational registers are the same:
41  * the differences lie in the OnNow/Wake on LAN stuff which we don't
42  * use anyway. The 7016 needs an external MII compliant PHY while the
43  * SiS 900 has one built in. All registers are 32-bits wide.
44  */
45 
46 /* Registers common to SiS 900 and SiS 7016 */
47 #define SIS_CSR			0x00
48 #define SIS_CFG			0x04
49 #define SIS_EECTL		0x08
50 #define SIS_PCICTL		0x0C
51 #define SIS_ISR			0x10
52 #define SIS_IMR			0x14
53 #define SIS_IER			0x18
54 #define SIS_PHYCTL		0x1C
55 #define SIS_TX_LISTPTR		0x20
56 #define SIS_TX_CFG		0x24
57 #define SIS_RX_LISTPTR		0x30
58 #define SIS_RX_CFG		0x34
59 #define SIS_FLOWCTL		0x38
60 #define SIS_RXFILT_CTL		0x48
61 #define SIS_RXFILT_DATA		0x4C
62 #define SIS_PWRMAN_CTL		0xB0
63 #define SIS_PWERMAN_WKUP_EVENT	0xB4
64 #define SIS_WKUP_FRAME_CRC	0xBC
65 #define SIS_WKUP_FRAME_MASK0	0xC0
66 #define SIS_WKUP_FRAME_MASKXX	0xEC
67 
68 /* SiS 7016 specific registers */
69 #define SIS_SILICON_REV		0x5C
70 #define SIS_MIB_CTL0		0x60
71 #define SIS_MIB_CTL1		0x64
72 #define SIS_MIB_CTL2		0x68
73 #define SIS_MIB_CTL3		0x6C
74 #define SIS_MIB			0x80
75 #define SIS_LINKSTS		0xA0
76 #define SIS_TIMEUNIT		0xA4
77 #define SIS_GPIO		0xB8
78 
79 /* NS DP83815/6 registers */
80 #define NS_IHR			0x1C
81 #define NS_CLKRUN		0x3C
82 #define	NS_WCSR			0x40
83 #define NS_SRR			0x58
84 #define NS_BMCR			0x80
85 #define NS_BMSR			0x84
86 #define NS_PHYIDR1		0x88
87 #define NS_PHYIDR2		0x8C
88 #define NS_ANAR			0x90
89 #define NS_ANLPAR		0x94
90 #define NS_ANER			0x98
91 #define NS_ANNPTR		0x9C
92 
93 #define NS_PHY_CR		0xE4
94 #define NS_PHY_10BTSCR		0xE8
95 #define NS_PHY_PAGE		0xCC
96 #define NS_PHY_EXTCFG		0xF0
97 #define NS_PHY_DSPCFG		0xF4
98 #define NS_PHY_SDCFG		0xF8
99 #define NS_PHY_TDATA		0xFC
100 
101 #define NS_CLKRUN_PMESTS	0x00008000
102 #define NS_CLKRUN_PMEENB	0x00000100
103 #define NS_CLNRUN_CLKRUN_ENB	0x00000001
104 
105 #define	NS_WCSR_WAKE_PHYINTR	0x00000001
106 #define	NS_WCSR_WAKE_UCAST	0x00000002
107 #define	NS_WCSR_WAKE_MCAST	0x00000004
108 #define	NS_WCSR_WAKE_BCAST	0x00000008
109 #define	NS_WCSR_WAKE_ARP	0x00000010
110 #define	NS_WCSR_WAKE_PATTERN0	0x00000020
111 #define	NS_WCSR_WAKE_PATTERN1	0x00000040
112 #define	NS_WCSR_WAKE_PATTERN2	0x00000080
113 #define	NS_WCSR_WAKE_PATTERN3	0x00000100
114 #define	NS_WCSR_WAKE_MAGIC	0x00000200
115 #define	NS_WCSR_WAKE_MAGIC_SEC	0x00000400
116 #define	NS_WCSR_DET_MAGIC_SECH	0x00100000
117 #define	NS_WCSR_DET_PHYINTR	0x00400000
118 #define	NS_WCSR_DET_UCAST	0x00800000
119 #define	NS_WCSR_DET_MCAST	0x01000000
120 #define	NS_WCSR_DET_BCAST	0x02000000
121 #define	NS_WCSR_DET_ARP		0x04000000
122 #define	NS_WCSR_DET_PATTERN0	0x08000000
123 #define	NS_WCSR_DET_PATTERN1	0x10000000
124 #define	NS_WCSR_DET_PATTERN2	0x20000000
125 #define	NS_WCSR_DET_PATTERN3	0x40000000
126 #define	NS_WCSR_DET_MAGIC	0x80000000
127 
128 /* NS silicon revisions */
129 #define NS_SRR_15C		0x302
130 #define NS_SRR_15D		0x403
131 #define NS_SRR_16A		0x505
132 
133 #define SIS_CSR_TX_ENABLE	0x00000001
134 #define SIS_CSR_TX_DISABLE	0x00000002
135 #define SIS_CSR_RX_ENABLE	0x00000004
136 #define SIS_CSR_RX_DISABLE	0x00000008
137 #define SIS_CSR_TX_RESET	0x00000010
138 #define SIS_CSR_RX_RESET	0x00000020
139 #define SIS_CSR_SOFTINTR	0x00000080
140 #define SIS_CSR_RESET		0x00000100
141 #define SIS_CSR_ACCESS_MODE	0x00000200
142 #define SIS_CSR_RELOAD		0x00000400
143 
144 #define SIS_CFG_BIGENDIAN	0x00000001
145 #define SIS_CFG_PERR_DETECT	0x00000008
146 #define SIS_CFG_DEFER_DISABLE	0x00000010
147 #define SIS_CFG_OUTOFWIN_TIMER	0x00000020
148 #define SIS_CFG_SINGLE_BACKOFF	0x00000040
149 #define SIS_CFG_PCIREQ_ALG	0x00000080
150 #define SIS_CFG_FAIR_BACKOFF	0x00000200 /* 635 & 900B Specific */
151 #define SIS_CFG_RND_CNT	0x00000400 /* 635 & 900B Specific */
152 #define SIS_CFG_EDB_MASTER_EN	0x00002000
153 
154 #define SIS_EECTL_DIN		0x00000001
155 #define SIS_EECTL_DOUT		0x00000002
156 #define SIS_EECTL_CLK		0x00000004
157 #define SIS_EECTL_CSEL		0x00000008
158 
159 #define	SIS_MII_CLK		0x00000040
160 #define	SIS_MII_DIR		0x00000020
161 #define	SIS_MII_DATA		0x00000010
162 
163 #define SIS_EECMD_WRITE		0x140
164 #define SIS_EECMD_READ		0x180
165 #define SIS_EECMD_ERASE		0x1c0
166 
167 /*
168  * EEPROM Commands for SiS96x
169  * chipsets.
170  */
171 #define SIS_EECMD_REQ		0x00000400
172 #define SIS_EECMD_DONE		0x00000200
173 #define SIS_EECMD_GNT		0x00000100
174 
175 #define SIS_EE_NODEADDR		0x8
176 #define NS_EE_NODEADDR		0x6
177 
178 #define SIS_PCICTL_SRAMADDR	0x0000001F
179 #define SIS_PCICTL_RAMTSTENB	0x00000020
180 #define SIS_PCICTL_TXTSTENB	0x00000040
181 #define SIS_PCICTL_RXTSTENB	0x00000080
182 #define SIS_PCICTL_BMTSTENB	0x00000200
183 #define SIS_PCICTL_RAMADDR	0x001F0000
184 #define SIS_PCICTL_ROMTIME	0x0F000000
185 #define SIS_PCICTL_DISCTEST	0x40000000
186 
187 #define SIS_ISR_RX_OK		0x00000001
188 #define SIS_ISR_RX_DESC_OK	0x00000002
189 #define SIS_ISR_RX_ERR		0x00000004
190 #define SIS_ISR_RX_EARLY	0x00000008
191 #define SIS_ISR_RX_IDLE		0x00000010
192 #define SIS_ISR_RX_OFLOW	0x00000020
193 #define SIS_ISR_TX_OK		0x00000040
194 #define SIS_ISR_TX_DESC_OK	0x00000080
195 #define SIS_ISR_TX_ERR		0x00000100
196 #define SIS_ISR_TX_IDLE		0x00000200
197 #define SIS_ISR_TX_UFLOW	0x00000400
198 #define SIS_ISR_SOFTINTR	0x00000800
199 #define SIS_ISR_HIBITS		0x00008000
200 #define SIS_ISR_RX_FIFO_OFLOW	0x00010000
201 #define SIS_ISR_TGT_ABRT	0x00100000
202 #define SIS_ISR_BM_ABRT		0x00200000
203 #define SIS_ISR_SYSERR		0x00400000
204 #define SIS_ISR_PARITY_ERR	0x00800000
205 #define SIS_ISR_RX_RESET_DONE	0x01000000
206 #define SIS_ISR_TX_RESET_DONE	0x02000000
207 #define SIS_ISR_TX_PAUSE_START	0x04000000
208 #define SIS_ISR_TX_PAUSE_DONE	0x08000000
209 #define SIS_ISR_WAKE_EVENT	0x10000000
210 
211 #define SIS_IMR_RX_OK		0x00000001
212 #define SIS_IMR_RX_DESC_OK	0x00000002
213 #define SIS_IMR_RX_ERR		0x00000004
214 #define SIS_IMR_RX_EARLY	0x00000008
215 #define SIS_IMR_RX_IDLE		0x00000010
216 #define SIS_IMR_RX_OFLOW	0x00000020
217 #define SIS_IMR_TX_OK		0x00000040
218 #define SIS_IMR_TX_DESC_OK	0x00000080
219 #define SIS_IMR_TX_ERR		0x00000100
220 #define SIS_IMR_TX_IDLE		0x00000200
221 #define SIS_IMR_TX_UFLOW	0x00000400
222 #define SIS_IMR_SOFTINTR	0x00000800
223 #define SIS_IMR_HIBITS		0x00008000
224 #define SIS_IMR_RX_FIFO_OFLOW	0x00010000
225 #define SIS_IMR_TGT_ABRT	0x00100000
226 #define SIS_IMR_BM_ABRT		0x00200000
227 #define SIS_IMR_SYSERR		0x00400000
228 #define SIS_IMR_PARITY_ERR	0x00800000
229 #define SIS_IMR_RX_RESET_DONE	0x01000000
230 #define SIS_IMR_TX_RESET_DONE	0x02000000
231 #define SIS_IMR_TX_PAUSE_START	0x04000000
232 #define SIS_IMR_TX_PAUSE_DONE	0x08000000
233 #define SIS_IMR_WAKE_EVENT	0x10000000
234 
235 #define SIS_INTRS	\
236 	(SIS_IMR_RX_OFLOW|SIS_IMR_TX_UFLOW|SIS_IMR_TX_OK|\
237 	 SIS_IMR_TX_IDLE|SIS_IMR_RX_OK|SIS_IMR_RX_ERR|\
238 	 SIS_IMR_RX_IDLE|\
239 	 SIS_IMR_SYSERR)
240 
241 #define SIS_IER_INTRENB		0x00000001
242 
243 #define SIS_PHYCTL_ACCESS	0x00000010
244 #define SIS_PHYCTL_OP		0x00000020
245 #define SIS_PHYCTL_REGADDR	0x000007C0
246 #define SIS_PHYCTL_PHYADDR	0x0000F800
247 #define SIS_PHYCTL_PHYDATA	0xFFFF0000
248 
249 #define SIS_PHYOP_READ		0x00000020
250 #define SIS_PHYOP_WRITE		0x00000000
251 
252 #define SIS_TXCFG_DRAIN_THRESH	0x0000003F /* 32-byte units */
253 #define SIS_TXCFG_FILL_THRESH	0x00003F00 /* 32-byte units */
254 #define SIS_TXCFG_DMABURST	0x00700000
255 #define SIS_TXCFG_AUTOPAD	0x10000000
256 #define SIS_TXCFG_LOOPBK	0x20000000
257 #define SIS_TXCFG_IGN_HBEAT	0x40000000
258 #define SIS_TXCFG_IGN_CARR	0x80000000
259 
260 #define SIS_TXCFG_DRAIN(x)	(((x) >> 5) & SIS_TXCFG_DRAIN_THRESH)
261 #define SIS_TXCFG_FILL(x)	((((x) >> 5) << 8) & SIS_TXCFG_FILL_THRESH)
262 
263 #define SIS_TXDMA_512BYTES	0x00000000
264 #define SIS_TXDMA_4BYTES	0x00100000
265 #define SIS_TXDMA_8BYTES	0x00200000
266 #define SIS_TXDMA_16BYTES	0x00300000
267 #define SIS_TXDMA_32BYTES	0x00400000
268 #define SIS_TXDMA_64BYTES	0x00500000
269 #define SIS_TXDMA_128BYTES	0x00600000
270 #define SIS_TXDMA_256BYTES	0x00700000
271 
272 #define SIS_TXCFG_100	\
273 	(SIS_TXDMA_64BYTES|SIS_TXCFG_AUTOPAD|\
274 	 SIS_TXCFG_FILL(64)|SIS_TXCFG_DRAIN(1536))
275 
276 #define SIS_TXCFG_10	\
277 	(SIS_TXDMA_32BYTES|SIS_TXCFG_AUTOPAD|\
278 	 SIS_TXCFG_FILL(64)|SIS_TXCFG_DRAIN(1536))
279 
280 #define SIS_RXCFG_DRAIN_THRESH	0x0000003E /* 8-byte units */
281 #define SIS_TXCFG_MPII03D	0x00040000 /* "Must be 1" */
282 #define SIS_RXCFG_DMABURST	0x00700000
283 #define SIS_RXCFG_RX_JABBER	0x08000000
284 #define SIS_RXCFG_RX_TXPKTS	0x10000000
285 #define SIS_RXCFG_RX_RUNTS	0x40000000
286 #define SIS_RXCFG_RX_GIANTS	0x80000000
287 
288 #define SIS_RXCFG_DRAIN(x)	((((x) >> 3) << 1) & SIS_RXCFG_DRAIN_THRESH)
289 
290 #define SIS_RXDMA_512BYTES	0x00000000
291 #define SIS_RXDMA_4BYTES	0x00100000
292 #define SIS_RXDMA_8BYTES	0x00200000
293 #define SIS_RXDMA_16BYTES	0x00300000
294 #define SIS_RXDMA_32BYTES	0x00400000
295 #define SIS_RXDMA_64BYTES	0x00500000
296 #define SIS_RXDMA_128BYTES	0x00600000
297 #define SIS_RXDMA_256BYTES	0x00700000
298 
299 #define SIS_RXCFG256 \
300 	(SIS_RXCFG_DRAIN(64)|SIS_RXDMA_256BYTES)
301 #define SIS_RXCFG64 \
302 	(SIS_RXCFG_DRAIN(64)|SIS_RXDMA_64BYTES)
303 
304 #define SIS_RXFILTCTL_ADDR	0x000F0000
305 #define NS_RXFILTCTL_MCHASH	0x00200000
306 #define NS_RXFILTCTL_ARP	0x00400000
307 #define NS_RXFILTCTL_PERFECT	0x08000000
308 #define SIS_RXFILTCTL_ALLPHYS	0x10000000
309 #define SIS_RXFILTCTL_ALLMULTI	0x20000000
310 #define SIS_RXFILTCTL_BROAD	0x40000000
311 #define SIS_RXFILTCTL_ENABLE	0x80000000
312 
313 #define SIS_FILTADDR_PAR0	0x00000000
314 #define SIS_FILTADDR_PAR1	0x00010000
315 #define SIS_FILTADDR_PAR2	0x00020000
316 #define SIS_FILTADDR_MAR0	0x00040000
317 #define SIS_FILTADDR_MAR1	0x00050000
318 #define SIS_FILTADDR_MAR2	0x00060000
319 #define SIS_FILTADDR_MAR3	0x00070000
320 #define SIS_FILTADDR_MAR4	0x00080000
321 #define SIS_FILTADDR_MAR5	0x00090000
322 #define SIS_FILTADDR_MAR6	0x000A0000
323 #define SIS_FILTADDR_MAR7	0x000B0000
324 
325 #define NS_FILTADDR_PAR0	0x00000000
326 #define NS_FILTADDR_PAR1	0x00000002
327 #define NS_FILTADDR_PAR2	0x00000004
328 
329 #define NS_FILTADDR_FMEM_LO	0x00000200
330 #define NS_FILTADDR_FMEM_HI	0x000003FE
331 
332 #define	SIS_PWRMAN_WOL_LINK_OFF	0x00000001
333 #define	SIS_PWRMAN_WOL_LINK_ON	0x00000002
334 #define	SIS_PWRMAN_WOL_MAGIC	0x00000400
335 
336 /*
337  * TX/RX DMA descriptor structures.
338  */
339 struct sis_desc {
340 	/* SiS hardware descriptor section */
341 	uint32_t		sis_next;
342 	volatile uint32_t	sis_cmdsts;
343 	volatile uint32_t	sis_ptr;
344 };
345 
346 #define SIS_CMDSTS_BUFLEN	0x00000FFF
347 #define SIS_CMDSTS_PKT_OK	0x08000000
348 #define SIS_CMDSTS_CRC		0x10000000
349 #define SIS_CMDSTS_INTR		0x20000000
350 #define SIS_CMDSTS_MORE		0x40000000
351 #define SIS_CMDSTS_OWN		0x80000000
352 
353 #define SIS_RXSTAT_COLL		0x00010000
354 #define SIS_RXSTAT_LOOPBK	0x00020000
355 #define SIS_RXSTAT_ALIGNERR	0x00040000
356 #define SIS_RXSTAT_CRCERR	0x00080000
357 #define SIS_RXSTAT_SYMBOLERR	0x00100000
358 #define SIS_RXSTAT_RUNT		0x00200000
359 #define SIS_RXSTAT_GIANT	0x00400000
360 #define SIS_RXSTAT_DSTCLASS	0x01800000
361 #define SIS_RXSTAT_OVERRUN	0x02000000
362 #define SIS_RXSTAT_RX_ABORT	0x04000000
363 
364 #define	SIS_RXSTAT_ERROR(x)						\
365 	((x) & (SIS_RXSTAT_RX_ABORT | SIS_RXSTAT_OVERRUN |		\
366 	SIS_RXSTAT_GIANT | SIS_RXSTAT_SYMBOLERR | SIS_RXSTAT_RUNT |	\
367 	SIS_RXSTAT_CRCERR | SIS_RXSTAT_ALIGNERR))
368 
369 #define SIS_DSTCLASS_REJECT	0x00000000
370 #define SIS_DSTCLASS_UNICAST	0x00800000
371 #define SIS_DSTCLASS_MULTICAST	0x01000000
372 #define SIS_DSTCLASS_BROADCAST	0x02000000
373 
374 #define SIS_TXSTAT_COLLCNT	0x000F0000
375 #define SIS_TXSTAT_EXCESSCOLLS	0x00100000
376 #define SIS_TXSTAT_OUTOFWINCOLL	0x00200000
377 #define SIS_TXSTAT_EXCESS_DEFER	0x00400000
378 #define SIS_TXSTAT_DEFERED	0x00800000
379 #define SIS_TXSTAT_CARR_LOST	0x01000000
380 #define SIS_TXSTAT_UNDERRUN	0x02000000
381 #define SIS_TXSTAT_TX_ABORT	0x04000000
382 
383 #define	SIS_DESC_ALIGN		16
384 #define	SIS_RX_BUF_ALIGN	4
385 #define	SIS_MAXTXSEGS		16
386 #define SIS_RX_LIST_CNT		64
387 #define SIS_TX_LIST_CNT		128
388 
389 #define SIS_RX_LIST_SZ		SIS_RX_LIST_CNT * sizeof(struct sis_desc)
390 #define SIS_TX_LIST_SZ		SIS_TX_LIST_CNT * sizeof(struct sis_desc)
391 
392 #define	SIS_ADDR_LO(x)		((uint64_t) (x) & 0xffffffff)
393 #define	SIS_ADDR_HI(x)		((uint64_t) (x) >> 32)
394 
395 #define	SIS_RX_RING_ADDR(sc, i)	\
396 	((sc)->sis_rx_paddr + sizeof(struct sis_desc) * (i))
397 #define	SIS_TX_RING_ADDR(sc, i)	\
398 	((sc)->sis_tx_paddr + sizeof(struct sis_desc) * (i))
399 
400 #define	SIS_INC(x, y)		(x) = (x + 1) % (y)
401 
402 /*
403  * SiS PCI vendor ID.
404  */
405 #define SIS_VENDORID		0x1039
406 
407 /*
408  * SiS PCI device IDs
409  */
410 #define SIS_DEVICEID_900	0x0900
411 #define SIS_DEVICEID_7016	0x7016
412 
413 /*
414  * SiS 900 PCI revision codes.
415  */
416 #define SIS_REV_900B		0x0003
417 #define SIS_REV_630A		0x0080
418 #define SIS_REV_630E		0x0081
419 #define SIS_REV_630S		0x0082
420 #define SIS_REV_630EA1		0x0083
421 #define SIS_REV_630ET		0x0084
422 #define SIS_REV_635		0x0090
423 #define SIS_REV_96x		0x0091
424 
425 /*
426  * NatSemi vendor ID
427  */
428 #define NS_VENDORID		0x100B
429 
430 /*
431  * DP83815 device ID
432  */
433 #define NS_DEVICEID_DP83815	0x0020
434 
435 struct sis_type {
436 	uint16_t		sis_vid;
437 	uint16_t		sis_did;
438 	const char		*sis_name;
439 };
440 
441 #define SIS_TYPE_900	1
442 #define SIS_TYPE_7016	2
443 #define SIS_TYPE_83815	3
444 
445 struct sis_txdesc {
446 	struct mbuf		*tx_m;
447 	bus_dmamap_t		tx_dmamap;
448 };
449 
450 struct sis_rxdesc {
451 	struct mbuf		*rx_m;
452 	bus_dmamap_t		rx_dmamap;
453 	struct sis_desc		*rx_desc;
454 };
455 
456 struct sis_softc {
457 	if_t			sis_ifp;	/* interface info */
458 	struct resource		*sis_res[2];
459 	void			*sis_intrhand;
460 	device_t		sis_dev;
461 	device_t		sis_miibus;
462 	uint8_t			sis_type;
463 	uint8_t			sis_rev;
464 	uint32_t		sis_flags;
465 #define	SIS_FLAG_MANUAL_PAD	0x0800
466 #define	SIS_FLAG_LINK		0x8000
467 	int			sis_manual_pad;
468 	uint32_t		sis_srr;
469 	struct sis_desc		*sis_rx_list;
470 	struct sis_desc		*sis_tx_list;
471 	bus_dma_tag_t		sis_rx_list_tag;
472 	bus_dmamap_t		sis_rx_list_map;
473 	bus_dma_tag_t		sis_tx_list_tag;
474 	bus_dmamap_t		sis_tx_list_map;
475 	bus_dma_tag_t		sis_parent_tag;
476 	bus_dma_tag_t		sis_rx_tag;
477 	bus_dmamap_t		sis_rx_sparemap;
478 	bus_dma_tag_t		sis_tx_tag;
479 	struct sis_rxdesc	sis_rxdesc[SIS_RX_LIST_CNT];
480 	struct sis_txdesc	sis_txdesc[SIS_TX_LIST_CNT];
481 	int			sis_tx_prod;
482 	int			sis_tx_cons;
483 	int			sis_tx_cnt;
484 	int			sis_rx_cons;
485 	bus_addr_t		sis_rx_paddr;
486 	bus_addr_t		sis_tx_paddr;
487 	struct callout		sis_stat_ch;
488 	int			sis_watchdog_timer;
489 	int			sis_if_flags;
490 #ifdef DEVICE_POLLING
491 	int			rxcycles;
492 #endif
493 	struct mtx		sis_mtx;
494 };
495 
496 #define SIS_TIMEOUT		1000
497 #define ETHER_ALIGN		2
498 #define SIS_RXLEN		1536
499 #define SIS_MIN_FRAMELEN	60
500 
501 /*
502  * PCI low memory base and low I/O base register, and
503  * other PCI registers.
504  */
505 
506 #define SIS_PCI_VENDOR_ID	0x00
507 #define SIS_PCI_DEVICE_ID	0x02
508 #define SIS_PCI_COMMAND		0x04
509 #define SIS_PCI_STATUS		0x06
510 #define SIS_PCI_REVID		0x08
511 #define SIS_PCI_CLASSCODE	0x09
512 #define SIS_PCI_CACHELEN	0x0C
513 #define SIS_PCI_LATENCY_TIMER	0x0D
514 #define SIS_PCI_HEADER_TYPE	0x0E
515 #define SIS_PCI_LOIO		0x10
516 #define SIS_PCI_LOMEM		0x14
517 #define SIS_PCI_BIOSROM		0x30
518 #define SIS_PCI_INTLINE		0x3C
519 #define SIS_PCI_INTPIN		0x3D
520 #define SIS_PCI_MINGNT		0x3E
521 #define SIS_PCI_MINLAT		0x0F
522 #define SIS_PCI_RESETOPT	0x48
523 #define SIS_PCI_EEPROM_DATA	0x4C
524 
525 /* power management registers */
526 #define SIS_PCI_CAPID		0x50 /* 8 bits */
527 #define SIS_PCI_NEXTPTR		0x51 /* 8 bits */
528 #define SIS_PCI_PWRMGMTCAP	0x52 /* 16 bits */
529 #define SIS_PCI_PWRMGMTCTRL	0x54 /* 16 bits */
530 
531 #define SIS_PSTATE_MASK		0x0003
532 #define SIS_PSTATE_D0		0x0000
533 #define SIS_PSTATE_D1		0x0001
534 #define SIS_PSTATE_D2		0x0002
535 #define SIS_PSTATE_D3		0x0003
536 #define SIS_PME_EN		0x0010
537 #define SIS_PME_STATUS		0x8000
538