xref: /netbsd-src/sys/dev/pci/if_etreg.h (revision 100a3398b8d3c64e571cff36b46c23431b410e09)
1 /*	$NetBSD: if_etreg.h,v 1.5 2024/02/09 22:08:35 andvar Exp $	*/
2 /*	$OpenBSD: if_etreg.h,v 1.3 2008/06/08 06:18:07 jsg Exp $	*/
3 
4 /*
5  * Copyright (c) 2007 The DragonFly Project.  All rights reserved.
6  *
7  * This code is derived from software contributed to The DragonFly Project
8  * by Sepherosa Ziehau <sepherosa@gmail.com>
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  *
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in
18  *    the documentation and/or other materials provided with the
19  *    distribution.
20  * 3. Neither the name of The DragonFly Project nor the names of its
21  *    contributors may be used to endorse or promote products derived
22  *    from this software without specific, prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
27  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
28  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
29  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
30  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
31  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
32  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
33  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
34  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35  * SUCH DAMAGE.
36  *
37  * $DragonFly: src/sys/dev/netif/et/if_etreg.h,v 1.1 2007/10/12 14:12:42 sephe Exp $
38  */
39 
40 #ifndef _IF_ETREG_H
41 #define _IF_ETREG_H
42 
43 #define ET_INTERN_MEM_SIZE		0x400
44 #define ET_INTERN_MEM_END		(ET_INTERN_MEM_SIZE - 1)
45 
46 /*
47  * PCI registers
48  *
49  * ET_PCIV_ACK_LATENCY_{128,256} are from
50  * PCI EXPRESS BASE SPECIFICATION, REV. 1.0a, Table 3-5
51  *
52  * ET_PCIV_REPLAY_TIMER_{128,256} are from
53  * PCI EXPRESS BASE SPECIFICATION, REV. 1.0a, Table 3-4
54  */
55 #define ET_PCIR_BAR			0x10
56 
57 #define ET_PCIR_DEVICE_CAPS		0x4c
58 #define ET_PCIM_DEVICE_CAPS_MAX_PLSZ	0x7	/* Max playload size */
59 #define ET_PCIV_DEVICE_CAPS_PLSZ_128	0x0
60 #define ET_PCIV_DEVICE_CAPS_PLSZ_256	0x1
61 
62 #define ET_PCIR_DEVICE_CTRL		0x50
63 #define ET_PCIM_DEVICE_CTRL_MAX_RRSZ	0x7000	/* Max read request size */
64 #define ET_PCIV_DEVICE_CTRL_RRSZ_2K	0x4000
65 
66 #define ET_PCIR_MACADDR_LO		0xa4
67 #define ET_PCIR_MACADDR_HI		0xa8
68 
69 #define ET_PCIR_EEPROM_MISC		0xb0
70 #define ET_PCIR_EEPROM_STATUS_MASK	0x0000ff00
71 #define ET_PCIM_EEPROM_STATUS_ERROR	0x00004c00
72 
73 #define ET_PCIR_ACK_LATENCY		0xc0
74 #define ET_PCIV_ACK_LATENCY_128		237
75 #define ET_PCIV_ACK_LATENCY_256		416
76 
77 #define ET_PCIR_REPLAY_TIMER		0xc2
78 #define ET_REPLAY_TIMER_RX_L0S_ADJ	250	/* XXX inferred from default */
79 #define ET_PCIV_REPLAY_TIMER_128	(711 + ET_REPLAY_TIMER_RX_L0S_ADJ)
80 #define ET_PCIV_REPLAY_TIMER_256	(1248 + ET_REPLAY_TIMER_RX_L0S_ADJ)
81 
82 #define ET_PCIR_L0S_L1_LATENCY		0xcf
83 #define ET_PCIM_L0S_LATENCY		(7 << 0)
84 #define ET_PCIM_L1_LATENCY		(7 << 3)
85 
86 /*
87  * CSR
88  */
89 #define ET_TXQ_START			0x0000
90 #define ET_TXQ_END			0x0004
91 #define ET_RXQ_START			0x0008
92 #define ET_RXQ_END			0x000c
93 
94 #define ET_PM				0x0010
95 #define EM_PM_GIGEPHY_ENB		(1 << 0)
96 #define ET_PM_SYSCLK_GATE		(1 << 3)
97 #define ET_PM_TXCLK_GATE		(1 << 4)
98 #define ET_PM_RXCLK_GATE		(1 << 5)
99 
100 #define ET_INTR_STATUS			0x0018
101 #define ET_INTR_MASK			0x001c
102 
103 #define ET_SWRST			0x0028
104 #define ET_SWRST_TXDMA			(1 << 0)
105 #define ET_SWRST_RXDMA			(1 << 1)
106 #define ET_SWRST_TXMAC			(1 << 2)
107 #define ET_SWRST_RXMAC			(1 << 3)
108 #define ET_SWRST_MAC			(1 << 4)
109 #define ET_SWRST_MAC_STAT		(1 << 5)
110 #define ET_SWRST_MMC			(1 << 6)
111 #define ET_SWRST_SELFCLR_DISABLE	(1 << 31)
112 
113 #define ET_MSI_CFG			0x0030
114 
115 #define ET_LOOPBACK			0x0034
116 
117 #define ET_TIMER			0x0038
118 
119 #define ET_TXDMA_CTRL			0x1000
120 #define ET_TXDMA_CTRL_HALT		(1 << 0)
121 #define ET_TXDMA_CTRL_CACHE_THR		0xf0
122 #define ET_TXDMA_CTRL_SINGLE_EPKT	(1 << 8)
123 
124 #define ET_TX_RING_HI			0x1004
125 #define ET_TX_RING_LO			0x1008
126 #define ET_TX_RING_CNT			0x100c
127 
128 #define ET_TX_STATUS_HI			0x101c
129 #define ET_TX_STATUS_LO			0x1020
130 
131 #define ET_TX_READY_POS			0x1024
132 #define ET_TX_READY_POS_INDEX		0x03ff
133 #define ET_TX_READY_POS_WRAP		(1 << 10)
134 
135 #define ET_TX_DONE_POS			0x1060
136 #define ET_TX_DONE_POS_INDEX		0x03ff
137 #define ET_TX_DONE_POS_WRAP		(1 << 10)
138 
139 #define ET_RXDMA_CTRL			0x2000
140 #define ET_RXDMA_CTRL_HALT		(1 << 0)
141 #define ET_RXDMA_CTRL_RING0_SIZE	(3 << 8)
142 #define ET_RXDMA_CTRL_RING0_ENABLE	(1 << 10)
143 #define ET_RXDMA_CTRL_RING1_SIZE	(3 << 11)
144 #define ET_RXDMA_CTRL_RING1_ENABLE	(1 << 13)
145 #define ET_RXDMA_CTRL_HALTED		(1 << 17)
146 
147 #define ET_RX_STATUS_LO			0x2004
148 #define ET_RX_STATUS_HI			0x2008
149 
150 #define ET_RX_INTR_NPKTS		0x200c
151 #define ET_RX_INTR_DELAY		0x2010
152 
153 #define ET_RXSTAT_LO			0x2020
154 #define ET_RXSTAT_HI			0x2024
155 #define ET_RXSTAT_CNT			0x2028
156 
157 #define ET_RXSTAT_POS			0x2030
158 #define ET_RXSTAT_POS_INDEX		0x0fff
159 #define ET_RXSTAT_POS_WRAP		(1 << 12)
160 
161 #define ET_RXSTAT_MINCNT		0x2038
162 
163 #define ET_RX_RING0_LO			0x203c
164 #define ET_RX_RING0_HI			0x2040
165 #define ET_RX_RING0_CNT			0x2044
166 
167 #define ET_RX_RING0_POS			0x204c
168 #define ET_RX_RING0_POS_INDEX		0x03ff
169 #define ET_RX_RING0_POS_WRAP		(1 << 10)
170 
171 #define ET_RX_RING0_MINCNT		0x2054
172 
173 #define ET_RX_RING1_LO			0x2058
174 #define ET_RX_RING1_HI			0x205c
175 #define ET_RX_RING1_CNT			0x2060
176 
177 #define ET_RX_RING1_POS			0x2068
178 #define ET_RX_RING1_POS_INDEX		0x03ff
179 #define ET_RX_RING1_POS_WRAP		(1 << 10)
180 
181 #define ET_RX_RING1_MINCNT		0x2070
182 
183 #define ET_TXMAC_CTRL			0x3000
184 #define ET_TXMAC_CTRL_ENABLE		(1 << 0)
185 #define ET_TXMAC_CTRL_FC_DISABLE	(1 << 3)
186 
187 #define ET_TXMAC_FLOWCTRL		0x3010
188 
189 #define ET_RXMAC_CTRL			0x4000
190 #define ET_RXMAC_CTRL_ENABLE		(1 << 0)
191 #define ET_RXMAC_CTRL_NO_PKTFILT	(1 << 2)
192 #define ET_RXMAC_CTRL_WOL_DISABLE	(1 << 3)
193 
194 #define ET_WOL_CRC			0x4004
195 #define ET_WOL_SA_LO			0x4010
196 #define ET_WOL_SA_HI			0x4014
197 #define ET_WOL_MASK			0x4018
198 
199 #define ET_UCAST_FILTADDR1		0x4068
200 #define ET_UCAST_FILTADDR2		0x406c
201 #define ET_UCAST_FILTADDR3		0x4070
202 
203 #define ET_MULTI_HASH			0x4074
204 
205 #define ET_PKTFILT			0x4084
206 #define ET_PKTFILT_BCAST		(1 << 0)
207 #define ET_PKTFILT_MCAST		(1 << 1)
208 #define ET_PKTFILT_UCAST		(1 << 2)
209 #define ET_PKTFILT_FRAG			(1 << 3)
210 #define ET_PKTFILT_MINLEN		0x7f0000
211 
212 #define ET_RXMAC_MC_SEGSZ		0x4088
213 #define ET_RXMAC_MC_SEGSZ_ENABLE	(1 << 0)
214 #define ET_RXMAC_MC_SEGSZ_FC		(1 << 1)
215 #define ET_RXMAC_MC_SEGSZ_MAX		0x03fc
216 
217 #define ET_RXMAC_MC_WATERMARK		0x408c
218 #define ET_RXMAC_SPACE_AVL		0x4094
219 
220 #define ET_RXMAC_MGT			0x4098
221 #define ET_RXMAC_MGT_PASS_ECRC		(1 << 4)
222 #define ET_RXMAC_MGT_PASS_ELEN		(1 << 5)
223 #define ET_RXMAC_MGT_PASS_ETRUNC	(1 << 16)
224 #define ET_RXMAC_MGT_CHECK_PKT		(1 << 17)
225 
226 #define ET_MAC_CFG1			0x5000
227 #define ET_MAC_CFG1_TXEN		(1 << 0)
228 #define ET_MAC_CFG1_SYNC_TXEN		(1 << 1)
229 #define ET_MAC_CFG1_RXEN		(1 << 2)
230 #define ET_MAC_CFG1_SYNC_RXEN		(1 << 3)
231 #define ET_MAC_CFG1_TXFLOW		(1 << 4)
232 #define ET_MAC_CFG1_RXFLOW		(1 << 5)
233 #define ET_MAC_CFG1_LOOPBACK		(1 << 8)
234 #define ET_MAC_CFG1_RST_TXFUNC		(1 << 16)
235 #define ET_MAC_CFG1_RST_RXFUNC		(1 << 17)
236 #define ET_MAC_CFG1_RST_TXMC		(1 << 18)
237 #define ET_MAC_CFG1_RST_RXMC		(1 << 19)
238 #define ET_MAC_CFG1_SIM_RST		(1 << 30)
239 #define ET_MAC_CFG1_SOFT_RST		__BIT(31)
240 
241 #define ET_MAC_CFG2			0x5004
242 #define ET_MAC_CFG2_FDX			(1 << 0)
243 #define ET_MAC_CFG2_CRC			(1 << 1)
244 #define ET_MAC_CFG2_PADCRC		(1 << 2)
245 #define ET_MAC_CFG2_LENCHK		(1 << 4)
246 #define ET_MAC_CFG2_BIGFRM		(1 << 5)
247 #define ET_MAC_CFG2_MODE_MII		(1 << 8)
248 #define ET_MAC_CFG2_MODE_GMII		(1 << 9)
249 #define ET_MAC_CFG2_PREAMBLE_LEN	0xf000
250 
251 #define ET_IPG				0x5008
252 #define ET_IPG_B2B			0x0000007f
253 #define ET_IPG_MINIFG			0x0000ff00
254 #define ET_IPG_NONB2B_2			0x007f0000
255 #define ET_IPG_NONB2B_1			0x7f000000
256 
257 #define ET_MAC_HDX			0x500c
258 #define ET_MAC_HDX_COLLWIN		0x0003ff
259 #define ET_MAC_HDX_REXMIT_MAX		0x00f000
260 #define ET_MAC_HDX_REXMIT_MAX		0x00f000
261 #define ET_MAC_HDX_EXC_DEFER		(1 << 16)
262 #define ET_MAC_HDX_NOBACKOFF		(1 << 17)
263 #define ET_MAC_HDX_BP_NOBACKOFF		(1 << 18)
264 #define ET_MAC_HDX_ALT_BEB		(1 << 19)
265 #define ET_MAC_HDX_ALT_BEB_TRUNC	0xf00000
266 
267 #define ET_MAX_FRMLEN			0x5010
268 
269 #define ET_MII_CFG			0x5020
270 #define ET_MII_CFG_CLKRST		(7 << 0)
271 #define ET_MII_CFG_PREAMBLE_SUP		(1 << 4)
272 #define ET_MII_CFG_SCAN_AUTOINC		(1 << 5)
273 #define ET_MII_CFG_RST			(1 << 31)
274 
275 #define ET_MII_CMD			0x5024
276 #define ET_MII_CMD_READ			(1 << 0)
277 
278 #define ET_MII_ADDR			0x5028
279 #define ET_MII_ADDR_REG			0x001f
280 #define ET_MII_ADDR_PHY			0x1f00
281 #define ET_MII_ADDR_SHIFT		8
282 
283 
284 #define ET_MII_CTRL			0x502c
285 #define ET_MII_CTRL_VALUE		0xffff
286 
287 #define ET_MII_STAT			0x5030
288 #define ET_MII_STAT_VALUE		0xffff
289 
290 #define ET_MII_IND			0x5034
291 #define ET_MII_IND_BUSY			(1 << 0)
292 #define ET_MII_IND_INVALID		(1 << 2)
293 
294 #define ET_MAC_CTRL			0x5038
295 #define ET_MAC_CTRL_MODE_MII		(1 << 24)
296 #define ET_MAC_CTRL_LHDX		(1 << 25)
297 #define ET_MAC_CTRL_GHDX		(1 << 26)
298 
299 #define ET_MAC_ADDR1			0x5040
300 #define ET_MAC_ADDR2			0x5044
301 
302 #define ET_MMC_CTRL			0x7000
303 #define ET_MMC_CTRL_ENABLE		(1 << 0)
304 #define ET_MMC_CTRL_ARB_DISABLE		(1 << 1)
305 #define ET_MMC_CTRL_RXMAC_DISABLE	(1 << 2)
306 #define ET_MMC_CTRL_TXMAC_DISABLE	(1 << 3)
307 #define ET_MMC_CTRL_TXDMA_DISABLE	(1 << 4)
308 #define ET_MMC_CTRL_RXDMA_DISABLE	(1 << 5)
309 #define ET_MMC_CTRL_FORCE_CE		(1 << 6)
310 
311 /*
312  * Interrupts
313  */
314 #define ET_INTR_TXEOF			(1 << 3)
315 #define ET_INTR_TXDMA_ERROR		(1 << 4)
316 #define ET_INTR_RXEOF			(1 << 5)
317 #define ET_INTR_RXRING0_LOW		(1 << 6)
318 #define ET_INTR_RXRING1_LOW		(1 << 7)
319 #define ET_INTR_RXSTAT_LOW		(1 << 8)
320 #define ET_INTR_RXDMA_ERROR		(1 << 9)
321 #define ET_INTR_TIMER			(1 << 10)
322 #define ET_INTR_WOL			(1 << 15)
323 #define ET_INTR_PHY			(1 << 16)
324 #define ET_INTR_TXMAC			(1 << 17)
325 #define ET_INTR_RXMAC			(1 << 18)
326 #define ET_INTR_MAC_STATS		(1 << 19)
327 #define ET_INTR_SLAVE_TO		(1 << 20)
328 
329 #define ET_INTRS			(ET_INTR_TXEOF | \
330 					 ET_INTR_RXEOF | \
331 					 ET_INTR_TIMER)
332 
333 /*
334  * RX ring position uses same layout
335  */
336 #define ET_RX_RING_POS_INDEX		(0x03ff << 0)
337 #define ET_RX_RING_POS_WRAP		(1 << 10)
338 
339 
340 /* $DragonFly: src/sys/dev/netif/et/if_etvar.h,v 1.1 2007/10/12 14:12:42 sephe Exp $ */
341 
342 #define ET_ALIGN		0x1000
343 #define ET_NSEG_MAX		32	/* XXX no limit actually */
344 #define ET_NSEG_SPARE		5
345 
346 #define ET_TX_NDESC		512
347 #define ET_RX_NDESC		512
348 #define ET_RX_NRING		2
349 #define ET_RX_NSTAT		(ET_RX_NRING * ET_RX_NDESC)
350 
351 #define ET_TX_RING_SIZE		(ET_TX_NDESC * sizeof(struct et_txdesc))
352 #define ET_RX_RING_SIZE		(ET_RX_NDESC * sizeof(struct et_rxdesc))
353 #define ET_RXSTAT_RING_SIZE	(ET_RX_NSTAT * sizeof(struct et_rxstat))
354 
355 #define CSR_WRITE_4(sc, reg, val)	\
356 	bus_space_write_4((sc)->sc_mem_bt, (sc)->sc_mem_bh, (reg), (val))
357 #define CSR_READ_4(sc, reg)		\
358 	bus_space_read_4((sc)->sc_mem_bt, (sc)->sc_mem_bh, (reg))
359 
360 #define ET_ADDR_HI(addr)	((uint64_t) (addr) >> 32)
361 #define ET_ADDR_LO(addr)	((uint64_t) (addr) & 0xffffffff)
362 
363 struct et_txdesc {
364 	uint32_t	td_addr_hi;
365 	uint32_t	td_addr_lo;
366 	uint32_t	td_ctrl1;	/* ET_TDCTRL1_ */
367 	uint32_t	td_ctrl2;	/* ET_TDCTRL2_ */
368 } __packed;
369 
370 #define ET_TDCTRL1_LEN		0xffff
371 
372 #define ET_TDCTRL2_LAST_FRAG	(1 << 0)
373 #define ET_TDCTRL2_FIRST_FRAG	(1 << 1)
374 #define ET_TDCTRL2_INTR		(1 << 2)
375 
376 struct et_rxdesc {
377 	uint32_t	rd_addr_lo;
378 	uint32_t	rd_addr_hi;
379 	uint32_t	rd_ctrl;	/* ET_RDCTRL_ */
380 } __packed;
381 
382 #define ET_RDCTRL_BUFIDX	0x03ff
383 
384 struct et_rxstat {
385 	uint32_t	rxst_info1;
386 	uint32_t	rxst_info2;	/* ET_RXST_INFO2_ */
387 } __packed;
388 
389 #define ET_RXST_INFO2_LEN	0x000ffff
390 #define ET_RXST_INFO2_BUFIDX	0x3ff0000
391 #define ET_RXST_INFO2_RINGIDX	(3 << 26)
392 
393 struct et_rxstatus {
394 	uint32_t	rxs_ring;
395 	uint32_t	rxs_stat_ring;	/* ET_RXS_STATRING_ */
396 } __packed;
397 
398 #define ET_RXS_STATRING_INDEX	0xfff0000
399 #define ET_RXS_STATRING_WRAP	(1 << 28)
400 
401 struct et_txbuf {
402 	struct mbuf		*tb_mbuf;
403 	bus_dmamap_t		tb_dmap;
404 	bus_dma_segment_t	tb_seg;
405 };
406 
407 struct et_rxbuf {
408 	struct mbuf		*rb_mbuf;
409 	bus_dmamap_t		rb_dmap;
410 	bus_dma_segment_t	rb_seg;
411 	bus_addr_t		rb_paddr;
412 };
413 
414 struct et_txstatus_data {
415 	uint32_t		*txsd_status;
416 	bus_addr_t		txsd_paddr;
417 	bus_dma_tag_t		txsd_dtag;
418 	bus_dmamap_t		txsd_dmap;
419 	bus_dma_segment_t	txsd_seg;
420 };
421 
422 struct et_rxstatus_data {
423 	struct et_rxstatus	*rxsd_status;
424 	bus_addr_t		rxsd_paddr;
425 	bus_dma_tag_t		rxsd_dtag;
426 	bus_dmamap_t		rxsd_dmap;
427 	bus_dma_segment_t	rxsd_seg;
428 };
429 
430 struct et_rxstat_ring {
431 	struct et_rxstat	*rsr_stat;
432 	bus_addr_t		rsr_paddr;
433 	bus_dma_tag_t		rsr_dtag;
434 	bus_dmamap_t		rsr_dmap;
435 	bus_dma_segment_t	rsr_seg;
436 
437 	int			rsr_index;
438 	int			rsr_wrap;
439 };
440 
441 struct et_txdesc_ring {
442 	struct et_txdesc	*tr_desc;
443 	bus_addr_t		tr_paddr;
444 	bus_dma_tag_t		tr_dtag;
445 	bus_dmamap_t		tr_dmap;
446 	bus_dma_segment_t	tr_seg;
447 
448 	int			tr_ready_index;
449 	int			tr_ready_wrap;
450 };
451 
452 struct et_rxdesc_ring {
453 	struct et_rxdesc	*rr_desc;
454 	bus_addr_t		rr_paddr;
455 	bus_dma_tag_t		rr_dtag;
456 	bus_dmamap_t		rr_dmap;
457 	bus_dma_segment_t	rr_seg;
458 
459 	uint32_t		rr_posreg;
460 	int			rr_index;
461 	int			rr_wrap;
462 };
463 
464 struct et_txbuf_data {
465 	struct et_txbuf		tbd_buf[ET_TX_NDESC];
466 
467 	int			tbd_start_index;
468 	int			tbd_start_wrap;
469 	int			tbd_used;
470 };
471 
472 struct et_softc;
473 struct et_rxbuf_data;
474 typedef int	(*et_newbuf_t)(struct et_rxbuf_data *, int, int);
475 
476 struct et_rxbuf_data {
477 	struct et_rxbuf		rbd_buf[ET_RX_NDESC];
478 
479 	struct et_softc		*rbd_softc;
480 	struct et_rxdesc_ring	*rbd_ring;
481 
482 	int			rbd_bufsize;
483 	et_newbuf_t		rbd_newbuf;
484 };
485 
486 struct et_softc {
487 	device_t		sc_dev;
488 	struct ethercom		sc_ethercom;
489 	uint8_t			sc_enaddr[ETHER_ADDR_LEN];
490 	u_short			sc_if_flags;
491 	uint32_t		sc_flags;	/* ET_FLAG_ */
492 
493 	int			sc_mem_rid;
494 	struct resource		*sc_mem_res;
495 	bus_space_tag_t		sc_mem_bt;
496 	bus_space_handle_t	sc_mem_bh;
497 	bus_size_t		sc_mem_size;
498 	bus_dma_tag_t		sc_dmat;
499 	pci_chipset_tag_t	sc_pct;
500 	pcitag_t		sc_pcitag;
501 
502 	int			sc_irq_rid;
503 	struct resource		*sc_irq_res;
504 	void			*sc_irq_handle;
505 
506 	struct mii_data		sc_miibus;
507 	callout_t		sc_tick;
508 
509 	struct et_rxdesc_ring	sc_rx_ring[ET_RX_NRING];
510 	struct et_rxstat_ring	sc_rxstat_ring;
511 	struct et_rxstatus_data	sc_rx_status;
512 
513 	struct et_txdesc_ring	sc_tx_ring;
514 	struct et_txstatus_data	sc_tx_status;
515 	callout_t		sc_txtick;
516 
517 	bus_dmamap_t		sc_mbuf_tmp_dmap;
518 	struct et_rxbuf_data	sc_rx_data[ET_RX_NRING];
519 	struct et_txbuf_data	sc_tx_data;
520 
521 	uint32_t		sc_tx;
522 	uint32_t		sc_tx_intr;
523 
524 	/*
525 	 * Sysctl variables
526 	 */
527 	int			sc_rx_intr_npkts;
528 	int			sc_rx_intr_delay;
529 	int			sc_tx_intr_nsegs;
530 	uint32_t		sc_timer;
531 };
532 
533 #define	ET_FLAG_FASTETHER	0x0004
534 #define	ET_FLAG_TXRX_ENABLED	0x0100
535 #define	ET_FLAG_LINK		0x8000
536 
537 #endif	/* !_IF_ETREG_H */
538