xref: /dragonfly/sys/dev/netif/xl/if_xlreg.h (revision cfd1aba3)
1 /*
2  * Copyright (c) 1997, 1998
3  *	Bill Paul <wpaul@ctr.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: src/sys/pci/if_xlreg.h,v 1.25.2.8 2003/08/10 21:55:57 silby Exp $
33  * $DragonFly: src/sys/dev/netif/xl/if_xlreg.h,v 1.8 2005/09/27 02:41:29 sephe Exp $
34  */
35 
36 #define XL_EE_READ	0x0080	/* read, 5 bit address */
37 #define XL_EE_WRITE	0x0040	/* write, 5 bit address */
38 #define XL_EE_ERASE	0x00c0	/* erase, 5 bit address */
39 #define XL_EE_EWEN	0x0030	/* erase, no data needed */
40 #define XL_EE_8BIT_READ	0x0200	/* read, 8 bit address */
41 #define XL_EE_BUSY	0x8000
42 
43 #define XL_EE_EADDR0	0x00	/* station address, first word */
44 #define XL_EE_EADDR1	0x01	/* station address, next word, */
45 #define XL_EE_EADDR2	0x02	/* station address, last word */
46 #define XL_EE_PRODID	0x03	/* product ID code */
47 #define XL_EE_MDATA_DATE	0x04	/* manufacturing data, date */
48 #define XL_EE_MDATA_DIV		0x05	/* manufacturing data, division */
49 #define XL_EE_MDATA_PCODE	0x06	/* manufacturing data, product code */
50 #define XL_EE_MFG_ID	0x07
51 #define XL_EE_PCI_PARM	0x08
52 #define XL_EE_ROM_ONFO	0x09
53 #define XL_EE_OEM_ADR0	0x0A
54 #define	XL_EE_OEM_ADR1	0x0B
55 #define XL_EE_OEM_ADR2	0x0C
56 #define XL_EE_SOFTINFO1	0x0D
57 #define XL_EE_COMPAT	0x0E
58 #define XL_EE_SOFTINFO2	0x0F
59 #define XL_EE_CAPS	0x10	/* capabilities word */
60 #define XL_EE_RSVD0	0x11
61 #define XL_EE_ICFG_0	0x12
62 #define XL_EE_ICFG_1	0x13
63 #define XL_EE_RSVD1	0x14
64 #define XL_EE_SOFTINFO3	0x15
65 #define XL_EE_RSVD_2	0x16
66 
67 /*
68  * Bits in the capabilities word
69  */
70 #define XL_CAPS_PNP		0x0001
71 #define XL_CAPS_FULL_DUPLEX	0x0002
72 #define XL_CAPS_LARGE_PKTS	0x0004
73 #define XL_CAPS_SLAVE_DMA	0x0008
74 #define XL_CAPS_SECOND_DMA	0x0010
75 #define XL_CAPS_FULL_BM		0x0020
76 #define XL_CAPS_FRAG_BM		0x0040
77 #define XL_CAPS_CRC_PASSTHRU	0x0080
78 #define XL_CAPS_TXDONE		0x0100
79 #define XL_CAPS_NO_TXLENGTH	0x0200
80 #define XL_CAPS_RX_REPEAT	0x0400
81 #define XL_CAPS_SNOOPING	0x0800
82 #define XL_CAPS_100MBPS		0x1000
83 #define XL_CAPS_PWRMGMT		0x2000
84 
85 #define XL_PACKET_SIZE 1540
86 #ifndef ETHER_VLAN_ENCAP_LEN
87 #define ETHER_VLAN_ENCAP_LEN   4
88 #endif
89 #define XL_MAX_FRAMELEN        (ETHER_MAX_LEN + ETHER_VLAN_ENCAP_LEN)
90 
91 /*
92  * Register layouts.
93  */
94 #define XL_COMMAND		0x0E
95 #define XL_STATUS		0x0E
96 
97 #define XL_TX_STATUS		0x1B
98 #define XL_TX_FREE		0x1C
99 #define XL_DMACTL		0x20
100 #define XL_DOWNLIST_PTR		0x24
101 #define XL_DOWN_POLL		0x2D /* 3c90xB only */
102 #define XL_TX_FREETHRESH	0x2F
103 #define XL_UPLIST_PTR		0x38
104 #define XL_UPLIST_STATUS	0x30
105 #define XL_UP_POLL		0x3D /* 3c90xB only */
106 
107 #define XL_PKTSTAT_UP_STALLED		0x00002000
108 #define XL_PKTSTAT_UP_ERROR		0x00004000
109 #define XL_PKTSTAT_UP_CMPLT		0x00008000
110 
111 #define XL_DMACTL_DN_CMPLT_REQ		0x00000002
112 #define XL_DMACTL_DOWN_STALLED		0x00000004
113 #define XL_DMACTL_UP_CMPLT		0x00000008
114 #define XL_DMACTL_DOWN_CMPLT		0x00000010
115 #define XL_DMACTL_UP_RX_EARLY		0x00000020
116 #define XL_DMACTL_ARM_COUNTDOWN		0x00000040
117 #define XL_DMACTL_DOWN_INPROG		0x00000080
118 #define XL_DMACTL_COUNTER_SPEED		0x00000100
119 #define XL_DMACTL_DOWNDOWN_MODE		0x00000200
120 #define XL_DMACTL_TARGET_ABORT		0x40000000
121 #define XL_DMACTL_MASTER_ABORT		0x80000000
122 
123 /*
124  * Command codes. Some command codes require that we wait for
125  * the CMD_BUSY flag to clear. Those codes are marked as 'mustwait.'
126  */
127 #define XL_CMD_RESET		0x0000	/* mustwait */
128 #define XL_CMD_WINSEL		0x0800
129 #define XL_CMD_COAX_START	0x1000
130 #define XL_CMD_RX_DISABLE	0x1800
131 #define XL_CMD_RX_ENABLE	0x2000
132 #define XL_CMD_RX_RESET		0x2800	/* mustwait */
133 #define XL_CMD_UP_STALL		0x3000	/* mustwait */
134 #define XL_CMD_UP_UNSTALL	0x3001
135 #define XL_CMD_DOWN_STALL	0x3002	/* mustwait */
136 #define XL_CMD_DOWN_UNSTALL	0x3003
137 #define XL_CMD_RX_DISCARD	0x4000
138 #define XL_CMD_TX_ENABLE	0x4800
139 #define XL_CMD_TX_DISABLE	0x5000
140 #define XL_CMD_TX_RESET		0x5800	/* mustwait */
141 #define XL_CMD_INTR_FAKE	0x6000
142 #define XL_CMD_INTR_ACK		0x6800
143 #define XL_CMD_INTR_ENB		0x7000
144 #define XL_CMD_STAT_ENB		0x7800
145 #define XL_CMD_RX_SET_FILT	0x8000
146 #define XL_CMD_RX_SET_THRESH	0x8800
147 #define XL_CMD_TX_SET_THRESH	0x9000
148 #define XL_CMD_TX_SET_START	0x9800
149 #define XL_CMD_DMA_UP		0xA000
150 #define XL_CMD_DMA_STOP		0xA001
151 #define XL_CMD_STATS_ENABLE	0xA800
152 #define XL_CMD_STATS_DISABLE	0xB000
153 #define XL_CMD_COAX_STOP	0xB800
154 
155 #define XL_CMD_SET_TX_RECLAIM	0xC000 /* 3c905B only */
156 #define XL_CMD_RX_SET_HASH	0xC800 /* 3c905B only */
157 
158 #define XL_HASH_SET		0x0400
159 #define XL_HASHFILT_SIZE	256
160 
161 /*
162  * status codes
163  * Note that bits 15 to 13 indicate the currently visible register window
164  * which may be anything from 0 to 7.
165  */
166 #define XL_STAT_INTLATCH	0x0001	/* 0 */
167 #define XL_STAT_ADFAIL		0x0002	/* 1 */
168 #define XL_STAT_TX_COMPLETE	0x0004	/* 2 */
169 #define XL_STAT_TX_AVAIL	0x0008	/* 3 first generation */
170 #define XL_STAT_RX_COMPLETE	0x0010  /* 4 */
171 #define XL_STAT_RX_EARLY	0x0020	/* 5 */
172 #define XL_STAT_INTREQ		0x0040  /* 6 */
173 #define XL_STAT_STATSOFLOW	0x0080  /* 7 */
174 #define XL_STAT_DMADONE		0x0100	/* 8 first generation */
175 #define XL_STAT_LINKSTAT	0x0100	/* 8 3c509B */
176 #define XL_STAT_DOWN_COMPLETE	0x0200	/* 9 */
177 #define XL_STAT_UP_COMPLETE	0x0400	/* 10 */
178 #define XL_STAT_DMABUSY		0x0800	/* 11 first generation */
179 #define XL_STAT_CMDBUSY		0x1000  /* 12 */
180 
181 /*
182  * Interrupts we normally want enabled.
183  */
184 #define XL_INTRS							\
185 	(XL_STAT_UP_COMPLETE|XL_STAT_STATSOFLOW|XL_STAT_ADFAIL|		\
186 	 XL_STAT_DOWN_COMPLETE|XL_STAT_TX_COMPLETE|XL_STAT_INTLATCH)
187 
188 /*
189  * Window 0 registers
190  */
191 #define XL_W0_EE_DATA		0x0C
192 #define XL_W0_EE_CMD		0x0A
193 #define XL_W0_RSRC_CFG		0x08
194 #define XL_W0_ADDR_CFG		0x06
195 #define XL_W0_CFG_CTRL		0x04
196 
197 #define XL_W0_PROD_ID		0x02
198 #define XL_W0_MFG_ID		0x00
199 
200 /*
201  * Window 1
202  */
203 
204 #define XL_W1_TX_FIFO		0x10
205 
206 #define XL_W1_FREE_TX		0x0C
207 #define XL_W1_TX_STATUS		0x0B
208 #define XL_W1_TX_TIMER		0x0A
209 #define XL_W1_RX_STATUS		0x08
210 #define XL_W1_RX_FIFO		0x00
211 
212 /*
213  * RX status codes
214  */
215 #define XL_RXSTATUS_OVERRUN	0x01
216 #define XL_RXSTATUS_RUNT	0x02
217 #define XL_RXSTATUS_ALIGN	0x04
218 #define XL_RXSTATUS_CRC		0x08
219 #define XL_RXSTATUS_OVERSIZE	0x10
220 #define XL_RXSTATUS_DRIBBLE	0x20
221 
222 /*
223  * TX status codes
224  */
225 #define XL_TXSTATUS_RECLAIM	0x02 /* 3c905B only */
226 #define XL_TXSTATUS_OVERFLOW	0x04
227 #define XL_TXSTATUS_MAXCOLS	0x08
228 #define XL_TXSTATUS_UNDERRUN	0x10
229 #define XL_TXSTATUS_JABBER	0x20
230 #define XL_TXSTATUS_INTREQ	0x40
231 #define XL_TXSTATUS_COMPLETE	0x80
232 
233 /*
234  * Window 2
235  */
236 #define XL_W2_RESET_OPTIONS	0x0C	/* 3c905B only */
237 #define XL_W2_STATION_MASK_HI	0x0A
238 #define XL_W2_STATION_MASK_MID	0x08
239 #define XL_W2_STATION_MASK_LO	0x06
240 #define XL_W2_STATION_ADDR_HI	0x04
241 #define XL_W2_STATION_ADDR_MID	0x02
242 #define XL_W2_STATION_ADDR_LO	0x00
243 
244 #define XL_RESETOPT_FEATUREMASK	0x0001|0x0002|0x004
245 #define XL_RESETOPT_D3RESETDIS	0x0008
246 #define XL_RESETOPT_DISADVFD	0x0010
247 #define XL_RESETOPT_DISADV100	0x0020
248 #define XL_RESETOPT_DISAUTONEG	0x0040
249 #define XL_RESETOPT_DEBUGMODE	0x0080
250 #define XL_RESETOPT_FASTAUTO	0x0100
251 #define XL_RESETOPT_FASTEE	0x0200
252 #define XL_RESETOPT_FORCEDCONF	0x0400
253 #define XL_RESETOPT_TESTPDTPDR	0x0800
254 #define XL_RESETOPT_TEST100TX	0x1000
255 #define XL_RESETOPT_TEST100RX	0x2000
256 
257 #define XL_RESETOPT_INVERT_LED	0x0010
258 #define XL_RESETOPT_INVERT_MII	0x4000
259 
260 /*
261  * Window 3 (fifo management)
262  */
263 #define XL_W3_INTERNAL_CFG	0x00
264 #define XL_W3_MAXPKTSIZE	0x04    /* 3c905B only */
265 #define XL_W3_RESET_OPT		0x08
266 #define XL_W3_FREE_TX		0x0C
267 #define XL_W3_FREE_RX		0x0A
268 #define XL_W3_MAC_CTRL		0x06
269 
270 #define XL_ICFG_CONNECTOR_MASK	0x00F00000
271 #define XL_ICFG_CONNECTOR_BITS	20
272 
273 #define XL_ICFG_RAMSIZE_MASK	0x00000007
274 #define XL_ICFG_RAMWIDTH	0x00000008
275 #define XL_ICFG_ROMSIZE_MASK	(0x00000040|0x00000080)
276 #define XL_ICFG_DISABLE_BASSD	0x00000100
277 #define XL_ICFG_RAMLOC		0x00000200
278 #define XL_ICFG_RAMPART		(0x00010000|0x00020000)
279 #define XL_ICFG_XCVRSEL		(0x00100000|0x00200000|0x00400000)
280 #define XL_ICFG_AUTOSEL		0x01000000
281 
282 #define XL_XCVR_10BT		0x00
283 #define XL_XCVR_AUI		0x01
284 #define XL_XCVR_RSVD_0		0x02
285 #define XL_XCVR_COAX		0x03
286 #define XL_XCVR_100BTX		0x04
287 #define XL_XCVR_100BFX		0x05
288 #define XL_XCVR_MII		0x06
289 #define XL_XCVR_RSVD_1		0x07
290 #define XL_XCVR_AUTO		0x08	/* 3c905B only */
291 
292 #define XL_MACCTRL_DEFER_EXT_END	0x0001
293 #define XL_MACCTRL_DEFER_0		0x0002
294 #define XL_MACCTRL_DEFER_1		0x0004
295 #define XL_MACCTRL_DEFER_2		0x0008
296 #define XL_MACCTRL_DEFER_3		0x0010
297 #define XL_MACCTRL_DUPLEX		0x0020
298 #define XL_MACCTRL_ALLOW_LARGE_PACK	0x0040
299 #define XL_MACCTRL_EXTEND_AFTER_COL	0x0080 (3c905B only)
300 #define XL_MACCTRL_FLOW_CONTROL_ENB	0x0100 (3c905B only)
301 #define XL_MACCTRL_VLT_END		0x0200 (3c905B only)
302 
303 /*
304  * The 'reset options' register contains power-on reset values
305  * loaded from the EEPROM. This includes the supported media
306  * types on the card. It is also known as the media options register.
307  */
308 #define XL_W3_MEDIA_OPT		0x08
309 
310 #define XL_MEDIAOPT_BT4		0x0001	/* MII */
311 #define XL_MEDIAOPT_BTX		0x0002	/* on-chip */
312 #define XL_MEDIAOPT_BFX		0x0004	/* on-chip */
313 #define XL_MEDIAOPT_BT		0x0008	/* on-chip */
314 #define XL_MEDIAOPT_BNC		0x0010	/* on-chip */
315 #define XL_MEDIAOPT_AUI		0x0020	/* on-chip */
316 #define XL_MEDIAOPT_MII		0x0040	/* MII */
317 #define XL_MEDIAOPT_VCO		0x0100	/* 1st gen chip only */
318 
319 #define XL_MEDIAOPT_10FL	0x0100	/* 3x905B only, on-chip */
320 #define XL_MEDIAOPT_MASK	0x01FF
321 
322 /*
323  * Window 4 (diagnostics)
324  */
325 #define XL_W4_UPPERBYTESOK	0x0D
326 #define XL_W4_BADSSD		0x0C
327 #define XL_W4_MEDIA_STATUS	0x0A
328 #define XL_W4_PHY_MGMT		0x08
329 #define XL_W4_NET_DIAG		0x06
330 #define XL_W4_FIFO_DIAG		0x04
331 #define XL_W4_VCO_DIAG		0x02
332 
333 #define XL_W4_CTRLR_STAT	0x08
334 #define XL_W4_TX_DIAG		0x00
335 
336 #define XL_MII_CLK		0x01
337 #define XL_MII_DATA		0x02
338 #define XL_MII_DIR		0x04
339 
340 #define XL_MEDIA_SQE		0x0008
341 #define XL_MEDIA_10TP		0x00C0
342 #define XL_MEDIA_LNK		0x0080
343 #define XL_MEDIA_LNKBEAT	0x0800
344 
345 #define XL_MEDIASTAT_CRCSTRIP	0x0004
346 #define XL_MEDIASTAT_SQEENB	0x0008
347 #define XL_MEDIASTAT_COLDET	0x0010
348 #define XL_MEDIASTAT_CARRIER	0x0020
349 #define XL_MEDIASTAT_JABGUARD	0x0040
350 #define XL_MEDIASTAT_LINKBEAT	0x0080
351 #define XL_MEDIASTAT_JABDETECT	0x0200
352 #define XL_MEDIASTAT_POLREVERS	0x0400
353 #define XL_MEDIASTAT_LINKDETECT	0x0800
354 #define XL_MEDIASTAT_TXINPROG	0x1000
355 #define XL_MEDIASTAT_DCENB	0x4000
356 #define XL_MEDIASTAT_AUIDIS	0x8000
357 
358 #define XL_NETDIAG_TEST_LOWVOLT		0x0001
359 #define XL_NETDIAG_ASIC_REVMASK		(0x0002|0x0004|0x0008|0x0010|0x0020)
360 #define XL_NETDIAG_UPPER_BYTES_ENABLE	0x0040
361 #define XL_NETDIAG_STATS_ENABLED	0x0080
362 #define XL_NETDIAG_TX_FATALERR		0x0100
363 #define XL_NETDIAG_TRANSMITTING		0x0200
364 #define XL_NETDIAG_RX_ENABLED		0x0400
365 #define XL_NETDIAG_TX_ENABLED		0x0800
366 #define XL_NETDIAG_FIFO_LOOPBACK	0x1000
367 #define XL_NETDIAG_MAC_LOOPBACK		0x2000
368 #define XL_NETDIAG_ENDEC_LOOPBACK	0x4000
369 #define XL_NETDIAG_EXTERNAL_LOOP	0x8000
370 
371 /*
372  * Window 5
373  */
374 #define XL_W5_STAT_ENB		0x0C
375 #define XL_W5_INTR_ENB		0x0A
376 #define XL_W5_RECLAIM_THRESH	0x09	/* 3c905B only */
377 #define XL_W5_RX_FILTER		0x08
378 #define XL_W5_RX_EARLYTHRESH	0x06
379 #define XL_W5_TX_AVAILTHRESH	0x02
380 #define XL_W5_TX_STARTTHRESH	0x00
381 
382 /*
383  * RX filter bits
384  */
385 #define XL_RXFILTER_INDIVIDUAL	0x01
386 #define XL_RXFILTER_ALLMULTI	0x02
387 #define XL_RXFILTER_BROADCAST	0x04
388 #define XL_RXFILTER_ALLFRAMES	0x08
389 #define XL_RXFILTER_MULTIHASH	0x10 /* 3c905B only */
390 
391 /*
392  * Window 6 (stats)
393  */
394 #define XL_W6_TX_BYTES_OK	0x0C
395 #define XL_W6_RX_BYTES_OK	0x0A
396 #define XL_W6_UPPER_FRAMES_OK	0x09
397 #define XL_W6_DEFERRED		0x08
398 #define XL_W6_RX_OK		0x07
399 #define XL_W6_TX_OK		0x06
400 #define XL_W6_RX_OVERRUN	0x05
401 #define XL_W6_COL_LATE		0x04
402 #define XL_W6_COL_SINGLE	0x03
403 #define XL_W6_COL_MULTIPLE	0x02
404 #define XL_W6_SQE_ERRORS	0x01
405 #define XL_W6_CARRIER_LOST	0x00
406 
407 /*
408  * Window 7 (bus master control)
409  */
410 #define XL_W7_BM_ADDR		0x00
411 #define XL_W7_BM_LEN		0x06
412 #define XL_W7_BM_STATUS		0x0B
413 #define XL_W7_BM_TIMEr		0x0A
414 
415 /*
416  * bus master control registers
417  */
418 #define XL_BM_PKTSTAT		0x20
419 #define XL_BM_DOWNLISTPTR	0x24
420 #define XL_BM_FRAGADDR		0x28
421 #define XL_BM_FRAGLEN		0x2C
422 #define XL_BM_TXFREETHRESH	0x2F
423 #define XL_BM_UPPKTSTAT		0x30
424 #define XL_BM_UPLISTPTR		0x38
425 
426 #define XL_LAST_FRAG		0x80000000
427 
428 #define XL_MAXFRAGS		63
429 #define XL_RX_LIST_CNT		128
430 #define XL_TX_LIST_CNT		256
431 #define XL_RX_LIST_SZ		XL_RX_LIST_CNT * sizeof(struct xl_list_onefrag)
432 #define XL_TX_LIST_SZ		XL_TX_LIST_CNT * sizeof(struct xl_list)
433 #define XL_MIN_FRAMELEN		60
434 #define ETHER_ALIGN		2
435 #define XL_INC(x, y)		(x) = (x + 1) % y
436 
437 /*
438  * Boomerang/Cyclone TX/RX list structure.
439  * For the TX lists, bits 0 to 12 of the status word indicate
440  * length.
441  * This looks suspiciously like the ThunderLAN, doesn't it.
442  */
443 struct xl_frag {
444 	u_int32_t		xl_addr;	/* 63 addr/len pairs */
445 	u_int32_t		xl_len;
446 };
447 
448 struct xl_list {
449 	u_int32_t		xl_next;	/* final entry has 0 nextptr */
450 	u_int32_t		xl_status;
451 	struct xl_frag		xl_frag[XL_MAXFRAGS];
452 };
453 
454 struct xl_list_onefrag {
455 	u_int32_t		xl_next;	/* final entry has 0 nextptr */
456 	u_int32_t		xl_status;
457 	struct xl_frag		xl_frag;
458 };
459 
460 struct xl_list_data {
461 	struct xl_list_onefrag	*xl_rx_list;
462 	struct xl_list		*xl_tx_list;
463 	u_int32_t		xl_rx_dmaaddr;
464 	bus_dma_tag_t		xl_rx_tag;
465 	bus_dmamap_t		xl_rx_dmamap;
466 	u_int32_t		xl_tx_dmaaddr;
467 	bus_dma_tag_t		xl_tx_tag;
468 	bus_dmamap_t		xl_tx_dmamap;
469 };
470 
471 struct xl_chain {
472 	struct xl_list		*xl_ptr;
473 	struct mbuf		*xl_mbuf;
474 	struct xl_chain		*xl_next;
475 	struct xl_chain		*xl_prev;	/* 3c90xB only */
476 	u_int32_t		xl_phys;
477 	bus_dmamap_t		xl_map;
478 };
479 
480 struct xl_chain_onefrag {
481 	struct xl_list_onefrag	*xl_ptr;
482 	struct mbuf		*xl_mbuf;
483 	struct xl_chain_onefrag	*xl_next;
484 	bus_dmamap_t		xl_map;
485 };
486 
487 struct xl_chain_data {
488 	struct xl_chain_onefrag	xl_rx_chain[XL_RX_LIST_CNT];
489 	struct xl_chain		xl_tx_chain[XL_TX_LIST_CNT];
490 
491 	struct xl_chain_onefrag	*xl_rx_head;
492 
493 	/* 3c90x "boomerang" queuing stuff */
494 	struct xl_chain		*xl_tx_head;
495 	struct xl_chain		*xl_tx_tail;
496 	struct xl_chain		*xl_tx_free;
497 
498 	/* 3c90xB "cyclone/hurricane/tornado" stuff */
499 	int			xl_tx_prod;
500 	int			xl_tx_cons;
501 	int			xl_tx_cnt;
502 };
503 
504 #define XL_RXSTAT_LENMASK	0x00001FFF
505 #define XL_RXSTAT_UP_ERROR	0x00004000
506 #define XL_RXSTAT_UP_CMPLT	0x00008000
507 #define XL_RXSTAT_UP_OVERRUN	0x00010000
508 #define XL_RXSTAT_RUNT		0x00020000
509 #define XL_RXSTAT_ALIGN		0x00040000
510 #define XL_RXSTAT_CRC		0x00080000
511 #define XL_RXSTAT_OVERSIZE	0x00100000
512 #define XL_RXSTAT_DRIBBLE	0x00800000
513 #define XL_RXSTAT_UP_OFLOW	0x01000000
514 #define XL_RXSTAT_IPCKERR	0x02000000	/* 3c905B only */
515 #define XL_RXSTAT_TCPCKERR	0x04000000	/* 3c905B only */
516 #define XL_RXSTAT_UDPCKERR	0x08000000	/* 3c905B only */
517 #define XL_RXSTAT_BUFEN		0x10000000	/* 3c905B only */
518 #define XL_RXSTAT_IPCKOK	0x20000000	/* 3c905B only */
519 #define XL_RXSTAT_TCPCOK	0x40000000	/* 3c905B only */
520 #define XL_RXSTAT_UDPCKOK	0x80000000	/* 3c905B only */
521 
522 #define XL_TXSTAT_LENMASK	0x00001FFF
523 #define XL_TXSTAT_CRCDIS	0x00002000
524 #define XL_TXSTAT_TX_INTR	0x00008000
525 #define XL_TXSTAT_DL_COMPLETE	0x00010000
526 #define XL_TXSTAT_IPCKSUM	0x02000000	/* 3c905B only */
527 #define XL_TXSTAT_TCPCKSUM	0x04000000	/* 3c905B only */
528 #define XL_TXSTAT_UDPCKSUM	0x08000000	/* 3c905B only */
529 #define XL_TXSTAT_RND_DEFEAT	0x10000000	/* 3c905B only */
530 #define XL_TXSTAT_EMPTY		0x20000000	/* 3c905B only */
531 #define XL_TXSTAT_DL_INTR	0x80000000
532 
533 #define XL_CAPABILITY_BM	0x20
534 
535 struct xl_type {
536 	u_int16_t		xl_vid;
537 	u_int16_t		xl_did;
538 	char			*xl_name;
539 };
540 
541 struct xl_mii_frame {
542 	u_int8_t		mii_stdelim;
543 	u_int8_t		mii_opcode;
544 	u_int8_t		mii_phyaddr;
545 	u_int8_t		mii_regaddr;
546 	u_int8_t		mii_turnaround;
547 	u_int16_t		mii_data;
548 };
549 
550 /*
551  * MII constants
552  */
553 #define XL_MII_STARTDELIM	0x01
554 #define XL_MII_READOP		0x02
555 #define XL_MII_WRITEOP		0x01
556 #define XL_MII_TURNAROUND	0x02
557 
558 /*
559  * The 3C905B adapters implement a few features that we want to
560  * take advantage of, namely the multicast hash filter. With older
561  * chips, you only have the option of turning on reception of all
562  * multicast frames, which is kind of lame.
563  *
564  * We also use this to decide on a transmit strategy. For the 3c90xB
565  * cards, we can use polled descriptor mode, which reduces CPU overhead.
566  */
567 #define XL_TYPE_905B	1
568 #define XL_TYPE_90X	2
569 
570 #define XL_FLAG_FUNCREG			0x0001
571 #define XL_FLAG_PHYOK			0x0002
572 #define XL_FLAG_EEPROM_OFFSET_30	0x0004
573 #define XL_FLAG_WEIRDRESET		0x0008
574 #define XL_FLAG_8BITROM			0x0010
575 #define XL_FLAG_INVERT_LED_PWR		0x0020
576 #define XL_FLAG_INVERT_MII_PWR		0x0040
577 #define XL_FLAG_NO_XCVR_PWR		0x0080
578 #define XL_FLAG_USE_MMIO		0x0100
579 
580 #define XL_NO_XCVR_PWR_MAGICBITS	0x0900
581 
582 struct xl_softc {
583 	struct arpcom		arpcom;		/* interface info */
584 	struct ifmedia		ifmedia;	/* media info */
585 	bus_space_handle_t	xl_bhandle;
586 	bus_space_tag_t		xl_btag;
587 	void			*xl_intrhand;
588 	struct resource		*xl_irq;
589 	struct resource		*xl_res;
590 	device_t		xl_miibus;
591 	struct xl_type		*xl_info;	/* 3Com adapter info */
592 	bus_dma_tag_t		xl_parent_tag;
593 	bus_dma_tag_t		xl_tx_mtag;
594 	bus_dma_tag_t		xl_rx_mtag;
595 	bus_dmamap_t		xl_tmpmap;      /* spare RX DMA map */
596 	u_int8_t		xl_type;
597 	u_int32_t		xl_xcvr;
598 	u_int16_t		xl_media;
599 	u_int16_t		xl_caps;
600 	u_int8_t		xl_stats_no_timeout;
601 	u_int16_t		xl_tx_thresh;
602 	int			xl_if_flags;
603 	struct ifpoll_compat	xl_npoll;
604 	struct xl_list_data	xl_ldata;
605 	struct xl_chain_data	xl_cdata;
606 	struct callout		xl_stat_timer;
607 	int			xl_flags;
608 	struct resource		*xl_fres;
609 	bus_space_handle_t	xl_fhandle;
610 	bus_space_tag_t		xl_ftag;
611 };
612 
613 #define xl_rx_goodframes(x) \
614 	((x.xl_upper_frames_ok & 0x03) << 8) | x.xl_rx_frames_ok
615 
616 #define xl_tx_goodframes(x) \
617 	((x.xl_upper_frames_ok & 0x30) << 4) | x.xl_tx_frames_ok
618 
619 struct xl_stats {
620 	u_int8_t		xl_carrier_lost;
621 	u_int8_t		xl_sqe_errs;
622 	u_int8_t		xl_tx_multi_collision;
623 	u_int8_t		xl_tx_single_collision;
624 	u_int8_t		xl_tx_late_collision;
625 	u_int8_t		xl_rx_overrun;
626 	u_int8_t		xl_tx_frames_ok;
627 	u_int8_t		xl_rx_frames_ok;
628 	u_int8_t		xl_tx_deferred;
629 	u_int8_t		xl_upper_frames_ok;
630 	u_int16_t		xl_rx_bytes_ok;
631 	u_int16_t		xl_tx_bytes_ok;
632 	u_int16_t		status;
633 };
634 
635 /*
636  * register space access macros
637  */
638 #define CSR_WRITE_4(sc, reg, val)	\
639 	bus_space_write_4(sc->xl_btag, sc->xl_bhandle, reg, val)
640 #define CSR_WRITE_2(sc, reg, val)	\
641 	bus_space_write_2(sc->xl_btag, sc->xl_bhandle, reg, val)
642 #define CSR_WRITE_1(sc, reg, val)	\
643 	bus_space_write_1(sc->xl_btag, sc->xl_bhandle, reg, val)
644 
645 #define CSR_READ_4(sc, reg)		\
646 	bus_space_read_4(sc->xl_btag, sc->xl_bhandle, reg)
647 #define CSR_READ_2(sc, reg)		\
648 	bus_space_read_2(sc->xl_btag, sc->xl_bhandle, reg)
649 #define CSR_READ_1(sc, reg)		\
650 	bus_space_read_1(sc->xl_btag, sc->xl_bhandle, reg)
651 
652 #define XL_SEL_WIN(x)	\
653 	CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_WINSEL | x)
654 #define XL_TIMEOUT		1000
655 
656 /*
657  * General constants that are fun to know.
658  *
659  * 3Com PCI vendor ID
660  */
661 #define	TC_VENDORID		0x10B7
662 
663 /*
664  * 3Com chip device IDs.
665  */
666 #define	TC_DEVICEID_BOOMERANG_10BT		0x9000
667 #define TC_DEVICEID_BOOMERANG_10BT_COMBO	0x9001
668 #define TC_DEVICEID_BOOMERANG_10_100BT		0x9050
669 #define TC_DEVICEID_BOOMERANG_100BT4		0x9051
670 #define TC_DEVICEID_KRAKATOA_10BT		0x9004
671 #define TC_DEVICEID_KRAKATOA_10BT_COMBO		0x9005
672 #define TC_DEVICEID_KRAKATOA_10BT_TPC		0x9006
673 #define TC_DEVICEID_CYCLONE_10FL		0x900A
674 #define TC_DEVICEID_HURRICANE_10_100BT		0x9055
675 #define TC_DEVICEID_CYCLONE_10_100BT4		0x9056
676 #define TC_DEVICEID_CYCLONE_10_100_COMBO	0x9058
677 #define TC_DEVICEID_CYCLONE_10_100FX		0x905A
678 #define TC_DEVICEID_TORNADO_10_100BT		0x9200
679 #define TC_DEVICEID_TORNADO_10_100BT_920B	0x9201
680 #define TC_DEVICEID_HURRICANE_10_100BT_SERV	0x9800
681 #define TC_DEVICEID_TORNADO_10_100BT_SERV	0x9805
682 #define TC_DEVICEID_HURRICANE_SOHO100TX		0x7646
683 #define TC_DEVICEID_TORNADO_HOMECONNECT		0x4500
684 #define TC_DEVICEID_HURRICANE_555		0x5055
685 #define TC_DEVICEID_HURRICANE_556		0x6055
686 #define TC_DEVICEID_HURRICANE_556B		0x6056
687 #define TC_DEVICEID_HURRICANE_575A		0x5057
688 #define TC_DEVICEID_HURRICANE_575B		0x5157
689 #define TC_DEVICEID_HURRICANE_575C		0x5257
690 #define TC_DEVICEID_HURRICANE_656		0x6560
691 #define TC_DEVICEID_HURRICANE_656B		0x6562
692 #define TC_DEVICEID_TORNADO_656C		0x6564
693 
694 /*
695  * PCI low memory base and low I/O base register, and
696  * other PCI registers. Note: some are only available on
697  * the 3c905B, in particular those that related to power management.
698  */
699 
700 #define XL_PCI_VENDOR_ID	0x00
701 #define XL_PCI_DEVICE_ID	0x02
702 #define XL_PCI_COMMAND		0x04
703 #define XL_PCI_STATUS		0x06
704 #define XL_PCI_CLASSCODE	0x09
705 #define XL_PCI_LATENCY_TIMER	0x0D
706 #define XL_PCI_HEADER_TYPE	0x0E
707 #define XL_PCI_LOIO		0x10
708 #define XL_PCI_LOMEM		0x14
709 #define XL_PCI_FUNCMEM		0x18
710 #define XL_PCI_BIOSROM		0x30
711 #define XL_PCI_INTLINE		0x3C
712 #define XL_PCI_INTPIN		0x3D
713 #define XL_PCI_MINGNT		0x3E
714 #define XL_PCI_MINLAT		0x0F
715 #define XL_PCI_RESETOPT		0x48
716 #define XL_PCI_EEPROM_DATA	0x4C
717 
718 /* 3c905B-only registers */
719 #define XL_PCI_CAPID		0xDC /* 8 bits */
720 #define XL_PCI_NEXTPTR		0xDD /* 8 bits */
721 #define XL_PCI_PWRMGMTCAP	0xDE /* 16 bits */
722 #define XL_PCI_PWRMGMTCTRL	0xE0 /* 16 bits */
723 
724 #define XL_PSTATE_MASK		0x0003
725 #define XL_PSTATE_D0		0x0000
726 #define XL_PSTATE_D1		0x0002
727 #define XL_PSTATE_D2		0x0002
728 #define XL_PSTATE_D3		0x0003
729 #define XL_PME_EN		0x0010
730 #define XL_PME_STATUS		0x8000
731 
732 #ifndef IFM_10_FL
733 #define IFM_10_FL		13		/* 10baseFL - Fiber */
734 #endif
735 
736 #define XL_LIST_ALIGN		8
737