xref: /openbsd/sys/dev/pci/if_dc_pci.c (revision d415bd75)
1 /*	$OpenBSD: if_dc_pci.c,v 1.78 2022/03/11 18:00:45 mpi Exp $	*/
2 
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: src/sys/pci/if_dc.c,v 1.5 2000/01/12 22:24:05 wpaul Exp $
35  */
36 
37 #include "bpfilter.h"
38 
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/mbuf.h>
42 #include <sys/socket.h>
43 #include <sys/ioctl.h>
44 #include <sys/errno.h>
45 #include <sys/timeout.h>
46 #include <sys/malloc.h>
47 #include <sys/kernel.h>
48 #include <sys/device.h>
49 
50 #include <net/if.h>
51 
52 #include <netinet/in.h>
53 #include <netinet/if_ether.h>
54 
55 #include <net/if_media.h>
56 
57 #if NBPFILTER > 0
58 #include <net/bpf.h>
59 #endif
60 
61 #include <dev/mii/miivar.h>
62 
63 #include <dev/pci/pcireg.h>
64 #include <dev/pci/pcivar.h>
65 #include <dev/pci/pcidevs.h>
66 
67 #ifdef __sparc64__
68 #include <dev/ofw/openfirm.h>
69 #endif
70 
71 #ifndef __hppa__
72 #define DC_USEIOSPACE
73 #endif
74 
75 #include <dev/ic/dcreg.h>
76 
77 /*
78  * Various supported device vendors/types and their names.
79  */
80 struct dc_type dc_devs[] = {
81 	{ PCI_VENDOR_DEC, PCI_PRODUCT_DEC_21140 },
82 	{ PCI_VENDOR_DEC, PCI_PRODUCT_DEC_21142 },
83 	{ PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9009 },
84 	{ PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9100 },
85 	{ PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9102 },
86 	{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_ADM9511 },
87 	{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_ADM9513 },
88 	{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_AL981 },
89 	{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_AN983 },
90 	{ PCI_VENDOR_ASIX, PCI_PRODUCT_ASIX_AX88140A },
91 	{ PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98713 },
92 	{ PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98715 },
93 	{ PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98727 },
94 	{ PCI_VENDOR_COMPEX, PCI_PRODUCT_COMPEX_98713 },
95 	{ PCI_VENDOR_LITEON, PCI_PRODUCT_LITEON_PNIC },
96 	{ PCI_VENDOR_LITEON, PCI_PRODUCT_LITEON_PNICII },
97 	{ PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_EN1217 },
98 	{ PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_EN2242 },
99 	{ PCI_VENDOR_CONEXANT, PCI_PRODUCT_CONEXANT_RS7112 },
100 	{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_21145 },
101 	{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CSHO100BTX },
102 	{ PCI_VENDOR_MICROSOFT, PCI_PRODUCT_MICROSOFT_MN130 },
103 	{ PCI_VENDOR_XIRCOM, PCI_PRODUCT_XIRCOM_X3201_3_21143 },
104 	{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_AN985 },
105 	{ PCI_VENDOR_ABOCOM, PCI_PRODUCT_ABOCOM_FE2500 },
106 	{ PCI_VENDOR_ABOCOM, PCI_PRODUCT_ABOCOM_FE2500MX },
107 	{ PCI_VENDOR_ABOCOM, PCI_PRODUCT_ABOCOM_PCM200 },
108 	{ PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DRP32TXD },
109 	{ PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_PCMPC200 },
110 	{ PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_PCM200 },
111 	{ PCI_VENDOR_HAWKING, PCI_PRODUCT_HAWKING_PN672TX },
112 	{ PCI_VENDOR_MICROSOFT, PCI_PRODUCT_MICROSOFT_MN120 },
113 	{ 0, 0 }
114 };
115 
116 int dc_pci_match(struct device *, void *, void *);
117 void dc_pci_attach(struct device *, struct device *, void *);
118 int dc_pci_detach(struct device *, int);
119 
120 struct dc_pci_softc {
121 	struct dc_softc		psc_softc;
122 	pci_chipset_tag_t	psc_pc;
123 	bus_size_t		psc_mapsize;
124 };
125 
126 /*
127  * Probe for a 21143 or clone chip. Check the PCI vendor and device
128  * IDs against our list and return a device name if we find a match.
129  */
130 int
131 dc_pci_match(struct device *parent, void *match, void *aux)
132 {
133 	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
134 	struct dc_type *t;
135 
136 	/*
137 	 * Support for the 21140 chip is experimental.  If it works for you,
138 	 * that's great.  By default, this chip will use de.
139 	 */
140         if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DEC &&
141 	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21140)
142 		return (1);
143 
144 	/*
145 	 * The following chip revision doesn't seem to work so well with dc,
146 	 * so let's have de handle it.  (de will return a match of 2)
147 	 */
148         if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DEC &&
149 	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21142 &&
150 	    PCI_REVISION(pa->pa_class) == 0x21)
151 		return (1);
152 
153 	for (t = dc_devs; t->dc_vid != 0; t++) {
154 		if ((PCI_VENDOR(pa->pa_id) == t->dc_vid) &&
155 		    (PCI_PRODUCT(pa->pa_id) == t->dc_did)) {
156 			return (3);
157 		}
158 	}
159 
160 	return (0);
161 }
162 
163 /*
164  * Attach the interface. Allocate softc structures, do ifmedia
165  * setup and ethernet/BPF attach.
166  */
167 void
168 dc_pci_attach(struct device *parent, struct device *self, void *aux)
169 {
170 	const char		*intrstr = NULL;
171 	pcireg_t		command;
172 	struct dc_pci_softc	*psc = (struct dc_pci_softc *)self;
173 	struct dc_softc		*sc = &psc->psc_softc;
174 	struct pci_attach_args	*pa = aux;
175 	pci_chipset_tag_t	pc = pa->pa_pc;
176 	pci_intr_handle_t	ih;
177 	int			found = 0;
178 
179 	psc->psc_pc = pa->pa_pc;
180 	sc->sc_dmat = pa->pa_dmat;
181 
182 	pci_set_powerstate(pa->pa_pc, pa->pa_tag, PCI_PMCSR_STATE_D0);
183 
184 	sc->dc_csid = pci_conf_read(pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
185 
186 	/*
187 	 * Map control/status registers.
188 	 */
189 #ifdef DC_USEIOSPACE
190 	if (pci_mapreg_map(pa, DC_PCI_CFBIO,
191 	    PCI_MAPREG_TYPE_IO, 0,
192 	    &sc->dc_btag, &sc->dc_bhandle, NULL, &psc->psc_mapsize, 0)) {
193 		printf(": can't map i/o space\n");
194 		return;
195 	}
196 #else
197 	if (pci_mapreg_map(pa, DC_PCI_CFBMA,
198 	    PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
199 	    &sc->dc_btag, &sc->dc_bhandle, NULL, &psc->psc_mapsize, 0)) {
200 		printf(": can't map mem space\n");
201 		return;
202 	}
203 #endif
204 
205 	/* Allocate interrupt */
206 	if (pci_intr_map(pa, &ih)) {
207 		printf(": couldn't map interrupt\n");
208 		goto fail_1;
209 	}
210 	intrstr = pci_intr_string(pc, ih);
211 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, dc_intr, sc,
212 	    self->dv_xname);
213 	if (sc->sc_ih == NULL) {
214 		printf(": couldn't establish interrupt");
215 		if (intrstr != NULL)
216 			printf(" at %s", intrstr);
217 		printf("\n");
218 		goto fail_1;
219 	}
220 	printf(": %s", intrstr);
221 
222 	/* Need this info to decide on a chip type. */
223 	sc->dc_revision = PCI_REVISION(pa->pa_class);
224 
225 	/* Get the eeprom width, if possible */
226 	if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LITEON &&
227 	      PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LITEON_PNIC))
228 		;	/* PNIC has non-standard eeprom */
229 	else if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_XIRCOM &&
230 	      PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_XIRCOM_X3201_3_21143))
231 		;	/* XIRCOM has non-standard eeprom */
232 	else
233 		dc_eeprom_width(sc);
234 
235 	switch (PCI_VENDOR(pa->pa_id)) {
236 	case PCI_VENDOR_DEC:
237 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21140 ||
238 		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21142) {
239 			found = 1;
240 			sc->dc_type = DC_TYPE_21143;
241 			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
242 			sc->dc_flags |= DC_REDUCED_MII_POLL;
243 			dc_read_srom(sc, sc->dc_romwidth);
244 		}
245 		break;
246 	case PCI_VENDOR_INTEL:
247 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_21145) {
248 			found = 1;
249 			sc->dc_type = DC_TYPE_21145;
250 			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
251 			sc->dc_flags |= DC_REDUCED_MII_POLL;
252 			dc_read_srom(sc, sc->dc_romwidth);
253 		}
254 		break;
255 	case PCI_VENDOR_DAVICOM:
256 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9100 ||
257 		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9102 ||
258 		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9009) {
259 			found = 1;
260 			sc->dc_type = DC_TYPE_DM9102;
261 			sc->dc_flags |= DC_TX_COALESCE|DC_TX_INTR_ALWAYS;
262 			sc->dc_flags |= DC_REDUCED_MII_POLL|DC_TX_STORENFWD;
263 			sc->dc_flags |= DC_TX_ALIGN;
264 			sc->dc_pmode = DC_PMODE_MII;
265 
266 			/* Increase the latency timer value. */
267 			command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFLT);
268 			command &= 0xFFFF00FF;
269 			command |= 0x00008000;
270 			pci_conf_write(pc, pa->pa_tag, DC_PCI_CFLT, command);
271 		}
272 		break;
273 	case PCI_VENDOR_ADMTEK:
274 	case PCI_VENDOR_3COM:
275 	case PCI_VENDOR_MICROSOFT:
276 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_AL981) {
277 			found = 1;
278 			sc->dc_type = DC_TYPE_AL981;
279 			sc->dc_flags |= DC_TX_USE_TX_INTR;
280 			sc->dc_flags |= DC_TX_ADMTEK_WAR;
281 			sc->dc_pmode = DC_PMODE_MII;
282 			dc_read_srom(sc, sc->dc_romwidth);
283 		}
284 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_ADM9511 ||
285 		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_ADM9513 ||
286 		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_AN983 ||
287 		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_3COM_3CSHO100BTX ||
288 		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MICROSOFT_MN130) {
289 			found = 1;
290 			sc->dc_type = DC_TYPE_AN983;
291 			sc->dc_flags |= DC_TX_USE_TX_INTR;
292 			sc->dc_flags |= DC_TX_ADMTEK_WAR;
293 			sc->dc_flags |= DC_64BIT_HASH;
294 			sc->dc_pmode = DC_PMODE_MII;
295 			/* Don't read SROM for - auto-loaded on reset */
296 		}
297 		break;
298 	case PCI_VENDOR_MACRONIX:
299 	case PCI_VENDOR_ACCTON:
300 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ACCTON_EN2242) {
301 			found = 1;
302 			sc->dc_type = DC_TYPE_AN983;
303 			sc->dc_flags |= DC_TX_USE_TX_INTR;
304 			sc->dc_flags |= DC_TX_ADMTEK_WAR;
305 			sc->dc_flags |= DC_64BIT_HASH;
306 			sc->dc_pmode = DC_PMODE_MII;
307 			/* Don't read SROM for - auto-loaded on reset */
308 		}
309 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98713) {
310 			found = 1;
311 			if (sc->dc_revision < DC_REVISION_98713A)
312 				sc->dc_type = DC_TYPE_98713;
313 			if (sc->dc_revision >= DC_REVISION_98713A) {
314 				sc->dc_type = DC_TYPE_98713A;
315 				sc->dc_flags |= DC_21143_NWAY;
316 			}
317 			sc->dc_flags |= DC_REDUCED_MII_POLL;
318 			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
319 		}
320 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98715 ||
321 		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ACCTON_EN1217) {
322 			found = 1;
323 			if (sc->dc_revision >= DC_REVISION_98715AEC_C &&
324 			    sc->dc_revision < DC_REVISION_98725)
325 				sc->dc_flags |= DC_128BIT_HASH;
326 			sc->dc_type = DC_TYPE_987x5;
327 			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
328 			sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
329 		}
330 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98727) {
331 			found = 1;
332 			sc->dc_type = DC_TYPE_987x5;
333 			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
334 			sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
335 		}
336 		break;
337 	case PCI_VENDOR_COMPEX:
338 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_COMPEX_98713) {
339 			found = 1;
340 			if (sc->dc_revision < DC_REVISION_98713A) {
341 				sc->dc_type = DC_TYPE_98713;
342 				sc->dc_flags |= DC_REDUCED_MII_POLL;
343 			}
344 			if (sc->dc_revision >= DC_REVISION_98713A)
345 				sc->dc_type = DC_TYPE_98713A;
346 			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
347 		}
348 		break;
349 	case PCI_VENDOR_LITEON:
350 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LITEON_PNICII) {
351 			found = 1;
352 			sc->dc_type = DC_TYPE_PNICII;
353 			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
354 			sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
355 			sc->dc_flags |= DC_128BIT_HASH;
356 		}
357 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LITEON_PNIC) {
358 			found = 1;
359 			sc->dc_type = DC_TYPE_PNIC;
360 			sc->dc_flags |= DC_TX_STORENFWD|DC_TX_INTR_ALWAYS;
361 			sc->dc_flags |= DC_PNIC_RX_BUG_WAR;
362 			sc->dc_pnic_rx_buf = malloc(ETHER_MAX_DIX_LEN * 5,
363 			    M_DEVBUF, M_NOWAIT);
364 			if (sc->dc_pnic_rx_buf == NULL)
365 				panic("dc_pci_attach");
366 			if (sc->dc_revision < DC_REVISION_82C169)
367 				sc->dc_pmode = DC_PMODE_SYM;
368 		}
369 		break;
370 	case PCI_VENDOR_ASIX:
371 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ASIX_AX88140A) {
372 			found = 1;
373 			sc->dc_type = DC_TYPE_ASIX;
374 			sc->dc_flags |= DC_TX_USE_TX_INTR|DC_TX_INTR_FIRSTFRAG;
375 			sc->dc_flags |= DC_REDUCED_MII_POLL;
376 			sc->dc_pmode = DC_PMODE_MII;
377 		}
378 		break;
379 	case PCI_VENDOR_CONEXANT:
380 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CONEXANT_RS7112) {
381 			found = 1;
382 			sc->dc_type = DC_TYPE_CONEXANT;
383 			sc->dc_flags |= DC_TX_INTR_ALWAYS;
384 			sc->dc_flags |= DC_REDUCED_MII_POLL;
385 			sc->dc_pmode = DC_PMODE_MII;
386 			dc_read_srom(sc, sc->dc_romwidth);
387 		}
388 		break;
389 	case PCI_VENDOR_XIRCOM:
390 		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_XIRCOM_X3201_3_21143) {
391 			found = 1;
392 			sc->dc_type = DC_TYPE_XIRCOM;
393 			sc->dc_flags |= DC_TX_INTR_ALWAYS;
394 			sc->dc_flags |= DC_TX_COALESCE;
395 			sc->dc_flags |= DC_TX_ALIGN;
396 			sc->dc_pmode = DC_PMODE_MII;
397 		}
398 		break;
399 	}
400 	if (found == 0) {
401 		/* This shouldn't happen if probe has done its job... */
402 		printf(": unknown device: %x:%x\n",
403 		    PCI_VENDOR(pa->pa_id), PCI_PRODUCT(pa->pa_id));
404 		goto fail_2;
405 	}
406 
407 	/* Save the cache line size. */
408 	if (DC_IS_DAVICOM(sc))
409 		sc->dc_cachesize = 0;
410 	else
411 		sc->dc_cachesize = pci_conf_read(pc, pa->pa_tag,
412 		    DC_PCI_CFLT) & 0xFF;
413 
414 	/* Reset the adapter. */
415 	dc_reset(sc);
416 
417 	/* Take 21143 out of snooze mode */
418 	if (DC_IS_INTEL(sc) || DC_IS_XIRCOM(sc)) {
419 		command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFDD);
420 		command &= ~(DC_CFDD_SNOOZE_MODE|DC_CFDD_SLEEP_MODE);
421 		pci_conf_write(pc, pa->pa_tag, DC_PCI_CFDD, command);
422 	}
423 
424 	/*
425 	 * If we discover later (in dc_attach) that we have an
426 	 * MII with no PHY, we need to have the 21143 drive the LEDs.
427 	 * Except there are some systems like the NEC VersaPro NoteBook PC
428 	 * which have no LEDs, and twiddling these bits has adverse effects
429 	 * on them. (I.e. you suddenly can't get a link.)
430 	 *
431 	 * If mii_attach() returns an error, we leave the DC_TULIP_LEDS
432 	 * bit set, else we clear it. Since our dc(4) driver is split into
433 	 * bus-dependent and bus-independent parts, we must do set this bit
434 	 * here while we are able to do PCI configuration reads.
435 	 */
436 	if (DC_IS_INTEL(sc)) {
437 		if (pci_conf_read(pc, pa->pa_tag, DC_PCI_CSID) != 0x80281033)
438 			sc->dc_flags |= DC_TULIP_LEDS;
439 	}
440 
441 	/*
442 	 * Try to learn something about the supported media.
443 	 * We know that ASIX and ADMtek and Davicom devices
444 	 * will *always* be using MII media, so that's a no-brainer.
445 	 * The tricky ones are the Macronix/PNIC II and the
446 	 * Intel 21143.
447 	 */
448 	if (DC_IS_INTEL(sc))
449 		dc_parse_21143_srom(sc);
450 	else if (DC_IS_MACRONIX(sc) || DC_IS_PNICII(sc)) {
451 		if (sc->dc_type == DC_TYPE_98713)
452 			sc->dc_pmode = DC_PMODE_MII;
453 		else
454 			sc->dc_pmode = DC_PMODE_SYM;
455 	} else if (!sc->dc_pmode)
456 		sc->dc_pmode = DC_PMODE_MII;
457 
458 #ifdef __sparc64__
459 	{
460 		extern void myetheraddr(u_char *);
461 
462 		if (OF_getprop(PCITAG_NODE(pa->pa_tag), "local-mac-address",
463 		    sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN) <= 0)
464 			myetheraddr(sc->sc_arpcom.ac_enaddr);
465 		if (sc->sc_arpcom.ac_enaddr[0] == 0x00 &&
466 		    sc->sc_arpcom.ac_enaddr[1] == 0x03 &&
467 		    sc->sc_arpcom.ac_enaddr[2] == 0xcc)
468 			sc->dc_flags |= DC_MOMENCO_BOTCH;
469 		sc->sc_hasmac = 1;
470 	}
471 #endif
472 
473 #ifdef SRM_MEDIA
474 	sc->dc_srm_media = 0;
475 
476 	/* Remember the SRM console media setting */
477 	if (DC_IS_INTEL(sc)) {
478 		command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFDD);
479 		command &= ~(DC_CFDD_SNOOZE_MODE|DC_CFDD_SLEEP_MODE);
480 		switch ((command >> 8) & 0xff) {
481 		case 3:
482 			sc->dc_srm_media = IFM_10_T;
483 			break;
484 		case 4:
485 			sc->dc_srm_media = IFM_10_T | IFM_FDX;
486 			break;
487 		case 5:
488 			sc->dc_srm_media = IFM_100_TX;
489 			break;
490 		case 6:
491 			sc->dc_srm_media = IFM_100_TX | IFM_FDX;
492 			break;
493 		}
494 		if (sc->dc_srm_media)
495 			sc->dc_srm_media |= IFM_ACTIVE | IFM_ETHER;
496 	}
497 #endif
498 	dc_attach(sc);
499 
500 	return;
501 
502 fail_2:
503 	pci_intr_disestablish(pc, sc->sc_ih);
504 
505 fail_1:
506 	bus_space_unmap(sc->dc_btag, sc->dc_bhandle, psc->psc_mapsize);
507 }
508 
509 int
510 dc_pci_detach(struct device *self, int flags)
511 {
512 	struct dc_pci_softc *psc = (void *)self;
513 	struct dc_softc *sc = &psc->psc_softc;
514 
515 	if (sc->sc_ih != NULL)
516 		pci_intr_disestablish(psc->psc_pc, sc->sc_ih);
517 	dc_detach(sc);
518 	bus_space_unmap(sc->dc_btag, sc->dc_bhandle, psc->psc_mapsize);
519 
520 	return (0);
521 }
522 
523 const struct cfattach dc_pci_ca = {
524 	sizeof(struct dc_softc), dc_pci_match, dc_pci_attach, dc_pci_detach,
525 	dc_activate
526 };
527