if_dc_pci.c revision 1.53
1/*	$OpenBSD: if_dc_pci.c,v 1.53 2006/06/17 18:00:43 brad 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/protosw.h>
43#include <sys/socket.h>
44#include <sys/ioctl.h>
45#include <sys/errno.h>
46#include <sys/timeout.h>
47#include <sys/malloc.h>
48#include <sys/kernel.h>
49#include <sys/device.h>
50
51#include <net/if.h>
52#include <net/if_dl.h>
53#include <net/if_types.h>
54
55#ifdef INET
56#include <netinet/in.h>
57#include <netinet/in_systm.h>
58#include <netinet/in_var.h>
59#include <netinet/ip.h>
60#include <netinet/if_ether.h>
61#endif
62
63#include <net/if_media.h>
64
65#if NBPFILTER > 0
66#include <net/bpf.h>
67#endif
68
69#include <dev/mii/mii.h>
70#include <dev/mii/miivar.h>
71
72#include <dev/pci/pcireg.h>
73#include <dev/pci/pcivar.h>
74#include <dev/pci/pcidevs.h>
75
76#ifdef __sparc64__
77#include <dev/ofw/openfirm.h>
78#endif
79
80#ifndef __hppa__
81#define DC_USEIOSPACE
82#endif
83
84#include <dev/ic/dcreg.h>
85
86/*
87 * Various supported device vendors/types and their names.
88 */
89struct dc_type dc_devs[] = {
90	{ PCI_VENDOR_DEC, PCI_PRODUCT_DEC_21140 },
91	{ PCI_VENDOR_DEC, PCI_PRODUCT_DEC_21142 },
92	{ PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9009 },
93	{ PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9100 },
94	{ PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9102 },
95	{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_AL981 },
96	{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_AN983 },
97	{ PCI_VENDOR_ASIX, PCI_PRODUCT_ASIX_AX88140A },
98	{ PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98713 },
99	{ PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98715 },
100	{ PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98727 },
101	{ PCI_VENDOR_COMPEX, PCI_PRODUCT_COMPEX_98713 },
102	{ PCI_VENDOR_LITEON, PCI_PRODUCT_LITEON_PNIC },
103	{ PCI_VENDOR_LITEON, PCI_PRODUCT_LITEON_PNICII },
104	{ PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_EN1217 },
105	{ PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_EN2242 },
106	{ PCI_VENDOR_CONEXANT, PCI_PRODUCT_CONEXANT_RS7112 },
107	{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_21145 },
108	{ PCI_VENDOR_3COM, PCI_PRODUCT_3COM_3CSHO100BTX },
109	{ PCI_VENDOR_MICROSOFT, PCI_PRODUCT_MICROSOFT_MN130 },
110	{ 0, 0 }
111};
112
113int dc_pci_match(struct device *, void *, void *);
114void dc_pci_attach(struct device *, struct device *, void *);
115void dc_pci_acpi(struct device *, void *);
116
117/*
118 * Probe for a 21143 or clone chip. Check the PCI vendor and device
119 * IDs against our list and return a device name if we find a match.
120 */
121int
122dc_pci_match(parent, match, aux)
123	struct device *parent;
124	void *match, *aux;
125{
126	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
127	struct dc_type *t;
128
129	/*
130	 * Support for the 21140 chip is experimental.  If it works for you,
131	 * that's great.  By default, this chip will use de.
132	 */
133        if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DEC &&
134	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21140)
135		return (1);
136
137	/*
138	 * The following chip revision doesn't seem to work so well with dc,
139	 * so let's have de handle it.  (de will return a match of 2)
140	 */
141        if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DEC &&
142	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21142 &&
143	    PCI_REVISION(pa->pa_class) == 0x21)
144		return (1);
145
146	/*
147	 * Since dc doesn't fit on the alpha floppy, we want de to win by
148	 * default on alpha so that RAMDISK* and GENERIC will use the same
149	 * driver.
150	 */
151	for (t = dc_devs; t->dc_vid != 0; t++) {
152		if ((PCI_VENDOR(pa->pa_id) == t->dc_vid) &&
153		    (PCI_PRODUCT(pa->pa_id) == t->dc_did)) {
154#ifdef __alpha__
155			return (1);
156#else
157			return (3);
158#endif
159		}
160	}
161
162	return (0);
163}
164
165void dc_pci_acpi(self, aux)
166	struct device *self;
167	void *aux;
168{
169	struct dc_softc		*sc = (struct dc_softc *)self;
170	struct pci_attach_args	*pa = (struct pci_attach_args *)aux;
171	pci_chipset_tag_t	pc = pa->pa_pc;
172	u_int32_t		r, cptr;
173
174	/* Find the location of the capabilities block */
175	cptr = pci_conf_read(pc, pa->pa_tag, DC_PCI_CCAP) & 0xFF;
176
177	r = pci_conf_read(pc, pa->pa_tag, cptr) & 0xFF;
178	if (r == 0x01) {
179
180		r = pci_conf_read(pc, pa->pa_tag, cptr + PCI_PMCSR);
181		if (r & DC_PSTATE_D3) {
182			u_int32_t		iobase, membase, irq;
183
184			/* Save important PCI config data. */
185			iobase = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFBIO);
186			membase = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFBMA);
187			irq = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFIT);
188
189			/* Reset the power state. */
190			printf("%s: chip is in D%d power mode "
191			    "-- setting to D0\n", sc->sc_dev.dv_xname,
192			    r & DC_PSTATE_D3);
193			r &= 0xFFFFFFFC;
194			pci_conf_write(pc, pa->pa_tag, cptr + PCI_PMCSR, r);
195
196			/* Restore PCI config data. */
197			pci_conf_write(pc, pa->pa_tag, DC_PCI_CFBIO, iobase);
198			pci_conf_write(pc, pa->pa_tag, DC_PCI_CFBMA, membase);
199			pci_conf_write(pc, pa->pa_tag, DC_PCI_CFIT, irq);
200		}
201	}
202	return;
203}
204
205/*
206 * Attach the interface. Allocate softc structures, do ifmedia
207 * setup and ethernet/BPF attach.
208 */
209void dc_pci_attach(parent, self, aux)
210	struct device *parent, *self;
211	void *aux;
212{
213	const char		*intrstr = NULL;
214	pcireg_t		command;
215	struct dc_softc		*sc = (struct dc_softc *)self;
216	struct pci_attach_args	*pa = aux;
217	pci_chipset_tag_t	pc = pa->pa_pc;
218	pci_intr_handle_t	ih;
219	bus_size_t		size;
220	u_int32_t		revision;
221	int			found = 0;
222
223	sc->sc_dmat = pa->pa_dmat;
224
225	/*
226	 * Handle power management nonsense.
227	 */
228	dc_pci_acpi(self, aux);
229
230	sc->dc_csid = pci_conf_read(pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
231
232	/*
233	 * Map control/status registers.
234	 */
235#ifdef DC_USEIOSPACE
236	if (pci_mapreg_map(pa, DC_PCI_CFBIO,
237	    PCI_MAPREG_TYPE_IO, 0,
238	    &sc->dc_btag, &sc->dc_bhandle, NULL, &size, 0)) {
239		printf(": can't map i/o space\n");
240		return;
241	}
242#else
243	if (pci_mapreg_map(pa, DC_PCI_CFBMA,
244	    PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
245	    &sc->dc_btag, &sc->dc_bhandle, NULL, &size, 0)) {
246		printf(": can't map mem space\n");
247		return;
248	}
249#endif
250
251	/* Allocate interrupt */
252	if (pci_intr_map(pa, &ih)) {
253		printf(": couldn't map interrupt\n");
254		goto fail_1;
255	}
256	intrstr = pci_intr_string(pc, ih);
257	sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, dc_intr, sc,
258	    self->dv_xname);
259	if (sc->sc_ih == NULL) {
260		printf(": couldn't establish interrupt");
261		if (intrstr != NULL)
262			printf(" at %s", intrstr);
263		printf("\n");
264		goto fail_1;
265	}
266	printf(": %s,", intrstr);
267
268	/* Need this info to decide on a chip type. */
269	sc->dc_revision = revision = PCI_REVISION(pa->pa_class);
270
271	/* Get the eeprom width, but PNIC has no eeprom */
272	if (!(PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LITEON &&
273	      PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LITEON_PNIC))
274		dc_eeprom_width(sc);
275
276	switch (PCI_VENDOR(pa->pa_id)) {
277	case PCI_VENDOR_DEC:
278		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21140 ||
279		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21142) {
280			found = 1;
281			sc->dc_type = DC_TYPE_21143;
282			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
283			sc->dc_flags |= DC_REDUCED_MII_POLL;
284			dc_read_srom(sc, sc->dc_romwidth);
285		}
286		break;
287	case PCI_VENDOR_INTEL:
288		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_21145) {
289			found = 1;
290			sc->dc_type = DC_TYPE_21145;
291			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
292			sc->dc_flags |= DC_REDUCED_MII_POLL;
293			dc_read_srom(sc, sc->dc_romwidth);
294		}
295	case PCI_VENDOR_DAVICOM:
296		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9100 ||
297		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9102 ||
298		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9009) {
299			found = 1;
300			sc->dc_type = DC_TYPE_DM9102;
301			sc->dc_flags |= DC_TX_COALESCE|DC_TX_INTR_ALWAYS;
302			sc->dc_flags |= DC_REDUCED_MII_POLL|DC_TX_STORENFWD;
303			sc->dc_flags |= DC_TX_ALIGN;
304			sc->dc_pmode = DC_PMODE_MII;
305
306			/* Increase the latency timer value. */
307			command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFLT);
308			command &= 0xFFFF00FF;
309			command |= 0x00008000;
310			pci_conf_write(pc, pa->pa_tag, DC_PCI_CFLT, command);
311		}
312		break;
313	case PCI_VENDOR_ADMTEK:
314	case PCI_VENDOR_3COM:
315	case PCI_VENDOR_MICROSOFT:
316		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_AL981) {
317			found = 1;
318			sc->dc_type = DC_TYPE_AL981;
319			sc->dc_flags |= DC_TX_USE_TX_INTR;
320			sc->dc_flags |= DC_TX_ADMTEK_WAR;
321			sc->dc_pmode = DC_PMODE_MII;
322			dc_read_srom(sc, sc->dc_romwidth);
323		}
324		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_AN983 ||
325		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_3COM_3CSHO100BTX ||
326		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MICROSOFT_MN130) {
327			found = 1;
328			sc->dc_type = DC_TYPE_AN983;
329			sc->dc_flags |= DC_TX_USE_TX_INTR;
330			sc->dc_flags |= DC_TX_ADMTEK_WAR;
331			sc->dc_flags |= DC_64BIT_HASH;
332			sc->dc_pmode = DC_PMODE_MII;
333			/* Don't read SROM for - auto-loaded on reset */
334		}
335		break;
336	case PCI_VENDOR_MACRONIX:
337	case PCI_VENDOR_ACCTON:
338		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ACCTON_EN2242) {
339			found = 1;
340			sc->dc_type = DC_TYPE_AN983;
341			sc->dc_flags |= DC_TX_USE_TX_INTR;
342			sc->dc_flags |= DC_TX_ADMTEK_WAR;
343			sc->dc_flags |= DC_64BIT_HASH;
344			sc->dc_pmode = DC_PMODE_MII;
345			/* Don't read SROM for - auto-loaded on reset */
346		}
347		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98713) {
348			found = 1;
349			if (revision < DC_REVISION_98713A) {
350				sc->dc_type = DC_TYPE_98713;
351			}
352			if (revision >= DC_REVISION_98713A) {
353				sc->dc_type = DC_TYPE_98713A;
354				sc->dc_flags |= DC_21143_NWAY;
355			}
356			sc->dc_flags |= DC_REDUCED_MII_POLL;
357			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
358		}
359		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98715 ||
360		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ACCTON_EN1217) {
361			found = 1;
362			if (revision >= DC_REVISION_98715AEC_C &&
363			    revision < DC_REVISION_98725)
364				sc->dc_flags |= DC_128BIT_HASH;
365			sc->dc_type = DC_TYPE_987x5;
366			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
367			sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
368		}
369		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98727) {
370			found = 1;
371			sc->dc_type = DC_TYPE_987x5;
372			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
373			sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
374		}
375		break;
376	case PCI_VENDOR_COMPEX:
377		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_COMPEX_98713) {
378			found = 1;
379			if (revision < DC_REVISION_98713A) {
380				sc->dc_type = DC_TYPE_98713;
381				sc->dc_flags |= DC_REDUCED_MII_POLL;
382			}
383			if (revision >= DC_REVISION_98713A)
384				sc->dc_type = DC_TYPE_98713A;
385			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
386		}
387		break;
388	case PCI_VENDOR_LITEON:
389		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LITEON_PNICII) {
390			found = 1;
391			sc->dc_type = DC_TYPE_PNICII;
392			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
393			sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
394			sc->dc_flags |= DC_128BIT_HASH;
395		}
396		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LITEON_PNIC) {
397			found = 1;
398			sc->dc_type = DC_TYPE_PNIC;
399			sc->dc_flags |= DC_TX_STORENFWD|DC_TX_INTR_ALWAYS;
400			sc->dc_flags |= DC_PNIC_RX_BUG_WAR;
401			sc->dc_pnic_rx_buf = malloc(ETHER_MAX_DIX_LEN * 5, M_DEVBUF,
402			    M_NOWAIT);
403			if (sc->dc_pnic_rx_buf == NULL)
404				panic("dc_pci_attach");
405			if (revision < DC_REVISION_82C169)
406				sc->dc_pmode = DC_PMODE_SYM;
407		}
408		break;
409	case PCI_VENDOR_ASIX:
410		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ASIX_AX88140A) {
411			found = 1;
412			sc->dc_type = DC_TYPE_ASIX;
413			sc->dc_flags |= DC_TX_USE_TX_INTR|DC_TX_INTR_FIRSTFRAG;
414			sc->dc_flags |= DC_REDUCED_MII_POLL;
415			sc->dc_pmode = DC_PMODE_MII;
416		}
417		break;
418	case PCI_VENDOR_CONEXANT:
419		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CONEXANT_RS7112) {
420			found = 1;
421			sc->dc_type = DC_TYPE_CONEXANT;
422			sc->dc_flags |= DC_TX_INTR_ALWAYS;
423			sc->dc_flags |= DC_REDUCED_MII_POLL;
424			sc->dc_pmode = DC_PMODE_MII;
425			dc_read_srom(sc, sc->dc_romwidth);
426		}
427		break;
428	}
429	if (found == 0) {
430		/* This shouldn't happen if probe has done it's job... */
431		printf(": unknown device: %x:%x\n",
432		    PCI_VENDOR(pa->pa_id), PCI_PRODUCT(pa->pa_id));
433		goto fail_2;
434	}
435
436	/* Save the cache line size. */
437	if (DC_IS_DAVICOM(sc))
438		sc->dc_cachesize = 0;
439	else
440		sc->dc_cachesize = pci_conf_read(pc, pa->pa_tag,
441		    DC_PCI_CFLT) & 0xFF;
442
443	/* Reset the adapter. */
444	dc_reset(sc);
445
446	/* Take 21143 out of snooze mode */
447	if (DC_IS_INTEL(sc)) {
448		command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFDD);
449		command &= ~(DC_CFDD_SNOOZE_MODE|DC_CFDD_SLEEP_MODE);
450		pci_conf_write(pc, pa->pa_tag, DC_PCI_CFDD, command);
451	}
452
453	/*
454	 * If we discover later (in dc_attach) that we have an
455	 * MII with no PHY, we need to have the 21143 drive the LEDs.
456	 * Except there are some systems like the NEC VersaPro NoteBook PC
457	 * which have no LEDs, and twiddling these bits has adverse effects
458	 * on them. (I.e. you suddenly can't get a link.)
459	 *
460	 * If mii_attach() returns an error, we leave the DC_TULIP_LEDS
461	 * bit set, else we clear it. Since our dc(4) driver is split into
462	 * bus-dependent and bus-independent parts, we must do set this bit
463	 * here while we are able to do PCI configuration reads.
464	 */
465	if (DC_IS_INTEL(sc)) {
466		if (pci_conf_read(pc, pa->pa_tag, DC_PCI_CSID) != 0x80281033)
467			sc->dc_flags |= DC_TULIP_LEDS;
468	}
469
470	/*
471	 * Try to learn something about the supported media.
472	 * We know that ASIX and ADMtek and Davicom devices
473	 * will *always* be using MII media, so that's a no-brainer.
474	 * The tricky ones are the Macronix/PNIC II and the
475	 * Intel 21143.
476	 */
477	if (DC_IS_INTEL(sc))
478		dc_parse_21143_srom(sc);
479	else if (DC_IS_MACRONIX(sc) || DC_IS_PNICII(sc)) {
480		if (sc->dc_type == DC_TYPE_98713)
481			sc->dc_pmode = DC_PMODE_MII;
482		else
483			sc->dc_pmode = DC_PMODE_SYM;
484	} else if (!sc->dc_pmode)
485		sc->dc_pmode = DC_PMODE_MII;
486
487#ifdef __sparc64__
488	{
489		extern void myetheraddr(u_char *);
490
491		if (OF_getprop(PCITAG_NODE(pa->pa_tag), "local-mac-address",
492		    sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN) <= 0)
493			myetheraddr(sc->sc_arpcom.ac_enaddr);
494		if (sc->sc_arpcom.ac_enaddr[0] == 0x00 &&
495		    sc->sc_arpcom.ac_enaddr[1] == 0x03 &&
496		    sc->sc_arpcom.ac_enaddr[2] == 0xcc)
497			sc->dc_flags |= DC_MOMENCO_BOTCH;
498		sc->sc_hasmac = 1;
499	}
500#endif
501
502#ifdef SRM_MEDIA
503	sc->dc_srm_media = 0;
504
505	/* Remember the SRM console media setting */
506	if (DC_IS_INTEL(sc)) {
507		command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFDD);
508		command &= ~(DC_CFDD_SNOOZE_MODE|DC_CFDD_SLEEP_MODE);
509		switch ((command >> 8) & 0xff) {
510		case 3:
511			sc->dc_srm_media = IFM_10_T;
512			break;
513		case 4:
514			sc->dc_srm_media = IFM_10_T | IFM_FDX;
515			break;
516		case 5:
517			sc->dc_srm_media = IFM_100_TX;
518			break;
519		case 6:
520			sc->dc_srm_media = IFM_100_TX | IFM_FDX;
521			break;
522		}
523		if (sc->dc_srm_media)
524			sc->dc_srm_media |= IFM_ACTIVE | IFM_ETHER;
525	}
526#endif
527	dc_attach(sc);
528
529	return;
530
531fail_2:
532	pci_intr_disestablish(pc, sc->sc_ih);
533
534fail_1:
535	bus_space_unmap(sc->dc_btag, sc->dc_bhandle, size);
536}
537
538struct cfattach dc_pci_ca = {
539	sizeof(struct dc_softc), dc_pci_match, dc_pci_attach
540};
541