if_dc_pci.c revision 1.38
1/*	$OpenBSD: if_dc_pci.c,v 1.38 2003/06/26 00:46:14 mickey 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/malloc.h>
47#include <sys/kernel.h>
48#include <sys/device.h>
49
50#include <net/if.h>
51#include <net/if_dl.h>
52#include <net/if_types.h>
53
54#ifdef INET
55#include <netinet/in.h>
56#include <netinet/in_systm.h>
57#include <netinet/in_var.h>
58#include <netinet/ip.h>
59#include <netinet/if_ether.h>
60#endif
61
62#include <net/if_media.h>
63
64#if NBPFILTER > 0
65#include <net/bpf.h>
66#endif
67
68#include <dev/mii/mii.h>
69#include <dev/mii/miivar.h>
70
71#include <dev/pci/pcireg.h>
72#include <dev/pci/pcivar.h>
73#include <dev/pci/pcidevs.h>
74
75#ifdef __sparc64__
76#include <dev/ofw/openfirm.h>
77#endif
78
79#define DC_USEIOSPACE
80
81#include <dev/ic/dcreg.h>
82
83/*
84 * Various supported device vendors/types and their names.
85 */
86struct dc_type dc_devs[] = {
87	{ PCI_VENDOR_DEC, PCI_PRODUCT_DEC_21140 },
88	{ PCI_VENDOR_DEC, PCI_PRODUCT_DEC_21142 },
89	{ PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9009 },
90	{ PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9100 },
91	{ PCI_VENDOR_DAVICOM, PCI_PRODUCT_DAVICOM_DM9102 },
92	{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_AL981 },
93	{ PCI_VENDOR_ADMTEK, PCI_PRODUCT_ADMTEK_AN983 },
94	{ PCI_VENDOR_ASIX, PCI_PRODUCT_ASIX_AX88140A },
95	{ PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98713 },
96	{ PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98715 },
97	{ PCI_VENDOR_MACRONIX, PCI_PRODUCT_MACRONIX_MX98727 },
98	{ PCI_VENDOR_COMPEX, PCI_PRODUCT_COMPEX_98713 },
99	{ PCI_VENDOR_LITEON, PCI_PRODUCT_LITEON_PNIC },
100	{ PCI_VENDOR_LITEON, PCI_PRODUCT_LITEON_PNICII },
101	{ PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_EN1217 },
102	{ PCI_VENDOR_ACCTON, PCI_PRODUCT_ACCTON_EN2242 },
103	{ PCI_VENDOR_CONEXANT, PCI_PRODUCT_CONEXANT_RS7112 },
104	{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_21145 },
105	{ 0, 0 }
106};
107
108int dc_pci_match(struct device *, void *, void *);
109void dc_pci_attach(struct device *, struct device *, void *);
110void dc_pci_acpi(struct device *, void *);
111
112/*
113 * Probe for a 21143 or clone chip. Check the PCI vendor and device
114 * IDs against our list and return a device name if we find a match.
115 */
116int
117dc_pci_match(parent, match, aux)
118	struct device *parent;
119	void *match, *aux;
120{
121	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
122	struct dc_type *t;
123
124	/*
125	 * Support for the 21140 chip is experimental.  If it works for you,
126	 * that's great.  By default, this chip will use de.
127	 */
128        if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DEC &&
129	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21140)
130		return (1);
131
132	/*
133	 * The following chip revision doesn't seem to work so well with dc,
134	 * so let's have de handle it.  (de will return a match of 2)
135	 */
136        if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_DEC &&
137	    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21142 &&
138	    PCI_REVISION(pa->pa_class) == 0x21)
139		return (1);
140
141	/*
142	 * Since dc doesn't fit on the alpha floppy, we want de to win by
143	 * default on alpha so that RAMDISK* and GENERIC will use the same
144	 * driver.
145	 */
146	for (t = dc_devs; t->dc_vid != 0; t++) {
147		if ((PCI_VENDOR(pa->pa_id) == t->dc_vid) &&
148		    (PCI_PRODUCT(pa->pa_id) == t->dc_did)) {
149#ifdef __alpha__
150			return (1);
151#else
152			return (3);
153#endif
154		}
155	}
156
157	return (0);
158}
159
160void dc_pci_acpi(self, aux)
161	struct device *self;
162	void *aux;
163{
164	struct dc_softc		*sc = (struct dc_softc *)self;
165	struct pci_attach_args	*pa = (struct pci_attach_args *)aux;
166	pci_chipset_tag_t	pc = pa->pa_pc;
167	u_int32_t		r, cptr;
168
169	/* Find the location of the capabilities block */
170	cptr = pci_conf_read(pc, pa->pa_tag, DC_PCI_CCAP) & 0xFF;
171
172	r = pci_conf_read(pc, pa->pa_tag, cptr) & 0xFF;
173	if (r == 0x01) {
174
175		r = pci_conf_read(pc, pa->pa_tag, cptr + 4);
176		if (r & DC_PSTATE_D3) {
177			u_int32_t		iobase, membase, irq;
178
179			/* Save important PCI config data. */
180			iobase = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFBIO);
181			membase = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFBMA);
182			irq = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFIT);
183
184			/* Reset the power state. */
185			printf("%s: chip is in D%d power mode "
186			    "-- setting to D0\n", sc->sc_dev.dv_xname,
187			    r & DC_PSTATE_D3);
188			r &= 0xFFFFFFFC;
189			pci_conf_write(pc, pa->pa_tag, cptr + 4, r);
190
191			/* Restore PCI config data. */
192			pci_conf_write(pc, pa->pa_tag, DC_PCI_CFBIO, iobase);
193			pci_conf_write(pc, pa->pa_tag, DC_PCI_CFBMA, membase);
194			pci_conf_write(pc, pa->pa_tag, DC_PCI_CFIT, irq);
195		}
196	}
197	return;
198}
199
200/*
201 * Attach the interface. Allocate softc structures, do ifmedia
202 * setup and ethernet/BPF attach.
203 */
204void dc_pci_attach(parent, self, aux)
205	struct device *parent, *self;
206	void *aux;
207{
208	int			s;
209	const char		*intrstr = NULL;
210	u_int32_t		command;
211	struct dc_softc		*sc = (struct dc_softc *)self;
212	struct pci_attach_args	*pa = aux;
213	pci_chipset_tag_t	pc = pa->pa_pc;
214	pci_intr_handle_t	ih;
215	bus_addr_t		iobase;
216	bus_size_t		iosize;
217	u_int32_t		revision;
218	int			found = 0;
219
220	s = splimp();
221	sc->sc_dmat = pa->pa_dmat;
222
223	/*
224	 * Handle power management nonsense.
225	 */
226	dc_pci_acpi(self, aux);
227
228	/*
229	 * Map control/status registers.
230	 */
231	command = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
232	command |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE |
233	    PCI_COMMAND_MASTER_ENABLE;
234	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
235	command = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
236
237	sc->dc_csid = pci_conf_read(pc, pa->pa_tag, PCI_SUBSYS_ID_REG);
238
239#ifdef DC_USEIOSPACE
240	if (!(command & PCI_COMMAND_IO_ENABLE)) {
241		printf(": failed to enable I/O ports\n");
242		goto fail;
243	}
244	if (pci_io_find(pc, pa->pa_tag, DC_PCI_CFBIO, &iobase, &iosize)) {
245		printf(": can't find I/O space\n");
246		goto fail;
247	}
248	if (bus_space_map(pa->pa_iot, iobase, iosize, 0, &sc->dc_bhandle)) {
249		printf(": can't map I/O space\n");
250		goto fail;
251	}
252	sc->dc_btag = pa->pa_iot;
253#else
254	if (!(command & PCI_COMMAND_MEM_ENABLE)) {
255		printf(": failed to enable memory mapping\n");
256		goto fail;
257	}
258	if (pci_mem_find(pc, pa->pa_tag, DC_PCI_CFBMA, &iobase, &iosize, NULL)){
259		printf(": can't find mem space\n");
260		goto fail;
261	}
262	if (bus_space_map(pa->pa_memt, iobase, iosize, 0, &sc->dc_bhandle)) {
263		printf(": can't map mem space\n");
264		goto fail;
265	}
266	sc->dc_btag = pa->pa_memt;
267#endif
268
269	/* Allocate interrupt */
270	if (pci_intr_map(pa, &ih)) {
271		printf(": couldn't map interrupt\n");
272		goto fail;
273	}
274	intrstr = pci_intr_string(pc, ih);
275	sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, dc_intr, sc,
276	    self->dv_xname);
277	if (sc->sc_ih == NULL) {
278		printf(": couldn't establish interrupt");
279		if (intrstr != NULL)
280			printf(" at %s", intrstr);
281		printf("\n");
282		goto fail;
283	}
284	printf(": %s,", intrstr);
285
286	/* Need this info to decide on a chip type. */
287	sc->dc_revision = revision = PCI_REVISION(pa->pa_class);
288
289	switch (PCI_VENDOR(pa->pa_id)) {
290	case PCI_VENDOR_DEC:
291		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21140 ||
292		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DEC_21142) {
293			found = 1;
294			sc->dc_type = DC_TYPE_21143;
295			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
296			sc->dc_flags |= DC_REDUCED_MII_POLL;
297			dc_eeprom_width(sc);
298			dc_read_srom(sc, sc->dc_romwidth);
299		}
300		break;
301	case PCI_VENDOR_INTEL:
302		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_INTEL_21145) {
303			found = 1;
304			sc->dc_type = DC_TYPE_21145;
305			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
306			sc->dc_flags |= DC_REDUCED_MII_POLL;
307			dc_eeprom_width(sc);
308			dc_read_srom(sc, sc->dc_romwidth);
309		}
310	case PCI_VENDOR_DAVICOM:
311		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9100 ||
312		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9102 ||
313		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_DAVICOM_DM9009) {
314			found = 1;
315			sc->dc_type = DC_TYPE_DM9102;
316			sc->dc_flags |= DC_TX_COALESCE|DC_TX_INTR_ALWAYS;
317			sc->dc_flags |= DC_REDUCED_MII_POLL|DC_TX_STORENFWD;
318			sc->dc_pmode = DC_PMODE_MII;
319
320			/* Increase the latency timer value. */
321			command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFLT);
322			command &= 0xFFFF00FF;
323			command |= 0x00008000;
324			pci_conf_write(pc, pa->pa_tag, DC_PCI_CFLT, command);
325		}
326		break;
327	case PCI_VENDOR_ADMTEK:
328		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_AL981) {
329			found = 1;
330			sc->dc_type = DC_TYPE_AL981;
331			sc->dc_flags |= DC_TX_USE_TX_INTR;
332			sc->dc_flags |= DC_TX_ADMTEK_WAR;
333			sc->dc_pmode = DC_PMODE_MII;
334		}
335		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ADMTEK_AN983) {
336			found = 1;
337			sc->dc_type = DC_TYPE_AN983;
338			sc->dc_flags |= DC_TX_USE_TX_INTR;
339			sc->dc_flags |= DC_TX_ADMTEK_WAR;
340			sc->dc_pmode = DC_PMODE_MII;
341		}
342		dc_eeprom_width(sc);
343		dc_read_srom(sc, sc->dc_romwidth);
344		break;
345	case PCI_VENDOR_MACRONIX:
346	case PCI_VENDOR_ACCTON:
347		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ACCTON_EN2242) {
348			found = 1;
349			sc->dc_type = DC_TYPE_AN983;
350			sc->dc_flags |= DC_TX_USE_TX_INTR;
351			sc->dc_flags |= DC_TX_ADMTEK_WAR;
352			sc->dc_pmode = DC_PMODE_MII;
353
354			dc_eeprom_width(sc);
355			dc_read_srom(sc, sc->dc_romwidth);
356		}
357		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98713) {
358			found = 1;
359			if (revision < DC_REVISION_98713A) {
360				sc->dc_type = DC_TYPE_98713;
361			}
362			if (revision >= DC_REVISION_98713A) {
363				sc->dc_type = DC_TYPE_98713A;
364				sc->dc_flags |= DC_21143_NWAY;
365			}
366			sc->dc_flags |= DC_REDUCED_MII_POLL;
367			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
368		}
369		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98715 ||
370		    PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ACCTON_EN1217) {
371			found = 1;
372			if (revision >= DC_REVISION_98715AEC_C &&
373			    revision < DC_REVISION_98725)
374				sc->dc_flags |= DC_128BIT_HASH;
375			sc->dc_type = DC_TYPE_987x5;
376			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
377			sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
378		}
379		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_MACRONIX_MX98727) {
380			found = 1;
381			sc->dc_type = DC_TYPE_987x5;
382			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
383			sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
384		}
385		break;
386	case PCI_VENDOR_COMPEX:
387		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_COMPEX_98713) {
388			found = 1;
389			if (revision < DC_REVISION_98713A) {
390				sc->dc_type = DC_TYPE_98713;
391				sc->dc_flags |= DC_REDUCED_MII_POLL;
392			}
393			if (revision >= DC_REVISION_98713A)
394				sc->dc_type = DC_TYPE_98713A;
395			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
396		}
397		break;
398	case PCI_VENDOR_LITEON:
399		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LITEON_PNICII) {
400			found = 1;
401			sc->dc_type = DC_TYPE_PNICII;
402			sc->dc_flags |= DC_TX_POLL|DC_TX_USE_TX_INTR;
403			sc->dc_flags |= DC_REDUCED_MII_POLL|DC_21143_NWAY;
404			sc->dc_flags |= DC_128BIT_HASH;
405		}
406		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LITEON_PNIC) {
407			found = 1;
408			sc->dc_type = DC_TYPE_PNIC;
409			sc->dc_flags |= DC_TX_STORENFWD|DC_TX_INTR_ALWAYS;
410			sc->dc_flags |= DC_PNIC_RX_BUG_WAR;
411			sc->dc_pnic_rx_buf = malloc(DC_RXLEN * 5, M_DEVBUF,
412			    M_NOWAIT);
413			if (sc->dc_pnic_rx_buf == NULL)
414				panic("dc_pci_attach");
415			if (revision < DC_REVISION_82C169)
416				sc->dc_pmode = DC_PMODE_SYM;
417		}
418		break;
419	case PCI_VENDOR_ASIX:
420		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ASIX_AX88140A) {
421			found = 1;
422			sc->dc_type = DC_TYPE_ASIX;
423			sc->dc_flags |= DC_TX_USE_TX_INTR|DC_TX_INTR_FIRSTFRAG;
424			sc->dc_flags |= DC_REDUCED_MII_POLL;
425			sc->dc_pmode = DC_PMODE_MII;
426		}
427		break;
428	case PCI_VENDOR_CONEXANT:
429		if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CONEXANT_RS7112) {
430			found = 1;
431			sc->dc_type = DC_TYPE_CONEXANT;
432			sc->dc_flags |= DC_TX_INTR_ALWAYS;
433			sc->dc_flags |= DC_REDUCED_MII_POLL;
434			sc->dc_pmode = DC_PMODE_MII;
435			dc_eeprom_width(sc);
436			dc_read_srom(sc, sc->dc_romwidth);
437		}
438		break;
439	}
440	if (found == 0) {
441		/* This shouldn't happen if probe has done it's job... */
442		printf(": unknown device: %x:%x\n",
443		    PCI_VENDOR(pa->pa_id), PCI_PRODUCT(pa->pa_id));
444		goto fail;
445	}
446
447	/* Save the cache line size. */
448	if (DC_IS_DAVICOM(sc))
449		sc->dc_cachesize = 0;
450	else
451		sc->dc_cachesize = pci_conf_read(pc, pa->pa_tag,
452		    DC_PCI_CFLT) & 0xFF;
453
454	/* Reset the adapter. */
455	dc_reset(sc);
456
457	/* Take 21143 out of snooze mode */
458	if (DC_IS_INTEL(sc)) {
459		command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFDD);
460		command &= ~(DC_CFDD_SNOOZE_MODE|DC_CFDD_SLEEP_MODE);
461		pci_conf_write(pc, pa->pa_tag, DC_PCI_CFDD, command);
462	}
463
464	/*
465	 * If we discover later (in dc_attach) that we have an
466	 * MII with no PHY, we need to have the 21143 drive the LEDs.
467	 * Except there are some systems like the NEC VersaPro NoteBook PC
468	 * which have no LEDs, and twiddling these bits has adverse effects
469	 * on them. (I.e. you suddenly can't get a link.)
470	 *
471	 * If mii_attach() returns an error, we leave the DC_TULIP_LEDS
472	 * bit set, else we clear it. Since our dc(4) driver is split into
473	 * bus-dependent and bus-independent parts, we must do set this bit
474	 * here while we are able to do PCI configuration reads.
475	 */
476	if (DC_IS_INTEL(sc)) {
477		if (pci_conf_read(pc, pa->pa_tag, DC_PCI_CSID) != 0x80281033)
478			sc->dc_flags |= DC_TULIP_LEDS;
479	}
480
481	/*
482	 * Try to learn something about the supported media.
483	 * We know that ASIX and ADMtek and Davicom devices
484	 * will *always* be using MII media, so that's a no-brainer.
485	 * The tricky ones are the Macronix/PNIC II and the
486	 * Intel 21143.
487	 */
488	if (DC_IS_INTEL(sc))
489		dc_parse_21143_srom(sc);
490	else if (DC_IS_MACRONIX(sc) || DC_IS_PNICII(sc)) {
491		if (sc->dc_type == DC_TYPE_98713)
492			sc->dc_pmode = DC_PMODE_MII;
493		else
494			sc->dc_pmode = DC_PMODE_SYM;
495	} else if (!sc->dc_pmode)
496		sc->dc_pmode = DC_PMODE_MII;
497
498#ifdef __sparc64__
499	{
500		extern void myetheraddr(u_char *);
501
502		if (OF_getprop(PCITAG_NODE(pa->pa_tag), "local-mac-address",
503		    sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN) <= 0)
504			myetheraddr(sc->sc_arpcom.ac_enaddr);
505		if (sc->sc_arpcom.ac_enaddr[0] == 0x00 &&
506		    sc->sc_arpcom.ac_enaddr[1] == 0x03 &&
507		    sc->sc_arpcom.ac_enaddr[2] == 0xcc)
508			sc->dc_flags |= DC_MOMENCO_BOTCH;
509		sc->sc_hasmac = 1;
510	}
511#endif
512
513#ifdef SRM_MEDIA
514	sc->dc_srm_media = 0;
515
516	/* Remember the SRM console media setting */
517	if (DC_IS_INTEL(sc)) {
518		command = pci_conf_read(pc, pa->pa_tag, DC_PCI_CFDD);
519		command &= ~(DC_CFDD_SNOOZE_MODE|DC_CFDD_SLEEP_MODE);
520		switch ((command >> 8) & 0xff) {
521		case 3:
522			sc->dc_srm_media = IFM_10_T;
523			break;
524		case 4:
525			sc->dc_srm_media = IFM_10_T | IFM_FDX;
526			break;
527		case 5:
528			sc->dc_srm_media = IFM_100_TX;
529			break;
530		case 6:
531			sc->dc_srm_media = IFM_100_TX | IFM_FDX;
532			break;
533		}
534		if (sc->dc_srm_media)
535			sc->dc_srm_media |= IFM_ACTIVE | IFM_ETHER;
536	}
537#endif
538	dc_eeprom_width(sc);
539	dc_attach(sc);
540
541fail:
542	splx(s);
543}
544
545struct cfattach dc_pci_ca = {
546	sizeof(struct dc_softc), dc_pci_match, dc_pci_attach
547};
548