if_de.c revision 1.11
1/*    $OpenBSD: if_de.c,v 1.11 1996/06/10 07:34:41 deraadt Exp $       */
2/*    $NetBSD: if_de.c,v 1.22.4.1 1996/06/03 20:32:07 cgd Exp $       */
3
4/*-
5 * Copyright (c) 1994, 1995 Matt Thomas (matt@lkg.dec.com)
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. The name of the author may not be used to endorse or promote products
14 *    derived from this software withough specific prior written permission
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28/*
29 * DEC DC21040 PCI Ethernet Controller
30 *
31 * Written by Matt Thomas
32 * BPF support code stolen directly from if_ec.c
33 *
34 *   This driver supports the DEC DE435 or any other PCI
35 *   board which support DC21040, DC21041, or DC21140 (mostly).
36 */
37
38#if defined(__FreeBSD__)
39#include "de.h"
40#endif
41#if NDE > 0 || !defined(__FreeBSD__)
42
43#include <sys/param.h>
44#include <sys/systm.h>
45#include <sys/mbuf.h>
46#include <sys/protosw.h>
47#include <sys/socket.h>
48#include <sys/ioctl.h>
49#include <sys/errno.h>
50#include <sys/malloc.h>
51#include <sys/kernel.h>
52#include <sys/proc.h>	/* only for declaration of wakeup() used by vm.h */
53#if defined(__FreeBSD__)
54#include <sys/devconf.h>
55#include <machine/clock.h>
56#elif defined(__bsdi__) || defined(__NetBSD__)
57#include <sys/device.h>
58#endif
59
60#include <net/if.h>
61#include <net/if_types.h>
62#include <net/if_dl.h>
63#include <net/route.h>
64
65#include "bpfilter.h"
66#if NBPFILTER > 0
67#include <net/bpf.h>
68#include <net/bpfdesc.h>
69#endif
70
71#ifdef INET
72#include <netinet/in.h>
73#include <netinet/in_systm.h>
74#include <netinet/in_var.h>
75#include <netinet/ip.h>
76#include <netinet/if_ether.h>
77#endif
78
79#include <vm/vm.h>
80#include <vm/vm_kern.h>
81#include <vm/vm_param.h>
82
83#if defined(__FreeBSD__)
84#include <pci.h>
85#if NPCI > 0
86#include <pci/pcivar.h>
87#include <pci/dc21040.h>
88#endif
89#endif /* __FreeBSD__ */
90
91#if defined(__bsdi__)
92#include <i386/pci/pci.h>
93#include <i386/pci/ic/dc21040.h>
94#include <i386/isa/isa.h>
95#include <i386/isa/icu.h>
96#include <i386/isa/dma.h>
97#include <i386/isa/isavar.h>
98#include <eisa.h>
99#if NEISA > 0
100#include <i386/eisa/eisa.h>
101#define	TULIP_EISA
102#endif
103#endif /* __bsdi__ */
104
105#if defined(__NetBSD__)
106#include <machine/bus.h>
107#include <machine/intr.h>
108
109#include <dev/pci/pcireg.h>
110#include <dev/pci/pcivar.h>
111#include <dev/ic/dc21040reg.h>
112#endif /* __NetBSD__ */
113
114/*
115 * Intel CPUs should use I/O mapped access.
116 */
117#if defined(__i386__)
118#define	TULIP_IOMAPPED
119#endif
120
121/*
122 * This module supports
123 *	the DEC DC21040 PCI Ethernet Controller.
124 *	the DEC DC21041 PCI Ethernet Controller.
125 *	the DEC DC21140 PCI Fast Ethernet Controller.
126 */
127
128typedef struct {
129    tulip_desc_t *ri_first;
130    tulip_desc_t *ri_last;
131    tulip_desc_t *ri_nextin;
132    tulip_desc_t *ri_nextout;
133    int ri_max;
134    int ri_free;
135} tulip_ringinfo_t;
136
137#ifdef TULIP_IOMAPPED
138
139#define	TULIP_EISA_CSRSIZE	16
140#define	TULIP_PCI_CSRSIZE	8
141
142#ifndef __NetBSD__
143typedef tulip_uint16_t tulip_csrptr_t;
144
145#define	TULIP_READ_CSR(sc, csr)			(inl((sc)->tulip_csrs.csr))
146#define	TULIP_WRITE_CSR(sc, csr, val)   	outl((sc)->tulip_csrs.csr, val)
147
148#define	TULIP_READ_CSRBYTE(sc, csr)		(inb((sc)->tulip_csrs.csr))
149#define	TULIP_WRITE_CSRBYTE(sc, csr, val)	outb((sc)->tulip_csrs.csr, val)
150#else
151typedef bus_io_size_t tulip_csrptr_t;
152
153#define	TULIP_READ_CSR(sc, csr)	\
154    bus_io_read_4((sc)->tulip_bc, (sc)->tulip_ioh, (sc)->tulip_csrs.csr)
155#define	TULIP_WRITE_CSR(sc, csr, val) \
156    bus_io_write_4((sc)->tulip_bc, (sc)->tulip_ioh, (sc)->tulip_csrs.csr, (val))
157
158#define	TULIP_READ_CSRBYTE(sc, csr) \
159    bus_io_read_1((sc)->tulip_bc, (sc)->tulip_ioh, (sc)->tulip_csrs.csr)
160#define	TULIP_WRITE_CSRBYTE(sc, csr, val) \
161    bus_io_write_1((sc)->tulip_bc, (sc)->tulip_ioh, (sc)->tulip_csrs.csr, (val))
162#endif
163
164#else /* TULIP_IOMAPPED */
165
166#define	TULIP_PCI_CSRSIZE	8
167
168#ifndef __NetBSD__
169typedef volatile tulip_uint32_t *tulip_csrptr_t;
170
171/*
172 * macros to read and write CSRs.  Note that the "0 +" in
173 * READ_CSR is to prevent the macro from being an lvalue
174 * and WRITE_CSR shouldn't be assigned from.
175 */
176#define	TULIP_READ_CSR(sc, csr)		(0 + *(sc)->tulip_csrs.csr)
177#define	TULIP_WRITE_CSR(sc, csr, val) \
178	    ((void)(*(sc)->tulip_csrs.csr = (val)))
179#else
180typedef bus_mem_size_t tulip_csrptr_t;
181
182#define	TULIP_READ_CSR(sc, csr)	\
183    bus_mem_read_4((sc)->tulip_bc, (sc)->tulip_memh, (sc)->tulip_csrs.csr)
184#define	TULIP_WRITE_CSR(sc, csr, val) \
185    bus_mem_write_4((sc)->tulip_bc, (sc)->tulip_memh, (sc)->tulip_csrs.csr, \
186      (val))
187#endif
188#endif /* TULIP_IOMAPPED */
189
190typedef struct {
191    tulip_csrptr_t csr_busmode;			/* CSR0 */
192    tulip_csrptr_t csr_txpoll;			/* CSR1 */
193    tulip_csrptr_t csr_rxpoll;			/* CSR2 */
194    tulip_csrptr_t csr_rxlist;			/* CSR3 */
195    tulip_csrptr_t csr_txlist;			/* CSR4 */
196    tulip_csrptr_t csr_status;			/* CSR5 */
197    tulip_csrptr_t csr_command;			/* CSR6 */
198    tulip_csrptr_t csr_intr;			/* CSR7 */
199    tulip_csrptr_t csr_missed_frame;		/* CSR8 */
200
201    /* DC21040 specific registers */
202
203    tulip_csrptr_t csr_enetrom;			/* CSR9 */
204    tulip_csrptr_t csr_reserved;		/* CSR10 */
205    tulip_csrptr_t csr_full_duplex;		/* CSR11 */
206
207    /* DC21040/DC21041 common registers */
208
209    tulip_csrptr_t csr_sia_status;		/* CSR12 */
210    tulip_csrptr_t csr_sia_connectivity;	/* CSR13 */
211    tulip_csrptr_t csr_sia_tx_rx;		/* CSR14 */
212    tulip_csrptr_t csr_sia_general;		/* CSR15 */
213
214    /* DC21140/DC21041 common registers */
215
216    tulip_csrptr_t csr_srom_mii;		/* CSR9 */
217    tulip_csrptr_t csr_gp_timer;		/* CSR11 */
218
219    /* DC21140 specific registers */
220
221    tulip_csrptr_t csr_gp;			/* CSR12 */
222    tulip_csrptr_t csr_watchdog;		/* CSR15 */
223
224    /* DC21041 specific registers */
225
226    tulip_csrptr_t csr_bootrom;			/* CSR10 */
227} tulip_regfile_t;
228
229/*
230 * The DC21040 has a stupid restriction in that the receive
231 * buffers must be longword aligned.  But since Ethernet
232 * headers are not a multiple of longwords in size this forces
233 * the data to non-longword aligned.  Since IP requires the
234 * data to be longword aligned, we need to copy it after it has
235 * been DMA'ed in our memory.
236 *
237 * Since we have to copy it anyways, we might as well as allocate
238 * dedicated receive space for the input.  This allows to use a
239 * small receive buffer size and more ring entries to be able to
240 * better keep with a flood of tiny Ethernet packets.
241 *
242 * The receive space MUST ALWAYS be a multiple of the page size.
243 * And the number of receive descriptors multiplied by the size
244 * of the receive buffers must equal the recevive space.  This
245 * is so that we can manipulate the page tables so that even if a
246 * packet wraps around the end of the receive space, we can
247 * treat it as virtually contiguous.
248 *
249 * The above used to be true (the stupid restriction is still true)
250 * but we gone to directly DMA'ing into MBUFs because with 100Mb
251 * cards the copying is just too much of a hit.
252 */
253#if defined(__alpha__)
254#define	TULIP_COPY_RXDATA	1
255#endif
256
257#define	TULIP_RXDESCS		16
258#define	TULIP_TXDESCS		128
259#define	TULIP_RXQ_TARGET	16
260#define	TULIP_RX_BUFLEN		((MCLBYTES < 2048 ? MCLBYTES : 2048) - 16)
261
262typedef enum {
263    TULIP_DC21040_GENERIC,
264    TULIP_DC21040_ZX314_MASTER,
265    TULIP_DC21040_ZX314_SLAVE,
266    TULIP_DC21140_DEC_EB,
267    TULIP_DC21140_DEC_DE500,
268    TULIP_DC21140_COGENT_EM100,
269    TULIP_DC21140_ZNYX_ZX34X,
270    TULIP_DC21041_GENERIC,
271    TULIP_DC21041_DE450
272} tulip_board_t;
273
274typedef struct _tulip_softc_t tulip_softc_t;
275
276typedef struct {
277    tulip_board_t bd_type;
278    const char *bd_description;
279    int (*bd_media_probe)(tulip_softc_t *sc);
280    void (*bd_media_select)(tulip_softc_t *sc);
281} tulip_boardsw_t;
282
283typedef enum {
284    TULIP_DC21040, TULIP_DC21140,
285    TULIP_DC21041, TULIP_DE425,
286    TULIP_CHIPID_UNKNOWN
287} tulip_chipid_t;
288
289typedef enum {
290    TULIP_PROBE_INACTIVE, TULIP_PROBE_10BASET, TULIP_PROBE_AUI,
291    TULIP_PROBE_BNC
292} tulip_probe_state_t;
293
294typedef enum {
295    TULIP_MEDIA_UNKNOWN, TULIP_MEDIA_10BASET,
296    TULIP_MEDIA_BNC, TULIP_MEDIA_AUI,
297    TULIP_MEDIA_BNCAUI, TULIP_MEDIA_100BASET
298} tulip_media_t;
299
300struct _tulip_softc_t {
301#if defined(__bsdi__)
302    struct device tulip_dev;		/* base device */
303    struct isadev tulip_id;		/* ISA device */
304    struct intrhand tulip_ih;		/* intrrupt vectoring */
305    struct atshutdown tulip_ats;	/* shutdown hook */
306#endif
307#if defined(__NetBSD__)
308    struct device tulip_dev;		/* base device */
309    void *tulip_ih;			/* intrrupt vectoring */
310    void *tulip_ats;			/* shutdown hook */
311    bus_chipset_tag_t tulip_bc;
312    pci_chipset_tag_t tulip_pc;
313#ifdef TULIP_IOMAPPED
314    bus_io_handle_t tulip_ioh;		/* I/O region handle */
315#else
316    bus_io_handle_t tulip_memh;		/* memory region handle */
317#endif
318#endif
319    char tulip_xname[IFNAMSIZ];		/* name + unit number */
320    struct arpcom tulip_ac;
321    tulip_regfile_t tulip_csrs;
322    unsigned tulip_flags;
323#define	TULIP_WANTSETUP		0x0001
324#define	TULIP_WANTHASH		0x0002
325#define	TULIP_DOINGSETUP	0x0004
326#define	TULIP_ALTPHYS		0x0008	/* use AUI */
327#define	TULIP_TXPROBE_ACTIVE	0x0010
328#define	TULIP_TXPROBE_OK	0x0020
329#define	TULIP_INRESET		0x0040
330#define	TULIP_WANTRXACT		0x0080
331#define	TULIP_SLAVEDROM		0x0100
332#define	TULIP_ROMOK		0x0200
333    unsigned char tulip_rombuf[128];
334    tulip_uint32_t tulip_setupbuf[192/sizeof(tulip_uint32_t)];
335    tulip_uint32_t tulip_setupdata[192/sizeof(tulip_uint32_t)];
336    tulip_uint32_t tulip_intrmask;
337    tulip_uint32_t tulip_cmdmode;
338    tulip_uint32_t tulip_revinfo;
339    tulip_uint32_t tulip_gpticks;
340    /* tulip_uint32_t tulip_bus; XXX */
341    tulip_media_t tulip_media;
342    tulip_probe_state_t tulip_probe_state;
343    tulip_chipid_t tulip_chipid;
344    const tulip_boardsw_t *tulip_boardsw;
345    tulip_softc_t *tulip_slaves;
346    struct ifqueue tulip_txq;
347    struct ifqueue tulip_rxq;
348    tulip_ringinfo_t tulip_rxinfo;
349    tulip_ringinfo_t tulip_txinfo;
350};
351
352#ifndef IFF_ALTPHYS
353#define	IFF_ALTPHYS	IFF_LINK0		/* In case it isn't defined */
354#endif
355static const char *tulip_chipdescs[] = {
356    "DC21040 [10Mb/s]",
357    "DC21140 [10-100Mb/s]",
358    "DC21041 [10Mb/s]",
359#if defined(TULIP_EISA)
360    "DE425 [10Mb/s]"
361#endif
362};
363
364#if defined(__FreeBSD__)
365typedef void ifnet_ret_t;
366typedef int ioctl_cmd_t;
367tulip_softc_t *tulips[NDE];
368#define	TULIP_UNIT_TO_SOFTC(unit)	(tulips[unit])
369#define	TULIP_IFP_TO_SOFTC(ifp)		(TULIP_UNIT_TO_SOFTC((ifp)->if_unit))
370#define	TULIP_BURSTSIZE(unit)		pci_max_burst_len
371#endif
372#if defined(__bsdi__)
373typedef int ifnet_ret_t;
374typedef int ioctl_cmd_t;
375extern struct cfdriver decd;
376#define	TULIP_UNIT_TO_SOFTC(unit)	((tulip_softc_t *) decd.cd_devs[unit])
377#define TULIP_IFP_TO_SOFTC(ifp)		(TULIP_UNIT_TO_SOFTC((ifp)->if_unit))
378#define	TULIP_BURSTSIZE(unit)		log2_burst_size
379#endif
380#if defined(__NetBSD__)
381typedef void ifnet_ret_t;
382typedef u_long ioctl_cmd_t;
383extern struct cfattach de_ca;
384extern struct cfdriver de_cd;
385#define	TULIP_UNIT_TO_SOFTC(unit)	((tulip_softc_t *) de_cd.cd_devs[unit])
386#define	TULIP_IFP_TO_SOFTC(ifp)		((tulip_softc_t *)((ifp)->if_softc))
387#endif
388
389#ifndef TULIP_BURSTSIZE
390#define	TULIP_BURSTSIZE(unit)		3
391#endif
392
393#define	tulip_if	tulip_ac.ac_if
394#ifdef __NetBSD__
395#define	tulip_unit	tulip_dev.dv_unit
396#define	tulip_name	tulip_dev.dv_cfdata->cf_driver->cd_name
397#else
398#define	tulip_unit	tulip_ac.ac_if.if_unit
399#define	tulip_name	tulip_ac.ac_if.if_name
400#endif
401#define	tulip_bpf	tulip_ac.ac_if.if_bpf
402#define	tulip_hwaddr	tulip_ac.ac_enaddr
403
404#define	TULIP_CRC32_POLY	0xEDB88320UL	/* CRC-32 Poly -- Little Endian */
405#define	TULIP_CHECK_RXCRC	0
406#define	TULIP_MAX_TXSEG		30
407
408#define	TULIP_ADDREQUAL(a1, a2) \
409	(((u_short *)a1)[0] == ((u_short *)a2)[0] \
410	 && ((u_short *)a1)[1] == ((u_short *)a2)[1] \
411	 && ((u_short *)a1)[2] == ((u_short *)a2)[2])
412#define	TULIP_ADDRBRDCST(a1) \
413	(((u_short *)a1)[0] == 0xFFFFU \
414	 && ((u_short *)a1)[1] == 0xFFFFU \
415	 && ((u_short *)a1)[2] == 0xFFFFU)
416
417static ifnet_ret_t tulip_start(struct ifnet *ifp);
418static void tulip_rx_intr(tulip_softc_t *sc);
419static void tulip_addr_filter(tulip_softc_t *sc);
420
421#if defined(__NetBSD__) && defined(__alpha__)
422/* XXX XXX NEED REAL DMA MAPPING SUPPORT XXX XXX */
423#define	vtophys(va)	__alpha_bus_XXX_dmamap(sc->tulip_bc, (void *)(va))
424
425#endif
426
427static int
428tulip_dc21040_media_probe(
429    tulip_softc_t * const sc)
430{
431    int cnt;
432
433    TULIP_WRITE_CSR(sc, csr_sia_connectivity, 0);
434    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_10BASET);
435    for (cnt = 0; cnt < 2400; cnt++) {
436	if ((TULIP_READ_CSR(sc, csr_sia_status) & TULIP_SIASTS_LINKFAIL) == 0)
437	    break;
438	DELAY(1000);
439    }
440    return (TULIP_READ_CSR(sc, csr_sia_status) & TULIP_SIASTS_LINKFAIL) != 0;
441}
442
443static void
444tulip_dc21040_media_select(
445    tulip_softc_t * const sc)
446{
447    sc->tulip_cmdmode |= TULIP_CMD_CAPTREFFCT|TULIP_CMD_THRSHLD160
448	|TULIP_CMD_BACKOFFCTR;
449    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
450    if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
451	if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
452	    printf("%s: enabling Thinwire/AUI port\n", sc->tulip_xname);
453	TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_AUI);
454	sc->tulip_flags |= TULIP_ALTPHYS;
455    } else {
456	if (sc->tulip_flags & TULIP_ALTPHYS)
457	    printf("%s: enabling 10baseT/UTP port\n", sc->tulip_xname);
458	TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_10BASET);
459	sc->tulip_flags &= ~TULIP_ALTPHYS;
460	sc->tulip_media = TULIP_MEDIA_10BASET;
461    }
462}
463
464static const tulip_boardsw_t tulip_dc21040_boardsw = {
465    TULIP_DC21040_GENERIC,
466    "",
467    tulip_dc21040_media_probe,
468    tulip_dc21040_media_select
469};
470
471static int
472tulip_zx314_media_probe(
473    tulip_softc_t * const sc)
474{
475    TULIP_WRITE_CSR(sc, csr_sia_connectivity, 0);
476    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_10BASET);
477    return 0;
478}
479
480static void
481tulip_zx314_media_select(
482    tulip_softc_t * const sc)
483{
484    sc->tulip_cmdmode |= TULIP_CMD_CAPTREFFCT|TULIP_CMD_THRSHLD160
485	|TULIP_CMD_BACKOFFCTR;
486    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
487    if (sc->tulip_flags & TULIP_ALTPHYS)
488	printf("%s: enabling 10baseT/UTP port\n", sc->tulip_xname);
489    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_10BASET);
490    sc->tulip_flags &= ~TULIP_ALTPHYS;
491    sc->tulip_media = TULIP_MEDIA_10BASET;
492}
493
494
495static const tulip_boardsw_t tulip_dc21040_zx314_master_boardsw = {
496    TULIP_DC21040_ZX314_MASTER,
497    "ZNYX ZX314 ",
498    tulip_zx314_media_probe,
499    tulip_zx314_media_select
500};
501
502static const tulip_boardsw_t tulip_dc21040_zx314_slave_boardsw = {
503    TULIP_DC21040_ZX314_SLAVE,
504    "ZNYX ZX314 ",
505    tulip_zx314_media_probe,
506    tulip_zx314_media_select
507};
508
509static int
510tulip_dc21140_evalboard_media_probe(
511    tulip_softc_t * const sc)
512{
513    TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EB_PINS);
514    TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EB_INIT);
515    TULIP_WRITE_CSR(sc, csr_command,
516	TULIP_READ_CSR(sc, csr_command) | TULIP_CMD_PORTSELECT |
517	TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE);
518    TULIP_WRITE_CSR(sc, csr_command,
519	TULIP_READ_CSR(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL);
520    DELAY(1000000);
521    return (TULIP_READ_CSR(sc, csr_gp) & TULIP_GP_EB_OK100) != 0;
522}
523
524static void
525tulip_dc21140_evalboard_media_select(
526    tulip_softc_t * const sc)
527{
528    sc->tulip_cmdmode |= TULIP_CMD_STOREFWD|TULIP_CMD_MUSTBEONE
529	|TULIP_CMD_BACKOFFCTR;
530    TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EB_PINS);
531    TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EB_INIT);
532    if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
533	if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
534	    printf("%s: enabling 100baseTX UTP port\n", sc->tulip_xname);
535	sc->tulip_cmdmode |= TULIP_CMD_PORTSELECT
536	    |TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER;
537	sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL;
538	sc->tulip_flags |= TULIP_ALTPHYS;
539	sc->tulip_media = TULIP_MEDIA_100BASET;
540    } else {
541	if (sc->tulip_flags & TULIP_ALTPHYS)
542	    printf("%s: enabling 10baseT UTP port\n", sc->tulip_xname);
543	sc->tulip_cmdmode &= ~(TULIP_CMD_PORTSELECT
544			       |TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER);
545	sc->tulip_cmdmode |= TULIP_CMD_TXTHRSHLDCTL;
546	sc->tulip_flags &= ~TULIP_ALTPHYS;
547	sc->tulip_media = TULIP_MEDIA_10BASET;
548    }
549#ifdef BIG_PACKET
550    if (sc->tulip_if.if_mtu > ETHERMTU) {
551	TULIP_WRITE_CSR(sc, csr_watchdog, TULIP_WATCHDOG_RXDISABLE|TULIP_WATCHDOG_TXDISABLE);
552    }
553#endif
554}
555
556static const tulip_boardsw_t tulip_dc21140_eb_boardsw = {
557    TULIP_DC21140_DEC_EB,
558    "",
559    tulip_dc21140_evalboard_media_probe,
560    tulip_dc21140_evalboard_media_select
561};
562
563static int
564tulip_dc21140_cogent_em100_media_probe(
565    tulip_softc_t * const sc)
566{
567    TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EM100_PINS);
568    TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EM100_INIT);
569    TULIP_WRITE_CSR(sc, csr_command,
570	TULIP_READ_CSR(sc, csr_command) | TULIP_CMD_PORTSELECT |
571	TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE);
572    TULIP_WRITE_CSR(sc, csr_command,
573	TULIP_READ_CSR(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL);
574    return 1;
575}
576
577static void
578tulip_dc21140_cogent_em100_media_select(
579    tulip_softc_t * const sc)
580{
581    sc->tulip_cmdmode |= TULIP_CMD_STOREFWD|TULIP_CMD_MUSTBEONE
582	|TULIP_CMD_BACKOFFCTR;
583    TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EM100_PINS);
584    TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EM100_INIT);
585    if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
586	printf("%s: enabling 100baseTX UTP port\n", sc->tulip_xname);
587    sc->tulip_cmdmode |= TULIP_CMD_PORTSELECT
588	|TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER;
589    sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL;
590    sc->tulip_flags |= TULIP_ALTPHYS;
591    sc->tulip_media = TULIP_MEDIA_100BASET;
592#ifdef BIG_PACKET
593    if (sc->tulip_if.if_mtu > ETHERMTU) {
594	TULIP_WRITE_CSR(sc, csr_watchdog, TULIP_WATCHDOG_RXDISABLE|TULIP_WATCHDOG_TXDISABLE);
595    }
596#endif
597}
598
599static const tulip_boardsw_t tulip_dc21140_cogent_em100_boardsw = {
600    TULIP_DC21140_COGENT_EM100,
601    "Cogent EM100 ",
602    tulip_dc21140_cogent_em100_media_probe,
603    tulip_dc21140_cogent_em100_media_select
604};
605
606
607static int
608tulip_dc21140_znyx_zx34x_media_probe(
609    tulip_softc_t * const sc)
610{
611    TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_ZX34X_PINS);
612    TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_ZX34X_INIT);
613    TULIP_WRITE_CSR(sc, csr_command,
614	TULIP_READ_CSR(sc, csr_command) | TULIP_CMD_PORTSELECT |
615	TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE);
616    TULIP_WRITE_CSR(sc, csr_command,
617	TULIP_READ_CSR(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL);
618    DELAY(1000000);
619
620    return (TULIP_READ_CSR(sc, csr_gp) & TULIP_GP_ZX34X_OK10);
621}
622
623static void
624tulip_dc21140_znyx_zx34x_media_select(
625    tulip_softc_t * const sc)
626{
627    sc->tulip_cmdmode |= TULIP_CMD_STOREFWD|TULIP_CMD_MUSTBEONE
628	|TULIP_CMD_BACKOFFCTR;
629    TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_ZX34X_PINS);
630    TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_ZX34X_INIT);
631    if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
632	if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
633	    printf("%s: enabling 100baseTX UTP port\n", sc->tulip_xname);
634	sc->tulip_cmdmode |= TULIP_CMD_PORTSELECT
635	    |TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER;
636	sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL;
637	sc->tulip_flags |= TULIP_ALTPHYS;
638	sc->tulip_media = TULIP_MEDIA_100BASET;
639    } else {
640	if (sc->tulip_flags & TULIP_ALTPHYS)
641	    printf("%s: enabling 10baseT UTP port\n", sc->tulip_xname);
642	sc->tulip_cmdmode &= ~(TULIP_CMD_PORTSELECT
643			       |TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER);
644	sc->tulip_cmdmode |= TULIP_CMD_TXTHRSHLDCTL;
645	sc->tulip_flags &= ~TULIP_ALTPHYS;
646	sc->tulip_media = TULIP_MEDIA_10BASET;
647    }
648#ifdef BIG_PACKET
649    if (sc->tulip_if.if_mtu > ETHERMTU) {
650	TULIP_WRITE_CSR(sc, csr_watchdog, TULIP_WATCHDOG_RXDISABLE|TULIP_WATCHDOG_TXDISABLE);
651    }
652#endif
653}
654
655static const tulip_boardsw_t tulip_dc21140_znyx_zx34x_boardsw = {
656    TULIP_DC21140_ZNYX_ZX34X,
657    "ZNYX ZX34X ",
658    tulip_dc21140_znyx_zx34x_media_probe,
659    tulip_dc21140_znyx_zx34x_media_select
660};
661
662static int
663tulip_dc21140_de500_media_probe(
664    tulip_softc_t * const sc)
665{
666    TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_DE500_PINS);
667    DELAY(1000);
668    TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_DE500_HALFDUPLEX);
669    if ((TULIP_READ_CSR(sc, csr_gp) &
670	(TULIP_GP_DE500_NOTOK_100|TULIP_GP_DE500_NOTOK_10)) !=
671	(TULIP_GP_DE500_NOTOK_100|TULIP_GP_DE500_NOTOK_10))
672	return (TULIP_READ_CSR(sc, csr_gp) & TULIP_GP_DE500_NOTOK_100) == 0;
673    TULIP_WRITE_CSR(sc, csr_gp,
674	TULIP_GP_DE500_HALFDUPLEX|TULIP_GP_DE500_FORCE_100);
675    TULIP_WRITE_CSR(sc, csr_command,
676	TULIP_READ_CSR(sc, csr_command) | TULIP_CMD_PORTSELECT |
677	TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE);
678    TULIP_WRITE_CSR(sc, csr_command,
679	TULIP_READ_CSR(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL);
680    DELAY(1000000);
681    return (TULIP_READ_CSR(sc, csr_gp) & TULIP_GP_DE500_NOTOK_100) == 0;
682}
683
684static void
685tulip_dc21140_de500_media_select(
686    tulip_softc_t * const sc)
687{
688    sc->tulip_cmdmode |= TULIP_CMD_STOREFWD|TULIP_CMD_MUSTBEONE
689	|TULIP_CMD_BACKOFFCTR;
690    TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_DE500_PINS);
691    if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
692	if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
693	    printf("%s: enabling 100baseTX UTP port\n", sc->tulip_xname);
694	sc->tulip_cmdmode |= TULIP_CMD_PORTSELECT
695	    |TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER;
696	sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL;
697	sc->tulip_flags |= TULIP_ALTPHYS;
698	sc->tulip_media = TULIP_MEDIA_100BASET;
699	TULIP_WRITE_CSR(sc, csr_gp,
700	    TULIP_GP_DE500_HALFDUPLEX|TULIP_GP_DE500_FORCE_100);
701    } else {
702	if (sc->tulip_flags & TULIP_ALTPHYS)
703	    printf("%s: enabling 10baseT UTP port\n", sc->tulip_xname);
704	sc->tulip_cmdmode &= ~(TULIP_CMD_PORTSELECT
705			       |TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER);
706	sc->tulip_cmdmode |= TULIP_CMD_TXTHRSHLDCTL;
707	sc->tulip_flags &= ~TULIP_ALTPHYS;
708	sc->tulip_media = TULIP_MEDIA_10BASET;
709	TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_DE500_HALFDUPLEX);
710    }
711#ifdef BIG_PACKET
712    if (sc->tulip_if.if_mtu > ETHERMTU) {
713	TULIP_WRITE_CSR(sc, csr_watchdog, TULIP_WATCHDOG_RXDISABLE|TULIP_WATCHDOG_TXDISABLE);
714    }
715#endif
716}
717
718static const tulip_boardsw_t tulip_dc21140_de500_boardsw = {
719    TULIP_DC21140_DEC_DE500, "Digital DE500 ",
720    tulip_dc21140_de500_media_probe,
721    tulip_dc21140_de500_media_select
722};
723
724static int
725tulip_dc21041_media_probe(
726    tulip_softc_t * const sc)
727{
728    return 0;
729}
730
731#ifdef BIG_PACKET
732#define TULIP_DC21041_SIAGEN_WATCHDOG	(sc->tulip_if.if_mtu > ETHERMTU ? TULIP_WATCHDOG_RXDISABLE|TULIP_WATCHDOG_TXDISABLE : 0)
733#else
734#define	TULIP_DC21041_SIAGEN_WATCHDOG	0
735#endif
736
737static void
738tulip_dc21041_media_select(
739    tulip_softc_t * const sc)
740{
741    sc->tulip_cmdmode |= TULIP_CMD_CAPTREFFCT|TULIP_CMD_ENHCAPTEFFCT
742	/* |TULIP_CMD_FULLDUPLEX */ |TULIP_CMD_THRSHLD160|TULIP_CMD_BACKOFFCTR;
743    sc->tulip_intrmask |= TULIP_STS_NORMALINTR|TULIP_STS_GPTIMEOUT
744	|TULIP_STS_ABNRMLINTR|TULIP_STS_LINKPASS|TULIP_STS_LINKFAIL;
745    if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
746	if ((sc->tulip_flags & TULIP_ALTPHYS) == 0) {
747	    sc->tulip_media = TULIP_MEDIA_UNKNOWN;
748	    sc->tulip_flags &= ~(TULIP_TXPROBE_OK|TULIP_TXPROBE_ACTIVE);
749	    sc->tulip_flags |= TULIP_ALTPHYS|TULIP_WANTRXACT;
750	    sc->tulip_probe_state = TULIP_PROBE_INACTIVE;
751	}
752    } else {
753	if (sc->tulip_flags & TULIP_ALTPHYS) {
754	    sc->tulip_media = TULIP_MEDIA_UNKNOWN;
755	    sc->tulip_flags &= ~(TULIP_TXPROBE_OK|TULIP_TXPROBE_ACTIVE|TULIP_ALTPHYS);
756	    sc->tulip_flags |= TULIP_WANTRXACT;
757	    sc->tulip_probe_state = TULIP_PROBE_INACTIVE;
758	}
759    }
760
761    if (TULIP_READ_CSR(sc, csr_sia_status) & TULIP_SIASTS_LINKFAIL) {
762	if (sc->tulip_media == TULIP_MEDIA_10BASET) {
763	    sc->tulip_media = TULIP_MEDIA_UNKNOWN;
764	} else if (sc->tulip_media == TULIP_MEDIA_BNC) {
765	    sc->tulip_intrmask &= ~TULIP_STS_GPTIMEOUT;
766	    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
767	    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_BNC);
768	    TULIP_WRITE_CSR(sc, csr_sia_tx_rx,        TULIP_DC21041_SIATXRX_BNC);
769	    TULIP_WRITE_CSR(sc, csr_sia_general,      TULIP_DC21041_SIAGEN_BNC|TULIP_DC21041_SIAGEN_WATCHDOG);
770	    return;
771	} else if (sc->tulip_media == TULIP_MEDIA_AUI) {
772	    sc->tulip_intrmask &= ~TULIP_STS_GPTIMEOUT;
773	    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
774	    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_AUI);
775	    TULIP_WRITE_CSR(sc, csr_sia_tx_rx,        TULIP_DC21041_SIATXRX_AUI);
776	    TULIP_WRITE_CSR(sc, csr_sia_general,      TULIP_DC21041_SIAGEN_AUI|TULIP_DC21041_SIAGEN_WATCHDOG);
777	    return;
778	}
779
780	switch (sc->tulip_probe_state) {
781	    case TULIP_PROBE_INACTIVE: {
782		TULIP_WRITE_CSR(sc, csr_command, sc->tulip_cmdmode);
783		sc->tulip_if.if_flags |= IFF_OACTIVE;
784		sc->tulip_gpticks = 200;
785		sc->tulip_probe_state = TULIP_PROBE_10BASET;
786		TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
787		TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_10BASET);
788		TULIP_WRITE_CSR(sc, csr_sia_tx_rx,        TULIP_DC21041_SIATXRX_10BASET);
789		TULIP_WRITE_CSR(sc, csr_sia_general,      TULIP_DC21041_SIAGEN_10BASET|TULIP_DC21041_SIAGEN_WATCHDOG);
790		TULIP_WRITE_CSR(sc, csr_gp_timer, 12000000 / 204800); /* 120 ms */
791		break;
792	    }
793	    case TULIP_PROBE_10BASET: {
794		if (--sc->tulip_gpticks > 0) {
795		    if ((TULIP_READ_CSR(sc, csr_sia_status) & TULIP_SIASTS_OTHERRXACTIVITY) == 0) {
796			TULIP_WRITE_CSR(sc, csr_gp_timer, 12000000 / 204800); /* 120 ms */
797			TULIP_WRITE_CSR(sc, csr_intr, sc->tulip_intrmask);
798			break;
799		    }
800		}
801		sc->tulip_gpticks = 4;
802		if (TULIP_READ_CSR(sc, csr_sia_status) & TULIP_SIASTS_OTHERRXACTIVITY) {
803		    sc->tulip_probe_state = TULIP_PROBE_BNC;
804		    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
805		    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_BNC);
806		    TULIP_WRITE_CSR(sc, csr_sia_tx_rx,        TULIP_DC21041_SIATXRX_BNC);
807		    TULIP_WRITE_CSR(sc, csr_sia_general,      TULIP_DC21041_SIAGEN_BNC|TULIP_DC21041_SIAGEN_WATCHDOG);
808		    TULIP_WRITE_CSR(sc, csr_gp_timer, 100000000 / 204800); /* 100 ms */
809		} else {
810		    sc->tulip_probe_state = TULIP_PROBE_AUI;
811		    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
812		    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_AUI);
813		    TULIP_WRITE_CSR(sc, csr_sia_tx_rx,        TULIP_DC21041_SIATXRX_AUI);
814		    TULIP_WRITE_CSR(sc, csr_sia_general,      TULIP_DC21041_SIAGEN_AUI|TULIP_DC21041_SIAGEN_WATCHDOG);
815		    TULIP_WRITE_CSR(sc, csr_gp_timer, 100000000 / 204800); /* 100 ms */
816		}
817		break;
818	    }
819	    case TULIP_PROBE_BNC:
820	    case TULIP_PROBE_AUI: {
821		if (sc->tulip_flags & TULIP_TXPROBE_OK) {
822		    sc->tulip_intrmask &= ~TULIP_STS_GPTIMEOUT;
823		    sc->tulip_flags &= ~(TULIP_TXPROBE_OK|TULIP_TXPROBE_ACTIVE);
824		    TULIP_WRITE_CSR(sc, csr_gp_timer, 0); /* disable */
825		    if ((sc->tulip_probe_state == TULIP_PROBE_AUI
826			 && sc->tulip_media != TULIP_MEDIA_AUI)
827			|| (sc->tulip_probe_state == TULIP_PROBE_BNC
828			    && sc->tulip_media != TULIP_MEDIA_AUI)) {
829			printf("%s: enabling %s port\n", sc->tulip_xname,
830			       sc->tulip_probe_state == TULIP_PROBE_BNC
831			           ? "Thinwire/BNC" : "AUI");
832			if (sc->tulip_probe_state == TULIP_PROBE_AUI)
833			    sc->tulip_media = TULIP_MEDIA_AUI;
834			else if (sc->tulip_probe_state == TULIP_PROBE_BNC)
835			    sc->tulip_media = TULIP_MEDIA_BNC;
836		    }
837		    sc->tulip_probe_state = TULIP_PROBE_INACTIVE;
838		    break;
839		}
840		if ((sc->tulip_flags & TULIP_WANTRXACT) == 0
841		    || (TULIP_READ_CSR(sc, csr_sia_status) & TULIP_SIASTS_RXACTIVITY)) {
842		    if ((sc->tulip_flags & TULIP_TXPROBE_ACTIVE) == 0) {
843			struct mbuf *m;
844			/*
845			 * Before we are sure this is the right media we need
846			 * to send a small packet to make sure there's carrier.
847			 * Strangely, BNC and AUI will 'see" receive data if
848			 * either is connected so the transmit is the only way
849			 * to verify the connectivity.
850			 */
851			MGETHDR(m, M_DONTWAIT, MT_DATA);
852			if (m == NULL) {
853			    TULIP_WRITE_CSR(sc, csr_gp_timer, 100000000 / 204800); /* 100 ms */
854			    break;
855			}
856			/*
857			 * Construct a LLC TEST message which will point to ourselves.
858			 */
859			bcopy(sc->tulip_hwaddr, mtod(m, struct ether_header *)->ether_dhost, 6);
860			bcopy(sc->tulip_hwaddr, mtod(m, struct ether_header *)->ether_shost, 6);
861			mtod(m, struct ether_header *)->ether_type = htons(3);
862			mtod(m, unsigned char *)[14] = 0;
863			mtod(m, unsigned char *)[15] = 0;
864			mtod(m, unsigned char *)[16] = 0xE3;	/* LLC Class1 TEST (no poll) */
865			m->m_len = m->m_pkthdr.len = sizeof(struct ether_header) + 3;
866			/*
867			 * send it!
868			 */
869			sc->tulip_flags |= TULIP_TXPROBE_ACTIVE;
870			sc->tulip_flags &= ~TULIP_TXPROBE_OK;
871			sc->tulip_cmdmode |= TULIP_CMD_TXRUN;
872			TULIP_WRITE_CSR(sc, csr_command, sc->tulip_cmdmode);
873			IF_PREPEND(&sc->tulip_if.if_snd, m);
874			tulip_start(&sc->tulip_if);
875			break;
876		    }
877		    sc->tulip_flags &= ~TULIP_TXPROBE_ACTIVE;
878		}
879		/*
880		 * Take 2 passes through before deciding to not
881		 * wait for receive activity.  Then take another
882		 * two passes before spitting out a warning.
883		 */
884		if (sc->tulip_gpticks > 0 && --sc->tulip_gpticks == 0) {
885		    if (sc->tulip_flags & TULIP_WANTRXACT) {
886			sc->tulip_flags &= ~TULIP_WANTRXACT;
887			sc->tulip_gpticks = 4;
888		    } else {
889			printf("%s: autosense failed: cable problem?\n",
890			       sc->tulip_xname);
891		    }
892		}
893		/*
894		 * Since this media failed to probe, try the other one.
895		 */
896		if (sc->tulip_probe_state == TULIP_PROBE_AUI) {
897		    sc->tulip_probe_state = TULIP_PROBE_BNC;
898		    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
899		    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_BNC);
900		    TULIP_WRITE_CSR(sc, csr_sia_tx_rx,        TULIP_DC21041_SIATXRX_BNC);
901		    TULIP_WRITE_CSR(sc, csr_sia_general,      TULIP_DC21041_SIAGEN_BNC|TULIP_DC21041_SIAGEN_WATCHDOG);
902		    TULIP_WRITE_CSR(sc, csr_gp_timer, 100000000 / 204800); /* 100 ms */
903		} else {
904		    sc->tulip_probe_state = TULIP_PROBE_AUI;
905		    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
906		    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_AUI);
907		    TULIP_WRITE_CSR(sc, csr_sia_tx_rx,        TULIP_DC21041_SIATXRX_AUI);
908		    TULIP_WRITE_CSR(sc, csr_sia_general,      TULIP_DC21041_SIAGEN_AUI|TULIP_DC21041_SIAGEN_WATCHDOG);
909		    TULIP_WRITE_CSR(sc, csr_gp_timer, 100000000 / 204800); /* 100 ms */
910		}
911		TULIP_WRITE_CSR(sc, csr_intr, sc->tulip_intrmask);
912		break;
913	    }
914	}
915    } else {
916	/*
917	 * If the link has passed LinkPass, 10baseT is the
918	 * proper media to use.
919	 */
920	if (sc->tulip_media != TULIP_MEDIA_10BASET)
921	    printf("%s: enabling 10baseT/UTP port\n", sc->tulip_xname);
922	if (sc->tulip_media != TULIP_MEDIA_10BASET
923		|| (sc->tulip_flags & TULIP_INRESET)) {
924	    sc->tulip_media = TULIP_MEDIA_10BASET;
925	    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET);
926	    TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_DC21041_SIACONN_10BASET);
927	    TULIP_WRITE_CSR(sc, csr_sia_tx_rx,        TULIP_DC21041_SIATXRX_10BASET);
928	    TULIP_WRITE_CSR(sc, csr_sia_general,      TULIP_DC21041_SIAGEN_10BASET|TULIP_DC21041_SIAGEN_WATCHDOG);
929	}
930	TULIP_WRITE_CSR(sc, csr_gp_timer, 0); /* disable */
931	sc->tulip_gpticks = 1;
932	sc->tulip_probe_state = TULIP_PROBE_10BASET;
933	sc->tulip_intrmask &= ~TULIP_STS_GPTIMEOUT;
934	sc->tulip_if.if_flags &= ~IFF_OACTIVE;
935    }
936    TULIP_WRITE_CSR(sc, csr_intr, sc->tulip_intrmask);
937}
938
939static const tulip_boardsw_t tulip_dc21041_boardsw = {
940    TULIP_DC21041_GENERIC,
941    "",
942    tulip_dc21041_media_probe,
943    tulip_dc21041_media_select
944};
945
946static const tulip_boardsw_t tulip_dc21041_de450_boardsw = {
947    TULIP_DC21041_DE450,
948    "Digital DE450 ",
949    tulip_dc21041_media_probe,
950    tulip_dc21041_media_select
951};
952
953static void
954tulip_reset(
955    tulip_softc_t * const sc)
956{
957    tulip_ringinfo_t *ri;
958    tulip_desc_t *di;
959
960    TULIP_WRITE_CSR(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
961    DELAY(10);	/* Wait 10 microseconds (actually 50 PCI cycles but at
962		   33MHz that comes to two microseconds but wait a
963		   bit longer anyways) */
964
965    sc->tulip_flags |= TULIP_INRESET;
966    sc->tulip_intrmask = 0;
967    TULIP_WRITE_CSR(sc, csr_intr, sc->tulip_intrmask);
968
969    TULIP_WRITE_CSR(sc, csr_txlist, vtophys(&sc->tulip_txinfo.ri_first[0]));
970    TULIP_WRITE_CSR(sc, csr_rxlist, vtophys(&sc->tulip_rxinfo.ri_first[0]));
971    TULIP_WRITE_CSR(sc, csr_busmode,
972	(1 << (TULIP_BURSTSIZE(sc->tulip_unit) + 8))
973	|TULIP_BUSMODE_CACHE_ALIGN8
974	|(BYTE_ORDER != LITTLE_ENDIAN ? TULIP_BUSMODE_BIGENDIAN : 0));
975
976    sc->tulip_txq.ifq_maxlen = TULIP_TXDESCS;
977    /*
978     * Free all the mbufs that were on the transmit ring.
979     */
980    for (;;) {
981	struct mbuf *m;
982	IF_DEQUEUE(&sc->tulip_txq, m);
983	if (m == NULL)
984	    break;
985	m_freem(m);
986    }
987
988    ri = &sc->tulip_txinfo;
989    ri->ri_nextin = ri->ri_nextout = ri->ri_first;
990    ri->ri_free = ri->ri_max;
991    for (di = ri->ri_first; di < ri->ri_last; di++)
992	di->d_status = 0;
993
994    /*
995     * We need to collect all the mbufs were on the
996     * receive ring before we reinit it either to put
997     * them back on or to know if we have to allocate
998     * more.
999     */
1000    ri = &sc->tulip_rxinfo;
1001    ri->ri_nextin = ri->ri_nextout = ri->ri_first;
1002    ri->ri_free = ri->ri_max;
1003    for (di = ri->ri_first; di < ri->ri_last; di++) {
1004	di->d_status = 0;
1005	di->d_length1 = 0; di->d_addr1 = 0;
1006	di->d_length2 = 0; di->d_addr2 = 0;
1007    }
1008    for (;;) {
1009	struct mbuf *m;
1010	IF_DEQUEUE(&sc->tulip_rxq, m);
1011	if (m == NULL)
1012	    break;
1013	m_freem(m);
1014    }
1015
1016    (*sc->tulip_boardsw->bd_media_select)(sc);
1017
1018    sc->tulip_intrmask |= TULIP_STS_NORMALINTR|TULIP_STS_RXINTR|TULIP_STS_TXINTR
1019	|TULIP_STS_ABNRMLINTR|TULIP_STS_SYSERROR|TULIP_STS_TXSTOPPED
1020	    |TULIP_STS_TXBABBLE|TULIP_STS_LINKFAIL|TULIP_STS_RXSTOPPED;
1021    sc->tulip_flags &= ~(TULIP_DOINGSETUP|TULIP_WANTSETUP|TULIP_INRESET);
1022    tulip_addr_filter(sc);
1023}
1024
1025static void
1026tulip_init(
1027    tulip_softc_t * const sc)
1028{
1029    if (sc->tulip_if.if_flags & IFF_UP) {
1030	sc->tulip_if.if_flags |= IFF_RUNNING;
1031	if (sc->tulip_if.if_flags & IFF_PROMISC) {
1032	    sc->tulip_cmdmode |= TULIP_CMD_PROMISCUOUS;
1033	} else {
1034	    sc->tulip_cmdmode &= ~TULIP_CMD_PROMISCUOUS;
1035	    if (sc->tulip_if.if_flags & IFF_ALLMULTI) {
1036		sc->tulip_cmdmode |= TULIP_CMD_ALLMULTI;
1037	    } else {
1038		sc->tulip_cmdmode &= ~TULIP_CMD_ALLMULTI;
1039	    }
1040	}
1041	sc->tulip_cmdmode |= TULIP_CMD_TXRUN;
1042	if ((sc->tulip_flags & TULIP_WANTSETUP) == 0) {
1043	    tulip_rx_intr(sc);
1044	    sc->tulip_cmdmode |= TULIP_CMD_RXRUN;
1045	    sc->tulip_intrmask |= TULIP_STS_RXSTOPPED;
1046	} else {
1047	    sc->tulip_intrmask &= ~TULIP_STS_RXSTOPPED;
1048	    tulip_start(&sc->tulip_if);
1049	}
1050	TULIP_WRITE_CSR(sc, csr_intr, sc->tulip_intrmask);
1051	TULIP_WRITE_CSR(sc, csr_command, sc->tulip_cmdmode);
1052    } else {
1053	tulip_reset(sc);
1054	sc->tulip_if.if_flags &= ~IFF_RUNNING;
1055    }
1056}
1057
1058static void
1059tulip_rx_intr(
1060    tulip_softc_t * const sc)
1061{
1062    tulip_ringinfo_t * const ri = &sc->tulip_rxinfo;
1063    struct ifnet * const ifp = &sc->tulip_if;
1064
1065    for (;;) {
1066	struct ether_header eh;
1067	tulip_desc_t *eop = ri->ri_nextin;
1068	int total_len = 0, last_offset = 0;
1069	struct mbuf *ms = NULL, *me = NULL;
1070	int accept = 0;
1071
1072	if (sc->tulip_rxq.ifq_len < TULIP_RXQ_TARGET)
1073	    goto queue_mbuf;
1074
1075	if (((volatile tulip_desc_t *) eop)->d_status & TULIP_DSTS_OWNER)
1076	    return;
1077
1078	/*
1079	 * It is possible (though improbable unless the BIG_PACKET support
1080	 * is enabled) for a received packet to cross more than one receive
1081	 * descriptor.
1082	 */
1083	while ((((volatile tulip_desc_t *) eop)->d_status & TULIP_DSTS_RxLASTDESC) == 0) {
1084	    if (++eop == ri->ri_last)
1085		eop = ri->ri_first;
1086	    if (((volatile tulip_desc_t *) eop)->d_status & TULIP_DSTS_OWNER)
1087		return;
1088	    total_len++;
1089	}
1090
1091	/*
1092	 * Dequeue the first buffer for the start of the packet.  Hopefully this
1093	 * will be the only one we need to dequeue.  However, if the packet consumed
1094	 * multiple descriptors, then we need to dequeue those buffers and chain to
1095	 * the starting mbuf.  All buffers but the last buffer have the same length
1096	 * so we can set that now.  (we add to last_offset instead of multiplying
1097	 * since we normally won't go into the loop and thereby saving a ourselves
1098	 * from doing a multiplication by 0 in the normal case).
1099	 */
1100	IF_DEQUEUE(&sc->tulip_rxq, ms);
1101	for (me = ms; total_len > 0; total_len--) {
1102	    me->m_len = TULIP_RX_BUFLEN;
1103	    last_offset += TULIP_RX_BUFLEN;
1104	    IF_DEQUEUE(&sc->tulip_rxq, me->m_next);
1105	    me = me->m_next;
1106	}
1107
1108	/*
1109	 *  Now get the size of received packet.
1110	 */
1111	total_len = ((eop->d_status >> 16) & 0x7FFF) - 4;
1112	if ((eop->d_status & TULIP_DSTS_ERRSUM) == 0
1113#ifdef BIG_PACKET
1114	     || (total_len <= sc->tulip_if.if_mtu + sizeof(struct ether_header) &&
1115		 (eop->d_status & (TULIP_DSTS_RxBADLENGTH|TULIP_DSTS_RxRUNT|
1116				  TULIP_DSTS_RxCOLLSEEN|TULIP_DSTS_RxBADCRC|
1117				  TULIP_DSTS_RxOVERFLOW)))
1118#endif
1119		) {
1120	    me->m_len = total_len - last_offset;
1121	    eh = *mtod(ms, struct ether_header *);
1122#if NBPFILTER > 0
1123	    if (sc->tulip_bpf != NULL)
1124		if (me == ms)
1125		    bpf_tap(sc->tulip_bpf, mtod(ms, caddr_t), total_len);
1126		else
1127		    bpf_mtap(sc->tulip_bpf, ms);
1128#endif
1129	    if ((sc->tulip_if.if_flags & IFF_PROMISC)
1130		    && (eh.ether_dhost[0] & 1) == 0
1131		    && !TULIP_ADDREQUAL(eh.ether_dhost, sc->tulip_ac.ac_enaddr))
1132		    goto next;
1133	    accept = 1;
1134	    total_len -= sizeof(struct ether_header);
1135	} else {
1136	    ifp->if_ierrors++;
1137	}
1138      next:
1139	ifp->if_ipackets++;
1140	if (++eop == ri->ri_last)
1141	    eop = ri->ri_first;
1142	ri->ri_nextin = eop;
1143      queue_mbuf:
1144	/*
1145	 * Either we are priming the TULIP with mbufs (m == NULL)
1146	 * or we are about to accept an mbuf for the upper layers
1147	 * so we need to allocate an mbuf to replace it.  If we
1148	 * can't replace, then count it as an input error and reuse
1149	 * the mbuf.  *** Note that if this packet crossed multiple
1150	 * descriptors we don't even try to reallocate all the mbufs
1151	 * here.  Instead we rely on the test of the beginning of
1152	 * the loop to refill for the extra consumed mbufs.
1153	 */
1154	if (accept || ms == NULL) {
1155	    struct mbuf *m0;
1156	    MGETHDR(m0, M_DONTWAIT, MT_DATA);
1157	    if (m0 != NULL) {
1158#if defined(TULIP_COPY_RXDATA)
1159		if (!accept || total_len >= MHLEN) {
1160#endif
1161		    MCLGET(m0, M_DONTWAIT);
1162		    if ((m0->m_flags & M_EXT) == 0) {
1163			m_freem(m0);
1164			m0 = NULL;
1165		    }
1166#if defined(TULIP_COPY_RXDATA)
1167		}
1168#endif
1169	    }
1170	    if (accept) {
1171		if (m0 != NULL) {
1172#if defined(__bsdi__)
1173		    eh.ether_type = ntohs(eh.ether_type);
1174#endif
1175#if !defined(TULIP_COPY_RXDATA)
1176		    ms->m_data += sizeof(struct ether_header);
1177		    ms->m_len -= sizeof(struct ether_header);
1178		    ms->m_pkthdr.len = total_len;
1179		    ms->m_pkthdr.rcvif = ifp;
1180		    ether_input(ifp, &eh, ms);
1181		    ms = m0;
1182#else
1183#ifdef BIG_PACKET
1184#error BIG_PACKET is incompatible with TULIP_COPY_RXDATA
1185#endif
1186		    if (ms == me)
1187/*XXX?*/		bcopy(mtod(ms, caddr_t) + sizeof(struct ether_header),
1188			      mtod(m0, caddr_t), total_len);
1189		    else
1190/*XXX?*/		m_copydata(ms, 0, total_len, mtod(m0, caddr_t));
1191		    m0->m_len = m0->m_pkthdr.len = total_len;
1192		    m0->m_pkthdr.rcvif = ifp;
1193		    ether_input(ifp, &eh, m0);
1194#endif
1195		} else {
1196		    ifp->if_ierrors++;
1197		}
1198	    } else {
1199		ms = m0;
1200	    }
1201	}
1202	if (ms == NULL)
1203	    return;
1204	/*
1205	 * Now give the buffer(s) to the TULIP and save in our
1206	 * receive queue.
1207	 */
1208	do {
1209	    ri->ri_nextout->d_length1 = TULIP_RX_BUFLEN;
1210	    ri->ri_nextout->d_addr1 = vtophys(mtod(ms, caddr_t));
1211	    ri->ri_nextout->d_status = TULIP_DSTS_OWNER;
1212	    if (++ri->ri_nextout == ri->ri_last)
1213		ri->ri_nextout = ri->ri_first;
1214	    me = ms->m_next;
1215	    ms->m_next = NULL;
1216	    IF_ENQUEUE(&sc->tulip_rxq, ms);
1217	} while ((ms = me) != NULL);
1218    }
1219}
1220
1221static int
1222tulip_tx_intr(
1223    tulip_softc_t * const sc)
1224{
1225    tulip_ringinfo_t * const ri = &sc->tulip_txinfo;
1226    struct mbuf *m;
1227    int xmits = 0;
1228
1229    while (ri->ri_free < ri->ri_max) {
1230	if (((volatile tulip_desc_t *) ri->ri_nextin)->d_status & TULIP_DSTS_OWNER)
1231	    break;
1232
1233	if (ri->ri_nextin->d_flag & TULIP_DFLAG_TxLASTSEG) {
1234	    if (ri->ri_nextin->d_flag & TULIP_DFLAG_TxSETUPPKT) {
1235		/*
1236		 * We've just finished processing a setup packet.
1237		 * Mark that we can finished it.  If there's not
1238		 * another pending, startup the TULIP receiver.
1239		 * Make sure we ack the RXSTOPPED so we won't get
1240		 * an abormal interrupt indication.
1241		 */
1242		sc->tulip_flags &= ~TULIP_DOINGSETUP;
1243		if ((sc->tulip_flags & TULIP_WANTSETUP) == 0) {
1244		    tulip_rx_intr(sc);
1245		    sc->tulip_cmdmode |= TULIP_CMD_RXRUN;
1246		    sc->tulip_intrmask |= TULIP_STS_RXSTOPPED;
1247		    TULIP_WRITE_CSR(sc, csr_status, TULIP_STS_RXSTOPPED);
1248		    TULIP_WRITE_CSR(sc, csr_command, sc->tulip_cmdmode);
1249		    TULIP_WRITE_CSR(sc, csr_intr, sc->tulip_intrmask);
1250		}
1251	   } else {
1252		IF_DEQUEUE(&sc->tulip_txq, m);
1253		m_freem(m);
1254		xmits++;
1255		if (sc->tulip_flags & TULIP_TXPROBE_ACTIVE) {
1256		    if ((ri->ri_nextin->d_status & (TULIP_DSTS_TxNOCARR|TULIP_DSTS_TxEXCCOLL)) == 0)
1257			sc->tulip_flags |= TULIP_TXPROBE_OK;
1258		    (*sc->tulip_boardsw->bd_media_select)(sc);
1259		} else {
1260		    sc->tulip_if.if_collisions +=
1261			(ri->ri_nextin->d_status & TULIP_DSTS_TxCOLLMASK)
1262			    >> TULIP_DSTS_V_TxCOLLCNT;
1263		    if (ri->ri_nextin->d_status & TULIP_DSTS_ERRSUM)
1264			sc->tulip_if.if_oerrors++;
1265		}
1266	    }
1267	}
1268
1269	if (++ri->ri_nextin == ri->ri_last)
1270	    ri->ri_nextin = ri->ri_first;
1271	ri->ri_free++;
1272	sc->tulip_if.if_flags &= ~IFF_OACTIVE;
1273    }
1274    sc->tulip_if.if_opackets += xmits;
1275    return xmits;
1276}
1277
1278static ifnet_ret_t
1279tulip_start(
1280    struct ifnet * const ifp)
1281{
1282    tulip_softc_t * const sc = TULIP_IFP_TO_SOFTC(ifp);
1283    struct ifqueue * const ifq = &ifp->if_snd;
1284    tulip_ringinfo_t * const ri = &sc->tulip_txinfo;
1285    struct mbuf *m, *m0, *next_m0;
1286
1287    if ((ifp->if_flags & IFF_RUNNING) == 0
1288	    && (sc->tulip_flags & TULIP_TXPROBE_ACTIVE) == 0)
1289	return;
1290
1291    for (;;) {
1292	tulip_desc_t *eop, *nextout;
1293	int segcnt, free, recopy;
1294	tulip_uint32_t d_status;
1295
1296	if (sc->tulip_flags & TULIP_WANTSETUP) {
1297	    if ((sc->tulip_flags & TULIP_DOINGSETUP) || ri->ri_free == 1) {
1298		ifp->if_flags |= IFF_OACTIVE;
1299		return;
1300	    }
1301	    bcopy(sc->tulip_setupdata, sc->tulip_setupbuf,
1302		   sizeof(sc->tulip_setupbuf));
1303	    sc->tulip_flags &= ~TULIP_WANTSETUP;
1304	    sc->tulip_flags |= TULIP_DOINGSETUP;
1305	    ri->ri_free--;
1306	    ri->ri_nextout->d_flag &= TULIP_DFLAG_ENDRING|TULIP_DFLAG_CHAIN;
1307	    ri->ri_nextout->d_flag |= TULIP_DFLAG_TxFIRSTSEG|TULIP_DFLAG_TxLASTSEG
1308		    |TULIP_DFLAG_TxSETUPPKT|TULIP_DFLAG_TxWANTINTR;
1309	    if (sc->tulip_flags & TULIP_WANTHASH)
1310		ri->ri_nextout->d_flag |= TULIP_DFLAG_TxHASHFILT;
1311	    ri->ri_nextout->d_length1 = sizeof(sc->tulip_setupbuf);
1312	    ri->ri_nextout->d_addr1 = vtophys(sc->tulip_setupbuf);
1313	    ri->ri_nextout->d_length2 = 0;
1314	    ri->ri_nextout->d_addr2 = 0;
1315	    ri->ri_nextout->d_status = TULIP_DSTS_OWNER;
1316	    TULIP_WRITE_CSR(sc, csr_txpoll, 1);
1317	    /*
1318	     * Advance the ring for the next transmit packet.
1319	     */
1320	    if (++ri->ri_nextout == ri->ri_last)
1321		ri->ri_nextout = ri->ri_first;
1322	    /*
1323	     * Make sure the next descriptor is owned by us since it
1324	     * may have been set up above if we ran out of room in the
1325	     * ring.
1326	     */
1327	    ri->ri_nextout->d_status = 0;
1328	}
1329
1330	IF_DEQUEUE(ifq, m);
1331	if (m == NULL)
1332	    break;
1333
1334	/*
1335	 * Now we try to fill in our transmit descriptors.  This is
1336	 * a bit reminiscent of going on the Ark two by two
1337	 * since each descriptor for the TULIP can describe
1338	 * two buffers.  So we advance through packet filling
1339	 * each of the two entries at a time to to fill each
1340	 * descriptor.  Clear the first and last segment bits
1341	 * in each descriptor (actually just clear everything
1342	 * but the end-of-ring or chain bits) to make sure
1343	 * we don't get messed up by previously sent packets.
1344	 *
1345	 * We may fail to put the entire packet on the ring if
1346	 * there is either not enough ring entries free or if the
1347	 * packet has more than MAX_TXSEG segments.  In the former
1348	 * case we will just wait for the ring to empty.  In the
1349	 * latter case we have to recopy.
1350	 */
1351	d_status = 0;
1352	recopy = 0;
1353	eop = nextout = ri->ri_nextout;
1354	m0 = m;
1355	segcnt = 0;
1356	free = ri->ri_free;
1357	do {
1358	    int len = m0->m_len;
1359	    caddr_t addr = mtod(m0, caddr_t);
1360	    unsigned clsize = CLBYTES - (((u_long) addr) & (CLBYTES-1));
1361
1362	    next_m0 = m0->m_next;
1363	    while (len > 0) {
1364		unsigned slen = min(len, clsize);
1365
1366		segcnt++;
1367		if (segcnt > TULIP_MAX_TXSEG) {
1368		    recopy = 1;
1369		    next_m0 = NULL; /* to break out of outside loop */
1370		    break;
1371		}
1372		if (segcnt & 1) {
1373		    if (--free == 0) {
1374			/*
1375			 * There's no more room but since nothing
1376			 * has been committed at this point, just
1377			 * show output is active, put back the
1378			 * mbuf and return.
1379			 */
1380			ifp->if_flags |= IFF_OACTIVE;
1381			IF_PREPEND(ifq, m);
1382			return;
1383		    }
1384		    eop = nextout;
1385		    if (++nextout == ri->ri_last)
1386			nextout = ri->ri_first;
1387		    eop->d_flag &= TULIP_DFLAG_ENDRING|TULIP_DFLAG_CHAIN;
1388		    eop->d_status = d_status;
1389		    eop->d_addr1 = vtophys(addr); eop->d_length1 = slen;
1390		} else {
1391		    /*
1392		     *  Fill in second half of descriptor
1393		     */
1394		    eop->d_addr2 = vtophys(addr); eop->d_length2 = slen;
1395		}
1396		d_status = TULIP_DSTS_OWNER;
1397		len -= slen;
1398		addr += slen;
1399		clsize = CLBYTES;
1400	    }
1401	} while ((m0 = next_m0) != NULL);
1402
1403	/*
1404	 * The packet exceeds the number of transmit buffer
1405	 * entries that we can use for one packet, so we have
1406	 * recopy it into one mbuf and then try again.
1407	 */
1408	if (recopy) {
1409	    MGETHDR(m0, M_DONTWAIT, MT_DATA);
1410	    if (m0 != NULL) {
1411		if (m->m_pkthdr.len > MHLEN) {
1412		    MCLGET(m0, M_DONTWAIT);
1413		    if ((m0->m_flags & M_EXT) == 0) {
1414			m_freem(m);
1415			m_freem(m0);
1416			continue;
1417		    }
1418		}
1419		m_copydata(m, 0, m->m_pkthdr.len, mtod(m0, caddr_t));
1420		m0->m_pkthdr.len = m0->m_len = m->m_pkthdr.len;
1421		IF_PREPEND(ifq, m0);
1422	    }
1423	    m_freem(m);
1424	    continue;
1425	}
1426
1427	/*
1428	 * The descriptors have been filled in.  Now get ready
1429	 * to transmit.
1430	 */
1431#if NBPFILTER > 0
1432	if (sc->tulip_bpf != NULL)
1433	    bpf_mtap(sc->tulip_bpf, m);
1434#endif
1435	IF_ENQUEUE(&sc->tulip_txq, m);
1436
1437	/*
1438	 * Make sure the next descriptor after this packet is owned
1439	 * by us since it may have been set up above if we ran out
1440	 * of room in the ring.
1441	 */
1442	nextout->d_status = 0;
1443
1444	/*
1445	 * If we only used the first segment of the last descriptor,
1446	 * make sure the second segment will not be used.
1447	 */
1448	if (segcnt & 1) {
1449	    eop->d_addr2 = 0;
1450	    eop->d_length2 = 0;
1451	}
1452
1453	/*
1454	 * Mark the last and first segments, indicate we want a transmit
1455	 * complete interrupt, give the descriptors to the TULIP, and tell
1456	 * it to transmit!
1457	 */
1458	eop->d_flag |= TULIP_DFLAG_TxLASTSEG|TULIP_DFLAG_TxWANTINTR;
1459
1460	/*
1461	 * Note that ri->ri_nextout is still the start of the packet
1462	 * and until we set the OWNER bit, we can still back out of
1463	 * everything we have done.
1464	 */
1465	ri->ri_nextout->d_flag |= TULIP_DFLAG_TxFIRSTSEG;
1466	ri->ri_nextout->d_status = TULIP_DSTS_OWNER;
1467
1468	/*
1469	 * This advances the ring for us.
1470	 */
1471	ri->ri_nextout = nextout;
1472	ri->ri_free = free;
1473
1474	TULIP_WRITE_CSR(sc, csr_txpoll, 1);
1475    }
1476    if (m != NULL) {
1477	ifp->if_flags |= IFF_OACTIVE;
1478	IF_PREPEND(ifq, m);
1479    }
1480}
1481
1482static int
1483tulip_intr(
1484    void *arg)
1485{
1486    tulip_softc_t * sc = (tulip_softc_t *) arg;
1487    tulip_uint32_t csr;
1488#if defined(__bsdi__)
1489    int progress = 1;
1490#else
1491    int progress = 0;
1492#endif
1493
1494    do {
1495	while ((csr = TULIP_READ_CSR(sc, csr_status)) & (TULIP_STS_NORMALINTR|TULIP_STS_ABNRMLINTR)) {
1496	    progress = 1;
1497	    TULIP_WRITE_CSR(sc, csr_status, csr & sc->tulip_intrmask);
1498
1499	    if (csr & TULIP_STS_SYSERROR) {
1500		if ((csr & TULIP_STS_ERRORMASK) == TULIP_STS_ERR_PARITY) {
1501		    tulip_reset(sc);
1502		    tulip_init(sc);
1503		    break;
1504		}
1505	    }
1506	    if (csr & (TULIP_STS_GPTIMEOUT|TULIP_STS_LINKPASS|TULIP_STS_LINKFAIL)) {
1507		if (sc->tulip_chipid == TULIP_DC21041) {
1508		    (*sc->tulip_boardsw->bd_media_select)(sc);
1509		    if (csr & (TULIP_STS_LINKPASS|TULIP_STS_LINKFAIL))
1510			csr &= ~TULIP_STS_ABNRMLINTR;
1511		}
1512	    }
1513	    if (csr & TULIP_STS_ABNRMLINTR) {
1514		printf("%s: abnormal interrupt: 0x%05x [0x%05x]\n",
1515		       sc->tulip_xname, csr, csr & sc->tulip_intrmask);
1516		TULIP_WRITE_CSR(sc, csr_command, sc->tulip_cmdmode);
1517	    }
1518	    if (csr & TULIP_STS_RXINTR)
1519		tulip_rx_intr(sc);
1520	    if (sc->tulip_txinfo.ri_free < sc->tulip_txinfo.ri_max) {
1521		tulip_tx_intr(sc);
1522		tulip_start(&sc->tulip_if);
1523	    }
1524	}
1525    } while ((sc = sc->tulip_slaves) != NULL);
1526    return progress;
1527}
1528
1529/*
1530 *
1531 */
1532
1533static void
1534tulip_delay_300ns(
1535    tulip_softc_t * const sc)
1536{
1537    TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode);
1538    TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode);
1539
1540    TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode);
1541    TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode);
1542
1543    TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode);
1544    TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode);
1545}
1546
1547#define EMIT    do { TULIP_WRITE_CSR(sc, csr_srom_mii, csr); tulip_delay_300ns(sc); } while (0)
1548
1549static void
1550tulip_idle_srom(
1551    tulip_softc_t * const sc)
1552{
1553    unsigned bit, csr;
1554
1555    csr  = SROMSEL | SROMRD; EMIT;
1556    csr ^= SROMCS; EMIT;
1557    csr ^= SROMCLKON; EMIT;
1558
1559    /*
1560     * Write 25 cycles of 0 which will force the SROM to be idle.
1561     */
1562    for (bit = 3 + SROM_BITWIDTH + 16; bit > 0; bit--) {
1563        csr ^= SROMCLKOFF; EMIT;    /* clock low; data not valid */
1564        csr ^= SROMCLKON; EMIT;     /* clock high; data valid */
1565    }
1566    csr ^= SROMCLKOFF; EMIT;
1567    csr ^= SROMCS; EMIT; EMIT;
1568    csr  = 0; EMIT;
1569}
1570
1571
1572static void
1573tulip_read_srom(
1574    tulip_softc_t * const sc)
1575{
1576    int idx;
1577    const unsigned bitwidth = SROM_BITWIDTH;
1578    const unsigned cmdmask = (SROMCMD_RD << bitwidth);
1579    const unsigned msb = 1 << (bitwidth + 3 - 1);
1580    unsigned lastidx = (1 << bitwidth) - 1;
1581
1582    tulip_idle_srom(sc);
1583
1584    for (idx = 0; idx <= lastidx; idx++) {
1585        unsigned lastbit, data, bits, bit, csr;
1586        csr  = SROMSEL | SROMRD;        EMIT;
1587        csr ^= SROMCSON;                EMIT;
1588        csr ^=            SROMCLKON;    EMIT;
1589
1590        lastbit = 0;
1591        for (bits = idx|cmdmask, bit = bitwidth + 3; bit > 0; bit--, bits <<= 1) {
1592            const unsigned thisbit = bits & msb;
1593            csr ^= SROMCLKOFF; EMIT;    /* clock low; data not valid */
1594            if (thisbit != lastbit) {
1595                csr ^= SROMDOUT; EMIT;  /* clock low; invert data */
1596            }
1597            csr ^= SROMCLKON; EMIT;     /* clock high; data valid */
1598            lastbit = thisbit;
1599        }
1600        csr ^= SROMCLKOFF; EMIT;
1601
1602        for (data = 0, bits = 0; bits < 16; bits++) {
1603            data <<= 1;
1604            csr ^= SROMCLKON; EMIT;     /* clock high; data valid */
1605            data |= TULIP_READ_CSR(sc, csr_srom_mii) & SROMDIN ? 1 : 0;
1606            csr ^= SROMCLKOFF; EMIT;    /* clock low; data not valid */
1607        }
1608	sc->tulip_rombuf[idx*2] = data & 0xFF;
1609	sc->tulip_rombuf[idx*2+1] = data >> 8;
1610        csr  = SROMSEL | SROMRD; EMIT;
1611        csr  = 0; EMIT;
1612    }
1613}
1614
1615#define	tulip_mchash(mca)	(tulip_crc32(mca, 6) & 0x1FF)
1616#define	tulip_srom_crcok(databuf)	( \
1617    ((tulip_crc32(databuf, 126) & 0xFFFF) ^ 0xFFFF)== \
1618     ((databuf)[126] | ((databuf)[127] << 8)))
1619
1620static unsigned
1621tulip_crc32(
1622    const unsigned char *databuf,
1623    size_t datalen)
1624{
1625    u_int idx, bit, data, crc = 0xFFFFFFFFUL;
1626
1627    for (idx = 0; idx < datalen; idx++)
1628        for (data = *databuf++, bit = 0; bit < 8; bit++, data >>= 1)
1629            crc = (crc >> 1) ^ (((crc ^ data) & 1) ? TULIP_CRC32_POLY : 0);
1630    return crc;
1631}
1632
1633
1634/*
1635 * This deals with the vagaries of the address roms and the
1636 * brain-deadness that various vendors commit in using them.
1637 */
1638static int
1639tulip_read_macaddr(
1640    tulip_softc_t *sc)
1641{
1642    int cksum, rom_cksum, idx;
1643    tulip_uint32_t csr;
1644    unsigned char tmpbuf[8];
1645    static const u_char testpat[] = { 0xFF, 0, 0x55, 0xAA, 0xFF, 0, 0x55, 0xAA };
1646
1647    if (sc->tulip_chipid == TULIP_DC21040) {
1648	TULIP_WRITE_CSR(sc, csr_enetrom, 1);
1649	for (idx = 0; idx < 32; idx++) {
1650	    int cnt = 0;
1651	    while (((csr = TULIP_READ_CSR(sc, csr_enetrom)) & 0x80000000L) && cnt < 10000)
1652		cnt++;
1653	    sc->tulip_rombuf[idx] = csr & 0xFF;
1654	}
1655	sc->tulip_boardsw = &tulip_dc21040_boardsw;
1656#if defined(TULIP_EISA)
1657    } else if (sc->tulip_chipid == TULIP_DE425) {
1658	int cnt;
1659	for (idx = 0, cnt = 0; idx < sizeof(testpat) && cnt < 32; cnt++) {
1660	    tmpbuf[idx] = TULIP_READ_CSRBYTE(sc, csr_enetrom);
1661	    if (tmpbuf[idx] == testpat[idx])
1662		++idx;
1663	    else
1664		idx = 0;
1665	}
1666	for (idx = 0; idx < 32; idx++)
1667	    sc->tulip_rombuf[idx] = TULIP_READ_CSRBYTE(sc, csr_enetrom);
1668	sc->tulip_boardsw = &tulip_dc21040_boardsw;
1669#endif /* TULIP_EISA */
1670    } else {
1671	int new_srom_fmt = 0;
1672	/*
1673	 * Assume all DC21140 board are compatible with the
1674	 * DEC 10/100 evaluation board.  Not really valid but
1675	 * it's the best we can do until every one switches to
1676	 * the new SROM format.
1677	 */
1678	if (sc->tulip_chipid == TULIP_DC21140)
1679	    sc->tulip_boardsw = &tulip_dc21140_eb_boardsw;
1680	/*
1681	 * Thankfully all DC21041's act the same.
1682	 */
1683	if (sc->tulip_chipid == TULIP_DC21041)
1684	    sc->tulip_boardsw = &tulip_dc21041_boardsw;
1685	tulip_read_srom(sc);
1686	if (tulip_srom_crcok(sc->tulip_rombuf)) {
1687	    /*
1688	     * SROM CRC is valid therefore it must be in the
1689	     * new format.
1690	     */
1691	    new_srom_fmt = 1;
1692	} else if (sc->tulip_rombuf[126] == 0xff && sc->tulip_rombuf[127] == 0xFF) {
1693	    /*
1694	     * No checksum is present.  See if the SROM id checks out;
1695	     * the first 18 bytes should be 0 followed by a 1 followed
1696	     * by the number of adapters (which we don't deal with yet).
1697	     */
1698	    for (idx = 0; idx < 18; idx++) {
1699		if (sc->tulip_rombuf[idx] != 0)
1700		    break;
1701	    }
1702	    if (idx == 18 && sc->tulip_rombuf[18] == 1 && sc->tulip_rombuf[19] != 0)
1703		new_srom_fmt = 2;
1704	}
1705	if (new_srom_fmt) {
1706	    /*
1707	     * New SROM format.  Copy out the Ethernet address.
1708	     * If it contains a DE500-XA string, then it must be
1709	     * a DE500-XA.
1710	     */
1711	    bcopy(sc->tulip_rombuf + 20, sc->tulip_hwaddr, 6);
1712	    if (bcmp(sc->tulip_rombuf + 29, "DE500-XA", 8) == 0)
1713		sc->tulip_boardsw = &tulip_dc21140_de500_boardsw;
1714	    if (bcmp(sc->tulip_rombuf + 29, "DE450", 5) == 0)
1715		sc->tulip_boardsw = &tulip_dc21041_de450_boardsw;
1716	    if (sc->tulip_boardsw == NULL)
1717		return -6;
1718	    sc->tulip_flags |= TULIP_ROMOK;
1719	    return 0;
1720	}
1721    }
1722
1723
1724    if (bcmp(&sc->tulip_rombuf[0], &sc->tulip_rombuf[16], 8) != 0) {
1725	/*
1726	 * Some folks don't use the standard ethernet rom format
1727	 * but instead just put the address in the first 6 bytes
1728	 * of the rom and let the rest be all 0xffs.  (Can we say
1729	 * ZNYX???) (well sometimes they put in a checksum so we'll
1730	 * start at 8).
1731	 */
1732	for (idx = 8; idx < 32; idx++) {
1733	    if (sc->tulip_rombuf[idx] != 0xFF)
1734		return -4;
1735	}
1736	/*
1737	 * Make sure the address is not multicast or locally assigned
1738	 * that the OUI is not 00-00-00.
1739	 */
1740	if ((sc->tulip_rombuf[0] & 3) != 0)
1741	    return -4;
1742	if (sc->tulip_rombuf[0] == 0 && sc->tulip_rombuf[1] == 0
1743		&& sc->tulip_rombuf[2] == 0)
1744	    return -4;
1745	bcopy(sc->tulip_rombuf, sc->tulip_hwaddr, 6);
1746	sc->tulip_flags |= TULIP_ROMOK;
1747	if (sc->tulip_hwaddr[0] == TULIP_OUI_ZNYX_0
1748		&& sc->tulip_hwaddr[1] == TULIP_OUI_ZNYX_1
1749		&& sc->tulip_hwaddr[2] == TULIP_OUI_ZNYX_2
1750	        && (sc->tulip_hwaddr[3] & ~3) == 0xF0) {
1751	    /*
1752	     * Now if the OUI is ZNYX and hwaddr[3] == 0xF0 .. 0xF3
1753	     * then it's a ZX314 Master port.
1754	     */
1755	    sc->tulip_boardsw = &tulip_dc21040_zx314_master_boardsw;
1756	}
1757	return 0;
1758    } else {
1759	/*
1760	 * A number of makers of multiport boards (ZNYX and Cogent)
1761	 * only put on one address ROM on their DC21040 boards.  So
1762	 * if the ROM is all zeros and this is a DC21040, look at the
1763	 * previous configured boards (as long as they are on the same
1764	 * PCI bus and the bus number is non-zero) until we find the
1765	 * master board with address ROM.  We then use its address ROM
1766	 * as the base for this board.  (we add our relative board
1767	 * to the last byte of its address).
1768	 */
1769	if (sc->tulip_chipid == TULIP_DC21040 /* && sc->tulip_bus != 0 XXX */) {
1770	    for (idx = 0; idx < 32; idx++) {
1771		if (sc->tulip_rombuf[idx] != 0)
1772		    break;
1773	    }
1774	    if (idx == 32) {
1775		int root_unit;
1776		tulip_softc_t *root_sc = NULL;
1777		for (root_unit = sc->tulip_unit - 1; root_unit >= 0; root_unit--) {
1778		    root_sc = TULIP_UNIT_TO_SOFTC(root_unit);
1779		    if (root_sc == NULL || (root_sc->tulip_flags & (TULIP_ROMOK|TULIP_SLAVEDROM)) == TULIP_ROMOK)
1780			break;
1781		    root_sc = NULL;
1782		}
1783		if (root_sc != NULL
1784			/* && root_sc->tulip_bus == sc->tulip_bus XXX */) {
1785		    bcopy(root_sc->tulip_hwaddr, sc->tulip_hwaddr, 6);
1786		    sc->tulip_hwaddr[5] += sc->tulip_unit - root_sc->tulip_unit;
1787		    sc->tulip_flags |= TULIP_SLAVEDROM;
1788		    if (root_sc->tulip_boardsw->bd_type == TULIP_DC21040_ZX314_MASTER) {
1789			sc->tulip_boardsw = &tulip_dc21040_zx314_slave_boardsw;
1790			/*
1791			 * Now for a truly disgusting kludge: all 4 DC21040s on
1792			 * the ZX314 share the same INTA line so the mapping
1793			 * setup by the BIOS on the PCI bridge is worthless.
1794			 * Rather than reprogramming the value in the config
1795			 * register, we will handle this internally.
1796			 */
1797			sc->tulip_slaves = root_sc->tulip_slaves;
1798			root_sc->tulip_slaves = sc;
1799		    }
1800		    return 0;
1801		}
1802	    }
1803	}
1804    }
1805
1806    /*
1807     * This is the standard DEC address ROM test.
1808     */
1809
1810    if (bcmp(&sc->tulip_rombuf[24], testpat, 8) != 0)
1811	return -3;
1812
1813    tmpbuf[0] = sc->tulip_rombuf[15]; tmpbuf[1] = sc->tulip_rombuf[14];
1814    tmpbuf[2] = sc->tulip_rombuf[13]; tmpbuf[3] = sc->tulip_rombuf[12];
1815    tmpbuf[4] = sc->tulip_rombuf[11]; tmpbuf[5] = sc->tulip_rombuf[10];
1816    tmpbuf[6] = sc->tulip_rombuf[9];  tmpbuf[7] = sc->tulip_rombuf[8];
1817    if (bcmp(&sc->tulip_rombuf[0], tmpbuf, 8) != 0)
1818	return -2;
1819
1820    bcopy(sc->tulip_rombuf, sc->tulip_hwaddr, 6);
1821
1822    cksum = *(u_short *) &sc->tulip_hwaddr[0];
1823    cksum *= 2;
1824    if (cksum > 65535) cksum -= 65535;
1825    cksum += *(u_short *) &sc->tulip_hwaddr[2];
1826    if (cksum > 65535) cksum -= 65535;
1827    cksum *= 2;
1828    if (cksum > 65535) cksum -= 65535;
1829    cksum += *(u_short *) &sc->tulip_hwaddr[4];
1830    if (cksum >= 65535) cksum -= 65535;
1831
1832    rom_cksum = *(u_short *) &sc->tulip_rombuf[6];
1833
1834    if (cksum != rom_cksum)
1835	return -1;
1836
1837    /*
1838     * Check for various boards based on OUI.  Did I say braindead?
1839     */
1840
1841    if (sc->tulip_chipid == TULIP_DC21140) {
1842	if (sc->tulip_hwaddr[0] == TULIP_OUI_COGENT_0
1843		&& sc->tulip_hwaddr[1] == TULIP_OUI_COGENT_1
1844		&& sc->tulip_hwaddr[2] == TULIP_OUI_COGENT_2) {
1845	    if (sc->tulip_rombuf[32] == TULIP_COGENT_EM100_ID)
1846		sc->tulip_boardsw = &tulip_dc21140_cogent_em100_boardsw;
1847	}
1848	if (sc->tulip_hwaddr[0] == TULIP_OUI_ZNYX_0
1849		&& sc->tulip_hwaddr[1] == TULIP_OUI_ZNYX_1
1850		&& sc->tulip_hwaddr[2] == TULIP_OUI_ZNYX_2) {
1851	    /* this at least works for the zx342 from Znyx */
1852	    sc->tulip_boardsw = &tulip_dc21140_znyx_zx34x_boardsw;
1853	}
1854    }
1855
1856    sc->tulip_flags |= TULIP_ROMOK;
1857    return 0;
1858}
1859
1860static void
1861tulip_addr_filter(
1862    tulip_softc_t * const sc)
1863{
1864    tulip_uint32_t *sp = sc->tulip_setupdata;
1865    struct ether_multistep step;
1866    struct ether_multi *enm;
1867    int i;
1868
1869    sc->tulip_flags &= ~TULIP_WANTHASH;
1870    sc->tulip_flags |= TULIP_WANTSETUP;
1871    sc->tulip_cmdmode &= ~TULIP_CMD_RXRUN;
1872    sc->tulip_intrmask &= ~TULIP_STS_RXSTOPPED;
1873    if (sc->tulip_ac.ac_multicnt > 14) {
1874	unsigned hash;
1875	/*
1876	 * If we have more than 14 multicasts, we have
1877	 * go into hash perfect mode (512 bit multicast
1878	 * hash and one perfect hardware).
1879	 */
1880
1881	bzero(sc->tulip_setupdata, sizeof(sc->tulip_setupdata));
1882	hash = tulip_mchash(etherbroadcastaddr);
1883	sp[hash >> 4] |= 1 << (hash & 0xF);
1884	ETHER_FIRST_MULTI(step, &sc->tulip_ac, enm);
1885	while (enm != NULL) {
1886	    hash = tulip_mchash(enm->enm_addrlo);
1887	    sp[hash >> 4] |= 1 << (hash & 0xF);
1888	    ETHER_NEXT_MULTI(step, enm);
1889	}
1890	sc->tulip_flags |= TULIP_WANTHASH;
1891	sp[39] = ((u_short *) sc->tulip_ac.ac_enaddr)[0];
1892	sp[40] = ((u_short *) sc->tulip_ac.ac_enaddr)[1];
1893	sp[41] = ((u_short *) sc->tulip_ac.ac_enaddr)[2];
1894    } else {
1895	/*
1896	 * Else can get perfect filtering for 16 addresses.
1897	 */
1898	i = 0;
1899	ETHER_FIRST_MULTI(step, &sc->tulip_ac, enm);
1900	for (; enm != NULL; i++) {
1901	    *sp++ = ((u_short *) enm->enm_addrlo)[0];
1902	    *sp++ = ((u_short *) enm->enm_addrlo)[1];
1903	    *sp++ = ((u_short *) enm->enm_addrlo)[2];
1904	    ETHER_NEXT_MULTI(step, enm);
1905	}
1906	/*
1907	 * Add the broadcast address.
1908	 */
1909	i++;
1910	*sp++ = 0xFFFF;
1911	*sp++ = 0xFFFF;
1912	*sp++ = 0xFFFF;
1913	/*
1914	 * Pad the rest with our hardware address
1915	 */
1916	for (; i < 16; i++) {
1917	    *sp++ = ((u_short *) sc->tulip_ac.ac_enaddr)[0];
1918	    *sp++ = ((u_short *) sc->tulip_ac.ac_enaddr)[1];
1919	    *sp++ = ((u_short *) sc->tulip_ac.ac_enaddr)[2];
1920	}
1921    }
1922}
1923
1924static int
1925tulip_ioctl(
1926    struct ifnet * const ifp,
1927    ioctl_cmd_t cmd,
1928    caddr_t data)
1929{
1930    tulip_softc_t * const sc = TULIP_IFP_TO_SOFTC(ifp);
1931    struct ifaddr *ifa = (struct ifaddr *)data;
1932    struct ifreq *ifr = (struct ifreq *) data;
1933    int s, error = 0;
1934
1935    s = splnet();
1936
1937    if ((error = ether_ioctl(ifp, &sc->tulip_ac, cmd, data)) > 0) {
1938	splx(s);
1939	return error;
1940    }
1941
1942    switch (cmd) {
1943	case SIOCSIFADDR: {
1944	    ifp->if_flags |= IFF_UP;
1945	    switch(ifa->ifa_addr->sa_family) {
1946#ifdef INET
1947		case AF_INET: {
1948		    tulip_init(sc);
1949		    arp_ifinit(&sc->tulip_ac, ifa);
1950		    break;
1951		}
1952#endif /* INET */
1953
1954		default: {
1955		    tulip_init(sc);
1956		    break;
1957		}
1958	    }
1959	    break;
1960	}
1961	case SIOCGIFADDR: {
1962	    bcopy((caddr_t) sc->tulip_ac.ac_enaddr,
1963		  (caddr_t) ((struct sockaddr *)&ifr->ifr_data)->sa_data,
1964		  6);
1965	    break;
1966	}
1967
1968	case SIOCSIFFLAGS: {
1969	    /*
1970	     * Changing the connection forces a reset.
1971	     */
1972	    if (sc->tulip_flags & TULIP_ALTPHYS) {
1973		if ((ifp->if_flags & IFF_ALTPHYS) == 0)
1974		    tulip_reset(sc);
1975	    } else {
1976		if (ifp->if_flags & IFF_ALTPHYS)
1977		    tulip_reset(sc);
1978	    }
1979	    tulip_init(sc);
1980	    break;
1981	}
1982
1983	case SIOCADDMULTI:
1984	case SIOCDELMULTI: {
1985	    /*
1986	     * Update multicast listeners
1987	     */
1988	    if (cmd == SIOCADDMULTI)
1989		error = ether_addmulti(ifr, &sc->tulip_ac);
1990	    else
1991		error = ether_delmulti(ifr, &sc->tulip_ac);
1992
1993	    if (error == ENETRESET) {
1994		tulip_addr_filter(sc);		/* reset multicast filtering */
1995		tulip_init(sc);
1996		error = 0;
1997	    }
1998	    break;
1999	}
2000#if defined(SIOCSIFMTU)
2001#if !defined(ifr_mtu)
2002#define ifr_mtu ifr_metric
2003#endif
2004	case SIOCSIFMTU:
2005	    /*
2006	     * Set the interface MTU.
2007	     */
2008	    if (ifr->ifr_mtu > ETHERMTU
2009#ifndef BIG_PACKET
2010		    && sc->tulip_chipid != TULIP_DC21140
2011		    && sc->tulip_chipid != TULIP_DC21041
2012#endif
2013		) {
2014		error = EINVAL;
2015		break;
2016	    }
2017	    ifp->if_mtu = ifr->ifr_mtu;
2018#ifdef BIG_PACKET
2019	    tulip_reset(sc);
2020	    tulip_init(sc);
2021#endif
2022	    break;
2023#endif /* SIOCSIFMTU */
2024
2025	default: {
2026	    error = EINVAL;
2027	    break;
2028	}
2029    }
2030
2031    splx(s);
2032    return error;
2033}
2034
2035static void
2036tulip_attach(
2037    tulip_softc_t * const sc)
2038{
2039    struct ifnet * const ifp = &sc->tulip_if;
2040
2041    ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_NOTRAILERS|IFF_MULTICAST;
2042    ifp->if_ioctl = tulip_ioctl;
2043    ifp->if_output = ether_output;
2044    ifp->if_start = tulip_start;
2045
2046#if defined(__FreeBSD__)
2047    printf("%s", sc->tulip_xname);
2048#elif defined(__bsdi__)
2049    printf("\n%s", sc->tulip_xname);
2050#endif
2051#if defined(__NetBSD__)
2052    printf(": %s%s pass %d.%d\n%s: Ethernet address %s\n",
2053#else
2054    printf(": %s%s pass %d.%d Ethernet address %s\n",
2055#endif
2056	   sc->tulip_boardsw->bd_description,
2057	   tulip_chipdescs[sc->tulip_chipid],
2058	   (sc->tulip_revinfo & 0xF0) >> 4,
2059	   sc->tulip_revinfo & 0x0F,
2060#if defined(__NetBSD__)
2061	   sc->tulip_dev.dv_xname,
2062#endif
2063	   ether_sprintf(sc->tulip_hwaddr));
2064
2065    if ((*sc->tulip_boardsw->bd_media_probe)(sc)) {
2066	ifp->if_flags |= IFF_ALTPHYS;
2067    } else {
2068	sc->tulip_flags |= TULIP_ALTPHYS;
2069    }
2070
2071    tulip_reset(sc);
2072
2073    if_attach(ifp);
2074#if defined(__NetBSD__)
2075    ether_ifattach(ifp);
2076#endif
2077
2078#if NBPFILTER > 0
2079    bpfattach(&sc->tulip_bpf, ifp, DLT_EN10MB, sizeof(struct ether_header));
2080#endif
2081}
2082
2083static void
2084tulip_initcsrs(
2085    tulip_softc_t * const sc,
2086    tulip_csrptr_t csr_base,
2087    size_t csr_size)
2088{
2089    sc->tulip_csrs.csr_busmode		= csr_base +  0 * csr_size;
2090    sc->tulip_csrs.csr_txpoll		= csr_base +  1 * csr_size;
2091    sc->tulip_csrs.csr_rxpoll		= csr_base +  2 * csr_size;
2092    sc->tulip_csrs.csr_rxlist		= csr_base +  3 * csr_size;
2093    sc->tulip_csrs.csr_txlist		= csr_base +  4 * csr_size;
2094    sc->tulip_csrs.csr_status		= csr_base +  5 * csr_size;
2095    sc->tulip_csrs.csr_command		= csr_base +  6 * csr_size;
2096    sc->tulip_csrs.csr_intr		= csr_base +  7 * csr_size;
2097    sc->tulip_csrs.csr_missed_frame	= csr_base +  8 * csr_size;
2098    if (sc->tulip_chipid == TULIP_DC21040) {
2099	sc->tulip_csrs.csr_enetrom		= csr_base +  9 * csr_size;
2100	sc->tulip_csrs.csr_reserved		= csr_base + 10 * csr_size;
2101	sc->tulip_csrs.csr_full_duplex		= csr_base + 11 * csr_size;
2102	sc->tulip_csrs.csr_sia_status		= csr_base + 12 * csr_size;
2103	sc->tulip_csrs.csr_sia_connectivity	= csr_base + 13 * csr_size;
2104	sc->tulip_csrs.csr_sia_tx_rx 		= csr_base + 14 * csr_size;
2105	sc->tulip_csrs.csr_sia_general		= csr_base + 15 * csr_size;
2106#if defined(TULIP_EISA)
2107    } else if (sc->tulip_chipid == TULIP_DE425) {
2108	sc->tulip_csrs.csr_enetrom		= csr_base + DE425_ENETROM_OFFSET;
2109	sc->tulip_csrs.csr_reserved		= csr_base + 10 * csr_size;
2110	sc->tulip_csrs.csr_full_duplex		= csr_base + 11 * csr_size;
2111	sc->tulip_csrs.csr_sia_status		= csr_base + 12 * csr_size;
2112	sc->tulip_csrs.csr_sia_connectivity	= csr_base + 13 * csr_size;
2113	sc->tulip_csrs.csr_sia_tx_rx 		= csr_base + 14 * csr_size;
2114	sc->tulip_csrs.csr_sia_general		= csr_base + 15 * csr_size;
2115#endif /* TULIP_EISA */
2116    } else if (sc->tulip_chipid == TULIP_DC21140) {
2117	sc->tulip_csrs.csr_srom_mii		= csr_base +  9 * csr_size;
2118	sc->tulip_csrs.csr_gp_timer		= csr_base + 11 * csr_size;
2119	sc->tulip_csrs.csr_gp			= csr_base + 12 * csr_size;
2120	sc->tulip_csrs.csr_watchdog		= csr_base + 15 * csr_size;
2121    } else if (sc->tulip_chipid == TULIP_DC21041) {
2122	sc->tulip_csrs.csr_srom_mii		= csr_base +  9 * csr_size;
2123	sc->tulip_csrs.csr_bootrom		= csr_base + 10 * csr_size;
2124	sc->tulip_csrs.csr_gp_timer		= csr_base + 11 * csr_size;
2125	sc->tulip_csrs.csr_sia_status		= csr_base + 12 * csr_size;
2126	sc->tulip_csrs.csr_sia_connectivity	= csr_base + 13 * csr_size;
2127	sc->tulip_csrs.csr_sia_tx_rx 		= csr_base + 14 * csr_size;
2128	sc->tulip_csrs.csr_sia_general		= csr_base + 15 * csr_size;
2129    }
2130}
2131
2132static void
2133tulip_initring(
2134    tulip_softc_t * const sc,
2135    tulip_ringinfo_t * const ri,
2136    tulip_desc_t *descs,
2137    int ndescs)
2138{
2139    ri->ri_max = ndescs;
2140    ri->ri_first = descs;
2141    ri->ri_last = ri->ri_first + ri->ri_max;
2142    bzero((caddr_t) ri->ri_first, sizeof(ri->ri_first[0]) * ri->ri_max);
2143    ri->ri_last[-1].d_flag = TULIP_DFLAG_ENDRING;
2144}
2145
2146/*
2147 * This is the PCI configuration support.  Since the DC21040 is available
2148 * on both EISA and PCI boards, one must be careful in how defines the
2149 * DC21040 in the config file.
2150 */
2151
2152#define	PCI_CFID	0x00	/* Configuration ID */
2153#define	PCI_CFCS	0x04	/* Configurtion Command/Status */
2154#define	PCI_CFRV	0x08	/* Configuration Revision */
2155#define	PCI_CFLT	0x0c	/* Configuration Latency Timer */
2156#define	PCI_CBIO	0x10	/* Configuration Base IO Address */
2157#define	PCI_CBMA	0x14	/* Configuration Base Memory Address */
2158#define	PCI_CFIT	0x3c	/* Configuration Interrupt */
2159#define	PCI_CFDA	0x40	/* Configuration Driver Area */
2160
2161#if defined(TULIP_EISA)
2162static const int tulip_eisa_irqs[4] = { IRQ5, IRQ9, IRQ10, IRQ11 };
2163#endif
2164
2165#if defined(__FreeBSD__)
2166
2167#define	TULIP_PCI_ATTACH_ARGS	pcici_t config_id, int unit
2168
2169static int
2170tulip_pci_shutdown(
2171    struct kern_devconf * const kdc,
2172    int force)
2173{
2174    if (kdc->kdc_unit < NDE) {
2175	tulip_softc_t * const sc = TULIP_UNIT_TO_SOFTC(kdc->kdc_unit);
2176	TULIP_WRITE_CSR(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
2177	DELAY(10);	/* Wait 10 microseconds (actually 50 PCI cycles but at
2178			   33MHz that comes to two microseconds but wait a
2179			   bit longer anyways) */
2180    }
2181    (void) dev_detach(kdc);
2182    return 0;
2183}
2184
2185static char*
2186tulip_pci_probe(
2187    pcici_t config_id,
2188    pcidi_t device_id)
2189{
2190    if (PCI_VENDORID(device_id) != DEC_VENDORID)
2191	return NULL;
2192    if (PCI_CHIPID(device_id) == DC21040_CHIPID)
2193	return "Digital DC21040 Ethernet";
2194    if (PCI_CHIPID(device_id) == DC21041_CHIPID)
2195	return "Digital DC21041 Ethernet";
2196    if (PCI_CHIPID(device_id) == DC21140_CHIPID)
2197	return "Digital DC21140 Fast Ethernet";
2198    return NULL;
2199}
2200
2201static void  tulip_pci_attach(TULIP_PCI_ATTACH_ARGS);
2202static u_long tulip_pci_count;
2203
2204struct pci_device dedevice = {
2205    "de",
2206    tulip_pci_probe,
2207    tulip_pci_attach,
2208   &tulip_pci_count,
2209    tulip_pci_shutdown,
2210};
2211
2212DATA_SET (pcidevice_set, dedevice);
2213#endif /* __FreeBSD__ */
2214
2215#if defined(__bsdi__)
2216#define	TULIP_PCI_ATTACH_ARGS	struct device * const parent, struct device * const self, void * const aux
2217
2218static void
2219tulip_shutdown(
2220    void *arg)
2221{
2222    tulip_softc_t * const sc = (tulip_softc_t *) arg;
2223    TULIP_WRITE_CSR(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
2224    DELAY(10);	/* Wait 10 microseconds (actually 50 PCI cycles but at
2225			   33MHz that comes to two microseconds but wait a
2226			   bit longer anyways) */
2227}
2228
2229static int
2230tulip_pci_match(
2231    pci_devaddr_t *pa)
2232{
2233    int irq;
2234    unsigned id;
2235
2236    id = pci_inl(pa, PCI_VENDOR_ID);
2237    if (PCI_VENDORID(id) != DEC_VENDORID)
2238	return 0;
2239    id = PCI_CHIPID(id);
2240    if (id != DC21040_CHIPID && id != DC21041_CHIPID && id != DC21140_CHIPID)
2241	return 0;
2242    irq = pci_inl(pa, PCI_I_LINE) & 0xFF;
2243    if (irq == 0 || irq >= 16) {
2244	printf("de?: invalid IRQ %d; skipping\n", irq);
2245	return 0;
2246    }
2247    return 1;
2248}
2249
2250static int
2251tulip_probe(
2252    struct device *parent,
2253    struct cfdata *cf,
2254    void *aux)
2255{
2256    struct isa_attach_args * const ia = (struct isa_attach_args *) aux;
2257    unsigned irq, slot;
2258    pci_devaddr_t *pa;
2259
2260    switch (ia->ia_bustype) {
2261    case BUS_PCI:
2262	pa = pci_scan(tulip_pci_match);
2263	if (pa == NULL)
2264	    return 0;
2265
2266	irq = (1 << (pci_inl(pa, PCI_I_LINE) & 0xFF));
2267
2268	/* Get the base address; assume the BIOS set it up correctly */
2269#if defined(TULIP_IOMAPPED)
2270	ia->ia_maddr = NULL;
2271	ia->ia_msize = 0;
2272	ia->ia_iobase = pci_inl(pa, PCI_CBIO) & ~7;
2273	pci_outl(pa, PCI_CBIO, 0xFFFFFFFF);
2274	ia->ia_iosize = ((~pci_inl(pa, PCI_CBIO)) | 7) + 1;
2275	pci_outl(pa, PCI_CBIO, (int) ia->ia_iobase);
2276
2277	/* Disable memory space access */
2278	pci_outl(pa, PCI_COMMAND, pci_inl(pa, PCI_COMMAND) & ~2);
2279#else
2280	ia->ia_maddr = (caddr_t) (pci_inl(pa, PCI_CBMA) & ~7);
2281	pci_outl(pa, PCI_CBMA, 0xFFFFFFFF);
2282	ia->ia_msize = ((~pci_inl(pa, PCI_CBMA)) | 7) + 1;
2283	pci_outl(pa, PCI_CBMA, (int) ia->ia_maddr);
2284	ia->ia_iobase = 0;
2285	ia->ia_iosize = 0;
2286
2287	/* Disable I/O space access */
2288	pci_outl(pa, PCI_COMMAND, pci_inl(pa, PCI_COMMAND) & ~1);
2289#endif /* TULIP_IOMAPPED */
2290
2291	ia->ia_aux = (void *) pa;
2292	break;
2293
2294#if defined(TULIP_EISA)
2295    case BUS_EISA: {
2296	unsigned tmp;
2297
2298	if ((slot = eisa_match(cf, ia)) == 0)
2299	    return 0;
2300	ia->ia_iobase = slot << 12;
2301	ia->ia_iosize = EISA_NPORT;
2302	eisa_slotalloc(slot);
2303	tmp = inb(ia->ia_iobase + DE425_CFG0);
2304	irq = tulip_eisa_irqs[(tmp >> 1) & 0x03];
2305	/*
2306	 * Until BSD/OS likes level interrupts, force
2307	 * the DE425 into edge-triggered mode.
2308	 */
2309	if ((tmp & 1) == 0)
2310	    outb(ia->ia_iobase + DE425_CFG0, tmp | 1);
2311	/*
2312	 * CBIO needs to map to the EISA slot
2313	 * enable I/O access and Master
2314	 */
2315	outl(ia->ia_iobase + DE425_CBIO, ia->ia_iobase);
2316	outl(ia->ia_iobase + DE425_CFCS, 5 | inl(ia->ia_iobase + DE425_CFCS));
2317	ia->ia_aux = NULL;
2318	break;
2319    }
2320#endif /* TULIP_EISA */
2321
2322    default:
2323	return 0;
2324    }
2325
2326    /* PCI bus masters don't use host DMA channels */
2327    ia->ia_drq = DRQNONE;
2328
2329    if (ia->ia_irq != IRQUNK && irq != ia->ia_irq) {
2330	printf("de%d: error: desired IRQ of %d does not match device's "
2331	    "actual IRQ of %d,\n",
2332	       cf->cf_unit,
2333	       ffs(ia->ia_irq) - 1, ffs(irq) - 1);
2334	return 0;
2335    }
2336    if (ia->ia_irq == IRQUNK)
2337	ia->ia_irq = irq;
2338    ia->ia_irq |= IRQSHARE;
2339    return 1;
2340}
2341
2342static void tulip_pci_attach(TULIP_PCI_ATTACH_ARGS);
2343
2344#if defined(TULIP_EISA)
2345static char *tulip_eisa_ids[] = {
2346    "DEC4250",
2347    NULL
2348};
2349#endif
2350
2351struct cfdriver decd = {
2352    0, "de", tulip_probe, tulip_pci_attach, DV_IFNET, sizeof(tulip_softc_t),
2353#if defined(TULIP_EISA)
2354    tulip_eisa_ids
2355#endif
2356};
2357
2358#endif /* __bsdi__ */
2359
2360#if defined(__NetBSD__)
2361#define	TULIP_PCI_ATTACH_ARGS	struct device * const parent, struct device * const self, void * const aux
2362
2363static void
2364tulip_pci_shutdown(
2365    void *arg)
2366{
2367    tulip_softc_t * const sc = (tulip_softc_t *) arg;
2368    TULIP_WRITE_CSR(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
2369    DELAY(10);	/* Wait 10 microseconds (actually 50 PCI cycles but at
2370			   33MHz that comes to two microseconds but wait a
2371			   bit longer anyways) */
2372}
2373
2374static int
2375tulip_pci_probe(
2376    struct device *parent,
2377    void *match,
2378    void *aux)
2379{
2380    struct pci_attach_args *pa = (struct pci_attach_args *) aux;
2381
2382    if (PCI_VENDORID(pa->pa_id) != DEC_VENDORID)
2383	return 0;
2384    if (PCI_CHIPID(pa->pa_id) == DC21040_CHIPID
2385	    || PCI_CHIPID(pa->pa_id) == DC21041_CHIPID
2386	    || PCI_CHIPID(pa->pa_id) == DC21140_CHIPID)
2387	return 1;
2388
2389    return 0;
2390}
2391
2392static void tulip_pci_attach(TULIP_PCI_ATTACH_ARGS);
2393
2394struct cfattach de_ca = {
2395    sizeof(tulip_softc_t), tulip_pci_probe, tulip_pci_attach
2396};
2397
2398struct cfdriver de_cd = {
2399    0, "de", DV_IFNET
2400};
2401
2402#endif /* __NetBSD__ */
2403
2404static void
2405tulip_pci_attach(
2406    TULIP_PCI_ATTACH_ARGS)
2407{
2408#if defined(__FreeBSD__)
2409    tulip_softc_t *sc;
2410#endif
2411#if defined(__bsdi__)
2412    tulip_softc_t * const sc = (tulip_softc_t *) self;
2413    struct isa_attach_args * const ia = (struct isa_attach_args *) aux;
2414    pci_devaddr_t *pa = (pci_devaddr_t *) ia->ia_aux;
2415    int unit = sc->tulip_dev.dv_unit;
2416#endif
2417#if defined(__NetBSD__)
2418    tulip_softc_t * const sc = (tulip_softc_t *) self;
2419    struct pci_attach_args * const pa = (struct pci_attach_args *) aux;
2420    bus_chipset_tag_t bc = pa->pa_bc;
2421    pci_chipset_tag_t pc = pa->pa_pc;
2422#if defined(TULIP_IOMAPPED)
2423    bus_io_addr_t iobase;
2424    bus_io_size_t iosize;
2425#else
2426    bus_mem_addr_t membase;
2427    bus_mem_size_t memsize;
2428#endif
2429#if defined(__FreeBSD__)
2430    int unit = sc->tulip_dev.dv_unit;
2431#endif
2432    const char *intrstr = NULL;
2433#endif
2434    int retval, idx, revinfo, id;
2435#if !defined(TULIP_IOMAPPED) && !defined(__bsdi__) && !defined(__NetBSD__)
2436    vm_offset_t pa_csrs;
2437#endif
2438    unsigned csrsize = TULIP_PCI_CSRSIZE;
2439    tulip_csrptr_t csr_base;
2440    tulip_desc_t *rxdescs, *txdescs;
2441    tulip_chipid_t chipid = TULIP_CHIPID_UNKNOWN;
2442
2443#if defined(__FreeBSD__)
2444    if (unit >= NDE) {
2445	printf("de%d: not configured; kernel is built for only %d device%s.\n",
2446	       unit, NDE, NDE == 1 ? "" : "s");
2447	return;
2448    }
2449#endif
2450
2451#if defined(__FreeBSD__)
2452    revinfo = pci_conf_read(config_id, PCI_CFRV) & 0xFF;
2453    id = pci_conf_read(config_id, PCI_CFID);
2454#endif
2455#if defined(__bsdi__)
2456    if (pa != NULL) {
2457	revinfo = pci_inl(pa, PCI_CFRV) & 0xFF;
2458	id = pci_inl(pa, PCI_CFID);
2459#if defined(TULIP_EISA)
2460    } else {
2461	revinfo = inl(ia->ia_iobase + DE425_CFRV) & 0xFF;
2462	csrsize = TULIP_EISA_CSRSIZE;
2463	chipid = TULIP_DE425;
2464#endif
2465    }
2466#endif
2467#if defined(__NetBSD__)
2468    revinfo = pci_conf_read(pc, pa->pa_tag, PCI_CFRV) & 0xFF;
2469    id = pa->pa_id;
2470#endif
2471
2472    if (PCI_VENDORID(id) == DEC_VENDORID) {
2473	if (PCI_CHIPID(id) == DC21040_CHIPID) chipid = TULIP_DC21040;
2474	else if (PCI_CHIPID(id) == DC21140_CHIPID) chipid = TULIP_DC21140;
2475	else if (PCI_CHIPID(id) == DC21041_CHIPID) chipid = TULIP_DC21041;
2476    }
2477    if (chipid == TULIP_CHIPID_UNKNOWN)
2478	return;
2479
2480    if ((chipid == TULIP_DC21040 || chipid == TULIP_DE425) && revinfo < 0x20) {
2481#ifdef __FreeBSD__
2482	printf("de%d", unit);
2483#endif
2484	printf(": not configured; DC21040 pass 2.0 required (%d.%d found)\n",
2485	       revinfo >> 4, revinfo & 0x0f);
2486	return;
2487    } else if (chipid == TULIP_DC21140 && revinfo < 0x11) {
2488#ifdef __FreeBSD__
2489	printf("de%d", unit);
2490#endif
2491	printf(": not configured; DC21140 pass 1.1 required (%d.%d found)\n",
2492	       revinfo >> 4, revinfo & 0x0f);
2493	return;
2494    }
2495
2496#if defined(__FreeBSD__)
2497    sc = (tulip_softc_t *) malloc(sizeof(*sc), M_DEVBUF, M_NOWAIT);
2498    if (sc == NULL)
2499	return;
2500    bzero(sc, sizeof(*sc));				/* Zero out the softc*/
2501#endif
2502
2503    rxdescs = (tulip_desc_t *)
2504	malloc(sizeof(tulip_desc_t) * TULIP_RXDESCS, M_DEVBUF, M_NOWAIT);
2505    if (rxdescs == NULL) {
2506#if defined(__FreeBSD__)
2507	free((caddr_t) sc, M_DEVBUF);
2508#endif
2509	return;
2510    }
2511
2512    txdescs = (tulip_desc_t *)
2513	malloc(sizeof(tulip_desc_t) * TULIP_TXDESCS, M_DEVBUF, M_NOWAIT);
2514    if (txdescs == NULL) {
2515	free((caddr_t) rxdescs, M_DEVBUF);
2516#if defined(__FreeBSD__)
2517	free((caddr_t) sc, M_DEVBUF);
2518#endif
2519	return;
2520    }
2521
2522    sc->tulip_chipid = chipid;
2523#if defined(__NetBSD__)
2524    bcopy(self->dv_xname, sc->tulip_if.if_xname, IFNAMSIZ);
2525    sc->tulip_if.if_softc = sc;
2526#else
2527    sc->tulip_unit = unit;
2528    sc->tulip_name = "de";
2529#endif
2530    sc->tulip_revinfo = revinfo;
2531
2532    /* Set up human-readable name. */
2533    bzero(sc->tulip_xname, sizeof(sc->tulip_xname));
2534    sprintf(sc->tulip_xname, "%s%d", sc->tulip_name, sc->tulip_unit);
2535
2536#if defined(__FreeBSD__)
2537#if defined(TULIP_IOMAPPED)
2538    retval = pci_map_port(config_id, PCI_CBIO, &csr_base);
2539#else
2540    retval = pci_map_mem(config_id, PCI_CBMA, (vm_offset_t *) &csr_base, &pa_csrs);
2541#endif
2542    if (!retval) {
2543	free((caddr_t) txdescs, M_DEVBUF);
2544	free((caddr_t) rxdescs, M_DEVBUF);
2545	free((caddr_t) sc, M_DEVBUF);
2546	return;
2547    }
2548    tulips[unit] = sc;
2549#endif /* __FreeBSD__ */
2550
2551#if defined(__bsdi__)
2552#if defined(TULIP_IOMAPPED)
2553    csr_base = ia->ia_iobase;
2554#else
2555    csr_base = (vm_offset_t) mapphys((vm_offset_t) ia->ia_maddr, ia->ia_msize);
2556#endif
2557#endif /* __bsdi__ */
2558
2559#if defined(__NetBSD__)
2560    sc->tulip_bc = bc;
2561    sc->tulip_pc = pc;
2562#if defined(TULIP_IOMAPPED)
2563    retval = pci_io_find(pc, pa->pa_tag, PCI_CBIO, &iobase, &iosize);
2564    if (!retval)
2565	retval = bus_io_map(bc, iobase, iosize, &sc->tulip_ioh);
2566#else
2567    retval = pci_mem_find(pc, pa->pa_tag, PCI_CBMA, &membase, &memsize,
2568	NULL);
2569    if (!retval)
2570	retval = bus_mem_map(bc, membase, memsize, 0, &sc->tulip_memh);
2571#endif
2572    csr_base = 0;
2573    if (retval) {
2574	free((caddr_t) txdescs, M_DEVBUF);
2575	free((caddr_t) rxdescs, M_DEVBUF);
2576	return;
2577    }
2578#endif /* __NetBSD__ */
2579
2580    tulip_initcsrs(sc, csr_base, csrsize);
2581    tulip_initring(sc, &sc->tulip_rxinfo, rxdescs, TULIP_RXDESCS);
2582    tulip_initring(sc, &sc->tulip_txinfo, txdescs, TULIP_TXDESCS);
2583    if ((retval = tulip_read_macaddr(sc)) < 0) {
2584#ifdef __FreeBSD__
2585	printf("%s", sc->tulip_xname);
2586#endif
2587	printf(": can't read ENET ROM (why=%d) (", retval);
2588	for (idx = 0; idx < 32; idx++)
2589	    printf("%02x", sc->tulip_rombuf[idx]);
2590	printf("\n");
2591	printf("%s: %s%s pass %d.%d Ethernet address %s\n",
2592	       sc->tulip_xname,
2593	       (sc->tulip_boardsw != NULL ? sc->tulip_boardsw->bd_description : ""),
2594	       tulip_chipdescs[sc->tulip_chipid],
2595	       (sc->tulip_revinfo & 0xF0) >> 4, sc->tulip_revinfo & 0x0F,
2596	       "unknown");
2597    } else {
2598	/*
2599	 * Make sure there won't be any interrupts or such...
2600	 */
2601	TULIP_WRITE_CSR(sc, csr_busmode, TULIP_BUSMODE_SWRESET);
2602	DELAY(10);	/* Wait 10 microseconds (actually 50 PCI cycles but at
2603			   33MHz that comes to two microseconds but wait a
2604			   bit longer anyways) */
2605#if defined(__NetBSD__)
2606	if (sc->tulip_boardsw->bd_type != TULIP_DC21040_ZX314_SLAVE) {
2607	    pci_intr_handle_t intrhandle;
2608
2609	    if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin,
2610		pa->pa_intrline, &intrhandle)) {
2611		printf(": couldn't map interrupt\n");
2612		return;
2613	    }
2614	    intrstr = pci_intr_string(pc, intrhandle);
2615	    sc->tulip_ih = pci_intr_establish(pc, intrhandle, IPL_NET,
2616		tulip_intr, sc, self->dv_xname);
2617	    if (sc->tulip_ih == NULL) {
2618		printf(": couldn't establish interrupt");
2619                if (intrstr != NULL)
2620                        printf(" at %s", intrstr);
2621                printf("\n");
2622		return;
2623	    }
2624	}
2625	sc->tulip_ats = shutdownhook_establish(tulip_pci_shutdown, sc);
2626	if (sc->tulip_ats == NULL)
2627	    printf("\n%s: warning: couldn't establish shutdown hook",
2628		   sc->tulip_xname);
2629#endif
2630#if defined(__FreeBSD__)
2631	if (sc->tulip_boardsw->bd_type != TULIP_DC21040_ZX314_SLAVE) {
2632	    if (!pci_map_int (config_id, tulip_intr, (void*) sc, &net_imask)) {
2633		printf("%s: couldn't map interrupt\n", sc->tulip_xname);
2634		return;
2635	    }
2636	}
2637#endif
2638#if defined(__bsdi__)
2639	if (sc->tulip_boardsw->bd_type != TULIP_DC21040_ZX314_SLAVE) {
2640	    isa_establish(&sc->tulip_id, &sc->tulip_dev);
2641
2642	    sc->tulip_ih.ih_fun = tulip_intr;
2643	    sc->tulip_ih.ih_arg = (void *)sc;
2644	    intr_establish(ia->ia_irq, &sc->tulip_ih, DV_NET);
2645	}
2646
2647	sc->tulip_ats.func = tulip_shutdown;
2648	sc->tulip_ats.arg = (void *) sc;
2649	atshutdown(&sc->tulip_ats, ATSH_ADD);
2650#endif
2651	tulip_reset(sc);
2652	tulip_attach(sc);
2653#if defined(__NetBSD__)
2654	if (intrstr != NULL)
2655	    printf("%s: interrupting at %s\n", self->dv_xname, intrstr);
2656#endif
2657    }
2658}
2659#endif /* NDE > 0 */
2660