if_de.c revision 4322
1/*-
2 * Copyright (c) 1994 Matt Thomas (thomas@lkg.dec.com)
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. The name of the author may not be used to endorse or promote products
11 *    derived from this software withough specific prior written permission
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 *
24 * $Id: if_de.c,v 1.3 1994/10/12 11:19:35 se Exp $
25 *
26 * $Log: if_de.c,v $
27 * Revision 1.3  1994/10/12  11:19:35  se
28 * Submitted by:	Matt Thomas <thomas@lkg.dec.com>
29 * Preliminary FAST Ethernet support added (DEC21140).
30 *
31 * Revision 1.6  1994/10/11  18:20:10  thomas
32 * new pci interface
33 * new 100mb/s prelim support
34 *
35 * Revision 1.5  1994/10/01  16:10:24  thomas
36 * Modifications for FreeBSD 2.0
37 *
38 * Revision 1.4  1994/09/09  21:10:05  thomas
39 * mbuf debugging code
40 * transmit fifo owkraroudns
41 *
42 * Revision 1.3  1994/08/16  20:40:56  thomas
43 * New README files (one per driver)
44 * Minor updates to drivers (DEPCA support and add pass to attach
45 * output)
46 *
47 * Revision 1.2  1994/08/15  20:41:22  thomas
48 * Support AUI and TP.  Autosense either.
49 * Revamp receive logic to use private kmem_alloc'ed 64K region.
50 * Some cleanup
51 *
52 * Revision 1.1  1994/08/12  21:01:18  thomas
53 * Initial revision
54 *
55 */
56
57/*
58 * DEC DC21040 PCI Ethernet Controller
59 *
60 * Written by Matt Thomas
61 * BPF support code stolen directly from if_ec.c
62 *
63 *   This driver supports the DEC DE435 or any other PCI
64 *   board which support DC21040.
65 */
66
67#include <de.h>
68#if NDE > 0
69
70#include <param.h>
71#include <systm.h>
72#include <mbuf.h>
73#include <protosw.h>
74#include <socket.h>
75#include <ioctl.h>
76#include <errno.h>
77#include <malloc.h>
78#include <syslog.h>
79
80#include <net/if.h>
81#include <net/if_types.h>
82#include <net/if_dl.h>
83#include <net/route.h>
84
85#include <bpfilter.h>
86#if NBPFILTER > 0
87#include <net/bpf.h>
88#include <net/bpfdesc.h>
89#endif
90
91
92#ifdef INET
93#include <netinet/in.h>
94#include <netinet/in_systm.h>
95#include <netinet/in_var.h>
96#include <netinet/ip.h>
97#include <netinet/if_ether.h>
98#endif
99
100#ifdef NS
101#include <netns/ns.h>
102#include <netns/ns_if.h>
103#endif
104
105#include <vm/vm.h>
106#include <vm/vm_kern.h>
107#include <vm/vm_param.h>
108
109
110#include <pci.h>
111#if NPCI > 0
112#include <i386/pci/pcireg.h>
113#endif
114#include <i386/isa/icu.h>
115#include <i386/pci/dc21040.h>
116
117/*
118 * This module supports the DEC DC21040 PCI Ethernet Controller.
119 */
120
121typedef struct {
122    unsigned long addr;
123    unsigned long length;
124} tulip_addrvec_t;
125
126typedef struct {
127    tulip_desc_t *ri_first;
128    tulip_desc_t *ri_last;
129    tulip_desc_t *ri_nextin;
130    tulip_desc_t *ri_nextout;
131    int ri_max;
132    int ri_free;
133} tulip_ringinfo_t;
134
135typedef struct {
136    volatile tulip_uint32_t *csr_busmode;		/* CSR0 */
137    volatile tulip_uint32_t *csr_txpoll;		/* CSR1 */
138    volatile tulip_uint32_t *csr_rxpoll;		/* CSR2 */
139    volatile tulip_uint32_t *csr_rxlist;		/* CSR3 */
140    volatile tulip_uint32_t *csr_txlist;		/* CSR4 */
141    volatile tulip_uint32_t *csr_status;		/* CSR5 */
142    volatile tulip_uint32_t *csr_command;		/* CSR6 */
143    volatile tulip_uint32_t *csr_intr;			/* CSR7 */
144    volatile tulip_uint32_t *csr_missed_frame;		/* CSR8 */
145    volatile tulip_sint32_t *csr_enetrom;		/* CSR9 */
146    volatile tulip_uint32_t *csr_reserved;		/* CSR10 */
147    volatile tulip_uint32_t *csr_full_duplex;		/* CSR11 */
148    volatile tulip_uint32_t *csr_sia_status;		/* CSR12 */
149    volatile tulip_uint32_t *csr_sia_connectivity;	/* CSR13 */
150    volatile tulip_uint32_t *csr_sia_tx_rx;		/* CSR14 */
151    volatile tulip_uint32_t *csr_sia_general;		/* CSR15 */
152} tulip_regfile_t;
153
154/*
155 * The DC21040 has a stupid restriction in that the receive
156 * buffers must be longword aligned.  But since Ethernet
157 * headers are not a multiple of longwords in size this forces
158 * the data to non-longword aligned.  Since IP requires the
159 * data to be longword aligned, we can to copy it after it has
160 * been DMA'ed in our memory.
161 *
162 * Since we have to copy it anyways, we might as well as allocate
163 * dedicated receive space for the input.  This allows to use a
164 * small receive buffer size and more ring entries to be able to
165 * better keep with a foold of tiny Ethernet packets.
166 *
167 * The receive space MUST ALWAYS be a multiple of the page size.
168 * And the number of receive descriptors multiplied by the size
169 * of the receive buffers must equal the recevive space.  This
170 * is that we can manipulate the page tables so that even if a
171 * packet wraps around the end of the receive space, we can
172 * treat it as virtually contiguous.
173 */
174#define	TULIP_RXBUFSIZE		512
175#define	TULIP_RXDESCS		128
176#define	TULIP_RXSPACE		(TULIP_RXBUFSIZE * TULIP_RXDESCS)
177#define	TULIP_TXDESCS		128
178
179typedef struct {
180    struct arpcom tulip_ac;
181    tulip_regfile_t tulip_csrs;
182    vm_offset_t tulip_rxspace;
183    unsigned tulip_flags;
184#define	TULIP_WANTSETUP		0x01
185#define	TULIP_WANTHASH		0x02
186#define	TULIP_DOINGSETUP	0x04
187#define	TULIP_ALTPHYS		0x08	/* use AUI */
188    unsigned char tulip_rombuf[32];
189    tulip_uint32_t tulip_setupbuf[192/sizeof(tulip_uint32_t)];
190    tulip_uint32_t tulip_setupdata[192/sizeof(tulip_uint32_t)];
191    tulip_uint32_t tulip_intrmask;
192    tulip_uint32_t tulip_cmdmode;
193    tulip_uint32_t tulip_revinfo;
194#if NBPFILTER > 0
195    caddr_t tulip_bpf;			/* BPF context */
196#endif
197    struct ifqueue tulip_txq;
198    tulip_ringinfo_t tulip_rxinfo;
199    tulip_ringinfo_t tulip_txinfo;
200} tulip_softc_t;
201
202#ifndef IFF_ALTPHYS
203#define	IFF_ALTPHYS	IFF_LINK0		/* In case it isn't defined */
204#endif
205typedef enum { TULIP_DC21040, TULIP_DC21140 } tulip_chipid_t;
206const char *tulip_chipdescs[] = {
207    "DC21040 [10Mb/s]",
208    "DC21140 [100Mb/s]",
209};
210
211tulip_softc_t *tulips[NDE];
212tulip_chipid_t tulip_chipids[NDE];
213
214#define	tulip_if	tulip_ac.ac_if
215#define	tulip_unit	tulip_ac.ac_if.if_unit
216#define	tulip_name	tulip_ac.ac_if.if_name
217#define	tulip_hwaddr	tulip_ac.ac_enaddr
218
219#define	TULIP_CRC32_POLY	0xEDB88320UL	/* CRC-32 Poly -- Little Endian */
220#define	TULIP_CHECK_RXCRC	0
221#define	TULIP_MAX_TXSEG		32
222
223#define	TULIP_ADDREQUAL(a1, a2) \
224	(((u_short *)a1)[0] == ((u_short *)a2)[0] \
225	 || ((u_short *)a1)[1] == ((u_short *)a2)[1] \
226	 || ((u_short *)a1)[2] == ((u_short *)a2)[2])
227#define	TULIP_ADDRBRDCST(a1) \
228	(((u_short *)a1)[0] == 0xFFFFU \
229	 || ((u_short *)a1)[1] == 0xFFFFU \
230	 || ((u_short *)a1)[2] == 0xFFFFU)
231
232static void tulip_start(struct ifnet *ifp);
233static void tulip_addr_filter(tulip_softc_t *sc);
234
235#if __FreeBSD__ > 1
236#define	TULIP_IFRESET_ARGS	int unit
237#define	TULIP_RESET(sc)		tulip_reset((sc)->tulip_unit)
238#else
239#define	TULIP_IFRESET_ARGS	int unit, int uban
240#define	TULIP_RESET(sc)		tulip_reset((sc)->tulip_unit, 0)
241#endif
242
243static void
244tulip_reset(
245    TULIP_IFRESET_ARGS)
246{
247    tulip_softc_t *sc = tulips[unit];
248    tulip_ringinfo_t *ri;
249    tulip_desc_t *di;
250    vm_offset_t vmoff;
251
252    *sc->tulip_csrs.csr_busmode = TULIP_BUSMODE_SWRESET;
253    DELAY(10);	/* Wait 10 microsends (actually 50 PCI cycles but at
254		   33MHz that comes to two microseconds but wait a
255		   bit longer anyways) */
256
257    /*
258     * Use the
259     */
260    *sc->tulip_csrs.csr_sia_connectivity = TULIP_SIACONN_RESET;
261    if (sc->tulip_if.if_flags & IFF_ALTPHYS) {
262	if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
263	    printf("%s%d: enabling Thinwire/AUI port\n",
264		   sc->tulip_if.if_name, sc->tulip_if.if_unit);
265	*sc->tulip_csrs.csr_sia_connectivity = TULIP_SIACONN_AUI;
266	sc->tulip_flags |= TULIP_ALTPHYS;
267    } else {
268	if (sc->tulip_flags & TULIP_ALTPHYS)
269	    printf("%s%d: enabling 10baseT/UTP port\n",
270		   sc->tulip_if.if_name, sc->tulip_if.if_unit);
271	*sc->tulip_csrs.csr_sia_connectivity = TULIP_SIACONN_10BASET;
272	sc->tulip_flags &= ~TULIP_ALTPHYS;
273    }
274    *sc->tulip_csrs.csr_txlist = vtophys(&sc->tulip_txinfo.ri_first[0]);
275    *sc->tulip_csrs.csr_rxlist = vtophys(&sc->tulip_rxinfo.ri_first[0]);
276    *sc->tulip_csrs.csr_intr = 0;
277    *sc->tulip_csrs.csr_busmode = 0x4800;
278
279    sc->tulip_txq.ifq_maxlen = TULIP_TXDESCS;
280    /*
281     * Free all the mbufs that were on the transmit ring.
282     */
283    for (;;) {
284	struct mbuf *m;
285	IF_DEQUEUE(&sc->tulip_txq, m);
286	if (m == NULL)
287	    break;
288	m_freem(m);
289    }
290
291    ri = &sc->tulip_txinfo;
292    ri->ri_nextin = ri->ri_nextout = ri->ri_first;
293    ri->ri_free = ri->ri_max;
294    for (di = ri->ri_first; di < ri->ri_last; di++)
295	di->d_status = 0;
296
297    /*
298     * We need to collect all the mbufs were on the
299     * receive ring before we reinit it either to put
300     * them back on or to know if we have to allocate
301     * more.
302     */
303    ri = &sc->tulip_rxinfo;
304    ri->ri_nextin = ri->ri_nextout = ri->ri_first;
305    ri->ri_free = ri->ri_max;
306    for (vmoff = vtophys(sc->tulip_rxspace), di = ri->ri_first;
307	    di < ri->ri_last; di++, vmoff += TULIP_RXBUFSIZE) {
308	di->d_status |= TULIP_DSTS_OWNER;
309	di->d_length1 = TULIP_RXBUFSIZE; di->d_addr1 = vmoff;
310	di->d_length2 = 0; di->d_addr2 = 0;
311    }
312
313    sc->tulip_intrmask = TULIP_STS_NORMALINTR|TULIP_STS_RXINTR|TULIP_STS_TXINTR
314	|TULIP_STS_ABNRMLINTR|TULIP_STS_SYSERROR|TULIP_STS_TXSTOPPED
315	    |TULIP_STS_TXBABBLE|TULIP_STS_LINKFAIL|TULIP_STS_RXSTOPPED;
316    sc->tulip_flags &= ~(TULIP_DOINGSETUP|TULIP_WANTSETUP);
317    tulip_addr_filter(sc);
318}
319
320static void
321tulip_init(
322    int unit)
323{
324    tulip_softc_t *sc = tulips[unit];
325
326    if (sc->tulip_if.if_flags & IFF_UP) {
327	sc->tulip_if.if_flags |= IFF_RUNNING;
328	if (sc->tulip_if.if_flags & IFF_PROMISC) {
329	    sc->tulip_cmdmode |= TULIP_CMD_PROMISCUOUS;
330	} else {
331	    sc->tulip_cmdmode &= ~TULIP_CMD_PROMISCUOUS;
332	    if (sc->tulip_if.if_flags & IFF_ALLMULTI) {
333		sc->tulip_cmdmode |= TULIP_CMD_ALLMULTI;
334	    } else {
335		sc->tulip_cmdmode &= ~TULIP_CMD_ALLMULTI;
336	    }
337	}
338	sc->tulip_cmdmode |= TULIP_CMD_TXRUN;
339	if ((sc->tulip_flags & TULIP_WANTSETUP) == 0) {
340	    sc->tulip_cmdmode |= TULIP_CMD_RXRUN;
341	    sc->tulip_intrmask |= TULIP_STS_RXSTOPPED;
342	} else {
343	    sc->tulip_intrmask &= ~TULIP_STS_RXSTOPPED;
344	    tulip_start(&sc->tulip_if);
345	}
346	sc->tulip_cmdmode |= TULIP_CMD_THRSHLD160;
347	*sc->tulip_csrs.csr_intr = sc->tulip_intrmask;
348	*sc->tulip_csrs.csr_command = sc->tulip_cmdmode;
349    } else {
350	TULIP_RESET(sc);
351	sc->tulip_if.if_flags &= ~IFF_RUNNING;
352    }
353}
354
355
356#if TULIP_CHECK_RXCRC
357static unsigned
358tulip_crc32(
359    u_char *addr,
360    int len)
361{
362    unsigned int crc = 0xFFFFFFFF;
363    static unsigned int crctbl[256];
364    int idx;
365    static int done;
366    /*
367     * initialize the multicast address CRC table
368     */
369    for (idx = 0; !done && idx < 256; idx++) {
370	unsigned int tmp = idx;
371	tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0);	/* XOR */
372	tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0);	/* XOR */
373	tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0);	/* XOR */
374	tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0);	/* XOR */
375	tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0);	/* XOR */
376	tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0);	/* XOR */
377	tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0);	/* XOR */
378	tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0);	/* XOR */
379	crctbl[idx] = tmp;
380    }
381    done = 1;
382
383    while (len-- > 0)
384	crc = (crc >> 8) ^ crctbl[*addr++] ^ crctbl[crc & 0xFF];
385
386    return crc;
387}
388#endif
389
390static void
391tulip_rx_intr(
392    tulip_softc_t *sc)
393{
394    tulip_ringinfo_t *ri = &sc->tulip_rxinfo;
395    struct ifnet *ifp = &sc->tulip_if;
396
397    for (;;) {
398	tulip_desc_t *eop;
399	int total_len, ndescs;
400	caddr_t bufaddr = (caddr_t) sc->tulip_rxspace;
401
402	for (ndescs = 1, eop = ri->ri_nextin;; ndescs++) {
403	    if (((volatile tulip_desc_t *) eop)->d_status & TULIP_DSTS_OWNER)
404		return;
405
406	    if (eop->d_status & TULIP_DSTS_RxLASTDESC)
407		break;
408	    if (++eop == ri->ri_last)
409		eop = ri->ri_first;
410	}
411
412	bufaddr += TULIP_RXBUFSIZE * (ri->ri_nextin - ri->ri_first);
413	total_len = ((eop->d_status >> 16) & 0x7FF) - 4;
414
415	if ((eop->d_status & TULIP_DSTS_ERRSUM) == 0) {
416	    struct ether_header eh;
417	    struct mbuf *m;
418
419#if TULIP_CHECK_RXCRC
420	    unsigned crc = tulip_crc32(bufaddr, total_len);
421	    if (~crc != *((unsigned *) &bufaddr[total_len])) {
422		printf("de0: bad rx crc: %08x [rx] != %08x\n",
423		       *((unsigned *) &bufaddr[total_len]), ~crc);
424		goto next;
425	    }
426#endif
427	    eh = *(struct ether_header *) bufaddr;
428	    eh.ether_type = ntohs(eh.ether_type);
429#if NBPFILTER > 0
430	    if (sc->tulip_bpf != NULL) {
431		bpf_tap(sc->tulip_bpf, bufaddr, total_len);
432		if (eh.ether_type != ETHERTYPE_IP && eh.ether_type != ETHERTYPE_ARP)
433		    goto next;
434		if ((eh.ether_dhost[0] & 1) == 0 &&
435		    !TULIP_ADDREQUAL(eh.ether_dhost, sc->tulip_ac.ac_enaddr))
436		    goto next;
437	    } else if (!TULIP_ADDREQUAL(eh.ether_dhost, sc->tulip_ac.ac_enaddr)
438		    && !TULIP_ADDRBRDCST(eh.ether_dhost)) {
439		    goto next;
440	    }
441#endif
442	    MGETHDR(m, M_DONTWAIT, MT_DATA);
443	    if (m != NULL) {
444		m->m_pkthdr.rcvif = ifp;
445		total_len -= sizeof(eh);
446		if (total_len > MHLEN) {
447		    MCLGET(m, M_DONTWAIT);
448		    if ((m->m_flags & M_EXT) == 0) {
449			m_freem(m);
450			ifp->if_ierrors++;
451			goto next;
452		    }
453		}
454		bcopy(bufaddr + sizeof(eh), mtod(m, caddr_t), total_len);
455		m->m_len = m->m_pkthdr.len = total_len;
456		ether_input(ifp, &eh, m);
457	    } else {
458		ifp->if_ierrors++;
459	    }
460	} else {
461	    ifp->if_ierrors++;
462	}
463next:
464	ifp->if_ipackets++;
465	while (ndescs-- > 0) {
466	    ri->ri_nextin->d_status |= TULIP_DSTS_OWNER;
467	    if (++ri->ri_nextin == ri->ri_last)
468		ri->ri_nextin = ri->ri_first;
469	}
470    }
471}
472
473static int
474tulip_tx_intr(
475    tulip_softc_t *sc)
476{
477    tulip_ringinfo_t *ri = &sc->tulip_txinfo;
478    struct mbuf *m;
479    int xmits = 0;
480
481    while (ri->ri_free < ri->ri_max) {
482	if (((volatile tulip_desc_t *) ri->ri_nextin)->d_status & TULIP_DSTS_OWNER)
483	    break;
484
485	if (ri->ri_nextin->d_flag & TULIP_DFLAG_TxLASTSEG) {
486	    if (ri->ri_nextin->d_flag & TULIP_DFLAG_TxSETUPPKT) {
487		/*
488		 * We've just finished processing a setup packet.
489		 * Mark that we can finished it.  If there's not
490		 * another pending, startup the TULIP receiver.
491		 */
492		sc->tulip_flags &= ~TULIP_DOINGSETUP;
493		if ((sc->tulip_flags & TULIP_WANTSETUP) == 0) {
494		    sc->tulip_cmdmode |= TULIP_CMD_RXRUN;
495		    sc->tulip_intrmask |= TULIP_STS_RXSTOPPED;
496		    *sc->tulip_csrs.csr_command = sc->tulip_cmdmode;
497		    *sc->tulip_csrs.csr_intr = sc->tulip_intrmask;
498		}
499	   } else {
500		IF_DEQUEUE(&sc->tulip_txq, m);
501		m_freem(m);
502		sc->tulip_if.if_collisions +=
503		    (ri->ri_nextin->d_status & TULIP_DSTS_TxCOLLMASK)
504			>> TULIP_DSTS_V_TxCOLLCNT;
505		if (ri->ri_nextin->d_status & TULIP_DSTS_ERRSUM)
506		    sc->tulip_if.if_oerrors++;
507		xmits++;
508	    }
509	}
510
511	if (++ri->ri_nextin == ri->ri_last)
512	    ri->ri_nextin = ri->ri_first;
513	ri->ri_free++;
514	sc->tulip_if.if_flags &= ~IFF_OACTIVE;
515    }
516    sc->tulip_if.if_opackets += xmits;
517    return xmits;
518}
519
520static int
521tulip_txsegment(
522    tulip_softc_t *sc,
523    struct mbuf *m,
524    tulip_addrvec_t *avp,
525    size_t maxseg)
526{
527    int segcnt;
528
529    for (segcnt = 0; m; m = m->m_next) {
530	int len = m->m_len;
531	caddr_t addr = mtod(m, caddr_t);
532	unsigned clsize = CLBYTES - (((u_long) addr) & (CLBYTES-1));
533
534	while (len > 0) {
535	    unsigned slen = min(len, clsize);
536	    if (segcnt < maxseg) {
537		avp->addr = vtophys(addr);
538		avp->length = slen;
539	    }
540	    len -= slen;
541	    addr += slen;
542	    clsize = CLBYTES;
543	    avp++;
544	    segcnt++;
545	}
546    }
547    if (segcnt >= maxseg) {
548	printf("%s%d: tulip_txsegment: extremely fragmented packet dropped (%d segments)\n",
549	       sc->tulip_name, sc->tulip_unit, segcnt);
550	return -1;
551    }
552    avp->addr = 0;
553    avp->length = 0;
554    return segcnt;
555}
556
557static void
558tulip_start(
559    struct ifnet *ifp)
560{
561    tulip_softc_t *sc = (tulip_softc_t *) ifp;
562    struct ifqueue *ifq = &ifp->if_snd;
563    tulip_ringinfo_t *ri = &sc->tulip_txinfo;
564    tulip_desc_t *sop, *eop;
565    struct mbuf *m;
566    tulip_addrvec_t addrvec[TULIP_MAX_TXSEG+1], *avp;
567    int segcnt;
568    tulip_uint32_t d_status;
569
570    if ((ifp->if_flags & IFF_RUNNING) == 0)
571	return;
572
573    for (;;) {
574	if (sc->tulip_flags & TULIP_WANTSETUP) {
575	    if ((sc->tulip_flags & TULIP_DOINGSETUP) || ri->ri_free == 1) {
576		ifp->if_flags |= IFF_OACTIVE;
577		return;
578	    }
579	    bcopy(sc->tulip_setupdata, sc->tulip_setupbuf,
580		   sizeof(sc->tulip_setupbuf));
581	    sc->tulip_flags &= ~TULIP_WANTSETUP;
582	    sc->tulip_flags |= TULIP_DOINGSETUP;
583	    ri->ri_free--;
584	    ri->ri_nextout->d_flag &= TULIP_DFLAG_ENDRING|TULIP_DFLAG_CHAIN;
585	    ri->ri_nextout->d_flag |= TULIP_DFLAG_TxFIRSTSEG|TULIP_DFLAG_TxLASTSEG
586		    |TULIP_DFLAG_TxSETUPPKT|TULIP_DFLAG_TxWANTINTR;
587	    if (sc->tulip_flags & TULIP_WANTHASH)
588		ri->ri_nextout->d_flag |= TULIP_DFLAG_TxHASHFILT;
589	    ri->ri_nextout->d_length1 = sizeof(sc->tulip_setupbuf);
590	    ri->ri_nextout->d_addr1 = vtophys(sc->tulip_setupbuf);
591	    ri->ri_nextout->d_length2 = 0;
592	    ri->ri_nextout->d_addr2 = 0;
593	    ri->ri_nextout->d_status = TULIP_DSTS_OWNER;
594	    *sc->tulip_csrs.csr_txpoll = 1;
595	    /*
596	     * Advance the ring for the next transmit packet.
597	     */
598	    if (++ri->ri_nextout == ri->ri_last)
599		ri->ri_nextout = ri->ri_first;
600	}
601
602	IF_DEQUEUE(ifq, m);
603	if (m == NULL)
604	    break;
605
606	/*
607	 * First find out how many and which different pages
608	 * the mbuf data occupies.  Then check to see if we
609	 * have enough descriptor space in our transmit ring
610	 * to actually send it.
611	 */
612	segcnt = tulip_txsegment(sc, m, addrvec,
613				 min(ri->ri_max - 1, TULIP_MAX_TXSEG));
614	if (segcnt < 0) {
615#if 0
616	    struct mbuf *m0;
617	    MGETHDR(m0, M_DONTWAIT, MT_DATA);
618	    if (m0 != NULL) {
619		if (m->m_pkthdr.len > MHLEN) {
620		    MCLGET(m0, M_DONTWAIT);
621		    if ((m0->m_flags & M_EXT) == 0) {
622			m_freem(m);
623			continue;
624		    }
625		}
626		m_copydata(m, 0, mtod(m0, caddr_t), m->m_pkthdr.len);
627		m0->m_pkthdr.len = m0->m_len = m->m_pkthdr.len;
628		m_freem(m);
629		IF_PREPEND(ifq, m0);
630		continue;
631	    } else {
632#endif
633		m_freem(m);
634		continue;
635#if 0
636	    }
637#endif
638	}
639	if (ri->ri_free - 2 <= (segcnt + 1) >> 1)
640	    break;
641
642	ri->ri_free -= (segcnt + 1) >> 1;
643	/*
644	 * Now we fill in our transmit descriptors.  This is
645	 * a bit reminiscent of going on the Ark two by two
646	 * since each descriptor for the TULIP can describe
647	 * two buffers.  So we advance through the address
648	 * vector two entries at a time to to fill each
649	 * descriptor.  Clear the first and last segment bits
650	 * in each descriptor (actually just clear everything
651	 * but the end-of-ring or chain bits) to make sure
652	 * we don't get messed up by previously sent packets.
653	 */
654	sop = ri->ri_nextout;
655	d_status = 0;
656	avp = addrvec;
657	do {
658	    eop = ri->ri_nextout;
659	    eop->d_flag &= TULIP_DFLAG_ENDRING|TULIP_DFLAG_CHAIN;
660	    eop->d_status = d_status;
661	    eop->d_addr1 = avp->addr; eop->d_length1 = avp->length; avp++;
662	    eop->d_addr2 = avp->addr; eop->d_length2 = avp->length; avp++;
663	    d_status = TULIP_DSTS_OWNER;
664	    if (++ri->ri_nextout == ri->ri_last)
665		ri->ri_nextout = ri->ri_first;
666	} while ((segcnt -= 2) > 0);
667
668	/*
669	 * The descriptors have been filled in.  Mark the first
670	 * and last segments, indicate we want a transmit complete
671	 * interrupt, give the descriptors to the TULIP, and tell
672	 * it to transmit!
673	 */
674	IF_ENQUEUE(&sc->tulip_txq, m);
675	eop->d_flag |= TULIP_DFLAG_TxLASTSEG|TULIP_DFLAG_TxWANTINTR;
676	sop->d_flag |= TULIP_DFLAG_TxFIRSTSEG;
677	sop->d_status = TULIP_DSTS_OWNER;
678
679	*sc->tulip_csrs.csr_txpoll = 1;
680    }
681    if (m != NULL) {
682	ifp->if_flags |= IFF_OACTIVE;
683	IF_PREPEND(ifq, m);
684    }
685}
686
687static int
688tulip_intr(
689    tulip_softc_t *sc)
690{
691    tulip_uint32_t csr;
692
693    while ((csr = *sc->tulip_csrs.csr_status) & (TULIP_STS_NORMALINTR|TULIP_STS_ABNRMLINTR)) {
694	*sc->tulip_csrs.csr_status = csr & sc->tulip_intrmask;
695
696	if (csr & TULIP_STS_SYSERROR) {
697	    if ((csr & TULIP_STS_ERRORMASK) == TULIP_STS_ERR_PARITY) {
698		TULIP_RESET(sc);
699		tulip_init(sc->tulip_unit);
700		return 1;
701	    }
702	}
703	if (csr & TULIP_STS_RXINTR)
704	    tulip_rx_intr(sc);
705	if (sc->tulip_txinfo.ri_free < sc->tulip_txinfo.ri_max) {
706	    tulip_tx_intr(sc);
707	    tulip_start(&sc->tulip_if);
708	}
709	if (csr & TULIP_STS_ABNRMLINTR) {
710	    printf("%s%d: abnormal interrupt: 0x%05x [0x%05x]\n",
711		   sc->tulip_name, sc->tulip_unit, csr, csr & sc->tulip_intrmask);
712	    *sc->tulip_csrs.csr_command = sc->tulip_cmdmode;
713	}
714    }
715    return 1;
716}
717
718/*
719 *  This is the standard method of reading the DEC Address ROMS.
720 */
721static int
722tulip_read_macaddr(
723    tulip_softc_t *sc)
724{
725    int cksum, rom_cksum, idx;
726    tulip_sint32_t csr;
727    unsigned char tmpbuf[8];
728    static u_char testpat[] = { 0xFF, 0, 0x55, 0xAA, 0xFF, 0, 0x55, 0xAA };
729
730    *sc->tulip_csrs.csr_enetrom = 1;
731    for (idx = 0; idx < 32; idx++) {
732	int cnt = 0;
733	while ((csr = *sc->tulip_csrs.csr_enetrom) < 0 && cnt < 10000)
734	    cnt++;
735	sc->tulip_rombuf[idx] = csr & 0xFF;
736    }
737
738    if (bcmp(&sc->tulip_rombuf[0], &sc->tulip_rombuf[16], 8) != 0)
739	return -4;
740    if (bcmp(&sc->tulip_rombuf[24], testpat, 8) != 0)
741	return -3;
742
743    tmpbuf[0] = sc->tulip_rombuf[15]; tmpbuf[1] = sc->tulip_rombuf[14];
744    tmpbuf[2] = sc->tulip_rombuf[13]; tmpbuf[3] = sc->tulip_rombuf[12];
745    tmpbuf[4] = sc->tulip_rombuf[11]; tmpbuf[5] = sc->tulip_rombuf[10];
746    tmpbuf[6] = sc->tulip_rombuf[9];  tmpbuf[7] = sc->tulip_rombuf[8];
747    if (bcmp(&sc->tulip_rombuf[0], tmpbuf, 8) != 0)
748	return -2;
749
750    bcopy(sc->tulip_rombuf, sc->tulip_hwaddr, 6);
751
752    cksum = *(u_short *) &sc->tulip_hwaddr[0];
753    cksum *= 2;
754    if (cksum > 65535) cksum -= 65535;
755    cksum += *(u_short *) &sc->tulip_hwaddr[2];
756    if (cksum > 65535) cksum -= 65535;
757    cksum *= 2;
758    if (cksum > 65535) cksum -= 65535;
759    cksum += *(u_short *) &sc->tulip_hwaddr[4];
760    if (cksum >= 65535) cksum -= 65535;
761
762    rom_cksum = *(u_short *) &sc->tulip_rombuf[6];
763
764    if (cksum != rom_cksum)
765	return -1;
766    return 0;
767}
768
769static unsigned
770tulip_mchash(
771    unsigned char *mca)
772{
773    u_int idx, bit, data, crc = 0xFFFFFFFFUL;
774
775#ifdef __alpha
776    for (data = *(__unaligned u_long *) mca, bit = 0; bit < 48; bit++, data >>=
7771)
778        crc = (crc >> 1) ^ (((crc ^ data) & 1) ? TULIP_CRC32_POLY : 0);
779#else
780    for (idx = 0; idx < 6; idx++)
781        for (data = *mca++, bit = 0; bit < 8; bit++, data >>= 1)
782            crc = (crc >> 1) ^ (((crc ^ data) & 1) ? TULIP_CRC32_POLY : 0);
783#endif
784    return crc & 0x1FF;
785}
786
787static void
788tulip_addr_filter(
789    tulip_softc_t *sc)
790{
791    tulip_uint32_t *sp = sc->tulip_setupdata;
792    struct ether_multistep step;
793    struct ether_multi *enm;
794    int i;
795
796    sc->tulip_flags &= ~TULIP_WANTHASH;
797    sc->tulip_flags |= TULIP_WANTSETUP;
798    sc->tulip_cmdmode &= ~TULIP_CMD_RXRUN;
799    sc->tulip_intrmask &= ~TULIP_STS_RXSTOPPED;
800    if (sc->tulip_ac.ac_multicnt > 14) {
801	unsigned hash;
802	/*
803	 * If we have more than 14 multicasts, we have
804	 * go into hash perfect mode (512 bit multicast
805	 * hash and one perfect hardware).
806	 */
807
808	bzero(sc->tulip_setupdata, sizeof(sc->tulip_setupdata));
809	hash = tulip_mchash(etherbroadcastaddr);
810	sp[hash >> 4] |= 1 << (hash & 0xF);
811	ETHER_FIRST_MULTI(step, &sc->tulip_ac, enm);
812	while (enm != NULL) {
813	    hash = tulip_mchash(enm->enm_addrlo);
814	    sp[hash >> 4] |= 1 << (hash & 0xF);
815	    ETHER_NEXT_MULTI(step, enm);
816	}
817	sc->tulip_cmdmode |= TULIP_WANTHASH;
818	sp[40] = ((u_short *) sc->tulip_ac.ac_enaddr)[0];
819	sp[41] = ((u_short *) sc->tulip_ac.ac_enaddr)[1];
820	sp[42] = ((u_short *) sc->tulip_ac.ac_enaddr)[2];
821    } else {
822	/*
823	 * Else can get perfect filtering for 16 addresses.
824	 */
825	i = 0;
826	ETHER_FIRST_MULTI(step, &sc->tulip_ac, enm);
827	for (; enm != NULL; i++) {
828	    *sp++ = ((u_short *) enm->enm_addrlo)[0];
829	    *sp++ = ((u_short *) enm->enm_addrlo)[1];
830	    *sp++ = ((u_short *) enm->enm_addrlo)[2];
831	    ETHER_NEXT_MULTI(step, enm);
832	}
833	/*
834	 * If an IP address is enabled, turn on broadcast
835	 */
836	if (sc->tulip_ac.ac_ipaddr.s_addr != 0) {
837	    i++;
838	    *sp++ = 0xFFFF;
839	    *sp++ = 0xFFFF;
840	    *sp++ = 0xFFFF;
841	}
842	/*
843	 * Pad the rest with our hardware address
844	 */
845	for (; i < 16; i++) {
846	    *sp++ = ((u_short *) sc->tulip_ac.ac_enaddr)[0];
847	    *sp++ = ((u_short *) sc->tulip_ac.ac_enaddr)[1];
848	    *sp++ = ((u_short *) sc->tulip_ac.ac_enaddr)[2];
849	}
850    }
851}
852
853static int
854tulip_ioctl(
855    struct ifnet *ifp,
856    int cmd,
857    caddr_t data)
858{
859    tulip_softc_t *sc = tulips[ifp->if_unit];
860    int s, error = 0;
861
862    s = splimp();
863
864    switch (cmd) {
865	case SIOCSIFADDR: {
866	    struct ifaddr *ifa = (struct ifaddr *)data;
867
868	    ifp->if_flags |= IFF_UP;
869	    switch(ifa->ifa_addr->sa_family) {
870#ifdef INET
871		case AF_INET: {
872		    ((struct arpcom *)ifp)->ac_ipaddr = IA_SIN(ifa)->sin_addr;
873		    (*ifp->if_init)(ifp->if_unit);
874		    arpwhohas((struct arpcom *)ifp, &IA_SIN(ifa)->sin_addr);
875		    break;
876		}
877#endif /* INET */
878
879#ifdef NS
880		/* This magic copied from if_is.c; I don't use XNS,
881		 * so I have no way of telling if this actually
882		 * works or not.
883		 */
884		case AF_NS: {
885		    struct ns_addr *ina = &(IA_SNS(ifa)->sns_addr);
886		    if (ns_nullhost(*ina)) {
887			ina->x_host = *(union ns_host *)(sc->tulip_ac.ac_enaddr);
888		    } else {
889			ifp->if_flags &= ~IFF_RUNNING;
890			bcopy((caddr_t)ina->x_host.c_host,
891			      (caddr_t)sc->tulip_ac.ac_enaddr,
892			      sizeof sc->tulip_ac.ac_enaddr);
893		    }
894
895		    (*ifp->if_init)(ifp->if_unit);
896		    break;
897		}
898#endif /* NS */
899
900		default: {
901		    (*ifp->if_init)(ifp->if_unit);
902		    break;
903		}
904	    }
905	    break;
906	}
907
908	case SIOCSIFFLAGS: {
909	    /*
910	     * Changing the connection forces a reset.
911	     */
912	    if (sc->tulip_flags & TULIP_ALTPHYS) {
913		if ((ifp->if_flags & IFF_ALTPHYS) == 0)
914		    TULIP_RESET(sc);
915	    } else {
916		if (ifp->if_flags & IFF_ALTPHYS)
917		    TULIP_RESET(sc);
918	    }
919	    (*ifp->if_init)(ifp->if_unit);
920	    break;
921	}
922
923	case SIOCADDMULTI:
924	case SIOCDELMULTI: {
925	    /*
926	     * Update multicast listeners
927	     */
928	    if (cmd == SIOCADDMULTI)
929		error = ether_addmulti((struct ifreq *)data, &sc->tulip_ac);
930	    else
931		error = ether_delmulti((struct ifreq *)data, &sc->tulip_ac);
932
933	    if (error == ENETRESET) {
934		tulip_addr_filter(sc);		/* reset multicast filtering */
935		(*ifp->if_init)(ifp->if_unit);
936		error = 0;
937	    }
938	    break;
939	}
940
941	default: {
942	    error = EINVAL;
943	    break;
944	}
945    }
946
947    splx(s);
948    return error;
949}
950
951static void
952tulip_attach(
953    tulip_softc_t *sc)
954{
955    struct ifnet *ifp = &sc->tulip_if;
956    struct ifaddr *ifa = ifp->if_addrlist;
957    int cnt;
958
959    ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS | IFF_MULTICAST;
960
961    *sc->tulip_csrs.csr_sia_connectivity = 0;
962    *sc->tulip_csrs.csr_sia_connectivity = TULIP_SIACONN_10BASET;
963    for (cnt = 0; cnt < 240000; cnt++) {
964	if ((*sc->tulip_csrs.csr_sia_status & TULIP_SIASTS_LINKFAIL) == 0)
965	    break;
966	DELAY(10);
967    }
968    if (*sc->tulip_csrs.csr_sia_status & TULIP_SIASTS_LINKFAIL) {
969	ifp->if_flags |= IFF_ALTPHYS;
970    } else {
971	sc->tulip_flags |= TULIP_ALTPHYS;
972    }
973    TULIP_RESET(sc);
974
975    ifp->if_init = tulip_init;
976    ifp->if_ioctl = tulip_ioctl;
977    ifp->if_output = ether_output;
978    ifp->if_reset = tulip_reset;
979    ifp->if_start = tulip_start;
980
981    printf("%s%d: %s pass %d.%d ethernet address %s\n",
982	   sc->tulip_name, sc->tulip_unit,
983	   tulip_chipdescs[tulip_chipids[sc->tulip_unit]],
984	   (sc->tulip_revinfo & 0xF0) >> 4,
985	   sc->tulip_revinfo & 0x0F,
986	   ether_sprintf(sc->tulip_hwaddr));
987
988    if_attach(ifp);
989
990#if NBPFILTER > 0
991    bpfattach(&sc->tulip_bpf, ifp, DLT_EN10MB, sizeof(struct ether_header));
992#endif
993}
994
995static void
996tulip_initcsrs(
997    tulip_softc_t *sc,
998    volatile tulip_uint32_t *va_csrs,
999    size_t csr_size)
1000{
1001    sc->tulip_csrs.csr_busmode		= va_csrs +  0 * csr_size;
1002    sc->tulip_csrs.csr_txpoll		= va_csrs +  1 * csr_size;
1003    sc->tulip_csrs.csr_rxpoll		= va_csrs +  2 * csr_size;
1004    sc->tulip_csrs.csr_rxlist		= va_csrs +  3 * csr_size;
1005    sc->tulip_csrs.csr_txlist		= va_csrs +  4 * csr_size;
1006    sc->tulip_csrs.csr_status		= va_csrs +  5 * csr_size;
1007    sc->tulip_csrs.csr_command		= va_csrs +  6 * csr_size;
1008    sc->tulip_csrs.csr_intr		= va_csrs +  7 * csr_size;
1009    sc->tulip_csrs.csr_missed_frame	= va_csrs +  8 * csr_size;
1010    sc->tulip_csrs.csr_enetrom		= va_csrs +  9 * csr_size;
1011    sc->tulip_csrs.csr_reserved		= va_csrs + 10 * csr_size;
1012    sc->tulip_csrs.csr_full_duplex	= va_csrs + 11 * csr_size;
1013    sc->tulip_csrs.csr_sia_status	= va_csrs + 12 * csr_size;
1014    sc->tulip_csrs.csr_sia_connectivity	= va_csrs + 13 * csr_size;
1015    sc->tulip_csrs.csr_sia_tx_rx 	= va_csrs + 14 * csr_size;
1016    sc->tulip_csrs.csr_sia_general	= va_csrs + 15 * csr_size;
1017}
1018
1019static void
1020tulip_initring(
1021    tulip_softc_t *sc,
1022    tulip_ringinfo_t *ri,
1023    tulip_desc_t *descs,
1024    int ndescs)
1025{
1026    ri->ri_max = ndescs;
1027    ri->ri_first = descs;
1028    ri->ri_last = ri->ri_first + ri->ri_max;
1029    bzero((caddr_t) ri->ri_first, sizeof(ri->ri_first[0]) * ri->ri_max);
1030    ri->ri_last[-1].d_flag = TULIP_DFLAG_ENDRING;
1031}
1032
1033#if NPCI > 0
1034/*
1035 * This is the PCI configuration support.  Since the DC21040 is available
1036 * on both EISA and PCI boards, one must be careful in how defines the
1037 * DC21040 in the config file.
1038 */
1039static char* tulip_pci_probe (pcici_t config_id, pcidi_t device_id);
1040static void  tulip_pci_attach(pcici_t config_id, int unit);
1041static u_long tulip_count;
1042
1043struct pci_driver dedevice = {
1044    tulip_pci_probe,
1045    tulip_pci_attach,
1046   &tulip_count,
1047};
1048
1049#define	PCI_CFID	0x00	/* Configuration ID */
1050#define	PCI_CFCS	0x04	/* Configurtion Command/Status */
1051#define	PCI_CFRV	0x08	/* Configuration Revision */
1052#define	PCI_CFLT	0x0c	/* Configuration Latency Timer */
1053#define	PCI_CBIO	0x10	/* Configuration Base IO Address */
1054#define	PCI_CBMA	0x14	/* Configuration Base Memory Address */
1055#define	PCI_CFIT	0x3c	/* Configuration Interrupt */
1056#define	PCI_CFDA	0x40	/* Configuration Driver Area */
1057
1058#define	TULIP_PCI_CSRSIZE	(8 / sizeof(tulip_uint32_t))
1059static char*
1060tulip_pci_probe(
1061    pcici_t config_id,
1062    pcidi_t device_id)
1063{
1064    int idx;
1065    for (idx = 0; idx < NDE; idx++) {
1066	if (tulips[idx] == NULL) {
1067	    if (device_id == 0x00021011ul) {
1068		tulip_chipids[idx] = TULIP_DC21040;
1069		return "digital dc21040 ethernet";
1070	    }
1071	    if (device_id == 0x00091011ul) {
1072		tulip_chipids[idx] = TULIP_DC21140;
1073		return "digital dc21140 fast ethernet";
1074	    }
1075	    return NULL;
1076	}
1077    }
1078    return NULL;
1079}
1080
1081static void
1082tulip_pci_attach(
1083    pcici_t config_id,
1084    int unit)
1085{
1086    tulip_softc_t *sc;
1087    int retval, idx;
1088    vm_offset_t va_csrs, pa_csrs;
1089    tulip_desc_t *rxdescs, *txdescs;
1090
1091    sc = (tulip_softc_t *) malloc(sizeof(*sc), M_DEVBUF, M_NOWAIT);
1092    if (sc == NULL)
1093	return;
1094
1095    rxdescs = (tulip_desc_t *)
1096	malloc(sizeof(tulip_desc_t) * TULIP_RXDESCS, M_DEVBUF, M_NOWAIT);
1097    if (rxdescs == NULL) {
1098	free((caddr_t) sc, M_DEVBUF);
1099	return;
1100    }
1101
1102    txdescs = (tulip_desc_t *)
1103	malloc(sizeof(tulip_desc_t) * TULIP_TXDESCS, M_DEVBUF, M_NOWAIT);
1104    if (txdescs == NULL) {
1105	free((caddr_t) rxdescs, M_DEVBUF);
1106	free((caddr_t) sc, M_DEVBUF);
1107	return;
1108    }
1109
1110    bzero(sc, sizeof(sc));				/* Zero out the softc*/
1111    sc->tulip_rxspace = kmem_alloc(kernel_map, TULIP_RXSPACE + NBPG);
1112    /*
1113     * We've allocated an extra page of receive space so we can double map
1114     * the first page of the receive space into the page after the last page
1115     * of the receive space.  This means that even if a receive wraps around
1116     * the end of the receive space, it will still virtually contiguous and
1117     * that greatly simplifies the recevie logic.
1118     */
1119    pmap_enter(pmap_kernel(), sc->tulip_rxspace + TULIP_RXSPACE,
1120	       vtophys(sc->tulip_rxspace), VM_PROT_READ, TRUE);
1121
1122    sc->tulip_unit = unit;
1123    sc->tulip_name = "de";
1124    retval = pci_map_mem(config_id, PCI_CBMA, &va_csrs, &pa_csrs);
1125    if (!retval) {
1126	kmem_free(kernel_map, sc->tulip_rxspace, TULIP_RXSPACE + NBPG);
1127	free((caddr_t) txdescs, M_DEVBUF);
1128	free((caddr_t) rxdescs, M_DEVBUF);
1129	free((caddr_t) sc, M_DEVBUF);
1130	return;
1131    }
1132    tulips[unit] = sc;
1133    tulip_initcsrs(sc, (volatile tulip_uint32_t *) va_csrs, TULIP_PCI_CSRSIZE);
1134    tulip_initring(sc, &sc->tulip_rxinfo, rxdescs, TULIP_RXDESCS);
1135    tulip_initring(sc, &sc->tulip_txinfo, txdescs, TULIP_TXDESCS);
1136    sc->tulip_revinfo = pci_conf_read(config_id, PCI_CFRV);
1137    if ((retval = tulip_read_macaddr(sc)) < 0) {
1138	printf("de%d: can't read ENET ROM (why=%d) (", sc->tulip_unit, retval);
1139	for (idx = 0; idx < 32; idx++)
1140	    printf("%02x", sc->tulip_rombuf[idx]);
1141	printf("\n");
1142	printf("%s%d: %s %d.%d ethernet address %s\n",
1143	       sc->tulip_name, sc->tulip_unit,
1144	       tulip_chipdescs[tulip_chipids[sc->tulip_unit]],
1145	       (sc->tulip_revinfo & 0xF0) >> 4, sc->tulip_revinfo & 0x0F,
1146	       "unknown");
1147    } else {
1148	pci_map_int (config_id, tulip_intr, (void*) sc, &net_imask);
1149	TULIP_RESET(sc);
1150	tulip_attach(sc);
1151    }
1152}
1153#endif /* NPCI > 0 */
1154#endif /* NDE > 0 */
1155