if_vx_pci.c revision 50107 
1/*
2 * Copyright (C) 1996 Naoki Hamada <nao@tom-yam.or.jp>
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. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the author nor the names of any co-contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD: head/sys/dev/vx/if_vx_pci.c 50107 1999-08-21 06:24:40Z msmith $
30 */
31
32#include "vx.h"
33#if NVX > 0
34
35#include <sys/param.h>
36#include <sys/systm.h>
37#include <sys/kernel.h>
38#include <sys/socket.h>
39
40#include <net/if.h>
41#include <net/if_arp.h>
42
43#include <pci/pcivar.h>
44
45#include <dev/vx/if_vxreg.h>
46
47static void vx_pci_shutdown(void *, int);
48static const char *vx_pci_probe(pcici_t, pcidi_t);
49static void vx_pci_attach(pcici_t, int unit);
50
51static void
52vx_pci_shutdown(
53	void *sc,
54	int howto)
55{
56   vxstop(sc);
57   vxfree(sc);
58}
59
60static const char*
61vx_pci_probe(
62	pcici_t config_id,
63	pcidi_t device_id)
64{
65   if(device_id == 0x590010b7ul)
66      return "3COM 3C590 Etherlink III PCI";
67   if(device_id == 0x595010b7ul || device_id == 0x595110b7ul ||
68	device_id == 0x595210b7ul)
69      return "3COM 3C595 Fast Etherlink III PCI";
70	/*
71	 * The (Fast) Etherlink XL adapters are now supported by
72	 * the xl driver, which uses bus master DMA and is much
73	 * faster. (And which also supports the 3c905B.
74	 */
75#ifdef VORTEX_ETHERLINK_XL
76   if(device_id == 0x900010b7ul || device_id == 0x900110b7ul)
77      return "3COM 3C900 Etherlink XL PCI";
78   if(device_id == 0x905010b7ul || device_id == 0x905110b7ul)
79      return "3COM 3C905 Fast Etherlink XL PCI";
80#endif
81   return NULL;
82}
83
84static void
85vx_pci_attach(
86	pcici_t config_id,
87	int unit)
88{
89    struct vx_softc *sc;
90
91    if (unit >= NVX) {
92       printf("vx%d: not configured; kernel is built for only %d device%s.\n",
93          unit, NVX, NVX == 1 ? "" : "s");
94       return;
95    }
96
97    if ((sc = vxalloc(unit)) == NULL) {
98	return;
99    }
100
101    sc->vx_io_addr = pci_conf_read(config_id, 0x10) & 0xffffffe0;
102
103    if (vxattach(sc) == 0) {
104	return;
105    }
106
107    /* defect check for 3C590 */
108    if ((pci_conf_read(config_id, 0) >> 16) == 0x5900) {
109	GO_WINDOW(0);
110	if (vxbusyeeprom(sc))
111	    return;
112	outw(BASE + VX_W0_EEPROM_COMMAND, EEPROM_CMD_RD | EEPROM_SOFT_INFO_2);
113	if (vxbusyeeprom(sc))
114	    return;
115	if (!(inw(BASE + VX_W0_EEPROM_DATA) & NO_RX_OVN_ANOMALY)) {
116	    printf("Warning! Defective early revision adapter!\n");
117	}
118    }
119
120    /*
121     * Add shutdown hook so that DMA is disabled prior to reboot. Not
122     * doing do could allow DMA to corrupt kernel memory during the
123     * reboot before the driver initializes.
124     */
125    EVENTHANDLER_REGISTER(shutdown_post_sync, vx_pci_shutdown, sc,
126			  SHUTDOWN_PRI_DEFAULT);
127
128    pci_map_int(config_id, vxintr, (void *) sc, &net_imask);
129}
130
131static struct pci_device vxdevice = {
132    "vx",
133    vx_pci_probe,
134    vx_pci_attach,
135    &vx_count,
136    NULL
137};
138
139COMPAT_PCI_DRIVER (vx, vxdevice);
140
141#endif	/* NVX */
142