if_vx_pci.c revision 50135 
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 50135 1999-08-21 22:10:49Z 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/eventhandler.h>
38#include <sys/kernel.h>
39#include <sys/socket.h>
40
41#include <net/if.h>
42#include <net/if_arp.h>
43
44#include <pci/pcivar.h>
45
46#include <dev/vx/if_vxreg.h>
47
48static void vx_pci_shutdown(void *, int);
49static const char *vx_pci_probe(pcici_t, pcidi_t);
50static void vx_pci_attach(pcici_t, int unit);
51
52static void
53vx_pci_shutdown(
54	void *sc,
55	int howto)
56{
57   vxstop(sc);
58   vxfree(sc);
59}
60
61static const char*
62vx_pci_probe(
63	pcici_t config_id,
64	pcidi_t device_id)
65{
66   if(device_id == 0x590010b7ul)
67      return "3COM 3C590 Etherlink III PCI";
68   if(device_id == 0x595010b7ul || device_id == 0x595110b7ul ||
69	device_id == 0x595210b7ul)
70      return "3COM 3C595 Fast Etherlink III PCI";
71	/*
72	 * The (Fast) Etherlink XL adapters are now supported by
73	 * the xl driver, which uses bus master DMA and is much
74	 * faster. (And which also supports the 3c905B.
75	 */
76#ifdef VORTEX_ETHERLINK_XL
77   if(device_id == 0x900010b7ul || device_id == 0x900110b7ul)
78      return "3COM 3C900 Etherlink XL PCI";
79   if(device_id == 0x905010b7ul || device_id == 0x905110b7ul)
80      return "3COM 3C905 Fast Etherlink XL PCI";
81#endif
82   return NULL;
83}
84
85static void
86vx_pci_attach(
87	pcici_t config_id,
88	int unit)
89{
90    struct vx_softc *sc;
91
92    if (unit >= NVX) {
93       printf("vx%d: not configured; kernel is built for only %d device%s.\n",
94          unit, NVX, NVX == 1 ? "" : "s");
95       return;
96    }
97
98    if ((sc = vxalloc(unit)) == NULL) {
99	return;
100    }
101
102    sc->vx_io_addr = pci_conf_read(config_id, 0x10) & 0xffffffe0;
103
104    if (vxattach(sc) == 0) {
105	return;
106    }
107
108    /* defect check for 3C590 */
109    if ((pci_conf_read(config_id, 0) >> 16) == 0x5900) {
110	GO_WINDOW(0);
111	if (vxbusyeeprom(sc))
112	    return;
113	outw(BASE + VX_W0_EEPROM_COMMAND, EEPROM_CMD_RD | EEPROM_SOFT_INFO_2);
114	if (vxbusyeeprom(sc))
115	    return;
116	if (!(inw(BASE + VX_W0_EEPROM_DATA) & NO_RX_OVN_ANOMALY)) {
117	    printf("Warning! Defective early revision adapter!\n");
118	}
119    }
120
121    /*
122     * Add shutdown hook so that DMA is disabled prior to reboot. Not
123     * doing do could allow DMA to corrupt kernel memory during the
124     * reboot before the driver initializes.
125     */
126    EVENTHANDLER_REGISTER(shutdown_post_sync, vx_pci_shutdown, sc,
127			  SHUTDOWN_PRI_DEFAULT);
128
129    pci_map_int(config_id, vxintr, (void *) sc, &net_imask);
130}
131
132static struct pci_device vxdevice = {
133    "vx",
134    vx_pci_probe,
135    vx_pci_attach,
136    &vx_count,
137    NULL
138};
139
140COMPAT_PCI_DRIVER (vx, vxdevice);
141
142#endif	/* NVX */
143