allow netboot ethernet address to be hard-coded into binary so that
machines with old firmware which doesn't pass it in the boot device can work. Assume that if the ethernet address isn't passed in, it uses the old (dain-bramaged) 'read' interface works on my 3000/300LX.
This commit is contained in:
cgd
parent
abcd6f59bf
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e2bd92c0e6
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@ -1,6 +1,7 @@
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/* $NetBSD: if_prom.c,v 1.5 1997/01/16 01:21:39 cgd Exp $ */
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/* $NetBSD: if_prom.c,v 1.6 1997/01/18 00:34:01 cgd Exp $ */
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/*
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* Copyright (c) 1997 Christopher G. Demetriou. All rights reserved.
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* Copyright (c) 1993 Adam Glass
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* All rights reserved.
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*
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@ -41,6 +42,8 @@
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#include "include/prom.h"
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#include <lib/libkern/libkern.h>
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#include "../bbinfo.h"
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int prom_probe();
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int prom_match();
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void prom_init();
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@ -57,6 +60,16 @@ struct netif_dif prom_ifs[] = {
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struct netif_stats prom_stats[NENTS(prom_ifs)];
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struct netbbinfo netbbinfo = {
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0xfeedbabedeadbeef, /* magic number */
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0, /* set */
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0, 0, 0, 0, 0, 0, /* ether address */
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0, /* force */
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{ 0, }, /* pad2 */
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0, /* cksum */
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0xfeedbeefdeadbabe, /* magic number */
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};
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struct netif_driver prom_netif_driver = {
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"prom", /* netif_bname */
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prom_match, /* netif_match */
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@ -69,7 +82,7 @@ struct netif_driver prom_netif_driver = {
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NENTS(prom_ifs) /* netif_nifs */
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};
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int netfd;
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int netfd, broken_firmware;
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int
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prom_match(nif, machdep_hint)
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@ -117,11 +130,17 @@ prom_get(desc, pkt, len, timeout)
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t = getsecs();
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cc = 0;
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while (((getsecs() - t) < timeout) && !cc) {
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ret.bits = prom_read(netfd, sizeof hate, hate, 0);
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if (broken_firmware)
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ret.bits = prom_read(netfd, 0, hate, 0);
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else
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ret.bits = prom_read(netfd, sizeof hate, hate, 0);
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if (ret.u.status == 0)
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cc += ret.u.retval;
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cc = ret.u.retval;
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}
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cc = len;
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if (broken_firmware)
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cc = min(cc, len);
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else
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cc = len;
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bcopy(hate, pkt, cc);
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return cc;
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@ -136,8 +155,28 @@ prom_init(desc, machdep_hint)
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{
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prom_return_t ret;
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char devname[64];
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int devlen, i;
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int devlen, i, netbbinfovalid;
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char *enet_addr;
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u_int64_t *qp, csum;
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broken_firmware = 0;
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csum = 0;
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for (i = 0, qp = (u_int64_t *)&netbbinfo;
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i < (sizeof netbbinfo / sizeof (u_int64_t)); i++, qp++)
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csum += *qp;
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netbbinfovalid = (csum == 0);
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if (netbbinfovalid)
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netbbinfovalid = netbbinfo.set;
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#if 0
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printf("netbbinfo ");
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if (!netbbinfovalid)
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printf("invalid\n");
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else
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printf("valid: force = %d, ea = %s\n", netbbinfo.force,
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ether_sprintf(netbbinfo.ether_addr));
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#endif
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ret.bits = prom_getenv(PROM_E_BOOTED_DEV, devname, sizeof(devname));
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devlen = ret.u.retval;
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@ -147,7 +186,7 @@ prom_init(desc, machdep_hint)
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for (i = 0; i < 8; i++) {
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enet_addr = strchr(enet_addr, ' ');
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if (enet_addr == NULL) {
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printf("Boot device name does not contain ethernet address.\n");
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printf("\nBoot device name does not contain ethernet address.\n");
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goto punt;
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}
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enet_addr++;
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@ -165,7 +204,7 @@ prom_init(desc, machdep_hint)
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enet_addr++;
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if (hv == -1 || lv == -1) {
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printf("Bogus ethernet address.\n");
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printf("\nBoot device name contains bogus ethernet address.\n");
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goto punt;
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}
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@ -174,20 +213,36 @@ prom_init(desc, machdep_hint)
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#undef dval
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}
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if (netbbinfovalid && netbbinfo.force) {
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printf("\nUsing hard-coded ethernet address (forced).\n\n");
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bcopy(netbbinfo.ether_addr, desc->myea, sizeof desc->myea);
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}
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gotit:
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printf("boot: ethernet address: %s\n", ether_sprintf(desc->myea));
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ret.bits = prom_open(devname, devlen + 1);
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if (ret.u.status) {
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printf("prom_init: open failed: %d\n", ret.u.status);
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goto punt;
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goto reallypunt;
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}
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netfd = ret.u.retval;
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return;
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punt:
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broken_firmware = 1;
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if (netbbinfovalid) {
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printf("Using hard-coded ethernet address.\n\n");
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bcopy(netbbinfo.ether_addr, desc->myea, sizeof desc->myea);
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goto gotit;
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}
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reallypunt:
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printf("Boot device name was: \"%s\"\n", devname);
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printf("\n");
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printf("Your firmware may be too old to network-boot NetBSD/Alpha.\n");
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printf("Your firmware may be too old to network-boot NetBSD/Alpha,\n");
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printf("or you might have to hard-code an ethernet address into\n");
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printf("your network boot block with setnetbootinfo(8).\n");
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halt();
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}
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