Commit 4158d9ce authored by James Bottomley's avatar James Bottomley

fix scsi/qlogicfc.c stack problems

Revert Randy's stack fix and apply the one from the -dj tree
instead.
parent 4955a5c8
......@@ -643,6 +643,7 @@ struct isp2x00_hostdata {
u_char queued;
u_char host_id;
struct timer_list explore_timer;
struct id_name_map tempmap[QLOGICFC_MAX_ID + 1];
};
......@@ -836,22 +837,13 @@ static int isp2x00_make_portdb(struct Scsi_Host *host)
short param[8];
int i, j;
struct id_name_map *map; /* base of array [QLOGICFC_MAX_ID + 1] */
struct id_name_map *mapx; /* array entry pointer */
struct isp2x00_hostdata *hostdata;
hostdata = (struct isp2x00_hostdata *) host->hostdata;
map = kmalloc((QLOGICFC_MAX_ID + 1) * sizeof(struct id_name_map), GFP_ATOMIC);
if (!map) {
printk("qlogicfc%d : error getting memory -- cannot make port database.\n",
hostdata->host_id);
goto fini;
}
memset(map, 0, (QLOGICFC_MAX_ID + 1) * sizeof(struct id_name_map));
isp2x00_disable_irqs(host);
hostdata = (struct isp2x00_hostdata *) host->hostdata;
memset(hostdata->tempmap, 0, sizeof(hostdata->tempmap));
#if ISP2x00_FABRIC
for (i = 0x81; i < QLOGICFC_MAX_ID; i++) {
param[0] = MBOX_PORT_LOGOUT;
......@@ -876,74 +868,72 @@ static int isp2x00_make_portdb(struct Scsi_Host *host)
if (param[0] == MBOX_COMMAND_COMPLETE) {
hostdata->port_id = ((u_int) param[3]) << 16;
hostdata->port_id |= param[2];
map->loop_id = param[1];
map->wwn = hostdata->wwn;
hostdata->tempmap[0].loop_id = param[1];
hostdata->tempmap[0].wwn = hostdata->wwn;
}
else {
printk("qlogicfc%d : error getting scsi id.\n", hostdata->host_id);
}
for (i = 0, mapx = map; i <= QLOGICFC_MAX_ID; i++, mapx++)
mapx->loop_id = map->loop_id;
for (i = 0; i <=QLOGICFC_MAX_ID; i++)
hostdata->tempmap[i].loop_id = hostdata->tempmap[0].loop_id;
for (i = 0, j = 1, mapx = map + 1; i <= QLOGICFC_MAX_LOOP_ID; i++) {
for (i = 0, j = 1; i <= QLOGICFC_MAX_LOOP_ID; i++) {
param[0] = MBOX_GET_PORT_NAME;
param[1] = (i << 8) & 0xff00;
isp2x00_mbox_command(host, param);
if (param[0] == MBOX_COMMAND_COMPLETE) {
mapx->loop_id = i;
mapx->wwn = ((u64) (param[2] & 0xff)) << 56;
mapx->wwn |= ((u64) ((param[2] >> 8) & 0xff)) << 48;
mapx->wwn |= ((u64) (param[3] & 0xff)) << 40;
mapx->wwn |= ((u64) ((param[3] >> 8) & 0xff)) << 32;
mapx->wwn |= ((u64) (param[6] & 0xff)) << 24;
mapx->wwn |= ((u64) ((param[6] >> 8) & 0xff)) << 16;
mapx->wwn |= ((u64) (param[7] & 0xff)) << 8;
mapx->wwn |= ((u64) ((param[7] >> 8) & 0xff));
hostdata->tempmap[j].loop_id = i;
hostdata->tempmap[j].wwn = ((u64) (param[2] & 0xff)) << 56;
hostdata->tempmap[j].wwn |= ((u64) ((param[2] >> 8) & 0xff)) << 48;
hostdata->tempmap[j].wwn |= ((u64) (param[3] & 0xff)) << 40;
hostdata->tempmap[j].wwn |= ((u64) ((param[3] >> 8) & 0xff)) << 32;
hostdata->tempmap[j].wwn |= ((u64) (param[6] & 0xff)) << 24;
hostdata->tempmap[j].wwn |= ((u64) ((param[6] >> 8) & 0xff)) << 16;
hostdata->tempmap[j].wwn |= ((u64) (param[7] & 0xff)) << 8;
hostdata->tempmap[j].wwn |= ((u64) ((param[7] >> 8) & 0xff));
j++;
mapx++;
}
}
#if ISP2x00_FABRIC
isp2x00_init_fabric(host, map, j);
isp2x00_init_fabric(host, hostdata->tempmap, j);
#endif
for (i = 0, mapx = map; i <= QLOGICFC_MAX_ID; i++, mapx++) {
struct id_name_map *tmap; /* second array entry pointer */
if (mapx->wwn != hostdata->port_db[i].wwn) {
for (j = 0, tmap = map; j <= QLOGICFC_MAX_ID; j++, tmap++) {
if (tmap->wwn == hostdata->port_db[i].wwn) {
hostdata->port_db[i].loop_id = tmap->loop_id;
for (i = 0; i <= QLOGICFC_MAX_ID; i++) {
if (hostdata->tempmap[i].wwn != hostdata->port_db[i].wwn) {
for (j = 0; j <= QLOGICFC_MAX_ID; j++) {
if (hostdata->tempmap[j].wwn == hostdata->port_db[i].wwn) {
hostdata->port_db[i].loop_id = hostdata->tempmap[j].loop_id;
break;
}
}
if (j == QLOGICFC_MAX_ID + 1)
hostdata->port_db[i].loop_id = map->loop_id;
hostdata->port_db[i].loop_id = hostdata->tempmap[0].loop_id;
for (j = 0; j <= QLOGICFC_MAX_ID; j++) {
if (hostdata->port_db[j].wwn == mapx->wwn || !hostdata->port_db[j].wwn) {
if (hostdata->port_db[j].wwn == hostdata->tempmap[i].wwn || !hostdata->port_db[j].wwn) {
break;
}
}
if (j == QLOGICFC_MAX_ID + 1)
printk("qlogicfc%d : Too many scsi devices, no more room in port map.\n", hostdata->host_id);
if (!hostdata->port_db[j].wwn) {
hostdata->port_db[j].loop_id = mapx->loop_id;
hostdata->port_db[j].wwn = mapx->wwn;
hostdata->port_db[j].loop_id = hostdata->tempmap[i].loop_id;
hostdata->port_db[j].wwn = hostdata->tempmap[i].wwn;
}
} else
hostdata->port_db[i].loop_id = mapx->loop_id;
hostdata->port_db[i].loop_id = hostdata->tempmap[i].loop_id;
}
isp2x00_enable_irqs(host);
kfree(map);
fini:
return 0;
}
......
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