static void __init pluto_detect_timeout(unsigned long data)
{
PLND(("Timeout\n"))
up(&fc_sem);
}
/* Detect all SSAs attached to the machine.
To be fast, do it on all online FC channels at the same time. */
__initfunc(int pluto_detect(Scsi_Host_Template *tpnt))
{
int i, retry, nplutos;
fc_channel *fc;
Scsi_Device dev;
tpnt->proc_dir = &proc_scsi_pluto;
fcscount = 0;
for_each_online_fc_channel(fc)
fcscount++;
PLND(("%d channels online\n", fcscount))
if (!fcscount) {
#if defined(MODULE) && defined(CONFIG_FC4_SOC_MODULE) && defined(CONFIG_KMOD)
request_module("soc");
for_each_online_fc_channel(fc)
fcscount++;
if (!fcscount)
#endif
return 0;
}
fcs = (struct ctrl_inquiry *) scsi_init_malloc (sizeof (struct ctrl_inquiry) * fcscount, GFP_DMA);
if (!fcs) {
printk ("PLUTO: Not enough memory to probe\n");
return 0;
}
memset (fcs, 0, sizeof (struct ctrl_inquiry) * fcscount);
memset (&dev, 0, sizeof(dev));
atomic_set (&fcss, fcscount);
fc_timer.function = pluto_detect_timeout;
i = 0;
for_each_online_fc_channel(fc) {
Scsi_Cmnd *SCpnt;
struct Scsi_Host *host;
struct pluto *pluto;
if (i == fcscount) break;
PLD(("trying to find SSA\n"))
/* If this is already registered to some other SCSI host, then it cannot be pluto */
if (fc->scsi_name[0]) continue;
memcpy (fc->scsi_name, "SSA", 4);
fcs[i].fc = fc;
fc->can_queue = PLUTO_CAN_QUEUE;
fc->rsp_size = 64;
fc->encode_addr = pluto_encode_addr;
fc->fcp_register(fc, TYPE_SCSI_FCP, 0);
SCpnt = &(fcs[i].cmd);
host = &(fcs[i].host);
pluto = (struct pluto *)host->hostdata;
pluto->fc = fc;
SCpnt->host = host;
SCpnt->cmnd[0] = INQUIRY;
SCpnt->cmnd[4] = 255;
/* FC layer requires this, so that SCpnt->device->tagged_supported is initially 0 */
SCpnt->device = &dev;
SCpnt->cmd_len = COMMAND_SIZE(INQUIRY);
SCpnt->request.rq_status = RQ_SCSI_BUSY;
SCpnt->done = pluto_detect_done;
SCpnt->bufflen = 256;
SCpnt->buffer = fcs[i].inquiry;
SCpnt->request_bufflen = 256;
SCpnt->request_buffer = fcs[i].inquiry;
PLD(("set up %d %08lx\n", i, (long)SCpnt))
i++;
}
for (retry = 0; retry < 5; retry++) {
for (i = 0; i < fcscount; i++) {
if (!fcs[i].fc) break;
if (fcs[i].cmd.request.rq_status != RQ_SCSI_DONE) {
disable_irq(fcs[i].fc->irq);
PLND(("queuecommand %d %d\n", retry, i))
fcp_scsi_queuecommand (&(fcs[i].cmd),
pluto_detect_scsi_done);
enable_irq(fcs[i].fc->irq);
}
}
fc_timer.expires = jiffies + 10 * HZ;
add_timer(&fc_timer);
down(&fc_sem);
PLND(("Woken up\n"))
if (!atomic_read(&fcss))
break; /* All fc channels have answered us */
}
del_timer(&fc_timer);
PLND(("Finished search\n"))
for (i = 0, nplutos = 0; i < fcscount; i++) {
Scsi_Cmnd *SCpnt;
if (!(fc = fcs[i].fc)) break;
SCpnt = &(fcs[i].cmd);
/* Let FC mid-level free allocated resources */
SCpnt->done (SCpnt);
if (!SCpnt->result) {
struct pluto_inquiry *inq;
struct pluto *pluto;
struct Scsi_Host *host;
inq = (struct pluto_inquiry *)fcs[i].inquiry;
if ((inq->dtype & 0x1f) == TYPE_PROCESSOR &&
!strncmp (inq->vendor_id, "SUN", 3) &&
!strncmp (inq->product_id, "SSA", 3)) {
char *p;
long *ages;
ages = kmalloc (((inq->channels + 1) * inq->targets) * sizeof(long), GFP_KERNEL);
if (!ages) continue;
host = scsi_register (tpnt, sizeof (struct pluto));
if (!host) panic ("Cannot register PLUTO host\n");
nplutos++;
if (fc->module) __MOD_INC_USE_COUNT(fc->module);
pluto = (struct pluto *)host->hostdata;
host->max_id = inq->targets;
host->max_channel = inq->channels;
host->irq = fc->irq;
host->select_queue_depths = pluto_select_queue_depths;
fc->channels = inq->channels + 1;
fc->targets = inq->targets;
fc->ages = ages;
memset (ages, 0, ((inq->channels + 1) * inq->targets) * sizeof(long));
pluto->fc = fc;
memcpy (pluto->rev_str, inq->revision, 4);
pluto->rev_str[4] = 0;
p = strchr (pluto->rev_str, ' ');
if (p) *p = 0;
memcpy (pluto->fw_rev_str, inq->fw_revision, 4);
pluto->fw_rev_str[4] = 0;
p = strchr (pluto->fw_rev_str, ' ');
if (p) *p = 0;
memcpy (pluto->serial_str, inq->serial, 12);
pluto->serial_str[12] = 0;
p = strchr (pluto->serial_str, ' ');
if (p) *p = 0;
PLD(("Found SSA rev %s fw rev %s serial %s %dx%d\n", pluto->rev_str, pluto->fw_rev_str, pluto->serial_str, host->max_channel, host->max_id))
} else
fc->fcp_register(fc, TYPE_SCSI_FCP, 1);
} else
