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Be more robust in the probe. We dont want to get into a loop with

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reinitting when we try to identify devices. If they dont interrupt
on identify we retry once. If this fails we simply ignore that device.
This commit is contained in:
Søren Schmidt 2004-01-30 19:16:08 +00:00
parent 4d3410b485
commit 367d380b54
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=125251
2 changed files with 38 additions and 24 deletions
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11
sys/dev/ata/ata-all.c
View File

@ -563,20 +563,19 @@ ata_getparam(struct ata_device *atadev, u_int8_t command)
if (atadev->param) {
request = ata_alloc_request();
if (request) {
int retries = 2;
while (retries-- > 0) {
request->device = atadev;
request->timeout = 5;
request->retries = -1;
request->u.ata.command = command;
request->flags = (ATA_R_READ | ATA_R_IMMEDIATE | ATA_R_QUIET);
request->flags = (ATA_R_READ | ATA_R_IMMEDIATE);
request->data = (caddr_t)atadev->param;
request->timeout = 2;
request->retries = 3;
request->bytecount = sizeof(struct ata_params);
request->transfersize = DEV_BSIZE;
while (request->retries > 0 ) {
ata_queue_request(request);
if (!(error = request->result))
break;
request->retries--;
request->flags |= ATA_R_REQUEUE;
}
ata_free_request(request);
}

17
sys/dev/ata/ata-queue.c
View File

@ -234,6 +234,20 @@ ata_completed(void *context, int dummy)
ATA_DEBUG_RQ(request, "completed called");
if (request->flags & ATA_R_TIMEOUT) {
/* if negative retry count just give up and unlock channel HW */
if (request->retries < 0) {
if (!(request->flags & ATA_R_QUIET))
ata_prtdev(request->device,
"FAILURE - %s no interrupt\n",
ata_cmd2str(request));
request->result = EIO;
ATA_UNLOCK_CH(channel);
channel->locking(channel, ATA_LF_UNLOCK);
}
else {
/* reset controller and devices */
ata_reinit(channel);
/* if retries still permit, reinject this request */
@ -253,6 +267,7 @@ ata_completed(void *context, int dummy)
request->result = EIO;
}
}
}
else {
/* untimeout request now we have control back */
untimeout((timeout_t *)ata_timeout, request, request->timeout_handle);
@ -402,7 +417,7 @@ ata_timeout(struct ata_request *request)
}
/* report that we timed out */
if (!(request->flags & ATA_R_QUIET)) {
if (!(request->flags & ATA_R_QUIET) && request->retries > 0) {
ata_prtdev(request->device,
"TIMEOUT - %s retrying (%d retr%s left)",
ata_cmd2str(request), request->retries,