File 0175-iscsi-base-all-handling-of-check-co.patch of Package qemu-testsuite.20749
From: Lin Ma <lma@suse.com>
Date: Mon, 28 Oct 2019 13:22:01 +0800
Subject: iscsi: base all handling of check condition on scsi_sense_to_errno
Now that scsi-disk is not using scsi_sense_to_errno to separate guest-recoverable
sense codes, we can modify it to simplify iscsi's own sense handling.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 8c460269aa77b6c8e434ac57cf66b71aed00ff09)
[LM: BSC#1154790]
Signed-off-by: Lin Ma <lma@suse.com>
---
block/iscsi.c | 29 ++++++++++++++---------------
scsi/utils.c | 4 ++--
2 files changed, 16 insertions(+), 17 deletions(-)
diff --git a/block/iscsi.c b/block/iscsi.c
index 9143dd0bc8e5804b26ae947b2d18..53a1803213564bca6298600fc691 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -214,9 +214,9 @@ static inline unsigned exp_random(double mean)
static int iscsi_translate_sense(struct scsi_sense *sense)
{
- return - scsi_sense_to_errno(sense->key,
- (sense->ascq & 0xFF00) >> 8,
- sense->ascq & 0xFF);
+ return scsi_sense_to_errno(sense->key,
+ (sense->ascq & 0xFF00) >> 8,
+ sense->ascq & 0xFF);
}
/* Called (via iscsi_service) with QemuMutex held. */
@@ -233,13 +233,6 @@ iscsi_co_generic_cb(struct iscsi_context *iscsi, int status,
if (status != SCSI_STATUS_GOOD) {
if (iTask->retries++ < ISCSI_CMD_RETRIES) {
- if (status == SCSI_STATUS_CHECK_CONDITION
- && task->sense.key == SCSI_SENSE_UNIT_ATTENTION) {
- error_report("iSCSI CheckCondition: %s",
- iscsi_get_error(iscsi));
- iTask->do_retry = 1;
- goto out;
- }
if (status == SCSI_STATUS_BUSY ||
status == SCSI_STATUS_TIMEOUT ||
status == SCSI_STATUS_TASK_SET_FULL) {
@@ -261,14 +254,20 @@ iscsi_co_generic_cb(struct iscsi_context *iscsi, int status,
timer_mod(&iTask->retry_timer,
qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + retry_time);
iTask->do_retry = 1;
- goto out;
+ }
+ } else if (status == SCSI_STATUS_CHECK_CONDITION) {
+ int error = iscsi_translate_sense(&task->sense);
+ if (error == EAGAIN) {
+ error_report("iSCSI CheckCondition: %s",
+ iscsi_get_error(iscsi));
+ iTask->do_retry = 1;
+ } else {
+ iTask->err_code = -error;
+ error_report("iSCSI Failure: %s", iscsi_get_error(iscsi));
}
}
- iTask->err_code = iscsi_translate_sense(&task->sense);
- error_report("iSCSI Failure: %s", iscsi_get_error(iscsi));
}
-out:
if (iTask->co) {
aio_bh_schedule_oneshot(iTask->iscsilun->aio_context,
iscsi_co_generic_bh_cb, iTask);
@@ -916,7 +915,7 @@ iscsi_aio_ioctl_cb(struct iscsi_context *iscsi, int status,
if (status < 0) {
error_report("Failed to ioctl(SG_IO) to iSCSI lun. %s",
iscsi_get_error(iscsi));
- acb->status = iscsi_translate_sense(&acb->task->sense);
+ acb->status = -iscsi_translate_sense(&acb->task->sense);
}
acb->ioh->driver_status = 0;
diff --git a/scsi/utils.c b/scsi/utils.c
index 873d49c90796a8ec75671f5d11bb..8f1e87fb9513bfdf5662686532fe 100644
--- a/scsi/utils.c
+++ b/scsi/utils.c
@@ -380,7 +380,7 @@ int scsi_sense_to_errno(int key, int asc, int ascq)
case RECOVERED_ERROR:
case UNIT_ATTENTION:
/* These sense keys are not errors */
- return 0;
+ return EAGAIN;
case ABORTED_COMMAND: /* COMMAND ABORTED */
return ECANCELED;
case NOT_READY:
@@ -409,7 +409,7 @@ int scsi_sense_to_errno(int key, int asc, int ascq)
case 0x2700: /* WRITE PROTECTED */
return EACCES;
case 0x0401: /* NOT READY, IN PROGRESS OF BECOMING READY */
- return EAGAIN;
+ return EINPROGRESS;
case 0x0402: /* NOT READY, INITIALIZING COMMAND REQUIRED */
return ENOTCONN;
default: