admin/libiscsi
1
0
Fork 0
Code Issues Pull Requests Actions 2 Packages Projects Releases Wiki Activity

test: add prout_preempt() helper function

Browse Source 
Issue a Persistent Reservation Out PREEMPT request, with keys and type
provided.
PREEMPT allows for the removal of registrations, and replacement of
reservations.

Signed-off-by: David Disseldorp <ddiss@suse.de>
This commit is contained in:
David Disseldorp
2015-09-25 12:09:58 +02:00
parent 9aa5b55b41
commit 760ae95d9c
2 changed files with 55 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

52
test-tool/iscsi-support.c
View File

@@ -1022,6 +1022,58 @@ prout_clear(struct scsi_device *sdev, unsigned long long key)
return ret;
}
int
prout_preempt(struct scsi_device *sdev,
unsigned long long sark, unsigned long long rk,
enum scsi_persistent_out_type pr_type)
{
struct scsi_persistent_reserve_out_basic poc;
struct scsi_task *task;
int ret = 0;
/* reserve the target using specified reservation type */
logging(LOG_VERBOSE,
"Send PROUT/PREEMPT to preempt reservation and/or "
"registration");
if (!data_loss) {
printf("--dataloss flag is not set in. Skipping PROUT\n");
return -1;
}
memset(&poc, 0, sizeof (poc));
poc.reservation_key = rk;
poc.service_action_reservation_key = sark;
task = scsi_cdb_persistent_reserve_out(
SCSI_PERSISTENT_RESERVE_PREEMPT,
SCSI_PERSISTENT_RESERVE_SCOPE_LU,
pr_type, &poc);
assert(task != NULL);
task = send_scsi_command(sdev, task, NULL);
if (task == NULL) {
logging(LOG_NORMAL,
"[FAILED] Failed to send PROUT command: %s",
iscsi_get_error(sdev->iscsi_ctx));
return -1;
}
if (status_is_invalid_opcode(task)) {
scsi_free_scsi_task(task);
logging(LOG_NORMAL, "[SKIPPED] PERSISTENT RESERVE OUT is not implemented.");
return -2;
}
if (task->status != SCSI_STATUS_GOOD) {
logging(LOG_NORMAL,
"[FAILED] PROUT command: failed with sense. %s",
iscsi_get_error(sdev->iscsi_ctx));
ret = -1;
}
scsi_free_scsi_task(task);
return ret;
}
int
prin_verify_reserved_as(struct scsi_device *sdev,
unsigned long long key, enum scsi_persistent_out_type pr_type)

3
test-tool/iscsi-support.h
View File

@@ -274,6 +274,9 @@ int prout_reserve(struct scsi_device *sdev,
int prout_release(struct scsi_device *sdev,
unsigned long long key, enum scsi_persistent_out_type pr_type);
int prout_clear(struct scsi_device *sdev, unsigned long long key);
int prout_preempt(struct scsi_device *sdev,
unsigned long long sark, unsigned long long rk,
enum scsi_persistent_out_type pr_type);
int prin_verify_not_reserved(struct scsi_device *sdev);
int prin_verify_reserved_as(struct scsi_device *sdev,
unsigned long long key, enum scsi_persistent_out_type pr_type);