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scsi: ibmvfc: Reinit target retries

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If rport target discovery commands fail for some reason, they get retried
up to a set number of retries. Once the retry limit is exceeded, the target
is deleted. In order to delete the target, we either need to do an implicit
logout or a move login. In the move login case, if the move login fails, we
want to retry it. This ensures the retry counter gets reinitialized so the
move login will get retried.

Link: https://lore.kernel.org/r/1620756740-7045-4-git-send-email-brking@linux.vnet.ibm.com
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Brian King 2021-05-11 13:12:20 -05:00 committed by Martin K. Petersen
parent 5114975eb2
commit 2e51f78b5d
1 changed files with 6 additions and 1 deletions
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7
drivers/scsi/ibmvscsi/ibmvfc.c
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@ -654,8 +654,10 @@ static void ibmvfc_reinit_host(struct ibmvfc_host *vhost)
**/
static void ibmvfc_del_tgt(struct ibmvfc_target *tgt)
{
if (!ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_LOGOUT_RPORT))
if (!ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_LOGOUT_RPORT)) {
tgt->job_step = ibmvfc_tgt_implicit_logout_and_del;
tgt->init_retries = 0;
}
wake_up(&tgt->vhost->work_wait_q);
}
@ -4744,6 +4746,7 @@ static int ibmvfc_alloc_target(struct ibmvfc_host *vhost,
*/
wtgt->new_scsi_id = scsi_id;
wtgt->action = IBMVFC_TGT_ACTION_INIT;
wtgt->init_retries = 0;
ibmvfc_init_tgt(wtgt, ibmvfc_tgt_move_login);
}
goto unlock_out;
@ -5336,6 +5339,7 @@ static void ibmvfc_tgt_add_rport(struct ibmvfc_target *tgt)
tgt_dbg(tgt, "Deleting rport with outstanding I/O\n");
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT);
tgt->rport = NULL;
tgt->init_retries = 0;
spin_unlock_irqrestore(vhost->host->host_lock, flags);
fc_remote_port_delete(rport);
return;
@ -5490,6 +5494,7 @@ static void ibmvfc_do_work(struct ibmvfc_host *vhost)
tgt_dbg(tgt, "Deleting rport with I/O outstanding\n");
rport = tgt->rport;
tgt->rport = NULL;
tgt->init_retries = 0;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT);
/*