[PATCH v2 2/3] qla2xxx: on session delete return nvme cmd

[Himanshu Madhani <hmadhani@xxxxxxxxxxx>]

From: Quinn Tran <qutran@xxxxxxxxxxx>

- on session delete or chip reset, reject all NVME commands.
- on NVME command submission error, free srb resource.

Signed-off-by: Quinn Tran <qutran@xxxxxxxxxxx>
Signed-off-by: Himanshu Madhani <hmadhani@xxxxxxxxxxx>
---
 drivers/scsi/qla2xxx/qla_nvme.c | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c
index b43c62758cec..2c64457ce713 100644
--- a/drivers/scsi/qla2xxx/qla_nvme.c
+++ b/drivers/scsi/qla2xxx/qla_nvme.c
@@ -241,6 +241,10 @@ static int qla_nvme_ls_req(struct nvme_fc_local_port *lport,
 
 	vha = fcport->vha;
 	ha = vha->hw;
+
+	if (!ha->flags.fw_started || (fcport && fcport->deleted))
+		return rval;
+
 	/* Alloc SRB structure */
 	sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
 	if (!sp)
@@ -272,6 +276,7 @@ static int qla_nvme_ls_req(struct nvme_fc_local_port *lport,
 		    "qla2x00_start_sp failed = %d\n", rval);
 		atomic_dec(&sp->ref_count);
 		wake_up(&sp->nvme_ls_waitq);
+		sp->free(sp);
 		return rval;
 	}
 
@@ -488,7 +493,7 @@ static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
 
 	vha = fcport->vha;
 
-	if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
+	if ((qpair && !qpair->fw_started) || (fcport && fcport->deleted))
 		return rval;
 
 	/*
@@ -523,6 +528,7 @@ static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
 		    "qla2x00_start_nvme_mq failed = %d\n", rval);
 		atomic_dec(&sp->ref_count);
 		wake_up(&sp->nvme_ls_waitq);
+		sp->free(sp);
 	}
 
 	return rval;
@@ -549,14 +555,13 @@ static void qla_nvme_remoteport_delete(struct nvme_fc_remote_port *rport)
 
 	complete(&fcport->nvme_del_done);
 
-	if (!test_bit(UNLOADING, &fcport->vha->dpc_flags)) {
-		INIT_WORK(&fcport->free_work, qlt_free_session_done);
-		schedule_work(&fcport->free_work);
-	}
+	INIT_WORK(&fcport->free_work, qlt_free_session_done);
+	schedule_work(&fcport->free_work);
 
 	fcport->nvme_flag &= ~NVME_FLAG_DELETING;
 	ql_log(ql_log_info, fcport->vha, 0x2110,
-	    "remoteport_delete of %p completed.\n", fcport);
+	    "remoteport_delete of %p %8phN completed.\n",
+	    fcport, fcport->port_name);
 }
 
 static struct nvme_fc_port_template qla_nvme_fc_transport = {
@@ -588,7 +593,8 @@ static void qla_nvme_unregister_remote_port(struct work_struct *work)
 		return;
 
 	ql_log(ql_log_warn, NULL, 0x2112,
-	    "%s: unregister remoteport on %p\n",__func__, fcport);
+	    "%s: unregister remoteport on %p %8phN\n",
+	    __func__, fcport, fcport->port_name);
 
 	nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0);
 	init_completion(&fcport->nvme_del_done);
-- 
2.12.0