scsi: qla2xxx: on session delete, return nvme cmd

 - on session delete or chip reset, reject all NVME commands.

 - on NVME command submission error, free srb resource.

Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c
index b43c627..8b3cb0f 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_nvme.c
+++ b/drivers/scsi/qla2xxx/qla_nvme.c
@@ -239,8 +239,16 @@ static int qla_nvme_ls_req(struct nvme_fc_local_port *lport,
        struct qla_hw_data *ha;
        srb_t           *sp;
 
+
+       if (!fcport || (fcport && fcport->deleted))
+               return rval;
+
        vha = fcport->vha;
        ha = vha->hw;
+
+       if (!ha->flags.fw_started)
+               return rval;
+
        /* Alloc SRB structure */
        sp = qla2x00_get_sp(vha, fcport, GFP_ATOMIC);
        if (!sp)
@@ -272,6 +280,7 @@ 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;
        }
 
@@ -486,11 +495,11 @@ static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
 
        fcport = qla_rport->fcport;
 
-       vha = fcport->vha;
-
-       if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
+       if (!qpair || !fcport || (qpair && !qpair->fw_started) ||
+           (fcport && fcport->deleted))
                return rval;
 
+       vha = fcport->vha;
        /*
         * If we know the dev is going away while the transport is still sending
         * IO's return busy back to stall the IO Q.  This happens when the
@@ -523,6 +532,7 @@ 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 +559,13 @@ 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 +597,8 @@ 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);