nvme-fc: return non-zero status code when fails to create association

Return non-zero status code(-EIO) when needed, so re-connecting or
deleting controller will be triggered properly.

Signed-off-by: Michael Liang <mliang@purestorage.com>
Reviewed-by: Caleb Sander <csander@purestorage.com>
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>

diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index 691f2df..ad93363 100644 (file)
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -2551,6 +2551,9 @@ nvme_fc_error_recovery(struct nvme_fc_ctrl *ctrl, char *errmsg)
        if (ctrl->ctrl.state == NVME_CTRL_CONNECTING) {
                __nvme_fc_abort_outstanding_ios(ctrl, true);
                set_bit(ASSOC_FAILED, &ctrl->flags);
+               dev_warn(ctrl->ctrl.device,
+                       "NVME-FC{%d}: transport error during (re)connect\n",
+                       ctrl->cnum);
                return;
        }
 
@@ -3110,7 +3113,9 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
         */
 
        ret = nvme_enable_ctrl(&ctrl->ctrl);
-       if (ret || test_bit(ASSOC_FAILED, &ctrl->flags))
+       if (!ret && test_bit(ASSOC_FAILED, &ctrl->flags))
+               ret = -EIO;
+       if (ret)
                goto out_disconnect_admin_queue;
 
        ctrl->ctrl.max_segments = ctrl->lport->ops->max_sgl_segments;
@@ -3120,7 +3125,9 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
        nvme_unquiesce_admin_queue(&ctrl->ctrl);
 
        ret = nvme_init_ctrl_finish(&ctrl->ctrl, false);
-       if (ret || test_bit(ASSOC_FAILED, &ctrl->flags))
+       if (!ret && test_bit(ASSOC_FAILED, &ctrl->flags))
+               ret = -EIO;
+       if (ret)
                goto out_disconnect_admin_queue;
 
        /* sanity checks */
@@ -3165,7 +3172,9 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
                else
                        ret = nvme_fc_recreate_io_queues(ctrl);
        }
-       if (ret || test_bit(ASSOC_FAILED, &ctrl->flags))
+       if (!ret && test_bit(ASSOC_FAILED, &ctrl->flags))
+               ret = -EIO;
+       if (ret)
                goto out_term_aen_ops;
 
        changed = nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_LIVE);
@@ -3180,6 +3189,9 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
 out_term_aen_ops:
        nvme_fc_term_aen_ops(ctrl);
 out_disconnect_admin_queue:
+       dev_warn(ctrl->ctrl.device,
+               "NVME-FC{%d}: create_assoc failed, assoc_id %llx ret %d\n",
+               ctrl->cnum, ctrl->association_id, ret);
        /* send a Disconnect(association) LS to fc-nvme target */
        nvme_fc_xmt_disconnect_assoc(ctrl);
        spin_lock_irqsave(&ctrl->lock, flags);