1 files changed, 24 insertions, 35 deletions

diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c
index fa32c1216409..6b4e253b9347 100644
--- a/drivers/nvme/host/fabrics.c
+++ b/drivers/nvme/host/fabrics.c
@@ -536,38 +536,40 @@ static struct nvmf_transport_ops *nvmf_lookup_transport(
 	return NULL;
 }
 
-blk_status_t nvmf_check_if_ready(struct nvme_ctrl *ctrl, struct request *rq,
-		bool queue_live, bool is_connected)
+/*
+ * For something we're not in a state to send to the device the default action
+ * is to busy it and retry it after the controller state is recovered.  However,
+ * anything marked for failfast or nvme multipath is immediately failed.
+ *
+ * Note: commands used to initialize the controller will be marked for failfast.
+ * Note: nvme cli/ioctl commands are marked for failfast.
+ */
+blk_status_t nvmf_fail_nonready_command(struct request *rq)
 {
-	struct nvme_command *cmd = nvme_req(rq)->cmd;
+	if (!blk_noretry_request(rq) && !(rq->cmd_flags & REQ_NVME_MPATH))
+		return BLK_STS_RESOURCE;
+	nvme_req(rq)->status = NVME_SC_ABORT_REQ;
+	return BLK_STS_IOERR;
+}
+EXPORT_SYMBOL_GPL(nvmf_fail_nonready_command);
 
-	if (likely(ctrl->state == NVME_CTRL_LIVE && is_connected))
-		return BLK_STS_OK;
+bool __nvmf_check_ready(struct nvme_ctrl *ctrl, struct request *rq,
+		bool queue_live)
+{
+	struct nvme_command *cmd = nvme_req(rq)->cmd;
 
 	switch (ctrl->state) {
 	case NVME_CTRL_NEW:
 	case NVME_CTRL_CONNECTING:
 	case NVME_CTRL_DELETING:
 		/*
-		 * This is the case of starting a new or deleting an association
-		 * but connectivity was lost before it was fully created or torn
-		 * down. We need to error the commands used to initialize the
-		 * controller so the reconnect can go into a retry attempt.  The
-		 * commands should all be marked REQ_FAILFAST_DRIVER, which will
-		 * hit the reject path below. Anything else will be queued while
-		 * the state settles.
-		 */
-		if (!is_connected)
-			break;
-
-		/*
 		 * If queue is live, allow only commands that are internally
 		 * generated pass through.  These are commands on the admin
 		 * queue to initialize the controller. This will reject any
 		 * ioctl admin cmds received while initializing.
 		 */
 		if (queue_live && !(nvme_req(rq)->flags & NVME_REQ_USERCMD))
-			return BLK_STS_OK;
+			return true;
 
 		/*
 		 * If the queue is not live, allow only a connect command.  This
@@ -577,26 +579,13 @@ blk_status_t nvmf_check_if_ready(struct nvme_ctrl *ctrl, struct request *rq,
 		if (!queue_live && blk_rq_is_passthrough(rq) &&
 		     cmd->common.opcode == nvme_fabrics_command &&
 		     cmd->fabrics.fctype == nvme_fabrics_type_connect)
-			return BLK_STS_OK;
-		break;
+			return true;
+		return false;
 	default:
-		break;
+		return false;
 	}
-
-	/*
-	 * Any other new io is something we're not in a state to send to the
-	 * device.  Default action is to busy it and retry it after the
-	 * controller state is recovered. However, anything marked for failfast
-	 * or nvme multipath is immediately failed.  Note: commands used to
-	 * initialize the controller will be marked for failfast.
-	 * Note: nvme cli/ioctl commands are marked for failfast.
-	 */
-	if (!blk_noretry_request(rq) && !(rq->cmd_flags & REQ_NVME_MPATH))
-		return BLK_STS_RESOURCE;
-	nvme_req(rq)->status = NVME_SC_ABORT_REQ;
-	return BLK_STS_IOERR;
 }
-EXPORT_SYMBOL_GPL(nvmf_check_if_ready);
+EXPORT_SYMBOL_GPL(__nvmf_check_ready);
 
 static const match_table_t opt_tokens = {
 	{ NVMF_OPT_TRANSPORT,		"transport=%s"		},