IB/srp: Process all error completions

If the RDMA RC connection is closed, tell the SCSI mid-layer to
terminate all pending commands instead of only the first.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>

drivers/infiniband/ulp/srp/ib_srp.c

@@ -1274,8 +1274,12 @@ static void srp_handle_qp_err(enum ib_wc_status wc_status,
 			      enum ib_wc_opcode wc_opcode,
 			      struct srp_target_port *target)
 {
-	shost_printk(KERN_ERR, target->scsi_host, PFX "failed %s status %d\n",
-		     wc_opcode & IB_WC_RECV ? "receive" : "send", wc_status);
+	if (!target->qp_in_error) {
+		shost_printk(KERN_ERR, target->scsi_host,
+			     PFX "failed %s status %d\n",
+			     wc_opcode & IB_WC_RECV ? "receive" : "send",
+			     wc_status);
+	}
 	target->qp_in_error = true;
 }
 
@@ -1290,7 +1294,6 @@ static void srp_recv_completion(struct ib_cq *cq, void *target_ptr)
 			srp_handle_recv(target, &wc);
 		} else {
 			srp_handle_qp_err(wc.status, wc.opcode, target);
-			break;
 		}
 	}
 }
@@ -1307,7 +1310,6 @@ static void srp_send_completion(struct ib_cq *cq, void *target_ptr)
 			list_add(&iu->list, &target->free_tx);
 		} else {
 			srp_handle_qp_err(wc.status, wc.opcode, target);
-			break;
 		}
 	}
 }