efa: Add unresponsive remote completion error

Used to indicate completion of Tx WQEs due to unresponsive remote.

Signed-off-by: Shadi Ammouri <sammouri@amazon.com>
Signed-off-by: Firas Jahjah <firasj@amazon.com>

providers/efa/efa_io_defs.h

@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
 /*
- * Copyright 2018-2020 Amazon.com, Inc. or its affiliates. All rights reserved.
+ * Copyright 2018-2021 Amazon.com, Inc. or its affiliates. All rights reserved.
  */
 
 #ifndef _EFA_IO_H_
@@ -52,6 +52,8 @@ enum efa_io_comp_status {
 	EFA_IO_COMP_STATUS_REMOTE_ERROR_BAD_LENGTH  = 11,
 	/* Unexpected status returned by responder */
 	EFA_IO_COMP_STATUS_REMOTE_ERROR_BAD_STATUS  = 12,
+	/* Unresponsive remote - detected locally */
+	EFA_IO_COMP_STATUS_LOCAL_ERROR_UNRESP_REMOTE = 13,
 };
 
 struct efa_io_tx_meta_desc {

providers/efa/verbs.c

@@ -401,6 +401,8 @@ static enum ibv_wc_status to_ibv_status(enum efa_io_comp_status status)
 		return IBV_WC_BAD_RESP_ERR;
 	case EFA_IO_COMP_STATUS_REMOTE_ERROR_BAD_LENGTH:
 		return IBV_WC_REM_INV_REQ_ERR;
+	case EFA_IO_COMP_STATUS_LOCAL_ERROR_UNRESP_REMOTE:
+		return IBV_WC_RESP_TIMEOUT_ERR;
 	case EFA_IO_COMP_STATUS_REMOTE_ERROR_BAD_ADDRESS:
 	default:
 		return IBV_WC_GENERAL_ERR;