providers/efa: Set remote access error for bad address status

EFA returns bad address completion status when RKEY is not registered or
does not match remote IOVA. Fix the status description and match it to
the appropriate remote access verbs error.

Reviewed-by: Michael Margolin <mrgolin@amazon.com>
Reviewed-by: Yonatan Nachum <ynachum@amazon.com>
Signed-off-by: Daniel Kranzdorf <dkkranzd@amazon.com>
Signed-off-by: Michael Margolin <mrgolin@amazon.com>

providers/efa/efa_io_defs.h

@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
 /*
- * Copyright 2018-2023 Amazon.com, Inc. or its affiliates. All rights reserved.
+ * Copyright 2018-2024 Amazon.com, Inc. or its affiliates. All rights reserved.
  */
 
 #ifndef _EFA_IO_H_
@@ -42,7 +42,7 @@ enum efa_io_comp_status {
 	EFA_IO_COMP_STATUS_LOCAL_ERROR_INVALID_LKEY = 5,
 	/* Message too long */
 	EFA_IO_COMP_STATUS_LOCAL_ERROR_BAD_LENGTH   = 6,
-	/* Destination ENI is down or does not run EFA */
+	/* RKEY not registered or does not match remote IOVA */
 	EFA_IO_COMP_STATUS_REMOTE_ERROR_BAD_ADDRESS = 7,
 	/* Connection was reset by remote side */
 	EFA_IO_COMP_STATUS_REMOTE_ERROR_ABORT       = 8,

providers/efa/verbs.c

@@ -469,6 +469,7 @@ static enum ibv_wc_status to_ibv_status(enum efa_io_comp_status status)
 	case EFA_IO_COMP_STATUS_LOCAL_ERROR_UNRESP_REMOTE:
 		return IBV_WC_RESP_TIMEOUT_ERR;
 	case EFA_IO_COMP_STATUS_REMOTE_ERROR_BAD_ADDRESS:
+		return IBV_WC_REM_ACCESS_ERR;
 	default:
 		return IBV_WC_GENERAL_ERR;
 	}