providers/irdma: Remove enum irdma_status_code

- Replaces the use of custom irdma status codes with linux error codes.

- Removes enum irdma_status_code and header file in which
  it was defined.

- Removes the excess 'ret' variables in some functions.
  As irdma_status_code is replaced with an int, there is no need for
  two variables to hold error codes.

- Removes redundant initializations which are no longer needed.

Signed-off-by: Krzysztof Czurylo <[email protected]>
Signed-off-by: Tatyana Nikolova <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>

providers/irdma/defs.h

@@ -1,11 +1,10 @@
 /* SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB */
-/* Copyright (c) 2015 - 2021 Intel Corporation */
+/* Copyright (c) 2015 - 2023 Intel Corporation */
 #ifndef IRDMA_DEFS_H
 #define IRDMA_DEFS_H
 
 #include "osdep.h"
 
-
 #define IRDMA_QP_TYPE_IWARP 1
 #define IRDMA_QP_TYPE_UDA 2
 #define IRDMA_QP_TYPE_ROCE_RC 3
@@ -175,7 +174,7 @@
  (_ring).head = ((_ring).head + 1) % size; \
  (_retcode) = 0; \
  } else { \
- (_retcode) = IRDMA_ERR_RING_FULL; \
+ (_retcode) = ENOMEM; \
  } \
  }
 #define IRDMA_RING_MOVE_HEAD_BY_COUNT(_ring, _count, _retcode) \
@@ -186,7 +185,7 @@
  (_ring).head = ((_ring).head + (_count)) % size; \
  (_retcode) = 0; \
  } else { \
- (_retcode) = IRDMA_ERR_RING_FULL; \
+ (_retcode) = ENOMEM; \
  } \
  }
 #define IRDMA_SQ_RING_MOVE_HEAD(_ring, _retcode) \
@@ -197,7 +196,7 @@
  (_ring).head = ((_ring).head + 1) % size; \
  (_retcode) = 0; \
  } else { \
- (_retcode) = IRDMA_ERR_RING_FULL; \
+ (_retcode) = ENOMEM; \
  } \
  }
 #define IRDMA_SQ_RING_MOVE_HEAD_BY_COUNT(_ring, _count, _retcode) \
@@ -208,7 +207,7 @@
  (_ring).head = ((_ring).head + (_count)) % size; \
  (_retcode) = 0; \
  } else { \
- (_retcode) = IRDMA_ERR_RING_FULL; \
+ (_retcode) = ENOMEM; \
  } \
  }
 #define IRDMA_RING_MOVE_HEAD_BY_COUNT_NOCHECK(_ring, _count) \