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Diffstat (limited to 'drivers/infiniband/hw/efa/efa_common_defs.h')
-rw-r--r--drivers/infiniband/hw/efa/efa_common_defs.h13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/efa/efa_common_defs.h b/drivers/infiniband/hw/efa/efa_common_defs.h
index c559ec08898e..90af1c82c9c6 100644
--- a/drivers/infiniband/hw/efa/efa_common_defs.h
+++ b/drivers/infiniband/hw/efa/efa_common_defs.h
@@ -1,14 +1,25 @@
/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
/*
- * Copyright 2018-2019 Amazon.com, Inc. or its affiliates. All rights reserved.
+ * Copyright 2018-2020 Amazon.com, Inc. or its affiliates. All rights reserved.
*/
#ifndef _EFA_COMMON_H_
#define _EFA_COMMON_H_
+#include <linux/bitfield.h>
+
#define EFA_COMMON_SPEC_VERSION_MAJOR 2
#define EFA_COMMON_SPEC_VERSION_MINOR 0
+#define EFA_GET(ptr, mask) FIELD_GET(mask##_MASK, *(ptr))
+
+#define EFA_SET(ptr, mask, value) \
+ ({ \
+ typeof(ptr) _ptr = ptr; \
+ *_ptr = (*_ptr & ~(mask##_MASK)) | \
+ FIELD_PREP(mask##_MASK, value); \
+ })
+
struct efa_common_mem_addr {
u32 mem_addr_low;