2 * This file is provided under a dual BSD/GPLv2 license. When using or
3 * redistributing this file, you may do so under either license.
7 * Copyright 2013-2016 Freescale Semiconductor Inc.
8 * Copyright (c) 2016 NXP.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions are met:
12 * * Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * * Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * * Neither the name of the above-listed copyright holders nor the
18 * names of any contributors may be used to endorse or promote products
19 * derived from this software without specific prior written permission.
23 * ALTERNATIVELY, this software may be distributed under the terms of the
24 * GNU General Public License ("GPL") as published by the Free Software
25 * Foundation, either version 2 of that License or (at your option) any
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
29 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
32 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38 * POSSIBILITY OF SUCH DAMAGE.
41 #ifndef __RTA_COMPAT_H__
42 #define __RTA_COMPAT_H__
52 #include <rte_byteorder.h>
54 #ifndef __BYTE_ORDER__
55 #error "Undefined endianness"
59 #error Environment not supported!
62 #ifndef __always_inline
63 #define __always_inline (inline __attribute__((always_inline)))
66 #ifndef __always_unused
67 #define __always_unused __attribute__((unused))
70 #ifndef __maybe_unused
71 #define __maybe_unused __attribute__((unused))
74 #if defined(__GLIBC__) && !defined(pr_debug)
75 #if !defined(SUPPRESS_PRINTS) && defined(RTA_DEBUG)
76 #define pr_debug(fmt, ...) \
77 RTE_LOG(DEBUG, PMD, "%s(): " fmt "\n", __func__, ##__VA_ARGS__)
79 #define pr_debug(fmt, ...) do { } while (0)
83 #if defined(__GLIBC__) && !defined(pr_err)
84 #if !defined(SUPPRESS_PRINTS)
85 #define pr_err(fmt, ...) \
86 RTE_LOG(ERR, PMD, "%s(): " fmt "\n", __func__, ##__VA_ARGS__)
88 #define pr_err(fmt, ...) do { } while (0)
92 #if defined(__GLIBC__) && !defined(pr_warn)
93 #if !defined(SUPPRESS_PRINTS)
94 #define pr_warn(fmt, ...) \
95 RTE_LOG(WARNING, PMD, "%s(): " fmt "\n", __func__, ##__VA_ARGS__)
97 #define pr_warn(fmt, ...) do { } while (0)
102 * ARRAY_SIZE - returns the number of elements in an array
106 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
110 #define ALIGN(x, a) (((x) + ((__typeof__(x))(a) - 1)) & \
111 ~((__typeof__(x))(a) - 1))
115 #define BIT(nr) (1UL << (nr))
118 #ifndef upper_32_bits
120 * upper_32_bits - return bits 32-63 of a number
121 * @n: the number we're accessing
123 #define upper_32_bits(n) ((uint32_t)(((n) >> 16) >> 16))
126 #ifndef lower_32_bits
128 * lower_32_bits - return bits 0-31 of a number
129 * @n: the number we're accessing
131 #define lower_32_bits(n) ((uint32_t)(n))
134 /* Use Linux naming convention */
136 #define swab16(x) rte_bswap16(x)
137 #define swab32(x) rte_bswap32(x)
138 #define swab64(x) rte_bswap64(x)
139 /* Define cpu_to_be32 macro if not defined in the build environment */
140 #if !defined(cpu_to_be32)
141 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
142 #define cpu_to_be32(x) (x)
144 #define cpu_to_be32(x) swab32(x)
147 /* Define cpu_to_le32 macro if not defined in the build environment */
148 #if !defined(cpu_to_le32)
149 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
150 #define cpu_to_le32(x) swab32(x)
152 #define cpu_to_le32(x) (x)
157 #endif /* __RTA_COMPAT_H__ */