a5171594fc
This PMD supports up to 4096 flow rule priority levels (0 to 4095). Applications were not allowed to use them until now due to overlaps with the default flows (e.g. MAC address, promiscuous mode). This is not an issue in isolated mode when such flows do not exist. Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com> Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
118 lines
3.7 KiB
C
118 lines
3.7 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright 2017 6WIND S.A.
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* Copyright 2017 Mellanox
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of 6WIND S.A. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef MLX4_UTILS_H_
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#define MLX4_UTILS_H_
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#include <stddef.h>
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#include <stdio.h>
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#include <rte_common.h>
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#include <rte_log.h>
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#include "mlx4.h"
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#ifndef NDEBUG
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/*
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* When debugging is enabled (NDEBUG not defined), file, line and function
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* information replace the driver name (MLX4_DRIVER_NAME) in log messages.
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*/
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/** Return the file name part of a path. */
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static inline const char *
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pmd_drv_log_basename(const char *s)
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{
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const char *n = s;
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while (*n)
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if (*(n++) == '/')
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s = n;
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return s;
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}
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#define PMD_DRV_LOG(level, ...) \
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RTE_LOG(level, PMD, \
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RTE_FMT("%s:%u: %s(): " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
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pmd_drv_log_basename(__FILE__), \
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__LINE__, \
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__func__, \
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RTE_FMT_TAIL(__VA_ARGS__,)))
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#define DEBUG(...) PMD_DRV_LOG(DEBUG, __VA_ARGS__)
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#ifndef MLX4_PMD_DEBUG_BROKEN_VERBS
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#define claim_zero(...) assert((__VA_ARGS__) == 0)
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#else /* MLX4_PMD_DEBUG_BROKEN_VERBS */
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#define claim_zero(...) \
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(void)(((__VA_ARGS__) == 0) || \
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DEBUG("Assertion `(" # __VA_ARGS__ ") == 0' failed (IGNORED)."))
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#endif /* MLX4_PMD_DEBUG_BROKEN_VERBS */
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#else /* NDEBUG */
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/*
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* Like assert(), DEBUG() becomes a no-op and claim_zero() does not perform
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* any check when debugging is disabled.
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*/
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#define PMD_DRV_LOG(level, ...) \
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RTE_LOG(level, PMD, \
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RTE_FMT(MLX4_DRIVER_NAME ": " \
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RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
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RTE_FMT_TAIL(__VA_ARGS__,)))
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#define DEBUG(...) (void)0
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#define claim_zero(...) (__VA_ARGS__)
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#endif /* NDEBUG */
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#define INFO(...) PMD_DRV_LOG(INFO, __VA_ARGS__)
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#define WARN(...) PMD_DRV_LOG(WARNING, __VA_ARGS__)
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#define ERROR(...) PMD_DRV_LOG(ERR, __VA_ARGS__)
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/** Allocate a buffer on the stack and fill it with a printf format string. */
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#define MKSTR(name, ...) \
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char name[snprintf(NULL, 0, __VA_ARGS__) + 1]; \
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\
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snprintf(name, sizeof(name), __VA_ARGS__)
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/** Generate a string out of the provided arguments. */
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#define MLX4_STR(...) # __VA_ARGS__
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/** Similar to MLX4_STR() with enclosed macros expanded first. */
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#define MLX4_STR_EXPAND(...) MLX4_STR(__VA_ARGS__)
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/* mlx4_utils.c */
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int mlx4_fd_set_non_blocking(int fd);
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#endif /* MLX4_UTILS_H_ */
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