88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
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/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright 2019 Mellanox Technologies, Ltd
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*/
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#ifndef RTE_PMD_MLX5_COMMON_H_
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#define RTE_PMD_MLX5_COMMON_H_
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#include <assert.h>
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#include <rte_log.h>
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/*
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* Helper macros to work around __VA_ARGS__ limitations in a C99 compliant
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* manner.
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*/
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#define PMD_DRV_LOG_STRIP(a, b) a
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#define PMD_DRV_LOG_OPAREN (
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#define PMD_DRV_LOG_CPAREN )
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#define PMD_DRV_LOG_COMMA ,
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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, type, name, ...) \
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rte_log(RTE_LOG_ ## level, \
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type, \
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RTE_FMT(name ": " \
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RTE_FMT_HEAD(__VA_ARGS__,), \
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RTE_FMT_TAIL(__VA_ARGS__,)))
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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 (MLX5_DRIVER_NAME) in log messages.
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*/
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#ifndef NDEBUG
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#define PMD_DRV_LOG__(level, type, name, ...) \
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PMD_DRV_LOG___(level, type, name, "%s:%u: %s(): " __VA_ARGS__)
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#define PMD_DRV_LOG_(level, type, name, s, ...) \
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PMD_DRV_LOG__(level, type, name,\
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s "\n" PMD_DRV_LOG_COMMA \
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pmd_drv_log_basename(__FILE__) PMD_DRV_LOG_COMMA \
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__LINE__ PMD_DRV_LOG_COMMA \
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__func__, \
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__VA_ARGS__)
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#else /* NDEBUG */
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#define PMD_DRV_LOG__(level, type, name, ...) \
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PMD_DRV_LOG___(level, type, name, __VA_ARGS__)
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#define PMD_DRV_LOG_(level, type, name, s, ...) \
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PMD_DRV_LOG__(level, type, name, s "\n", __VA_ARGS__)
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#endif /* NDEBUG */
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/* claim_zero() does not perform any check when debugging is disabled. */
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#ifndef NDEBUG
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#define DEBUG(...) DRV_LOG(DEBUG, __VA_ARGS__)
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#define claim_zero(...) assert((__VA_ARGS__) == 0)
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#define claim_nonzero(...) assert((__VA_ARGS__) != 0)
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#else /* NDEBUG */
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#define DEBUG(...) (void)0
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#define claim_zero(...) (__VA_ARGS__)
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#define claim_nonzero(...) (__VA_ARGS__)
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#endif /* NDEBUG */
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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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int mkstr_size_##name = snprintf(NULL, 0, "" __VA_ARGS__); \
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char name[mkstr_size_##name + 1]; \
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\
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snprintf(name, sizeof(name), "" __VA_ARGS__)
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#endif /* RTE_PMD_MLX5_COMMON_H_ */
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