1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright 2017 6WIND S.A. 3 * Copyright 2017 Mellanox Technologies, Ltd 4 */ 5 6 #ifndef MLX4_UTILS_H_ 7 #define MLX4_UTILS_H_ 8 9 #include <stddef.h> 10 #include <stdio.h> 11 12 #include <rte_common.h> 13 #include <rte_log.h> 14 15 #include "mlx4.h" 16 17 /* 18 * Compilation workaround for PPC64 when AltiVec is fully enabled, e.g. std=c11. 19 * Otherwise there would be a type conflict between stdbool and altivec. 20 */ 21 #if defined(__PPC64__) && !defined(__APPLE_ALTIVEC__) 22 #undef bool 23 /* redefine as in stdbool.h */ 24 #define bool _Bool 25 #endif 26 27 extern int mlx4_logtype; 28 #define RTE_LOGTYPE_MLX4 mlx4_logtype 29 30 #ifdef RTE_LIBRTE_MLX4_DEBUG 31 32 /* 33 * When debugging is enabled (MLX4_DEBUG is defined), file, line and function 34 * information replace the driver name (MLX4_DRIVER_NAME) in log messages. 35 */ 36 37 /** Return the file name part of a path. */ 38 static inline const char * 39 pmd_drv_log_basename(const char *s) 40 { 41 const char *n = s; 42 43 while (*n) 44 if (*(n++) == '/') 45 s = n; 46 return s; 47 } 48 49 #define PMD_DRV_LOG(level, ...) \ 50 RTE_LOG_LINE_PREFIX(level, MLX4, "%s:%u: %s(): ", \ 51 pmd_drv_log_basename(__FILE__) RTE_LOG_COMMA __LINE__ RTE_LOG_COMMA __func__, \ 52 __VA_ARGS__) 53 #define MLX4_ASSERT(exp) RTE_VERIFY(exp) 54 #define claim_zero(...) MLX4_ASSERT((__VA_ARGS__) == 0) 55 56 #else /* RTE_LIBRTE_MLX4_DEBUG */ 57 58 /* 59 * Like MLX4_ASSERT(), claim_zero() does not perform 60 * any check when debugging is disabled. 61 */ 62 63 #define PMD_DRV_LOG(level, ...) \ 64 RTE_LOG_LINE(level, MLX4, MLX4_DRIVER_NAME ": " __VA_ARGS__) 65 #define MLX4_ASSERT(exp) RTE_ASSERT(exp) 66 #define claim_zero(...) (__VA_ARGS__) 67 68 #endif /* RTE_LIBRTE_MLX4_DEBUG */ 69 70 #define DEBUG(...) PMD_DRV_LOG(DEBUG, __VA_ARGS__) 71 #define INFO(...) PMD_DRV_LOG(INFO, __VA_ARGS__) 72 #define WARN(...) PMD_DRV_LOG(WARNING, __VA_ARGS__) 73 #define ERROR(...) PMD_DRV_LOG(ERR, __VA_ARGS__) 74 75 /** Allocate a buffer on the stack and fill it with a printf format string. */ 76 #define MKSTR(name, ...) \ 77 int mkstr_size_##name = snprintf(NULL, 0, "" __VA_ARGS__); \ 78 char name[mkstr_size_##name + 1]; \ 79 \ 80 snprintf(name, sizeof(name), "" __VA_ARGS__) 81 82 /** Generate a string out of the provided arguments. */ 83 #define MLX4_STR(...) # __VA_ARGS__ 84 85 /** Similar to MLX4_STR() with enclosed macros expanded first. */ 86 #define MLX4_STR_EXPAND(...) MLX4_STR(__VA_ARGS__) 87 88 /** Object description used with mlx4_mallocv() and similar functions. */ 89 struct mlx4_malloc_vec { 90 size_t align; /**< Alignment constraint (power of 2), 0 if unknown. */ 91 size_t size; /**< Object size. */ 92 void **addr; /**< Storage for allocation address. */ 93 }; 94 95 /* mlx4_utils.c */ 96 97 int mlx4_fd_set_non_blocking(int fd); 98 size_t mlx4_mallocv(const char *type, const struct mlx4_malloc_vec *vec, 99 unsigned int cnt); 100 size_t mlx4_zmallocv(const char *type, const struct mlx4_malloc_vec *vec, 101 unsigned int cnt); 102 size_t mlx4_mallocv_socket(const char *type, const struct mlx4_malloc_vec *vec, 103 unsigned int cnt, int socket); 104 size_t mlx4_zmallocv_socket(const char *type, const struct mlx4_malloc_vec *vec, 105 unsigned int cnt, int socket); 106 107 #endif /* MLX4_UTILS_H_ */ 108