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 29 #ifdef RTE_LIBRTE_MLX4_DEBUG 30 31 /* 32 * When debugging is enabled (MLX4_DEBUG is defined), file, line and function 33 * information replace the driver name (MLX4_DRIVER_NAME) in log messages. 34 */ 35 36 /** Return the file name part of a path. */ 37 static inline const char * 38 pmd_drv_log_basename(const char *s) 39 { 40 const char *n = s; 41 42 while (*n) 43 if (*(n++) == '/') 44 s = n; 45 return s; 46 } 47 48 #define PMD_DRV_LOG(level, ...) \ 49 rte_log(RTE_LOG_ ## level, mlx4_logtype, \ 50 RTE_FMT("%s:%u: %s(): " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \ 51 pmd_drv_log_basename(__FILE__), \ 52 __LINE__, \ 53 __func__, \ 54 RTE_FMT_TAIL(__VA_ARGS__,))) 55 #define MLX4_ASSERT(exp) RTE_VERIFY(exp) 56 #define claim_zero(...) MLX4_ASSERT((__VA_ARGS__) == 0) 57 58 #else /* RTE_LIBRTE_MLX4_DEBUG */ 59 60 /* 61 * Like MLX4_ASSERT(), claim_zero() does not perform 62 * any check when debugging is disabled. 63 */ 64 65 #define PMD_DRV_LOG(level, ...) \ 66 rte_log(RTE_LOG_ ## level, mlx4_logtype, \ 67 RTE_FMT(MLX4_DRIVER_NAME ": " \ 68 RTE_FMT_HEAD(__VA_ARGS__,) "\n", \ 69 RTE_FMT_TAIL(__VA_ARGS__,))) 70 #define MLX4_ASSERT(exp) RTE_ASSERT(exp) 71 #define claim_zero(...) (__VA_ARGS__) 72 73 #endif /* RTE_LIBRTE_MLX4_DEBUG */ 74 75 #define DEBUG(...) PMD_DRV_LOG(DEBUG, __VA_ARGS__) 76 #define INFO(...) PMD_DRV_LOG(INFO, __VA_ARGS__) 77 #define WARN(...) PMD_DRV_LOG(WARNING, __VA_ARGS__) 78 #define ERROR(...) PMD_DRV_LOG(ERR, __VA_ARGS__) 79 80 /** Allocate a buffer on the stack and fill it with a printf format string. */ 81 #define MKSTR(name, ...) \ 82 int mkstr_size_##name = snprintf(NULL, 0, "" __VA_ARGS__); \ 83 char name[mkstr_size_##name + 1]; \ 84 \ 85 snprintf(name, sizeof(name), "" __VA_ARGS__) 86 87 /** Generate a string out of the provided arguments. */ 88 #define MLX4_STR(...) # __VA_ARGS__ 89 90 /** Similar to MLX4_STR() with enclosed macros expanded first. */ 91 #define MLX4_STR_EXPAND(...) MLX4_STR(__VA_ARGS__) 92 93 /** Object description used with mlx4_mallocv() and similar functions. */ 94 struct mlx4_malloc_vec { 95 size_t align; /**< Alignment constraint (power of 2), 0 if unknown. */ 96 size_t size; /**< Object size. */ 97 void **addr; /**< Storage for allocation address. */ 98 }; 99 100 /* mlx4_utils.c */ 101 102 int mlx4_fd_set_non_blocking(int fd); 103 size_t mlx4_mallocv(const char *type, const struct mlx4_malloc_vec *vec, 104 unsigned int cnt); 105 size_t mlx4_zmallocv(const char *type, const struct mlx4_malloc_vec *vec, 106 unsigned int cnt); 107 size_t mlx4_mallocv_socket(const char *type, const struct mlx4_malloc_vec *vec, 108 unsigned int cnt, int socket); 109 size_t mlx4_zmallocv_socket(const char *type, const struct mlx4_malloc_vec *vec, 110 unsigned int cnt, int socket); 111 112 #endif /* MLX4_UTILS_H_ */ 113