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 <assert.h> 10 #include <stddef.h> 11 #include <stdio.h> 12 13 #include <rte_common.h> 14 #include <rte_log.h> 15 16 #include "mlx4.h" 17 18 /* 19 * Compilation workaround for PPC64 when AltiVec is fully enabled, e.g. std=c11. 20 * Otherwise there would be a type conflict between stdbool and altivec. 21 */ 22 #if defined(__PPC64__) && !defined(__APPLE_ALTIVEC__) 23 #undef bool 24 /* redefine as in stdbool.h */ 25 #define bool _Bool 26 #endif 27 28 extern int mlx4_logtype; 29 30 #ifndef NDEBUG 31 32 /* 33 * When debugging is enabled (NDEBUG not 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(RTE_LOG_ ## level, mlx4_logtype, \ 51 RTE_FMT("%s:%u: %s(): " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \ 52 pmd_drv_log_basename(__FILE__), \ 53 __LINE__, \ 54 __func__, \ 55 RTE_FMT_TAIL(__VA_ARGS__,))) 56 #define DEBUG(...) PMD_DRV_LOG(DEBUG, __VA_ARGS__) 57 #define claim_zero(...) assert((__VA_ARGS__) == 0) 58 59 #else /* NDEBUG */ 60 61 /* 62 * Like assert(), DEBUG() becomes a no-op and claim_zero() does not perform 63 * any check when debugging is disabled. 64 */ 65 66 #define PMD_DRV_LOG(level, ...) \ 67 rte_log(RTE_LOG_ ## level, mlx4_logtype, \ 68 RTE_FMT(MLX4_DRIVER_NAME ": " \ 69 RTE_FMT_HEAD(__VA_ARGS__,) "\n", \ 70 RTE_FMT_TAIL(__VA_ARGS__,))) 71 #define DEBUG(...) (void)0 72 #define claim_zero(...) (__VA_ARGS__) 73 74 #endif /* NDEBUG */ 75 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 char name[snprintf(NULL, 0, __VA_ARGS__) + 1]; \ 83 \ 84 snprintf(name, sizeof(name), __VA_ARGS__) 85 86 /** Generate a string out of the provided arguments. */ 87 #define MLX4_STR(...) # __VA_ARGS__ 88 89 /** Similar to MLX4_STR() with enclosed macros expanded first. */ 90 #define MLX4_STR_EXPAND(...) MLX4_STR(__VA_ARGS__) 91 92 /** Object description used with mlx4_mallocv() and similar functions. */ 93 struct mlx4_malloc_vec { 94 size_t align; /**< Alignment constraint (power of 2), 0 if unknown. */ 95 size_t size; /**< Object size. */ 96 void **addr; /**< Storage for allocation address. */ 97 }; 98 99 /* mlx4_utils.c */ 100 101 int mlx4_fd_set_non_blocking(int fd); 102 size_t mlx4_mallocv(const char *type, const struct mlx4_malloc_vec *vec, 103 unsigned int cnt); 104 size_t mlx4_zmallocv(const char *type, const struct mlx4_malloc_vec *vec, 105 unsigned int cnt); 106 size_t mlx4_mallocv_socket(const char *type, const struct mlx4_malloc_vec *vec, 107 unsigned int cnt, int socket); 108 size_t mlx4_zmallocv_socket(const char *type, const struct mlx4_malloc_vec *vec, 109 unsigned int cnt, int socket); 110 111 #endif /* MLX4_UTILS_H_ */ 112