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 extern int mlx4_logtype; 19 20 #ifndef NDEBUG 21 22 /* 23 * When debugging is enabled (NDEBUG not defined), file, line and function 24 * information replace the driver name (MLX4_DRIVER_NAME) in log messages. 25 */ 26 27 /** Return the file name part of a path. */ 28 static inline const char * 29 pmd_drv_log_basename(const char *s) 30 { 31 const char *n = s; 32 33 while (*n) 34 if (*(n++) == '/') 35 s = n; 36 return s; 37 } 38 39 #define PMD_DRV_LOG(level, ...) \ 40 rte_log(RTE_LOG_ ## level, mlx4_logtype, \ 41 RTE_FMT("%s:%u: %s(): " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \ 42 pmd_drv_log_basename(__FILE__), \ 43 __LINE__, \ 44 __func__, \ 45 RTE_FMT_TAIL(__VA_ARGS__,))) 46 #define DEBUG(...) PMD_DRV_LOG(DEBUG, __VA_ARGS__) 47 #define claim_zero(...) assert((__VA_ARGS__) == 0) 48 49 #else /* NDEBUG */ 50 51 /* 52 * Like assert(), DEBUG() becomes a no-op and claim_zero() does not perform 53 * any check when debugging is disabled. 54 */ 55 56 #define PMD_DRV_LOG(level, ...) \ 57 rte_log(RTE_LOG_ ## level, mlx4_logtype, \ 58 RTE_FMT(MLX4_DRIVER_NAME ": " \ 59 RTE_FMT_HEAD(__VA_ARGS__,) "\n", \ 60 RTE_FMT_TAIL(__VA_ARGS__,))) 61 #define DEBUG(...) (void)0 62 #define claim_zero(...) (__VA_ARGS__) 63 64 #endif /* NDEBUG */ 65 66 #define INFO(...) PMD_DRV_LOG(INFO, __VA_ARGS__) 67 #define WARN(...) PMD_DRV_LOG(WARNING, __VA_ARGS__) 68 #define ERROR(...) PMD_DRV_LOG(ERR, __VA_ARGS__) 69 70 /** Allocate a buffer on the stack and fill it with a printf format string. */ 71 #define MKSTR(name, ...) \ 72 char name[snprintf(NULL, 0, __VA_ARGS__) + 1]; \ 73 \ 74 snprintf(name, sizeof(name), __VA_ARGS__) 75 76 /** Generate a string out of the provided arguments. */ 77 #define MLX4_STR(...) # __VA_ARGS__ 78 79 /** Similar to MLX4_STR() with enclosed macros expanded first. */ 80 #define MLX4_STR_EXPAND(...) MLX4_STR(__VA_ARGS__) 81 82 /** Object description used with mlx4_mallocv() and similar functions. */ 83 struct mlx4_malloc_vec { 84 size_t align; /**< Alignment constraint (power of 2), 0 if unknown. */ 85 size_t size; /**< Object size. */ 86 void **addr; /**< Storage for allocation address. */ 87 }; 88 89 /* mlx4_utils.c */ 90 91 int mlx4_fd_set_non_blocking(int fd); 92 size_t mlx4_mallocv(const char *type, const struct mlx4_malloc_vec *vec, 93 unsigned int cnt); 94 size_t mlx4_zmallocv(const char *type, const struct mlx4_malloc_vec *vec, 95 unsigned int cnt); 96 size_t mlx4_mallocv_socket(const char *type, const struct mlx4_malloc_vec *vec, 97 unsigned int cnt, int socket); 98 size_t mlx4_zmallocv_socket(const char *type, const struct mlx4_malloc_vec *vec, 99 unsigned int cnt, int socket); 100 101 #endif /* MLX4_UTILS_H_ */ 102