--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright 2017 6WIND S.A.
+ * Copyright 2017 Mellanox
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of 6WIND S.A. nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef MLX4_UTILS_H_
+#define MLX4_UTILS_H_
+
+#include <assert.h>
+#include <stddef.h>
+#include <stdio.h>
+
+#include <rte_common.h>
+#include <rte_log.h>
+
+#include "mlx4.h"
+
+#ifndef NDEBUG
+
+/*
+ * When debugging is enabled (NDEBUG not defined), file, line and function
+ * information replace the driver name (MLX4_DRIVER_NAME) in log messages.
+ */
+
+/** Return the file name part of a path. */
+static inline const char *
+pmd_drv_log_basename(const char *s)
+{
+ const char *n = s;
+
+ while (*n)
+ if (*(n++) == '/')
+ s = n;
+ return s;
+}
+
+#define PMD_DRV_LOG(level, ...) \
+ RTE_LOG(level, PMD, \
+ RTE_FMT("%s:%u: %s(): " RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
+ pmd_drv_log_basename(__FILE__), \
+ __LINE__, \
+ __func__, \
+ RTE_FMT_TAIL(__VA_ARGS__,)))
+#define DEBUG(...) PMD_DRV_LOG(DEBUG, __VA_ARGS__)
+#ifndef MLX4_PMD_DEBUG_BROKEN_VERBS
+#define claim_zero(...) assert((__VA_ARGS__) == 0)
+#else /* MLX4_PMD_DEBUG_BROKEN_VERBS */
+#define claim_zero(...) \
+ (void)(((__VA_ARGS__) == 0) || \
+ DEBUG("Assertion `(" # __VA_ARGS__ ") == 0' failed (IGNORED)."))
+#endif /* MLX4_PMD_DEBUG_BROKEN_VERBS */
+
+#else /* NDEBUG */
+
+/*
+ * Like assert(), DEBUG() becomes a no-op and claim_zero() does not perform
+ * any check when debugging is disabled.
+ */
+
+#define PMD_DRV_LOG(level, ...) \
+ RTE_LOG(level, PMD, \
+ RTE_FMT(MLX4_DRIVER_NAME ": " \
+ RTE_FMT_HEAD(__VA_ARGS__,) "\n", \
+ RTE_FMT_TAIL(__VA_ARGS__,)))
+#define DEBUG(...) (void)0
+#define claim_zero(...) (__VA_ARGS__)
+
+#endif /* NDEBUG */
+
+#define INFO(...) PMD_DRV_LOG(INFO, __VA_ARGS__)
+#define WARN(...) PMD_DRV_LOG(WARNING, __VA_ARGS__)
+#define ERROR(...) PMD_DRV_LOG(ERR, __VA_ARGS__)
+
+/** Allocate a buffer on the stack and fill it with a printf format string. */
+#define MKSTR(name, ...) \
+ char name[snprintf(NULL, 0, __VA_ARGS__) + 1]; \
+ \
+ snprintf(name, sizeof(name), __VA_ARGS__)
+
+/** Generate a string out of the provided arguments. */
+#define MLX4_STR(...) # __VA_ARGS__
+
+/** Similar to MLX4_STR() with enclosed macros expanded first. */
+#define MLX4_STR_EXPAND(...) MLX4_STR(__VA_ARGS__)
+
+/** Object description used with mlx4_mallocv() and similar functions. */
+struct mlx4_malloc_vec {
+ size_t align; /**< Alignment constraint (power of 2), 0 if unknown. */
+ size_t size; /**< Object size. */
+ void **addr; /**< Storage for allocation address. */
+};
+
+/* mlx4_utils.c */
+
+int mlx4_fd_set_non_blocking(int fd);
+size_t mlx4_mallocv(const char *type, const struct mlx4_malloc_vec *vec,
+ unsigned int cnt);
+size_t mlx4_zmallocv(const char *type, const struct mlx4_malloc_vec *vec,
+ unsigned int cnt);
+size_t mlx4_mallocv_socket(const char *type, const struct mlx4_malloc_vec *vec,
+ unsigned int cnt, int socket);
+size_t mlx4_zmallocv_socket(const char *type, const struct mlx4_malloc_vec *vec,
+ unsigned int cnt, int socket);
+
+#endif /* MLX4_UTILS_H_ */
Code Review / deb_dpdk.git / blobdiff