+#define MLX5_SYSTEM_LOG_DIR "/var/log"
+/**
+ * Dump debug information to log file.
+ *
+ * @param fname
+ * The file name.
+ * @param hex_title
+ * If not NULL this string is printed as a header to the output
+ * and the output will be in hexadecimal view.
+ * @param buf
+ * This is the buffer address to print out.
+ * @param len
+ * The number of bytes to dump out.
+ */
+void
+mlx5_dump_debug_information(const char *fname, const char *hex_title,
+ const void *buf, unsigned int hex_len)
+{
+ FILE *fd;
+
+ MKSTR(path, "%s/%s", MLX5_SYSTEM_LOG_DIR, fname);
+ fd = fopen(path, "a+");
+ if (!fd) {
+ DRV_LOG(WARNING, "cannot open %s for debug dump\n",
+ path);
+ MKSTR(path2, "./%s", fname);
+ fd = fopen(path2, "a+");
+ if (!fd) {
+ DRV_LOG(ERR, "cannot open %s for debug dump\n",
+ path2);
+ return;
+ }
+ DRV_LOG(INFO, "New debug dump in file %s\n", path2);
+ } else {
+ DRV_LOG(INFO, "New debug dump in file %s\n", path);
+ }
+ if (hex_title)
+ rte_hexdump(fd, hex_title, buf, hex_len);
+ else
+ fprintf(fd, "%s", (const char *)buf);
+ fprintf(fd, "\n\n\n");
+ fclose(fd);
+}
+