1 /*- 2 * Copyright (c) 2010 Isilon Systems, Inc. 3 * Copyright (c) 2010 iX Systems, Inc. 4 * Copyright (c) 2010 Panasas, Inc. 5 * Copyright (c) 2013-2017 Mellanox Technologies, Ltd. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice unmodified, this list of conditions, and the following 13 * disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 #ifndef _LINUXKPI_LINUX_PRINTK_H_ 30 #define _LINUXKPI_LINUX_PRINTK_H_ 31 32 #include <linux/kernel.h> 33 34 /* GID printing macros */ 35 #define GID_PRINT_FMT "%.4x:%.4x:%.4x:%.4x:%.4x:%.4x:%.4x:%.4x" 36 #define GID_PRINT_ARGS(gid_raw) htons(((u16 *)gid_raw)[0]), htons(((u16 *)gid_raw)[1]),\ 37 htons(((u16 *)gid_raw)[2]), htons(((u16 *)gid_raw)[3]),\ 38 htons(((u16 *)gid_raw)[4]), htons(((u16 *)gid_raw)[5]),\ 39 htons(((u16 *)gid_raw)[6]), htons(((u16 *)gid_raw)[7]) 40 41 enum { 42 DUMP_PREFIX_NONE, 43 DUMP_PREFIX_ADDRESS, 44 DUMP_PREFIX_OFFSET 45 }; 46 47 int __lkpi_hexdump_printf(void *, const char *, ...) __printflike(2, 3); 48 49 void lkpi_hex_dump(int(*)(void *, const char *, ...), void *arg1, 50 const char *, const char *, const int, const int, const int, 51 const void *, size_t, const bool, const bool); 52 53 #define hex_dump_to_buffer(buf, len, rowsize, groupsize, linebuf, linebuflen, ascii) \ 54 lkpi_hex_dump_to_buffer((buf), (len), (rowsize), (groupsize), (linebuf), (linebuflen), (ascii)) 55 56 int lkpi_hex_dump_to_buffer(const void *buf, size_t len, int rowsize, 57 int groupsize, char *linebuf, size_t linebuflen, bool ascii); 58 59 static inline void 60 print_hex_dump(const char *level, const char *prefix_str, 61 const int prefix_type, const int rowsize, const int groupsize, 62 const void *buf, size_t len, const bool ascii) 63 { 64 lkpi_hex_dump(__lkpi_hexdump_printf, NULL, level, prefix_str, prefix_type, 65 rowsize, groupsize, buf, len, ascii, true); 66 } 67 68 static inline void 69 print_hex_dump_bytes(const char *prefix_str, const int prefix_type, 70 const void *buf, size_t len) 71 { 72 print_hex_dump(NULL, prefix_str, prefix_type, 16, 1, buf, len, 0); 73 } 74 75 #define printk_ratelimit() ({ \ 76 static linux_ratelimit_t __ratelimited; \ 77 linux_ratelimited(&__ratelimited); \ 78 }) 79 80 #define printk_ratelimited(...) ({ \ 81 bool __retval = printk_ratelimit(); \ 82 if (__retval) \ 83 printk(__VA_ARGS__); \ 84 __retval; \ 85 }) 86 87 #define pr_err_ratelimited(fmt, ...) \ 88 printk_ratelimited(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) 89 90 #define print_hex_dump_debug(...) \ 91 print_hex_dump(KERN_DEBUG, ##__VA_ARGS__) 92 93 #define pr_info_ratelimited(fmt, ...) \ 94 printk_ratelimited(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__) 95 96 #define no_printk(fmt, ...) \ 97 ({ \ 98 if (0) \ 99 printk(pr_fmt(fmt), ##__VA_ARGS__); \ 100 0; \ 101 }) 102 103 #define FW_BUG "[Firmware Bug]: " 104 #define FW_WARN "[Firmware Warn]: " 105 #define FW_INFO "[Firmware Info]: " 106 #define HW_ERR "[Hardware Error]: " 107 #define DEPRECATED "[Deprecated]: " 108 109 #endif /* _LINUXKPI_LINUX_PRINTK_H_ */ 110