drivers/s390/net/ctcm_dbug.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  *      Copyright IBM Corp. 2001, 2007
   4  *      Authors:        Peter Tiedemann (ptiedem@de.ibm.com)
   5  *
   6  */
   7
   8 #ifndef _CTCM_DBUG_H_
   9 #define _CTCM_DBUG_H_
  10
  11 /*
  12  * Debug Facility stuff
  13  */
  14
  15 #include <asm/debug.h>
  16
  17 #ifdef DEBUG
  18  #define do_debug 1
  19 #else
  20  #define do_debug 0
  21 #endif
  22 #ifdef DEBUGCCW
  23  #define do_debug_ccw 1
  24  #define DEBUGDATA 1
  25 #else
  26  #define do_debug_ccw 0
  27 #endif
  28 #ifdef DEBUGDATA
  29  #define do_debug_data 1
  30 #else
  31  #define do_debug_data 0
  32 #endif
  33
  34 /* define dbf debug levels similar to kernel msg levels */
  35 #define CTC_DBF_ALWAYS  0       /* always print this                    */
  36 #define CTC_DBF_EMERG   0       /* system is unusable                   */
  37 #define CTC_DBF_ALERT   1       /* action must be taken immediately     */
  38 #define CTC_DBF_CRIT    2       /* critical conditions                  */
  39 #define CTC_DBF_ERROR   3       /* error conditions                     */
  40 #define CTC_DBF_WARN    4       /* warning conditions                   */
  41 #define CTC_DBF_NOTICE  5       /* normal but significant condition     */
  42 #define CTC_DBF_INFO    5       /* informational                        */
  43 #define CTC_DBF_DEBUG   6       /* debug-level messages                 */
  44
  45 enum ctcm_dbf_names {
  46         CTCM_DBF_SETUP,
  47         CTCM_DBF_ERROR,
  48         CTCM_DBF_TRACE,
  49         CTCM_DBF_MPC_SETUP,
  50         CTCM_DBF_MPC_ERROR,
  51         CTCM_DBF_MPC_TRACE,
  52         CTCM_DBF_INFOS  /* must be last element */
  53 };
  54
  55 struct ctcm_dbf_info {
  56         char name[DEBUG_MAX_NAME_LEN];
  57         int pages;
  58         int areas;
  59         int len;
  60         int level;
  61         debug_info_t *id;
  62 };
  63
  64 extern struct ctcm_dbf_info ctcm_dbf[CTCM_DBF_INFOS];
  65
  66 int ctcm_register_dbf_views(void);
  67 void ctcm_unregister_dbf_views(void);
  68 void ctcm_dbf_longtext(enum ctcm_dbf_names dbf_nix, int level, char *text, ...);
  69
  70 static inline const char *strtail(const char *s, int n)
  71 {
  72         int l = strlen(s);
  73         return (l > n) ? s + (l - n) : s;
  74 }
  75
  76 #define CTCM_FUNTAIL strtail((char *)__func__, 16)
  77
  78 #define CTCM_DBF_TEXT(name, level, text) \
  79         do { \
  80                 debug_text_event(ctcm_dbf[CTCM_DBF_##name].id, level, text); \
  81         } while (0)
  82
  83 #define CTCM_DBF_HEX(name, level, addr, len) \
  84         do { \
  85                 debug_event(ctcm_dbf[CTCM_DBF_##name].id, \
  86                                         level, (void *)(addr), len); \
  87         } while (0)
  88
  89 #define CTCM_DBF_TEXT_(name, level, text...) \
  90         ctcm_dbf_longtext(CTCM_DBF_##name, level, text)
  91
  92 /*
  93  * cat : one of {setup, mpc_setup, trace, mpc_trace, error, mpc_error}.
  94  * dev : netdevice with valid name field.
  95  * text: any text string.
  96  */
  97 #define CTCM_DBF_DEV_NAME(cat, dev, text) \
  98         do { \
  99                 CTCM_DBF_TEXT_(cat, CTC_DBF_INFO, "%s(%s) :- %s", \
 100                         CTCM_FUNTAIL, dev->name, text); \
 101         } while (0)
 102
 103 #define MPC_DBF_DEV_NAME(cat, dev, text) \
 104         do { \
 105                 CTCM_DBF_TEXT_(MPC_##cat, CTC_DBF_INFO, "%s(%s) := %s", \
 106                         CTCM_FUNTAIL, dev->name, text); \
 107         } while (0)
 108
 109 #define CTCMY_DBF_DEV_NAME(cat, dev, text) \
 110         do { \
 111                 if (IS_MPCDEV(dev)) \
 112                         MPC_DBF_DEV_NAME(cat, dev, text); \
 113                 else \
 114                         CTCM_DBF_DEV_NAME(cat, dev, text); \
 115         } while (0)
 116
 117 /*
 118  * cat : one of {setup, mpc_setup, trace, mpc_trace, error, mpc_error}.
 119  * dev : netdevice.
 120  * text: any text string.
 121  */
 122 #define CTCM_DBF_DEV(cat, dev, text) \
 123         do { \
 124                 CTCM_DBF_TEXT_(cat, CTC_DBF_INFO, "%s(%p) :-: %s", \
 125                         CTCM_FUNTAIL, dev, text); \
 126         } while (0)
 127
 128 #define MPC_DBF_DEV(cat, dev, text) \
 129         do { \
 130                 CTCM_DBF_TEXT_(MPC_##cat, CTC_DBF_INFO, "%s(%p) :=: %s", \
 131                         CTCM_FUNTAIL, dev, text); \
 132         } while (0)
 133
 134 #define CTCMY_DBF_DEV(cat, dev, text) \
 135         do { \
 136                 if (IS_MPCDEV(dev)) \
 137                         MPC_DBF_DEV(cat, dev, text); \
 138                 else \
 139                         CTCM_DBF_DEV(cat, dev, text); \
 140         } while (0)
 141
 142 #endif