LXR linux/drivers/s390/net/ctcm

   1/*
   2 *      drivers/s390/net/ctcm_dbug.c
   3 *
   4 *      Copyright IBM Corp. 2001, 2007
   5 *      Authors:        Peter Tiedemann (ptiedem@de.ibm.com)
   6 *
   7 */
   8
   9#include <linux/stddef.h>
  10#include <linux/string.h>
  11#include <linux/kernel.h>
  12#include <linux/errno.h>
  13#include <linux/slab.h>
  14#include <linux/ctype.h>
  15#include <linux/sysctl.h>
  16#include <linux/module.h>
  17#include <linux/init.h>
  18#include <linux/fs.h>
  19#include <linux/debugfs.h>
  20#include "ctcm_dbug.h"
  21
  22/*
  23 * Debug Facility Stuff
  24 */
  25
  26struct ctcm_dbf_info ctcm_dbf[CTCM_DBF_INFOS] = {
  27        [CTCM_DBF_SETUP]     = {"ctc_setup", 8, 1, 64, CTC_DBF_INFO, NULL},
  28        [CTCM_DBF_ERROR]     = {"ctc_error", 8, 1, 64, CTC_DBF_ERROR, NULL},
  29        [CTCM_DBF_TRACE]     = {"ctc_trace", 8, 1, 64, CTC_DBF_ERROR, NULL},
  30        [CTCM_DBF_MPC_SETUP] = {"mpc_setup", 8, 1, 80, CTC_DBF_INFO, NULL},
  31        [CTCM_DBF_MPC_ERROR] = {"mpc_error", 8, 1, 80, CTC_DBF_ERROR, NULL},
  32        [CTCM_DBF_MPC_TRACE] = {"mpc_trace", 8, 1, 80, CTC_DBF_ERROR, NULL},
  33};
  34
  35void ctcm_unregister_dbf_views(void)
  36{
  37        int x;
  38        for (x = 0; x < CTCM_DBF_INFOS; x++) {
  39                debug_unregister(ctcm_dbf[x].id);
  40                ctcm_dbf[x].id = NULL;
  41        }
  42}
  43
  44int ctcm_register_dbf_views(void)
  45{
  46        int x;
  47        for (x = 0; x < CTCM_DBF_INFOS; x++) {
  48                /* register the areas */
  49                ctcm_dbf[x].id = debug_register(ctcm_dbf[x].name,
  50                                                ctcm_dbf[x].pages,
  51                                                ctcm_dbf[x].areas,
  52                                                ctcm_dbf[x].len);
  53                if (ctcm_dbf[x].id == NULL) {
  54                        ctcm_unregister_dbf_views();
  55                        return -ENOMEM;
  56                }
  57
  58                /* register a view */
  59                debug_register_view(ctcm_dbf[x].id, &debug_hex_ascii_view);
  60                /* set a passing level */
  61                debug_set_level(ctcm_dbf[x].id, ctcm_dbf[x].level);
  62        }
  63
  64        return 0;
  65}
  66
  67void ctcm_dbf_longtext(enum ctcm_dbf_names dbf_nix, int level, char *fmt, ...)
  68{
  69        char dbf_txt_buf[64];
  70        va_list args;
  71
  72        if (level > (ctcm_dbf[dbf_nix].id)->level)
  73                return;
  74        va_start(args, fmt);
  75        vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
  76        va_end(args);
  77
  78        debug_text_event(ctcm_dbf[dbf_nix].id, level, dbf_txt_buf);
  79}
  80
  81