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   1 /*
   2  *
   3  * Copyright (c) 2009, Microsoft Corporation.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2, as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  16  * Place - Suite 330, Boston, MA 02111-1307 USA.
  17  *
  18  * Authors:
  19  *   Haiyang Zhang <haiyangz@microsoft.com>
  20  *   Hank Janssen  <hjanssen@microsoft.com>
  21  *
  22  */
  23
  24
  25 #ifndef _LOGGING_H_
  26 #define _LOGGING_H_
  27
  28 /* #include <linux/init.h> */
  29 /* #include <linux/module.h> */
  30
  31
  32 #define VMBUS                           0x0001
  33 #define STORVSC                         0x0002
  34 #define NETVSC                          0x0004
  35 #define INPUTVSC                        0x0008
  36 #define BLKVSC                          0x0010
  37 #define VMBUS_DRV                       0x0100
  38 #define STORVSC_DRV                     0x0200
  39 #define NETVSC_DRV                      0x0400
  40 #define INPUTVSC_DRV            0x0800
  41 #define BLKVSC_DRV                      0x1000
  42
  43 #define ALL_MODULES                     (VMBUS          |\
  44                                                         STORVSC         |\
  45                                                         NETVSC          |\
  46                                                         INPUTVSC        |\
  47                                                         BLKVSC          |\
  48                                                         VMBUS_DRV       |\
  49                                                         STORVSC_DRV     |\
  50                                                         NETVSC_DRV      |\
  51                                                         INPUTVSC_DRV|\
  52                                                         BLKVSC_DRV)
  53
  54 /* Logging Level */
  55 #define ERROR_LVL                               3
  56 #define WARNING_LVL                             4
  57 #define INFO_LVL                                6
  58 #define DEBUG_LVL                               7
  59 #define DEBUG_LVL_ENTEREXIT                     8
  60 #define DEBUG_RING_LVL                          9
  61
  62 extern unsigned int vmbus_loglevel;
  63
  64 #define ASSERT(expr)    \
  65         if (!(expr)) {  \
  66                 printk(KERN_CRIT "Assertion failed! %s,%s,%s,line=%d\n", \
  67                        #expr, __FILE__, __func__, __LINE__);    \
  68                 __asm__ __volatile__("int3");   \
  69         }
  70
  71 #define DPRINT(mod, lvl, fmt, args...) do {\
  72         if ((mod & (HIWORD(vmbus_loglevel))) && \
  73             (lvl <= LOWORD(vmbus_loglevel)))    \
  74                 printk(KERN_DEBUG #mod": %s() " fmt "\n", __func__, ## args);\
  75         } while (0)
  76
  77 #define DPRINT_DBG(mod, fmt, args...) do {\
  78         if ((mod & (HIWORD(vmbus_loglevel))) &&         \
  79             (DEBUG_LVL <= LOWORD(vmbus_loglevel)))      \
  80                 printk(KERN_DEBUG #mod": %s() " fmt "\n", __func__, ## args);\
  81         } while (0)
  82
  83 #define DPRINT_INFO(mod, fmt, args...) do {\
  84         if ((mod & (HIWORD(vmbus_loglevel))) &&         \
  85             (INFO_LVL <= LOWORD(vmbus_loglevel)))       \
  86                 printk(KERN_INFO #mod": " fmt "\n", ## args);\
  87         } while (0)
  88
  89 #define DPRINT_WARN(mod, fmt, args...) do {\
  90         if ((mod & (HIWORD(vmbus_loglevel))) &&         \
  91             (WARNING_LVL <= LOWORD(vmbus_loglevel)))    \
  92                 printk(KERN_WARNING #mod": WARNING! " fmt "\n", ## args);\
  93         } while (0)
  94
  95 #define DPRINT_ERR(mod, fmt, args...) do {\
  96         if ((mod & (HIWORD(vmbus_loglevel))) &&         \
  97             (ERROR_LVL <= LOWORD(vmbus_loglevel)))      \
  98                 printk(KERN_ERR #mod": %s() ERROR!! " fmt "\n", \
  99                        __func__, ## args);\
 100         } while (0)
 101
 102 #ifdef DEBUG
 103 #define DPRINT_ENTER(mod) do {\
 104         if ((mod & (HIWORD(vmbus_loglevel))) && \
 105             (DEBUG_LVL_ENTEREXIT <= LOWORD(vmbus_loglevel)))    \
 106                 printk(KERN_DEBUG "["#mod"]: %s() enter\n", __func__);\
 107         } while (0)
 108
 109 #define DPRINT_EXIT(mod) do {\
 110         if ((mod & (HIWORD(vmbus_loglevel))) && \
 111             (DEBUG_LVL_ENTEREXIT <= LOWORD(vmbus_loglevel)))    \
 112                 printk(KERN_DEBUG "["#mod"]: %s() exit\n", __func__);\
 113         } while (0)
 114 #else
 115 #define DPRINT_ENTER(mod)
 116 #define DPRINT_EXIT(mod)
 117 #endif
 118
 119 #endif /* _LOGGING_H_ */