include/linux/sunrpc/debug.h

   1 /*
   2  * linux/include/linux/sunrpc/debug.h
   3  *
   4  * Debugging support for sunrpc module
   5  *
   6  * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
   7  */
   8
   9 #ifndef _LINUX_SUNRPC_DEBUG_H_
  10 #define _LINUX_SUNRPC_DEBUG_H_
  11
  12 /*
  13  * RPC debug facilities
  14  */
  15 #define RPCDBG_XPRT             0x0001
  16 #define RPCDBG_CALL             0x0002
  17 #define RPCDBG_DEBUG            0x0004
  18 #define RPCDBG_NFS              0x0008
  19 #define RPCDBG_AUTH             0x0010
  20 #define RPCDBG_BIND             0x0020
  21 #define RPCDBG_SCHED            0x0040
  22 #define RPCDBG_TRANS            0x0080
  23 #define RPCDBG_SVCXPRT          0x0100
  24 #define RPCDBG_SVCDSP           0x0200
  25 #define RPCDBG_MISC             0x0400
  26 #define RPCDBG_CACHE            0x0800
  27 #define RPCDBG_ALL              0x7fff
  28
  29 #ifdef __KERNEL__
  30
  31 /*
  32  * Enable RPC debugging/profiling.
  33  */
  34 #ifdef CONFIG_SUNRPC_DEBUG
  35 #define  RPC_DEBUG
  36 #endif
  37 #ifdef CONFIG_TRACEPOINTS
  38 #define RPC_TRACEPOINTS
  39 #endif
  40 /* #define  RPC_PROFILE */
  41
  42 /*
  43  * Debugging macros etc
  44  */
  45 #ifdef RPC_DEBUG
  46 extern unsigned int             rpc_debug;
  47 extern unsigned int             nfs_debug;
  48 extern unsigned int             nfsd_debug;
  49 extern unsigned int             nlm_debug;
  50 #endif
  51
  52 #define dprintk(args...)        dfprintk(FACILITY, ## args)
  53 #define dprintk_rcu(args...)    dfprintk_rcu(FACILITY, ## args)
  54
  55 #undef ifdebug
  56 #ifdef RPC_DEBUG
  57 # define ifdebug(fac)           if (unlikely(rpc_debug & RPCDBG_##fac))
  58
  59 # define dfprintk(fac, args...) \
  60         do { \
  61                 ifdebug(fac) \
  62                         printk(KERN_DEFAULT args); \
  63         } while (0)
  64
  65 # define dfprintk_rcu(fac, args...)     \
  66         do { \
  67                 ifdebug(fac) { \
  68                         rcu_read_lock(); \
  69                         printk(KERN_DEFAULT args); \
  70                         rcu_read_unlock(); \
  71                 } \
  72         } while (0)
  73
  74 # define RPC_IFDEBUG(x)         x
  75 #else
  76 # define ifdebug(fac)           if (0)
  77 # define dfprintk(fac, args...) do {} while (0)
  78 # define dfprintk_rcu(fac, args...)     do {} while (0)
  79 # define RPC_IFDEBUG(x)
  80 #endif
  81
  82 /*
  83  * Sysctl interface for RPC debugging
  84  */
  85 #ifdef RPC_DEBUG
  86 void            rpc_register_sysctl(void);
  87 void            rpc_unregister_sysctl(void);
  88 #endif
  89
  90 #endif /* __KERNEL__ */
  91
  92 /*
  93  * Declarations for the sysctl debug interface, which allows to read or
  94  * change the debug flags for rpc, nfs, nfsd, and lockd. Since the sunrpc
  95  * module currently registers its sysctl table dynamically, the sysctl path
  96  * for module FOO is <CTL_SUNRPC, CTL_FOODEBUG>.
  97  */
  98
  99 enum {
 100         CTL_RPCDEBUG = 1,
 101         CTL_NFSDEBUG,
 102         CTL_NFSDDEBUG,
 103         CTL_NLMDEBUG,
 104         CTL_SLOTTABLE_UDP,
 105         CTL_SLOTTABLE_TCP,
 106         CTL_MIN_RESVPORT,
 107         CTL_MAX_RESVPORT,
 108 };
 109
 110 #endif /* _LINUX_SUNRPC_DEBUG_H_ */