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      1 /*
      2  * linux/include/linux/sunrpc/debug.h
      3  *
      4  * Debugging support for sunrpc module
      5  *
      6  * Copyright (C) 1996, Olaf Kirch <okir (at) 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_PMAP		0x0020
     21 #define RPCDBG_SCHED		0x0040
     22 #define RPCDBG_TRANS		0x0080
     23 #define RPCDBG_SVCSOCK		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 #include <linux/timer.h>
     32 #include <linux/workqueue.h>
     33 
     34 /*
     35  * Enable RPC debugging/profiling.
     36  */
     37 #ifdef CONFIG_SYSCTL
     38 #define  RPC_DEBUG
     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 
     54 #undef ifdebug
     55 #ifdef RPC_DEBUG
     56 # define ifdebug(fac)		if (unlikely(rpc_debug & RPCDBG_##fac))
     57 # define dfprintk(fac, args...)	do { ifdebug(fac) printk(args); } while(0)
     58 # define RPC_IFDEBUG(x)		x
     59 #else
     60 # define ifdebug(fac)		if (0)
     61 # define dfprintk(fac, args...)	do ; while (0)
     62 # define RPC_IFDEBUG(x)
     63 #endif
     64 
     65 #ifdef RPC_PROFILE
     66 # define pprintk(args...)	printk(## args)
     67 #else
     68 # define pprintk(args...)	do ; while (0)
     69 #endif
     70 
     71 /*
     72  * Sysctl interface for RPC debugging
     73  */
     74 #ifdef RPC_DEBUG
     75 void		rpc_register_sysctl(void);
     76 void		rpc_unregister_sysctl(void);
     77 #endif
     78 
     79 #endif /* __KERNEL__ */
     80 
     81 /*
     82  * Declarations for the sysctl debug interface, which allows to read or
     83  * change the debug flags for rpc, nfs, nfsd, and lockd. Since the sunrpc
     84  * module currently registers its sysctl table dynamically, the sysctl path
     85  * for module FOO is <CTL_SUNRPC, CTL_FOODEBUG>.
     86  */
     87 #define CTL_SUNRPC	7249	/* arbitrary and hopefully unused */
     88 
     89 enum {
     90 	CTL_RPCDEBUG = 1,
     91 	CTL_NFSDEBUG,
     92 	CTL_NFSDDEBUG,
     93 	CTL_NLMDEBUG,
     94 	CTL_SLOTTABLE_UDP,
     95 	CTL_SLOTTABLE_TCP,
     96 	CTL_MIN_RESVPORT,
     97 	CTL_MAX_RESVPORT,
     98 };
     99 
    100 #endif /* _LINUX_SUNRPC_DEBUG_H_ */
    101