1d8206b97a
The transport class (svc_xprt_class) represents a type of transport, e.g. udp, tcp, rdma. A transport class has a unique name and a set of transport operations kept in the svc_xprt_ops structure. A transport class can be dynamically registered and unregisterd. The svc_xprt_class represents the module that implements the transport type and keeps reference counts on the module to avoid unloading while there are active users. The endpoint (svc_xprt) is a generic, transport independent endpoint that can be used to send and receive data for an RPC service. It inherits it's operations from the transport class. A transport driver module registers and unregisters itself with svc sunrpc by calling svc_reg_xprt_class, and svc_unreg_xprt_class respectively. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Acked-by: Neil Brown <neilb@suse.de> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Greg Banks <gnb@sgi.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
95 lines
2.0 KiB
C
95 lines
2.0 KiB
C
/*
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* linux/include/linux/sunrpc/debug.h
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*
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* Debugging support for sunrpc module
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*
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* Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
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*/
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#ifndef _LINUX_SUNRPC_DEBUG_H_
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#define _LINUX_SUNRPC_DEBUG_H_
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/*
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* RPC debug facilities
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*/
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#define RPCDBG_XPRT 0x0001
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#define RPCDBG_CALL 0x0002
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#define RPCDBG_DEBUG 0x0004
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#define RPCDBG_NFS 0x0008
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#define RPCDBG_AUTH 0x0010
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#define RPCDBG_BIND 0x0020
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#define RPCDBG_SCHED 0x0040
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#define RPCDBG_TRANS 0x0080
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#define RPCDBG_SVCSOCK 0x0100
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#define RPCDBG_SVCXPRT 0x0100
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#define RPCDBG_SVCDSP 0x0200
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#define RPCDBG_MISC 0x0400
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#define RPCDBG_CACHE 0x0800
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#define RPCDBG_ALL 0x7fff
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#ifdef __KERNEL__
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#include <linux/timer.h>
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#include <linux/workqueue.h>
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/*
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* Enable RPC debugging/profiling.
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*/
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#ifdef CONFIG_SYSCTL
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#define RPC_DEBUG
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#endif
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/* #define RPC_PROFILE */
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/*
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* Debugging macros etc
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*/
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#ifdef RPC_DEBUG
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extern unsigned int rpc_debug;
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extern unsigned int nfs_debug;
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extern unsigned int nfsd_debug;
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extern unsigned int nlm_debug;
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#endif
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#define dprintk(args...) dfprintk(FACILITY, ## args)
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#undef ifdebug
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#ifdef RPC_DEBUG
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# define ifdebug(fac) if (unlikely(rpc_debug & RPCDBG_##fac))
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# define dfprintk(fac, args...) do { ifdebug(fac) printk(args); } while(0)
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# define RPC_IFDEBUG(x) x
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#else
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# define ifdebug(fac) if (0)
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# define dfprintk(fac, args...) do ; while (0)
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# define RPC_IFDEBUG(x)
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#endif
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/*
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* Sysctl interface for RPC debugging
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*/
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#ifdef RPC_DEBUG
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void rpc_register_sysctl(void);
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void rpc_unregister_sysctl(void);
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#endif
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#endif /* __KERNEL__ */
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/*
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* Declarations for the sysctl debug interface, which allows to read or
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* change the debug flags for rpc, nfs, nfsd, and lockd. Since the sunrpc
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* module currently registers its sysctl table dynamically, the sysctl path
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* for module FOO is <CTL_SUNRPC, CTL_FOODEBUG>.
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*/
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enum {
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CTL_RPCDEBUG = 1,
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CTL_NFSDEBUG,
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CTL_NFSDDEBUG,
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CTL_NLMDEBUG,
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CTL_SLOTTABLE_UDP,
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CTL_SLOTTABLE_TCP,
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CTL_MIN_RESVPORT,
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CTL_MAX_RESVPORT,
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};
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#endif /* _LINUX_SUNRPC_DEBUG_H_ */
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