linux/sunrpc/xprt.h

197 struct rpc_xprt {  struct
199 	const struct rpc_xprt_ops *ops;		/* transport methods */  argument
200 	unsigned int		id;		/* transport id */
202 	const struct rpc_timeout *timeout;	/* timeout parms */
203 	struct sockaddr_storage	addr;		/* server address */
204 	size_t			addrlen;	/* size of server address */
205 	int			prot;		/* IP protocol */
207 	unsigned long		cong;		/* current congestion */
208 	unsigned long		cwnd;		/* congestion window */
210 	size_t			max_payload;	/* largest RPC payload size,
213 	struct rpc_wait_queue	binding;	/* requests waiting on rpcbind */
214 	struct rpc_wait_queue	sending;	/* requests waiting to send */
215 	struct rpc_wait_queue	pending;	/* requests in flight */
216 	struct rpc_wait_queue	backlog;	/* waiting for slot */
217 	struct list_head	free;		/* free slots */
218 	unsigned int		max_reqs;	/* max number of slots */
219 	unsigned int		min_reqs;	/* min number of slots */
220 	unsigned int		num_reqs;	/* total slots */
221 	unsigned long		state;		/* transport state */
222 	unsigned char		resvport   : 1,	/* use a reserved port */
223 				reuseport  : 1; /* reuse port on reconnect */
224 	atomic_t		swapper;	/* we're swapping over this
226 	unsigned int		bind_index;	/* bind function index */
231 	struct list_head	xprt_switch;
236 	unsigned long		bind_timeout,
237 				reestablish_timeout;
238 	struct xprtsec_parms	xprtsec;
239 	unsigned int		connect_cookie;	/* A cookie that gets bumped
246 	struct work_struct	task_cleanup;
247 	struct timer_list	timer;
248 	unsigned long		last_used,
249 				idle_timeout,
250 				connect_timeout,
251 				max_reconnect_timeout;
256 	atomic_long_t		queuelen;
257 	spinlock_t		transport_lock;	/* lock transport info */
258 	spinlock_t		reserve_lock;	/* lock slot table */
259 	spinlock_t		queue_lock;	/* send/receive queue lock */
260 	u32			xid;		/* Next XID value to use */
261 	struct rpc_task *	snd_task;	/* Task blocked in send */
263 	struct list_head	xmit_queue;	/* Send queue */
264 	atomic_long_t		xmit_queuelen;
266 	struct svc_xprt		*bc_xprt;	/* NFSv4.1 backchannel */
268 	struct svc_serv		*bc_serv;       /* The RPC service which will */
270 	unsigned int		bc_alloc_max;
271 	unsigned int		bc_alloc_count;	/* Total number of preallocs */
272 	atomic_t		bc_slot_count;	/* Number of allocated slots */
273 	spinlock_t		bc_pa_lock;	/* Protects the preallocated
275 	struct list_head	bc_pa_list;	/* List of preallocated
279 	struct rb_root		recv_queue;	/* Receive queue */
281 	struct {
295 	} stat;
297 	struct net		*xprt_net;
298 	netns_tracker		ns_tracker;
299 	const char		*servername;
300 	const char		*address_strings[RPC_DISPLAY_MAX];
302 	struct dentry		*debugfs;		/* debugfs directory */
304 	struct rcu_head		rcu;
305 	const struct xprt_class	*xprt_class;
306 	struct rpc_sysfs_xprt	*xprt_sysfs;
307 	bool			main; /*mark if this is the 1st transport */