Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Chuck Lever | 55aa4f5 | 2005-08-11 16:25:47 -0400 | [diff] [blame] | 2 | * linux/include/linux/sunrpc/xprt.h |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
| 4 | * Declarations for the RPC transport interface. |
| 5 | * |
| 6 | * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de> |
| 7 | */ |
| 8 | |
| 9 | #ifndef _LINUX_SUNRPC_XPRT_H |
| 10 | #define _LINUX_SUNRPC_XPRT_H |
| 11 | |
| 12 | #include <linux/uio.h> |
| 13 | #include <linux/socket.h> |
| 14 | #include <linux/in.h> |
Trond Myklebust | 6b6ca86 | 2006-09-05 12:55:57 -0400 | [diff] [blame] | 15 | #include <linux/kref.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #include <linux/sunrpc/sched.h> |
| 17 | #include <linux/sunrpc/xdr.h> |
Greg Banks | 7adae48 | 2006-10-04 02:15:47 -0700 | [diff] [blame] | 18 | #include <linux/sunrpc/msg_prot.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | extern unsigned int xprt_udp_slot_table_entries; |
| 21 | extern unsigned int xprt_tcp_slot_table_entries; |
| 22 | |
| 23 | #define RPC_MIN_SLOT_TABLE (2U) |
| 24 | #define RPC_DEF_SLOT_TABLE (16U) |
| 25 | #define RPC_MAX_SLOT_TABLE (128U) |
| 26 | |
Chuck Lever | a246b01 | 2005-08-11 16:25:23 -0400 | [diff] [blame] | 27 | /* |
Chuck Lever | 529b33c | 2005-08-25 16:25:54 -0700 | [diff] [blame] | 28 | * Parameters for choosing a free port |
| 29 | */ |
| 30 | extern unsigned int xprt_min_resvport; |
| 31 | extern unsigned int xprt_max_resvport; |
| 32 | |
| 33 | #define RPC_MIN_RESVPORT (1U) |
| 34 | #define RPC_MAX_RESVPORT (65535U) |
Chuck Lever | 8e03709 | 2006-08-22 20:06:15 -0400 | [diff] [blame] | 35 | #define RPC_DEF_MIN_RESVPORT (665U) |
Chuck Lever | 529b33c | 2005-08-25 16:25:54 -0700 | [diff] [blame] | 36 | #define RPC_DEF_MAX_RESVPORT (1023U) |
| 37 | |
| 38 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | * This describes a timeout strategy |
| 40 | */ |
| 41 | struct rpc_timeout { |
| 42 | unsigned long to_initval, /* initial timeout */ |
| 43 | to_maxval, /* max timeout */ |
| 44 | to_increment; /* if !exponential */ |
| 45 | unsigned int to_retries; /* max # of retries */ |
| 46 | unsigned char to_exponential; |
| 47 | }; |
| 48 | |
Chuck Lever | edb267a | 2006-08-22 20:06:18 -0400 | [diff] [blame] | 49 | enum rpc_display_format_t { |
| 50 | RPC_DISPLAY_ADDR = 0, |
| 51 | RPC_DISPLAY_PORT, |
| 52 | RPC_DISPLAY_PROTO, |
| 53 | RPC_DISPLAY_ALL, |
| 54 | RPC_DISPLAY_MAX, |
| 55 | }; |
| 56 | |
Chuck Lever | 529b33c | 2005-08-25 16:25:54 -0700 | [diff] [blame] | 57 | struct rpc_task; |
| 58 | struct rpc_xprt; |
Trond Myklebust | e99170f | 2006-04-18 13:21:42 -0400 | [diff] [blame] | 59 | struct seq_file; |
Chuck Lever | 529b33c | 2005-08-25 16:25:54 -0700 | [diff] [blame] | 60 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | /* |
| 62 | * This describes a complete RPC request |
| 63 | */ |
| 64 | struct rpc_rqst { |
| 65 | /* |
| 66 | * This is the user-visible part |
| 67 | */ |
| 68 | struct rpc_xprt * rq_xprt; /* RPC client */ |
| 69 | struct xdr_buf rq_snd_buf; /* send buffer */ |
| 70 | struct xdr_buf rq_rcv_buf; /* recv buffer */ |
| 71 | |
| 72 | /* |
| 73 | * This is the private part |
| 74 | */ |
| 75 | struct rpc_task * rq_task; /* RPC task data */ |
Alexey Dobriyan | d8ed029 | 2006-09-26 22:29:38 -0700 | [diff] [blame] | 76 | __be32 rq_xid; /* request XID */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | int rq_cong; /* has incremented xprt->cong */ |
| 78 | int rq_received; /* receive completed */ |
| 79 | u32 rq_seqno; /* gss seq no. used on req. */ |
J. Bruce Fields | ead5e1c | 2005-10-13 16:54:43 -0400 | [diff] [blame] | 80 | int rq_enc_pages_num; |
| 81 | struct page **rq_enc_pages; /* scratch pages for use by |
| 82 | gss privacy code */ |
| 83 | void (*rq_release_snd_buf)(struct rpc_rqst *); /* release rq_enc_pages */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | struct list_head rq_list; |
| 85 | |
Chuck Lever | 0210714 | 2006-01-03 09:55:49 +0100 | [diff] [blame] | 86 | __u32 * rq_buffer; /* XDR encode buffer */ |
Chuck Lever | 2bea90d | 2007-03-29 16:47:53 -0400 | [diff] [blame] | 87 | size_t rq_bufsize, |
| 88 | rq_callsize, |
| 89 | rq_rcvsize; |
Chuck Lever | 0210714 | 2006-01-03 09:55:49 +0100 | [diff] [blame] | 90 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | struct xdr_buf rq_private_buf; /* The receive buffer |
| 92 | * used in the softirq. |
| 93 | */ |
| 94 | unsigned long rq_majortimeo; /* major timeout alarm */ |
| 95 | unsigned long rq_timeout; /* Current timeout value */ |
| 96 | unsigned int rq_retries; /* # of retries */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | |
| 98 | /* |
| 99 | * Partial send handling |
| 100 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | u32 rq_bytes_sent; /* Bytes we have sent */ |
| 102 | |
| 103 | unsigned long rq_xtime; /* when transmitted */ |
| 104 | int rq_ntrans; |
| 105 | }; |
| 106 | #define rq_svec rq_snd_buf.head |
| 107 | #define rq_slen rq_snd_buf.len |
| 108 | |
Chuck Lever | a246b01 | 2005-08-11 16:25:23 -0400 | [diff] [blame] | 109 | struct rpc_xprt_ops { |
Chuck Lever | 470056c | 2005-08-25 16:25:56 -0700 | [diff] [blame] | 110 | void (*set_buffer_size)(struct rpc_xprt *xprt, size_t sndsize, size_t rcvsize); |
Chuck Lever | 12a8046 | 2005-08-25 16:25:51 -0700 | [diff] [blame] | 111 | int (*reserve_xprt)(struct rpc_task *task); |
Chuck Lever | 49e9a89 | 2005-08-25 16:25:51 -0700 | [diff] [blame] | 112 | void (*release_xprt)(struct rpc_xprt *xprt, struct rpc_task *task); |
Chuck Lever | bbf7c1d | 2006-08-22 20:06:16 -0400 | [diff] [blame] | 113 | void (*rpcbind)(struct rpc_task *task); |
Chuck Lever | 9220041 | 2006-01-03 09:55:51 +0100 | [diff] [blame] | 114 | void (*set_port)(struct rpc_xprt *xprt, unsigned short port); |
Chuck Lever | a246b01 | 2005-08-11 16:25:23 -0400 | [diff] [blame] | 115 | void (*connect)(struct rpc_task *task); |
Chuck Lever | 0210714 | 2006-01-03 09:55:49 +0100 | [diff] [blame] | 116 | void * (*buf_alloc)(struct rpc_task *task, size_t size); |
Chuck Lever | c5a4dd8 | 2007-03-29 16:47:58 -0400 | [diff] [blame] | 117 | void (*buf_free)(void *buffer); |
Chuck Lever | a246b01 | 2005-08-11 16:25:23 -0400 | [diff] [blame] | 118 | int (*send_request)(struct rpc_task *task); |
Chuck Lever | fe3aca2 | 2005-08-25 16:25:50 -0700 | [diff] [blame] | 119 | void (*set_retrans_timeout)(struct rpc_task *task); |
Chuck Lever | 46c0ee8 | 2005-08-25 16:25:52 -0700 | [diff] [blame] | 120 | void (*timer)(struct rpc_task *task); |
Chuck Lever | a58dd39 | 2005-08-25 16:25:53 -0700 | [diff] [blame] | 121 | void (*release_request)(struct rpc_task *task); |
Chuck Lever | a246b01 | 2005-08-11 16:25:23 -0400 | [diff] [blame] | 122 | void (*close)(struct rpc_xprt *xprt); |
| 123 | void (*destroy)(struct rpc_xprt *xprt); |
Chuck Lever | 262ca07 | 2006-03-20 13:44:16 -0500 | [diff] [blame] | 124 | void (*print_stats)(struct rpc_xprt *xprt, struct seq_file *seq); |
Chuck Lever | a246b01 | 2005-08-11 16:25:23 -0400 | [diff] [blame] | 125 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | |
| 127 | struct rpc_xprt { |
Trond Myklebust | 6b6ca86 | 2006-09-05 12:55:57 -0400 | [diff] [blame] | 128 | struct kref kref; /* Reference count */ |
Chuck Lever | a246b01 | 2005-08-11 16:25:23 -0400 | [diff] [blame] | 129 | struct rpc_xprt_ops * ops; /* transport methods */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | |
| 131 | struct rpc_timeout timeout; /* timeout parms */ |
Chuck Lever | c4efcb1 | 2006-08-22 20:06:19 -0400 | [diff] [blame] | 132 | struct sockaddr_storage addr; /* server address */ |
| 133 | size_t addrlen; /* size of server address */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | int prot; /* IP protocol */ |
| 135 | |
| 136 | unsigned long cong; /* current congestion */ |
| 137 | unsigned long cwnd; /* congestion window */ |
| 138 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | size_t max_payload; /* largest RPC payload size, |
| 140 | in bytes */ |
Chuck Lever | 808012f | 2005-08-25 16:25:49 -0700 | [diff] [blame] | 141 | unsigned int tsh_size; /* size of transport specific |
| 142 | header */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | |
Chuck Lever | 4a68179 | 2006-08-22 20:06:15 -0400 | [diff] [blame] | 144 | struct rpc_wait_queue binding; /* requests waiting on rpcbind */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | struct rpc_wait_queue sending; /* requests waiting to send */ |
| 146 | struct rpc_wait_queue resend; /* requests waiting to resend */ |
| 147 | struct rpc_wait_queue pending; /* requests in flight */ |
| 148 | struct rpc_wait_queue backlog; /* waiting for slot */ |
| 149 | struct list_head free; /* free slots */ |
| 150 | struct rpc_rqst * slot; /* slot table storage */ |
| 151 | unsigned int max_reqs; /* total slots */ |
Chuck Lever | 2226feb | 2005-08-11 16:25:38 -0400 | [diff] [blame] | 152 | unsigned long state; /* transport state */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | unsigned char shutdown : 1, /* being shut down */ |
Chuck Lever | 43118c2 | 2005-08-25 16:25:49 -0700 | [diff] [blame] | 154 | resvport : 1; /* use a reserved port */ |
Chuck Lever | a509050 | 2007-03-29 16:48:04 -0400 | [diff] [blame^] | 155 | unsigned int bind_index; /* bind function index */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | |
| 157 | /* |
Chuck Lever | 55aa4f5 | 2005-08-11 16:25:47 -0400 | [diff] [blame] | 158 | * Connection of transports |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | */ |
Chuck Lever | 03bf4b7 | 2005-08-25 16:25:55 -0700 | [diff] [blame] | 160 | unsigned long connect_timeout, |
| 161 | bind_timeout, |
| 162 | reestablish_timeout; |
Chuck Lever | 03bf4b7 | 2005-08-25 16:25:55 -0700 | [diff] [blame] | 163 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | /* |
Chuck Lever | 55aa4f5 | 2005-08-11 16:25:47 -0400 | [diff] [blame] | 165 | * Disconnection of idle transports |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | */ |
| 167 | struct work_struct task_cleanup; |
| 168 | struct timer_list timer; |
Chuck Lever | 03bf4b7 | 2005-08-25 16:25:55 -0700 | [diff] [blame] | 169 | unsigned long last_used, |
| 170 | idle_timeout; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | |
| 172 | /* |
| 173 | * Send stuff |
| 174 | */ |
Chuck Lever | 4a0f8c0 | 2005-08-11 16:25:32 -0400 | [diff] [blame] | 175 | spinlock_t transport_lock; /* lock transport info */ |
Chuck Lever | 5dc0772 | 2005-08-11 16:25:35 -0400 | [diff] [blame] | 176 | spinlock_t reserve_lock; /* lock slot table */ |
Chuck Lever | e744cf2 | 2006-10-17 14:44:24 -0400 | [diff] [blame] | 177 | u32 xid; /* Next XID value to use */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | struct rpc_task * snd_task; /* Task blocked in send */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | struct list_head recv; |
| 180 | |
Chuck Lever | 262ca07 | 2006-03-20 13:44:16 -0500 | [diff] [blame] | 181 | struct { |
| 182 | unsigned long bind_count, /* total number of binds */ |
| 183 | connect_count, /* total number of connects */ |
| 184 | connect_start, /* connect start timestamp */ |
| 185 | connect_time, /* jiffies waiting for connect */ |
| 186 | sends, /* how many complete requests */ |
| 187 | recvs, /* how many complete requests */ |
| 188 | bad_xids; /* lookup_rqst didn't find XID */ |
| 189 | |
| 190 | unsigned long long req_u, /* average requests on the wire */ |
| 191 | bklog_u; /* backlog queue utilization */ |
| 192 | } stat; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | |
Chuck Lever | edb267a | 2006-08-22 20:06:18 -0400 | [diff] [blame] | 194 | char * address_strings[RPC_DISPLAY_MAX]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | }; |
| 196 | |
| 197 | #ifdef __KERNEL__ |
| 198 | |
Chuck Lever | 55aa4f5 | 2005-08-11 16:25:47 -0400 | [diff] [blame] | 199 | /* |
| 200 | * Transport operations used by ULPs |
| 201 | */ |
Chuck Lever | 55aa4f5 | 2005-08-11 16:25:47 -0400 | [diff] [blame] | 202 | void xprt_set_timeout(struct rpc_timeout *to, unsigned int retr, unsigned long incr); |
| 203 | |
| 204 | /* |
| 205 | * Generic internal transport functions |
| 206 | */ |
Chuck Lever | c286676 | 2006-08-22 20:06:20 -0400 | [diff] [blame] | 207 | struct rpc_xprt * xprt_create_transport(int proto, struct sockaddr *addr, size_t size, struct rpc_timeout *toparms); |
Chuck Lever | 55aa4f5 | 2005-08-11 16:25:47 -0400 | [diff] [blame] | 208 | void xprt_connect(struct rpc_task *task); |
| 209 | void xprt_reserve(struct rpc_task *task); |
Chuck Lever | 12a8046 | 2005-08-25 16:25:51 -0700 | [diff] [blame] | 210 | int xprt_reserve_xprt(struct rpc_task *task); |
| 211 | int xprt_reserve_xprt_cong(struct rpc_task *task); |
Chuck Lever | 55aa4f5 | 2005-08-11 16:25:47 -0400 | [diff] [blame] | 212 | int xprt_prepare_transmit(struct rpc_task *task); |
| 213 | void xprt_transmit(struct rpc_task *task); |
Trond Myklebust | e0ab53d | 2006-07-27 17:22:50 -0400 | [diff] [blame] | 214 | void xprt_end_transmit(struct rpc_task *task); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | int xprt_adjust_timeout(struct rpc_rqst *req); |
Chuck Lever | 49e9a89 | 2005-08-25 16:25:51 -0700 | [diff] [blame] | 216 | void xprt_release_xprt(struct rpc_xprt *xprt, struct rpc_task *task); |
| 217 | void xprt_release_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task); |
Chuck Lever | 55aa4f5 | 2005-08-11 16:25:47 -0400 | [diff] [blame] | 218 | void xprt_release(struct rpc_task *task); |
Trond Myklebust | 6b6ca86 | 2006-09-05 12:55:57 -0400 | [diff] [blame] | 219 | struct rpc_xprt * xprt_get(struct rpc_xprt *xprt); |
| 220 | void xprt_put(struct rpc_xprt *xprt); |
Chuck Lever | 55aa4f5 | 2005-08-11 16:25:47 -0400 | [diff] [blame] | 221 | |
Alexey Dobriyan | d8ed029 | 2006-09-26 22:29:38 -0700 | [diff] [blame] | 222 | static inline __be32 *xprt_skip_transport_header(struct rpc_xprt *xprt, __be32 *p) |
Chuck Lever | 808012f | 2005-08-25 16:25:49 -0700 | [diff] [blame] | 223 | { |
| 224 | return p + xprt->tsh_size; |
| 225 | } |
| 226 | |
Chuck Lever | 55aa4f5 | 2005-08-11 16:25:47 -0400 | [diff] [blame] | 227 | /* |
| 228 | * Transport switch helper functions |
| 229 | */ |
Chuck Lever | fe3aca2 | 2005-08-25 16:25:50 -0700 | [diff] [blame] | 230 | void xprt_set_retrans_timeout_def(struct rpc_task *task); |
| 231 | void xprt_set_retrans_timeout_rtt(struct rpc_task *task); |
Chuck Lever | 55aa4f5 | 2005-08-11 16:25:47 -0400 | [diff] [blame] | 232 | void xprt_wake_pending_tasks(struct rpc_xprt *xprt, int status); |
Chuck Lever | c7b2cae | 2005-08-11 16:25:50 -0400 | [diff] [blame] | 233 | void xprt_wait_for_buffer_space(struct rpc_task *task); |
| 234 | void xprt_write_space(struct rpc_xprt *xprt); |
Chuck Lever | 1570c1e | 2005-08-25 16:25:52 -0700 | [diff] [blame] | 235 | void xprt_update_rtt(struct rpc_task *task); |
Chuck Lever | 46c0ee8 | 2005-08-25 16:25:52 -0700 | [diff] [blame] | 236 | void xprt_adjust_cwnd(struct rpc_task *task, int result); |
Alexey Dobriyan | d8ed029 | 2006-09-26 22:29:38 -0700 | [diff] [blame] | 237 | struct rpc_rqst * xprt_lookup_rqst(struct rpc_xprt *xprt, __be32 xid); |
Chuck Lever | 1570c1e | 2005-08-25 16:25:52 -0700 | [diff] [blame] | 238 | void xprt_complete_rqst(struct rpc_task *task, int copied); |
Chuck Lever | a58dd39 | 2005-08-25 16:25:53 -0700 | [diff] [blame] | 239 | void xprt_release_rqst_cong(struct rpc_task *task); |
Chuck Lever | 55aa4f5 | 2005-08-11 16:25:47 -0400 | [diff] [blame] | 240 | void xprt_disconnect(struct rpc_xprt *xprt); |
| 241 | |
| 242 | /* |
| 243 | * Socket transport setup operations |
| 244 | */ |
Chuck Lever | c8541ec | 2006-10-17 14:44:27 -0400 | [diff] [blame] | 245 | struct rpc_xprt * xs_setup_udp(struct sockaddr *addr, size_t addrlen, struct rpc_timeout *to); |
| 246 | struct rpc_xprt * xs_setup_tcp(struct sockaddr *addr, size_t addrlen, struct rpc_timeout *to); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | |
Chuck Lever | 2226feb | 2005-08-11 16:25:38 -0400 | [diff] [blame] | 248 | /* |
| 249 | * Reserved bit positions in xprt->state |
| 250 | */ |
| 251 | #define XPRT_LOCKED (0) |
| 252 | #define XPRT_CONNECTED (1) |
| 253 | #define XPRT_CONNECTING (2) |
Trond Myklebust | 632e3bd | 2006-01-03 09:55:55 +0100 | [diff] [blame] | 254 | #define XPRT_CLOSE_WAIT (3) |
Chuck Lever | ec739ef | 2006-08-22 20:06:15 -0400 | [diff] [blame] | 255 | #define XPRT_BOUND (4) |
Chuck Lever | 4a68179 | 2006-08-22 20:06:15 -0400 | [diff] [blame] | 256 | #define XPRT_BINDING (5) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | |
Chuck Lever | 2226feb | 2005-08-11 16:25:38 -0400 | [diff] [blame] | 258 | static inline void xprt_set_connected(struct rpc_xprt *xprt) |
| 259 | { |
| 260 | set_bit(XPRT_CONNECTED, &xprt->state); |
| 261 | } |
| 262 | |
| 263 | static inline void xprt_clear_connected(struct rpc_xprt *xprt) |
| 264 | { |
| 265 | clear_bit(XPRT_CONNECTED, &xprt->state); |
| 266 | } |
| 267 | |
| 268 | static inline int xprt_connected(struct rpc_xprt *xprt) |
| 269 | { |
| 270 | return test_bit(XPRT_CONNECTED, &xprt->state); |
| 271 | } |
| 272 | |
| 273 | static inline int xprt_test_and_set_connected(struct rpc_xprt *xprt) |
| 274 | { |
| 275 | return test_and_set_bit(XPRT_CONNECTED, &xprt->state); |
| 276 | } |
| 277 | |
| 278 | static inline int xprt_test_and_clear_connected(struct rpc_xprt *xprt) |
| 279 | { |
| 280 | return test_and_clear_bit(XPRT_CONNECTED, &xprt->state); |
| 281 | } |
| 282 | |
| 283 | static inline void xprt_clear_connecting(struct rpc_xprt *xprt) |
| 284 | { |
| 285 | smp_mb__before_clear_bit(); |
| 286 | clear_bit(XPRT_CONNECTING, &xprt->state); |
| 287 | smp_mb__after_clear_bit(); |
| 288 | } |
| 289 | |
| 290 | static inline int xprt_connecting(struct rpc_xprt *xprt) |
| 291 | { |
| 292 | return test_bit(XPRT_CONNECTING, &xprt->state); |
| 293 | } |
| 294 | |
| 295 | static inline int xprt_test_and_set_connecting(struct rpc_xprt *xprt) |
| 296 | { |
| 297 | return test_and_set_bit(XPRT_CONNECTING, &xprt->state); |
| 298 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | |
Chuck Lever | ec739ef | 2006-08-22 20:06:15 -0400 | [diff] [blame] | 300 | static inline void xprt_set_bound(struct rpc_xprt *xprt) |
| 301 | { |
| 302 | test_and_set_bit(XPRT_BOUND, &xprt->state); |
| 303 | } |
| 304 | |
| 305 | static inline int xprt_bound(struct rpc_xprt *xprt) |
| 306 | { |
| 307 | return test_bit(XPRT_BOUND, &xprt->state); |
| 308 | } |
| 309 | |
| 310 | static inline void xprt_clear_bound(struct rpc_xprt *xprt) |
| 311 | { |
| 312 | clear_bit(XPRT_BOUND, &xprt->state); |
| 313 | } |
| 314 | |
Chuck Lever | 4a68179 | 2006-08-22 20:06:15 -0400 | [diff] [blame] | 315 | static inline void xprt_clear_binding(struct rpc_xprt *xprt) |
| 316 | { |
| 317 | smp_mb__before_clear_bit(); |
| 318 | clear_bit(XPRT_BINDING, &xprt->state); |
| 319 | smp_mb__after_clear_bit(); |
| 320 | } |
| 321 | |
| 322 | static inline int xprt_test_and_set_binding(struct rpc_xprt *xprt) |
| 323 | { |
| 324 | return test_and_set_bit(XPRT_BINDING, &xprt->state); |
| 325 | } |
| 326 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | #endif /* __KERNEL__*/ |
| 328 | |
| 329 | #endif /* _LINUX_SUNRPC_XPRT_H */ |