Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * linux/include/linux/sunrpc/svc.h | |
3 | * | |
4 | * RPC server declarations. | |
5 | * | |
6 | * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de> | |
7 | */ | |
8 | ||
9 | ||
10 | #ifndef SUNRPC_SVC_H | |
11 | #define SUNRPC_SVC_H | |
12 | ||
13 | #include <linux/in.h> | |
73df0dba | 14 | #include <linux/in6.h> |
1da177e4 LT |
15 | #include <linux/sunrpc/types.h> |
16 | #include <linux/sunrpc/xdr.h> | |
7adae489 | 17 | #include <linux/sunrpc/auth.h> |
1da177e4 LT |
18 | #include <linux/sunrpc/svcauth.h> |
19 | #include <linux/wait.h> | |
20 | #include <linux/mm.h> | |
21 | ||
03cf6c9f GB |
22 | /* statistics for svc_pool structures */ |
23 | struct svc_pool_stats { | |
403c7b44 | 24 | atomic_long_t packets; |
03cf6c9f | 25 | unsigned long sockets_queued; |
403c7b44 JL |
26 | atomic_long_t threads_woken; |
27 | atomic_long_t threads_timedout; | |
03cf6c9f GB |
28 | }; |
29 | ||
3262c816 GB |
30 | /* |
31 | * | |
32 | * RPC service thread pool. | |
33 | * | |
34 | * Pool of threads and temporary sockets. Generally there is only | |
35 | * a single one of these per RPC service, but on NUMA machines those | |
36 | * services that can benefit from it (i.e. nfs but not lockd) will | |
37 | * have one pool per NUMA node. This optimisation reduces cross- | |
38 | * node traffic on multi-node NUMA NFS servers. | |
39 | */ | |
40 | struct svc_pool { | |
41 | unsigned int sp_id; /* pool id; also node id on NUMA */ | |
42 | spinlock_t sp_lock; /* protects all fields */ | |
3262c816 GB |
43 | struct list_head sp_sockets; /* pending sockets */ |
44 | unsigned int sp_nrthreads; /* # of threads in pool */ | |
a7455442 | 45 | struct list_head sp_all_threads; /* all server threads */ |
03cf6c9f | 46 | struct svc_pool_stats sp_stats; /* statistics on pool operation */ |
4d5db3f5 JL |
47 | #define SP_TASK_PENDING (0) /* still work to do even if no |
48 | * xprt is queued. */ | |
49 | unsigned long sp_flags; | |
3262c816 GB |
50 | } ____cacheline_aligned_in_smp; |
51 | ||
ea126e74 JL |
52 | struct svc_serv; |
53 | ||
54 | struct svc_serv_ops { | |
55 | /* Callback to use when last thread exits. */ | |
c369014f | 56 | void (*svo_shutdown)(struct svc_serv *, struct net *); |
758f62ff JL |
57 | |
58 | /* function for service threads to run */ | |
c369014f | 59 | int (*svo_function)(void *); |
758f62ff | 60 | |
b9e13cdf JL |
61 | /* queue up a transport for servicing */ |
62 | void (*svo_enqueue_xprt)(struct svc_xprt *); | |
63 | ||
598e2359 JL |
64 | /* set up thread (or whatever) execution context */ |
65 | int (*svo_setup)(struct svc_serv *, struct svc_pool *, int); | |
66 | ||
758f62ff JL |
67 | /* optional module to count when adding threads (pooled svcs only) */ |
68 | struct module *svo_module; | |
ea126e74 JL |
69 | }; |
70 | ||
1da177e4 LT |
71 | /* |
72 | * RPC service. | |
73 | * | |
74 | * An RPC service is a ``daemon,'' possibly multithreaded, which | |
75 | * receives and processes incoming RPC messages. | |
76 | * It has one or more transport sockets associated with it, and maintains | |
77 | * a list of idle threads waiting for input. | |
78 | * | |
79 | * We currently do not support more than one RPC program per daemon. | |
80 | */ | |
81 | struct svc_serv { | |
1da177e4 LT |
82 | struct svc_program * sv_program; /* RPC program */ |
83 | struct svc_stat * sv_stats; /* RPC statistics */ | |
84 | spinlock_t sv_lock; | |
85 | unsigned int sv_nrthreads; /* # of server threads */ | |
c9233eb7 JL |
86 | unsigned int sv_maxconn; /* max connections allowed or |
87 | * '0' causing max to be based | |
88 | * on number of threads. */ | |
89 | ||
c6b0a9f8 N |
90 | unsigned int sv_max_payload; /* datagram payload size */ |
91 | unsigned int sv_max_mesg; /* max_payload + 1 page for overheads */ | |
1da177e4 | 92 | unsigned int sv_xdrsize; /* XDR buffer size */ |
1da177e4 LT |
93 | struct list_head sv_permsocks; /* all permanent sockets */ |
94 | struct list_head sv_tempsocks; /* all temporary sockets */ | |
95 | int sv_tmpcnt; /* count of temporary sockets */ | |
36bdfc8b | 96 | struct timer_list sv_temptimer; /* timer for aging temporary sockets */ |
1da177e4 LT |
97 | |
98 | char * sv_name; /* service name */ | |
bc591ccf | 99 | |
3262c816 GB |
100 | unsigned int sv_nrpools; /* number of thread pools */ |
101 | struct svc_pool * sv_pools; /* array of thread pools */ | |
ea126e74 | 102 | struct svc_serv_ops *sv_ops; /* server operations */ |
9e00abc3 | 103 | #if defined(CONFIG_SUNRPC_BACKCHANNEL) |
56632b5b RL |
104 | struct list_head sv_cb_list; /* queue for callback requests |
105 | * that arrive over the same | |
106 | * connection */ | |
107 | spinlock_t sv_cb_lock; /* protects the svc_cb_list */ | |
108 | wait_queue_head_t sv_cb_waitq; /* sleep here if there are no | |
109 | * entries in the svc_cb_list */ | |
4a19de0f | 110 | struct svc_xprt *sv_bc_xprt; /* callback on fore channel */ |
9e00abc3 | 111 | #endif /* CONFIG_SUNRPC_BACKCHANNEL */ |
1da177e4 LT |
112 | }; |
113 | ||
9a24ab57 GB |
114 | /* |
115 | * We use sv_nrthreads as a reference count. svc_destroy() drops | |
116 | * this refcount, so we need to bump it up around operations that | |
117 | * change the number of threads. Horrible, but there it is. | |
3c519914 | 118 | * Should be called with the "service mutex" held. |
9a24ab57 GB |
119 | */ |
120 | static inline void svc_get(struct svc_serv *serv) | |
121 | { | |
122 | serv->sv_nrthreads++; | |
123 | } | |
124 | ||
1da177e4 LT |
125 | /* |
126 | * Maximum payload size supported by a kernel RPC server. | |
127 | * This is use to determine the max number of pages nfsd is | |
128 | * willing to return in a single READ operation. | |
7adae489 GB |
129 | * |
130 | * These happen to all be powers of 2, which is not strictly | |
131 | * necessary but helps enforce the real limitation, which is | |
ea1754a0 | 132 | * that they should be multiples of PAGE_SIZE. |
7adae489 GB |
133 | * |
134 | * For UDP transports, a block plus NFS,RPC, and UDP headers | |
135 | * has to fit into the IP datagram limit of 64K. The largest | |
136 | * feasible number for all known page sizes is probably 48K, | |
137 | * but we choose 32K here. This is the same as the historical | |
138 | * Linux limit; someone who cares more about NFS/UDP performance | |
139 | * can test a larger number. | |
140 | * | |
141 | * For TCP transports we have more freedom. A size of 1MB is | |
142 | * chosen to match the client limit. Other OSes are known to | |
143 | * have larger limits, but those numbers are probably beyond | |
144 | * the point of diminishing returns. | |
1da177e4 | 145 | */ |
7adae489 GB |
146 | #define RPCSVC_MAXPAYLOAD (1*1024*1024u) |
147 | #define RPCSVC_MAXPAYLOAD_TCP RPCSVC_MAXPAYLOAD | |
148 | #define RPCSVC_MAXPAYLOAD_UDP (32*1024u) | |
149 | ||
150 | extern u32 svc_max_payload(const struct svc_rqst *rqstp); | |
1da177e4 LT |
151 | |
152 | /* | |
153 | * RPC Requsts and replies are stored in one or more pages. | |
154 | * We maintain an array of pages for each server thread. | |
155 | * Requests are copied into these pages as they arrive. Remaining | |
156 | * pages are available to write the reply into. | |
157 | * | |
158 | * Pages are sent using ->sendpage so each server thread needs to | |
159 | * allocate more to replace those used in sending. To help keep track | |
160 | * of these pages we have a receive list where all pages initialy live, | |
161 | * and a send list where pages are moved to when there are to be part | |
162 | * of a reply. | |
163 | * | |
164 | * We use xdr_buf for holding responses as it fits well with NFS | |
165 | * read responses (that have a header, and some data pages, and possibly | |
166 | * a tail) and means we can share some client side routines. | |
167 | * | |
168 | * The xdr_buf.head kvec always points to the first page in the rq_*pages | |
169 | * list. The xdr_buf.pages pointer points to the second page on that | |
170 | * list. xdr_buf.tail points to the end of the first page. | |
171 | * This assumes that the non-page part of an rpc reply will fit | |
172 | * in a page - NFSd ensures this. lockd also has no trouble. | |
173 | * | |
174 | * Each request/reply pair can have at most one "payload", plus two pages, | |
175 | * one for the request, and one for the reply. | |
250f3915 N |
176 | * We using ->sendfile to return read data, we might need one extra page |
177 | * if the request is not page-aligned. So add another '1'. | |
1da177e4 | 178 | */ |
250f3915 N |
179 | #define RPCSVC_MAXPAGES ((RPCSVC_MAXPAYLOAD+PAGE_SIZE-1)/PAGE_SIZE \ |
180 | + 2 + 1) | |
1da177e4 | 181 | |
76994313 | 182 | static inline u32 svc_getnl(struct kvec *iov) |
1da177e4 | 183 | { |
76994313 | 184 | __be32 val, *vp; |
1da177e4 LT |
185 | vp = iov->iov_base; |
186 | val = *vp++; | |
187 | iov->iov_base = (void*)vp; | |
76994313 AD |
188 | iov->iov_len -= sizeof(__be32); |
189 | return ntohl(val); | |
190 | } | |
191 | ||
192 | static inline void svc_putnl(struct kvec *iov, u32 val) | |
193 | { | |
194 | __be32 *vp = iov->iov_base + iov->iov_len; | |
195 | *vp = htonl(val); | |
196 | iov->iov_len += sizeof(__be32); | |
197 | } | |
198 | ||
199 | static inline __be32 svc_getu32(struct kvec *iov) | |
200 | { | |
201 | __be32 val, *vp; | |
202 | vp = iov->iov_base; | |
203 | val = *vp++; | |
204 | iov->iov_base = (void*)vp; | |
205 | iov->iov_len -= sizeof(__be32); | |
1da177e4 LT |
206 | return val; |
207 | } | |
208 | ||
209 | static inline void svc_ungetu32(struct kvec *iov) | |
210 | { | |
76994313 | 211 | __be32 *vp = (__be32 *)iov->iov_base; |
1da177e4 LT |
212 | iov->iov_base = (void *)(vp - 1); |
213 | iov->iov_len += sizeof(*vp); | |
214 | } | |
215 | ||
76994313 | 216 | static inline void svc_putu32(struct kvec *iov, __be32 val) |
1da177e4 | 217 | { |
76994313 | 218 | __be32 *vp = iov->iov_base + iov->iov_len; |
1da177e4 | 219 | *vp = val; |
76994313 | 220 | iov->iov_len += sizeof(__be32); |
1da177e4 LT |
221 | } |
222 | ||
1da177e4 LT |
223 | /* |
224 | * The context of a single thread, including the request currently being | |
225 | * processed. | |
1da177e4 LT |
226 | */ |
227 | struct svc_rqst { | |
a7455442 | 228 | struct list_head rq_all; /* all threads list */ |
81244386 | 229 | struct rcu_head rq_rcu_head; /* for RCU deferred kfree */ |
57b1d3ba | 230 | struct svc_xprt * rq_xprt; /* transport ptr */ |
849a1cf1 | 231 | |
27459f09 CL |
232 | struct sockaddr_storage rq_addr; /* peer address */ |
233 | size_t rq_addrlen; | |
849a1cf1 MJ |
234 | struct sockaddr_storage rq_daddr; /* dest addr of request |
235 | * - reply from here */ | |
236 | size_t rq_daddrlen; | |
1da177e4 LT |
237 | |
238 | struct svc_serv * rq_server; /* RPC service definition */ | |
3262c816 | 239 | struct svc_pool * rq_pool; /* thread pool */ |
1da177e4 LT |
240 | struct svc_procedure * rq_procinfo; /* procedure info */ |
241 | struct auth_ops * rq_authop; /* authentication flavour */ | |
242 | struct svc_cred rq_cred; /* auth info */ | |
5148bf4e | 243 | void * rq_xprt_ctxt; /* transport specific context ptr */ |
1da177e4 LT |
244 | struct svc_deferred_req*rq_deferred; /* deferred request we are replaying */ |
245 | ||
260c1d12 | 246 | size_t rq_xprt_hlen; /* xprt header len */ |
1da177e4 LT |
247 | struct xdr_buf rq_arg; |
248 | struct xdr_buf rq_res; | |
44524359 N |
249 | struct page * rq_pages[RPCSVC_MAXPAGES]; |
250 | struct page * *rq_respages; /* points into rq_pages */ | |
afc59400 | 251 | struct page * *rq_next_page; /* next reply page to use */ |
2825a7f9 | 252 | struct page * *rq_page_end; /* one past the last page */ |
1da177e4 | 253 | |
3cc03b16 N |
254 | struct kvec rq_vec[RPCSVC_MAXPAGES]; /* generally useful.. */ |
255 | ||
d8ed029d | 256 | __be32 rq_xid; /* transmission id */ |
1da177e4 LT |
257 | u32 rq_prog; /* program number */ |
258 | u32 rq_vers; /* program version */ | |
259 | u32 rq_proc; /* procedure number */ | |
260 | u32 rq_prot; /* IP protocol */ | |
62978b3c | 261 | int rq_cachetype; /* catering to nfsd */ |
4d152e2c | 262 | #define RQ_SECURE (0) /* secure port */ |
7501cc2b | 263 | #define RQ_LOCAL (1) /* local request */ |
30660e04 | 264 | #define RQ_USEDEFERRAL (2) /* use deferral */ |
78b65eb3 | 265 | #define RQ_DROPME (3) /* drop current reply */ |
779fb0f3 JL |
266 | #define RQ_SPLICE_OK (4) /* turned off in gss privacy |
267 | * to prevent encrypting page | |
268 | * cache pages */ | |
81244386 | 269 | #define RQ_VICTIM (5) /* about to be shut down */ |
b1691bc0 | 270 | #define RQ_BUSY (6) /* request is busy */ |
4d152e2c | 271 | unsigned long rq_flags; /* flags field */ |
1da177e4 | 272 | |
1da177e4 LT |
273 | void * rq_argp; /* decoded arguments */ |
274 | void * rq_resp; /* xdr'd results */ | |
275 | void * rq_auth_data; /* flavor-specific data */ | |
a5cddc88 BF |
276 | int rq_auth_slack; /* extra space xdr code |
277 | * should leave in head | |
278 | * for krb5i, krb5p. | |
279 | */ | |
1da177e4 LT |
280 | int rq_reserved; /* space on socket outq |
281 | * reserved for this request | |
282 | */ | |
283 | ||
284 | struct cache_req rq_chandle; /* handle passed to caches for | |
285 | * request delaying | |
286 | */ | |
287 | /* Catering to nfsd */ | |
288 | struct auth_domain * rq_client; /* RPC peer info */ | |
3ab4d8b1 | 289 | struct auth_domain * rq_gssclient; /* "gss/"-style peer info */ |
1da177e4 | 290 | struct svc_cacherep * rq_cacherep; /* cache info */ |
a7455442 | 291 | struct task_struct *rq_task; /* service thread */ |
b1691bc0 | 292 | spinlock_t rq_lock; /* per-request lock */ |
1da177e4 LT |
293 | }; |
294 | ||
9695c705 SK |
295 | #define SVC_NET(svc_rqst) (svc_rqst->rq_xprt->xpt_net) |
296 | ||
27459f09 CL |
297 | /* |
298 | * Rigorous type checking on sockaddr type conversions | |
299 | */ | |
5344b12d | 300 | static inline struct sockaddr_in *svc_addr_in(const struct svc_rqst *rqst) |
27459f09 CL |
301 | { |
302 | return (struct sockaddr_in *) &rqst->rq_addr; | |
303 | } | |
304 | ||
5344b12d | 305 | static inline struct sockaddr_in6 *svc_addr_in6(const struct svc_rqst *rqst) |
95756482 CL |
306 | { |
307 | return (struct sockaddr_in6 *) &rqst->rq_addr; | |
308 | } | |
309 | ||
5344b12d | 310 | static inline struct sockaddr *svc_addr(const struct svc_rqst *rqst) |
27459f09 CL |
311 | { |
312 | return (struct sockaddr *) &rqst->rq_addr; | |
313 | } | |
314 | ||
849a1cf1 MJ |
315 | static inline struct sockaddr_in *svc_daddr_in(const struct svc_rqst *rqst) |
316 | { | |
317 | return (struct sockaddr_in *) &rqst->rq_daddr; | |
318 | } | |
319 | ||
320 | static inline struct sockaddr_in6 *svc_daddr_in6(const struct svc_rqst *rqst) | |
321 | { | |
322 | return (struct sockaddr_in6 *) &rqst->rq_daddr; | |
323 | } | |
324 | ||
325 | static inline struct sockaddr *svc_daddr(const struct svc_rqst *rqst) | |
326 | { | |
327 | return (struct sockaddr *) &rqst->rq_daddr; | |
328 | } | |
329 | ||
1da177e4 LT |
330 | /* |
331 | * Check buffer bounds after decoding arguments | |
332 | */ | |
333 | static inline int | |
d8ed029d | 334 | xdr_argsize_check(struct svc_rqst *rqstp, __be32 *p) |
1da177e4 LT |
335 | { |
336 | char *cp = (char *)p; | |
337 | struct kvec *vec = &rqstp->rq_arg.head[0]; | |
0ba7536d N |
338 | return cp >= (char*)vec->iov_base |
339 | && cp <= (char*)vec->iov_base + vec->iov_len; | |
1da177e4 LT |
340 | } |
341 | ||
342 | static inline int | |
d8ed029d | 343 | xdr_ressize_check(struct svc_rqst *rqstp, __be32 *p) |
1da177e4 LT |
344 | { |
345 | struct kvec *vec = &rqstp->rq_res.head[0]; | |
346 | char *cp = (char*)p; | |
347 | ||
348 | vec->iov_len = cp - (char*)vec->iov_base; | |
349 | ||
350 | return vec->iov_len <= PAGE_SIZE; | |
351 | } | |
352 | ||
44524359 | 353 | static inline void svc_free_res_pages(struct svc_rqst *rqstp) |
a257cdd0 | 354 | { |
afc59400 BF |
355 | while (rqstp->rq_next_page != rqstp->rq_respages) { |
356 | struct page **pp = --rqstp->rq_next_page; | |
44524359 N |
357 | if (*pp) { |
358 | put_page(*pp); | |
359 | *pp = NULL; | |
1da177e4 LT |
360 | } |
361 | } | |
362 | } | |
363 | ||
1da177e4 LT |
364 | struct svc_deferred_req { |
365 | u32 prot; /* protocol (UDP or TCP) */ | |
8c7b0172 | 366 | struct svc_xprt *xprt; |
24422222 CL |
367 | struct sockaddr_storage addr; /* where reply must go */ |
368 | size_t addrlen; | |
849a1cf1 MJ |
369 | struct sockaddr_storage daddr; /* where reply must come from */ |
370 | size_t daddrlen; | |
1da177e4 | 371 | struct cache_deferred_req handle; |
260c1d12 | 372 | size_t xprt_hlen; |
1da177e4 | 373 | int argslen; |
d8ed029d | 374 | __be32 args[0]; |
1da177e4 LT |
375 | }; |
376 | ||
377 | /* | |
9ba02638 | 378 | * List of RPC programs on the same transport endpoint |
1da177e4 LT |
379 | */ |
380 | struct svc_program { | |
9ba02638 | 381 | struct svc_program * pg_next; /* other programs (same xprt) */ |
1da177e4 LT |
382 | u32 pg_prog; /* program number */ |
383 | unsigned int pg_lovers; /* lowest version */ | |
28303ca3 | 384 | unsigned int pg_hivers; /* highest version */ |
1da177e4 LT |
385 | unsigned int pg_nvers; /* number of versions */ |
386 | struct svc_version ** pg_vers; /* version array */ | |
387 | char * pg_name; /* service name */ | |
388 | char * pg_class; /* class name: services sharing authentication */ | |
389 | struct svc_stat * pg_stats; /* rpc statistics */ | |
390 | int (*pg_authenticate)(struct svc_rqst *); | |
391 | }; | |
392 | ||
393 | /* | |
394 | * RPC program version | |
395 | */ | |
396 | struct svc_version { | |
397 | u32 vs_vers; /* version number */ | |
398 | u32 vs_nproc; /* number of procedures */ | |
399 | struct svc_procedure * vs_proc; /* per-procedure info */ | |
400 | u32 vs_xdrsize; /* xdrsize needed for this version */ | |
401 | ||
7e55b59b | 402 | unsigned int vs_hidden : 1, /* Don't register with portmapper. |
bc5fea42 | 403 | * Only used for nfsacl so far. */ |
7e55b59b KM |
404 | vs_rpcb_optnl:1;/* Don't care the result of register. |
405 | * Only used for nfsv4. */ | |
bc5fea42 | 406 | |
1da177e4 LT |
407 | /* Override dispatch function (e.g. when caching replies). |
408 | * A return value of 0 means drop the request. | |
409 | * vs_dispatch == NULL means use default dispatcher. | |
410 | */ | |
d8ed029d | 411 | int (*vs_dispatch)(struct svc_rqst *, __be32 *); |
1da177e4 LT |
412 | }; |
413 | ||
414 | /* | |
415 | * RPC procedure info | |
416 | */ | |
7111c66e | 417 | typedef __be32 (*svc_procfunc)(struct svc_rqst *, void *argp, void *resp); |
1da177e4 LT |
418 | struct svc_procedure { |
419 | svc_procfunc pc_func; /* process the request */ | |
420 | kxdrproc_t pc_decode; /* XDR decode args */ | |
421 | kxdrproc_t pc_encode; /* XDR encode result */ | |
422 | kxdrproc_t pc_release; /* XDR free result */ | |
423 | unsigned int pc_argsize; /* argument struct size */ | |
424 | unsigned int pc_ressize; /* result struct size */ | |
425 | unsigned int pc_count; /* call count */ | |
426 | unsigned int pc_cachetype; /* cache info (NFS) */ | |
427 | unsigned int pc_xdrressize; /* maximum size of XDR reply */ | |
428 | }; | |
429 | ||
d70bc0c6 JL |
430 | /* |
431 | * Mode for mapping cpus to pools. | |
432 | */ | |
433 | enum { | |
434 | SVC_POOL_AUTO = -1, /* choose one of the others */ | |
435 | SVC_POOL_GLOBAL, /* no mapping, just a single global pool | |
436 | * (legacy & UP mode) */ | |
437 | SVC_POOL_PERCPU, /* one pool per cpu */ | |
438 | SVC_POOL_PERNODE /* one pool per numa node */ | |
439 | }; | |
440 | ||
441 | struct svc_pool_map { | |
442 | int count; /* How many svc_servs use us */ | |
443 | int mode; /* Note: int not enum to avoid | |
444 | * warnings about "enumeration value | |
445 | * not handled in switch" */ | |
446 | unsigned int npools; | |
447 | unsigned int *pool_to; /* maps pool id to cpu or node */ | |
448 | unsigned int *to_pool; /* maps cpu or node to pool id */ | |
449 | }; | |
450 | ||
451 | extern struct svc_pool_map svc_pool_map; | |
452 | ||
1da177e4 LT |
453 | /* |
454 | * Function prototypes. | |
455 | */ | |
bb2224df | 456 | int svc_rpcb_setup(struct svc_serv *serv, struct net *net); |
5ecebb7c | 457 | void svc_rpcb_cleanup(struct svc_serv *serv, struct net *net); |
9793f7c8 | 458 | int svc_bind(struct svc_serv *serv, struct net *net); |
49a9072f | 459 | struct svc_serv *svc_create(struct svc_program *, unsigned int, |
ea126e74 | 460 | struct svc_serv_ops *); |
1b6dc1df JL |
461 | struct svc_rqst *svc_rqst_alloc(struct svc_serv *serv, |
462 | struct svc_pool *pool, int node); | |
0113ab34 | 463 | struct svc_rqst *svc_prepare_thread(struct svc_serv *serv, |
11fd165c | 464 | struct svc_pool *pool, int node); |
1b6dc1df | 465 | void svc_rqst_free(struct svc_rqst *); |
1da177e4 | 466 | void svc_exit_thread(struct svc_rqst *); |
d70bc0c6 JL |
467 | unsigned int svc_pool_map_get(void); |
468 | void svc_pool_map_put(void); | |
a7455442 | 469 | struct svc_serv * svc_create_pooled(struct svc_program *, unsigned int, |
758f62ff | 470 | struct svc_serv_ops *); |
a7455442 | 471 | int svc_set_num_threads(struct svc_serv *, struct svc_pool *, int); |
03cf6c9f | 472 | int svc_pool_stats_open(struct svc_serv *serv, struct file *file); |
1da177e4 | 473 | void svc_destroy(struct svc_serv *); |
bb2224df | 474 | void svc_shutdown_net(struct svc_serv *, struct net *); |
6fb2b47f | 475 | int svc_process(struct svc_rqst *); |
4d6bbb62 RL |
476 | int bc_svc_process(struct svc_serv *, struct rpc_rqst *, |
477 | struct svc_rqst *); | |
5247fab5 | 478 | int svc_register(const struct svc_serv *, struct net *, const int, |
4b62e58c | 479 | const unsigned short, const unsigned short); |
a26cfad6 | 480 | |
1da177e4 LT |
481 | void svc_wake_up(struct svc_serv *); |
482 | void svc_reserve(struct svc_rqst *rqstp, int space); | |
bfd24160 | 483 | struct svc_pool * svc_pool_for_cpu(struct svc_serv *serv, int cpu); |
ad06e4bd CL |
484 | char * svc_print_addr(struct svc_rqst *, char *, size_t); |
485 | ||
486 | #define RPC_MAX_ADDRBUFLEN (63U) | |
1da177e4 | 487 | |
cd123012 JL |
488 | /* |
489 | * When we want to reduce the size of the reserved space in the response | |
490 | * buffer, we need to take into account the size of any checksum data that | |
491 | * may be at the end of the packet. This is difficult to determine exactly | |
492 | * for all cases without actually generating the checksum, so we just use a | |
493 | * static value. | |
494 | */ | |
fbb7878c | 495 | static inline void svc_reserve_auth(struct svc_rqst *rqstp, int space) |
cd123012 | 496 | { |
a5cddc88 | 497 | svc_reserve(rqstp, space + rqstp->rq_auth_slack); |
cd123012 JL |
498 | } |
499 | ||
1da177e4 | 500 | #endif /* SUNRPC_SVC_H */ |