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39#ifndef PTLRPC_INTERNAL_H
40#define PTLRPC_INTERNAL_H
41
42#include "../ldlm/ldlm_internal.h"
43
44struct ldlm_namespace;
45struct obd_import;
46struct ldlm_res_id;
47struct ptlrpc_request_set;
48extern int test_req_buffer_pressure;
49extern struct mutex ptlrpc_all_services_mutex;
50
51int ptlrpc_start_thread(struct ptlrpc_service_part *svcpt, int wait);
52
53int ptlrpcd_start(int index, int max, const char *name, struct ptlrpcd_ctl *pc);
54
55
56struct ptlrpc_bulk_desc *ptlrpc_new_bulk(unsigned npages, unsigned max_brw,
57 unsigned type, unsigned portal);
58int ptlrpc_request_cache_init(void);
59void ptlrpc_request_cache_fini(void);
60struct ptlrpc_request *ptlrpc_request_cache_alloc(gfp_t flags);
61void ptlrpc_request_cache_free(struct ptlrpc_request *req);
62void ptlrpc_init_xid(void);
63
64
65int ptlrpc_init_portals(void);
66void ptlrpc_exit_portals(void);
67
68void ptlrpc_request_handle_notconn(struct ptlrpc_request *);
69void lustre_assert_wire_constants(void);
70int ptlrpc_import_in_recovery(struct obd_import *imp);
71int ptlrpc_set_import_discon(struct obd_import *imp, __u32 conn_cnt);
72void ptlrpc_handle_failed_import(struct obd_import *imp);
73int ptlrpc_replay_next(struct obd_import *imp, int *inflight);
74void ptlrpc_initiate_recovery(struct obd_import *imp);
75
76int lustre_unpack_req_ptlrpc_body(struct ptlrpc_request *req, int offset);
77int lustre_unpack_rep_ptlrpc_body(struct ptlrpc_request *req, int offset);
78
79int ptlrpc_sysfs_register_service(struct kset *parent,
80 struct ptlrpc_service *svc);
81void ptlrpc_sysfs_unregister_service(struct ptlrpc_service *svc);
82
83void ptlrpc_ldebugfs_register_service(struct dentry *debugfs_entry,
84 struct ptlrpc_service *svc);
85void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc);
86void ptlrpc_lprocfs_rpc_sent(struct ptlrpc_request *req, long amount);
87void ptlrpc_lprocfs_do_request_stat(struct ptlrpc_request *req,
88 long q_usec, long work_usec);
89
90
91
92
93
94
95
96
97struct nrs_core {
98
99
100
101
102 struct mutex nrs_mutex;
103
104
105
106
107
108
109 struct list_head nrs_policies;
110
111};
112
113int ptlrpc_service_nrs_setup(struct ptlrpc_service *svc);
114void ptlrpc_service_nrs_cleanup(struct ptlrpc_service *svc);
115
116void ptlrpc_nrs_req_initialize(struct ptlrpc_service_part *svcpt,
117 struct ptlrpc_request *req, bool hp);
118void ptlrpc_nrs_req_finalize(struct ptlrpc_request *req);
119void ptlrpc_nrs_req_stop_nolock(struct ptlrpc_request *req);
120void ptlrpc_nrs_req_add(struct ptlrpc_service_part *svcpt,
121 struct ptlrpc_request *req, bool hp);
122
123struct ptlrpc_request *
124ptlrpc_nrs_req_get_nolock0(struct ptlrpc_service_part *svcpt, bool hp,
125 bool peek, bool force);
126
127static inline struct ptlrpc_request *
128ptlrpc_nrs_req_get_nolock(struct ptlrpc_service_part *svcpt, bool hp,
129 bool force)
130{
131 return ptlrpc_nrs_req_get_nolock0(svcpt, hp, false, force);
132}
133
134static inline struct ptlrpc_request *
135ptlrpc_nrs_req_peek_nolock(struct ptlrpc_service_part *svcpt, bool hp)
136{
137 return ptlrpc_nrs_req_get_nolock0(svcpt, hp, true, false);
138}
139
140void ptlrpc_nrs_req_del_nolock(struct ptlrpc_request *req);
141bool ptlrpc_nrs_req_pending_nolock(struct ptlrpc_service_part *svcpt, bool hp);
142
143int ptlrpc_nrs_policy_control(const struct ptlrpc_service *svc,
144 enum ptlrpc_nrs_queue_type queue, char *name,
145 enum ptlrpc_nrs_ctl opc, bool single, void *arg);
146
147int ptlrpc_nrs_init(void);
148void ptlrpc_nrs_fini(void);
149
150static inline bool nrs_svcpt_has_hp(const struct ptlrpc_service_part *svcpt)
151{
152 return svcpt->scp_nrs_hp != NULL;
153}
154
155static inline bool nrs_svc_has_hp(const struct ptlrpc_service *svc)
156{
157
158
159
160
161 return nrs_svcpt_has_hp(svc->srv_parts[0]);
162}
163
164static inline
165struct ptlrpc_nrs *nrs_svcpt2nrs(struct ptlrpc_service_part *svcpt, bool hp)
166{
167 LASSERT(ergo(hp, nrs_svcpt_has_hp(svcpt)));
168 return hp ? svcpt->scp_nrs_hp : &svcpt->scp_nrs_reg;
169}
170
171static inline int nrs_pol2cptid(const struct ptlrpc_nrs_policy *policy)
172{
173 return policy->pol_nrs->nrs_svcpt->scp_cpt;
174}
175
176static inline
177struct ptlrpc_service *nrs_pol2svc(struct ptlrpc_nrs_policy *policy)
178{
179 return policy->pol_nrs->nrs_svcpt->scp_service;
180}
181
182static inline
183struct ptlrpc_service_part *nrs_pol2svcpt(struct ptlrpc_nrs_policy *policy)
184{
185 return policy->pol_nrs->nrs_svcpt;
186}
187
188static inline
189struct cfs_cpt_table *nrs_pol2cptab(struct ptlrpc_nrs_policy *policy)
190{
191 return nrs_pol2svc(policy)->srv_cptable;
192}
193
194static inline struct ptlrpc_nrs_resource *
195nrs_request_resource(struct ptlrpc_nrs_request *nrq)
196{
197 LASSERT(nrq->nr_initialized);
198 LASSERT(!nrq->nr_finalized);
199
200 return nrq->nr_res_ptrs[nrq->nr_res_idx];
201}
202
203static inline
204struct ptlrpc_nrs_policy *nrs_request_policy(struct ptlrpc_nrs_request *nrq)
205{
206 return nrs_request_resource(nrq)->res_policy;
207}
208
209#define NRS_LPROCFS_QUANTUM_NAME_REG "reg_quantum:"
210#define NRS_LPROCFS_QUANTUM_NAME_HP "hp_quantum:"
211
212
213
214
215#define LPROCFS_NRS_QUANTUM_MAX 65535
216
217
218
219
220
221#define LPROCFS_NRS_WR_QUANTUM_MAX_CMD \
222 sizeof(NRS_LPROCFS_QUANTUM_NAME_REG __stringify(LPROCFS_NRS_QUANTUM_MAX) " " \
223 NRS_LPROCFS_QUANTUM_NAME_HP __stringify(LPROCFS_NRS_QUANTUM_MAX))
224
225
226
227int ptlrpc_expire_one_request(struct ptlrpc_request *req, int async_unlink);
228
229
230void ptlrpc_fill_bulk_md(lnet_md_t *md, struct ptlrpc_bulk_desc *desc,
231 int mdcnt);
232void ptlrpc_add_bulk_page(struct ptlrpc_bulk_desc *desc, struct page *page,
233 int pageoffset, int len);
234
235
236struct ptlrpc_reply_state *
237lustre_get_emerg_rs(struct ptlrpc_service_part *svcpt);
238void lustre_put_emerg_rs(struct ptlrpc_reply_state *rs);
239
240
241int ptlrpc_start_pinger(void);
242int ptlrpc_stop_pinger(void);
243void ptlrpc_pinger_sending_on_import(struct obd_import *imp);
244void ptlrpc_pinger_commit_expected(struct obd_import *imp);
245void ptlrpc_pinger_wake_up(void);
246void ptlrpc_ping_import_soon(struct obd_import *imp);
247int ping_evictor_wake(struct obd_export *exp);
248
249
250int sptlrpc_null_init(void);
251void sptlrpc_null_fini(void);
252
253
254int sptlrpc_plain_init(void);
255void sptlrpc_plain_fini(void);
256
257
258int sptlrpc_enc_pool_init(void);
259void sptlrpc_enc_pool_fini(void);
260int sptlrpc_proc_enc_pool_seq_show(struct seq_file *m, void *v);
261
262
263int sptlrpc_lproc_init(void);
264void sptlrpc_lproc_fini(void);
265
266
267int sptlrpc_gc_init(void);
268void sptlrpc_gc_fini(void);
269
270
271void sptlrpc_conf_choose_flavor(enum lustre_sec_part from,
272 enum lustre_sec_part to,
273 struct obd_uuid *target,
274 lnet_nid_t nid,
275 struct sptlrpc_flavor *sf);
276int sptlrpc_conf_init(void);
277void sptlrpc_conf_fini(void);
278
279
280int sptlrpc_init(void);
281void sptlrpc_fini(void);
282
283static inline int ll_rpc_recoverable_error(int rc)
284{
285 return (rc == -ENOTCONN || rc == -ENODEV);
286}
287
288static inline int tgt_mod_init(void)
289{
290 return 0;
291}
292
293static inline void tgt_mod_exit(void)
294{
295 return;
296}
297
298static inline void ptlrpc_reqset_put(struct ptlrpc_request_set *set)
299{
300 if (atomic_dec_and_test(&set->set_refcount))
301 OBD_FREE_PTR(set);
302}
303#endif
304