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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
79#if defined (CONFIG_PROC_FS)
80void ptlrpc_lprocfs_register_service(struct proc_dir_entry *proc_entry,
81 struct ptlrpc_service *svc);
82void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc);
83void ptlrpc_lprocfs_rpc_sent(struct ptlrpc_request *req, long amount);
84void ptlrpc_lprocfs_do_request_stat(struct ptlrpc_request *req,
85 long q_usec, long work_usec);
86#else
87#define ptlrpc_lprocfs_register_service(params...) do {} while (0)
88#define ptlrpc_lprocfs_unregister_service(params...) do {} while (0)
89#define ptlrpc_lprocfs_rpc_sent(params...) do {} while (0)
90#define ptlrpc_lprocfs_do_request_stat(params...) do {} while (0)
91#endif
92
93
94
95
96
97
98
99
100struct nrs_core {
101
102
103
104
105 struct mutex nrs_mutex;
106
107
108
109
110
111
112 struct list_head nrs_policies;
113
114};
115
116int ptlrpc_service_nrs_setup(struct ptlrpc_service *svc);
117void ptlrpc_service_nrs_cleanup(struct ptlrpc_service *svc);
118
119void ptlrpc_nrs_req_initialize(struct ptlrpc_service_part *svcpt,
120 struct ptlrpc_request *req, bool hp);
121void ptlrpc_nrs_req_finalize(struct ptlrpc_request *req);
122void ptlrpc_nrs_req_stop_nolock(struct ptlrpc_request *req);
123void ptlrpc_nrs_req_add(struct ptlrpc_service_part *svcpt,
124 struct ptlrpc_request *req, bool hp);
125
126struct ptlrpc_request *
127ptlrpc_nrs_req_get_nolock0(struct ptlrpc_service_part *svcpt, bool hp,
128 bool peek, bool force);
129
130static inline struct ptlrpc_request *
131ptlrpc_nrs_req_get_nolock(struct ptlrpc_service_part *svcpt, bool hp,
132 bool force)
133{
134 return ptlrpc_nrs_req_get_nolock0(svcpt, hp, false, force);
135}
136
137static inline struct ptlrpc_request *
138ptlrpc_nrs_req_peek_nolock(struct ptlrpc_service_part *svcpt, bool hp)
139{
140 return ptlrpc_nrs_req_get_nolock0(svcpt, hp, true, false);
141}
142
143void ptlrpc_nrs_req_del_nolock(struct ptlrpc_request *req);
144bool ptlrpc_nrs_req_pending_nolock(struct ptlrpc_service_part *svcpt, bool hp);
145
146int ptlrpc_nrs_policy_control(const struct ptlrpc_service *svc,
147 enum ptlrpc_nrs_queue_type queue, char *name,
148 enum ptlrpc_nrs_ctl opc, bool single, void *arg);
149
150int ptlrpc_nrs_init(void);
151void ptlrpc_nrs_fini(void);
152
153static inline bool nrs_svcpt_has_hp(const struct ptlrpc_service_part *svcpt)
154{
155 return svcpt->scp_nrs_hp != NULL;
156}
157
158static inline bool nrs_svc_has_hp(const struct ptlrpc_service *svc)
159{
160
161
162
163
164 return nrs_svcpt_has_hp(svc->srv_parts[0]);
165}
166
167static inline
168struct ptlrpc_nrs *nrs_svcpt2nrs(struct ptlrpc_service_part *svcpt, bool hp)
169{
170 LASSERT(ergo(hp, nrs_svcpt_has_hp(svcpt)));
171 return hp ? svcpt->scp_nrs_hp : &svcpt->scp_nrs_reg;
172}
173
174static inline int nrs_pol2cptid(const struct ptlrpc_nrs_policy *policy)
175{
176 return policy->pol_nrs->nrs_svcpt->scp_cpt;
177}
178
179static inline
180struct ptlrpc_service *nrs_pol2svc(struct ptlrpc_nrs_policy *policy)
181{
182 return policy->pol_nrs->nrs_svcpt->scp_service;
183}
184
185static inline
186struct ptlrpc_service_part *nrs_pol2svcpt(struct ptlrpc_nrs_policy *policy)
187{
188 return policy->pol_nrs->nrs_svcpt;
189}
190
191static inline
192struct cfs_cpt_table *nrs_pol2cptab(struct ptlrpc_nrs_policy *policy)
193{
194 return nrs_pol2svc(policy)->srv_cptable;
195}
196
197static inline struct ptlrpc_nrs_resource *
198nrs_request_resource(struct ptlrpc_nrs_request *nrq)
199{
200 LASSERT(nrq->nr_initialized);
201 LASSERT(!nrq->nr_finalized);
202
203 return nrq->nr_res_ptrs[nrq->nr_res_idx];
204}
205
206static inline
207struct ptlrpc_nrs_policy *nrs_request_policy(struct ptlrpc_nrs_request *nrq)
208{
209 return nrs_request_resource(nrq)->res_policy;
210}
211
212#define NRS_LPROCFS_QUANTUM_NAME_REG "reg_quantum:"
213#define NRS_LPROCFS_QUANTUM_NAME_HP "hp_quantum:"
214
215
216
217
218#define LPROCFS_NRS_QUANTUM_MAX 65535
219
220
221
222
223
224#define LPROCFS_NRS_WR_QUANTUM_MAX_CMD \
225 sizeof(NRS_LPROCFS_QUANTUM_NAME_REG __stringify(LPROCFS_NRS_QUANTUM_MAX) " " \
226 NRS_LPROCFS_QUANTUM_NAME_HP __stringify(LPROCFS_NRS_QUANTUM_MAX))
227
228
229
230int ptlrpc_expire_one_request(struct ptlrpc_request *req, int async_unlink);
231
232
233void ptlrpc_fill_bulk_md(lnet_md_t *md, struct ptlrpc_bulk_desc *desc,
234 int mdcnt);
235void ptlrpc_add_bulk_page(struct ptlrpc_bulk_desc *desc, struct page *page,
236 int pageoffset, int len);
237
238
239struct ptlrpc_reply_state *
240lustre_get_emerg_rs(struct ptlrpc_service_part *svcpt);
241void lustre_put_emerg_rs(struct ptlrpc_reply_state *rs);
242
243
244int ptlrpc_start_pinger(void);
245int ptlrpc_stop_pinger(void);
246void ptlrpc_pinger_sending_on_import(struct obd_import *imp);
247void ptlrpc_pinger_commit_expected(struct obd_import *imp);
248void ptlrpc_pinger_wake_up(void);
249void ptlrpc_ping_import_soon(struct obd_import *imp);
250int ping_evictor_wake(struct obd_export *exp);
251
252
253int sptlrpc_null_init(void);
254void sptlrpc_null_fini(void);
255
256
257int sptlrpc_plain_init(void);
258void sptlrpc_plain_fini(void);
259
260
261int sptlrpc_enc_pool_init(void);
262void sptlrpc_enc_pool_fini(void);
263int sptlrpc_proc_enc_pool_seq_show(struct seq_file *m, void *v);
264
265
266#if defined (CONFIG_PROC_FS)
267int sptlrpc_lproc_init(void);
268void sptlrpc_lproc_fini(void);
269#else
270static inline int sptlrpc_lproc_init(void)
271{ return 0; }
272static inline void sptlrpc_lproc_fini(void) {}
273#endif
274
275
276int sptlrpc_gc_init(void);
277void sptlrpc_gc_fini(void);
278
279
280void sptlrpc_conf_choose_flavor(enum lustre_sec_part from,
281 enum lustre_sec_part to,
282 struct obd_uuid *target,
283 lnet_nid_t nid,
284 struct sptlrpc_flavor *sf);
285int sptlrpc_conf_init(void);
286void sptlrpc_conf_fini(void);
287
288
289int sptlrpc_init(void);
290void sptlrpc_fini(void);
291
292static inline int ll_rpc_recoverable_error(int rc)
293{
294 return (rc == -ENOTCONN || rc == -ENODEV);
295}
296
297static inline int tgt_mod_init(void)
298{
299 return 0;
300}
301
302static inline void tgt_mod_exit(void)
303{
304 return;
305}
306
307static inline void ptlrpc_reqset_put(struct ptlrpc_request_set *set)
308{
309 if (atomic_dec_and_test(&set->set_refcount))
310 OBD_FREE_PTR(set);
311}
312#endif
313