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24 * Copyright (c) 2012, 2016, Intel Corporation.
27 * lustre/target/tgt_internal.h
29 * Lustre Unified Target header file
31 * Author: Mikhail Pershin <mike.pershin@intel.com>
34 #ifndef _TG_INTERNAL_H
35 #define _TG_INTERNAL_H
37 #include <lustre_net.h>
38 #include <lustre/lustre_idl.h>
39 #include <lu_target.h>
40 #include <lustre_export.h>
41 #include <lustre_fid.h>
42 #include <lustre_fld.h>
43 #include <lustre_req_layout.h>
44 #include <lustre_sec.h>
46 extern int (*tgt_lfsck_in_notify_local)(const struct lu_env *env,
47 struct dt_device *key,
48 struct lfsck_req_local *lrl,
51 * Common data shared by tg-level handlers. This is allocated per-thread to
52 * reduce stack consumption.
54 struct tgt_thread_info {
55 /* server and client data buffers */
56 struct lr_server_data tti_lsd;
57 struct lsd_client_data tti_lcd;
58 struct lsd_reply_data tti_lrd;
59 struct lu_buf tti_buf;
62 struct lu_attr tti_attr;
63 struct lu_fid tti_fid1;
65 /* transno storage during last_rcvd update */
67 __u32 tti_has_trans:1,
70 /* Updates data for OUT target */
71 struct thandle_exec_args tti_tea;
74 /* for tgt_readpage() */
75 struct lu_rdpg tti_rdpg;
76 /* for tgt_sendpage() */
77 struct l_wait_info tti_wait_info;
80 struct dt_object_format tti_update_dof;
81 struct object_update_reply *tti_update_reply;
82 struct object_update *tti_update;
83 int tti_update_reply_index;
85 struct dt_object *tti_dt_object;
86 struct l_wait_info tti_wait_info;
88 struct obd_statfs osfs; /* for obd_statfs() in OFD/MDT */
90 struct lfsck_req_local tti_lrl;
91 struct dt_insert_rec tti_rec;
94 extern struct lu_context_key tgt_thread_key;
96 static inline struct tgt_thread_info *tgt_th_info(const struct lu_env *env)
98 struct tgt_thread_info *tti;
100 tti = lu_context_key_get(&env->le_ctx, &tgt_thread_key);
105 #define MGS_SERVICE_WATCHDOG_FACTOR (2)
107 int tgt_request_handle(struct ptlrpc_request *req);
109 /* check if request's xid is equal to last one or not*/
110 static inline int req_xid_is_last(struct ptlrpc_request *req)
112 struct lsd_client_data *lcd = req->rq_export->exp_target_data.ted_lcd;
114 LASSERT(lcd != NULL);
115 return (req->rq_xid == lcd->lcd_last_xid ||
116 req->rq_xid == lcd->lcd_last_close_xid);
119 static inline char *dt_obd_name(struct dt_device *dt)
121 return dt->dd_lu_dev.ld_obd->obd_name;
125 int out_tx_create_exec(const struct lu_env *env, struct thandle *th,
127 struct tx_arg *tx_add_exec(struct thandle_exec_args *ta,
128 tx_exec_func_t func, tx_exec_func_t undo,
129 const char *file, int line);
131 int out_create_add_exec(const struct lu_env *env, struct dt_object *obj,
132 struct lu_attr *attr, struct lu_fid *parent_fid,
133 struct dt_object_format *dof,
134 struct thandle_exec_args *ta, struct thandle *th,
135 struct object_update_reply *reply,
136 int index, const char *file, int line);
138 int out_attr_set_add_exec(const struct lu_env *env, struct dt_object *dt_obj,
139 const struct lu_attr *attr,
140 struct thandle_exec_args *ta, struct thandle *th,
141 struct object_update_reply *reply, int index,
142 const char *file, int line);
144 int out_write_add_exec(const struct lu_env *env, struct dt_object *dt_obj,
145 const struct lu_buf *buf, loff_t pos,
146 struct thandle_exec_args *ta, struct thandle *th,
147 struct object_update_reply *reply, int index,
148 const char *file, int line);
150 int out_xattr_set_add_exec(const struct lu_env *env, struct dt_object *dt_obj,
151 const struct lu_buf *buf, const char *name,
152 int flags, struct thandle_exec_args *ta,
154 struct object_update_reply *reply, int index,
155 const char *file, int line);
157 int out_xattr_del_add_exec(const struct lu_env *env, struct dt_object *dt_obj,
158 const char *name, struct thandle_exec_args *ta,
160 struct object_update_reply *reply, int index,
161 const char *file, int line);
163 int out_ref_add_add_exec(const struct lu_env *env, struct dt_object *dt_obj,
164 struct thandle_exec_args *ta, struct thandle *th,
165 struct object_update_reply *reply, int index,
166 const char *file, int line);
168 int out_ref_del_add_exec(const struct lu_env *env, struct dt_object *dt_obj,
169 struct thandle_exec_args *ta, struct thandle *th,
170 struct object_update_reply *reply, int index,
171 const char *file, int line);
173 int out_index_insert_add_exec(const struct lu_env *env,
174 struct dt_object *dt_obj,
175 const struct dt_rec *rec,
176 const struct dt_key *key,
177 struct thandle_exec_args *ta,
179 struct object_update_reply *reply,
180 int index, const char *file, int line);
182 int out_index_delete_add_exec(const struct lu_env *env,
183 struct dt_object *dt_obj,
184 const struct dt_key *key,
185 struct thandle_exec_args *ta,
187 struct object_update_reply *reply,
188 int index, const char *file, int line);
190 int out_destroy_add_exec(const struct lu_env *env, struct dt_object *dt_obj,
191 struct thandle_exec_args *ta, struct thandle *th,
192 struct object_update_reply *reply,
193 int index, const char *file, int line);
195 /* Update handlers */
196 int out_handle(struct tgt_session_info *tsi);
198 #define out_tx_create(env, obj, attr, fid, dof, ta, th, reply, idx) \
199 out_create_add_exec(env, obj, attr, fid, dof, ta, th, reply, idx, \
202 #define out_tx_attr_set(env, obj, attr, ta, th, reply, idx) \
203 out_attr_set_add_exec(env, obj, attr, ta, th, reply, idx, \
206 #define out_tx_xattr_set(env, obj, buf, name, fl, ta, th, reply, idx) \
207 out_xattr_set_add_exec(env, obj, buf, name, fl, ta, th, reply, idx, \
210 #define out_tx_xattr_del(env, obj, name, ta, th, reply, idx) \
211 out_xattr_del_add_exec(env, obj, name, ta, th, reply, idx, \
214 #define out_tx_ref_add(env, obj, ta, th, reply, idx) \
215 out_ref_add_add_exec(env, obj, ta, th, reply, idx, \
218 #define out_tx_ref_del(env, obj, ta, th, reply, idx) \
219 out_ref_del_add_exec(env, obj, ta, th, reply, idx, \
222 #define out_tx_index_insert(env, obj, rec, key, ta, th, reply, idx) \
223 out_index_insert_add_exec(env, obj, rec, key, ta, th, reply, idx, \
226 #define out_tx_index_delete(env, obj, key, ta, th, reply, idx) \
227 out_index_delete_add_exec(env, obj, key, ta, th, reply, idx, \
230 #define out_tx_destroy(env, obj, ta, th, reply, idx) \
231 out_destroy_add_exec(env, obj, ta, th, reply, idx, \
234 #define out_tx_write(env, obj, buf, pos, ta, th, reply, idx) \
235 out_write_add_exec(env, obj, buf, pos, ta, th, reply, idx,\
238 const char *update_op_str(__u16 opcode);
240 extern struct page *tgt_page_to_corrupt;
242 int tgt_server_data_init(const struct lu_env *env, struct lu_target *tgt);
243 int tgt_txn_start_cb(const struct lu_env *env, struct thandle *th,
245 int tgt_txn_stop_cb(const struct lu_env *env, struct thandle *th,
247 int tgt_handle_received_xid(struct obd_export *exp, __u64 rcvd_xid);
248 int tgt_handle_tag(struct obd_export *exp, __u16 tag);
250 void update_records_dump(const struct update_records *records,
251 unsigned int mask, bool dump_updates);
252 int check_and_prepare_update_record(const struct lu_env *env,
253 struct thandle_update_records *tur);
254 struct update_thread_info {
255 struct lu_attr uti_attr;
256 struct lu_fid uti_fid;
257 struct lu_buf uti_buf;
258 struct thandle_update_records uti_tur;
259 struct obdo uti_obdo;
260 struct thandle_exec_args uti_tea;
261 struct dt_insert_rec uti_rec;
262 struct distribute_txn_replay_req *uti_dtrq;
265 extern struct lu_context_key update_thread_key;
267 static inline struct update_thread_info *
268 update_env_info(const struct lu_env *env)
270 struct update_thread_info *uti;
272 uti = lu_context_key_get(&env->le_ctx, &update_thread_key);
273 LASSERT(uti != NULL);
277 void update_info_init(void);
278 void update_info_fini(void);
279 struct sub_thandle *create_sub_thandle(struct top_multiple_thandle *tmt,
280 struct dt_device *dt_dev);
281 int sub_thandle_trans_create(const struct lu_env *env,
282 struct top_thandle *top_th,
283 struct sub_thandle *st);
284 void distribute_txn_insert_by_batchid(struct top_multiple_thandle *new);
285 int top_trans_create_tmt(const struct lu_env *env,
286 struct top_thandle *top_th);
288 void tgt_cancel_slc_locks(struct lu_target *tgt, __u64 transno);
289 void barrier_init(void);
290 void barrier_fini(void);
291 #endif /* _TG_INTERNAL_H */