Viewing: lu_target.h
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*/
#ifndef _LUSTRE_LU_TARGET_H
#define _LUSTRE_LU_TARGET_H
#include <lustre_quota.h>
#include <lustre_export.h>
#include <lustre_update.h>
#include <lustre_disk.h>
#include <lustre_lfsck.h>
#include <lu_object.h>
/* Each one represents a distribute transaction replay
* operation, and updates on each MDTs are linked to
* dtr_sub_list */
struct distribute_txn_replay_req {
/* update record, may be vmalloc'd */
struct llog_update_record *dtrq_lur;
int dtrq_lur_size;
/* linked to the distribute transaction replay
* list (tdtd_replay_list) */
struct list_head dtrq_list;
__u64 dtrq_master_transno;
__u64 dtrq_batchid;
__u64 dtrq_xid;
/* all of sub updates are linked here */
struct list_head dtrq_sub_list;
spinlock_t dtrq_sub_list_lock;
/* If the local update has been executed during replay */
__u32 dtrq_local_update_executed:1;
};
/* Each one represents a sub replay item under a distribute
* transaction. A distribute transaction will be operated in
* two or more MDTs, and updates on each MDT will be represented
* by this structure */
struct distribute_txn_replay_req_sub {
__u32 dtrqs_mdt_index;
/* All of cookies for the update will be linked here */
spinlock_t dtrqs_cookie_list_lock;
struct list_head dtrqs_cookie_list;
struct list_head dtrqs_list;
};
struct target_distribute_txn_data;
typedef int (*distribute_txn_replay_handler_t)(struct lu_env *env,
struct target_distribute_txn_data *tdtd,
struct distribute_txn_replay_req *dtrq);
typedef char *(*target_show_update_logs_retrievers_t)(void *data, int *size,
int *count);
struct target_distribute_txn_data {
/* Distribution ID is used to identify updates log on different
* MDTs for one operation */
spinlock_t tdtd_batchid_lock;
__u64 tdtd_batchid;
struct lu_target *tdtd_lut;
struct dt_object *tdtd_batchid_obj;
struct dt_device *tdtd_dt;
/* Committed batchid for distribute transaction */
__u64 tdtd_committed_batchid;
/* List for distribute transaction */
struct list_head tdtd_list;
/* Threads to manage distribute transaction */
struct task_struct *tdtd_commit_task;
atomic_t tdtd_refcount;
struct lu_env tdtd_env;
/* recovery update */
distribute_txn_replay_handler_t tdtd_replay_handler;
struct list_head tdtd_replay_list;
struct list_head tdtd_replay_finish_list;
spinlock_t tdtd_replay_list_lock;
/* last replay update transno */
__u32 tdtd_replay_ready:1;
/* Manage the llog recovery threads */
atomic_t tdtd_recovery_threads_count;
wait_queue_head_t tdtd_recovery_threads_waitq;
target_show_update_logs_retrievers_t
tdtd_show_update_logs_retrievers;
void *tdtd_show_retrievers_cbdata;
};
struct tg_grants_data {
/* grants: all values in bytes */
/* grant lock to protect all grant counters */
spinlock_t tgd_grant_lock;
/* total amount of dirty data reported by clients in incoming obdo */
u64 tgd_tot_dirty;
/* sum of filesystem space granted to clients for async writes */
u64 tgd_tot_granted;
/* grant used by I/Os in progress (between prepare and commit) */
u64 tgd_tot_pending;
/* amount of available space in percentage that is never used for
* grants, used on MDT to always keep space for metadata. */
u64 tgd_reserved_pcnt;
/* number of clients using grants */
int tgd_tot_granted_clients;
/* shall we grant space to clients not
* supporting OBD_CONNECT_GRANT_PARAM? */
int tgd_grant_compat_disable;
/* protect all statfs-related counters */
spinlock_t tgd_osfs_lock;
time64_t tgd_osfs_age;
int tgd_blockbits;
/* counters used during statfs update, protected by ofd_osfs_lock.
* record when some statfs refresh are in progress */
int tgd_statfs_inflight;
/* writes between prep & commit which might be accounted twice in
* ofd_osfs.os_bavail */
u64 tgd_osfs_unstable;
/* track writes completed while statfs refresh is underway.
* tracking is only effective when ofd_statfs_inflight > 1 */
u64 tgd_osfs_inflight;
/* statfs optimization: we cache a bit */
struct obd_statfs tgd_osfs;
};
struct lu_target {
struct obd_device *lut_obd;
struct dt_device *lut_bottom;
struct dt_device_param lut_dt_conf;
struct target_distribute_txn_data *lut_tdtd;
/* supported opcodes and handlers for this target */
struct tgt_opc_slice *lut_slice;
__u32 lut_reply_fail_id;
__u32 lut_request_fail_id;
/* sptlrpc rules */
rwlock_t lut_sptlrpc_lock;
struct sptlrpc_rule_set lut_sptlrpc_rset;
spinlock_t lut_flags_lock;
unsigned int lut_syncjournal:1,
lut_sync_lock_cancel:2,
/* e.g. OST node */
lut_no_reconstruct:1,
/* enforce recovery for local clients */
lut_local_recovery:1,
lut_cksum_t10pi_enforce:1,
lut_no_create:1,
/* if enabled, MDT inodes UID/GID are checked
* against the nodemap mapping rules.
*/
lut_enable_resource_id_check:1;
/* checksum types supported on this node */
enum cksum_types lut_cksum_types_supported;
/** last_rcvd file */
struct dt_object *lut_last_rcvd;
/* transaction callbacks */
struct dt_txn_callback lut_txn_cb;
/** server data in last_rcvd file */
struct lr_server_data lut_lsd;
/** Server last transaction number */
__u64 lut_last_transno;
/** Lock protecting last transaction number */
spinlock_t lut_translock;
/** Lock protecting client bitmap */
spinlock_t lut_client_bitmap_lock;
/** Bitmap of known clients */
unsigned long *lut_client_bitmap;
/* Number of clients supporting multiple modify RPCs
* recorded in the last_rcvd file
*/
atomic_t lut_num_clients;
/* Maximum number of clients ever connected */
atomic_t lut_max_clients;
/* Client generation to identify client slot reuse */
atomic_t lut_client_generation;
/** reply_data file */
struct dt_object *lut_reply_data;
/** reply data header */
struct lsd_reply_header lut_reply_header;
/** Bitmap of used slots in the reply data file */
unsigned long **lut_reply_bitmap;
/** target sync count, used for debug & test */
atomic_t lut_sync_count;
/** cross MDT locks which should trigger Sync-on-Lock-Cancel */
spinlock_t lut_slc_locks_guard;
struct list_head lut_slc_locks;
/* target grants fields */
struct tg_grants_data lut_tgd;
/* target tunables */
const struct attribute **lut_attrs;
/* FMD (file modification data) values */
int lut_fmd_max_num;
time64_t lut_fmd_max_age;
};
#define LUT_FMD_MAX_NUM_DEFAULT 128
#define LUT_FMD_MAX_AGE_DEFAULT (obd_timeout + 10)
/* number of slots in reply bitmap */
#define LUT_REPLY_SLOTS_PER_CHUNK (1<<20)
#define LUT_REPLY_SLOTS_MAX_CHUNKS 16
#define TRD_INDEX_MEMORY -1
/**
* Target reply data
*/
struct tg_reply_data {
/** chain of reply data anchored in tg_export_data */
struct list_head trd_list;
/** copy of on-disk reply data */
struct lsd_reply_data trd_reply;
/** versions for Version Based Recovery */
__u64 trd_pre_versions[4];
/** slot index in reply_data file */
int trd_index;
/** tag the client used */
__u16 trd_tag;
/** child fid to reconstruct open */
struct lu_fid trd_object;
};
extern struct lu_context_key tgt_session_key;
struct tgt_session_info {
/*
* The following members will be filled explicitly
* with specific data in tgt_ses_init().
*/
struct req_capsule *tsi_pill;
/*
* Lock request for "habeo clavis" operations.
*/
struct ldlm_request *tsi_dlm_req;
/* although we have export in req, there are cases when it is not
* available, e.g. closing files upon export destroy */
struct obd_export *tsi_exp;
const struct lu_env *tsi_env;
struct lu_target *tsi_tgt;
const struct mdt_body *tsi_mdt_body;
struct ost_body *tsi_ost_body;
struct lu_object *tsi_corpus;
struct lu_fid tsi_fid;
struct ldlm_res_id tsi_resid;
/* object affected by VBR, for last_rcvd_update */
struct dt_object *tsi_vbr_obj;
/* open child object, for last_rcvd_update */
struct dt_object *tsi_open_obj;
/* opdata for mdt_reint_open(), has the same value as
* ldlm_reply:lock_policy_res1. The tgt_update_last_rcvd() stores
* this value onto disk for recovery when tgt_txn_stop_cb() is called.
*/
__u64 tsi_opdata;
bool tsi_dv_update;
/*
* Additional fail id that can be set by handler.
*/
int tsi_reply_fail_id;
bool tsi_preprocessed;
/* request JobID */
char *tsi_jobid;
/* update replay */
__u64 tsi_xid;
__u32 tsi_result;
__u32 tsi_client_gen;
/* RPC transaction handling */
bool tsi_mult_trans;
int tsi_has_trans;
/* Batched RPC replay */
bool tsi_batch_env;
/* Sub request index in the batched RPC. */
__u32 tsi_batch_idx;
struct tg_reply_data *tsi_batch_trd;
};
static inline struct tgt_session_info *tgt_ses_info(const struct lu_env *env)
{
struct tgt_session_info *tsi;
LASSERT(env->le_ses != NULL);
tsi = lu_context_key_get(env->le_ses, &tgt_session_key);
LASSERT(tsi);
return tsi;
}
static inline void tgt_vbr_obj_data_set(const struct lu_env *env,
struct dt_object *obj, bool dv_update)
{
struct tgt_session_info *tsi;
if (env->le_ses != NULL) {
tsi = tgt_ses_info(env);
tsi->tsi_vbr_obj = obj;
tsi->tsi_dv_update = dv_update;
}
}
static inline void tgt_vbr_obj_set(const struct lu_env *env,
struct dt_object *obj)
{
return tgt_vbr_obj_data_set(env, obj, false);
}
static inline void tgt_open_obj_set(const struct lu_env *env,
struct dt_object *obj)
{
struct tgt_session_info *tsi;
if (env->le_ses != NULL) {
tsi = tgt_ses_info(env);
tsi->tsi_open_obj = obj;
}
}
static inline void tgt_opdata_set(const struct lu_env *env, __u64 flags)
{
struct tgt_session_info *tsi;
if (env->le_ses != NULL) {
tsi = tgt_ses_info(env);
tsi->tsi_opdata |= flags;
}
}
static inline void tgt_opdata_clear(const struct lu_env *env, __u64 flags)
{
struct tgt_session_info *tsi;
if (env->le_ses != NULL) {
tsi = tgt_ses_info(env);
tsi->tsi_opdata &= ~flags;
}
}
/*
* Generic unified target support.
*/
enum tgt_handler_flags {
/*
* struct *_body is passed in the incoming message, and object
* identified by this fid exists on disk.
*/
HAS_BODY = BIT(0),
/*
* struct ldlm_request is passed in the incoming message.
*/
HAS_KEY = BIT(1),
/*
* this request has fixed reply format, so that reply message can be
* packed by generic code.
*/
HAS_REPLY = BIT(2),
/*
* this request will modify something, so check whether the file system
* is readonly or not, then return -EROFS to client asap if necessary.
*/
IS_MUTABLE = BIT(3)
};
struct tgt_handler {
/* The name of this handler. */
const char *th_name;
/* Fail id, check at the beginning */
int th_fail_id;
/* Operation code */
__u32 th_opc;
/* Flags in enum tgt_handler_flags */
__u32 th_flags;
/* Request version for this opcode */
enum lustre_msg_version th_version;
/* Handler function */
int (*th_act)(struct tgt_session_info *tsi);
/* Handler function for high priority requests */
void (*th_hp)(struct tgt_session_info *tsi);
/* Request format for this request */
const struct req_format *th_fmt;
};
struct tgt_opc_slice {
__u32 tos_opc_start; /* First op code */
__u32 tos_opc_end; /* Last op code */
struct tgt_handler *tos_hs; /* Registered handler */
};
static inline struct ptlrpc_request *tgt_ses_req(struct tgt_session_info *tsi)
{
return tsi->tsi_pill ? tsi->tsi_pill->rc_req : NULL;
}
static inline __u64 tgt_conn_flags(struct tgt_session_info *tsi)
{
LASSERT(tsi->tsi_exp);
return exp_connect_flags(tsi->tsi_exp);
}
static inline int req_is_replay(struct ptlrpc_request *req)
{
LASSERT(req->rq_reqmsg);
return !!(lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY);
}
static inline bool tgt_is_multimodrpcs_client(struct obd_export *exp)
{
return exp_connect_flags(exp) & OBD_CONNECT_MULTIMODRPCS;
}
static inline bool tgt_is_increasing_xid_client(struct obd_export *exp)
{
return exp_connect_flags2(exp) & OBD_CONNECT2_INC_XID;
}
/* target/tgt_handler.c */
int tgt_request_handle(struct ptlrpc_request *req);
char *tgt_name(struct lu_target *tgt);
void tgt_counter_incr(struct obd_export *exp, int opcode);
int tgt_connect_check_sptlrpc(struct ptlrpc_request *req,
struct obd_export *exp);
int tgt_adapt_sptlrpc_conf(struct lu_target *tgt);
int tgt_connect(struct tgt_session_info *tsi);
int tgt_disconnect(struct tgt_session_info *uti);
int tgt_obd_ping(struct tgt_session_info *tsi);
int tgt_enqueue(struct tgt_session_info *tsi);
int tgt_convert(struct tgt_session_info *tsi);
int tgt_bl_callback(struct tgt_session_info *tsi);
int tgt_cp_callback(struct tgt_session_info *tsi);
int tgt_llog_open(struct tgt_session_info *tsi);
int tgt_llog_read_header(struct tgt_session_info *tsi);
int tgt_llog_next_block(struct tgt_session_info *tsi);
int tgt_llog_prev_block(struct tgt_session_info *tsi);
int tgt_sec_ctx_init(struct tgt_session_info *tsi);
int tgt_sec_ctx_init_cont(struct tgt_session_info *tsi);
int tgt_sec_ctx_fini(struct tgt_session_info *tsi);
int tgt_sendpage(struct tgt_session_info *tsi, struct lu_rdpg *rdpg, int nob);
int tgt_send_buffer(struct tgt_session_info *tsi, struct lu_rdbuf *rdbuf);
int tgt_validate_obdo(struct tgt_session_info *tsi, struct obdo *oa);
int tgt_sync(const struct lu_env *env, struct lu_target *tgt,
struct dt_object *obj, __u64 start, __u64 end);
int tgt_io_thread_init(struct ptlrpc_thread *thread);
void tgt_io_thread_done(struct ptlrpc_thread *thread);
int tgt_mdt_data_lock(struct ldlm_namespace *ns, struct ldlm_res_id *res_id,
struct lustre_handle *lh, int mode, __u64 *flags);
int tgt_extent_lock(const struct lu_env *env, struct ldlm_namespace *ns,
struct ldlm_res_id *res_id, __u64 start, __u64 end,
struct lustre_handle *lh, int mode, __u64 *flags);
void tgt_data_unlock(struct lustre_handle *lh, enum ldlm_mode mode);
int tgt_brw_read(struct tgt_session_info *tsi);
int tgt_brw_write(struct tgt_session_info *tsi);
int tgt_lseek(struct tgt_session_info *tsi);
int tgt_hpreq_handler(struct ptlrpc_request *req);
void tgt_register_lfsck_in_notify_local(int (*notify)(const struct lu_env *,
struct dt_device *,
struct lfsck_req_local *,
struct thandle *));
void tgt_register_lfsck_in_notify(int (*notify)(const struct lu_env *,
struct dt_device *,
struct lfsck_request *));
void tgt_register_lfsck_query(int (*query)(const struct lu_env *,
struct dt_device *,
struct lfsck_request *,
struct lfsck_reply *,
struct lfsck_query *));
int req_can_reconstruct(struct ptlrpc_request *req, struct tg_reply_data *trd);
bool tgt_check_resent(struct ptlrpc_request *req, struct tg_reply_data *trd);
extern struct tgt_handler tgt_sec_ctx_handlers[];
extern struct tgt_handler tgt_lfsck_handlers[];
extern struct tgt_handler tgt_obd_handlers[];
extern struct tgt_handler tgt_dlm_handlers[];
extern struct tgt_handler tgt_llog_handlers[];
extern struct tgt_handler tgt_out_handlers[];
extern struct tgt_handler fld_handlers[];
extern struct tgt_handler seq_handlers[];
typedef void (*tgt_cb_t)(struct lu_target *lut, __u64 transno,
void *data, int err);
struct tgt_commit_cb {
tgt_cb_t tgt_cb_func;
void *tgt_cb_data;
};
int tgt_hpreq_handler(struct ptlrpc_request *req);
/* target/tgt_main.c */
void tgt_boot_epoch_update(struct lu_target *lut);
void tgt_save_slc_lock(struct lu_target *lut, struct ldlm_lock *lock,
__u64 transno);
void tgt_discard_slc_lock(struct lu_target *lut, struct ldlm_lock *lock);
int tgt_init(const struct lu_env *env, struct lu_target *lut,
struct obd_device *obd, struct dt_device *dt,
struct tgt_opc_slice *slice,
int request_fail_id, int reply_fail_id);
void tgt_fini(const struct lu_env *env, struct lu_target *lut);
int tgt_client_alloc(struct obd_export *exp);
void tgt_client_free(struct obd_export *exp);
int tgt_client_del(const struct lu_env *env, struct obd_export *exp);
int tgt_client_add(const struct lu_env *env, struct obd_export *exp, int);
int tgt_client_new(const struct lu_env *env, struct obd_export *exp);
int tgt_server_data_update(const struct lu_env *env, struct lu_target *tg,
int sync);
int tgt_reply_data_init(const struct lu_env *env, struct lu_target *tgt);
int tgt_lookup_reply(struct ptlrpc_request *req, struct tg_reply_data *trd);
int tgt_mk_reply_data(const struct lu_env *env, struct lu_target *tgt,
struct tg_export_data *ted, struct ptlrpc_request *req,
__u64 opdata, struct thandle *th, bool write_update,
__u64 transno);
struct tg_reply_data *tgt_lookup_reply_by_xid(struct tg_export_data *ted,
__u64 xid);
int tgt_tunables_init(struct lu_target *lut);
void tgt_tunables_fini(struct lu_target *lut);
void tgt_mask_cksum_types(struct lu_target *lut, enum cksum_types *cksum_types);
/* target/tgt_grant.c */
static inline int exp_grant_param_supp(struct obd_export *exp)
{
return !!(exp_connect_flags(exp) & OBD_CONNECT_GRANT_PARAM);
}
/* Blocksize used for client not supporting OBD_CONNECT_GRANT_PARAM.
* That's 4KB=2^12 which is the biggest block size known to work whatever
* the client's page size is. */
#define COMPAT_BSIZE_SHIFT 12
void tgt_grant_sanity_check(struct obd_device *obd, const char *func);
void tgt_grant_dealloc(struct obd_export *exp, struct obdo *oa);
void tgt_grant_connect(const struct lu_env *env, struct obd_export *exp,
struct obd_connect_data *data, bool new_conn);
void tgt_grant_discard(struct obd_export *exp);
void tgt_grant_prepare_read(const struct lu_env *env, struct obd_export *exp,
struct obdo *oa);
void tgt_grant_prepare_write(const struct lu_env *env, struct obd_export *exp,
struct obdo *oa, struct niobuf_remote *rnb,
int niocount);
void tgt_grant_commit(struct obd_export *exp, unsigned long grant_used, int rc);
int tgt_grant_commit_cb_add(struct thandle *th, struct obd_export *exp,
unsigned long grant);
long tgt_grant_create(const struct lu_env *env, struct obd_export *exp,
s64 *nr);
int tgt_statfs_internal(const struct lu_env *env, struct lu_target *lut,
struct obd_statfs *osfs, time64_t max_age,
int *from_cache);
ssize_t tot_dirty_show(struct kobject *kobj, struct attribute *attr,
char *buf);
ssize_t tot_granted_show(struct kobject *kobj, struct attribute *attr,
char *buf);
ssize_t tot_pending_show(struct kobject *kobj, struct attribute *attr,
char *buf);
ssize_t grant_compat_disable_show(struct kobject *kobj, struct attribute *attr,
char *buf);
ssize_t grant_compat_disable_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count);
/* FMD */
void tgt_fmd_update(struct obd_export *exp, const struct lu_fid *fid,
__u64 xid);
bool tgt_fmd_check(struct obd_export *exp, const struct lu_fid *fid,
__u64 xid);
#ifdef DO_FMD_DROP
void tgt_fmd_drop(struct obd_export *exp, const struct lu_fid *fid);
#else
#define tgt_fmd_drop(exp, fid) do {} while (0)
#endif
/* target/update_trans.c */
int distribute_txn_init(const struct lu_env *env,
struct lu_target *lut,
struct target_distribute_txn_data *tdtd,
__u32 index);
void distribute_txn_fini(const struct lu_env *env,
struct target_distribute_txn_data *tdtd);
/* target/update_recovery.c */
int insert_update_records_to_replay_list(struct target_distribute_txn_data *,
struct llog_update_record *,
struct llog_cookie *, __u32);
void dtrq_list_dump(struct target_distribute_txn_data *tdtd,
unsigned int mask);
void dtrq_list_destroy(struct target_distribute_txn_data *tdtd);
int distribute_txn_replay_handle(struct lu_env *env,
struct target_distribute_txn_data *tdtd,
struct distribute_txn_replay_req *dtrq);
__u64 distribute_txn_get_next_transno(struct target_distribute_txn_data *tdtd);
struct distribute_txn_replay_req *
distribute_txn_get_next_req(struct target_distribute_txn_data *tdtd);
void dtrq_destroy(struct distribute_txn_replay_req *dtrq);
struct distribute_txn_replay_req_sub *
dtrq_sub_lookup(struct distribute_txn_replay_req *dtrq, __u32 mdt_index);
struct distribute_txn_replay_req *
distribute_txn_lookup_finish_list(struct target_distribute_txn_data *tdtd,
__u64 transno);
bool is_req_replayed_by_update(struct ptlrpc_request *req);
enum {
ESERIOUS = 0x0001000
};
/* ESERIOUS errors must be returned during RPC handling by targets when
* the RPC reply buffer has not yet been packed. Otherwise, the LBUG()
* in tgt_handle_request0() will be triggered when sending the reply.
*/
static inline int err_serious(int rc)
{
LASSERT(rc < 0);
return -(-rc | ESERIOUS);
}
static inline int clear_serious(int rc)
{
if (rc < 0)
rc = -(-rc & ~ESERIOUS);
return rc;
}
static inline int is_serious(int rc)
{
return (rc < 0 && -rc & ESERIOUS);
}
/*
* Unified target generic handers macros and generic functions.
*/
#define TGT_RPC_HANDLER_HP(base, flags, opc, fn, hp, fmt, version) \
[opc - base] = { \
.th_name = #opc, \
.th_fail_id = OBD_FAIL_ ## opc ## _NET, \
.th_opc = opc, \
.th_flags = flags, \
.th_act = fn, \
.th_fmt = fmt, \
.th_version = version, \
.th_hp = hp, \
}
#define TGT_RPC_HANDLER(base, flags, opc, fn, fmt, version) \
TGT_RPC_HANDLER_HP(base, flags, opc, fn, NULL, fmt, version)
/* MDT Request with a format known in advance */
#define TGT_MDT_HDL(flags, name, fn) \
TGT_RPC_HANDLER(MDS_FIRST_OPC, flags, name, fn, &RQF_ ## name, \
LUSTRE_MDS_VERSION)
/* Request with a format we do not yet know */
#define TGT_MDT_HDL_VAR(flags, name, fn) \
TGT_RPC_HANDLER(MDS_FIRST_OPC, flags, name, fn, NULL, \
LUSTRE_MDS_VERSION)
/* OST Request with a format known in advance */
#define TGT_OST_HDL(flags, name, fn) \
TGT_RPC_HANDLER(OST_FIRST_OPC, flags, name, fn, &RQF_ ## name, \
LUSTRE_OST_VERSION)
#define TGT_OST_HDL_HP(flags, name, fn, hp) \
TGT_RPC_HANDLER_HP(OST_FIRST_OPC, flags, name, fn, hp, \
&RQF_ ## name, LUSTRE_OST_VERSION)
/* MGS request with a format known in advance */
#define TGT_MGS_HDL(flags, name, fn) \
TGT_RPC_HANDLER(MGS_FIRST_OPC, flags, name, fn, &RQF_ ## name, \
LUSTRE_MGS_VERSION)
#define TGT_MGS_HDL_VAR(flags, name, fn) \
TGT_RPC_HANDLER(MGS_FIRST_OPC, flags, name, fn, NULL, \
LUSTRE_MGS_VERSION)
/*
* OBD handler macros and generic functions.
*/
#define TGT_OBD_HDL(flags, name, fn) \
TGT_RPC_HANDLER(OBD_FIRST_OPC, flags, name, fn, &RQF_ ## name, \
LUSTRE_OBD_VERSION)
#define TGT_OBD_HDL_VAR(flags, name, fn) \
TGT_RPC_HANDLER(OBD_FIRST_OPC, flags, name, fn, NULL, \
LUSTRE_OBD_VERSION)
/*
* DLM handler macros and generic functions.
*/
#define TGT_DLM_HDL_VAR(flags, name, fn) \
TGT_RPC_HANDLER(LDLM_FIRST_OPC, flags, name, fn, NULL, \
LUSTRE_DLM_VERSION)
#define TGT_DLM_HDL(flags, name, fn) \
TGT_RPC_HANDLER(LDLM_FIRST_OPC, flags, name, fn, &RQF_ ## name, \
LUSTRE_DLM_VERSION)
/*
* LLOG handler macros and generic functions.
*/
#define TGT_LLOG_HDL_VAR(flags, name, fn) \
TGT_RPC_HANDLER(LLOG_FIRST_OPC, flags, name, fn, NULL, \
LUSTRE_LOG_VERSION)
#define TGT_LLOG_HDL(flags, name, fn) \
TGT_RPC_HANDLER(LLOG_FIRST_OPC, flags, name, fn, &RQF_ ## name, \
LUSTRE_LOG_VERSION)
/*
* Sec context handler macros and generic functions.
*/
#define TGT_SEC_HDL_VAR(flags, name, fn) \
TGT_RPC_HANDLER(SEC_FIRST_OPC, flags, name, fn, NULL, \
LUSTRE_OBD_VERSION)
#define TGT_QUOTA_HDL(flags, name, fn) \
TGT_RPC_HANDLER(QUOTA_DQACQ, flags, name, fn, &RQF_ ## name, \
LUSTRE_MDS_VERSION)
/* Sequence service handlers */
#define TGT_SEQ_HDL(flags, name, fn) \
TGT_RPC_HANDLER(SEQ_QUERY, flags, name, fn, &RQF_ ## name, \
LUSTRE_MDS_VERSION)
/* FID Location Database handlers */
#define TGT_FLD_HDL_VAR(flags, name, fn) \
TGT_RPC_HANDLER(FLD_QUERY, flags, name, fn, NULL, \
LUSTRE_MDS_VERSION)
/* LFSCK handlers */
#define TGT_LFSCK_HDL(flags, name, fn) \
TGT_RPC_HANDLER(LFSCK_FIRST_OPC, flags, name, fn, \
&RQF_ ## name, LUSTRE_OBD_VERSION)
/* Request with a format known in advance */
#define TGT_UPDATE_HDL(flags, name, fn) \
TGT_RPC_HANDLER(OUT_UPDATE, flags, name, fn, &RQF_ ## name, \
LUSTRE_MDS_VERSION)
#endif /* __LUSTRE_LU_TARGET_H */
