564 lines
16 KiB
C
564 lines
16 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _FS_CEPH_OSD_CLIENT_H
|
|
#define _FS_CEPH_OSD_CLIENT_H
|
|
|
|
#include <linux/bitrev.h>
|
|
#include <linux/completion.h>
|
|
#include <linux/kref.h>
|
|
#include <linux/mempool.h>
|
|
#include <linux/rbtree.h>
|
|
#include <linux/refcount.h>
|
|
#include <linux/ktime.h>
|
|
|
|
#include <linux/ceph/types.h>
|
|
#include <linux/ceph/osdmap.h>
|
|
#include <linux/ceph/messenger.h>
|
|
#include <linux/ceph/msgpool.h>
|
|
#include <linux/ceph/auth.h>
|
|
#include <linux/ceph/pagelist.h>
|
|
|
|
struct ceph_msg;
|
|
struct ceph_snap_context;
|
|
struct ceph_osd_request;
|
|
struct ceph_osd_client;
|
|
|
|
/*
|
|
* completion callback for async writepages
|
|
*/
|
|
typedef void (*ceph_osdc_callback_t)(struct ceph_osd_request *);
|
|
|
|
#define CEPH_HOMELESS_OSD -1
|
|
|
|
/* a given osd we're communicating with */
|
|
struct ceph_osd {
|
|
refcount_t o_ref;
|
|
struct ceph_osd_client *o_osdc;
|
|
int o_osd;
|
|
int o_incarnation;
|
|
struct rb_node o_node;
|
|
struct ceph_connection o_con;
|
|
struct rb_root o_requests;
|
|
struct rb_root o_linger_requests;
|
|
struct rb_root o_backoff_mappings;
|
|
struct rb_root o_backoffs_by_id;
|
|
struct list_head o_osd_lru;
|
|
struct ceph_auth_handshake o_auth;
|
|
unsigned long lru_ttl;
|
|
struct list_head o_keepalive_item;
|
|
struct mutex lock;
|
|
};
|
|
|
|
#define CEPH_OSD_SLAB_OPS 2
|
|
#define CEPH_OSD_MAX_OPS 16
|
|
|
|
enum ceph_osd_data_type {
|
|
CEPH_OSD_DATA_TYPE_NONE = 0,
|
|
CEPH_OSD_DATA_TYPE_PAGES,
|
|
CEPH_OSD_DATA_TYPE_PAGELIST,
|
|
#ifdef CONFIG_BLOCK
|
|
CEPH_OSD_DATA_TYPE_BIO,
|
|
#endif /* CONFIG_BLOCK */
|
|
CEPH_OSD_DATA_TYPE_BVECS,
|
|
};
|
|
|
|
struct ceph_osd_data {
|
|
enum ceph_osd_data_type type;
|
|
union {
|
|
struct {
|
|
struct page **pages;
|
|
u64 length;
|
|
u32 alignment;
|
|
bool pages_from_pool;
|
|
bool own_pages;
|
|
};
|
|
struct ceph_pagelist *pagelist;
|
|
#ifdef CONFIG_BLOCK
|
|
struct {
|
|
struct ceph_bio_iter bio_pos;
|
|
u32 bio_length;
|
|
};
|
|
#endif /* CONFIG_BLOCK */
|
|
struct {
|
|
struct ceph_bvec_iter bvec_pos;
|
|
u32 num_bvecs;
|
|
};
|
|
};
|
|
};
|
|
|
|
struct ceph_osd_req_op {
|
|
u16 op; /* CEPH_OSD_OP_* */
|
|
u32 flags; /* CEPH_OSD_OP_FLAG_* */
|
|
u32 indata_len; /* request */
|
|
u32 outdata_len; /* reply */
|
|
s32 rval;
|
|
|
|
union {
|
|
struct ceph_osd_data raw_data_in;
|
|
struct {
|
|
u64 offset, length;
|
|
u64 truncate_size;
|
|
u32 truncate_seq;
|
|
struct ceph_osd_data osd_data;
|
|
} extent;
|
|
struct {
|
|
u32 name_len;
|
|
u32 value_len;
|
|
__u8 cmp_op; /* CEPH_OSD_CMPXATTR_OP_* */
|
|
__u8 cmp_mode; /* CEPH_OSD_CMPXATTR_MODE_* */
|
|
struct ceph_osd_data osd_data;
|
|
} xattr;
|
|
struct {
|
|
const char *class_name;
|
|
const char *method_name;
|
|
struct ceph_osd_data request_info;
|
|
struct ceph_osd_data request_data;
|
|
struct ceph_osd_data response_data;
|
|
__u8 class_len;
|
|
__u8 method_len;
|
|
u32 indata_len;
|
|
} cls;
|
|
struct {
|
|
u64 cookie;
|
|
__u8 op; /* CEPH_OSD_WATCH_OP_ */
|
|
u32 gen;
|
|
} watch;
|
|
struct {
|
|
struct ceph_osd_data request_data;
|
|
} notify_ack;
|
|
struct {
|
|
u64 cookie;
|
|
struct ceph_osd_data request_data;
|
|
struct ceph_osd_data response_data;
|
|
} notify;
|
|
struct {
|
|
struct ceph_osd_data response_data;
|
|
} list_watchers;
|
|
struct {
|
|
u64 expected_object_size;
|
|
u64 expected_write_size;
|
|
u32 flags; /* CEPH_OSD_OP_ALLOC_HINT_FLAG_* */
|
|
} alloc_hint;
|
|
struct {
|
|
u64 snapid;
|
|
u64 src_version;
|
|
u8 flags;
|
|
u32 src_fadvise_flags;
|
|
struct ceph_osd_data osd_data;
|
|
} copy_from;
|
|
};
|
|
};
|
|
|
|
struct ceph_osd_request_target {
|
|
struct ceph_object_id base_oid;
|
|
struct ceph_object_locator base_oloc;
|
|
struct ceph_object_id target_oid;
|
|
struct ceph_object_locator target_oloc;
|
|
|
|
struct ceph_pg pgid; /* last raw pg we mapped to */
|
|
struct ceph_spg spgid; /* last actual spg we mapped to */
|
|
u32 pg_num;
|
|
u32 pg_num_mask;
|
|
struct ceph_osds acting;
|
|
struct ceph_osds up;
|
|
int size;
|
|
int min_size;
|
|
bool sort_bitwise;
|
|
bool recovery_deletes;
|
|
|
|
unsigned int flags; /* CEPH_OSD_FLAG_* */
|
|
bool used_replica;
|
|
bool paused;
|
|
|
|
u32 epoch;
|
|
u32 last_force_resend;
|
|
|
|
int osd;
|
|
};
|
|
|
|
/* an in-flight request */
|
|
struct ceph_osd_request {
|
|
u64 r_tid; /* unique for this client */
|
|
struct rb_node r_node;
|
|
struct rb_node r_mc_node; /* map check */
|
|
struct work_struct r_complete_work;
|
|
struct ceph_osd *r_osd;
|
|
|
|
struct ceph_osd_request_target r_t;
|
|
#define r_base_oid r_t.base_oid
|
|
#define r_base_oloc r_t.base_oloc
|
|
#define r_flags r_t.flags
|
|
|
|
struct ceph_msg *r_request, *r_reply;
|
|
u32 r_sent; /* >0 if r_request is sending/sent */
|
|
|
|
/* request osd ops array */
|
|
unsigned int r_num_ops;
|
|
|
|
int r_result;
|
|
|
|
struct ceph_osd_client *r_osdc;
|
|
struct kref r_kref;
|
|
bool r_mempool;
|
|
struct completion r_completion; /* private to osd_client.c */
|
|
ceph_osdc_callback_t r_callback;
|
|
|
|
struct inode *r_inode; /* for use by callbacks */
|
|
struct list_head r_private_item; /* ditto */
|
|
void *r_priv; /* ditto */
|
|
|
|
/* set by submitter */
|
|
u64 r_snapid; /* for reads, CEPH_NOSNAP o/w */
|
|
struct ceph_snap_context *r_snapc; /* for writes */
|
|
struct timespec64 r_mtime; /* ditto */
|
|
u64 r_data_offset; /* ditto */
|
|
bool r_linger; /* don't resend on failure */
|
|
|
|
/* internal */
|
|
unsigned long r_stamp; /* jiffies, send or check time */
|
|
unsigned long r_start_stamp; /* jiffies */
|
|
ktime_t r_start_latency; /* ktime_t */
|
|
ktime_t r_end_latency; /* ktime_t */
|
|
int r_attempts;
|
|
u32 r_map_dne_bound;
|
|
|
|
struct ceph_osd_req_op r_ops[];
|
|
};
|
|
|
|
struct ceph_request_redirect {
|
|
struct ceph_object_locator oloc;
|
|
};
|
|
|
|
/*
|
|
* osd request identifier
|
|
*
|
|
* caller name + incarnation# + tid to unique identify this request
|
|
*/
|
|
struct ceph_osd_reqid {
|
|
struct ceph_entity_name name;
|
|
__le64 tid;
|
|
__le32 inc;
|
|
} __packed;
|
|
|
|
struct ceph_blkin_trace_info {
|
|
__le64 trace_id;
|
|
__le64 span_id;
|
|
__le64 parent_span_id;
|
|
} __packed;
|
|
|
|
typedef void (*rados_watchcb2_t)(void *arg, u64 notify_id, u64 cookie,
|
|
u64 notifier_id, void *data, size_t data_len);
|
|
typedef void (*rados_watcherrcb_t)(void *arg, u64 cookie, int err);
|
|
|
|
struct ceph_osd_linger_request {
|
|
struct ceph_osd_client *osdc;
|
|
u64 linger_id;
|
|
bool committed;
|
|
bool is_watch; /* watch or notify */
|
|
|
|
struct ceph_osd *osd;
|
|
struct ceph_osd_request *reg_req;
|
|
struct ceph_osd_request *ping_req;
|
|
unsigned long ping_sent;
|
|
unsigned long watch_valid_thru;
|
|
struct list_head pending_lworks;
|
|
|
|
struct ceph_osd_request_target t;
|
|
u32 map_dne_bound;
|
|
|
|
struct timespec64 mtime;
|
|
|
|
struct kref kref;
|
|
struct mutex lock;
|
|
struct rb_node node; /* osd */
|
|
struct rb_node osdc_node; /* osdc */
|
|
struct rb_node mc_node; /* map check */
|
|
struct list_head scan_item;
|
|
|
|
struct completion reg_commit_wait;
|
|
struct completion notify_finish_wait;
|
|
int reg_commit_error;
|
|
int notify_finish_error;
|
|
int last_error;
|
|
|
|
u32 register_gen;
|
|
u64 notify_id;
|
|
|
|
rados_watchcb2_t wcb;
|
|
rados_watcherrcb_t errcb;
|
|
void *data;
|
|
|
|
struct page ***preply_pages;
|
|
size_t *preply_len;
|
|
};
|
|
|
|
struct ceph_watch_item {
|
|
struct ceph_entity_name name;
|
|
u64 cookie;
|
|
struct ceph_entity_addr addr;
|
|
};
|
|
|
|
struct ceph_spg_mapping {
|
|
struct rb_node node;
|
|
struct ceph_spg spgid;
|
|
|
|
struct rb_root backoffs;
|
|
};
|
|
|
|
struct ceph_hobject_id {
|
|
void *key;
|
|
size_t key_len;
|
|
void *oid;
|
|
size_t oid_len;
|
|
u64 snapid;
|
|
u32 hash;
|
|
u8 is_max;
|
|
void *nspace;
|
|
size_t nspace_len;
|
|
s64 pool;
|
|
|
|
/* cache */
|
|
u32 hash_reverse_bits;
|
|
};
|
|
|
|
static inline void ceph_hoid_build_hash_cache(struct ceph_hobject_id *hoid)
|
|
{
|
|
hoid->hash_reverse_bits = bitrev32(hoid->hash);
|
|
}
|
|
|
|
/*
|
|
* PG-wide backoff: [begin, end)
|
|
* per-object backoff: begin == end
|
|
*/
|
|
struct ceph_osd_backoff {
|
|
struct rb_node spg_node;
|
|
struct rb_node id_node;
|
|
|
|
struct ceph_spg spgid;
|
|
u64 id;
|
|
struct ceph_hobject_id *begin;
|
|
struct ceph_hobject_id *end;
|
|
};
|
|
|
|
#define CEPH_LINGER_ID_START 0xffff000000000000ULL
|
|
|
|
struct ceph_osd_client {
|
|
struct ceph_client *client;
|
|
|
|
struct ceph_osdmap *osdmap; /* current map */
|
|
struct rw_semaphore lock;
|
|
|
|
struct rb_root osds; /* osds */
|
|
struct list_head osd_lru; /* idle osds */
|
|
spinlock_t osd_lru_lock;
|
|
u32 epoch_barrier;
|
|
struct ceph_osd homeless_osd;
|
|
atomic64_t last_tid; /* tid of last request */
|
|
u64 last_linger_id;
|
|
struct rb_root linger_requests; /* lingering requests */
|
|
struct rb_root map_checks;
|
|
struct rb_root linger_map_checks;
|
|
atomic_t num_requests;
|
|
atomic_t num_homeless;
|
|
int abort_err;
|
|
struct delayed_work timeout_work;
|
|
struct delayed_work osds_timeout_work;
|
|
#ifdef CONFIG_DEBUG_FS
|
|
struct dentry *debugfs_file;
|
|
#endif
|
|
|
|
mempool_t *req_mempool;
|
|
|
|
struct ceph_msgpool msgpool_op;
|
|
struct ceph_msgpool msgpool_op_reply;
|
|
|
|
struct workqueue_struct *notify_wq;
|
|
struct workqueue_struct *completion_wq;
|
|
};
|
|
|
|
static inline bool ceph_osdmap_flag(struct ceph_osd_client *osdc, int flag)
|
|
{
|
|
return osdc->osdmap->flags & flag;
|
|
}
|
|
|
|
extern int ceph_osdc_setup(void);
|
|
extern void ceph_osdc_cleanup(void);
|
|
|
|
extern int ceph_osdc_init(struct ceph_osd_client *osdc,
|
|
struct ceph_client *client);
|
|
extern void ceph_osdc_stop(struct ceph_osd_client *osdc);
|
|
extern void ceph_osdc_reopen_osds(struct ceph_osd_client *osdc);
|
|
|
|
extern void ceph_osdc_handle_reply(struct ceph_osd_client *osdc,
|
|
struct ceph_msg *msg);
|
|
extern void ceph_osdc_handle_map(struct ceph_osd_client *osdc,
|
|
struct ceph_msg *msg);
|
|
void ceph_osdc_update_epoch_barrier(struct ceph_osd_client *osdc, u32 eb);
|
|
void ceph_osdc_abort_requests(struct ceph_osd_client *osdc, int err);
|
|
void ceph_osdc_clear_abort_err(struct ceph_osd_client *osdc);
|
|
|
|
#define osd_req_op_data(oreq, whch, typ, fld) \
|
|
({ \
|
|
struct ceph_osd_request *__oreq = (oreq); \
|
|
unsigned int __whch = (whch); \
|
|
BUG_ON(__whch >= __oreq->r_num_ops); \
|
|
&__oreq->r_ops[__whch].typ.fld; \
|
|
})
|
|
|
|
extern void osd_req_op_init(struct ceph_osd_request *osd_req,
|
|
unsigned int which, u16 opcode, u32 flags);
|
|
|
|
extern void osd_req_op_raw_data_in_pages(struct ceph_osd_request *,
|
|
unsigned int which,
|
|
struct page **pages, u64 length,
|
|
u32 alignment, bool pages_from_pool,
|
|
bool own_pages);
|
|
|
|
extern void osd_req_op_extent_init(struct ceph_osd_request *osd_req,
|
|
unsigned int which, u16 opcode,
|
|
u64 offset, u64 length,
|
|
u64 truncate_size, u32 truncate_seq);
|
|
extern void osd_req_op_extent_update(struct ceph_osd_request *osd_req,
|
|
unsigned int which, u64 length);
|
|
extern void osd_req_op_extent_dup_last(struct ceph_osd_request *osd_req,
|
|
unsigned int which, u64 offset_inc);
|
|
|
|
extern struct ceph_osd_data *osd_req_op_extent_osd_data(
|
|
struct ceph_osd_request *osd_req,
|
|
unsigned int which);
|
|
|
|
extern void osd_req_op_extent_osd_data_pages(struct ceph_osd_request *,
|
|
unsigned int which,
|
|
struct page **pages, u64 length,
|
|
u32 alignment, bool pages_from_pool,
|
|
bool own_pages);
|
|
extern void osd_req_op_extent_osd_data_pagelist(struct ceph_osd_request *,
|
|
unsigned int which,
|
|
struct ceph_pagelist *pagelist);
|
|
#ifdef CONFIG_BLOCK
|
|
void osd_req_op_extent_osd_data_bio(struct ceph_osd_request *osd_req,
|
|
unsigned int which,
|
|
struct ceph_bio_iter *bio_pos,
|
|
u32 bio_length);
|
|
#endif /* CONFIG_BLOCK */
|
|
void osd_req_op_extent_osd_data_bvecs(struct ceph_osd_request *osd_req,
|
|
unsigned int which,
|
|
struct bio_vec *bvecs, u32 num_bvecs,
|
|
u32 bytes);
|
|
void osd_req_op_extent_osd_data_bvec_pos(struct ceph_osd_request *osd_req,
|
|
unsigned int which,
|
|
struct ceph_bvec_iter *bvec_pos);
|
|
|
|
extern void osd_req_op_cls_request_data_pagelist(struct ceph_osd_request *,
|
|
unsigned int which,
|
|
struct ceph_pagelist *pagelist);
|
|
extern void osd_req_op_cls_request_data_pages(struct ceph_osd_request *,
|
|
unsigned int which,
|
|
struct page **pages, u64 length,
|
|
u32 alignment, bool pages_from_pool,
|
|
bool own_pages);
|
|
void osd_req_op_cls_request_data_bvecs(struct ceph_osd_request *osd_req,
|
|
unsigned int which,
|
|
struct bio_vec *bvecs, u32 num_bvecs,
|
|
u32 bytes);
|
|
extern void osd_req_op_cls_response_data_pages(struct ceph_osd_request *,
|
|
unsigned int which,
|
|
struct page **pages, u64 length,
|
|
u32 alignment, bool pages_from_pool,
|
|
bool own_pages);
|
|
int osd_req_op_cls_init(struct ceph_osd_request *osd_req, unsigned int which,
|
|
const char *class, const char *method);
|
|
extern int osd_req_op_xattr_init(struct ceph_osd_request *osd_req, unsigned int which,
|
|
u16 opcode, const char *name, const void *value,
|
|
size_t size, u8 cmp_op, u8 cmp_mode);
|
|
extern void osd_req_op_alloc_hint_init(struct ceph_osd_request *osd_req,
|
|
unsigned int which,
|
|
u64 expected_object_size,
|
|
u64 expected_write_size,
|
|
u32 flags);
|
|
|
|
extern struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc,
|
|
struct ceph_snap_context *snapc,
|
|
unsigned int num_ops,
|
|
bool use_mempool,
|
|
gfp_t gfp_flags);
|
|
int ceph_osdc_alloc_messages(struct ceph_osd_request *req, gfp_t gfp);
|
|
|
|
extern struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *,
|
|
struct ceph_file_layout *layout,
|
|
struct ceph_vino vino,
|
|
u64 offset, u64 *len,
|
|
unsigned int which, int num_ops,
|
|
int opcode, int flags,
|
|
struct ceph_snap_context *snapc,
|
|
u32 truncate_seq, u64 truncate_size,
|
|
bool use_mempool);
|
|
|
|
extern void ceph_osdc_get_request(struct ceph_osd_request *req);
|
|
extern void ceph_osdc_put_request(struct ceph_osd_request *req);
|
|
|
|
extern int ceph_osdc_start_request(struct ceph_osd_client *osdc,
|
|
struct ceph_osd_request *req,
|
|
bool nofail);
|
|
extern void ceph_osdc_cancel_request(struct ceph_osd_request *req);
|
|
extern int ceph_osdc_wait_request(struct ceph_osd_client *osdc,
|
|
struct ceph_osd_request *req);
|
|
extern void ceph_osdc_sync(struct ceph_osd_client *osdc);
|
|
|
|
extern void ceph_osdc_flush_notifies(struct ceph_osd_client *osdc);
|
|
void ceph_osdc_maybe_request_map(struct ceph_osd_client *osdc);
|
|
|
|
int ceph_osdc_call(struct ceph_osd_client *osdc,
|
|
struct ceph_object_id *oid,
|
|
struct ceph_object_locator *oloc,
|
|
const char *class, const char *method,
|
|
unsigned int flags,
|
|
struct page *req_page, size_t req_len,
|
|
struct page **resp_pages, size_t *resp_len);
|
|
|
|
int ceph_osdc_copy_from(struct ceph_osd_client *osdc,
|
|
u64 src_snapid, u64 src_version,
|
|
struct ceph_object_id *src_oid,
|
|
struct ceph_object_locator *src_oloc,
|
|
u32 src_fadvise_flags,
|
|
struct ceph_object_id *dst_oid,
|
|
struct ceph_object_locator *dst_oloc,
|
|
u32 dst_fadvise_flags,
|
|
u32 truncate_seq, u64 truncate_size,
|
|
u8 copy_from_flags);
|
|
|
|
/* watch/notify */
|
|
struct ceph_osd_linger_request *
|
|
ceph_osdc_watch(struct ceph_osd_client *osdc,
|
|
struct ceph_object_id *oid,
|
|
struct ceph_object_locator *oloc,
|
|
rados_watchcb2_t wcb,
|
|
rados_watcherrcb_t errcb,
|
|
void *data);
|
|
int ceph_osdc_unwatch(struct ceph_osd_client *osdc,
|
|
struct ceph_osd_linger_request *lreq);
|
|
|
|
int ceph_osdc_notify_ack(struct ceph_osd_client *osdc,
|
|
struct ceph_object_id *oid,
|
|
struct ceph_object_locator *oloc,
|
|
u64 notify_id,
|
|
u64 cookie,
|
|
void *payload,
|
|
u32 payload_len);
|
|
int ceph_osdc_notify(struct ceph_osd_client *osdc,
|
|
struct ceph_object_id *oid,
|
|
struct ceph_object_locator *oloc,
|
|
void *payload,
|
|
u32 payload_len,
|
|
u32 timeout,
|
|
struct page ***preply_pages,
|
|
size_t *preply_len);
|
|
int ceph_osdc_watch_check(struct ceph_osd_client *osdc,
|
|
struct ceph_osd_linger_request *lreq);
|
|
int ceph_osdc_list_watchers(struct ceph_osd_client *osdc,
|
|
struct ceph_object_id *oid,
|
|
struct ceph_object_locator *oloc,
|
|
struct ceph_watch_item **watchers,
|
|
u32 *num_watchers);
|
|
#endif
|
|
|