*
*/
+#ifndef _LINUX_LUSTRE_NET_H
+#define _LINUX_LUSTRE_NET_H
+
#ifndef _LUSTRE_NET_H
-#define _LUSTRE_NET_H
+#error Do not #include this file directly. #include <lustre_net.h> instead
+#endif
#ifdef __KERNEL__
#include <linux/version.h>
#endif
#endif
-#include <libcfs/kp30.h>
-// #include <linux/obd.h>
-#include <portals/p30.h>
-#include <linux/lustre_idl.h>
-#include <linux/lustre_ha.h>
-#include <linux/lustre_import.h>
-#include <linux/lprocfs_status.h>
-#include <linux/lustre_compat25.h>
-
-/* MD flags we _always_ use */
-#define PTLRPC_MD_OPTIONS (PTL_MD_EVENT_START_DISABLE | \
- PTL_MD_LUSTRE_COMPLETION_SEMANTICS)
-
-/* Define some large-ish maxima for bulk I/O
- * CAVEAT EMPTOR, with multinet (i.e. gateways forwarding between networks)
- * these limits are system wide and not interface-local. */
-#define PTLRPC_MAX_BRW_SIZE (1 << 20)
-#define PTLRPC_MAX_BRW_PAGES 512
-
-/* ...reduce to fit... */
-
-#if CRAY_PORTALS
-/* include a cray header here if relevant
- * NB liblustre SIZE/PAGES is affected too, but it merges contiguous
- * chunks, so FTTB, it always used contiguous MDs */
-#else
-# include <portals/lib-types.h>
-#endif
-
-#if (defined(PTL_MTU) && (PTL_MTU < PTLRPC_MAX_BRW_SIZE))
-# undef PTLRPC_MAX_BRW_SIZE
-# define PTLRPC_MAX_BRW_SIZE PTL_MTU
-#endif
-#if (defined(PTL_MD_MAX_IOV) && (PTL_MD_MAX_IOV < PTLRPC_MAX_BRW_PAGES ))
-# undef PTLRPC_MAX_BRW_PAGES
-# define PTLRPC_MAX_BRW_PAGES PTL_MD_MAX_IOV
-#endif
-
-/* ...and make consistent... */
-
-#if (PTLRPC_MAX_BRW_SIZE > PTLRPC_MAX_BRW_PAGES * PAGE_SIZE)
-# undef PTLRPC_MAX_BRW_SIZE
-# define PTLRPC_MAX_BRW_SIZE (PTLRPC_MAX_BRW_PAGES * PAGE_SIZE)
-#else
-# undef PTLRPC_MAX_BRW_PAGES
-# define PTLRPC_MAX_BRW_PAGES (PTLRPC_MAX_BRW_SIZE / PAGE_SIZE)
-#endif
-
-#if ((PTLRPC_MAX_BRW_PAGES & (PTLRPC_MAX_BRW_PAGES - 1)) != 0)
-#error "PTLRPC_MAX_BRW_PAGES isn't a power of two"
-#endif
-
-/* Size over which to OBD_VMALLOC() rather than OBD_ALLOC() service request
- * buffers */
-#define SVC_BUF_VMALLOC_THRESHOLD (2*PAGE_SIZE)
-
-/* The following constants determine how memory is used to buffer incoming
- * service requests.
- *
- * ?_NBUFS # buffers to allocate when growing the pool
- * ?_BUFSIZE # bytes in a single request buffer
- * ?_MAXREQSIZE # maximum request service will receive
- *
- * When fewer than ?_NBUFS/2 buffers are posted for receive, another chunk
- * of ?_NBUFS is added to the pool.
- *
- * Messages larger than ?_MAXREQSIZE are dropped. Request buffers are
- * considered full when less than ?_MAXREQSIZE is left in them.
- */
-
-#define LDLM_NUM_THREADS min(smp_num_cpus * smp_num_cpus * 8, 64)
-#define LDLM_NBUFS 64
-#define LDLM_BUFSIZE (8 * 1024)
-#define LDLM_MAXREQSIZE (5 * 1024)
-
-#define MDT_MAX_THREADS 32UL
-#define MDT_NUM_THREADS max(min_t(unsigned long, num_physpages / 8192, \
- MDT_MAX_THREADS), 2UL)
-#define MDS_NBUFS (64 * smp_num_cpus)
-#define MDS_BUFSIZE (8 * 1024)
-/* Assume file name length = FNAME_MAX = 256 (true for extN).
- * path name length = PATH_MAX = 4096
- * LOV MD size max = EA_MAX = 4000
- * symlink: FNAME_MAX + PATH_MAX <- largest
- * link: FNAME_MAX + PATH_MAX (mds_rec_link < mds_rec_create)
- * rename: FNAME_MAX + FNAME_MAX
- * open: FNAME_MAX + EA_MAX
- *
- * MDS_MAXREQSIZE ~= 4736 bytes =
- * lustre_msg + ldlm_request + mds_body + mds_rec_create + FNAME_MAX + PATH_MAX
- *
- * Realistic size is about 512 bytes (20 character name + 128 char symlink),
- * except in the open case where there are a large number of OSTs in a LOV.
- */
-#define MDS_MAXREQSIZE (5 * 1024)
-
-#define OST_MAX_THREADS 36UL
-#define OST_NUM_THREADS max(min_t(unsigned long, num_physpages / 8192, \
- OST_MAX_THREADS), 2UL)
-#define OST_NBUFS (64 * smp_num_cpus)
-#define OST_BUFSIZE (8 * 1024)
-/*GSS service parameters*/
-#define GKS_NBUFS (64 * smp_num_cpus)
-#define GKS_BUFSIZE (8 * 1024)
-#define GKT_MAX_THREADS 32UL
-#define GKT_NUM_THREADS max(min_t(unsigned long, num_physpages / 8192, \
- GKT_MAX_THREADS), 2UL)
-
-#define GKS_MAXREQSIZE (5 * 1024)
-
-
-/* OST_MAXREQSIZE ~= 1640 bytes =
- * lustre_msg + obdo + 16 * obd_ioobj + 64 * niobuf_remote
- *
- * - single object with 16 pages is 512 bytes
- * - OST_MAXREQSIZE must be at least 1 page of cookies plus some spillover
- */
-#define OST_MAXREQSIZE (5 * 1024)
-
-#define PTLBD_NUM_THREADS 4
-#define PTLBD_NBUFS 64
-#define PTLBD_BUFSIZE (32 * 1024)
-#define PTLBD_MAXREQSIZE 1024
-
-struct ptlrpc_peer {
- ptl_process_id_t peer_id;
- struct ptlrpc_ni *peer_ni;
-};
-
-struct ptlrpc_connection {
- struct list_head c_link;
- struct ptlrpc_peer c_peer;
- struct obd_uuid c_remote_uuid;
- atomic_t c_refcount;
-};
-
-struct ptlrpc_client {
- __u32 cli_request_portal;
- __u32 cli_reply_portal;
- char *cli_name;
-};
-
-/* state flags of requests */
-/* XXX only ones left are those used by the bulk descs as well! */
-#define PTL_RPC_FL_INTR (1 << 0) /* reply wait was interrupted by user */
-#define PTL_RPC_FL_TIMEOUT (1 << 7) /* request timed out waiting for reply */
-
-#define REQ_MAX_ACK_LOCKS 8
-
-#define SWAB_PARANOIA 1
-#if SWAB_PARANOIA
-/* unpacking: assert idx not unpacked already */
-#define LASSERT_REQSWAB(rq, idx) \
-do { \
- LASSERT ((idx) < sizeof ((rq)->rq_req_swab_mask) * 8); \
- LASSERT (((rq)->rq_req_swab_mask & (1 << (idx))) == 0); \
- (rq)->rq_req_swab_mask |= (1 << (idx)); \
-} while (0)
-
-#define LASSERT_REPSWAB(rq, idx) \
-do { \
- LASSERT ((idx) < sizeof ((rq)->rq_rep_swab_mask) * 8); \
- LASSERT (((rq)->rq_rep_swab_mask & (1 << (idx))) == 0); \
- (rq)->rq_rep_swab_mask |= (1 << (idx)); \
-} while (0)
-
-/* just looking: assert idx already unpacked */
-#define LASSERT_REQSWABBED(rq, idx) \
-LASSERT ((idx) < sizeof ((rq)->rq_req_swab_mask) * 8 && \
- ((rq)->rq_req_swab_mask & (1 << (idx))) != 0)
-
-#define LASSERT_REPSWABBED(rq, idx) \
-LASSERT ((idx) < sizeof ((rq)->rq_rep_swab_mask) * 8 && \
- ((rq)->rq_rep_swab_mask & (1 << (idx))) != 0)
-#else
-#define LASSERT_REQSWAB(rq, idx)
-#define LASSERT_REPSWAB(rq, idx)
-#define LASSERT_REQSWABBED(rq, idx)
-#define LASSERT_REPSWABBED(rq, idx)
-#endif
-
-union ptlrpc_async_args {
- /* Scratchpad for passing args to completion interpreter. Users
- * cast to the struct of their choosing, and LASSERT that this is
- * big enough. For _tons_ of context, OBD_ALLOC a struct and store
- * a pointer to it here. The pointer_arg ensures this struct is at
- * least big enough for that. */
- void *pointer_arg[9];
- __u64 space[4];
-};
-
-struct ptlrpc_request_set;
-typedef int (*set_interpreter_func)(struct ptlrpc_request_set *, void *, int);
-
-struct ptlrpc_request_set {
- int set_remaining; /* # uncompleted requests */
- wait_queue_head_t set_waitq;
- wait_queue_head_t *set_wakeup_ptr;
- struct list_head set_requests;
- set_interpreter_func set_interpret; /* completion callback */
- void *set_arg; /* completion context */
- /* locked so that any old caller can communicate requests to
- * the set holder who can then fold them into the lock-free set */
- spinlock_t set_new_req_lock;
- struct list_head set_new_requests;
-};
-
-struct ptlrpc_bulk_desc;
-
-/*
- * ptlrpc callback & work item stuff
- */
-struct ptlrpc_cb_id {
- void (*cbid_fn)(ptl_event_t *ev); /* specific callback fn */
- void *cbid_arg; /* additional arg */
-};
-
-struct ptlrpc_cred;
-struct ptlrpc_svcsec;
-
-#define RS_MAX_LOCKS 4
-#define RS_DEBUG 1
-
-struct ptlrpc_reply_state {
- struct ptlrpc_cb_id rs_cb_id;
- struct list_head rs_list;
- struct list_head rs_exp_list;
- struct list_head rs_obd_list;
-#if RS_DEBUG
- struct list_head rs_debug_list;
-#endif
- /* updates to following flag serialised by srv_request_lock */
- unsigned int rs_difficult:1; /* ACK/commit stuff */
- unsigned int rs_scheduled:1; /* being handled? */
- unsigned int rs_scheduled_ever:1; /* any schedule attempts? */
- unsigned int rs_handled:1; /* been handled yet? */
- unsigned int rs_on_net:1; /* reply_out_callback pending? */
-
- struct ptlrpc_svcsec *rs_svcsec;
- char *rs_buf; /* backend buffer */
- int rs_buf_len; /* backend buffer length */
- char *rs_repbuf; /* will be sent on wire */
- int rs_repbuf_len; /* max on-wire data length */
- int rs_repdata_len; /* actual on-wire data length */
- struct lustre_msg *rs_msg; /* lustre msg pointer */
- int rs_msg_len; /* length of lustre msg */
-
- __u64 rs_transno;
- __u64 rs_xid;
- struct obd_export *rs_export;
- struct ptlrpc_srv_ni *rs_srv_ni;
- ptl_handle_md_t rs_md_h;
-
- /* locks awaiting client reply ACK */
- int rs_nlocks;
- struct lustre_handle rs_locks[RS_MAX_LOCKS];
- ldlm_mode_t rs_modes[RS_MAX_LOCKS];
- struct llog_create_locks *rs_llog_locks;
-};
-
-struct ptlrpc_request {
- int rq_type; /* one of PTL_RPC_MSG_* */
- struct list_head rq_list;
- int rq_status;
- spinlock_t rq_lock;
- /* client-side flags */
- unsigned int rq_intr:1, rq_replied:1, rq_err:1,
- rq_timedout:1, rq_resend:1, rq_restart:1, rq_replay:1,
- rq_no_resend:1, rq_waiting:1, rq_receiving_reply:1,
- rq_no_delay:1, rq_net_err:1, rq_req_wrapped:1,
- rq_ptlrpcs_restart:1, rq_ptlrpcs_err:1;
- int rq_phase;
- /* client-side refcount for SENT race */
- atomic_t rq_refcount;
-
- int rq_request_portal; /* XXX FIXME bug 249 */
- int rq_reply_portal; /* XXX FIXME bug 249 */
-
- /* client-side # reply bytes actually received */
- int rq_nob_received;
-
- int rq_reqlen;
- struct lustre_msg *rq_reqmsg;
-
- int rq_timeout;
- int rq_replen;
- struct lustre_msg *rq_repmsg;
- __u64 rq_transno;
- __u64 rq_xid;
- struct list_head rq_replay_list;
-
- struct ptlrpc_cred *rq_cred; /* client side */
- struct ptlrpc_svcsec *rq_svcsec; /* server side */
- /* flavor of request, on both client & server */
- __u32 rq_req_secflvr;
- /* server side security tracking data, need cleanup */
- void *rq_svcsec_data; /* server security data */
- unsigned int rq_remote_realm:1, /* from remote realm */
- rq_auth_usr_mds:1, /* auth as mds svc cred */
- rq_auth_usr_oss:1; /* auth as oss svc cred */
- uid_t rq_auth_uid;
- uid_t rq_mapped_uid;
-
- char *rq_reqbuf; /* backend request buffer */
- int rq_reqbuf_len; /* backend request buffer length */
- int rq_reqdata_len; /* actual request data length */
- char *rq_repbuf; /* backend reply buffer */
- int rq_repbuf_len; /* backend reply buffer length */
- int rq_repdata_len; /* actual reply data length, not used yet */
-
-#if SWAB_PARANOIA
- __u32 rq_req_swab_mask;
- __u32 rq_rep_swab_mask;
+/* XXX Liang: should be moved to other header instead of here */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,4)
+#ifndef WITH_GROUP_INFO
+#define WITH_GROUP_INFO
#endif
-
- int rq_import_generation;
- enum lustre_imp_state rq_send_state;
-
- /* client+server request */
- ptl_handle_md_t rq_req_md_h;
- struct ptlrpc_cb_id rq_req_cbid;
-
- /* client-side... */
- struct timeval rq_rpcd_start;
-
- /* server-side... */
- struct timeval rq_arrival_time; /* request arrival time */
- struct ptlrpc_reply_state *rq_reply_state; /* separated reply state */
- struct ptlrpc_request_buffer_desc *rq_rqbd; /* incoming request buffer */
-#if CRAY_PORTALS
- ptl_uid_t rq_uid; /* peer uid, used in MDS only */
#endif
-
- /* client-only incoming reply */
- ptl_handle_md_t rq_reply_md_h;
- wait_queue_head_t rq_reply_waitq;
- struct ptlrpc_cb_id rq_reply_cbid;
-
- struct ptlrpc_peer rq_peer; /* XXX see service.c can this be factored away? */
- char rq_peerstr[PTL_NALFMT_SIZE];
- struct obd_export *rq_export;
- struct obd_import *rq_import;
-
- void (*rq_replay_cb)(struct ptlrpc_request *);
- void (*rq_commit_cb)(struct ptlrpc_request *);
- void *rq_cb_data;
-
- struct ptlrpc_bulk_desc *rq_bulk; /* client side bulk */
- time_t rq_sent; /* when the request was sent */
-
- struct ptlrpc_service *rq_svc;
-
- /* Multi-rpc bits */
- struct list_head rq_set_chain;
- struct ptlrpc_request_set *rq_set;
- void *rq_interpret_reply; /* Async completion handler */
- union ptlrpc_async_args rq_async_args; /* Async completion context */
- void * rq_ptlrpcd_data;
-};
-
-
-#define RQ_PHASE_NEW 0xebc0de00
-#define RQ_PHASE_RPC 0xebc0de01
-#define RQ_PHASE_BULK 0xebc0de02
-#define RQ_PHASE_INTERPRET 0xebc0de03
-#define RQ_PHASE_COMPLETE 0xebc0de04
-
-/* Spare the preprocessor, spoil the bugs. */
-#define FLAG(field, str) (field ? str : "")
-
-#define DEBUG_REQ_FLAGS(req) \
- ((req->rq_phase == RQ_PHASE_NEW) ? "New" : \
- (req->rq_phase == RQ_PHASE_RPC) ? "Rpc" : \
- (req->rq_phase == RQ_PHASE_INTERPRET) ? "Interpret" : \
- (req->rq_phase == RQ_PHASE_COMPLETE) ? "Complete" : "?phase?"), \
- FLAG(req->rq_intr, "I"), FLAG(req->rq_replied, "R"), \
- FLAG(req->rq_err, "E"), \
- FLAG(req->rq_timedout, "X") /* eXpired */, FLAG(req->rq_resend, "S"), \
- FLAG(req->rq_restart, "T"), FLAG(req->rq_replay, "P"), \
- FLAG(req->rq_no_resend, "N"), \
- FLAG(req->rq_waiting, "W")
-
-#define REQ_FLAGS_FMT "%s:%s%s%s%s%s%s%s%s%s"
-
-#define DEBUG_REQ(level, req, fmt, args...) \
-do { \
-CDEBUG(level, "@@@ " fmt \
- " req@%p x"LPD64"/t"LPD64" o%d->%s@%s:%d lens %d/%d ref %d fl " \
- REQ_FLAGS_FMT"/%x/%x rc %d/%d\n" , ## args, req, req->rq_xid, \
- req->rq_transno, \
- req->rq_reqmsg ? req->rq_reqmsg->opc : -1, \
- req->rq_import ? (char *)req->rq_import->imp_target_uuid.uuid : \
- req->rq_export ? (char*)req->rq_export->exp_client_uuid.uuid : "<?>",\
- req->rq_import ? \
- (char *)req->rq_import->imp_connection->c_remote_uuid.uuid : \
- req->rq_export ? \
- (char*)req->rq_export->exp_connection->c_remote_uuid.uuid : "<?>", \
- (req->rq_import && req->rq_import->imp_client) ? \
- req->rq_import->imp_client->cli_request_portal : -1, \
- req->rq_reqlen, req->rq_replen, \
- atomic_read(&req->rq_refcount), \
- DEBUG_REQ_FLAGS(req), \
- req->rq_reqmsg ? req->rq_reqmsg->flags : 0, \
- req->rq_repmsg ? req->rq_repmsg->flags : 0, \
- req->rq_status, req->rq_repmsg ? req->rq_repmsg->status : 0); \
-} while (0)
-
-struct ptlrpc_bulk_page {
- struct list_head bp_link;
- int bp_buflen;
- int bp_pageoffset; /* offset within a page */
- struct page *bp_page;
-};
-
-#define BULK_GET_SOURCE 0
-#define BULK_PUT_SINK 1
-#define BULK_GET_SINK 2
-#define BULK_PUT_SOURCE 3
-
-struct ptlrpc_bulk_desc {
- unsigned int bd_success:1; /* completed successfully */
- unsigned int bd_network_rw:1; /* accessible to the network */
- unsigned int bd_type:2; /* {put,get}{source,sink} */
- unsigned int bd_registered:1; /* client side */
- spinlock_t bd_lock; /* serialise with callback */
- int bd_import_generation;
- struct obd_export *bd_export;
- struct obd_import *bd_import;
- __u32 bd_portal;
- struct ptlrpc_request *bd_req; /* associated request */
- wait_queue_head_t bd_waitq; /* server side only WQ */
- int bd_iov_count; /* # entries in bd_iov */
- int bd_max_iov; /* allocated size of bd_iov */
- int bd_nob; /* # bytes covered */
- int bd_nob_transferred; /* # bytes GOT/PUT */
-
- __u64 bd_last_xid;
-
- struct ptlrpc_cb_id bd_cbid; /* network callback info */
- ptl_handle_md_t bd_md_h; /* associated MD */
-
-#if (!CRAY_PORTALS && defined(__KERNEL__))
- ptl_kiov_t bd_iov[0];
-#else
- ptl_md_iovec_t bd_iov[0];
-#endif
-};
-
-struct ptlrpc_thread {
- struct list_head t_link;
-
- __u32 t_flags;
- wait_queue_head_t t_ctl_waitq;
-};
-
-struct ptlrpc_request_buffer_desc {
- struct list_head rqbd_list;
- struct ptlrpc_srv_ni *rqbd_srv_ni;
- ptl_handle_md_t rqbd_md_h;
- int rqbd_refcount;
- char *rqbd_buffer;
- struct ptlrpc_cb_id rqbd_cbid;
- struct ptlrpc_request rqbd_req;
-};
-
-/* event queues are per-ni, because one day we may get a hardware
- * supported NAL that delivers events asynchonously wrt kernel portals
- * into the eq.
- */
-struct ptlrpc_ni { /* Generic interface state */
- char *pni_name;
- int pni_number;
- ptl_handle_ni_t pni_ni_h;
- ptl_handle_eq_t pni_eq_h;
-};
-
-struct ptlrpc_srv_ni {
- /* Interface-specific service state */
- struct ptlrpc_service *sni_service; /* owning service */
- struct ptlrpc_ni *sni_ni; /* network interface */
- struct list_head sni_active_rqbds; /* req buffers receiving */
- struct list_head sni_active_replies; /* all the active replies */
- int sni_nrqbd_receiving; /* # posted request buffers */
-};
-
-typedef int (*svc_handler_t)(struct ptlrpc_request *req);
-
-struct ptlrpc_service {
- struct list_head srv_list; /* chain thru all services */
- int srv_max_req_size; /* biggest request to receive */
- int srv_buf_size; /* size of individual buffers */
- int srv_nbuf_per_group; /* # buffers to allocate in 1 group */
- int srv_nbufs; /* total # req buffer descs allocated */
- int srv_nthreads; /* # running threads */
- int srv_n_difficult_replies; /* # 'difficult' replies */
- int srv_n_active_reqs; /* # reqs being served */
- int srv_rqbd_timeout; /* timeout before re-posting reqs */
- int srv_watchdog_timeout; /* soft watchdog timeout, in ms */
-
- __u32 srv_req_portal;
- __u32 srv_rep_portal;
-
- int srv_n_queued_reqs; /* # reqs waiting to be served */
- struct list_head srv_request_queue; /* reqs waiting for service */
-
- struct list_head srv_idle_rqbds; /* request buffers to be reposted */
-
- atomic_t srv_outstanding_replies;
- struct list_head srv_reply_queue; /* replies waiting for service */
-
- wait_queue_head_t srv_waitq; /* all threads sleep on this */
-
- struct list_head srv_threads;
- struct obd_device *srv_obddev;
- svc_handler_t srv_handler;
-
- char *srv_name; /* only statically allocated strings here; we don't clean them */
-
- spinlock_t srv_lock;
-
- struct proc_dir_entry *srv_procroot;
- struct lprocfs_stats *srv_stats;
-
- struct ptlrpc_srv_ni srv_interfaces[0];
-};
-
-static inline char *ptlrpc_peernid2str(struct ptlrpc_peer *p, char *str)
-{
- LASSERT(p->peer_ni != NULL);
- return (portals_nid2str(p->peer_ni->pni_number, p->peer_id.nid, str));
-}
-
-static inline char *ptlrpc_id2str(struct ptlrpc_peer *p, char *str)
-{
- LASSERT(p->peer_ni != NULL);
- return (portals_id2str(p->peer_ni->pni_number, p->peer_id, str));
-}
-
-
-/* ptlrpc/events.c */
-extern struct ptlrpc_ni ptlrpc_interfaces[];
-extern int ptlrpc_ninterfaces;
-extern int ptlrpc_uuid_to_peer(struct obd_uuid *uuid, struct ptlrpc_peer *peer);
-extern void request_out_callback (ptl_event_t *ev);
-extern void rawrpc_request_out_callback(ptl_event_t *ev);
-extern void reply_in_callback(ptl_event_t *ev);
-extern void client_bulk_callback (ptl_event_t *ev);
-extern void request_in_callback(ptl_event_t *ev);
-extern void reply_out_callback(ptl_event_t *ev);
-extern void server_bulk_callback (ptl_event_t *ev);
-extern int ptlrpc_default_nal(void);
-
-/* ptlrpc/connection.c */
-void ptlrpc_dump_connections(void);
-void ptlrpc_readdress_connection(struct ptlrpc_connection *, struct obd_uuid *);
-struct ptlrpc_connection *ptlrpc_get_connection(struct ptlrpc_peer *peer,
- struct obd_uuid *uuid);
-int ptlrpc_put_connection(struct ptlrpc_connection *c);
-struct ptlrpc_connection *ptlrpc_connection_addref(struct ptlrpc_connection *);
-void ptlrpc_init_connection(void);
-void ptlrpc_cleanup_connection(void);
-extern ptl_pid_t ptl_get_pid(void);
-
-/* ptlrpc/niobuf.c */
-int ptlrpc_start_bulk_transfer(struct ptlrpc_bulk_desc *desc);
-void ptlrpc_abort_bulk(struct ptlrpc_bulk_desc *desc);
-int ptlrpc_register_bulk(struct ptlrpc_request *req);
-void ptlrpc_unregister_bulk (struct ptlrpc_request *req);
-
-static inline int ptlrpc_bulk_active (struct ptlrpc_bulk_desc *desc)
-{
- unsigned long flags;
- int rc;
-
- spin_lock_irqsave (&desc->bd_lock, flags);
- rc = desc->bd_network_rw;
- spin_unlock_irqrestore (&desc->bd_lock, flags);
- return (rc);
-}
-
-int ptlrpc_send_reply(struct ptlrpc_request *req, int);
-int ptlrpc_reply(struct ptlrpc_request *req);
-int ptlrpc_error(struct ptlrpc_request *req);
-void ptlrpc_resend_req(struct ptlrpc_request *request);
-int ptl_send_rpc(struct ptlrpc_request *request);
-int ptlrpc_register_rqbd (struct ptlrpc_request_buffer_desc *rqbd);
-
-struct ptlrpc_request * ptl_do_rawrpc(struct obd_import *imp,
- char *reqbuf, int reqbuf_len, int reqlen,
- char *repbuf, int repbuf_len,
- int *replenp, int timeout, int *res);
-int ptl_do_rawrpc_simple(struct obd_import *imp,
- char *reqbuf, int reqlen,
- char *repbuf, int *replenp);
-void rawrpc_req_finished(struct ptlrpc_request *req);
-
-/* ptlrpc/client.c */
-void ptlrpc_init_client(int req_portal, int rep_portal, char *name,
- struct ptlrpc_client *);
-void ptlrpc_cleanup_client(struct obd_import *imp);
-struct ptlrpc_connection *ptlrpc_uuid_to_connection(struct obd_uuid *uuid);
-
-static inline int
-ptlrpc_client_receiving_reply (struct ptlrpc_request *req)
-{
- unsigned long flags;
- int rc;
-
- spin_lock_irqsave(&req->rq_lock, flags);
- rc = req->rq_receiving_reply;
- spin_unlock_irqrestore(&req->rq_lock, flags);
- return (rc);
-}
-
-static inline int
-ptlrpc_client_replied (struct ptlrpc_request *req)
-{
- unsigned long flags;
- int rc;
-
- spin_lock_irqsave(&req->rq_lock, flags);
- rc = req->rq_replied;
- spin_unlock_irqrestore(&req->rq_lock, flags);
- return (rc);
-}
-
-static inline void
-ptlrpc_wake_client_req (struct ptlrpc_request *req)
-{
- if (req->rq_set == NULL)
- wake_up(&req->rq_reply_waitq);
- else
- wake_up(&req->rq_set->set_waitq);
-}
-
-int ptlrpc_queue_wait(struct ptlrpc_request *req);
-int ptlrpc_replay_req(struct ptlrpc_request *req);
-void ptlrpc_unregister_reply(struct ptlrpc_request *req);
-void ptlrpc_restart_req(struct ptlrpc_request *req);
-void ptlrpc_abort_inflight(struct obd_import *imp);
-
-struct ptlrpc_request_set *ptlrpc_prep_set(void);
-int ptlrpc_set_next_timeout(struct ptlrpc_request_set *);
-int ptlrpc_check_set(struct ptlrpc_request_set *set);
-int ptlrpc_set_wait(struct ptlrpc_request_set *);
-int ptlrpc_expired_set(void *data);
-void ptlrpc_interrupted_set(void *data);
-void ptlrpc_mark_interrupted(struct ptlrpc_request *req);
-void ptlrpc_set_destroy(struct ptlrpc_request_set *);
-void ptlrpc_set_add_req(struct ptlrpc_request_set *, struct ptlrpc_request *);
-void ptlrpc_set_add_new_req(struct ptlrpc_request_set *,
- struct ptlrpc_request *);
-
-struct ptlrpc_request *ptlrpc_prep_req(struct obd_import *imp, __u32 version,
- int opcode, int count, int *lengths,
- char **bufs);
-void ptlrpc_free_req(struct ptlrpc_request *request);
-void ptlrpc_req_finished(struct ptlrpc_request *request);
-void ptlrpc_req_finished_with_imp_lock(struct ptlrpc_request *request);
-struct ptlrpc_request *ptlrpc_request_addref(struct ptlrpc_request *req);
-struct ptlrpc_bulk_desc *ptlrpc_prep_bulk_imp (struct ptlrpc_request *req,
- int npages, int type, int portal);
-struct ptlrpc_bulk_desc *ptlrpc_prep_bulk_exp(struct ptlrpc_request *req,
- int npages, int type, int portal);
-void ptlrpc_free_bulk(struct ptlrpc_bulk_desc *bulk);
-void ptlrpc_prep_bulk_page(struct ptlrpc_bulk_desc *desc,
- struct page *page, int pageoffset, int len);
-void ptlrpc_retain_replayable_request(struct ptlrpc_request *req,
- struct obd_import *imp);
-__u64 ptlrpc_next_xid(void);
-
-/* ptlrpc/service.c */
-void ptlrpc_require_repack (struct ptlrpc_request *req);
-void ptlrpc_save_lock (struct ptlrpc_request *req,
- struct lustre_handle *lock, int mode);
-void ptlrpc_save_llog_lock (struct ptlrpc_request *req,
- struct llog_create_locks *lcl);
-void ptlrpc_commit_replies (struct obd_device *obd);
-void ptlrpc_schedule_difficult_reply (struct ptlrpc_reply_state *rs);
-struct ptlrpc_service *ptlrpc_init_svc(int nbufs, int bufsize, int max_req_size,
- int req_portal, int rep_portal,
- int watchdog_timeout, /* in ms */
- svc_handler_t, char *name,
- struct proc_dir_entry *proc_entry);
-void ptlrpc_stop_all_threads(struct ptlrpc_service *svc);
-int ptlrpc_start_n_threads(struct obd_device *dev, struct ptlrpc_service *svc,
- int cnt, char *base_name);
-int ptlrpc_start_thread(struct obd_device *dev, struct ptlrpc_service *svc,
- char *name);
-int ptlrpc_unregister_service(struct ptlrpc_service *service);
-int liblustre_check_services (void *arg);
-void ptlrpc_daemonize(void);
-
-
-struct ptlrpc_svc_data {
- char *name;
- struct ptlrpc_service *svc;
- struct ptlrpc_thread *thread;
- struct obd_device *dev;
-};
-
-/* ptlrpc/import.c */
-int ptlrpc_connect_import(struct obd_import *imp, char * new_uuid);
-int ptlrpc_init_import(struct obd_import *imp);
-int ptlrpc_disconnect_import(struct obd_import *imp);
-int ptlrpc_import_recovery_state_machine(struct obd_import *imp);
-
-/* ptlrpc/pack_generic.c */
-int lustre_msg_swabbed(struct lustre_msg *msg);
-int lustre_msg_check_version(struct lustre_msg *msg, __u32 version);
-int lustre_secdesc_size(void);
-void lustre_pack_secdesc(struct ptlrpc_request *req, int size);
-int lustre_pack_request(struct ptlrpc_request *, int count, int *lens,
- char **bufs);
-int lustre_pack_reply(struct ptlrpc_request *, int count, int *lens,
- char **bufs);
-void lustre_free_reply_state(struct ptlrpc_reply_state *rs);
-int lustre_msg_size(int count, int *lengths);
-int lustre_unpack_msg(struct lustre_msg *m, int len);
-void *lustre_msg_buf(struct lustre_msg *m, int n, int minlen);
-char *lustre_msg_string (struct lustre_msg *m, int n, int max_len);
-void *lustre_swab_buf(struct lustre_msg *, int n, int minlen, void *swabber);
-void *lustre_swab_reqbuf (struct ptlrpc_request *req, int n, int minlen,
- void *swabber);
-void *lustre_swab_repbuf (struct ptlrpc_request *req, int n, int minlen,
- void *swabber);
-
-void lustre_init_msg (struct lustre_msg *msg, int count,
- int *lens, char **bufs);
-void *mdc_setattr_pack(struct lustre_msg *msg, int offset,
- struct mdc_op_data *op_data, struct iattr *iattr,
- void *ea, int ealen, void *ea2, int ea2len,
- void *ea3, int ea3len);
-void *mdc_create_pack(struct lustre_msg *msg, int offset,
- struct mdc_op_data *op_data, __u32 mode,
- __u64 rdev, const void *data, int datalen);
-void *mdc_unlink_pack(struct lustre_msg *msg, int offset,
- struct mdc_op_data *data);
-void *mdc_link_pack(struct lustre_msg *msg, int offset,
- struct mdc_op_data *data);
-void *mdc_rename_pack(struct lustre_msg *msg, int offset,
- struct mdc_op_data *data,
- const char *old, int oldlen,
- const char *new, int newlen);
-__u32 mds_pack_open_flags(__u32 flags);
-
-/* lustre id helper functions and macros. */
-static inline
-void mdc_pack_id(struct lustre_id *id, obd_id ino,
- __u32 gen, int type, __u64 mds,
- __u64 fid)
-{
- LASSERT(id != NULL);
-
- id->li_fid.lf_id = fid;
- id->li_fid.lf_group = mds;
-
- id->li_stc.u.e3s.l3s_ino = ino;
- id->li_stc.u.e3s.l3s_gen = gen;
- id->li_stc.u.e3s.l3s_type = type;
-}
-
-#define id_ino(id) \
- (id)->li_stc.u.e3s.l3s_ino
-
-#define id_gen(id) \
- (id)->li_stc.u.e3s.l3s_gen
-
-#define id_type(id) \
- (id)->li_stc.u.e3s.l3s_type
-
-#define id_fid(id) \
- (id)->li_fid.lf_id
-
-#define id_group(id) \
- (id)->li_fid.lf_group
-
-#if 0
-#define id_version(id) \
- (id)->li_fid.lf_version
-#else
-#define id_version(id)
-#endif
-
-#define id_assign_fid(id1, id2) \
- ((id1)->li_fid = (id2)->li_fid)
-
-#define id_assign_stc(id1, id2) \
- ((id1)->li_stc = (id2)->li_stc)
-
-#define id_equal(id1, id2) \
- (id_ino((id1)) == id_ino((id2)) && \
- id_gen((id1)) == id_gen((id2)) && \
- id_fid((id1)) == id_fid((id2)) && \
- id_group((id1)) == id_group(id2))
-
-#define id_equal_fid(id1, id2) \
- (id_fid((id1)) == id_fid((id2)) && \
- id_group((id1)) == id_group((id2)))
-
-#define id_equal_stc(id1, id2) \
- (id_ino((id1)) == id_ino((id2)) && \
- id_gen((id1)) == id_gen((id2)))
-
-#define id_le_to_cpu(id) \
- do { \
- id_fid((id)) = le64_to_cpu(id_fid((id))); \
- id_group((id)) = le64_to_cpu(id_group((id))); \
- /*id_version((id)) = le32_to_cpu(id_version((id)));*/ \
- id_ino((id)) = le64_to_cpu(id_ino((id))); \
- id_gen((id)) = le32_to_cpu(id_gen((id))); \
- id_type((id)) = le32_to_cpu(id_type((id))); \
- } while (0)
-
-#define id_cpu_to_le(id) \
- do { \
- id_fid((id)) = cpu_to_le64(id_fid((id))); \
- id_group((id)) = cpu_to_le64(id_group((id))); \
- /*id_version((id)) = cpu_to_le32(id_version((id)));*/ \
- id_ino((id)) = cpu_to_le64(id_ino((id))); \
- id_gen((id)) = cpu_to_le32(id_gen((id))); \
- id_type((id)) = cpu_to_le32(id_type((id))); \
- } while (0)
-
-/* ldlm/ldlm_lib.c */
-int client_obd_setup(struct obd_device *obddev, obd_count len, void *buf);
-int client_obd_cleanup(struct obd_device * obddev, int flags);
-int client_connect_import(struct lustre_handle *conn, struct obd_device *obd,
- struct obd_uuid *cluuid,
- struct obd_connect_data *conn_data,
- unsigned long);
-int client_disconnect_export(struct obd_export *exp, unsigned long);
-
-int client_import_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
- int priority);
-int client_import_del_conn(struct obd_import *imp, struct obd_uuid *uuid);
-int import_set_conn_priority(struct obd_import *imp, struct obd_uuid *uuid);
-
-
-/* ptlrpc/pinger.c */
-int ptlrpc_pinger_add_import(struct obd_import *imp);
-int ptlrpc_pinger_del_import(struct obd_import *imp);
-int ptlrpc_check_and_wait_suspend(struct ptlrpc_request *req);
-
-/* ptlrpc/ptlrpcd.c */
-void ptlrpcd_wake(struct ptlrpc_request *req);
-void ptlrpcd_add_req(struct ptlrpc_request *req);
-int ptlrpcd_addref(void);
-void ptlrpcd_decref(void);
-
-/* ptlrpc/lproc_ptlrpc.c */
-#ifdef __KERNEL__
-void ptlrpc_lprocfs_register_obd(struct obd_device *obddev);
-void ptlrpc_lprocfs_unregister_obd(struct obd_device *obddev);
-#else
-#define ptlrpc_lprocfs_register_obd(param...) do{}while(0)
-#define ptlrpc_lprocfs_unregister_obd(param...) do{}while(0)
-#endif
-
-/* ptlrpc/llog_server.c */
-int llog_origin_handle_open(struct ptlrpc_request *req);
-int llog_origin_handle_prev_block(struct ptlrpc_request *req);
-int llog_origin_handle_next_block(struct ptlrpc_request *req);
-int llog_origin_handle_read_header(struct ptlrpc_request *req);
-int llog_origin_handle_close(struct ptlrpc_request *req);
-int llog_origin_handle_cancel(struct ptlrpc_request *req);
-int llog_catinfo(struct ptlrpc_request *req);
-
-/* ptlrpc/llog_client.c */
-extern struct llog_operations llog_client_ops;
#endif
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