/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2002, 2003 Cluster File Systems, Inc.
+ * GPL HEADER START
*
- * This file is part of Lustre, http://www.lustre.org.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
#ifndef _LUSTRE_NET_H
#error Unsupported operating system.
#endif
-#include <libcfs/kp30.h>
+#include <libcfs/libcfs.h>
// #include <obd.h>
#include <lnet/lnet.h>
#include <lustre/lustre_idl.h>
#include <lustre_ha.h>
+#include <lustre_sec.h>
#include <lustre_import.h>
#include <lprocfs_status.h>
+#include <lu_object.h>
+#include <lustre_req_layout.h>
+
+#include <obd_support.h>
/* MD flags we _always_ use */
#define PTLRPC_MD_OPTIONS 0
* considered full when less than ?_MAXREQSIZE is left in them.
*/
-#define LDLM_THREADS_AUTO_MIN min((int)(smp_num_cpus * smp_num_cpus * 2), 8)
-#define LDLM_THREADS_AUTO_MAX (LDLM_THREADS_AUTO_MIN * 16)
+#define LDLM_THREADS_AUTO_MIN (2)
+#define LDLM_THREADS_AUTO_MAX min_t(unsigned, cfs_num_online_cpus() * \
+ cfs_num_online_cpus() * 32, 128)
#define LDLM_BL_THREADS LDLM_THREADS_AUTO_MIN
-#define LDLM_NBUFS (64 * smp_num_cpus)
+#define LDLM_NBUFS (64 * cfs_num_online_cpus())
#define LDLM_BUFSIZE (8 * 1024)
#define LDLM_MAXREQSIZE (5 * 1024)
#define LDLM_MAXREPSIZE (1024)
+#define MDT_MIN_THREADS 2UL
+#define MDT_MAX_THREADS 512UL
+#define MDT_NUM_THREADS max(min_t(unsigned long, MDT_MAX_THREADS, \
+ cfs_num_physpages >> (25 - CFS_PAGE_SHIFT)), \
+ 2UL)
+
/* Absolute limits */
#define MDS_THREADS_MIN 2
#define MDS_THREADS_MAX 512
#define MDS_THREADS_MIN_READPAGE 2
-#define MDS_NBUFS (64 * smp_num_cpus)
+#define MDS_NBUFS (64 * cfs_num_online_cpus())
#define MDS_BUFSIZE (8 * 1024)
/* Assume file name length = FNAME_MAX = 256 (true for ext3).
* path name length = PATH_MAX = 4096
* except in the open case where there are a large number of OSTs in a LOV.
*/
#define MDS_MAXREQSIZE (5 * 1024)
-#define MDS_MAXREPSIZE max(9 * 1024, 280 + LOV_MAX_STRIPE_COUNT * 56)
+#define MDS_MAXREPSIZE max(9 * 1024, 362 + LOV_MAX_STRIPE_COUNT * 56)
+
+/* FLD_MAXREQSIZE == lustre_msg + __u32 padding + ptlrpc_body + opc + md_fld */
+#define FLD_MAXREQSIZE (160)
+
+/* FLD_MAXREPSIZE == lustre_msg + ptlrpc_body + md_fld */
+#define FLD_MAXREPSIZE (152)
+
+/* SEQ_MAXREQSIZE == lustre_msg + __u32 padding + ptlrpc_body + opc + lu_range +
+ * __u32 padding */
+#define SEQ_MAXREQSIZE (160)
+
+/* SEQ_MAXREPSIZE == lustre_msg + ptlrpc_body + lu_range */
+#define SEQ_MAXREPSIZE (152)
#define MGS_THREADS_AUTO_MIN 2
#define MGS_THREADS_AUTO_MAX 32
-#define MGS_NBUFS (64 * smp_num_cpus)
+#define MGS_NBUFS (64 * cfs_num_online_cpus())
#define MGS_BUFSIZE (8 * 1024)
-#define MGS_MAXREQSIZE (8 * 1024)
+#define MGS_MAXREQSIZE (7 * 1024)
#define MGS_MAXREPSIZE (9 * 1024)
/* Absolute limits */
-#define OSS_THREADS_MIN 2
+#define OSS_THREADS_MIN 3 /* difficult replies, HPQ, others */
#define OSS_THREADS_MAX 512
-#define OST_NBUFS (64 * smp_num_cpus)
+#define OST_NBUFS (64 * cfs_num_online_cpus())
#define OST_BUFSIZE (8 * 1024)
/* OST_MAXREQSIZE ~= 4768 bytes =
* lustre_msg + obdo + 16 * obd_ioobj + 256 * niobuf_remote
#define OST_MAXREQSIZE (5 * 1024)
#define OST_MAXREPSIZE (9 * 1024)
+/* Macro to hide a typecast. */
+#define ptlrpc_req_async_args(req) ((void *)&req->rq_async_args)
+
struct ptlrpc_connection {
- struct list_head c_link;
+ cfs_hlist_node_t c_hash;
lnet_nid_t c_self;
lnet_process_id_t c_peer;
struct obd_uuid c_remote_uuid;
- atomic_t c_refcount;
+ cfs_atomic_t c_refcount;
};
struct ptlrpc_client {
- __u32 cli_request_portal;
- __u32 cli_reply_portal;
- char *cli_name;
+ __u32 cli_request_portal;
+ __u32 cli_reply_portal;
+ char *cli_name;
};
/* state flags of requests */
* 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];
+ void *pointer_arg[11];
+ __u64 space[6];
};
struct ptlrpc_request_set;
typedef int (*set_interpreter_func)(struct ptlrpc_request_set *, void *, int);
struct ptlrpc_request_set {
- int set_remaining; /* # uncompleted requests */
- cfs_waitq_t set_waitq;
- cfs_waitq_t *set_wakeup_ptr;
- struct list_head set_requests;
- set_interpreter_func set_interpret; /* completion callback */
- void *set_arg; /* completion context */
+ int set_remaining; /* # uncompleted requests */
+ cfs_waitq_t set_waitq;
+ cfs_waitq_t *set_wakeup_ptr;
+ cfs_list_t set_requests;
+ cfs_list_t set_cblist; /* list of completion callbacks */
+ 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;
+ cfs_spinlock_t set_new_req_lock;
+ cfs_list_t set_new_requests;
+};
+
+struct ptlrpc_set_cbdata {
+ cfs_list_t psc_item;
+ set_interpreter_func psc_interpret;
+ void *psc_data;
};
struct ptlrpc_bulk_desc;
void *cbid_arg; /* additional arg */
};
-#define RS_MAX_LOCKS 4
+#define RS_MAX_LOCKS 8
#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;
+ cfs_list_t rs_list;
+ cfs_list_t rs_exp_list;
+ cfs_list_t rs_obd_list;
#if RS_DEBUG
- struct list_head rs_debug_list;
+ cfs_list_t 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? */
- unsigned int rs_prealloc:1; /* rs from prealloc list */
-
+ /* A spinlock to protect the reply state flags */
+ cfs_spinlock_t rs_lock;
+ /* Reply state flags */
+ unsigned long rs_difficult:1; /* ACK/commit stuff */
+ unsigned long rs_no_ack:1; /* no ACK, even for
+ difficult requests */
+ unsigned long rs_scheduled:1; /* being handled? */
+ unsigned long rs_scheduled_ever:1;/* any schedule attempts? */
+ unsigned long rs_handled:1; /* been handled yet? */
+ unsigned long rs_on_net:1; /* reply_out_callback pending? */
+ unsigned long rs_prealloc:1; /* rs from prealloc list */
+ unsigned long rs_committed:1;/* the transaction was committed
+ and the rs was dispatched
+ by ptlrpc_commit_replies */
int rs_size;
+ __u32 rs_opc;
__u64 rs_transno;
__u64 rs_xid;
struct obd_export *rs_export;
struct ptlrpc_service *rs_service;
lnet_handle_md_t rs_md_h;
- atomic_t rs_refcount;
+ cfs_atomic_t rs_refcount;
+
+ struct ptlrpc_svc_ctx *rs_svc_ctx;
+ struct lustre_msg *rs_repbuf; /* wrapper */
+ int rs_repbuf_len; /* wrapper buf length */
+ int rs_repdata_len; /* wrapper msg length */
+ struct lustre_msg *rs_msg; /* reply message */
/* locks awaiting client reply ACK */
int rs_nlocks;
struct lustre_handle rs_locks[RS_MAX_LOCKS];
ldlm_mode_t rs_modes[RS_MAX_LOCKS];
- /* last member: variable sized reply message */
- struct lustre_msg *rs_msg;
};
struct ptlrpc_thread;
enum rq_phase {
- RQ_PHASE_NEW = 0xebc0de00,
- RQ_PHASE_RPC = 0xebc0de01,
- RQ_PHASE_BULK = 0xebc0de02,
- RQ_PHASE_INTERPRET = 0xebc0de03,
- RQ_PHASE_COMPLETE = 0xebc0de04,
+ RQ_PHASE_NEW = 0xebc0de00,
+ RQ_PHASE_RPC = 0xebc0de01,
+ RQ_PHASE_BULK = 0xebc0de02,
+ RQ_PHASE_INTERPRET = 0xebc0de03,
+ RQ_PHASE_COMPLETE = 0xebc0de04,
+ RQ_PHASE_UNREGISTERING = 0xebc0de05,
+ RQ_PHASE_UNDEFINED = 0xebc0de06
};
+/** Type of request interpreter call-back */
+typedef int (*ptlrpc_interpterer_t)(const struct lu_env *env,
+ struct ptlrpc_request *req,
+ void *arg, int rc);
+
struct ptlrpc_request_pool {
- spinlock_t prp_lock;
- struct list_head prp_req_list; /* list of ptlrpc_request structs */
+ cfs_spinlock_t prp_lock;
+ cfs_list_t prp_req_list; /* list of ptlrpc_request structs */
int prp_rq_size;
void (*prp_populate)(struct ptlrpc_request_pool *, int);
};
+struct lu_context;
+struct lu_env;
+
+struct ldlm_lock;
+
+struct ptlrpc_hpreq_ops {
+ /**
+ * Check if the lock handle of the given lock is the same as
+ * taken from the request.
+ */
+ int (*hpreq_lock_match)(struct ptlrpc_request *, struct ldlm_lock *);
+ /**
+ * Check if the request is a high priority one.
+ */
+ int (*hpreq_check)(struct ptlrpc_request *);
+};
+
+/**
+ * Represents remote procedure call.
+ */
struct ptlrpc_request {
int rq_type; /* one of PTL_RPC_MSG_* */
- struct list_head rq_list;
- struct list_head rq_history_list; /* server-side history */
- __u64 rq_history_seq; /* history sequence # */
+ cfs_list_t rq_list;
+ cfs_list_t rq_timed_list; /* server-side early replies */
+ cfs_list_t rq_history_list; /* server-side history */
+ cfs_list_t rq_exp_list; /* server-side per-export list */
+ struct ptlrpc_hpreq_ops *rq_ops; /* server-side hp handlers */
+ __u64 rq_history_seq; /* history sequence # */
+ /* the index of service's srv_at_array into which request is linked */
+ time_t rq_at_index;
int rq_status;
- spinlock_t rq_lock;
- /* client-side flags */
- unsigned int rq_intr:1, rq_replied:1, rq_err:1,
+ cfs_spinlock_t rq_lock;
+ /* client-side flags are serialized by rq_lock */
+ unsigned long rq_intr:1, rq_replied:1, rq_err:1,
rq_timedout:1, rq_resend:1, rq_restart:1,
/*
* when ->rq_replay is set, request is kept by the client even
*/
rq_replay:1,
rq_no_resend:1, rq_waiting:1, rq_receiving_reply:1,
- rq_no_delay:1, rq_net_err:1;
+ rq_no_delay:1, rq_net_err:1, rq_wait_ctx:1,
+ rq_early:1, rq_must_unlink:1,
+ rq_fake:1, /* this fake req */
+ /* server-side flags */
+ rq_packed_final:1, /* packed final reply */
+ rq_hp:1, /* high priority RPC */
+ rq_at_linked:1, /* link into service's srv_at_array */
+ rq_reply_truncate:1,
+ rq_committed:1;
+
enum rq_phase rq_phase; /* one of RQ_PHASE_* */
- atomic_t rq_refcount; /* client-side refcount for SENT race */
+ enum rq_phase rq_next_phase; /* one of RQ_PHASE_* to be used next */
+ cfs_atomic_t rq_refcount;/* client-side refcount for SENT race,
+ server-side refcounf for multiple replies */
struct ptlrpc_thread *rq_svc_thread; /* initial thread servicing req */
int rq_request_portal; /* XXX FIXME bug 249 */
int rq_reply_portal; /* XXX FIXME bug 249 */
- int rq_nob_received; /* client-side # reply bytes actually received */
-
+ int rq_nob_received; /* client-side:
+ * !rq_truncate : # reply bytes actually received,
+ * rq_truncate : required repbuf_len for resend */
int rq_reqlen;
struct lustre_msg *rq_reqmsg;
- int rq_timeout; /* time to wait for reply (seconds) */
int rq_replen;
struct lustre_msg *rq_repmsg;
__u64 rq_transno;
__u64 rq_xid;
- struct list_head rq_replay_list;
+ cfs_list_t rq_replay_list;
+
+ struct ptlrpc_cli_ctx *rq_cli_ctx; /* client's half ctx */
+ struct ptlrpc_svc_ctx *rq_svc_ctx; /* server's half ctx */
+ cfs_list_t rq_ctx_chain; /* link to waited ctx */
+
+ struct sptlrpc_flavor rq_flvr; /* client & server */
+ enum lustre_sec_part rq_sp_from;
+
+ unsigned long /* client/server security flags */
+ rq_ctx_init:1, /* context initiation */
+ rq_ctx_fini:1, /* context destroy */
+ rq_bulk_read:1, /* request bulk read */
+ rq_bulk_write:1, /* request bulk write */
+ /* server authentication flags */
+ rq_auth_gss:1, /* authenticated by gss */
+ rq_auth_remote:1, /* authed as remote user */
+ rq_auth_usr_root:1, /* authed as root */
+ rq_auth_usr_mdt:1, /* authed as mdt */
+ /* security tfm flags */
+ rq_pack_udesc:1,
+ rq_pack_bulk:1,
+ /* doesn't expect reply FIXME */
+ rq_no_reply:1,
+ rq_pill_init:1; /* pill initialized */
+
+ uid_t rq_auth_uid; /* authed uid */
+ uid_t rq_auth_mapped_uid; /* authed uid mapped to */
+
+ /* (server side), pointed directly into req buffer */
+ struct ptlrpc_user_desc *rq_user_desc;
+
+ /* early replies go to offset 0, regular replies go after that */
+ unsigned int rq_reply_off;
+
+ /* various buffer pointers */
+ struct lustre_msg *rq_reqbuf; /* req wrapper */
+ int rq_reqbuf_len; /* req wrapper buf len */
+ int rq_reqdata_len; /* req wrapper msg len */
+ char *rq_repbuf; /* rep buffer */
+ int rq_repbuf_len; /* rep buffer len */
+ struct lustre_msg *rq_repdata; /* rep wrapper msg */
+ int rq_repdata_len; /* rep wrapper msg len */
+ struct lustre_msg *rq_clrbuf; /* only in priv mode */
+ int rq_clrbuf_len; /* only in priv mode */
+ int rq_clrdata_len; /* only in priv mode */
__u32 rq_req_swab_mask;
__u32 rq_rep_swab_mask;
int rq_import_generation;
enum lustre_imp_state rq_send_state;
+ int rq_early_count; /* how many early replies (for stats) */
+
/* client+server request */
lnet_handle_md_t rq_req_md_h;
struct ptlrpc_cb_id rq_req_cbid;
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 request sent, seconds */
+ struct ptlrpc_bulk_desc *rq_bulk;/* client side bulk */
+
+ /* client outgoing req */
+ time_t rq_sent; /* when request/reply sent (secs), or
+ * time when request should be sent */
+
+ volatile time_t rq_deadline; /* when request must finish. volatile
+ so that servers' early reply updates to the deadline aren't
+ kept in per-cpu cache */
+ time_t rq_reply_deadline; /* when req reply unlink must finish. */
+ time_t rq_bulk_deadline; /* when req bulk unlink must finish. */
+ int rq_timeout; /* service time estimate (secs) */
/* Multi-rpc bits */
- struct list_head rq_set_chain;
+ cfs_list_t rq_set_chain;
struct ptlrpc_request_set *rq_set;
- void *rq_interpret_reply; /* Async completion handler */
+ /** Async completion handler */
+ ptlrpc_interpterer_t rq_interpret_reply;
union ptlrpc_async_args rq_async_args; /* Async completion context */
- void *rq_ptlrpcd_data;
struct ptlrpc_request_pool *rq_pool; /* Pool if request from
preallocated list */
-};
+ struct lu_context rq_session;
+ struct lu_context rq_recov_session;
-static inline void lustre_set_req_swabbed(struct ptlrpc_request *req, int index)
-{
- LASSERT(index < sizeof(req->rq_req_swab_mask) * 8);
- LASSERT((req->rq_req_swab_mask & (1 << index)) == 0);
- req->rq_req_swab_mask |= 1 << index;
-}
+ /* request format */
+ struct req_capsule rq_pill;
+};
-static inline void lustre_set_rep_swabbed(struct ptlrpc_request *req, int index)
+static inline int ptlrpc_req_interpret(const struct lu_env *env,
+ struct ptlrpc_request *req, int rc)
{
- LASSERT(index < sizeof(req->rq_rep_swab_mask) * 8);
- LASSERT((req->rq_rep_swab_mask & (1 << index)) == 0);
- req->rq_rep_swab_mask |= 1 << index;
+ if (req->rq_interpret_reply != NULL) {
+ req->rq_status = req->rq_interpret_reply(env, req,
+ &req->rq_async_args,
+ rc);
+ return req->rq_status;
+ }
+ return rc;
}
static inline int lustre_req_swabbed(struct ptlrpc_request *req, int index)
-{
+{
LASSERT(index < sizeof(req->rq_req_swab_mask) * 8);
return req->rq_req_swab_mask & (1 << index);
}
return req->rq_rep_swab_mask & (1 << index);
}
-#define SWAB_PARANOIA 1
+static inline int ptlrpc_req_need_swab(struct ptlrpc_request *req)
+{
+ return lustre_req_swabbed(req, MSG_PTLRPC_HEADER_OFF);
+}
-#if SWAB_PARANOIA
-/* unpacking: assert idx not unpacked already */
-#define LASSERT_REQSWAB(rq, idx) lustre_set_req_swabbed(rq, idx)
-#define LASSERT_REPSWAB(rq, idx) lustre_set_rep_swabbed(rq, idx)
+static inline int ptlrpc_rep_need_swab(struct ptlrpc_request *req)
+{
+ return lustre_rep_swabbed(req, MSG_PTLRPC_HEADER_OFF);
+}
-/* just looking: assert idx already unpacked */
-#define LASSERT_REQSWABBED(rq, idx) LASSERT(lustre_req_swabbed(rq, idx))
-#define LASSERT_REPSWABBED(rq, idx) LASSERT(lustre_rep_swabbed(rq, idx))
+static inline void lustre_set_req_swabbed(struct ptlrpc_request *req, int index)
+{
+ LASSERT(index < sizeof(req->rq_req_swab_mask) * 8);
+ LASSERT((req->rq_req_swab_mask & (1 << index)) == 0);
+ req->rq_req_swab_mask |= 1 << index;
+}
-#else
-#define LASSERT_REQSWAB(rq, idx)
-#define LASSERT_REPSWAB(rq, idx)
-#define LASSERT_REQSWABBED(rq, idx)
-#define LASSERT_REPSWABBED(rq, idx)
-#endif
+static inline void lustre_set_rep_swabbed(struct ptlrpc_request *req, int index)
+{
+ LASSERT(index < sizeof(req->rq_rep_swab_mask) * 8);
+ LASSERT((req->rq_rep_swab_mask & (1 << index)) == 0);
+ req->rq_rep_swab_mask |= 1 << index;
+}
static inline const char *
-ptlrpc_rqphase2str(struct ptlrpc_request *req)
+ptlrpc_phase2str(enum rq_phase phase)
{
- switch (req->rq_phase) {
+ switch (phase) {
case RQ_PHASE_NEW:
return "New";
case RQ_PHASE_RPC:
return "Interpret";
case RQ_PHASE_COMPLETE:
return "Complete";
+ case RQ_PHASE_UNREGISTERING:
+ return "Unregistering";
default:
return "?Phase?";
}
}
+static inline const char *
+ptlrpc_rqphase2str(struct ptlrpc_request *req)
+{
+ return ptlrpc_phase2str(req->rq_phase);
+}
+
/* Spare the preprocessor, spoil the bugs. */
#define FLAG(field, str) (field ? str : "")
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")
+ FLAG(req->rq_waiting, "W"), \
+ FLAG(req->rq_wait_ctx, "C"), FLAG(req->rq_hp, "H")
-#define REQ_FLAGS_FMT "%s:%s%s%s%s%s%s%s%s%s"
+#define REQ_FLAGS_FMT "%s:%s%s%s%s%s%s%s%s%s%s%s"
void _debug_req(struct ptlrpc_request *req, __u32 mask,
- struct libcfs_debug_msg_data *data, const char *fmt, ...);
-
-#define debug_req(cdls, level, req, file, func, line, fmt, a...) \
-do { \
- CHECK_STACK(); \
- \
- if (((level) & D_CANTMASK) != 0 || \
- ((libcfs_debug & (level)) != 0 && \
- (libcfs_subsystem_debug & DEBUG_SUBSYSTEM) != 0)) { \
- static struct libcfs_debug_msg_data _req_dbg_data = \
- DEBUG_MSG_DATA_INIT(cdls, DEBUG_SUBSYSTEM, file, func, line); \
- _debug_req((req), (level), &_req_dbg_data, fmt, ##a); \
- } \
+ struct libcfs_debug_msg_data *data, const char *fmt, ...)
+ __attribute__ ((format (printf, 4, 5)));
+
+#define debug_req(cdls, level, req, file, func, line, fmt, a...) \
+do { \
+ CFS_CHECK_STACK(); \
+ \
+ if (((level) & D_CANTMASK) != 0 || \
+ ((libcfs_debug & (level)) != 0 && \
+ (libcfs_subsystem_debug & DEBUG_SUBSYSTEM) != 0)) { \
+ static struct libcfs_debug_msg_data _req_dbg_data = \
+ DEBUG_MSG_DATA_INIT(cdls, DEBUG_SUBSYSTEM, file, func, line); \
+ _debug_req((req), (level), &_req_dbg_data, fmt, ##a); \
+ } \
} while(0)
/* for most callers (level is a constant) this is resolved at compile time */
-#define DEBUG_REQ(level, req, fmt, args...) \
-do { \
- if ((level) & (D_ERROR | D_WARNING)) { \
- static cfs_debug_limit_state_t cdls; \
- debug_req(&cdls, level, req, __FILE__, __func__, __LINE__, \
- "@@@ "fmt, ## args); \
- } else \
- debug_req(NULL, level, req, __FILE__, __func__, __LINE__, \
- "@@@ "fmt, ## args); \
+#define DEBUG_REQ(level, req, fmt, args...) \
+do { \
+ if ((level) & (D_ERROR | D_WARNING)) { \
+ static cfs_debug_limit_state_t cdls; \
+ debug_req(&cdls, level, req, __FILE__, __func__, __LINE__, \
+ "@@@ "fmt" ", ## args); \
+ } else \
+ debug_req(NULL, level, req, __FILE__, __func__, __LINE__, \
+ "@@@ "fmt" ", ## args); \
} 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;
+ cfs_list_t bp_link;
+ int bp_buflen;
+ int bp_pageoffset; /* offset within a page */
+ struct page *bp_page;
};
#define BULK_GET_SOURCE 0
#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 */
+ unsigned long bd_success:1; /* completed successfully */
+ unsigned long bd_network_rw:1; /* accessible to the network */
+ unsigned long bd_type:2; /* {put,get}{source,sink} */
+ unsigned long bd_registered:1; /* client side */
+ cfs_spinlock_t bd_lock; /* serialise with callback */
int bd_import_generation;
struct obd_export *bd_export;
struct obd_import *bd_import;
__u64 bd_last_xid;
struct ptlrpc_cb_id bd_cbid; /* network callback info */
- lnet_handle_md_t bd_md_h; /* associated MD */
+ lnet_handle_md_t bd_md_h; /* associated MD */
+ lnet_nid_t bd_sender; /* stash event::sender */
#if defined(__KERNEL__)
- lnet_kiov_t bd_iov[0];
+ /*
+ * encrypt iov, size is either 0 or bd_iov_count.
+ */
+ lnet_kiov_t *bd_enc_iov;
+
+ lnet_kiov_t bd_iov[0];
#else
- lnet_md_iovec_t bd_iov[0];
+ lnet_md_iovec_t bd_iov[0];
#endif
};
struct ptlrpc_thread {
-
- struct list_head t_link; /* active threads for service, from svc->srv_threads */
-
- void *t_data; /* thread-private data (preallocated memory) */
+ /**
+ * active threads in svc->srv_threads
+ */
+ cfs_list_t t_link;
+ /**
+ * thread-private data (preallocated memory)
+ */
+ void *t_data;
__u32 t_flags;
-
- unsigned int t_id; /* service thread index, from ptlrpc_start_threads */
+ /**
+ * service thread index, from ptlrpc_start_threads
+ */
+ unsigned int t_id;
+ /**
+ * service thread pid
+ */
+ pid_t t_pid;
+ /**
+ * put watchdog in the structure per thread b=14840
+ */
+ struct lc_watchdog *t_watchdog;
+ /**
+ * the svc this thread belonged to b=18582
+ */
+ struct ptlrpc_service *t_svc;
cfs_waitq_t t_ctl_waitq;
+ struct lu_env *t_env;
};
struct ptlrpc_request_buffer_desc {
- struct list_head rqbd_list;
- struct list_head rqbd_reqs;
+ cfs_list_t rqbd_list;
+ cfs_list_t rqbd_reqs;
struct ptlrpc_service *rqbd_service;
lnet_handle_md_t rqbd_md_h;
int rqbd_refcount;
typedef int (*svc_handler_t)(struct ptlrpc_request *req);
typedef void (*svcreq_printfn_t)(void *, struct ptlrpc_request *);
+typedef int (*svc_hpreq_handler_t)(struct ptlrpc_request *);
+
+#define PTLRPC_SVC_HP_RATIO 10
struct ptlrpc_service {
- struct list_head srv_list; /* chain thru all services */
+ cfs_list_t srv_list; /* chain thru all services */
int srv_max_req_size; /* biggest request to receive */
int srv_max_reply_size; /* biggest reply to send */
int srv_buf_size; /* size of individual buffers */
int srv_threads_max; /* thread upper limit */
int srv_threads_started; /* index of last started thread */
int srv_threads_running; /* # running threads */
- int srv_n_difficult_replies; /* # 'difficult' replies */
+ cfs_atomic_t srv_n_difficult_replies; /* # 'difficult' replies */
int srv_n_active_reqs; /* # reqs being served */
+ int srv_n_hpreq; /* # HPreqs being served */
cfs_duration_t srv_rqbd_timeout; /* timeout before re-posting reqs, in tick */
- int srv_watchdog_timeout; /* soft watchdog timeout, in ms */
+ int srv_watchdog_factor; /* soft watchdog timeout multiplier */
unsigned srv_cpu_affinity:1; /* bind threads to CPUs */
+ unsigned srv_at_check:1; /* check early replies */
+ unsigned srv_is_stopping:1; /* under unregister_service */
+ cfs_time_t srv_at_checktime; /* debug */
__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_request_history; /* request history */
- __u64 srv_request_seq; /* next request sequence # */
- __u64 srv_request_max_cull_seq; /* highest seq culled from history */
- svcreq_printfn_t srv_request_history_print_fn; /* service-specific print fn */
-
- struct list_head srv_idle_rqbds; /* request buffers to be reposted */
- struct list_head srv_active_rqbds; /* req buffers receiving */
- struct list_head srv_history_rqbds; /* request buffer history */
- int srv_nrqbd_receiving; /* # posted request buffers */
- int srv_n_history_rqbds; /* # request buffers in history */
- int srv_max_history_rqbds;/* max # request buffers in history */
-
- atomic_t srv_outstanding_replies;
- struct list_head srv_active_replies; /* all the active replies */
- struct list_head srv_reply_queue; /* replies waiting for service */
-
- cfs_waitq_t srv_waitq; /* all threads sleep on this. This
- * wait-queue is signalled when new
- * incoming request arrives and when
- * difficult reply has to be handled. */
+ /* AT stuff */
+ struct adaptive_timeout srv_at_estimate;/* estimated rpc service time */
+ cfs_spinlock_t srv_at_lock;
+ struct ptlrpc_at_array srv_at_array; /* reqs waiting for replies */
+ cfs_timer_t srv_at_timer; /* early reply timer */
+
+ int srv_n_queued_reqs; /* # reqs in either of the queues below */
+ int srv_hpreq_count; /* # hp requests handled */
+ int srv_hpreq_ratio; /* # hp per lp reqs to handle */
+ cfs_list_t srv_req_in_queue; /* incoming reqs */
+ cfs_list_t srv_request_queue; /* reqs waiting for service */
+ cfs_list_t srv_request_hpq; /* high priority queue */
+
+ cfs_list_t srv_request_history; /* request history */
+ __u64 srv_request_seq; /* next request sequence # */
+ __u64 srv_request_max_cull_seq; /* highest seq culled from history */
+ svcreq_printfn_t srv_request_history_print_fn; /* service-specific print fn */
+
+ cfs_list_t srv_idle_rqbds; /* request buffers to be reposted */
+ cfs_list_t srv_active_rqbds; /* req buffers receiving */
+ cfs_list_t srv_history_rqbds; /* request buffer history */
+ int srv_nrqbd_receiving; /* # posted request buffers */
+ int srv_n_history_rqbds; /* # request buffers in history */
+ int srv_max_history_rqbds;/* max # request buffers in history */
+
+ cfs_atomic_t srv_outstanding_replies;
+ cfs_list_t srv_active_replies; /* all the active replies */
+#ifndef __KERNEL__
+ cfs_list_t srv_reply_queue; /* replies waiting for service */
+#endif
+ cfs_waitq_t srv_waitq; /* all threads sleep on this. This
+ * wait-queue is signalled when new
+ * incoming request arrives and when
+ * difficult reply has to be handled. */
- struct list_head srv_threads; /* service thread list */
- svc_handler_t srv_handler;
+ cfs_list_t srv_threads; /* service thread list */
+ svc_handler_t srv_handler;
+ svc_hpreq_handler_t srv_hpreq_handler; /* hp request handler */
- char *srv_name; /* only statically allocated strings here; we don't clean them */
- char *srv_thread_name; /* only statically allocated strings here; we don't clean them */
+ char *srv_name; /* only statically allocated strings here; we don't clean them */
+ char *srv_thread_name; /* only statically allocated strings here; we don't clean them */
- spinlock_t srv_lock;
+ cfs_spinlock_t srv_lock;
- cfs_proc_dir_entry_t *srv_procroot;
- struct lprocfs_stats *srv_stats;
+ cfs_proc_dir_entry_t *srv_procroot;
+ struct lprocfs_stats *srv_stats;
/* List of free reply_states */
- struct list_head srv_free_rs_list;
+ cfs_list_t srv_free_rs_list;
/* waitq to run, when adding stuff to srv_free_rs_list */
- cfs_waitq_t srv_free_rs_waitq;
-
+ cfs_waitq_t srv_free_rs_waitq;
+
+ /*
+ * Tags for lu_context associated with this thread, see struct
+ * lu_context.
+ */
+ __u32 srv_ctx_tags;
/*
* if non-NULL called during thread creation (ptlrpc_start_thread())
* to initialize service specific per-thread state.
//struct ptlrpc_srv_ni srv_interfaces[0];
};
+struct ptlrpcd_ctl {
+ /**
+ * Ptlrpc thread control flags (LIOD_START, LIOD_STOP, LIOD_FORCE)
+ */
+ unsigned long pc_flags;
+ /**
+ * Thread lock protecting structure fields.
+ */
+ cfs_spinlock_t pc_lock;
+ /**
+ * Start completion.
+ */
+ cfs_completion_t pc_starting;
+ /**
+ * Stop completion.
+ */
+ cfs_completion_t pc_finishing;
+ /**
+ * Thread requests set.
+ */
+ struct ptlrpc_request_set *pc_set;
+ /**
+ * Thread name used in cfs_daemonize()
+ */
+ char pc_name[16];
+ /**
+ * Environment for request interpreters to run in.
+ */
+ struct lu_env pc_env;
+#ifndef __KERNEL__
+ /**
+ * Async rpcs flag to make sure that ptlrpcd_check() is called only
+ * once.
+ */
+ int pc_recurred;
+ /**
+ * Currently not used.
+ */
+ void *pc_callback;
+ /**
+ * User-space async rpcs callback.
+ */
+ void *pc_wait_callback;
+ /**
+ * User-space check idle rpcs callback.
+ */
+ void *pc_idle_callback;
+#endif
+};
+
+/* Bits for pc_flags */
+enum ptlrpcd_ctl_flags {
+ /**
+ * Ptlrpc thread start flag.
+ */
+ LIOD_START = 1 << 0,
+ /**
+ * Ptlrpc thread stop flag.
+ */
+ LIOD_STOP = 1 << 1,
+ /**
+ * Ptlrpc thread force flag (only stop force so far).
+ * This will cause aborting any inflight rpcs handled
+ * by thread if LIOD_STOP is specified.
+ */
+ LIOD_FORCE = 1 << 2,
+ /**
+ * This is a recovery ptlrpc thread.
+ */
+ LIOD_RECOVERY = 1 << 3
+};
+
/* ptlrpc/events.c */
extern lnet_handle_eq_t ptlrpc_eq_h;
extern int ptlrpc_uuid_to_peer(struct obd_uuid *uuid,
extern void server_bulk_callback (lnet_event_t *ev);
/* ptlrpc/connection.c */
-void ptlrpc_dump_connections(void);
-void ptlrpc_readdress_connection(struct ptlrpc_connection *, struct obd_uuid *);
-struct ptlrpc_connection *ptlrpc_get_connection(lnet_process_id_t peer,
- lnet_nid_t self, struct obd_uuid *uuid);
-int ptlrpc_put_connection(struct ptlrpc_connection *c);
+struct ptlrpc_connection *ptlrpc_connection_get(lnet_process_id_t peer,
+ lnet_nid_t self,
+ struct obd_uuid *uuid);
+int ptlrpc_connection_put(struct ptlrpc_connection *c);
struct ptlrpc_connection *ptlrpc_connection_addref(struct ptlrpc_connection *);
-void ptlrpc_init_connection(void);
-void ptlrpc_cleanup_connection(void);
+int ptlrpc_connection_init(void);
+void ptlrpc_connection_fini(void);
extern lnet_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);
+int ptlrpc_unregister_bulk(struct ptlrpc_request *req, int async);
-static inline int ptlrpc_bulk_active (struct ptlrpc_bulk_desc *desc)
+static inline int ptlrpc_server_bulk_active(struct ptlrpc_bulk_desc *desc)
{
- int rc;
+ int rc;
+
+ LASSERT(desc != NULL);
- spin_lock(&desc->bd_lock);
+ cfs_spin_lock(&desc->bd_lock);
rc = desc->bd_network_rw;
- spin_unlock(&desc->bd_lock);
- return (rc);
+ cfs_spin_unlock(&desc->bd_lock);
+ return rc;
}
-int ptlrpc_send_reply(struct ptlrpc_request *req, int);
+static inline int ptlrpc_client_bulk_active(struct ptlrpc_request *req)
+{
+ struct ptlrpc_bulk_desc *desc = req->rq_bulk;
+ int rc;
+
+ LASSERT(req != NULL);
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_BULK_UNLINK) &&
+ req->rq_bulk_deadline > cfs_time_current_sec())
+ return 1;
+
+ if (!desc)
+ return 0;
+
+ cfs_spin_lock(&desc->bd_lock);
+ rc = desc->bd_network_rw;
+ cfs_spin_unlock(&desc->bd_lock);
+ return rc;
+}
+
+#define PTLRPC_REPLY_MAYBE_DIFFICULT 0x01
+#define PTLRPC_REPLY_EARLY 0x02
+int ptlrpc_send_reply(struct ptlrpc_request *req, int flags);
int ptlrpc_reply(struct ptlrpc_request *req);
+int ptlrpc_send_error(struct ptlrpc_request *req, int difficult);
int ptlrpc_error(struct ptlrpc_request *req);
void ptlrpc_resend_req(struct ptlrpc_request *request);
+int ptlrpc_at_get_net_latency(struct ptlrpc_request *req);
int ptl_send_rpc(struct ptlrpc_request *request, int noreply);
int ptlrpc_register_rqbd (struct ptlrpc_request_buffer_desc *rqbd);
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)
-{
- int rc;
-
- spin_lock(&req->rq_lock);
- rc = req->rq_receiving_reply;
- spin_unlock(&req->rq_lock);
- return (rc);
-}
-
-static inline int
-ptlrpc_client_replied (struct ptlrpc_request *req)
-{
- int rc;
-
- spin_lock(&req->rq_lock);
- rc = req->rq_replied;
- spin_unlock(&req->rq_lock);
- return (rc);
-}
-
-static inline void
-ptlrpc_wake_client_req (struct ptlrpc_request *req)
-{
- if (req->rq_set == NULL)
- cfs_waitq_signal(&req->rq_reply_waitq);
- else
- cfs_waitq_signal(&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);
+int ptlrpc_unregister_reply(struct ptlrpc_request *req, int async);
void ptlrpc_restart_req(struct ptlrpc_request *req);
void ptlrpc_abort_inflight(struct obd_import *imp);
+void ptlrpc_cleanup_imp(struct obd_import *imp);
+void ptlrpc_abort_set(struct ptlrpc_request_set *set);
struct ptlrpc_request_set *ptlrpc_prep_set(void);
+int ptlrpc_set_add_cb(struct ptlrpc_request_set *set,
+ set_interpreter_func fn, void *data);
int ptlrpc_set_next_timeout(struct ptlrpc_request_set *);
-int ptlrpc_check_set(struct ptlrpc_request_set *set);
+int ptlrpc_check_set(const struct lu_env *env, 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 *);
+int ptlrpc_set_add_new_req(struct ptlrpcd_ctl *pc,
+ struct ptlrpc_request *req);
void ptlrpc_free_rq_pool(struct ptlrpc_request_pool *pool);
void ptlrpc_add_rqs_to_pool(struct ptlrpc_request_pool *pool, int num_rq);
-struct ptlrpc_request_pool *ptlrpc_init_rq_pool(int, int,
- void (*populate_pool)(struct ptlrpc_request_pool *, int));
+
+struct ptlrpc_request_pool *
+ptlrpc_init_rq_pool(int, int,
+ void (*populate_pool)(struct ptlrpc_request_pool *, int));
+
+void ptlrpc_at_set_req_timeout(struct ptlrpc_request *req);
+struct ptlrpc_request *ptlrpc_request_alloc(struct obd_import *imp,
+ const struct req_format *format);
+struct ptlrpc_request *ptlrpc_request_alloc_pool(struct obd_import *imp,
+ struct ptlrpc_request_pool *,
+ const struct req_format *format);
+void ptlrpc_request_free(struct ptlrpc_request *request);
+int ptlrpc_request_pack(struct ptlrpc_request *request,
+ __u32 version, int opcode);
+struct ptlrpc_request *ptlrpc_request_alloc_pack(struct obd_import *imp,
+ const struct req_format *format,
+ __u32 version, int opcode);
+int ptlrpc_request_bufs_pack(struct ptlrpc_request *request,
+ __u32 version, int opcode, char **bufs,
+ struct ptlrpc_cli_ctx *ctx);
+struct ptlrpc_request *ptlrpc_prep_fakereq(struct obd_import *imp,
+ unsigned int timeout,
+ ptlrpc_interpterer_t interpreter);
+void ptlrpc_fakereq_finished(struct ptlrpc_request *req);
+
struct ptlrpc_request *ptlrpc_prep_req(struct obd_import *imp, __u32 version,
- int opcode, int count, int *lengths,
+ int opcode, int count, __u32 *lengths,
char **bufs);
struct ptlrpc_request *ptlrpc_prep_req_pool(struct obd_import *imp,
__u32 version, int opcode,
- int count, int *lengths, char **bufs,
+ int count, __u32 *lengths, char **bufs,
struct ptlrpc_request_pool *pool);
-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);
__u64 ptlrpc_sample_next_xid(void);
__u64 ptlrpc_req_xid(struct ptlrpc_request *request);
+struct ptlrpc_service_conf {
+ int psc_nbufs;
+ int psc_bufsize;
+ int psc_max_req_size;
+ int psc_max_reply_size;
+ int psc_req_portal;
+ int psc_rep_portal;
+ int psc_watchdog_factor;
+ int psc_min_threads;
+ int psc_max_threads;
+ __u32 psc_ctx_tags;
+};
+
/* ptlrpc/service.c */
void ptlrpc_save_lock (struct ptlrpc_request *req,
- struct lustre_handle *lock, int mode);
-void ptlrpc_commit_replies (struct obd_device *obd);
+ struct lustre_handle *lock, int mode, int no_ack);
+void ptlrpc_commit_replies(struct obd_export *exp);
+void ptlrpc_dispatch_difficult_reply (struct ptlrpc_reply_state *rs);
void ptlrpc_schedule_difficult_reply (struct ptlrpc_reply_state *rs);
+struct ptlrpc_service *ptlrpc_init_svc_conf(struct ptlrpc_service_conf *c,
+ svc_handler_t h, char *name,
+ struct proc_dir_entry *proc_entry,
+ svcreq_printfn_t prntfn,
+ char *threadname);
+
struct ptlrpc_service *ptlrpc_init_svc(int nbufs, int bufsize, int max_req_size,
int max_reply_size,
int req_portal, int rep_portal,
- int watchdog_timeout, /* in ms */
+ int watchdog_factor,
svc_handler_t, char *name,
cfs_proc_dir_entry_t *proc_entry,
- svcreq_printfn_t,
+ svcreq_printfn_t,
int min_threads, int max_threads,
- char *threadname);
+ char *threadname, __u32 ctx_tags,
+ svc_hpreq_handler_t);
void ptlrpc_stop_all_threads(struct ptlrpc_service *svc);
int ptlrpc_start_threads(struct obd_device *dev, struct ptlrpc_service *svc);
int liblustre_check_services (void *arg);
void ptlrpc_daemonize(char *name);
int ptlrpc_service_health_check(struct ptlrpc_service *);
+void ptlrpc_hpreq_reorder(struct ptlrpc_request *req);
+void ptlrpc_server_active_request_inc(struct ptlrpc_request *req);
+void ptlrpc_server_active_request_dec(struct ptlrpc_request *req);
+void ptlrpc_server_drop_request(struct ptlrpc_request *req);
+#ifdef __KERNEL__
+int ptlrpc_hr_init(void);
+void ptlrpc_hr_fini(void);
+#else
+# define ptlrpc_hr_init() (0)
+# define ptlrpc_hr_fini() do {} while(0)
+#endif
struct ptlrpc_svc_data {
char *name;
int ptlrpc_import_recovery_state_machine(struct obd_import *imp);
/* ptlrpc/pack_generic.c */
-int lustre_msg_swabbed(struct lustre_msg *msg);
+int ptlrpc_reconnect_import(struct obd_import *imp);
+
+/** ptlrpc mgs buffer swab interface */
+int ptlrpc_buf_need_swab(struct ptlrpc_request *req, const int inout,
+ int index);
+void ptlrpc_buf_set_swabbed(struct ptlrpc_request *req, const int inout,
+ int index);
+int ptlrpc_unpack_rep_msg(struct ptlrpc_request *req, int len);
+int ptlrpc_unpack_req_msg(struct ptlrpc_request *req, int len);
+
int lustre_msg_check_version(struct lustre_msg *msg, __u32 version);
+void lustre_init_msg_v2(struct lustre_msg_v2 *msg, int count, __u32 *lens,
+ char **bufs);
int lustre_pack_request(struct ptlrpc_request *, __u32 magic, int count,
- int *lens, char **bufs);
-int lustre_pack_reply(struct ptlrpc_request *, int count, int *lens,
+ __u32 *lens, char **bufs);
+int lustre_pack_reply(struct ptlrpc_request *, int count, __u32 *lens,
char **bufs);
-void lustre_shrink_reply(struct ptlrpc_request *req, int segment,
- unsigned int newlen, int move_data);
+int lustre_pack_reply_v2(struct ptlrpc_request *req, int count,
+ __u32 *lens, char **bufs, int flags);
+#define LPRFL_EARLY_REPLY 1
+int lustre_pack_reply_flags(struct ptlrpc_request *, int count, __u32 *lens,
+ char **bufs, int flags);
+int lustre_shrink_msg(struct lustre_msg *msg, int segment,
+ unsigned int newlen, int move_data);
void lustre_free_reply_state(struct ptlrpc_reply_state *rs);
-int lustre_msg_size(__u32 magic, int count, int *lengths);
-int lustre_unpack_msg(struct lustre_msg *m, int len);
+int __lustre_unpack_msg(struct lustre_msg *m, int len);
+int lustre_msg_hdr_size(__u32 magic, int count);
+int lustre_msg_size(__u32 magic, int count, __u32 *lengths);
+int lustre_msg_size_v2(int count, __u32 *lengths);
+int lustre_packed_msg_size(struct lustre_msg *msg);
+int lustre_msg_early_size(void);
+void *lustre_msg_buf_v2(struct lustre_msg_v2 *m, int n, int min_size);
void *lustre_msg_buf(struct lustre_msg *m, int n, int minlen);
int lustre_msg_buflen(struct lustre_msg *m, int n);
void lustre_msg_set_buflen(struct lustre_msg *m, int n, int len);
int lustre_msg_bufcount(struct lustre_msg *m);
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);
+__u32 lustre_msghdr_get_flags(struct lustre_msg *msg);
+void lustre_msghdr_set_flags(struct lustre_msg *msg, __u32 flags);
__u32 lustre_msg_get_flags(struct lustre_msg *msg);
void lustre_msg_add_flags(struct lustre_msg *msg, int flags);
void lustre_msg_set_flags(struct lustre_msg *msg, int flags);
__u32 lustre_msg_get_opc(struct lustre_msg *msg);
__u64 lustre_msg_get_last_xid(struct lustre_msg *msg);
__u64 lustre_msg_get_last_committed(struct lustre_msg *msg);
+__u64 *lustre_msg_get_versions(struct lustre_msg *msg);
__u64 lustre_msg_get_transno(struct lustre_msg *msg);
-int lustre_msg_get_status(struct lustre_msg *msg);
+__u64 lustre_msg_get_slv(struct lustre_msg *msg);
+__u32 lustre_msg_get_limit(struct lustre_msg *msg);
+void lustre_msg_set_slv(struct lustre_msg *msg, __u64 slv);
+void lustre_msg_set_limit(struct lustre_msg *msg, __u64 limit);
+int lustre_msg_get_status(struct lustre_msg *msg);
__u32 lustre_msg_get_conn_cnt(struct lustre_msg *msg);
+int lustre_msg_is_v1(struct lustre_msg *msg);
__u32 lustre_msg_get_magic(struct lustre_msg *msg);
+__u32 lustre_msg_get_timeout(struct lustre_msg *msg);
+__u32 lustre_msg_get_service_time(struct lustre_msg *msg);
+__u32 lustre_msg_get_cksum(struct lustre_msg *msg);
+__u32 lustre_msg_calc_cksum(struct lustre_msg *msg);
void lustre_msg_set_handle(struct lustre_msg *msg,struct lustre_handle *handle);
void lustre_msg_set_type(struct lustre_msg *msg, __u32 type);
void lustre_msg_set_opc(struct lustre_msg *msg, __u32 opc);
void lustre_msg_set_last_xid(struct lustre_msg *msg, __u64 last_xid);
void lustre_msg_set_last_committed(struct lustre_msg *msg,__u64 last_committed);
+void lustre_msg_set_versions(struct lustre_msg *msg, __u64 *versions);
void lustre_msg_set_transno(struct lustre_msg *msg, __u64 transno);
void lustre_msg_set_status(struct lustre_msg *msg, __u32 status);
void lustre_msg_set_conn_cnt(struct lustre_msg *msg, __u32 conn_cnt);
+void ptlrpc_req_set_repsize(struct ptlrpc_request *req, int count, __u32 *sizes);
+void ptlrpc_request_set_replen(struct ptlrpc_request *req);
+void lustre_msg_set_timeout(struct lustre_msg *msg, __u32 timeout);
+void lustre_msg_set_service_time(struct lustre_msg *msg, __u32 service_time);
+void lustre_msg_set_cksum(struct lustre_msg *msg, __u32 cksum);
+
+static inline void
+lustre_shrink_reply(struct ptlrpc_request *req, int segment,
+ unsigned int newlen, int move_data)
+{
+ LASSERT(req->rq_reply_state);
+ LASSERT(req->rq_repmsg);
+ req->rq_replen = lustre_shrink_msg(req->rq_repmsg, segment,
+ newlen, move_data);
+}
+
+static inline void
+ptlrpc_rqphase_move(struct ptlrpc_request *req, enum rq_phase new_phase)
+{
+ if (req->rq_phase == new_phase)
+ return;
+
+ if (new_phase == RQ_PHASE_UNREGISTERING) {
+ req->rq_next_phase = req->rq_phase;
+ if (req->rq_import)
+ cfs_atomic_inc(&req->rq_import->imp_unregistering);
+ }
+
+ if (req->rq_phase == RQ_PHASE_UNREGISTERING) {
+ if (req->rq_import)
+ cfs_atomic_dec(&req->rq_import->imp_unregistering);
+ }
+
+ DEBUG_REQ(D_INFO, req, "move req \"%s\" -> \"%s\"",
+ ptlrpc_rqphase2str(req), ptlrpc_phase2str(new_phase));
+
+ req->rq_phase = new_phase;
+}
+
+static inline int
+ptlrpc_client_early(struct ptlrpc_request *req)
+{
+ if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_REPL_UNLINK) &&
+ req->rq_reply_deadline > cfs_time_current_sec())
+ return 0;
+ return req->rq_early;
+}
+
+static inline int
+ptlrpc_client_replied(struct ptlrpc_request *req)
+{
+ if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_REPL_UNLINK) &&
+ req->rq_reply_deadline > cfs_time_current_sec())
+ return 0;
+ return req->rq_replied;
+}
+
+static inline int
+ptlrpc_client_recv(struct ptlrpc_request *req)
+{
+ if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_REPL_UNLINK) &&
+ req->rq_reply_deadline > cfs_time_current_sec())
+ return 1;
+ return req->rq_receiving_reply;
+}
+
+static inline int
+ptlrpc_client_recv_or_unlink(struct ptlrpc_request *req)
+{
+ int rc;
+
+ cfs_spin_lock(&req->rq_lock);
+ if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_REPL_UNLINK) &&
+ req->rq_reply_deadline > cfs_time_current_sec()) {
+ cfs_spin_unlock(&req->rq_lock);
+ return 1;
+ }
+ rc = req->rq_receiving_reply || req->rq_must_unlink;
+ cfs_spin_unlock(&req->rq_lock);
+ return rc;
+}
+
+static inline void
+ptlrpc_client_wake_req(struct ptlrpc_request *req)
+{
+ if (req->rq_set == NULL)
+ cfs_waitq_signal(&req->rq_reply_waitq);
+ else
+ cfs_waitq_signal(&req->rq_set->set_waitq);
+}
static inline void
ptlrpc_rs_addref(struct ptlrpc_reply_state *rs)
{
- LASSERT(atomic_read(&rs->rs_refcount) > 0);
- atomic_inc(&rs->rs_refcount);
+ LASSERT(cfs_atomic_read(&rs->rs_refcount) > 0);
+ cfs_atomic_inc(&rs->rs_refcount);
}
static inline void
ptlrpc_rs_decref(struct ptlrpc_reply_state *rs)
{
- LASSERT(atomic_read(&rs->rs_refcount) > 0);
- if (atomic_dec_and_test(&rs->rs_refcount))
+ LASSERT(cfs_atomic_read(&rs->rs_refcount) > 0);
+ if (cfs_atomic_dec_and_test(&rs->rs_refcount))
lustre_free_reply_state(rs);
}
+/* Should only be called once per req */
+static inline void ptlrpc_req_drop_rs(struct ptlrpc_request *req)
+{
+ if (req->rq_reply_state == NULL)
+ return; /* shouldn't occur */
+ ptlrpc_rs_decref(req->rq_reply_state);
+ req->rq_reply_state = NULL;
+ req->rq_repmsg = NULL;
+}
+
static inline __u32 lustre_request_magic(struct ptlrpc_request *req)
{
return lustre_msg_get_magic(req->rq_reqmsg);
static inline int ptlrpc_req_get_repsize(struct ptlrpc_request *req)
{
switch (req->rq_reqmsg->lm_magic) {
- case LUSTRE_MSG_MAGIC_V1:
- CERROR("function not supported for lustre_msg V1!\n");
- return -ENOTSUPP;
case LUSTRE_MSG_MAGIC_V2:
return req->rq_reqmsg->lm_repsize;
default:
}
}
-static inline void
-ptlrpc_req_set_repsize(struct ptlrpc_request *req, int count, int *lens)
-{
- req->rq_replen = lustre_msg_size(req->rq_reqmsg->lm_magic, count, lens);
- if (req->rq_reqmsg->lm_magic == LUSTRE_MSG_MAGIC_V2)
- req->rq_reqmsg->lm_repsize = req->rq_replen;
-}
-
/* 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 client_connect_import(struct lustre_handle *conn, struct obd_device *obd,
- struct obd_uuid *cluuid, struct obd_connect_data *);
+int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg);
+int client_obd_cleanup(struct obd_device *obddev);
+int client_connect_import(const struct lu_env *env,
+ struct obd_export **exp, struct obd_device *obd,
+ struct obd_uuid *cluuid, struct obd_connect_data *,
+ void *localdata);
int client_disconnect_export(struct obd_export *exp);
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);
+void client_destroy_import(struct obd_import *imp);
+
+int server_disconnect_export(struct obd_export *exp);
/* ptlrpc/pinger.c */
+enum timeout_event {
+ TIMEOUT_GRANT = 1
+};
+struct timeout_item;
+typedef int (*timeout_cb_t)(struct timeout_item *, void *);
int ptlrpc_pinger_add_import(struct obd_import *imp);
int ptlrpc_pinger_del_import(struct obd_import *imp);
+int ptlrpc_add_timeout_client(int time, enum timeout_event event,
+ timeout_cb_t cb, void *data,
+ cfs_list_t *obd_list);
+int ptlrpc_del_timeout_client(cfs_list_t *obd_list,
+ enum timeout_event event);
+struct ptlrpc_request * ptlrpc_prep_ping(struct obd_import *imp);
+int ptlrpc_obd_ping(struct obd_device *obd);
+cfs_time_t ptlrpc_suspend_wakeup_time(void);
#ifdef __KERNEL__
void ping_evictor_start(void);
void ping_evictor_stop(void);
#define ping_evictor_start() do {} while (0)
#define ping_evictor_stop() do {} while (0)
#endif
+int ptlrpc_check_and_wait_suspend(struct ptlrpc_request *req);
/* ptlrpc/ptlrpcd.c */
+
+/**
+ * Ptlrpcd scope is a set of two threads: ptlrpcd-foo and ptlrpcd-foo-rcv,
+ * these threads are used to asynchronously send requests queued with
+ * ptlrpcd_add_req(req, PCSOPE_FOO), and to handle completion call-backs for
+ * such requests. Multiple scopes are needed to avoid dead-locks.
+ */
+enum ptlrpcd_scope {
+ /** Scope of bulk read-write rpcs. */
+ PSCOPE_BRW,
+ /** Everything else. */
+ PSCOPE_OTHER,
+ PSCOPE_NR
+};
+
+int ptlrpcd_start(const char *name, struct ptlrpcd_ctl *pc);
+void ptlrpcd_stop(struct ptlrpcd_ctl *pc, int force);
void ptlrpcd_wake(struct ptlrpc_request *req);
-void ptlrpcd_add_req(struct ptlrpc_request *req);
+int ptlrpcd_add_req(struct ptlrpc_request *req, enum ptlrpcd_scope scope);
+void ptlrpcd_add_rqset(struct ptlrpc_request_set *set);
int ptlrpcd_addref(void);
void ptlrpcd_decref(void);
/* ptlrpc/lproc_ptlrpc.c */
+const char* ll_opcode2str(__u32 opcode);
#ifdef LPROCFS
void ptlrpc_lprocfs_register_obd(struct obd_device *obd);
void ptlrpc_lprocfs_unregister_obd(struct obd_device *obd);
-void ptlrpc_lprocfs_brw(struct ptlrpc_request *req, int opc, int bytes);
+void ptlrpc_lprocfs_brw(struct ptlrpc_request *req, int bytes);
#else
static inline void ptlrpc_lprocfs_register_obd(struct obd_device *obd) {}
static inline void ptlrpc_lprocfs_unregister_obd(struct obd_device *obd) {}
-static inline void ptlrpc_lprocfs_brw(struct ptlrpc_request *req, int opc,
- int bytes) {}
+static inline void ptlrpc_lprocfs_brw(struct ptlrpc_request *req, int bytes) {}
#endif
/* ptlrpc/llog_server.c */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff