Branch HEAD

[fs/lustre-release.git] / lustre / include / lustre_net.h

diff --git a/lustre/include/lustre_net.h b/lustre/include/lustre_net.h
index 2a2d129..363a0b8 100644 (file)
--- a/lustre/include/lustre_net.h
+++ b/lustre/include/lustre_net.h
@@ -184,7 +184,6 @@
 #define ptlrpc_req_async_args(req) ((void *)&req->rq_async_args)
 
 struct ptlrpc_connection {
-        struct list_head        c_link;
         struct hlist_node       c_hash;
         lnet_nid_t              c_self;
         lnet_process_id_t       c_peer;
@@ -193,9 +192,9 @@ struct ptlrpc_connection {
 };
 
 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 */
@@ -248,7 +247,7 @@ struct ptlrpc_cb_id {
         void    *cbid_arg;                      /* additional arg */
 };
 
-#define RS_MAX_LOCKS 4
+#define RS_MAX_LOCKS 8
 #define RS_DEBUG     1
 
 struct ptlrpc_reply_state {
@@ -261,6 +260,8 @@ struct ptlrpc_reply_state {
 #endif
         /* updates to following flag serialised by srv_request_lock */
         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? */
@@ -297,6 +298,11 @@ enum rq_phase {
         RQ_PHASE_COMPLETE    = 0xebc0de04,
 };
 
+/** 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 */
@@ -307,6 +313,9 @@ struct ptlrpc_request_pool {
 struct lu_context;
 struct lu_env;
 
+/**
+ * Represents remote procedure call.
+ */
 struct ptlrpc_request {
         int rq_type; /* one of PTL_RPC_MSG_* */
         struct list_head rq_list;
@@ -450,7 +459,8 @@ struct ptlrpc_request {
         /* Multi-rpc bits */
         struct list_head 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 */
         struct ptlrpc_request_pool *rq_pool;    /* Pool if request from
                                                    preallocated list */
@@ -643,6 +653,7 @@ struct ptlrpc_service {
         int              srv_watchdog_factor;   /* soft watchdog timeout mutiplier */
         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;
@@ -739,6 +750,10 @@ struct ptlrpcd_ctl {
          * 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
@@ -789,14 +804,13 @@ extern void reply_out_callback(lnet_event_t *ev);
 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 *);
-int 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 */
@@ -863,7 +877,7 @@ 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);
@@ -902,7 +916,6 @@ struct ptlrpc_request *ptlrpc_prep_req_pool(struct obd_import *imp,
                                              __u32 version, int opcode,
                                             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);
@@ -934,7 +947,7 @@ struct ptlrpc_service_conf {
 
 /* ptlrpc/service.c */
 void ptlrpc_save_lock (struct ptlrpc_request *req,
-                       struct lustre_handle *lock, int mode);
+                       struct lustre_handle *lock, int mode, int no_ack);
 void ptlrpc_commit_replies (struct obd_device *obd);
 void ptlrpc_schedule_difficult_reply (struct ptlrpc_reply_state *rs);
 struct ptlrpc_service *ptlrpc_init_svc_conf(struct ptlrpc_service_conf *c,