X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lnet%2Finclude%2Flnet%2Flib-types.h;h=22336387a0d2d2045580104c6484caeb9ea5dcaa;hb=00243fccc1977e4dee8041f4c0f9854373598dc2;hp=946f669dd5ee15d015db772e86fadf43ed9bc8d8;hpb=d016a086b68ca4af2dcbfefc3917b9291efd8d62;p=fs%2Flustre-release.git diff --git a/lnet/include/lnet/lib-types.h b/lnet/include/lnet/lib-types.h index 946f669..2233638 100644 --- a/lnet/include/lnet/lib-types.h +++ b/lnet/include/lnet/lib-types.h @@ -1,6 +1,4 @@ -/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- - * vim:expandtab:shiftwidth=8:tabstop=8: - * +/* * GPL HEADER START * * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. @@ -28,6 +26,8 @@ /* * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. + * + * Copyright (c) 2012, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -48,6 +48,8 @@ #include #elif defined(__WINNT__) #include +#include +#include #else #error Unsupported Operating System #endif @@ -59,7 +61,6 @@ #define WIRE_ATTR __attribute__((packed)) /* Packed version of lnet_process_id_t to transfer via network */ -#include typedef struct { lnet_nid_t nid; lnet_pid_t pid; /* node id / process id */ @@ -73,7 +74,6 @@ typedef struct { __u64 wh_interface_cookie; __u64 wh_object_cookie; } WIRE_ATTR lnet_handle_wire_t; -#include typedef enum { LNET_MSG_ACK = 0, @@ -87,7 +87,6 @@ typedef enum { * byte boundary in the message header. Note that all types used in these * wire structs MUST be fixed size and the smaller types are placed at the * end. */ -#include typedef struct lnet_ack { lnet_handle_wire_t dst_wmd; __u64 match_bits; @@ -177,7 +176,6 @@ typedef struct { __u32 acr_version; /* protocol version */ __u64 acr_nid; /* target NID */ } WIRE_ATTR lnet_acceptor_connreq_t; -#include #define LNET_PROTO_ACCEPTOR_VERSION 1 @@ -189,7 +187,24 @@ typedef struct lnet_msg { cfs_list_t msg_list; /* Q for credits/MD */ lnet_process_id_t msg_target; - __u32 msg_type; + /* where is it from, it's only for building event */ + lnet_nid_t msg_from; + __u32 msg_type; + + /* commited for sending */ + unsigned int msg_tx_committed:1; + /* CPT # this message committed for sending */ + unsigned int msg_tx_cpt:15; + /* commited for receiving */ + unsigned int msg_rx_committed:1; + /* CPT # this message committed for receiving */ + unsigned int msg_rx_cpt:15; + /* queued for tx credit */ + unsigned int msg_tx_delayed:1; + /* queued for RX buffer */ + unsigned int msg_rx_delayed:1; + /* ready for pending on RX delay list */ + unsigned int msg_rx_ready_delay:1; unsigned int msg_vmflush:1; /* VM trying to free memory */ unsigned int msg_target_is_router:1; /* sending to a router */ @@ -197,7 +212,6 @@ typedef struct lnet_msg { unsigned int msg_ack:1; /* ack on finalize (PUT) */ unsigned int msg_sending:1; /* outgoing message */ unsigned int msg_receiving:1; /* being received */ - unsigned int msg_delayed:1; /* had to Q for buffer or tx credit */ unsigned int msg_txcredit:1; /* taken an NI send credit */ unsigned int msg_peertxcredit:1; /* taken a peer send credit */ unsigned int msg_rtrcredit:1; /* taken a globel router credit */ @@ -231,14 +245,14 @@ typedef struct lnet_libhandle { ((type *)((char *)(ptr)-(char *)(&((type *)0)->member))) typedef struct lnet_eq { - cfs_list_t eq_list; - lnet_libhandle_t eq_lh; - lnet_seq_t eq_enq_seq; - lnet_seq_t eq_deq_seq; - unsigned int eq_size; - lnet_event_t *eq_events; - int eq_refcount; - lnet_eq_handler_t eq_callback; + cfs_list_t eq_list; + lnet_libhandle_t eq_lh; + lnet_seq_t eq_enq_seq; + lnet_seq_t eq_deq_seq; + unsigned int eq_size; + lnet_eq_handler_t eq_callback; + lnet_event_t *eq_events; + int **eq_refs; /* percpt refcount for EQ */ } lnet_eq_t; typedef struct lnet_me { @@ -246,6 +260,7 @@ typedef struct lnet_me { lnet_libhandle_t me_lh; lnet_process_id_t me_match_id; unsigned int me_portal; + unsigned int me_pos; /* hash offset in mt_hash */ __u64 me_match_bits; __u64 me_ignore_bits; lnet_unlink_t me_unlink; @@ -303,9 +318,7 @@ typedef struct { #define LNET_COOKIE_TYPE_ME 2 #define LNET_COOKIE_TYPE_EQ 3 #define LNET_COOKIE_TYPE_BITS 2 -#define LNET_COOKIE_TYPES (1 << LNET_COOKIE_TYPE_BITS) -/* LNET_COOKIE_TYPES must be a power of 2, so the cookie type can be - * extracted by masking with (LNET_COOKIE_TYPES - 1) */ +#define LNET_COOKIE_MASK ((1ULL << LNET_COOKIE_TYPE_BITS) - 1ULL) struct lnet_ni; /* forward ref */ @@ -388,44 +401,75 @@ typedef struct { __u32 ns_unused; } WIRE_ATTR lnet_ni_status_t; +struct lnet_tx_queue { + int tq_credits; /* # tx credits free */ + int tq_credits_min; /* lowest it's been */ + int tq_credits_max; /* total # tx credits */ + cfs_list_t tq_delayed; /* delayed TXs */ +}; + #define LNET_MAX_INTERFACES 16 typedef struct lnet_ni { - cfs_list_t ni_list; /* chain on ln_nis */ - cfs_list_t ni_txq; /* messages waiting for tx credits */ - int ni_maxtxcredits; /* # tx credits */ - int ni_txcredits; /* # tx credits free */ - int ni_mintxcredits; /* lowest it's been */ - int ni_peertxcredits; /* # per-peer send credits */ - int ni_peerrtrcredits; /* # per-peer router buffer credits */ - int ni_peertimeout; /* seconds to consider peer dead */ - lnet_nid_t ni_nid; /* interface's NID */ - void *ni_data; /* instance-specific data */ - lnd_t *ni_lnd; /* procedural interface */ - int ni_refcount; /* reference count */ - cfs_time_t ni_last_alive; /* when I was last alive */ - lnet_ni_status_t *ni_status; /* my health status */ - char *ni_interfaces[LNET_MAX_INTERFACES]; /* equivalent interfaces to use */ +#ifdef __KERNEL__ + spinlock_t ni_lock; +#else +# ifndef HAVE_LIBPTHREAD + int ni_lock; +# else + pthread_mutex_t ni_lock; +# endif +#endif + cfs_list_t ni_list; /* chain on ln_nis */ + cfs_list_t ni_cptlist; /* chain on ln_nis_cpt */ + int ni_maxtxcredits; /* # tx credits */ + /* # per-peer send credits */ + int ni_peertxcredits; + /* # per-peer router buffer credits */ + int ni_peerrtrcredits; + /* seconds to consider peer dead */ + int ni_peertimeout; + int ni_ncpts; /* number of CPTs */ + __u32 *ni_cpts; /* bond NI on some CPTs */ + lnet_nid_t ni_nid; /* interface's NID */ + void *ni_data; /* instance-specific data */ + lnd_t *ni_lnd; /* procedural interface */ + struct lnet_tx_queue **ni_tx_queues; /* percpt TX queues */ + int **ni_refs; /* percpt reference count */ + long ni_last_alive; /* when I was last alive */ + lnet_ni_status_t *ni_status; /* my health status */ + /* equivalent interfaces to use */ + char *ni_interfaces[LNET_MAX_INTERFACES]; } lnet_ni_t; -#define LNET_PROTO_PING_MATCHBITS 0x8000000000000000LL -#define LNET_PROTO_PING_VERSION 2 -#define LNET_PROTO_PING_VERSION1 1 +#define LNET_PROTO_PING_MATCHBITS 0x8000000000000000LL + +/* NB: value of these features equal to LNET_PROTO_PING_VERSION_x + * of old LNet, so there shouldn't be any compatibility issue */ +#define LNET_PING_FEAT_INVAL (0) /* no feature */ +#define LNET_PING_FEAT_BASE (1 << 0) /* just a ping */ +#define LNET_PING_FEAT_NI_STATUS (1 << 1) /* return NI status */ + +#define LNET_PING_FEAT_MASK (LNET_PING_FEAT_BASE | \ + LNET_PING_FEAT_NI_STATUS) + typedef struct { - __u32 pi_magic; - __u32 pi_version; - lnet_pid_t pi_pid; - __u32 pi_nnis; - lnet_ni_status_t pi_ni[0]; + __u32 pi_magic; + __u32 pi_features; + lnet_pid_t pi_pid; + __u32 pi_nnis; + lnet_ni_status_t pi_ni[0]; } WIRE_ATTR lnet_ping_info_t; /* router checker data, per router */ #define LNET_MAX_RTR_NIS 16 #define LNET_PINGINFO_SIZE offsetof(lnet_ping_info_t, pi_ni[LNET_MAX_RTR_NIS]) typedef struct { - cfs_list_t rcd_list; /* chain on the_lnet.ln_zombie_rcd */ - lnet_handle_md_t rcd_mdh; /* ping buffer MD */ - lnet_ping_info_t *rcd_pinginfo; /* ping buffer */ + /* chain on the_lnet.ln_zombie_rcd or ln_deathrow_rcd */ + cfs_list_t rcd_list; + lnet_handle_md_t rcd_mdh; /* ping buffer MD */ + struct lnet_peer *rcd_gateway; /* reference to gateway */ + lnet_ping_info_t *rcd_pinginfo; /* ping buffer */ } lnet_rc_data_t; typedef struct lnet_peer { @@ -452,20 +496,49 @@ typedef struct lnet_peer { lnet_ni_t *lp_ni; /* interface peer is on */ lnet_nid_t lp_nid; /* peer's NID */ int lp_refcount; /* # refs */ - int lp_rtr_refcount; /* # refs from lnet_route_t::lr_gateway */ - lnet_rc_data_t *lp_rcd; /* router checker state */ + int lp_cpt; /* CPT this peer attached on */ + /* # refs from lnet_route_t::lr_gateway */ + int lp_rtr_refcount; + /* returned RC ping features */ + unsigned int lp_ping_feats; + cfs_list_t lp_routes; /* routers on this peer */ + lnet_rc_data_t *lp_rcd; /* router checker state */ } lnet_peer_t; -#define lnet_peer_aliveness_enabled(lp) ((lp)->lp_ni->ni_peertimeout > 0) + +/* peer hash size */ +#define LNET_PEER_HASH_BITS 9 +#define LNET_PEER_HASH_SIZE (1 << LNET_PEER_HASH_BITS) + +/* peer hash table */ +struct lnet_peer_table { + int pt_version; /* /proc validity stamp */ + int pt_number; /* # peers extant */ + cfs_list_t pt_deathrow; /* zombie peers */ + cfs_list_t *pt_hash; /* NID->peer hash */ +}; + +/* peer aliveness is enabled only on routers for peers in a network where the + * lnet_ni_t::ni_peertimeout has been set to a positive value */ +#define lnet_peer_aliveness_enabled(lp) (the_lnet.ln_routing != 0 && \ + (lp)->lp_ni->ni_peertimeout > 0) typedef struct { - cfs_list_t lr_list; /* chain on net */ - lnet_peer_t *lr_gateway; /* router node */ - unsigned int lr_hops; /* how far I am */ + cfs_list_t lr_list; /* chain on net */ + cfs_list_t lr_gwlist; /* chain on gateway */ + lnet_peer_t *lr_gateway; /* router node */ + __u32 lr_net; /* remote network number */ + int lr_seq; /* sequence for round-robin */ + unsigned int lr_downis; /* number of down NIs */ + unsigned int lr_hops; /* how far I am */ } lnet_route_t; +#define LNET_REMOTE_NETS_HASH_DEFAULT (1U << 7) +#define LNET_REMOTE_NETS_HASH_MAX (1U << 16) +#define LNET_REMOTE_NETS_HASH_SIZE (1 << the_lnet.ln_remote_nets_hbits) + typedef struct { - cfs_list_t lrn_list; /* chain on ln_remote_nets */ + cfs_list_t lrn_list; /* chain on ln_remote_nets_hash */ cfs_list_t lrn_routes; /* routes to me */ __u32 lrn_net; /* my net number */ } lnet_remotenet_t; @@ -485,7 +558,6 @@ typedef struct { lnet_kiov_t rb_kiov[0]; /* the buffer space */ } lnet_rtrbuf_t; -#include typedef struct { __u32 msgs_alloc; __u32 msgs_max; @@ -499,141 +571,255 @@ typedef struct { __u64 route_length; __u64 drop_length; } WIRE_ATTR lnet_counters_t; -#include #define LNET_PEER_HASHSIZE 503 /* prime! */ #define LNET_NRBPOOLS 3 /* # different router buffer pools */ +enum { + /* Didn't match anything */ + LNET_MATCHMD_NONE = (1 << 0), + /* Matched OK */ + LNET_MATCHMD_OK = (1 << 1), + /* Must be discarded */ + LNET_MATCHMD_DROP = (1 << 2), + /* match and buffer is exhausted */ + LNET_MATCHMD_EXHAUSTED = (1 << 3), + /* match or drop */ + LNET_MATCHMD_FINISH = (LNET_MATCHMD_OK | LNET_MATCHMD_DROP), +}; + /* Options for lnet_portal_t::ptl_options */ #define LNET_PTL_LAZY (1 << 0) #define LNET_PTL_MATCH_UNIQUE (1 << 1) /* unique match, for RDMA */ #define LNET_PTL_MATCH_WILDCARD (1 << 2) /* wildcard match, request portal */ -/* ME hash of RDMA portal */ -#define LNET_PORTAL_HASH_BITS 8 -#define LNET_PORTAL_HASH_SIZE (1 << LNET_PORTAL_HASH_BITS) - -typedef struct { - cfs_list_t *ptl_mhash; /* match hash */ - cfs_list_t ptl_mlist; /* match list */ - cfs_list_t ptl_msgq; /* messages blocking for MD */ - __u64 ptl_ml_version; /* validity stamp, only changed for new attached MD */ - __u64 ptl_msgq_version; /* validity stamp */ - unsigned int ptl_options; -} lnet_portal_t; - -/* Router Checker states */ -#define LNET_RC_STATE_SHUTDOWN 0 /* not started */ -#define LNET_RC_STATE_RUNNING 1 /* started up OK */ -#define LNET_RC_STATE_STOPTHREAD 2 /* telling thread to stop */ -#define LNET_RC_STATE_UNLINKING 3 /* unlinking RC MD */ -#define LNET_RC_STATE_UNLINKED 4 /* RC's MD has been unlinked */ - -typedef struct -{ - /* Stuff initialised at LNetInit() */ - int ln_init; /* LNetInit() called? */ - int ln_refcount; /* LNetNIInit/LNetNIFini counter */ - int ln_niinit_self; /* Have I called LNetNIInit myself? */ - - cfs_list_t ln_lnds; /* registered LNDs */ +/* parameter for matching operations (GET, PUT) */ +struct lnet_match_info { + __u64 mi_mbits; + lnet_process_id_t mi_id; + unsigned int mi_opc; + unsigned int mi_portal; + unsigned int mi_rlength; + unsigned int mi_roffset; +}; +/* ME hash of RDMA portal */ +#define LNET_MT_HASH_BITS 8 +#define LNET_MT_HASH_SIZE (1 << LNET_MT_HASH_BITS) +#define LNET_MT_HASH_MASK (LNET_MT_HASH_SIZE - 1) +/* we allocate (LNET_MT_HASH_SIZE + 1) entries for lnet_match_table::mt_hash, + * the last entry is reserved for MEs with ignore-bits */ +#define LNET_MT_HASH_IGNORE LNET_MT_HASH_SIZE +/* __u64 has 2^6 bits, so need 2^(LNET_MT_HASH_BITS - LNET_MT_BITS_U64) which + * is 4 __u64s as bit-map, and add an extra __u64 (only use one bit) for the + * ME-list with ignore-bits, which is mtable::mt_hash[LNET_MT_HASH_IGNORE] */ +#define LNET_MT_BITS_U64 6 /* 2^6 bits */ +#define LNET_MT_EXHAUSTED_BITS (LNET_MT_HASH_BITS - LNET_MT_BITS_U64) +#define LNET_MT_EXHAUSTED_BMAP ((1 << LNET_MT_EXHAUSTED_BITS) + 1) + +/* portal match table */ +struct lnet_match_table { + /* reserved for upcoming patches, CPU partition ID */ + unsigned int mt_cpt; + unsigned int mt_portal; /* portal index */ + /* match table is set as "enabled" if there's non-exhausted MD + * attached on mt_mhash, it's only valide for wildcard portal */ + unsigned int mt_enabled; + /* bitmap to flag whether MEs on mt_hash are exhausted or not */ + __u64 mt_exhausted[LNET_MT_EXHAUSTED_BMAP]; + cfs_list_t *mt_mhash; /* matching hash */ +}; + +/* these are only useful for wildcard portal */ +/* Turn off message rotor for wildcard portals */ +#define LNET_PTL_ROTOR_OFF 0 +/* round-robin dispatch all PUT messages for wildcard portals */ +#define LNET_PTL_ROTOR_ON 1 +/* round-robin dispatch routed PUT message for wildcard portals */ +#define LNET_PTL_ROTOR_RR_RT 2 +/* dispatch routed PUT message by hashing source NID for wildcard portals */ +#define LNET_PTL_ROTOR_HASH_RT 3 + +typedef struct lnet_portal { #ifdef __KERNEL__ - cfs_spinlock_t ln_lock; - cfs_waitq_t ln_waitq; - cfs_mutex_t ln_api_mutex; - cfs_mutex_t ln_lnd_mutex; + spinlock_t ptl_lock; #else # ifndef HAVE_LIBPTHREAD - int ln_lock; - int ln_api_mutex; - int ln_lnd_mutex; + int ptl_lock; # else - pthread_cond_t ln_cond; - pthread_mutex_t ln_lock; - pthread_mutex_t ln_api_mutex; - pthread_mutex_t ln_lnd_mutex; + pthread_mutex_t ptl_lock; # endif #endif + unsigned int ptl_index; /* portal ID, reserved */ + /* flags on this portal: lazy, unique... */ + unsigned int ptl_options; + /* list of messags which are stealing buffer */ + cfs_list_t ptl_msg_stealing; + /* messages blocking for MD */ + cfs_list_t ptl_msg_delayed; + /* Match table for each CPT */ + struct lnet_match_table **ptl_mtables; + /* spread rotor of incoming "PUT" */ + int ptl_rotor; + /* # active entries for this portal */ + int ptl_mt_nmaps; + /* array of active entries' cpu-partition-id */ + int ptl_mt_maps[0]; +} lnet_portal_t; - /* Stuff initialised at LNetNIInit() */ - - int ln_shutdown; /* shutdown in progress */ - int ln_nportals; /* # portals */ - lnet_portal_t *ln_portals; /* the vector of portals */ - - lnet_pid_t ln_pid; /* requested pid */ - - cfs_list_t ln_nis; /* LND instances */ - lnet_ni_t *ln_loni; /* the loopback NI */ - lnet_ni_t *ln_eqwaitni; /* NI to wait for events in */ - cfs_list_t ln_zombie_nis; /* dying LND instances */ - int ln_nzombie_nis; /* # of NIs to wait for */ - - cfs_list_t ln_remote_nets; /* remote networks with routes to them */ - __u64 ln_remote_nets_version; /* validity stamp */ - - cfs_list_t ln_routers; /* list of all known routers */ - __u64 ln_routers_version; /* validity stamp */ - - cfs_list_t *ln_peer_hash; /* NID->peer hash */ - int ln_npeers; /* # peers extant */ - int ln_peertable_version; /* /proc validity stamp */ - - int ln_routing; /* am I a router? */ - lnet_rtrbufpool_t ln_rtrpools[LNET_NRBPOOLS]; /* router buffer pools */ - - int ln_lh_hash_size; /* size of lib handle hash table */ - cfs_list_t *ln_lh_hash_table; /* all extant lib handles, this interface */ - __u64 ln_next_object_cookie; /* cookie generator */ - __u64 ln_interface_cookie; /* uniquely identifies this ni in this epoch */ +#define LNET_LH_HASH_BITS 12 +#define LNET_LH_HASH_SIZE (1ULL << LNET_LH_HASH_BITS) +#define LNET_LH_HASH_MASK (LNET_LH_HASH_SIZE - 1) - char *ln_network_tokens; /* space for network names */ - int ln_network_tokens_nob; +/* resource container (ME, MD, EQ) */ +struct lnet_res_container { + unsigned int rec_type; /* container type */ + __u64 rec_lh_cookie; /* cookie generator */ + cfs_list_t rec_active; /* active resource list */ + cfs_list_t *rec_lh_hash; /* handle hash */ +#ifdef LNET_USE_LIB_FREELIST + lnet_freelist_t rec_freelist; /* freelist for resources */ +#endif +}; + +/* message container */ +struct lnet_msg_container { + int msc_init; /* initialized or not */ + /* max # threads finalizing */ + int msc_nfinalizers; + /* msgs waiting to complete finalizing */ + cfs_list_t msc_finalizing; + cfs_list_t msc_active; /* active message list */ + /* threads doing finalization */ + void **msc_finalizers; +#ifdef LNET_USE_LIB_FREELIST + lnet_freelist_t msc_freelist; /* freelist for messages */ +#endif +}; - int ln_testprotocompat; /* test protocol compatibility flags */ +/* Router Checker states */ +#define LNET_RC_STATE_SHUTDOWN 0 /* not started */ +#define LNET_RC_STATE_RUNNING 1 /* started up OK */ +#define LNET_RC_STATE_STOPPING 2 /* telling thread to stop */ - cfs_list_t ln_finalizeq; /* msgs waiting to complete finalizing */ +typedef struct +{ + /* CPU partition table of LNet */ + struct cfs_cpt_table *ln_cpt_table; + /* number of CPTs in ln_cpt_table */ + unsigned int ln_cpt_number; + unsigned int ln_cpt_bits; + + /* protect LNet resources (ME/MD/EQ) */ + struct cfs_percpt_lock *ln_res_lock; + /* # portals */ + int ln_nportals; + /* the vector of portals */ + lnet_portal_t **ln_portals; + /* percpt ME containers */ + struct lnet_res_container **ln_me_containers; + /* percpt MD container */ + struct lnet_res_container **ln_md_containers; + + /* Event Queue container */ + struct lnet_res_container ln_eq_container; #ifdef __KERNEL__ - void **ln_finalizers; /* threads doing finalization */ - int ln_nfinalizers; /* max # threads finalizing */ + cfs_waitq_t ln_eq_waitq; + spinlock_t ln_eq_wait_lock; #else - int ln_finalizing; +# ifndef HAVE_LIBPTHREAD + int ln_eq_wait_lock; +# else + pthread_cond_t ln_eq_cond; + pthread_mutex_t ln_eq_wait_lock; +# endif #endif - cfs_list_t ln_test_peers; /* failure simulation */ - - lnet_handle_md_t ln_ping_target_md; - lnet_handle_eq_t ln_ping_target_eq; - lnet_ping_info_t *ln_ping_info; - + unsigned int ln_remote_nets_hbits; + + /* protect NI, peer table, credits, routers, rtrbuf... */ + struct cfs_percpt_lock *ln_net_lock; + /* percpt message containers for active/finalizing/freed message */ + struct lnet_msg_container **ln_msg_containers; + lnet_counters_t **ln_counters; + struct lnet_peer_table **ln_peer_tables; + /* failure simulation */ + cfs_list_t ln_test_peers; + + cfs_list_t ln_nis; /* LND instances */ + /* NIs bond on specific CPT(s) */ + cfs_list_t ln_nis_cpt; + /* dying LND instances */ + cfs_list_t ln_nis_zombie; + lnet_ni_t *ln_loni; /* the loopback NI */ + /* NI to wait for events in */ + lnet_ni_t *ln_eq_waitni; + + /* remote networks with routes to them */ + cfs_list_t *ln_remote_nets_hash; + /* validity stamp */ + __u64 ln_remote_nets_version; + /* list of all known routers */ + cfs_list_t ln_routers; + /* validity stamp */ + __u64 ln_routers_version; + /* percpt router buffer pools */ + lnet_rtrbufpool_t **ln_rtrpools; + + lnet_handle_md_t ln_ping_target_md; + lnet_handle_eq_t ln_ping_target_eq; + lnet_ping_info_t *ln_ping_info; + + /* router checker startup/shutdown state */ + int ln_rc_state; + /* router checker's event queue */ + lnet_handle_eq_t ln_rc_eqh; + /* rcd still pending on net */ + cfs_list_t ln_rcd_deathrow; + /* rcd ready for free */ + cfs_list_t ln_rcd_zombie; #ifdef __KERNEL__ - cfs_semaphore_t ln_rc_signal; /* serialise startup/shutdown */ -#endif - int ln_rc_state; /* router checker startup/shutdown state */ - lnet_handle_eq_t ln_rc_eqh; /* router checker's event queue */ - lnet_handle_md_t ln_rc_mdh; - cfs_list_t ln_zombie_rcd; + /* serialise startup/shutdown */ + struct semaphore ln_rc_signal; -#ifdef LNET_USE_LIB_FREELIST - lnet_freelist_t ln_free_mes; - lnet_freelist_t ln_free_msgs; - lnet_freelist_t ln_free_mds; - lnet_freelist_t ln_free_eqs; + struct mutex ln_api_mutex; + struct mutex ln_lnd_mutex; +#else +# ifndef HAVE_LIBPTHREAD + int ln_api_mutex; + int ln_lnd_mutex; +# else + pthread_mutex_t ln_api_mutex; + pthread_mutex_t ln_lnd_mutex; +# endif #endif - cfs_list_t ln_active_msgs; - cfs_list_t ln_active_mds; - cfs_list_t ln_active_eqs; - - lnet_counters_t ln_counters; + int ln_init; /* LNetInit() called? */ + /* Have I called LNetNIInit myself? */ + int ln_niinit_self; + /* LNetNIInit/LNetNIFini counter */ + int ln_refcount; + /* shutdown in progress */ + int ln_shutdown; + + int ln_routing; /* am I a router? */ + lnet_pid_t ln_pid; /* requested pid */ + /* uniquely identifies this ni in this epoch */ + __u64 ln_interface_cookie; + /* registered LNDs */ + cfs_list_t ln_lnds; + + /* space for network names */ + char *ln_network_tokens; + int ln_network_tokens_nob; + /* test protocol compatibility flags */ + int ln_testprotocompat; #ifndef __KERNEL__ - /* Temporary workaround to allow uOSS and test programs force - * server mode in userspace. The only place where we use it is - * lnet_prepare(). The only way to turn this flag on is to - * call lnet_server_mode() */ - - int ln_server_mode_flag; + /* Temporary workaround to allow uOSS and test programs force + * server mode in userspace. The only place where we use it is + * lnet_prepare(). The only way to turn this flag on is to + * call lnet_server_mode() */ + int ln_server_mode_flag; #endif } lnet_t;