-/* -*- 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.
/*
* 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/
#include <lnet/darwin/lib-types.h>
#elif defined(__WINNT__)
#include <lnet/winnt/lib-types.h>
+#include <libcfs/libcfs_pack.h>
+#include <libcfs/libcfs_unpack.h>
#else
#error Unsupported Operating System
#endif
#define WIRE_ATTR __attribute__((packed))
/* Packed version of lnet_process_id_t to transfer via network */
-#include <libcfs/libcfs_pack.h>
typedef struct {
lnet_nid_t nid;
lnet_pid_t pid; /* node id / process id */
__u64 wh_interface_cookie;
__u64 wh_object_cookie;
} WIRE_ATTR lnet_handle_wire_t;
-#include <libcfs/libcfs_unpack.h>
typedef enum {
LNET_MSG_ACK = 0,
* 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 <libcfs/libcfs_pack.h>
typedef struct lnet_ack {
lnet_handle_wire_t dst_wmd;
__u64 match_bits;
__u32 acr_version; /* protocol version */
__u64 acr_nid; /* target NID */
} WIRE_ATTR lnet_acceptor_connreq_t;
-#include <libcfs/libcfs_unpack.h>
#define LNET_PROTO_ACCEPTOR_VERSION 1
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 */
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 */
((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 {
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;
#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 */
__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 {
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;
lnet_kiov_t rb_kiov[0]; /* the buffer space */
} lnet_rtrbuf_t;
-#include <libcfs/libcfs_pack.h>
typedef struct {
__u32 msgs_alloc;
__u32 msgs_max;
__u64 route_length;
__u64 drop_length;
} WIRE_ATTR lnet_counters_t;
-#include <libcfs/libcfs_unpack.h>
#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;