* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, 2016, Intel Corporation.
+ * Copyright (c) 2012, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <linux/kthread.h>
#include <linux/uio.h>
+#include <linux/semaphore.h>
#include <linux/types.h>
-#include <lnet/lnetctl.h>
+#include <uapi/linux/lnet/lnet-dlc.h>
+#include <uapi/linux/lnet/lnetctl.h>
/* Max payload size */
-#ifndef CONFIG_LNET_MAX_PAYLOAD
-# error "CONFIG_LNET_MAX_PAYLOAD must be defined in config.h"
-#endif
+#define LNET_MAX_PAYLOAD LNET_MTU
-#define LNET_MAX_PAYLOAD CONFIG_LNET_MAX_PAYLOAD
-#if (LNET_MAX_PAYLOAD < LNET_MTU)
-# error "LNET_MAX_PAYLOAD too small - error in configure --with-max-payload-mb"
-#elif (LNET_MAX_PAYLOAD > (PAGE_SIZE * LNET_MAX_IOV))
-# error "LNET_MAX_PAYLOAD too large - error in configure --with-max-payload-mb"
-#endif
+#define LNET_MAX_IOV (LNET_MAX_PAYLOAD >> PAGE_SHIFT)
+
+/*
+ * This is the maximum health value.
+ * All local and peer NIs created have their health default to this value.
+ */
+#define LNET_MAX_HEALTH_VALUE 1000
/* forward refs */
struct lnet_libmd;
-typedef struct lnet_msg {
+struct lnet_msg {
struct list_head msg_activelist;
struct list_head msg_list; /* Q for credits/MD */
- lnet_process_id_t msg_target;
+ struct lnet_process_id msg_target;
/* Primary NID of the source. */
lnet_nid_t msg_initiator;
/* where is it from, it's only for building event */
lnet_nid_t msg_from;
__u32 msg_type;
+ /*
+ * hold parameters in case message is with held due
+ * to discovery
+ */
+ lnet_nid_t msg_src_nid_param;
+ lnet_nid_t msg_rtr_nid_param;
+
/* committed for sending */
unsigned int msg_tx_committed:1;
/* CPT # this message committed for sending */
struct kvec *msg_iov;
lnet_kiov_t *msg_kiov;
- lnet_event_t msg_ev;
- lnet_hdr_t msg_hdr;
-} lnet_msg_t;
-
+ struct lnet_event msg_ev;
+ struct lnet_hdr msg_hdr;
+};
-typedef struct lnet_libhandle {
+struct lnet_libhandle {
struct list_head lh_hash_chain;
__u64 lh_cookie;
-} lnet_libhandle_t;
+};
#define lh_entry(ptr, type, member) \
((type *)((char *)(ptr)-(char *)(&((type *)0)->member)))
-typedef struct lnet_eq {
+struct lnet_eq {
struct list_head eq_list;
- lnet_libhandle_t eq_lh;
- lnet_seq_t eq_enq_seq;
- lnet_seq_t eq_deq_seq;
+ struct lnet_libhandle eq_lh;
+ unsigned long eq_enq_seq;
+ unsigned long eq_deq_seq;
unsigned int eq_size;
lnet_eq_handler_t eq_callback;
- lnet_event_t *eq_events;
+ struct lnet_event *eq_events;
int **eq_refs; /* percpt refcount for EQ */
-} lnet_eq_t;
+};
-typedef struct lnet_me {
+struct lnet_me {
struct list_head me_list;
- lnet_libhandle_t me_lh;
- lnet_process_id_t me_match_id;
+ struct lnet_libhandle me_lh;
+ struct lnet_process_id 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;
+ enum lnet_unlink me_unlink;
struct lnet_libmd *me_md;
-} lnet_me_t;
+};
-typedef struct lnet_libmd {
+struct lnet_libmd {
struct list_head md_list;
- lnet_libhandle_t md_lh;
- lnet_me_t *md_me;
+ struct lnet_libhandle md_lh;
+ struct lnet_me *md_me;
char *md_start;
unsigned int md_offset;
unsigned int md_length;
unsigned int md_flags;
unsigned int md_niov; /* # frags at end of struct */
void *md_user_ptr;
- lnet_eq_t *md_eq;
+ struct lnet_eq *md_eq;
+ struct lnet_handle_md md_bulk_handle;
union {
struct kvec iov[LNET_MAX_IOV];
lnet_kiov_t kiov[LNET_MAX_IOV];
} md_iov;
-} lnet_libmd_t;
+};
#define LNET_MD_FLAG_ZOMBIE (1 << 0)
#define LNET_MD_FLAG_AUTO_UNLINK (1 << 1)
#define LNET_MD_FLAG_ABORTED (1 << 2)
-typedef struct {
+struct lnet_test_peer {
/* info about peers we are trying to fail */
struct list_head tp_list; /* ln_test_peers */
lnet_nid_t tp_nid; /* matching nid */
unsigned int tp_threshold; /* # failures to simulate */
-} lnet_test_peer_t;
+};
#define LNET_COOKIE_TYPE_MD 1
#define LNET_COOKIE_TYPE_ME 2
struct lnet_ni; /* forward ref */
struct socket;
-typedef struct lnet_lnd
-{
+struct lnet_lnd {
/* fields managed by portals */
struct list_head lnd_list; /* stash in the LND table */
int lnd_refcount; /* # active instances */
* and 'private' is the 'private' passed to lnet_parse(). Return
* non-zero for immediate failure, otherwise complete later with
* lnet_finalize() */
- int (*lnd_send)(struct lnet_ni *ni, void *private, lnet_msg_t *msg);
+ int (*lnd_send)(struct lnet_ni *ni, void *private,
+ struct lnet_msg *msg);
/* Start receiving 'mlen' bytes of payload data, skipping the following
* 'rlen' - 'mlen' bytes. 'private' is the 'private' passed to
* lnet_parse(). Return non-zero for immedaite failure, otherwise
* complete later with lnet_finalize(). This also gives back a receive
* credit if the LND does flow control. */
- int (*lnd_recv)(struct lnet_ni *ni, void *private, lnet_msg_t *msg,
+ int (*lnd_recv)(struct lnet_ni *ni, void *private, struct lnet_msg *msg,
int delayed, unsigned int niov,
struct kvec *iov, lnet_kiov_t *kiov,
unsigned int offset, unsigned int mlen, unsigned int rlen);
* for success and do NOT give back a receive credit; that has to wait
* until lnd_recv() gets called. On failure return < 0 and
* release resources; lnd_recv() will not be called. */
- int (*lnd_eager_recv)(struct lnet_ni *ni, void *private, lnet_msg_t *msg,
- void **new_privatep);
+ int (*lnd_eager_recv)(struct lnet_ni *ni, void *private,
+ struct lnet_msg *msg, void **new_privatep);
/* notification of peer health */
void (*lnd_notify)(struct lnet_ni *ni, lnet_nid_t peer, int alive);
/* query of peer aliveness */
- void (*lnd_query)(struct lnet_ni *ni, lnet_nid_t peer, cfs_time_t *when);
+ void (*lnd_query)(struct lnet_ni *ni, lnet_nid_t peer, time64_t *when);
/* accept a new connection */
int (*lnd_accept)(struct lnet_ni *ni, struct socket *sock);
-} lnd_t;
-
-typedef struct lnet_ni_status {
- lnet_nid_t ns_nid;
- __u32 ns_status;
- __u32 ns_unused;
-} WIRE_ATTR lnet_ni_status_t;
+};
struct lnet_tx_queue {
int tq_credits; /* # tx credits free */
LNET_NI_STATE_DELETING
};
+enum lnet_stats_type {
+ LNET_STATS_TYPE_SEND = 0,
+ LNET_STATS_TYPE_RECV,
+ LNET_STATS_TYPE_DROP
+};
+
+struct lnet_comm_count {
+ atomic_t co_get_count;
+ atomic_t co_put_count;
+ atomic_t co_reply_count;
+ atomic_t co_ack_count;
+ atomic_t co_hello_count;
+};
+
struct lnet_element_stats {
- atomic_t send_count;
- atomic_t recv_count;
- atomic_t drop_count;
+ struct lnet_comm_count el_send_stats;
+ struct lnet_comm_count el_recv_stats;
+ struct lnet_comm_count el_drop_stats;
};
struct lnet_net {
bool net_tunables_set;
/* procedural interface */
- lnd_t *net_lnd;
+ struct lnet_lnd *net_lnd;
/* list of NIs on this net */
struct list_head net_ni_list;
enum lnet_net_state net_state;
};
-typedef struct lnet_ni {
+struct lnet_ni {
/* chain on the lnet_net structure */
struct list_head ni_netlist;
int **ni_refs;
/* when I was last alive */
- long ni_last_alive;
+ time64_t ni_last_alive;
/* pointer to parent network */
struct lnet_net *ni_net;
/* my health status */
- lnet_ni_status_t *ni_status;
+ struct lnet_ni_status *ni_status;
/* NI FSM */
enum lnet_ni_state ni_state;
__u32 ni_seq;
/*
+ * health value
+ * initialized to LNET_MAX_HEALTH_VALUE
+ * Value is decremented every time we fail to send a message over
+ * this NI because of a NI specific failure.
+ * Value is incremented if we successfully send a message.
+ */
+ atomic_t ni_healthv;
+
+ /*
* equivalent interfaces to use
* This is an array because socklnd bonding can still be configured
*/
- char *ni_interfaces[LNET_MAX_INTERFACES];
+ char *ni_interfaces[LNET_INTERFACES_NUM];
struct net *ni_net_ns; /* original net namespace */
-} lnet_ni_t;
+};
#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_RTE_DISABLED (1 << 2) /* Routing enabled */
+/*
+ * Descriptor of a ping info buffer: keep a separate indicator of the
+ * size and a reference count. The type is used both as a source and
+ * sink of data, so we need to keep some information outside of the
+ * area that may be overwritten by network data.
+ */
+struct lnet_ping_buffer {
+ int pb_nnis;
+ atomic_t pb_refcnt;
+ struct lnet_ping_info pb_info;
+};
-#define LNET_PING_FEAT_MASK (LNET_PING_FEAT_BASE | \
- LNET_PING_FEAT_NI_STATUS)
+#define LNET_PING_BUFFER_SIZE(NNIDS) \
+ offsetof(struct lnet_ping_buffer, pb_info.pi_ni[NNIDS])
+#define LNET_PING_BUFFER_LONI(PBUF) ((PBUF)->pb_info.pi_ni[0].ns_nid)
+#define LNET_PING_BUFFER_SEQNO(PBUF) ((PBUF)->pb_info.pi_ni[0].ns_status)
-typedef struct lnet_ping_info {
- __u32 pi_magic;
- __u32 pi_features;
- lnet_pid_t pi_pid;
- __u32 pi_nnis;
- struct lnet_ni_status pi_ni[0];
-} WIRE_ATTR lnet_ping_info_t;
+#define LNET_PING_INFO_TO_BUFFER(PINFO) \
+ container_of((PINFO), struct lnet_ping_buffer, pb_info)
/* router checker data, per router */
-#define LNET_MAX_RTR_NIS 16
-#define LNET_PINGINFO_SIZE offsetof(struct lnet_ping_info, pi_ni[LNET_MAX_RTR_NIS])
-typedef struct {
+struct lnet_rc_data {
/* chain on the_lnet.ln_zombie_rcd or ln_deathrow_rcd */
struct list_head rcd_list;
- lnet_handle_md_t rcd_mdh; /* ping buffer MD */
+ struct lnet_handle_md rcd_mdh; /* ping buffer MD */
struct lnet_peer_ni *rcd_gateway; /* reference to gateway */
- struct lnet_ping_info *rcd_pinginfo; /* ping buffer */
-} lnet_rc_data_t;
+ struct lnet_ping_buffer *rcd_pingbuffer;/* ping buffer */
+ int rcd_nnis; /* desired size of buffer */
+};
struct lnet_peer_ni {
- /* chain on peer_net */
- struct list_head lpni_on_peer_net_list;
+ /* chain on lpn_peer_nis */
+ struct list_head lpni_peer_nis;
/* chain on remote peer list */
struct list_head lpni_on_remote_peer_ni_list;
/* chain on peer hash */
/* # times router went dead<->alive. Protected with lpni_lock */
int lpni_alive_count;
/* time of last aliveness news */
- cfs_time_t lpni_timestamp;
+ time64_t lpni_timestamp;
/* time of last ping attempt */
- cfs_time_t lpni_ping_timestamp;
+ time64_t lpni_ping_timestamp;
/* != 0 if ping reply expected */
- cfs_time_t lpni_ping_deadline;
+ time64_t lpni_ping_deadline;
/* when I was last alive */
- cfs_time_t lpni_last_alive;
+ time64_t lpni_last_alive;
/* when lpni_ni was queried last time */
- cfs_time_t lpni_last_query;
+ time64_t lpni_last_query;
/* network peer is on */
struct lnet_net *lpni_net;
/* peer's NID */
atomic_t lpni_refcount;
/* CPT this peer attached on */
int lpni_cpt;
+ /* state flags -- protected by lpni_lock */
+ unsigned lpni_state;
/* # refs from lnet_route_t::lr_gateway */
int lpni_rtr_refcount;
/* sequence number used to round robin over peer nis within a net */
unsigned int lpni_ping_feats;
/* routes on this peer */
struct list_head lpni_routes;
- /* array of preferred local nids */
- lnet_nid_t *lpni_pref_nids;
+ /* preferred local nids: if only one, use lpni_pref.nid */
+ union lpni_pref {
+ lnet_nid_t nid;
+ lnet_nid_t *nids;
+ } lpni_pref;
/* number of preferred NIDs in lnpi_pref_nids */
__u32 lpni_pref_nnids;
/* router checker state */
- lnet_rc_data_t *lpni_rcd;
+ struct lnet_rc_data *lpni_rcd;
};
+/* Preferred path added due to traffic on non-MR peer_ni */
+#define LNET_PEER_NI_NON_MR_PREF (1 << 0)
+
struct lnet_peer {
- /* chain on global peer list */
- struct list_head lp_on_lnet_peer_list;
+ /* chain on pt_peer_list */
+ struct list_head lp_peer_list;
/* list of peer nets */
struct list_head lp_peer_nets;
+ /* list of messages pending discovery*/
+ struct list_head lp_dc_pendq;
+
/* primary NID of the peer */
lnet_nid_t lp_primary_nid;
- /* peer is Multi-Rail enabled peer */
- bool lp_multi_rail;
+ /* CPT of peer_table */
+ int lp_cpt;
+
+ /* number of NIDs on this peer */
+ int lp_nnis;
+
+ /* reference count */
+ atomic_t lp_refcount;
+
+ /* lock protecting peer state flags */
+ spinlock_t lp_lock;
+
+ /* peer state flags */
+ unsigned lp_state;
+
+ /* buffer for data pushed by peer */
+ struct lnet_ping_buffer *lp_data;
+
+ /* MD handle for ping in progress */
+ struct lnet_handle_md lp_ping_mdh;
+
+ /* MD handle for push in progress */
+ struct lnet_handle_md lp_push_mdh;
+
+ /* number of NIDs for sizing push data */
+ int lp_data_nnis;
+
+ /* NI config sequence number of peer */
+ __u32 lp_peer_seqno;
+
+ /* Local NI config sequence number acked by peer */
+ __u32 lp_node_seqno;
+
+ /* Local NI config sequence number sent to peer */
+ __u32 lp_node_seqno_sent;
+
+ /* Ping error encountered during discovery. */
+ int lp_ping_error;
+
+ /* Push error encountered during discovery. */
+ int lp_push_error;
+
+ /* Error encountered during discovery. */
+ int lp_dc_error;
+
+ /* time it was put on the ln_dc_working queue */
+ time64_t lp_last_queued;
+
+ /* link on discovery-related lists */
+ struct list_head lp_dc_list;
+
+ /* tasks waiting on discovery of this peer */
+ wait_queue_head_t lp_dc_waitq;
};
+/*
+ * The status flags in lp_state. Their semantics have chosen so that
+ * lp_state can be zero-initialized.
+ *
+ * A peer is marked MULTI_RAIL in two cases: it was configured using DLC
+ * as multi-rail aware, or the LNET_PING_FEAT_MULTI_RAIL bit was set.
+ *
+ * A peer is marked NO_DISCOVERY if the LNET_PING_FEAT_DISCOVERY bit was
+ * NOT set when the peer was pinged by discovery.
+ */
+#define LNET_PEER_MULTI_RAIL (1 << 0) /* Multi-rail aware */
+#define LNET_PEER_NO_DISCOVERY (1 << 1) /* Peer disabled discovery */
+/*
+ * A peer is marked CONFIGURED if it was configured by DLC.
+ *
+ * In addition, a peer is marked DISCOVERED if it has fully passed
+ * through Peer Discovery.
+ *
+ * When Peer Discovery is disabled, the discovery thread will mark
+ * peers REDISCOVER to indicate that they should be re-examined if
+ * discovery is (re)enabled on the node.
+ *
+ * A peer that was created as the result of inbound traffic will not
+ * be marked at all.
+ */
+#define LNET_PEER_CONFIGURED (1 << 2) /* Configured via DLC */
+#define LNET_PEER_DISCOVERED (1 << 3) /* Peer was discovered */
+#define LNET_PEER_REDISCOVER (1 << 4) /* Discovery was disabled */
+/*
+ * A peer is marked DISCOVERING when discovery is in progress.
+ * The other flags below correspond to stages of discovery.
+ */
+#define LNET_PEER_DISCOVERING (1 << 5) /* Discovering */
+#define LNET_PEER_DATA_PRESENT (1 << 6) /* Remote peer data present */
+#define LNET_PEER_NIDS_UPTODATE (1 << 7) /* Remote peer info uptodate */
+#define LNET_PEER_PING_SENT (1 << 8) /* Waiting for REPLY to Ping */
+#define LNET_PEER_PUSH_SENT (1 << 9) /* Waiting for ACK of Push */
+#define LNET_PEER_PING_FAILED (1 << 10) /* Ping send failure */
+#define LNET_PEER_PUSH_FAILED (1 << 11) /* Push send failure */
+/*
+ * A ping can be forced as a way to fix up state, or as a manual
+ * intervention by an admin.
+ * A push can be forced in circumstances that would normally not
+ * allow for one to happen.
+ */
+#define LNET_PEER_FORCE_PING (1 << 12) /* Forced Ping */
+#define LNET_PEER_FORCE_PUSH (1 << 13) /* Forced Push */
+
struct lnet_peer_net {
- /* chain on peer block */
- struct list_head lpn_on_peer_list;
+ /* chain on lp_peer_nets */
+ struct list_head lpn_peer_nets;
/* list of peer_nis on this network */
struct list_head lpn_peer_nis;
/* Net ID */
__u32 lpn_net_id;
+
+ /* reference count */
+ atomic_t lpn_refcount;
};
/* peer hash size */
#define LNET_PEER_HASH_BITS 9
#define LNET_PEER_HASH_SIZE (1 << LNET_PEER_HASH_BITS)
-/* peer hash table */
+/*
+ * peer hash table - one per CPT
+ *
+ * protected by lnet_net_lock/EX for update
+ * pt_version
+ * pt_number
+ * pt_hash[...]
+ * pt_peer_list
+ * pt_peers
+ * protected by pt_zombie_lock:
+ * pt_zombie_list
+ * pt_zombies
+ *
+ * pt_zombie lock nests inside lnet_net_lock
+ */
struct lnet_peer_table {
int pt_version; /* /proc validity stamp */
- atomic_t pt_number; /* # peers extant */
+ int pt_number; /* # peers_ni extant */
struct list_head *pt_hash; /* NID->peer hash */
- struct list_head pt_zombie_list; /* zombie peers */
- int pt_zombies; /* # zombie peers */
+ struct list_head pt_peer_list; /* peers */
+ int pt_peers; /* # peers */
+ struct list_head pt_zombie_list; /* zombie peer_ni */
+ int pt_zombies; /* # zombie peers_ni */
spinlock_t pt_zombie_lock; /* protect list and count */
};
/* 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 */
+ * struct lnet_ni::ni_peertimeout has been set to a positive value
+ */
#define lnet_peer_aliveness_enabled(lp) (the_lnet.ln_routing != 0 && \
- (lp)->lpni_net->net_tunables.lct_peer_timeout > 0)
+ ((lp)->lpni_net) && \
+ (lp)->lpni_net->net_tunables.lct_peer_timeout > 0)
-typedef struct {
+struct lnet_route {
struct list_head lr_list; /* chain on net */
struct list_head lr_gwlist; /* chain on gateway */
struct lnet_peer_ni *lr_gateway; /* router node */
unsigned int lr_downis; /* number of down NIs */
__u32 lr_hops; /* how far I am */
unsigned int lr_priority; /* route priority */
-} 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 {
+struct lnet_remotenet {
/* chain on ln_remote_nets_hash */
struct list_head lrn_list;
/* routes to me */
struct list_head lrn_routes;
/* my net number */
__u32 lrn_net;
-} lnet_remotenet_t;
+};
/** lnet message has credit and can be submitted to lnd for send/receive */
#define LNET_CREDIT_OK 0
/** lnet message is waiting for credit */
#define LNET_CREDIT_WAIT 1
+/** lnet message is waiting for discovery */
+#define LNET_DC_WAIT 2
-typedef struct {
+struct lnet_rtrbufpool {
/* my free buffer pool */
struct list_head rbp_bufs;
/* messages blocking for a buffer */
int rbp_credits;
/* low water mark */
int rbp_mincredits;
-} lnet_rtrbufpool_t;
+};
-typedef struct {
+struct lnet_rtrbuf {
struct list_head rb_list; /* chain on rbp_bufs */
- lnet_rtrbufpool_t *rb_pool; /* owning pool */
+ struct lnet_rtrbufpool *rb_pool; /* owning pool */
lnet_kiov_t rb_kiov[0]; /* the buffer space */
-} lnet_rtrbuf_t;
+};
#define LNET_PEER_HASHSIZE 503 /* prime! */
-enum {
+enum lnet_match_flags {
/* Didn't match anything */
LNET_MATCHMD_NONE = (1 << 0),
/* Matched OK */
LNET_MATCHMD_FINISH = (LNET_MATCHMD_OK | LNET_MATCHMD_DROP),
};
-/* Options for lnet_portal_t::ptl_options */
+/* Options for struct lnet_portal::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 */
/* parameter for matching operations (GET, PUT) */
struct lnet_match_info {
__u64 mi_mbits;
- lnet_process_id_t mi_id;
+ struct lnet_process_id mi_id;
unsigned int mi_cpt;
unsigned int mi_opc;
unsigned int mi_portal;
/* dispatch routed PUT message by hashing source NID for wildcard portals */
#define LNET_PTL_ROTOR_HASH_RT 3
-typedef struct lnet_portal {
+struct lnet_portal {
spinlock_t ptl_lock;
unsigned int ptl_index; /* portal ID, reserved */
/* flags on this portal: lazy, unique... */
int ptl_mt_nmaps;
/* array of active entries' cpu-partition-id */
int ptl_mt_maps[0];
-} lnet_portal_t;
+};
#define LNET_LH_HASH_BITS 12
#define LNET_LH_HASH_SIZE (1ULL << LNET_LH_HASH_BITS)
void **msc_finalizers;
};
+/* Peer Discovery states */
+#define LNET_DC_STATE_SHUTDOWN 0 /* not started */
+#define LNET_DC_STATE_RUNNING 1 /* started up OK */
+#define LNET_DC_STATE_STOPPING 2 /* telling thread to stop */
+
/* 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 */
-typedef struct
-{
+/* LNet states */
+#define LNET_STATE_SHUTDOWN 0 /* not started */
+#define LNET_STATE_RUNNING 1 /* started up OK */
+#define LNET_STATE_STOPPING 2 /* telling thread to stop */
+
+struct lnet {
/* CPU partition table of LNet */
struct cfs_cpt_table *ln_cpt_table;
/* number of CPTs in ln_cpt_table */
/* # portals */
int ln_nportals;
/* the vector of portals */
- lnet_portal_t **ln_portals;
+ struct lnet_portal **ln_portals;
/* percpt ME containers */
struct lnet_res_container **ln_me_containers;
/* percpt MD container */
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_counters **ln_counters;
struct lnet_peer_table **ln_peer_tables;
- /* list of configured or discovered peers */
- struct list_head ln_peers;
/* list of peer nis not on a local network */
struct list_head ln_remote_peer_ni_list;
/* failure simulation */
struct lnet_ni *ln_loni;
/* network zombie list */
struct list_head ln_net_zombie;
+ /* resend messages list */
+ struct list_head ln_msg_resend;
+ /* spin lock to protect the msg resend list */
+ spinlock_t ln_msg_resend_lock;
/* remote networks with routes to them */
struct list_head *ln_remote_nets_hash;
/* validity stamp */
__u64 ln_routers_version;
/* percpt router buffer pools */
- lnet_rtrbufpool_t **ln_rtrpools;
+ struct lnet_rtrbufpool **ln_rtrpools;
+
+ /*
+ * Ping target / Push source
+ *
+ * The ping target and push source share a single buffer. The
+ * ln_ping_target is protected against concurrent updates by
+ * ln_api_mutex.
+ */
+ struct lnet_handle_md ln_ping_target_md;
+ struct lnet_handle_eq ln_ping_target_eq;
+ struct lnet_ping_buffer *ln_ping_target;
+ atomic_t ln_ping_target_seqno;
- lnet_handle_md_t ln_ping_target_md;
- lnet_handle_eq_t ln_ping_target_eq;
- struct lnet_ping_info *ln_ping_info;
+ /*
+ * Push Target
+ *
+ * ln_push_nnis contains the desired size of the push target.
+ * The lnet_net_lock is used to handle update races. The old
+ * buffer may linger a while after it has been unlinked, in
+ * which case the event handler cleans up.
+ */
+ struct lnet_handle_eq ln_push_target_eq;
+ struct lnet_handle_md ln_push_target_md;
+ struct lnet_ping_buffer *ln_push_target;
+ int ln_push_target_nnis;
+
+ /* discovery event queue handle */
+ struct lnet_handle_eq ln_dc_eqh;
+ /* discovery requests */
+ struct list_head ln_dc_request;
+ /* discovery working list */
+ struct list_head ln_dc_working;
+ /* discovery expired list */
+ struct list_head ln_dc_expired;
+ /* discovery thread wait queue */
+ wait_queue_head_t ln_dc_waitq;
+ /* discovery startup/shutdown state */
+ int ln_dc_state;
/* router checker startup/shutdown state */
int ln_rc_state;
/* router checker's event queue */
- lnet_handle_eq_t ln_rc_eqh;
+ struct lnet_handle_eq ln_rc_eqh;
/* rcd still pending on net */
struct list_head ln_rcd_deathrow;
/* rcd ready for free */
int ln_niinit_self;
/* LNetNIInit/LNetNIFini counter */
int ln_refcount;
- /* shutdown in progress */
- int ln_shutdown;
+ /* SHUTDOWN/RUNNING/STOPPING */
+ int ln_state;
int ln_routing; /* am I a router? */
lnet_pid_t ln_pid; /* requested pid */
* the list, the router checker will sleep on this queue. when
* routes are added the thread will wake up */
wait_queue_head_t ln_rc_waitq;
-} lnet_t;
+};
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff