-/* -*- 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.
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2012, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <lnet/linux/lib-types.h>
#elif defined(__APPLE__)
#include <lnet/darwin/lib-types.h>
-#elif defined(__WINNT__)
-#include <lnet/winnt/lib-types.h>
#else
#error Unsupported Operating System
#endif
#define WIRE_ATTR __attribute__((packed))
+/* Packed version of lnet_process_id_t to transfer via network */
+typedef struct {
+ lnet_nid_t nid;
+ lnet_pid_t pid; /* node id / process id */
+} WIRE_ATTR lnet_process_id_packed_t;
+
/* The wire handle's interface cookie only matches one network interface in
* one epoch (i.e. new cookie when the interface restarts or the node
* reboots). The object cookie only matches one object on that interface
* during that object's lifetime (i.e. no cookie re-use). */
-#include <libcfs/libcfs_pack.h>
typedef struct {
__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;
/* PROTO MAGIC for LNDs */
#define LNET_PROTO_IB_MAGIC 0x0be91b91
-#define LNET_PROTO_OPENIB_MAGIC LNET_PROTO_IB_MAGIC
-#define LNET_PROTO_IIB_MAGIC LNET_PROTO_IB_MAGIC
-#define LNET_PROTO_VIB_MAGIC LNET_PROTO_IB_MAGIC
#define LNET_PROTO_RA_MAGIC 0x0be91b92
#define LNET_PROTO_QSW_MAGIC 0x0be91b93
+#define LNET_PROTO_GNI_MAGIC 0xb00fbabe /* ask Kim */
#define LNET_PROTO_TCP_MAGIC 0xeebc0ded
#define LNET_PROTO_PTL_MAGIC 0x50746C4E /* 'PtlN' unique magic */
-#define LNET_PROTO_GM_MAGIC 0x6d797269 /* 'myri'! */
#define LNET_PROTO_MX_MAGIC 0x4d583130 /* 'MX10'! */
#define LNET_PROTO_ACCEPTOR_MAGIC 0xacce7100
#define LNET_PROTO_PING_MAGIC 0x70696E67 /* 'ping' */
__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
struct lnet_libmd;
typedef struct lnet_msg {
- struct list_head msg_activelist;
- struct list_head msg_list; /* Q for credits/MD */
-
- lnet_process_id_t msg_target;
- __u32 msg_type;
-
- unsigned int msg_target_is_router:1; /* sending to a router */
- unsigned int msg_routing:1; /* being forwarded */
- 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 */
- unsigned int msg_peerrtrcredit:1; /* taken a peer router credit */
- unsigned int msg_onactivelist:1; /* on the activelist */
-
- struct lnet_peer *msg_txpeer; /* peer I'm sending to */
- struct lnet_peer *msg_rxpeer; /* peer I received from */
-
- void *msg_private;
- struct lnet_libmd *msg_md;
-
- unsigned int msg_len;
- unsigned int msg_wanted;
- unsigned int msg_offset;
- unsigned int msg_niov;
- struct iovec *msg_iov;
- lnet_kiov_t *msg_kiov;
-
- lnet_event_t msg_ev;
- lnet_hdr_t msg_hdr;
+ struct list_head msg_activelist;
+ struct list_head msg_list; /* Q for credits/MD */
+
+ lnet_process_id_t msg_target;
+ /* 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_routing:1; /* being forwarded */
+ 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_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 */
+ unsigned int msg_peerrtrcredit:1; /* taken a peer router credit */
+ unsigned int msg_onactivelist:1; /* on the activelist */
+
+ struct lnet_peer *msg_txpeer; /* peer I'm sending to */
+ struct lnet_peer *msg_rxpeer; /* peer I received from */
+
+ void *msg_private;
+ struct lnet_libmd *msg_md;
+
+ unsigned int msg_len;
+ unsigned int msg_wanted;
+ unsigned int msg_offset;
+ unsigned int msg_niov;
+ struct iovec *msg_iov;
+ lnet_kiov_t *msg_kiov;
+
+ lnet_event_t msg_ev;
+ lnet_hdr_t msg_hdr;
} lnet_msg_t;
typedef struct lnet_libhandle {
- struct list_head lh_hash_chain;
- __u64 lh_cookie;
+ 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 list_head 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;
+ struct list_head 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 {
- struct list_head me_list;
- lnet_libhandle_t me_lh;
- lnet_process_id_t me_match_id;
- unsigned int me_portal;
- __u64 me_match_bits;
- __u64 me_ignore_bits;
- lnet_unlink_t me_unlink;
- struct lnet_libmd *me_md;
+ struct list_head me_list;
+ 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;
+ struct lnet_libmd *me_md;
} lnet_me_t;
typedef struct lnet_libmd {
- struct list_head md_list;
- lnet_libhandle_t md_lh;
- lnet_me_t *md_me;
- char *md_start;
- unsigned int md_offset;
- unsigned int md_length;
- unsigned int md_max_size;
- int md_threshold;
- int md_refcount;
- unsigned int md_options;
- unsigned int md_flags;
- void *md_user_ptr;
- lnet_eq_t *md_eq;
- unsigned int md_niov; /* # frags */
- union {
- struct iovec iov[LNET_MAX_IOV];
- lnet_kiov_t kiov[LNET_MAX_IOV];
- } md_iov;
+ struct list_head md_list;
+ lnet_libhandle_t md_lh;
+ lnet_me_t *md_me;
+ char *md_start;
+ unsigned int md_offset;
+ unsigned int md_length;
+ unsigned int md_max_size;
+ int md_threshold;
+ int md_refcount;
+ unsigned int md_options;
+ unsigned int md_flags;
+ void *md_user_ptr;
+ lnet_eq_t *md_eq;
+ unsigned int md_niov; /* # frags */
+ union {
+ struct iovec 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_ZOMBIE (1 << 0)
+#define LNET_MD_FLAG_AUTO_UNLINK (1 << 1)
+#define LNET_MD_FLAG_ABORTED (1 << 2)
#ifdef LNET_USE_LIB_FREELIST
typedef struct
{
- void *fl_objs; /* single contiguous array of objects */
- int fl_nobjs; /* the number of them */
- int fl_objsize; /* the size (including overhead) of each of them */
- struct list_head fl_list; /* where they are enqueued */
+ /* single contiguous array of objects */
+ void *fl_objs;
+ /* the number of them */
+ int fl_nobjs;
+ /* the size (including overhead) of each of them */
+ int fl_objsize;
+ /* where they are enqueued */
+ struct list_head fl_list;
} lnet_freelist_t;
typedef struct
{
- struct list_head fo_list; /* enqueue on fl_list */
- void *fo_contents; /* aligned contents */
+ struct list_head fo_list; /* enqueue on fl_list */
+ void *fo_contents; /* aligned contents */
} lnet_freeobj_t;
#endif
typedef struct {
- /* 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 */
+ /* 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
#define LNET_COOKIE_TYPE_EQ 3
-#define LNET_COOKIE_TYPES 4
-/* 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_TYPE_BITS 2
+#define LNET_COOKIE_MASK ((1ULL << LNET_COOKIE_TYPE_BITS) - 1ULL)
struct lnet_ni; /* forward ref */
typedef struct lnet_lnd
{
- /* fields managed by portals */
- struct list_head lnd_list; /* stash in the LND table */
- int lnd_refcount; /* # active instances */
+ /* fields managed by portals */
+ struct list_head lnd_list; /* stash in the LND table */
+ int lnd_refcount; /* # active instances */
/* fields initialised by the LND */
- unsigned int lnd_type;
+ unsigned int lnd_type;
int (*lnd_startup) (struct lnet_ni *ni);
void (*lnd_shutdown) (struct lnet_ni *ni);
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, time_t *when);
+ void (*lnd_query)(struct lnet_ni *ni, lnet_nid_t peer, cfs_time_t *when);
#if defined(__KERNEL__) || defined(HAVE_LIBPTHREAD)
/* accept a new connection */
#endif
} lnd_t;
+#define LNET_NI_STATUS_UP 0x15aac0de
+#define LNET_NI_STATUS_DOWN 0xdeadface
+#define LNET_NI_STATUS_INVALID 0x00000000
+typedef struct {
+ 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 */
+ int tq_credits_min; /* lowest it's been */
+ int tq_credits_max; /* total # tx credits */
+ struct list_head tq_delayed; /* delayed TXs */
+};
+
#define LNET_MAX_INTERFACES 16
typedef struct lnet_ni {
- struct list_head ni_list; /* chain on ln_nis */
- struct list_head 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 */
- 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
+ struct list_head ni_list; /* chain on ln_nis */
+ struct list_head 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
+
+/* 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 */
+
+#define LNET_PING_FEAT_MASK (LNET_PING_FEAT_BASE | \
+ LNET_PING_FEAT_NI_STATUS)
+
+typedef struct {
+ __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 {
+ /* 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_peer *rcd_gateway; /* reference to gateway */
+ lnet_ping_info_t *rcd_pinginfo; /* ping buffer */
+} lnet_rc_data_t;
+
typedef struct lnet_peer {
- struct list_head lp_hashlist; /* chain on peer hash */
- struct list_head lp_txq; /* messages blocking for tx credits */
- struct list_head lp_rtrq; /* messages blocking for router credits */
- struct list_head lp_rtr_list; /* chain on router list */
- int lp_txcredits; /* # tx credits available */
- int lp_mintxcredits; /* low water mark */
- int lp_rtrcredits; /* # router credits */
- int lp_minrtrcredits; /* low water mark */
- unsigned int lp_alive:1; /* alive/dead? */
- unsigned int lp_notify:1; /* notification outstanding? */
- unsigned int lp_notifylnd:1; /* outstanding notification for LND? */
- unsigned int lp_notifying:1; /* some thread is handling notification */
- unsigned int lp_ping_notsent; /* SEND event outstanding from ping */
- int lp_alive_count; /* # times router went dead<->alive */
- long lp_txqnob; /* bytes queued for sending */
- time_t lp_timestamp; /* time of last aliveness news */
- time_t lp_last_alive; /* when I was last alive */
- time_t lp_last_query; /* when LND was queried last time */
- time_t lp_ping_timestamp; /* time of last ping attempt */
- time_t lp_ping_deadline; /* != 0 if ping reply expected */
- 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 */
+ /* chain on peer hash */
+ struct list_head lp_hashlist;
+ /* messages blocking for tx credits */
+ struct list_head lp_txq;
+ /* messages blocking for router credits */
+ struct list_head lp_rtrq;
+ /* chain on router list */
+ struct list_head lp_rtr_list;
+ /* # tx credits available */
+ int lp_txcredits;
+ /* low water mark */
+ int lp_mintxcredits;
+ /* # router credits */
+ int lp_rtrcredits;
+ /* low water mark */
+ int lp_minrtrcredits;
+ /* alive/dead? */
+ unsigned int lp_alive:1;
+ /* notification outstanding? */
+ unsigned int lp_notify:1;
+ /* outstanding notification for LND? */
+ unsigned int lp_notifylnd:1;
+ /* some thread is handling notification */
+ unsigned int lp_notifying:1;
+ /* SEND event outstanding from ping */
+ unsigned int lp_ping_notsent;
+ /* # times router went dead<->alive */
+ int lp_alive_count;
+ /* bytes queued for sending */
+ long lp_txqnob;
+ /* time of last aliveness news */
+ cfs_time_t lp_timestamp;
+ /* time of last ping attempt */
+ cfs_time_t lp_ping_timestamp;
+ /* != 0 if ping reply expected */
+ cfs_time_t lp_ping_deadline;
+ /* when I was last alive */
+ cfs_time_t lp_last_alive;
+ /* when lp_ni was queried last time */
+ cfs_time_t lp_last_query;
+ /* interface peer is on */
+ lnet_ni_t *lp_ni;
+ lnet_nid_t lp_nid; /* peer's NID */
+ int lp_refcount; /* # refs */
+ 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;
+ struct list_head lp_routes; /* routers on this peer */
+ lnet_rc_data_t *lp_rcd; /* router checker state */
} lnet_peer_t;
+/* 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 */
+ int pt_zombies; /* # zombies to go to deathrow
+ * (and not there yet) */
+ struct list_head pt_deathrow; /* zombie peers */
+ struct list_head *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 {
- struct list_head lr_list; /* chain on net */
- lnet_peer_t *lr_gateway; /* router node */
+ struct list_head lr_list; /* chain on net */
+ struct list_head 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 */
+ 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 list_head lrn_list; /* chain on ln_remote_nets */
- struct list_head lrn_routes; /* routes to me */
- __u32 lrn_net; /* my net number */
- unsigned int lrn_hops; /* how far I am */
+ /* 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;
typedef struct {
- struct list_head rbp_bufs; /* my free buffer pool */
- struct list_head rbp_msgs; /* messages blocking for a buffer */
- int rbp_npages; /* # pages in each buffer */
- int rbp_nbuffers; /* # buffers */
- int rbp_credits; /* # free buffers / blocked messages */
- int rbp_mincredits; /* low water mark */
+ /* my free buffer pool */
+ struct list_head rbp_bufs;
+ /* messages blocking for a buffer */
+ struct list_head rbp_msgs;
+ /* # pages in each buffer */
+ int rbp_npages;
+ /* # buffers */
+ int rbp_nbuffers;
+ /* # free buffers / blocked messages */
+ int rbp_credits;
+ /* low water mark */
+ int rbp_mincredits;
} lnet_rtrbufpool_t;
typedef struct {
- struct list_head rb_list; /* chain on rbp_bufs */
- lnet_rtrbufpool_t *rb_pool; /* owning pool */
- lnet_kiov_t rb_kiov[0]; /* the buffer space */
+ struct list_head rb_list; /* chain on rbp_bufs */
+ lnet_rtrbufpool_t *rb_pool; /* owning pool */
+ 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 */
-
-#define LNET_PROTO_PING_MATCHBITS 0x8000000000000000LL
-#define LNET_PROTO_PING_VERSION 1
-typedef struct {
- __u32 pi_magic;
- __u32 pi_version;
- lnet_pid_t pi_pid;
- __u32 pi_nnids;
- lnet_nid_t pi_nid[0];
-} WIRE_ATTR lnet_ping_info_t;
+#define LNET_TINY_BUF_IDX 0
+#define LNET_SMALL_BUF_IDX 1
+#define LNET_LARGE_BUF_IDX 2
+
+/* # different router buffer pools */
+#define LNET_NRBPOOLS (LNET_LARGE_BUF_IDX + 1)
+
+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)
-typedef struct {
- struct list_head ptl_ml; /* match list */
- struct list_head 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? */
-
- struct list_head ln_lnds; /* registered LNDs */
-
+#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;
+ 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];
+ struct list_head *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__
- spinlock_t ln_lock;
- cfs_waitq_t ln_waitq;
- struct semaphore ln_api_mutex;
- struct semaphore 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 */
+ struct list_head ptl_msg_stealing;
+ /* messages blocking for MD */
+ struct list_head 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 */
-
- struct list_head ln_nis; /* LND instances */
- lnet_ni_t *ln_loni; /* the loopback NI */
- lnet_ni_t *ln_eqwaitni; /* NI to wait for events in */
- struct list_head ln_zombie_nis; /* dying LND instances */
- int ln_nzombie_nis; /* # of NIs to wait for */
-
- struct list_head ln_remote_nets; /* remote networks with routes to them */
- __u64 ln_remote_nets_version; /* validity stamp */
-
- struct list_head ln_routers; /* list of all known routers */
- __u64 ln_routers_version; /* validity stamp */
-
- struct list_head *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 */
- struct list_head *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 */
+ struct list_head rec_active; /* active resource list */
+ struct list_head *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 */
+ struct list_head msc_finalizing;
+ struct list_head 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 */
- struct list_head 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 */
+ wait_queue_head_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
- struct list_head 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 */
+ struct list_head ln_test_peers;
+
+ struct list_head ln_nis; /* LND instances */
+ /* NIs bond on specific CPT(s) */
+ struct list_head ln_nis_cpt;
+ /* dying LND instances */
+ struct list_head 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 */
+ struct list_head *ln_remote_nets_hash;
+ /* validity stamp */
+ __u64 ln_remote_nets_version;
+ /* list of all known routers */
+ struct list_head 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 */
+ struct list_head ln_rcd_deathrow;
+ /* rcd ready for free */
+ struct list_head ln_rcd_zombie;
#ifdef __KERNEL__
- struct semaphore 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;
+ /* 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
- struct list_head ln_active_msgs;
- struct list_head ln_active_mds;
- struct list_head 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 */
+ struct list_head ln_lnds;
+
+ /* 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;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff