X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lnet%2Fklnds%2Fo2iblnd%2Fo2iblnd.h;h=c7a4f8c7e9ce2c5b13332b5a8b45c770f91e4418;hb=b43a6b1800265608cfa18159d4d0d006a1c23015;hp=9122f2a08788c52475c9e3cb4000a79079d3ec30;hpb=b633081453569e8b332b41c2cfceff93d3ab9704;p=fs%2Flustre-release.git diff --git a/lnet/klnds/o2iblnd/o2iblnd.h b/lnet/klnds/o2iblnd/o2iblnd.h index 9122f2a..c7a4f8c 100644 --- a/lnet/klnds/o2iblnd/o2iblnd.h +++ b/lnet/klnds/o2iblnd/o2iblnd.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) 2007, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. + * + * Copyright (c) 2011, Whamcloud, Inc. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -38,9 +38,6 @@ * Author: Eric Barton */ -#ifndef EXPORT_SYMTAB -# define EXPORT_SYMTAB -#endif #ifndef AUTOCONF_INCLUDED #include #endif @@ -77,27 +74,21 @@ #include #include -#if !HAVE_GFP_T -typedef int gfp_t; -#endif - #include #include #include #include -/* tunables fixed at compile time */ -#ifdef CONFIG_SMP -# define IBLND_N_SCHED cfs_num_online_cpus() /* # schedulers */ -#else -# define IBLND_N_SCHED 1 /* # schedulers */ -#endif +#define IBLND_PEER_HASH_SIZE 101 /* # peer lists */ +/* # scheduler loops before reschedule */ +#define IBLND_RESCHED 100 -#define IBLND_PEER_HASH_SIZE 101 /* # peer lists */ -#define IBLND_RESCHED 100 /* # scheduler loops before reschedule */ +#define IBLND_N_SCHED 2 +#define IBLND_N_SCHED_HIGH 4 typedef struct { + int *kib_dev_failover; /* HCA failover */ unsigned int *kib_service; /* IB service number */ int *kib_min_reconnect_interval; /* first failed connection retry... */ int *kib_max_reconnect_interval; /* ...exponentially increasing to this */ @@ -124,6 +115,10 @@ typedef struct #if defined(CONFIG_SYSCTL) && !CFS_SYSFS_MODULE_PARM cfs_sysctl_table_header_t *kib_sysctl; /* sysctl interface */ #endif + int *kib_require_priv_port;/* accept only privileged ports */ + int *kib_use_priv_port; /* use privileged port for active connect */ + /* # threads on each CPT */ + int *kib_nscheds; } kib_tunables_t; extern kib_tunables_t kiblnd_tunables; @@ -141,6 +136,12 @@ extern kib_tunables_t kiblnd_tunables; IBLND_CREDIT_HIGHWATER_V1 : \ *kiblnd_tunables.kib_peercredits_hiw) /* when eagerly to return credits */ +#ifdef HAVE_RDMA_CREATE_ID_4ARG +#define kiblnd_rdma_create_id(cb, dev, ps, qpt) rdma_create_id(cb, dev, ps, qpt) +#else +#define kiblnd_rdma_create_id(cb, dev, ps, qpt) rdma_create_id(cb, dev, ps) +#endif + static inline int kiblnd_concurrent_sends_v1(void) { @@ -170,6 +171,12 @@ kiblnd_concurrent_sends_v1(void) /************************/ /* derived constants... */ +/* Pools (shared by connections on each CPT) */ +/* These pools can grow at runtime, so don't need give a very large value */ +#define IBLND_TX_POOL 256 +#define IBLND_PMR_POOL 256 +#define IBLND_FMR_POOL 256 +#define IBLND_FMR_POOL_FLUSH 192 /* TX messages (shared by all connections) */ #define IBLND_TX_MSGS() (*kiblnd_tunables.kib_ntx) @@ -184,30 +191,55 @@ kiblnd_concurrent_sends_v1(void) #define IBLND_SEND_WRS(v) ((IBLND_RDMA_FRAGS(v) + 1) * IBLND_CONCURRENT_SENDS(v)) #define IBLND_CQ_ENTRIES(v) (IBLND_RECV_WRS(v) + IBLND_SEND_WRS(v)) +struct kib_hca_dev; + +/* o2iblnd can run over aliased interface */ +#ifdef IFALIASZ +#define KIB_IFNAME_SIZE IFALIASZ +#else +#define KIB_IFNAME_SIZE 256 +#endif + typedef struct { cfs_list_t ibd_list; /* chain on kib_devs */ + cfs_list_t ibd_fail_list; /* chain on kib_failed_devs */ __u32 ibd_ifip; /* IPoIB interface IP */ - char ibd_ifname[32]; /* IPoIB interface name */ + /** IPoIB interface name */ + char ibd_ifname[KIB_IFNAME_SIZE]; int ibd_nnets; /* # nets extant */ - struct rdma_cm_id *ibd_cmid; /* IB listener (bound to 1 device) */ - struct ib_pd *ibd_pd; /* PD for the device */ - int ibd_page_shift; /* page shift of current HCA */ - int ibd_page_size; /* page size of current HCA */ - __u64 ibd_page_mask; /* page mask of current HCA */ - int ibd_mr_shift; /* bits shift of max MR size */ - __u64 ibd_mr_size; /* size of MR */ - - int ibd_nmrs; /* # of global MRs */ - struct ib_mr **ibd_mrs; /* MR for non RDMA I/O */ + cfs_time_t ibd_next_failover; + int ibd_failed_failover; /* # failover failures */ + unsigned int ibd_failover; /* failover in progress */ + unsigned int ibd_can_failover; /* IPoIB interface is a bonding master */ + cfs_list_t ibd_nets; + struct kib_hca_dev *ibd_hdev; } kib_dev_t; -#define IBLND_POOL_DEADLINE 300 /* # of seconds to keep pool alive */ +typedef struct kib_hca_dev +{ + struct rdma_cm_id *ibh_cmid; /* listener cmid */ + struct ib_device *ibh_ibdev; /* IB device */ + int ibh_page_shift; /* page shift of current HCA */ + int ibh_page_size; /* page size of current HCA */ + __u64 ibh_page_mask; /* page mask of current HCA */ + int ibh_mr_shift; /* bits shift of max MR size */ + __u64 ibh_mr_size; /* size of MR */ + int ibh_nmrs; /* # of global MRs */ + struct ib_mr **ibh_mrs; /* global MR */ + struct ib_pd *ibh_pd; /* PD */ + kib_dev_t *ibh_dev; /* owner */ + cfs_atomic_t ibh_ref; /* refcount */ +} kib_hca_dev_t; + +/** # of seconds to keep pool alive */ +#define IBLND_POOL_DEADLINE 300 +/** # of seconds to retry if allocation failed */ +#define IBLND_POOL_RETRY 1 typedef struct { - struct ib_device *ibp_device; /* device for mapping */ int ibp_npages; /* # pages */ struct page *ibp_pages[0]; /* page array */ } kib_pages_t; @@ -226,12 +258,11 @@ typedef struct { struct kib_pool; struct kib_poolset; -typedef int (*kib_ps_pool_create_t)(struct kib_poolset *ps, int inc, struct kib_pool **pp_po); +typedef int (*kib_ps_pool_create_t)(struct kib_poolset *ps, + int inc, struct kib_pool **pp_po); typedef void (*kib_ps_pool_destroy_t)(struct kib_pool *po); -typedef void (*kib_ps_node_init_t)(struct kib_pool *po, - cfs_list_t *node); -typedef void (*kib_ps_node_fini_t)(struct kib_pool *po, - cfs_list_t *node); +typedef void (*kib_ps_node_init_t)(struct kib_pool *po, cfs_list_t *node); +typedef void (*kib_ps_node_fini_t)(struct kib_pool *po, cfs_list_t *node); struct kib_net; @@ -243,9 +274,11 @@ typedef struct kib_poolset struct kib_net *ps_net; /* network it belongs to */ char ps_name[IBLND_POOL_NAME_LEN]; /* pool set name */ cfs_list_t ps_pool_list; /* list of pools */ + cfs_list_t ps_failed_pool_list; /* failed pool list */ cfs_time_t ps_next_retry; /* time stamp for retry if failed to allocate */ int ps_increasing; /* is allocating new pool */ int ps_pool_size; /* new pool size */ + int ps_cpt; /* CPT id */ kib_ps_pool_create_t ps_pool_create; /* create a new pool */ kib_ps_pool_destroy_t ps_pool_destroy; /* destroy a pool */ @@ -260,6 +293,7 @@ typedef struct kib_pool kib_poolset_t *po_owner; /* pool_set of this pool */ cfs_time_t po_deadline; /* deadline of this pool */ int po_allocated; /* # of elements in use */ + int po_failed; /* pool is created on failed HCA */ int po_size; /* # of pre-allocated elements */ } kib_pool_t; @@ -270,6 +304,7 @@ typedef struct { typedef struct { kib_pool_t tpo_pool; /* pool */ + struct kib_hca_dev *tpo_hdev; /* device for this pool */ struct kib_tx *tpo_tx_descs; /* all the tx descriptors */ kib_pages_t *tpo_tx_pages; /* premapped tx msg pages */ } kib_tx_pool_t; @@ -279,6 +314,7 @@ typedef struct { } kib_pmr_poolset_t; typedef struct kib_pmr_pool { + struct kib_hca_dev *ppo_hdev; /* device for this pool */ kib_pool_t ppo_pool; /* pool */ } kib_pmr_pool_t; @@ -287,17 +323,25 @@ typedef struct cfs_spinlock_t fps_lock; /* serialize */ struct kib_net *fps_net; /* IB network */ cfs_list_t fps_pool_list; /* FMR pool list */ + cfs_list_t fps_failed_pool_list; /* FMR pool list */ __u64 fps_version; /* validity stamp */ - int fps_increasing; /* is allocating new pool */ - cfs_time_t fps_next_retry; /* time stamp for retry if failed to allocate */ + int fps_cpt; /* CPT id */ + int fps_pool_size; + int fps_flush_trigger; + /* is allocating new pool */ + int fps_increasing; + /* time stamp for retry if failed to allocate */ + cfs_time_t fps_next_retry; } kib_fmr_poolset_t; typedef struct { cfs_list_t fpo_list; /* chain on pool list */ + struct kib_hca_dev *fpo_hdev; /* device for this pool */ kib_fmr_poolset_t *fpo_owner; /* owner of this pool */ struct ib_fmr_pool *fpo_fmr_pool; /* IB FMR pool */ cfs_time_t fpo_deadline; /* deadline of this pool */ + int fpo_failed; /* fmr pool is failed */ int fpo_map_count; /* # of mapped FMR */ } kib_fmr_pool_t; @@ -308,44 +352,68 @@ typedef struct { typedef struct kib_net { + cfs_list_t ibn_list; /* chain on kib_dev_t::ibd_nets */ __u64 ibn_incarnation; /* my epoch */ int ibn_init; /* initialisation state */ int ibn_shutdown; /* shutting down? */ - unsigned int ibn_with_fmr:1; /* FMR? */ - unsigned int ibn_with_pmr:1; /* PMR? */ - cfs_atomic_t ibn_npeers; /* # peers extant */ - cfs_atomic_t ibn_nconns; /* # connections extant */ + cfs_atomic_t ibn_npeers; /* # peers extant */ + cfs_atomic_t ibn_nconns; /* # connections extant */ - kib_tx_poolset_t ibn_tx_ps; /* tx pool-set */ - kib_fmr_poolset_t ibn_fmr_ps; /* fmr pool-set */ - kib_pmr_poolset_t ibn_pmr_ps; /* pmr pool-set */ + kib_tx_poolset_t **ibn_tx_ps; /* tx pool-set */ + kib_fmr_poolset_t **ibn_fmr_ps; /* fmr pool-set */ + kib_pmr_poolset_t **ibn_pmr_ps; /* pmr pool-set */ - kib_dev_t *ibn_dev; /* underlying IB device */ + kib_dev_t *ibn_dev; /* underlying IB device */ } kib_net_t; +#define KIB_THREAD_SHIFT 16 +#define KIB_THREAD_ID(cpt, tid) ((cpt) << KIB_THREAD_SHIFT | (tid)) +#define KIB_THREAD_CPT(id) ((id) >> KIB_THREAD_SHIFT) +#define KIB_THREAD_TID(id) ((id) & ((1UL << KIB_THREAD_SHIFT) - 1)) + +struct kib_sched_info { + /* serialise */ + cfs_spinlock_t ibs_lock; + /* schedulers sleep here */ + cfs_waitq_t ibs_waitq; + /* conns to check for rx completions */ + cfs_list_t ibs_conns; + /* number of scheduler threads */ + int ibs_nthreads; + /* max allowed scheduler threads */ + int ibs_nthreads_max; + int ibs_cpt; /* CPT id */ +}; + typedef struct { - int kib_init; /* initialisation state */ - int kib_shutdown; /* shut down? */ - cfs_list_t kib_devs; /* IB devices extant */ - cfs_atomic_t kib_nthreads; /* # live threads */ - cfs_rwlock_t kib_global_lock; /* stabilize net/dev/peer/conn ops */ - - cfs_list_t *kib_peers; /* hash table of all my known peers */ - int kib_peer_hash_size;/* size of kib_peers */ - - void *kib_connd; /* the connd task (serialisation assertions) */ - cfs_list_t kib_connd_conns; /* connections to setup/teardown */ - cfs_list_t kib_connd_zombies;/* connections with zero refcount */ - cfs_waitq_t kib_connd_waitq; /* connection daemon sleeps here */ - cfs_spinlock_t kib_connd_lock; /* serialise */ - - cfs_waitq_t kib_sched_waitq; /* schedulers sleep here */ - cfs_list_t kib_sched_conns; /* conns to check for rx completions */ - cfs_spinlock_t kib_sched_lock; /* serialise */ - - struct ib_qp_attr kib_error_qpa; /* QP->ERROR */ + int kib_init; /* initialisation state */ + int kib_shutdown; /* shut down? */ + cfs_list_t kib_devs; /* IB devices extant */ + /* list head of failed devices */ + cfs_list_t kib_failed_devs; + /* schedulers sleep here */ + cfs_waitq_t kib_failover_waitq; + cfs_atomic_t kib_nthreads; /* # live threads */ + /* stabilize net/dev/peer/conn ops */ + cfs_rwlock_t kib_global_lock; + /* hash table of all my known peers */ + cfs_list_t *kib_peers; + /* size of kib_peers */ + int kib_peer_hash_size; + /* the connd task (serialisation assertions) */ + void *kib_connd; + /* connections to setup/teardown */ + cfs_list_t kib_connd_conns; + /* connections with zero refcount */ + cfs_list_t kib_connd_zombies; + /* connection daemon sleeps here */ + cfs_waitq_t kib_connd_waitq; + cfs_spinlock_t kib_connd_lock; /* serialise */ + struct ib_qp_attr kib_error_qpa; /* QP->ERROR */ + /* percpt data for schedulers */ + struct kib_sched_info **kib_scheds; } kib_data_t; #define IBLND_INIT_NOTHING 0 @@ -412,7 +480,7 @@ typedef struct typedef struct { /* First 2 fields fixed FOR ALL TIME */ - __u32 ibm_magic; /* I'm an openibnal message */ + __u32 ibm_magic; /* I'm an ibnal message */ __u16 ibm_version; /* this is my version number */ __u8 ibm_type; /* msg type */ @@ -528,7 +596,9 @@ typedef struct kib_connvars typedef struct kib_conn { + struct kib_sched_info *ibc_sched; /* scheduler information */ struct kib_peer *ibc_peer; /* owning peer */ + kib_hca_dev_t *ibc_hdev; /* HCA bound on */ cfs_list_t ibc_list; /* stash on peer's conn list */ cfs_list_t ibc_sched_list; /* schedule for attention */ __u16 ibc_version; /* version of connection */ @@ -544,8 +614,14 @@ typedef struct kib_conn int ibc_nrx:16; /* receive buffers owned */ int ibc_scheduled:1; /* scheduled for attention */ int ibc_ready:1; /* CQ callback fired */ - unsigned long ibc_last_send; /* time of last send */ - cfs_list_t ibc_early_rxs; /* rxs completed before ESTABLISHED */ + /* time of last send */ + unsigned long ibc_last_send; + /** link chain for kiblnd_check_conns only */ + cfs_list_t ibc_connd_list; + /** rxs completed before ESTABLISHED */ + cfs_list_t ibc_early_rxs; + /** IBLND_MSG_NOOPs for IBLND_MSG_VERSION_1 */ + cfs_list_t ibc_tx_noops; cfs_list_t ibc_tx_queue; /* sends that need a credit */ cfs_list_t ibc_tx_queue_nocred;/* sends that don't need a credit */ cfs_list_t ibc_tx_queue_rsrvd; /* sends that need to reserve an ACK/DONE msg */ @@ -560,7 +636,7 @@ typedef struct kib_conn kib_connvars_t *ibc_connvars; /* in-progress connection state */ } kib_conn_t; -#define IBLND_CONN_INIT 0 /* being intialised */ +#define IBLND_CONN_INIT 0 /* being initialised */ #define IBLND_CONN_ACTIVE_CONNECT 1 /* active sending req */ #define IBLND_CONN_PASSIVE_WAIT 2 /* passive waiting for rtu */ #define IBLND_CONN_ESTABLISHED 3 /* connection established */ @@ -585,11 +661,42 @@ typedef struct kib_peer extern kib_data_t kiblnd_data; +extern void kiblnd_hdev_destroy(kib_hca_dev_t *hdev); + +static inline void +kiblnd_hdev_addref_locked(kib_hca_dev_t *hdev) +{ + LASSERT (cfs_atomic_read(&hdev->ibh_ref) > 0); + cfs_atomic_inc(&hdev->ibh_ref); +} + +static inline void +kiblnd_hdev_decref(kib_hca_dev_t *hdev) +{ + LASSERT (cfs_atomic_read(&hdev->ibh_ref) > 0); + if (cfs_atomic_dec_and_test(&hdev->ibh_ref)) + kiblnd_hdev_destroy(hdev); +} + +static inline int +kiblnd_dev_can_failover(kib_dev_t *dev) +{ + if (!cfs_list_empty(&dev->ibd_fail_list)) /* already scheduled */ + return 0; + + if (*kiblnd_tunables.kib_dev_failover == 0) /* disabled */ + return 0; + + if (*kiblnd_tunables.kib_dev_failover > 1) /* force failover */ + return 1; + + return dev->ibd_can_failover; +} + #define kiblnd_conn_addref(conn) \ do { \ CDEBUG(D_NET, "conn[%p] (%d)++\n", \ (conn), cfs_atomic_read(&(conn)->ibc_refcount)); \ - LASSERT(cfs_atomic_read(&(conn)->ibc_refcount) > 0); \ cfs_atomic_inc(&(conn)->ibc_refcount); \ } while (0) @@ -599,7 +706,7 @@ do { \ \ CDEBUG(D_NET, "conn[%p] (%d)--\n", \ (conn), cfs_atomic_read(&(conn)->ibc_refcount)); \ - LASSERT(cfs_atomic_read(&(conn)->ibc_refcount) > 0); \ + LASSERT_ATOMIC_POS(&(conn)->ibc_refcount); \ if (cfs_atomic_dec_and_test(&(conn)->ibc_refcount)) { \ cfs_spin_lock_irqsave(&kiblnd_data.kib_connd_lock, flags); \ cfs_list_add_tail(&(conn)->ibc_list, \ @@ -614,7 +721,6 @@ do { \ CDEBUG(D_NET, "peer[%p] -> %s (%d)++\n", \ (peer), libcfs_nid2str((peer)->ibp_nid), \ cfs_atomic_read (&(peer)->ibp_refcount)); \ - LASSERT(cfs_atomic_read(&(peer)->ibp_refcount) > 0); \ cfs_atomic_inc(&(peer)->ibp_refcount); \ } while (0) @@ -623,7 +729,7 @@ do { \ CDEBUG(D_NET, "peer[%p] -> %s (%d)--\n", \ (peer), libcfs_nid2str((peer)->ibp_nid), \ cfs_atomic_read (&(peer)->ibp_refcount)); \ - LASSERT(cfs_atomic_read(&(peer)->ibp_refcount) > 0); \ + LASSERT_ATOMIC_POS(&(peer)->ibp_refcount); \ if (cfs_atomic_dec_and_test(&(peer)->ibp_refcount)) \ kiblnd_destroy_peer(peer); \ } while (0) @@ -662,7 +768,7 @@ kiblnd_send_keepalive(kib_conn_t *conn) } static inline int -kiblnd_send_noop(kib_conn_t *conn) +kiblnd_need_noop(kib_conn_t *conn) { LASSERT (conn->ibc_state >= IBLND_CONN_ESTABLISHED); @@ -671,15 +777,26 @@ kiblnd_send_noop(kib_conn_t *conn) !kiblnd_send_keepalive(conn)) return 0; /* No need to send NOOP */ - if (!cfs_list_empty(&conn->ibc_tx_queue_nocred)) - return 0; /* NOOP can be piggybacked */ + if (IBLND_OOB_CAPABLE(conn->ibc_version)) { + if (!cfs_list_empty(&conn->ibc_tx_queue_nocred)) + return 0; /* NOOP can be piggybacked */ + + /* No tx to piggyback NOOP onto or no credit to send a tx */ + return (cfs_list_empty(&conn->ibc_tx_queue) || + conn->ibc_credits == 0); + } + + if (!cfs_list_empty(&conn->ibc_tx_noops) || /* NOOP already queued */ + !cfs_list_empty(&conn->ibc_tx_queue_nocred) || /* piggyback NOOP */ + conn->ibc_credits == 0) /* no credit */ + return 0; - if (!IBLND_OOB_CAPABLE(conn->ibc_version)) - /* can't piggyback? */ - return cfs_list_empty(&conn->ibc_tx_queue); + if (conn->ibc_credits == 1 && /* last credit reserved for */ + conn->ibc_outstanding_credits == 0) /* giving back credits */ + return 0; /* No tx to piggyback NOOP onto or no credit to send a tx */ - return (cfs_list_empty(&conn->ibc_tx_queue) || conn->ibc_credits == 0); + return (cfs_list_empty(&conn->ibc_tx_queue) || conn->ibc_credits == 1); } static inline void @@ -922,9 +1039,9 @@ static inline unsigned int kiblnd_sg_dma_len(struct ib_device *dev, #endif -struct ib_mr *kiblnd_find_rd_dma_mr(kib_net_t *net, +struct ib_mr *kiblnd_find_rd_dma_mr(kib_hca_dev_t *hdev, kib_rdma_desc_t *rd); -struct ib_mr *kiblnd_find_dma_mr(kib_net_t *net, +struct ib_mr *kiblnd_find_dma_mr(kib_hca_dev_t *hdev, __u64 addr, __u64 size); void kiblnd_map_rx_descs(kib_conn_t *conn); void kiblnd_unmap_rx_descs(kib_conn_t *conn); @@ -938,8 +1055,8 @@ int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages, int npages, __u64 iov, kib_fmr_t *fmr); void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status); -int kiblnd_pmr_pool_map(kib_pmr_poolset_t *pps, kib_rdma_desc_t *rd, - __u64 *iova, kib_phys_mr_t **pp_pmr); +int kiblnd_pmr_pool_map(kib_pmr_poolset_t *pps, kib_hca_dev_t *hdev, + kib_rdma_desc_t *rd, __u64 *iova, kib_phys_mr_t **pp_pmr); void kiblnd_pmr_pool_unmap(kib_phys_mr_t *pmr); int kiblnd_startup (lnet_ni_t *ni); @@ -953,14 +1070,16 @@ void kiblnd_tunables_fini(void); int kiblnd_connd (void *arg); int kiblnd_scheduler(void *arg); int kiblnd_thread_start (int (*fn)(void *arg), void *arg); +int kiblnd_failover_thread (void *arg); -int kiblnd_alloc_pages (kib_pages_t **pp, int npages); +int kiblnd_alloc_pages(kib_pages_t **pp, int cpt, int npages); void kiblnd_free_pages (kib_pages_t *p); int kiblnd_cm_callback(struct rdma_cm_id *cmid, struct rdma_cm_event *event); int kiblnd_translate_mtu(int value); +int kiblnd_dev_failover(kib_dev_t *dev); int kiblnd_create_peer (lnet_ni_t *ni, kib_peer_t **peerp, lnet_nid_t nid); void kiblnd_destroy_peer (kib_peer_t *peer); void kiblnd_destroy_dev (kib_dev_t *dev);