X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lnet%2Finclude%2Flnet%2Flib-lnet.h;h=73a4d68db318cf71a94ee1c8ea03030c525d4762;hp=3f7489d2e9957b0333e09caaf5c48fb5a005986d;hb=339c7b2b784a528f41c432e9b90285d3445b7536;hpb=facf5086667874c405c9ef6ce7f8f737868ffefd;ds=sidebyside diff --git a/lnet/include/lnet/lib-lnet.h b/lnet/include/lnet/lib-lnet.h index 3f7489d..73a4d68 100644 --- a/lnet/include/lnet/lib-lnet.h +++ b/lnet/include/lnet/lib-lnet.h @@ -26,6 +26,8 @@ /* * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. + * + * Copyright (c) 2012, 2014, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -39,23 +41,56 @@ #ifndef __LNET_LIB_LNET_H__ #define __LNET_LIB_LNET_H__ -#if defined(__linux__) -#include -#elif defined(__APPLE__) -#include -#elif defined(__WINNT__) -#include -#else -#error Unsupported Operating System -#endif +#define LNET_ROUTER #include #include #include #include +#include extern lnet_t the_lnet; /* THE network */ +#if !defined(__KERNEL__) || defined(LNET_USE_LIB_FREELIST) +/* 1 CPT, simplify implementation... */ +# define LNET_CPT_MAX_BITS 0 + +#else /* KERNEL and no freelist */ + +# if (BITS_PER_LONG == 32) +/* 2 CPTs, allowing more CPTs might make us under memory pressure */ +# define LNET_CPT_MAX_BITS 1 + +# else /* 64-bit system */ +/* + * 256 CPTs for thousands of CPUs, allowing more CPTs might make us + * under risk of consuming all lh_cookie. + */ +# define LNET_CPT_MAX_BITS 8 +# endif /* BITS_PER_LONG == 32 */ +#endif + +/* max allowed CPT number */ +#define LNET_CPT_MAX (1 << LNET_CPT_MAX_BITS) + +#define LNET_CPT_NUMBER (the_lnet.ln_cpt_number) +#define LNET_CPT_BITS (the_lnet.ln_cpt_bits) +#define LNET_CPT_MASK ((1ULL << LNET_CPT_BITS) - 1) + +/** exclusive lock */ +#define LNET_LOCK_EX CFS_PERCPT_LOCK_EX + +static inline int lnet_is_route_alive(lnet_route_t *route) +{ + if (!route->lr_gateway->lp_alive) + return 0; /* gateway is down */ + if ((route->lr_gateway->lp_ping_feats & + LNET_PING_FEAT_NI_STATUS) == 0) + return 1; /* no NI status, assume it's alive */ + /* has NI status, check # down NIs */ + return route->lr_downis == 0; +} + static inline int lnet_is_wire_handle_none (lnet_handle_wire_t *wh) { return (wh->wh_interface_cookie == LNET_WIRE_HANDLE_COOKIE_NONE && @@ -86,19 +121,77 @@ static inline int lnet_md_unlinkable (lnet_libmd_t *md) lnet_md_exhausted(md)); } -static inline unsigned int -lnet_match_to_hash(lnet_process_id_t id, __u64 mbits) +#define lnet_cpt_table() (the_lnet.ln_cpt_table) +#define lnet_cpt_current() cfs_cpt_current(the_lnet.ln_cpt_table, 1) + +static inline int +lnet_cpt_of_cookie(__u64 cookie) +{ + unsigned int cpt = (cookie >> LNET_COOKIE_TYPE_BITS) & LNET_CPT_MASK; + + /* LNET_CPT_NUMBER doesn't have to be power2, which means we can + * get illegal cpt from it's invalid cookie */ + return cpt < LNET_CPT_NUMBER ? cpt : cpt % LNET_CPT_NUMBER; +} + +static inline void +lnet_res_lock(int cpt) +{ + cfs_percpt_lock(the_lnet.ln_res_lock, cpt); +} + +static inline void +lnet_res_unlock(int cpt) +{ + cfs_percpt_unlock(the_lnet.ln_res_lock, cpt); +} + +static inline int +lnet_res_lock_current(void) +{ + int cpt = lnet_cpt_current(); + + lnet_res_lock(cpt); + return cpt; +} + +static inline void +lnet_net_lock(int cpt) +{ + cfs_percpt_lock(the_lnet.ln_net_lock, cpt); +} + +static inline void +lnet_net_unlock(int cpt) +{ + cfs_percpt_unlock(the_lnet.ln_net_lock, cpt); +} + +static inline int +lnet_net_lock_current(void) { - mbits += id.nid + id.pid; - return cfs_hash_long((unsigned long)mbits, LNET_PORTAL_HASH_BITS); + int cpt = lnet_cpt_current(); + + lnet_net_lock(cpt); + return cpt; } +#define LNET_LOCK() lnet_net_lock(LNET_LOCK_EX) +#define LNET_UNLOCK() lnet_net_unlock(LNET_LOCK_EX) + #ifdef __KERNEL__ -#define LNET_LOCK() cfs_spin_lock(&the_lnet.ln_lock) -#define LNET_UNLOCK() cfs_spin_unlock(&the_lnet.ln_lock) -#define LNET_MUTEX_LOCK(m) cfs_mutex_lock(m) -#define LNET_MUTEX_UNLOCK(m) cfs_mutex_unlock(m) -#else + +#define lnet_ptl_lock(ptl) spin_lock(&(ptl)->ptl_lock) +#define lnet_ptl_unlock(ptl) spin_unlock(&(ptl)->ptl_lock) +#define lnet_eq_wait_lock() spin_lock(&the_lnet.ln_eq_wait_lock) +#define lnet_eq_wait_unlock() spin_unlock(&the_lnet.ln_eq_wait_lock) +#define lnet_ni_lock(ni) spin_lock(&(ni)->ni_lock) +#define lnet_ni_unlock(ni) spin_unlock(&(ni)->ni_lock) +#define LNET_MUTEX_LOCK(m) mutex_lock(m) +#define LNET_MUTEX_UNLOCK(m) mutex_unlock(m) + +#else /* !__KERNEL__ */ + # ifndef HAVE_LIBPTHREAD #define LNET_SINGLE_THREADED_LOCK(l) \ do { \ @@ -112,17 +205,40 @@ do { \ (l) = 0; \ } while (0) -#define LNET_LOCK() LNET_SINGLE_THREADED_LOCK(the_lnet.ln_lock) -#define LNET_UNLOCK() LNET_SINGLE_THREADED_UNLOCK(the_lnet.ln_lock) -#define LNET_MUTEX_LOCK(m) LNET_SINGLE_THREADED_LOCK(*(m)) -#define LNET_MUTEX_UNLOCK(m) LNET_SINGLE_THREADED_UNLOCK(*(m)) -# else -#define LNET_LOCK() pthread_mutex_lock(&the_lnet.ln_lock) -#define LNET_UNLOCK() pthread_mutex_unlock(&the_lnet.ln_lock) -#define LNET_MUTEX_LOCK(m) pthread_mutex_lock(m) -#define LNET_MUTEX_UNLOCK(m) pthread_mutex_unlock(m) -# endif -#endif +#define LNET_MUTEX_LOCK(m) LNET_SINGLE_THREADED_LOCK(*(m)) +#define LNET_MUTEX_UNLOCK(m) LNET_SINGLE_THREADED_UNLOCK(*(m)) + +#define lnet_ptl_lock(ptl) \ + LNET_SINGLE_THREADED_LOCK((ptl)->ptl_lock) +#define lnet_ptl_unlock(ptl) \ + LNET_SINGLE_THREADED_UNLOCK((ptl)->ptl_lock) + +#define lnet_eq_wait_lock() \ + LNET_SINGLE_THREADED_LOCK(the_lnet.ln_eq_wait_lock) +#define lnet_eq_wait_unlock() \ + LNET_SINGLE_THREADED_UNLOCK(the_lnet.ln_eq_wait_lock) + +#define lnet_ni_lock(ni) \ + LNET_SINGLE_THREADED_LOCK((ni)->ni_lock) +#define lnet_ni_unlock(ni) \ + LNET_SINGLE_THREADED_UNLOCK((ni)->ni_lock) + +# else /* HAVE_LIBPTHREAD */ + +#define LNET_MUTEX_LOCK(m) pthread_mutex_lock(m) +#define LNET_MUTEX_UNLOCK(m) pthread_mutex_unlock(m) + +#define lnet_ptl_lock(ptl) pthread_mutex_lock(&(ptl)->ptl_lock) +#define lnet_ptl_unlock(ptl) pthread_mutex_unlock(&(ptl)->ptl_lock) + +#define lnet_eq_wait_lock() pthread_mutex_lock(&the_lnet.ln_eq_wait_lock) +#define lnet_eq_wait_unlock() pthread_mutex_unlock(&the_lnet.ln_eq_wait_lock) + +#define lnet_ni_lock(ni) pthread_mutex_lock(&(ni)->ni_lock) +#define lnet_ni_unlock(ni) pthread_mutex_unlock(&(ni)->ni_lock) + +# endif /* HAVE_LIBPTHREAD */ +#endif /* __KERNEL__ */ #define MAX_PORTALS 64 @@ -141,24 +257,24 @@ void lnet_freelist_fini(lnet_freelist_t *fl); static inline void * lnet_freelist_alloc (lnet_freelist_t *fl) { - /* ALWAYS called with liblock held */ - lnet_freeobj_t *o; + /* ALWAYS called with liblock held */ + lnet_freeobj_t *o; - if (cfs_list_empty (&fl->fl_list)) - return (NULL); + if (list_empty(&fl->fl_list)) + return NULL; - o = cfs_list_entry (fl->fl_list.next, lnet_freeobj_t, fo_list); - cfs_list_del (&o->fo_list); - return ((void *)&o->fo_contents); + o = list_entry(fl->fl_list.next, lnet_freeobj_t, fo_list); + list_del(&o->fo_list); + return (void *)&o->fo_contents; } static inline void lnet_freelist_free (lnet_freelist_t *fl, void *obj) { - /* ALWAYS called with liblock held */ - lnet_freeobj_t *o = cfs_list_entry (obj, lnet_freeobj_t, fo_contents); + /* ALWAYS called with liblock held */ + lnet_freeobj_t *o = list_entry(obj, lnet_freeobj_t, fo_contents); - cfs_list_add (&o->fo_list, &fl->fl_list); + list_add(&o->fo_list, &fl->fl_list); } @@ -169,9 +285,11 @@ lnet_eq_alloc (void) struct lnet_res_container *rec = &the_lnet.ln_eq_container; lnet_eq_t *eq; - LNET_LOCK(); + LASSERT(LNET_CPT_NUMBER == 1); + + lnet_res_lock(0); eq = (lnet_eq_t *)lnet_freelist_alloc(&rec->rec_freelist); - LNET_UNLOCK(); + lnet_res_unlock(0); return eq; } @@ -182,30 +300,33 @@ lnet_eq_free_locked(lnet_eq_t *eq) /* ALWAYS called with resource lock held */ struct lnet_res_container *rec = &the_lnet.ln_eq_container; + LASSERT(LNET_CPT_NUMBER == 1); lnet_freelist_free(&rec->rec_freelist, eq); } static inline void lnet_eq_free(lnet_eq_t *eq) { - LNET_LOCK(); + lnet_res_lock(0); lnet_eq_free_locked(eq); - LNET_UNLOCK(); + lnet_res_unlock(0); } static inline lnet_libmd_t * lnet_md_alloc (lnet_md_t *umd) { /* NEVER called with resource lock held */ - struct lnet_res_container *rec = &the_lnet.ln_md_container; + struct lnet_res_container *rec = the_lnet.ln_md_containers[0]; lnet_libmd_t *md; - LNET_LOCK(); + LASSERT(LNET_CPT_NUMBER == 1); + + lnet_res_lock(0); md = (lnet_libmd_t *)lnet_freelist_alloc(&rec->rec_freelist); - LNET_UNLOCK(); + lnet_res_unlock(0); if (md != NULL) - CFS_INIT_LIST_HEAD(&md->md_list); + INIT_LIST_HEAD(&md->md_list); return md; } @@ -214,29 +335,32 @@ static inline void lnet_md_free_locked(lnet_libmd_t *md) { /* ALWAYS called with resource lock held */ - struct lnet_res_container *rec = &the_lnet.ln_md_container; + struct lnet_res_container *rec = the_lnet.ln_md_containers[0]; + LASSERT(LNET_CPT_NUMBER == 1); lnet_freelist_free(&rec->rec_freelist, md); } static inline void lnet_md_free(lnet_libmd_t *md) { - LNET_LOCK(); + lnet_res_lock(0); lnet_md_free_locked(md); - LNET_UNLOCK(); + lnet_res_unlock(0); } static inline lnet_me_t * lnet_me_alloc(void) { /* NEVER called with resource lock held */ - struct lnet_res_container *rec = &the_lnet.ln_me_container; + struct lnet_res_container *rec = the_lnet.ln_me_containers[0]; lnet_me_t *me; - LNET_LOCK(); + LASSERT(LNET_CPT_NUMBER == 1); + + lnet_res_lock(0); me = (lnet_me_t *)lnet_freelist_alloc(&rec->rec_freelist); - LNET_UNLOCK(); + lnet_res_unlock(0); return me; } @@ -245,36 +369,36 @@ static inline void lnet_me_free_locked(lnet_me_t *me) { /* ALWAYS called with resource lock held */ - struct lnet_res_container *rec = &the_lnet.ln_me_container; + struct lnet_res_container *rec = the_lnet.ln_me_containers[0]; + LASSERT(LNET_CPT_NUMBER == 1); lnet_freelist_free(&rec->rec_freelist, me); } static inline void lnet_me_free(lnet_me_t *me) { - LNET_LOCK(); + lnet_res_lock(0); lnet_me_free_locked(me); - LNET_UNLOCK(); + lnet_res_unlock(0); } static inline lnet_msg_t * lnet_msg_alloc (void) { /* NEVER called with network lock held */ - struct lnet_msg_container *msc = &the_lnet.ln_msg_container; + struct lnet_msg_container *msc = the_lnet.ln_msg_containers[0]; lnet_msg_t *msg; - LNET_LOCK(); + LASSERT(LNET_CPT_NUMBER == 1); + + lnet_net_lock(0); msg = (lnet_msg_t *)lnet_freelist_alloc(&msc->msc_freelist); - LNET_UNLOCK(); + lnet_net_unlock(0); if (msg != NULL) { /* NULL pointers, clear flags etc */ memset(msg, 0, sizeof(*msg)); -#ifdef CRAY_XT3 - msg->msg_ev.uid = LNET_UID_ANY; -#endif } return msg; } @@ -283,8 +407,9 @@ static inline void lnet_msg_free_locked(lnet_msg_t *msg) { /* ALWAYS called with network lock held */ - struct lnet_msg_container *msc = &the_lnet.ln_msg_container; + struct lnet_msg_container *msc = the_lnet.ln_msg_containers[0]; + LASSERT(LNET_CPT_NUMBER == 1); LASSERT(!msg->msg_onactivelist); lnet_freelist_free(&msc->msc_freelist, msg); } @@ -292,9 +417,9 @@ lnet_msg_free_locked(lnet_msg_t *msg) static inline void lnet_msg_free (lnet_msg_t *msg) { - LNET_LOCK(); + lnet_net_lock(0); lnet_msg_free_locked(msg); - LNET_UNLOCK(); + lnet_net_unlock(0); } #else /* !LNET_USE_LIB_FREELIST */ @@ -335,14 +460,14 @@ lnet_md_alloc (lnet_md_t *umd) LIBCFS_ALLOC(md, size); - if (md != NULL) { - /* Set here in case of early free */ - md->md_options = umd->options; - md->md_niov = niov; - CFS_INIT_LIST_HEAD(&md->md_list); - } + if (md != NULL) { + /* Set here in case of early free */ + md->md_options = umd->options; + md->md_niov = niov; + INIT_LIST_HEAD(&md->md_list); + } - return (md); + return md; } static inline void @@ -385,12 +510,6 @@ lnet_msg_alloc(void) LIBCFS_ALLOC(msg, sizeof(*msg)); /* no need to zero, LIBCFS_ALLOC does for us */ - -#ifdef CRAY_XT3 - if (msg != NULL) { - msg->msg_ev.uid = LNET_UID_ANY; - } -#endif return (msg); } @@ -417,7 +536,8 @@ static inline void lnet_res_lh_invalidate(lnet_libhandle_t *lh) { /* ALWAYS called with resource lock held */ - cfs_list_del(&lh->lh_hash_chain); + /* NB: cookie is still useful, don't reset it */ + list_del(&lh->lh_hash_chain); } static inline void @@ -455,8 +575,11 @@ lnet_handle2md(lnet_handle_md_t *handle) { /* ALWAYS called with resource lock held */ lnet_libhandle_t *lh; + int cpt; - lh = lnet_res_lh_lookup(&the_lnet.ln_md_container, handle->cookie); + cpt = lnet_cpt_of_cookie(handle->cookie); + lh = lnet_res_lh_lookup(the_lnet.ln_md_containers[cpt], + handle->cookie); if (lh == NULL) return NULL; @@ -468,11 +591,13 @@ lnet_wire_handle2md(lnet_handle_wire_t *wh) { /* ALWAYS called with resource lock held */ lnet_libhandle_t *lh; + int cpt; if (wh->wh_interface_cookie != the_lnet.ln_interface_cookie) return NULL; - lh = lnet_res_lh_lookup(&the_lnet.ln_md_container, + cpt = lnet_cpt_of_cookie(wh->wh_object_cookie); + lh = lnet_res_lh_lookup(the_lnet.ln_md_containers[cpt], wh->wh_object_cookie); if (lh == NULL) return NULL; @@ -491,70 +616,17 @@ lnet_handle2me(lnet_handle_me_t *handle) { /* ALWAYS called with resource lock held */ lnet_libhandle_t *lh; + int cpt; - lh = lnet_res_lh_lookup(&the_lnet.ln_me_container, handle->cookie); + cpt = lnet_cpt_of_cookie(handle->cookie); + lh = lnet_res_lh_lookup(the_lnet.ln_me_containers[cpt], + handle->cookie); if (lh == NULL) return NULL; return lh_entry(lh, lnet_me_t, me_lh); } -static inline int -lnet_portal_is_lazy(lnet_portal_t *ptl) -{ - return !!(ptl->ptl_options & LNET_PTL_LAZY); -} - -static inline int -lnet_portal_is_unique(lnet_portal_t *ptl) -{ - return !!(ptl->ptl_options & LNET_PTL_MATCH_UNIQUE); -} - -static inline int -lnet_portal_is_wildcard(lnet_portal_t *ptl) -{ - return !!(ptl->ptl_options & LNET_PTL_MATCH_WILDCARD); -} - -static inline void -lnet_portal_setopt(lnet_portal_t *ptl, int opt) -{ - ptl->ptl_options |= opt; -} - -static inline void -lnet_portal_unsetopt(lnet_portal_t *ptl, int opt) -{ - ptl->ptl_options &= ~opt; -} - -static inline int -lnet_match_is_unique(lnet_process_id_t match_id, - __u64 match_bits, __u64 ignore_bits) -{ - return ignore_bits == 0 && - match_id.nid != LNET_NID_ANY && - match_id.pid != LNET_PID_ANY; -} - -static inline cfs_list_t * -lnet_portal_me_head(int index, lnet_process_id_t id, __u64 mbits) -{ - lnet_portal_t *ptl = &the_lnet.ln_portals[index]; - - if (lnet_portal_is_wildcard(ptl)) { - return &ptl->ptl_mlist; - } else if (lnet_portal_is_unique(ptl)) { - LASSERT (ptl->ptl_mhash != NULL); - return &ptl->ptl_mhash[lnet_match_to_hash(id, mbits)]; - } - return NULL; -} - -cfs_list_t *lnet_portal_mhash_alloc(void); -void lnet_portal_mhash_free(cfs_list_t *mhash); - static inline void lnet_peer_addref_locked(lnet_peer_t *lp) { @@ -579,47 +651,83 @@ lnet_isrouter(lnet_peer_t *lp) return lp->lp_rtr_refcount != 0; } +/* check if it's a router checker ping */ +static inline int +lnet_msg_is_rc_ping(struct lnet_msg *msg) +{ + lnet_hdr_t *hdr = &msg->msg_hdr; + + return msg->msg_type == LNET_MSG_GET && + hdr->msg.get.ptl_index == cpu_to_le32(LNET_RESERVED_PORTAL) && + hdr->msg.get.match_bits == + cpu_to_le64(LNET_PROTO_PING_MATCHBITS); +} + +/* peer aliveness is enabled in a network where lnet_ni_t::ni_peertimeout has + * been set to a positive value, it's only valid for router peers or peers on + * routers. + */ +static inline int +lnet_peer_aliveness_enabled(struct lnet_peer *lp) +{ + if (lp->lp_ni->ni_peertimeout <= 0) + return 0; + + return the_lnet.ln_routing || lnet_isrouter(lp); +} + static inline void -lnet_ni_addref_locked(lnet_ni_t *ni) +lnet_ni_addref_locked(lnet_ni_t *ni, int cpt) { - LASSERT (ni->ni_refcount > 0); - ni->ni_refcount++; + LASSERT(cpt >= 0 && cpt < LNET_CPT_NUMBER); + LASSERT(*ni->ni_refs[cpt] >= 0); + + (*ni->ni_refs[cpt])++; } static inline void lnet_ni_addref(lnet_ni_t *ni) { - LNET_LOCK(); - lnet_ni_addref_locked(ni); - LNET_UNLOCK(); + lnet_net_lock(0); + lnet_ni_addref_locked(ni, 0); + lnet_net_unlock(0); } static inline void -lnet_ni_decref_locked(lnet_ni_t *ni) +lnet_ni_decref_locked(lnet_ni_t *ni, int cpt) { - LASSERT (ni->ni_refcount > 0); - ni->ni_refcount--; - if (ni->ni_refcount == 0) - cfs_list_add_tail(&ni->ni_list, &the_lnet.ln_zombie_nis); + LASSERT(cpt >= 0 && cpt < LNET_CPT_NUMBER); + LASSERT(*ni->ni_refs[cpt] > 0); + + (*ni->ni_refs[cpt])--; } static inline void lnet_ni_decref(lnet_ni_t *ni) { - LNET_LOCK(); - lnet_ni_decref_locked(ni); - LNET_UNLOCK(); + lnet_net_lock(0); + lnet_ni_decref_locked(ni, 0); + lnet_net_unlock(0); } -static inline cfs_list_t * -lnet_nid2peerhash (lnet_nid_t nid) +void lnet_ni_free(lnet_ni_t *ni); + +static inline int +lnet_nid2peerhash(lnet_nid_t nid) { - unsigned int idx = LNET_NIDADDR(nid) % LNET_PEER_HASHSIZE; + return hash_long(nid, LNET_PEER_HASH_BITS); +} - return &the_lnet.ln_peer_hash[idx]; +static inline struct list_head * +lnet_net2rnethash(__u32 net) +{ + return &the_lnet.ln_remote_nets_hash[(LNET_NETNUM(net) + + LNET_NETTYP(net)) & + ((1U << the_lnet.ln_remote_nets_hbits) - 1)]; } extern lnd_t the_lolnd; +extern int avoid_asym_router_failure; #ifndef __KERNEL__ /* unconditional registration */ @@ -640,69 +748,169 @@ do { \ } while (0) #endif -#ifdef CRAY_XT3 -inline static void -lnet_set_msg_uid(lnet_ni_t *ni, lnet_msg_t *msg, lnet_uid_t uid) -{ - LASSERT (msg->msg_ev.uid == LNET_UID_ANY); - msg->msg_ev.uid = uid; -} -#endif - -extern lnet_ni_t *lnet_nid2ni_locked (lnet_nid_t nid); -extern lnet_ni_t *lnet_net2ni_locked (__u32 net); -static inline lnet_ni_t * -lnet_net2ni (__u32 net) -{ - lnet_ni_t *ni; - - LNET_LOCK(); - ni = lnet_net2ni_locked(net); - LNET_UNLOCK(); - - return ni; -} +extern int lnet_cpt_of_nid_locked(lnet_nid_t nid); +extern int lnet_cpt_of_nid(lnet_nid_t nid); +extern lnet_ni_t *lnet_nid2ni_locked(lnet_nid_t nid, int cpt); +extern lnet_ni_t *lnet_net2ni_locked(__u32 net, int cpt); +extern lnet_ni_t *lnet_net2ni(__u32 net); int lnet_notify(lnet_ni_t *ni, lnet_nid_t peer, int alive, cfs_time_t when); void lnet_notify_locked(lnet_peer_t *lp, int notifylnd, int alive, cfs_time_t when); -int lnet_add_route(__u32 net, unsigned int hops, lnet_nid_t gateway_nid); +int lnet_add_route(__u32 net, unsigned int hops, lnet_nid_t gateway_nid, + unsigned int priority); int lnet_check_routes(void); int lnet_del_route(__u32 net, lnet_nid_t gw_nid); void lnet_destroy_routes(void); int lnet_get_route(int idx, __u32 *net, __u32 *hops, - lnet_nid_t *gateway, __u32 *alive); + lnet_nid_t *gateway, __u32 *alive, __u32 *priority); +int lnet_get_net_config(int idx, + __u32 *cpt_count, + __u64 *nid, + int *peer_timeout, + int *peer_tx_credits, + int *peer_rtr_cr, + int *max_tx_credits, + struct lnet_ioctl_net_config *net_config); +int lnet_get_rtr_pool_cfg(int idx, struct lnet_ioctl_pool_cfg *pool_cfg); + void lnet_proc_init(void); void lnet_proc_fini(void); -void lnet_init_rtrpools(void); -int lnet_alloc_rtrpools(int im_a_router); -void lnet_free_rtrpools(void); +int lnet_rtrpools_alloc(int im_a_router); +void lnet_destroy_rtrbuf(lnet_rtrbuf_t *rb, int npages); +int lnet_rtrpools_adjust(int tiny, int small, int large); +int lnet_rtrpools_enable(void); +void lnet_rtrpools_disable(void); +void lnet_rtrpools_free(int keep_pools); lnet_remotenet_t *lnet_find_net_locked (__u32 net); +int lnet_dyn_add_ni(lnet_pid_t requested_pid, char *nets, + __s32 peer_timeout, __s32 peer_cr, __s32 peer_buf_cr, + __s32 credits); +int lnet_dyn_del_ni(__u32 net); int lnet_islocalnid(lnet_nid_t nid); int lnet_islocalnet(__u32 net); +void lnet_msg_attach_md(lnet_msg_t *msg, lnet_libmd_t *md, + unsigned int offset, unsigned int mlen); +void lnet_msg_detach_md(lnet_msg_t *msg, int status); void lnet_build_unlink_event(lnet_libmd_t *md, lnet_event_t *ev); -void lnet_enq_event_locked(lnet_eq_t *eq, lnet_event_t *ev); +void lnet_build_msg_event(lnet_msg_t *msg, lnet_event_kind_t ev_type); +void lnet_msg_commit(lnet_msg_t *msg, int cpt); +void lnet_msg_decommit(lnet_msg_t *msg, int cpt, int status); + +void lnet_eq_enqueue_event(lnet_eq_t *eq, lnet_event_t *ev); void lnet_prep_send(lnet_msg_t *msg, int type, lnet_process_id_t target, unsigned int offset, unsigned int len); -int lnet_send(lnet_nid_t nid, lnet_msg_t *msg); -void lnet_return_credits_locked (lnet_msg_t *msg); -void lnet_match_blocked_msg(lnet_libmd_t *md); +int lnet_send(lnet_nid_t nid, lnet_msg_t *msg, lnet_nid_t rtr_nid); +void lnet_return_tx_credits_locked(lnet_msg_t *msg); +void lnet_return_rx_credits_locked(lnet_msg_t *msg); +void lnet_schedule_blocked_locked(lnet_rtrbufpool_t *rbp); +void lnet_drop_routed_msgs_locked(struct list_head *list, int cpt); + +/* portals functions */ +/* portals attributes */ +static inline int +lnet_ptl_is_lazy(lnet_portal_t *ptl) +{ + return !!(ptl->ptl_options & LNET_PTL_LAZY); +} + +static inline int +lnet_ptl_is_unique(lnet_portal_t *ptl) +{ + return !!(ptl->ptl_options & LNET_PTL_MATCH_UNIQUE); +} + +static inline int +lnet_ptl_is_wildcard(lnet_portal_t *ptl) +{ + return !!(ptl->ptl_options & LNET_PTL_MATCH_WILDCARD); +} + +static inline void +lnet_ptl_setopt(lnet_portal_t *ptl, int opt) +{ + ptl->ptl_options |= opt; +} + +static inline void +lnet_ptl_unsetopt(lnet_portal_t *ptl, int opt) +{ + ptl->ptl_options &= ~opt; +} + +/* match-table functions */ +struct list_head *lnet_mt_match_head(struct lnet_match_table *mtable, + lnet_process_id_t id, __u64 mbits); +struct lnet_match_table *lnet_mt_of_attach(unsigned int index, + lnet_process_id_t id, __u64 mbits, + __u64 ignore_bits, + lnet_ins_pos_t pos); +int lnet_mt_match_md(struct lnet_match_table *mtable, + struct lnet_match_info *info, struct lnet_msg *msg); + +/* portals match/attach functions */ +void lnet_ptl_attach_md(lnet_me_t *me, lnet_libmd_t *md, + struct list_head *matches, struct list_head *drops); +void lnet_ptl_detach_md(lnet_me_t *me, lnet_libmd_t *md); +int lnet_ptl_match_md(struct lnet_match_info *info, struct lnet_msg *msg); + +/* initialized and finalize portals */ +int lnet_portals_create(void); +void lnet_portals_destroy(void); + +/* message functions */ int lnet_parse (lnet_ni_t *ni, lnet_hdr_t *hdr, lnet_nid_t fromnid, void *private, int rdma_req); +int lnet_parse_local(lnet_ni_t *ni, lnet_msg_t *msg); +int lnet_parse_forward_locked(lnet_ni_t *ni, lnet_msg_t *msg); + void lnet_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg, int delayed, unsigned int offset, unsigned int mlen, unsigned int rlen); +void lnet_ni_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg, + int delayed, unsigned int offset, + unsigned int mlen, unsigned int rlen); + lnet_msg_t *lnet_create_reply_msg (lnet_ni_t *ni, lnet_msg_t *get_msg); void lnet_set_reply_msg_len(lnet_ni_t *ni, lnet_msg_t *msg, unsigned int len); + void lnet_finalize(lnet_ni_t *ni, lnet_msg_t *msg, int rc); -int lnet_msg_container_setup(struct lnet_msg_container *container); +void lnet_drop_message(lnet_ni_t *ni, int cpt, void *private, + unsigned int nob); +void lnet_drop_delayed_msg_list(struct list_head *head, char *reason); +void lnet_recv_delayed_msg_list(struct list_head *head); + +int lnet_msg_container_setup(struct lnet_msg_container *container, int cpt); void lnet_msg_container_cleanup(struct lnet_msg_container *container); +void lnet_msg_containers_destroy(void); +int lnet_msg_containers_create(void); char *lnet_msgtyp2str (int type); void lnet_print_hdr (lnet_hdr_t * hdr); int lnet_fail_nid(lnet_nid_t nid, unsigned int threshold); +/** \addtogroup lnet_fault_simulation @{ */ + +int lnet_fault_ctl(int cmd, struct libcfs_ioctl_data *data); +int lnet_fault_init(void); +void lnet_fault_fini(void); + +bool lnet_drop_rule_match(lnet_hdr_t *hdr); + +int lnet_delay_rule_add(struct lnet_fault_attr *attr); +int lnet_delay_rule_del(lnet_nid_t src, lnet_nid_t dst, bool shutdown); +int lnet_delay_rule_list(int pos, struct lnet_fault_attr *attr, + struct lnet_fault_stat *stat); +void lnet_delay_rule_reset(void); +void lnet_delay_rule_check(void); +bool lnet_delay_rule_match_locked(lnet_hdr_t *hdr, struct lnet_msg *msg); + +/** @} lnet_fault_simulation */ + +void lnet_counters_get(lnet_counters_t *counters); +void lnet_counters_reset(void); + unsigned int lnet_iov_nob (unsigned int niov, struct iovec *iov); int lnet_extract_iov (int dst_niov, struct iovec *dst, int src_niov, struct iovec *src, @@ -731,7 +939,7 @@ void lnet_copy_kiov2kiov (unsigned int ndkiov, lnet_kiov_t *dkiov, unsigned int soffset, unsigned int nob); static inline void -lnet_copy_iov2flat(int dlen, void *dest, unsigned int doffset, +lnet_copy_iov2flat(int dlen, __user void *dest, unsigned int doffset, unsigned int nsiov, struct iovec *siov, unsigned int soffset, unsigned int nob) { @@ -742,9 +950,9 @@ lnet_copy_iov2flat(int dlen, void *dest, unsigned int doffset, } static inline void -lnet_copy_kiov2flat(int dlen, void *dest, unsigned int doffset, - unsigned int nsiov, lnet_kiov_t *skiov, unsigned int soffset, - unsigned int nob) +lnet_copy_kiov2flat(int dlen, void __user *dest, unsigned int doffset, + unsigned int nsiov, lnet_kiov_t *skiov, + unsigned int soffset, unsigned int nob) { struct iovec diov = {/* .iov_base = */ dest, /* .iov_len = */ dlen}; @@ -754,7 +962,8 @@ lnet_copy_kiov2flat(int dlen, void *dest, unsigned int doffset, static inline void lnet_copy_flat2iov(unsigned int ndiov, struct iovec *diov, unsigned int doffset, - int slen, void *src, unsigned int soffset, unsigned int nob) + int slen, void __user *src, unsigned int soffset, + unsigned int nob) { struct iovec siov = {/*.iov_base = */ src, /*.iov_len = */slen}; lnet_copy_iov2iov(ndiov, diov, doffset, @@ -762,8 +971,9 @@ lnet_copy_flat2iov(unsigned int ndiov, struct iovec *diov, unsigned int doffset, } static inline void -lnet_copy_flat2kiov(unsigned int ndiov, lnet_kiov_t *dkiov, unsigned int doffset, - int slen, void *src, unsigned int soffset, unsigned int nob) +lnet_copy_flat2kiov(unsigned int ndiov, lnet_kiov_t *dkiov, + unsigned int doffset, int slen, void __user *src, + unsigned int soffset, unsigned int nob) { struct iovec siov = {/* .iov_base = */ src, /* .iov_len = */ slen}; lnet_copy_iov2kiov(ndiov, dkiov, doffset, @@ -805,24 +1015,35 @@ int lnet_peer_buffer_credits(lnet_ni_t *ni); int lnet_router_checker_start(void); void lnet_router_checker_stop(void); +void lnet_router_ni_update_locked(lnet_peer_t *gw, __u32 net); void lnet_swap_pinginfo(lnet_ping_info_t *info); -int lnet_router_down_ni(lnet_peer_t *rtr, __u32 net); - -int lnet_ping_target_init(void); -void lnet_ping_target_fini(void); -int lnet_ping(lnet_process_id_t id, int timeout_ms, - lnet_process_id_t *ids, int n_ids); - -int lnet_parse_ip2nets (char **networksp, char *ip2nets); -int lnet_parse_routes (char *route_str, int *im_a_router); -int lnet_parse_networks (cfs_list_t *nilist, char *networks); - -int lnet_nid2peer_locked(lnet_peer_t **lpp, lnet_nid_t nid); -lnet_peer_t *lnet_find_peer_locked (lnet_nid_t nid); -void lnet_clear_peer_table(void); -void lnet_destroy_peer_table(void); -int lnet_create_peer_table(void); + +int lnet_parse_ip2nets(char **networksp, char *ip2nets); +int lnet_parse_routes(char *route_str, int *im_a_router); +int lnet_parse_networks(struct list_head *nilist, char *networks); +int lnet_net_unique(__u32 net, struct list_head *nilist); + +int lnet_nid2peer_locked(lnet_peer_t **lpp, lnet_nid_t nid, int cpt); +lnet_peer_t *lnet_find_peer_locked(struct lnet_peer_table *ptable, + lnet_nid_t nid); +void lnet_peer_tables_cleanup(lnet_ni_t *ni); +void lnet_peer_tables_destroy(void); +int lnet_peer_tables_create(void); void lnet_debug_peer(lnet_nid_t nid); +int lnet_get_peer_info(__u32 peer_index, __u64 *nid, + char alivness[LNET_MAX_STR_LEN], + __u32 *cpt_iter, __u32 *refcount, + __u32 *ni_peer_tx_credits, __u32 *peer_tx_credits, + __u32 *peer_rtr_credits, __u32 *peer_min_rtr_credtis, + __u32 *peer_tx_qnob); + +static inline void +lnet_peer_set_alive(lnet_peer_t *lp) +{ + lp->lp_last_alive = lp->lp_last_query = cfs_time_current(); + if (!lp->lp_alive) + lnet_notify_locked(lp, 0, 1, lp->lp_last_alive); +} #ifndef __KERNEL__ static inline int