X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lnet%2Finclude%2Flnet%2Flib-lnet.h;h=d23e4b147f175552781b489e8a984b48e9fbe919;hp=69b4829627aeef6179dc79b60b608ff5cc58cd22;hb=88f761bc00c7fb29db4f80594ae864493bdd5071;hpb=9e78291e0f1f0b12472d6a0b15eaf1aec8076ca1 diff --git a/lnet/include/lnet/lib-lnet.h b/lnet/include/lnet/lib-lnet.h index 69b4829..d23e4b1 100644 --- a/lnet/include/lnet/lib-lnet.h +++ b/lnet/include/lnet/lib-lnet.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. @@ -26,8 +24,10 @@ * 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, 2015, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -41,23 +41,50 @@ #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 +#ifndef __KERNEL__ +# error This include is only for kernel use. #endif #include -#include +#include #include #include extern lnet_t the_lnet; /* THE network */ +#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 */ + +/* 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 && @@ -88,167 +115,78 @@ static inline int lnet_md_unlinkable (lnet_libmd_t *md) lnet_md_exhausted(md)); } -#ifdef __KERNEL__ -#define LNET_LOCK() spin_lock(&the_lnet.ln_lock) -#define LNET_UNLOCK() spin_unlock(&the_lnet.ln_lock) -#define LNET_MUTEX_DOWN(m) mutex_down(m) -#define LNET_MUTEX_UP(m) mutex_up(m) -#else -# ifndef HAVE_LIBPTHREAD -#define LNET_SINGLE_THREADED_LOCK(l) \ -do { \ - LASSERT ((l) == 0); \ - (l) = 1; \ -} while (0) - -#define LNET_SINGLE_THREADED_UNLOCK(l) \ -do { \ - LASSERT ((l) == 1); \ - (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_DOWN(m) LNET_SINGLE_THREADED_LOCK(*(m)) -#define LNET_MUTEX_UP(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_DOWN(m) pthread_mutex_lock(m) -#define LNET_MUTEX_UP(m) pthread_mutex_unlock(m) -# endif -#endif - -#define MAX_PORTALS 64 - -#ifdef LNET_USE_LIB_FREELIST +#define lnet_cpt_table() (the_lnet.ln_cpt_table) +#define lnet_cpt_current() cfs_cpt_current(the_lnet.ln_cpt_table, 1) -#define MAX_MES 2048 -#define MAX_MDS 2048 -#define MAX_MSGS 2048 /* Outstanding messages */ -#define MAX_EQS 512 - -static inline void * -lnet_freelist_alloc (lnet_freelist_t *fl) +static inline int +lnet_cpt_of_cookie(__u64 cookie) { - /* ALWAYS called with liblock held */ - lnet_freeobj_t *o; - - if (list_empty (&fl->fl_list)) - return (NULL); + unsigned int cpt = (cookie >> LNET_COOKIE_TYPE_BITS) & LNET_CPT_MASK; - o = list_entry (fl->fl_list.next, lnet_freeobj_t, fo_list); - list_del (&o->fo_list); - return ((void *)&o->fo_contents); + /* 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_freelist_free (lnet_freelist_t *fl, void *obj) +lnet_res_lock(int cpt) { - /* ALWAYS called with liblock held */ - lnet_freeobj_t *o = list_entry (obj, lnet_freeobj_t, fo_contents); - - list_add (&o->fo_list, &fl->fl_list); -} - - -static inline lnet_eq_t * -lnet_eq_alloc (void) -{ - /* NEVER called with liblock held */ - lnet_eq_t *eq; - - LNET_LOCK(); - eq = (lnet_eq_t *)lnet_freelist_alloc(&the_lnet.ln_free_eqs); - LNET_UNLOCK(); - - return (eq); + cfs_percpt_lock(the_lnet.ln_res_lock, cpt); } static inline void -lnet_eq_free (lnet_eq_t *eq) +lnet_res_unlock(int cpt) { - /* ALWAYS called with liblock held */ - lnet_freelist_free(&the_lnet.ln_free_eqs, eq); + cfs_percpt_unlock(the_lnet.ln_res_lock, cpt); } -static inline lnet_libmd_t * -lnet_md_alloc (lnet_md_t *umd) +static inline int +lnet_res_lock_current(void) { - /* NEVER called with liblock held */ - lnet_libmd_t *md; - - LNET_LOCK(); - md = (lnet_libmd_t *)lnet_freelist_alloc(&the_lnet.ln_free_mds); - LNET_UNLOCK(); + int cpt = lnet_cpt_current(); - if (md != NULL) - CFS_INIT_LIST_HEAD(&md->md_list); - - return (md); + lnet_res_lock(cpt); + return cpt; } static inline void -lnet_md_free (lnet_libmd_t *md) +lnet_net_lock(int cpt) { - /* ALWAYS called with liblock held */ - lnet_freelist_free (&the_lnet.ln_free_mds, md); -} - -static inline lnet_me_t * -lnet_me_alloc (void) -{ - /* NEVER called with liblock held */ - lnet_me_t *me; - - LNET_LOCK(); - me = (lnet_me_t *)lnet_freelist_alloc(&the_lnet.ln_free_mes); - LNET_UNLOCK(); - - return (me); + cfs_percpt_lock(the_lnet.ln_net_lock, cpt); } static inline void -lnet_me_free (lnet_me_t *me) +lnet_net_unlock(int cpt) { - /* ALWAYS called with liblock held */ - lnet_freelist_free (&the_lnet.ln_free_mes, me); + cfs_percpt_unlock(the_lnet.ln_net_lock, cpt); } -static inline lnet_msg_t * -lnet_msg_alloc (void) +static inline int +lnet_net_lock_current(void) { - /* NEVER called with liblock held */ - lnet_msg_t *msg; + int cpt = lnet_cpt_current(); - LNET_LOCK(); - msg = (lnet_msg_t *)lnet_freelist_alloc(&the_lnet.ln_free_msgs); - LNET_UNLOCK(); - - 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); + lnet_net_lock(cpt); + return cpt; } -static inline void -lnet_msg_free (lnet_msg_t *msg) -{ - /* ALWAYS called with liblock held */ - LASSERT (!msg->msg_onactivelist); - lnet_freelist_free(&the_lnet.ln_free_msgs, msg); -} +#define LNET_LOCK() lnet_net_lock(LNET_LOCK_EX) +#define LNET_UNLOCK() lnet_net_unlock(LNET_LOCK_EX) -#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) + +#define MAX_PORTALS 64 static inline lnet_eq_t * lnet_eq_alloc (void) { - /* NEVER called with liblock held */ lnet_eq_t *eq; LIBCFS_ALLOC(eq, sizeof(*eq)); @@ -256,16 +194,14 @@ lnet_eq_alloc (void) } static inline void -lnet_eq_free (lnet_eq_t *eq) +lnet_eq_free(lnet_eq_t *eq) { - /* ALWAYS called with liblock held */ - LIBCFS_FREE(eq, sizeof(*eq)); + LIBCFS_FREE(eq, sizeof(*eq)); } static inline lnet_libmd_t * lnet_md_alloc (lnet_md_t *umd) { - /* NEVER called with liblock held */ lnet_libmd_t *md; unsigned int size; unsigned int niov; @@ -281,34 +217,32 @@ 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 -lnet_md_free (lnet_libmd_t *md) +lnet_md_free(lnet_libmd_t *md) { - /* ALWAYS called with liblock held */ - unsigned int size; + unsigned int size; - if ((md->md_options & LNET_MD_KIOV) != 0) - size = offsetof(lnet_libmd_t, md_iov.kiov[md->md_niov]); - else - size = offsetof(lnet_libmd_t, md_iov.iov[md->md_niov]); + if ((md->md_options & LNET_MD_KIOV) != 0) + size = offsetof(lnet_libmd_t, md_iov.kiov[md->md_niov]); + else + size = offsetof(lnet_libmd_t, md_iov.iov[md->md_niov]); - LIBCFS_FREE(md, size); + LIBCFS_FREE(md, size); } static inline lnet_me_t * lnet_me_alloc (void) { - /* NEVER called with liblock held */ lnet_me_t *me; LIBCFS_ALLOC(me, sizeof(*me)); @@ -318,40 +252,38 @@ lnet_me_alloc (void) static inline void lnet_me_free(lnet_me_t *me) { - /* ALWAYS called with liblock held */ - LIBCFS_FREE(me, sizeof(*me)); + LIBCFS_FREE(me, sizeof(*me)); } static inline lnet_msg_t * lnet_msg_alloc(void) { - /* NEVER called with liblock held */ lnet_msg_t *msg; LIBCFS_ALLOC(msg, sizeof(*msg)); - if (msg != NULL) { - /* NULL pointers, clear flags etc */ - memset (msg, 0, sizeof (*msg)); -#ifdef CRAY_XT3 - msg->msg_ev.uid = LNET_UID_ANY; -#endif - } + /* no need to zero, LIBCFS_ALLOC does for us */ return (msg); } static inline void lnet_msg_free(lnet_msg_t *msg) { - /* ALWAYS called with liblock held */ - LASSERT (!msg->msg_onactivelist); - LIBCFS_FREE(msg, sizeof(*msg)); + LASSERT(!msg->msg_onactivelist); + LIBCFS_FREE(msg, sizeof(*msg)); } -#endif -extern lnet_libhandle_t *lnet_lookup_cookie (__u64 cookie, int type); -extern void lnet_initialise_handle (lnet_libhandle_t *lh, int type); -extern void lnet_invalidate_handle (lnet_libhandle_t *lh); +lnet_libhandle_t *lnet_res_lh_lookup(struct lnet_res_container *rec, + __u64 cookie); +void lnet_res_lh_initialize(struct lnet_res_container *rec, + lnet_libhandle_t *lh); +static inline void +lnet_res_lh_invalidate(lnet_libhandle_t *lh) +{ + /* ALWAYS called with resource lock held */ + /* NB: cookie is still useful, don't reset it */ + list_del(&lh->lh_hash_chain); +} static inline void lnet_eq2handle (lnet_handle_eq_t *handle, lnet_eq_t *eq) @@ -365,15 +297,16 @@ lnet_eq2handle (lnet_handle_eq_t *handle, lnet_eq_t *eq) } static inline lnet_eq_t * -lnet_handle2eq (lnet_handle_eq_t *handle) +lnet_handle2eq(lnet_handle_eq_t *handle) { - /* ALWAYS called with liblock held */ - lnet_libhandle_t *lh = lnet_lookup_cookie(handle->cookie, - LNET_COOKIE_TYPE_EQ); - if (lh == NULL) - return (NULL); + /* ALWAYS called with resource lock held */ + lnet_libhandle_t *lh; + + lh = lnet_res_lh_lookup(&the_lnet.ln_eq_container, handle->cookie); + if (lh == NULL) + return NULL; - return (lh_entry (lh, lnet_eq_t, eq_lh)); + return lh_entry(lh, lnet_eq_t, eq_lh); } static inline void @@ -383,32 +316,38 @@ lnet_md2handle (lnet_handle_md_t *handle, lnet_libmd_t *md) } static inline lnet_libmd_t * -lnet_handle2md (lnet_handle_md_t *handle) +lnet_handle2md(lnet_handle_md_t *handle) { - /* ALWAYS called with liblock held */ - lnet_libhandle_t *lh = lnet_lookup_cookie(handle->cookie, - LNET_COOKIE_TYPE_MD); - if (lh == NULL) - return (NULL); + /* ALWAYS called with resource lock held */ + lnet_libhandle_t *lh; + int cpt; - return (lh_entry (lh, lnet_libmd_t, md_lh)); + 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; + + return lh_entry(lh, lnet_libmd_t, md_lh); } static inline lnet_libmd_t * -lnet_wire_handle2md (lnet_handle_wire_t *wh) +lnet_wire_handle2md(lnet_handle_wire_t *wh) { - /* ALWAYS called with liblock held */ - lnet_libhandle_t *lh; + /* ALWAYS called with resource lock held */ + lnet_libhandle_t *lh; + int cpt; - if (wh->wh_interface_cookie != the_lnet.ln_interface_cookie) - return (NULL); + if (wh->wh_interface_cookie != the_lnet.ln_interface_cookie) + return NULL; - lh = lnet_lookup_cookie(wh->wh_object_cookie, - LNET_COOKIE_TYPE_MD); - if (lh == NULL) - return (NULL); + 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; - return (lh_entry (lh, lnet_libmd_t, md_lh)); + return lh_entry(lh, lnet_libmd_t, md_lh); } static inline void @@ -418,15 +357,19 @@ lnet_me2handle (lnet_handle_me_t *handle, lnet_me_t *me) } static inline lnet_me_t * -lnet_handle2me (lnet_handle_me_t *handle) +lnet_handle2me(lnet_handle_me_t *handle) { - /* ALWAYS called with liblock held */ - lnet_libhandle_t *lh = lnet_lookup_cookie(handle->cookie, - LNET_COOKIE_TYPE_ME); - if (lh == NULL) - return (NULL); + /* ALWAYS called with resource lock held */ + lnet_libhandle_t *lh; + int cpt; + + 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)); + return lh_entry(lh, lnet_me_t, me_lh); } static inline void @@ -454,189 +397,310 @@ lnet_isrouter(lnet_peer_t *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) - 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 struct list_head * -lnet_nid2peerhash (lnet_nid_t nid) -{ - unsigned int idx = LNET_NIDADDR(nid) % LNET_PEER_HASHSIZE; +void lnet_ni_free(lnet_ni_t *ni); +lnet_ni_t * +lnet_ni_alloc(__u32 net, struct cfs_expr_list *el, struct list_head *nilist); - return &the_lnet.ln_peer_hash[idx]; +static inline int +lnet_nid2peerhash(lnet_nid_t nid) +{ + return hash_long(nid, LNET_PEER_HASH_BITS); } -extern lnd_t the_lolnd; - -#ifndef __KERNEL__ -/* unconditional registration */ -#define LNET_REGISTER_ULND(lnd) \ -do { \ - extern lnd_t lnd; \ - \ - lnet_register_lnd(&(lnd)); \ -} while (0) - -/* conditional registration */ -#define LNET_REGISTER_ULND_IF_PRESENT(lnd) \ -do { \ - extern lnd_t lnd __attribute__ ((weak, alias("the_lolnd"))); \ - \ - if (&(lnd) != &the_lolnd) \ - lnet_register_lnd(&(lnd)); \ -} 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) +static inline struct list_head * +lnet_net2rnethash(__u32 net) { - LASSERT (msg->msg_ev.uid == LNET_UID_ANY); - msg->msg_ev.uid = uid; + return &the_lnet.ln_remote_nets_hash[(LNET_NETNUM(net) + + LNET_NETTYP(net)) & + ((1U << the_lnet.ln_remote_nets_hbits) - 1)]; } -#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; +extern lnd_t the_lolnd; +extern int avoid_asym_router_failure; - LNET_LOCK(); - ni = lnet_net2ni_locked(net); - LNET_UNLOCK(); +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); - return ni; -} +int lnet_lib_init(void); +void lnet_lib_exit(void); + +extern int portal_rotor; 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, __u32 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); + +struct libcfs_ioctl_handler { + struct list_head item; + int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_hdr *hdr); +}; + +#define DECLARE_IOCTL_HANDLER(ident, func) \ + static struct libcfs_ioctl_handler ident = { \ + /* .item = */ LIST_HEAD_INIT(ident.item), \ + /* .handle_ioctl = */ func \ + } + +extern int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand); +extern int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand); +extern int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, + struct libcfs_ioctl_hdr __user *uparam); + 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_clear_lazy_portal(struct lnet_ni *ni, int portal, char *reason); 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); +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); -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, - unsigned int offset, unsigned int len); +/** \addtogroup lnet_fault_simulation @{ */ -unsigned int lnet_kiov_nob (unsigned int niov, lnet_kiov_t *iov); -int lnet_extract_kiov (int dst_niov, lnet_kiov_t *dst, - int src_niov, lnet_kiov_t *src, +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 kvec *iov); +int lnet_extract_iov(int dst_niov, struct kvec *dst, + int src_niov, struct kvec *src, unsigned int offset, unsigned int len); -void lnet_copy_iov2iov (unsigned int ndiov, struct iovec *diov, - unsigned int doffset, - unsigned int nsiov, struct iovec *siov, - unsigned int soffset, unsigned int nob); -void lnet_copy_kiov2iov (unsigned int niov, struct iovec *iov, - unsigned int iovoffset, - unsigned int nkiov, lnet_kiov_t *kiov, - unsigned int kiovoffset, unsigned int nob); -void lnet_copy_iov2kiov (unsigned int nkiov, lnet_kiov_t *kiov, - unsigned int kiovoffset, - unsigned int niov, struct iovec *iov, - unsigned int iovoffset, unsigned int nob); -void lnet_copy_kiov2kiov (unsigned int ndkiov, lnet_kiov_t *dkiov, - unsigned int doffset, - unsigned int nskiov, lnet_kiov_t *skiov, - unsigned int soffset, unsigned int nob); +unsigned int lnet_kiov_nob (unsigned int niov, lnet_kiov_t *iov); +int lnet_extract_kiov(int dst_niov, lnet_kiov_t *dst, + int src_niov, lnet_kiov_t *src, + unsigned int offset, unsigned int len); + +void lnet_copy_iov2iov(unsigned int ndiov, struct kvec *diov, + unsigned int doffset, + unsigned int nsiov, struct kvec *siov, + unsigned int soffset, unsigned int nob); +void lnet_copy_kiov2iov(unsigned int niov, struct kvec *iov, + unsigned int iovoffset, + unsigned int nkiov, lnet_kiov_t *kiov, + unsigned int kiovoffset, unsigned int nob); +void lnet_copy_iov2kiov(unsigned int nkiov, lnet_kiov_t *kiov, + unsigned int kiovoffset, + unsigned int niov, struct kvec *iov, + unsigned int iovoffset, unsigned int nob); +void lnet_copy_kiov2kiov(unsigned int ndkiov, lnet_kiov_t *dkiov, + unsigned int doffset, + unsigned int nskiov, lnet_kiov_t *skiov, + unsigned int soffset, unsigned int nob); static inline void -lnet_copy_iov2flat(int dlen, void *dest, unsigned int doffset, - unsigned int nsiov, struct iovec *siov, unsigned int soffset, +lnet_copy_iov2flat(int dlen, __user void *dest, unsigned int doffset, + unsigned int nsiov, struct kvec *siov, unsigned int soffset, unsigned int nob) { - struct iovec diov = {/*.iov_base = */ dest, /*.iov_len = */ dlen}; + struct kvec diov = {/*.iov_base = */ dest, /*.iov_len = */ dlen}; lnet_copy_iov2iov(1, &diov, doffset, nsiov, siov, soffset, nob); } 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}; + struct kvec diov = {/* .iov_base = */ dest, /* .iov_len = */ dlen}; lnet_copy_kiov2iov(1, &diov, doffset, nsiov, skiov, soffset, nob); } 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) +lnet_copy_flat2iov(unsigned int ndiov, struct kvec *diov, unsigned int doffset, + int slen, void __user *src, unsigned int soffset, + unsigned int nob) { - struct iovec siov = {/*.iov_base = */ src, /*.iov_len = */slen}; + struct kvec siov = {/*.iov_base = */ src, /*.iov_len = */slen}; lnet_copy_iov2iov(ndiov, diov, doffset, 1, &siov, soffset, nob); } 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}; + struct kvec siov = {/* .iov_base = */ src, /* .iov_len = */ slen}; lnet_copy_iov2kiov(ndiov, dkiov, doffset, 1, &siov, soffset, nob); } @@ -648,70 +712,65 @@ void lnet_md_deconstruct(lnet_libmd_t *lmd, lnet_md_t *umd); void lnet_register_lnd(lnd_t *lnd); void lnet_unregister_lnd(lnd_t *lnd); -int lnet_set_ip_niaddr (lnet_ni_t *ni); -#ifdef __KERNEL__ -int lnet_connect(cfs_socket_t **sockp, lnet_nid_t peer_nid, +int lnet_connect(struct socket **sockp, lnet_nid_t peer_nid, __u32 local_ip, __u32 peer_ip, int peer_port); void lnet_connect_console_error(int rc, lnet_nid_t peer_nid, __u32 peer_ip, int port); int lnet_count_acceptor_nis(void); int lnet_acceptor_timeout(void); int lnet_acceptor_port(void); -#else -void lnet_router_checker(void); -#endif - -#ifdef HAVE_LIBPTHREAD -int lnet_count_acceptor_nis(void); -int lnet_acceptor_port(void); -#endif - int lnet_acceptor_start(void); void lnet_acceptor_stop(void); -void lnet_get_tunables(void); +int lnet_ipif_query(char *name, int *up, __u32 *ip, __u32 *mask); +int lnet_ipif_enumerate(char ***names); +void lnet_ipif_free_enumeration(char **names, int n); +int lnet_sock_setbuf(struct socket *socket, int txbufsize, int rxbufsize); +int lnet_sock_getbuf(struct socket *socket, int *txbufsize, int *rxbufsize); +int lnet_sock_getaddr(struct socket *socket, bool remote, __u32 *ip, int *port); +int lnet_sock_write(struct socket *sock, void *buffer, int nob, int timeout); +int lnet_sock_read(struct socket *sock, void *buffer, int nob, int timeout); + +int lnet_sock_listen(struct socket **sockp, __u32 ip, int port, int backlog); +int lnet_sock_accept(struct socket **newsockp, struct socket *sock); +int lnet_sock_connect(struct socket **sockp, int *fatal, + __u32 local_ip, int local_port, + __u32 peer_ip, int peer_port); + int lnet_peers_start_down(void); 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 (struct list_head *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); -#ifndef __KERNEL__ -static inline int -lnet_parse_int_tunable(int *value, char *name) +static inline void +lnet_peer_set_alive(lnet_peer_t *lp) { - char *env = getenv(name); - char *end; - - if (env == NULL) - return 0; - - *value = strtoull(env, &end, 0); - if (*end == 0) - return 0; - - CERROR("Can't parse tunable %s=%s\n", name, env); - return -EINVAL; + 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); } -#endif #endif