X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lnet%2Finclude%2Flnet%2Flib-lnet.h;h=87a29c7087816d2b5af10442f1a6bbea8dff2c3c;hp=3582b944e7076594ba5d7aaf8869789689b11d28;hb=2c56a64e065f471057928f16b9b550ca0050bdc1;hpb=fc5bf52cd4e080fc75a8d6eaf240e108a1e723e6 diff --git a/lnet/include/lnet/lib-lnet.h b/lnet/include/lnet/lib-lnet.h index 3582b94..87a29c7 100644 --- a/lnet/include/lnet/lib-lnet.h +++ b/lnet/include/lnet/lib-lnet.h @@ -1,372 +1,714 @@ /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: * - * lib-p30.h + * GPL HEADER START + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 only, + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License version 2 for more details (a copy is included + * in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU General Public License + * version 2 along with this program; If not, see + * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + * GPL HEADER END + */ +/* + * Copyright 2008 Sun Microsystems, Inc. All rights reserved + * Use is subject to license terms. + */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. + * + * lnet/include/lnet/lib-lnet.h * * Top level include for library side routines */ -#ifndef _LIB_P30_H_ -#define _LIB_P30_H_ +#ifndef __LNET_LIB_LNET_H__ +#define __LNET_LIB_LNET_H__ -#ifdef __KERNEL__ -# include -# include +#if defined(__linux__) +#include +#elif defined(__APPLE__) +#include +#elif defined(__WINNT__) +#include #else -# include -# include +#error Unsupported Operating System #endif -#include -#include -#include -#include -#include -#include -#include -static inline int ptl_is_wire_handle_none (ptl_handle_wire_t *wh) +#include +#include +#include +#include + +extern lnet_t the_lnet; /* THE network */ + +static inline int lnet_is_wire_handle_none (lnet_handle_wire_t *wh) { - return (wh->wh_interface_cookie == PTL_WIRE_HANDLE_NONE.wh_interface_cookie && - wh->wh_object_cookie == PTL_WIRE_HANDLE_NONE.wh_object_cookie); + return (wh->wh_interface_cookie == LNET_WIRE_HANDLE_COOKIE_NONE && + wh->wh_object_cookie == LNET_WIRE_HANDLE_COOKIE_NONE); } -#define state_lock(nal,flagsp) \ -do { \ - CDEBUG(D_PORTALS, "taking state lock\n"); \ - nal->cb_cli(nal, flagsp); \ -} while (0) +static inline int lnet_md_exhausted (lnet_libmd_t *md) +{ + return (md->md_threshold == 0 || + ((md->md_options & LNET_MD_MAX_SIZE) != 0 && + md->md_offset + md->md_max_size > md->md_length)); +} -#define state_unlock(nal,flagsp) \ -{ \ - CDEBUG(D_PORTALS, "releasing state lock\n"); \ - nal->cb_sti(nal, flagsp); \ +static inline int lnet_md_unlinkable (lnet_libmd_t *md) +{ + /* Should unlink md when its refcount is 0 and either: + * - md has been flagged for deletion (by auto unlink or LNetM[DE]Unlink, + * in the latter case md may not be exhausted). + * - auto unlink is on and md is exhausted. + */ + if (md->md_refcount != 0) + return 0; + + if ((md->md_flags & LNET_MD_FLAG_ZOMBIE) != 0) + return 1; + + return ((md->md_flags & LNET_MD_FLAG_AUTO_UNLINK) != 0 && + lnet_md_exhausted(md)); } -#ifdef PTL_USE_DESC_LISTS +#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 MAX_MES 2048 #define MAX_MDS 2048 #define MAX_MSGS 2048 /* Outstanding messages */ #define MAX_EQS 512 -extern int lib_freelist_init (nal_cb_t *nal, lib_freelist_t *fl, int nobj, int objsize); -extern void lib_freelist_fini (nal_cb_t *nal, lib_freelist_t *fl); - static inline void * -lib_freelist_alloc (lib_freelist_t *fl) +lnet_freelist_alloc (lnet_freelist_t *fl) { - /* ALWAYS called with statelock held */ - lib_freeobj_t *o; + /* ALWAYS called with liblock held */ + lnet_freeobj_t *o; if (list_empty (&fl->fl_list)) return (NULL); - - o = list_entry (fl->fl_list.next, lib_freeobj_t, fo_list); + + 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 -lib_freelist_free (lib_freelist_t *fl, void *obj) +lnet_freelist_free (lnet_freelist_t *fl, void *obj) { - /* ALWAYS called with statelock held */ - lib_freeobj_t *o = list_entry (obj, lib_freeobj_t, fo_contents); - + /* 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 lib_eq_t * -lib_eq_alloc (nal_cb_t *nal) +static inline lnet_eq_t * +lnet_eq_alloc (void) { - /* NEVER called with statelock held */ - unsigned long flags; - lib_eq_t *eq; - - state_lock (nal, &flags); - eq = (lib_eq_t *)lib_freelist_alloc (&nal->ni.ni_free_eqs); - state_unlock (nal, &flags); + /* 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); } static inline void -lib_eq_free (nal_cb_t *nal, lib_eq_t *eq) +lnet_eq_free (lnet_eq_t *eq) { - /* ALWAYS called with statelock held */ - lib_freelist_free (&nal->ni.ni_free_eqs, eq); + /* ALWAYS called with liblock held */ + lnet_freelist_free(&the_lnet.ln_free_eqs, eq); } -static inline lib_md_t * -lib_md_alloc (nal_cb_t *nal) +static inline lnet_libmd_t * +lnet_md_alloc (lnet_md_t *umd) { - /* NEVER called with statelock held */ - unsigned long flags; - lib_md_t *md; - - state_lock (nal, &flags); - md = (lib_md_t *)lib_freelist_alloc (&nal->ni.ni_free_mds); - state_unlock (nal, &flags); + /* 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(); + + if (md != NULL) + CFS_INIT_LIST_HEAD(&md->md_list); return (md); } static inline void -lib_md_free (nal_cb_t *nal, lib_md_t *md) +lnet_md_free (lnet_libmd_t *md) { - /* ALWAYS called with statelock held */ - lib_freelist_free (&nal->ni.ni_free_mds, md); + /* ALWAYS called with liblock held */ + lnet_freelist_free (&the_lnet.ln_free_mds, md); } -static inline lib_me_t * -lib_me_alloc (nal_cb_t *nal) +static inline lnet_me_t * +lnet_me_alloc (void) { - /* NEVER called with statelock held */ - unsigned long flags; - lib_me_t *me; - - state_lock (nal, &flags); - me = (lib_me_t *)lib_freelist_alloc (&nal->ni.ni_free_mes); - state_unlock (nal, &flags); - + /* 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); } static inline void -lib_me_free (nal_cb_t *nal, lib_me_t *me) +lnet_me_free (lnet_me_t *me) { - /* ALWAYS called with statelock held */ - lib_freelist_free (&nal->ni.ni_free_mes, me); + /* ALWAYS called with liblock held */ + lnet_freelist_free (&the_lnet.ln_free_mes, me); } -static inline lib_msg_t * -lib_msg_alloc (nal_cb_t *nal) +static inline lnet_msg_t * +lnet_msg_alloc (void) { - /* ALWAYS called with statelock held */ - return ((lib_msg_t *)lib_freelist_alloc (&nal->ni.ni_free_msgs)); + /* NEVER called with liblock held */ + lnet_msg_t *msg; + + 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); } static inline void -lib_msg_free (nal_cb_t *nal, lib_msg_t *msg) +lnet_msg_free (lnet_msg_t *msg) { - /* ALWAYS called with statelock held */ - lib_freelist_free (&nal->ni.ni_free_msgs, msg); + /* ALWAYS called with liblock held */ + LASSERT (!msg->msg_onactivelist); + lnet_freelist_free(&the_lnet.ln_free_msgs, msg); } #else -extern atomic_t md_in_use_count; -extern atomic_t msg_in_use_count; -extern atomic_t me_in_use_count; -extern atomic_t eq_in_use_count; - -static inline lib_eq_t * -lib_eq_alloc (nal_cb_t *nal) +static inline lnet_eq_t * +lnet_eq_alloc (void) { - /* NEVER called with statelock held */ - lib_eq_t *eq; - PORTAL_ALLOC(eq, sizeof(*eq)); + /* NEVER called with liblock held */ + lnet_eq_t *eq; - if (eq == NULL) - return (NULL); - - atomic_inc (&eq_in_use_count); + LIBCFS_ALLOC(eq, sizeof(*eq)); return (eq); } static inline void -lib_eq_free (nal_cb_t *nal, lib_eq_t *eq) +lnet_eq_free (lnet_eq_t *eq) { - /* ALWAYS called with statelock held */ - atomic_dec (&eq_in_use_count); - PORTAL_FREE(eq, sizeof(*eq)); + /* ALWAYS called with liblock held */ + LIBCFS_FREE(eq, sizeof(*eq)); } -static inline lib_md_t * -lib_md_alloc (nal_cb_t *nal) +static inline lnet_libmd_t * +lnet_md_alloc (lnet_md_t *umd) { - /* NEVER called with statelock held */ - lib_md_t *md; - PORTAL_ALLOC(md, sizeof(*md)); + /* NEVER called with liblock held */ + lnet_libmd_t *md; + unsigned int size; + unsigned int niov; + + if ((umd->options & LNET_MD_KIOV) != 0) { + niov = umd->length; + size = offsetof(lnet_libmd_t, md_iov.kiov[niov]); + } else { + niov = ((umd->options & LNET_MD_IOVEC) != 0) ? + umd->length : 1; + size = offsetof(lnet_libmd_t, md_iov.iov[niov]); + } + + 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) - return (NULL); - - atomic_inc (&md_in_use_count); return (md); } -static inline void -lib_md_free (nal_cb_t *nal, lib_md_t *md) +static inline void +lnet_md_free (lnet_libmd_t *md) { - /* ALWAYS called with statelock held */ - atomic_dec (&md_in_use_count); - PORTAL_FREE(md, sizeof(*md)); + /* ALWAYS called with liblock held */ + 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]); + + LIBCFS_FREE(md, size); } -static inline lib_me_t * -lib_me_alloc (nal_cb_t *nal) +static inline lnet_me_t * +lnet_me_alloc (void) { - /* NEVER called with statelock held */ - lib_me_t *me; - PORTAL_ALLOC(me, sizeof(*me)); + /* NEVER called with liblock held */ + lnet_me_t *me; - if (me == NULL) - return (NULL); - - atomic_inc (&me_in_use_count); + LIBCFS_ALLOC(me, sizeof(*me)); return (me); } -static inline void -lib_me_free(nal_cb_t *nal, lib_me_t *me) +static inline void +lnet_me_free(lnet_me_t *me) { - /* ALWAYS called with statelock held */ - atomic_dec (&me_in_use_count); - PORTAL_FREE(me, sizeof(*me)); + /* ALWAYS called with liblock held */ + LIBCFS_FREE(me, sizeof(*me)); } -static inline lib_msg_t * -lib_msg_alloc(nal_cb_t *nal) +static inline lnet_msg_t * +lnet_msg_alloc(void) { - /* ALWAYS called with statelock held */ - lib_msg_t *msg; - PORTAL_ALLOC_ATOMIC(msg, sizeof(*msg)); + /* NEVER called with liblock held */ + lnet_msg_t *msg; - if (msg == NULL) - return (NULL); - - atomic_inc (&msg_in_use_count); + 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 + } return (msg); } -static inline void -lib_msg_free(nal_cb_t *nal, lib_msg_t *msg) +static inline void +lnet_msg_free(lnet_msg_t *msg) { - /* ALWAYS called with statelock held */ - atomic_dec (&msg_in_use_count); - PORTAL_FREE(msg, sizeof(*msg)); + /* ALWAYS called with liblock held */ + LASSERT (!msg->msg_onactivelist); + LIBCFS_FREE(msg, sizeof(*msg)); } #endif -extern lib_handle_t *lib_lookup_cookie (nal_cb_t *nal, __u64 cookie, int type); -extern void lib_initialise_handle (nal_cb_t *nal, lib_handle_t *lh, int type); -extern void lib_invalidate_handle (nal_cb_t *nal, lib_handle_t *lh); +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); static inline void -ptl_eq2handle (ptl_handle_eq_t *handle, lib_eq_t *eq) +lnet_eq2handle (lnet_handle_eq_t *handle, lnet_eq_t *eq) { + if (eq == NULL) { + LNetInvalidateHandle(handle); + return; + } + handle->cookie = eq->eq_lh.lh_cookie; } -static inline lib_eq_t * -ptl_handle2eq (ptl_handle_eq_t *handle, nal_cb_t *nal) +static inline lnet_eq_t * +lnet_handle2eq (lnet_handle_eq_t *handle) { - /* ALWAYS called with statelock held */ - lib_handle_t *lh = lib_lookup_cookie (nal, handle->cookie, - PTL_COOKIE_TYPE_EQ); + /* ALWAYS called with liblock held */ + lnet_libhandle_t *lh = lnet_lookup_cookie(handle->cookie, + LNET_COOKIE_TYPE_EQ); if (lh == NULL) return (NULL); - return (lh_entry (lh, lib_eq_t, eq_lh)); + return (lh_entry (lh, lnet_eq_t, eq_lh)); } static inline void -ptl_md2handle (ptl_handle_md_t *handle, lib_md_t *md) +lnet_md2handle (lnet_handle_md_t *handle, lnet_libmd_t *md) { handle->cookie = md->md_lh.lh_cookie; } -static inline lib_md_t * -ptl_handle2md (ptl_handle_md_t *handle, nal_cb_t *nal) +static inline lnet_libmd_t * +lnet_handle2md (lnet_handle_md_t *handle) { - /* ALWAYS called with statelock held */ - lib_handle_t *lh = lib_lookup_cookie (nal, handle->cookie, - PTL_COOKIE_TYPE_MD); + /* ALWAYS called with liblock held */ + lnet_libhandle_t *lh = lnet_lookup_cookie(handle->cookie, + LNET_COOKIE_TYPE_MD); if (lh == NULL) return (NULL); - return (lh_entry (lh, lib_md_t, md_lh)); + return (lh_entry (lh, lnet_libmd_t, md_lh)); } -static inline lib_md_t * -ptl_wire_handle2md (ptl_handle_wire_t *wh, nal_cb_t *nal) +static inline lnet_libmd_t * +lnet_wire_handle2md (lnet_handle_wire_t *wh) { - /* ALWAYS called with statelock held */ - lib_handle_t *lh; - - if (wh->wh_interface_cookie != nal->ni.ni_interface_cookie) + /* ALWAYS called with liblock held */ + lnet_libhandle_t *lh; + + if (wh->wh_interface_cookie != the_lnet.ln_interface_cookie) return (NULL); - - lh = lib_lookup_cookie (nal, wh->wh_object_cookie, - PTL_COOKIE_TYPE_MD); + + lh = lnet_lookup_cookie(wh->wh_object_cookie, + LNET_COOKIE_TYPE_MD); if (lh == NULL) return (NULL); - return (lh_entry (lh, lib_md_t, md_lh)); + return (lh_entry (lh, lnet_libmd_t, md_lh)); } static inline void -ptl_me2handle (ptl_handle_me_t *handle, lib_me_t *me) +lnet_me2handle (lnet_handle_me_t *handle, lnet_me_t *me) { handle->cookie = me->me_lh.lh_cookie; } -static inline lib_me_t * -ptl_handle2me (ptl_handle_me_t *handle, nal_cb_t *nal) +static inline lnet_me_t * +lnet_handle2me (lnet_handle_me_t *handle) { - /* ALWAYS called with statelock held */ - lib_handle_t *lh = lib_lookup_cookie (nal, handle->cookie, - PTL_COOKIE_TYPE_ME); + /* ALWAYS called with liblock held */ + lnet_libhandle_t *lh = lnet_lookup_cookie(handle->cookie, + LNET_COOKIE_TYPE_ME); if (lh == NULL) return (NULL); - return (lh_entry (lh, lib_me_t, me_lh)); + return (lh_entry (lh, lnet_me_t, me_lh)); } -extern int lib_init(nal_cb_t * cb, ptl_nid_t nid, ptl_pid_t pid, int gsize, - ptl_pt_index_t tbl_size, ptl_ac_index_t ac_size); -extern int lib_fini(nal_cb_t * cb); -extern void lib_dispatch(nal_cb_t * cb, void *private, int index, - void *arg_block, void *ret_block); -extern char *dispatch_name(int index); +static inline void +lnet_peer_addref_locked(lnet_peer_t *lp) +{ + LASSERT (lp->lp_refcount > 0); + lp->lp_refcount++; +} + +extern void lnet_destroy_peer_locked(lnet_peer_t *lp); + +static inline void +lnet_peer_decref_locked(lnet_peer_t *lp) +{ + LASSERT (lp->lp_refcount > 0); + lp->lp_refcount--; + if (lp->lp_refcount == 0) + lnet_destroy_peer_locked(lp); +} + +static inline int +lnet_isrouter(lnet_peer_t *lp) +{ + return lp->lp_rtr_refcount != 0; +} + +static inline void +lnet_ni_addref_locked(lnet_ni_t *ni) +{ + LASSERT (ni->ni_refcount > 0); + ni->ni_refcount++; +} + +static inline void +lnet_ni_addref(lnet_ni_t *ni) +{ + LNET_LOCK(); + lnet_ni_addref_locked(ni); + LNET_UNLOCK(); +} + +static inline void +lnet_ni_decref_locked(lnet_ni_t *ni) +{ + LASSERT (ni->ni_refcount > 0); + ni->ni_refcount--; + if (ni->ni_refcount == 0) + list_add_tail(&ni->ni_list, &the_lnet.ln_zombie_nis); +} + +static inline void +lnet_ni_decref(lnet_ni_t *ni) +{ + LNET_LOCK(); + lnet_ni_decref_locked(ni); + LNET_UNLOCK(); +} + +static inline struct list_head * +lnet_nid2peerhash (lnet_nid_t nid) +{ + unsigned int idx = LNET_NIDADDR(nid) % LNET_PEER_HASHSIZE; + + return &the_lnet.ln_peer_hash[idx]; +} + +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) +{ + 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; +} + +int lnet_notify(lnet_ni_t *ni, lnet_nid_t peer, int alive, time_t when); +void lnet_notify_locked(lnet_peer_t *lp, int notifylnd, int alive, time_t when); +int lnet_add_route(__u32 net, unsigned int hops, lnet_nid_t gateway_nid); +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); +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); +lnet_remotenet_t *lnet_find_net_locked (__u32 net); + +int lnet_islocalnid(lnet_nid_t nid); +int lnet_islocalnet(__u32 net); + +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_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_parse (lnet_ni_t *ni, lnet_hdr_t *hdr, + lnet_nid_t fromnid, void *private, int rdma_req); +void lnet_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); + +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); + +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 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); + +static inline void +lnet_copy_iov2flat(int dlen, void *dest, unsigned int doffset, + unsigned int nsiov, struct iovec *siov, unsigned int soffset, + unsigned int nob) +{ + struct iovec 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) +{ + struct iovec 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) +{ + struct iovec 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) +{ + struct iovec siov = {/* .iov_base = */ src, /* .iov_len = */ slen}; + lnet_copy_iov2kiov(ndiov, dkiov, doffset, + 1, &siov, soffset, nob); +} + +void lnet_me_unlink(lnet_me_t *me); + +void lnet_md_unlink(lnet_libmd_t *md); +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, + __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_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); + +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); +void lnet_debug_peer(lnet_nid_t nid); + +#ifndef __KERNEL__ +static inline int +lnet_parse_int_tunable(int *value, char *name) +{ + 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; +} +#endif -/* - * When the NAL detects an incoming message, it should call - * lib_parse() decode it. The NAL callbacks will be handed - * the private cookie as a way for the NAL to maintain state - * about which transaction is being processed. An extra parameter, - * lib_cookie will contain the necessary information for - * finalizing the message. - * - * After it has finished the handling the message, it should - * call lib_finalize() with the lib_cookie parameter. - * Call backs will be made to write events, send acks or - * replies and so on. - */ -extern int lib_parse(nal_cb_t * nal, ptl_hdr_t * hdr, void *private); -extern int lib_finalize(nal_cb_t * nal, void *private, lib_msg_t * msg); -extern lib_msg_t *lib_fake_reply_msg (nal_cb_t *nal, ptl_nid_t peer_nid, - lib_md_t *getmd); -extern void print_hdr(nal_cb_t * nal, ptl_hdr_t * hdr); - -extern ptl_size_t lib_iov_nob (int niov, struct iovec *iov); -extern void lib_copy_iov2buf (char *dest, int niov, struct iovec *iov, ptl_size_t len); -extern void lib_copy_buf2iov (int niov, struct iovec *iov, char *dest, ptl_size_t len); - -extern ptl_size_t lib_kiov_nob (int niov, ptl_kiov_t *iov); -extern void lib_copy_kiov2buf (char *dest, int niov, ptl_kiov_t *iov, ptl_size_t len); -extern void lib_copy_buf2kiov (int niov, ptl_kiov_t *iov, char *src, ptl_size_t len); -extern void lib_assert_wire_constants (void); - -extern void lib_recv (nal_cb_t *nal, void *private, lib_msg_t *msg, lib_md_t *md, - ptl_size_t offset, ptl_size_t mlen, ptl_size_t rlen); -extern int lib_send (nal_cb_t *nal, void *private, lib_msg_t *msg, - ptl_hdr_t *hdr, int type, ptl_nid_t nid, ptl_pid_t pid, - lib_md_t *md, ptl_size_t offset, ptl_size_t len); - -extern void lib_md_deconstruct(nal_cb_t * nal, lib_md_t * md_in, - ptl_md_t * md_out); -extern void lib_md_unlink(nal_cb_t * nal, lib_md_t * md_in); -extern void lib_me_unlink(nal_cb_t * nal, lib_me_t * me_in); #endif