| /* |
| * 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 (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
| * Use is subject to license terms. |
| * |
| * Copyright (c) 2012, Intel Corporation. |
| */ |
| /* |
| * 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 __LNET_LIB_LNET_H__ |
| #define __LNET_LIB_LNET_H__ |
| |
| #include <linux/lnet/linux/lib-lnet.h> |
| |
| #include <linux/libcfs/libcfs.h> |
| #include <linux/lnet/types.h> |
| #include <linux/lnet/lnet.h> |
| #include <linux/lnet/lib-types.h> |
| |
| extern lnet_t the_lnet; /* THE network */ |
| |
| #if 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_wire_handle_none (lnet_handle_wire_t *wh) |
| { |
| return (wh->wh_interface_cookie == LNET_WIRE_HANDLE_COOKIE_NONE && |
| wh->wh_object_cookie == LNET_WIRE_HANDLE_COOKIE_NONE); |
| } |
| |
| 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)); |
| } |
| |
| 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)); |
| } |
| |
| #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) |
| { |
| 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) |
| |
| |
| #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 |
| |
| /* these are only used by code with LNET_USE_LIB_FREELIST, but we still |
| * exported them to !LNET_USE_LIB_FREELIST for easy implemetation */ |
| #define LNET_FL_MAX_MES 2048 |
| #define LNET_FL_MAX_MDS 2048 |
| #define LNET_FL_MAX_EQS 512 |
| #define LNET_FL_MAX_MSGS 2048 /* Outstanding messages */ |
| |
| #ifdef LNET_USE_LIB_FREELIST |
| |
| int lnet_freelist_init(lnet_freelist_t *fl, int n, int size); |
| 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; |
| |
| if (list_empty (&fl->fl_list)) |
| return (NULL); |
| |
| 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 = 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 resource lock held */ |
| struct lnet_res_container *rec = &the_lnet.ln_eq_container; |
| lnet_eq_t *eq; |
| |
| LASSERT(LNET_CPT_NUMBER == 1); |
| |
| lnet_res_lock(0); |
| eq = (lnet_eq_t *)lnet_freelist_alloc(&rec->rec_freelist); |
| lnet_res_unlock(0); |
| |
| return eq; |
| } |
| |
| static inline void |
| 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_res_lock(0); |
| lnet_eq_free_locked(eq); |
| 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_containers[0]; |
| lnet_libmd_t *md; |
| |
| LASSERT(LNET_CPT_NUMBER == 1); |
| |
| lnet_res_lock(0); |
| md = (lnet_libmd_t *)lnet_freelist_alloc(&rec->rec_freelist); |
| lnet_res_unlock(0); |
| |
| if (md != NULL) |
| INIT_LIST_HEAD(&md->md_list); |
| |
| return md; |
| } |
| |
| 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_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_res_lock(0); |
| lnet_md_free_locked(md); |
| 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_containers[0]; |
| lnet_me_t *me; |
| |
| LASSERT(LNET_CPT_NUMBER == 1); |
| |
| lnet_res_lock(0); |
| me = (lnet_me_t *)lnet_freelist_alloc(&rec->rec_freelist); |
| lnet_res_unlock(0); |
| |
| return me; |
| } |
| |
| 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_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_res_lock(0); |
| lnet_me_free_locked(me); |
| 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_containers[0]; |
| lnet_msg_t *msg; |
| |
| LASSERT(LNET_CPT_NUMBER == 1); |
| |
| lnet_net_lock(0); |
| msg = (lnet_msg_t *)lnet_freelist_alloc(&msc->msc_freelist); |
| lnet_net_unlock(0); |
| |
| if (msg != NULL) { |
| /* NULL pointers, clear flags etc */ |
| memset(msg, 0, sizeof(*msg)); |
| } |
| return msg; |
| } |
| |
| 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_containers[0]; |
| |
| LASSERT(LNET_CPT_NUMBER == 1); |
| LASSERT(!msg->msg_onactivelist); |
| lnet_freelist_free(&msc->msc_freelist, msg); |
| } |
| |
| static inline void |
| lnet_msg_free (lnet_msg_t *msg) |
| { |
| lnet_net_lock(0); |
| lnet_msg_free_locked(msg); |
| lnet_net_unlock(0); |
| } |
| |
| #else /* !LNET_USE_LIB_FREELIST */ |
| |
| static inline lnet_eq_t * |
| lnet_eq_alloc (void) |
| { |
| /* NEVER called with liblock held */ |
| lnet_eq_t *eq; |
| |
| LIBCFS_ALLOC(eq, sizeof(*eq)); |
| return (eq); |
| } |
| |
| static inline void |
| lnet_eq_free(lnet_eq_t *eq) |
| { |
| /* ALWAYS called with resource lock held */ |
| 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; |
| |
| 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; |
| INIT_LIST_HEAD(&md->md_list); |
| } |
| |
| return (md); |
| } |
| |
| static inline void |
| lnet_md_free(lnet_libmd_t *md) |
| { |
| /* ALWAYS called with resource lock 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 lnet_me_t * |
| lnet_me_alloc (void) |
| { |
| /* NEVER called with liblock held */ |
| lnet_me_t *me; |
| |
| LIBCFS_ALLOC(me, sizeof(*me)); |
| return (me); |
| } |
| |
| static inline void |
| lnet_me_free(lnet_me_t *me) |
| { |
| /* ALWAYS called with resource lock held */ |
| 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)); |
| |
| /* no need to zero, LIBCFS_ALLOC does for us */ |
| return (msg); |
| } |
| |
| static inline void |
| lnet_msg_free(lnet_msg_t *msg) |
| { |
| /* ALWAYS called with network lock held */ |
| LASSERT(!msg->msg_onactivelist); |
| LIBCFS_FREE(msg, sizeof(*msg)); |
| } |
| |
| #define lnet_eq_free_locked(eq) lnet_eq_free(eq) |
| #define lnet_md_free_locked(md) lnet_md_free(md) |
| #define lnet_me_free_locked(me) lnet_me_free(me) |
| #define lnet_msg_free_locked(msg) lnet_msg_free(msg) |
| |
| #endif /* LNET_USE_LIB_FREELIST */ |
| |
| 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) |
| { |
| if (eq == NULL) { |
| LNetInvalidateHandle(handle); |
| return; |
| } |
| |
| handle->cookie = eq->eq_lh.lh_cookie; |
| } |
| |
| static inline lnet_eq_t * |
| lnet_handle2eq(lnet_handle_eq_t *handle) |
| { |
| /* 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); |
| } |
| |
| static inline void |
| lnet_md2handle (lnet_handle_md_t *handle, lnet_libmd_t *md) |
| { |
| handle->cookie = md->md_lh.lh_cookie; |
| } |
| |
| static inline lnet_libmd_t * |
| lnet_handle2md(lnet_handle_md_t *handle) |
| { |
| /* 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_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) |
| { |
| /* ALWAYS called with resource lock held */ |
| lnet_libhandle_t *lh; |
| int cpt; |
| |
| if (wh->wh_interface_cookie != the_lnet.ln_interface_cookie) |
| 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); |
| } |
| |
| static inline void |
| lnet_me2handle (lnet_handle_me_t *handle, lnet_me_t *me) |
| { |
| handle->cookie = me->me_lh.lh_cookie; |
| } |
| |
| static inline lnet_me_t * |
| lnet_handle2me(lnet_handle_me_t *handle) |
| { |
| /* 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); |
| } |
| |
| 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, int cpt) |
| { |
| 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_net_lock(0); |
| lnet_ni_addref_locked(ni, 0); |
| lnet_net_unlock(0); |
| } |
| |
| static inline void |
| lnet_ni_decref_locked(lnet_ni_t *ni, int cpt) |
| { |
| 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_net_lock(0); |
| lnet_ni_decref_locked(ni, 0); |
| lnet_net_unlock(0); |
| } |
| |
| void lnet_ni_free(lnet_ni_t *ni); |
| |
| static inline int |
| lnet_nid2peerhash(lnet_nid_t nid) |
| { |
| return cfs_hash_long(nid, LNET_PEER_HASH_BITS); |
| } |
| |
| 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 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_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); |
| int lnet_rtrpools_alloc(int im_a_router); |
| void lnet_rtrpools_free(void); |
| lnet_remotenet_t *lnet_find_net_locked (__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_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, 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); |
| |
| /* 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); |
| 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); |
| 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); |
| |
| 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, |
| 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); |
| |
| int lnet_connect(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); |
| |
| int lnet_count_acceptor_nis(void); |
| int lnet_acceptor_port(void); |
| |
| 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); |
| void lnet_swap_pinginfo(lnet_ping_info_t *info); |
| |
| 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, int cpt); |
| lnet_peer_t *lnet_find_peer_locked(struct lnet_peer_table *ptable, |
| lnet_nid_t nid); |
| void lnet_peer_tables_cleanup(void); |
| void lnet_peer_tables_destroy(void); |
| int lnet_peer_tables_create(void); |
| void lnet_debug_peer(lnet_nid_t nid); |
| |
| |
| #endif |