--- /dev/null
+/*
+ * 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/lib-lnet.h"
+#include "../libcfs/libcfs.h"
+#include "types.h"
+#include "lnet.h"
+#include "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 implementation */
+#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++;
+}
+
+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 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 avoid_asym_router_failure;
+
+int lnet_cpt_of_nid_locked(lnet_nid_t nid);
+int lnet_cpt_of_nid(lnet_nid_t nid);
+lnet_ni_t *lnet_nid2ni_locked(lnet_nid_t nid, int cpt);
+lnet_ni_t *lnet_net2ni_locked(__u32 net, int cpt);
+lnet_ni_t *lnet_net2ni(__u32 net);
+
+int lnet_notify(lnet_ni_t *ni, lnet_nid_t peer, int alive, unsigned long when);
+void lnet_notify_locked(lnet_peer_t *lp, int notifylnd, int alive,
+ unsigned long when);
+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, __u32 *priority);
+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 kvec *iov);
+int lnet_extract_iov(int dst_niov, struct kvec *dst,
+ int src_niov, struct kvec *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 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 kvec *siov, unsigned int soffset,
+ unsigned int nob)
+{
+ 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)
+{
+ 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 kvec *diov, unsigned int doffset,
+ int slen, void *src, unsigned int soffset, unsigned int nob)
+{
+ 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)
+{
+ struct kvec 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(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);
+
+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_router_ni_update_locked(lnet_peer_t *gw, __u32 net);
+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);
+
+static inline void lnet_peer_set_alive(lnet_peer_t *lp)
+{
+ lp->lp_last_alive = lp->lp_last_query = get_seconds();
+ if (!lp->lp_alive)
+ lnet_notify_locked(lp, 0, 1, lp->lp_last_alive);
+}
+
+
+#endif
Code Review / kvmfornfv.git / blobdiff