/* -*- 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 <asm/page.h>
-# include <linux/string.h>
+#if defined(__linux__)
+#include <lnet/linux/lib-lnet.h>
+#elif defined(__APPLE__)
+#include <lnet/darwin/lib-lnet.h>
+#elif defined(__WINNT__)
+#include <lnet/winnt/lib-lnet.h>
#else
-# include <portals/list.h>
-# include <string.h>
+#error Unsupported Operating System
#endif
-#include <portals/types.h>
-#include <linux/kp30.h>
-#include <portals/p30.h>
-#include <portals/errno.h>
-#include <portals/lib-types.h>
-#include <portals/lib-nal.h>
-#include <portals/lib-dispatch.h>
-static inline int ptl_is_wire_handle_none (ptl_handle_wire_t *wh)
+#include <libcfs/libcfs.h>
+#include <lnet/types.h>
+#include <lnet/lnet.h>
+#include <lnet/lib-types.h>
+
+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
git://git.whamcloud.com / fs / lustre-release.git / blobdiff