/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (c) 2001-2003 Cluster File Systems, Inc.
+ * GPL HEADER START
*
- * This file is part of Lustre, http://www.sf.net/projects/lustre/
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * 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.
*
- * Lustre 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 for more details.
+ * 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
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 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.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
#define DEBUG_SUBSYSTEM S_LNET
CFS_MODULE_PARM(routes, "s", charp, 0444,
"routes to non-local networks");
-static char *portals_compatibility = "none";
-CFS_MODULE_PARM(portals_compatibility, "s", charp, 0444,
- "wire protocol compatibility: 'strong'|'weak'|'none'");
-
char *
lnet_get_routes(void)
{
"'ip2nets' but not both at once\n");
return NULL;
}
-
+
if (*ip2nets != 0) {
rc = lnet_parse_ip2nets(&nets, ip2nets);
return (rc == 0) ? nets : NULL;
return "tcp";
}
-int
-lnet_get_portals_compatibility(void)
-{
- if (!strcmp(portals_compatibility, "none")) {
- return 0;
- }
-
- if (!strcmp(portals_compatibility, "weak")) {
- return 1;
- LCONSOLE_WARN("Starting in weak portals-compatible mode\n");
- }
-
- if (!strcmp(portals_compatibility, "strong")) {
- return 2;
- LCONSOLE_WARN("Starting in strong portals-compatible mode\n");
- }
-
- LCONSOLE_ERROR_MSG(0x102, "portals_compatibility=\"%s\" not supported\n",
- portals_compatibility);
- return -EINVAL;
-}
-
void
lnet_init_locks(void)
{
- spin_lock_init (&the_lnet.ln_lock);
+ cfs_spin_lock_init (&the_lnet.ln_lock);
cfs_waitq_init (&the_lnet.ln_waitq);
- init_mutex(&the_lnet.ln_lnd_mutex);
- init_mutex(&the_lnet.ln_api_mutex);
+ cfs_init_mutex(&the_lnet.ln_lnd_mutex);
+ cfs_init_mutex(&the_lnet.ln_api_mutex);
}
void
lnet_get_routes(void)
{
char *str = getenv("LNET_ROUTES");
-
+
return (str == NULL) ? "" : str;
}
int len;
int nob;
int rc;
- struct list_head *tmp;
+ cfs_list_t *tmp;
#ifdef NOT_YET
if (networks != NULL && ip2nets != NULL) {
str = default_networks;
*str = 0;
sep = "";
-
- list_for_each (tmp, &the_lnet.ln_lnds) {
- lnd_t *lnd = list_entry(tmp, lnd_t, lnd_list);
-
- nob = snprintf(str, len, "%s%s", sep,
- libcfs_lnd2str(lnd->lnd_type));
- len -= nob;
- if (len < 0) {
- /* overflowed the string; leave it where it was */
- *str = 0;
- break;
- }
-
- str += nob;
- sep = ",";
+
+ cfs_list_for_each (tmp, &the_lnet.ln_lnds) {
+ lnd_t *lnd = cfs_list_entry(tmp, lnd_t, lnd_list);
+
+ nob = snprintf(str, len, "%s%s", sep,
+ libcfs_lnd2str(lnd->lnd_type));
+ len -= nob;
+ if (len < 0) {
+ /* overflowed the string; leave it where it was */
+ *str = 0;
+ break;
+ }
+
+ str += nob;
+ sep = ",";
}
return default_networks;
}
-int
-lnet_get_portals_compatibility(void)
-{
- return 0;
-}
-
# ifndef HAVE_LIBPTHREAD
void lnet_init_locks(void)
}
lnd_t *
-lnet_find_lnd_by_type (int type)
+lnet_find_lnd_by_type (int type)
{
lnd_t *lnd;
- struct list_head *tmp;
+ cfs_list_t *tmp;
/* holding lnd mutex */
- list_for_each (tmp, &the_lnet.ln_lnds) {
- lnd = list_entry(tmp, lnd_t, lnd_list);
+ cfs_list_for_each (tmp, &the_lnet.ln_lnds) {
+ lnd = cfs_list_entry(tmp, lnd_t, lnd_list);
- if (lnd->lnd_type == type)
+ if ((int)lnd->lnd_type == type)
return lnd;
}
-
+
return NULL;
}
LASSERT (the_lnet.ln_init);
LASSERT (libcfs_isknown_lnd(lnd->lnd_type));
LASSERT (lnet_find_lnd_by_type(lnd->lnd_type) == NULL);
-
- list_add_tail (&lnd->lnd_list, &the_lnet.ln_lnds);
+
+ cfs_list_add_tail (&lnd->lnd_list, &the_lnet.ln_lnds);
lnd->lnd_refcount = 0;
CDEBUG(D_NET, "%s LND registered\n", libcfs_lnd2str(lnd->lnd_type));
LASSERT (the_lnet.ln_init);
LASSERT (lnet_find_lnd_by_type(lnd->lnd_type) == lnd);
LASSERT (lnd->lnd_refcount == 0);
-
- list_del (&lnd->lnd_list);
+
+ cfs_list_del (&lnd->lnd_list);
CDEBUG(D_NET, "%s LND unregistered\n", libcfs_lnd2str(lnd->lnd_type));
LNET_MUTEX_UP(&the_lnet.ln_lnd_mutex);
do
{
memset (space, 0, size);
- list_add ((struct list_head *)space, &fl->fl_list);
+ cfs_list_add ((cfs_list_t *)space, &fl->fl_list);
space += size;
} while (--n != 0);
void
lnet_freelist_fini (lnet_freelist_t *fl)
{
- struct list_head *el;
+ cfs_list_t *el;
int count;
if (fl->fl_nobjs == 0)
LASSERT (count == fl->fl_nobjs);
LIBCFS_FREE(fl->fl_objs, fl->fl_nobjs * fl->fl_objsize);
- memset (fl, 0, sizeof (fl));
+ memset (fl, 0, sizeof (*fl));
}
int
int rc = gettimeofday (&tv, NULL);
LASSERT (rc == 0);
#else
- do_gettimeofday(&tv);
+ cfs_gettimeofday(&tv);
#endif
cookie = tv.tv_sec;
cookie *= 1000000;
}
int
-lnet_setup_handle_hash (void)
+lnet_setup_handle_hash (void)
{
int i;
-
+
/* Arbitrary choice of hash table size */
#ifdef __KERNEL__
- the_lnet.ln_lh_hash_size = CFS_PAGE_SIZE / sizeof (struct list_head);
+ the_lnet.ln_lh_hash_size =
+ (2 * CFS_PAGE_SIZE) / sizeof (cfs_list_t);
#else
the_lnet.ln_lh_hash_size = (MAX_MES + MAX_MDS + MAX_EQS)/4;
#endif
LIBCFS_ALLOC(the_lnet.ln_lh_hash_table,
- the_lnet.ln_lh_hash_size * sizeof (struct list_head));
+ the_lnet.ln_lh_hash_size * sizeof (cfs_list_t));
if (the_lnet.ln_lh_hash_table == NULL)
return (-ENOMEM);
-
+
for (i = 0; i < the_lnet.ln_lh_hash_size; i++)
CFS_INIT_LIST_HEAD (&the_lnet.ln_lh_hash_table[i]);
the_lnet.ln_next_object_cookie = LNET_COOKIE_TYPES;
-
+
return (0);
}
{
if (the_lnet.ln_lh_hash_table == NULL)
return;
-
+
LIBCFS_FREE(the_lnet.ln_lh_hash_table,
- the_lnet.ln_lh_hash_size * sizeof (struct list_head));
+ the_lnet.ln_lh_hash_size * sizeof (cfs_list_t));
}
lnet_libhandle_t *
-lnet_lookup_cookie (__u64 cookie, int type)
+lnet_lookup_cookie (__u64 cookie, int type)
{
/* ALWAYS called with LNET_LOCK held */
- struct list_head *list;
- struct list_head *el;
+ cfs_list_t *list;
+ cfs_list_t *el;
unsigned int hash;
if ((cookie & (LNET_COOKIE_TYPES - 1)) != type)
return (NULL);
-
- hash = ((unsigned int)cookie) % the_lnet.ln_lh_hash_size;
+
+ hash = ((unsigned int)(cookie >> LNET_COOKIE_TYPE_BITS)) % the_lnet.ln_lh_hash_size;
list = &the_lnet.ln_lh_hash_table[hash];
-
- list_for_each (el, list) {
- lnet_libhandle_t *lh = list_entry (el, lnet_libhandle_t,
- lh_hash_chain);
-
+
+ cfs_list_for_each (el, list) {
+ lnet_libhandle_t *lh = cfs_list_entry (el, lnet_libhandle_t,
+ lh_hash_chain);
+
if (lh->lh_cookie == cookie)
return (lh);
}
-
+
return (NULL);
}
void
-lnet_initialise_handle (lnet_libhandle_t *lh, int type)
+lnet_initialise_handle (lnet_libhandle_t *lh, int type)
{
/* ALWAYS called with LNET_LOCK held */
unsigned int hash;
LASSERT (type >= 0 && type < LNET_COOKIE_TYPES);
lh->lh_cookie = the_lnet.ln_next_object_cookie | type;
the_lnet.ln_next_object_cookie += LNET_COOKIE_TYPES;
-
- hash = ((unsigned int)lh->lh_cookie) % the_lnet.ln_lh_hash_size;
- list_add (&lh->lh_hash_chain, &the_lnet.ln_lh_hash_table[hash]);
+
+ hash = ((unsigned int)(lh->lh_cookie >> LNET_COOKIE_TYPE_BITS)) % the_lnet.ln_lh_hash_size;
+ cfs_list_add (&lh->lh_hash_chain, &the_lnet.ln_lh_hash_table[hash]);
}
void
lnet_invalidate_handle (lnet_libhandle_t *lh)
{
/* ALWAYS called with LNET_LOCK held */
- list_del (&lh->lh_hash_chain);
+ cfs_list_del (&lh->lh_hash_chain);
+}
+
+cfs_list_t *
+lnet_portal_mhash_alloc(void)
+{
+ cfs_list_t *mhash;
+ int i;
+
+ LIBCFS_ALLOC(mhash, sizeof(cfs_list_t) * LNET_PORTAL_HASH_SIZE);
+ if (mhash == NULL)
+ return NULL;
+
+ for (i = 0; i < LNET_PORTAL_HASH_SIZE; i++)
+ CFS_INIT_LIST_HEAD(&mhash[i]);
+
+ return mhash;
+}
+
+void
+lnet_portal_mhash_free(cfs_list_t *mhash)
+{
+ int i;
+
+ for (i = 0; i < LNET_PORTAL_HASH_SIZE; i++) {
+ while (!cfs_list_empty(&mhash[i])) {
+ lnet_me_t *me = cfs_list_entry(mhash[i].next,
+ lnet_me_t, me_list);
+ CERROR ("Active ME %p on exit portal mhash\n", me);
+ cfs_list_del(&me->me_list);
+ lnet_me_free(me);
+ }
+ }
+ LIBCFS_FREE(mhash, sizeof(cfs_list_t) * LNET_PORTAL_HASH_SIZE);
}
int
#ifdef __KERNEL__
int i;
- the_lnet.ln_nfinalizers = num_online_cpus();
+ the_lnet.ln_nfinalizers = (int) cfs_num_online_cpus();
LIBCFS_ALLOC(the_lnet.ln_finalizers,
- the_lnet.ln_nfinalizers *
+ the_lnet.ln_nfinalizers *
sizeof(*the_lnet.ln_finalizers));
if (the_lnet.ln_finalizers == NULL) {
CERROR("Can't allocate ln_finalizers\n");
{
#ifdef __KERNEL__
int i;
-
+
for (i = 0; i < the_lnet.ln_nfinalizers; i++)
LASSERT (the_lnet.ln_finalizers[i] == NULL);
#else
LASSERT (!the_lnet.ln_finalizing);
#endif
- LASSERT (list_empty(&the_lnet.ln_finalizeq));
+ LASSERT (cfs_list_empty(&the_lnet.ln_finalizeq));
}
#ifndef __KERNEL__
-/* Temporary workaround to allow uOSS and test programs force server
+/**
+ * Reserved API - do not use.
+ * Temporary workaround to allow uOSS and test programs force server
* mode in userspace. See comments near ln_server_mode_flag in
* lnet/lib-types.h */
lnet_server_mode() {
the_lnet.ln_server_mode_flag = 1;
}
-#endif
+#endif
int
lnet_prepare(lnet_pid_t requested_pid)
#else
if (the_lnet.ln_server_mode_flag) {/* server case (uOSS) */
LASSERT ((requested_pid & LNET_PID_USERFLAG) == 0);
-
+
if (cfs_curproc_uid())/* Only root can run user-space server */
return -EPERM;
the_lnet.ln_pid = requested_pid;
/* My PID must be unique on this node and flag I'm userspace */
the_lnet.ln_pid = getpid() | LNET_PID_USERFLAG;
- }
+ }
#endif
rc = lnet_descriptor_setup();
if (rc != 0)
goto failed0;
- memset(&the_lnet.ln_counters, 0,
+ memset(&the_lnet.ln_counters, 0,
sizeof(the_lnet.ln_counters));
CFS_INIT_LIST_HEAD (&the_lnet.ln_active_msgs);
goto failed2;
the_lnet.ln_nportals = MAX_PORTALS;
- LIBCFS_ALLOC(the_lnet.ln_portals,
- the_lnet.ln_nportals *
+ LIBCFS_ALLOC(the_lnet.ln_portals,
+ the_lnet.ln_nportals *
sizeof(*the_lnet.ln_portals));
if (the_lnet.ln_portals == NULL) {
rc = -ENOMEM;
}
for (i = 0; i < the_lnet.ln_nportals; i++) {
- CFS_INIT_LIST_HEAD(&(the_lnet.ln_portals[i].ptl_ml));
+ CFS_INIT_LIST_HEAD(&(the_lnet.ln_portals[i].ptl_mlist));
CFS_INIT_LIST_HEAD(&(the_lnet.ln_portals[i].ptl_msgq));
the_lnet.ln_portals[i].ptl_options = 0;
}
return 0;
-
+
failed3:
lnet_fini_finalizers();
failed2:
lnet_unprepare (void)
{
int idx;
-
+
/* NB no LNET_LOCK since this is the last reference. All LND instances
* have shut down already, so it is safe to unlink and free all
* descriptors, even those that appear committed to a network op (eg MD
lnet_fail_nid(LNET_NID_ANY, 0);
- LASSERT (list_empty(&the_lnet.ln_test_peers));
+ LASSERT (cfs_list_empty(&the_lnet.ln_test_peers));
LASSERT (the_lnet.ln_refcount == 0);
- LASSERT (list_empty(&the_lnet.ln_nis));
- LASSERT (list_empty(&the_lnet.ln_zombie_nis));
+ LASSERT (cfs_list_empty(&the_lnet.ln_nis));
+ LASSERT (cfs_list_empty(&the_lnet.ln_zombie_nis));
LASSERT (the_lnet.ln_nzombie_nis == 0);
-
+
for (idx = 0; idx < the_lnet.ln_nportals; idx++) {
- LASSERT (list_empty(&the_lnet.ln_portals[idx].ptl_msgq));
+ lnet_portal_t *ptl = &the_lnet.ln_portals[idx];
- while (!list_empty (&the_lnet.ln_portals[idx].ptl_ml)) {
- lnet_me_t *me = list_entry (the_lnet.ln_portals[idx].ptl_ml.next,
- lnet_me_t, me_list);
+ LASSERT (cfs_list_empty(&ptl->ptl_msgq));
- CERROR ("Active me %p on exit\n", me);
- list_del (&me->me_list);
+ while (!cfs_list_empty(&ptl->ptl_mlist)) {
+ lnet_me_t *me = cfs_list_entry(ptl->ptl_mlist.next,
+ lnet_me_t, me_list);
+ CERROR ("Active ME %p on exit\n", me);
+ cfs_list_del (&me->me_list);
lnet_me_free (me);
}
+
+ if (ptl->ptl_mhash != NULL) {
+ LASSERT (lnet_portal_is_unique(ptl));
+ lnet_portal_mhash_free(ptl->ptl_mhash);
+ }
}
- while (!list_empty (&the_lnet.ln_active_mds)) {
- lnet_libmd_t *md = list_entry (the_lnet.ln_active_mds.next,
- lnet_libmd_t, md_list);
+ while (!cfs_list_empty (&the_lnet.ln_active_mds)) {
+ lnet_libmd_t *md = cfs_list_entry (the_lnet.ln_active_mds.next,
+ lnet_libmd_t, md_list);
- CERROR ("Active md %p on exit\n", md);
- list_del (&md->md_list);
+ CERROR ("Active MD %p on exit\n", md);
+ cfs_list_del_init (&md->md_list);
lnet_md_free (md);
}
- while (!list_empty (&the_lnet.ln_active_eqs)) {
- lnet_eq_t *eq = list_entry (the_lnet.ln_active_eqs.next,
- lnet_eq_t, eq_list);
+ while (!cfs_list_empty (&the_lnet.ln_active_eqs)) {
+ lnet_eq_t *eq = cfs_list_entry (the_lnet.ln_active_eqs.next,
+ lnet_eq_t, eq_list);
- CERROR ("Active eq %p on exit\n", eq);
- list_del (&eq->eq_list);
+ CERROR ("Active EQ %p on exit\n", eq);
+ cfs_list_del (&eq->eq_list);
lnet_eq_free (eq);
}
- while (!list_empty (&the_lnet.ln_active_msgs)) {
- lnet_msg_t *msg = list_entry (the_lnet.ln_active_msgs.next,
- lnet_msg_t, msg_activelist);
+ while (!cfs_list_empty (&the_lnet.ln_active_msgs)) {
+ lnet_msg_t *msg = cfs_list_entry (the_lnet.ln_active_msgs.next,
+ lnet_msg_t, msg_activelist);
CERROR ("Active msg %p on exit\n", msg);
LASSERT (msg->msg_onactivelist);
msg->msg_onactivelist = 0;
- list_del (&msg->msg_activelist);
+ cfs_list_del (&msg->msg_activelist);
lnet_msg_free (msg);
}
lnet_ni_t *
lnet_net2ni_locked (__u32 net)
{
- struct list_head *tmp;
+ cfs_list_t *tmp;
lnet_ni_t *ni;
- list_for_each (tmp, &the_lnet.ln_nis) {
- ni = list_entry(tmp, lnet_ni_t, ni_list);
+ cfs_list_for_each (tmp, &the_lnet.ln_nis) {
+ ni = cfs_list_entry(tmp, lnet_ni_t, ni_list);
- if (lnet_ptlcompat_matchnet(LNET_NIDNET(ni->ni_nid), net)) {
+ if (LNET_NIDNET(ni->ni_nid) == net) {
lnet_ni_addref_locked(ni);
return ni;
}
}
-
+
return NULL;
}
lnet_islocalnet (__u32 net)
{
lnet_ni_t *ni;
-
+
LNET_LOCK();
ni = lnet_net2ni_locked(net);
if (ni != NULL)
lnet_ni_t *
lnet_nid2ni_locked (lnet_nid_t nid)
{
- struct list_head *tmp;
+ cfs_list_t *tmp;
lnet_ni_t *ni;
- list_for_each (tmp, &the_lnet.ln_nis) {
- ni = list_entry(tmp, lnet_ni_t, ni_list);
+ cfs_list_for_each (tmp, &the_lnet.ln_nis) {
+ ni = cfs_list_entry(tmp, lnet_ni_t, ni_list);
- if (lnet_ptlcompat_matchnid(ni->ni_nid, nid)) {
+ if (ni->ni_nid == nid) {
lnet_ni_addref_locked(ni);
return ni;
}
}
-
+
return NULL;
}
lnet_islocalnid (lnet_nid_t nid)
{
lnet_ni_t *ni;
-
+
LNET_LOCK();
ni = lnet_nid2ni_locked(nid);
if (ni != NULL)
}
int
-lnet_count_acceptor_nis (lnet_ni_t **first_ni)
+lnet_count_acceptor_nis (void)
{
- /* Return the # of NIs that need the acceptor. Return the first one in
- * *first_ni so the acceptor can pass it connections "blind" to retain
- * binary compatibility. */
- int count = 0;
- struct list_head *tmp;
- lnet_ni_t *ni;
+ /* Return the # of NIs that need the acceptor. */
+ int count = 0;
+#if defined(__KERNEL__) || defined(HAVE_LIBPTHREAD)
+ cfs_list_t *tmp;
+ lnet_ni_t *ni;
LNET_LOCK();
- list_for_each (tmp, &the_lnet.ln_nis) {
- ni = list_entry(tmp, lnet_ni_t, ni_list);
-
- if (ni->ni_lnd->lnd_accept != NULL) {
- /* This LND uses the acceptor */
- if (count == 0 && first_ni != NULL) {
- lnet_ni_addref_locked(ni);
- *first_ni = ni;
- }
+ cfs_list_for_each (tmp, &the_lnet.ln_nis) {
+ ni = cfs_list_entry(tmp, lnet_ni_t, ni_list);
+
+ if (ni->ni_lnd->lnd_accept != NULL)
count++;
- }
}
-
+
LNET_UNLOCK();
+
+#endif /* defined(__KERNEL__) || defined(HAVE_LIBPTHREAD) */
return count;
}
/* All quiet on the API front */
LASSERT (!the_lnet.ln_shutdown);
LASSERT (the_lnet.ln_refcount == 0);
- LASSERT (list_empty(&the_lnet.ln_zombie_nis));
+ LASSERT (cfs_list_empty(&the_lnet.ln_zombie_nis));
LASSERT (the_lnet.ln_nzombie_nis == 0);
- LASSERT (list_empty(&the_lnet.ln_remote_nets));
+ LASSERT (cfs_list_empty(&the_lnet.ln_remote_nets));
LNET_LOCK();
the_lnet.ln_shutdown = 1; /* flag shutdown */
/* Unlink NIs from the global table */
- while (!list_empty(&the_lnet.ln_nis)) {
- ni = list_entry(the_lnet.ln_nis.next,
- lnet_ni_t, ni_list);
- list_del (&ni->ni_list);
+ while (!cfs_list_empty(&the_lnet.ln_nis)) {
+ ni = cfs_list_entry(the_lnet.ln_nis.next,
+ lnet_ni_t, ni_list);
+ cfs_list_del (&ni->ni_list);
the_lnet.ln_nzombie_nis++;
lnet_ni_decref_locked(ni); /* drop apini's ref */
i = 2;
while (the_lnet.ln_nzombie_nis != 0) {
- while (list_empty(&the_lnet.ln_zombie_nis)) {
+ while (cfs_list_empty(&the_lnet.ln_zombie_nis)) {
LNET_UNLOCK();
++i;
if ((i & (-i)) == i)
LNET_LOCK();
}
- ni = list_entry(the_lnet.ln_zombie_nis.next,
- lnet_ni_t, ni_list);
- list_del(&ni->ni_list);
+ ni = cfs_list_entry(the_lnet.ln_zombie_nis.next,
+ lnet_ni_t, ni_list);
+ cfs_list_del(&ni->ni_list);
ni->ni_lnd->lnd_refcount--;
LNET_UNLOCK();
islo = ni->ni_lnd->lnd_type == LOLND;
- LASSERT (!in_interrupt ());
+ LASSERT (!cfs_in_interrupt ());
(ni->ni_lnd->lnd_shutdown)(ni);
/* can't deref lnd anymore now; it might have unregistered
{
lnd_t *lnd;
lnet_ni_t *ni;
- struct list_head nilist;
+ cfs_list_t nilist;
int rc = 0;
int lnd_type;
int nicount = 0;
char *nets = lnet_get_networks();
- INIT_LIST_HEAD(&nilist);
+ CFS_INIT_LIST_HEAD(&nilist);
if (nets == NULL)
goto failed;
if (rc != 0)
goto failed;
- while (!list_empty(&nilist)) {
- ni = list_entry(nilist.next, lnet_ni_t, ni_list);
+ while (!cfs_list_empty(&nilist)) {
+ ni = cfs_list_entry(nilist.next, lnet_ni_t, ni_list);
lnd_type = LNET_NETTYP(LNET_NIDNET(ni->ni_nid));
LASSERT (libcfs_isknown_lnd(lnd_type));
#ifdef __KERNEL__
if (lnd == NULL) {
LNET_MUTEX_UP(&the_lnet.ln_lnd_mutex);
- rc = request_module(libcfs_lnd2modname(lnd_type));
+ rc = cfs_request_module("%s",
+ libcfs_lnd2modname(lnd_type));
LNET_MUTEX_DOWN(&the_lnet.ln_lnd_mutex);
lnd = lnet_find_lnd_by_type(lnd_type);
CERROR("Can't load LND %s, module %s, rc=%d\n",
libcfs_lnd2str(lnd_type),
libcfs_lnd2modname(lnd_type), rc);
-#ifndef CONFIG_KMOD
+#ifndef HAVE_MODULE_LOADING_SUPPORT
LCONSOLE_ERROR_MSG(0x104, "Your kernel must be "
- "compiled with CONFIG_KMOD set for "
- "automatic module loading.");
+ "compiled with kernel module "
+ "loading support.");
#endif
goto failed;
}
goto failed;
}
- list_del(&ni->ni_list);
+ LASSERT (ni->ni_peertimeout <= 0 || lnd->lnd_query != NULL);
+
+ cfs_list_del(&ni->ni_list);
LNET_LOCK();
- list_add_tail(&ni->ni_list, &the_lnet.ln_nis);
+ cfs_list_add_tail(&ni->ni_list, &the_lnet.ln_nis);
LNET_UNLOCK();
if (lnd->lnd_type == LOLND) {
ni->ni_txcredits = ni->ni_mintxcredits = ni->ni_maxtxcredits;
- CDEBUG(D_LNI, "Added LNI %s [%d/%d]\n",
+ CDEBUG(D_LNI, "Added LNI %s [%d/%d/%d/%d]\n",
libcfs_nid2str(ni->ni_nid),
- ni->ni_peertxcredits, ni->ni_txcredits);
-
- /* Handle nidstrings for network 0 just like this one */
- if (the_lnet.ln_ptlcompat > 0) {
- if (nicount > 0) {
- LCONSOLE_ERROR_MSG(0x108, "Can't run > 1 "
- "network when portals_compatibility is "
- "set\n");
- goto failed;
- }
- libcfs_setnet0alias(lnd->lnd_type);
- }
-
+ ni->ni_peertxcredits, ni->ni_txcredits,
+ ni->ni_peerrtrcredits, ni->ni_peertimeout);
+
nicount++;
}
failed:
lnet_shutdown_lndnis();
- while (!list_empty(&nilist)) {
- ni = list_entry(nilist.next, lnet_ni_t, ni_list);
- list_del(&ni->ni_list);
+ while (!cfs_list_empty(&nilist)) {
+ ni = cfs_list_entry(nilist.next, lnet_ni_t, ni_list);
+ cfs_list_del(&ni->ni_list);
LIBCFS_FREE(ni, sizeof(*ni));
}
return -ENETDOWN;
}
+/**
+ * Initialize LNet library.
+ *
+ * Only userspace program needs to call this function - it's automatically
+ * called in the kernel at module loading time. Caller has to call LNetFini()
+ * after a call to LNetInit(), if and only if the latter returned 0. It must
+ * be called exactly once.
+ *
+ * \return 0 on success, and -ve on failures.
+ */
int
LNetInit(void)
{
- int rc;
-
lnet_assert_wire_constants ();
LASSERT (!the_lnet.ln_init);
memset(&the_lnet, 0, sizeof(the_lnet));
- rc = lnet_get_portals_compatibility();
- if (rc < 0)
- return rc;
-
lnet_init_locks();
- CFS_INIT_LIST_HEAD(&the_lnet.ln_lnds);
- the_lnet.ln_ptlcompat = rc;
the_lnet.ln_refcount = 0;
the_lnet.ln_init = 1;
+ LNetInvalidateHandle(&the_lnet.ln_rc_eqh);
+ CFS_INIT_LIST_HEAD(&the_lnet.ln_lnds);
+ CFS_INIT_LIST_HEAD(&the_lnet.ln_zombie_rcd);
#ifdef __KERNEL__
/* All LNDs apart from the LOLND are in separate modules. They
return 0;
}
+/**
+ * Finalize LNet library.
+ *
+ * Only userspace program needs to call this function. It can be called
+ * at most once.
+ *
+ * \pre LNetInit() called with success.
+ * \pre All LNet users called LNetNIFini() for matching LNetNIInit() calls.
+ */
void
LNetFini(void)
{
LASSERT (the_lnet.ln_init);
LASSERT (the_lnet.ln_refcount == 0);
- while (!list_empty(&the_lnet.ln_lnds))
- lnet_unregister_lnd(list_entry(the_lnet.ln_lnds.next,
- lnd_t, lnd_list));
+ while (!cfs_list_empty(&the_lnet.ln_lnds))
+ lnet_unregister_lnd(cfs_list_entry(the_lnet.ln_lnds.next,
+ lnd_t, lnd_list));
lnet_fini_locks();
the_lnet.ln_init = 0;
}
+/**
+ * Set LNet PID and start LNet interfaces, routing, and forwarding.
+ *
+ * Userspace program should call this after a successful call to LNetInit().
+ * Users must call this function at least once before any other functions.
+ * For each successful call there must be a corresponding call to
+ * LNetNIFini(). For subsequent calls to LNetNIInit(), \a requested_pid is
+ * ignored.
+ *
+ * The PID used by LNet may be different from the one requested.
+ * See LNetGetId().
+ *
+ * \param requested_pid PID requested by the caller.
+ *
+ * \return 0 on success, and non-zero error code on failures.
+ */
int
LNetNIInit(lnet_pid_t requested_pid)
{
goto out;
}
+ lnet_get_tunables();
+
if (requested_pid == LNET_PID_ANY) {
/* Don't instantiate LNET just for me */
rc = -ENETDOWN;
the_lnet.ln_refcount = 1;
/* Now I may use my own API functions... */
- rc = lnet_router_checker_start();
+ /* NB router checker needs the_lnet.ln_ping_info in
+ * lnet_router_checker -> lnet_update_ni_status */
+ rc = lnet_ping_target_init();
if (rc != 0)
goto failed3;
- rc = lnet_ping_target_init();
+ rc = lnet_router_checker_start();
if (rc != 0)
goto failed4;
goto out;
failed4:
- lnet_router_checker_stop();
+ lnet_ping_target_fini();
failed3:
the_lnet.ln_refcount = 0;
lnet_acceptor_stop();
return rc;
}
+/**
+ * Stop LNet interfaces, routing, and forwarding.
+ *
+ * Users must call this function once for each successful call to LNetNIInit().
+ * Once the LNetNIFini() operation has been started, the results of pending
+ * API operations are undefined.
+ *
+ * \return always 0 for current implementation.
+ */
int
LNetNIFini()
{
LASSERT (!the_lnet.ln_niinit_self);
lnet_proc_fini();
- lnet_ping_target_fini();
lnet_router_checker_stop();
+ lnet_ping_target_fini();
/* Teardown fns that use my own API functions BEFORE here */
the_lnet.ln_refcount = 0;
return 0;
}
+/**
+ * This is an ugly hack to export IOC_LIBCFS_DEBUG_PEER and
+ * IOC_LIBCFS_PORTALS_COMPATIBILITY commands to users, by tweaking the LNet
+ * internal ioctl handler.
+ *
+ * IOC_LIBCFS_PORTALS_COMPATIBILITY is now deprecated, don't use it.
+ *
+ * \param cmd IOC_LIBCFS_DEBUG_PEER to print debugging data about a peer.
+ * The data will be printed to system console. Don't use it excessively.
+ * \param arg A pointer to lnet_process_id_t, process ID of the peer.
+ *
+ * \return Always return 0 when called by users directly (i.e., not via ioctl).
+ */
int
LNetCtl(unsigned int cmd, void *arg)
{
struct libcfs_ioctl_data *data = arg;
- lnet_process_id_t id;
+ lnet_process_id_t id = {0};
lnet_ni_t *ni;
int rc;
case IOC_LIBCFS_FAIL_NID:
return lnet_fail_nid(data->ioc_nid, data->ioc_count);
-
+
case IOC_LIBCFS_ADD_ROUTE:
- rc = lnet_add_route(data->ioc_net, data->ioc_count,
+ rc = lnet_add_route(data->ioc_net, data->ioc_count,
data->ioc_nid);
return (rc != 0) ? rc : lnet_check_routes();
-
+
case IOC_LIBCFS_DEL_ROUTE:
return lnet_del_route(data->ioc_net, data->ioc_nid);
case IOC_LIBCFS_GET_ROUTE:
- return lnet_get_route(data->ioc_count,
- &data->ioc_net, &data->ioc_count,
+ return lnet_get_route(data->ioc_count,
+ &data->ioc_net, &data->ioc_count,
&data->ioc_nid, &data->ioc_flags);
case IOC_LIBCFS_NOTIFY_ROUTER:
- return lnet_notify(NULL, data->ioc_nid, data->ioc_flags,
- (time_t)data->ioc_u64[0]);
+ return lnet_notify(NULL, data->ioc_nid, data->ioc_flags,
+ cfs_time_current() -
+ cfs_time_seconds(cfs_time_current_sec() -
+ (time_t)data->ioc_u64[0]));
case IOC_LIBCFS_PORTALS_COMPATIBILITY:
- return the_lnet.ln_ptlcompat;
+ /* This can be removed once lustre stops calling it */
+ return 0;
case IOC_LIBCFS_LNET_DIST:
rc = LNetDist(data->ioc_nid, &data->ioc_nid, &data->ioc_u32[1]);
if (rc < 0 && rc != -EHOSTUNREACH)
return rc;
-
+
data->ioc_u32[0] = rc;
return 0;
return 0;
case IOC_LIBCFS_PING:
- rc = lnet_ping((lnet_process_id_t) {.nid = data->ioc_nid,
- .pid = data->ioc_u32[0]},
- data->ioc_u32[1], /* timeout */
+ id.nid = data->ioc_nid;
+ id.pid = data->ioc_u32[0];
+ rc = lnet_ping(id, data->ioc_u32[1], /* timeout */
(lnet_process_id_t *)data->ioc_pbuf1,
data->ioc_plen1/sizeof(lnet_process_id_t));
if (rc < 0)
case IOC_LIBCFS_DEBUG_PEER: {
/* CAVEAT EMPTOR: this one designed for calling directly; not
* via an ioctl */
- lnet_process_id_t *id = arg;
+ id = *((lnet_process_id_t *) arg);
- lnet_debug_peer(id->nid);
+ lnet_debug_peer(id.nid);
- ni = lnet_net2ni(LNET_NIDNET(id->nid));
+ ni = lnet_net2ni(LNET_NIDNET(id.nid));
if (ni == NULL) {
- CDEBUG(D_WARNING, "No NI for %s\n", libcfs_id2str(*id));
+ CDEBUG(D_WARNING, "No NI for %s\n", libcfs_id2str(id));
} else {
if (ni->ni_lnd->lnd_ctl == NULL) {
CDEBUG(D_WARNING, "No ctl for %s\n",
- libcfs_id2str(*id));
+ libcfs_id2str(id));
} else {
(void)ni->ni_lnd->lnd_ctl(ni, cmd, arg);
}
-
+
lnet_ni_decref(ni);
}
return 0;
}
-
+
default:
ni = lnet_net2ni(data->ioc_net);
if (ni == NULL)
/* not reached */
}
+/**
+ * Retrieve the lnet_process_id_t ID of LNet interface at \a index. Note that
+ * all interfaces share a same PID, as requested by LNetNIInit().
+ *
+ * \param index Index of the interface to look up.
+ * \param id On successful return, this location will hold the
+ * lnet_process_id_t ID of the interface.
+ *
+ * \retval 0 If an interface exists at \a index.
+ * \retval -ENOENT If no interface has been found.
+ */
int
LNetGetId(unsigned int index, lnet_process_id_t *id)
{
lnet_ni_t *ni;
- struct list_head *tmp;
+ cfs_list_t *tmp;
int rc = -ENOENT;
LASSERT (the_lnet.ln_init);
LNET_LOCK();
- list_for_each(tmp, &the_lnet.ln_nis) {
+ cfs_list_for_each(tmp, &the_lnet.ln_nis) {
if (index-- != 0)
continue;
-
- ni = list_entry(tmp, lnet_ni_t, ni_list);
+
+ ni = cfs_list_entry(tmp, lnet_ni_t, ni_list);
id->nid = ni->ni_nid;
id->pid = the_lnet.ln_pid;
return rc;
}
+/**
+ * Print a string representation of handle \a h into buffer \a str of
+ * \a len bytes.
+ */
void
LNetSnprintHandle(char *str, int len, lnet_handle_any_t h)
{
snprintf(str, len, LPX64, h.cookie);
}
-
-int
-lnet_ping_target_init(void)
+static int
+lnet_create_ping_info(void)
{
- lnet_handle_me_t meh;
- lnet_process_id_t id;
- int rc;
- int rc2;
- int n;
- int infosz;
int i;
-
+ int n;
+ int rc;
+ unsigned int infosz;
+ lnet_ni_t *ni;
+ lnet_process_id_t id;
+ lnet_ping_info_t *pinfo;
+
for (n = 0; ; n++) {
rc = LNetGetId(n, &id);
if (rc == -ENOENT)
LASSERT (rc == 0);
}
- infosz = offsetof(lnet_ping_info_t, pi_nid[n]);
- LIBCFS_ALLOC(the_lnet.ln_ping_info, infosz);
- if (the_lnet.ln_ping_info == NULL) {
+ infosz = offsetof(lnet_ping_info_t, pi_ni[n]);
+ LIBCFS_ALLOC(pinfo, infosz);
+ if (pinfo == NULL) {
CERROR("Can't allocate ping info[%d]\n", n);
return -ENOMEM;
}
- the_lnet.ln_ping_info->pi_magic = LNET_PROTO_PING_MAGIC;
- the_lnet.ln_ping_info->pi_version = LNET_PROTO_PING_VERSION;
- the_lnet.ln_ping_info->pi_pid = the_lnet.ln_pid;
- the_lnet.ln_ping_info->pi_nnids = n;
+ pinfo->pi_nnis = n;
+ pinfo->pi_pid = the_lnet.ln_pid;
+ pinfo->pi_magic = LNET_PROTO_PING_MAGIC;
+ pinfo->pi_version = LNET_PROTO_PING_VERSION;
for (i = 0; i < n; i++) {
+ lnet_ni_status_t *ns = &pinfo->pi_ni[i];
+
rc = LNetGetId(i, &id);
LASSERT (rc == 0);
- the_lnet.ln_ping_info->pi_nid[i] = id.nid;
+
+ ns->ns_nid = id.nid;
+ ns->ns_status = LNET_NI_STATUS_UP;
+
+ LNET_LOCK();
+
+ ni = lnet_nid2ni_locked(id.nid);
+ LASSERT (ni != NULL);
+ LASSERT (ni->ni_status == NULL);
+ ni->ni_status = ns;
+ lnet_ni_decref_locked(ni);
+
+ LNET_UNLOCK();
+ }
+
+ the_lnet.ln_ping_info = pinfo;
+ return 0;
+}
+
+static void
+lnet_destroy_ping_info(void)
+{
+ lnet_ni_t *ni;
+
+ LNET_LOCK();
+
+ cfs_list_for_each_entry (ni, &the_lnet.ln_nis, ni_list) {
+ ni->ni_status = NULL;
}
-
+
+ LNET_UNLOCK();
+
+ LIBCFS_FREE(the_lnet.ln_ping_info,
+ offsetof(lnet_ping_info_t,
+ pi_ni[the_lnet.ln_ping_info->pi_nnis]));
+ the_lnet.ln_ping_info = NULL;
+ return;
+}
+
+int
+lnet_ping_target_init(void)
+{
+ lnet_md_t md = {0};
+ lnet_handle_me_t meh;
+ lnet_process_id_t id;
+ int rc;
+ int rc2;
+ int infosz;
+
+ rc = lnet_create_ping_info();
+ if (rc != 0)
+ return rc;
+
/* We can have a tiny EQ since we only need to see the unlink event on
* teardown, which by definition is the last one! */
rc = LNetEQAlloc(2, LNET_EQ_HANDLER_NONE, &the_lnet.ln_ping_target_eq);
goto failed_0;
}
- rc = LNetMEAttach(LNET_RESERVED_PORTAL,
- (lnet_process_id_t){.nid = LNET_NID_ANY,
- .pid = LNET_PID_ANY},
- LNET_PROTO_PING_MATCHBITS, 0LL,
+ memset(&id, 0, sizeof(lnet_process_id_t));
+ id.nid = LNET_NID_ANY;
+ id.pid = LNET_PID_ANY;
+
+ rc = LNetMEAttach(LNET_RESERVED_PORTAL, id,
+ LNET_PROTO_PING_MATCHBITS, 0,
LNET_UNLINK, LNET_INS_AFTER,
&meh);
if (rc != 0) {
goto failed_1;
}
- rc = LNetMDAttach(meh,
- (lnet_md_t){.start = the_lnet.ln_ping_info,
- .length = infosz,
- .threshold = LNET_MD_THRESH_INF,
- .options = (LNET_MD_OP_GET |
- LNET_MD_TRUNCATE |
- LNET_MD_MANAGE_REMOTE),
- .eq_handle = the_lnet.ln_ping_target_eq},
+ /* initialize md content */
+ infosz = offsetof(lnet_ping_info_t,
+ pi_ni[the_lnet.ln_ping_info->pi_nnis]);
+ md.start = the_lnet.ln_ping_info;
+ md.length = infosz;
+ md.threshold = LNET_MD_THRESH_INF;
+ md.max_size = 0;
+ md.options = LNET_MD_OP_GET | LNET_MD_TRUNCATE |
+ LNET_MD_MANAGE_REMOTE;
+ md.user_ptr = NULL;
+ md.eq_handle = the_lnet.ln_ping_target_eq;
+
+ rc = LNetMDAttach(meh, md,
LNET_RETAIN,
&the_lnet.ln_ping_target_md);
if (rc != 0) {
rc2 = LNetEQFree(the_lnet.ln_ping_target_eq);
LASSERT (rc2 == 0);
failed_0:
- LIBCFS_FREE(the_lnet.ln_ping_info, infosz);
-
+ lnet_destroy_ping_info();
return rc;
}
rc = LNetEQFree(the_lnet.ln_ping_target_eq);
LASSERT (rc == 0);
-
- LIBCFS_FREE(the_lnet.ln_ping_info,
- offsetof(lnet_ping_info_t,
- pi_nid[the_lnet.ln_ping_info->pi_nnids]));
-
+ lnet_destroy_ping_info();
cfs_restore_sigs(blocked);
}
lnet_handle_eq_t eqh;
lnet_handle_md_t mdh;
lnet_event_t event;
+ lnet_md_t md = {0};
int which;
int unlinked = 0;
int replied = 0;
const int a_long_time = 60000; /* mS */
- int infosz = offsetof(lnet_ping_info_t, pi_nid[n_ids]);
+ int infosz = offsetof(lnet_ping_info_t, pi_ni[n_ids]);
lnet_ping_info_t *info;
lnet_process_id_t tmpid;
int i;
goto out_0;
}
- rc = LNetMDBind((lnet_md_t){.start = info,
- .length = infosz,
- .threshold = 2, /* GET/REPLY */
- .options = LNET_MD_TRUNCATE,
- .eq_handle = eqh},
- LNET_UNLINK,
- &mdh);
+ /* initialize md content */
+ md.start = info;
+ md.length = infosz;
+ md.threshold = 2; /*GET/REPLY*/
+ md.max_size = 0;
+ md.options = LNET_MD_TRUNCATE;
+ md.user_ptr = NULL;
+ md.eq_handle = eqh;
+
+ rc = LNetMDBind(md, LNET_UNLINK, &mdh);
if (rc != 0) {
CERROR("Can't bind MD: %d\n", rc);
goto out_1;
CWARN("ping %s: late network completion\n",
libcfs_id2str(id));
}
-
} else if (event.type == LNET_EVENT_REPLY) {
replied = 1;
rc = event.mlength;
}
if (info->pi_magic == __swab32(LNET_PROTO_PING_MAGIC)) {
- /* NB I might be swabbing garbage until I check below, but it
- * doesn't matter */
- __swab32s(&info->pi_version);
- __swab32s(&info->pi_pid);
- __swab32s(&info->pi_nnids);
- for (i = 0; i < info->pi_nnids && i < n_ids; i++)
- __swab64s(&info->pi_nid[i]);
-
+ lnet_swap_pinginfo(info);
} else if (info->pi_magic != LNET_PROTO_PING_MAGIC) {
CERROR("%s: Unexpected magic %08x\n",
libcfs_id2str(id), info->pi_magic);
goto out_1;
}
- if (nob < offsetof(lnet_ping_info_t, pi_nid[0])) {
- CERROR("%s: Short reply %d(%d min)\n", libcfs_id2str(id),
- nob, (int)offsetof(lnet_ping_info_t, pi_nid[0]));
+ if (nob < offsetof(lnet_ping_info_t, pi_ni[0])) {
+ CERROR("%s: Short reply %d(%d min)\n", libcfs_id2str(id),
+ nob, (int)offsetof(lnet_ping_info_t, pi_ni[0]));
goto out_1;
}
- if (info->pi_nnids < n_ids)
- n_ids = info->pi_nnids;
+ if (info->pi_nnis < n_ids)
+ n_ids = info->pi_nnis;
- if (nob < offsetof(lnet_ping_info_t, pi_nid[n_ids])) {
- CERROR("%s: Short reply %d(%d expected)\n", libcfs_id2str(id),
- nob, (int)offsetof(lnet_ping_info_t, pi_nid[n_ids]));
+ if (nob < offsetof(lnet_ping_info_t, pi_ni[n_ids])) {
+ CERROR("%s: Short reply %d(%d expected)\n", libcfs_id2str(id),
+ nob, (int)offsetof(lnet_ping_info_t, pi_ni[n_ids]));
goto out_1;
}
for (i = 0; i < n_ids; i++) {
tmpid.pid = info->pi_pid;
- tmpid.nid = info->pi_nid[i];
+ tmpid.nid = info->pi_ni[i].ns_nid;
#ifdef __KERNEL__
- if (copy_to_user(&ids[i], &tmpid, sizeof(tmpid)))
+ if (cfs_copy_to_user(&ids[i], &tmpid, sizeof(tmpid)))
goto out_1;
#else
ids[i] = tmpid;
#endif
}
- rc = info->pi_nnids;
+ rc = info->pi_nnis;
out_1:
rc2 = LNetEQFree(eqh);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff