/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * lib/lib-move.c
- * Data movement routines
+ * GPL HEADER START
*
- * Copyright (c) 2001-2003 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org
+ * 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 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 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).
*
- * 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.
+ * 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
*
- * 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.
+ * 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) 2007, 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.
+ *
+ * lnet/lnet/peer.c
*/
#define DEBUG_SUBSYSTEM S_LNET
int
lnet_create_peer_table(void)
{
- struct list_head *hash;
- int i;
+ cfs_list_t *hash;
+ int i;
LASSERT (the_lnet.ln_peer_hash == NULL);
- LIBCFS_ALLOC(hash, LNET_PEER_HASHSIZE * sizeof(struct list_head));
+ LIBCFS_ALLOC(hash, LNET_PEER_HASHSIZE * sizeof(cfs_list_t));
if (hash == NULL) {
CERROR("Can't allocate peer hash table\n");
return;
for (i = 0; i < LNET_PEER_HASHSIZE; i++)
- LASSERT (list_empty(&the_lnet.ln_peer_hash[i]));
-
+ LASSERT (cfs_list_empty(&the_lnet.ln_peer_hash[i]));
+
LIBCFS_FREE(the_lnet.ln_peer_hash,
- LNET_PEER_HASHSIZE * sizeof (struct list_head));
+ LNET_PEER_HASHSIZE * sizeof (cfs_list_t));
the_lnet.ln_peer_hash = NULL;
}
int i;
LASSERT (the_lnet.ln_shutdown); /* i.e. no new peers */
-
+
for (i = 0; i < LNET_PEER_HASHSIZE; i++) {
- struct list_head *peers = &the_lnet.ln_peer_hash[i];
+ cfs_list_t *peers = &the_lnet.ln_peer_hash[i];
LNET_LOCK();
- while (!list_empty(peers)) {
- lnet_peer_t *lp = list_entry(peers->next,
- lnet_peer_t, lp_hashlist);
-
- list_del(&lp->lp_hashlist);
+ while (!cfs_list_empty(peers)) {
+ lnet_peer_t *lp = cfs_list_entry(peers->next,
+ lnet_peer_t,
+ lp_hashlist);
+
+ cfs_list_del(&lp->lp_hashlist);
lnet_peer_decref_locked(lp); /* lose hash table's ref */
}
LNET_UNLOCK();
LASSERT (lp->lp_refcount == 0);
LASSERT (lp->lp_rtr_refcount == 0);
- LASSERT (list_empty(&lp->lp_txq));
+ LASSERT (cfs_list_empty(&lp->lp_txq));
LASSERT (lp->lp_txqnob == 0);
+ LASSERT (lp->lp_rcd == NULL);
LIBCFS_FREE(lp, sizeof(*lp));
lnet_find_peer_locked (lnet_nid_t nid)
{
unsigned int idx = LNET_NIDADDR(nid) % LNET_PEER_HASHSIZE;
- struct list_head *peers = &the_lnet.ln_peer_hash[idx];
- struct list_head *tmp;
+ cfs_list_t *peers = &the_lnet.ln_peer_hash[idx];
+ cfs_list_t *tmp;
lnet_peer_t *lp;
if (the_lnet.ln_shutdown)
return NULL;
- list_for_each (tmp, peers) {
- lp = list_entry(tmp, lnet_peer_t, lp_hashlist);
-
+ cfs_list_for_each (tmp, peers) {
+ lp = cfs_list_entry(tmp, lnet_peer_t, lp_hashlist);
+
if (lp->lp_nid == nid) {
lnet_peer_addref_locked(lp);
return lp;
}
}
-
+
return NULL;
}
CFS_INIT_LIST_HEAD(&lp->lp_txq);
CFS_INIT_LIST_HEAD(&lp->lp_rtrq);
- lp->lp_alive = !lnet_peers_start_down(); /* 1 bit!! */
lp->lp_notify = 0;
lp->lp_notifylnd = 0;
lp->lp_notifying = 0;
lp->lp_alive_count = 0;
- lp->lp_timestamp = 0;
+ lp->lp_timestamp = 0;
+ lp->lp_alive = !lnet_peers_start_down(); /* 1 bit!! */
+ lp->lp_last_alive = cfs_time_current(); /* assumes alive */
+ lp->lp_last_query = 0; /* haven't asked NI yet */
lp->lp_ping_timestamp = 0;
- lp->lp_nid = nid;
+ lp->lp_nid = nid;
lp->lp_refcount = 2; /* 1 for caller; 1 for hash */
lp->lp_rtr_refcount = 0;
LIBCFS_FREE(lp, sizeof(*lp));
LNET_LOCK();
+ if (the_lnet.ln_shutdown) {
+ lnet_peer_decref_locked(lp2);
+ *lpp = NULL;
+ return -ESHUTDOWN;
+ }
+
*lpp = lp2;
return 0;
}
return the_lnet.ln_shutdown ? -ESHUTDOWN : -EHOSTUNREACH;
}
- lp->lp_txcredits =
- lp->lp_mintxcredits = lp->lp_ni->ni_peertxcredits;
-
- /* As a first approximation; allow this peer the same number of router
- * buffers as it is allowed outstanding sends */
- lp->lp_rtrcredits = lp->lp_minrtrcredits = lp->lp_txcredits;
+ lp->lp_txcredits =
+ lp->lp_mintxcredits = lp->lp_ni->ni_peertxcredits;
+ lp->lp_rtrcredits =
+ lp->lp_minrtrcredits = lnet_peer_buffer_credits(lp->lp_ni);
- LASSERT (!the_lnet.ln_shutdown);
/* can't add peers after shutdown starts */
+ LASSERT (!the_lnet.ln_shutdown);
- list_add_tail(&lp->lp_hashlist, lnet_nid2peerhash(nid));
+ cfs_list_add_tail(&lp->lp_hashlist, lnet_nid2peerhash(nid));
the_lnet.ln_npeers++;
the_lnet.ln_peertable_version++;
*lpp = lp;
void
lnet_debug_peer(lnet_nid_t nid)
{
+ char *aliveness = "NA";
int rc;
lnet_peer_t *lp;
LNET_LOCK();
-
+
rc = lnet_nid2peer_locked(&lp, nid);
if (rc != 0) {
LNET_UNLOCK();
return;
}
+ if (lnet_isrouter(lp) || lnet_peer_aliveness_enabled(lp))
+ aliveness = lp->lp_alive ? "up" : "down";
+
CDEBUG(D_WARNING, "%-24s %4d %5s %5d %5d %5d %5d %5d %ld\n",
- libcfs_nid2str(lp->lp_nid), lp->lp_refcount,
- lp->lp_alive ? "up" : "down",
- lp->lp_ni->ni_peertxcredits,
- lp->lp_rtrcredits, lp->lp_minrtrcredits,
+ libcfs_nid2str(lp->lp_nid), lp->lp_refcount,
+ aliveness, lp->lp_ni->ni_peertxcredits,
+ lp->lp_rtrcredits, lp->lp_minrtrcredits,
lp->lp_txcredits, lp->lp_mintxcredits, lp->lp_txqnob);
lnet_peer_decref_locked(lp);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff