* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2014, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
}
static int
-ksocknal_create_peer (ksock_peer_t **peerp, lnet_ni_t *ni, lnet_process_id_t id)
+ksocknal_create_peer(ksock_peer_t **peerp, lnet_ni_t *ni, lnet_process_id_t id)
{
- ksock_net_t *net = ni->ni_data;
- ksock_peer_t *peer;
+ int cpt = lnet_cpt_of_nid(id.nid);
+ ksock_net_t *net = ni->ni_data;
+ ksock_peer_t *peer;
- LASSERT (id.nid != LNET_NID_ANY);
- LASSERT (id.pid != LNET_PID_ANY);
- LASSERT (!in_interrupt());
+ LASSERT(id.nid != LNET_NID_ANY);
+ LASSERT(id.pid != LNET_PID_ANY);
+ LASSERT(!in_interrupt());
- LIBCFS_ALLOC (peer, sizeof (*peer));
+ LIBCFS_CPT_ALLOC(peer, lnet_cpt_table(), cpt, sizeof(*peer));
if (peer == NULL)
return -ENOMEM;
- memset (peer, 0, sizeof (*peer)); /* NULL pointers/clear flags etc */
-
peer->ksnp_ni = ni;
peer->ksnp_id = id;
- atomic_set (&peer->ksnp_refcount, 1); /* 1 ref for caller */
+ atomic_set(&peer->ksnp_refcount, 1); /* 1 ref for caller */
peer->ksnp_closing = 0;
peer->ksnp_accepting = 0;
peer->ksnp_proto = NULL;
goto failed_0;
}
- memset (conn, 0, sizeof (*conn));
-
conn->ksnc_peer = NULL;
conn->ksnc_route = NULL;
conn->ksnc_sock = sock;
int notify = 0;
cfs_time_t last_alive = 0;
- /* There has been a connection failure or comms error; but I'll only
- * tell LNET I think the peer is dead if it's to another kernel and
- * there are no connections or connection attempts in existance. */
+ /* There has been a connection failure or comms error; but I'll only
+ * tell LNET I think the peer is dead if it's to another kernel and
+ * there are no connections or connection attempts in existence. */
read_lock(&ksocknal_data.ksnd_global_lock);
static int
ksocknal_push (lnet_ni_t *ni, lnet_process_id_t id)
{
- ksock_peer_t *peer;
- struct list_head *tmp;
- int index;
- int i;
- int j;
- int rc = -ENOENT;
-
- for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
- for (j = 0; ; j++) {
- read_lock(&ksocknal_data.ksnd_global_lock);
+ struct list_head *start;
+ struct list_head *end;
+ struct list_head *tmp;
+ int rc = -ENOENT;
+ unsigned int hsize = ksocknal_data.ksnd_peer_hash_size;
- index = 0;
- peer = NULL;
+ if (id.nid == LNET_NID_ANY) {
+ start = &ksocknal_data.ksnd_peers[0];
+ end = &ksocknal_data.ksnd_peers[hsize - 1];
+ } else {
+ start = end = ksocknal_nid2peerlist(id.nid);
+ }
- list_for_each(tmp, &ksocknal_data.ksnd_peers[i]) {
- peer = list_entry(tmp, ksock_peer_t,
- ksnp_list);
+ for (tmp = start; tmp <= end; tmp++) {
+ int peer_off; /* searching offset in peer hash table */
- if (!((id.nid == LNET_NID_ANY ||
- id.nid == peer->ksnp_id.nid) &&
- (id.pid == LNET_PID_ANY ||
- id.pid == peer->ksnp_id.pid))) {
- peer = NULL;
- continue;
- }
+ for (peer_off = 0; ; peer_off++) {
+ ksock_peer_t *peer;
+ int i = 0;
- if (index++ == j) {
- ksocknal_peer_addref(peer);
- break;
- }
- }
+ read_lock(&ksocknal_data.ksnd_global_lock);
+ list_for_each_entry(peer, tmp, ksnp_list) {
+ if (!((id.nid == LNET_NID_ANY ||
+ id.nid == peer->ksnp_id.nid) &&
+ (id.pid == LNET_PID_ANY ||
+ id.pid == peer->ksnp_id.pid)))
+ continue;
+ if (i++ == peer_off) {
+ ksocknal_peer_addref(peer);
+ break;
+ }
+ }
read_unlock(&ksocknal_data.ksnd_global_lock);
- if (peer != NULL) {
- rc = 0;
- ksocknal_push_peer (peer);
- ksocknal_peer_decref(peer);
- }
- }
-
- }
+ if (i == 0) /* no match */
+ break;
- return (rc);
+ rc = 0;
+ ksocknal_push_peer(peer);
+ ksocknal_peer_decref(peer);
+ }
+ }
+ return rc;
}
static int
}
}
- i = 4;
+ i = 4;
read_lock(&ksocknal_data.ksnd_global_lock);
- while (ksocknal_data.ksnd_nthreads != 0) {
- i++;
- CDEBUG(((i & (-i)) == i) ? D_WARNING : D_NET, /* power of 2? */
- "waiting for %d threads to terminate\n",
- ksocknal_data.ksnd_nthreads);
+ while (ksocknal_data.ksnd_nthreads != 0) {
+ i++;
+ /* power of 2? */
+ CDEBUG(((i & (-i)) == i) ? D_WARNING : D_NET,
+ "waiting for %d threads to terminate\n",
+ ksocknal_data.ksnd_nthreads);
read_unlock(&ksocknal_data.ksnd_global_lock);
- cfs_pause(cfs_time_seconds(1));
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(cfs_time_seconds(1));
read_lock(&ksocknal_data.ksnd_global_lock);
- }
+ }
read_unlock(&ksocknal_data.ksnd_global_lock);
ksocknal_free_buffers();
CDEBUG(((i & (-i)) == i) ? D_WARNING : D_NET, /* power of 2? */
"waiting for %d peers to disconnect\n",
net->ksnn_npeers);
- cfs_pause(cfs_time_seconds(1));
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(cfs_time_seconds(1));
ksocknal_debug_peerhash(ni);
}
-static void __exit
-ksocknal_module_fini (void)
+static void __exit ksocklnd_exit(void)
{
- lnet_unregister_lnd(&the_ksocklnd);
- ksocknal_tunables_fini();
+ lnet_unregister_lnd(&the_ksocklnd);
}
-static int __init
-ksocknal_module_init (void)
+static int __init ksocklnd_init(void)
{
- int rc;
-
- /* check ksnr_connected/connecting field large enough */
- CLASSERT (SOCKLND_CONN_NTYPES <= 4);
- CLASSERT (SOCKLND_CONN_ACK == SOCKLND_CONN_BULK_IN);
-
- /* initialize the_ksocklnd */
- the_ksocklnd.lnd_type = SOCKLND;
- the_ksocklnd.lnd_startup = ksocknal_startup;
- the_ksocklnd.lnd_shutdown = ksocknal_shutdown;
- the_ksocklnd.lnd_ctl = ksocknal_ctl;
- the_ksocklnd.lnd_send = ksocknal_send;
- the_ksocklnd.lnd_recv = ksocknal_recv;
- the_ksocklnd.lnd_notify = ksocknal_notify;
- the_ksocklnd.lnd_query = ksocknal_query;
- the_ksocklnd.lnd_accept = ksocknal_accept;
-
- rc = ksocknal_tunables_init();
- if (rc != 0)
- return rc;
+ int rc;
+
+ /* check ksnr_connected/connecting field large enough */
+ CLASSERT(SOCKLND_CONN_NTYPES <= 4);
+ CLASSERT(SOCKLND_CONN_ACK == SOCKLND_CONN_BULK_IN);
+
+ /* initialize the_ksocklnd */
+ the_ksocklnd.lnd_type = SOCKLND;
+ the_ksocklnd.lnd_startup = ksocknal_startup;
+ the_ksocklnd.lnd_shutdown = ksocknal_shutdown;
+ the_ksocklnd.lnd_ctl = ksocknal_ctl;
+ the_ksocklnd.lnd_send = ksocknal_send;
+ the_ksocklnd.lnd_recv = ksocknal_recv;
+ the_ksocklnd.lnd_notify = ksocknal_notify;
+ the_ksocklnd.lnd_query = ksocknal_query;
+ the_ksocklnd.lnd_accept = ksocknal_accept;
+
+ rc = ksocknal_tunables_init();
+ if (rc != 0)
+ return rc;
- lnet_register_lnd(&the_ksocklnd);
+ lnet_register_lnd(&the_ksocklnd);
- return 0;
+ return 0;
}
-MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Kernel TCP Socket LND v3.0.0");
+MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
+MODULE_DESCRIPTION("TCP Socket LNet Network Driver");
+MODULE_VERSION("2.8.0");
MODULE_LICENSE("GPL");
-cfs_module(ksocknal, "3.0.0", ksocknal_module_init, ksocknal_module_fini);
+module_init(ksocklnd_init);
+module_exit(ksocklnd_exit);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff