-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* 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.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*/
#include "socklnd.h"
+#include <linux/inetdevice.h>
-lnd_t the_ksocklnd;
-ksock_nal_data_t ksocknal_data;
+static struct lnet_lnd the_ksocklnd;
+struct ksock_nal_data ksocknal_data;
-ksock_interface_t *
-ksocknal_ip2iface(lnet_ni_t *ni, __u32 ip)
+static struct ksock_interface *
+ksocknal_ip2iface(struct lnet_ni *ni, __u32 ip)
{
- ksock_net_t *net = ni->ni_data;
- int i;
- ksock_interface_t *iface;
+ struct ksock_net *net = ni->ni_data;
+ int i;
+ struct ksock_interface *iface;
- for (i = 0; i < net->ksnn_ninterfaces; i++) {
- LASSERT(i < LNET_MAX_INTERFACES);
- iface = &net->ksnn_interfaces[i];
+ for (i = 0; i < net->ksnn_ninterfaces; i++) {
+ LASSERT(i < LNET_INTERFACES_NUM);
+ iface = &net->ksnn_interfaces[i];
- if (iface->ksni_ipaddr == ip)
- return (iface);
- }
+ if (iface->ksni_ipaddr == ip)
+ return iface;
+ }
- return (NULL);
+ return NULL;
}
-ksock_route_t *
-ksocknal_create_route (__u32 ipaddr, int port)
+static struct ksock_route *
+ksocknal_create_route(__u32 ipaddr, int port)
{
- ksock_route_t *route;
+ struct ksock_route *route;
- LIBCFS_ALLOC (route, sizeof (*route));
- if (route == NULL)
- return (NULL);
+ LIBCFS_ALLOC (route, sizeof (*route));
+ if (route == NULL)
+ return (NULL);
- cfs_atomic_set (&route->ksnr_refcount, 1);
- route->ksnr_peer = NULL;
- route->ksnr_retry_interval = 0; /* OK to connect at any time */
- route->ksnr_ipaddr = ipaddr;
+ atomic_set (&route->ksnr_refcount, 1);
+ route->ksnr_peer = NULL;
+ route->ksnr_retry_interval = 0; /* OK to connect at any time */
+ route->ksnr_ipaddr = ipaddr;
route->ksnr_port = port;
route->ksnr_scheduled = 0;
route->ksnr_connecting = 0;
}
void
-ksocknal_destroy_route (ksock_route_t *route)
+ksocknal_destroy_route(struct ksock_route *route)
{
- LASSERT (cfs_atomic_read(&route->ksnr_refcount) == 0);
+ LASSERT (atomic_read(&route->ksnr_refcount) == 0);
- if (route->ksnr_peer != NULL)
- ksocknal_peer_decref(route->ksnr_peer);
+ if (route->ksnr_peer != NULL)
+ ksocknal_peer_decref(route->ksnr_peer);
- LIBCFS_FREE (route, sizeof (*route));
+ LIBCFS_FREE (route, sizeof (*route));
}
-int
-ksocknal_create_peer (ksock_peer_t **peerp, lnet_ni_t *ni, lnet_process_id_t id)
+static int
+ksocknal_create_peer(struct ksock_peer_ni **peerp, struct lnet_ni *ni,
+ struct lnet_process_id id)
{
- ksock_net_t *net = ni->ni_data;
- ksock_peer_t *peer;
+ int cpt = lnet_cpt_of_nid(id.nid, ni);
+ struct ksock_net *net = ni->ni_data;
+ struct ksock_peer_ni *peer_ni;
- LASSERT (id.nid != LNET_NID_ANY);
- LASSERT (id.pid != LNET_PID_ANY);
- LASSERT (!cfs_in_interrupt());
+ LASSERT(id.nid != LNET_NID_ANY);
+ LASSERT(id.pid != LNET_PID_ANY);
+ LASSERT(!in_interrupt());
- LIBCFS_ALLOC (peer, sizeof (*peer));
- if (peer == NULL)
- return -ENOMEM;
+ LIBCFS_CPT_ALLOC(peer_ni, lnet_cpt_table(), cpt, sizeof(*peer_ni));
+ if (peer_ni == NULL)
+ return -ENOMEM;
- memset (peer, 0, sizeof (*peer)); /* NULL pointers/clear flags etc */
+ peer_ni->ksnp_ni = ni;
+ peer_ni->ksnp_id = id;
+ atomic_set(&peer_ni->ksnp_refcount, 1); /* 1 ref for caller */
+ peer_ni->ksnp_closing = 0;
+ peer_ni->ksnp_accepting = 0;
+ peer_ni->ksnp_proto = NULL;
+ peer_ni->ksnp_last_alive = 0;
+ peer_ni->ksnp_zc_next_cookie = SOCKNAL_KEEPALIVE_PING + 1;
- peer->ksnp_ni = ni;
- peer->ksnp_id = id;
- cfs_atomic_set (&peer->ksnp_refcount, 1); /* 1 ref for caller */
- peer->ksnp_closing = 0;
- peer->ksnp_accepting = 0;
- peer->ksnp_proto = NULL;
- peer->ksnp_zc_next_cookie = SOCKNAL_KEEPALIVE_PING + 1;
+ INIT_LIST_HEAD(&peer_ni->ksnp_conns);
+ INIT_LIST_HEAD(&peer_ni->ksnp_routes);
+ INIT_LIST_HEAD(&peer_ni->ksnp_tx_queue);
+ INIT_LIST_HEAD(&peer_ni->ksnp_zc_req_list);
+ spin_lock_init(&peer_ni->ksnp_lock);
- CFS_INIT_LIST_HEAD (&peer->ksnp_conns);
- CFS_INIT_LIST_HEAD (&peer->ksnp_routes);
- CFS_INIT_LIST_HEAD (&peer->ksnp_tx_queue);
- CFS_INIT_LIST_HEAD (&peer->ksnp_zc_req_list);
- cfs_spin_lock_init(&peer->ksnp_lock);
+ spin_lock_bh(&net->ksnn_lock);
- cfs_spin_lock_bh (&net->ksnn_lock);
+ if (net->ksnn_shutdown) {
+ spin_unlock_bh(&net->ksnn_lock);
- if (net->ksnn_shutdown) {
- cfs_spin_unlock_bh (&net->ksnn_lock);
+ LIBCFS_FREE(peer_ni, sizeof(*peer_ni));
+ CERROR("Can't create peer_ni: network shutdown\n");
+ return -ESHUTDOWN;
+ }
- LIBCFS_FREE(peer, sizeof(*peer));
- CERROR("Can't create peer: network shutdown\n");
- return -ESHUTDOWN;
- }
+ net->ksnn_npeers++;
- net->ksnn_npeers++;
+ spin_unlock_bh(&net->ksnn_lock);
- cfs_spin_unlock_bh (&net->ksnn_lock);
-
- *peerp = peer;
- return 0;
+ *peerp = peer_ni;
+ return 0;
}
void
-ksocknal_destroy_peer (ksock_peer_t *peer)
+ksocknal_destroy_peer(struct ksock_peer_ni *peer_ni)
{
- ksock_net_t *net = peer->ksnp_ni->ni_data;
+ struct ksock_net *net = peer_ni->ksnp_ni->ni_data;
- CDEBUG (D_NET, "peer %s %p deleted\n",
- libcfs_id2str(peer->ksnp_id), peer);
+ CDEBUG (D_NET, "peer_ni %s %p deleted\n",
+ libcfs_id2str(peer_ni->ksnp_id), peer_ni);
- LASSERT (cfs_atomic_read (&peer->ksnp_refcount) == 0);
- LASSERT (peer->ksnp_accepting == 0);
- LASSERT (list_empty (&peer->ksnp_conns));
- LASSERT (list_empty (&peer->ksnp_routes));
- LASSERT (list_empty (&peer->ksnp_tx_queue));
- LASSERT (list_empty (&peer->ksnp_zc_req_list));
+ LASSERT(atomic_read(&peer_ni->ksnp_refcount) == 0);
+ LASSERT(peer_ni->ksnp_accepting == 0);
+ LASSERT(list_empty(&peer_ni->ksnp_conns));
+ LASSERT(list_empty(&peer_ni->ksnp_routes));
+ LASSERT(list_empty(&peer_ni->ksnp_tx_queue));
+ LASSERT(list_empty(&peer_ni->ksnp_zc_req_list));
- LIBCFS_FREE (peer, sizeof (*peer));
+ LIBCFS_FREE(peer_ni, sizeof(*peer_ni));
- /* NB a peer's connections and routes keep a reference on their peer
+ /* NB a peer_ni's connections and routes keep a reference on their peer_ni
* until they are destroyed, so we can be assured that _all_ state to
- * do with this peer has been cleaned up when its refcount drops to
+ * do with this peer_ni has been cleaned up when its refcount drops to
* zero. */
- cfs_spin_lock_bh (&net->ksnn_lock);
- net->ksnn_npeers--;
- cfs_spin_unlock_bh (&net->ksnn_lock);
+ spin_lock_bh(&net->ksnn_lock);
+ net->ksnn_npeers--;
+ spin_unlock_bh(&net->ksnn_lock);
}
-ksock_peer_t *
-ksocknal_find_peer_locked (lnet_ni_t *ni, lnet_process_id_t id)
+struct ksock_peer_ni *
+ksocknal_find_peer_locked(struct lnet_ni *ni, struct lnet_process_id id)
{
- struct list_head *peer_list = ksocknal_nid2peerlist(id.nid);
- struct list_head *tmp;
- ksock_peer_t *peer;
+ struct list_head *peer_list = ksocknal_nid2peerlist(id.nid);
+ struct list_head *tmp;
+ struct ksock_peer_ni *peer_ni;
- list_for_each (tmp, peer_list) {
+ list_for_each(tmp, peer_list) {
+ peer_ni = list_entry(tmp, struct ksock_peer_ni, ksnp_list);
- peer = list_entry (tmp, ksock_peer_t, ksnp_list);
+ LASSERT(!peer_ni->ksnp_closing);
- LASSERT (!peer->ksnp_closing);
+ if (peer_ni->ksnp_ni != ni)
+ continue;
- if (peer->ksnp_ni != ni)
- continue;
-
- if (peer->ksnp_id.nid != id.nid ||
- peer->ksnp_id.pid != id.pid)
- continue;
+ if (peer_ni->ksnp_id.nid != id.nid ||
+ peer_ni->ksnp_id.pid != id.pid)
+ continue;
- CDEBUG(D_NET, "got peer [%p] -> %s (%d)\n",
- peer, libcfs_id2str(id),
- cfs_atomic_read(&peer->ksnp_refcount));
- return (peer);
- }
- return (NULL);
+ CDEBUG(D_NET, "got peer_ni [%p] -> %s (%d)\n",
+ peer_ni, libcfs_id2str(id),
+ atomic_read(&peer_ni->ksnp_refcount));
+ return peer_ni;
+ }
+ return NULL;
}
-ksock_peer_t *
-ksocknal_find_peer (lnet_ni_t *ni, lnet_process_id_t id)
+struct ksock_peer_ni *
+ksocknal_find_peer(struct lnet_ni *ni, struct lnet_process_id id)
{
- ksock_peer_t *peer;
+ struct ksock_peer_ni *peer_ni;
- cfs_read_lock (&ksocknal_data.ksnd_global_lock);
- peer = ksocknal_find_peer_locked (ni, id);
- if (peer != NULL) /* +1 ref for caller? */
- ksocknal_peer_addref(peer);
- cfs_read_unlock (&ksocknal_data.ksnd_global_lock);
+ read_lock(&ksocknal_data.ksnd_global_lock);
+ peer_ni = ksocknal_find_peer_locked(ni, id);
+ if (peer_ni != NULL) /* +1 ref for caller? */
+ ksocknal_peer_addref(peer_ni);
+ read_unlock(&ksocknal_data.ksnd_global_lock);
- return (peer);
+ return (peer_ni);
}
-void
-ksocknal_unlink_peer_locked (ksock_peer_t *peer)
+static void
+ksocknal_unlink_peer_locked(struct ksock_peer_ni *peer_ni)
{
- int i;
- __u32 ip;
- ksock_interface_t *iface;
-
- for (i = 0; i < peer->ksnp_n_passive_ips; i++) {
- LASSERT (i < LNET_MAX_INTERFACES);
- ip = peer->ksnp_passive_ips[i];
-
- iface = ksocknal_ip2iface(peer->ksnp_ni, ip);
- /* All IPs in peer->ksnp_passive_ips[] come from the
- * interface list, therefore the call must succeed. */
- LASSERT (iface != NULL);
-
- CDEBUG(D_NET, "peer=%p iface=%p ksni_nroutes=%d\n",
- peer, iface, iface->ksni_nroutes);
- iface->ksni_npeers--;
- }
-
- LASSERT (list_empty(&peer->ksnp_conns));
- LASSERT (list_empty(&peer->ksnp_routes));
- LASSERT (!peer->ksnp_closing);
- peer->ksnp_closing = 1;
- list_del (&peer->ksnp_list);
- /* lose peerlist's ref */
- ksocknal_peer_decref(peer);
+ int i;
+ __u32 ip;
+ struct ksock_interface *iface;
+
+ for (i = 0; i < peer_ni->ksnp_n_passive_ips; i++) {
+ LASSERT(i < LNET_INTERFACES_NUM);
+ ip = peer_ni->ksnp_passive_ips[i];
+
+ iface = ksocknal_ip2iface(peer_ni->ksnp_ni, ip);
+ /*
+ * All IPs in peer_ni->ksnp_passive_ips[] come from the
+ * interface list, therefore the call must succeed.
+ */
+ LASSERT(iface != NULL);
+
+ CDEBUG(D_NET, "peer_ni=%p iface=%p ksni_nroutes=%d\n",
+ peer_ni, iface, iface->ksni_nroutes);
+ iface->ksni_npeers--;
+ }
+
+ LASSERT(list_empty(&peer_ni->ksnp_conns));
+ LASSERT(list_empty(&peer_ni->ksnp_routes));
+ LASSERT(!peer_ni->ksnp_closing);
+ peer_ni->ksnp_closing = 1;
+ list_del(&peer_ni->ksnp_list);
+ /* lose peerlist's ref */
+ ksocknal_peer_decref(peer_ni);
}
-int
-ksocknal_get_peer_info (lnet_ni_t *ni, int index,
- lnet_process_id_t *id, __u32 *myip, __u32 *peer_ip, int *port,
- int *conn_count, int *share_count)
+static int
+ksocknal_get_peer_info(struct lnet_ni *ni, int index,
+ struct lnet_process_id *id, __u32 *myip, __u32 *peer_ip,
+ int *port, int *conn_count, int *share_count)
{
- ksock_peer_t *peer;
- struct list_head *ptmp;
- ksock_route_t *route;
- struct list_head *rtmp;
- int i;
- int j;
- int rc = -ENOENT;
+ struct ksock_peer_ni *peer_ni;
+ struct list_head *ptmp;
+ struct ksock_route *route;
+ struct list_head *rtmp;
+ int i;
+ int j;
+ int rc = -ENOENT;
- cfs_read_lock (&ksocknal_data.ksnd_global_lock);
+ read_lock(&ksocknal_data.ksnd_global_lock);
- for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
+ for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
+ list_for_each(ptmp, &ksocknal_data.ksnd_peers[i]) {
+ peer_ni = list_entry(ptmp, struct ksock_peer_ni, ksnp_list);
- list_for_each (ptmp, &ksocknal_data.ksnd_peers[i]) {
- peer = list_entry (ptmp, ksock_peer_t, ksnp_list);
+ if (peer_ni->ksnp_ni != ni)
+ continue;
- if (peer->ksnp_ni != ni)
- continue;
+ if (peer_ni->ksnp_n_passive_ips == 0 &&
+ list_empty(&peer_ni->ksnp_routes)) {
+ if (index-- > 0)
+ continue;
- if (peer->ksnp_n_passive_ips == 0 &&
- list_empty(&peer->ksnp_routes)) {
- if (index-- > 0)
- continue;
-
- *id = peer->ksnp_id;
+ *id = peer_ni->ksnp_id;
*myip = 0;
*peer_ip = 0;
*port = 0;
goto out;
}
- for (j = 0; j < peer->ksnp_n_passive_ips; j++) {
- if (index-- > 0)
- continue;
+ for (j = 0; j < peer_ni->ksnp_n_passive_ips; j++) {
+ if (index-- > 0)
+ continue;
- *id = peer->ksnp_id;
- *myip = peer->ksnp_passive_ips[j];
+ *id = peer_ni->ksnp_id;
+ *myip = peer_ni->ksnp_passive_ips[j];
*peer_ip = 0;
*port = 0;
*conn_count = 0;
goto out;
}
- list_for_each (rtmp, &peer->ksnp_routes) {
- if (index-- > 0)
- continue;
-
- route = list_entry(rtmp, ksock_route_t,
- ksnr_list);
-
- *id = peer->ksnp_id;
- *myip = route->ksnr_myipaddr;
- *peer_ip = route->ksnr_ipaddr;
- *port = route->ksnr_port;
- *conn_count = route->ksnr_conn_count;
- *share_count = route->ksnr_share_count;
- rc = 0;
- goto out;
- }
- }
- }
- out:
- cfs_read_unlock (&ksocknal_data.ksnd_global_lock);
- return (rc);
+ list_for_each(rtmp, &peer_ni->ksnp_routes) {
+ if (index-- > 0)
+ continue;
+
+ route = list_entry(rtmp, struct ksock_route,
+ ksnr_list);
+
+ *id = peer_ni->ksnp_id;
+ *myip = route->ksnr_myipaddr;
+ *peer_ip = route->ksnr_ipaddr;
+ *port = route->ksnr_port;
+ *conn_count = route->ksnr_conn_count;
+ *share_count = route->ksnr_share_count;
+ rc = 0;
+ goto out;
+ }
+ }
+ }
+out:
+ read_unlock(&ksocknal_data.ksnd_global_lock);
+ return rc;
}
-void
-ksocknal_associate_route_conn_locked(ksock_route_t *route, ksock_conn_t *conn)
+static void
+ksocknal_associate_route_conn_locked(struct ksock_route *route, struct ksock_conn *conn)
{
- ksock_peer_t *peer = route->ksnr_peer;
- int type = conn->ksnc_type;
- ksock_interface_t *iface;
-
- conn->ksnc_route = route;
- ksocknal_route_addref(route);
-
- if (route->ksnr_myipaddr != conn->ksnc_myipaddr) {
- if (route->ksnr_myipaddr == 0) {
- /* route wasn't bound locally yet (the initial route) */
- CDEBUG(D_NET, "Binding %s %u.%u.%u.%u to %u.%u.%u.%u\n",
- libcfs_id2str(peer->ksnp_id),
- HIPQUAD(route->ksnr_ipaddr),
- HIPQUAD(conn->ksnc_myipaddr));
- } else {
- CDEBUG(D_NET, "Rebinding %s %u.%u.%u.%u from "
- "%u.%u.%u.%u to %u.%u.%u.%u\n",
- libcfs_id2str(peer->ksnp_id),
- HIPQUAD(route->ksnr_ipaddr),
- HIPQUAD(route->ksnr_myipaddr),
- HIPQUAD(conn->ksnc_myipaddr));
+ struct ksock_peer_ni *peer_ni = route->ksnr_peer;
+ int type = conn->ksnc_type;
+ struct ksock_interface *iface;
+
+ conn->ksnc_route = route;
+ ksocknal_route_addref(route);
+
+ if (route->ksnr_myipaddr != conn->ksnc_myipaddr) {
+ if (route->ksnr_myipaddr == 0) {
+ /* route wasn't bound locally yet (the initial route) */
+ CDEBUG(D_NET, "Binding %s %pI4h to %pI4h\n",
+ libcfs_id2str(peer_ni->ksnp_id),
+ &route->ksnr_ipaddr,
+ &conn->ksnc_myipaddr);
+ } else {
+ CDEBUG(D_NET, "Rebinding %s %pI4h from %pI4h "
+ "to %pI4h\n", libcfs_id2str(peer_ni->ksnp_id),
+ &route->ksnr_ipaddr,
+ &route->ksnr_myipaddr,
+ &conn->ksnc_myipaddr);
iface = ksocknal_ip2iface(route->ksnr_peer->ksnp_ni,
route->ksnr_myipaddr);
route->ksnr_retry_interval = 0;
}
-void
-ksocknal_add_route_locked (ksock_peer_t *peer, ksock_route_t *route)
+static void
+ksocknal_add_route_locked(struct ksock_peer_ni *peer_ni, struct ksock_route *route)
{
- struct list_head *tmp;
- ksock_conn_t *conn;
- ksock_route_t *route2;
-
- LASSERT (!peer->ksnp_closing);
- LASSERT (route->ksnr_peer == NULL);
- LASSERT (!route->ksnr_scheduled);
- LASSERT (!route->ksnr_connecting);
- LASSERT (route->ksnr_connected == 0);
-
- /* LASSERT(unique) */
- list_for_each(tmp, &peer->ksnp_routes) {
- route2 = list_entry(tmp, ksock_route_t, ksnr_list);
-
- if (route2->ksnr_ipaddr == route->ksnr_ipaddr) {
- CERROR ("Duplicate route %s %u.%u.%u.%u\n",
- libcfs_id2str(peer->ksnp_id),
- HIPQUAD(route->ksnr_ipaddr));
- LBUG();
- }
- }
-
- route->ksnr_peer = peer;
- ksocknal_peer_addref(peer);
- /* peer's routelist takes over my ref on 'route' */
- list_add_tail(&route->ksnr_list, &peer->ksnp_routes);
-
- list_for_each(tmp, &peer->ksnp_conns) {
- conn = list_entry(tmp, ksock_conn_t, ksnc_list);
-
- if (conn->ksnc_ipaddr != route->ksnr_ipaddr)
- continue;
-
- ksocknal_associate_route_conn_locked(route, conn);
- /* keep going (typed routes) */
- }
+ struct list_head *tmp;
+ struct ksock_conn *conn;
+ struct ksock_route *route2;
+
+ LASSERT(!peer_ni->ksnp_closing);
+ LASSERT(route->ksnr_peer == NULL);
+ LASSERT(!route->ksnr_scheduled);
+ LASSERT(!route->ksnr_connecting);
+ LASSERT(route->ksnr_connected == 0);
+
+ /* LASSERT(unique) */
+ list_for_each(tmp, &peer_ni->ksnp_routes) {
+ route2 = list_entry(tmp, struct ksock_route, ksnr_list);
+
+ if (route2->ksnr_ipaddr == route->ksnr_ipaddr) {
+ CERROR("Duplicate route %s %pI4h\n",
+ libcfs_id2str(peer_ni->ksnp_id),
+ &route->ksnr_ipaddr);
+ LBUG();
+ }
+ }
+
+ route->ksnr_peer = peer_ni;
+ ksocknal_peer_addref(peer_ni);
+ /* peer_ni's routelist takes over my ref on 'route' */
+ list_add_tail(&route->ksnr_list, &peer_ni->ksnp_routes);
+
+ list_for_each(tmp, &peer_ni->ksnp_conns) {
+ conn = list_entry(tmp, struct ksock_conn, ksnc_list);
+
+ if (conn->ksnc_ipaddr != route->ksnr_ipaddr)
+ continue;
+
+ ksocknal_associate_route_conn_locked(route, conn);
+ /* keep going (typed routes) */
+ }
}
-void
-ksocknal_del_route_locked (ksock_route_t *route)
+static void
+ksocknal_del_route_locked(struct ksock_route *route)
{
- ksock_peer_t *peer = route->ksnr_peer;
- ksock_interface_t *iface;
- ksock_conn_t *conn;
- struct list_head *ctmp;
- struct list_head *cnxt;
-
- LASSERT (!route->ksnr_deleted);
-
- /* Close associated conns */
- list_for_each_safe (ctmp, cnxt, &peer->ksnp_conns) {
- conn = list_entry(ctmp, ksock_conn_t, ksnc_list);
-
- if (conn->ksnc_route != route)
- continue;
-
- ksocknal_close_conn_locked (conn, 0);
- }
-
- if (route->ksnr_myipaddr != 0) {
- iface = ksocknal_ip2iface(route->ksnr_peer->ksnp_ni,
- route->ksnr_myipaddr);
- if (iface != NULL)
- iface->ksni_nroutes--;
- }
-
- route->ksnr_deleted = 1;
- list_del (&route->ksnr_list);
- ksocknal_route_decref(route); /* drop peer's ref */
-
- if (list_empty (&peer->ksnp_routes) &&
- list_empty (&peer->ksnp_conns)) {
- /* I've just removed the last route to a peer with no active
- * connections */
- ksocknal_unlink_peer_locked (peer);
- }
+ struct ksock_peer_ni *peer_ni = route->ksnr_peer;
+ struct ksock_interface *iface;
+ struct ksock_conn *conn;
+ struct list_head *ctmp;
+ struct list_head *cnxt;
+
+ LASSERT(!route->ksnr_deleted);
+
+ /* Close associated conns */
+ list_for_each_safe(ctmp, cnxt, &peer_ni->ksnp_conns) {
+ conn = list_entry(ctmp, struct ksock_conn, ksnc_list);
+
+ if (conn->ksnc_route != route)
+ continue;
+
+ ksocknal_close_conn_locked(conn, 0);
+ }
+
+ if (route->ksnr_myipaddr != 0) {
+ iface = ksocknal_ip2iface(route->ksnr_peer->ksnp_ni,
+ route->ksnr_myipaddr);
+ if (iface != NULL)
+ iface->ksni_nroutes--;
+ }
+
+ route->ksnr_deleted = 1;
+ list_del(&route->ksnr_list);
+ ksocknal_route_decref(route); /* drop peer_ni's ref */
+
+ if (list_empty(&peer_ni->ksnp_routes) &&
+ list_empty(&peer_ni->ksnp_conns)) {
+ /* I've just removed the last route to a peer_ni with no active
+ * connections */
+ ksocknal_unlink_peer_locked(peer_ni);
+ }
}
int
-ksocknal_add_peer (lnet_ni_t *ni, lnet_process_id_t id, __u32 ipaddr, int port)
+ksocknal_add_peer(struct lnet_ni *ni, struct lnet_process_id id, __u32 ipaddr,
+ int port)
{
- struct list_head *tmp;
- ksock_peer_t *peer;
- ksock_peer_t *peer2;
- ksock_route_t *route;
- ksock_route_t *route2;
- int rc;
+ struct list_head *tmp;
+ struct ksock_peer_ni *peer_ni;
+ struct ksock_peer_ni *peer2;
+ struct ksock_route *route;
+ struct ksock_route *route2;
+ int rc;
if (id.nid == LNET_NID_ANY ||
id.pid == LNET_PID_ANY)
return (-EINVAL);
- /* Have a brand new peer ready... */
- rc = ksocknal_create_peer(&peer, ni, id);
+ /* Have a brand new peer_ni ready... */
+ rc = ksocknal_create_peer(&peer_ni, ni, id);
if (rc != 0)
return rc;
route = ksocknal_create_route (ipaddr, port);
if (route == NULL) {
- ksocknal_peer_decref(peer);
+ ksocknal_peer_decref(peer_ni);
return (-ENOMEM);
}
- cfs_write_lock_bh (&ksocknal_data.ksnd_global_lock);
+ write_lock_bh(&ksocknal_data.ksnd_global_lock);
/* always called with a ref on ni, so shutdown can't have started */
- LASSERT (((ksock_net_t *) ni->ni_data)->ksnn_shutdown == 0);
-
- peer2 = ksocknal_find_peer_locked (ni, id);
- if (peer2 != NULL) {
- ksocknal_peer_decref(peer);
- peer = peer2;
- } else {
- /* peer table takes my ref on peer */
- list_add_tail (&peer->ksnp_list,
- ksocknal_nid2peerlist (id.nid));
- }
-
- route2 = NULL;
- list_for_each (tmp, &peer->ksnp_routes) {
- route2 = list_entry(tmp, ksock_route_t, ksnr_list);
-
- if (route2->ksnr_ipaddr == ipaddr)
- break;
-
- route2 = NULL;
- }
- if (route2 == NULL) {
- ksocknal_add_route_locked(peer, route);
- route->ksnr_share_count++;
- } else {
- ksocknal_route_decref(route);
- route2->ksnr_share_count++;
- }
-
- cfs_write_unlock_bh (&ksocknal_data.ksnd_global_lock);
-
- return (0);
+ LASSERT(((struct ksock_net *) ni->ni_data)->ksnn_shutdown == 0);
+
+ peer2 = ksocknal_find_peer_locked(ni, id);
+ if (peer2 != NULL) {
+ ksocknal_peer_decref(peer_ni);
+ peer_ni = peer2;
+ } else {
+ /* peer_ni table takes my ref on peer_ni */
+ list_add_tail(&peer_ni->ksnp_list,
+ ksocknal_nid2peerlist(id.nid));
+ }
+
+ route2 = NULL;
+ list_for_each(tmp, &peer_ni->ksnp_routes) {
+ route2 = list_entry(tmp, struct ksock_route, ksnr_list);
+
+ if (route2->ksnr_ipaddr == ipaddr)
+ break;
+
+ route2 = NULL;
+ }
+ if (route2 == NULL) {
+ ksocknal_add_route_locked(peer_ni, route);
+ route->ksnr_share_count++;
+ } else {
+ ksocknal_route_decref(route);
+ route2->ksnr_share_count++;
+ }
+
+ write_unlock_bh(&ksocknal_data.ksnd_global_lock);
+
+ return 0;
}
-void
-ksocknal_del_peer_locked (ksock_peer_t *peer, __u32 ip)
+static void
+ksocknal_del_peer_locked(struct ksock_peer_ni *peer_ni, __u32 ip)
{
- ksock_conn_t *conn;
- ksock_route_t *route;
- struct list_head *tmp;
- struct list_head *nxt;
- int nshared;
+ struct ksock_conn *conn;
+ struct ksock_route *route;
+ struct list_head *tmp;
+ struct list_head *nxt;
+ int nshared;
- LASSERT (!peer->ksnp_closing);
+ LASSERT(!peer_ni->ksnp_closing);
- /* Extra ref prevents peer disappearing until I'm done with it */
- ksocknal_peer_addref(peer);
+ /* Extra ref prevents peer_ni disappearing until I'm done with it */
+ ksocknal_peer_addref(peer_ni);
- list_for_each_safe (tmp, nxt, &peer->ksnp_routes) {
- route = list_entry(tmp, ksock_route_t, ksnr_list);
+ list_for_each_safe(tmp, nxt, &peer_ni->ksnp_routes) {
+ route = list_entry(tmp, struct ksock_route, ksnr_list);
- /* no match */
- if (!(ip == 0 || route->ksnr_ipaddr == ip))
- continue;
+ /* no match */
+ if (!(ip == 0 || route->ksnr_ipaddr == ip))
+ continue;
- route->ksnr_share_count = 0;
- /* This deletes associated conns too */
- ksocknal_del_route_locked (route);
- }
+ route->ksnr_share_count = 0;
+ /* This deletes associated conns too */
+ ksocknal_del_route_locked(route);
+ }
- nshared = 0;
- list_for_each_safe (tmp, nxt, &peer->ksnp_routes) {
- route = list_entry(tmp, ksock_route_t, ksnr_list);
- nshared += route->ksnr_share_count;
- }
+ nshared = 0;
+ list_for_each_safe(tmp, nxt, &peer_ni->ksnp_routes) {
+ route = list_entry(tmp, struct ksock_route, ksnr_list);
+ nshared += route->ksnr_share_count;
+ }
- if (nshared == 0) {
- /* remove everything else if there are no explicit entries
- * left */
+ if (nshared == 0) {
+ /* remove everything else if there are no explicit entries
+ * left */
- list_for_each_safe (tmp, nxt, &peer->ksnp_routes) {
- route = list_entry(tmp, ksock_route_t, ksnr_list);
+ list_for_each_safe(tmp, nxt, &peer_ni->ksnp_routes) {
+ route = list_entry(tmp, struct ksock_route, ksnr_list);
- /* we should only be removing auto-entries */
- LASSERT(route->ksnr_share_count == 0);
- ksocknal_del_route_locked (route);
- }
+ /* we should only be removing auto-entries */
+ LASSERT(route->ksnr_share_count == 0);
+ ksocknal_del_route_locked(route);
+ }
- list_for_each_safe (tmp, nxt, &peer->ksnp_conns) {
- conn = list_entry(tmp, ksock_conn_t, ksnc_list);
+ list_for_each_safe(tmp, nxt, &peer_ni->ksnp_conns) {
+ conn = list_entry(tmp, struct ksock_conn, ksnc_list);
- ksocknal_close_conn_locked(conn, 0);
- }
- }
+ ksocknal_close_conn_locked(conn, 0);
+ }
+ }
- ksocknal_peer_decref(peer);
- /* NB peer unlinks itself when last conn/route is removed */
+ ksocknal_peer_decref(peer_ni);
+ /* NB peer_ni unlinks itself when last conn/route is removed */
}
-int
-ksocknal_del_peer (lnet_ni_t *ni, lnet_process_id_t id, __u32 ip)
+static int
+ksocknal_del_peer(struct lnet_ni *ni, struct lnet_process_id id, __u32 ip)
{
- CFS_LIST_HEAD (zombies);
- struct list_head *ptmp;
- struct list_head *pnxt;
- ksock_peer_t *peer;
- int lo;
- int hi;
- int i;
- int rc = -ENOENT;
+ LIST_HEAD(zombies);
+ struct list_head *ptmp;
+ struct list_head *pnxt;
+ struct ksock_peer_ni *peer_ni;
+ int lo;
+ int hi;
+ int i;
+ int rc = -ENOENT;
- cfs_write_lock_bh (&ksocknal_data.ksnd_global_lock);
+ write_lock_bh(&ksocknal_data.ksnd_global_lock);
- if (id.nid != LNET_NID_ANY)
- lo = hi = (int)(ksocknal_nid2peerlist(id.nid) - ksocknal_data.ksnd_peers);
- else {
- lo = 0;
- hi = ksocknal_data.ksnd_peer_hash_size - 1;
- }
+ if (id.nid != LNET_NID_ANY) {
+ hi = (int)(ksocknal_nid2peerlist(id.nid) -
+ ksocknal_data.ksnd_peers);
+ lo = hi;
+ } else {
+ lo = 0;
+ hi = ksocknal_data.ksnd_peer_hash_size - 1;
+ }
- for (i = lo; i <= hi; i++) {
- list_for_each_safe (ptmp, pnxt, &ksocknal_data.ksnd_peers[i]) {
- peer = list_entry (ptmp, ksock_peer_t, ksnp_list);
+ for (i = lo; i <= hi; i++) {
+ list_for_each_safe(ptmp, pnxt,
+ &ksocknal_data.ksnd_peers[i]) {
+ peer_ni = list_entry(ptmp, struct ksock_peer_ni, ksnp_list);
- if (peer->ksnp_ni != ni)
- continue;
+ if (peer_ni->ksnp_ni != ni)
+ continue;
- if (!((id.nid == LNET_NID_ANY || peer->ksnp_id.nid == id.nid) &&
- (id.pid == LNET_PID_ANY || peer->ksnp_id.pid == id.pid)))
- continue;
+ if (!((id.nid == LNET_NID_ANY ||
+ peer_ni->ksnp_id.nid == id.nid) &&
+ (id.pid == LNET_PID_ANY ||
+ peer_ni->ksnp_id.pid == id.pid)))
+ continue;
- ksocknal_peer_addref(peer); /* a ref for me... */
+ ksocknal_peer_addref(peer_ni); /* a ref for me... */
- ksocknal_del_peer_locked (peer, ip);
+ ksocknal_del_peer_locked(peer_ni, ip);
- if (peer->ksnp_closing && !list_empty(&peer->ksnp_tx_queue)) {
- LASSERT (list_empty(&peer->ksnp_conns));
- LASSERT (list_empty(&peer->ksnp_routes));
+ if (peer_ni->ksnp_closing &&
+ !list_empty(&peer_ni->ksnp_tx_queue)) {
+ LASSERT(list_empty(&peer_ni->ksnp_conns));
+ LASSERT(list_empty(&peer_ni->ksnp_routes));
- list_splice_init(&peer->ksnp_tx_queue, &zombies);
- }
+ list_splice_init(&peer_ni->ksnp_tx_queue,
+ &zombies);
+ }
- ksocknal_peer_decref(peer); /* ...till here */
+ ksocknal_peer_decref(peer_ni); /* ...till here */
- rc = 0; /* matched! */
- }
- }
+ rc = 0; /* matched! */
+ }
+ }
- cfs_write_unlock_bh (&ksocknal_data.ksnd_global_lock);
+ write_unlock_bh(&ksocknal_data.ksnd_global_lock);
- ksocknal_txlist_done(ni, &zombies, 1);
+ ksocknal_txlist_done(ni, &zombies, -ENETDOWN);
- return (rc);
+ return rc;
}
-ksock_conn_t *
-ksocknal_get_conn_by_idx (lnet_ni_t *ni, int index)
+static struct ksock_conn *
+ksocknal_get_conn_by_idx(struct lnet_ni *ni, int index)
{
- ksock_peer_t *peer;
- struct list_head *ptmp;
- ksock_conn_t *conn;
- struct list_head *ctmp;
- int i;
-
- cfs_read_lock (&ksocknal_data.ksnd_global_lock);
-
- for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
- list_for_each (ptmp, &ksocknal_data.ksnd_peers[i]) {
- peer = list_entry (ptmp, ksock_peer_t, ksnp_list);
-
- LASSERT (!peer->ksnp_closing);
-
- if (peer->ksnp_ni != ni)
- continue;
-
- list_for_each (ctmp, &peer->ksnp_conns) {
- if (index-- > 0)
- continue;
-
- conn = list_entry (ctmp, ksock_conn_t, ksnc_list);
- ksocknal_conn_addref(conn);
- cfs_read_unlock (&ksocknal_data.ksnd_global_lock);
- return (conn);
- }
- }
- }
-
- cfs_read_unlock (&ksocknal_data.ksnd_global_lock);
- return (NULL);
+ struct ksock_peer_ni *peer_ni;
+ struct list_head *ptmp;
+ struct ksock_conn *conn;
+ struct list_head *ctmp;
+ int i;
+
+ read_lock(&ksocknal_data.ksnd_global_lock);
+
+ for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
+ list_for_each(ptmp, &ksocknal_data.ksnd_peers[i]) {
+ peer_ni = list_entry(ptmp, struct ksock_peer_ni, ksnp_list);
+
+ LASSERT(!peer_ni->ksnp_closing);
+
+ if (peer_ni->ksnp_ni != ni)
+ continue;
+
+ list_for_each(ctmp, &peer_ni->ksnp_conns) {
+ if (index-- > 0)
+ continue;
+
+ conn = list_entry(ctmp, struct ksock_conn,
+ ksnc_list);
+ ksocknal_conn_addref(conn);
+ read_unlock(&ksocknal_data. \
+ ksnd_global_lock);
+ return conn;
+ }
+ }
+ }
+
+ read_unlock(&ksocknal_data.ksnd_global_lock);
+ return NULL;
}
-ksock_sched_t *
-ksocknal_choose_scheduler_locked (unsigned int irq)
+static struct ksock_sched *
+ksocknal_choose_scheduler_locked(unsigned int cpt)
{
- ksock_sched_t *sched;
- ksock_irqinfo_t *info;
- int i;
-
- LASSERT (irq < NR_IRQS);
- info = &ksocknal_data.ksnd_irqinfo[irq];
-
- if (irq != 0 && /* hardware NIC */
- info->ksni_valid) { /* already set up */
- return (&ksocknal_data.ksnd_schedulers[info->ksni_sched]);
- }
-
- /* software NIC (irq == 0) || not associated with a scheduler yet.
- * Choose the CPU with the fewest connections... */
- sched = &ksocknal_data.ksnd_schedulers[0];
- for (i = 1; i < ksocknal_data.ksnd_nschedulers; i++)
- if (sched->kss_nconns >
- ksocknal_data.ksnd_schedulers[i].kss_nconns)
- sched = &ksocknal_data.ksnd_schedulers[i];
-
- if (irq != 0) { /* Hardware NIC */
- info->ksni_valid = 1;
- info->ksni_sched = (unsigned int)(sched - ksocknal_data.ksnd_schedulers);
-
- /* no overflow... */
- LASSERT (info->ksni_sched == (unsigned int)(sched - ksocknal_data.ksnd_schedulers));
- }
-
- return (sched);
+ struct ksock_sched *sched = ksocknal_data.ksnd_schedulers[cpt];
+ int i;
+
+ if (sched->kss_nthreads == 0) {
+ cfs_percpt_for_each(sched, i, ksocknal_data.ksnd_schedulers) {
+ if (sched->kss_nthreads > 0) {
+ CDEBUG(D_NET, "scheduler[%d] has no threads. selected scheduler[%d]\n",
+ cpt, sched->kss_cpt);
+ return sched;
+ }
+ }
+ return NULL;
+ }
+
+ return sched;
}
-int
-ksocknal_local_ipvec (lnet_ni_t *ni, __u32 *ipaddrs)
+static int
+ksocknal_local_ipvec(struct lnet_ni *ni, __u32 *ipaddrs)
{
- ksock_net_t *net = ni->ni_data;
- int i;
- int nip;
-
- cfs_read_lock (&ksocknal_data.ksnd_global_lock);
-
- nip = net->ksnn_ninterfaces;
- LASSERT (nip <= LNET_MAX_INTERFACES);
-
- /* Only offer interfaces for additional connections if I have
- * more than one. */
- if (nip < 2) {
- cfs_read_unlock (&ksocknal_data.ksnd_global_lock);
- return 0;
- }
-
- for (i = 0; i < nip; i++) {
- ipaddrs[i] = net->ksnn_interfaces[i].ksni_ipaddr;
- LASSERT (ipaddrs[i] != 0);
- }
-
- cfs_read_unlock (&ksocknal_data.ksnd_global_lock);
- return (nip);
+ struct ksock_net *net = ni->ni_data;
+ int i;
+ int nip;
+
+ read_lock(&ksocknal_data.ksnd_global_lock);
+
+ nip = net->ksnn_ninterfaces;
+ LASSERT(nip <= LNET_INTERFACES_NUM);
+
+ /*
+ * Only offer interfaces for additional connections if I have
+ * more than one.
+ */
+ if (nip < 2) {
+ read_unlock(&ksocknal_data.ksnd_global_lock);
+ return 0;
+ }
+
+ for (i = 0; i < nip; i++) {
+ ipaddrs[i] = net->ksnn_interfaces[i].ksni_ipaddr;
+ LASSERT(ipaddrs[i] != 0);
+ }
+
+ read_unlock(&ksocknal_data.ksnd_global_lock);
+ return nip;
}
-int
-ksocknal_match_peerip (ksock_interface_t *iface, __u32 *ips, int nips)
+static int
+ksocknal_match_peerip(struct ksock_interface *iface, __u32 *ips, int nips)
{
- int best_netmatch = 0;
- int best_xor = 0;
- int best = -1;
- int this_xor;
- int this_netmatch;
- int i;
+ int best_netmatch = 0;
+ int best_xor = 0;
+ int best = -1;
+ int this_xor;
+ int this_netmatch;
+ int i;
for (i = 0; i < nips; i++) {
if (ips[i] == 0)
return (best);
}
-int
-ksocknal_select_ips(ksock_peer_t *peer, __u32 *peerips, int n_peerips)
+static int
+ksocknal_select_ips(struct ksock_peer_ni *peer_ni, __u32 *peerips, int n_peerips)
{
- cfs_rwlock_t *global_lock = &ksocknal_data.ksnd_global_lock;
- ksock_net_t *net = peer->ksnp_ni->ni_data;
- ksock_interface_t *iface;
- ksock_interface_t *best_iface;
- int n_ips;
- int i;
- int j;
- int k;
- __u32 ip;
- __u32 xor;
- int this_netmatch;
- int best_netmatch;
- int best_npeers;
+ rwlock_t *global_lock = &ksocknal_data.ksnd_global_lock;
+ struct ksock_net *net = peer_ni->ksnp_ni->ni_data;
+ struct ksock_interface *iface;
+ struct ksock_interface *best_iface;
+ int n_ips;
+ int i;
+ int j;
+ int k;
+ u32 ip;
+ u32 xor;
+ int this_netmatch;
+ int best_netmatch;
+ int best_npeers;
/* CAVEAT EMPTOR: We do all our interface matching with an
* exclusive hold of global lock at IRQ priority. We're only
/* Also note that I'm not going to return more than n_peerips
* interfaces, even if I have more myself */
- cfs_write_lock_bh (global_lock);
+ write_lock_bh(global_lock);
- LASSERT (n_peerips <= LNET_MAX_INTERFACES);
- LASSERT (net->ksnn_ninterfaces <= LNET_MAX_INTERFACES);
+ LASSERT(n_peerips <= LNET_INTERFACES_NUM);
+ LASSERT(net->ksnn_ninterfaces <= LNET_INTERFACES_NUM);
- /* Only match interfaces for additional connections
+ /* Only match interfaces for additional connections
* if I have > 1 interface */
n_ips = (net->ksnn_ninterfaces < 2) ? 0 :
MIN(n_peerips, net->ksnn_ninterfaces);
- for (i = 0; peer->ksnp_n_passive_ips < n_ips; i++) {
+ for (i = 0; peer_ni->ksnp_n_passive_ips < n_ips; i++) {
/* ^ yes really... */
/* If we have any new interfaces, first tick off all the
- * peer IPs that match old interfaces, then choose new
- * interfaces to match the remaining peer IPS.
+ * peer_ni IPs that match old interfaces, then choose new
+ * interfaces to match the remaining peer_ni IPS.
* We don't forget interfaces we've stopped using; we might
* start using them again... */
- if (i < peer->ksnp_n_passive_ips) {
+ if (i < peer_ni->ksnp_n_passive_ips) {
/* Old interface. */
- ip = peer->ksnp_passive_ips[i];
- best_iface = ksocknal_ip2iface(peer->ksnp_ni, ip);
+ ip = peer_ni->ksnp_passive_ips[i];
+ best_iface = ksocknal_ip2iface(peer_ni->ksnp_ni, ip);
- /* peer passive ips are kept up to date */
+ /* peer_ni passive ips are kept up to date */
LASSERT(best_iface != NULL);
} else {
/* choose a new interface */
- LASSERT (i == peer->ksnp_n_passive_ips);
+ LASSERT (i == peer_ni->ksnp_n_passive_ips);
best_iface = NULL;
best_netmatch = 0;
iface = &net->ksnn_interfaces[j];
ip = iface->ksni_ipaddr;
- for (k = 0; k < peer->ksnp_n_passive_ips; k++)
- if (peer->ksnp_passive_ips[k] == ip)
+ for (k = 0; k < peer_ni->ksnp_n_passive_ips; k++)
+ if (peer_ni->ksnp_passive_ips[k] == ip)
break;
- if (k < peer->ksnp_n_passive_ips) /* using it already */
+ if (k < peer_ni->ksnp_n_passive_ips) /* using it already */
continue;
k = ksocknal_match_peerip(iface, peerips, n_peerips);
best_npeers = iface->ksni_npeers;
}
+ LASSERT(best_iface != NULL);
+
best_iface->ksni_npeers++;
ip = best_iface->ksni_ipaddr;
- peer->ksnp_passive_ips[i] = ip;
- peer->ksnp_n_passive_ips = i+1;
+ peer_ni->ksnp_passive_ips[i] = ip;
+ peer_ni->ksnp_n_passive_ips = i+1;
}
- LASSERT (best_iface != NULL);
-
- /* mark the best matching peer IP used */
+ /* mark the best matching peer_ni IP used */
j = ksocknal_match_peerip(best_iface, peerips, n_peerips);
peerips[j] = 0;
}
- /* Overwrite input peer IP addresses */
- memcpy(peerips, peer->ksnp_passive_ips, n_ips * sizeof(*peerips));
+ /* Overwrite input peer_ni IP addresses */
+ memcpy(peerips, peer_ni->ksnp_passive_ips, n_ips * sizeof(*peerips));
- cfs_write_unlock_bh (global_lock);
+ write_unlock_bh(global_lock);
return (n_ips);
}
-void
-ksocknal_create_routes(ksock_peer_t *peer, int port,
+static void
+ksocknal_create_routes(struct ksock_peer_ni *peer_ni, int port,
__u32 *peer_ipaddrs, int npeer_ipaddrs)
{
- ksock_route_t *newroute = NULL;
- cfs_rwlock_t *global_lock = &ksocknal_data.ksnd_global_lock;
- lnet_ni_t *ni = peer->ksnp_ni;
- ksock_net_t *net = ni->ni_data;
- struct list_head *rtmp;
- ksock_route_t *route;
- ksock_interface_t *iface;
- ksock_interface_t *best_iface;
- int best_netmatch;
- int this_netmatch;
- int best_nroutes;
- int i;
- int j;
+ struct ksock_route *newroute = NULL;
+ rwlock_t *global_lock = &ksocknal_data.ksnd_global_lock;
+ struct lnet_ni *ni = peer_ni->ksnp_ni;
+ struct ksock_net *net = ni->ni_data;
+ struct list_head *rtmp;
+ struct ksock_route *route;
+ struct ksock_interface *iface;
+ struct ksock_interface *best_iface;
+ int best_netmatch;
+ int this_netmatch;
+ int best_nroutes;
+ int i;
+ int j;
/* CAVEAT EMPTOR: We do all our interface matching with an
* exclusive hold of global lock at IRQ priority. We're only
* expecting to be dealing with small numbers of interfaces, so the
* O(n**3)-ness here shouldn't matter */
- cfs_write_lock_bh (global_lock);
+ write_lock_bh(global_lock);
if (net->ksnn_ninterfaces < 2) {
- /* Only create additional connections
+ /* Only create additional connections
* if I have > 1 interface */
- cfs_write_unlock_bh (global_lock);
+ write_unlock_bh(global_lock);
return;
}
- LASSERT (npeer_ipaddrs <= LNET_MAX_INTERFACES);
+ LASSERT(npeer_ipaddrs <= LNET_INTERFACES_NUM);
for (i = 0; i < npeer_ipaddrs; i++) {
if (newroute != NULL) {
newroute->ksnr_ipaddr = peer_ipaddrs[i];
} else {
- cfs_write_unlock_bh (global_lock);
+ write_unlock_bh(global_lock);
newroute = ksocknal_create_route(peer_ipaddrs[i], port);
if (newroute == NULL)
return;
- cfs_write_lock_bh (global_lock);
+ write_lock_bh(global_lock);
}
- if (peer->ksnp_closing) {
- /* peer got closed under me */
+ if (peer_ni->ksnp_closing) {
+ /* peer_ni got closed under me */
break;
}
- /* Already got a route? */
- route = NULL;
- list_for_each(rtmp, &peer->ksnp_routes) {
- route = list_entry(rtmp, ksock_route_t, ksnr_list);
+ /* Already got a route? */
+ route = NULL;
+ list_for_each(rtmp, &peer_ni->ksnp_routes) {
+ route = list_entry(rtmp, struct ksock_route, ksnr_list);
- if (route->ksnr_ipaddr == newroute->ksnr_ipaddr)
- break;
+ if (route->ksnr_ipaddr == newroute->ksnr_ipaddr)
+ break;
- route = NULL;
- }
- if (route != NULL)
- continue;
+ route = NULL;
+ }
+ if (route != NULL)
+ continue;
- best_iface = NULL;
- best_nroutes = 0;
- best_netmatch = 0;
+ best_iface = NULL;
+ best_nroutes = 0;
+ best_netmatch = 0;
- LASSERT (net->ksnn_ninterfaces <= LNET_MAX_INTERFACES);
+ LASSERT(net->ksnn_ninterfaces <= LNET_INTERFACES_NUM);
- /* Select interface to connect from */
- for (j = 0; j < net->ksnn_ninterfaces; j++) {
- iface = &net->ksnn_interfaces[j];
+ /* Select interface to connect from */
+ for (j = 0; j < net->ksnn_ninterfaces; j++) {
+ iface = &net->ksnn_interfaces[j];
- /* Using this interface already? */
- list_for_each(rtmp, &peer->ksnp_routes) {
- route = list_entry(rtmp, ksock_route_t, ksnr_list);
+ /* Using this interface already? */
+ list_for_each(rtmp, &peer_ni->ksnp_routes) {
+ route = list_entry(rtmp, struct ksock_route,
+ ksnr_list);
- if (route->ksnr_myipaddr == iface->ksni_ipaddr)
- break;
+ if (route->ksnr_myipaddr == iface->ksni_ipaddr)
+ break;
- route = NULL;
- }
- if (route != NULL)
- continue;
+ route = NULL;
+ }
+ if (route != NULL)
+ continue;
this_netmatch = (((iface->ksni_ipaddr ^
newroute->ksnr_ipaddr) &
newroute->ksnr_myipaddr = best_iface->ksni_ipaddr;
best_iface->ksni_nroutes++;
- ksocknal_add_route_locked(peer, newroute);
+ ksocknal_add_route_locked(peer_ni, newroute);
newroute = NULL;
}
- cfs_write_unlock_bh (global_lock);
+ write_unlock_bh(global_lock);
if (newroute != NULL)
ksocknal_route_decref(newroute);
}
int
-ksocknal_accept (lnet_ni_t *ni, cfs_socket_t *sock)
+ksocknal_accept(struct lnet_ni *ni, struct socket *sock)
{
- ksock_connreq_t *cr;
- int rc;
- __u32 peer_ip;
- int peer_port;
-
- rc = libcfs_sock_getaddr(sock, 1, &peer_ip, &peer_port);
- LASSERT (rc == 0); /* we succeeded before */
-
- LIBCFS_ALLOC(cr, sizeof(*cr));
- if (cr == NULL) {
- LCONSOLE_ERROR_MSG(0x12f, "Dropping connection request from "
- "%u.%u.%u.%u: memory exhausted\n",
- HIPQUAD(peer_ip));
- return -ENOMEM;
- }
+ struct ksock_connreq *cr;
+ int rc;
+ u32 peer_ip;
+ int peer_port;
- lnet_ni_addref(ni);
- cr->ksncr_ni = ni;
- cr->ksncr_sock = sock;
+ rc = lnet_sock_getaddr(sock, true, &peer_ip, &peer_port);
+ LASSERT(rc == 0); /* we succeeded before */
- cfs_spin_lock_bh (&ksocknal_data.ksnd_connd_lock);
+ LIBCFS_ALLOC(cr, sizeof(*cr));
+ if (cr == NULL) {
+ LCONSOLE_ERROR_MSG(0x12f, "Dropping connection request from "
+ "%pI4h: memory exhausted\n", &peer_ip);
+ return -ENOMEM;
+ }
- list_add_tail(&cr->ksncr_list, &ksocknal_data.ksnd_connd_connreqs);
- cfs_waitq_signal(&ksocknal_data.ksnd_connd_waitq);
+ lnet_ni_addref(ni);
+ cr->ksncr_ni = ni;
+ cr->ksncr_sock = sock;
- cfs_spin_unlock_bh (&ksocknal_data.ksnd_connd_lock);
- return 0;
+ spin_lock_bh(&ksocknal_data.ksnd_connd_lock);
+
+ list_add_tail(&cr->ksncr_list, &ksocknal_data.ksnd_connd_connreqs);
+ wake_up(&ksocknal_data.ksnd_connd_waitq);
+
+ spin_unlock_bh(&ksocknal_data.ksnd_connd_lock);
+ return 0;
}
-int
-ksocknal_connecting (ksock_peer_t *peer, __u32 ipaddr)
+static int
+ksocknal_connecting(struct ksock_peer_ni *peer_ni, __u32 ipaddr)
{
- ksock_route_t *route;
+ struct ksock_route *route;
- cfs_list_for_each_entry_typed (route, &peer->ksnp_routes,
- ksock_route_t, ksnr_list) {
-
- if (route->ksnr_ipaddr == ipaddr)
- return route->ksnr_connecting;
- }
- return 0;
+ list_for_each_entry(route, &peer_ni->ksnp_routes, ksnr_list) {
+ if (route->ksnr_ipaddr == ipaddr)
+ return route->ksnr_connecting;
+ }
+ return 0;
}
int
-ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
- cfs_socket_t *sock, int type)
+ksocknal_create_conn(struct lnet_ni *ni, struct ksock_route *route,
+ struct socket *sock, int type)
{
- cfs_rwlock_t *global_lock = &ksocknal_data.ksnd_global_lock;
- CFS_LIST_HEAD (zombies);
- lnet_process_id_t peerid;
- struct list_head *tmp;
- __u64 incarnation;
- ksock_conn_t *conn;
- ksock_conn_t *conn2;
- ksock_peer_t *peer = NULL;
- ksock_peer_t *peer2;
- ksock_sched_t *sched;
- ksock_hello_msg_t *hello;
- unsigned int irq;
- ksock_tx_t *tx;
- ksock_tx_t *txtmp;
- int rc;
- int active;
- char *warn = NULL;
+ rwlock_t *global_lock = &ksocknal_data.ksnd_global_lock;
+ LIST_HEAD(zombies);
+ struct lnet_process_id peerid;
+ struct list_head *tmp;
+ u64 incarnation;
+ struct ksock_conn *conn;
+ struct ksock_conn *conn2;
+ struct ksock_peer_ni *peer_ni = NULL;
+ struct ksock_peer_ni *peer2;
+ struct ksock_sched *sched;
+ struct ksock_hello_msg *hello;
+ int cpt;
+ struct ksock_tx *tx;
+ struct ksock_tx *txtmp;
+ int rc;
+ int rc2;
+ int active;
+ char *warn = NULL;
active = (route != NULL);
LASSERT (active == (type != SOCKLND_CONN_NONE));
- irq = ksocknal_lib_sock_irq (sock);
-
LIBCFS_ALLOC(conn, sizeof(*conn));
if (conn == NULL) {
rc = -ENOMEM;
goto failed_0;
}
- memset (conn, 0, sizeof (*conn));
-
conn->ksnc_peer = NULL;
conn->ksnc_route = NULL;
conn->ksnc_sock = sock;
- /* 2 ref, 1 for conn, another extra ref prevents socket
- * being closed before establishment of connection */
- cfs_atomic_set (&conn->ksnc_sock_refcount, 2);
- conn->ksnc_type = type;
- ksocknal_lib_save_callback(sock, conn);
- cfs_atomic_set (&conn->ksnc_conn_refcount, 1); /* 1 ref for me */
-
- conn->ksnc_rx_ready = 0;
- conn->ksnc_rx_scheduled = 0;
-
- CFS_INIT_LIST_HEAD (&conn->ksnc_tx_queue);
- conn->ksnc_tx_ready = 0;
- conn->ksnc_tx_scheduled = 0;
- conn->ksnc_tx_carrier = NULL;
- cfs_atomic_set (&conn->ksnc_tx_nob, 0);
-
- LIBCFS_ALLOC(hello, offsetof(ksock_hello_msg_t,
- kshm_ips[LNET_MAX_INTERFACES]));
+ /* 2 ref, 1 for conn, another extra ref prevents socket
+ * being closed before establishment of connection */
+ atomic_set (&conn->ksnc_sock_refcount, 2);
+ conn->ksnc_type = type;
+ ksocknal_lib_save_callback(sock, conn);
+ atomic_set (&conn->ksnc_conn_refcount, 1); /* 1 ref for me */
+
+ conn->ksnc_rx_ready = 0;
+ conn->ksnc_rx_scheduled = 0;
+
+ INIT_LIST_HEAD(&conn->ksnc_tx_queue);
+ conn->ksnc_tx_ready = 0;
+ conn->ksnc_tx_scheduled = 0;
+ conn->ksnc_tx_carrier = NULL;
+ atomic_set (&conn->ksnc_tx_nob, 0);
+
+ LIBCFS_ALLOC(hello, offsetof(struct ksock_hello_msg,
+ kshm_ips[LNET_INTERFACES_NUM]));
if (hello == NULL) {
rc = -ENOMEM;
goto failed_1;
if (rc != 0)
goto failed_1;
- /* Find out/confirm peer's NID and connection type and get the
+ /* Find out/confirm peer_ni's NID and connection type and get the
* vector of interfaces she's willing to let me connect to.
- * Passive connections use the listener timeout since the peer sends
+ * Passive connections use the listener timeout since the peer_ni sends
* eagerly */
if (active) {
- peer = route->ksnr_peer;
- LASSERT(ni == peer->ksnp_ni);
+ peer_ni = route->ksnr_peer;
+ LASSERT(ni == peer_ni->ksnp_ni);
/* Active connection sends HELLO eagerly */
hello->kshm_nips = ksocknal_local_ipvec(ni, hello->kshm_ips);
- peerid = peer->ksnp_id;
+ peerid = peer_ni->ksnp_id;
- cfs_write_lock_bh(global_lock);
- conn->ksnc_proto = peer->ksnp_proto;
- cfs_write_unlock_bh(global_lock);
+ write_lock_bh(global_lock);
+ conn->ksnc_proto = peer_ni->ksnp_proto;
+ write_unlock_bh(global_lock);
if (conn->ksnc_proto == NULL) {
conn->ksnc_proto = &ksocknal_protocol_v3x;
peerid.nid = LNET_NID_ANY;
peerid.pid = LNET_PID_ANY;
- /* Passive, get protocol from peer */
+ /* Passive, get protocol from peer_ni */
conn->ksnc_proto = NULL;
}
LASSERT (conn->ksnc_proto != NULL);
LASSERT (peerid.nid != LNET_NID_ANY);
+ cpt = lnet_cpt_of_nid(peerid.nid, ni);
+
if (active) {
- ksocknal_peer_addref(peer);
- cfs_write_lock_bh (global_lock);
+ ksocknal_peer_addref(peer_ni);
+ write_lock_bh(global_lock);
} else {
- rc = ksocknal_create_peer(&peer, ni, peerid);
+ rc = ksocknal_create_peer(&peer_ni, ni, peerid);
if (rc != 0)
goto failed_1;
- cfs_write_lock_bh (global_lock);
+ write_lock_bh(global_lock);
/* called with a ref on ni, so shutdown can't have started */
- LASSERT (((ksock_net_t *) ni->ni_data)->ksnn_shutdown == 0);
-
- peer2 = ksocknal_find_peer_locked(ni, peerid);
- if (peer2 == NULL) {
- /* NB this puts an "empty" peer in the peer
- * table (which takes my ref) */
- list_add_tail(&peer->ksnp_list,
- ksocknal_nid2peerlist(peerid.nid));
- } else {
- ksocknal_peer_decref(peer);
- peer = peer2;
- }
+ LASSERT(((struct ksock_net *) ni->ni_data)->ksnn_shutdown == 0);
+
+ peer2 = ksocknal_find_peer_locked(ni, peerid);
+ if (peer2 == NULL) {
+ /* NB this puts an "empty" peer_ni in the peer_ni
+ * table (which takes my ref) */
+ list_add_tail(&peer_ni->ksnp_list,
+ ksocknal_nid2peerlist(peerid.nid));
+ } else {
+ ksocknal_peer_decref(peer_ni);
+ peer_ni = peer2;
+ }
/* +1 ref for me */
- ksocknal_peer_addref(peer);
- peer->ksnp_accepting++;
+ ksocknal_peer_addref(peer_ni);
+ peer_ni->ksnp_accepting++;
/* Am I already connecting to this guy? Resolve in
* favour of higher NID... */
if (peerid.nid < ni->ni_nid &&
- ksocknal_connecting(peer, conn->ksnc_ipaddr)) {
+ ksocknal_connecting(peer_ni, conn->ksnc_ipaddr)) {
rc = EALREADY;
warn = "connection race resolution";
goto failed_2;
}
}
- if (peer->ksnp_closing ||
+ if (peer_ni->ksnp_closing ||
(active && route->ksnr_deleted)) {
- /* peer/route got closed under me */
+ /* peer_ni/route got closed under me */
rc = -ESTALE;
- warn = "peer/route removed";
+ warn = "peer_ni/route removed";
goto failed_2;
}
- if (peer->ksnp_proto == NULL) {
- /* Never connected before.
- * NB recv_hello may have returned EPROTO to signal my peer
- * wants a different protocol than the one I asked for.
- */
- LASSERT (list_empty(&peer->ksnp_conns));
+ if (peer_ni->ksnp_proto == NULL) {
+ /* Never connected before.
+ * NB recv_hello may have returned EPROTO to signal my peer_ni
+ * wants a different protocol than the one I asked for.
+ */
+ LASSERT(list_empty(&peer_ni->ksnp_conns));
- peer->ksnp_proto = conn->ksnc_proto;
- peer->ksnp_incarnation = incarnation;
- }
+ peer_ni->ksnp_proto = conn->ksnc_proto;
+ peer_ni->ksnp_incarnation = incarnation;
+ }
- if (peer->ksnp_proto != conn->ksnc_proto ||
- peer->ksnp_incarnation != incarnation) {
- /* Peer rebooted or I've got the wrong protocol version */
- ksocknal_close_peer_conns_locked(peer, 0, 0);
+ if (peer_ni->ksnp_proto != conn->ksnc_proto ||
+ peer_ni->ksnp_incarnation != incarnation) {
+ /* peer_ni rebooted or I've got the wrong protocol version */
+ ksocknal_close_peer_conns_locked(peer_ni, 0, 0);
- peer->ksnp_proto = NULL;
+ peer_ni->ksnp_proto = NULL;
rc = ESTALE;
- warn = peer->ksnp_incarnation != incarnation ?
- "peer rebooted" :
+ warn = peer_ni->ksnp_incarnation != incarnation ?
+ "peer_ni rebooted" :
"wrong proto version";
goto failed_2;
}
goto failed_2;
}
- /* Refuse to duplicate an existing connection, unless this is a
- * loopback connection */
- if (conn->ksnc_ipaddr != conn->ksnc_myipaddr) {
- list_for_each(tmp, &peer->ksnp_conns) {
- conn2 = list_entry(tmp, ksock_conn_t, ksnc_list);
+ /* Refuse to duplicate an existing connection, unless this is a
+ * loopback connection */
+ if (conn->ksnc_ipaddr != conn->ksnc_myipaddr) {
+ list_for_each(tmp, &peer_ni->ksnp_conns) {
+ conn2 = list_entry(tmp, struct ksock_conn, ksnc_list);
if (conn2->ksnc_ipaddr != conn->ksnc_ipaddr ||
conn2->ksnc_myipaddr != conn->ksnc_myipaddr ||
conn2->ksnc_type != conn->ksnc_type)
continue;
- /* Reply on a passive connection attempt so the peer
+ /* Reply on a passive connection attempt so the peer_ni
* realises we're connected. */
LASSERT (rc == 0);
if (!active)
* code below probably isn't going to work. */
if (active &&
route->ksnr_ipaddr != conn->ksnc_ipaddr) {
- CERROR("Route %s %u.%u.%u.%u connected to %u.%u.%u.%u\n",
- libcfs_id2str(peer->ksnp_id),
- HIPQUAD(route->ksnr_ipaddr),
- HIPQUAD(conn->ksnc_ipaddr));
- }
-
- /* Search for a route corresponding to the new connection and
- * create an association. This allows incoming connections created
- * by routes in my peer to match my own route entries so I don't
- * continually create duplicate routes. */
- list_for_each (tmp, &peer->ksnp_routes) {
- route = list_entry(tmp, ksock_route_t, ksnr_list);
-
- if (route->ksnr_ipaddr != conn->ksnc_ipaddr)
- continue;
-
- ksocknal_associate_route_conn_locked(route, conn);
- break;
- }
-
- conn->ksnc_peer = peer; /* conn takes my ref on peer */
- peer->ksnp_last_alive = cfs_time_current();
- peer->ksnp_send_keepalive = 0;
- peer->ksnp_error = 0;
-
- sched = ksocknal_choose_scheduler_locked (irq);
+ CERROR("Route %s %pI4h connected to %pI4h\n",
+ libcfs_id2str(peer_ni->ksnp_id),
+ &route->ksnr_ipaddr,
+ &conn->ksnc_ipaddr);
+ }
+
+ /* Search for a route corresponding to the new connection and
+ * create an association. This allows incoming connections created
+ * by routes in my peer_ni to match my own route entries so I don't
+ * continually create duplicate routes. */
+ list_for_each(tmp, &peer_ni->ksnp_routes) {
+ route = list_entry(tmp, struct ksock_route, ksnr_list);
+
+ if (route->ksnr_ipaddr != conn->ksnc_ipaddr)
+ continue;
+
+ ksocknal_associate_route_conn_locked(route, conn);
+ break;
+ }
+
+ conn->ksnc_peer = peer_ni; /* conn takes my ref on peer_ni */
+ peer_ni->ksnp_last_alive = ktime_get_seconds();
+ peer_ni->ksnp_send_keepalive = 0;
+ peer_ni->ksnp_error = 0;
+
+ sched = ksocknal_choose_scheduler_locked(cpt);
+ if (!sched) {
+ CERROR("no schedulers available. node is unhealthy\n");
+ goto failed_2;
+ }
+ /*
+ * The cpt might have changed if we ended up selecting a non cpt
+ * native scheduler. So use the scheduler's cpt instead.
+ */
+ cpt = sched->kss_cpt;
sched->kss_nconns++;
conn->ksnc_scheduler = sched;
- conn->ksnc_tx_last_post = cfs_time_current();
- /* Set the deadline for the outgoing HELLO to drain */
- conn->ksnc_tx_bufnob = libcfs_sock_wmem_queued(sock);
- conn->ksnc_tx_deadline = cfs_time_shift(*ksocknal_tunables.ksnd_timeout);
- cfs_mb(); /* order with adding to peer's conn list */
+ conn->ksnc_tx_last_post = ktime_get_seconds();
+ /* Set the deadline for the outgoing HELLO to drain */
+ conn->ksnc_tx_bufnob = sock->sk->sk_wmem_queued;
+ conn->ksnc_tx_deadline = ktime_get_seconds() +
+ lnet_get_lnd_timeout();
+ smp_mb(); /* order with adding to peer_ni's conn list */
- list_add (&conn->ksnc_list, &peer->ksnp_conns);
- ksocknal_conn_addref(conn);
+ list_add(&conn->ksnc_list, &peer_ni->ksnp_conns);
+ ksocknal_conn_addref(conn);
- ksocknal_new_packet(conn, 0);
+ ksocknal_new_packet(conn, 0);
conn->ksnc_zc_capable = ksocknal_lib_zc_capable(conn);
- /* Take packets blocking for this connection. */
- list_for_each_entry_safe(tx, txtmp, &peer->ksnp_tx_queue, tx_list) {
- if (conn->ksnc_proto->pro_match_tx(conn, tx, tx->tx_nonblk) == SOCKNAL_MATCH_NO)
- continue;
+ /* Take packets blocking for this connection. */
+ list_for_each_entry_safe(tx, txtmp, &peer_ni->ksnp_tx_queue, tx_list) {
+ if (conn->ksnc_proto->pro_match_tx(conn, tx, tx->tx_nonblk) ==
+ SOCKNAL_MATCH_NO)
+ continue;
- list_del (&tx->tx_list);
- ksocknal_queue_tx_locked (tx, conn);
- }
+ list_del(&tx->tx_list);
+ ksocknal_queue_tx_locked(tx, conn);
+ }
- cfs_write_unlock_bh (global_lock);
+ write_unlock_bh(global_lock);
/* We've now got a new connection. Any errors from here on are just
* like "normal" comms errors and we close the connection normally.
* NB (a) we still have to send the reply HELLO for passive
- * connections,
+ * connections,
* (b) normal I/O on the conn is blocked until I setup and call the
* socket callbacks.
*/
- ksocknal_lib_bind_irq (irq);
-
- CDEBUG(D_NET, "New conn %s p %d.x %u.%u.%u.%u -> %u.%u.%u.%u/%d"
- " incarnation:"LPD64" sched[%d]/%d\n",
- libcfs_id2str(peerid), conn->ksnc_proto->pro_version,
- HIPQUAD(conn->ksnc_myipaddr), HIPQUAD(conn->ksnc_ipaddr),
- conn->ksnc_port, incarnation,
- (int)(conn->ksnc_scheduler - ksocknal_data.ksnd_schedulers), irq);
+ CDEBUG(D_NET, "New conn %s p %d.x %pI4h -> %pI4h/%d"
+ " incarnation:%lld sched[%d]\n",
+ libcfs_id2str(peerid), conn->ksnc_proto->pro_version,
+ &conn->ksnc_myipaddr, &conn->ksnc_ipaddr,
+ conn->ksnc_port, incarnation, cpt);
if (active) {
/* additional routes after interface exchange? */
- ksocknal_create_routes(peer, conn->ksnc_port,
+ ksocknal_create_routes(peer_ni, conn->ksnc_port,
hello->kshm_ips, hello->kshm_nips);
} else {
- hello->kshm_nips = ksocknal_select_ips(peer, hello->kshm_ips,
+ hello->kshm_nips = ksocknal_select_ips(peer_ni, hello->kshm_ips,
hello->kshm_nips);
rc = ksocknal_send_hello(ni, conn, peerid.nid, hello);
}
- LIBCFS_FREE(hello, offsetof(ksock_hello_msg_t,
- kshm_ips[LNET_MAX_INTERFACES]));
+ LIBCFS_FREE(hello, offsetof(struct ksock_hello_msg,
+ kshm_ips[LNET_INTERFACES_NUM]));
/* setup the socket AFTER I've received hello (it disables
* SO_LINGER). I might call back to the acceptor who may want
if (rc == 0)
rc = ksocknal_lib_setup_sock(sock);
- cfs_write_lock_bh(global_lock);
+ write_lock_bh(global_lock);
/* NB my callbacks block while I hold ksnd_global_lock */
ksocknal_lib_set_callback(sock, conn);
if (!active)
- peer->ksnp_accepting--;
+ peer_ni->ksnp_accepting--;
- cfs_write_unlock_bh(global_lock);
+ write_unlock_bh(global_lock);
if (rc != 0) {
- cfs_write_lock_bh(global_lock);
- ksocknal_close_conn_locked(conn, rc);
- cfs_write_unlock_bh(global_lock);
+ write_lock_bh(global_lock);
+ if (!conn->ksnc_closing) {
+ /* could be closed by another thread */
+ ksocknal_close_conn_locked(conn, rc);
+ }
+ write_unlock_bh(global_lock);
} else if (ksocknal_connsock_addref(conn) == 0) {
/* Allow I/O to proceed. */
ksocknal_read_callback(conn);
ksocknal_conn_decref(conn);
return rc;
- failed_2:
- if (!peer->ksnp_closing &&
- list_empty (&peer->ksnp_conns) &&
- list_empty (&peer->ksnp_routes)) {
- list_add(&zombies, &peer->ksnp_tx_queue);
- list_del_init(&peer->ksnp_tx_queue);
- ksocknal_unlink_peer_locked(peer);
- }
+failed_2:
+ if (!peer_ni->ksnp_closing &&
+ list_empty(&peer_ni->ksnp_conns) &&
+ list_empty(&peer_ni->ksnp_routes)) {
+ list_add(&zombies, &peer_ni->ksnp_tx_queue);
+ list_del_init(&peer_ni->ksnp_tx_queue);
+ ksocknal_unlink_peer_locked(peer_ni);
+ }
- cfs_write_unlock_bh (global_lock);
+ write_unlock_bh(global_lock);
if (warn != NULL) {
if (rc < 0)
if (!active) {
if (rc > 0) {
- /* Request retry by replying with CONN_NONE
+ /* Request retry by replying with CONN_NONE
* ksnc_proto has been set already */
conn->ksnc_type = SOCKLND_CONN_NONE;
hello->kshm_nips = 0;
ksocknal_send_hello(ni, conn, peerid.nid, hello);
}
- cfs_write_lock_bh(global_lock);
- peer->ksnp_accepting--;
- cfs_write_unlock_bh(global_lock);
+ write_lock_bh(global_lock);
+ peer_ni->ksnp_accepting--;
+ write_unlock_bh(global_lock);
}
- ksocknal_txlist_done(ni, &zombies, 1);
- ksocknal_peer_decref(peer);
+ /*
+ * If we get here without an error code, just use -EALREADY.
+ * Depending on how we got here, the error may be positive
+ * or negative. Normalize the value for ksocknal_txlist_done().
+ */
+ rc2 = (rc == 0 ? -EALREADY : (rc > 0 ? -rc : rc));
+ ksocknal_txlist_done(ni, &zombies, rc2);
+ ksocknal_peer_decref(peer_ni);
- failed_1:
- if (hello != NULL)
- LIBCFS_FREE(hello, offsetof(ksock_hello_msg_t,
- kshm_ips[LNET_MAX_INTERFACES]));
+failed_1:
+ if (hello != NULL)
+ LIBCFS_FREE(hello, offsetof(struct ksock_hello_msg,
+ kshm_ips[LNET_INTERFACES_NUM]));
- LIBCFS_FREE (conn, sizeof(*conn));
+ LIBCFS_FREE(conn, sizeof(*conn));
- failed_0:
- libcfs_sock_release(sock);
- return rc;
+failed_0:
+ sock_release(sock);
+ return rc;
}
void
-ksocknal_close_conn_locked (ksock_conn_t *conn, int error)
+ksocknal_close_conn_locked(struct ksock_conn *conn, int error)
{
/* This just does the immmediate housekeeping, and queues the
* connection for the reaper to terminate.
* Caller holds ksnd_global_lock exclusively in irq context */
- ksock_peer_t *peer = conn->ksnc_peer;
- ksock_route_t *route;
- ksock_conn_t *conn2;
- struct list_head *tmp;
-
- LASSERT (peer->ksnp_error == 0);
- LASSERT (!conn->ksnc_closing);
- conn->ksnc_closing = 1;
-
- /* ksnd_deathrow_conns takes over peer's ref */
- list_del (&conn->ksnc_list);
-
- route = conn->ksnc_route;
- if (route != NULL) {
- /* dissociate conn from route... */
- LASSERT (!route->ksnr_deleted);
- LASSERT ((route->ksnr_connected & (1 << conn->ksnc_type)) != 0);
-
- conn2 = NULL;
- list_for_each(tmp, &peer->ksnp_conns) {
- conn2 = list_entry(tmp, ksock_conn_t, ksnc_list);
-
- if (conn2->ksnc_route == route &&
- conn2->ksnc_type == conn->ksnc_type)
- break;
+ struct ksock_peer_ni *peer_ni = conn->ksnc_peer;
+ struct ksock_route *route;
+ struct ksock_conn *conn2;
+ struct list_head *tmp;
- conn2 = NULL;
- }
- if (conn2 == NULL)
- route->ksnr_connected &= ~(1 << conn->ksnc_type);
+ LASSERT(peer_ni->ksnp_error == 0);
+ LASSERT(!conn->ksnc_closing);
+ conn->ksnc_closing = 1;
- conn->ksnc_route = NULL;
+ /* ksnd_deathrow_conns takes over peer_ni's ref */
+ list_del(&conn->ksnc_list);
-#if 0 /* irrelevent with only eager routes */
- list_del (&route->ksnr_list); /* make route least favourite */
- list_add_tail (&route->ksnr_list, &peer->ksnp_routes);
-#endif
- ksocknal_route_decref(route); /* drop conn's ref on route */
- }
+ route = conn->ksnc_route;
+ if (route != NULL) {
+ /* dissociate conn from route... */
+ LASSERT(!route->ksnr_deleted);
+ LASSERT((route->ksnr_connected & (1 << conn->ksnc_type)) != 0);
- if (list_empty (&peer->ksnp_conns)) {
- /* No more connections to this peer */
+ conn2 = NULL;
+ list_for_each(tmp, &peer_ni->ksnp_conns) {
+ conn2 = list_entry(tmp, struct ksock_conn, ksnc_list);
- if (!list_empty(&peer->ksnp_tx_queue)) {
- ksock_tx_t *tx;
+ if (conn2->ksnc_route == route &&
+ conn2->ksnc_type == conn->ksnc_type)
+ break;
- LASSERT (conn->ksnc_proto == &ksocknal_protocol_v3x);
+ conn2 = NULL;
+ }
+ if (conn2 == NULL)
+ route->ksnr_connected &= ~(1 << conn->ksnc_type);
- /* throw them to the last connection...,
- * these TXs will be send to /dev/null by scheduler */
- list_for_each_entry(tx, &peer->ksnp_tx_queue, tx_list)
- ksocknal_tx_prep(conn, tx);
+ conn->ksnc_route = NULL;
- spin_lock_bh(&conn->ksnc_scheduler->kss_lock);
- list_splice_init(&peer->ksnp_tx_queue, &conn->ksnc_tx_queue);
- spin_unlock_bh(&conn->ksnc_scheduler->kss_lock);
- }
+ ksocknal_route_decref(route); /* drop conn's ref on route */
+ }
- peer->ksnp_proto = NULL; /* renegotiate protocol version */
- peer->ksnp_error = error; /* stash last conn close reason */
+ if (list_empty(&peer_ni->ksnp_conns)) {
+ /* No more connections to this peer_ni */
- if (list_empty (&peer->ksnp_routes)) {
- /* I've just closed last conn belonging to a
- * peer with no routes to it */
- ksocknal_unlink_peer_locked (peer);
- }
- }
+ if (!list_empty(&peer_ni->ksnp_tx_queue)) {
+ struct ksock_tx *tx;
+
+ LASSERT(conn->ksnc_proto == &ksocknal_protocol_v3x);
+
+ /* throw them to the last connection...,
+ * these TXs will be send to /dev/null by scheduler */
+ list_for_each_entry(tx, &peer_ni->ksnp_tx_queue,
+ tx_list)
+ ksocknal_tx_prep(conn, tx);
+
+ spin_lock_bh(&conn->ksnc_scheduler->kss_lock);
+ list_splice_init(&peer_ni->ksnp_tx_queue,
+ &conn->ksnc_tx_queue);
+ spin_unlock_bh(&conn->ksnc_scheduler->kss_lock);
+ }
+
+ /* renegotiate protocol version */
+ peer_ni->ksnp_proto = NULL;
+ /* stash last conn close reason */
+ peer_ni->ksnp_error = error;
+
+ if (list_empty(&peer_ni->ksnp_routes)) {
+ /* I've just closed last conn belonging to a
+ * peer_ni with no routes to it */
+ ksocknal_unlink_peer_locked(peer_ni);
+ }
+ }
- cfs_spin_lock_bh (&ksocknal_data.ksnd_reaper_lock);
+ spin_lock_bh(&ksocknal_data.ksnd_reaper_lock);
- list_add_tail (&conn->ksnc_list, &ksocknal_data.ksnd_deathrow_conns);
- cfs_waitq_signal (&ksocknal_data.ksnd_reaper_waitq);
+ list_add_tail(&conn->ksnc_list, &ksocknal_data.ksnd_deathrow_conns);
+ wake_up(&ksocknal_data.ksnd_reaper_waitq);
- cfs_spin_unlock_bh (&ksocknal_data.ksnd_reaper_lock);
+ spin_unlock_bh(&ksocknal_data.ksnd_reaper_lock);
}
void
-ksocknal_peer_failed (ksock_peer_t *peer)
+ksocknal_peer_failed(struct ksock_peer_ni *peer_ni)
{
- time_t last_alive = 0;
- int notify = 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. */
-
- cfs_read_lock (&ksocknal_data.ksnd_global_lock);
-
- if ((peer->ksnp_id.pid & LNET_PID_USERFLAG) == 0 &&
- list_empty(&peer->ksnp_conns) &&
- peer->ksnp_accepting == 0 &&
- ksocknal_find_connecting_route_locked(peer) == NULL) {
- notify = 1;
- last_alive = (time_t) (cfs_time_current_sec() -
- cfs_duration_sec(cfs_time_current() -
- peer->ksnp_last_alive));
- }
+ int notify = 0;
+ time64_t last_alive = 0;
+
+ /* There has been a connection failure or comms error; but I'll only
+ * tell LNET I think the peer_ni 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);
- cfs_read_unlock (&ksocknal_data.ksnd_global_lock);
+ if ((peer_ni->ksnp_id.pid & LNET_PID_USERFLAG) == 0 &&
+ list_empty(&peer_ni->ksnp_conns) &&
+ peer_ni->ksnp_accepting == 0 &&
+ ksocknal_find_connecting_route_locked(peer_ni) == NULL) {
+ notify = 1;
+ last_alive = peer_ni->ksnp_last_alive;
+ }
- if (notify)
- lnet_notify (peer->ksnp_ni, peer->ksnp_id.nid, 0,
- last_alive);
+ read_unlock(&ksocknal_data.ksnd_global_lock);
+
+ if (notify)
+ lnet_notify(peer_ni->ksnp_ni, peer_ni->ksnp_id.nid,
+ false, false, last_alive);
}
void
-ksocknal_finalize_zcreq(ksock_conn_t *conn)
+ksocknal_finalize_zcreq(struct ksock_conn *conn)
{
- ksock_peer_t *peer = conn->ksnc_peer;
- ksock_tx_t *tx;
- ksock_tx_t *tmp;
- CFS_LIST_HEAD (zlist);
+ struct ksock_peer_ni *peer_ni = conn->ksnc_peer;
+ struct ksock_tx *tx;
+ struct ksock_tx *tmp;
+ LIST_HEAD(zlist);
- /* NB safe to finalize TXs because closing of socket will
- * abort all buffered data */
- LASSERT (conn->ksnc_sock == NULL);
+ /* NB safe to finalize TXs because closing of socket will
+ * abort all buffered data */
+ LASSERT(conn->ksnc_sock == NULL);
- cfs_spin_lock(&peer->ksnp_lock);
+ spin_lock(&peer_ni->ksnp_lock);
- cfs_list_for_each_entry_safe_typed(tx, tmp, &peer->ksnp_zc_req_list,
- ksock_tx_t, tx_zc_list) {
- if (tx->tx_conn != conn)
- continue;
+ list_for_each_entry_safe(tx, tmp, &peer_ni->ksnp_zc_req_list, tx_zc_list) {
+ if (tx->tx_conn != conn)
+ continue;
- LASSERT (tx->tx_msg.ksm_zc_cookies[0] != 0);
+ LASSERT(tx->tx_msg.ksm_zc_cookies[0] != 0);
- tx->tx_msg.ksm_zc_cookies[0] = 0;
- list_del(&tx->tx_zc_list);
- list_add(&tx->tx_zc_list, &zlist);
- }
+ tx->tx_msg.ksm_zc_cookies[0] = 0;
+ tx->tx_zc_aborted = 1; /* mark it as not-acked */
+ list_del(&tx->tx_zc_list);
+ list_add(&tx->tx_zc_list, &zlist);
+ }
- cfs_spin_unlock(&peer->ksnp_lock);
+ spin_unlock(&peer_ni->ksnp_lock);
- while (!list_empty(&zlist)) {
- tx = list_entry(zlist.next, ksock_tx_t, tx_zc_list);
+ while (!list_empty(&zlist)) {
+ tx = list_entry(zlist.next, struct ksock_tx, tx_zc_list);
- list_del(&tx->tx_zc_list);
- ksocknal_tx_decref(tx);
- }
+ list_del(&tx->tx_zc_list);
+ ksocknal_tx_decref(tx);
+ }
}
void
-ksocknal_terminate_conn (ksock_conn_t *conn)
+ksocknal_terminate_conn(struct ksock_conn *conn)
{
/* This gets called by the reaper (guaranteed thread context) to
* disengage the socket from its callbacks and close it.
* ksnc_refcount will eventually hit zero, and then the reaper will
* destroy it. */
- ksock_peer_t *peer = conn->ksnc_peer;
- ksock_sched_t *sched = conn->ksnc_scheduler;
- int failed = 0;
+ struct ksock_peer_ni *peer_ni = conn->ksnc_peer;
+ struct ksock_sched *sched = conn->ksnc_scheduler;
+ int failed = 0;
LASSERT(conn->ksnc_closing);
/* wake up the scheduler to "send" all remaining packets to /dev/null */
- cfs_spin_lock_bh (&sched->kss_lock);
+ spin_lock_bh(&sched->kss_lock);
/* a closing conn is always ready to tx */
conn->ksnc_tx_ready = 1;
if (!conn->ksnc_tx_scheduled &&
- !list_empty(&conn->ksnc_tx_queue)){
- list_add_tail (&conn->ksnc_tx_list,
+ !list_empty(&conn->ksnc_tx_queue)) {
+ list_add_tail(&conn->ksnc_tx_list,
&sched->kss_tx_conns);
conn->ksnc_tx_scheduled = 1;
/* extra ref for scheduler */
- ksocknal_conn_addref(conn);
+ ksocknal_conn_addref(conn);
- cfs_waitq_signal (&sched->kss_waitq);
- }
+ wake_up (&sched->kss_waitq);
+ }
- cfs_spin_unlock_bh (&sched->kss_lock);
+ spin_unlock_bh(&sched->kss_lock);
- /* serialise with callbacks */
- cfs_write_lock_bh (&ksocknal_data.ksnd_global_lock);
+ /* serialise with callbacks */
+ write_lock_bh(&ksocknal_data.ksnd_global_lock);
ksocknal_lib_reset_callback(conn->ksnc_sock, conn);
* scheduler yet, but it _has_ committed to terminate... */
conn->ksnc_scheduler->kss_nconns--;
- if (peer->ksnp_error != 0) {
- /* peer's last conn closed in error */
- LASSERT (list_empty (&peer->ksnp_conns));
+ if (peer_ni->ksnp_error != 0) {
+ /* peer_ni's last conn closed in error */
+ LASSERT(list_empty(&peer_ni->ksnp_conns));
failed = 1;
- peer->ksnp_error = 0; /* avoid multiple notifications */
+ peer_ni->ksnp_error = 0; /* avoid multiple notifications */
}
- cfs_write_unlock_bh (&ksocknal_data.ksnd_global_lock);
+ write_unlock_bh(&ksocknal_data.ksnd_global_lock);
if (failed)
- ksocknal_peer_failed(peer);
+ ksocknal_peer_failed(peer_ni);
/* The socket is closed on the final put; either here, or in
* ksocknal_{send,recv}msg(). Since we set up the linger2 option
}
void
-ksocknal_queue_zombie_conn (ksock_conn_t *conn)
+ksocknal_queue_zombie_conn(struct ksock_conn *conn)
{
- /* Queue the conn for the reaper to destroy */
+ /* Queue the conn for the reaper to destroy */
+ LASSERT(atomic_read(&conn->ksnc_conn_refcount) == 0);
+ spin_lock_bh(&ksocknal_data.ksnd_reaper_lock);
- LASSERT (cfs_atomic_read(&conn->ksnc_conn_refcount) == 0);
- cfs_spin_lock_bh (&ksocknal_data.ksnd_reaper_lock);
+ list_add_tail(&conn->ksnc_list, &ksocknal_data.ksnd_zombie_conns);
+ wake_up(&ksocknal_data.ksnd_reaper_waitq);
- list_add_tail(&conn->ksnc_list, &ksocknal_data.ksnd_zombie_conns);
- cfs_waitq_signal(&ksocknal_data.ksnd_reaper_waitq);
-
- cfs_spin_unlock_bh (&ksocknal_data.ksnd_reaper_lock);
+ spin_unlock_bh(&ksocknal_data.ksnd_reaper_lock);
}
void
-ksocknal_destroy_conn (ksock_conn_t *conn)
+ksocknal_destroy_conn(struct ksock_conn *conn)
{
- /* Final coup-de-grace of the reaper */
- CDEBUG (D_NET, "connection %p\n", conn);
+ time64_t last_rcv;
+
+ /* Final coup-de-grace of the reaper */
+ CDEBUG (D_NET, "connection %p\n", conn);
- LASSERT (cfs_atomic_read (&conn->ksnc_conn_refcount) == 0);
- LASSERT (cfs_atomic_read (&conn->ksnc_sock_refcount) == 0);
- LASSERT (conn->ksnc_sock == NULL);
- LASSERT (conn->ksnc_route == NULL);
- LASSERT (!conn->ksnc_tx_scheduled);
- LASSERT (!conn->ksnc_rx_scheduled);
- LASSERT (list_empty(&conn->ksnc_tx_queue));
+ LASSERT (atomic_read (&conn->ksnc_conn_refcount) == 0);
+ LASSERT (atomic_read (&conn->ksnc_sock_refcount) == 0);
+ LASSERT (conn->ksnc_sock == NULL);
+ LASSERT (conn->ksnc_route == NULL);
+ LASSERT (!conn->ksnc_tx_scheduled);
+ LASSERT (!conn->ksnc_rx_scheduled);
+ LASSERT(list_empty(&conn->ksnc_tx_queue));
/* complete current receive if any */
switch (conn->ksnc_rx_state) {
case SOCKNAL_RX_LNET_PAYLOAD:
- CERROR("Completing partial receive from %s"
- ", ip %d.%d.%d.%d:%d, with error\n",
- libcfs_id2str(conn->ksnc_peer->ksnp_id),
- HIPQUAD(conn->ksnc_ipaddr), conn->ksnc_port);
- lnet_finalize (conn->ksnc_peer->ksnp_ni,
- conn->ksnc_cookie, -EIO);
- break;
+ last_rcv = conn->ksnc_rx_deadline -
+ lnet_get_lnd_timeout();
+ CERROR("Completing partial receive from %s[%d], "
+ "ip %pI4h:%d, with error, wanted: %d, left: %d, "
+ "last alive is %lld secs ago\n",
+ libcfs_id2str(conn->ksnc_peer->ksnp_id), conn->ksnc_type,
+ &conn->ksnc_ipaddr, conn->ksnc_port,
+ conn->ksnc_rx_nob_wanted, conn->ksnc_rx_nob_left,
+ ktime_get_seconds() - last_rcv);
+ if (conn->ksnc_lnet_msg)
+ conn->ksnc_lnet_msg->msg_health_status =
+ LNET_MSG_STATUS_REMOTE_ERROR;
+ lnet_finalize(conn->ksnc_lnet_msg, -EIO);
+ break;
case SOCKNAL_RX_LNET_HEADER:
if (conn->ksnc_rx_started)
- CERROR("Incomplete receive of lnet header from %s"
- ", ip %d.%d.%d.%d:%d, with error, protocol: %d.x.\n",
+ CERROR("Incomplete receive of lnet header from %s, "
+ "ip %pI4h:%d, with error, protocol: %d.x.\n",
libcfs_id2str(conn->ksnc_peer->ksnp_id),
- HIPQUAD(conn->ksnc_ipaddr), conn->ksnc_port,
+ &conn->ksnc_ipaddr, conn->ksnc_port,
conn->ksnc_proto->pro_version);
break;
case SOCKNAL_RX_KSM_HEADER:
if (conn->ksnc_rx_started)
- CERROR("Incomplete receive of ksock message from %s"
- ", ip %d.%d.%d.%d:%d, with error, protocol: %d.x.\n",
+ CERROR("Incomplete receive of ksock message from %s, "
+ "ip %pI4h:%d, with error, protocol: %d.x.\n",
libcfs_id2str(conn->ksnc_peer->ksnp_id),
- HIPQUAD(conn->ksnc_ipaddr), conn->ksnc_port,
+ &conn->ksnc_ipaddr, conn->ksnc_port,
conn->ksnc_proto->pro_version);
break;
case SOCKNAL_RX_SLOP:
if (conn->ksnc_rx_started)
- CERROR("Incomplete receive of slops from %s"
- ", ip %d.%d.%d.%d:%d, with error\n",
+ CERROR("Incomplete receive of slops from %s, "
+ "ip %pI4h:%d, with error\n",
libcfs_id2str(conn->ksnc_peer->ksnp_id),
- HIPQUAD(conn->ksnc_ipaddr), conn->ksnc_port);
+ &conn->ksnc_ipaddr, conn->ksnc_port);
break;
default:
LBUG ();
}
int
-ksocknal_close_peer_conns_locked (ksock_peer_t *peer, __u32 ipaddr, int why)
+ksocknal_close_peer_conns_locked(struct ksock_peer_ni *peer_ni, __u32 ipaddr, int why)
{
- ksock_conn_t *conn;
- struct list_head *ctmp;
- struct list_head *cnxt;
- int count = 0;
+ struct ksock_conn *conn;
+ struct list_head *ctmp;
+ struct list_head *cnxt;
+ int count = 0;
- list_for_each_safe (ctmp, cnxt, &peer->ksnp_conns) {
- conn = list_entry (ctmp, ksock_conn_t, ksnc_list);
+ list_for_each_safe(ctmp, cnxt, &peer_ni->ksnp_conns) {
+ conn = list_entry(ctmp, struct ksock_conn, ksnc_list);
if (ipaddr == 0 ||
conn->ksnc_ipaddr == ipaddr) {
}
int
-ksocknal_close_conn_and_siblings (ksock_conn_t *conn, int why)
+ksocknal_close_conn_and_siblings(struct ksock_conn *conn, int why)
{
- ksock_peer_t *peer = conn->ksnc_peer;
- __u32 ipaddr = conn->ksnc_ipaddr;
- int count;
+ struct ksock_peer_ni *peer_ni = conn->ksnc_peer;
+ u32 ipaddr = conn->ksnc_ipaddr;
+ int count;
- cfs_write_lock_bh (&ksocknal_data.ksnd_global_lock);
+ write_lock_bh(&ksocknal_data.ksnd_global_lock);
- count = ksocknal_close_peer_conns_locked (peer, ipaddr, why);
+ count = ksocknal_close_peer_conns_locked (peer_ni, ipaddr, why);
- cfs_write_unlock_bh (&ksocknal_data.ksnd_global_lock);
+ write_unlock_bh(&ksocknal_data.ksnd_global_lock);
return (count);
}
int
-ksocknal_close_matching_conns (lnet_process_id_t id, __u32 ipaddr)
+ksocknal_close_matching_conns(struct lnet_process_id id, __u32 ipaddr)
{
- ksock_peer_t *peer;
- struct list_head *ptmp;
- struct list_head *pnxt;
- int lo;
- int hi;
- int i;
- int count = 0;
+ struct ksock_peer_ni *peer_ni;
+ struct list_head *ptmp;
+ struct list_head *pnxt;
+ int lo;
+ int hi;
+ int i;
+ int count = 0;
- cfs_write_lock_bh (&ksocknal_data.ksnd_global_lock);
+ write_lock_bh(&ksocknal_data.ksnd_global_lock);
if (id.nid != LNET_NID_ANY)
lo = hi = (int)(ksocknal_nid2peerlist(id.nid) - ksocknal_data.ksnd_peers);
}
for (i = lo; i <= hi; i++) {
- list_for_each_safe (ptmp, pnxt, &ksocknal_data.ksnd_peers[i]) {
+ list_for_each_safe(ptmp, pnxt, &ksocknal_data.ksnd_peers[i]) {
- peer = list_entry (ptmp, ksock_peer_t, ksnp_list);
+ peer_ni = list_entry(ptmp, struct ksock_peer_ni, 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)))
+ if (!((id.nid == LNET_NID_ANY || id.nid == peer_ni->ksnp_id.nid) &&
+ (id.pid == LNET_PID_ANY || id.pid == peer_ni->ksnp_id.pid)))
continue;
- count += ksocknal_close_peer_conns_locked (peer, ipaddr, 0);
+ count += ksocknal_close_peer_conns_locked (peer_ni, ipaddr, 0);
}
}
- cfs_write_unlock_bh (&ksocknal_data.ksnd_global_lock);
+ write_unlock_bh(&ksocknal_data.ksnd_global_lock);
/* wildcards always succeed */
if (id.nid == LNET_NID_ANY || id.pid == LNET_PID_ANY || ipaddr == 0)
}
void
-ksocknal_notify (lnet_ni_t *ni, lnet_nid_t gw_nid, int alive)
+ksocknal_notify_gw_down(lnet_nid_t gw_nid)
+{
+ /* The router is telling me she's been notified of a change in
+ * gateway state....
+ */
+ struct lnet_process_id id = {
+ .nid = gw_nid,
+ .pid = LNET_PID_ANY,
+ };
+
+ CDEBUG(D_NET, "gw %s down\n", libcfs_nid2str(gw_nid));
+
+ /* If the gateway crashed, close all open connections... */
+ ksocknal_close_matching_conns(id, 0);
+ return;
+
+ /* We can only establish new connections
+ * if we have autroutes, and these connect on demand. */
+}
+
+void
+ksocknal_query(struct lnet_ni *ni, lnet_nid_t nid, time64_t *when)
{
- /* The router is telling me she's been notified of a change in
- * gateway state.... */
- lnet_process_id_t id = {0};
+ int connect = 1;
+ time64_t last_alive = 0;
+ time64_t now = ktime_get_seconds();
+ struct ksock_peer_ni *peer_ni = NULL;
+ rwlock_t *glock = &ksocknal_data.ksnd_global_lock;
+ struct lnet_process_id id = {
+ .nid = nid,
+ .pid = LNET_PID_LUSTRE,
+ };
+
+ read_lock(glock);
+
+ peer_ni = ksocknal_find_peer_locked(ni, id);
+ if (peer_ni != NULL) {
+ struct list_head *tmp;
+ struct ksock_conn *conn;
+ int bufnob;
+
+ list_for_each(tmp, &peer_ni->ksnp_conns) {
+ conn = list_entry(tmp, struct ksock_conn, ksnc_list);
+ bufnob = conn->ksnc_sock->sk->sk_wmem_queued;
+
+ if (bufnob < conn->ksnc_tx_bufnob) {
+ /* something got ACKed */
+ conn->ksnc_tx_deadline = ktime_get_seconds() +
+ lnet_get_lnd_timeout();
+ peer_ni->ksnp_last_alive = now;
+ conn->ksnc_tx_bufnob = bufnob;
+ }
+ }
+
+ last_alive = peer_ni->ksnp_last_alive;
+ if (ksocknal_find_connectable_route_locked(peer_ni) == NULL)
+ connect = 0;
+ }
+
+ read_unlock(glock);
- id.nid = gw_nid;
- id.pid = LNET_PID_ANY;
+ if (last_alive != 0)
+ *when = last_alive;
- CDEBUG (D_NET, "gw %s %s\n", libcfs_nid2str(gw_nid),
- alive ? "up" : "down");
+ CDEBUG(D_NET, "peer_ni %s %p, alive %lld secs ago, connect %d\n",
+ libcfs_nid2str(nid), peer_ni,
+ last_alive ? now - last_alive : -1,
+ connect);
- if (!alive) {
- /* If the gateway crashed, close all open connections... */
- ksocknal_close_matching_conns (id, 0);
+ if (!connect)
return;
- }
- /* ...otherwise do nothing. We can only establish new connections
- * if we have autroutes, and these connect on demand. */
+ ksocknal_add_peer(ni, id, LNET_NIDADDR(nid), lnet_acceptor_port());
+
+ write_lock_bh(glock);
+
+ peer_ni = ksocknal_find_peer_locked(ni, id);
+ if (peer_ni != NULL)
+ ksocknal_launch_all_connections_locked(peer_ni);
+
+ write_unlock_bh(glock);
}
-void
-ksocknal_push_peer (ksock_peer_t *peer)
+static void
+ksocknal_push_peer(struct ksock_peer_ni *peer_ni)
{
- int index;
- int i;
- struct list_head *tmp;
- ksock_conn_t *conn;
+ int index;
+ int i;
+ struct list_head *tmp;
+ struct ksock_conn *conn;
for (index = 0; ; index++) {
- cfs_read_lock (&ksocknal_data.ksnd_global_lock);
+ read_lock(&ksocknal_data.ksnd_global_lock);
i = 0;
conn = NULL;
- list_for_each (tmp, &peer->ksnp_conns) {
+ list_for_each(tmp, &peer_ni->ksnp_conns) {
if (i++ == index) {
- conn = list_entry (tmp, ksock_conn_t, ksnc_list);
+ conn = list_entry(tmp, struct ksock_conn,
+ ksnc_list);
ksocknal_conn_addref(conn);
break;
}
}
- cfs_read_unlock (&ksocknal_data.ksnd_global_lock);
+ read_unlock(&ksocknal_data.ksnd_global_lock);
if (conn == NULL)
break;
}
}
-int
-ksocknal_push (lnet_ni_t *ni, lnet_process_id_t id)
+static int
+ksocknal_push(struct lnet_ni *ni, struct lnet_process_id 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++) {
- cfs_read_lock (&ksocknal_data.ksnd_global_lock);
-
- index = 0;
- peer = NULL;
-
- list_for_each (tmp, &ksocknal_data.ksnd_peers[i]) {
- peer = list_entry(tmp, ksock_peer_t,
- 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))) {
- peer = NULL;
- continue;
- }
-
- if (index++ == j) {
- ksocknal_peer_addref(peer);
- break;
- }
- }
-
- cfs_read_unlock (&ksocknal_data.ksnd_global_lock);
-
- if (peer != NULL) {
- rc = 0;
- ksocknal_push_peer (peer);
- ksocknal_peer_decref(peer);
- }
- }
-
- }
-
- return (rc);
+ struct list_head *start;
+ struct list_head *end;
+ struct list_head *tmp;
+ int rc = -ENOENT;
+ unsigned int hsize = ksocknal_data.ksnd_peer_hash_size;
+
+ 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);
+ }
+
+ for (tmp = start; tmp <= end; tmp++) {
+ int peer_off; /* searching offset in peer_ni hash table */
+
+ for (peer_off = 0; ; peer_off++) {
+ struct ksock_peer_ni *peer_ni;
+ int i = 0;
+
+ read_lock(&ksocknal_data.ksnd_global_lock);
+ list_for_each_entry(peer_ni, tmp, ksnp_list) {
+ if (!((id.nid == LNET_NID_ANY ||
+ id.nid == peer_ni->ksnp_id.nid) &&
+ (id.pid == LNET_PID_ANY ||
+ id.pid == peer_ni->ksnp_id.pid)))
+ continue;
+
+ if (i++ == peer_off) {
+ ksocknal_peer_addref(peer_ni);
+ break;
+ }
+ }
+ read_unlock(&ksocknal_data.ksnd_global_lock);
+
+ if (i <= peer_off) /* no match */
+ break;
+
+ rc = 0;
+ ksocknal_push_peer(peer_ni);
+ ksocknal_peer_decref(peer_ni);
+ }
+ }
+ return rc;
}
-int
-ksocknal_add_interface(lnet_ni_t *ni, __u32 ipaddress, __u32 netmask)
+static int
+ksocknal_add_interface(struct lnet_ni *ni, __u32 ipaddress, __u32 netmask)
{
- ksock_net_t *net = ni->ni_data;
- ksock_interface_t *iface;
- int rc;
- int i;
- int j;
- struct list_head *ptmp;
- ksock_peer_t *peer;
- struct list_head *rtmp;
- ksock_route_t *route;
-
- if (ipaddress == 0 ||
- netmask == 0)
- return (-EINVAL);
-
- cfs_write_lock_bh (&ksocknal_data.ksnd_global_lock);
-
- iface = ksocknal_ip2iface(ni, ipaddress);
- if (iface != NULL) {
- /* silently ignore dups */
- rc = 0;
- } else if (net->ksnn_ninterfaces == LNET_MAX_INTERFACES) {
- rc = -ENOSPC;
- } else {
- iface = &net->ksnn_interfaces[net->ksnn_ninterfaces++];
-
- iface->ksni_ipaddr = ipaddress;
- iface->ksni_netmask = netmask;
- iface->ksni_nroutes = 0;
- iface->ksni_npeers = 0;
-
- for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
- list_for_each(ptmp, &ksocknal_data.ksnd_peers[i]) {
- peer = list_entry(ptmp, ksock_peer_t, ksnp_list);
-
- for (j = 0; j < peer->ksnp_n_passive_ips; j++)
- if (peer->ksnp_passive_ips[j] == ipaddress)
- iface->ksni_npeers++;
-
- list_for_each(rtmp, &peer->ksnp_routes) {
- route = list_entry(rtmp, ksock_route_t, ksnr_list);
-
- if (route->ksnr_myipaddr == ipaddress)
- iface->ksni_nroutes++;
- }
- }
- }
-
- rc = 0;
- /* NB only new connections will pay attention to the new interface! */
- }
-
- cfs_write_unlock_bh (&ksocknal_data.ksnd_global_lock);
-
- return (rc);
+ struct ksock_net *net = ni->ni_data;
+ struct ksock_interface *iface;
+ int rc;
+ int i;
+ int j;
+ struct list_head *ptmp;
+ struct ksock_peer_ni *peer_ni;
+ struct list_head *rtmp;
+ struct ksock_route *route;
+
+ if (ipaddress == 0 ||
+ netmask == 0)
+ return -EINVAL;
+
+ write_lock_bh(&ksocknal_data.ksnd_global_lock);
+
+ iface = ksocknal_ip2iface(ni, ipaddress);
+ if (iface != NULL) {
+ /* silently ignore dups */
+ rc = 0;
+ } else if (net->ksnn_ninterfaces == LNET_INTERFACES_NUM) {
+ rc = -ENOSPC;
+ } else {
+ iface = &net->ksnn_interfaces[net->ksnn_ninterfaces++];
+
+ iface->ksni_ipaddr = ipaddress;
+ iface->ksni_netmask = netmask;
+ iface->ksni_nroutes = 0;
+ iface->ksni_npeers = 0;
+
+ for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
+ list_for_each(ptmp, &ksocknal_data.ksnd_peers[i]) {
+ peer_ni = list_entry(ptmp, struct ksock_peer_ni,
+ ksnp_list);
+
+ for (j = 0; j < peer_ni->ksnp_n_passive_ips; j++)
+ if (peer_ni->ksnp_passive_ips[j] == ipaddress)
+ iface->ksni_npeers++;
+
+ list_for_each(rtmp, &peer_ni->ksnp_routes) {
+ route = list_entry(rtmp,
+ struct ksock_route,
+ ksnr_list);
+
+ if (route->ksnr_myipaddr == ipaddress)
+ iface->ksni_nroutes++;
+ }
+ }
+ }
+
+ rc = 0;
+ /* NB only new connections will pay attention to the new interface! */
+ }
+
+ write_unlock_bh(&ksocknal_data.ksnd_global_lock);
+
+ return rc;
}
-void
-ksocknal_peer_del_interface_locked(ksock_peer_t *peer, __u32 ipaddr)
+static void
+ksocknal_peer_del_interface_locked(struct ksock_peer_ni *peer_ni, __u32 ipaddr)
{
- struct list_head *tmp;
- struct list_head *nxt;
- ksock_route_t *route;
- ksock_conn_t *conn;
- int i;
- int j;
-
- for (i = 0; i < peer->ksnp_n_passive_ips; i++)
- if (peer->ksnp_passive_ips[i] == ipaddr) {
- for (j = i+1; j < peer->ksnp_n_passive_ips; j++)
- peer->ksnp_passive_ips[j-1] =
- peer->ksnp_passive_ips[j];
- peer->ksnp_n_passive_ips--;
+ struct list_head *tmp;
+ struct list_head *nxt;
+ struct ksock_route *route;
+ struct ksock_conn *conn;
+ int i;
+ int j;
+
+ for (i = 0; i < peer_ni->ksnp_n_passive_ips; i++)
+ if (peer_ni->ksnp_passive_ips[i] == ipaddr) {
+ for (j = i+1; j < peer_ni->ksnp_n_passive_ips; j++)
+ peer_ni->ksnp_passive_ips[j-1] =
+ peer_ni->ksnp_passive_ips[j];
+ peer_ni->ksnp_n_passive_ips--;
break;
}
- list_for_each_safe(tmp, nxt, &peer->ksnp_routes) {
- route = list_entry (tmp, ksock_route_t, ksnr_list);
+ list_for_each_safe(tmp, nxt, &peer_ni->ksnp_routes) {
+ route = list_entry(tmp, struct ksock_route, ksnr_list);
if (route->ksnr_myipaddr != ipaddr)
continue;
}
}
- list_for_each_safe(tmp, nxt, &peer->ksnp_conns) {
- conn = list_entry(tmp, ksock_conn_t, ksnc_list);
+ list_for_each_safe(tmp, nxt, &peer_ni->ksnp_conns) {
+ conn = list_entry(tmp, struct ksock_conn, ksnc_list);
if (conn->ksnc_myipaddr == ipaddr)
ksocknal_close_conn_locked (conn, 0);
}
}
-int
-ksocknal_del_interface(lnet_ni_t *ni, __u32 ipaddress)
+static int
+ksocknal_del_interface(struct lnet_ni *ni, __u32 ipaddress)
{
- ksock_net_t *net = ni->ni_data;
- int rc = -ENOENT;
- struct list_head *tmp;
- struct list_head *nxt;
- ksock_peer_t *peer;
- __u32 this_ip;
- int i;
- int j;
+ struct ksock_net *net = ni->ni_data;
+ int rc = -ENOENT;
+ struct list_head *tmp;
+ struct list_head *nxt;
+ struct ksock_peer_ni *peer_ni;
+ u32 this_ip;
+ int i;
+ int j;
- cfs_write_lock_bh (&ksocknal_data.ksnd_global_lock);
+ write_lock_bh(&ksocknal_data.ksnd_global_lock);
for (i = 0; i < net->ksnn_ninterfaces; i++) {
this_ip = net->ksnn_interfaces[i].ksni_ipaddr;
net->ksnn_ninterfaces--;
for (j = 0; j < ksocknal_data.ksnd_peer_hash_size; j++) {
- list_for_each_safe(tmp, nxt, &ksocknal_data.ksnd_peers[j]) {
- peer = list_entry(tmp, ksock_peer_t, ksnp_list);
+ list_for_each_safe(tmp, nxt,
+ &ksocknal_data.ksnd_peers[j]) {
+ peer_ni = list_entry(tmp, struct ksock_peer_ni,
+ ksnp_list);
- if (peer->ksnp_ni != ni)
+ if (peer_ni->ksnp_ni != ni)
continue;
- ksocknal_peer_del_interface_locked(peer, this_ip);
+ ksocknal_peer_del_interface_locked(peer_ni, this_ip);
}
}
}
- cfs_write_unlock_bh (&ksocknal_data.ksnd_global_lock);
+ write_unlock_bh(&ksocknal_data.ksnd_global_lock);
return (rc);
}
int
-ksocknal_ctl(lnet_ni_t *ni, unsigned int cmd, void *arg)
+ksocknal_ctl(struct lnet_ni *ni, unsigned int cmd, void *arg)
{
- lnet_process_id_t id = {0};
+ struct lnet_process_id id = {0};
struct libcfs_ioctl_data *data = arg;
int rc;
switch(cmd) {
case IOC_LIBCFS_GET_INTERFACE: {
- ksock_net_t *net = ni->ni_data;
- ksock_interface_t *iface;
+ struct ksock_net *net = ni->ni_data;
+ struct ksock_interface *iface;
- cfs_read_lock (&ksocknal_data.ksnd_global_lock);
+ read_lock(&ksocknal_data.ksnd_global_lock);
if (data->ioc_count >= (__u32)net->ksnn_ninterfaces) {
rc = -ENOENT;
data->ioc_u32[3] = iface->ksni_nroutes;
}
- cfs_read_unlock (&ksocknal_data.ksnd_global_lock);
+ read_unlock(&ksocknal_data.ksnd_global_lock);
return rc;
}
case IOC_LIBCFS_ADD_PEER:
id.nid = data->ioc_nid;
- id.pid = LUSTRE_SRV_LNET_PID;
+ id.pid = LNET_PID_LUSTRE;
return ksocknal_add_peer (ni, id,
data->ioc_u32[0], /* IP */
data->ioc_u32[1]); /* port */
int txmem;
int rxmem;
int nagle;
- ksock_conn_t *conn = ksocknal_get_conn_by_idx (ni, data->ioc_count);
+ struct ksock_conn *conn = ksocknal_get_conn_by_idx(ni, data->ioc_count);
if (conn == NULL)
return -ENOENT;
data->ioc_u32[1] = conn->ksnc_port;
data->ioc_u32[2] = conn->ksnc_myipaddr;
data->ioc_u32[3] = conn->ksnc_type;
- data->ioc_u32[4] = (__u32)(conn->ksnc_scheduler -
- ksocknal_data.ksnd_schedulers);
+ data->ioc_u32[4] = conn->ksnc_scheduler->kss_cpt;
data->ioc_u32[5] = rxmem;
data->ioc_u32[6] = conn->ksnc_peer->ksnp_id.pid;
ksocknal_conn_decref(conn);
/* not reached */
}
-void
+static void
ksocknal_free_buffers (void)
{
- LASSERT (cfs_atomic_read(&ksocknal_data.ksnd_nactive_txs) == 0);
+ LASSERT (atomic_read(&ksocknal_data.ksnd_nactive_txs) == 0);
- if (ksocknal_data.ksnd_schedulers != NULL)
- LIBCFS_FREE (ksocknal_data.ksnd_schedulers,
- sizeof (ksock_sched_t) * ksocknal_data.ksnd_nschedulers);
+ if (ksocknal_data.ksnd_schedulers != NULL)
+ cfs_percpt_free(ksocknal_data.ksnd_schedulers);
LIBCFS_FREE (ksocknal_data.ksnd_peers,
- sizeof (struct list_head) *
+ sizeof(struct list_head) *
ksocknal_data.ksnd_peer_hash_size);
- cfs_spin_lock(&ksocknal_data.ksnd_tx_lock);
+ spin_lock(&ksocknal_data.ksnd_tx_lock);
- if (!list_empty(&ksocknal_data.ksnd_idle_noop_txs)) {
- struct list_head zlist;
- ksock_tx_t *tx;
+ if (!list_empty(&ksocknal_data.ksnd_idle_noop_txs)) {
+ struct list_head zlist;
+ struct ksock_tx *tx;
- list_add(&zlist, &ksocknal_data.ksnd_idle_noop_txs);
- list_del_init(&ksocknal_data.ksnd_idle_noop_txs);
- cfs_spin_unlock(&ksocknal_data.ksnd_tx_lock);
+ list_add(&zlist, &ksocknal_data.ksnd_idle_noop_txs);
+ list_del_init(&ksocknal_data.ksnd_idle_noop_txs);
+ spin_unlock(&ksocknal_data.ksnd_tx_lock);
- while(!list_empty(&zlist)) {
- tx = list_entry(zlist.next, ksock_tx_t, tx_list);
- list_del(&tx->tx_list);
- LIBCFS_FREE(tx, tx->tx_desc_size);
- }
- } else {
- cfs_spin_unlock(&ksocknal_data.ksnd_tx_lock);
- }
+ while (!list_empty(&zlist)) {
+ tx = list_entry(zlist.next, struct ksock_tx, tx_list);
+ list_del(&tx->tx_list);
+ LIBCFS_FREE(tx, tx->tx_desc_size);
+ }
+ } else {
+ spin_unlock(&ksocknal_data.ksnd_tx_lock);
+ }
}
-void
-ksocknal_base_shutdown (void)
+static void
+ksocknal_base_shutdown(void)
{
- ksock_sched_t *sched;
- int i;
-
- CDEBUG(D_MALLOC, "before NAL cleanup: kmem %d\n",
- cfs_atomic_read (&libcfs_kmemory));
- LASSERT (ksocknal_data.ksnd_nnets == 0);
-
- switch (ksocknal_data.ksnd_init) {
- default:
- LASSERT (0);
-
- case SOCKNAL_INIT_ALL:
- case SOCKNAL_INIT_DATA:
- LASSERT (ksocknal_data.ksnd_peers != NULL);
- for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
- LASSERT (list_empty (&ksocknal_data.ksnd_peers[i]));
- }
- LASSERT (list_empty (&ksocknal_data.ksnd_enomem_conns));
- LASSERT (list_empty (&ksocknal_data.ksnd_zombie_conns));
- LASSERT (list_empty (&ksocknal_data.ksnd_connd_connreqs));
- LASSERT (list_empty (&ksocknal_data.ksnd_connd_routes));
-
- if (ksocknal_data.ksnd_schedulers != NULL)
- for (i = 0; i < ksocknal_data.ksnd_nschedulers; i++) {
- ksock_sched_t *kss =
- &ksocknal_data.ksnd_schedulers[i];
-
- LASSERT (list_empty (&kss->kss_tx_conns));
- LASSERT (list_empty (&kss->kss_rx_conns));
- LASSERT (list_empty (&kss->kss_zombie_noop_txs));
- LASSERT (kss->kss_nconns == 0);
- }
-
- /* flag threads to terminate; wake and wait for them to die */
- ksocknal_data.ksnd_shuttingdown = 1;
- cfs_waitq_broadcast (&ksocknal_data.ksnd_connd_waitq);
- cfs_waitq_broadcast (&ksocknal_data.ksnd_reaper_waitq);
-
- if (ksocknal_data.ksnd_schedulers != NULL)
- for (i = 0; i < ksocknal_data.ksnd_nschedulers; i++) {
- sched = &ksocknal_data.ksnd_schedulers[i];
- cfs_waitq_broadcast(&sched->kss_waitq);
- }
-
- i = 4;
- cfs_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);
- cfs_read_unlock (&ksocknal_data.ksnd_global_lock);
- cfs_pause(cfs_time_seconds(1));
- cfs_read_lock (&ksocknal_data.ksnd_global_lock);
- }
- cfs_read_unlock (&ksocknal_data.ksnd_global_lock);
+ struct ksock_sched *sched;
+ int i;
+
+ CDEBUG(D_MALLOC, "before NAL cleanup: kmem %d\n",
+ atomic_read (&libcfs_kmemory));
+ LASSERT (ksocknal_data.ksnd_nnets == 0);
+
+ switch (ksocknal_data.ksnd_init) {
+ default:
+ LASSERT(0);
+ /* fallthrough */
+
+ case SOCKNAL_INIT_ALL:
+ case SOCKNAL_INIT_DATA:
+ LASSERT(ksocknal_data.ksnd_peers != NULL);
+ for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++)
+ LASSERT(list_empty(&ksocknal_data.ksnd_peers[i]));
+
+ LASSERT(list_empty(&ksocknal_data.ksnd_nets));
+ LASSERT(list_empty(&ksocknal_data.ksnd_enomem_conns));
+ LASSERT(list_empty(&ksocknal_data.ksnd_zombie_conns));
+ LASSERT(list_empty(&ksocknal_data.ksnd_connd_connreqs));
+ LASSERT(list_empty(&ksocknal_data.ksnd_connd_routes));
+
+ if (ksocknal_data.ksnd_schedulers != NULL) {
+ cfs_percpt_for_each(sched, i,
+ ksocknal_data.ksnd_schedulers) {
+
+ LASSERT(list_empty(&sched->kss_tx_conns));
+ LASSERT(list_empty(&sched->kss_rx_conns));
+ LASSERT(list_empty(&sched->kss_zombie_noop_txs));
+ LASSERT(sched->kss_nconns == 0);
+ }
+ }
+
+ /* flag threads to terminate; wake and wait for them to die */
+ ksocknal_data.ksnd_shuttingdown = 1;
+ wake_up_all(&ksocknal_data.ksnd_connd_waitq);
+ wake_up_all(&ksocknal_data.ksnd_reaper_waitq);
+
+ if (ksocknal_data.ksnd_schedulers != NULL) {
+ cfs_percpt_for_each(sched, i,
+ ksocknal_data.ksnd_schedulers)
+ wake_up_all(&sched->kss_waitq);
+ }
+
+ i = 4;
+ read_lock(&ksocknal_data.ksnd_global_lock);
+ 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);
+ 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();
break;
}
- CDEBUG(D_MALLOC, "after NAL cleanup: kmem %d\n",
- cfs_atomic_read (&libcfs_kmemory));
+ CDEBUG(D_MALLOC, "after NAL cleanup: kmem %d\n",
+ atomic_read (&libcfs_kmemory));
- PORTAL_MODULE_UNUSE;
+ module_put(THIS_MODULE);
}
-__u64
-ksocknal_new_incarnation (void)
+static int
+ksocknal_base_startup(void)
{
- struct timeval tv;
-
- /* The incarnation number is the time this module loaded and it
- * identifies this particular instance of the socknal. Hopefully
- * we won't be able to reboot more frequently than 1MHz for the
- * forseeable future :) */
-
- cfs_do_gettimeofday(&tv);
-
- return (((__u64)tv.tv_sec) * 1000000) + tv.tv_usec;
-}
-
-int
-ksocknal_base_startup (void)
-{
- int rc;
- int i;
+ struct ksock_sched *sched;
+ int rc;
+ int i;
LASSERT (ksocknal_data.ksnd_init == SOCKNAL_INIT_NOTHING);
LASSERT (ksocknal_data.ksnd_nnets == 0);
memset (&ksocknal_data, 0, sizeof (ksocknal_data)); /* zero pointers */
ksocknal_data.ksnd_peer_hash_size = SOCKNAL_PEER_HASH_SIZE;
- LIBCFS_ALLOC (ksocknal_data.ksnd_peers,
- sizeof (struct list_head) * ksocknal_data.ksnd_peer_hash_size);
+ LIBCFS_ALLOC(ksocknal_data.ksnd_peers,
+ sizeof(struct list_head) *
+ ksocknal_data.ksnd_peer_hash_size);
if (ksocknal_data.ksnd_peers == NULL)
return -ENOMEM;
for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++)
- CFS_INIT_LIST_HEAD(&ksocknal_data.ksnd_peers[i]);
-
- cfs_rwlock_init(&ksocknal_data.ksnd_global_lock);
-
- cfs_spin_lock_init (&ksocknal_data.ksnd_reaper_lock);
- CFS_INIT_LIST_HEAD (&ksocknal_data.ksnd_enomem_conns);
- CFS_INIT_LIST_HEAD (&ksocknal_data.ksnd_zombie_conns);
- CFS_INIT_LIST_HEAD (&ksocknal_data.ksnd_deathrow_conns);
- cfs_waitq_init(&ksocknal_data.ksnd_reaper_waitq);
-
- cfs_spin_lock_init (&ksocknal_data.ksnd_connd_lock);
- CFS_INIT_LIST_HEAD (&ksocknal_data.ksnd_connd_connreqs);
- CFS_INIT_LIST_HEAD (&ksocknal_data.ksnd_connd_routes);
- cfs_waitq_init(&ksocknal_data.ksnd_connd_waitq);
-
- cfs_spin_lock_init (&ksocknal_data.ksnd_tx_lock);
- CFS_INIT_LIST_HEAD (&ksocknal_data.ksnd_idle_noop_txs);
-
- /* NB memset above zeros whole of ksocknal_data, including
- * ksocknal_data.ksnd_irqinfo[all].ksni_valid */
-
- /* flag lists/ptrs/locks initialised */
- ksocknal_data.ksnd_init = SOCKNAL_INIT_DATA;
- PORTAL_MODULE_USE;
-
- ksocknal_data.ksnd_nschedulers = ksocknal_nsched();
- LIBCFS_ALLOC(ksocknal_data.ksnd_schedulers,
- sizeof(ksock_sched_t) * ksocknal_data.ksnd_nschedulers);
- if (ksocknal_data.ksnd_schedulers == NULL)
- goto failed;
-
- for (i = 0; i < ksocknal_data.ksnd_nschedulers; i++) {
- ksock_sched_t *kss = &ksocknal_data.ksnd_schedulers[i];
-
- cfs_spin_lock_init (&kss->kss_lock);
- CFS_INIT_LIST_HEAD (&kss->kss_rx_conns);
- CFS_INIT_LIST_HEAD (&kss->kss_tx_conns);
- CFS_INIT_LIST_HEAD (&kss->kss_zombie_noop_txs);
- cfs_waitq_init (&kss->kss_waitq);
- }
-
- for (i = 0; i < ksocknal_data.ksnd_nschedulers; i++) {
- rc = ksocknal_thread_start (ksocknal_scheduler,
- &ksocknal_data.ksnd_schedulers[i]);
- if (rc != 0) {
- CERROR("Can't spawn socknal scheduler[%d]: %d\n",
- i, rc);
- goto failed;
- }
- }
-
+ INIT_LIST_HEAD(&ksocknal_data.ksnd_peers[i]);
+
+ rwlock_init(&ksocknal_data.ksnd_global_lock);
+ INIT_LIST_HEAD(&ksocknal_data.ksnd_nets);
+
+ spin_lock_init(&ksocknal_data.ksnd_reaper_lock);
+ INIT_LIST_HEAD(&ksocknal_data.ksnd_enomem_conns);
+ INIT_LIST_HEAD(&ksocknal_data.ksnd_zombie_conns);
+ INIT_LIST_HEAD(&ksocknal_data.ksnd_deathrow_conns);
+ init_waitqueue_head(&ksocknal_data.ksnd_reaper_waitq);
+
+ spin_lock_init(&ksocknal_data.ksnd_connd_lock);
+ INIT_LIST_HEAD(&ksocknal_data.ksnd_connd_connreqs);
+ INIT_LIST_HEAD(&ksocknal_data.ksnd_connd_routes);
+ init_waitqueue_head(&ksocknal_data.ksnd_connd_waitq);
+
+ spin_lock_init(&ksocknal_data.ksnd_tx_lock);
+ INIT_LIST_HEAD(&ksocknal_data.ksnd_idle_noop_txs);
+
+ /* NB memset above zeros whole of ksocknal_data */
+
+ /* flag lists/ptrs/locks initialised */
+ ksocknal_data.ksnd_init = SOCKNAL_INIT_DATA;
+ try_module_get(THIS_MODULE);
+
+ /* Create a scheduler block per available CPT */
+ ksocknal_data.ksnd_schedulers = cfs_percpt_alloc(lnet_cpt_table(),
+ sizeof(*sched));
+ if (ksocknal_data.ksnd_schedulers == NULL)
+ goto failed;
+
+ cfs_percpt_for_each(sched, i, ksocknal_data.ksnd_schedulers) {
+ int nthrs;
+
+ /*
+ * make sure not to allocate more threads than there are
+ * cores/CPUs in teh CPT
+ */
+ nthrs = cfs_cpt_weight(lnet_cpt_table(), i);
+ if (*ksocknal_tunables.ksnd_nscheds > 0) {
+ nthrs = min(nthrs, *ksocknal_tunables.ksnd_nscheds);
+ } else {
+ /*
+ * max to half of CPUs, assume another half should be
+ * reserved for upper layer modules
+ */
+ nthrs = min(max(SOCKNAL_NSCHEDS, nthrs >> 1), nthrs);
+ }
+
+ sched->kss_nthreads_max = nthrs;
+ sched->kss_cpt = i;
+
+ spin_lock_init(&sched->kss_lock);
+ INIT_LIST_HEAD(&sched->kss_rx_conns);
+ INIT_LIST_HEAD(&sched->kss_tx_conns);
+ INIT_LIST_HEAD(&sched->kss_zombie_noop_txs);
+ init_waitqueue_head(&sched->kss_waitq);
+ }
+
+ ksocknal_data.ksnd_connd_starting = 0;
+ ksocknal_data.ksnd_connd_failed_stamp = 0;
+ ksocknal_data.ksnd_connd_starting_stamp = ktime_get_real_seconds();
/* must have at least 2 connds to remain responsive to accepts while
* connecting */
- if (*ksocknal_tunables.ksnd_nconnds < 2)
- *ksocknal_tunables.ksnd_nconnds = 2;
+ if (*ksocknal_tunables.ksnd_nconnds < SOCKNAL_CONND_RESV + 1)
+ *ksocknal_tunables.ksnd_nconnds = SOCKNAL_CONND_RESV + 1;
+
+ if (*ksocknal_tunables.ksnd_nconnds_max <
+ *ksocknal_tunables.ksnd_nconnds) {
+ ksocknal_tunables.ksnd_nconnds_max =
+ ksocknal_tunables.ksnd_nconnds;
+ }
for (i = 0; i < *ksocknal_tunables.ksnd_nconnds; i++) {
- rc = ksocknal_thread_start (ksocknal_connd,
- (void *)((ulong_ptr_t)i));
- if (rc != 0) {
+ char name[16];
+ spin_lock_bh(&ksocknal_data.ksnd_connd_lock);
+ ksocknal_data.ksnd_connd_starting++;
+ spin_unlock_bh(&ksocknal_data.ksnd_connd_lock);
+
+
+ snprintf(name, sizeof(name), "socknal_cd%02d", i);
+ rc = ksocknal_thread_start(ksocknal_connd,
+ (void *)((uintptr_t)i), name);
+ if (rc != 0) {
+ spin_lock_bh(&ksocknal_data.ksnd_connd_lock);
+ ksocknal_data.ksnd_connd_starting--;
+ spin_unlock_bh(&ksocknal_data.ksnd_connd_lock);
CERROR("Can't spawn socknal connd: %d\n", rc);
goto failed;
}
}
- rc = ksocknal_thread_start (ksocknal_reaper, NULL);
+ rc = ksocknal_thread_start(ksocknal_reaper, NULL, "socknal_reaper");
if (rc != 0) {
CERROR ("Can't spawn socknal reaper: %d\n", rc);
goto failed;
return -ENETDOWN;
}
-void
-ksocknal_debug_peerhash (lnet_ni_t *ni)
+static void
+ksocknal_debug_peerhash(struct lnet_ni *ni)
{
- ksock_peer_t *peer = NULL;
- struct list_head *tmp;
- int i;
-
- cfs_read_lock (&ksocknal_data.ksnd_global_lock);
-
- for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
- list_for_each (tmp, &ksocknal_data.ksnd_peers[i]) {
- peer = list_entry (tmp, ksock_peer_t, ksnp_list);
-
- if (peer->ksnp_ni == ni) break;
-
- peer = NULL;
- }
- }
-
- if (peer != NULL) {
- ksock_route_t *route;
- ksock_conn_t *conn;
-
- CWARN ("Active peer on shutdown: %s, ref %d, scnt %d, "
- "closing %d, accepting %d, err %d, zcookie "LPU64", "
- "txq %d, zc_req %d\n", libcfs_id2str(peer->ksnp_id),
- cfs_atomic_read(&peer->ksnp_refcount),
- peer->ksnp_sharecount, peer->ksnp_closing,
- peer->ksnp_accepting, peer->ksnp_error,
- peer->ksnp_zc_next_cookie,
- !list_empty(&peer->ksnp_tx_queue),
- !list_empty(&peer->ksnp_zc_req_list));
-
- list_for_each (tmp, &peer->ksnp_routes) {
- route = list_entry(tmp, ksock_route_t, ksnr_list);
- CWARN ("Route: ref %d, schd %d, conn %d, cnted %d, "
- "del %d\n", cfs_atomic_read(&route->ksnr_refcount),
- route->ksnr_scheduled, route->ksnr_connecting,
- route->ksnr_connected, route->ksnr_deleted);
- }
-
- list_for_each (tmp, &peer->ksnp_conns) {
- conn = list_entry(tmp, ksock_conn_t, ksnc_list);
- CWARN ("Conn: ref %d, sref %d, t %d, c %d\n",
- cfs_atomic_read(&conn->ksnc_conn_refcount),
- cfs_atomic_read(&conn->ksnc_sock_refcount),
- conn->ksnc_type, conn->ksnc_closing);
- }
- }
-
- cfs_read_unlock (&ksocknal_data.ksnd_global_lock);
- return;
+ struct ksock_peer_ni *peer_ni = NULL;
+ struct list_head *tmp;
+ int i;
+
+ read_lock(&ksocknal_data.ksnd_global_lock);
+
+ for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
+ list_for_each(tmp, &ksocknal_data.ksnd_peers[i]) {
+ peer_ni = list_entry(tmp, struct ksock_peer_ni, ksnp_list);
+
+ if (peer_ni->ksnp_ni == ni)
+ break;
+
+ peer_ni = NULL;
+ }
+ }
+
+ if (peer_ni != NULL) {
+ struct ksock_route *route;
+ struct ksock_conn *conn;
+
+ CWARN("Active peer_ni on shutdown: %s, ref %d, "
+ "closing %d, accepting %d, err %d, zcookie %llu, "
+ "txq %d, zc_req %d\n", libcfs_id2str(peer_ni->ksnp_id),
+ atomic_read(&peer_ni->ksnp_refcount),
+ peer_ni->ksnp_closing,
+ peer_ni->ksnp_accepting, peer_ni->ksnp_error,
+ peer_ni->ksnp_zc_next_cookie,
+ !list_empty(&peer_ni->ksnp_tx_queue),
+ !list_empty(&peer_ni->ksnp_zc_req_list));
+
+ list_for_each(tmp, &peer_ni->ksnp_routes) {
+ route = list_entry(tmp, struct ksock_route, ksnr_list);
+ CWARN("Route: ref %d, schd %d, conn %d, cnted %d, "
+ "del %d\n", atomic_read(&route->ksnr_refcount),
+ route->ksnr_scheduled, route->ksnr_connecting,
+ route->ksnr_connected, route->ksnr_deleted);
+ }
+
+ list_for_each(tmp, &peer_ni->ksnp_conns) {
+ conn = list_entry(tmp, struct ksock_conn, ksnc_list);
+ CWARN("Conn: ref %d, sref %d, t %d, c %d\n",
+ atomic_read(&conn->ksnc_conn_refcount),
+ atomic_read(&conn->ksnc_sock_refcount),
+ conn->ksnc_type, conn->ksnc_closing);
+ }
+ }
+
+ read_unlock(&ksocknal_data.ksnd_global_lock);
}
void
-ksocknal_shutdown (lnet_ni_t *ni)
+ksocknal_shutdown(struct lnet_ni *ni)
{
- ksock_net_t *net = ni->ni_data;
- int i;
- lnet_process_id_t anyid = {0};
-
- anyid.nid = LNET_NID_ANY;
- anyid.pid = LNET_PID_ANY;
+ struct ksock_net *net = ni->ni_data;
+ struct lnet_process_id anyid = {
+ .nid = LNET_NID_ANY,
+ .pid = LNET_PID_ANY,
+ };
+ int i;
LASSERT(ksocknal_data.ksnd_init == SOCKNAL_INIT_ALL);
LASSERT(ksocknal_data.ksnd_nnets > 0);
- cfs_spin_lock_bh (&net->ksnn_lock);
- net->ksnn_shutdown = 1; /* prevent new peers */
- cfs_spin_unlock_bh (&net->ksnn_lock);
+ spin_lock_bh(&net->ksnn_lock);
+ net->ksnn_shutdown = 1; /* prevent new peers */
+ spin_unlock_bh(&net->ksnn_lock);
- /* Delete all peers */
- ksocknal_del_peer(ni, anyid, 0);
+ /* Delete all peers */
+ ksocknal_del_peer(ni, anyid, 0);
- /* Wait for all peer state to clean up */
- i = 2;
- cfs_spin_lock_bh (&net->ksnn_lock);
- while (net->ksnn_npeers != 0) {
- cfs_spin_unlock_bh (&net->ksnn_lock);
+ /* Wait for all peer_ni state to clean up */
+ i = 2;
+ spin_lock_bh(&net->ksnn_lock);
+ while (net->ksnn_npeers != 0) {
+ spin_unlock_bh(&net->ksnn_lock);
- i++;
- 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));
+ i++;
+ CDEBUG(((i & (-i)) == i) ? D_WARNING : D_NET, /* power of 2? */
+ "waiting for %d peers to disconnect\n",
+ net->ksnn_npeers);
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(cfs_time_seconds(1));
- ksocknal_debug_peerhash(ni);
+ ksocknal_debug_peerhash(ni);
- cfs_spin_lock_bh (&net->ksnn_lock);
- }
- cfs_spin_unlock_bh (&net->ksnn_lock);
+ spin_lock_bh(&net->ksnn_lock);
+ }
+ spin_unlock_bh(&net->ksnn_lock);
for (i = 0; i < net->ksnn_ninterfaces; i++) {
LASSERT (net->ksnn_interfaces[i].ksni_npeers == 0);
LASSERT (net->ksnn_interfaces[i].ksni_nroutes == 0);
}
- LIBCFS_FREE(net, sizeof(*net));
+ list_del(&net->ksnn_list);
+ LIBCFS_FREE(net, sizeof(*net));
ksocknal_data.ksnd_nnets--;
if (ksocknal_data.ksnd_nnets == 0)
ksocknal_base_shutdown();
}
-int
-ksocknal_enumerate_interfaces(ksock_net_t *net)
+static int
+ksocknal_search_new_ipif(struct ksock_net *net)
{
- char **names;
- int i;
- int j;
- int rc;
- int n;
-
- n = libcfs_ipif_enumerate(&names);
- if (n <= 0) {
- CERROR("Can't enumerate interfaces: %d\n", n);
- return n;
- }
-
- for (i = j = 0; i < n; i++) {
- int up;
- __u32 ip;
- __u32 mask;
-
- if (!strcmp(names[i], "lo")) /* skip the loopback IF */
- continue;
+ int new_ipif = 0;
+ int i;
+
+ for (i = 0; i < net->ksnn_ninterfaces; i++) {
+ char *ifnam = &net->ksnn_interfaces[i].ksni_name[0];
+ char *colon = strchr(ifnam, ':');
+ int found = 0;
+ struct ksock_net *tmp;
+ int j;
+
+ if (colon != NULL) /* ignore alias device */
+ *colon = 0;
+
+ list_for_each_entry(tmp, &ksocknal_data.ksnd_nets,
+ ksnn_list) {
+ for (j = 0; !found && j < tmp->ksnn_ninterfaces; j++) {
+ char *ifnam2 = &tmp->ksnn_interfaces[j].\
+ ksni_name[0];
+ char *colon2 = strchr(ifnam2, ':');
+
+ if (colon2 != NULL)
+ *colon2 = 0;
+
+ found = strcmp(ifnam, ifnam2) == 0;
+ if (colon2 != NULL)
+ *colon2 = ':';
+ }
+ if (found)
+ break;
+ }
+
+ new_ipif += !found;
+ if (colon != NULL)
+ *colon = ':';
+ }
+
+ return new_ipif;
+}
- rc = libcfs_ipif_query(names[i], &up, &ip, &mask);
- if (rc != 0) {
- CWARN("Can't get interface %s info: %d\n",
- names[i], rc);
- continue;
- }
+static int
+ksocknal_start_schedulers(struct ksock_sched *sched)
+{
+ int nthrs;
+ int rc = 0;
+ int i;
+
+ if (sched->kss_nthreads == 0) {
+ if (*ksocknal_tunables.ksnd_nscheds > 0) {
+ nthrs = sched->kss_nthreads_max;
+ } else {
+ nthrs = cfs_cpt_weight(lnet_cpt_table(),
+ sched->kss_cpt);
+ nthrs = min(max(SOCKNAL_NSCHEDS, nthrs >> 1), nthrs);
+ nthrs = min(SOCKNAL_NSCHEDS_HIGH, nthrs);
+ }
+ nthrs = min(nthrs, sched->kss_nthreads_max);
+ } else {
+ LASSERT(sched->kss_nthreads <= sched->kss_nthreads_max);
+ /* increase two threads if there is new interface */
+ nthrs = min(2, sched->kss_nthreads_max - sched->kss_nthreads);
+ }
+
+ for (i = 0; i < nthrs; i++) {
+ long id;
+ char name[20];
+
+ id = KSOCK_THREAD_ID(sched->kss_cpt, sched->kss_nthreads + i);
+ snprintf(name, sizeof(name), "socknal_sd%02d_%02d",
+ sched->kss_cpt, (int)KSOCK_THREAD_SID(id));
+
+ rc = ksocknal_thread_start(ksocknal_scheduler,
+ (void *)id, name);
+ if (rc == 0)
+ continue;
+
+ CERROR("Can't spawn thread %d for scheduler[%d]: %d\n",
+ sched->kss_cpt, (int) KSOCK_THREAD_SID(id), rc);
+ break;
+ }
+
+ sched->kss_nthreads += i;
+ return rc;
+}
- if (!up) {
- CWARN("Ignoring interface %s (down)\n",
- names[i]);
- continue;
- }
+static int
+ksocknal_net_start_threads(struct ksock_net *net, __u32 *cpts, int ncpts)
+{
+ int newif = ksocknal_search_new_ipif(net);
+ int rc;
+ int i;
- if (j == LNET_MAX_INTERFACES) {
- CWARN("Ignoring interface %s (too many interfaces)\n",
- names[i]);
- continue;
- }
+ if (ncpts > 0 && ncpts > cfs_cpt_number(lnet_cpt_table()))
+ return -EINVAL;
- net->ksnn_interfaces[j].ksni_ipaddr = ip;
- net->ksnn_interfaces[j].ksni_netmask = mask;
- j++;
- }
+ for (i = 0; i < ncpts; i++) {
+ struct ksock_sched *sched;
+ int cpt = (cpts == NULL) ? i : cpts[i];
- libcfs_ipif_free_enumeration(names, n);
+ LASSERT(cpt < cfs_cpt_number(lnet_cpt_table()));
+ sched = ksocknal_data.ksnd_schedulers[cpt];
- if (j == 0)
- CERROR("Can't find any usable interfaces\n");
+ if (!newif && sched->kss_nthreads > 0)
+ continue;
- return j;
+ rc = ksocknal_start_schedulers(sched);
+ if (rc != 0)
+ return rc;
+ }
+ return 0;
}
int
-ksocknal_startup (lnet_ni_t *ni)
+ksocknal_startup(struct lnet_ni *ni)
{
- ksock_net_t *net;
- int rc;
- int i;
+ struct ksock_net *net;
+ struct lnet_ioctl_config_lnd_cmn_tunables *net_tunables;
+ struct ksock_interface *ksi = NULL;
+ struct lnet_inetdev *ifaces = NULL;
+ int i = 0;
+ int rc;
- LASSERT (ni->ni_lnd == &the_ksocklnd);
+ LASSERT (ni->ni_net->net_lnd == &the_ksocklnd);
if (ksocknal_data.ksnd_init == SOCKNAL_INIT_NOTHING) {
rc = ksocknal_base_startup();
if (net == NULL)
goto fail_0;
- memset(net, 0, sizeof(*net));
- cfs_spin_lock_init(&net->ksnn_lock);
- net->ksnn_incarnation = ksocknal_new_incarnation();
- ni->ni_data = net;
- ni->ni_maxtxcredits = *ksocknal_tunables.ksnd_credits;
- ni->ni_peertxcredits = *ksocknal_tunables.ksnd_peercredits;
-
- if (ni->ni_interfaces[0] == NULL) {
- rc = ksocknal_enumerate_interfaces(net);
- if (rc <= 0)
- goto fail_1;
-
- net->ksnn_ninterfaces = 1;
- } else {
- for (i = 0; i < LNET_MAX_INTERFACES; i++) {
- int up;
-
- if (ni->ni_interfaces[i] == NULL)
- break;
-
- rc = libcfs_ipif_query(
- ni->ni_interfaces[i], &up,
- &net->ksnn_interfaces[i].ksni_ipaddr,
- &net->ksnn_interfaces[i].ksni_netmask);
-
- if (rc != 0) {
- CERROR("Can't get interface %s info: %d\n",
- ni->ni_interfaces[i], rc);
- goto fail_1;
- }
-
- if (!up) {
- CERROR("Interface %s is down\n",
- ni->ni_interfaces[i]);
- goto fail_1;
- }
- }
- net->ksnn_ninterfaces = i;
- }
-
- ni->ni_nid = LNET_MKNID(LNET_NIDNET(ni->ni_nid),
- net->ksnn_interfaces[0].ksni_ipaddr);
+ spin_lock_init(&net->ksnn_lock);
+ net->ksnn_incarnation = ktime_get_real_ns();
+ ni->ni_data = net;
+ net_tunables = &ni->ni_net->net_tunables;
+
+ if (net_tunables->lct_peer_timeout == -1)
+ net_tunables->lct_peer_timeout =
+ *ksocknal_tunables.ksnd_peertimeout;
+
+ if (net_tunables->lct_max_tx_credits == -1)
+ net_tunables->lct_max_tx_credits =
+ *ksocknal_tunables.ksnd_credits;
+
+ if (net_tunables->lct_peer_tx_credits == -1)
+ net_tunables->lct_peer_tx_credits =
+ *ksocknal_tunables.ksnd_peertxcredits;
+
+ if (net_tunables->lct_peer_tx_credits >
+ net_tunables->lct_max_tx_credits)
+ net_tunables->lct_peer_tx_credits =
+ net_tunables->lct_max_tx_credits;
+
+ if (net_tunables->lct_peer_rtr_credits == -1)
+ net_tunables->lct_peer_rtr_credits =
+ *ksocknal_tunables.ksnd_peerrtrcredits;
+
+ rc = lnet_inet_enumerate(&ifaces, ni->ni_net_ns);
+ if (rc < 0)
+ goto fail_1;
+
+ if (!ni->ni_interfaces[0]) {
+ ksi = &net->ksnn_interfaces[0];
+
+ /* Use the first discovered interface */
+ net->ksnn_ninterfaces = 1;
+ ni->ni_dev_cpt = ifaces[0].li_cpt;
+ ksi->ksni_ipaddr = ifaces[0].li_ipaddr;
+ ksi->ksni_netmask = ifaces[0].li_netmask;
+ strlcpy(ksi->ksni_name, ifaces[0].li_name,
+ sizeof(ksi->ksni_name));
+ } else {
+ /* Before Multi-Rail ksocklnd would manage
+ * multiple interfaces with its own tcp bonding.
+ * If we encounter an old configuration using
+ * this tcp bonding approach then we need to
+ * handle more than one ni_interfaces.
+ *
+ * In Multi-Rail configuration only ONE ni_interface
+ * should exist. Each IP alias should be mapped to
+ * each 'struct net_ni'.
+ */
+ for (i = 0; i < LNET_INTERFACES_NUM; i++) {
+ int j;
+
+ if (!ni->ni_interfaces[i])
+ break;
+
+ for (j = 0; j < LNET_INTERFACES_NUM; j++) {
+ if (i != j && ni->ni_interfaces[j] &&
+ strcmp(ni->ni_interfaces[i],
+ ni->ni_interfaces[j]) == 0) {
+ rc = -EEXIST;
+ CERROR("ksocklnd: found duplicate %s at %d and %d, rc = %d\n",
+ ni->ni_interfaces[i], i, j, rc);
+ goto fail_1;
+ }
+ }
+
+ for (j = 0; j < rc; j++) {
+ if (strcmp(ifaces[j].li_name,
+ ni->ni_interfaces[i]) != 0)
+ continue;
+
+ ksi = &net->ksnn_interfaces[j];
+ ni->ni_dev_cpt = ifaces[j].li_cpt;
+ ksi->ksni_ipaddr = ifaces[j].li_ipaddr;
+ ksi->ksni_netmask = ifaces[j].li_netmask;
+ strlcpy(ksi->ksni_name, ifaces[j].li_name,
+ sizeof(ksi->ksni_name));
+ net->ksnn_ninterfaces++;
+ break;
+ }
+ }
+ /* ni_interfaces don't map to all network interfaces */
+ if (!ksi || net->ksnn_ninterfaces != i) {
+ CERROR("ksocklnd: requested %d but only %d interfaces found\n",
+ i, net->ksnn_ninterfaces);
+ goto fail_1;
+ }
+ }
+
+ /* call it before add it to ksocknal_data.ksnd_nets */
+ rc = ksocknal_net_start_threads(net, ni->ni_cpts, ni->ni_ncpts);
+ if (rc != 0)
+ goto fail_1;
+
+ LASSERT(ksi);
+ ni->ni_nid = LNET_MKNID(LNET_NIDNET(ni->ni_nid), ksi->ksni_ipaddr);
+ list_add(&net->ksnn_list, &ksocknal_data.ksnd_nets);
ksocknal_data.ksnd_nnets++;
}
-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);
}
-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_accept = ksocknal_accept;
-
- rc = ksocknal_tunables_init();
- if (rc != 0)
- return rc;
-
- lnet_register_lnd(&the_ksocklnd);
-
- return 0;
+ 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_peer_down = ksocknal_notify_gw_down;
+ 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);
+
+ 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