*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*
* lnet/klnds/socklnd/socklnd.c
*
* Author: Eric Barton <eric@bartonsoftware.com>
*/
+#include <linux/ethtool.h>
#include <linux/inetdevice.h>
#include "socklnd.h"
+#include <linux/sunrpc/addr.h>
static const struct lnet_lnd the_ksocklnd;
struct ksock_nal_data ksocknal_data;
static struct ksock_interface *
-ksocknal_ip2iface(struct lnet_ni *ni, __u32 ip)
+ksocknal_ip2iface(struct lnet_ni *ni, struct sockaddr *addr)
{
struct ksock_net *net = ni->ni_data;
- int i;
struct ksock_interface *iface;
- for (i = 0; i < net->ksnn_ninterfaces; i++) {
- LASSERT(i < LNET_INTERFACES_NUM);
- iface = &net->ksnn_interfaces[i];
+ iface = &net->ksnn_interface;
- if (iface->ksni_ipaddr == ip)
- return iface;
- }
+ if (rpc_cmp_addr((struct sockaddr *)&iface->ksni_addr, addr))
+ return iface;
return NULL;
}
ksocknal_index2iface(struct lnet_ni *ni, int index)
{
struct ksock_net *net = ni->ni_data;
- int i;
struct ksock_interface *iface;
- for (i = 0; i < net->ksnn_ninterfaces; i++) {
- LASSERT(i < LNET_INTERFACES_NUM);
- iface = &net->ksnn_interfaces[i];
+ iface = &net->ksnn_interface;
- if (iface->ksni_index == index)
- return iface;
- }
+ if (iface->ksni_index == index)
+ return iface;
return NULL;
}
-static int ksocknal_ip2index(__u32 ipaddress, struct lnet_ni *ni)
+static int ksocknal_ip2index(struct sockaddr *addr, struct lnet_ni *ni)
{
struct net_device *dev;
int ret = -1;
DECLARE_CONST_IN_IFADDR(ifa);
+ if (addr->sa_family != AF_INET)
+ /* No IPv6 support yet */
+ return ret;
+
rcu_read_lock();
for_each_netdev(ni->ni_net_ns, dev) {
int flags = dev_get_flags(dev);
continue;
in_dev_for_each_ifa_rcu(ifa, in_dev) {
- if (ntohl(ifa->ifa_local) == ipaddress)
+ if (ifa->ifa_local ==
+ ((struct sockaddr_in *)addr)->sin_addr.s_addr)
ret = dev->ifindex;
}
endfor_ifa(in_dev);
return ret;
}
-static struct ksock_route *
-ksocknal_create_route(__u32 ipaddr, int port)
+static struct ksock_conn_cb *
+ksocknal_create_conn_cb(struct sockaddr *addr)
{
- struct ksock_route *route;
-
- LIBCFS_ALLOC (route, sizeof (*route));
- if (route == NULL)
- return (NULL);
-
- 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_myiface = -1;
- route->ksnr_port = port;
- route->ksnr_scheduled = 0;
- route->ksnr_connecting = 0;
- route->ksnr_connected = 0;
- route->ksnr_deleted = 0;
- route->ksnr_conn_count = 0;
- route->ksnr_share_count = 0;
-
- return route;
+ struct ksock_conn_cb *conn_cb;
+
+ LIBCFS_ALLOC(conn_cb, sizeof(*conn_cb));
+ if (!conn_cb)
+ return NULL;
+
+ refcount_set(&conn_cb->ksnr_refcount, 1);
+ conn_cb->ksnr_peer = NULL;
+ conn_cb->ksnr_retry_interval = 0; /* OK to connect at any time */
+ rpc_copy_addr((struct sockaddr *)&conn_cb->ksnr_addr, addr);
+ rpc_set_port((struct sockaddr *)&conn_cb->ksnr_addr,
+ rpc_get_port(addr));
+ conn_cb->ksnr_myiface = -1;
+ conn_cb->ksnr_scheduled = 0;
+ conn_cb->ksnr_connecting = 0;
+ conn_cb->ksnr_connected = 0;
+ conn_cb->ksnr_deleted = 0;
+ conn_cb->ksnr_conn_count = 0;
+ conn_cb->ksnr_ctrl_conn_count = 0;
+ conn_cb->ksnr_blki_conn_count = 0;
+ conn_cb->ksnr_blko_conn_count = 0;
+ conn_cb->ksnr_max_conns = 0;
+
+ return conn_cb;
}
void
-ksocknal_destroy_route(struct ksock_route *route)
+ksocknal_destroy_conn_cb(struct ksock_conn_cb *conn_cb)
{
- LASSERT (atomic_read(&route->ksnr_refcount) == 0);
+ LASSERT(refcount_read(&conn_cb->ksnr_refcount) == 0);
- if (route->ksnr_peer != NULL)
- ksocknal_peer_decref(route->ksnr_peer);
+ if (conn_cb->ksnr_peer)
+ ksocknal_peer_decref(conn_cb->ksnr_peer);
- LIBCFS_FREE (route, sizeof (*route));
+ LIBCFS_FREE(conn_cb, sizeof(*conn_cb));
}
static struct ksock_peer_ni *
-ksocknal_create_peer(struct lnet_ni *ni, struct lnet_process_id id)
+ksocknal_create_peer(struct lnet_ni *ni, struct lnet_processid *id)
{
- int cpt = lnet_cpt_of_nid(id.nid, ni);
+ int cpt = lnet_nid2cpt(&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(!LNET_NID_IS_ANY(&id->nid));
+ LASSERT(id->pid != LNET_PID_ANY);
LASSERT(!in_interrupt());
if (!atomic_inc_unless_negative(&net->ksnn_npeers)) {
}
peer_ni->ksnp_ni = ni;
- peer_ni->ksnp_id = id;
- atomic_set(&peer_ni->ksnp_refcount, 1); /* 1 ref for caller */
+ peer_ni->ksnp_id = *id;
+ refcount_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_ni->ksnp_conn_cb = NULL;
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);
struct ksock_net *net = peer_ni->ksnp_ni->ni_data;
CDEBUG (D_NET, "peer_ni %s %p deleted\n",
- libcfs_id2str(peer_ni->ksnp_id), peer_ni);
+ libcfs_idstr(&peer_ni->ksnp_id), peer_ni);
- LASSERT(atomic_read(&peer_ni->ksnp_refcount) == 0);
+ LASSERT(refcount_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(peer_ni->ksnp_conn_cb == NULL);
LASSERT(list_empty(&peer_ni->ksnp_tx_queue));
LASSERT(list_empty(&peer_ni->ksnp_zc_req_list));
LIBCFS_FREE(peer_ni, sizeof(*peer_ni));
- /* NB a peer_ni's connections and routes keep a reference on their
+ /* NB a peer_ni's connections and conn_cb keep a reference on their
* peer_ni until they are destroyed, so we can be assured that _all_
* state to do with this peer_ni has been cleaned up when its refcount
* drops to zero.
}
struct ksock_peer_ni *
-ksocknal_find_peer_locked(struct lnet_ni *ni, struct lnet_process_id id)
+ksocknal_find_peer_locked(struct lnet_ni *ni, struct lnet_processid *id)
{
struct ksock_peer_ni *peer_ni;
+ unsigned long hash = nidhash(&id->nid);
hash_for_each_possible(ksocknal_data.ksnd_peers, peer_ni,
- ksnp_list, id.nid) {
+ ksnp_list, hash) {
LASSERT(!peer_ni->ksnp_closing);
if (peer_ni->ksnp_ni != ni)
continue;
- if (peer_ni->ksnp_id.nid != id.nid ||
- peer_ni->ksnp_id.pid != id.pid)
+ if (!nid_same(&peer_ni->ksnp_id.nid, &id->nid) ||
+ peer_ni->ksnp_id.pid != id->pid)
continue;
CDEBUG(D_NET, "got peer_ni [%p] -> %s (%d)\n",
- peer_ni, libcfs_id2str(id),
- atomic_read(&peer_ni->ksnp_refcount));
+ peer_ni, libcfs_idstr(id),
+ refcount_read(&peer_ni->ksnp_refcount));
return peer_ni;
}
return NULL;
}
struct ksock_peer_ni *
-ksocknal_find_peer(struct lnet_ni *ni, struct lnet_process_id id)
+ksocknal_find_peer(struct lnet_ni *ni, struct lnet_processid *id)
{
struct ksock_peer_ni *peer_ni;
ksocknal_peer_addref(peer_ni);
read_unlock(&ksocknal_data.ksnd_global_lock);
- return (peer_ni);
+ return peer_ni;
}
static void
ksocknal_unlink_peer_locked(struct ksock_peer_ni *peer_ni)
{
int i;
- __u32 ip;
struct ksock_interface *iface;
for (i = 0; i < peer_ni->ksnp_n_passive_ips; i++) {
+ struct sockaddr_in sa = { .sin_family = AF_INET };
LASSERT(i < LNET_INTERFACES_NUM);
- ip = peer_ni->ksnp_passive_ips[i];
+ sa.sin_addr.s_addr = htonl(peer_ni->ksnp_passive_ips[i]);
- iface = ksocknal_ip2iface(peer_ni->ksnp_ni, ip);
+ iface = ksocknal_ip2iface(peer_ni->ksnp_ni,
+ (struct sockaddr *)&sa);
/*
* All IPs in peer_ni->ksnp_passive_ips[] come from the
* interface list, therefore the call must succeed.
}
LASSERT(list_empty(&peer_ni->ksnp_conns));
- LASSERT(list_empty(&peer_ni->ksnp_routes));
+ LASSERT(peer_ni->ksnp_conn_cb == NULL);
LASSERT(!peer_ni->ksnp_closing);
peer_ni->ksnp_closing = 1;
hlist_del(&peer_ni->ksnp_list);
static int
ksocknal_get_peer_info(struct lnet_ni *ni, int index,
- struct lnet_process_id *id, __u32 *myip, __u32 *peer_ip,
+ struct lnet_processid *id, __u32 *myip, __u32 *peer_ip,
int *port, int *conn_count, int *share_count)
{
struct ksock_peer_ni *peer_ni;
- struct ksock_route *route;
- struct list_head *rtmp;
+ struct ksock_conn_cb *conn_cb;
int i;
int j;
int rc = -ENOENT;
continue;
if (peer_ni->ksnp_n_passive_ips == 0 &&
- list_empty(&peer_ni->ksnp_routes)) {
+ peer_ni->ksnp_conn_cb == NULL) {
if (index-- > 0)
continue;
goto out;
}
- list_for_each(rtmp, &peer_ni->ksnp_routes) {
+ if (peer_ni->ksnp_conn_cb) {
if (index-- > 0)
continue;
- route = list_entry(rtmp, struct ksock_route,
- ksnr_list);
+ conn_cb = peer_ni->ksnp_conn_cb;
*id = peer_ni->ksnp_id;
- rc = choose_ipv4_src(myip, route->ksnr_myiface,
- route->ksnr_ipaddr,
- ni->ni_net_ns);
- *peer_ip = route->ksnr_ipaddr;
- *port = route->ksnr_port;
- *conn_count = route->ksnr_conn_count;
- *share_count = route->ksnr_share_count;
+ if (conn_cb->ksnr_addr.ss_family == AF_INET) {
+ struct sockaddr_in *sa =
+ (void *)&conn_cb->ksnr_addr;
+
+ rc = choose_ipv4_src(myip,
+ conn_cb->ksnr_myiface,
+ ntohl(sa->sin_addr.s_addr),
+ ni->ni_net_ns);
+ *peer_ip = ntohl(sa->sin_addr.s_addr);
+ *port = ntohs(sa->sin_port);
+ } else {
+ *myip = 0xFFFFFFFF;
+ *peer_ip = 0xFFFFFFFF;
+ *port = 0;
+ rc = -ENOTSUPP;
+ }
+ *conn_count = conn_cb->ksnr_conn_count;
+ *share_count = 1;
goto out;
}
}
return rc;
}
+static unsigned int
+ksocknal_get_conn_count_by_type(struct ksock_conn_cb *conn_cb,
+ int type)
+{
+ unsigned int count = 0;
+
+ switch (type) {
+ case SOCKLND_CONN_CONTROL:
+ count = conn_cb->ksnr_ctrl_conn_count;
+ break;
+ case SOCKLND_CONN_BULK_IN:
+ count = conn_cb->ksnr_blki_conn_count;
+ break;
+ case SOCKLND_CONN_BULK_OUT:
+ count = conn_cb->ksnr_blko_conn_count;
+ break;
+ case SOCKLND_CONN_ANY:
+ count = conn_cb->ksnr_conn_count;
+ break;
+ default:
+ LBUG();
+ break;
+ }
+
+ return count;
+}
+
+static unsigned int
+ksocknal_get_conns_per_peer(struct ksock_peer_ni *peer_ni)
+{
+ struct lnet_ni *ni = peer_ni->ksnp_ni;
+ struct lnet_ioctl_config_socklnd_tunables *tunables;
+
+ LASSERT(ni);
+
+ tunables = &ni->ni_lnd_tunables.lnd_tun_u.lnd_sock;
+
+ return tunables->lnd_conns_per_peer;
+}
+
static void
-ksocknal_associate_route_conn_locked(struct ksock_route *route,
- struct ksock_conn *conn)
+ksocknal_incr_conn_count(struct ksock_conn_cb *conn_cb,
+ int type)
{
- struct ksock_peer_ni *peer_ni = route->ksnr_peer;
+ conn_cb->ksnr_conn_count++;
+
+ /* check if all connections of the given type got created */
+ switch (type) {
+ case SOCKLND_CONN_CONTROL:
+ conn_cb->ksnr_ctrl_conn_count++;
+ /* there's a single control connection per peer,
+ * two in case of loopback
+ */
+ conn_cb->ksnr_connected |= BIT(type);
+ break;
+ case SOCKLND_CONN_BULK_IN:
+ conn_cb->ksnr_blki_conn_count++;
+ if (conn_cb->ksnr_blki_conn_count >= conn_cb->ksnr_max_conns)
+ conn_cb->ksnr_connected |= BIT(type);
+ break;
+ case SOCKLND_CONN_BULK_OUT:
+ conn_cb->ksnr_blko_conn_count++;
+ if (conn_cb->ksnr_blko_conn_count >= conn_cb->ksnr_max_conns)
+ conn_cb->ksnr_connected |= BIT(type);
+ break;
+ case SOCKLND_CONN_ANY:
+ if (conn_cb->ksnr_conn_count >= conn_cb->ksnr_max_conns)
+ conn_cb->ksnr_connected |= BIT(type);
+ break;
+ default:
+ LBUG();
+ break;
+ }
+
+ CDEBUG(D_NET, "Add conn type %d, ksnr_connected %x ksnr_max_conns %d\n",
+ type, conn_cb->ksnr_connected, conn_cb->ksnr_max_conns);
+}
+
+
+static void
+ksocknal_decr_conn_count(struct ksock_conn_cb *conn_cb,
+ int type)
+{
+ conn_cb->ksnr_conn_count--;
+
+ /* check if all connections of the given type got created */
+ switch (type) {
+ case SOCKLND_CONN_CONTROL:
+ conn_cb->ksnr_ctrl_conn_count--;
+ /* there's a single control connection per peer,
+ * two in case of loopback
+ */
+ if (conn_cb->ksnr_ctrl_conn_count == 0)
+ conn_cb->ksnr_connected &= ~BIT(type);
+ break;
+ case SOCKLND_CONN_BULK_IN:
+ conn_cb->ksnr_blki_conn_count--;
+ if (conn_cb->ksnr_blki_conn_count < conn_cb->ksnr_max_conns)
+ conn_cb->ksnr_connected &= ~BIT(type);
+ break;
+ case SOCKLND_CONN_BULK_OUT:
+ conn_cb->ksnr_blko_conn_count--;
+ if (conn_cb->ksnr_blko_conn_count < conn_cb->ksnr_max_conns)
+ conn_cb->ksnr_connected &= ~BIT(type);
+ break;
+ case SOCKLND_CONN_ANY:
+ if (conn_cb->ksnr_conn_count < conn_cb->ksnr_max_conns)
+ conn_cb->ksnr_connected &= ~BIT(type);
+ break;
+ default:
+ LBUG();
+ break;
+ }
+
+ CDEBUG(D_NET, "Del conn type %d, ksnr_connected %x ksnr_max_conns %d\n",
+ type, conn_cb->ksnr_connected, conn_cb->ksnr_max_conns);
+}
+
+static void
+ksocknal_associate_cb_conn_locked(struct ksock_conn_cb *conn_cb,
+ struct ksock_conn *conn)
+{
+ struct ksock_peer_ni *peer_ni = conn_cb->ksnr_peer;
int type = conn->ksnc_type;
struct ksock_interface *iface;
- int conn_iface = ksocknal_ip2index(conn->ksnc_myipaddr,
- route->ksnr_peer->ksnp_ni);
+ int conn_iface;
- conn->ksnc_route = route;
- ksocknal_route_addref(route);
+ conn_iface = ksocknal_ip2index((struct sockaddr *)&conn->ksnc_myaddr,
+ peer_ni->ksnp_ni);
+ conn->ksnc_conn_cb = conn_cb;
+ ksocknal_conn_cb_addref(conn_cb);
- if (route->ksnr_myiface != conn_iface) {
- if (route->ksnr_myiface < 0) {
+ if (conn_cb->ksnr_myiface != conn_iface) {
+ if (conn_cb->ksnr_myiface < 0) {
/* route wasn't bound locally yet (the initial route) */
- CDEBUG(D_NET, "Binding %s %pI4h to interface %d\n",
- libcfs_id2str(peer_ni->ksnp_id),
- &route->ksnr_ipaddr,
+ CDEBUG(D_NET, "Binding %s %pIS to interface %d\n",
+ libcfs_idstr(&peer_ni->ksnp_id),
+ &conn_cb->ksnr_addr,
conn_iface);
} else {
CDEBUG(D_NET,
- "Rebinding %s %pI4h from interface %d to %d\n",
- libcfs_id2str(peer_ni->ksnp_id),
- &route->ksnr_ipaddr,
- route->ksnr_myiface,
+ "Rebinding %s %pIS from interface %d to %d\n",
+ libcfs_idstr(&peer_ni->ksnp_id),
+ &conn_cb->ksnr_addr,
+ conn_cb->ksnr_myiface,
conn_iface);
- iface = ksocknal_index2iface(route->ksnr_peer->ksnp_ni,
- route->ksnr_myiface);
+ iface = ksocknal_index2iface(peer_ni->ksnp_ni,
+ conn_cb->ksnr_myiface);
if (iface)
iface->ksni_nroutes--;
}
- route->ksnr_myiface = conn_iface;
- iface = ksocknal_index2iface(route->ksnr_peer->ksnp_ni,
- route->ksnr_myiface);
+ conn_cb->ksnr_myiface = conn_iface;
+ iface = ksocknal_index2iface(peer_ni->ksnp_ni,
+ conn_cb->ksnr_myiface);
if (iface)
iface->ksni_nroutes++;
}
- route->ksnr_connected |= (1<<type);
- route->ksnr_conn_count++;
+ ksocknal_incr_conn_count(conn_cb, type);
/* Successful connection => further attempts can
* proceed immediately
*/
- route->ksnr_retry_interval = 0;
+ conn_cb->ksnr_retry_interval = 0;
}
static void
-ksocknal_add_route_locked(struct ksock_peer_ni *peer_ni, struct ksock_route *route)
+ksocknal_add_conn_cb_locked(struct ksock_peer_ni *peer_ni,
+ struct ksock_conn_cb *conn_cb)
{
- struct list_head *tmp;
struct ksock_conn *conn;
- struct ksock_route *route2;
+ struct ksock_net *net = peer_ni->ksnp_ni->ni_data;
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();
- }
- }
+ LASSERT(!conn_cb->ksnr_peer);
+ LASSERT(!conn_cb->ksnr_scheduled);
+ LASSERT(!conn_cb->ksnr_connecting);
+ LASSERT(conn_cb->ksnr_connected == 0);
- route->ksnr_peer = peer_ni;
+ conn_cb->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);
+ /* set the conn_cb's interface to the current net's interface */
+ conn_cb->ksnr_myiface = net->ksnn_interface.ksni_index;
+ net->ksnn_interface.ksni_nroutes++;
- if (conn->ksnc_ipaddr != route->ksnr_ipaddr)
+ /* peer_ni's route list takes over my ref on 'route' */
+ peer_ni->ksnp_conn_cb = conn_cb;
+
+ list_for_each_entry(conn, &peer_ni->ksnp_conns, ksnc_list) {
+ if (!rpc_cmp_addr((struct sockaddr *)&conn->ksnc_peeraddr,
+ (struct sockaddr *)&conn_cb->ksnr_addr))
continue;
- ksocknal_associate_route_conn_locked(route, conn);
- /* keep going (typed routes) */
+ ksocknal_associate_cb_conn_locked(conn_cb, conn);
+ /* keep going (typed conns) */
}
}
static void
-ksocknal_del_route_locked(struct ksock_route *route)
+ksocknal_del_conn_cb_locked(struct ksock_conn_cb *conn_cb)
{
- struct ksock_peer_ni *peer_ni = route->ksnr_peer;
+ struct ksock_peer_ni *peer_ni = conn_cb->ksnr_peer;
struct ksock_interface *iface;
struct ksock_conn *conn;
- struct list_head *ctmp;
- struct list_head *cnxt;
+ struct ksock_conn *cnxt;
- LASSERT(!route->ksnr_deleted);
+ LASSERT(!conn_cb->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)
+ list_for_each_entry_safe(conn, cnxt, &peer_ni->ksnp_conns, ksnc_list) {
+ if (conn->ksnc_conn_cb != conn_cb)
continue;
ksocknal_close_conn_locked(conn, 0);
}
- if (route->ksnr_myiface >= 0) {
- iface = ksocknal_index2iface(route->ksnr_peer->ksnp_ni,
- route->ksnr_myiface);
+ if (conn_cb->ksnr_myiface >= 0) {
+ iface = ksocknal_index2iface(peer_ni->ksnp_ni,
+ conn_cb->ksnr_myiface);
if (iface)
iface->ksni_nroutes--;
}
- route->ksnr_deleted = 1;
- list_del(&route->ksnr_list);
- ksocknal_route_decref(route); /* drop peer_ni's ref */
+ conn_cb->ksnr_deleted = 1;
+ ksocknal_conn_cb_decref(conn_cb); /* drop peer_ni's ref */
+ peer_ni->ksnp_conn_cb = NULL;
- if (list_empty(&peer_ni->ksnp_routes) &&
- list_empty(&peer_ni->ksnp_conns)) {
+ if (list_empty(&peer_ni->ksnp_conns)) {
/* I've just removed the last route to a peer_ni with no active
- * connections */
+ * connections
+ */
ksocknal_unlink_peer_locked(peer_ni);
}
}
int
-ksocknal_add_peer(struct lnet_ni *ni, struct lnet_process_id id, __u32 ipaddr,
- int port)
+ksocknal_add_peer(struct lnet_ni *ni, struct lnet_processid *id,
+ struct sockaddr *addr)
{
- struct list_head *tmp;
struct ksock_peer_ni *peer_ni;
struct ksock_peer_ni *peer2;
- struct ksock_route *route;
- struct ksock_route *route2;
+ struct ksock_conn_cb *conn_cb;
- if (id.nid == LNET_NID_ANY ||
- id.pid == LNET_PID_ANY)
- return (-EINVAL);
+ if (LNET_NID_IS_ANY(&id->nid) ||
+ id->pid == LNET_PID_ANY)
+ return (-EINVAL);
/* Have a brand new peer_ni ready... */
peer_ni = ksocknal_create_peer(ni, id);
if (IS_ERR(peer_ni))
return PTR_ERR(peer_ni);
- route = ksocknal_create_route (ipaddr, port);
- if (route == NULL) {
- ksocknal_peer_decref(peer_ni);
- return (-ENOMEM);
- }
+ conn_cb = ksocknal_create_conn_cb(addr);
+ if (!conn_cb) {
+ ksocknal_peer_decref(peer_ni);
+ return -ENOMEM;
+ }
write_lock_bh(&ksocknal_data.ksnd_global_lock);
- /* always called with a ref on ni, so shutdown can't have started */
+ /* always called with a ref on ni, so shutdown can't have started */
LASSERT(atomic_read(&((struct ksock_net *)ni->ni_data)->ksnn_npeers)
>= 0);
peer_ni = peer2;
} else {
/* peer_ni table takes my ref on peer_ni */
- hash_add(ksocknal_data.ksnd_peers, &peer_ni->ksnp_list, id.nid);
+ hash_add(ksocknal_data.ksnd_peers, &peer_ni->ksnp_list,
+ nidhash(&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++;
+ if (peer_ni->ksnp_conn_cb) {
+ ksocknal_conn_cb_decref(conn_cb);
} else {
- ksocknal_route_decref(route);
- route2->ksnr_share_count++;
+ ksocknal_add_conn_cb_locked(peer_ni, conn_cb);
+ /* Remember conns_per_peer setting at the time
+ * of connection initiation. It will define the
+ * max number of conns per type for this conn_cb
+ * while it's in use.
+ */
+ conn_cb->ksnr_max_conns = ksocknal_get_conns_per_peer(peer_ni);
}
write_unlock_bh(&ksocknal_data.ksnd_global_lock);
}
static void
-ksocknal_del_peer_locked(struct ksock_peer_ni *peer_ni, __u32 ip)
+ksocknal_del_peer_locked(struct ksock_peer_ni *peer_ni)
{
struct ksock_conn *conn;
- struct ksock_route *route;
- struct list_head *tmp;
- struct list_head *nxt;
- int nshared;
+ struct ksock_conn *cnxt;
+ struct ksock_conn_cb *conn_cb;
LASSERT(!peer_ni->ksnp_closing);
/* Extra ref prevents peer_ni disappearing until I'm done with it */
ksocknal_peer_addref(peer_ni);
+ conn_cb = peer_ni->ksnp_conn_cb;
+ if (conn_cb)
+ ksocknal_del_conn_cb_locked(conn_cb);
- 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;
-
- route->ksnr_share_count = 0;
- /* This deletes associated conns too */
- ksocknal_del_route_locked(route);
- }
-
- 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 */
-
- 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);
- }
-
- 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);
- }
- }
+ list_for_each_entry_safe(conn, cnxt, &peer_ni->ksnp_conns,
+ ksnc_list)
+ ksocknal_close_conn_locked(conn, 0);
ksocknal_peer_decref(peer_ni);
- /* NB peer_ni unlinks itself when last conn/route is removed */
+ /* NB peer_ni unlinks itself when last conn/conn_cb is removed */
}
static int
-ksocknal_del_peer(struct lnet_ni *ni, struct lnet_process_id id, __u32 ip)
+ksocknal_del_peer(struct lnet_ni *ni, struct lnet_processid *id)
{
LIST_HEAD(zombies);
struct hlist_node *pnxt;
write_lock_bh(&ksocknal_data.ksnd_global_lock);
- if (id.nid != LNET_NID_ANY) {
- lo = hash_min(id.nid, HASH_BITS(ksocknal_data.ksnd_peers));
+ if (id && !LNET_NID_IS_ANY(&id->nid)) {
+ lo = hash_min(nidhash(&id->nid),
+ HASH_BITS(ksocknal_data.ksnd_peers));
hi = lo;
} else {
lo = 0;
if (peer_ni->ksnp_ni != ni)
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)))
+ if (!((!id || LNET_NID_IS_ANY(&id->nid) ||
+ nid_same(&peer_ni->ksnp_id.nid, &id->nid)) &&
+ (!id || id->pid == LNET_PID_ANY ||
+ peer_ni->ksnp_id.pid == id->pid)))
continue;
ksocknal_peer_addref(peer_ni); /* a ref for me... */
- ksocknal_del_peer_locked(peer_ni, ip);
+ ksocknal_del_peer_locked(peer_ni);
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));
+ LASSERT(peer_ni->ksnp_conn_cb == NULL);
list_splice_init(&peer_ni->ksnp_tx_queue,
&zombies);
{
struct ksock_peer_ni *peer_ni;
struct ksock_conn *conn;
- struct list_head *ctmp;
int i;
read_lock(&ksocknal_data.ksnd_global_lock);
if (peer_ni->ksnp_ni != ni)
continue;
- list_for_each(ctmp, &peer_ni->ksnp_conns) {
+ list_for_each_entry(conn, &peer_ni->ksnp_conns,
+ ksnc_list) {
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;
return sched;
}
-static int
-ksocknal_local_ipvec(struct lnet_ni *ni, __u32 *ipaddrs)
-{
- 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;
-}
-
-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;
-
- for (i = 0; i < nips; i++) {
- if (ips[i] == 0)
- continue;
-
- this_xor = (ips[i] ^ iface->ksni_ipaddr);
- this_netmatch = ((this_xor & iface->ksni_netmask) == 0) ? 1 : 0;
-
- if (!(best < 0 ||
- best_netmatch < this_netmatch ||
- (best_netmatch == this_netmatch &&
- best_xor > this_xor)))
- continue;
-
- best = i;
- best_netmatch = this_netmatch;
- best_xor = this_xor;
- }
-
- LASSERT (best >= 0);
- return (best);
-}
-
-static int
-ksocknal_select_ips(struct ksock_peer_ni *peer_ni, __u32 *peerips, int n_peerips)
-{
- 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
- * expecting to be dealing with small numbers of interfaces, so the
- * O(n**3)-ness shouldn't matter */
-
- /* Also note that I'm not going to return more than n_peerips
- * interfaces, even if I have more myself */
-
- write_lock_bh(global_lock);
-
- LASSERT(n_peerips <= LNET_INTERFACES_NUM);
- LASSERT(net->ksnn_ninterfaces <= LNET_INTERFACES_NUM);
-
- /* 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_ni->ksnp_n_passive_ips < n_ips; i++) {
- /* ^ yes really... */
-
- /* If we have any new interfaces, first tick off all the
- * 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_ni->ksnp_n_passive_ips) {
- /* Old interface. */
- ip = peer_ni->ksnp_passive_ips[i];
- best_iface = ksocknal_ip2iface(peer_ni->ksnp_ni, ip);
-
- /* peer_ni passive ips are kept up to date */
- LASSERT(best_iface != NULL);
- } else {
- /* choose a new interface */
- LASSERT (i == peer_ni->ksnp_n_passive_ips);
-
- best_iface = NULL;
- best_netmatch = 0;
- best_npeers = 0;
-
- for (j = 0; j < net->ksnn_ninterfaces; j++) {
- iface = &net->ksnn_interfaces[j];
- ip = iface->ksni_ipaddr;
-
- for (k = 0; k < peer_ni->ksnp_n_passive_ips; k++)
- if (peer_ni->ksnp_passive_ips[k] == ip)
- break;
-
- if (k < peer_ni->ksnp_n_passive_ips) /* using it already */
- continue;
-
- k = ksocknal_match_peerip(iface, peerips, n_peerips);
- xor = (ip ^ peerips[k]);
- this_netmatch = ((xor & iface->ksni_netmask) == 0) ? 1 : 0;
-
- if (!(best_iface == NULL ||
- best_netmatch < this_netmatch ||
- (best_netmatch == this_netmatch &&
- best_npeers > iface->ksni_npeers)))
- continue;
-
- best_iface = iface;
- best_netmatch = this_netmatch;
- best_npeers = iface->ksni_npeers;
- }
-
- LASSERT(best_iface != NULL);
-
- best_iface->ksni_npeers++;
- ip = best_iface->ksni_ipaddr;
- peer_ni->ksnp_passive_ips[i] = ip;
- peer_ni->ksnp_n_passive_ips = i+1;
- }
-
- /* mark the best matching peer_ni IP used */
- j = ksocknal_match_peerip(best_iface, peerips, n_peerips);
- peerips[j] = 0;
- }
-
- /* Overwrite input peer_ni IP addresses */
- memcpy(peerips, peer_ni->ksnp_passive_ips, n_ips * sizeof(*peerips));
-
- write_unlock_bh(global_lock);
-
- return (n_ips);
-}
-
-static void
-ksocknal_create_routes(struct ksock_peer_ni *peer_ni, int port,
- __u32 *peer_ipaddrs, int npeer_ipaddrs)
-{
- 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 */
-
- write_lock_bh(global_lock);
-
- if (net->ksnn_ninterfaces < 2) {
- /* Only create additional connections
- * if I have > 1 interface */
- write_unlock_bh(global_lock);
- return;
- }
-
- LASSERT(npeer_ipaddrs <= LNET_INTERFACES_NUM);
-
- for (i = 0; i < npeer_ipaddrs; i++) {
- if (newroute != NULL) {
- newroute->ksnr_ipaddr = peer_ipaddrs[i];
- } else {
- write_unlock_bh(global_lock);
-
- newroute = ksocknal_create_route(peer_ipaddrs[i], port);
- if (newroute == NULL)
- return;
-
- write_lock_bh(global_lock);
- }
-
- if (peer_ni->ksnp_closing) {
- /* peer_ni got closed under me */
- break;
- }
-
- /* 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;
-
- route = NULL;
- }
- if (route != NULL)
- continue;
-
- best_iface = NULL;
- best_nroutes = 0;
- best_netmatch = 0;
-
- 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];
-
- /* Using this interface already? */
- list_for_each(rtmp, &peer_ni->ksnp_routes) {
- route = list_entry(rtmp, struct ksock_route,
- ksnr_list);
-
- if (route->ksnr_myiface == iface->ksni_index)
- break;
-
- route = NULL;
- }
- if (route != NULL)
- continue;
-
- this_netmatch = (((iface->ksni_ipaddr ^
- newroute->ksnr_ipaddr) &
- iface->ksni_netmask) == 0) ? 1 : 0;
-
- if (!(best_iface == NULL ||
- best_netmatch < this_netmatch ||
- (best_netmatch == this_netmatch &&
- best_nroutes > iface->ksni_nroutes)))
- continue;
-
- best_iface = iface;
- best_netmatch = this_netmatch;
- best_nroutes = iface->ksni_nroutes;
- }
-
- if (best_iface == NULL)
- continue;
-
- newroute->ksnr_myiface = best_iface->ksni_index;
- best_iface->ksni_nroutes++;
-
- ksocknal_add_route_locked(peer_ni, newroute);
- newroute = NULL;
- }
-
- write_unlock_bh(global_lock);
- if (newroute != NULL)
- ksocknal_route_decref(newroute);
-}
-
int
ksocknal_accept(struct lnet_ni *ni, struct socket *sock)
{
struct ksock_connreq *cr;
int rc;
- u32 peer_ip;
- int peer_port;
+ struct sockaddr_storage peer;
- rc = lnet_sock_getaddr(sock, true, &peer_ip, &peer_port);
- LASSERT(rc == 0); /* we succeeded before */
+ rc = lnet_sock_getaddr(sock, true, &peer);
+ if (rc != 0) {
+ CERROR("Can't determine new connection's address\n");
+ return rc;
+ }
LIBCFS_ALLOC(cr, sizeof(*cr));
if (cr == NULL) {
- LCONSOLE_ERROR_MSG(0x12f, "Dropping connection request from "
- "%pI4h: memory exhausted\n", &peer_ip);
+ LCONSOLE_ERROR_MSG(0x12f,
+ "Dropping connection request from %pIS: memory exhausted\n",
+ &peer);
return -ENOMEM;
}
}
static int
-ksocknal_connecting(struct ksock_peer_ni *peer_ni, __u32 ipaddr)
+ksocknal_connecting(struct ksock_conn_cb *conn_cb, struct sockaddr *sa)
{
- struct ksock_route *route;
-
- list_for_each_entry(route, &peer_ni->ksnp_routes, ksnr_list) {
- if (route->ksnr_ipaddr == ipaddr)
- return route->ksnr_connecting;
- }
+ if (conn_cb &&
+ rpc_cmp_addr((struct sockaddr *)&conn_cb->ksnr_addr, sa))
+ return conn_cb->ksnr_connecting;
return 0;
}
int
-ksocknal_create_conn(struct lnet_ni *ni, struct ksock_route *route,
+ksocknal_create_conn(struct lnet_ni *ni, struct ksock_conn_cb *conn_cb,
struct socket *sock, int type)
{
rwlock_t *global_lock = &ksocknal_data.ksnd_global_lock;
LIST_HEAD(zombies);
- struct lnet_process_id peerid;
- struct list_head *tmp;
+ struct lnet_processid peerid;
u64 incarnation;
struct ksock_conn *conn;
struct ksock_conn *conn2;
int rc;
int rc2;
int active;
+ int num_dup = 0;
char *warn = NULL;
- active = (route != NULL);
+ active = (conn_cb != NULL);
- LASSERT (active == (type != SOCKLND_CONN_NONE));
+ LASSERT(active == (type != SOCKLND_CONN_NONE));
- LIBCFS_ALLOC(conn, sizeof(*conn));
- if (conn == NULL) {
- rc = -ENOMEM;
- goto failed_0;
- }
+ LIBCFS_ALLOC(conn, sizeof(*conn));
+ if (conn == NULL) {
+ rc = -ENOMEM;
+ goto failed_0;
+ }
- conn->ksnc_peer = NULL;
- conn->ksnc_route = NULL;
- conn->ksnc_sock = sock;
+ conn->ksnc_peer = NULL;
+ conn->ksnc_conn_cb = NULL;
+ conn->ksnc_sock = sock;
/* 2 ref, 1 for conn, another extra ref prevents socket
* being closed before establishment of connection */
- atomic_set (&conn->ksnc_sock_refcount, 2);
+ refcount_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 */
+ refcount_set(&conn->ksnc_conn_refcount, 1); /* 1 ref for me */
conn->ksnc_rx_ready = 0;
conn->ksnc_rx_scheduled = 0;
LIBCFS_ALLOC(hello, offsetof(struct ksock_hello_msg,
kshm_ips[LNET_INTERFACES_NUM]));
- if (hello == NULL) {
- rc = -ENOMEM;
- goto failed_1;
- }
+ if (hello == NULL) {
+ rc = -ENOMEM;
+ goto failed_1;
+ }
- /* stash conn's local and remote addrs */
- rc = ksocknal_lib_get_conn_addrs (conn);
- if (rc != 0)
- goto failed_1;
+ /* stash conn's local and remote addrs */
+ rc = ksocknal_lib_get_conn_addrs(conn);
+ if (rc != 0)
+ goto failed_1;
- /* 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_ni sends
- * eagerly */
+ /* 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_ni sends
+ * eagerly
+ */
- if (active) {
- peer_ni = route->ksnr_peer;
- LASSERT(ni == peer_ni->ksnp_ni);
+ if (active) {
+ peer_ni = conn_cb->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_ni->ksnp_id;
+ /* Active connection sends HELLO eagerly */
+ hello->kshm_nips = 0;
+ peerid = peer_ni->ksnp_id;
write_lock_bh(global_lock);
- conn->ksnc_proto = peer_ni->ksnp_proto;
+ conn->ksnc_proto = peer_ni->ksnp_proto;
write_unlock_bh(global_lock);
- if (conn->ksnc_proto == NULL) {
- conn->ksnc_proto = &ksocknal_protocol_v3x;
+ if (conn->ksnc_proto == NULL) {
+ conn->ksnc_proto = &ksocknal_protocol_v3x;
#if SOCKNAL_VERSION_DEBUG
- if (*ksocknal_tunables.ksnd_protocol == 2)
- conn->ksnc_proto = &ksocknal_protocol_v2x;
- else if (*ksocknal_tunables.ksnd_protocol == 1)
- conn->ksnc_proto = &ksocknal_protocol_v1x;
+ if (*ksocknal_tunables.ksnd_protocol == 2)
+ conn->ksnc_proto = &ksocknal_protocol_v2x;
+ else if (*ksocknal_tunables.ksnd_protocol == 1)
+ conn->ksnc_proto = &ksocknal_protocol_v1x;
#endif
- }
+ }
- rc = ksocknal_send_hello (ni, conn, peerid.nid, hello);
- if (rc != 0)
- goto failed_1;
- } else {
- peerid.nid = LNET_NID_ANY;
- peerid.pid = LNET_PID_ANY;
+ rc = ksocknal_send_hello(ni, conn, &peerid.nid, hello);
+ if (rc != 0)
+ goto failed_1;
+ } else {
+ peerid.nid = LNET_ANY_NID;
+ peerid.pid = LNET_PID_ANY;
- /* Passive, get protocol from peer_ni */
- conn->ksnc_proto = NULL;
- }
+ /* Passive, get protocol from peer_ni */
+ conn->ksnc_proto = NULL;
+ }
- rc = ksocknal_recv_hello (ni, conn, hello, &peerid, &incarnation);
- if (rc < 0)
- goto failed_1;
+ rc = ksocknal_recv_hello(ni, conn, hello, &peerid, &incarnation);
+ if (rc < 0)
+ goto failed_1;
- LASSERT (rc == 0 || active);
- LASSERT (conn->ksnc_proto != NULL);
- LASSERT (peerid.nid != LNET_NID_ANY);
+ LASSERT(rc == 0 || active);
+ LASSERT(conn->ksnc_proto != NULL);
+ LASSERT(!LNET_NID_IS_ANY(&peerid.nid));
- cpt = lnet_cpt_of_nid(peerid.nid, ni);
+ cpt = lnet_nid2cpt(&peerid.nid, ni);
if (active) {
ksocknal_peer_addref(peer_ni);
write_lock_bh(global_lock);
} else {
- peer_ni = ksocknal_create_peer(ni, peerid);
+ peer_ni = ksocknal_create_peer(ni, &peerid);
if (IS_ERR(peer_ni)) {
rc = PTR_ERR(peer_ni);
goto failed_1;
/* called with a ref on ni, so shutdown can't have started */
LASSERT(atomic_read(&((struct ksock_net *)ni->ni_data)->ksnn_npeers) >= 0);
- peer2 = ksocknal_find_peer_locked(ni, peerid);
+ 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) */
hash_add(ksocknal_data.ksnd_peers,
- &peer_ni->ksnp_list, peerid.nid);
+ &peer_ni->ksnp_list, nidhash(&peerid.nid));
} else {
ksocknal_peer_decref(peer_ni);
peer_ni = peer2;
}
- /* +1 ref for me */
- 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_ni, conn->ksnc_ipaddr)) {
- rc = EALREADY;
- warn = "connection race resolution";
- goto failed_2;
- }
- }
+ /* +1 ref for me */
+ ksocknal_peer_addref(peer_ni);
+ peer_ni->ksnp_accepting++;
+
+ /* Am I already connecting to this guy? Resolve in
+ * favour of higher NID...
+ */
+ if (memcmp(&peerid.nid, &ni->ni_nid, sizeof(peerid.nid)) < 0 &&
+ ksocknal_connecting(peer_ni->ksnp_conn_cb,
+ ((struct sockaddr *) &conn->ksnc_peeraddr))) {
+ rc = EALREADY;
+ warn = "connection race resolution";
+ goto failed_2;
+ }
+ }
- if (peer_ni->ksnp_closing ||
- (active && route->ksnr_deleted)) {
- /* peer_ni/route got closed under me */
- rc = -ESTALE;
- warn = "peer_ni/route removed";
- goto failed_2;
+ if (peer_ni->ksnp_closing ||
+ (active && conn_cb->ksnr_deleted)) {
+ /* peer_ni/conn_cb got closed under me */
+ rc = -ESTALE;
+ warn = "peer_ni/conn_cb removed";
+ goto failed_2;
}
if (peer_ni->ksnp_proto == NULL) {
peer_ni->ksnp_incarnation = incarnation;
}
- 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);
+ 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, NULL, 0);
- peer_ni->ksnp_proto = NULL;
- rc = ESTALE;
- warn = peer_ni->ksnp_incarnation != incarnation ?
- "peer_ni rebooted" :
- "wrong proto version";
- goto failed_2;
- }
+ peer_ni->ksnp_proto = NULL;
+ rc = ESTALE;
+ warn = peer_ni->ksnp_incarnation != incarnation ?
+ "peer_ni rebooted" :
+ "wrong proto version";
+ goto failed_2;
+ }
- switch (rc) {
- default:
- LBUG();
- case 0:
- break;
- case EALREADY:
- warn = "lost conn race";
- goto failed_2;
- case EPROTO:
- warn = "retry with different protocol version";
- goto failed_2;
- }
+ switch (rc) {
+ default:
+ LBUG();
+ case 0:
+ break;
+ case EALREADY:
+ warn = "lost conn race";
+ goto failed_2;
+ case EPROTO:
+ warn = "retry with different protocol version";
+ 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_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_ni
- * realises we're connected. */
- LASSERT (rc == 0);
- if (!active)
- rc = EALREADY;
-
- warn = "duplicate";
- goto failed_2;
- }
- }
-
- /* If the connection created by this route didn't bind to the IP
- * address the route connected to, the connection/route matching
- * code below probably isn't going to work. */
- if (active &&
- route->ksnr_ipaddr != conn->ksnc_ipaddr) {
- CERROR("Route %s %pI4h connected to %pI4h\n",
- libcfs_id2str(peer_ni->ksnp_id),
- &route->ksnr_ipaddr,
- &conn->ksnc_ipaddr);
- }
+ if (!rpc_cmp_addr((struct sockaddr *)&conn->ksnc_peeraddr,
+ (struct sockaddr *)&conn->ksnc_myaddr)) {
+ list_for_each_entry(conn2, &peer_ni->ksnp_conns, ksnc_list) {
+ if (!rpc_cmp_addr(
+ (struct sockaddr *)&conn2->ksnc_peeraddr,
+ (struct sockaddr *)&conn->ksnc_peeraddr) ||
+ !rpc_cmp_addr(
+ (struct sockaddr *)&conn2->ksnc_myaddr,
+ (struct sockaddr *)&conn->ksnc_myaddr) ||
+ conn2->ksnc_type != conn->ksnc_type)
+ continue;
- /* 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);
+ num_dup++;
+ /* If max conns per type is not registered in conn_cb
+ * as ksnr_max_conns, use ni's conns_per_peer
+ */
+ if ((peer_ni->ksnp_conn_cb &&
+ num_dup < peer_ni->ksnp_conn_cb->ksnr_max_conns) ||
+ (!peer_ni->ksnp_conn_cb &&
+ num_dup < ksocknal_get_conns_per_peer(peer_ni)))
+ continue;
- if (route->ksnr_ipaddr != conn->ksnc_ipaddr)
- continue;
+ /* Reply on a passive connection attempt so the peer_ni
+ * realises we're connected.
+ */
+ LASSERT(rc == 0);
+ if (!active)
+ rc = EALREADY;
- ksocknal_associate_route_conn_locked(route, conn);
- break;
+ warn = "duplicate";
+ goto failed_2;
+ }
}
+ /* If the connection created by this route didn't bind to the IP
+ * address the route connected to, the connection/route matching
+ * code below probably isn't going to work.
+ */
+ if (active &&
+ !rpc_cmp_addr((struct sockaddr *)&conn_cb->ksnr_addr,
+ (struct sockaddr *)&conn->ksnc_peeraddr)) {
+ CERROR("Route %s %pIS connected to %pIS\n",
+ libcfs_idstr(&peer_ni->ksnp_id),
+ &conn_cb->ksnr_addr,
+ &conn->ksnc_peeraddr);
+ }
+
+ /* Search for a conn_cb corresponding to the new connection and
+ * create an association. This allows incoming connections created
+ * by conn_cbs in my peer_ni to match my own conn_cb entries so I don't
+ * continually create duplicate conn_cbs.
+ */
+ conn_cb = peer_ni->ksnp_conn_cb;
+
+ if (conn_cb && rpc_cmp_addr((struct sockaddr *)&conn->ksnc_peeraddr,
+ (struct sockaddr *)&conn_cb->ksnr_addr))
+ ksocknal_associate_cb_conn_locked(conn_cb, conn);
conn->ksnc_peer = peer_ni; /* conn takes my ref on peer_ni */
peer_ni->ksnp_last_alive = ktime_get_seconds();
* native scheduler. So use the scheduler's cpt instead.
*/
cpt = sched->kss_cpt;
- sched->kss_nconns++;
- conn->ksnc_scheduler = sched;
+ sched->kss_nconns++;
+ conn->ksnc_scheduler = sched;
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();
+ ksocknal_timeout();
smp_mb(); /* order with adding to peer_ni's conn list */
list_add(&conn->ksnc_list, &peer_ni->ksnp_conns);
ksocknal_new_packet(conn, 0);
- conn->ksnc_zc_capable = ksocknal_lib_zc_capable(conn);
+ conn->ksnc_zc_capable = ksocknal_lib_zc_capable(conn);
/* Take packets blocking for this connection. */
list_for_each_entry_safe(tx, txtmp, &peer_ni->ksnp_tx_queue, tx_list) {
}
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
+ /* 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,
- * (b) normal I/O on the conn is blocked until I setup and call the
- * socket callbacks.
- */
+ * (b) normal I/O on the conn is blocked until I setup and call the
+ * socket callbacks.
+ */
- CDEBUG(D_NET, "New conn %s p %d.x %pI4h -> %pI4h/%d"
+ CDEBUG(D_NET, "New conn %s p %d.x %pIS -> %pISp"
" 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_ni, conn->ksnc_port,
- hello->kshm_ips, hello->kshm_nips);
- } else {
- hello->kshm_nips = ksocknal_select_ips(peer_ni, hello->kshm_ips,
- hello->kshm_nips);
- rc = ksocknal_send_hello(ni, conn, peerid.nid, hello);
- }
+ libcfs_idstr(&peerid), conn->ksnc_proto->pro_version,
+ &conn->ksnc_myaddr, &conn->ksnc_peeraddr,
+ incarnation, cpt);
+
+ if (!active) {
+ hello->kshm_nips = 0;
+ rc = ksocknal_send_hello(ni, conn, &peerid.nid, hello);
+ }
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
- * to send a protocol version response and then close the
- * socket; this ensures the socket only tears down after the
- * response has been sent. */
- if (rc == 0)
- rc = ksocknal_lib_setup_sock(sock);
+ /* setup the socket AFTER I've received hello (it disables
+ * SO_LINGER). I might call back to the acceptor who may want
+ * to send a protocol version response and then close the
+ * socket; this ensures the socket only tears down after the
+ * response has been sent.
+ */
+ if (rc == 0)
+ rc = ksocknal_lib_setup_sock(sock);
write_lock_bh(global_lock);
- /* NB my callbacks block while I hold ksnd_global_lock */
- ksocknal_lib_set_callback(sock, conn);
+ /* NB my callbacks block while I hold ksnd_global_lock */
+ ksocknal_lib_set_callback(sock, conn);
- if (!active)
- peer_ni->ksnp_accepting--;
+ if (!active)
+ peer_ni->ksnp_accepting--;
write_unlock_bh(global_lock);
- if (rc != 0) {
+ if (rc != 0) {
write_lock_bh(global_lock);
- if (!conn->ksnc_closing) {
- /* could be closed by another thread */
- ksocknal_close_conn_locked(conn, rc);
- }
+ 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_write_callback(conn);
- ksocknal_connsock_decref(conn);
- }
+ } else if (ksocknal_connsock_addref(conn) == 0) {
+ /* Allow I/O to proceed. */
+ ksocknal_read_callback(conn);
+ ksocknal_write_callback(conn);
+ ksocknal_connsock_decref(conn);
+ }
- ksocknal_connsock_decref(conn);
- ksocknal_conn_decref(conn);
- return rc;
+ ksocknal_connsock_decref(conn);
+ ksocknal_conn_decref(conn);
+ return rc;
failed_2:
+
if (!peer_ni->ksnp_closing &&
list_empty(&peer_ni->ksnp_conns) &&
- list_empty(&peer_ni->ksnp_routes)) {
+ peer_ni->ksnp_conn_cb == NULL) {
list_splice_init(&peer_ni->ksnp_tx_queue, &zombies);
ksocknal_unlink_peer_locked(peer_ni);
}
write_unlock_bh(global_lock);
- if (warn != NULL) {
- if (rc < 0)
- CERROR("Not creating conn %s type %d: %s\n",
- libcfs_id2str(peerid), conn->ksnc_type, warn);
- else
- CDEBUG(D_NET, "Not creating conn %s type %d: %s\n",
- libcfs_id2str(peerid), conn->ksnc_type, warn);
- }
+ if (warn != NULL) {
+ if (rc < 0)
+ CERROR("Not creating conn %s type %d: %s\n",
+ libcfs_idstr(&peerid), conn->ksnc_type, warn);
+ else
+ CDEBUG(D_NET, "Not creating conn %s type %d: %s\n",
+ libcfs_idstr(&peerid), conn->ksnc_type, warn);
+ }
- if (!active) {
- if (rc > 0) {
+ if (!active) {
+ if (rc > 0) {
/* 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);
- }
+ * ksnc_proto has been set already
+ */
+ conn->ksnc_type = SOCKLND_CONN_NONE;
+ hello->kshm_nips = 0;
+ ksocknal_send_hello(ni, conn, &peerid.nid, hello);
+ }
write_lock_bh(global_lock);
- peer_ni->ksnp_accepting--;
+ peer_ni->ksnp_accepting--;
write_unlock_bh(global_lock);
- }
+ }
/*
* If we get here without an error code, just use -EALREADY.
*/
rc2 = (rc == 0 ? -EALREADY : (rc > 0 ? -rc : rc));
ksocknal_txlist_done(ni, &zombies, rc2);
- ksocknal_peer_decref(peer_ni);
+ ksocknal_peer_decref(peer_ni);
failed_1:
if (hello != NULL)
failed_0:
sock_release(sock);
+
return rc;
}
* connection for the reaper to terminate.
* Caller holds ksnd_global_lock exclusively in irq context */
struct ksock_peer_ni *peer_ni = conn->ksnc_peer;
- struct ksock_route *route;
+ struct ksock_conn_cb *conn_cb;
struct ksock_conn *conn2;
- struct list_head *tmp;
+ int conn_count;
+ int duplicate_count = 0;
LASSERT(peer_ni->ksnp_error == 0);
LASSERT(!conn->ksnc_closing);
/* ksnd_deathrow_conns takes over peer_ni'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);
+ conn_cb = conn->ksnc_conn_cb;
+ if (conn_cb != NULL) {
+ /* dissociate conn from cb... */
+ LASSERT(!conn_cb->ksnr_deleted);
- conn2 = NULL;
- list_for_each(tmp, &peer_ni->ksnp_conns) {
- conn2 = list_entry(tmp, struct ksock_conn, ksnc_list);
-
- if (conn2->ksnc_route == route &&
- conn2->ksnc_type == conn->ksnc_type)
- break;
-
- conn2 = NULL;
+ conn_count = ksocknal_get_conn_count_by_type(conn_cb,
+ conn->ksnc_type);
+ /* connected bit is set only if all connections
+ * of the given type got created
+ */
+ if (conn_count == conn_cb->ksnr_max_conns)
+ LASSERT((conn_cb->ksnr_connected &
+ BIT(conn->ksnc_type)) != 0);
+
+ if (conn_count == 1) {
+ list_for_each_entry(conn2, &peer_ni->ksnp_conns,
+ ksnc_list) {
+ if (conn2->ksnc_conn_cb == conn_cb &&
+ conn2->ksnc_type == conn->ksnc_type)
+ duplicate_count += 1;
+ }
+ if (duplicate_count > 0)
+ CERROR("Found %d duplicate conns type %d\n",
+ duplicate_count,
+ conn->ksnc_type);
}
- if (conn2 == NULL)
- route->ksnr_connected &= ~(1 << conn->ksnc_type);
+ ksocknal_decr_conn_count(conn_cb, conn->ksnc_type);
- conn->ksnc_route = NULL;
+ conn->ksnc_conn_cb = NULL;
- ksocknal_route_decref(route); /* drop conn's ref on route */
+ /* drop conn's ref on conn_cb */
+ ksocknal_conn_cb_decref(conn_cb);
}
if (list_empty(&peer_ni->ksnp_conns)) {
/* stash last conn close reason */
peer_ni->ksnp_error = error;
- if (list_empty(&peer_ni->ksnp_routes)) {
+ if (peer_ni->ksnp_conn_cb == NULL) {
/* I've just closed last conn belonging to a
- * peer_ni with no routes to it */
+ * peer_ni with no connections to it
+ */
ksocknal_unlink_peer_locked(peer_ni);
}
}
void
ksocknal_peer_failed(struct ksock_peer_ni *peer_ni)
{
- int notify = 0;
+ bool notify = false;
time64_t last_alive = 0;
/* There has been a connection failure or comms error; but I'll only
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;
+ !ksocknal_find_connecting_conn_cb_locked(peer_ni)) {
+ notify = true;
last_alive = peer_ni->ksnp_last_alive;
}
read_unlock(&ksocknal_data.ksnd_global_lock);
if (notify)
- lnet_notify(peer_ni->ksnp_ni, peer_ni->ksnp_id.nid,
+ lnet_notify(peer_ni->ksnp_ni,
+ lnet_nid_to_nid4(&peer_ni->ksnp_id.nid),
false, false, last_alive);
}
spin_lock(&peer_ni->ksnp_lock);
- list_for_each_entry_safe(tx, tmp, &peer_ni->ksnp_zc_req_list, tx_zc_list) {
+ list_for_each_entry_safe(tx, tmp, &peer_ni->ksnp_zc_req_list,
+ tx_zc_list) {
if (tx->tx_conn != conn)
continue;
spin_unlock(&peer_ni->ksnp_lock);
- while (!list_empty(&zlist)) {
- tx = list_entry(zlist.next, struct ksock_tx, tx_zc_list);
-
+ while ((tx = list_first_entry_or_null(&zlist, struct ksock_tx,
+ tx_zc_list)) != NULL) {
list_del(&tx->tx_zc_list);
ksocknal_tx_decref(tx);
}
void
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. */
+ /* 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.
+ */
struct ksock_peer_ni *peer_ni = conn->ksnc_peer;
struct ksock_sched *sched = conn->ksnc_scheduler;
- int failed = 0;
+ bool failed = false;
- LASSERT(conn->ksnc_closing);
+ LASSERT(conn->ksnc_closing);
- /* wake up the scheduler to "send" all remaining packets to /dev/null */
+ /* wake up the scheduler to "send" all remaining packets to /dev/null */
spin_lock_bh(&sched->kss_lock);
- /* a closing conn is always ready to tx */
- conn->ksnc_tx_ready = 1;
+ /* a closing conn is always ready to tx */
+ conn->ksnc_tx_ready = 1;
- if (!conn->ksnc_tx_scheduled &&
+ if (!conn->ksnc_tx_scheduled &&
!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 */
+ &sched->kss_tx_conns);
+ conn->ksnc_tx_scheduled = 1;
+ /* extra ref for scheduler */
ksocknal_conn_addref(conn);
- wake_up (&sched->kss_waitq);
+ wake_up(&sched->kss_waitq);
}
spin_unlock_bh(&sched->kss_lock);
/* serialise with callbacks */
write_lock_bh(&ksocknal_data.ksnd_global_lock);
- ksocknal_lib_reset_callback(conn->ksnc_sock, conn);
+ ksocknal_lib_reset_callback(conn->ksnc_sock, conn);
- /* OK, so this conn may not be completely disengaged from its
- * scheduler yet, but it _has_ committed to terminate... */
- conn->ksnc_scheduler->kss_nconns--;
+ /* OK, so this conn may not be completely disengaged from its
+ * scheduler yet, but it _has_ committed to terminate...
+ */
+ conn->ksnc_scheduler->kss_nconns--;
- if (peer_ni->ksnp_error != 0) {
- /* peer_ni's last conn closed in error */
+ if (peer_ni->ksnp_error != 0) {
+ /* peer_ni's last conn closed in error */
LASSERT(list_empty(&peer_ni->ksnp_conns));
- failed = 1;
- peer_ni->ksnp_error = 0; /* avoid multiple notifications */
- }
+ failed = true;
+ peer_ni->ksnp_error = 0; /* avoid multiple notifications */
+ }
write_unlock_bh(&ksocknal_data.ksnd_global_lock);
- if (failed)
- ksocknal_peer_failed(peer_ni);
+ if (failed)
+ 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
- * when the connection was established, this will close the socket
- * immediately, aborting anything buffered in it. Any hung
- * zero-copy transmits will therefore complete in finite time. */
- ksocknal_connsock_decref(conn);
+ /* The socket is closed on the final put; either here, or in
+ * ksocknal_{send,recv}msg(). Since we set up the linger2 option
+ * when the connection was established, this will close the socket
+ * immediately, aborting anything buffered in it. Any hung
+ * zero-copy transmits will therefore complete in finite time.
+ */
+ ksocknal_connsock_decref(conn);
}
void
ksocknal_queue_zombie_conn(struct ksock_conn *conn)
{
/* Queue the conn for the reaper to destroy */
- LASSERT(atomic_read(&conn->ksnc_conn_refcount) == 0);
+ LASSERT(refcount_read(&conn->ksnc_conn_refcount) == 0);
spin_lock_bh(&ksocknal_data.ksnd_reaper_lock);
list_add_tail(&conn->ksnc_list, &ksocknal_data.ksnd_zombie_conns);
time64_t last_rcv;
/* Final coup-de-grace of the reaper */
- CDEBUG (D_NET, "connection %p\n", conn);
-
- 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);
+ CDEBUG(D_NET, "connection %p\n", conn);
+
+ LASSERT(refcount_read(&conn->ksnc_conn_refcount) == 0);
+ LASSERT(refcount_read(&conn->ksnc_sock_refcount) == 0);
+ LASSERT(conn->ksnc_sock == NULL);
+ LASSERT(conn->ksnc_conn_cb == 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:
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,
+ ksocknal_timeout();
+ CERROR("Completing partial receive from %s[%d], ip %pISp, with error, wanted: %d, left: %d, last alive is %lld secs ago\n",
+ libcfs_idstr(&conn->ksnc_peer->ksnp_id),
+ conn->ksnc_type,
+ &conn->ksnc_peeraddr,
+ 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 %pI4h:%d, with error, protocol: %d.x.\n",
- libcfs_id2str(conn->ksnc_peer->ksnp_id),
- &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 %pI4h:%d, with error, protocol: %d.x.\n",
- libcfs_id2str(conn->ksnc_peer->ksnp_id),
- &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 %pI4h:%d, with error\n",
- libcfs_id2str(conn->ksnc_peer->ksnp_id),
- &conn->ksnc_ipaddr, conn->ksnc_port);
- break;
- default:
- LBUG ();
- break;
- }
+ case SOCKNAL_RX_LNET_HEADER:
+ if (conn->ksnc_rx_started)
+ CERROR("Incomplete receive of lnet header from %s, ip %pISp, with error, protocol: %d.x.\n",
+ libcfs_idstr(&conn->ksnc_peer->ksnp_id),
+ &conn->ksnc_peeraddr,
+ 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 %pISp, with error, protocol: %d.x.\n",
+ libcfs_idstr(&conn->ksnc_peer->ksnp_id),
+ &conn->ksnc_peeraddr,
+ conn->ksnc_proto->pro_version);
+ break;
+ case SOCKNAL_RX_SLOP:
+ if (conn->ksnc_rx_started)
+ CERROR("Incomplete receive of slops from %s, ip %pISp, with error\n",
+ libcfs_idstr(&conn->ksnc_peer->ksnp_id),
+ &conn->ksnc_peeraddr);
+ break;
+ default:
+ LBUG();
+ break;
+ }
- ksocknal_peer_decref(conn->ksnc_peer);
+ ksocknal_peer_decref(conn->ksnc_peer);
- LIBCFS_FREE (conn, sizeof (*conn));
+ LIBCFS_FREE(conn, sizeof(*conn));
}
int
-ksocknal_close_peer_conns_locked(struct ksock_peer_ni *peer_ni, __u32 ipaddr, int why)
+ksocknal_close_peer_conns_locked(struct ksock_peer_ni *peer_ni,
+ struct sockaddr *addr, int why)
{
struct ksock_conn *conn;
- struct list_head *ctmp;
- struct list_head *cnxt;
+ struct ksock_conn *cnxt;
int count = 0;
- 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) {
- count++;
- ksocknal_close_conn_locked (conn, why);
- }
- }
+ list_for_each_entry_safe(conn, cnxt, &peer_ni->ksnp_conns, ksnc_list) {
+ if (!addr ||
+ rpc_cmp_addr(addr,
+ (struct sockaddr *)&conn->ksnc_peeraddr)) {
+ count++;
+ ksocknal_close_conn_locked(conn, why);
+ }
+ }
- return (count);
+ return count;
}
int
ksocknal_close_conn_and_siblings(struct ksock_conn *conn, int why)
{
struct ksock_peer_ni *peer_ni = conn->ksnc_peer;
- u32 ipaddr = conn->ksnc_ipaddr;
int count;
write_lock_bh(&ksocknal_data.ksnd_global_lock);
- count = ksocknal_close_peer_conns_locked (peer_ni, ipaddr, why);
+ count = ksocknal_close_peer_conns_locked(
+ peer_ni, (struct sockaddr *)&conn->ksnc_peeraddr, why);
write_unlock_bh(&ksocknal_data.ksnd_global_lock);
- return (count);
+ return count;
}
int
-ksocknal_close_matching_conns(struct lnet_process_id id, __u32 ipaddr)
+ksocknal_close_matching_conns(struct lnet_processid *id, __u32 ipaddr)
{
struct ksock_peer_ni *peer_ni;
struct hlist_node *pnxt;
int hi;
int i;
int count = 0;
+ struct sockaddr_in sa = {.sin_family = AF_INET};
write_lock_bh(&ksocknal_data.ksnd_global_lock);
- if (id.nid != LNET_NID_ANY) {
- lo = hash_min(id.nid, HASH_BITS(ksocknal_data.ksnd_peers));
+ if (!LNET_NID_IS_ANY(&id->nid)) {
+ lo = hash_min(nidhash(&id->nid),
+ HASH_BITS(ksocknal_data.ksnd_peers));
hi = lo;
} else {
lo = 0;
hi = HASH_SIZE(ksocknal_data.ksnd_peers) - 1;
}
+ sa.sin_addr.s_addr = htonl(ipaddr);
for (i = lo; i <= hi; i++) {
hlist_for_each_entry_safe(peer_ni, pnxt,
&ksocknal_data.ksnd_peers[i],
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)))
+ if (!((LNET_NID_IS_ANY(&id->nid) ||
+ nid_same(&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_ni,
- ipaddr, 0);
+ count += ksocknal_close_peer_conns_locked(
+ peer_ni,
+ ipaddr ? (struct sockaddr *)&sa : NULL, 0);
}
}
write_unlock_bh(&ksocknal_data.ksnd_global_lock);
/* wildcards always succeed */
- if (id.nid == LNET_NID_ANY || id.pid == LNET_PID_ANY || ipaddr == 0)
+ if (LNET_NID_IS_ANY(&id->nid) || id->pid == LNET_PID_ANY ||
+ ipaddr == 0)
return 0;
return (count == 0 ? -ENOENT : 0);
}
void
-ksocknal_notify_gw_down(lnet_nid_t gw_nid)
+ksocknal_notify_gw_down(struct lnet_nid *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,
+ struct lnet_processid id = {
.pid = LNET_PID_ANY,
+ .nid = *gw_nid,
};
- CDEBUG(D_NET, "gw %s down\n", libcfs_nid2str(gw_nid));
+ CDEBUG(D_NET, "gw %s down\n", libcfs_nidstr(gw_nid));
/* If the gateway crashed, close all open connections... */
- ksocknal_close_matching_conns(id, 0);
+ ksocknal_close_matching_conns(&id, 0);
return;
/* We can only establish new connections
- * if we have autroutes, and these connect on demand. */
+ * if we have autroutes, and these connect on demand.
+ */
}
static void
{
int index;
int i;
- struct list_head *tmp;
struct ksock_conn *conn;
for (index = 0; ; index++) {
i = 0;
conn = NULL;
- list_for_each(tmp, &peer_ni->ksnp_conns) {
+ list_for_each_entry(conn, &peer_ni->ksnp_conns, ksnc_list) {
if (i++ == index) {
- conn = list_entry(tmp, struct ksock_conn,
- ksnc_list);
ksocknal_conn_addref(conn);
break;
}
read_unlock(&ksocknal_data.ksnd_global_lock);
- if (conn == NULL)
+ if (i <= index)
break;
ksocknal_lib_push_conn (conn);
}
static int
-ksocknal_push(struct lnet_ni *ni, struct lnet_process_id id)
+ksocknal_push(struct lnet_ni *ni, struct lnet_processid *id)
{
int lo;
int hi;
int bkt;
int rc = -ENOENT;
- if (id.nid != LNET_NID_ANY) {
- lo = hash_min(id.nid, HASH_BITS(ksocknal_data.ksnd_peers));
+ if (!LNET_NID_IS_ANY(&id->nid)) {
+ lo = hash_min(nidhash(&id->nid),
+ HASH_BITS(ksocknal_data.ksnd_peers));
hi = lo;
} else {
lo = 0;
hlist_for_each_entry(peer_ni,
&ksocknal_data.ksnd_peers[bkt],
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)))
+ if (!((LNET_NID_IS_ANY(&id->nid) ||
+ nid_same(&id->nid,
+ &peer_ni->ksnp_id.nid)) &&
+ (id->pid == LNET_PID_ANY ||
+ id->pid == peer_ni->ksnp_id.pid)))
continue;
if (i++ == peer_off) {
return rc;
}
-static int
-ksocknal_add_interface(struct lnet_ni *ni, __u32 ipaddress, __u32 netmask)
-{
- struct ksock_net *net = ni->ni_data;
- struct ksock_interface *iface;
- int rc;
- int i;
- int j;
- 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_index = ksocknal_ip2index(ipaddress, ni);
- iface->ksni_ipaddr = ipaddress;
- iface->ksni_netmask = netmask;
- iface->ksni_nroutes = 0;
- iface->ksni_npeers = 0;
-
- hash_for_each(ksocknal_data.ksnd_peers, i, 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_myiface ==
- iface->ksni_index)
- 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;
-}
-
-static void
-ksocknal_peer_del_interface_locked(struct ksock_peer_ni *peer_ni,
- __u32 ipaddr, int index)
-{
- 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_ni->ksnp_routes) {
- route = list_entry(tmp, struct ksock_route, ksnr_list);
-
- if (route->ksnr_myiface != index)
- continue;
-
- if (route->ksnr_share_count != 0) {
- /* Manually created; keep, but unbind */
- route->ksnr_myiface = -1;
- } else {
- ksocknal_del_route_locked(route);
- }
- }
-
- 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);
- }
-}
-
-static int
-ksocknal_del_interface(struct lnet_ni *ni, __u32 ipaddress)
-{
- struct ksock_net *net = ni->ni_data;
- int rc = -ENOENT;
- struct hlist_node *nxt;
- struct ksock_peer_ni *peer_ni;
- u32 this_ip;
- int index;
- int i;
- int j;
-
- index = ksocknal_ip2index(ipaddress, ni);
-
- write_lock_bh(&ksocknal_data.ksnd_global_lock);
-
- for (i = 0; i < net->ksnn_ninterfaces; i++) {
- this_ip = net->ksnn_interfaces[i].ksni_ipaddr;
-
- if (!(ipaddress == 0 ||
- ipaddress == this_ip))
- continue;
-
- rc = 0;
-
- for (j = i+1; j < net->ksnn_ninterfaces; j++)
- net->ksnn_interfaces[j-1] =
- net->ksnn_interfaces[j];
-
- net->ksnn_ninterfaces--;
-
- hash_for_each_safe(ksocknal_data.ksnd_peers, j,
- nxt, peer_ni, ksnp_list) {
- if (peer_ni->ksnp_ni != ni)
- continue;
-
- ksocknal_peer_del_interface_locked(peer_ni,
- this_ip, index);
- }
- }
-
- write_unlock_bh(&ksocknal_data.ksnd_global_lock);
-
- return rc;
-}
-
int
ksocknal_ctl(struct lnet_ni *ni, unsigned int cmd, void *arg)
{
- struct lnet_process_id id = {0};
- struct libcfs_ioctl_data *data = arg;
- int rc;
+ struct lnet_processid id = {};
+ struct libcfs_ioctl_data *data = arg;
+ int rc;
- switch(cmd) {
- case IOC_LIBCFS_GET_INTERFACE: {
+ switch(cmd) {
+ case IOC_LIBCFS_GET_INTERFACE: {
struct ksock_net *net = ni->ni_data;
struct ksock_interface *iface;
+ struct sockaddr_in *sa;
read_lock(&ksocknal_data.ksnd_global_lock);
- if (data->ioc_count >= (__u32)net->ksnn_ninterfaces) {
- rc = -ENOENT;
- } else {
- rc = 0;
- iface = &net->ksnn_interfaces[data->ioc_count];
-
- data->ioc_u32[0] = iface->ksni_ipaddr;
- data->ioc_u32[1] = iface->ksni_netmask;
- data->ioc_u32[2] = iface->ksni_npeers;
- data->ioc_u32[3] = iface->ksni_nroutes;
- }
+ if (data->ioc_count >= 1) {
+ rc = -ENOENT;
+ } else {
+ rc = 0;
+ iface = &net->ksnn_interface;
+
+ sa = (void *)&iface->ksni_addr;
+ if (sa->sin_family == AF_INET)
+ data->ioc_u32[0] = ntohl(sa->sin_addr.s_addr);
+ else
+ data->ioc_u32[0] = 0xFFFFFFFF;
+ data->ioc_u32[1] = iface->ksni_netmask;
+ data->ioc_u32[2] = iface->ksni_npeers;
+ data->ioc_u32[3] = iface->ksni_nroutes;
+ }
read_unlock(&ksocknal_data.ksnd_global_lock);
- return rc;
+ return rc;
}
- case IOC_LIBCFS_ADD_INTERFACE:
- return ksocknal_add_interface(ni,
- data->ioc_u32[0], /* IP address */
- data->ioc_u32[1]); /* net mask */
-
- case IOC_LIBCFS_DEL_INTERFACE:
- return ksocknal_del_interface(ni,
- data->ioc_u32[0]); /* IP address */
-
- case IOC_LIBCFS_GET_PEER: {
- __u32 myip = 0;
- __u32 ip = 0;
- int port = 0;
- int conn_count = 0;
- int share_count = 0;
-
- rc = ksocknal_get_peer_info(ni, data->ioc_count,
- &id, &myip, &ip, &port,
- &conn_count, &share_count);
- if (rc != 0)
- return rc;
+ case IOC_LIBCFS_GET_PEER: {
+ __u32 myip = 0;
+ __u32 ip = 0;
+ int port = 0;
+ int conn_count = 0;
+ int share_count = 0;
- data->ioc_nid = id.nid;
- data->ioc_count = share_count;
- data->ioc_u32[0] = ip;
- data->ioc_u32[1] = port;
- data->ioc_u32[2] = myip;
- data->ioc_u32[3] = conn_count;
- data->ioc_u32[4] = id.pid;
- return 0;
- }
+ rc = ksocknal_get_peer_info(ni, data->ioc_count,
+ &id, &myip, &ip, &port,
+ &conn_count, &share_count);
+ if (rc != 0)
+ return rc;
+ if (!nid_is_nid4(&id.nid))
+ return -EINVAL;
+ data->ioc_nid = lnet_nid_to_nid4(&id.nid);
+ data->ioc_count = share_count;
+ data->ioc_u32[0] = ip;
+ data->ioc_u32[1] = port;
+ data->ioc_u32[2] = myip;
+ data->ioc_u32[3] = conn_count;
+ data->ioc_u32[4] = id.pid;
+ return 0;
+ }
- case IOC_LIBCFS_ADD_PEER:
- id.nid = data->ioc_nid;
- id.pid = LNET_PID_LUSTRE;
- return ksocknal_add_peer (ni, id,
- data->ioc_u32[0], /* IP */
- data->ioc_u32[1]); /* port */
+ case IOC_LIBCFS_ADD_PEER: {
+ struct sockaddr_in sa = {.sin_family = AF_INET};
- case IOC_LIBCFS_DEL_PEER:
- id.nid = data->ioc_nid;
- id.pid = LNET_PID_ANY;
- return ksocknal_del_peer (ni, id,
- data->ioc_u32[0]); /* IP */
+ id.pid = LNET_PID_LUSTRE;
+ lnet_nid4_to_nid(data->ioc_nid, &id.nid);
+ sa.sin_addr.s_addr = htonl(data->ioc_u32[0]);
+ sa.sin_port = htons(data->ioc_u32[1]);
+ return ksocknal_add_peer(ni, &id, (struct sockaddr *)&sa);
+ }
+ case IOC_LIBCFS_DEL_PEER:
+ lnet_nid4_to_nid(data->ioc_nid, &id.nid);
+ id.pid = LNET_PID_ANY;
+ return ksocknal_del_peer(ni, &id);
case IOC_LIBCFS_GET_CONN: {
int txmem;
int rxmem;
int nagle;
struct ksock_conn *conn = ksocknal_get_conn_by_idx(ni, data->ioc_count);
+ struct sockaddr_in *psa = (void *)&conn->ksnc_peeraddr;
+ struct sockaddr_in *mysa = (void *)&conn->ksnc_myaddr;
if (conn == NULL)
return -ENOENT;
ksocknal_lib_get_conn_tunables(conn, &txmem, &rxmem, &nagle);
- data->ioc_count = txmem;
- data->ioc_nid = conn->ksnc_peer->ksnp_id.nid;
- data->ioc_flags = nagle;
- data->ioc_u32[0] = conn->ksnc_ipaddr;
- data->ioc_u32[1] = conn->ksnc_port;
- data->ioc_u32[2] = conn->ksnc_myipaddr;
- data->ioc_u32[3] = conn->ksnc_type;
+ data->ioc_count = txmem;
+ data->ioc_nid = lnet_nid_to_nid4(&conn->ksnc_peer->ksnp_id.nid);
+ data->ioc_flags = nagle;
+ if (psa->sin_family == AF_INET)
+ data->ioc_u32[0] = ntohl(psa->sin_addr.s_addr);
+ else
+ data->ioc_u32[0] = 0xFFFFFFFF;
+ data->ioc_u32[1] = rpc_get_port((struct sockaddr *)
+ &conn->ksnc_peeraddr);
+ if (mysa->sin_family == AF_INET)
+ data->ioc_u32[2] = ntohl(mysa->sin_addr.s_addr);
+ else
+ data->ioc_u32[2] = 0xFFFFFFFF;
+ data->ioc_u32[3] = conn->ksnc_type;
data->ioc_u32[4] = conn->ksnc_scheduler->kss_cpt;
data->ioc_u32[5] = rxmem;
data->ioc_u32[6] = conn->ksnc_peer->ksnp_id.pid;
return 0;
}
- case IOC_LIBCFS_CLOSE_CONNECTION:
- id.nid = data->ioc_nid;
- id.pid = LNET_PID_ANY;
- return ksocknal_close_matching_conns (id,
- data->ioc_u32[0]);
-
- case IOC_LIBCFS_REGISTER_MYNID:
- /* Ignore if this is a noop */
- if (data->ioc_nid == ni->ni_nid)
- return 0;
-
- CERROR("obsolete IOC_LIBCFS_REGISTER_MYNID: %s(%s)\n",
- libcfs_nid2str(data->ioc_nid),
- libcfs_nid2str(ni->ni_nid));
- return -EINVAL;
-
- case IOC_LIBCFS_PUSH_CONNECTION:
- id.nid = data->ioc_nid;
- id.pid = LNET_PID_ANY;
- return ksocknal_push(ni, id);
-
- default:
- return -EINVAL;
- }
- /* not reached */
+ case IOC_LIBCFS_CLOSE_CONNECTION:
+ lnet_nid4_to_nid(data->ioc_nid, &id.nid);
+ id.pid = LNET_PID_ANY;
+ return ksocknal_close_matching_conns(&id,
+ data->ioc_u32[0]);
+
+ case IOC_LIBCFS_REGISTER_MYNID:
+ /* Ignore if this is a noop */
+ if (nid_is_nid4(&ni->ni_nid) &&
+ data->ioc_nid == lnet_nid_to_nid4(&ni->ni_nid))
+ return 0;
+
+ CERROR("obsolete IOC_LIBCFS_REGISTER_MYNID: %s(%s)\n",
+ libcfs_nid2str(data->ioc_nid),
+ libcfs_nidstr(&ni->ni_nid));
+ return -EINVAL;
+
+ case IOC_LIBCFS_PUSH_CONNECTION:
+ lnet_nid4_to_nid(data->ioc_nid, &id.nid);
+ id.pid = LNET_PID_ANY;
+ return ksocknal_push(ni, &id);
+
+ default:
+ return -EINVAL;
+ }
+ /* not reached */
}
static void
list_splice_init(&ksocknal_data.ksnd_idle_noop_txs, &zlist);
spin_unlock(&ksocknal_data.ksnd_tx_lock);
- while (!list_empty(&zlist)) {
- tx = list_entry(zlist.next, struct ksock_tx, tx_list);
+ while ((tx = list_first_entry_or_null(&zlist, struct ksock_tx,
+ tx_list)) != NULL) {
list_del(&tx->tx_list);
LIBCFS_FREE(tx, tx->tx_desc_size);
}
}
}
+static int ksocknal_get_link_status(struct net_device *dev)
+{
+ int ret = -1;
+
+ LASSERT(dev);
+
+ if (!netif_running(dev)) {
+ ret = 0;
+ CDEBUG(D_NET, "device not running\n");
+ }
+ /* Some devices may not be providing link settings */
+ else if (dev->ethtool_ops->get_link) {
+ ret = dev->ethtool_ops->get_link(dev);
+ CDEBUG(D_NET, "get_link returns %u\n", ret);
+ }
+
+ return ret;
+}
+
+static int
+ksocknal_handle_link_state_change(struct net_device *dev,
+ unsigned char operstate)
+{
+ struct lnet_ni *ni = NULL;
+ struct ksock_net *net;
+ struct ksock_net *cnxt;
+ int ifindex;
+ unsigned char link_down = !(operstate == IF_OPER_UP);
+ struct in_device *in_dev;
+ bool found_ip = false;
+ struct ksock_interface *ksi = NULL;
+ struct sockaddr_in *sa;
+ DECLARE_CONST_IN_IFADDR(ifa);
+
+ ifindex = dev->ifindex;
+
+ if (!ksocknal_data.ksnd_nnets)
+ goto out;
+
+ list_for_each_entry_safe(net, cnxt, &ksocknal_data.ksnd_nets,
+ ksnn_list) {
+
+ ksi = &net->ksnn_interface;
+ sa = (void *)&ksi->ksni_addr;
+ found_ip = false;
+
+ if (ksi->ksni_index != ifindex ||
+ strcmp(ksi->ksni_name, dev->name))
+ continue;
+
+ ni = net->ksnn_ni;
+
+ in_dev = __in_dev_get_rtnl(dev);
+ if (!in_dev) {
+ CDEBUG(D_NET, "Interface %s has no IPv4 status.\n",
+ dev->name);
+ CDEBUG(D_NET, "set link fatal state to 1\n");
+ atomic_set(&ni->ni_fatal_error_on, 1);
+ continue;
+ }
+ in_dev_for_each_ifa_rtnl(ifa, in_dev) {
+ if (sa->sin_addr.s_addr == ifa->ifa_local)
+ found_ip = true;
+ }
+ endfor_ifa(in_dev);
+
+ if (!found_ip) {
+ CDEBUG(D_NET, "Interface %s has no matching ip\n",
+ dev->name);
+ CDEBUG(D_NET, "set link fatal state to 1\n");
+ atomic_set(&ni->ni_fatal_error_on, 1);
+ continue;
+ }
+
+ if (link_down) {
+ CDEBUG(D_NET, "set link fatal state to 1\n");
+ atomic_set(&ni->ni_fatal_error_on, link_down);
+ } else {
+ CDEBUG(D_NET, "set link fatal state to %u\n",
+ (ksocknal_get_link_status(dev) == 0));
+ atomic_set(&ni->ni_fatal_error_on,
+ (ksocknal_get_link_status(dev) == 0));
+ }
+ }
+out:
+ return 0;
+}
+
+
+static int
+ksocknal_handle_inetaddr_change(struct in_ifaddr *ifa, unsigned long event)
+{
+ struct lnet_ni *ni;
+ struct ksock_net *net;
+ struct ksock_net *cnxt;
+ struct net_device *event_netdev = ifa->ifa_dev->dev;
+ int ifindex;
+ struct ksock_interface *ksi = NULL;
+ struct sockaddr_in *sa;
+
+ if (!ksocknal_data.ksnd_nnets)
+ goto out;
+
+ ifindex = event_netdev->ifindex;
+
+ list_for_each_entry_safe(net, cnxt, &ksocknal_data.ksnd_nets,
+ ksnn_list) {
+
+ ksi = &net->ksnn_interface;
+ sa = (void *)&ksi->ksni_addr;
+
+ if (ksi->ksni_index != ifindex ||
+ strcmp(ksi->ksni_name, event_netdev->name))
+ continue;
+
+ if (sa->sin_addr.s_addr == ifa->ifa_local) {
+ CDEBUG(D_NET, "set link fatal state to %u\n",
+ (event == NETDEV_DOWN));
+ ni = net->ksnn_ni;
+ atomic_set(&ni->ni_fatal_error_on,
+ (event == NETDEV_DOWN));
+ }
+ }
+out:
+ return 0;
+}
+
+/************************************
+ * Net device notifier event handler
+ ************************************/
+static int ksocknal_device_event(struct notifier_block *unused,
+ unsigned long event, void *ptr)
+{
+ struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+ unsigned char operstate;
+
+ operstate = dev->operstate;
+
+ CDEBUG(D_NET, "devevent: status=%ld, iface=%s ifindex %d state %u\n",
+ event, dev->name, dev->ifindex, operstate);
+
+ switch (event) {
+ case NETDEV_UP:
+ case NETDEV_DOWN:
+ case NETDEV_CHANGE:
+ ksocknal_handle_link_state_change(dev, operstate);
+ break;
+ }
+
+ return NOTIFY_OK;
+}
+
+/************************************
+ * Inetaddr notifier event handler
+ ************************************/
+static int ksocknal_inetaddr_event(struct notifier_block *unused,
+ unsigned long event, void *ptr)
+{
+ struct in_ifaddr *ifa = ptr;
+
+ CDEBUG(D_NET, "addrevent: status %ld ip addr %pI4, netmask %pI4.\n",
+ event, &ifa->ifa_address, &ifa->ifa_mask);
+
+ switch (event) {
+ case NETDEV_UP:
+ case NETDEV_DOWN:
+ case NETDEV_CHANGE:
+ ksocknal_handle_inetaddr_change(ifa, event);
+ break;
+
+ }
+ return NOTIFY_OK;
+}
+
+static struct notifier_block ksocknal_dev_notifier_block = {
+ .notifier_call = ksocknal_device_event,
+};
+
+static struct notifier_block ksocknal_inetaddr_notifier_block = {
+ .notifier_call = ksocknal_inetaddr_event,
+};
+
static void
ksocknal_base_shutdown(void)
{
struct ksock_peer_ni *peer_ni;
int i;
- CDEBUG(D_MALLOC, "before NAL cleanup: kmem %d\n",
- atomic_read (&libcfs_kmemory));
+ CDEBUG(D_MALLOC, "before NAL cleanup: kmem %lld\n",
+ libcfs_kmem_read());
LASSERT (ksocknal_data.ksnd_nnets == 0);
+ if (ksocknal_data.ksnd_init == SOCKNAL_INIT_ALL) {
+ unregister_netdevice_notifier(&ksocknal_dev_notifier_block);
+ unregister_inetaddr_notifier(&ksocknal_inetaddr_notifier_block);
+ }
+
switch (ksocknal_data.ksnd_init) {
default:
LASSERT(0);
- /* fallthrough */
+ fallthrough;
case SOCKNAL_INIT_ALL:
case SOCKNAL_INIT_DATA:
/* 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);
+ wake_up(&ksocknal_data.ksnd_reaper_waitq);
if (ksocknal_data.ksnd_schedulers != NULL) {
cfs_percpt_for_each(sched, i,
}
wait_var_event_warning(&ksocknal_data.ksnd_nthreads,
- ksocknal_data.ksnd_nthreads == 0,
+ atomic_read(&ksocknal_data.ksnd_nthreads) == 0,
"waiting for %d threads to terminate\n",
- ksocknal_data.ksnd_nthreads);
+ atomic_read(&ksocknal_data.ksnd_nthreads));
ksocknal_free_buffers();
break;
}
- CDEBUG(D_MALLOC, "after NAL cleanup: kmem %d\n",
- atomic_read (&libcfs_kmemory));
+ CDEBUG(D_MALLOC, "after NAL cleanup: kmem %lld\n",
+ libcfs_kmem_read());
module_put(THIS_MODULE);
}
}
for (i = 0; i < *ksocknal_tunables.ksnd_nconnds; i++) {
- 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);
+ (void *)((uintptr_t)i),
+ "socknal_cd%02d", i);
if (rc != 0) {
spin_lock_bh(&ksocknal_data.ksnd_connd_lock);
ksocknal_data.ksnd_connd_starting--;
goto failed;
}
+ register_netdevice_notifier(&ksocknal_dev_notifier_block);
+ register_inetaddr_notifier(&ksocknal_inetaddr_notifier_block);
+
/* flag everything initialised */
ksocknal_data.ksnd_init = SOCKNAL_INIT_ALL;
read_lock(&ksocknal_data.ksnd_global_lock);
hash_for_each(ksocknal_data.ksnd_peers, i, peer_ni, ksnp_list) {
- struct ksock_route *route;
+ struct ksock_conn_cb *conn_cb;
struct ksock_conn *conn;
if (peer_ni->ksnp_ni != ni)
continue;
- 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),
+ CWARN("Active peer_ni on shutdown: %s, ref %d, closing %d, accepting %d, err %d, zcookie %llu, txq %d, zc_req %d\n",
+ libcfs_idstr(&peer_ni->ksnp_id),
+ refcount_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_entry(route, &peer_ni->ksnp_routes, 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);
+ conn_cb = peer_ni->ksnp_conn_cb;
+ if (conn_cb) {
+ CWARN("ConnCB: ref %d, schd %d, conn %d, cnted %d, del %d\n",
+ refcount_read(&conn_cb->ksnr_refcount),
+ conn_cb->ksnr_scheduled, conn_cb->ksnr_connecting,
+ conn_cb->ksnr_connected, conn_cb->ksnr_deleted);
}
list_for_each_entry(conn, &peer_ni->ksnp_conns, 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),
+ refcount_read(&conn->ksnc_conn_refcount),
+ refcount_read(&conn->ksnc_sock_refcount),
conn->ksnc_type, conn->ksnc_closing);
}
break;
ksocknal_shutdown(struct lnet_ni *ni)
{
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);
atomic_add(SOCKNAL_SHUTDOWN_BIAS, &net->ksnn_npeers);
/* Delete all peers */
- ksocknal_del_peer(ni, anyid, 0);
+ ksocknal_del_peer(ni, NULL);
/* Wait for all peer_ni state to clean up */
wait_var_event_warning(&net->ksnn_npeers,
atomic_read(&net->ksnn_npeers) -
SOCKNAL_SHUTDOWN_BIAS);
- for (i = 0; i < net->ksnn_ninterfaces; i++) {
- LASSERT(net->ksnn_interfaces[i].ksni_npeers == 0);
- LASSERT(net->ksnn_interfaces[i].ksni_nroutes == 0);
- }
+ LASSERT(net->ksnn_interface.ksni_npeers == 0);
+ LASSERT(net->ksnn_interface.ksni_nroutes == 0);
list_del(&net->ksnn_list);
LIBCFS_FREE(net, sizeof(*net));
ksocknal_search_new_ipif(struct ksock_net *net)
{
int new_ipif = 0;
- int i;
+ char *ifnam = &net->ksnn_interface.ksni_name[0];
+ char *colon = strchr(ifnam, ':');
+ bool found = false;
+ struct ksock_net *tmp;
- 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;
- }
+ if (colon != NULL)
+ *colon = 0;
+
+ list_for_each_entry(tmp, &ksocknal_data.ksnd_nets, ksnn_list) {
+ char *ifnam2 = &tmp->ksnn_interface.ksni_name[0];
+ char *colon2 = strchr(ifnam2, ':');
- new_ipif += !found;
- if (colon != NULL)
- *colon = ':';
+ if (colon2 != NULL)
+ *colon2 = 0;
+
+ found = strcmp(ifnam, ifnam2) == 0;
+ if (colon2 != NULL)
+ *colon2 = ':';
}
+ new_ipif += !found;
+ if (colon != NULL)
+ *colon = ':';
+
return new_ipif;
}
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);
+ rc = ksocknal_thread_start(ksocknal_scheduler, (void *)id,
+ "socknal_sd%02d_%02d",
+ sched->kss_cpt,
+ (int)KSOCK_THREAD_SID(id));
if (rc == 0)
continue;
ksocknal_startup(struct lnet_ni *ni)
{
struct ksock_net *net;
- struct lnet_ioctl_config_lnd_cmn_tunables *net_tunables;
struct ksock_interface *ksi = NULL;
struct lnet_inetdev *ifaces = NULL;
+ struct sockaddr_in *sa;
int i = 0;
int rc;
LASSERT (ni->ni_net->net_lnd == &the_ksocklnd);
-
if (ksocknal_data.ksnd_init == SOCKNAL_INIT_NOTHING) {
rc = ksocknal_base_startup();
if (rc != 0)
return rc;
}
-
LIBCFS_ALLOC(net, sizeof(*net));
if (net == NULL)
goto fail_0;
-
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;
+ ksocknal_tunables_setup(ni);
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];
+ ksi = &net->ksnn_interface;
- /* 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])
+ /* Use the first discovered interface or look in the list */
+ if (ni->ni_interface) {
+ for (i = 0; i < rc; i++)
+ if (strcmp(ifaces[i].li_name, ni->ni_interface) == 0)
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);
+ /* ni_interfaces doesn't contain the interface we want */
+ if (i == rc) {
+ CERROR("ksocklnd: failed to find interface %s\n",
+ ni->ni_interface);
goto fail_1;
}
}
+ ni->ni_dev_cpt = ifaces[i].li_cpt;
+ sa = (void *)&ksi->ksni_addr;
+ memset(sa, 0, sizeof(*sa));
+ sa->sin_family = AF_INET;
+ sa->sin_addr.s_addr = htonl(ifaces[i].li_ipaddr);
+ ksi->ksni_index = ksocknal_ip2index((struct sockaddr *)sa, ni);
+ ksi->ksni_netmask = ifaces[i].li_netmask;
+ strlcpy(ksi->ksni_name, ifaces[i].li_name, sizeof(ksi->ksni_name));
+
/* 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);
+ LASSERT(ksi->ksni_addr.ss_family == AF_INET);
+ ni->ni_nid.nid_addr[0] =
+ ((struct sockaddr_in *)&ksi->ksni_addr)->sin_addr.s_addr;
list_add(&net->ksnn_list, &ksocknal_data.ksnd_nets);
+ net->ksnn_ni = ni;
+ ksocknal_data.ksnd_nnets++;
- ksocknal_data.ksnd_nnets++;
-
- return 0;
+ return 0;
- fail_1:
- LIBCFS_FREE(net, sizeof(*net));
- fail_0:
- if (ksocknal_data.ksnd_nnets == 0)
- ksocknal_base_shutdown();
+fail_1:
+ LIBCFS_FREE(net, sizeof(*net));
+fail_0:
+ if (ksocknal_data.ksnd_nnets == 0)
+ ksocknal_base_shutdown();
- return -ENETDOWN;
+ return -ENETDOWN;
}
-
static void __exit ksocklnd_exit(void)
{
lnet_unregister_lnd(&the_ksocklnd);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff