*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*
* lnet/klnds/socklnd/socklnd.c
*
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 (rpc_cmp_addr((struct sockaddr *)&iface->ksni_addr, addr))
- 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;
}
return ret;
}
-static struct ksock_route *
-ksocknal_create_route(struct sockaddr *addr)
+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);
-
- refcount_set(&route->ksnr_refcount, 1);
- route->ksnr_peer = NULL;
- route->ksnr_retry_interval = 0; /* OK to connect at any time */
- rpc_copy_addr((struct sockaddr *)&route->ksnr_addr, addr);
- rpc_set_port((struct sockaddr *)&route->ksnr_addr, rpc_get_port(addr));
- route->ksnr_myiface = -1;
- 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;
+
+ return conn_cb;
}
void
-ksocknal_destroy_route(struct ksock_route *route)
+ksocknal_destroy_conn_cb(struct ksock_conn_cb *conn_cb)
{
- LASSERT(refcount_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 *
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);
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.
}
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);
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;
- if (route->ksnr_addr.ss_family == AF_INET) {
+ if (conn_cb->ksnr_addr.ss_family == AF_INET) {
struct sockaddr_in *sa =
- (void *)&route->ksnr_addr;
- rc = choose_ipv4_src(
- myip,
- route->ksnr_myiface,
- ntohl(sa->sin_addr.s_addr),
- ni->ni_net_ns);
+ (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 {
*port = 0;
rc = -ENOTSUPP;
}
- *conn_count = route->ksnr_conn_count;
- *share_count = route->ksnr_share_count;
+ *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 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 */
+ 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 >=
+ *ksocknal_tunables.ksnd_conns_per_peer)
+ 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 >=
+ *ksocknal_tunables.ksnd_conns_per_peer)
+ conn_cb->ksnr_connected |= BIT(type);
+ break;
+ case SOCKLND_CONN_ANY:
+ if (conn_cb->ksnr_conn_count >=
+ *ksocknal_tunables.ksnd_conns_per_peer)
+ conn_cb->ksnr_connected |= BIT(type);
+ break;
+ default:
+ LBUG();
+ break;
+
+ }
+
+ CDEBUG(D_NET, "Add conn type %d, ksnr_connected %x conns_per_peer %d\n",
+ type, conn_cb->ksnr_connected, *ksocknal_tunables.ksnd_conns_per_peer);
+}
+
+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((struct sockaddr *)&conn->ksnc_myaddr,
- 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 %pIS to interface %d\n",
libcfs_id2str(peer_ni->ksnp_id),
- &route->ksnr_addr,
+ &conn_cb->ksnr_addr,
conn_iface);
} else {
CDEBUG(D_NET,
"Rebinding %s %pIS from interface %d to %d\n",
libcfs_id2str(peer_ni->ksnp_id),
- &route->ksnr_addr,
- route->ksnr_myiface,
+ &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(net->ksnn_ninterfaces > 0);
-
- /* LASSERT(unique) */
- list_for_each(tmp, &peer_ni->ksnp_routes) {
- route2 = list_entry(tmp, struct ksock_route, ksnr_list);
-
- if (rpc_cmp_addr((struct sockaddr *)&route2->ksnr_addr,
- (struct sockaddr *)&route->ksnr_addr)) {
- CERROR("Duplicate route %s %pI4h\n",
- libcfs_id2str(peer_ni->ksnp_id),
- &route->ksnr_addr);
- 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);
- /* set the route's interface to the current net's interface */
- route->ksnr_myiface = net->ksnn_interfaces[0].ksni_index;
- net->ksnn_interfaces[0].ksni_nroutes++;
+ /* 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++;
- /* peer_ni's routelist takes over my ref on 'route' */
- list_add_tail(&route->ksnr_list, &peer_ni->ksnp_routes);
+ /* peer_ni's route list takes over my ref on 'route' */
+ peer_ni->ksnp_conn_cb = conn_cb;
list_for_each(tmp, &peer_ni->ksnp_conns) {
conn = list_entry(tmp, struct ksock_conn, ksnc_list);
if (!rpc_cmp_addr((struct sockaddr *)&conn->ksnc_peeraddr,
- (struct sockaddr *)&route->ksnr_addr))
+ (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 ksock_conn *cnxt;
- LASSERT(!route->ksnr_deleted);
+ LASSERT(!conn_cb->ksnr_deleted);
/* Close associated conns */
list_for_each_entry_safe(conn, cnxt, &peer_ni->ksnp_conns, ksnc_list) {
- if (conn->ksnc_route != route)
+ 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);
}
}
ksocknal_add_peer(struct lnet_ni *ni, struct lnet_process_id 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)
if (IS_ERR(peer_ni))
return PTR_ERR(peer_ni);
- route = ksocknal_create_route(addr);
- if (route == NULL) {
+ conn_cb = ksocknal_create_conn_cb(addr);
+ if (!conn_cb) {
ksocknal_peer_decref(peer_ni);
- return (-ENOMEM);
+ return -ENOMEM;
}
write_lock_bh(&ksocknal_data.ksnd_global_lock);
hash_add(ksocknal_data.ksnd_peers, &peer_ni->ksnp_list, id.nid);
}
- route2 = NULL;
- list_for_each(tmp, &peer_ni->ksnp_routes) {
- route2 = list_entry(tmp, struct ksock_route, ksnr_list);
-
- if (rpc_cmp_addr(addr, (struct sockaddr *)&route2->ksnr_addr))
- 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++;
- }
+ ksocknal_add_conn_cb_locked(peer_ni, conn_cb);
write_unlock_bh(&ksocknal_data.ksnd_global_lock);
{
struct ksock_conn *conn;
struct ksock_conn *cnxt;
- struct ksock_route *route;
- struct ksock_route *rnxt;
- int nshared;
+ 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_entry_safe(route, rnxt, &peer_ni->ksnp_routes,
- ksnr_list) {
- /* no match */
- if (ip) {
- if (route->ksnr_addr.ss_family != AF_INET)
- continue;
- if (((struct sockaddr_in *)&route->ksnr_addr)
- ->sin_addr.s_addr != htonl(ip))
- continue;
- }
-
- route->ksnr_share_count = 0;
- /* This deletes associated conns too */
- ksocknal_del_route_locked(route);
- }
-
- nshared = 0;
- list_for_each_entry(route, &peer_ni->ksnp_routes, ksnr_list)
- nshared += route->ksnr_share_count;
-
- if (nshared == 0) {
- /* remove everything else if there are no explicit entries
- * left
- */
- list_for_each_entry_safe(route, rnxt, &peer_ni->ksnp_routes,
- ksnr_list) {
- /* we should only be removing auto-entries */
- LASSERT(route->ksnr_share_count == 0);
- ksocknal_del_route_locked(route);
- }
-
- list_for_each_entry_safe(conn, cnxt, &peer_ni->ksnp_conns,
- 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
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);
return sched;
}
-static int
-ksocknal_local_ipvec(struct lnet_ni *ni, __u32 *ipaddrs)
-{
- struct ksock_net *net = ni->ni_data;
- int i, j;
- int nip;
-
- read_lock(&ksocknal_data.ksnd_global_lock);
-
- nip = net->ksnn_ninterfaces;
- LASSERT(nip <= LNET_INTERFACES_NUM);
-
- for (i = 0, j = 0; i < nip; i++)
- if (net->ksnn_interfaces[i].ksni_addr.ss_family == AF_INET) {
- struct sockaddr_in *sa =
- (void *)&net->ksnn_interfaces[i].ksni_addr;
-
- ipaddrs[j] = ntohl(sa->sin_addr.s_addr);
- LASSERT(ipaddrs[j] != 0);
- j += 1;
- }
- nip = j;
-
- read_unlock(&ksocknal_data.ksnd_global_lock);
- /*
- * Only offer interfaces for additional connections if I have
- * more than one.
- */
- return nip < 2 ? 0 : 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;
- struct sockaddr_in *sa;
- __u32 ip;
-
- sa = (struct sockaddr_in *)&iface->ksni_addr;
- LASSERT(sa->sin_family == AF_INET);
- ip = ntohl(sa->sin_addr.s_addr);
-
- for (i = 0; i < nips; i++) {
- if (ips[i] == 0)
- continue;
-
- this_xor = ips[i] ^ ip;
- 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. */
- struct sockaddr_in sa = { .sin_family = AF_INET};
-
- sa.sin_addr.s_addr =
- htonl(peer_ni->ksnp_passive_ips[i]);
- best_iface = ksocknal_ip2iface(peer_ni->ksnp_ni,
- (struct sockaddr *)&sa);
-
- /* peer_ni passive ips are kept up to date */
- LASSERT(best_iface != NULL);
- } else {
- /* choose a new interface */
- struct sockaddr_in *sa;
-
- 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];
- sa = (void *)&iface->ksni_addr;
- if (sa->sin_family != AF_INET)
- continue;
- ip = ntohl(sa->sin_addr.s_addr);
-
- 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++;
- sa = (void *)&best_iface->ksni_addr;
- ip = ntohl(sa->sin_addr.s_addr);
- 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) {
- struct sockaddr_in *sa = (void *)&newroute->ksnr_addr;
-
- memset(sa, 0, sizeof(*sa));
- sa->sin_family = AF_INET;
- sa->sin_addr.s_addr = htonl(peer_ipaddrs[i]);
- } else {
- struct sockaddr_in sa = {.sin_family = AF_INET};
-
- write_unlock_bh(global_lock);
-
- sa.sin_addr.s_addr = htonl(peer_ipaddrs[i]);
- sa.sin_port = htons(port);
- newroute =
- ksocknal_create_route((struct sockaddr *)&sa);
- if (!newroute)
- 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 (rpc_cmp_addr(
- (struct sockaddr *)&route->ksnr_addr,
- (struct sockaddr *)&newroute->ksnr_addr))
- 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++) {
- __u32 iface_ip, route_ip;
-
- 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;
- if (iface->ksni_addr.ss_family != AF_INET)
- continue;
- if (newroute->ksnr_addr.ss_family != AF_INET)
- continue;
-
- iface_ip =
- ntohl(((struct sockaddr_in *)
- &iface->ksni_addr)->sin_addr.s_addr);
- route_ip =
- ntohl(((struct sockaddr_in *)
- &newroute->ksnr_addr)->sin_addr.s_addr);
-
- this_netmatch = (((iface_ip ^ route_ip) &
- 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)
{
}
static int
-ksocknal_connecting(struct ksock_peer_ni *peer_ni, struct sockaddr *sa)
+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 (rpc_cmp_addr((struct sockaddr *)&route->ksnr_addr, sa))
- 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;
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 */
refcount_set(&conn->ksnc_sock_refcount, 2);
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_NID_ANY;
+ 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(peerid.nid != LNET_NID_ANY);
cpt = lnet_cpt_of_nid(peerid.nid, ni);
peer_ni = peer2;
}
- /* +1 ref for me */
- ksocknal_peer_addref(peer_ni);
- peer_ni->ksnp_accepting++;
+ /* +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, ((struct sockaddr *)
- &conn->ksnc_peeraddr))) {
+ 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) {
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 */
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;
+ num_dup++;
+ if (num_dup < *ksocknal_tunables.ksnd_conns_per_peer)
+ continue;
- warn = "duplicate";
- goto failed_2;
- }
- }
+ /* Reply on a passive connection attempt so the peer_ni
+ * realises we're connected.
+ */
+ LASSERT(rc == 0);
+ if (!active)
+ rc = EALREADY;
- /* 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 *)&route->ksnr_addr,
+ 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_id2str(peer_ni->ksnp_id),
- &route->ksnr_addr,
+ &conn_cb->ksnr_addr,
&conn->ksnc_peeraddr);
- }
+ }
- /* Search for a route corresponding to the new connection and
+ /* Search for a conn_cb 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);
+ * 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 (!rpc_cmp_addr((struct sockaddr *)&route->ksnr_addr,
- (struct sockaddr *)&conn->ksnc_peeraddr))
- continue;
-
- ksocknal_associate_route_conn_locked(route, conn);
- break;
- }
+ 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 */
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 %pIS -> %pISp"
" incarnation:%lld sched[%d]\n",
&conn->ksnc_myaddr, &conn->ksnc_peeraddr,
incarnation, cpt);
- if (active) {
- /* additional routes after interface exchange? */
- ksocknal_create_routes(
- peer_ni,
- rpc_get_port((struct sockaddr *)&conn->ksnc_peeraddr),
- 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);
- }
+ 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_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 (!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;
/* 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 & BIT(conn->ksnc_type)) != 0);
+ conn_cb = conn->ksnc_conn_cb;
+ if (conn_cb != NULL) {
+ /* dissociate conn from cb... */
+ LASSERT(!conn_cb->ksnr_deleted);
+
+ /* connected bit is set only if all connections
+ * of the given type got created
+ */
+ if (ksocknal_get_conn_count_by_type(conn_cb, conn->ksnc_type) ==
+ *ksocknal_tunables.ksnd_conns_per_peer)
+ LASSERT((conn_cb->ksnr_connected &
+ BIT(conn->ksnc_type)) != 0);
conn2 = NULL;
list_for_each(tmp, &peer_ni->ksnp_conns) {
conn2 = list_entry(tmp, struct ksock_conn, ksnc_list);
- if (conn2->ksnc_route == route &&
+ if (conn2->ksnc_conn_cb == conn_cb &&
conn2->ksnc_type == conn->ksnc_type)
break;
conn2 = NULL;
}
if (conn2 == NULL)
- route->ksnr_connected &= ~BIT(conn->ksnc_type);
+ conn_cb->ksnr_connected &= ~BIT(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);
}
}
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) {
+ !ksocknal_find_connecting_conn_cb_locked(peer_ni)) {
notify = true;
last_alive = peer_ni->ksnp_last_alive;
}
/* extra ref for scheduler */
ksocknal_conn_addref(conn);
- wake_up (&sched->kss_waitq);
+ wake_up(&sched->kss_waitq);
}
spin_unlock_bh(&sched->kss_lock);
time64_t last_rcv;
/* Final coup-de-grace of the reaper */
- CDEBUG (D_NET, "connection %p\n", conn);
+ 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_route == NULL);
- LASSERT (!conn->ksnc_tx_scheduled);
- LASSERT (!conn->ksnc_rx_scheduled);
+ 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 */
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;
- struct sockaddr_in sa = { .sin_family = AF_INET };
- 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);
-
- sa.sin_addr.s_addr = htonl(ipaddress);
- iface = ksocknal_ip2iface(ni, (struct sockaddr *)&sa);
- 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((struct sockaddr *)&sa,
- ni);
- rpc_copy_addr((struct sockaddr *)&iface->ksni_addr,
- (struct sockaddr *)&sa);
- 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 ksock_route *route;
- struct ksock_route *rnxt;
- struct ksock_conn *conn;
- struct ksock_conn *cnxt;
- 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_entry_safe(route, rnxt, &peer_ni->ksnp_routes,
- 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_entry_safe(conn, cnxt, &peer_ni->ksnp_conns, ksnc_list)
- if (conn->ksnc_route->ksnr_myiface == index)
- 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;
- struct sockaddr_in sa = {.sin_family = AF_INET };
- int index;
- int i;
- int j;
-
- sa.sin_addr.s_addr = htonl(ipaddress);
- index = ksocknal_ip2index((struct sockaddr *)&sa, ni);
-
- write_lock_bh(&ksocknal_data.ksnd_global_lock);
-
- for (i = 0; i < net->ksnn_ninterfaces; i++) {
- struct sockaddr_in *sa =
- (void *)&net->ksnn_interfaces[i].ksni_addr;
-
- if (sa->sin_family != AF_INET)
- continue;
- this_ip = ntohl(sa->sin_addr.s_addr);
-
- 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 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];
+ 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)
}
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;
/* 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,
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)
!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",
- refcount_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) {
.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_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, ':');
- bool found = false;
- 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;
}
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 (rc < 0)
goto fail_1;
- if (!ni->ni_interfaces[0]) {
- struct sockaddr_in *sa;
-
- ksi = &net->ksnn_interfaces[0];
- sa = (void *)&ksi->ksni_addr;
-
- /* Use the first discovered interface */
- net->ksnn_ninterfaces = 1;
- ni->ni_dev_cpt = ifaces[0].li_cpt;
- memset(sa, 0, sizeof(*sa));
- sa->sin_family = AF_INET;
- sa->sin_addr.s_addr = htonl(ifaces[0].li_ipaddr);
- ksi->ksni_index = ksocknal_ip2index((struct sockaddr *)sa, ni);
- 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;
+ ksi = &net->ksnn_interface;
- 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++) {
- struct sockaddr_in *sa;
-
- if (strcmp(ifaces[j].li_name,
- ni->ni_interfaces[i]) != 0)
- continue;
-
- ksi =
- &net->ksnn_interfaces[net->ksnn_ninterfaces];
- sa = (void *)&ksi->ksni_addr;
- ni->ni_dev_cpt = ifaces[j].li_cpt;
- memset(sa, 0, sizeof(*sa));
- sa->sin_family = AF_INET;
- sa->sin_addr.s_addr =
- htonl(ifaces[j].li_ipaddr);
- ksi->ksni_index = ksocknal_ip2index(
- (struct sockaddr *)sa, ni);
- 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)
ntohl(((struct sockaddr_in *)
&ksi->ksni_addr)->sin_addr.s_addr));
list_add(&net->ksnn_list, &ksocknal_data.ksnd_nets);
-
ksocknal_data.ksnd_nnets++;
return 0;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff