#include "netdev-provider.h"
#include "ofpbuf.h"
#include "packets.h"
+#include "poll-loop.h"
#include "route-table.h"
#include "shash.h"
#include "socket-util.h"
#define DEFAULT_TTL 64
-struct netdev_dev_vport {
- struct netdev_dev netdev_dev;
- unsigned int change_seq;
+struct netdev_vport {
+ struct netdev up;
+
+ /* Protects all members below. */
+ struct ovs_mutex mutex;
+
uint8_t etheraddr[ETH_ADDR_LEN];
struct netdev_stats stats;
/* Tunnels. */
struct netdev_tunnel_config tnl_cfg;
+ char egress_iface[IFNAMSIZ];
+ bool carrier_status;
/* Patch Ports. */
char *peer;
struct netdev_class netdev_class;
};
-static int netdev_vport_create(const struct netdev_class *, const char *,
- struct netdev_dev **);
-static int get_patch_config(struct netdev_dev *, struct smap *args);
-static int get_tunnel_config(struct netdev_dev *, struct smap *args);
-static void netdev_vport_poll_notify(struct netdev_dev_vport *);
+/* Last read of the route-table's change number. */
+static uint64_t rt_change_seqno;
+
+static int netdev_vport_construct(struct netdev *);
+static int get_patch_config(const struct netdev *netdev, struct smap *args);
+static int get_tunnel_config(const struct netdev *, struct smap *args);
+static bool tunnel_check_status_change__(struct netdev_vport *);
static bool
is_vport_class(const struct netdev_class *class)
{
- return class->create == netdev_vport_create;
+ return class->construct == netdev_vport_construct;
+}
+
+bool
+netdev_vport_is_vport_class(const struct netdev_class *class)
+{
+ return is_vport_class(class);
}
static const struct vport_class *
return CONTAINER_OF(class, struct vport_class, netdev_class);
}
-static struct netdev_dev_vport *
-netdev_dev_vport_cast(const struct netdev_dev *netdev_dev)
+static struct netdev_vport *
+netdev_vport_cast(const struct netdev *netdev)
{
- ovs_assert(is_vport_class(netdev_dev_get_class(netdev_dev)));
- return CONTAINER_OF(netdev_dev, struct netdev_dev_vport, netdev_dev);
-}
-
-static struct netdev_dev_vport *
-netdev_vport_get_dev(const struct netdev *netdev)
-{
- return netdev_dev_vport_cast(netdev_get_dev(netdev));
+ ovs_assert(is_vport_class(netdev_get_class(netdev)));
+ return CONTAINER_OF(netdev, struct netdev_vport, up);
}
static const struct netdev_tunnel_config *
-get_netdev_tunnel_config(const struct netdev_dev *netdev_dev)
+get_netdev_tunnel_config(const struct netdev *netdev)
{
- return &netdev_dev_vport_cast(netdev_dev)->tnl_cfg;
+ return &netdev_vport_cast(netdev)->tnl_cfg;
}
bool
netdev_vport_is_patch(const struct netdev *netdev)
{
- const struct netdev_dev *dev = netdev_get_dev(netdev);
- const struct netdev_class *class = netdev_dev_get_class(dev);
+ const struct netdev_class *class = netdev_get_class(netdev);
return class->get_config == get_patch_config;
}
+bool
+netdev_vport_is_layer3(const struct netdev *dev)
+{
+ const char *type = netdev_get_type(dev);
+
+ return (!strcmp("lisp", type));
+}
+
static bool
-netdev_vport_needs_dst_port(const struct netdev_dev *dev)
+netdev_vport_needs_dst_port(const struct netdev *dev)
{
- const struct netdev_class *class = netdev_dev_get_class(dev);
- const char *type = netdev_dev_get_type(dev);
+ const struct netdev_class *class = netdev_get_class(dev);
+ const char *type = netdev_get_type(dev);
return (class->get_config == get_tunnel_config &&
(!strcmp("vxlan", type) || !strcmp("lisp", type)));
}
const char *
-netdev_vport_get_dpif_port(const struct netdev *netdev)
+netdev_vport_class_get_dpif_port(const struct netdev_class *class)
{
- const struct netdev_dev *dev = netdev_get_dev(netdev);
- const struct netdev_class *class = netdev_dev_get_class(dev);
- const char *dpif_port;
+ return is_vport_class(class) ? vport_class_cast(class)->dpif_port : NULL;
+}
- if (netdev_vport_needs_dst_port(dev)) {
- const struct netdev_dev_vport *vport = netdev_vport_get_dev(netdev);
- const char *type = netdev_dev_get_type(dev);
- static char dpif_port_combined[IFNAMSIZ];
+const char *
+netdev_vport_get_dpif_port(const struct netdev *netdev,
+ char namebuf[], size_t bufsize)
+{
+ if (netdev_vport_needs_dst_port(netdev)) {
+ const struct netdev_vport *vport = netdev_vport_cast(netdev);
+ const char *type = netdev_get_type(netdev);
/*
* Note: IFNAMSIZ is 16 bytes long. The maximum length of a VXLAN
* assert here on the size of strlen(type) in case that changes
* in the future.
*/
+ BUILD_ASSERT(NETDEV_VPORT_NAME_BUFSIZE >= IFNAMSIZ);
ovs_assert(strlen(type) + 10 < IFNAMSIZ);
- snprintf(dpif_port_combined, IFNAMSIZ, "%s_sys_%d", type,
+ snprintf(namebuf, bufsize, "%s_sys_%d", type,
ntohs(vport->tnl_cfg.dst_port));
- return dpif_port_combined;
+ return namebuf;
} else {
- dpif_port = (is_vport_class(class)
- ? vport_class_cast(class)->dpif_port
- : NULL);
+ const struct netdev_class *class = netdev_get_class(netdev);
+ const char *dpif_port = netdev_vport_class_get_dpif_port(class);
+ return dpif_port ? dpif_port : netdev_get_name(netdev);
}
+}
+
+char *
+netdev_vport_get_dpif_port_strdup(const struct netdev *netdev)
+{
+ char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
- return dpif_port ? dpif_port : netdev_get_name(netdev);
+ return xstrdup(netdev_vport_get_dpif_port(netdev, namebuf,
+ sizeof namebuf));
+}
+
+/* Whenever the route-table change number is incremented,
+ * netdev_vport_route_changed() should be called to update
+ * the corresponding tunnel interface status. */
+static void
+netdev_vport_route_changed(void)
+{
+ struct netdev **vports;
+ size_t i, n_vports;
+
+ vports = netdev_get_vports(&n_vports);
+ for (i = 0; i < n_vports; i++) {
+ struct netdev *netdev_ = vports[i];
+ struct netdev_vport *netdev = netdev_vport_cast(netdev_);
+
+ ovs_mutex_lock(&netdev->mutex);
+ /* Finds all tunnel vports. */
+ if (netdev->tnl_cfg.ip_dst) {
+ if (tunnel_check_status_change__(netdev)) {
+ netdev_change_seq_changed(netdev_);
+ }
+ }
+ netdev_close(netdev_);
+ ovs_mutex_unlock(&netdev->mutex);
+ }
+
+ free(vports);
+}
+
+static struct netdev *
+netdev_vport_alloc(void)
+{
+ struct netdev_vport *netdev = xzalloc(sizeof *netdev);
+ return &netdev->up;
}
static int
-netdev_vport_create(const struct netdev_class *netdev_class, const char *name,
- struct netdev_dev **netdev_devp)
+netdev_vport_construct(struct netdev *netdev_)
{
- struct netdev_dev_vport *dev;
+ struct netdev_vport *netdev = netdev_vport_cast(netdev_);
- dev = xzalloc(sizeof *dev);
- netdev_dev_init(&dev->netdev_dev, name, netdev_class);
- dev->change_seq = 1;
- eth_addr_random(dev->etheraddr);
+ ovs_mutex_init(&netdev->mutex);
+ eth_addr_random(netdev->etheraddr);
- *netdev_devp = &dev->netdev_dev;
route_table_register();
return 0;
}
static void
-netdev_vport_destroy(struct netdev_dev *netdev_dev_)
+netdev_vport_destruct(struct netdev *netdev_)
{
- struct netdev_dev_vport *netdev_dev = netdev_dev_vport_cast(netdev_dev_);
+ struct netdev_vport *netdev = netdev_vport_cast(netdev_);
route_table_unregister();
- free(netdev_dev->peer);
- free(netdev_dev);
-}
-
-static int
-netdev_vport_open(struct netdev_dev *netdev_dev, struct netdev **netdevp)
-{
- *netdevp = xmalloc(sizeof **netdevp);
- netdev_init(*netdevp, netdev_dev);
- return 0;
+ free(netdev->peer);
+ ovs_mutex_destroy(&netdev->mutex);
}
static void
-netdev_vport_close(struct netdev *netdev)
+netdev_vport_dealloc(struct netdev *netdev_)
{
+ struct netdev_vport *netdev = netdev_vport_cast(netdev_);
free(netdev);
}
static int
-netdev_vport_set_etheraddr(struct netdev *netdev,
+netdev_vport_set_etheraddr(struct netdev *netdev_,
const uint8_t mac[ETH_ADDR_LEN])
{
- struct netdev_dev_vport *dev = netdev_vport_get_dev(netdev);
- memcpy(dev->etheraddr, mac, ETH_ADDR_LEN);
- netdev_vport_poll_notify(dev);
+ struct netdev_vport *netdev = netdev_vport_cast(netdev_);
+
+ ovs_mutex_lock(&netdev->mutex);
+ memcpy(netdev->etheraddr, mac, ETH_ADDR_LEN);
+ ovs_mutex_unlock(&netdev->mutex);
+ netdev_change_seq_changed(netdev_);
+
return 0;
}
static int
-netdev_vport_get_etheraddr(const struct netdev *netdev,
+netdev_vport_get_etheraddr(const struct netdev *netdev_,
uint8_t mac[ETH_ADDR_LEN])
{
- memcpy(mac, netdev_vport_get_dev(netdev)->etheraddr, ETH_ADDR_LEN);
+ struct netdev_vport *netdev = netdev_vport_cast(netdev_);
+
+ ovs_mutex_lock(&netdev->mutex);
+ memcpy(mac, netdev->etheraddr, ETH_ADDR_LEN);
+ ovs_mutex_unlock(&netdev->mutex);
+
return 0;
}
-static int
-tunnel_get_status(const struct netdev *netdev, struct smap *smap)
+/* Checks if the tunnel status has changed and returns a boolean.
+ * Updates the tunnel status if it has changed. */
+static bool
+tunnel_check_status_change__(struct netdev_vport *netdev)
+ OVS_REQUIRES(netdev->mutex)
{
- static char iface[IFNAMSIZ];
+ char iface[IFNAMSIZ];
+ bool status = false;
ovs_be32 route;
- route = netdev_vport_get_dev(netdev)->tnl_cfg.ip_dst;
+ iface[0] = '\0';
+ route = netdev->tnl_cfg.ip_dst;
if (route_table_get_name(route, iface)) {
struct netdev *egress_netdev;
- smap_add(smap, "tunnel_egress_iface", iface);
-
if (!netdev_open(iface, "system", &egress_netdev)) {
- smap_add(smap, "tunnel_egress_iface_carrier",
- netdev_get_carrier(egress_netdev) ? "up" : "down");
+ status = netdev_get_carrier(egress_netdev);
netdev_close(egress_netdev);
}
}
+ if (strcmp(netdev->egress_iface, iface)
+ || netdev->carrier_status != status) {
+ ovs_strlcpy(netdev->egress_iface, iface, IFNAMSIZ);
+ netdev->carrier_status = status;
+
+ return true;
+ }
+
+ return false;
+}
+
+static int
+tunnel_get_status(const struct netdev *netdev_, struct smap *smap)
+{
+ struct netdev_vport *netdev = netdev_vport_cast(netdev_);
+
+ if (netdev->egress_iface[0]) {
+ smap_add(smap, "tunnel_egress_iface", netdev->egress_iface);
+
+ smap_add(smap, "tunnel_egress_iface_carrier",
+ netdev->carrier_status ? "up" : "down");
+ }
+
return 0;
}
static int
netdev_vport_update_flags(struct netdev *netdev OVS_UNUSED,
- enum netdev_flags off, enum netdev_flags on OVS_UNUSED,
- enum netdev_flags *old_flagsp)
+ enum netdev_flags off,
+ enum netdev_flags on OVS_UNUSED,
+ enum netdev_flags *old_flagsp)
{
if (off & (NETDEV_UP | NETDEV_PROMISC)) {
return EOPNOTSUPP;
return 0;
}
-static unsigned int
-netdev_vport_change_seq(const struct netdev *netdev)
-{
- return netdev_vport_get_dev(netdev)->change_seq;
-}
-
static void
netdev_vport_run(void)
{
+ uint64_t seq;
+
route_table_run();
+ seq = route_table_get_change_seq();
+ if (rt_change_seqno != seq) {
+ rt_change_seqno = seq;
+ netdev_vport_route_changed();
+ }
}
static void
netdev_vport_wait(void)
{
- route_table_wait();
-}
-\f
-/* Helper functions. */
+ uint64_t seq;
-static void
-netdev_vport_poll_notify(struct netdev_dev_vport *ndv)
-{
- ndv->change_seq++;
- if (!ndv->change_seq) {
- ndv->change_seq++;
+ route_table_wait();
+ seq = route_table_get_change_seq();
+ if (rt_change_seqno != seq) {
+ poll_immediate_wake();
}
}
\f
}
static int
-set_tunnel_config(struct netdev_dev *dev_, const struct smap *args)
+set_tunnel_config(struct netdev *dev_, const struct smap *args)
{
- struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
- const char *name = netdev_dev_get_name(dev_);
- const char *type = netdev_dev_get_type(dev_);
+ struct netdev_vport *dev = netdev_vport_cast(dev_);
+ const char *name = netdev_get_name(dev_);
+ const char *type = netdev_get_type(dev_);
bool ipsec_mech_set, needs_dst_port, has_csum;
struct netdev_tunnel_config tnl_cfg;
struct smap_node *node;
}
if (tnl_cfg.ipsec) {
+ static struct ovs_mutex mutex = OVS_MUTEX_INITIALIZER;
static pid_t pid = 0;
+
+#ifndef _WIN32
+ ovs_mutex_lock(&mutex);
if (pid <= 0) {
char *file_name = xasprintf("%s/%s", ovs_rundir(),
"ovs-monitor-ipsec.pid");
pid = read_pidfile(file_name);
free(file_name);
}
+ ovs_mutex_unlock(&mutex);
+#endif
if (pid < 0) {
VLOG_ERR("%s: IPsec requires the ovs-monitor-ipsec daemon",
&tnl_cfg.out_key_present,
&tnl_cfg.out_key_flow);
+ ovs_mutex_lock(&dev->mutex);
dev->tnl_cfg = tnl_cfg;
- netdev_vport_poll_notify(dev);
+ tunnel_check_status_change__(dev);
+ netdev_change_seq_changed(dev_);
+ ovs_mutex_unlock(&dev->mutex);
return 0;
}
static int
-get_tunnel_config(struct netdev_dev *dev, struct smap *args)
+get_tunnel_config(const struct netdev *dev, struct smap *args)
{
- const struct netdev_tunnel_config *tnl_cfg =
- &netdev_dev_vport_cast(dev)->tnl_cfg;
+ struct netdev_vport *netdev = netdev_vport_cast(dev);
+ struct netdev_tunnel_config tnl_cfg;
+
+ ovs_mutex_lock(&netdev->mutex);
+ tnl_cfg = netdev->tnl_cfg;
+ ovs_mutex_unlock(&netdev->mutex);
- if (tnl_cfg->ip_dst) {
- smap_add_format(args, "remote_ip", IP_FMT, IP_ARGS(tnl_cfg->ip_dst));
- } else if (tnl_cfg->ip_dst_flow) {
+ if (tnl_cfg.ip_dst) {
+ smap_add_format(args, "remote_ip", IP_FMT, IP_ARGS(tnl_cfg.ip_dst));
+ } else if (tnl_cfg.ip_dst_flow) {
smap_add(args, "remote_ip", "flow");
}
- if (tnl_cfg->ip_src) {
- smap_add_format(args, "local_ip", IP_FMT, IP_ARGS(tnl_cfg->ip_src));
- } else if (tnl_cfg->ip_src_flow) {
+ if (tnl_cfg.ip_src) {
+ smap_add_format(args, "local_ip", IP_FMT, IP_ARGS(tnl_cfg.ip_src));
+ } else if (tnl_cfg.ip_src_flow) {
smap_add(args, "local_ip", "flow");
}
- if (tnl_cfg->in_key_flow && tnl_cfg->out_key_flow) {
+ if (tnl_cfg.in_key_flow && tnl_cfg.out_key_flow) {
smap_add(args, "key", "flow");
- } else if (tnl_cfg->in_key_present && tnl_cfg->out_key_present
- && tnl_cfg->in_key == tnl_cfg->out_key) {
- smap_add_format(args, "key", "%"PRIu64, ntohll(tnl_cfg->in_key));
+ } else if (tnl_cfg.in_key_present && tnl_cfg.out_key_present
+ && tnl_cfg.in_key == tnl_cfg.out_key) {
+ smap_add_format(args, "key", "%"PRIu64, ntohll(tnl_cfg.in_key));
} else {
- if (tnl_cfg->in_key_flow) {
+ if (tnl_cfg.in_key_flow) {
smap_add(args, "in_key", "flow");
- } else if (tnl_cfg->in_key_present) {
+ } else if (tnl_cfg.in_key_present) {
smap_add_format(args, "in_key", "%"PRIu64,
- ntohll(tnl_cfg->in_key));
+ ntohll(tnl_cfg.in_key));
}
- if (tnl_cfg->out_key_flow) {
+ if (tnl_cfg.out_key_flow) {
smap_add(args, "out_key", "flow");
- } else if (tnl_cfg->out_key_present) {
+ } else if (tnl_cfg.out_key_present) {
smap_add_format(args, "out_key", "%"PRIu64,
- ntohll(tnl_cfg->out_key));
+ ntohll(tnl_cfg.out_key));
}
}
- if (tnl_cfg->ttl_inherit) {
+ if (tnl_cfg.ttl_inherit) {
smap_add(args, "ttl", "inherit");
- } else if (tnl_cfg->ttl != DEFAULT_TTL) {
- smap_add_format(args, "ttl", "%"PRIu8, tnl_cfg->ttl);
+ } else if (tnl_cfg.ttl != DEFAULT_TTL) {
+ smap_add_format(args, "ttl", "%"PRIu8, tnl_cfg.ttl);
}
- if (tnl_cfg->tos_inherit) {
+ if (tnl_cfg.tos_inherit) {
smap_add(args, "tos", "inherit");
- } else if (tnl_cfg->tos) {
- smap_add_format(args, "tos", "0x%x", tnl_cfg->tos);
+ } else if (tnl_cfg.tos) {
+ smap_add_format(args, "tos", "0x%x", tnl_cfg.tos);
}
- if (tnl_cfg->dst_port) {
- uint16_t dst_port = ntohs(tnl_cfg->dst_port);
- const char *type = netdev_dev_get_type(dev);
+ if (tnl_cfg.dst_port) {
+ uint16_t dst_port = ntohs(tnl_cfg.dst_port);
+ const char *type = netdev_get_type(dev);
if ((!strcmp("vxlan", type) && dst_port != VXLAN_DST_PORT) ||
(!strcmp("lisp", type) && dst_port != LISP_DST_PORT)) {
}
}
- if (tnl_cfg->csum) {
+ if (tnl_cfg.csum) {
smap_add(args, "csum", "true");
}
- if (!tnl_cfg->dont_fragment) {
+ if (!tnl_cfg.dont_fragment) {
smap_add(args, "df_default", "false");
}
\f
/* Code specific to patch ports. */
-const char *
-netdev_vport_patch_peer(const struct netdev *netdev)
+/* If 'netdev' is a patch port, returns the name of its peer as a malloc()'d
+ * string that the caller must free.
+ *
+ * If 'netdev' is not a patch port, returns NULL. */
+char *
+netdev_vport_patch_peer(const struct netdev *netdev_)
{
- return netdev_vport_is_patch(netdev)
- ? netdev_vport_get_dev(netdev)->peer
- : NULL;
+ char *peer = NULL;
+
+ if (netdev_vport_is_patch(netdev_)) {
+ struct netdev_vport *netdev = netdev_vport_cast(netdev_);
+
+ ovs_mutex_lock(&netdev->mutex);
+ if (netdev->peer) {
+ peer = xstrdup(netdev->peer);
+ }
+ ovs_mutex_unlock(&netdev->mutex);
+ }
+
+ return peer;
}
void
netdev_vport_inc_rx(const struct netdev *netdev,
- const struct dpif_flow_stats *stats)
+ const struct dpif_flow_stats *stats)
{
- if (is_vport_class(netdev_dev_get_class(netdev_get_dev(netdev)))) {
- struct netdev_dev_vport *dev = netdev_vport_get_dev(netdev);
+ if (is_vport_class(netdev_get_class(netdev))) {
+ struct netdev_vport *dev = netdev_vport_cast(netdev);
+
+ ovs_mutex_lock(&dev->mutex);
dev->stats.rx_packets += stats->n_packets;
dev->stats.rx_bytes += stats->n_bytes;
+ ovs_mutex_unlock(&dev->mutex);
}
}
netdev_vport_inc_tx(const struct netdev *netdev,
const struct dpif_flow_stats *stats)
{
- if (is_vport_class(netdev_dev_get_class(netdev_get_dev(netdev)))) {
- struct netdev_dev_vport *dev = netdev_vport_get_dev(netdev);
+ if (is_vport_class(netdev_get_class(netdev))) {
+ struct netdev_vport *dev = netdev_vport_cast(netdev);
+
+ ovs_mutex_lock(&dev->mutex);
dev->stats.tx_packets += stats->n_packets;
dev->stats.tx_bytes += stats->n_bytes;
+ ovs_mutex_unlock(&dev->mutex);
}
}
static int
-get_patch_config(struct netdev_dev *dev_, struct smap *args)
+get_patch_config(const struct netdev *dev_, struct smap *args)
{
- struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
+ struct netdev_vport *dev = netdev_vport_cast(dev_);
+ ovs_mutex_lock(&dev->mutex);
if (dev->peer) {
smap_add(args, "peer", dev->peer);
}
+ ovs_mutex_unlock(&dev->mutex);
+
return 0;
}
static int
-set_patch_config(struct netdev_dev *dev_, const struct smap *args)
+set_patch_config(struct netdev *dev_, const struct smap *args)
{
- struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
- const char *name = netdev_dev_get_name(dev_);
+ struct netdev_vport *dev = netdev_vport_cast(dev_);
+ const char *name = netdev_get_name(dev_);
const char *peer;
peer = smap_get(args, "peer");
return EINVAL;
}
+ ovs_mutex_lock(&dev->mutex);
free(dev->peer);
dev->peer = xstrdup(peer);
+ netdev_change_seq_changed(dev_);
+ ovs_mutex_unlock(&dev->mutex);
return 0;
}
static int
get_stats(const struct netdev *netdev, struct netdev_stats *stats)
{
- struct netdev_dev_vport *dev = netdev_vport_get_dev(netdev);
- memcpy(stats, &dev->stats, sizeof *stats);
+ struct netdev_vport *dev = netdev_vport_cast(netdev);
+
+ ovs_mutex_lock(&dev->mutex);
+ *stats = dev->stats;
+ ovs_mutex_unlock(&dev->mutex);
+
return 0;
}
\f
netdev_vport_run, \
netdev_vport_wait, \
\
- netdev_vport_create, \
- netdev_vport_destroy, \
+ netdev_vport_alloc, \
+ netdev_vport_construct, \
+ netdev_vport_destruct, \
+ netdev_vport_dealloc, \
GET_CONFIG, \
SET_CONFIG, \
GET_TUNNEL_CONFIG, \
\
- netdev_vport_open, \
- netdev_vport_close, \
- \
- NULL, /* listen */ \
- NULL, /* recv */ \
- NULL, /* recv_wait */ \
- NULL, /* drain */ \
- \
NULL, /* send */ \
NULL, /* send_wait */ \
\
NULL, /* set_queue */ \
NULL, /* delete_queue */ \
NULL, /* get_queue_stats */ \
- NULL, /* dump_queues */ \
+ NULL, /* queue_dump_start */ \
+ NULL, /* queue_dump_next */ \
+ NULL, /* queue_dump_done */ \
NULL, /* dump_queue_stats */ \
\
NULL, /* get_in4 */ \
\
netdev_vport_update_flags, \
\
- netdev_vport_change_seq
+ NULL, /* rx_alloc */ \
+ NULL, /* rx_construct */ \
+ NULL, /* rx_destruct */ \
+ NULL, /* rx_dealloc */ \
+ NULL, /* rx_recv */ \
+ NULL, /* rx_wait */ \
+ NULL, /* rx_drain */
#define TUNNEL_CLASS(NAME, DPIF_PORT) \
{ DPIF_PORT, \
TUNNEL_CLASS("vxlan", "vxlan_system"),
TUNNEL_CLASS("lisp", "lisp_system")
};
+ static struct ovsthread_once once = OVSTHREAD_ONCE_INITIALIZER;
- int i;
+ if (ovsthread_once_start(&once)) {
+ int i;
- for (i = 0; i < ARRAY_SIZE(vport_classes); i++) {
- netdev_register_provider(&vport_classes[i].netdev_class);
+ for (i = 0; i < ARRAY_SIZE(vport_classes); i++) {
+ netdev_register_provider(&vport_classes[i].netdev_class);
+ }
+ ovsthread_once_done(&once);
}
}
git://git.onelab.eu / sliver-openvswitch.git / blobdiff