#include <errno.h>
-#include "ofproto/ofproto-provider.h"
#include "byte-order.h"
#include "dynamic-string.h"
#include "hash.h"
#include "hmap.h"
-#include "netdev-vport.h"
+#include "netdev.h"
#include "odp-util.h"
#include "packets.h"
#include "smap.h"
};
struct tnl_port {
+ struct hmap_node ofport_node;
struct hmap_node match_node;
- const struct ofport *ofport;
+ const struct ofport_dpif *ofport;
unsigned int netdev_seq;
+ struct netdev *netdev;
+
struct tnl_match match;
};
-static struct hmap tnl_match_map = HMAP_INITIALIZER(&tnl_match_map);
+static struct ovs_rwlock rwlock = OVS_RWLOCK_INITIALIZER;
+
+static struct hmap tnl_match_map__ = HMAP_INITIALIZER(&tnl_match_map__);
+static struct hmap *tnl_match_map OVS_GUARDED_BY(rwlock) = &tnl_match_map__;
-/* Returned to callers when their ofport will never be used to receive or send
- * tunnel traffic. Alternatively, we could ask the caller to delete their
- * ofport, but this would be unclean in the reconfguration case. For the first
- * time, an ofproto provider would have to call ofproto_port_del() on itself.*/
-static struct tnl_port void_tnl_port;
+static struct hmap ofport_map__ = HMAP_INITIALIZER(&ofport_map__);
+static struct hmap *ofport_map OVS_GUARDED_BY(rwlock) = &ofport_map__;
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
static struct vlog_rate_limit dbg_rl = VLOG_RATE_LIMIT_INIT(60, 60);
-static struct tnl_port *tnl_find(struct tnl_match *);
-static struct tnl_port *tnl_find_exact(struct tnl_match *);
+static struct tnl_port *tnl_find(struct tnl_match *) OVS_REQ_RDLOCK(rwlock);
+static struct tnl_port *tnl_find_exact(struct tnl_match *)
+ OVS_REQ_RDLOCK(rwlock);
+static struct tnl_port *tnl_find_ofport(const struct ofport_dpif *)
+ OVS_REQ_RDLOCK(rwlock);
+
static uint32_t tnl_hash(struct tnl_match *);
static void tnl_match_fmt(const struct tnl_match *, struct ds *);
-static char *tnl_port_fmt(const struct tnl_port *);
-static void tnl_port_mod_log(const struct tnl_port *, const char *action);
-static const char *tnl_port_get_name(const struct tnl_port *);
-
-static struct tnl_port *
-tnl_port_add__(const struct ofport *ofport, odp_port_t odp_port,
- bool warn)
+static char *tnl_port_fmt(const struct tnl_port *) OVS_REQ_RDLOCK(rwlock);
+static void tnl_port_mod_log(const struct tnl_port *, const char *action)
+ OVS_REQ_RDLOCK(rwlock);
+static const char *tnl_port_get_name(const struct tnl_port *)
+ OVS_REQ_RDLOCK(rwlock);
+static void tnl_port_del__(const struct ofport_dpif *) OVS_REQ_WRLOCK(rwlock);
+
+static bool
+tnl_port_add__(const struct ofport_dpif *ofport, const struct netdev *netdev,
+ odp_port_t odp_port, bool warn)
+ OVS_REQ_WRLOCK(rwlock)
{
const struct netdev_tunnel_config *cfg;
struct tnl_port *existing_port;
struct tnl_port *tnl_port;
- cfg = netdev_get_tunnel_config(ofport->netdev);
+ cfg = netdev_get_tunnel_config(netdev);
ovs_assert(cfg);
tnl_port = xzalloc(sizeof *tnl_port);
tnl_port->ofport = ofport;
- tnl_port->netdev_seq = netdev_change_seq(tnl_port->ofport->netdev);
+ tnl_port->netdev = netdev_ref(netdev);
+ tnl_port->netdev_seq = netdev_change_seq(tnl_port->netdev);
tnl_port->match.in_key = cfg->in_key;
tnl_port->match.ip_src = cfg->ip_src;
ds_destroy(&ds);
free(tnl_port);
}
- return &void_tnl_port;
+ return false;
}
- hmap_insert(&tnl_match_map, &tnl_port->match_node,
+ hmap_insert(ofport_map, &tnl_port->ofport_node, hash_pointer(ofport, 0));
+ hmap_insert(tnl_match_map, &tnl_port->match_node,
tnl_hash(&tnl_port->match));
tnl_port_mod_log(tnl_port, "adding");
- return tnl_port;
+ return true;
}
/* Adds 'ofport' to the module with datapath port number 'odp_port'. 'ofport's
* must be added before they can be used by the module. 'ofport' must be a
* tunnel. */
-struct tnl_port *
-tnl_port_add(const struct ofport *ofport, odp_port_t odp_port)
+void
+tnl_port_add(const struct ofport_dpif *ofport, const struct netdev *netdev,
+ odp_port_t odp_port) OVS_EXCLUDED(rwlock)
{
- return tnl_port_add__(ofport, odp_port, true);
+ ovs_rwlock_wrlock(&rwlock);
+ tnl_port_add__(ofport, netdev, odp_port, true);
+ ovs_rwlock_unlock(&rwlock);
}
-/* Checks if the tnl_port pointed to by 'tnl_portp' needs reconfiguration due
- * to changes in its netdev_tunnel_config. If it does, updates 'tnl_portp' to
- * point to a new tnl_port and returns true. Otherwise, returns false.
- * 'ofport' and 'odp_port' should be the same as would be passed to
+/* Checks if the tunnel represented by 'ofport' reconfiguration due to changes
+ * in its netdev_tunnel_config. If it does, returns true. Otherwise, returns
+ * false. 'ofport' and 'odp_port' should be the same as would be passed to
* tnl_port_add(). */
bool
-tnl_port_reconfigure(const struct ofport *ofport, odp_port_t odp_port,
- struct tnl_port **tnl_portp)
+tnl_port_reconfigure(const struct ofport_dpif *ofport,
+ const struct netdev *netdev, odp_port_t odp_port)
+ OVS_EXCLUDED(rwlock)
{
- struct tnl_port *tnl_port = *tnl_portp;
+ struct tnl_port *tnl_port;
+ bool changed = false;
- if (tnl_port == &void_tnl_port) {
- *tnl_portp = tnl_port_add__(ofport, odp_port, false);
- return *tnl_portp != &void_tnl_port;
- } else if (tnl_port->ofport != ofport
+ ovs_rwlock_wrlock(&rwlock);
+ tnl_port = tnl_find_ofport(ofport);
+ if (!tnl_port) {
+ changed = tnl_port_add__(ofport, netdev, odp_port, false);
+ } else if (tnl_port->netdev != netdev
|| tnl_port->match.odp_port != odp_port
- || tnl_port->netdev_seq != netdev_change_seq(ofport->netdev)) {
+ || tnl_port->netdev_seq != netdev_change_seq(netdev)) {
VLOG_DBG("reconfiguring %s", tnl_port_get_name(tnl_port));
- tnl_port_del(tnl_port);
- *tnl_portp = tnl_port_add(ofport, odp_port);
- return true;
+ tnl_port_del__(ofport);
+ tnl_port_add__(ofport, netdev, odp_port, true);
+ changed = true;
}
- return false;
+ ovs_rwlock_unlock(&rwlock);
+ return changed;
}
-/* Removes 'tnl_port' from the module. */
-void
-tnl_port_del(struct tnl_port *tnl_port)
+static void
+tnl_port_del__(const struct ofport_dpif *ofport) OVS_REQ_WRLOCK(rwlock)
{
- if (tnl_port && tnl_port != &void_tnl_port) {
+ struct tnl_port *tnl_port;
+
+ if (!ofport) {
+ return;
+ }
+
+ tnl_port = tnl_find_ofport(ofport);
+ if (tnl_port) {
tnl_port_mod_log(tnl_port, "removing");
- hmap_remove(&tnl_match_map, &tnl_port->match_node);
+ hmap_remove(tnl_match_map, &tnl_port->match_node);
+ hmap_remove(ofport_map, &tnl_port->ofport_node);
+ netdev_close(tnl_port->netdev);
free(tnl_port);
}
}
+/* Removes 'ofport' from the module. */
+void
+tnl_port_del(const struct ofport_dpif *ofport) OVS_EXCLUDED(rwlock)
+{
+ ovs_rwlock_wrlock(&rwlock);
+ tnl_port_del__(ofport);
+ ovs_rwlock_unlock(&rwlock);
+}
+
/* Looks in the table of tunnels for a tunnel matching the metadata in 'flow'.
* Returns the 'ofport' corresponding to the new in_port, or a null pointer if
* none is found.
*
* Callers should verify that 'flow' needs to be received by calling
* tnl_port_should_receive() before this function. */
-const struct ofport *
-tnl_port_receive(const struct flow *flow)
+const struct ofport_dpif *
+tnl_port_receive(const struct flow *flow) OVS_EXCLUDED(rwlock)
{
char *pre_flow_str = NULL;
+ const struct ofport_dpif *ofport;
struct tnl_port *tnl_port;
struct tnl_match match;
match.in_key = flow->tunnel.tun_id;
match.skb_mark = flow->skb_mark;
+ ovs_rwlock_rdlock(&rwlock);
tnl_port = tnl_find(&match);
+ ofport = tnl_port ? tnl_port->ofport : NULL;
if (!tnl_port) {
struct ds ds = DS_EMPTY_INITIALIZER;
tnl_match_fmt(&match, &ds);
VLOG_WARN_RL(&rl, "receive tunnel port not found (%s)", ds_cstr(&ds));
ds_destroy(&ds);
- return NULL;
+ goto out;
}
if (!VLOG_DROP_DBG(&dbg_rl)) {
free(pre_flow_str);
free(post_flow_str);
}
- return tnl_port->ofport;
+
+out:
+ ovs_rwlock_unlock(&rwlock);
+ return ofport;
}
/* Given that 'flow' should be output to the ofport corresponding to
* port that the output should happen on. May return ODPP_NONE if the output
* shouldn't occur. */
odp_port_t
-tnl_port_send(const struct tnl_port *tnl_port, struct flow *flow,
- struct flow_wildcards *wc)
+tnl_port_send(const struct ofport_dpif *ofport, struct flow *flow,
+ struct flow_wildcards *wc) OVS_EXCLUDED(rwlock)
{
const struct netdev_tunnel_config *cfg;
+ struct tnl_port *tnl_port;
char *pre_flow_str = NULL;
+ odp_port_t out_port;
- if (tnl_port == &void_tnl_port) {
- return ODPP_NONE;
+ ovs_rwlock_rdlock(&rwlock);
+ tnl_port = tnl_find_ofport(ofport);
+ out_port = tnl_port ? tnl_port->match.odp_port : ODPP_NONE;
+ if (!tnl_port) {
+ goto out;
}
- cfg = netdev_get_tunnel_config(tnl_port->ofport->netdev);
+ cfg = netdev_get_tunnel_config(tnl_port->netdev);
ovs_assert(cfg);
if (!VLOG_DROP_DBG(&dbg_rl)) {
free(post_flow_str);
}
- return tnl_port->match.odp_port;
+out:
+ ovs_rwlock_unlock(&rwlock);
+ return out_port;
}
static uint32_t
}
static struct tnl_port *
-tnl_find_exact(struct tnl_match *match)
+tnl_find_ofport(const struct ofport_dpif *ofport) OVS_REQ_RDLOCK(rwlock)
+{
+ struct tnl_port *tnl_port;
+
+ HMAP_FOR_EACH_IN_BUCKET (tnl_port, ofport_node, hash_pointer(ofport, 0),
+ ofport_map) {
+ if (tnl_port->ofport == ofport) {
+ return tnl_port;
+ }
+ }
+ return NULL;
+}
+
+static struct tnl_port *
+tnl_find_exact(struct tnl_match *match) OVS_REQ_RDLOCK(rwlock)
{
struct tnl_port *tnl_port;
HMAP_FOR_EACH_WITH_HASH (tnl_port, match_node, tnl_hash(match),
- &tnl_match_map) {
+ tnl_match_map) {
if (!memcmp(match, &tnl_port->match, sizeof *match)) {
return tnl_port;
}
}
static struct tnl_port *
-tnl_find(struct tnl_match *match_)
+tnl_find(struct tnl_match *match_) OVS_REQ_RDLOCK(rwlock)
{
struct tnl_match match = *match_;
struct tnl_port *tnl_port;
static void
tnl_match_fmt(const struct tnl_match *match, struct ds *ds)
+ OVS_REQ_RDLOCK(rwlock)
{
if (!match->ip_dst_flow) {
ds_put_format(ds, IP_FMT"->"IP_FMT, IP_ARGS(match->ip_src),
static void
tnl_port_mod_log(const struct tnl_port *tnl_port, const char *action)
+ OVS_REQ_RDLOCK(rwlock)
{
if (VLOG_IS_DBG_ENABLED()) {
struct ds ds = DS_EMPTY_INITIALIZER;
}
static char *
-tnl_port_fmt(const struct tnl_port *tnl_port)
+tnl_port_fmt(const struct tnl_port *tnl_port) OVS_REQ_RDLOCK(rwlock)
{
const struct netdev_tunnel_config *cfg =
- netdev_get_tunnel_config(tnl_port->ofport->netdev);
+ netdev_get_tunnel_config(tnl_port->netdev);
struct ds ds = DS_EMPTY_INITIALIZER;
ds_put_format(&ds, "port %"PRIu32": %s (%s: ", tnl_port->match.odp_port,
tnl_port_get_name(tnl_port),
- netdev_get_type(tnl_port->ofport->netdev));
+ netdev_get_type(tnl_port->netdev));
tnl_match_fmt(&tnl_port->match, &ds);
if (cfg->out_key != cfg->in_key ||
}
static const char *
-tnl_port_get_name(const struct tnl_port *tnl_port)
+tnl_port_get_name(const struct tnl_port *tnl_port) OVS_REQ_RDLOCK(rwlock)
{
- return netdev_get_name(tnl_port->ofport->netdev);
+ return netdev_get_name(tnl_port->netdev);
}
git://git.onelab.eu / sliver-openvswitch.git / blobdiff