#define NETDEV_RULE_PRIORITY 0x8000
#define NR_THREADS 1
+/* Use per thread recirc_depth to prevent recirculation loop. */
+#define MAX_RECIRC_DEPTH 5
+DEFINE_STATIC_PER_THREAD_DATA(uint32_t, recirc_depth, 0)
/* Configuration parameters. */
enum { MAX_FLOWS = 65536 }; /* Maximum number of flows in flow table. */
return class != &dpif_netdev_class;
}
+static bool
+dpif_netdev_class_is_planetlab(const struct dpif_class *class)
+{
+ return class == &dpif_planetlab_class;
+}
+
static const char *
dpif_netdev_port_open_type(const struct dpif_class *class, const char *type)
{
return strcmp(type, "internal") ? type
+ : dpif_netdev_class_is_planetlab(class) ? "pltap"
: dpif_netdev_class_is_dummy(class) ? "dummy"
: "tap";
}
{
uint32_t port_no;
- if (dp->class != &dpif_netdev_class) {
+ if (dp->class != &dpif_netdev_class &&
+ dp->class != &dpif_planetlab_class) {
const char *p;
int start_no = 0;
return EINVAL;
}
- /* Force unwildcard the in_port. */
- mask->in_port.odp_port = u32_to_odp(UINT32_MAX);
} else {
enum mf_field_id id;
/* No mask key, unwildcard everything except fields whose
}
}
+ /* Force unwildcard the in_port.
+ *
+ * We need to do this even in the case where we unwildcard "everything"
+ * above because "everything" only includes the 16-bit OpenFlow port number
+ * mask->in_port.ofp_port, which only covers half of the 32-bit datapath
+ * port number mask->in_port.odp_port. */
+ mask->in_port.odp_port = u32_to_odp(UINT32_MAX);
+
return 0;
}
}
static void
-dp_netdev_port_input(struct dp_netdev *dp, struct ofpbuf *packet,
- struct pkt_metadata *md)
+dp_netdev_input(struct dp_netdev *dp, struct ofpbuf *packet,
+ struct pkt_metadata *md)
+ OVS_REQ_RDLOCK(dp->port_rwlock)
{
struct dp_netdev_flow *netdev_flow;
struct flow key;
}
}
+static void
+dp_netdev_port_input(struct dp_netdev *dp, struct ofpbuf *packet,
+ struct pkt_metadata *md)
+ OVS_REQ_RDLOCK(dp->port_rwlock)
+{
+ uint32_t *recirc_depth = recirc_depth_get();
+
+ *recirc_depth = 0;
+ dp_netdev_input(dp, packet, md);
+}
+
static int
dp_netdev_output_userspace(struct dp_netdev *dp, struct ofpbuf *packet,
int queue_no, int type, const struct flow *flow,
struct dp_netdev_execute_aux *aux = aux_;
int type = nl_attr_type(a);
struct dp_netdev_port *p;
+ uint32_t *depth = recirc_depth_get();
switch ((enum ovs_action_attr)type) {
case OVS_ACTION_ATTR_OUTPUT:
break;
}
- case OVS_ACTION_ATTR_RECIRC: {
- const struct ovs_action_recirc *act;
+ case OVS_ACTION_ATTR_RECIRC:
+ if (*depth < MAX_RECIRC_DEPTH) {
+ struct pkt_metadata recirc_md = *md;
+ struct ofpbuf *recirc_packet;
+ const struct ovs_action_recirc *act;
- act = nl_attr_get(a);
- md->recirc_id = act->recirc_id;
- md->dp_hash = 0;
+ recirc_packet = may_steal ? packet : ofpbuf_clone(packet);
- if (act->hash_alg == OVS_RECIRC_HASH_ALG_L4) {
- struct flow flow;
+ act = nl_attr_get(a);
+ recirc_md.recirc_id = act->recirc_id;
+ recirc_md.dp_hash = 0;
- flow_extract(packet, md, &flow);
- md->dp_hash = flow_hash_symmetric_l4(&flow, act->hash_bias);
- }
+ if (act->hash_alg == OVS_RECIRC_HASH_ALG_L4) {
+ recirc_md.dp_hash = flow_hash_symmetric_l4(aux->key,
+ act->hash_bias);
+ if (!recirc_md.dp_hash) {
+ recirc_md.dp_hash = 1; /* 0 is not valid */
+ }
+ }
+
+ (*depth)++;
+ dp_netdev_input(aux->dp, recirc_packet, &recirc_md);
+ (*depth)--;
- dp_netdev_port_input(aux->dp, packet, md);
+ break;
+ } else {
+ VLOG_WARN("Packet dropped. Max recirculation depth exceeded.");
+ }
break;
- }
case OVS_ACTION_ATTR_PUSH_VLAN:
case OVS_ACTION_ATTR_POP_VLAN:
case __OVS_ACTION_ATTR_MAX:
OVS_NOT_REACHED();
}
-
}
static void
actions, actions_len, dp_execute_cb);
}
+#define DPIF_NETDEV_CLASS_FUNCTIONS \
+ dpif_netdev_enumerate, \
+ dpif_netdev_port_open_type, \
+ dpif_netdev_open, \
+ dpif_netdev_close, \
+ dpif_netdev_destroy, \
+ dpif_netdev_run, \
+ dpif_netdev_wait, \
+ dpif_netdev_get_stats, \
+ dpif_netdev_port_add, \
+ dpif_netdev_port_del, \
+ dpif_netdev_port_query_by_number, \
+ dpif_netdev_port_query_by_name, \
+ NULL, /* port_get_pid */ \
+ dpif_netdev_port_dump_start, \
+ dpif_netdev_port_dump_next, \
+ dpif_netdev_port_dump_done, \
+ dpif_netdev_port_poll, \
+ dpif_netdev_port_poll_wait, \
+ dpif_netdev_flow_get, \
+ dpif_netdev_flow_put, \
+ dpif_netdev_flow_del, \
+ dpif_netdev_flow_flush, \
+ dpif_netdev_flow_dump_state_init, \
+ dpif_netdev_flow_dump_start, \
+ dpif_netdev_flow_dump_next, \
+ NULL, \
+ dpif_netdev_flow_dump_done, \
+ dpif_netdev_flow_dump_state_uninit, \
+ dpif_netdev_execute, \
+ NULL, /* operate */ \
+ dpif_netdev_recv_set, \
+ dpif_netdev_handlers_set, \
+ dpif_netdev_queue_to_priority, \
+ dpif_netdev_recv, \
+ dpif_netdev_recv_wait, \
+ dpif_netdev_recv_purge, \
+
const struct dpif_class dpif_netdev_class = {
"netdev",
- dpif_netdev_enumerate,
- dpif_netdev_port_open_type,
- dpif_netdev_open,
- dpif_netdev_close,
- dpif_netdev_destroy,
- dpif_netdev_run,
- dpif_netdev_wait,
- dpif_netdev_get_stats,
- dpif_netdev_port_add,
- dpif_netdev_port_del,
- dpif_netdev_port_query_by_number,
- dpif_netdev_port_query_by_name,
- NULL, /* port_get_pid */
- dpif_netdev_port_dump_start,
- dpif_netdev_port_dump_next,
- dpif_netdev_port_dump_done,
- dpif_netdev_port_poll,
- dpif_netdev_port_poll_wait,
- dpif_netdev_flow_get,
- dpif_netdev_flow_put,
- dpif_netdev_flow_del,
- dpif_netdev_flow_flush,
- dpif_netdev_flow_dump_state_init,
- dpif_netdev_flow_dump_start,
- dpif_netdev_flow_dump_next,
- NULL,
- dpif_netdev_flow_dump_done,
- dpif_netdev_flow_dump_state_uninit,
- dpif_netdev_execute,
- NULL, /* operate */
- dpif_netdev_recv_set,
- dpif_netdev_handlers_set,
- dpif_netdev_queue_to_priority,
- dpif_netdev_recv,
- dpif_netdev_recv_wait,
- dpif_netdev_recv_purge,
+ DPIF_NETDEV_CLASS_FUNCTIONS
+};
+
+const struct dpif_class dpif_planetlab_class = {
+ "planetlab",
+ DPIF_NETDEV_CLASS_FUNCTIONS
};
static void
"DP PORT NEW-NUMBER",
3, 3, dpif_dummy_change_port_number, NULL);
}
+
git://git.onelab.eu / sliver-openvswitch.git / blobdiff