*/
#include <config.h>
+#include "binding.h"
#include "byte-order.h"
#include "flow.h"
#include "lflow.h"
+#include "lib/poll-loop.h"
#include "ofctrl.h"
#include "openvswitch/match.h"
#include "openvswitch/ofp-actions.h"
#include "openvswitch/vlog.h"
#include "ovn-controller.h"
#include "ovn/lib/ovn-sb-idl.h"
+#include "ovn/lib/ovn-util.h"
#include "physical.h"
-#include "shash.h"
+#include "openvswitch/shash.h"
#include "simap.h"
#include "smap.h"
#include "sset.h"
+#include "util.h"
#include "vswitch-idl.h"
VLOG_DEFINE_THIS_MODULE(physical);
ovsdb_idl_add_column(ovs_idl, &ovsrec_interface_col_external_ids);
}
+static struct simap localvif_to_ofport =
+ SIMAP_INITIALIZER(&localvif_to_ofport);
+static struct hmap tunnels = HMAP_INITIALIZER(&tunnels);
+
+/* UUID to identify OF flows not associated with ovsdb rows. */
+static struct uuid *hc_uuid = NULL;
+static bool full_binding_processing = false;
+
+void
+physical_reset_processing(void)
+{
+ full_binding_processing = true;
+}
+
/* Maps from a chassis to the OpenFlow port number of the tunnel that can be
* used to reach that chassis. */
struct chassis_tunnel {
};
static struct chassis_tunnel *
-chassis_tunnel_find(struct hmap *tunnels, const char *chassis_id)
+chassis_tunnel_find(const char *chassis_id)
{
struct chassis_tunnel *tun;
HMAP_FOR_EACH_WITH_HASH (tun, hmap_node, hash_string(chassis_id, 0),
- tunnels) {
+ &tunnels) {
if (!strcmp(tun->chassis_id, chassis_id)) {
return tun;
}
return ld ? ld->localnet_port : NULL;
}
+static void
+consider_port_binding(enum mf_field_id mff_ovn_geneve,
+ const struct simap *ct_zones,
+ struct hmap *local_datapaths,
+ struct hmap *patched_datapaths,
+ const struct sbrec_port_binding *binding,
+ struct ofpbuf *ofpacts_p)
+{
+ /* Skip the port binding if the port is on a datapath that is neither
+ * local nor with any logical patch port connected, because local ports
+ * would never need to talk to those ports.
+ *
+ * Even with this approach there could still be unnecessary port
+ * bindings processed. A better approach would be a kind of "flood
+ * fill" algorithm:
+ *
+ * 1. Initialize set S to the logical datapaths that have a port
+ * located on the hypervisor.
+ *
+ * 2. For each patch port P in a logical datapath in S, add the
+ * logical datapath of the remote end of P to S. Iterate
+ * until S reaches a fixed point.
+ *
+ * This can be implemented in northd, which can generate the sets and
+ * save it on each port-binding record in SB, and ovn-controller can
+ * use the information directly. However, there can be update storms
+ * when a pair of patch ports are added/removed to connect/disconnect
+ * large lrouters and lswitches. This need to be studied further.
+ */
+ uint32_t dp_key = binding->datapath->tunnel_key;
+ uint32_t port_key = binding->tunnel_key;
+ if (!get_local_datapath(local_datapaths, dp_key)
+ && !get_patched_datapath(patched_datapaths, dp_key)) {
+ return;
+ }
+
+ /* Find the OpenFlow port for the logical port, as 'ofport'. This is
+ * one of:
+ *
+ * - If the port is a VIF on the chassis we're managing, the
+ * OpenFlow port for the VIF. 'tun' will be NULL.
+ *
+ * The same logic handles logical patch ports, as well as
+ * localnet patch ports.
+ *
+ * For a container nested inside a VM and accessible via a VLAN,
+ * 'tag' is the VLAN ID; otherwise 'tag' is 0.
+ *
+ * For a localnet patch port, if a VLAN ID was configured, 'tag'
+ * is set to that VLAN ID; otherwise 'tag' is 0.
+ *
+ * - If the port is on a remote chassis, the OpenFlow port for a
+ * tunnel to the VIF's remote chassis. 'tun' identifies that
+ * tunnel.
+ */
+
+ int tag = 0;
+ ofp_port_t ofport;
+ bool is_remote = false;
+ if (binding->parent_port && *binding->parent_port) {
+ if (!binding->tag) {
+ return;
+ }
+ ofport = u16_to_ofp(simap_get(&localvif_to_ofport,
+ binding->parent_port));
+ if (ofport) {
+ tag = *binding->tag;
+ }
+ } else {
+ ofport = u16_to_ofp(simap_get(&localvif_to_ofport,
+ binding->logical_port));
+ if ((!strcmp(binding->type, "localnet")
+ || !strcmp(binding->type, "l2gateway"))
+ && ofport && binding->tag) {
+ tag = *binding->tag;
+ }
+ }
+
+ const struct chassis_tunnel *tun = NULL;
+ const struct sbrec_port_binding *localnet_port =
+ get_localnet_port(local_datapaths, dp_key);
+ if (!ofport) {
+ /* It is remote port, may be reached by tunnel or localnet port */
+ is_remote = true;
+ if (!binding->chassis) {
+ return;
+ }
+ if (localnet_port) {
+ ofport = u16_to_ofp(simap_get(&localvif_to_ofport,
+ localnet_port->logical_port));
+ if (!ofport) {
+ return;
+ }
+ } else {
+ tun = chassis_tunnel_find(binding->chassis->name);
+ if (!tun) {
+ return;
+ }
+ ofport = tun->ofport;
+ }
+ }
+
+ struct match match;
+ if (!is_remote) {
+ int zone_id = simap_get(ct_zones, binding->logical_port);
+ /* Packets that arrive from a vif can belong to a VM or
+ * to a container located inside that VM. Packets that
+ * arrive from containers have a tag (vlan) associated with them.
+ */
+
+ /* Table 0, Priority 150 and 100.
+ * ==============================
+ *
+ * Priority 150 is for tagged traffic. This may be containers in a
+ * VM or a VLAN on a local network. For such traffic, match on the
+ * tags and then strip the tag.
+ *
+ * Priority 100 is for traffic belonging to VMs or untagged locally
+ * connected networks.
+ *
+ * For both types of traffic: set MFF_LOG_INPORT to the logical
+ * input port, MFF_LOG_DATAPATH to the logical datapath, and
+ * resubmit into the logical ingress pipeline starting at table
+ * 16. */
+ ofpbuf_clear(ofpacts_p);
+ match_init_catchall(&match);
+ match_set_in_port(&match, ofport);
+
+ /* Match a VLAN tag and strip it, including stripping priority tags
+ * (e.g. VLAN ID 0). In the latter case we'll add a second flow
+ * for frames that lack any 802.1Q header later. */
+ if (tag || !strcmp(binding->type, "localnet")
+ || !strcmp(binding->type, "l2gateway")) {
+ match_set_dl_vlan(&match, htons(tag));
+ ofpact_put_STRIP_VLAN(ofpacts_p);
+ }
+
+ /* Remember the size with just strip vlan added so far,
+ * as we're going to remove this with ofpbuf_pull() later. */
+ uint32_t ofpacts_orig_size = ofpacts_p->size;
+
+ if (zone_id) {
+ put_load(zone_id, MFF_LOG_CT_ZONE, 0, 32, ofpacts_p);
+ }
+
+ int zone_id_dnat, zone_id_snat;
+ char *key = xasprintf(UUID_FMT,
+ UUID_ARGS(&binding->datapath->header_.uuid));
+ char *dnat = alloc_nat_zone_key(key, "dnat");
+ char *snat = alloc_nat_zone_key(key, "snat");
+ free(key);
+
+ zone_id_dnat = simap_get(ct_zones, dnat);
+ if (zone_id_dnat) {
+ put_load(zone_id_dnat, MFF_LOG_DNAT_ZONE, 0, 32, ofpacts_p);
+ }
+ free(dnat);
+
+ zone_id_snat = simap_get(ct_zones, snat);
+ if (zone_id_snat) {
+ put_load(zone_id_snat, MFF_LOG_SNAT_ZONE, 0, 32, ofpacts_p);
+ }
+ free(snat);
+
+ /* Set MFF_LOG_DATAPATH and MFF_LOG_INPORT. */
+ put_load(dp_key, MFF_LOG_DATAPATH, 0, 64, ofpacts_p);
+ put_load(port_key, MFF_LOG_INPORT, 0, 32, ofpacts_p);
+
+ /* Resubmit to first logical ingress pipeline table. */
+ put_resubmit(OFTABLE_LOG_INGRESS_PIPELINE, ofpacts_p);
+ ofctrl_add_flow(OFTABLE_PHY_TO_LOG,
+ tag ? 150 : 100, &match, ofpacts_p,
+ &binding->header_.uuid);
+
+ if (!tag && (!strcmp(binding->type, "localnet")
+ || !strcmp(binding->type, "l2gateway"))) {
+
+ /* Add a second flow for frames that lack any 802.1Q
+ * header. For these, drop the OFPACT_STRIP_VLAN
+ * action. */
+ ofpbuf_pull(ofpacts_p, ofpacts_orig_size);
+ match_set_dl_tci_masked(&match, 0, htons(VLAN_CFI));
+ ofctrl_add_flow(0, 100, &match, ofpacts_p,
+ &binding->header_.uuid);
+ }
+
+ /* Table 33, priority 100.
+ * =======================
+ *
+ * Implements output to local hypervisor. Each flow matches a
+ * logical output port on the local hypervisor, and resubmits to
+ * table 34.
+ */
+
+ match_init_catchall(&match);
+ ofpbuf_clear(ofpacts_p);
+
+ /* Match MFF_LOG_DATAPATH, MFF_LOG_OUTPORT. */
+ match_set_metadata(&match, htonll(dp_key));
+ match_set_reg(&match, MFF_LOG_OUTPORT - MFF_REG0, port_key);
+
+ if (zone_id) {
+ put_load(zone_id, MFF_LOG_CT_ZONE, 0, 32, ofpacts_p);
+ }
+ if (zone_id_dnat) {
+ put_load(zone_id_dnat, MFF_LOG_DNAT_ZONE, 0, 32, ofpacts_p);
+ }
+ if (zone_id_snat) {
+ put_load(zone_id_snat, MFF_LOG_SNAT_ZONE, 0, 32, ofpacts_p);
+ }
+
+ /* Resubmit to table 34. */
+ put_resubmit(OFTABLE_DROP_LOOPBACK, ofpacts_p);
+ ofctrl_add_flow(OFTABLE_LOCAL_OUTPUT, 100,
+ &match, ofpacts_p, &binding->header_.uuid);
+
+ /* Table 34, Priority 100.
+ * =======================
+ *
+ * Drop packets whose logical inport and outport are the same. */
+ match_init_catchall(&match);
+ ofpbuf_clear(ofpacts_p);
+ match_set_metadata(&match, htonll(dp_key));
+ match_set_reg(&match, MFF_LOG_INPORT - MFF_REG0, port_key);
+ match_set_reg(&match, MFF_LOG_OUTPORT - MFF_REG0, port_key);
+ ofctrl_add_flow(OFTABLE_DROP_LOOPBACK, 100,
+ &match, ofpacts_p, &binding->header_.uuid);
+
+ /* Table 64, Priority 100.
+ * =======================
+ *
+ * Deliver the packet to the local vif. */
+ match_init_catchall(&match);
+ ofpbuf_clear(ofpacts_p);
+ match_set_metadata(&match, htonll(dp_key));
+ match_set_reg(&match, MFF_LOG_OUTPORT - MFF_REG0, port_key);
+ if (tag) {
+ /* For containers sitting behind a local vif, tag the packets
+ * before delivering them. */
+ struct ofpact_vlan_vid *vlan_vid;
+ vlan_vid = ofpact_put_SET_VLAN_VID(ofpacts_p);
+ vlan_vid->vlan_vid = tag;
+ vlan_vid->push_vlan_if_needed = true;
+
+ /* A packet might need to hair-pin back into its ingress
+ * OpenFlow port (to a different logical port, which we already
+ * checked back in table 34), so set the in_port to zero. */
+ put_stack(MFF_IN_PORT, ofpact_put_STACK_PUSH(ofpacts_p));
+ put_load(0, MFF_IN_PORT, 0, 16, ofpacts_p);
+ }
+ ofpact_put_OUTPUT(ofpacts_p)->port = ofport;
+ if (tag) {
+ /* Revert the tag added to the packets headed to containers
+ * in the previous step. If we don't do this, the packets
+ * that are to be broadcasted to a VM in the same logical
+ * switch will also contain the tag. Also revert the zero'd
+ * in_port. */
+ ofpact_put_STRIP_VLAN(ofpacts_p);
+ put_stack(MFF_IN_PORT, ofpact_put_STACK_POP(ofpacts_p));
+ }
+ ofctrl_add_flow(OFTABLE_LOG_TO_PHY, 100,
+ &match, ofpacts_p, &binding->header_.uuid);
+ } else if (!tun) {
+ /* Remote port connected by localnet port */
+ /* Table 33, priority 100.
+ * =======================
+ *
+ * Implements switching to localnet port. Each flow matches a
+ * logical output port on remote hypervisor, switch the output port
+ * to connected localnet port and resubmits to same table.
+ */
+
+ match_init_catchall(&match);
+ ofpbuf_clear(ofpacts_p);
+
+ /* Match MFF_LOG_DATAPATH, MFF_LOG_OUTPORT. */
+ match_set_metadata(&match, htonll(dp_key));
+ match_set_reg(&match, MFF_LOG_OUTPORT - MFF_REG0, port_key);
+
+ put_load(localnet_port->tunnel_key, MFF_LOG_OUTPORT, 0, 32, ofpacts_p);
+
+ /* Resubmit to table 33. */
+ put_resubmit(OFTABLE_LOCAL_OUTPUT, ofpacts_p);
+ ofctrl_add_flow(OFTABLE_LOCAL_OUTPUT, 100,
+ &match, ofpacts_p, &binding->header_.uuid);
+ } else {
+ /* Remote port connected by tunnel */
+ /* Table 32, priority 100.
+ * =======================
+ *
+ * Implements output to remote hypervisors. Each flow matches an
+ * output port that includes a logical port on a remote hypervisor,
+ * and tunnels the packet to that hypervisor.
+ */
+
+ match_init_catchall(&match);
+ ofpbuf_clear(ofpacts_p);
+
+ /* Match MFF_LOG_DATAPATH, MFF_LOG_OUTPORT. */
+ match_set_metadata(&match, htonll(dp_key));
+ match_set_reg(&match, MFF_LOG_OUTPORT - MFF_REG0, port_key);
+
+ put_encapsulation(mff_ovn_geneve, tun, binding->datapath,
+ port_key, ofpacts_p);
+
+ /* Output to tunnel. */
+ ofpact_put_OUTPUT(ofpacts_p)->port = ofport;
+ ofctrl_add_flow(OFTABLE_REMOTE_OUTPUT, 100,
+ &match, ofpacts_p, &binding->header_.uuid);
+ }
+}
+
+static void
+consider_mc_group(enum mf_field_id mff_ovn_geneve,
+ const struct simap *ct_zones,
+ struct hmap *local_datapaths,
+ const struct sbrec_multicast_group *mc,
+ struct ofpbuf *ofpacts_p,
+ struct ofpbuf *remote_ofpacts_p)
+{
+ struct sset remote_chassis = SSET_INITIALIZER(&remote_chassis);
+ struct match match;
+
+ match_init_catchall(&match);
+ match_set_metadata(&match, htonll(mc->datapath->tunnel_key));
+ match_set_reg(&match, MFF_LOG_OUTPORT - MFF_REG0, mc->tunnel_key);
+
+ /* Go through all of the ports in the multicast group:
+ *
+ * - For remote ports, add the chassis to 'remote_chassis'.
+ *
+ * - For local ports (other than logical patch ports), add actions
+ * to 'ofpacts_p' to set the output port and resubmit.
+ *
+ * - For logical patch ports, add actions to 'remote_ofpacts_p'
+ * instead. (If we put them in 'ofpacts', then the output
+ * would happen on every hypervisor in the multicast group,
+ * effectively duplicating the packet.)
+ */
+ ofpbuf_clear(ofpacts_p);
+ ofpbuf_clear(remote_ofpacts_p);
+ for (size_t i = 0; i < mc->n_ports; i++) {
+ struct sbrec_port_binding *port = mc->ports[i];
+
+ if (port->datapath != mc->datapath) {
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 1);
+ VLOG_WARN_RL(&rl, UUID_FMT": multicast group contains ports "
+ "in wrong datapath",
+ UUID_ARGS(&mc->header_.uuid));
+ continue;
+ }
+
+ int zone_id = simap_get(ct_zones, port->logical_port);
+ if (zone_id) {
+ put_load(zone_id, MFF_LOG_CT_ZONE, 0, 32, ofpacts_p);
+ }
+
+ if (!strcmp(port->type, "patch")) {
+ put_load(port->tunnel_key, MFF_LOG_OUTPORT, 0, 32,
+ remote_ofpacts_p);
+ put_resubmit(OFTABLE_DROP_LOOPBACK, remote_ofpacts_p);
+ } else if (simap_contains(&localvif_to_ofport,
+ (port->parent_port && *port->parent_port)
+ ? port->parent_port : port->logical_port)) {
+ put_load(port->tunnel_key, MFF_LOG_OUTPORT, 0, 32, ofpacts_p);
+ put_resubmit(OFTABLE_DROP_LOOPBACK, ofpacts_p);
+ } else if (port->chassis && !get_localnet_port(local_datapaths,
+ mc->datapath->tunnel_key)) {
+ /* Add remote chassis only when localnet port not exist,
+ * otherwise multicast will reach remote ports through localnet
+ * port. */
+ sset_add(&remote_chassis, port->chassis->name);
+ }
+ }
+
+ /* Table 33, priority 100.
+ * =======================
+ *
+ * Handle output to the local logical ports in the multicast group, if
+ * any. */
+ bool local_ports = ofpacts_p->size > 0;
+ if (local_ports) {
+ /* Following delivery to local logical ports, restore the multicast
+ * group as the logical output port. */
+ put_load(mc->tunnel_key, MFF_LOG_OUTPORT, 0, 32, ofpacts_p);
+
+ ofctrl_add_flow(OFTABLE_LOCAL_OUTPUT, 100,
+ &match, ofpacts_p, &mc->header_.uuid);
+ }
+
+ /* Table 32, priority 100.
+ * =======================
+ *
+ * Handle output to the remote chassis in the multicast group, if
+ * any. */
+ if (!sset_is_empty(&remote_chassis) || remote_ofpacts_p->size > 0) {
+ if (remote_ofpacts_p->size > 0) {
+ /* Following delivery to logical patch ports, restore the
+ * multicast group as the logical output port. */
+ put_load(mc->tunnel_key, MFF_LOG_OUTPORT, 0, 32,
+ remote_ofpacts_p);
+ }
+
+ const char *chassis;
+ const struct chassis_tunnel *prev = NULL;
+ SSET_FOR_EACH (chassis, &remote_chassis) {
+ const struct chassis_tunnel *tun
+ = chassis_tunnel_find(chassis);
+ if (!tun) {
+ continue;
+ }
+
+ if (!prev || tun->type != prev->type) {
+ put_encapsulation(mff_ovn_geneve, tun, mc->datapath,
+ mc->tunnel_key, remote_ofpacts_p);
+ prev = tun;
+ }
+ ofpact_put_OUTPUT(remote_ofpacts_p)->port = tun->ofport;
+ }
+
+ if (remote_ofpacts_p->size) {
+ if (local_ports) {
+ put_resubmit(OFTABLE_LOCAL_OUTPUT, remote_ofpacts_p);
+ }
+ ofctrl_add_flow(OFTABLE_REMOTE_OUTPUT, 100,
+ &match, remote_ofpacts_p, &mc->header_.uuid);
+ }
+ }
+ sset_destroy(&remote_chassis);
+}
+
void
physical_run(struct controller_ctx *ctx, enum mf_field_id mff_ovn_geneve,
const struct ovsrec_bridge *br_int, const char *this_chassis_id,
- const struct simap *ct_zones, struct hmap *flow_table,
+ const struct simap *ct_zones,
struct hmap *local_datapaths, struct hmap *patched_datapaths)
{
- struct simap localvif_to_ofport = SIMAP_INITIALIZER(&localvif_to_ofport);
- struct hmap tunnels = HMAP_INITIALIZER(&tunnels);
+ if (!hc_uuid) {
+ hc_uuid = xmalloc(sizeof(struct uuid));
+ uuid_generate(hc_uuid);
+ }
+ struct simap new_localvif_to_ofport =
+ SIMAP_INITIALIZER(&new_localvif_to_ofport);
for (int i = 0; i < br_int->n_ports; i++) {
const struct ovsrec_port *port_rec = br_int->ports[i];
if (!strcmp(port_rec->name, br_int->name)) {
const char *localnet = smap_get(&port_rec->external_ids,
"ovn-localnet-port");
+ const char *l2gateway = smap_get(&port_rec->external_ids,
+ "ovn-l2gateway-port");
const char *logpatch = smap_get(&port_rec->external_ids,
"ovn-logical-patch-port");
bool is_patch = !strcmp(iface_rec->type, "patch");
if (is_patch && localnet) {
/* localnet patch ports can be handled just like VIFs. */
- simap_put(&localvif_to_ofport, localnet, ofport);
+ simap_put(&new_localvif_to_ofport, localnet, ofport);
+ break;
+ } else if (is_patch && l2gateway) {
+ /* L2 gateway patch ports can be handled just like VIFs. */
+ simap_put(&new_localvif_to_ofport, l2gateway, ofport);
break;
} else if (is_patch && logpatch) {
/* Logical patch ports can be handled just like VIFs. */
- simap_put(&localvif_to_ofport, logpatch, ofport);
+ simap_put(&new_localvif_to_ofport, logpatch, ofport);
break;
} else if (chassis_id) {
enum chassis_tunnel_type tunnel_type;
tun->chassis_id = chassis_id;
tun->ofport = u16_to_ofp(ofport);
tun->type = tunnel_type;
+ full_binding_processing = true;
+ binding_reset_processing();
+
+ /* Reprocess logical flow table immediately. */
+ lflow_reset_processing();
+ poll_immediate_wake();
break;
} else {
const char *iface_id = smap_get(&iface_rec->external_ids,
"iface-id");
if (iface_id) {
- simap_put(&localvif_to_ofport, iface_id, ofport);
+ simap_put(&new_localvif_to_ofport, iface_id, ofport);
}
}
}
}
+ /* Capture changed or removed openflow ports. */
+ bool localvif_map_changed = false;
+ struct simap_node *vif_name, *vif_name_next;
+ SIMAP_FOR_EACH_SAFE (vif_name, vif_name_next, &localvif_to_ofport) {
+ int newport;
+ if ((newport = simap_get(&new_localvif_to_ofport, vif_name->name))) {
+ if (newport != simap_get(&localvif_to_ofport, vif_name->name)) {
+ simap_put(&localvif_to_ofport, vif_name->name, newport);
+ localvif_map_changed = true;
+ }
+ } else {
+ simap_find_and_delete(&localvif_to_ofport, vif_name->name);
+ localvif_map_changed = true;
+ }
+ }
+ SIMAP_FOR_EACH (vif_name, &new_localvif_to_ofport) {
+ if (!simap_get(&localvif_to_ofport, vif_name->name)) {
+ simap_put(&localvif_to_ofport, vif_name->name,
+ simap_get(&new_localvif_to_ofport, vif_name->name));
+ localvif_map_changed = true;
+ }
+ }
+ if (localvif_map_changed) {
+ full_binding_processing = true;
+
+ /* Reprocess logical flow table immediately. */
+ lflow_reset_processing();
+ poll_immediate_wake();
+ }
+
struct ofpbuf ofpacts;
ofpbuf_init(&ofpacts, 0);
/* Set up flows in table 0 for physical-to-logical translation and in table
* 64 for logical-to-physical translation. */
const struct sbrec_port_binding *binding;
- SBREC_PORT_BINDING_FOR_EACH (binding, ctx->ovnsb_idl) {
- /* Skip the port binding if the port is on a datapath that is neither
- * local nor with any logical patch port connected, because local ports
- * would never need to talk to those ports.
- *
- * Even with this approach there could still be unnecessary port
- * bindings processed. A better approach would be a kind of "flood
- * fill" algorithm:
- *
- * 1. Initialize set S to the logical datapaths that have a port
- * located on the hypervisor.
- *
- * 2. For each patch port P in a logical datapath in S, add the
- * logical datapath of the remote end of P to S. Iterate
- * until S reaches a fixed point.
- *
- * This can be implemented in northd, which can generate the sets and
- * save it on each port-binding record in SB, and ovn-controller can
- * use the information directly. However, there can be update storms
- * when a pair of patch ports are added/removed to connect/disconnect
- * large lrouters and lswitches. This need to be studied further.
- */
- uint32_t dp_key = binding->datapath->tunnel_key;
- uint32_t port_key = binding->tunnel_key;
- if (!get_local_datapath(local_datapaths, dp_key)
- && !get_patched_datapath(patched_datapaths, dp_key)) {
- continue;
- }
-
- /* Find the OpenFlow port for the logical port, as 'ofport'. This is
- * one of:
- *
- * - If the port is a VIF on the chassis we're managing, the
- * OpenFlow port for the VIF. 'tun' will be NULL.
- *
- * The same logic handles logical patch ports, as well as
- * localnet patch ports.
- *
- * For a container nested inside a VM and accessible via a VLAN,
- * 'tag' is the VLAN ID; otherwise 'tag' is 0.
- *
- * For a localnet patch port, if a VLAN ID was configured, 'tag'
- * is set to that VLAN ID; otherwise 'tag' is 0.
- *
- * - If the port is on a remote chassis, the OpenFlow port for a
- * tunnel to the VIF's remote chassis. 'tun' identifies that
- * tunnel.
- */
-
- int tag = 0;
- ofp_port_t ofport;
- bool is_remote = false;
- if (binding->parent_port && *binding->parent_port) {
- if (!binding->tag) {
- continue;
- }
- ofport = u16_to_ofp(simap_get(&localvif_to_ofport,
- binding->parent_port));
- if (ofport) {
- tag = *binding->tag;
- }
- } else {
- ofport = u16_to_ofp(simap_get(&localvif_to_ofport,
- binding->logical_port));
- if (!strcmp(binding->type, "localnet") && ofport && binding->tag) {
- tag = *binding->tag;
- }
+ if (full_binding_processing) {
+ SBREC_PORT_BINDING_FOR_EACH (binding, ctx->ovnsb_idl) {
+ consider_port_binding(mff_ovn_geneve, ct_zones, local_datapaths,
+ patched_datapaths, binding, &ofpacts);
}
-
- const struct chassis_tunnel *tun = NULL;
- const struct sbrec_port_binding *localnet_port =
- get_localnet_port(local_datapaths, dp_key);
- if (!ofport) {
- /* It is remote port, may be reached by tunnel or localnet port */
- is_remote = true;
- if (!binding->chassis) {
- continue;
- }
- if (localnet_port) {
- ofport = u16_to_ofp(simap_get(&localvif_to_ofport,
- localnet_port->logical_port));
- if (!ofport) {
- continue;
- }
+ full_binding_processing = false;
+ } else {
+ SBREC_PORT_BINDING_FOR_EACH_TRACKED (binding, ctx->ovnsb_idl) {
+ if (sbrec_port_binding_is_deleted(binding)) {
+ ofctrl_remove_flows(&binding->header_.uuid);
} else {
- tun = chassis_tunnel_find(&tunnels, binding->chassis->name);
- if (!tun) {
- continue;
+ if (!sbrec_port_binding_is_new(binding)) {
+ ofctrl_remove_flows(&binding->header_.uuid);
}
- ofport = tun->ofport;
- }
- }
-
- struct match match;
- if (!is_remote) {
- int zone_id = simap_get(ct_zones, binding->logical_port);
- /* Packets that arrive from a vif can belong to a VM or
- * to a container located inside that VM. Packets that
- * arrive from containers have a tag (vlan) associated with them.
- */
-
- /* Table 0, Priority 150 and 100.
- * ==============================
- *
- * Priority 150 is for tagged traffic. This may be containers in a
- * VM or a VLAN on a local network. For such traffic, match on the
- * tags and then strip the tag.
- *
- * Priority 100 is for traffic belonging to VMs or untagged locally
- * connected networks.
- *
- * For both types of traffic: set MFF_LOG_INPORT to the logical
- * input port, MFF_LOG_DATAPATH to the logical datapath, and
- * resubmit into the logical ingress pipeline starting at table
- * 16. */
- ofpbuf_clear(&ofpacts);
- match_init_catchall(&match);
- match_set_in_port(&match, ofport);
-
- /* Match a VLAN tag and strip it, including stripping priority tags
- * (e.g. VLAN ID 0). In the latter case we'll add a second flow
- * for frames that lack any 802.1Q header later. */
- if (tag || !strcmp(binding->type, "localnet")) {
- match_set_dl_vlan(&match, htons(tag));
- ofpact_put_STRIP_VLAN(&ofpacts);
- }
-
- /* Remember the size with just strip vlan added so far,
- * as we're going to remove this with ofpbuf_pull() later. */
- uint32_t ofpacts_orig_size = ofpacts.size;
-
- if (zone_id) {
- put_load(zone_id, MFF_LOG_CT_ZONE, 0, 32, &ofpacts);
- }
-
- /* Set MFF_LOG_DATAPATH and MFF_LOG_INPORT. */
- put_load(dp_key, MFF_LOG_DATAPATH, 0, 64, &ofpacts);
- put_load(port_key, MFF_LOG_INPORT, 0, 32, &ofpacts);
-
- /* Resubmit to first logical ingress pipeline table. */
- put_resubmit(OFTABLE_LOG_INGRESS_PIPELINE, &ofpacts);
- ofctrl_add_flow(flow_table, OFTABLE_PHY_TO_LOG,
- tag ? 150 : 100, &match, &ofpacts);
-
- if (!tag && !strcmp(binding->type, "localnet")) {
- /* Add a second flow for frames that lack any 802.1Q
- * header. For these, drop the OFPACT_STRIP_VLAN
- * action. */
- ofpbuf_pull(&ofpacts, ofpacts_orig_size);
- match_set_dl_tci_masked(&match, 0, htons(VLAN_CFI));
- ofctrl_add_flow(flow_table, 0, 100, &match, &ofpacts);
- }
-
- /* Table 33, priority 100.
- * =======================
- *
- * Implements output to local hypervisor. Each flow matches a
- * logical output port on the local hypervisor, and resubmits to
- * table 34.
- */
-
- match_init_catchall(&match);
- ofpbuf_clear(&ofpacts);
-
- /* Match MFF_LOG_DATAPATH, MFF_LOG_OUTPORT. */
- match_set_metadata(&match, htonll(dp_key));
- match_set_reg(&match, MFF_LOG_OUTPORT - MFF_REG0, port_key);
-
- if (zone_id) {
- put_load(zone_id, MFF_LOG_CT_ZONE, 0, 32, &ofpacts);
+ consider_port_binding(mff_ovn_geneve, ct_zones, local_datapaths,
+ patched_datapaths, binding, &ofpacts);
}
-
- /* Resubmit to table 34. */
- put_resubmit(OFTABLE_DROP_LOOPBACK, &ofpacts);
- ofctrl_add_flow(flow_table, OFTABLE_LOCAL_OUTPUT, 100, &match,
- &ofpacts);
-
- /* Table 34, Priority 100.
- * =======================
- *
- * Drop packets whose logical inport and outport are the same. */
- match_init_catchall(&match);
- ofpbuf_clear(&ofpacts);
- match_set_metadata(&match, htonll(dp_key));
- match_set_reg(&match, MFF_LOG_INPORT - MFF_REG0, port_key);
- match_set_reg(&match, MFF_LOG_OUTPORT - MFF_REG0, port_key);
- ofctrl_add_flow(flow_table, OFTABLE_DROP_LOOPBACK, 100,
- &match, &ofpacts);
-
- /* Table 64, Priority 100.
- * =======================
- *
- * Deliver the packet to the local vif. */
- match_init_catchall(&match);
- ofpbuf_clear(&ofpacts);
- match_set_metadata(&match, htonll(dp_key));
- match_set_reg(&match, MFF_LOG_OUTPORT - MFF_REG0, port_key);
- if (tag) {
- /* For containers sitting behind a local vif, tag the packets
- * before delivering them. */
- struct ofpact_vlan_vid *vlan_vid;
- vlan_vid = ofpact_put_SET_VLAN_VID(&ofpacts);
- vlan_vid->vlan_vid = tag;
- vlan_vid->push_vlan_if_needed = true;
-
- /* A packet might need to hair-pin back into its ingress
- * OpenFlow port (to a different logical port, which we already
- * checked back in table 34), so set the in_port to zero. */
- put_stack(MFF_IN_PORT, ofpact_put_STACK_PUSH(&ofpacts));
- put_load(0, MFF_IN_PORT, 0, 16, &ofpacts);
- }
- ofpact_put_OUTPUT(&ofpacts)->port = ofport;
- if (tag) {
- /* Revert the tag added to the packets headed to containers
- * in the previous step. If we don't do this, the packets
- * that are to be broadcasted to a VM in the same logical
- * switch will also contain the tag. Also revert the zero'd
- * in_port. */
- ofpact_put_STRIP_VLAN(&ofpacts);
- put_stack(MFF_IN_PORT, ofpact_put_STACK_POP(&ofpacts));
- }
- ofctrl_add_flow(flow_table, OFTABLE_LOG_TO_PHY, 100,
- &match, &ofpacts);
- } else if (!tun) {
- /* Remote port connected by localnet port */
- /* Table 33, priority 100.
- * =======================
- *
- * Implements switching to localnet port. Each flow matches a
- * logical output port on remote hypervisor, switch the output port
- * to connected localnet port and resubmits to same table.
- */
-
- match_init_catchall(&match);
- ofpbuf_clear(&ofpacts);
-
- /* Match MFF_LOG_DATAPATH, MFF_LOG_OUTPORT. */
- match_set_metadata(&match, htonll(dp_key));
- match_set_reg(&match, MFF_LOG_OUTPORT - MFF_REG0, port_key);
-
- put_load(localnet_port->tunnel_key, MFF_LOG_OUTPORT, 0, 32, &ofpacts);
-
- /* Resubmit to table 33. */
- put_resubmit(OFTABLE_LOCAL_OUTPUT, &ofpacts);
- ofctrl_add_flow(flow_table, OFTABLE_LOCAL_OUTPUT, 100, &match,
- &ofpacts);
- } else {
- /* Remote port connected by tunnel */
- /* Table 32, priority 100.
- * =======================
- *
- * Implements output to remote hypervisors. Each flow matches an
- * output port that includes a logical port on a remote hypervisor,
- * and tunnels the packet to that hypervisor.
- */
-
- match_init_catchall(&match);
- ofpbuf_clear(&ofpacts);
-
- /* Match MFF_LOG_DATAPATH, MFF_LOG_OUTPORT. */
- match_set_metadata(&match, htonll(dp_key));
- match_set_reg(&match, MFF_LOG_OUTPORT - MFF_REG0, port_key);
-
- put_encapsulation(mff_ovn_geneve, tun, binding->datapath,
- port_key, &ofpacts);
-
- /* Output to tunnel. */
- ofpact_put_OUTPUT(&ofpacts)->port = ofport;
- ofctrl_add_flow(flow_table, OFTABLE_REMOTE_OUTPUT, 100,
- &match, &ofpacts);
}
}
struct ofpbuf remote_ofpacts;
ofpbuf_init(&remote_ofpacts, 0);
SBREC_MULTICAST_GROUP_FOR_EACH (mc, ctx->ovnsb_idl) {
- struct sset remote_chassis = SSET_INITIALIZER(&remote_chassis);
- struct match match;
-
- match_init_catchall(&match);
- match_set_metadata(&match, htonll(mc->datapath->tunnel_key));
- match_set_reg(&match, MFF_LOG_OUTPORT - MFF_REG0, mc->tunnel_key);
-
- /* Go through all of the ports in the multicast group:
- *
- * - For remote ports, add the chassis to 'remote_chassis'.
- *
- * - For local ports (other than logical patch ports), add actions
- * to 'ofpacts' to set the output port and resubmit.
- *
- * - For logical patch ports, add actions to 'remote_ofpacts'
- * instead. (If we put them in 'ofpacts', then the output
- * would happen on every hypervisor in the multicast group,
- * effectively duplicating the packet.)
- */
- ofpbuf_clear(&ofpacts);
- ofpbuf_clear(&remote_ofpacts);
- for (size_t i = 0; i < mc->n_ports; i++) {
- struct sbrec_port_binding *port = mc->ports[i];
-
- if (port->datapath != mc->datapath) {
- static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 1);
- VLOG_WARN_RL(&rl, UUID_FMT": multicast group contains ports "
- "in wrong datapath",
- UUID_ARGS(&mc->header_.uuid));
- continue;
- }
-
- int zone_id = simap_get(ct_zones, port->logical_port);
- if (zone_id) {
- put_load(zone_id, MFF_LOG_CT_ZONE, 0, 32, &ofpacts);
- }
-
- if (!strcmp(port->type, "patch")) {
- put_load(port->tunnel_key, MFF_LOG_OUTPORT, 0, 32,
- &remote_ofpacts);
- put_resubmit(OFTABLE_DROP_LOOPBACK, &remote_ofpacts);
- } else if (simap_contains(&localvif_to_ofport,
- (port->parent_port && *port->parent_port)
- ? port->parent_port : port->logical_port)) {
- put_load(port->tunnel_key, MFF_LOG_OUTPORT, 0, 32, &ofpacts);
- put_resubmit(OFTABLE_DROP_LOOPBACK, &ofpacts);
- } else if (port->chassis && !get_localnet_port(local_datapaths,
- mc->datapath->tunnel_key)) {
- /* Add remote chassis only when localnet port not exist,
- * otherwise multicast will reach remote ports through localnet
- * port. */
- sset_add(&remote_chassis, port->chassis->name);
- }
- }
-
- /* Table 33, priority 100.
- * =======================
- *
- * Handle output to the local logical ports in the multicast group, if
- * any. */
- bool local_ports = ofpacts.size > 0;
- if (local_ports) {
- /* Following delivery to local logical ports, restore the multicast
- * group as the logical output port. */
- put_load(mc->tunnel_key, MFF_LOG_OUTPORT, 0, 32, &ofpacts);
-
- ofctrl_add_flow(flow_table, OFTABLE_LOCAL_OUTPUT, 100,
- &match, &ofpacts);
- }
-
- /* Table 32, priority 100.
- * =======================
- *
- * Handle output to the remote chassis in the multicast group, if
- * any. */
- if (!sset_is_empty(&remote_chassis) || remote_ofpacts.size > 0) {
- if (remote_ofpacts.size > 0) {
- /* Following delivery to logical patch ports, restore the
- * multicast group as the logical output port. */
- put_load(mc->tunnel_key, MFF_LOG_OUTPORT, 0, 32,
- &remote_ofpacts);
- }
-
- const char *chassis;
- const struct chassis_tunnel *prev = NULL;
- SSET_FOR_EACH (chassis, &remote_chassis) {
- const struct chassis_tunnel *tun
- = chassis_tunnel_find(&tunnels, chassis);
- if (!tun) {
- continue;
- }
-
- if (!prev || tun->type != prev->type) {
- put_encapsulation(mff_ovn_geneve, tun, mc->datapath,
- mc->tunnel_key, &remote_ofpacts);
- prev = tun;
- }
- ofpact_put_OUTPUT(&remote_ofpacts)->port = tun->ofport;
- }
-
- if (remote_ofpacts.size) {
- if (local_ports) {
- put_resubmit(OFTABLE_LOCAL_OUTPUT, &remote_ofpacts);
- }
- ofctrl_add_flow(flow_table, OFTABLE_REMOTE_OUTPUT, 100,
- &match, &remote_ofpacts);
- }
- }
- sset_destroy(&remote_chassis);
+ consider_mc_group(mff_ovn_geneve, ct_zones,
+ local_datapaths, mc, &ofpacts, &remote_ofpacts);
}
+
ofpbuf_uninit(&remote_ofpacts);
/* Table 0, priority 100.
put_resubmit(OFTABLE_LOCAL_OUTPUT, &ofpacts);
- ofctrl_add_flow(flow_table, OFTABLE_PHY_TO_LOG, 100, &match, &ofpacts);
+ ofctrl_add_flow(OFTABLE_PHY_TO_LOG, 100, &match, &ofpacts,
+ hc_uuid);
}
/* Add flows for VXLAN encapsulations. Due to the limited amount of
put_load(binding->tunnel_key, MFF_LOG_INPORT, 0, 15, &ofpacts);
put_resubmit(OFTABLE_LOG_INGRESS_PIPELINE, &ofpacts);
- ofctrl_add_flow(flow_table, OFTABLE_PHY_TO_LOG, 100, &match,
- &ofpacts);
+ ofctrl_add_flow(OFTABLE_PHY_TO_LOG, 100, &match, &ofpacts, hc_uuid);
}
}
match_init_catchall(&match);
ofpbuf_clear(&ofpacts);
put_resubmit(OFTABLE_LOCAL_OUTPUT, &ofpacts);
- ofctrl_add_flow(flow_table, OFTABLE_REMOTE_OUTPUT, 0, &match, &ofpacts);
+ ofctrl_add_flow(OFTABLE_REMOTE_OUTPUT, 0, &match, &ofpacts, hc_uuid);
/* Table 34, Priority 0.
* =======================
MFF_LOG_REGS;
#undef MFF_LOG_REGS
put_resubmit(OFTABLE_LOG_EGRESS_PIPELINE, &ofpacts);
- ofctrl_add_flow(flow_table, OFTABLE_DROP_LOOPBACK, 0, &match, &ofpacts);
+ ofctrl_add_flow(OFTABLE_DROP_LOOPBACK, 0, &match, &ofpacts, hc_uuid);
ofpbuf_uninit(&ofpacts);
- simap_destroy(&localvif_to_ofport);
- struct chassis_tunnel *tun_next;
- HMAP_FOR_EACH_SAFE (tun, tun_next, hmap_node, &tunnels) {
- hmap_remove(&tunnels, &tun->hmap_node);
+ HMAP_FOR_EACH_POP (tun, hmap_node, &tunnels) {
free(tun);
}
- hmap_destroy(&tunnels);
+ hmap_clear(&tunnels);
+
+ simap_destroy(&new_localvif_to_ofport);
}
projects / cascardo / ovs.git / blobdiff