+\f
+/* The commit_odp_actions() function and its helpers. */
+
+static void
+commit_set_action(struct ofpbuf *odp_actions, enum ovs_key_attr key_type,
+ const void *key, size_t key_size)
+{
+ size_t offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SET);
+ nl_msg_put_unspec(odp_actions, key_type, key, key_size);
+ nl_msg_end_nested(odp_actions, offset);
+}
+
+static void
+commit_set_tun_id_action(const struct flow *flow, struct flow *base,
+ struct ofpbuf *odp_actions)
+{
+ if (base->tun_id == flow->tun_id) {
+ return;
+ }
+ base->tun_id = flow->tun_id;
+
+ commit_set_action(odp_actions, OVS_KEY_ATTR_TUN_ID,
+ &base->tun_id, sizeof(base->tun_id));
+}
+
+static void
+commit_set_ether_addr_action(const struct flow *flow, struct flow *base,
+ struct ofpbuf *odp_actions)
+{
+ struct ovs_key_ethernet eth_key;
+
+ if (eth_addr_equals(base->dl_src, flow->dl_src) &&
+ eth_addr_equals(base->dl_dst, flow->dl_dst)) {
+ return;
+ }
+
+ memcpy(base->dl_src, flow->dl_src, ETH_ADDR_LEN);
+ memcpy(base->dl_dst, flow->dl_dst, ETH_ADDR_LEN);
+
+ memcpy(eth_key.eth_src, base->dl_src, ETH_ADDR_LEN);
+ memcpy(eth_key.eth_dst, base->dl_dst, ETH_ADDR_LEN);
+
+ commit_set_action(odp_actions, OVS_KEY_ATTR_ETHERNET,
+ ð_key, sizeof(eth_key));
+}
+
+static void
+commit_vlan_action(const struct flow *flow, struct flow *base,
+ struct ofpbuf *odp_actions)
+{
+ if (base->vlan_tci == flow->vlan_tci) {
+ return;
+ }
+
+ if (base->vlan_tci & htons(VLAN_CFI)) {
+ nl_msg_put_flag(odp_actions, OVS_ACTION_ATTR_POP_VLAN);
+ }
+
+ if (flow->vlan_tci & htons(VLAN_CFI)) {
+ struct ovs_action_push_vlan vlan;
+
+ vlan.vlan_tpid = htons(ETH_TYPE_VLAN);
+ vlan.vlan_tci = flow->vlan_tci;
+ nl_msg_put_unspec(odp_actions, OVS_ACTION_ATTR_PUSH_VLAN,
+ &vlan, sizeof vlan);
+ }
+ base->vlan_tci = flow->vlan_tci;
+}
+
+static void
+commit_set_ipv4_action(const struct flow *flow, struct flow *base,
+ struct ofpbuf *odp_actions)
+{
+ struct ovs_key_ipv4 ipv4_key;
+
+ if (base->nw_src == flow->nw_src &&
+ base->nw_dst == flow->nw_dst &&
+ base->nw_tos == flow->nw_tos &&
+ base->nw_ttl == flow->nw_ttl &&
+ base->nw_frag == flow->nw_frag) {
+ return;
+ }
+
+ ipv4_key.ipv4_src = base->nw_src = flow->nw_src;
+ ipv4_key.ipv4_dst = base->nw_dst = flow->nw_dst;
+ ipv4_key.ipv4_tos = base->nw_tos = flow->nw_tos;
+ ipv4_key.ipv4_ttl = base->nw_ttl = flow->nw_ttl;
+ ipv4_key.ipv4_proto = base->nw_proto;
+ ipv4_key.ipv4_frag = ovs_to_odp_frag(base->nw_frag);
+
+ commit_set_action(odp_actions, OVS_KEY_ATTR_IPV4,
+ &ipv4_key, sizeof(ipv4_key));
+}
+
+static void
+commit_set_ipv6_action(const struct flow *flow, struct flow *base,
+ struct ofpbuf *odp_actions)
+{
+ struct ovs_key_ipv6 ipv6_key;
+
+ if (ipv6_addr_equals(&base->ipv6_src, &flow->ipv6_src) &&
+ ipv6_addr_equals(&base->ipv6_dst, &flow->ipv6_dst) &&
+ base->ipv6_label == flow->ipv6_label &&
+ base->nw_tos == flow->nw_tos &&
+ base->nw_ttl == flow->nw_ttl &&
+ base->nw_frag == flow->nw_frag) {
+ return;
+ }
+
+ base->ipv6_src = flow->ipv6_src;
+ memcpy(&ipv6_key.ipv6_src, &base->ipv6_src, sizeof(ipv6_key.ipv6_src));
+ base->ipv6_dst = flow->ipv6_dst;
+ memcpy(&ipv6_key.ipv6_dst, &base->ipv6_dst, sizeof(ipv6_key.ipv6_dst));
+
+ ipv6_key.ipv6_label = base->ipv6_label = flow->ipv6_label;
+ ipv6_key.ipv6_tclass = base->nw_tos = flow->nw_tos;
+ ipv6_key.ipv6_hlimit = base->nw_ttl = flow->nw_ttl;
+ ipv6_key.ipv6_proto = base->nw_proto;
+ ipv6_key.ipv6_frag = ovs_to_odp_frag(base->nw_frag);
+
+ commit_set_action(odp_actions, OVS_KEY_ATTR_IPV6,
+ &ipv6_key, sizeof(ipv6_key));
+}
+
+static void
+commit_set_nw_action(const struct flow *flow, struct flow *base,
+ struct ofpbuf *odp_actions)
+{
+ /* Check if flow really have an IP header. */
+ if (!flow->nw_proto) {
+ return;
+ }
+
+ if (base->dl_type == htons(ETH_TYPE_IP)) {
+ commit_set_ipv4_action(flow, base, odp_actions);
+ } else if (base->dl_type == htons(ETH_TYPE_IPV6)) {
+ commit_set_ipv6_action(flow, base, odp_actions);
+ }
+}
+
+static void
+commit_set_port_action(const struct flow *flow, struct flow *base,
+ struct ofpbuf *odp_actions)
+{
+ if (!base->tp_src && !base->tp_dst) {
+ return;
+ }
+
+ if (base->tp_src == flow->tp_src &&
+ base->tp_dst == flow->tp_dst) {
+ return;
+ }
+
+ if (flow->nw_proto == IPPROTO_TCP) {
+ struct ovs_key_tcp port_key;
+
+ port_key.tcp_src = base->tp_src = flow->tp_src;
+ port_key.tcp_dst = base->tp_dst = flow->tp_dst;
+
+ commit_set_action(odp_actions, OVS_KEY_ATTR_TCP,
+ &port_key, sizeof(port_key));
+
+ } else if (flow->nw_proto == IPPROTO_UDP) {
+ struct ovs_key_udp port_key;
+
+ port_key.udp_src = base->tp_src = flow->tp_src;
+ port_key.udp_dst = base->tp_dst = flow->tp_dst;
+
+ commit_set_action(odp_actions, OVS_KEY_ATTR_UDP,
+ &port_key, sizeof(port_key));
+ }
+}
+
+static void
+commit_set_priority_action(const struct flow *flow, struct flow *base,
+ struct ofpbuf *odp_actions)
+{
+ if (base->skb_priority == flow->skb_priority) {
+ return;
+ }
+ base->skb_priority = flow->skb_priority;
+
+ commit_set_action(odp_actions, OVS_KEY_ATTR_PRIORITY,
+ &base->skb_priority, sizeof(base->skb_priority));
+}
+
+/* If any of the flow key data that ODP actions can modify are different in
+ * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow
+ * key from 'base' into 'flow', and then changes 'base' the same way. */
+void
+commit_odp_actions(const struct flow *flow, struct flow *base,
+ struct ofpbuf *odp_actions)
+{
+ commit_set_tun_id_action(flow, base, odp_actions);
+ commit_set_ether_addr_action(flow, base, odp_actions);
+ commit_vlan_action(flow, base, odp_actions);
+ commit_set_nw_action(flow, base, odp_actions);
+ commit_set_port_action(flow, base, odp_actions);
+ commit_set_priority_action(flow, base, odp_actions);
+}