+bool
+cls_rule_set_dl_tci(struct cls_rule *rule, ovs_be16 tci)
+{
+ return cls_rule_set_dl_tci_masked(rule, tci, htons(0xffff));
+}
+
+bool
+cls_rule_set_dl_tci_masked(struct cls_rule *rule, ovs_be16 tci, ovs_be16 mask)
+{
+ switch (ntohs(mask)) {
+ case 0xffff:
+ if (tci == htons(0)) {
+ /* Match only packets that have no 802.1Q header. */
+ rule->wc.wildcards &= ~(OFPFW_DL_VLAN | OFPFW_DL_VLAN_PCP);
+ rule->flow.dl_vlan = htons(OFP_VLAN_NONE);
+ rule->flow.dl_vlan_pcp = 0;
+ return true;
+ } else if (tci & htons(VLAN_CFI)) {
+ /* Match only packets that have a specific 802.1Q VID and PCP. */
+ rule->wc.wildcards &= ~(OFPFW_DL_VLAN | OFPFW_DL_VLAN_PCP);
+ rule->flow.dl_vlan = htons(vlan_tci_to_vid(tci));
+ rule->flow.dl_vlan_pcp = vlan_tci_to_pcp(tci);
+ return true;
+ } else {
+ /* Impossible. */
+ return false;
+ }
+
+ case 0x1fff:
+ if (!(tci & htons(VLAN_CFI))) {
+ return false;
+ } else {
+ /* Match only packets that have a specific 802.1Q VID. */
+ cls_rule_set_dl_vlan(rule, tci & htons(VLAN_VID_MASK));
+ rule->wc.wildcards |= OFPFW_DL_VLAN_PCP;
+ rule->flow.dl_vlan_pcp = 0;
+ return true;
+ }
+
+ case 0xf000:
+ if (!(tci & htons(VLAN_CFI))) {
+ return false;
+ } else {
+ /* Match only packets that have a specific 802.1Q PCP. */
+ cls_rule_set_dl_vlan_pcp(rule, vlan_tci_to_pcp(tci));
+ rule->wc.wildcards |= OFPFW_DL_VLAN;
+ rule->flow.dl_vlan = 0;
+ return true;
+ }
+
+ case 0x0000:
+ /* Match anything. */
+ rule->wc.wildcards |= OFPFW_DL_VLAN | OFPFW_DL_VLAN_PCP;
+ rule->flow.dl_vlan = htons(0);
+ rule->flow.dl_vlan_pcp = 0;
+ return true;
+
+ default:
+ return false;
+ }
+}
+
+void
+cls_rule_set_dl_vlan(struct cls_rule *rule, ovs_be16 dl_vlan)
+{
+ if (dl_vlan != htons(OFP_VLAN_NONE)) {
+ dl_vlan &= htons(VLAN_VID_MASK);
+ }
+
+ rule->wc.wildcards &= ~OFPFW_DL_VLAN;
+ rule->flow.dl_vlan = dl_vlan;
+}
+
+void
+cls_rule_set_dl_vlan_pcp(struct cls_rule *rule, uint8_t dl_vlan_pcp)
+{
+ rule->wc.wildcards &= ~OFPFW_DL_VLAN_PCP;
+ rule->flow.dl_vlan_pcp = dl_vlan_pcp & 0x07;
+}
+