datapath: Consider tunnels to have no MTU, fixing jumbo frame support.

[sliver-openvswitch.git] / lib / dpif-netdev.c

diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c
index 7284e2f..93dd1cd 100644 (file)
--- a/lib/dpif-netdev.c
+++ b/lib/dpif-netdev.c
@@ -375,7 +375,7 @@ do_add_port(struct dp_netdev *dp, const char *devname, const char *type,
     port->internal = internal;
 
     netdev_get_mtu(netdev, &mtu);
-    if (mtu > max_mtu) {
+    if (mtu != INT_MAX && mtu > max_mtu) {
         max_mtu = mtu;
     }
 
@@ -656,7 +656,7 @@ dpif_netdev_flow_from_nlattrs(const struct nlattr *key, uint32_t key_len,
 }
 
 static int
-dpif_netdev_flow_get(const struct dpif *dpif, int flags,
+dpif_netdev_flow_get(const struct dpif *dpif,
                      const struct nlattr *nl_key, size_t nl_key_len,
                      struct ofpbuf **actionsp, struct dpif_flow_stats *stats)
 {
@@ -681,9 +681,6 @@ dpif_netdev_flow_get(const struct dpif *dpif, int flags,
     if (actionsp) {
         *actionsp = ofpbuf_clone_data(flow->actions, flow->actions_len);
     }
-    if (flags & ODPFF_ZERO_TCP_FLAGS) {
-        flow->tcp_ctl = 0;
-    }
     return 0;
 }
 
@@ -704,43 +701,43 @@ dpif_netdev_validate_actions(const struct nlattr *actions,
         }
 
         switch (type) {
-        case ODPAT_OUTPUT:
+        case ODP_ACTION_ATTR_OUTPUT:
             if (nl_attr_get_u32(a) >= MAX_PORTS) {
                 return EINVAL;
             }
             break;
 
-        case ODPAT_CONTROLLER:
-        case ODPAT_DROP_SPOOFED_ARP:
+        case ODP_ACTION_ATTR_CONTROLLER:
+        case ODP_ACTION_ATTR_DROP_SPOOFED_ARP:
             break;
 
-        case ODPAT_SET_DL_TCI:
+        case ODP_ACTION_ATTR_SET_DL_TCI:
             *mutates = true;
             if (nl_attr_get_be16(a) & htons(VLAN_CFI)) {
                 return EINVAL;
             }
             break;
 
-        case ODPAT_SET_NW_TOS:
+        case ODP_ACTION_ATTR_SET_NW_TOS:
             *mutates = true;
             if (nl_attr_get_u8(a) & IP_ECN_MASK) {
                 return EINVAL;
             }
             break;
 
-        case ODPAT_STRIP_VLAN:
-        case ODPAT_SET_DL_SRC:
-        case ODPAT_SET_DL_DST:
-        case ODPAT_SET_NW_SRC:
-        case ODPAT_SET_NW_DST:
-        case ODPAT_SET_TP_SRC:
-        case ODPAT_SET_TP_DST:
+        case ODP_ACTION_ATTR_STRIP_VLAN:
+        case ODP_ACTION_ATTR_SET_DL_SRC:
+        case ODP_ACTION_ATTR_SET_DL_DST:
+        case ODP_ACTION_ATTR_SET_NW_SRC:
+        case ODP_ACTION_ATTR_SET_NW_DST:
+        case ODP_ACTION_ATTR_SET_TP_SRC:
+        case ODP_ACTION_ATTR_SET_TP_DST:
             *mutates = true;
             break;
 
-        case ODPAT_SET_TUNNEL:
-        case ODPAT_SET_PRIORITY:
-        case ODPAT_POP_PRIORITY:
+        case ODP_ACTION_ATTR_SET_TUNNEL:
+        case ODP_ACTION_ATTR_SET_PRIORITY:
+        case ODP_ACTION_ATTR_POP_PRIORITY:
         default:
             return EOPNOTSUPP;
         }
@@ -999,12 +996,8 @@ static int
 dpif_netdev_recv_set_mask(struct dpif *dpif, int listen_mask)
 {
     struct dpif_netdev *dpif_netdev = dpif_netdev_cast(dpif);
-    if (!(listen_mask & ~ODPL_ALL)) {
-        dpif_netdev->listen_mask = listen_mask;
-        return 0;
-    } else {
-        return EINVAL;
-    }
+    dpif_netdev->listen_mask = listen_mask;
+    return 0;
 }
 
 static struct dp_netdev_queue *
@@ -1093,7 +1086,7 @@ dp_netdev_port_input(struct dp_netdev *dp, struct dp_netdev_port *port,
         dp->n_hit++;
     } else {
         dp->n_missed++;
-        dp_netdev_output_control(dp, packet, _ODPL_MISS_NR, &key, 0);
+        dp_netdev_output_control(dp, packet, DPIF_UC_MISS, &key, 0);
     }
 }
 
@@ -1222,11 +1215,11 @@ dp_netdev_set_nw_addr(struct ofpbuf *packet, const struct flow *key,
         uint16_t type = nl_attr_type(a);
         uint32_t *field;
 
-        field = type == ODPAT_SET_NW_SRC ? &nh->ip_src : &nh->ip_dst;
-        if (key->nw_proto == IP_TYPE_TCP && packet->l7) {
+        field = type == ODP_ACTION_ATTR_SET_NW_SRC ? &nh->ip_src : &nh->ip_dst;
+        if (key->nw_proto == IPPROTO_TCP && packet->l7) {
             struct tcp_header *th = packet->l4;
             th->tcp_csum = recalc_csum32(th->tcp_csum, *field, ip);
-        } else if (key->nw_proto == IP_TYPE_UDP && packet->l7) {
+        } else if (key->nw_proto == IPPROTO_UDP && packet->l7) {
             struct udp_header *uh = packet->l4;
             if (uh->udp_csum) {
                 uh->udp_csum = recalc_csum32(uh->udp_csum, *field, ip);
@@ -1268,12 +1261,14 @@ dp_netdev_set_tp_port(struct ofpbuf *packet, const struct flow *key,
 
         if (key->nw_proto == IPPROTO_TCP && packet->l7) {
             struct tcp_header *th = packet->l4;
-            field = type == ODPAT_SET_TP_SRC ? &th->tcp_src : &th->tcp_dst;
+            field = (type == ODP_ACTION_ATTR_SET_TP_SRC
+                     ? &th->tcp_src : &th->tcp_dst);
             th->tcp_csum = recalc_csum16(th->tcp_csum, *field, port);
             *field = port;
         } else if (key->nw_proto == IPPROTO_UDP && packet->l7) {
             struct udp_header *uh = packet->l4;
-            field = type == ODPAT_SET_TP_SRC ? &uh->udp_src : &uh->udp_dst;
+            field = (type == ODP_ACTION_ATTR_SET_TP_SRC
+                     ? &uh->udp_src : &uh->udp_dst);
             uh->udp_csum = recalc_csum16(uh->udp_csum, *field, port);
             *field = port;
         } else {
@@ -1364,46 +1359,46 @@ dp_netdev_execute_actions(struct dp_netdev *dp,
 
     NL_ATTR_FOR_EACH_UNSAFE (a, left, actions, actions_len) {
         switch (nl_attr_type(a)) {
-        case ODPAT_OUTPUT:
+        case ODP_ACTION_ATTR_OUTPUT:
             dp_netdev_output_port(dp, packet, nl_attr_get_u32(a));
             break;
 
-        case ODPAT_CONTROLLER:
-            dp_netdev_output_control(dp, packet, _ODPL_ACTION_NR,
+        case ODP_ACTION_ATTR_CONTROLLER:
+            dp_netdev_output_control(dp, packet, DPIF_UC_ACTION,
                                      key, nl_attr_get_u64(a));
             break;
 
-        case ODPAT_SET_DL_TCI:
+        case ODP_ACTION_ATTR_SET_DL_TCI:
             dp_netdev_set_dl_tci(packet, nl_attr_get_be16(a));
             break;
 
-        case ODPAT_STRIP_VLAN:
+        case ODP_ACTION_ATTR_STRIP_VLAN:
             dp_netdev_strip_vlan(packet);
             break;
 
-        case ODPAT_SET_DL_SRC:
+        case ODP_ACTION_ATTR_SET_DL_SRC:
             dp_netdev_set_dl_src(packet, nl_attr_get_unspec(a, ETH_ADDR_LEN));
             break;
 
-        case ODPAT_SET_DL_DST:
+        case ODP_ACTION_ATTR_SET_DL_DST:
             dp_netdev_set_dl_dst(packet, nl_attr_get_unspec(a, ETH_ADDR_LEN));
             break;
 
-        case ODPAT_SET_NW_SRC:
-        case ODPAT_SET_NW_DST:
+        case ODP_ACTION_ATTR_SET_NW_SRC:
+        case ODP_ACTION_ATTR_SET_NW_DST:
             dp_netdev_set_nw_addr(packet, key, a);
             break;
 
-        case ODPAT_SET_NW_TOS:
+        case ODP_ACTION_ATTR_SET_NW_TOS:
             dp_netdev_set_nw_tos(packet, key, nl_attr_get_u8(a));
             break;
 
-        case ODPAT_SET_TP_SRC:
-        case ODPAT_SET_TP_DST:
+        case ODP_ACTION_ATTR_SET_TP_SRC:
+        case ODP_ACTION_ATTR_SET_TP_DST:
             dp_netdev_set_tp_port(packet, key, a);
             break;
 
-        case ODPAT_DROP_SPOOFED_ARP:
+        case ODP_ACTION_ATTR_DROP_SPOOFED_ARP:
             if (dp_netdev_is_spoofed_arp(packet, key)) {
                 return 0;
             }
@@ -1419,7 +1414,6 @@ const struct dpif_class dpif_netdev_class = {
     NULL,                       /* enumerate */
     dpif_netdev_open,
     dpif_netdev_close,
-    NULL,                       /* get_all_names */
     dpif_netdev_destroy,
     dpif_netdev_get_stats,
     dpif_netdev_get_drop_frags,