1 files changed, 32 insertions, 0 deletions

diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index 435eabc5ffaa..631056b66f80 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -293,6 +293,9 @@ enum ovs_key_attr {
         OVS_KEY_ATTR_DP_HASH,      /* u32 hash value. Value 0 indicates the hash
                                    is not computed by the datapath. */
         OVS_KEY_ATTR_RECIRC_ID, /* u32 recirc id */
+        OVS_KEY_ATTR_MPLS,      /* array of struct ovs_key_mpls.
+                                 * The implementation may restrict
+                                 * the accepted length of the array. */
 
 #ifdef __KERNEL__
         OVS_KEY_ATTR_TUNNEL_INFO,  /* struct ovs_tunnel_info */
@@ -340,6 +343,10 @@ struct ovs_key_ethernet {
         __u8     eth_dst[ETH_ALEN];
 };
 
+struct ovs_key_mpls {
+        __be32 mpls_lse;
+};
+
 struct ovs_key_ipv4 {
         __be32 ipv4_src;
         __be32 ipv4_dst;
@@ -484,6 +491,19 @@ enum ovs_userspace_attr {
 #define OVS_USERSPACE_ATTR_MAX (__OVS_USERSPACE_ATTR_MAX - 1)
 
 /**
+ * struct ovs_action_push_mpls - %OVS_ACTION_ATTR_PUSH_MPLS action argument.
+ * @mpls_lse: MPLS label stack entry to push.
+ * @mpls_ethertype: Ethertype to set in the encapsulating ethernet frame.
+ *
+ * The only values @mpls_ethertype should ever be given are %ETH_P_MPLS_UC and
+ * %ETH_P_MPLS_MC, indicating MPLS unicast or multicast. Other are rejected.
+ */
+struct ovs_action_push_mpls {
+        __be32 mpls_lse;
+        __be16 mpls_ethertype; /* Either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC */
+};
+
+/**
  * struct ovs_action_push_vlan - %OVS_ACTION_ATTR_PUSH_VLAN action argument.
  * @vlan_tpid: Tag protocol identifier (TPID) to push.
  * @vlan_tci: Tag control identifier (TCI) to push.  The CFI bit must be set
@@ -534,6 +554,15 @@ struct ovs_action_hash {
  * @OVS_ACTION_ATTR_POP_VLAN: Pop the outermost 802.1Q header off the packet.
  * @OVS_ACTION_ATTR_SAMPLE: Probabilitically executes actions, as specified in
  * the nested %OVS_SAMPLE_ATTR_* attributes.
+ * @OVS_ACTION_ATTR_PUSH_MPLS: Push a new MPLS label stack entry onto the
+ * top of the packets MPLS label stack.  Set the ethertype of the
+ * encapsulating frame to either %ETH_P_MPLS_UC or %ETH_P_MPLS_MC to
+ * indicate the new packet contents.
+ * @OVS_ACTION_ATTR_POP_MPLS: Pop an MPLS label stack entry off of the
+ * packet's MPLS label stack.  Set the encapsulating frame's ethertype to
+ * indicate the new packet contents. This could potentially still be
+ * %ETH_P_MPLS if the resulting MPLS label stack is not empty.  If there
+ * is no MPLS label stack, as determined by ethertype, no action is taken.
  *
  * Only a single header can be set with a single %OVS_ACTION_ATTR_SET.  Not all
  * fields within a header are modifiable, e.g. the IPv4 protocol and fragment
@@ -550,6 +579,9 @@ enum ovs_action_attr {
         OVS_ACTION_ATTR_SAMPLE,       /* Nested OVS_SAMPLE_ATTR_*. */
         OVS_ACTION_ATTR_RECIRC,       /* u32 recirc_id. */
         OVS_ACTION_ATTR_HASH,         /* struct ovs_action_hash. */
+        OVS_ACTION_ATTR_PUSH_MPLS,    /* struct ovs_action_push_mpls. */
+        OVS_ACTION_ATTR_POP_MPLS,     /* __be16 ethertype. */
+
         __OVS_ACTION_ATTR_MAX
 };