datapath: Mega flow implementation

[sliver-openvswitch.git] / include / linux / openvswitch.h

diff --git a/include/linux/openvswitch.h b/include/linux/openvswitch.h
index 7c6e3ab..a119b14 100644 (file)
--- a/include/linux/openvswitch.h
+++ b/include/linux/openvswitch.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007-2011 Nicira, Inc.
+ * Copyright (c) 2007-2013 Nicira, Inc.
  *
  * This file is offered under your choice of two licenses: Apache 2.0 or GNU
  * GPL 2.0 or later.  The permission statements for each of these licenses is
@@ -41,6 +41,7 @@
 #define _LINUX_OPENVSWITCH_H 1
 
 #include <linux/types.h>
+#include <linux/if_ether.h>
 
 /**
  * struct ovs_header - header for OVS Generic Netlink messages.
@@ -148,7 +149,8 @@ enum ovs_packet_cmd {
  * for %OVS_PACKET_CMD_EXECUTE.  It has nested %OVS_ACTION_ATTR_* attributes.
  * @OVS_PACKET_ATTR_USERDATA: Present for an %OVS_PACKET_CMD_ACTION
  * notification if the %OVS_ACTION_ATTR_USERSPACE action specified an
- * %OVS_USERSPACE_ATTR_USERDATA attribute.
+ * %OVS_USERSPACE_ATTR_USERDATA attribute, with the same length and content
+ * specified there.
  *
  * These attributes follow the &struct ovs_header within the Generic Netlink
  * payload for %OVS_PACKET_* commands.
@@ -158,7 +160,7 @@ enum ovs_packet_attr {
        OVS_PACKET_ATTR_PACKET,      /* Packet data. */
        OVS_PACKET_ATTR_KEY,         /* Nested OVS_KEY_ATTR_* attributes. */
        OVS_PACKET_ATTR_ACTIONS,     /* Nested OVS_ACTION_ATTR_* attributes. */
-       OVS_PACKET_ATTR_USERDATA,    /* u64 OVS_ACTION_ATTR_USERSPACE arg. */
+       OVS_PACKET_ATTR_USERDATA,    /* OVS_ACTION_ATTR_USERSPACE arg. */
        __OVS_PACKET_ATTR_MAX
 };
 
@@ -184,8 +186,8 @@ enum ovs_vport_type {
        OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */
        OVS_VPORT_TYPE_GRE,      /* GRE tunnel. */
        OVS_VPORT_TYPE_VXLAN,    /* VXLAN tunnel */
-       OVS_VPORT_TYPE_CAPWAP = 102,  /* CAPWAP tunnel */
        OVS_VPORT_TYPE_GRE64 = 104, /* GRE tunnel with 64-bit keys */
+       OVS_VPORT_TYPE_LISP = 105,  /* LISP tunnel */
        __OVS_VPORT_TYPE_MAX
 };
 
@@ -233,14 +235,15 @@ enum ovs_vport_attr {
 
 #define OVS_VPORT_ATTR_MAX (__OVS_VPORT_ATTR_MAX - 1)
 
-/* OVS_VPORT_ATTR_OPTIONS attributes for patch vports. */
+/* OVS_VPORT_ATTR_OPTIONS attributes for tunnels.
+ */
 enum {
-       OVS_PATCH_ATTR_UNSPEC,
-       OVS_PATCH_ATTR_PEER,    /* name of peer vport, as a string */
-       __OVS_PATCH_ATTR_MAX
+       OVS_TUNNEL_ATTR_UNSPEC,
+       OVS_TUNNEL_ATTR_DST_PORT, /* 16-bit UDP port, used by L4 tunnels. */
+       __OVS_TUNNEL_ATTR_MAX
 };
 
-#define OVS_PATCH_ATTR_MAX (__OVS_PATCH_ATTR_MAX - 1)
+#define OVS_TUNNEL_ATTR_MAX (__OVS_TUNNEL_ATTR_MAX - 1)
 
 /* Flows. */
 
@@ -284,8 +287,9 @@ enum ovs_key_attr {
        OVS_KEY_ATTR_IPV4_TUNNEL,  /* struct ovs_key_ipv4_tunnel */
 #endif
 
-       OVS_KEY_ATTR_MPLS = 62, /* struct ovs_key_mpls */
-       OVS_KEY_ATTR_TUN_ID = 63,  /* be64 tunnel ID */
+       OVS_KEY_ATTR_MPLS = 62, /* array of struct ovs_key_mpls.
+                                * The implementation may restrict
+                                * the accepted length of the array. */
        __OVS_KEY_ATTR_MAX
 };
 
@@ -323,12 +327,12 @@ enum ovs_frag_type {
 #define OVS_FRAG_TYPE_MAX (__OVS_FRAG_TYPE_MAX - 1)
 
 struct ovs_key_ethernet {
-       __u8     eth_src[6];
-       __u8     eth_dst[6];
+       __u8     eth_src[ETH_ALEN];
+       __u8     eth_dst[ETH_ALEN];
 };
 
 struct ovs_key_mpls {
-       __be32 mpls_top_lse;
+       __be32 mpls_lse;
 };
 
 struct ovs_key_ipv4 {
@@ -374,14 +378,14 @@ struct ovs_key_arp {
        __be32 arp_sip;
        __be32 arp_tip;
        __be16 arp_op;
-       __u8   arp_sha[6];
-       __u8   arp_tha[6];
+       __u8   arp_sha[ETH_ALEN];
+       __u8   arp_tha[ETH_ALEN];
 };
 
 struct ovs_key_nd {
        __u32 nd_target[4];
-       __u8  nd_sll[6];
-       __u8  nd_tll[6];
+       __u8  nd_sll[ETH_ALEN];
+       __u8  nd_tll[ETH_ALEN];
 };
 
 /**
@@ -406,6 +410,12 @@ struct ovs_key_nd {
  * @OVS_FLOW_ATTR_CLEAR: If present in a %OVS_FLOW_CMD_SET request, clears the
  * last-used time, accumulated TCP flags, and statistics for this flow.
  * Otherwise ignored in requests.  Never present in notifications.
+ * @OVS_FLOW_ATTR_MASK: Nested %OVS_KEY_ATTR_* attributes specifying the
+ * mask bits for wildcarded flow match. Mask bit value '1' specifies exact
+ * match with corresponding flow key bit, while mask bit value '0' specifies
+ * a wildcarded match. Omitting attribute is treated as wildcarding all
+ * corresponding fields. Optional for all requests. If not present,
+ * all flow key bits are exact match bits.
  *
  * These attributes follow the &struct ovs_header within the Generic Netlink
  * payload for %OVS_FLOW_* commands.
@@ -418,6 +428,7 @@ enum ovs_flow_attr {
        OVS_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */
        OVS_FLOW_ATTR_USED,      /* u64 msecs last used in monotonic time. */
        OVS_FLOW_ATTR_CLEAR,     /* Flag to clear stats, tcp_flags, used. */
+       OVS_FLOW_ATTR_MASK,      /* Sequence of OVS_KEY_ATTR_* attributes. */
        __OVS_FLOW_ATTR_MAX
 };
 
@@ -448,13 +459,13 @@ enum ovs_sample_attr {
  * enum ovs_userspace_attr - Attributes for %OVS_ACTION_ATTR_USERSPACE action.
  * @OVS_USERSPACE_ATTR_PID: u32 Netlink PID to which the %OVS_PACKET_CMD_ACTION
  * message should be sent.  Required.
- * @OVS_USERSPACE_ATTR_USERDATA: If present, its u64 argument is copied to the
- * %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA,
+ * @OVS_USERSPACE_ATTR_USERDATA: If present, its variable-length argument is
+ * copied to the %OVS_PACKET_CMD_ACTION message as %OVS_PACKET_ATTR_USERDATA.
  */
 enum ovs_userspace_attr {
        OVS_USERSPACE_ATTR_UNSPEC,
        OVS_USERSPACE_ATTR_PID,       /* u32 Netlink PID to receive upcalls. */
-       OVS_USERSPACE_ATTR_USERDATA,  /* u64 optional user-specified cookie. */
+       OVS_USERSPACE_ATTR_USERDATA,  /* Optional user-specified cookie. */
        __OVS_USERSPACE_ATTR_MAX
 };