#include <sys/socket.h>
#endif
-#include <linux/if_link.h>
#include <linux/netlink.h>
\f
/* datapaths. */
* the &struct ovs_header. Always present in notifications. Required in
* %OVS_DP_NEW requests. May be used as an alternative to specifying
* dp_ifindex in other requests (with a dp_ifindex of 0).
+ * @OVS_DP_ATTR_UPCALL_PID: The Netlink socket in userspace that is initially
+ * set on the datapath port (for OVS_ACTION_ATTR_MISS). Only valid on
+ * %OVS_DP_CMD_NEW requests. A value of zero indicates that upcalls should
+ * not be sent.
* @OVS_DP_ATTR_STATS: Statistics about packets that have passed through the
* datapath. Always present in notifications.
* @OVS_DP_ATTR_IPV4_FRAGS: One of %OVS_DP_FRAG_*. Always present in
* notifications. May be included in %OVS_DP_NEW or %OVS_DP_SET requests to
* change the fragment handling policy.
- * @OVS_DP_ATTR_SAMPLING: 32-bit fraction of packets to sample with
- * @OVS_PACKET_CMD_SAMPLE. A value of 0 samples no packets, a value of
- * %UINT32_MAX samples all packets, and intermediate values sample intermediate
- * fractions of packets.
- * @OVS_DP_ATTR_MCGROUPS: Nested attributes with multicast groups. Each nested
- * attribute has a %OVS_PACKET_CMD_* type with a 32-bit value giving the
- * Generic Netlink multicast group number used for sending this datapath's
- * messages with that command type up to userspace.
*
* These attributes follow the &struct ovs_header within the Generic Netlink
* payload for %OVS_DP_* commands.
enum ovs_datapath_attr {
OVS_DP_ATTR_UNSPEC,
OVS_DP_ATTR_NAME, /* name of dp_ifindex netdev */
+ OVS_DP_ATTR_UPCALL_PID, /* Netlink PID to receive upcalls */
OVS_DP_ATTR_STATS, /* struct ovs_dp_stats */
OVS_DP_ATTR_IPV4_FRAGS, /* 32-bit enum ovs_frag_handling */
- OVS_DP_ATTR_SAMPLING, /* 32-bit fraction of packets to sample. */
- OVS_DP_ATTR_MCGROUPS, /* Nested attributes with multicast groups. */
__OVS_DP_ATTR_MAX
};
uint64_t n_flows; /* Number of flows present */
};
+struct ovs_vport_stats {
+ uint64_t rx_packets; /* total packets received */
+ uint64_t tx_packets; /* total packets transmitted */
+ uint64_t rx_bytes; /* total bytes received */
+ uint64_t tx_bytes; /* total bytes transmitted */
+ uint64_t rx_errors; /* bad packets received */
+ uint64_t tx_errors; /* packet transmit problems */
+ uint64_t rx_dropped; /* no space in linux buffers */
+ uint64_t tx_dropped; /* no space available in linux */
+};
+
/* Logical ports. */
#define OVSP_LOCAL ((uint16_t)0)
\f
/* Kernel-to-user notifications. */
OVS_PACKET_CMD_MISS, /* Flow table miss. */
OVS_PACKET_CMD_ACTION, /* OVS_ACTION_ATTR_USERSPACE action. */
- OVS_PACKET_CMD_SAMPLE, /* Sampled packet. */
/* User commands. */
OVS_PACKET_CMD_EXECUTE /* Apply actions to a packet. */
* extracted from the packet as nested %OVS_KEY_ATTR_* attributes. This allows
* userspace to adapt its flow setup strategy by comparing its notion of the
* flow key against the kernel's.
+ * @OVS_PACKET_ATTR_ACTIONS: Contains actions for the packet. Used
+ * for %OVS_PACKET_CMD_EXECUTE. It has nested %OVS_ACTION_ATTR_* attributes.
+ * @OVS_PACKET_ATTR_UPCALL_PID: Optionally present for OVS_PACKET_CMD_EXECUTE.
+ * The Netlink socket in userspace that OVS_PACKET_CMD_USERSPACE and
+ * OVS_PACKET_CMD_SAMPLE upcalls will be directed to for actions triggered by
+ * this packet. A value of zero indicates that upcalls should not be sent.
* @OVS_PACKET_ATTR_USERDATA: Present for an %OVS_PACKET_CMD_ACTION
* notification if the %OVS_ACTION_ATTR_USERSPACE, action's argument was
* nonzero.
- * @OVS_PACKET_ATTR_SAMPLE_POOL: Present for %OVS_PACKET_CMD_SAMPLE. Contains
- * the number of packets processed so far that were candidates for sampling.
- * @OVS_PACKET_ATTR_ACTIONS: Present for %OVS_PACKET_CMD_SAMPLE. Contains a
- * copy of the actions applied to the packet, as nested %OVS_ACTION_ATTR_*
- * attributes.
*
* These attributes follow the &struct ovs_header within the Generic Netlink
* payload for %OVS_PACKET_* commands.
OVS_PACKET_ATTR_UNSPEC,
OVS_PACKET_ATTR_PACKET, /* Packet data. */
OVS_PACKET_ATTR_KEY, /* Nested OVS_KEY_ATTR_* attributes. */
- OVS_PACKET_ATTR_USERDATA, /* u64 OVS_ACTION_ATTR_USERSPACE arg. */
- OVS_PACKET_ATTR_SAMPLE_POOL, /* # sampling candidate packets so far. */
OVS_PACKET_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
+ OVS_PACKET_ATTR_UPCALL_PID, /* Netlink PID to receive upcalls. */
+ OVS_PACKET_ATTR_USERDATA, /* u64 OVS_ACTION_ATTR_USERSPACE arg. */
__OVS_PACKET_ATTR_MAX
};
* @OVS_VPORT_ATTR_NAME: Name of vport. For a vport based on a network device
* this is the name of the network device. Maximum length %IFNAMSIZ-1 bytes
* plus a null terminator.
- * @OVS_VPORT_ATTR_STATS: A &struct rtnl_link_stats64 giving statistics for
+ * @OVS_VPORT_ATTR_UPCALL_PID: The Netlink socket in userspace that
+ * OVS_PACKET_CMD_MISS upcalls will be directed to for packets received on
+ * this port. A value of zero indicates that upcalls should not be sent.
+ * @OVS_VPORT_ATTR_STATS: A &struct ovs_vport_stats giving statistics for
* packets sent or received through the vport.
* @OVS_VPORT_ATTR_ADDRESS: A 6-byte Ethernet address for the vport.
* @OVS_VPORT_ATTR_IFINDEX: ifindex of the underlying network device, if any.
OVS_VPORT_ATTR_PORT_NO, /* port number within datapath */
OVS_VPORT_ATTR_TYPE, /* 32-bit OVS_VPORT_TYPE_* constant. */
OVS_VPORT_ATTR_NAME, /* string name, up to IFNAMSIZ bytes long */
- OVS_VPORT_ATTR_STATS, /* struct rtnl_link_stats64 */
+ OVS_VPORT_ATTR_UPCALL_PID, /* Netlink PID to receive upcalls */
+ OVS_VPORT_ATTR_STATS, /* struct ovs_vport_stats */
OVS_VPORT_ATTR_ADDRESS, /* hardware address */
OVS_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */
OVS_VPORT_ATTR_IFINDEX, /* 32-bit ifindex of backing netdev */
* @OVS_FLOW_ATTR_ACTIONS: Nested %OVS_ACTION_ATTR_* attributes specifying
* the actions to take for packets that match the key. Always present in
* notifications. Required for %OVS_FLOW_CMD_NEW requests, optional
+ * @OVS_FLOW_ATTR_UPCALL_PID: The Netlink socket in userspace that
+ * OVS_PACKET_CMD_USERSPACE and OVS_PACKET_CMD_SAMPLE upcalls will be
+ * directed to for packets received on this port. A value of zero indicates
+ * that upcalls should not be sent.
* on %OVS_FLOW_CMD_SET request to change the existing actions, ignored for
* other requests.
* @OVS_FLOW_ATTR_STATS: &struct ovs_flow_stats giving statistics for this
OVS_FLOW_ATTR_UNSPEC,
OVS_FLOW_ATTR_KEY, /* Sequence of OVS_KEY_ATTR_* attributes. */
OVS_FLOW_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
+ OVS_FLOW_ATTR_UPCALL_PID, /* Netlink PID to receive upcalls. */
OVS_FLOW_ATTR_STATS, /* struct ovs_flow_stats. */
OVS_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */
OVS_FLOW_ATTR_USED, /* u64 msecs last used in monotonic time. */
#define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1)
+/**
+ * enum ovs_sample_attr - Attributes for OVS_ACTION_ATTR_SAMPLE
+ * @OVS_SAMPLE_ATTR_PROBABILITY: 32-bit fraction of packets to sample with
+ * @OVS_ACTION_ATTR_SAMPLE. A value of 0 samples no packets, a value of
+ * %UINT32_MAX samples all packets and intermediate values sample intermediate
+ * fractions of packets.
+ * @OVS_SAMPLE_ATTR_ACTIONS: Set of actions to execute in sampling event.
+ * Actions are passed as nested attributes.
+ */
+enum ovs_sample_attr {
+ OVS_SAMPLE_ATTR_UNSPEC,
+ OVS_SAMPLE_ATTR_PROBABILITY, /* u32 number */
+ OVS_SAMPLE_ATTR_ACTIONS, /* Nested OVS_ACTION_ATTR_* attributes. */
+ __OVS_SAMPLE_ATTR_MAX,
+};
+
+#define OVS_SAMPLE_ATTR_MAX (__OVS_SAMPLE_ATTR_MAX - 1)
+
/* Action types. */
enum ovs_action_type {
OVS_ACTION_ATTR_UNSPEC,
OVS_ACTION_ATTR_SET_TUNNEL, /* Set the encapsulating tunnel ID. */
OVS_ACTION_ATTR_SET_PRIORITY, /* Set skb->priority. */
OVS_ACTION_ATTR_POP_PRIORITY, /* Restore original skb->priority. */
+ OVS_ACTION_ATTR_SAMPLE, /* Execute list of actions at given
+ probability. */
__OVS_ACTION_ATTR_MAX
};