X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fopenvswitch%2Fdatapath-protocol.h;h=8ed1c7f413a554b5d42a912669bb571eef52ab81;hb=f613a0d72c521ca3a4eeb2c29ac523f6fdf72667;hp=25499aa1be90e2ebbd1b112cbe925253d6b599ad;hpb=36956a7d33c9ee204fcb184484a5aaacbd9ecef8;p=sliver-openvswitch.git diff --git a/include/openvswitch/datapath-protocol.h b/include/openvswitch/datapath-protocol.h index 25499aa1b..8ed1c7f41 100644 --- a/include/openvswitch/datapath-protocol.h +++ b/include/openvswitch/datapath-protocol.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2009, 2010 Nicira Networks. + * Copyright (c) 2009, 2010, 2011 Nicira Networks. * * 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 @@ -37,19 +37,9 @@ * ---------------------------------------------------------------------- */ -/* Protocol between userspace and kernel datapath. - * - * Be sure to update datapath/odp-compat.h if you change any of the structures - * in here. */ - #ifndef OPENVSWITCH_DATAPATH_PROTOCOL_H #define OPENVSWITCH_DATAPATH_PROTOCOL_H 1 -/* The ovs_be types indicate that an object is in big-endian, not - * native-endian, byte order. They are otherwise equivalent to uint_t. - * The Linux kernel already has __be types for this, which take on - * additional semantics when the "sparse" static checker is used, so we use - * those types when compiling the kernel. */ #ifdef __KERNEL__ #include #include @@ -61,310 +51,386 @@ #include #endif -#ifndef __aligned_u64 -#define __aligned_u64 __u64 __attribute__((aligned(8))) -#define __aligned_be64 __be64 __attribute__((aligned(8))) -#define __aligned_le64 __le64 __attribute__((aligned(8))) -#endif - -#include #include + +/* datapaths. */ + +#define OVS_DATAPATH_FAMILY "ovs_datapath" +#define OVS_DATAPATH_MCGROUP "ovs_datapath" + +enum ovs_datapath_cmd { + OVS_DP_CMD_UNSPEC, + OVS_DP_CMD_NEW, + OVS_DP_CMD_DEL, + OVS_DP_CMD_GET, + OVS_DP_CMD_SET +}; -#define ODP_MAX 256 /* Maximum number of datapaths. */ - -#define ODP_DP_CREATE _IO('O', 0) -#define ODP_DP_DESTROY _IO('O', 1) -#define ODP_DP_STATS _IOW('O', 2, struct odp_stats) - -#define ODP_GET_DROP_FRAGS _IOW('O', 3, int) -#define ODP_SET_DROP_FRAGS _IOR('O', 4, int) - -#define ODP_GET_LISTEN_MASK _IOW('O', 5, int) -#define ODP_SET_LISTEN_MASK _IOR('O', 6, int) - -#define ODP_VPORT_ATTACH _IOR('O', 7, struct odp_port) -#define ODP_VPORT_DETACH _IOR('O', 8, int) -#define ODP_VPORT_QUERY _IOWR('O', 9, struct odp_port) -#define ODP_VPORT_LIST _IOWR('O', 10, struct odp_portvec) - -#define ODP_FLOW_GET _IOWR('O', 13, struct odp_flowvec) -#define ODP_FLOW_PUT _IOWR('O', 14, struct odp_flow) -#define ODP_FLOW_DUMP _IOWR('O', 15, struct odp_flow_dump) -#define ODP_FLOW_FLUSH _IO('O', 16) -#define ODP_FLOW_DEL _IOWR('O', 17, struct odp_flow) - -#define ODP_EXECUTE _IOR('O', 18, struct odp_execute) - -#define ODP_SET_SFLOW_PROBABILITY _IOR('O', 19, int) -#define ODP_GET_SFLOW_PROBABILITY _IOW('O', 20, int) - -#define ODP_VPORT_MOD _IOR('O', 22, struct odp_port) -#define ODP_VPORT_STATS_GET _IOWR('O', 24, struct odp_vport_stats_req) -#define ODP_VPORT_ETHER_GET _IOWR('O', 25, struct odp_vport_ether) -#define ODP_VPORT_ETHER_SET _IOW('O', 26, struct odp_vport_ether) -#define ODP_VPORT_MTU_GET _IOWR('O', 27, struct odp_vport_mtu) -#define ODP_VPORT_MTU_SET _IOW('O', 28, struct odp_vport_mtu) -#define ODP_VPORT_STATS_SET _IOWR('O', 29, struct odp_vport_stats_req) +/** + * struct ovs_header - header for OVS Generic Netlink messages. + * @dp_ifindex: ifindex of local port for datapath (0 to make a request not + * specific to a datapath). + * + * Attributes following the header are specific to a particular OVS Generic + * Netlink family, but all of the OVS families use this header. + */ +struct ovs_header { + int dp_ifindex; +}; + +/** + * enum ovs_datapath_attr - attributes for %OVS_DP_* commands. + * @OVS_DP_ATTR_NAME: Name of the network device that serves as the "local + * port". This is the name of the network device whose dp_ifindex is given in + * 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_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_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 +}; -struct odp_stats { - /* Flows. */ - uint32_t n_flows; /* Number of flows in flow table. */ - uint32_t cur_capacity; /* Current flow table capacity. */ - uint32_t max_capacity; /* Maximum expansion of flow table capacity. */ +#define OVS_DP_ATTR_MAX (__OVS_DP_ATTR_MAX - 1) - /* Ports. */ - uint32_t n_ports; /* Current number of ports. */ - uint32_t max_ports; /* Maximum supported number of ports. */ +/** + * enum ovs_frag_handling - policy for handling received IPv4 fragments. + * @OVS_DP_FRAG_ZERO: Treat IP fragments as IP protocol 0 and transport ports + * zero. + * @OVS_DP_FRAG_DROP: Drop IP fragments. Do not pass them through the flow + * table or up to userspace. + */ +enum ovs_frag_handling { + OVS_DP_FRAG_UNSPEC, + OVS_DP_FRAG_ZERO, /* Treat IP fragments as transport port 0. */ + OVS_DP_FRAG_DROP /* Drop IP fragments. */ +}; - /* Lookups. */ +struct ovs_dp_stats { uint64_t n_frags; /* Number of dropped IP fragments. */ uint64_t n_hit; /* Number of flow table matches. */ uint64_t n_missed; /* Number of flow table misses. */ uint64_t n_lost; /* Number of misses not sent to userspace. */ + uint64_t n_flows; /* Number of flows present */ +}; - /* Queues. */ - uint16_t max_miss_queue; /* Max length of ODPL_MISS queue. */ - uint16_t max_action_queue; /* Max length of ODPL_ACTION queue. */ - uint16_t max_sflow_queue; /* Max length of ODPL_SFLOW queue. */ +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 */ + int64_t tx_dropped; /* no space available in linux */ }; /* Logical ports. */ -#define ODPP_LOCAL ((uint16_t)0) -#define ODPP_NONE ((uint16_t)-1) - -/* Listening channels. */ -#define _ODPL_MISS_NR 0 /* Packet missed in flow table. */ -#define ODPL_MISS (1 << _ODPL_MISS_NR) -#define _ODPL_ACTION_NR 1 /* Packet output to ODPP_CONTROLLER. */ -#define ODPL_ACTION (1 << _ODPL_ACTION_NR) -#define _ODPL_SFLOW_NR 2 /* sFlow samples. */ -#define ODPL_SFLOW (1 << _ODPL_SFLOW_NR) -#define ODPL_ALL (ODPL_MISS | ODPL_ACTION | ODPL_SFLOW) +#define OVSP_LOCAL ((uint16_t)0) + +#define OVS_PACKET_FAMILY "ovs_packet" + +enum ovs_packet_cmd { + OVS_PACKET_CMD_UNSPEC, + + /* 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. */ +}; /** - * struct odp_msg - format of messages read from datapath fd. - * @length: Total length of message, including this header. - * @type: One of the %_ODPL_* constants. - * @port: Port that received the packet embedded in this message. - * @arg: Argument value whose meaning depends on @type. + * enum ovs_packet_attr - attributes for %OVS_PACKET_* commands. + * @OVS_PACKET_ATTR_PACKET: Present for all notifications. Contains the entire + * packet as received, from the start of the Ethernet header onward. For + * %OVS_PACKET_CMD_ACTION, %OVS_PACKET_ATTR_PACKET reflects changes made by + * actions preceding %OVS_ACTION_ATTR_USERSPACE, but %OVS_PACKET_ATTR_KEY is + * the flow key extracted from the packet as originally received. + * @OVS_PACKET_ATTR_KEY: Present for all notifications. Contains the flow key + * 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_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. * - * For @type == %_ODPL_MISS_NR, the header is followed by packet data. The - * @arg member is the ID (in network byte order) of the tunnel that - * encapsulated this packet. It is 0 if the packet was not received on a tunnel. - * - * For @type == %_ODPL_ACTION_NR, the header is followed by packet data. The - * @arg member is copied from the %ODPAT_CONTROLLER action that caused the - * &struct odp_msg to be composed. - * - * For @type == %_ODPL_SFLOW_NR, the header is followed by &struct - * odp_sflow_sample_header, then by a series of Netlink attributes (whose - * length is specified in &struct odp_sflow_sample_header), then by packet - * data. + * These attributes follow the &struct ovs_header within the Generic Netlink + * payload for %OVS_PACKET_* commands. */ -struct odp_msg { - uint32_t length; - uint16_t type; - uint16_t port; - __aligned_u64 arg; +enum ovs_packet_attr { + 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_MAX +}; + +#define OVS_PACKET_ATTR_MAX (__OVS_PACKET_ATTR_MAX - 1) + +enum ovs_vport_type { + OVS_VPORT_TYPE_UNSPEC, + OVS_VPORT_TYPE_NETDEV, /* network device */ + OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */ + OVS_VPORT_TYPE_PATCH, /* virtual tunnel connecting two vports */ + OVS_VPORT_TYPE_GRE, /* GRE tunnel */ + OVS_VPORT_TYPE_CAPWAP, /* CAPWAP tunnel */ + __OVS_VPORT_TYPE_MAX +}; + +#define OVS_VPORT_TYPE_MAX (__OVS_VPORT_TYPE_MAX - 1) + +#define OVS_VPORT_FAMILY "ovs_vport" +#define OVS_VPORT_MCGROUP "ovs_vport" + +enum ovs_vport_cmd { + OVS_VPORT_CMD_UNSPEC, + OVS_VPORT_CMD_NEW, + OVS_VPORT_CMD_DEL, + OVS_VPORT_CMD_GET, + OVS_VPORT_CMD_SET }; /** - * struct odp_sflow_sample_header - header added to sFlow sampled packet. - * @sample_pool: Number of packets that were candidates for sFlow sampling, - * regardless of whether they were actually chosen and sent down to userspace. - * @actions_len: Number of bytes of actions immediately following this header. + * enum ovs_vport_attr - attributes for %OVS_VPORT_* commands. + * @OVS_VPORT_ATTR_PORT_NO: 32-bit port number within datapath. + * @OVS_VPORT_ATTR_TYPE: 32-bit %OVS_VPORT_TYPE_* constant describing the type + * of vport. + * @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 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. + * + * These attributes follow the &struct ovs_header within the Generic Netlink + * payload for %OVS_VPORT_* commands. + * + * All attributes applicable to a given port are present in notifications. + * This means that, for example, a vport that has no corresponding network + * device would omit %OVS_VPORT_ATTR_IFINDEX. + * + * For %OVS_VPORT_CMD_NEW requests, the %OVS_VPORT_ATTR_TYPE and + * %OVS_VPORT_ATTR_NAME attributes are required. %OVS_VPORT_ATTR_PORT_NO is + * optional; if not specified a free port number is automatically selected. + * Whether %OVS_VPORT_ATTR_OPTIONS is required or optional depends on the type + * of vport. %OVS_VPORT_ATTR_STATS and %OVS_VPORT_ATTR_ADDRESS are optional, + * and other attributes are ignored. * - * This header follows &struct odp_msg when that structure's @type is - * %_ODPL_SFLOW_NR, and it is itself followed by a series of Netlink attributes - * (the number of bytes of which is specified in @actions_len) and then by - * packet data. + * For other requests, if %OVS_VPORT_ATTR_NAME is specified then it is used to + * look up the vport to operate on; otherwise dp_idx from the &struct + * ovs_header plus %OVS_VPORT_ATTR_PORT_NO determine the vport. */ -struct odp_sflow_sample_header { - uint32_t sample_pool; - uint32_t actions_len; +enum ovs_vport_attr { + OVS_VPORT_ATTR_UNSPEC, + 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 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_VPORT_ATTR_MAX }; -#define VPORT_TYPE_SIZE 16 -#define VPORT_CONFIG_SIZE 32 -struct odp_port { - char devname[16]; /* IFNAMSIZ */ - char type[VPORT_TYPE_SIZE]; - uint16_t port; - uint16_t reserved1; - uint32_t reserved2; - __aligned_u64 config[VPORT_CONFIG_SIZE / 8]; /* type-specific */ +#define OVS_VPORT_ATTR_MAX (__OVS_VPORT_ATTR_MAX - 1) + +/* OVS_VPORT_ATTR_OPTIONS attributes for patch vports. */ +enum { + OVS_PATCH_ATTR_UNSPEC, + OVS_PATCH_ATTR_PEER, /* name of peer vport, as a string */ + __OVS_PATCH_ATTR_MAX }; -struct odp_portvec { - struct odp_port *ports; - uint32_t n_ports; +#define OVS_PATCH_ATTR_MAX (__OVS_PATCH_ATTR_MAX - 1) + +/* Flows. */ + +#define OVS_FLOW_FAMILY "ovs_flow" +#define OVS_FLOW_MCGROUP "ovs_flow" + +enum ovs_flow_cmd { + OVS_FLOW_CMD_UNSPEC, + OVS_FLOW_CMD_NEW, + OVS_FLOW_CMD_DEL, + OVS_FLOW_CMD_GET, + OVS_FLOW_CMD_SET }; -struct odp_flow_stats { +struct ovs_flow_stats { uint64_t n_packets; /* Number of matched packets. */ uint64_t n_bytes; /* Number of matched bytes. */ - uint64_t used_sec; /* Time last used, in system monotonic time. */ - uint32_t used_nsec; - uint8_t tcp_flags; - uint8_t reserved; - uint16_t error; /* Used by ODP_FLOW_GET. */ }; -enum odp_key_type { - ODP_KEY_ATTR_UNSPEC, - ODP_KEY_ATTR_TUN_ID, /* 64-bit tunnel ID */ - ODP_KEY_ATTR_IN_PORT, /* 32-bit ODP port number */ - ODP_KEY_ATTR_ETHERNET, /* struct odp_key_ethernet */ - ODP_KEY_ATTR_8021Q, /* struct odp_key_8021q */ - ODP_KEY_ATTR_ETHERTYPE, /* 16-bit Ethernet type */ - ODP_KEY_ATTR_IPV4, /* struct odp_key_ipv4 */ - ODP_KEY_ATTR_TCP, /* struct odp_key_tcp */ - ODP_KEY_ATTR_UDP, /* struct odp_key_udp */ - ODP_KEY_ATTR_ICMP, /* struct odp_key_icmp */ - ODP_KEY_ATTR_ARP, /* struct odp_key_arp */ - __ODP_KEY_ATTR_MAX +enum ovs_key_type { + OVS_KEY_ATTR_UNSPEC, + OVS_KEY_ATTR_TUN_ID, /* 64-bit tunnel ID */ + OVS_KEY_ATTR_IN_PORT, /* 32-bit OVS dp port number */ + OVS_KEY_ATTR_ETHERNET, /* struct ovs_key_ethernet */ + OVS_KEY_ATTR_8021Q, /* struct ovs_key_8021q */ + OVS_KEY_ATTR_ETHERTYPE, /* 16-bit Ethernet type */ + OVS_KEY_ATTR_IPV4, /* struct ovs_key_ipv4 */ + OVS_KEY_ATTR_IPV6, /* struct ovs_key_ipv6 */ + OVS_KEY_ATTR_TCP, /* struct ovs_key_tcp */ + OVS_KEY_ATTR_UDP, /* struct ovs_key_udp */ + OVS_KEY_ATTR_ICMP, /* struct ovs_key_icmp */ + OVS_KEY_ATTR_ICMPV6, /* struct ovs_key_icmpv6 */ + OVS_KEY_ATTR_ARP, /* struct ovs_key_arp */ + OVS_KEY_ATTR_ND, /* struct ovs_key_nd */ + __OVS_KEY_ATTR_MAX }; -#define ODP_KEY_ATTR_MAX (__ODP_KEY_ATTR_MAX - 1) +#define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1) -struct odp_key_ethernet { +struct ovs_key_ethernet { uint8_t eth_src[6]; uint8_t eth_dst[6]; }; -struct odp_key_8021q { +struct ovs_key_8021q { ovs_be16 q_tpid; ovs_be16 q_tci; }; -struct odp_key_ipv4 { +struct ovs_key_ipv4 { ovs_be32 ipv4_src; ovs_be32 ipv4_dst; uint8_t ipv4_proto; uint8_t ipv4_tos; }; -struct odp_key_tcp { +struct ovs_key_ipv6 { + ovs_be32 ipv6_src[4]; + ovs_be32 ipv6_dst[4]; + uint8_t ipv6_proto; + uint8_t ipv6_tos; +}; + +struct ovs_key_tcp { ovs_be16 tcp_src; ovs_be16 tcp_dst; }; -struct odp_key_udp { +struct ovs_key_udp { ovs_be16 udp_src; ovs_be16 udp_dst; }; -struct odp_key_icmp { +struct ovs_key_icmp { uint8_t icmp_type; uint8_t icmp_code; }; -struct odp_key_arp { +struct ovs_key_icmpv6 { + uint8_t icmpv6_type; + uint8_t icmpv6_code; +}; + +struct ovs_key_arp { ovs_be32 arp_sip; ovs_be32 arp_tip; ovs_be16 arp_op; + uint8_t arp_sha[6]; + uint8_t arp_tha[6]; }; -/* Flags for ODP_FLOW. */ -#define ODPFF_ZERO_TCP_FLAGS (1 << 0) /* Zero the TCP flags. */ -#define ODPFF_EOF (1 << 1) /* ODP_FLOW_DUMP: end of flow table. */ - -struct odp_flow { - struct odp_flow_stats stats; - struct nlattr *key; - uint32_t key_len; - struct nlattr *actions; - uint32_t actions_len; - uint32_t flags; -}; - -/* Flags for ODP_FLOW_PUT. */ -#define ODPPF_CREATE (1 << 0) /* Allow creating a new flow. */ -#define ODPPF_MODIFY (1 << 1) /* Allow modifying an existing flow. */ -#define ODPPF_ZERO_STATS (1 << 2) /* Zero the stats of an existing flow. */ - -/* ODP_FLOW_PUT argument. */ -struct odp_flow_put { - struct odp_flow flow; - uint32_t flags; -}; - -struct odp_flowvec { - struct odp_flow *flows; - uint32_t n_flows; +struct ovs_key_nd { + uint32_t nd_target[4]; + uint8_t nd_sll[6]; + uint8_t nd_tll[6]; }; -/* ODP_FLOW_DUMP argument. - * - * This is used to iterate through the flow table flow-by-flow. Each - * ODP_FLOW_DUMP call either stores a new odp_flow into 'flow' or stores - * ODPFF_EOF into flow->flags to indicate that the end of the table has been - * reaches, and updates 'state' in-place. +/** + * enum ovs_flow_attr - attributes for %OVS_FLOW_* commands. + * @OVS_FLOW_ATTR_KEY: Nested %OVS_KEY_ATTR_* attributes specifying the flow + * key. Always present in notifications. Required for all requests (except + * dumps). + * @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 + * 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 + * flow. Present in notifications if the stats would be nonzero. Ignored in + * requests. + * @OVS_FLOW_ATTR_TCP_FLAGS: An 8-bit value giving the OR'd value of all of the + * TCP flags seen on packets in this flow. Only present in notifications for + * TCP flows, and only if it would be nonzero. Ignored in requests. + * @OVS_FLOW_ATTR_USED: A 64-bit integer giving the time, in milliseconds on + * the system monotonic clock, at which a packet was last processed for this + * flow. Only present in notifications if a packet has been processed for this + * flow. Ignored in requests. + * @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. * - * Before the first call, zero 'state'. The format of 'state' is otherwise - * unspecified. + * These attributes follow the &struct ovs_header within the Generic Netlink + * payload for %OVS_FLOW_* commands. */ -struct odp_flow_dump { - struct odp_flow *flow; - uint32_t state[2]; -}; - -/* Action types. */ -enum odp_action_type { - ODPAT_UNSPEC, - ODPAT_OUTPUT, /* Output to switch port. */ - ODPAT_CONTROLLER, /* Send copy to controller. */ - ODPAT_SET_DL_TCI, /* Set the 802.1q TCI value. */ - ODPAT_STRIP_VLAN, /* Strip the 802.1q header. */ - ODPAT_SET_DL_SRC, /* Ethernet source address. */ - ODPAT_SET_DL_DST, /* Ethernet destination address. */ - ODPAT_SET_NW_SRC, /* IPv4 source address. */ - ODPAT_SET_NW_DST, /* IPv4 destination address. */ - ODPAT_SET_NW_TOS, /* IP ToS/DSCP field (6 bits). */ - ODPAT_SET_TP_SRC, /* TCP/UDP source port. */ - ODPAT_SET_TP_DST, /* TCP/UDP destination port. */ - ODPAT_SET_TUNNEL, /* Set the encapsulating tunnel ID. */ - ODPAT_SET_PRIORITY, /* Set skb->priority. */ - ODPAT_POP_PRIORITY, /* Restore original skb->priority. */ - ODPAT_DROP_SPOOFED_ARP, /* Drop ARPs with spoofed source MAC. */ - __ODPAT_MAX -}; - -#define ODPAT_MAX (__ODPAT_MAX - 1) - -struct odp_execute { - struct nlattr *actions; - uint32_t actions_len; - - const void *data; - uint32_t length; -}; - -#define VPORT_TYPE_SIZE 16 -struct odp_vport_add { - char port_type[VPORT_TYPE_SIZE]; - char devname[16]; /* IFNAMSIZ */ - void *config; -}; - -struct odp_vport_mod { - char devname[16]; /* IFNAMSIZ */ - void *config; +enum ovs_flow_attr { + 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_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. */ + OVS_FLOW_ATTR_CLEAR, /* Flag to clear stats, tcp_flags, used. */ + __OVS_FLOW_ATTR_MAX }; -struct odp_vport_stats_req { - char devname[16]; /* IFNAMSIZ */ - struct rtnl_link_stats64 stats; -}; +#define OVS_FLOW_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1) -struct odp_vport_ether { - char devname[16]; /* IFNAMSIZ */ - unsigned char ether_addr[6]; +/* Action types. */ +enum ovs_action_type { + OVS_ACTION_ATTR_UNSPEC, + OVS_ACTION_ATTR_OUTPUT, /* Output to switch port. */ + OVS_ACTION_ATTR_USERSPACE, /* Send copy to userspace. */ + OVS_ACTION_ATTR_PUSH_VLAN, /* Set the 802.1q TCI value. */ + OVS_ACTION_ATTR_POP_VLAN, /* Strip the 802.1q header. */ + OVS_ACTION_ATTR_SET_DL_SRC, /* Ethernet source address. */ + OVS_ACTION_ATTR_SET_DL_DST, /* Ethernet destination address. */ + OVS_ACTION_ATTR_SET_NW_SRC, /* IPv4 source address. */ + OVS_ACTION_ATTR_SET_NW_DST, /* IPv4 destination address. */ + OVS_ACTION_ATTR_SET_NW_TOS, /* IP ToS/DSCP field (6 bits). */ + OVS_ACTION_ATTR_SET_TP_SRC, /* TCP/UDP source port. */ + OVS_ACTION_ATTR_SET_TP_DST, /* TCP/UDP destination port. */ + 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_MAX }; -struct odp_vport_mtu { - char devname[16]; /* IFNAMSIZ */ - uint16_t mtu; -}; +#define OVS_ACTION_ATTR_MAX (__OVS_ACTION_ATTR_MAX - 1) #endif /* openvswitch/datapath-protocol.h */