X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fopenvswitch%2Fdatapath-protocol.h;h=13b7d9d1a05412501e1674f8cc6cc6f930dab2a3;hb=d31f1109f10e5ffb9bf266306b913ebf23781666;hp=6c5354548ea4ae38e373f5f94728973d326708a3;hpb=02dd3123a0e312f1d33403e744af52dd6096f12d;p=sliver-openvswitch.git diff --git a/include/openvswitch/datapath-protocol.h b/include/openvswitch/datapath-protocol.h index 6c5354548..13b7d9d1a 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 @@ -37,329 +37,403 @@ * ---------------------------------------------------------------------- */ -/* Protocol between userspace and kernel datapath. */ +/* 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 +#define ovs_be16 __be16 +#define ovs_be32 __be32 +#define ovs_be64 __be64 #else -#include +#include "openvswitch/types.h" +#include #endif -#include - -#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) +#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 -#define ODP_GET_LISTEN_MASK _IOW('O', 5, int) -#define ODP_SET_LISTEN_MASK _IOR('O', 6, int) +#include +#include + +/* datapaths. */ -#define ODP_PORT_ADD _IOR('O', 7, struct odp_port) -#define ODP_PORT_DEL _IOR('O', 8, int) -#define ODP_PORT_QUERY _IOWR('O', 9, struct odp_port) -#define ODP_PORT_LIST _IOWR('O', 10, struct odp_portvec) +#define ODP_DATAPATH_FAMILY "odp_datapath" +#define ODP_DATAPATH_MCGROUP "odp_datapath" -#define ODP_PORT_GROUP_SET _IOR('O', 11, struct odp_port_group) -#define ODP_PORT_GROUP_GET _IOWR('O', 12, struct odp_port_group) +enum odp_datapath_cmd { + ODP_DP_CMD_UNSPEC, + ODP_DP_CMD_NEW, + ODP_DP_CMD_DEL, + ODP_DP_CMD_GET, + ODP_DP_CMD_SET +}; -#define ODP_FLOW_GET _IOWR('O', 13, struct odp_flow) -#define ODP_FLOW_PUT _IOWR('O', 14, struct odp_flow) -#define ODP_FLOW_LIST _IOWR('O', 15, struct odp_flowvec) -#define ODP_FLOW_FLUSH _IO('O', 16) -#define ODP_FLOW_DEL _IOWR('O', 17, struct odp_flow) +/** + * struct odp_header - header for ODP 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 ODP Generic + * Netlink family, but all of the ODP families use this header. + */ +struct odp_header { + int dp_ifindex; +}; + +/** + * enum odp_datapath_attr - attributes for %ODP_DP_* commands. + * @ODP_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 odp_header. Always present in notifications. Required in + * %ODP_DP_NEW requests. May be used as an alternative to specifying + * dp_ifindex in other requests (with a dp_ifindex of 0). + * @ODP_DP_ATTR_STATS: Statistics about packets that have passed through the + * datapath. Always present in notifications. + * @ODP_DP_ATTR_IPV4_FRAGS: One of %ODP_DP_FRAG_*. Always present in + * notifications. May be included in %ODP_DP_NEW or %ODP_DP_SET requests to + * change the fragment handling policy. + * @ODP_DP_ATTR_SAMPLING: 32-bit fraction of packets to sample with + * @ODP_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. + * @ODP_DP_ATTR_MCGROUPS: Nested attributes with multicast groups. Each nested + * attribute has a %ODP_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 odp_header within the Generic Netlink + * payload for %ODP_DP_* commands. + */ +enum odp_datapath_attr { + ODP_DP_ATTR_UNSPEC, + ODP_DP_ATTR_NAME, /* name of dp_ifindex netdev */ + ODP_DP_ATTR_STATS, /* struct odp_stats */ + ODP_DP_ATTR_IPV4_FRAGS, /* 32-bit enum odp_frag_handling */ + ODP_DP_ATTR_SAMPLING, /* 32-bit fraction of packets to sample. */ + ODP_DP_ATTR_MCGROUPS, /* Nested attributes with multicast groups. */ + __ODP_DP_ATTR_MAX +}; -#define ODP_EXECUTE _IOR('O', 18, struct odp_execute) +#define ODP_DP_ATTR_MAX (__ODP_DP_ATTR_MAX - 1) -#define ODP_SET_SFLOW_PROBABILITY _IOR('O', 19, int) -#define ODP_GET_SFLOW_PROBABILITY _IOW('O', 20, int) +/** + * enum odp_frag_handling - policy for handling received IPv4 fragments. + * @ODP_DP_FRAG_ZERO: Treat IP fragments as IP protocol 0 and transport ports + * zero. + * @ODP_DP_FRAG_DROP: Drop IP fragments. Do not pass them through the flow + * table or up to userspace. + */ +enum odp_frag_handling { + ODP_DP_FRAG_UNSPEC, + ODP_DP_FRAG_ZERO, /* Treat IP fragments as transport port 0. */ + ODP_DP_FRAG_DROP /* Drop IP fragments. */ +}; struct odp_stats { - /* Flows. */ - __u32 n_flows; /* Number of flows in flow table. */ - __u32 cur_capacity; /* Current flow table capacity. */ - __u32 max_capacity; /* Maximum expansion of flow table capacity. */ - - /* Ports. */ - __u32 n_ports; /* Current number of ports. */ - __u32 max_ports; /* Maximum supported number of ports. */ - __u16 max_groups; /* Maximum number of port groups. */ - __u16 reserved; - - /* Lookups. */ - __u64 n_frags; /* Number of dropped IP fragments. */ - __u64 n_hit; /* Number of flow table matches. */ - __u64 n_missed; /* Number of flow table misses. */ - __u64 n_lost; /* Number of misses not sent to userspace. */ - - /* Queues. */ - __u16 max_miss_queue; /* Max length of ODPL_MISS queue. */ - __u16 max_action_queue; /* Max length of ODPL_ACTION queue. */ - __u16 max_sflow_queue; /* Max length of ODPL_SFLOW queue. */ + 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. */ }; /* Logical ports. */ -#define ODPP_LOCAL ((__u16)0) -#define ODPP_NONE ((__u16)-1) -#define ODPP_NORMAL ((__u16)-2) - -/* 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 ODPP_LOCAL ((uint16_t)0) + +#define ODP_PACKET_FAMILY "odp_packet" -/** - * struct odp_msg - format of messages read from datapath fd. - * @type: One of the %_ODPL_* constants. - * @length: Total length of message, including this header. - * @port: Port that received the packet embedded in this message. - * @reserved: Not currently used. Should be set to 0. - * @arg: Argument value whose meaning depends on @type. - * - * For @type == %_ODPL_MISS_NR, the header is followed by packet data. The - * @arg member is unused and set to 0. - * - * For @type == %_ODPL_ACTION_NR, the header is followed by packet data. The - * @arg member is copied from the &struct odp_action_controller 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 an array of &union odp_action (the number - * of which is specified in &struct odp_sflow_sample_header), then by packet - * data. - */ -struct odp_msg { - __u32 type; - __u32 length; - __u16 port; - __u16 reserved; - __u32 arg; +enum odp_packet_cmd { + ODP_PACKET_CMD_UNSPEC, + + /* Kernel-to-user notifications. */ + ODP_PACKET_CMD_MISS, /* Flow table miss. */ + ODP_PACKET_CMD_ACTION, /* ODP_ACTION_ATTR_CONTROLLER action. */ + ODP_PACKET_CMD_SAMPLE, /* Sampled packet. */ + + /* User commands. */ + ODP_PACKET_CMD_EXECUTE /* Apply actions to a packet. */ }; /** - * 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. - * @n_actions: Number of "union odp_action"s immediately following this header. + * enum odp_packet_attr - attributes for %ODP_PACKET_* commands. + * @ODP_PACKET_ATTR_PACKET: Present for all notifications. Contains the entire + * packet as received, from the start of the Ethernet header onward. For + * %ODP_PACKET_CMD_ACTION, %ODP_PACKET_ATTR_PACKET reflects changes made by + * actions preceding %ODP_ACTION_ATTR_CONTROLLER, but %ODP_PACKET_ATTR_KEY is + * the flow key extracted from the packet as originally received. + * @ODP_PACKET_ATTR_KEY: Present for all notifications. Contains the flow key + * extracted from the packet as nested %ODP_KEY_ATTR_* attributes. This allows + * userspace to adapt its flow setup strategy by comparing its notion of the + * flow key against the kernel's. + * @ODP_PACKET_ATTR_USERDATA: Present for an %ODP_PACKET_CMD_ACTION + * notification if the %ODP_ACTION_ATTR_CONTROLLER, action's argument was + * nonzero. + * @ODP_PACKET_ATTR_SAMPLE_POOL: Present for %ODP_PACKET_CMD_SAMPLE. Contains + * the number of packets processed so far that were candidates for sampling. + * @ODP_PACKET_ATTR_ACTIONS: Present for %ODP_PACKET_CMD_SAMPLE. Contains a + * copy of the actions applied to the packet, as nested %ODP_ACTION_ATTR_* + * attributes. * - * This header follows &struct odp_msg when that structure's @type is - * %_ODPL_SFLOW_NR, and it is itself followed by an array of &union odp_action - * (the number of which is specified in @n_actions) and then by packet data. + * These attributes follow the &struct odp_header within the Generic Netlink + * payload for %ODP_PACKET_* commands. */ -struct odp_sflow_sample_header { - __u32 sample_pool; - __u32 n_actions; +enum odp_packet_attr { + ODP_PACKET_ATTR_UNSPEC, + ODP_PACKET_ATTR_PACKET, /* Packet data. */ + ODP_PACKET_ATTR_KEY, /* Nested ODP_KEY_ATTR_* attributes. */ + ODP_PACKET_ATTR_USERDATA, /* u64 ODP_ACTION_ATTR_CONTROLLER arg. */ + ODP_PACKET_ATTR_SAMPLE_POOL, /* # sampling candidate packets so far. */ + ODP_PACKET_ATTR_ACTIONS, /* Nested ODP_ACTION_ATTR_* attributes. */ + __ODP_PACKET_ATTR_MAX }; -#define ODP_PORT_INTERNAL (1 << 0) /* This port is simulated. */ -struct odp_port { - char devname[16]; /* IFNAMSIZ */ - __u16 port; - __u16 flags; - __u32 reserved2; +#define ODP_PACKET_ATTR_MAX (__ODP_PACKET_ATTR_MAX - 1) + +enum odp_vport_type { + ODP_VPORT_TYPE_UNSPEC, + ODP_VPORT_TYPE_NETDEV, /* network device */ + ODP_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */ + ODP_VPORT_TYPE_PATCH, /* virtual tunnel connecting two vports */ + ODP_VPORT_TYPE_GRE, /* GRE tunnel */ + ODP_VPORT_TYPE_CAPWAP, /* CAPWAP tunnel */ + __ODP_VPORT_TYPE_MAX }; -struct odp_portvec { - struct odp_port *ports; - int n_ports; +#define ODP_VPORT_TYPE_MAX (__ODP_VPORT_TYPE_MAX - 1) + +#define ODP_VPORT_FAMILY "odp_vport" +#define ODP_VPORT_MCGROUP "odp_vport" + +enum odp_vport_cmd { + ODP_VPORT_CMD_UNSPEC, + ODP_VPORT_CMD_NEW, + ODP_VPORT_CMD_DEL, + ODP_VPORT_CMD_GET, + ODP_VPORT_CMD_SET }; -struct odp_port_group { - __u16 *ports; - __u16 n_ports; /* Number of ports. */ - __u16 group; /* Group number. */ +/** + * enum odp_vport_attr - attributes for %ODP_VPORT_* commands. + * @ODP_VPORT_ATTR_PORT_NO: 32-bit port number within datapath. + * @ODP_VPORT_ATTR_TYPE: 32-bit %ODP_VPORT_TYPE_* constant describing the type + * of vport. + * @ODP_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. + * @ODP_VPORT_ATTR_STATS: A &struct rtnl_link_stats64 giving statistics for + * packets sent or received through the vport. + * @ODP_VPORT_ATTR_ADDRESS: A 6-byte Ethernet address for the vport. + * @ODP_VPORT_ATTR_MTU: MTU for the vport. + * @ODP_VPORT_ATTR_IFINDEX: ifindex of the underlying network device, if any. + * @ODP_VPORT_ATTR_IFLINK: ifindex of the device on which packets are sent (for + * tunnels), if any. + * + * These attributes follow the &struct odp_header within the Generic Netlink + * payload for %ODP_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 %ODP_VPORT_ATTR_IFINDEX. + * + * For %ODP_VPORT_CMD_NEW requests, the %ODP_VPORT_ATTR_TYPE and + * %ODP_VPORT_ATTR_NAME attributes are required. %ODP_VPORT_ATTR_PORT_NO is + * optional; if not specified a free port number is automatically selected. + * Whether %ODP_VPORT_ATTR_OPTIONS is required or optional depends on the type + * of vport. %ODP_VPORT_ATTR_STATS, %ODP_VPORT_ATTR_ADDRESS, and + * %ODP_VPORT_ATTR_MTU are optional, and other attributes are ignored. + * + * For other requests, if %ODP_VPORT_ATTR_NAME is specified then it is used to + * look up the vport to operate on; otherwise dp_idx from the &struct + * odp_header plus %ODP_VPORT_ATTR_PORT_NO determine the vport. + */ +enum odp_vport_attr { + ODP_VPORT_ATTR_UNSPEC, + ODP_VPORT_ATTR_PORT_NO, /* port number within datapath */ + ODP_VPORT_ATTR_TYPE, /* 32-bit ODP_VPORT_TYPE_* constant. */ + ODP_VPORT_ATTR_NAME, /* string name, up to IFNAMSIZ bytes long */ + ODP_VPORT_ATTR_STATS, /* struct rtnl_link_stats64 */ + ODP_VPORT_ATTR_ADDRESS, /* hardware address */ + ODP_VPORT_ATTR_MTU, /* 32-bit maximum transmission unit */ + ODP_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */ + ODP_VPORT_ATTR_IFINDEX, /* 32-bit ifindex of backing netdev */ + ODP_VPORT_ATTR_IFLINK, /* 32-bit ifindex on which packets are sent */ + __ODP_VPORT_ATTR_MAX }; -struct odp_flow_stats { - __u64 n_packets; /* Number of matched packets. */ - __u64 n_bytes; /* Number of matched bytes. */ - __u64 used_sec; /* Time last used. */ - __u32 used_nsec; - __u8 tcp_flags; - __u8 ip_tos; - __u16 error; /* Used by ODP_FLOW_GET. */ -}; +#define ODP_VPORT_ATTR_MAX (__ODP_VPORT_ATTR_MAX - 1) -struct odp_flow_key { - __be32 nw_src; /* IP source address. */ - __be32 nw_dst; /* IP destination address. */ - __u16 in_port; /* Input switch port. */ - __be16 dl_vlan; /* Input VLAN. */ - __be16 dl_type; /* Ethernet frame type. */ - __be16 tp_src; /* TCP/UDP source port. */ - __be16 tp_dst; /* TCP/UDP destination port. */ - __u8 dl_src[ETH_ALEN]; /* Ethernet source address. */ - __u8 dl_dst[ETH_ALEN]; /* Ethernet destination address. */ - __u8 nw_proto; /* IP protocol or lower 8 bits of - ARP opcode. */ - __u8 dl_vlan_pcp; /* Input VLAN priority. */ - __u8 nw_tos; /* IP ToS (DSCP field, 6 bits). */ - __u8 reserved[3]; /* Align to 32-bits...must be zeroed. */ +/* ODP_VPORT_ATTR_OPTIONS attributes for patch vports. */ +enum { + ODP_PATCH_ATTR_UNSPEC, + ODP_PATCH_ATTR_PEER, /* name of peer vport, as a string */ + __ODP_PATCH_ATTR_MAX }; -/* Flags for ODP_FLOW. */ -#define ODPFF_ZERO_TCP_FLAGS (1 << 0) /* Zero the TCP flags. */ +#define ODP_PATCH_ATTR_MAX (__ODP_PATCH_ATTR_MAX - 1) + +/* Flows. */ -struct odp_flow { - struct odp_flow_stats stats; - struct odp_flow_key key; - union odp_action *actions; - __u32 n_actions; - __u32 flags; -}; +#define ODP_FLOW_FAMILY "odp_flow" +#define ODP_FLOW_MCGROUP "odp_flow" -/* 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. */ +enum odp_flow_cmd { + ODP_FLOW_CMD_UNSPEC, + ODP_FLOW_CMD_NEW, + ODP_FLOW_CMD_DEL, + ODP_FLOW_CMD_GET, + ODP_FLOW_CMD_SET +}; -/* ODP_FLOW_PUT argument. */ -struct odp_flow_put { - struct odp_flow flow; - __u32 flags; +struct odp_flow_stats { + uint64_t n_packets; /* Number of matched packets. */ + uint64_t n_bytes; /* Number of matched bytes. */ }; -struct odp_flowvec { - struct odp_flow *flows; - int n_flows; +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_IPV6, /* struct odp_key_ipv6 */ + 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_ICMPV6, /* struct odp_key_icmpv6 */ + ODP_KEY_ATTR_ARP, /* struct odp_key_arp */ + __ODP_KEY_ATTR_MAX }; -/* The VLAN id is 12 bits, so we can use the entire 16 bits to indicate - * special conditions. All ones is used to match that no VLAN id was - * set. */ -#define ODP_VLAN_NONE 0xffff +#define ODP_KEY_ATTR_MAX (__ODP_KEY_ATTR_MAX - 1) -/* Action types. */ -#define ODPAT_OUTPUT 0 /* Output to switch port. */ -#define ODPAT_OUTPUT_GROUP 1 /* Output to all ports in group. */ -#define ODPAT_CONTROLLER 2 /* Send copy to controller. */ -#define ODPAT_SET_VLAN_VID 3 /* Set the 802.1q VLAN id. */ -#define ODPAT_SET_VLAN_PCP 4 /* Set the 802.1q priority. */ -#define ODPAT_STRIP_VLAN 5 /* Strip the 802.1q header. */ -#define ODPAT_SET_DL_SRC 6 /* Ethernet source address. */ -#define ODPAT_SET_DL_DST 7 /* Ethernet destination address. */ -#define ODPAT_SET_NW_SRC 8 /* IP source address. */ -#define ODPAT_SET_NW_DST 9 /* IP destination address. */ -#define ODPAT_SET_NW_TOS 10 /* IP ToS/DSCP field (6 bits). */ -#define ODPAT_SET_TP_SRC 11 /* TCP/UDP source port. */ -#define ODPAT_SET_TP_DST 12 /* TCP/UDP destination port. */ -#define ODPAT_N_ACTIONS 13 - -struct odp_action_output { - __u16 type; /* ODPAT_OUTPUT. */ - __u16 port; /* Output port. */ - __u16 reserved1; - __u16 reserved2; +struct odp_key_ethernet { + uint8_t eth_src[6]; + uint8_t eth_dst[6]; }; -struct odp_action_output_group { - __u16 type; /* ODPAT_OUTPUT_GROUP. */ - __u16 group; /* Group number. */ - __u16 reserved1; - __u16 reserved2; +struct odp_key_8021q { + ovs_be16 q_tpid; + ovs_be16 q_tci; }; -struct odp_action_controller { - __u16 type; /* ODPAT_OUTPUT_CONTROLLER. */ - __u16 reserved; - __u32 arg; /* Copied to struct odp_msg 'arg' member. */ +struct odp_key_ipv4 { + ovs_be32 ipv4_src; + ovs_be32 ipv4_dst; + uint8_t ipv4_proto; + uint8_t ipv4_tos; }; -/* Action structure for ODPAT_SET_VLAN_VID. */ -struct odp_action_vlan_vid { - __u16 type; /* ODPAT_SET_VLAN_VID. */ - __be16 vlan_vid; /* VLAN id. */ - __u16 reserved1; - __u16 reserved2; +struct odp_key_ipv6 { + ovs_be32 ipv6_src[4]; + ovs_be32 ipv6_dst[4]; + uint8_t ipv6_proto; + uint8_t ipv6_tos; }; -/* Action structure for ODPAT_SET_VLAN_PCP. */ -struct odp_action_vlan_pcp { - __u16 type; /* ODPAT_SET_VLAN_PCP. */ - __u8 vlan_pcp; /* VLAN priority. */ - __u8 reserved1; - __u16 reserved2; - __u16 reserved3; +struct odp_key_tcp { + ovs_be16 tcp_src; + ovs_be16 tcp_dst; }; -/* Action structure for ODPAT_SET_DL_SRC/DST. */ -struct odp_action_dl_addr { - __u16 type; /* ODPAT_SET_DL_SRC/DST. */ - __u8 dl_addr[ETH_ALEN]; /* Ethernet address. */ +struct odp_key_udp { + ovs_be16 udp_src; + ovs_be16 udp_dst; }; -/* Action structure for ODPAT_SET_NW_SRC/DST. */ -struct odp_action_nw_addr { - __u16 type; /* ODPAT_SET_TW_SRC/DST. */ - __u16 reserved; - __be32 nw_addr; /* IP address. */ +struct odp_key_icmp { + uint8_t icmp_type; + uint8_t icmp_code; }; -struct odp_action_nw_tos { - __u16 type; /* ODPAT_SET_NW_TOS. */ - __u8 nw_tos; /* IP ToS/DSCP field (6 bits). */ - __u8 reserved1; - __u16 reserved2; - __u16 reserved3; +struct odp_key_icmpv6 { + uint8_t icmpv6_type; + uint8_t icmpv6_code; }; -/* Action structure for ODPAT_SET_TP_SRC/DST. */ -struct odp_action_tp_port { - __u16 type; /* ODPAT_SET_TP_SRC/DST. */ - __be16 tp_port; /* TCP/UDP port. */ - __u16 reserved1; - __u16 reserved2; +struct odp_key_arp { + ovs_be32 arp_sip; + ovs_be32 arp_tip; + ovs_be16 arp_op; + uint8_t arp_sha[6]; + uint8_t arp_tha[6]; }; -union odp_action { - __u16 type; - struct odp_action_output output; - struct odp_action_output_group output_group; - struct odp_action_controller controller; - struct odp_action_vlan_vid vlan_vid; - struct odp_action_vlan_pcp vlan_pcp; - struct odp_action_dl_addr dl_addr; - struct odp_action_nw_addr nw_addr; - struct odp_action_nw_tos nw_tos; - struct odp_action_tp_port tp_port; +/** + * enum odp_flow_attr - attributes for %ODP_FLOW_* commands. + * @ODP_FLOW_ATTR_KEY: Nested %ODP_KEY_ATTR_* attributes specifying the flow + * key. Always present in notifications. Required for all requests (except + * dumps). + * @ODP_FLOW_ATTR_ACTIONS: Nested %ODPAT_* attributes specifying the actions to + * take for packets that match the key. Always present in notifications. + * Required for %ODP_FLOW_CMD_NEW requests, optional on %ODP_FLOW_CMD_SET + * request to change the existing actions, ignored for other requests. + * @ODP_FLOW_ATTR_STATS: &struct odp_flow_stats giving statistics for this + * flow. Present in notifications if the stats would be nonzero. Ignored in + * requests. + * @ODP_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. + * @ODP_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. + * @ODP_FLOW_ATTR_CLEAR: If present in a %ODP_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. + * + * These attributes follow the &struct odp_header within the Generic Netlink + * payload for %ODP_FLOW_* commands. + */ +enum odp_flow_attr { + ODP_FLOW_ATTR_UNSPEC, + ODP_FLOW_ATTR_KEY, /* Sequence of ODP_KEY_ATTR_* attributes. */ + ODP_FLOW_ATTR_ACTIONS, /* Nested ODP_ACTION_ATTR_* attributes. */ + ODP_FLOW_ATTR_STATS, /* struct odp_flow_stats. */ + ODP_FLOW_ATTR_TCP_FLAGS, /* 8-bit OR'd TCP flags. */ + ODP_FLOW_ATTR_USED, /* u64 msecs last used in monotonic time. */ + ODP_FLOW_ATTR_CLEAR, /* Flag to clear stats, tcp_flags, used. */ + __ODP_FLOW_ATTR_MAX }; -struct odp_execute { - __u16 in_port; - __u16 reserved1; - __u32 reserved2; - - union odp_action *actions; - __u32 n_actions; +#define ODP_FLOW_ATTR_MAX (__ODP_FLOW_ATTR_MAX - 1) - const void *data; - __u32 length; +/* Action types. */ +enum odp_action_type { + ODP_ACTION_ATTR_UNSPEC, + ODP_ACTION_ATTR_OUTPUT, /* Output to switch port. */ + ODP_ACTION_ATTR_CONTROLLER, /* Send copy to controller. */ + ODP_ACTION_ATTR_SET_DL_TCI, /* Set the 802.1q TCI value. */ + ODP_ACTION_ATTR_STRIP_VLAN, /* Strip the 802.1q header. */ + ODP_ACTION_ATTR_SET_DL_SRC, /* Ethernet source address. */ + ODP_ACTION_ATTR_SET_DL_DST, /* Ethernet destination address. */ + ODP_ACTION_ATTR_SET_NW_SRC, /* IPv4 source address. */ + ODP_ACTION_ATTR_SET_NW_DST, /* IPv4 destination address. */ + ODP_ACTION_ATTR_SET_NW_TOS, /* IP ToS/DSCP field (6 bits). */ + ODP_ACTION_ATTR_SET_TP_SRC, /* TCP/UDP source port. */ + ODP_ACTION_ATTR_SET_TP_DST, /* TCP/UDP destination port. */ + ODP_ACTION_ATTR_SET_TUNNEL, /* Set the encapsulating tunnel ID. */ + ODP_ACTION_ATTR_SET_PRIORITY, /* Set skb->priority. */ + ODP_ACTION_ATTR_POP_PRIORITY, /* Restore original skb->priority. */ + ODP_ACTION_ATTR_DROP_SPOOFED_ARP, /* Drop ARPs with spoofed source MAC. */ + __ODP_ACTION_ATTR_MAX }; -/* Values below this cutoff are 802.3 packets and the two bytes - * following MAC addresses are used as a frame length. Otherwise, the - * two bytes are used as the Ethernet type. - */ -#define ODP_DL_TYPE_ETH2_CUTOFF 0x0600 - -/* Value of dl_type to indicate that the frame does not include an - * Ethernet type. - */ -#define ODP_DL_TYPE_NOT_ETH_TYPE 0x05ff - -/* The VLAN id is 12-bits, so we can use the entire 16 bits to indicate - * special conditions. All ones indicates that no VLAN id was set. - */ -#define ODP_VLAN_NONE 0xffff +#define ODP_ACTION_ATTR_MAX (__ODP_ACTION_ATTR_MAX - 1) -#endif /* openvswitch/datapath-protocol.h */ +#endif /* openvswitch/datapath-protocol.h */