2 * Copyright (c) 2014 VMware, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #ifndef __OVS_DP_INTERFACE_EXT_H_
18 #define __OVS_DP_INTERFACE_EXT_H_ 1
20 /* Windows kernel datapath extensions to the standard datapath interface. */
22 /* Version number of the datapath interface extensions. */
23 #define OVS_DATAPATH_EXT_VERSION 1
25 /* Name of the device. */
26 #define OVS_DEVICE_NAME_NT L"\\Device\\OpenvSwitchDevice"
27 #define OVS_DEVICE_NAME_DOS L"\\DosDevices\\OpenvSwitchDevice"
28 #define OVS_DEVICE_NAME_USER TEXT("\\\\.\\OpenvSwitchDevice")
30 #define OVS_IOCTL_DEVICE_TYPE 45000
32 #define OVS_IOCTL_START 0x100
33 /* We used Direct I/O (zero copy) for the buffers. */
34 /* Non-Netlink-based IOCTLs. */
35 #define OVS_IOCTL_GET_PID \
36 CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x0, METHOD_BUFFERED,\
38 /* Netlink-based IOCTLs. */
39 #define OVS_IOCTL_READ \
40 CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x1, METHOD_OUT_DIRECT,\
42 #define OVS_IOCTL_READ_EVENT \
43 CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x2, METHOD_OUT_DIRECT, \
45 #define OVS_IOCTL_READ_PACKET \
46 CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x3, METHOD_OUT_DIRECT, \
48 #define OVS_IOCTL_WRITE \
49 CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x4, METHOD_IN_DIRECT,\
51 #define OVS_IOCTL_TRANSACT \
52 CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x5, METHOD_OUT_DIRECT,\
56 * On platforms that support netlink natively, the operating system assigns a
57 * dynamic value to a netlink family when it is registered. In the absense of
58 * such mechanism, defined hard-coded values that are known both to userspace
61 #define OVS_WIN_NL_INVALID_FAMILY_ID 0
62 #define OVS_WIN_NL_CTRL_FAMILY_ID (NLMSG_MIN_TYPE + 1)
63 #define OVS_WIN_NL_DATAPATH_FAMILY_ID (NLMSG_MIN_TYPE + 2)
64 #define OVS_WIN_NL_PACKET_FAMILY_ID (NLMSG_MIN_TYPE + 3)
65 #define OVS_WIN_NL_VPORT_FAMILY_ID (NLMSG_MIN_TYPE + 4)
66 #define OVS_WIN_NL_FLOW_FAMILY_ID (NLMSG_MIN_TYPE + 5)
67 #define OVS_WIN_NL_NETDEV_FAMILY_ID (NLMSG_MIN_TYPE + 6)
69 #define OVS_WIN_NL_INVALID_MCGRP_ID 0
70 #define OVS_WIN_NL_MCGRP_START_ID 100
71 #define OVS_WIN_NL_VPORT_MCGRP_ID (OVS_WIN_NL_MCGRP_START_ID + 1)
74 * Define a family of netlink command specific to Windows. This is part of the
77 #define OVS_WIN_CONTROL_FAMILY "ovs_win_control"
78 #define OVS_WIN_CONTROL_MCGROUP "ovs_win_control"
79 #define OVS_WIN_CONTROL_VERSION 1
81 /* Commands available under the OVS_WIN_CONTROL_FAMILY. */
82 enum ovs_win_control_cmd {
83 OVS_CTRL_CMD_WIN_PEND_REQ,
84 OVS_CTRL_CMD_WIN_PEND_PACKET_REQ,
85 OVS_CTRL_CMD_MC_SUBSCRIBE_REQ,
86 OVS_CTRL_CMD_PACKET_SUBSCRIBE_REQ,
88 /* This command is logically belong to the Vport family */
89 OVS_CTRL_CMD_EVENT_NOTIFY,
90 OVS_CTRL_CMD_READ_NOTIFY
93 /* NL Attributes for joining/unjoining an MC group */
94 enum ovs_nl_mcast_attr {
95 OVS_NL_ATTR_MCAST_GRP, /* (UINT32) Join an MC group */
96 OVS_NL_ATTR_MCAST_JOIN, /* (UINT8) 1/0 - Join/Unjoin */
97 OVS_NL_ATTR_PACKET_SUBSCRIBE, /* (UNINT8): 1/0 - subscribe/unsubscribe */
98 OVS_NL_ATTR_PACKET_PID, /* (UNINT32) netlink PID to receive upcalls */
99 __OVS_NL_ATTR_CTRL_MAX
101 #define OVS_WIN_CONTROL_ATTR_MAX (__OVS_NL_ATTR_CTRL_MAX - 1)
104 * Netdev family of commands specific to Windows.
106 #define OVS_WIN_NETDEV_FAMILY "ovs_win_netdev"
107 #define OVS_WIN_NETDEV_MCGROUP "ovs_win_netdev"
108 #define OVS_WIN_NETDEV_VERSION 1
110 enum ovs_win_netdev_cmd {
111 OVS_WIN_NETDEV_CMD_UNSPEC,
112 OVS_WIN_NETDEV_CMD_GET, /* information about the netdev. */
116 * For every vport on the datapath, there is a corresponding netdev. General
117 * network device attributes of a vport that are not specific to OVS, such as
118 * MTU are represented using a netdev. For convenience, some of the vport
119 * attributes are also included as netdev attributes.
121 * enum ovs_win_netdev_attr - attributes for %OVS_WIN_NETDEV_* commands.
122 * @OVS_WIN_NETDEV_ATTR_PORT_NO: 32-bit port number of the vport within the
124 * @OVS_WIN_NETDEV_ATTR_TYPE: 32-bit %OVS_VPORT_TYPE_* constant describing
126 * @OVS_WIN_NETDEV_ATTR_NAME: Name of vport. Maximum length %IFNAMSIZ-1 bytes
127 * plus a null terminator.
128 * @OVS_WIN_NETDEV_ATTR_MAC_ADDR: MAC address of the vport. %ETH_ADDR_LEN bytes
130 * @OVS_WIN_NETDEV_ATTR_MTU : 32-bit MTU of the vport.
131 * @OVS_WIN_NETDEV_ATTR_IF_FLAGS: 32-bit %OVS_WIN_NETDEV_IFF_* interface flags
134 * These attributes follow the &struct ovs_header within the Generic Netlink
135 * payload for %OVS_WIN_NETDEV_* commands.
137 * For all requests, if %OVS_WIN_NETDEV_ATTR_NAME is specified then it is used
138 * to look up the netdev to operate on; dp_idx from the &struct
139 * ovs_header is not relevant for the look up.
141 enum ovs_win_netdev_attr {
142 OVS_WIN_NETDEV_ATTR_UNSPEC,
143 OVS_WIN_NETDEV_ATTR_PORT_NO, /* u32 port number within datapath. */
144 OVS_WIN_NETDEV_ATTR_TYPE, /* u32 OVS_NETDEV_TYPE_* constant. */
145 OVS_WIN_NETDEV_ATTR_NAME, /* string name, up to IFNAMSIZ bytes long. */
146 OVS_WIN_NETDEV_ATTR_MAC_ADDR, /* MAC address of the vport. */
147 OVS_WIN_NETDEV_ATTR_MTU, /* MTU of the vport. */
148 OVS_WIN_NETDEV_ATTR_IF_FLAGS, /* Interface flags o the vport. */
149 __OVS_WIN_NETDEV_ATTR_MAX
151 #define OVS_WIN_NETDEV_ATTR_MAX (__OVS_WIN_NETDEV_ATTR_MAX - 1)
153 #define OVS_WIN_NETDEV_IFF_UP (1 << 0)
154 #define OVS_WIN_NETDEV_IFF_PROMISC (1 << 1)
156 typedef struct ovs_dp_stats OVS_DP_STATS;
157 typedef enum ovs_vport_type OVS_VPORT_TYPE;
159 #endif /* __OVS_DP_INTERFACE_EXT_H_ */