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/*
* Copyright (c) 2014 VMware, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __OVS_DP_INTERFACE_EXT_H_
#define __OVS_DP_INTERFACE_EXT_H_ 1
/* Windows kernel datapath extensions to the standard datapath interface. */
/* Version number of the datapath interface extensions. */
#define OVS_DATAPATH_EXT_VERSION 1
/* Name of the device. */
#define OVS_DEVICE_NAME_NT L"\\Device\\OpenvSwitchDevice"
#define OVS_DEVICE_NAME_DOS L"\\DosDevices\\OpenvSwitchDevice"
#define OVS_DEVICE_NAME_USER TEXT("\\\\.\\OpenvSwitchDevice")
#define OVS_IOCTL_DEVICE_TYPE 45000
/* We used Direct I/O (zero copy) for the buffers. */
#define OVS_IOCTL_START 0x100
#define OVS_IOCTL_READ \
CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x0, METHOD_OUT_DIRECT,\
FILE_READ_ACCESS)
#define OVS_IOCTL_WRITE \
CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x1, METHOD_IN_DIRECT,\
FILE_READ_ACCESS)
#define OVS_IOCTL_TRANSACT \
CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x2, METHOD_OUT_DIRECT,\
FILE_WRITE_ACCESS)
/*
* On platforms that support netlink natively, the operating system assigns a
* dynamic value to a netlink family when it is registered. In the absense of
* such mechanism, defined hard-coded values that are known both to userspace
* and kernel.
*/
#define OVS_WIN_NL_INVALID_FAMILY_ID 0
#define OVS_WIN_NL_CTRL_FAMILY_ID (NLMSG_MIN_TYPE + 1)
#define OVS_WIN_NL_DATAPATH_FAMILY_ID (NLMSG_MIN_TYPE + 2)
#define OVS_WIN_NL_PACKET_FAMILY_ID (NLMSG_MIN_TYPE + 3)
#define OVS_WIN_NL_VPORT_FAMILY_ID (NLMSG_MIN_TYPE + 4)
#define OVS_WIN_NL_FLOW_FAMILY_ID (NLMSG_MIN_TYPE + 5)
#define OVS_WIN_NL_INVALID_MCGRP_ID 0
#define OVS_WIN_NL_MCGRP_START_ID 100
#define OVS_WIN_NL_VPORT_MCGRP_ID (OVS_WIN_NL_MCGRP_START_ID + 1)
/*
* Define a family of netlink command specific to Windows. This is part of the
* extensions.
*/
#define OVS_WIN_CONTROL_FAMILY "ovs_win_control"
#define OVS_WIN_CONTROL_MCGROUP "ovs_win_control"
#define OVS_WIN_CONTROL_VERSION 1
#define OVS_WIN_CONTROL_ATTR_MAX (__OVS_FLOW_ATTR_MAX - 1)
/* Commands available under the OVS_WIN_CONTROL_FAMILY. */
enum ovs_win_control_cmd {
OVS_CTRL_CMD_WIN_GET_PID,
OVS_CTRL_CMD_WIN_PEND_REQ,
OVS_CTRL_CMD_MC_SUBSCRIBE_REQ,
};
/* NL Attributes for joining/unjoining an MC group */
enum ovs_nl_mcast_attr {
OVS_NL_ATTR_MCAST_GRP, /* (UINT32) Join an MC group */
OVS_NL_ATTR_MCAST_JOIN, /* (UINT8) 1/0 - Join/Unjoin */
};
typedef struct ovs_dp_stats OVS_DP_STATS;
typedef enum ovs_vport_type OVS_VPORT_TYPE;
#endif /* __OVS_DP_INTERFACE_EXT_H_ */
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