1422e32db5
Move public headers to include/net, and leave private headers in net/. Put the virtio headers in include/net/tap.h, removing the multiple copies that existed. Leave include/net/tap.h as the interface for NICs, and net/tap_int.h as the interface for OS-specific parts of the tap backend. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
68 lines
2.5 KiB
C
68 lines
2.5 KiB
C
/*
|
|
* QEMU System Emulator
|
|
*
|
|
* Copyright (c) 2003-2008 Fabrice Bellard
|
|
* Copyright (c) 2009 Red Hat, Inc.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef QEMU_NET_TAP_H
|
|
#define QEMU_NET_TAP_H
|
|
|
|
#include "qemu-common.h"
|
|
#include "qapi-types.h"
|
|
|
|
int tap_has_ufo(NetClientState *nc);
|
|
int tap_has_vnet_hdr(NetClientState *nc);
|
|
int tap_has_vnet_hdr_len(NetClientState *nc, int len);
|
|
void tap_using_vnet_hdr(NetClientState *nc, int using_vnet_hdr);
|
|
void tap_set_offload(NetClientState *nc, int csum, int tso4, int tso6, int ecn, int ufo);
|
|
void tap_set_vnet_hdr_len(NetClientState *nc, int len);
|
|
|
|
int tap_get_fd(NetClientState *nc);
|
|
|
|
struct vhost_net;
|
|
struct vhost_net *tap_get_vhost_net(NetClientState *nc);
|
|
|
|
struct virtio_net_hdr
|
|
{
|
|
#define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 // Use csum_start, csum_offset
|
|
#define VIRTIO_NET_HDR_F_DATA_VALID 2 // Csum is valid
|
|
uint8_t flags;
|
|
#define VIRTIO_NET_HDR_GSO_NONE 0 // Not a GSO frame
|
|
#define VIRTIO_NET_HDR_GSO_TCPV4 1 // GSO frame, IPv4 TCP (TSO)
|
|
#define VIRTIO_NET_HDR_GSO_UDP 3 // GSO frame, IPv4 UDP (UFO)
|
|
#define VIRTIO_NET_HDR_GSO_TCPV6 4 // GSO frame, IPv6 TCP
|
|
#define VIRTIO_NET_HDR_GSO_ECN 0x80 // TCP has ECN set
|
|
uint8_t gso_type;
|
|
uint16_t hdr_len;
|
|
uint16_t gso_size;
|
|
uint16_t csum_start;
|
|
uint16_t csum_offset;
|
|
};
|
|
|
|
struct virtio_net_hdr_mrg_rxbuf
|
|
{
|
|
struct virtio_net_hdr hdr;
|
|
uint16_t num_buffers; /* Number of merged rx buffers */
|
|
};
|
|
|
|
#endif /* QEMU_NET_TAP_H */
|