diff options
author | Paolo Bonzini <pbonzini@redhat.com> | 2012-10-24 08:43:34 +0200 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2012-12-19 08:31:29 +0100 |
commit | 1422e32db51ff2b1194fb24a6201c4310be5667d (patch) | |
tree | 56f9911d524eca4194573a6037303a169e61db50 /include/net/tap.h | |
parent | fd9400b302ef582c3ae8a8d5288338ea5f0f4c9a (diff) | |
download | hqemu-1422e32db51ff2b1194fb24a6201c4310be5667d.zip hqemu-1422e32db51ff2b1194fb24a6201c4310be5667d.tar.gz |
net: reorganize headers
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>
Diffstat (limited to 'include/net/tap.h')
-rw-r--r-- | include/net/tap.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/include/net/tap.h b/include/net/tap.h new file mode 100644 index 0000000..bb7efb5 --- /dev/null +++ b/include/net/tap.h @@ -0,0 +1,67 @@ +/* + * 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 */ |