diff options
| author |   Mohsin Kazmi <sykazmi@cisco.com> | 2020-04-23 17:59:49 +0200 |
|---|---|---|
| committer |   Neale Ranns <nranns@cisco.com> | 2020-05-05 07:44:12 +0000 |
| commit | 84f91fa9c54f82c54b58ea3bf6e9ba22ff735d3a (patch) | |
| tree | 63a762ea0e66b1a0074378f25984eb6450ac9ceb /src/vnet/devices/virtio/device.c | |
| parent | 5ec6a4ea4440211e468a813ffe0f3173421c9b29 (diff) | |
gso: add support for IP-IP
Type: feature
Change-Id: I37752af8496e0042a1da91124f3d94216b39ff11
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Diffstat (limited to 'src/vnet/devices/virtio/device.c')
| -rw-r--r-- | src/vnet/devices/virtio/device.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/src/vnet/devices/virtio/device.c b/src/vnet/devices/virtio/device.c index d110946dede..9a35bb8162f 100644 --- a/src/vnet/devices/virtio/device.c +++ b/src/vnet/devices/virtio/device.c @@ -168,13 +168,15 @@ virtio_free_used_device_desc (vlib_main_t * vm, virtio_vring_t * vring, } static_always_inline void -set_checksum_offsets (vlib_buffer_t * b, struct virtio_net_hdr_v1 *hdr) +set_checksum_offsets (vlib_buffer_t * b, struct virtio_net_hdr_v1 *hdr, + int is_l2) { if (b->flags & VNET_BUFFER_F_IS_IP4) { ip4_header_t *ip4; generic_header_offset_t gho = { 0 }; - vnet_generic_header_offset_parser (b, &gho); + vnet_generic_header_offset_parser (b, &gho, is_l2, 1 /* ip4 */ , + 0 /* ip6 */ ); hdr->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM; hdr->csum_start = gho.l4_hdr_offset; // 0x22; if (b->flags & VNET_BUFFER_F_OFFLOAD_TCP_CKSUM) @@ -198,7 +200,8 @@ set_checksum_offsets (vlib_buffer_t * b, struct virtio_net_hdr_v1 *hdr) else if (b->flags & VNET_BUFFER_F_IS_IP6) { generic_header_offset_t gho = { 0 }; - vnet_generic_header_offset_parser (b, &gho); + vnet_generic_header_offset_parser (b, &gho, is_l2, 0 /* ip4 */ , + 1 /* ip6 */ ); hdr->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM; hdr->csum_start = gho.l4_hdr_offset; // 0x36; if (b->flags & VNET_BUFFER_F_OFFLOAD_TCP_CKSUM) @@ -213,13 +216,14 @@ set_checksum_offsets (vlib_buffer_t * b, struct virtio_net_hdr_v1 *hdr) } static_always_inline void -set_gso_offsets (vlib_buffer_t * b, struct virtio_net_hdr_v1 *hdr) +set_gso_offsets (vlib_buffer_t * b, struct virtio_net_hdr_v1 *hdr, int is_l2) { if (b->flags & VNET_BUFFER_F_IS_IP4) { ip4_header_t *ip4; generic_header_offset_t gho = { 0 }; - vnet_generic_header_offset_parser (b, &gho); + vnet_generic_header_offset_parser (b, &gho, is_l2, 1 /* ip4 */ , + 0 /* ip6 */ ); hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV4; hdr->gso_size = vnet_buffer2 (b)->gso_size; hdr->hdr_len = gho.hdr_sz; @@ -238,7 +242,8 @@ set_gso_offsets (vlib_buffer_t * b, struct virtio_net_hdr_v1 *hdr) else if (b->flags & VNET_BUFFER_F_IS_IP6) { generic_header_offset_t gho = { 0 }; - vnet_generic_header_offset_parser (b, &gho); + vnet_generic_header_offset_parser (b, &gho, is_l2, 0 /* ip4 */ , + 1 /* ip6 */ ); hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV6; hdr->gso_size = vnet_buffer2 (b)->gso_size; hdr->hdr_len = gho.hdr_sz; @@ -260,13 +265,14 @@ add_buffer_to_slot (vlib_main_t * vm, virtio_if_t * vif, d = &vring->desc[next]; vlib_buffer_t *b = vlib_get_buffer (vm, bi); struct virtio_net_hdr_v1 *hdr = vlib_buffer_get_current (b) - hdr_sz; + int is_l2 = (vif->type & (VIRTIO_IF_TYPE_TAP | VIRTIO_IF_TYPE_PCI)); clib_memset (hdr, 0, hdr_sz); if (b->flags & VNET_BUFFER_F_GSO) { if (do_gso) - set_gso_offsets (b, hdr); + set_gso_offsets (b, hdr, is_l2); else { virtio_interface_drop_inline (vm, node_index, &bi, 1, @@ -278,7 +284,7 @@ add_buffer_to_slot (vlib_main_t * vm, virtio_if_t * vif, VNET_BUFFER_F_OFFLOAD_UDP_CKSUM)) { if (csum_offload) - set_checksum_offsets (b, hdr); + set_checksum_offsets (b, hdr, is_l2); else { virtio_interface_drop_inline (vm, node_index, &bi, 1, |