diff options
| author |   Mohsin Kazmi <sykazmi@cisco.com> | 2022-05-18 16:51:57 +0000 |
|---|---|---|
| committer |   Beno�t Ganne <bganne@cisco.com> | 2022-05-20 12:46:54 +0000 |
| commit | 096c8cc680919858f51ba2a7ee451d8e5d1671f7 (patch) | |
| tree | 0a8445ff8987f92ff1172c590b379f606fe24bc8 /src/vnet/devices/virtio/node.c | |
| parent | cada9eb7894117db898f7c4def92cba5511baa4f (diff) | |
virtio: use the internal hdr offsets of buffer metadata for offloads
Type: improvement
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Change-Id: Ie63c360f2e42e9e5799f5c536453823ea95ed3b8
Diffstat (limited to 'src/vnet/devices/virtio/node.c')
| -rw-r--r-- | src/vnet/devices/virtio/node.c | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/src/vnet/devices/virtio/node.c b/src/vnet/devices/virtio/node.c index 1de4fb73f7d..551651ed372 100644 --- a/src/vnet/devices/virtio/node.c +++ b/src/vnet/devices/virtio/node.c @@ -91,8 +91,7 @@ virtio_needs_csum (vlib_buffer_t *b0, vnet_virtio_net_hdr_v1_t *hdr, } else { - ethernet_header_t *eh = - (ethernet_header_t *) vlib_buffer_get_current (b0); + ethernet_header_t *eh = (ethernet_header_t *) b0->data; ethertype = clib_net_to_host_u16 (eh->type); l2hdr_sz = sizeof (ethernet_header_t); @@ -117,8 +116,7 @@ virtio_needs_csum (vlib_buffer_t *b0, vnet_virtio_net_hdr_v1_t *hdr, if (PREDICT_TRUE (ethertype == ETHERNET_TYPE_IP4)) { - ip4_header_t *ip4 = - (ip4_header_t *) (vlib_buffer_get_current (b0) + l2hdr_sz); + ip4_header_t *ip4 = (ip4_header_t *) (b0->data + l2hdr_sz); vnet_buffer (b0)->l4_hdr_offset = l2hdr_sz + ip4_header_bytes (ip4); *l4_proto = ip4->protocol; oflags |= VNET_BUFFER_OFFLOAD_F_IP_CKSUM; @@ -129,8 +127,7 @@ virtio_needs_csum (vlib_buffer_t *b0, vnet_virtio_net_hdr_v1_t *hdr, } else if (PREDICT_TRUE (ethertype == ETHERNET_TYPE_IP6)) { - ip6_header_t *ip6 = - (ip6_header_t *) (vlib_buffer_get_current (b0) + l2hdr_sz); + ip6_header_t *ip6 = (ip6_header_t *) (b0->data + l2hdr_sz); vnet_buffer (b0)->l4_hdr_offset = l2hdr_sz + sizeof (ip6_header_t); /* FIXME IPv6 EH traversal */ *l4_proto = ip6->protocol; @@ -142,18 +139,14 @@ virtio_needs_csum (vlib_buffer_t *b0, vnet_virtio_net_hdr_v1_t *hdr, if (*l4_proto == IP_PROTOCOL_TCP) { oflags |= VNET_BUFFER_OFFLOAD_F_TCP_CKSUM; - tcp_header_t *tcp = (tcp_header_t *) (vlib_buffer_get_current (b0) + - vnet_buffer - (b0)->l4_hdr_offset); + tcp_header_t *tcp = + (tcp_header_t *) (b0->data + vnet_buffer (b0)->l4_hdr_offset); *l4_hdr_sz = tcp_header_bytes (tcp); } else if (*l4_proto == IP_PROTOCOL_UDP) { oflags |= VNET_BUFFER_OFFLOAD_F_UDP_CKSUM; - udp_header_t *udp = (udp_header_t *) (vlib_buffer_get_current (b0) + - vnet_buffer - (b0)->l4_hdr_offset); - *l4_hdr_sz = sizeof (*udp); + *l4_hdr_sz = sizeof (udp_header_t); } if (oflags) vnet_buffer_offload_flags_set (b0, oflags); |