diff options
| author |   Arthur de Kerhor <arthurdekerhor@gmail.com> | 2021-09-22 14:53:24 +0200 |
|---|---|---|
| committer |   Beno�t Ganne <bganne@cisco.com> | 2024-03-21 14:38:49 +0000 |
| commit | 2f4586d9b3507243918c11ce99b9d151d5bde7a0 (patch) | |
| tree | 8fa05cae8630a0a142fc6218e4d4f5473bdde16e /src/vnet/ipip | |
| parent | b8cb22318cd5a3135b8a0eb121a4eff4da254f54 (diff) | |
ip: add support for buffer offload metadata in ip midchain
The offload should be handled by gso node or by the NIC
if the latter has the relevant capabilities. But ip midchain
is missing the support for buffer offload metadata in case
of GSO packet.
This patch adds the relevant support to add the buffer metadata
if the packet is GSO/IPIP to be handled accordingly.
Type: improvement
Change-Id: I17f5d71bf4c5f43a85ca3f2fbebfa1426b42ef69
Signed-off-by: Arthur de Kerhor <arthurdekerhor@gmail.com>
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Diffstat (limited to 'src/vnet/ipip')
| -rw-r--r-- | src/vnet/ipip/ipip.c | 46 |
1 files changed, 43 insertions, 3 deletions
diff --git a/src/vnet/ipip/ipip.c b/src/vnet/ipip/ipip.c index ec329e21eea..aaf21468d1e 100644 --- a/src/vnet/ipip/ipip.c +++ b/src/vnet/ipip/ipip.c @@ -148,7 +148,14 @@ ipip64_fixup (vlib_main_t * vm, const ip_adjacency_t * adj, vlib_buffer_t * b, ip4->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b)); tunnel_encap_fixup_6o4 (flags, ((ip6_header_t *) (ip4 + 1)), ip4); - ip4->checksum = ip4_header_checksum (ip4); + if (PREDICT_FALSE (b->flags & VNET_BUFFER_F_GSO)) + { + vnet_buffer2 (b)->outer_l3_hdr_offset = (u8 *) ip4 - b->data; + vnet_buffer_offload_flags_set (b, VNET_BUFFER_OFFLOAD_F_OUTER_IP_CKSUM | + VNET_BUFFER_OFFLOAD_F_TNL_IPIP); + } + else + ip4->checksum = ip4_header_checksum (ip4); } static void @@ -164,7 +171,14 @@ ipip44_fixup (vlib_main_t * vm, const ip_adjacency_t * adj, vlib_buffer_t * b, ip4->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b)); tunnel_encap_fixup_4o4 (flags, ip4 + 1, ip4); - ip4->checksum = ip4_header_checksum (ip4); + if (PREDICT_FALSE (b->flags & VNET_BUFFER_F_GSO)) + { + vnet_buffer2 (b)->outer_l3_hdr_offset = (u8 *) ip4 - b->data; + vnet_buffer_offload_flags_set (b, VNET_BUFFER_OFFLOAD_F_OUTER_IP_CKSUM | + VNET_BUFFER_OFFLOAD_F_TNL_IPIP); + } + else + ip4->checksum = ip4_header_checksum (ip4); } static void @@ -185,6 +199,12 @@ ipip46_fixup (vlib_main_t * vm, const ip_adjacency_t * adj, vlib_buffer_t * b, clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b) - sizeof (*ip6)); tunnel_encap_fixup_4o6 (flags, b, ((ip4_header_t *) (ip6 + 1)), ip6); + + if (PREDICT_FALSE (b->flags & VNET_BUFFER_F_GSO)) + { + vnet_buffer2 (b)->outer_l3_hdr_offset = (u8 *) ip6 - b->data; + vnet_buffer_offload_flags_set (b, VNET_BUFFER_OFFLOAD_F_TNL_IPIP); + } } static void @@ -205,6 +225,12 @@ ipip66_fixup (vlib_main_t * vm, clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b) - sizeof (*ip6)); tunnel_encap_fixup_6o6 (flags, ip6 + 1, ip6); + + if (PREDICT_FALSE (b->flags & VNET_BUFFER_F_GSO)) + { + vnet_buffer2 (b)->outer_l3_hdr_offset = (u8 *) ip6 - b->data; + vnet_buffer_offload_flags_set (b, VNET_BUFFER_OFFLOAD_F_TNL_IPIP); + } } static void @@ -226,6 +252,12 @@ ipipm6_fixup (vlib_main_t *vm, const ip_adjacency_t *adj, vlib_buffer_t *b, clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b) - sizeof (*ip6)); tunnel_encap_fixup_mplso6 (flags, b, (mpls_unicast_header_t *) (ip6 + 1), ip6); + + if (PREDICT_FALSE (b->flags & VNET_BUFFER_F_GSO)) + { + vnet_buffer2 (b)->outer_l3_hdr_offset = (u8 *) ip6 - b->data; + vnet_buffer_offload_flags_set (b, VNET_BUFFER_OFFLOAD_F_TNL_IPIP); + } } static void @@ -245,7 +277,15 @@ ipipm4_fixup (vlib_main_t *vm, const ip_adjacency_t *adj, vlib_buffer_t *b, ip4->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b) - sizeof (*ip4)); tunnel_encap_fixup_mplso4 (flags, (mpls_unicast_header_t *) (ip4 + 1), ip4); - ip4->checksum = ip4_header_checksum (ip4); + + if (PREDICT_FALSE (b->flags & VNET_BUFFER_F_GSO)) + { + vnet_buffer2 (b)->outer_l3_hdr_offset = (u8 *) ip4 - b->data; + vnet_buffer_offload_flags_set (b, VNET_BUFFER_OFFLOAD_F_OUTER_IP_CKSUM | + VNET_BUFFER_OFFLOAD_F_TNL_IPIP); + } + else + ip4->checksum = ip4_header_checksum (ip4); } static void |