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authorMohsin Kazmi <sykazmi@cisco.com>2020-04-17 16:50:56 +0000
committerAndrew Yourtchenko <ayourtch@gmail.com>2020-04-22 15:03:34 +0000
commit0b04209edac55487c108ff5f2faf51cbd4c2cee7 (patch)
tree4628b2c65f15bc9b4c628046c72a3c77fadfbab5 /src/vnet/interface_output.h
parent6440b7a602fdeb41674911cc3baf0b39a7521b96 (diff)
gso: add vxlan tunnel support
Type: feature Change-Id: I85f6ec77187a4983c66c5e22fd39fbb2cef82902 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Diffstat (limited to 'src/vnet/interface_output.h')
-rw-r--r--src/vnet/interface_output.h95
1 files changed, 62 insertions, 33 deletions
diff --git a/src/vnet/interface_output.h b/src/vnet/interface_output.h
index 198ca282566..ef7aaa8999e 100644
--- a/src/vnet/interface_output.h
+++ b/src/vnet/interface_output.h
@@ -41,7 +41,44 @@
#define __INTERFACE_INLINES_H__
#include <vnet/vnet.h>
-#include <vnet/gso/gso.h>
+#include <vnet/gso/hdr_offset_parser.h>
+
+static_always_inline void
+vnet_calc_ip4_checksums (vlib_main_t * vm, vlib_buffer_t * b,
+ ip4_header_t * ip4, tcp_header_t * th,
+ udp_header_t * uh)
+{
+ if (b->flags & VNET_BUFFER_F_OFFLOAD_IP_CKSUM)
+ ip4->checksum = ip4_header_checksum (ip4);
+ if (b->flags & VNET_BUFFER_F_OFFLOAD_TCP_CKSUM)
+ {
+ th->checksum = 0;
+ th->checksum = ip4_tcp_udp_compute_checksum (vm, b, ip4);
+ }
+ if (b->flags & VNET_BUFFER_F_OFFLOAD_UDP_CKSUM)
+ {
+ uh->checksum = 0;
+ uh->checksum = ip4_tcp_udp_compute_checksum (vm, b, ip4);
+ }
+}
+
+static_always_inline void
+vnet_calc_ip6_checksums (vlib_main_t * vm, vlib_buffer_t * b,
+ ip6_header_t * ip6, tcp_header_t * th,
+ udp_header_t * uh)
+{
+ int bogus;
+ if (b->flags & VNET_BUFFER_F_OFFLOAD_TCP_CKSUM)
+ {
+ th->checksum = 0;
+ th->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b, ip6, &bogus);
+ }
+ if (b->flags & VNET_BUFFER_F_OFFLOAD_UDP_CKSUM)
+ {
+ uh->checksum = 0;
+ uh->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b, ip6, &bogus);
+ }
+}
static_always_inline void
vnet_calc_checksums_inline (vlib_main_t * vm, vlib_buffer_t * b,
@@ -52,59 +89,51 @@ vnet_calc_checksums_inline (vlib_main_t * vm, vlib_buffer_t * b,
tcp_header_t *th;
udp_header_t *uh;
- ASSERT (!(is_ip4 && is_ip6));
-
if (with_gso)
{
- gso_header_offset_t gho;
- gho = vnet_gso_header_offset_parser (b, is_ip6);
+ generic_header_offset_t gho = { 0 };
+ vnet_generic_header_offset_parser (b, &gho);
+
+ ASSERT (gho.gho_flags ^ (GHO_F_IP4 | GHO_F_IP6));
+
+ vnet_get_inner_header (b, &gho);
+
ip4 = (ip4_header_t *)
(vlib_buffer_get_current (b) + gho.l3_hdr_offset);
ip6 = (ip6_header_t *)
(vlib_buffer_get_current (b) + gho.l3_hdr_offset);
th = (tcp_header_t *) (vlib_buffer_get_current (b) + gho.l4_hdr_offset);
uh = (udp_header_t *) (vlib_buffer_get_current (b) + gho.l4_hdr_offset);
+
+ if (gho.gho_flags & GHO_F_IP4)
+ {
+ vnet_calc_ip4_checksums (vm, b, ip4, th, uh);
+ }
+ else if (gho.gho_flags & GHO_F_IP6)
+ {
+ vnet_calc_ip6_checksums (vm, b, ip6, th, uh);
+ }
+
+ vnet_get_outer_header (b, &gho);
}
else
{
+ ASSERT (!(is_ip4 && is_ip6));
+
ip4 = (ip4_header_t *) (b->data + vnet_buffer (b)->l3_hdr_offset);
ip6 = (ip6_header_t *) (b->data + vnet_buffer (b)->l3_hdr_offset);
th = (tcp_header_t *) (b->data + vnet_buffer (b)->l4_hdr_offset);
uh = (udp_header_t *) (b->data + vnet_buffer (b)->l4_hdr_offset);
- }
- if (is_ip4)
- {
- if (b->flags & VNET_BUFFER_F_OFFLOAD_IP_CKSUM)
- ip4->checksum = ip4_header_checksum (ip4);
- if (b->flags & VNET_BUFFER_F_OFFLOAD_TCP_CKSUM)
+ if (is_ip4)
{
- th->checksum = 0;
- th->checksum = ip4_tcp_udp_compute_checksum (vm, b, ip4);
+ vnet_calc_ip4_checksums (vm, b, ip4, th, uh);
}
- if (b->flags & VNET_BUFFER_F_OFFLOAD_UDP_CKSUM)
+ if (is_ip6)
{
- uh->checksum = 0;
- uh->checksum = ip4_tcp_udp_compute_checksum (vm, b, ip4);
+ vnet_calc_ip6_checksums (vm, b, ip6, th, uh);
}
}
- if (is_ip6)
- {
- int bogus;
- if (b->flags & VNET_BUFFER_F_OFFLOAD_TCP_CKSUM)
- {
- th->checksum = 0;
- th->checksum =
- ip6_tcp_udp_icmp_compute_checksum (vm, b, ip6, &bogus);
- }
- if (b->flags & VNET_BUFFER_F_OFFLOAD_UDP_CKSUM)
- {
- uh->checksum = 0;
- uh->checksum =
- ip6_tcp_udp_icmp_compute_checksum (vm, b, ip6, &bogus);
- }
- }
-
b->flags &= ~VNET_BUFFER_F_OFFLOAD_TCP_CKSUM;
b->flags &= ~VNET_BUFFER_F_OFFLOAD_UDP_CKSUM;
b->flags &= ~VNET_BUFFER_F_OFFLOAD_IP_CKSUM;