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authorIgor Mikhailov (imichail) <imichail@cisco.com>2018-04-24 21:53:00 -0700
committerJohn Lo <loj@cisco.com>2018-04-25 16:52:32 +0000
commit6636440abf08f9386d5edc782b59dccf8a4fe7a0 (patch)
tree0fcf54e98a917bd6778133ee704ed7a89caff783 /src
parent074883a2234c0e3bb60933455f9e93ea4a4f5571 (diff)
Carry recorded QOS bits in the outer VXLAN IP header
Currently for VXLAN IPv4. Change-Id: Id4b8bc0d9f6ab043810e4d1b9f28e01c27ce0660 Signed-off-by: Igor Mikhailov (imichail) <imichail@cisco.com>
Diffstat (limited to 'src')
-rw-r--r--src/vnet/vxlan/encap.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/src/vnet/vxlan/encap.c b/src/vnet/vxlan/encap.c
index 107e66e4335..f9871d533ff 100644
--- a/src/vnet/vxlan/encap.c
+++ b/src/vnet/vxlan/encap.c
@@ -19,6 +19,7 @@
#include <vnet/ip/ip.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/vxlan/vxlan.h>
+#include <vnet/qos/qos_types.h>
/* Statistics (not all errors) */
#define foreach_vxlan_encap_error \
@@ -181,6 +182,7 @@ vxlan_encap_inline (vlib_main_t * vm,
u16 payload_l1 = clib_host_to_net_u16 (len1 - l3_len);
ip4_header_t * ip4_0, * ip4_1;
+ qos_bits_t ip4_0_tos = 0, ip4_1_tos = 0;
ip6_header_t * ip6_0, * ip6_1;
udp_header_t * udp0, * udp1;
u8 * l3_0, * l3_1;
@@ -199,6 +201,17 @@ vxlan_encap_inline (vlib_main_t * vm,
ip4_0->length = clib_host_to_net_u16 (len0);
ip4_1->length = clib_host_to_net_u16 (len1);
+ if (PREDICT_FALSE (b0->flags & VNET_BUFFER_F_QOS_DATA_VALID))
+ {
+ ip4_0_tos = vnet_buffer2 (b0)->qos.bits;
+ ip4_0->tos = ip4_0_tos;
+ }
+ if (PREDICT_FALSE (b1->flags & VNET_BUFFER_F_QOS_DATA_VALID))
+ {
+ ip4_1_tos = vnet_buffer2 (b1)->qos.bits;
+ ip4_1->tos = ip4_1_tos;
+ }
+
l3_0 = (u8 *)ip4_0;
l3_1 = (u8 *)ip4_1;
udp0 = &hdr0->udp;
@@ -246,10 +259,20 @@ vxlan_encap_inline (vlib_main_t * vm,
ip_csum_t sum0 = ip4_0->checksum;
sum0 = ip_csum_update (sum0, 0, ip4_0->length, ip4_header_t,
length /* changed member */);
+ if (PREDICT_FALSE (ip4_0_tos))
+ {
+ sum0 = ip_csum_update (sum0, 0, ip4_0_tos, ip4_header_t,
+ tos /* changed member */);
+ }
ip4_0->checksum = ip_csum_fold (sum0);
ip_csum_t sum1 = ip4_1->checksum;
sum1 = ip_csum_update (sum1, 0, ip4_1->length, ip4_header_t,
length /* changed member */);
+ if (PREDICT_FALSE (ip4_1_tos))
+ {
+ sum1 = ip_csum_update (sum1, 0, ip4_1_tos, ip4_header_t,
+ tos /* changed member */);
+ }
ip4_1->checksum = ip_csum_fold (sum1);
}
/* IPv6 UDP checksum is mandatory */
@@ -329,6 +352,7 @@ vxlan_encap_inline (vlib_main_t * vm,
udp_header_t * udp0;
ip4_header_t * ip4_0;
+ qos_bits_t ip4_0_tos = 0;
ip6_header_t * ip6_0;
u8 * l3_0;
if (is_ip4)
@@ -341,6 +365,12 @@ vxlan_encap_inline (vlib_main_t * vm,
ip4_0 = &hdr->ip4;
ip4_0->length = clib_host_to_net_u16 (len0);
+ if (PREDICT_FALSE (b0->flags & VNET_BUFFER_F_QOS_DATA_VALID))
+ {
+ ip4_0_tos = vnet_buffer2 (b0)->qos.bits;
+ ip4_0->tos = ip4_0_tos;
+ }
+
l3_0 = (u8*)ip4_0;
udp0 = &hdr->udp;
}
@@ -374,6 +404,11 @@ vxlan_encap_inline (vlib_main_t * vm,
ip_csum_t sum0 = ip4_0->checksum;
sum0 = ip_csum_update (sum0, 0, ip4_0->length, ip4_header_t,
length /* changed member */);
+ if (PREDICT_FALSE (ip4_0_tos))
+ {
+ sum0 = ip_csum_update (sum0, 0, ip4_0_tos, ip4_header_t,
+ tos /* changed member */);
+ }
ip4_0->checksum = ip_csum_fold (sum0);
}
/* IPv6 UDP checksum is mandatory */