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authorMohsin Kazmi <sykazmi@cisco.com>2021-02-10 11:26:24 +0100
committerDamjan Marion <dmarion@me.com>2021-02-15 20:32:56 +0000
commit6809538e646bf86c000dc1faba60b0a4157ad898 (patch)
tree18a228b96226932381f15e44b4972636de1c7fe1 /src/plugins/gtpu
parent99c6dc6a7a36c0be95da9afb3ad8830b24754d4e (diff)
vlib: refactor checksum offload support
Type: refactor This patch refactors the offload flags in vlib_buffer_t. There are two main reasons behind this refactoring. First, offload flags are insufficient to represent outer and inner headers offloads. Second, room for these flags in first cacheline of vlib_buffer_t is also limited. This patch introduces a generic offload flag in first cacheline. And detailed offload flags in 2nd cacheline of the structure for performance optimization. Change-Id: Icc363a142fb9208ec7113ab5bbfc8230181f6004 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Diffstat (limited to 'src/plugins/gtpu')
-rw-r--r--src/plugins/gtpu/gtpu_decap.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/src/plugins/gtpu/gtpu_decap.c b/src/plugins/gtpu/gtpu_decap.c
index e3bc476ed6d..974ae8a8190 100644
--- a/src/plugins/gtpu/gtpu_decap.c
+++ b/src/plugins/gtpu/gtpu_decap.c
@@ -1257,13 +1257,15 @@ static char *gtpu_flow_error_strings[] = {
};
-#define gtpu_local_need_csum_check(_b) \
- (!(_b->flags & VNET_BUFFER_F_L4_CHECKSUM_COMPUTED \
- || _b->flags & VNET_BUFFER_F_OFFLOAD_UDP_CKSUM))
-
-#define gtpu_local_csum_is_valid(_b) \
- ((_b->flags & VNET_BUFFER_F_L4_CHECKSUM_CORRECT \
- || _b->flags & VNET_BUFFER_F_OFFLOAD_UDP_CKSUM) != 0)
+#define gtpu_local_need_csum_check(_b) \
+ (!(_b->flags & VNET_BUFFER_F_L4_CHECKSUM_COMPUTED || \
+ (_b->flags & VNET_BUFFER_F_OFFLOAD && \
+ vnet_buffer2 (_b)->oflags & VNET_BUFFER_OFFLOAD_F_UDP_CKSUM)))
+
+#define gtpu_local_csum_is_valid(_b) \
+ ((_b->flags & VNET_BUFFER_F_L4_CHECKSUM_CORRECT || \
+ (_b->flags & VNET_BUFFER_F_OFFLOAD && \
+ vnet_buffer2 (_b)->oflags & VNET_BUFFER_OFFLOAD_F_UDP_CKSUM)) != 0)
static_always_inline u8
gtpu_validate_udp_csum (vlib_main_t * vm, vlib_buffer_t *b)