diff options
| author |   Mohsin Kazmi <sykazmi@cisco.com> | 2021-02-10 11:26:24 +0100 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2021-02-15 20:32:56 +0000 |
| commit | 6809538e646bf86c000dc1faba60b0a4157ad898 (patch) | |
| tree | 18a228b96226932381f15e44b4972636de1c7fe1 /src/vnet/ip/ip4_forward.c | |
| parent | 99c6dc6a7a36c0be95da9afb3ad8830b24754d4e (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/vnet/ip/ip4_forward.c')
| -rw-r--r-- | src/vnet/ip/ip4_forward.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c index 332c483aa9d..9e8d164b51f 100644 --- a/src/vnet/ip/ip4_forward.c +++ b/src/vnet/ip/ip4_forward.c @@ -1417,9 +1417,10 @@ ip4_local_l4_csum_validate (vlib_main_t * vm, vlib_buffer_t * p, } } -#define ip4_local_csum_is_offloaded(_b) \ - _b->flags & VNET_BUFFER_F_OFFLOAD_TCP_CKSUM \ - || _b->flags & VNET_BUFFER_F_OFFLOAD_UDP_CKSUM +#define ip4_local_csum_is_offloaded(_b) \ + ((_b->flags & VNET_BUFFER_F_OFFLOAD) && \ + (vnet_buffer2 (_b)->oflags & \ + (VNET_BUFFER_OFFLOAD_F_TCP_CKSUM | VNET_BUFFER_OFFLOAD_F_UDP_CKSUM))) #define ip4_local_need_csum_check(is_tcp_udp, _b) \ (is_tcp_udp && !(_b->flags & VNET_BUFFER_F_L4_CHECKSUM_COMPUTED \ @@ -2066,7 +2067,7 @@ ip4_ttl_and_checksum_check (vlib_buffer_t * b, ip4_header_t * ip, u16 * next, /* Verify checksum. */ ASSERT (ip4_header_checksum_is_valid (ip) || - (b->flags & VNET_BUFFER_F_OFFLOAD_IP_CKSUM)); + (vnet_buffer2 (b)->oflags & VNET_BUFFER_OFFLOAD_F_IP_CKSUM)); } |