From 072401e8096c648b91f958bd911f64ce24fecff9 Mon Sep 17 00:00:00 2001 From: Damjan Marion Date: Thu, 13 Jul 2017 18:53:27 +0200 Subject: Introduce l{2,3,4}_hdr_offset fields in the buffer metadata To save space in the first cacheline following is changed: - total_length_not_including_first_buffer moved to the 2nd cacheline. This field is used only when VLIB_BUFFER_TOTAL_LENGTH_VALID and VLIB_BUFFER_NEXT_PRESENT are both set. - free_list_index is now stored in 4bits inside flags, which allows up to 16 free lists. In case we need more we can store index in the 2nd cachelin Change-Id: Ic8521350819391af470d31d3fa1013e67ecb7681 Signed-off-by: Damjan Marion --- src/vnet/ethernet/ethernet.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'src/vnet/ethernet/ethernet.h') diff --git a/src/vnet/ethernet/ethernet.h b/src/vnet/ethernet/ethernet.h index dcc656a7dbb..2fc5b804dc3 100644 --- a/src/vnet/ethernet/ethernet.h +++ b/src/vnet/ethernet/ethernet.h @@ -344,8 +344,7 @@ ethernet_setup_node (vlib_main_t * vm, u32 node_index) always_inline ethernet_header_t * ethernet_buffer_get_header (vlib_buffer_t * b) { - return (void *) - (b->data + vnet_buffer (b)->ethernet.start_of_ethernet_header); + return (void *) (b->data + vnet_buffer (b)->l2_hdr_offset); } /** Returns the number of VLAN headers in the current Ethernet frame in the -- cgit 1.2.3-korg