From 6809538e646bf86c000dc1faba60b0a4157ad898 Mon Sep 17 00:00:00 2001 From: Mohsin Kazmi Date: Wed, 10 Feb 2021 11:26:24 +0100 Subject: 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 --- src/vnet/interface_output.c | 19 ++++++------------- 1 file changed, 6 insertions(+), 13 deletions(-) (limited to 'src/vnet/interface_output.c') diff --git a/src/vnet/interface_output.c b/src/vnet/interface_output.c index 3363f76b722..ff315f6abe0 100644 --- a/src/vnet/interface_output.c +++ b/src/vnet/interface_output.c @@ -337,28 +337,24 @@ vnet_interface_output_node_inline (vlib_main_t * vm, if (do_tx_offloads) { - u32 vnet_buffer_offload_flags = - (VNET_BUFFER_F_OFFLOAD_TCP_CKSUM | - VNET_BUFFER_F_OFFLOAD_UDP_CKSUM | - VNET_BUFFER_F_OFFLOAD_IP_CKSUM); - if (or_flags & vnet_buffer_offload_flags) + if (or_flags & VNET_BUFFER_F_OFFLOAD) { - if (b[0]->flags & vnet_buffer_offload_flags) + if (b[0]->flags & VNET_BUFFER_F_OFFLOAD) vnet_calc_checksums_inline (vm, b[0], b[0]->flags & VNET_BUFFER_F_IS_IP4, b[0]->flags & VNET_BUFFER_F_IS_IP6); - if (b[1]->flags & vnet_buffer_offload_flags) + if (b[1]->flags & VNET_BUFFER_F_OFFLOAD) vnet_calc_checksums_inline (vm, b[1], b[1]->flags & VNET_BUFFER_F_IS_IP4, b[1]->flags & VNET_BUFFER_F_IS_IP6); - if (b[2]->flags & vnet_buffer_offload_flags) + if (b[2]->flags & VNET_BUFFER_F_OFFLOAD) vnet_calc_checksums_inline (vm, b[2], b[2]->flags & VNET_BUFFER_F_IS_IP4, b[2]->flags & VNET_BUFFER_F_IS_IP6); - if (b[3]->flags & vnet_buffer_offload_flags) + if (b[3]->flags & VNET_BUFFER_F_OFFLOAD) vnet_calc_checksums_inline (vm, b[3], b[3]->flags & VNET_BUFFER_F_IS_IP4, @@ -406,10 +402,7 @@ vnet_interface_output_node_inline (vlib_main_t * vm, if (do_tx_offloads) { - if (b[0]->flags & - (VNET_BUFFER_F_OFFLOAD_TCP_CKSUM | - VNET_BUFFER_F_OFFLOAD_UDP_CKSUM | - VNET_BUFFER_F_OFFLOAD_IP_CKSUM)) + if (b[0]->flags & VNET_BUFFER_F_OFFLOAD) vnet_calc_checksums_inline (vm, b[0], b[0]->flags & VNET_BUFFER_F_IS_IP4, -- cgit 1.2.3-korg