diff options
| author |   Steven <sluong@cisco.com> | 2017-12-03 23:40:54 -0800 |
|---|---|---|
| committer |   Damjan Marion <dmarion.lists@gmail.com> | 2017-12-04 20:18:21 +0000 |
| commit | 35de3b3376d66fbd2b4d5dc849db2cdeabc892f4 (patch) | |
| tree | 497f5c861fbc0a9f18311f78335eeacd104593cc | |
| parent | 2e292c6f6489015460e3fee8ec567791c897108e (diff) | |
vnet: set vnet_buffer l2_hdr_offset and l3_hdr_offset
Changes made in ethernet_input to set l2_hdr_offset,l3_hdr_offset, and
their corresponding flags.
Please note that ethernet_input, as a critical DP, incurs a few extra cpu
cycles due to this patch, but for a worthy cause.
Change-Id: Ie9ae352ea62959d2779ebcca98a1898e3d9e1d6f
Signed-off-by: Steven <sluong@cisco.com>
| -rwxr-xr-x | src/vnet/ethernet/node.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/vnet/ethernet/node.c b/src/vnet/ethernet/node.c index f216216d3d7..3760877dc79 100755 --- a/src/vnet/ethernet/node.c +++ b/src/vnet/ethernet/node.c @@ -103,6 +103,7 @@ parse_header (ethernet_input_variant_t variant, e0 = (void *) (b0->data + b0->current_data); vnet_buffer (b0)->l2_hdr_offset = b0->current_data; + b0->flags |= VNET_BUFFER_F_L2_HDR_OFFSET_VALID; vlib_buffer_advance (b0, sizeof (e0[0])); @@ -425,6 +426,14 @@ ethernet_input_inline (vlib_main_t * vm, vnet_buffer (b0)->l2_hdr_offset = b0->current_data; vnet_buffer (b1)->l2_hdr_offset = b1->current_data; + vnet_buffer (b0)->l3_hdr_offset = + vnet_buffer (b0)->l2_hdr_offset + sizeof (ethernet_header_t); + vnet_buffer (b1)->l3_hdr_offset = + vnet_buffer (b1)->l2_hdr_offset + sizeof (ethernet_header_t); + b0->flags |= VNET_BUFFER_F_L2_HDR_OFFSET_VALID | + VNET_BUFFER_F_L3_HDR_OFFSET_VALID; + b1->flags |= VNET_BUFFER_F_L2_HDR_OFFSET_VALID | + VNET_BUFFER_F_L3_HDR_OFFSET_VALID; if (PREDICT_TRUE (is_l20 != 0)) { @@ -573,6 +582,12 @@ ethernet_input_inline (vlib_main_t * vm, &next0); determine_next_node (em, variant, is_l21, type1, b1, &error1, &next1); + vnet_buffer (b0)->l3_hdr_offset = vnet_buffer (b0)->l2_hdr_offset + + vnet_buffer (b0)->l2.l2_len; + vnet_buffer (b1)->l3_hdr_offset = vnet_buffer (b1)->l2_hdr_offset + + vnet_buffer (b1)->l2.l2_len; + b0->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID; + b1->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID; ship_it01: b0->error = error_node->errors[error0]; @@ -644,6 +659,10 @@ ethernet_input_inline (vlib_main_t * vm, } vnet_buffer (b0)->l2_hdr_offset = b0->current_data; + vnet_buffer (b0)->l3_hdr_offset = + vnet_buffer (b0)->l2_hdr_offset + sizeof (ethernet_header_t); + b0->flags |= VNET_BUFFER_F_L2_HDR_OFFSET_VALID | + VNET_BUFFER_F_L3_HDR_OFFSET_VALID; if (PREDICT_TRUE (is_l20 != 0)) { @@ -741,6 +760,9 @@ ethernet_input_inline (vlib_main_t * vm, determine_next_node (em, variant, is_l20, type0, b0, &error0, &next0); + vnet_buffer (b0)->l3_hdr_offset = vnet_buffer (b0)->l2_hdr_offset + + vnet_buffer (b0)->l2.l2_len; + b0->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID; ship_it0: b0->error = error_node->errors[error0]; |