diff options
| author |   Neale Ranns <neale@graphiant.com> | 2021-08-06 09:03:45 +0000 |
|---|---|---|
| committer | Neale Ranns <neale@graphiant.com> | 2021-10-03 16:18:06 +0000 |
| commit | 9bd92abc7cef482ce67a80ecbbeabb5eb586a06c (patch) | |
| tree | 05b9dfc4a70c0ef56c2044c5ec73ccb60f78b1fe | |
| parent | f5462369f3ad22c9d19f54832faa2b6e61449f66 (diff) | |
mpls: Save the L3 header offset in the meta-data before label imposition
Type: improvement
Subsequent features in the data-path can thus easily find the l3 header
without parsing the label stack.
Signed-off-by: Neale Ranns <neale@graphiant.com>
Change-Id: I26f7d4bbe9186aeb8654706579c72424e8ecca2c
| -rw-r--r-- | src/vnet/dpo/mpls_label_dpo.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/vnet/dpo/mpls_label_dpo.c b/src/vnet/dpo/mpls_label_dpo.c index b87cb1efcd2..7856f050cb0 100644 --- a/src/vnet/dpo/mpls_label_dpo.c +++ b/src/vnet/dpo/mpls_label_dpo.c @@ -439,8 +439,14 @@ mpls_label_imposition_inline (vlib_main_t * vm, if (DPO_PROTO_MPLS != dproto) { /* - * These are the non-MPLS payload imposition cases + * These are the non-MPLS payload imposition cases. + * Save the l3 offset */ + vnet_buffer (b0)->l3_hdr_offset = b0->current_data; + vnet_buffer (b1)->l3_hdr_offset = b1->current_data; + vnet_buffer (b2)->l3_hdr_offset = b2->current_data; + vnet_buffer (b3)->l3_hdr_offset = b3->current_data; + if (DPO_PROTO_IP4 == dproto) { ip4_header_t * ip0 = vlib_buffer_get_current(b0); @@ -785,6 +791,8 @@ mpls_label_imposition_inline (vlib_main_t * vm, if (DPO_PROTO_MPLS != dproto) { + vnet_buffer (b0)->l3_hdr_offset = b0->current_data; + if (DPO_PROTO_IP4 == dproto) { /* |