diff options
Diffstat (limited to 'src/vnet/l2/l2_output.h')
| -rw-r--r-- | src/vnet/l2/l2_output.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/vnet/l2/l2_output.h b/src/vnet/l2/l2_output.h index c683b1ade73..9597205caed 100644 --- a/src/vnet/l2/l2_output.h +++ b/src/vnet/l2/l2_output.h @@ -94,6 +94,7 @@ l2output_main_t l2output_main; /* Mappings from feature ID to graph node name */ #define foreach_l2output_feat \ + _(OUTPUT, "interface-output") \ _(SPAN, "feature-bitmap-drop") \ _(CFM, "feature-bitmap-drop") \ _(QOS, "feature-bitmap-drop") \ @@ -217,9 +218,21 @@ l2_output_dispatch (vlib_main_t * vlib_main, vlib_buffer_t * b0, u32 sw_if_index, u32 feature_bitmap, u32 * next0) { - if (feature_bitmap) + /* + * The output feature bitmap always have at least the output feature bit set + * for a normal L2 interface (or all 0's if the interface is changed from L2 + * to L3 mode). So if next_nodes specified is that from the l2-output node and + * the bitmap is all clear except output feature bit, we know there is no more + * feature and will fall through to output packet. If next_nodes is from a L2 + * output feature node (and not l2-output), we always want to get the node for + * the next L2 output feature, including the last feature being interface- + * output node to output packet. + */ + if ((next_nodes != &l2output_main.next_nodes) + || ((feature_bitmap & ~L2OUTPUT_FEAT_OUTPUT) != 0)) { /* There are some features to execute */ + ASSERT (feature_bitmap != 0); /* Save bitmap for the next feature graph nodes */ vnet_buffer (b0)->l2.feature_bitmap = feature_bitmap; |