diff options
Diffstat (limited to 'src/plugins/gbp/gbp_learn_node.c')
| -rw-r--r-- | src/plugins/gbp/gbp_learn_node.c | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/src/plugins/gbp/gbp_learn_node.c b/src/plugins/gbp/gbp_learn_node.c index 113969a526b..a6c54971956 100644 --- a/src/plugins/gbp/gbp_learn_node.c +++ b/src/plugins/gbp/gbp_learn_node.c @@ -179,6 +179,28 @@ gbp_learn_get_outer (const ethernet_header_t * eh0, *outer_dst = ip0->dst_address; } +always_inline int +gbp_endpoint_update_required (const gbp_endpoint_t * ge0, + u32 rx_sw_if_index, sclass_t sclass) +{ + /* Conditions for [re]learning this EP */ + + /* 1. it doesn't have a dataplane source */ + if (!gbp_endpoint_is_learnt (ge0)) + return (!0); + + /* 2. has the input interface changed */ + if (gbp_itf_get_sw_if_index (ge0->ge_fwd.gef_itf) != rx_sw_if_index) + return (!0); + + /* 3. has the sclass changed */ + if (sclass != ge0->ge_fwd.gef_sclass) + return (!0); + + /* otherwise it's unchanged */ + return (0); +} + VLIB_NODE_FN (gbp_learn_l2_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) @@ -246,7 +268,7 @@ VLIB_NODE_FN (gbp_learn_l2_node) (vlib_main_t * vm, * check for new EP or a moved EP */ if (NULL == ge0 || - gbp_itf_get_sw_if_index (ge0->ge_fwd.gef_itf) != sw_if_index0) + gbp_endpoint_update_required (ge0, sw_if_index0, sclass0)) { /* * use the last 4 bytes of the mac address as the hash for the EP @@ -543,7 +565,8 @@ gbp_learn_l3 (vlib_main_t * vm, ge0 = gbp_endpoint_find_ip6 (&ip6_0->src_address, fib_index0); - if ((NULL == ge0) || !gbp_endpoint_is_learnt (ge0)) + if ((NULL == ge0) || + gbp_endpoint_update_required (ge0, sw_if_index0, sclass0)) { t0 = throttle_check (&glm->gl_l3_throttle, thread_index, @@ -576,7 +599,8 @@ gbp_learn_l3 (vlib_main_t * vm, gbp_learn_get_outer (eth0, &outer_src, &outer_dst); ge0 = gbp_endpoint_find_ip4 (&ip4_0->src_address, fib_index0); - if ((NULL == ge0) || !gbp_endpoint_is_learnt (ge0)) + if ((NULL == ge0) || + gbp_endpoint_update_required (ge0, sw_if_index0, sclass0)) { t0 = throttle_check (&glm->gl_l3_throttle, thread_index, ip4_0->src_address.as_u32, seed); |