From 3eea9de899f4affbe6695bb314989981fca8f234 Mon Sep 17 00:00:00 2001 From: Neale Ranns Date: Fri, 21 Jun 2019 02:09:25 -0700 Subject: gbp: Consider data-plane learnt source better than control-plane Type: feature Change-Id: Ice8fc0da6450d2aa8ba63ca1277393ac3605aa2c Signed-off-by: Neale Ranns --- src/plugins/gbp/gbp_endpoint.c | 10 ++++++++++ src/plugins/gbp/gbp_endpoint.h | 6 ++++-- src/plugins/gbp/gbp_learn_node.c | 4 ++-- 3 files changed, 16 insertions(+), 4 deletions(-) (limited to 'src/plugins') diff --git a/src/plugins/gbp/gbp_endpoint.c b/src/plugins/gbp/gbp_endpoint.c index da15b49d81b..d759da2bece 100644 --- a/src/plugins/gbp/gbp_endpoint.c +++ b/src/plugins/gbp/gbp_endpoint.c @@ -101,6 +101,16 @@ gbp_endpoint_is_external (const gbp_endpoint_t * ge) return (! !(ge->ge_fwd.gef_flags & GBP_ENDPOINT_FLAG_EXTERNAL)); } +int +gbp_endpoint_is_learnt (const gbp_endpoint_t * ge) +{ + if (0 == vec_len (ge->ge_locs)) + return 0; + + /* DP is the highest source so if present it will be first */ + return (ge->ge_locs[0].gel_src == GBP_ENDPOINT_SRC_DP); +} + static void gbp_endpoint_extract_key_mac_itf (const clib_bihash_kv_16_8_t * key, mac_address_t * mac, u32 * sw_if_index) diff --git a/src/plugins/gbp/gbp_endpoint.h b/src/plugins/gbp/gbp_endpoint.h index a0d354ab8ab..27df6447e20 100644 --- a/src/plugins/gbp/gbp_endpoint.h +++ b/src/plugins/gbp/gbp_endpoint.h @@ -58,11 +58,13 @@ extern u8 *format_gbp_endpoint_flags (u8 * s, va_list * args); /** * Sources of Endpoints in priority order. The best (lowest value) source - * provides the forwarding information + * provides the forwarding information. + * Data-plane takes preference because the CP data is not always complete, + * it may not have the sclass. */ #define foreach_gbp_endpoint_src \ - _(CP, "control-plane") \ _(DP, "data-plane") \ + _(CP, "control-plane") \ _(RR, "recursive-resolution") typedef enum gbp_endpoint_src_t_ diff --git a/src/plugins/gbp/gbp_learn_node.c b/src/plugins/gbp/gbp_learn_node.c index 8c623e8bd3e..42d1ceb83e1 100644 --- a/src/plugins/gbp/gbp_learn_node.c +++ b/src/plugins/gbp/gbp_learn_node.c @@ -543,7 +543,7 @@ gbp_learn_l3 (vlib_main_t * vm, ge0 = gbp_endpoint_find_ip6 (&ip6_0->src_address, fib_index0); - if (NULL == ge0) + if ((NULL == ge0) || !gbp_endpoint_is_learnt (ge0)) { t0 = throttle_check (&glm->gl_l3_throttle, thread_index, @@ -576,7 +576,7 @@ 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) + if ((NULL == ge0) || !gbp_endpoint_is_learnt (ge0)) { t0 = throttle_check (&glm->gl_l3_throttle, thread_index, ip4_0->src_address.as_u32, seed); -- cgit 1.2.3-korg