From e28c87cd00644205e9bebca054029a8e655ed015 Mon Sep 17 00:00:00 2001 From: Neale Ranns Date: Fri, 5 Jul 2019 00:53:45 -0700 Subject: gbp: Ownership of dynamically created vxlan-gbp tunnels managed via gbp_itf Type: fix This solves the ownership of vxlan-gbp tunnels. When the last reference of these goes away they need to be deleted. Currently there are two owners; gbp_itf via gef_itf and the lock held by the gbp_endpoint_location_t. The problem is that the loc removes its reference whilst the fwd still holds the gbp_itf, and things go wrong. This change moves the lifecycle management of the vxlan-gbp tunnel to the gbp_itf. When the last lock of the gbp_itf goes, so does the tunnel. now both the EP's loc and fwd can hold a lock on the gbp_itf and it's only removed when required. The other change is the management of the 'user' of the gbp_itf. Since each user can enable and disable different features, it's the job of the gbp_itf to apply the combined set. determining a unique 'uesr' from the caller was near impossible, so I moved that to the gbp_itf, and return the allocated user, hence the 'handle' that encodes both user and interface. The hash table maps from sw_if_index to pool index. Change-Id: I4c7bf4c0e5dcf33d1c545f262365e69151febcf4 Signed-off-by: Neale Ranns --- src/plugins/gbp/gbp_endpoint_group.c | 31 ++++++++++++------------------- 1 file changed, 12 insertions(+), 19 deletions(-) (limited to 'src/plugins/gbp/gbp_endpoint_group.c') diff --git a/src/plugins/gbp/gbp_endpoint_group.c b/src/plugins/gbp/gbp_endpoint_group.c index bacbb0cfb5e..19c05f93ce2 100644 --- a/src/plugins/gbp/gbp_endpoint_group.c +++ b/src/plugins/gbp/gbp_endpoint_group.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include @@ -87,7 +88,6 @@ gbp_endpoint_group_add_and_lock (vnid_t vnid, if (INDEX_INVALID == ggi) { - gbp_bridge_domain_t *gb; fib_protocol_t fproto; index_t gbi, grdi; @@ -104,16 +104,14 @@ gbp_endpoint_group_add_and_lock (vnid_t vnid, return (VNET_API_ERROR_NO_SUCH_FIB); } - gb = gbp_bridge_domain_get (gbi); - pool_get_zero (gbp_endpoint_group_pool, gg); gg->gg_vnid = vnid; gg->gg_rd = grdi; gg->gg_gbd = gbi; - gg->gg_bd_index = gb->gb_bd_index; gg->gg_uplink_sw_if_index = uplink_sw_if_index; + gbp_itf_hdl_reset (&gg->gg_uplink_itf); gg->gg_locks = 1; gg->gg_sclass = sclass; gg->gg_retention = *retention; @@ -138,10 +136,11 @@ gbp_endpoint_group_add_and_lock (vnid_t vnid, * Add the uplink to the BD * packets direct from the uplink have had policy applied */ - gbp_bridge_domain_itf_add (gg->gg_uplink_sw_if_index, - gg->gg_bd_index, L2_BD_PORT_TYPE_NORMAL); - l2input_intf_bitmap_enable (gg->gg_uplink_sw_if_index, - L2INPUT_FEAT_GBP_NULL_CLASSIFY, 1); + gg->gg_uplink_itf = + gbp_itf_l2_add_and_lock (gg->gg_uplink_sw_if_index, gbi); + + gbp_itf_l2_set_input_feature (gg->gg_uplink_itf, + L2INPUT_FEAT_GBP_NULL_CLASSIFY); } hash_set (gbp_endpoint_group_db.gg_hash_sclass, @@ -176,13 +175,8 @@ gbp_endpoint_group_unlock (index_t ggi) gg = pool_elt_at_index (gbp_endpoint_group_pool, ggi); - if (~0 != gg->gg_uplink_sw_if_index) - { - gbp_bridge_domain_itf_del (gg->gg_uplink_sw_if_index, - gg->gg_bd_index, L2_BD_PORT_TYPE_NORMAL); - l2input_intf_bitmap_enable (gg->gg_uplink_sw_if_index, - L2INPUT_FEAT_GBP_NULL_CLASSIFY, 0); - } + gbp_itf_unlock (&gg->gg_uplink_itf); + FOR_EACH_FIB_IP_PROTOCOL (fproto) { dpo_reset (&gg->gg_dpo[fproto]); @@ -332,16 +326,15 @@ u8 * format_gbp_endpoint_group (u8 * s, va_list * args) { gbp_endpoint_group_t *gg = va_arg (*args, gbp_endpoint_group_t*); - vnet_main_t *vnm = vnet_get_main (); if (NULL != gg) - s = format (s, "[%d] %d, sclass:%d bd:[%d,%d] rd:[%d] uplink:%U retention:%U locks:%d", + s = format (s, "[%d] %d, sclass:%d bd:%d rd:%d uplink:%U retention:%U locks:%d", gg - gbp_endpoint_group_pool, gg->gg_vnid, gg->gg_sclass, - gbp_endpoint_group_get_bd_id(gg), gg->gg_bd_index, + gg->gg_gbd, gg->gg_rd, - format_vnet_sw_if_index_name, vnm, gg->gg_uplink_sw_if_index, + format_gbp_itf_hdl, gg->gg_uplink_itf, format_gbp_endpoint_retention, &gg->gg_retention, gg->gg_locks); else -- cgit 1.2.3-korg