diff options
| -rw-r--r-- | bgpd/bgp_evpn_mh.c | 10 | ||||
| -rw-r--r-- | bgpd/bgp_main.c | 4 | ||||
| -rw-r--r-- | bgpd/bgp_nhg.c | 99 | ||||
| -rw-r--r-- | bgpd/bgp_nhg.h | 18 | ||||
| -rw-r--r-- | bgpd/bgp_nht.c | 87 | ||||
| -rw-r--r-- | bgpd/bgp_nht.h | 6 | ||||
| -rw-r--r-- | bgpd/bgpd.c | 3 | ||||
| -rw-r--r-- | bgpd/subdir.am | 2 |
8 files changed, 128 insertions, 101 deletions
diff --git a/bgpd/bgp_evpn_mh.c b/bgpd/bgp_evpn_mh.c index a712310905..c7d8551b5e 100644 --- a/bgpd/bgp_evpn_mh.c +++ b/bgpd/bgp_evpn_mh.c @@ -37,7 +37,7 @@ #include "bgpd/bgp_zebra.h" #include "bgpd/bgp_addpath.h" #include "bgpd/bgp_label.h" -#include "bgpd/bgp_nht.h" +#include "bgpd/bgp_nhg.h" #include "bgpd/bgp_mpath.h" #include "bgpd/bgp_trace.h" @@ -3005,8 +3005,8 @@ static struct bgp_evpn_es_vrf *bgp_evpn_es_vrf_create(struct bgp_evpn_es *es, listnode_add(es->es_vrf_list, &es_vrf->es_listnode); /* setup the L3 NHG id for the ES */ - es_vrf->nhg_id = bgp_l3nhg_id_alloc(); - es_vrf->v6_nhg_id = bgp_l3nhg_id_alloc(); + es_vrf->nhg_id = bgp_nhg_id_alloc(); + es_vrf->v6_nhg_id = bgp_nhg_id_alloc(); if (BGP_DEBUG(evpn_mh, EVPN_MH_ES)) zlog_debug("es %s vrf %u nhg %u v6_nhg %d create", es->esi_str, @@ -3034,10 +3034,10 @@ static void bgp_evpn_es_vrf_delete(struct bgp_evpn_es_vrf *es_vrf) /* Remove the NHG resources */ bgp_evpn_l3nhg_deactivate(es_vrf); if (es_vrf->nhg_id) - bgp_l3nhg_id_free(es_vrf->nhg_id); + bgp_nhg_id_free(es_vrf->nhg_id); es_vrf->nhg_id = 0; if (es_vrf->v6_nhg_id) - bgp_l3nhg_id_free(es_vrf->v6_nhg_id); + bgp_nhg_id_free(es_vrf->v6_nhg_id); es_vrf->v6_nhg_id = 0; /* remove from the ES's VRF list */ diff --git a/bgpd/bgp_main.c b/bgpd/bgp_main.c index 11917c6c4a..e8d5a0307a 100644 --- a/bgpd/bgp_main.c +++ b/bgpd/bgp_main.c @@ -47,7 +47,7 @@ #include "bgpd/bgp_errors.h" #include "bgpd/bgp_script.h" #include "bgpd/bgp_evpn_mh.h" -#include "bgpd/bgp_nht.h" +#include "bgpd/bgp_nhg.h" #include "bgpd/bgp_routemap_nb.h" #include "bgpd/bgp_community_alias.h" @@ -199,7 +199,7 @@ static __attribute__((__noreturn__)) void bgp_exit(int status) bgp_delete(bgp_default); bgp_evpn_mh_finish(); - bgp_l3nhg_finish(); + bgp_nhg_finish(); /* reverse bgp_dump_init */ bgp_dump_finish(); diff --git a/bgpd/bgp_nhg.c b/bgpd/bgp_nhg.c new file mode 100644 index 0000000000..bf0ba77444 --- /dev/null +++ b/bgpd/bgp_nhg.c @@ -0,0 +1,99 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* BGP Nexthop Group Support + * Copyright (C) 2023 NVIDIA Corporation + * Copyright (C) 2023 6WIND + */ + +#include <zebra.h> + +#include <bgpd/bgpd.h> +#include <bgpd/bgp_debug.h> +#include <bgpd/bgp_nhg.h> + + +/**************************************************************************** + * L3 NHGs are used for fast failover of nexthops in the dplane. These are + * the APIs for allocating L3 NHG ids. Management of the L3 NHG itself is + * left to the application using it. + * PS: Currently EVPN host routes is the only app using L3 NHG for fast + * failover of remote ES links. + ***************************************************************************/ +static bitfield_t bgp_nh_id_bitmap; +static uint32_t bgp_nhg_start; + +/* XXX - currently we do nothing on the callbacks */ +static void bgp_nhg_add_cb(const char *name) +{ +} + +static void bgp_nhg_modify_cb(const struct nexthop_group_cmd *nhgc) +{ +} + +static void bgp_nhg_add_nexthop_cb(const struct nexthop_group_cmd *nhgc, + const struct nexthop *nhop) +{ +} + +static void bgp_nhg_del_nexthop_cb(const struct nexthop_group_cmd *nhgc, + const struct nexthop *nhop) +{ +} + +static void bgp_nhg_del_cb(const char *name) +{ +} + +static void bgp_nhg_zebra_init(void) +{ + static bool bgp_nhg_zebra_inited; + + if (bgp_nhg_zebra_inited) + return; + + bgp_nhg_zebra_inited = true; + bgp_nhg_start = zclient_get_nhg_start(ZEBRA_ROUTE_BGP); + nexthop_group_init(bgp_nhg_add_cb, bgp_nhg_modify_cb, + bgp_nhg_add_nexthop_cb, bgp_nhg_del_nexthop_cb, + bgp_nhg_del_cb); +} + +void bgp_nhg_init(void) +{ + uint32_t id_max; + + id_max = MIN(ZEBRA_NHG_PROTO_SPACING - 1, 16 * 1024); + bf_init(bgp_nh_id_bitmap, id_max); + bf_assign_zero_index(bgp_nh_id_bitmap); + + if (BGP_DEBUG(nht, NHT) || BGP_DEBUG(evpn_mh, EVPN_MH_ES)) + zlog_debug("bgp nhg range %u - %u", bgp_nhg_start + 1, + bgp_nhg_start + id_max); +} + +void bgp_nhg_finish(void) +{ + bf_free(bgp_nh_id_bitmap); +} + +uint32_t bgp_nhg_id_alloc(void) +{ + uint32_t nhg_id = 0; + + bgp_nhg_zebra_init(); + bf_assign_index(bgp_nh_id_bitmap, nhg_id); + if (nhg_id) + nhg_id += bgp_nhg_start; + + return nhg_id; +} + +void bgp_nhg_id_free(uint32_t nhg_id) +{ + if (!nhg_id || (nhg_id <= bgp_nhg_start)) + return; + + nhg_id -= bgp_nhg_start; + + bf_release_index(bgp_nh_id_bitmap, nhg_id); +} diff --git a/bgpd/bgp_nhg.h b/bgpd/bgp_nhg.h new file mode 100644 index 0000000000..370e8ab091 --- /dev/null +++ b/bgpd/bgp_nhg.h @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* BGP Nexthop Group Support + * Copyright (C) 2023 NVIDIA Corporation + * Copyright (C) 2023 6WIND + */ + +#ifndef _BGP_NHG_H +#define _BGP_NHG_H + +#include "nexthop_group.h" + +/* APIs for setting up and allocating L3 nexthop group ids */ +extern uint32_t bgp_nhg_id_alloc(void); +extern void bgp_nhg_id_free(uint32_t nhg_id); +extern void bgp_nhg_init(void); +void bgp_nhg_finish(void); + +#endif /* _BGP_NHG_H */ diff --git a/bgpd/bgp_nht.c b/bgpd/bgp_nht.c index 10c0382f6f..05fd0dc4e7 100644 --- a/bgpd/bgp_nht.c +++ b/bgpd/bgp_nht.c @@ -1569,90 +1569,3 @@ void bgp_nht_dereg_enhe_cap_intfs(struct peer *peer) 0); } } - -/**************************************************************************** - * L3 NHGs are used for fast failover of nexthops in the dplane. These are - * the APIs for allocating L3 NHG ids. Management of the L3 NHG itself is - * left to the application using it. - * PS: Currently EVPN host routes is the only app using L3 NHG for fast - * failover of remote ES links. - ***************************************************************************/ -static bitfield_t bgp_nh_id_bitmap; -static uint32_t bgp_l3nhg_start; - -/* XXX - currently we do nothing on the callbacks */ -static void bgp_l3nhg_add_cb(const char *name) -{ -} - -static void bgp_l3nhg_modify_cb(const struct nexthop_group_cmd *nhgc) -{ -} - -static void bgp_l3nhg_add_nexthop_cb(const struct nexthop_group_cmd *nhgc, - const struct nexthop *nhop) -{ -} - -static void bgp_l3nhg_del_nexthop_cb(const struct nexthop_group_cmd *nhgc, - const struct nexthop *nhop) -{ -} - -static void bgp_l3nhg_del_cb(const char *name) -{ -} - -static void bgp_l3nhg_zebra_init(void) -{ - static bool bgp_l3nhg_zebra_inited; - if (bgp_l3nhg_zebra_inited) - return; - - bgp_l3nhg_zebra_inited = true; - bgp_l3nhg_start = zclient_get_nhg_start(ZEBRA_ROUTE_BGP); - nexthop_group_init(bgp_l3nhg_add_cb, bgp_l3nhg_modify_cb, - bgp_l3nhg_add_nexthop_cb, bgp_l3nhg_del_nexthop_cb, - bgp_l3nhg_del_cb); -} - - -void bgp_l3nhg_init(void) -{ - uint32_t id_max; - - id_max = MIN(ZEBRA_NHG_PROTO_SPACING - 1, 16 * 1024); - bf_init(bgp_nh_id_bitmap, id_max); - bf_assign_zero_index(bgp_nh_id_bitmap); - - if (BGP_DEBUG(nht, NHT) || BGP_DEBUG(evpn_mh, EVPN_MH_ES)) - zlog_debug("bgp l3_nhg range %u - %u", bgp_l3nhg_start + 1, - bgp_l3nhg_start + id_max); -} - -void bgp_l3nhg_finish(void) -{ - bf_free(bgp_nh_id_bitmap); -} - -uint32_t bgp_l3nhg_id_alloc(void) -{ - uint32_t nhg_id = 0; - - bgp_l3nhg_zebra_init(); - bf_assign_index(bgp_nh_id_bitmap, nhg_id); - if (nhg_id) - nhg_id += bgp_l3nhg_start; - - return nhg_id; -} - -void bgp_l3nhg_id_free(uint32_t nhg_id) -{ - if (!nhg_id || (nhg_id <= bgp_l3nhg_start)) - return; - - nhg_id -= bgp_l3nhg_start; - - bf_release_index(bgp_nh_id_bitmap, nhg_id); -} diff --git a/bgpd/bgp_nht.h b/bgpd/bgp_nht.h index b9f0f6d469..e7c6fdc281 100644 --- a/bgpd/bgp_nht.h +++ b/bgpd/bgp_nht.h @@ -79,12 +79,6 @@ extern void bgp_nht_reg_enhe_cap_intfs(struct peer *peer); extern void bgp_nht_dereg_enhe_cap_intfs(struct peer *peer); extern void evaluate_paths(struct bgp_nexthop_cache *bnc); -/* APIs for setting up and allocating L3 nexthop group ids */ -extern uint32_t bgp_l3nhg_id_alloc(void); -extern void bgp_l3nhg_id_free(uint32_t nhg_id); -extern void bgp_l3nhg_init(void); -void bgp_l3nhg_finish(void); - extern void bgp_nht_ifp_up(struct interface *ifp); extern void bgp_nht_ifp_down(struct interface *ifp); diff --git a/bgpd/bgpd.c b/bgpd/bgpd.c index 4fa021ab93..0023855a9f 100644 --- a/bgpd/bgpd.c +++ b/bgpd/bgpd.c @@ -63,6 +63,7 @@ #include "bgpd/bgp_vty.h" #include "bgpd/bgp_mpath.h" #include "bgpd/bgp_nht.h" +#include "bgpd/bgp_nhg.h" #include "bgpd/bgp_updgrp.h" #include "bgpd/bgp_bfd.h" #include "bgpd/bgp_memory.h" @@ -8264,7 +8265,7 @@ void bgp_master_init(struct event_loop *master, const int buffer_size, /* mpls label dynamic allocation pool */ bgp_lp_init(bm->master, &bm->labelpool); - bgp_l3nhg_init(); + bgp_nhg_init(); bgp_evpn_mh_init(); QOBJ_REG(bm, bgp_master); } diff --git a/bgpd/subdir.am b/bgpd/subdir.am index 7de6e7a9f1..6d6fad0074 100644 --- a/bgpd/subdir.am +++ b/bgpd/subdir.am @@ -77,6 +77,7 @@ bgpd_libbgp_a_SOURCES = \ bgpd/bgp_zebra.c \ bgpd/bgpd.c \ bgpd/bgp_trace.c \ + bgpd/bgp_nhg.c \ # end if ENABLE_BGP_VNC @@ -160,6 +161,7 @@ noinst_HEADERS += \ bgpd/bgp_zebra.h \ bgpd/bgpd.h \ bgpd/bgp_trace.h \ + bgpd/bgp_nhg.h \ \ bgpd/rfapi/bgp_rfapi_cfg.h \ bgpd/rfapi/rfapi_import.h \ |