bgpd: move l3nhg functions in separate bgp_nhg.[ch] file

This rework separates l3nhg functionality from the nexthop
tracking code, by introducing two bgp_nhg.[ch] files. The
calling functions are renamed from bgp_l3nhg* to bgp_nhg*.

Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>

1 files changed, 0 insertions, 87 deletions

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);
-}