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bgpd: Increase install/uninstall speed of evpn vpn vni's

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BGP receives notification from zebra about an vpn that
needs to be installed into the evpn tables.  Unfortunately
this function was walking the entirety of evpn tables
3 times.  Modify the code to walk the tree 1 time and
to just look for the needed route types as you go.

This reduces, in a scaled environment, processing
time of the zclient_read function from 130 seconds
to 95 seconds.  For a up / down / up interface
scenario.

Signed-off-by: Rajasekar Raja <rajasekarr@vndia.com>
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
This commit is contained in:
Donald Sharp 2024-04-11 13:28:30 -04:00
parent 5139ce8a3b
commit 9edf45b889
1 changed files with 21 additions and 47 deletions
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68
bgpd/bgp_evpn.c
View File

@ -3926,9 +3926,7 @@ static int install_uninstall_routes_for_vrf(struct bgp *bgp_vrf, int install)
* particular VNI.
*/
static int install_uninstall_routes_for_vni(struct bgp *bgp,
struct bgpevpn *vpn,
bgp_evpn_route_type rtype,
int install)
struct bgpevpn *vpn, int install)
{
afi_t afi;
safi_t safi;
@ -3959,7 +3957,9 @@ static int install_uninstall_routes_for_vni(struct bgp *bgp,
(const struct prefix_evpn *)bgp_dest_get_prefix(
dest);
if (evp->prefix.route_type != rtype)
if (evp->prefix.route_type != BGP_EVPN_IMET_ROUTE &&
evp->prefix.route_type != BGP_EVPN_AD_ROUTE &&
evp->prefix.route_type != BGP_EVPN_MAC_IP_ROUTE)
continue;
for (pi = bgp_dest_get_bgp_path_info(dest); pi;
@ -3986,16 +3986,16 @@ static int install_uninstall_routes_for_vni(struct bgp *bgp,
bgp, vpn, evp, pi);
if (ret) {
flog_err(
EC_BGP_EVPN_FAIL,
"%u: Failed to %s EVPN %s route in VNI %u",
bgp->vrf_id,
install ? "install"
: "uninstall",
rtype == BGP_EVPN_MAC_IP_ROUTE
? "MACIP"
: "IMET",
vpn->vni);
flog_err(EC_BGP_EVPN_FAIL,
"%u: Failed to %s EVPN %s route in VNI %u",
bgp->vrf_id,
install ? "install"
: "uninstall",
evp->prefix.route_type ==
BGP_EVPN_MAC_IP_ROUTE
? "MACIP"
: "IMET",
vpn->vni);
bgp_dest_unlock_node(rd_dest);
bgp_dest_unlock_node(dest);
@ -4024,23 +4024,11 @@ static int install_routes_for_vrf(struct bgp *bgp_vrf)
*/
static int install_routes_for_vni(struct bgp *bgp, struct bgpevpn *vpn)
{
int ret;
/* Install type-3 routes followed by type-2 routes - the ones applicable
/*
* Install type-3 routes followed by type-2 routes - the ones applicable
* for this VNI.
*/
ret = install_uninstall_routes_for_vni(bgp, vpn, BGP_EVPN_IMET_ROUTE,
1);
if (ret)
return ret;
ret = install_uninstall_routes_for_vni(bgp, vpn, BGP_EVPN_AD_ROUTE,
1);
if (ret)
return ret;
return install_uninstall_routes_for_vni(bgp, vpn, BGP_EVPN_MAC_IP_ROUTE,
1);
return install_uninstall_routes_for_vni(bgp, vpn, 1);
}
/* uninstall routes from l3vni vrf. */
@ -4056,25 +4044,11 @@ static int uninstall_routes_for_vrf(struct bgp *bgp_vrf)
*/
static int uninstall_routes_for_vni(struct bgp *bgp, struct bgpevpn *vpn)
{
int ret;
/* Uninstall type-2 routes followed by type-3 routes - the ones
* applicable
* for this VNI.
/*
* Uninstall type-2 routes followed by type-3 routes - the ones
* applicable for this VNI.
*/
ret = install_uninstall_routes_for_vni(bgp, vpn, BGP_EVPN_MAC_IP_ROUTE,
0);
if (ret)
return ret;
ret = install_uninstall_routes_for_vni(bgp, vpn, BGP_EVPN_AD_ROUTE,
0);
if (ret)
return ret;
return install_uninstall_routes_for_vni(bgp, vpn, BGP_EVPN_IMET_ROUTE,
0);
return install_uninstall_routes_for_vni(bgp, vpn, 0);
}
/*