From: Alexandra Winter <wintera@linux.ibm.com>
Date: Thu, 10 Sep 2020 19:23:48 +0200
Subject: bridge: Add SWITCHDEV_FDB_FLUSH_TO_BRIDGE notifier
Git-commit: d05e8e68b07cef9d52bbf53e75fa5faea81e1da6
Patch-mainline: v5.10-rc1
References: jsc#SLE-13764
so the switchdev can notifiy the bridge to flush non-permanent fdb entries
for this port. This is useful whenever the hardware fdb of the switchdev
is reset, but the netdev and the bridgeport are not deleted.
Note that this has the same effect as the IFLA_BRPORT_FLUSH attribute.
CC: Jiri Pirko <jiri@resnulli.us>
CC: Ivan Vecera <ivecera@redhat.com>
CC: Roopa Prabhu <roopa@nvidia.com>
CC: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Alexandra Winter <wintera@linux.ibm.com>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Acked-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
include/net/switchdev.h | 1 +
net/bridge/br.c | 5 +++++
2 files changed, 6 insertions(+)
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -102,6 +102,7 @@ enum switchdev_notifier_type {
SWITCHDEV_FDB_ADD_TO_DEVICE,
SWITCHDEV_FDB_DEL_TO_DEVICE,
SWITCHDEV_FDB_OFFLOADED,
+ SWITCHDEV_FDB_FLUSH_TO_BRIDGE,
SWITCHDEV_PORT_OBJ_ADD, /* Blocking. */
SWITCHDEV_PORT_OBJ_DEL, /* Blocking. */
--- a/net/bridge/br.c
+++ b/net/bridge/br.c
@@ -183,6 +183,11 @@ static int br_switchdev_event(struct not
br_fdb_offloaded_set(br, p, fdb_info->addr,
fdb_info->vid, fdb_info->offloaded);
break;
+ case SWITCHDEV_FDB_FLUSH_TO_BRIDGE:
+ fdb_info = ptr;
+ /* Don't delete static entries */
+ br_fdb_delete_by_port(br, p, fdb_info->vid, 0);
+ break;
}
out: