netdev - [PATCH net-next v2 2/8] net: add ndo_fdb

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Date:   Mon, 11 Apr 2022 20:29:28 +0300
From:   Nikolay Aleksandrov <razor@...ckwall.org>
To:     netdev@...r.kernel.org
Cc:     roopa@...dia.com, idosch@...sch.org, kuba@...nel.org,
        davem@...emloft.net, bridge@...ts.linux-foundation.org,
        Nikolay Aleksandrov <razor@...ckwall.org>
Subject: [PATCH net-next v2 2/8] net: add ndo_fdb_flush op

Add a new netdev op called ndo_fdb_flush, it will be later used for
driver-specific flush implementation dispatched from rtnetlink. The first
user will be the bridge.

Signed-off-by: Nikolay Aleksandrov <razor@...ckwall.org>
---
 include/linux/netdevice.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 28ea4f8269d4..16d67e40053c 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1265,6 +1265,12 @@ struct netdev_net_notifier {
  *		       int *idx)
  *	Used to add FDB entries to dump requests. Implementers should add
  *	entries to skb and update idx with the number of entries.
+ * int (*ndo_fdb_flush)(struct ndmsg *ndm, struct nlattr *tb[],
+ *			struct net_device *dev,
+ *			u16 vid,
+ *			struct netlink_ext_ack *extack);
+ *	Used to flush FDB entries. Filter attributes can be specified to delete
+ *	only matching FDB entries if implementers support it.
  *
  * int (*ndo_bridge_setlink)(struct net_device *dev, struct nlmsghdr *nlh,
  *			     u16 flags, struct netlink_ext_ack *extack)
@@ -1515,6 +1521,11 @@ struct net_device_ops {
 						struct net_device *dev,
 						struct net_device *filter_dev,
 						int *idx);
+	int			(*ndo_fdb_flush)(struct ndmsg *ndm,
+						 struct nlattr *tb[],
+						 struct net_device *dev,
+						 u16 vid,
+						 struct netlink_ext_ack *extack);
 	int			(*ndo_fdb_get)(struct sk_buff *skb,
 					       struct nlattr *tb[],
 					       struct net_device *dev,
-- 
2.35.1