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Commit f1fecb1d authored by Elad Raz's avatar Elad Raz Committed by David S. Miller
Browse files

bridge: Reflect MDB entries to hardware 



Offload MDB changes per port to hardware

Signed-off-by: default avatarElad Raz <eladr@mellanox.com>
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
Reviewed-by: default avatarNikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4d41e125

net/bridge/br_mdb.c

+23 −0
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ 
#include <linux/if_ether.h>

#include <net/ip.h>

#include <net/netlink.h>

#include <net/switchdev.h>

#if IS_ENABLED(CONFIG_IPV6)

#include <net/ipv6.h>

#include <net/addrconf.h>
@@ -210,10 +211,32 @@ static inline size_t rtnl_mdb_nlmsg_size(void) 
static void __br_mdb_notify(struct net_device *dev, struct br_mdb_entry *entry,

			    int type)

{

	struct switchdev_obj_port_mdb mdb = {

		.obj = {

			.id = SWITCHDEV_OBJ_ID_PORT_MDB,

			.flags = SWITCHDEV_F_DEFER,

		},

		.vid = entry->vid,

	};

	struct net_device *port_dev;

	struct net *net = dev_net(dev);

	struct sk_buff *skb;

	int err = -ENOBUFS;



	port_dev = __dev_get_by_index(net, entry->ifindex);

	if (entry->addr.proto == htons(ETH_P_IP))

		ip_eth_mc_map(entry->addr.u.ip4, mdb.addr);

#if IS_ENABLED(CONFIG_IPV6)

	else

		ipv6_eth_mc_map(&entry->addr.u.ip6, mdb.addr);

#endif



	mdb.obj.orig_dev = port_dev;

	if (port_dev && type == RTM_NEWMDB)

		switchdev_port_obj_add(port_dev, &mdb.obj);

	else if (port_dev && type == RTM_DELMDB)

		switchdev_port_obj_del(port_dev, &mdb.obj);



	skb = nlmsg_new(rtnl_mdb_nlmsg_size(), GFP_ATOMIC);

	if (!skb)

		goto errout;