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Commit 431db3c0 authored by Nikolay Aleksandrov's avatar Nikolay Aleksandrov Committed by David S. Miller
Browse files

bridge: netlink: add support for igmp's hash_elasticity 



Add IFLA_BR_MCAST_HASH_ELASTICITY to allow setting/getting
br->hash_elasticity via netlink.

Signed-off-by: default avatarNikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ba062d7c

include/uapi/linux/if_link.h

+1 −0
Original line number Diff line number Diff line
@@ -249,6 +249,7 @@ enum { 
	IFLA_BR_MCAST_SNOOPING,

	IFLA_BR_MCAST_QUERY_USE_IFADDR,

	IFLA_BR_MCAST_QUERIER,

	IFLA_BR_MCAST_HASH_ELASTICITY,

	__IFLA_BR_MAX,

};

net/bridge/br_netlink.c

+11 −1
Original line number Diff line number Diff line
@@ -771,6 +771,7 @@ static const struct nla_policy br_policy[IFLA_BR_MAX + 1] = { 
	[IFLA_BR_MCAST_SNOOPING] = { .type = NLA_U8 },

	[IFLA_BR_MCAST_QUERY_USE_IFADDR] = { .type = NLA_U8 },

	[IFLA_BR_MCAST_QUERIER] = { .type = NLA_U8 },

	[IFLA_BR_MCAST_HASH_ELASTICITY] = { .type = NLA_U32 },

};



static int br_changelink(struct net_device *brdev, struct nlattr *tb[],
@@ -897,6 +898,12 @@ static int br_changelink(struct net_device *brdev, struct nlattr *tb[], 
		if (err)

			return err;

	}



	if (data[IFLA_BR_MCAST_HASH_ELASTICITY]) {

		u32 val = nla_get_u32(data[IFLA_BR_MCAST_HASH_ELASTICITY]);



		br->hash_elasticity = val;

	}

#endif



	return 0;
@@ -931,6 +938,7 @@ static size_t br_get_size(const struct net_device *brdev) 
	       nla_total_size(sizeof(u8)) +     /* IFLA_BR_MCAST_SNOOPING */

	       nla_total_size(sizeof(u8)) +     /* IFLA_BR_MCAST_QUERY_USE_IFADDR */

	       nla_total_size(sizeof(u8)) +     /* IFLA_BR_MCAST_QUERIER */

	       nla_total_size(sizeof(u32)) +     /* IFLA_BR_MCAST_HASH_ELASTICITY */

#endif

	       0;

}
@@ -993,7 +1001,9 @@ static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev) 
	    nla_put_u8(skb, IFLA_BR_MCAST_SNOOPING, !br->multicast_disabled) ||

	    nla_put_u8(skb, IFLA_BR_MCAST_QUERY_USE_IFADDR,

		       br->multicast_query_use_ifaddr) ||

	    nla_put_u8(skb, IFLA_BR_MCAST_QUERIER, br->multicast_querier))

	    nla_put_u8(skb, IFLA_BR_MCAST_QUERIER, br->multicast_querier) ||

	    nla_put_u32(skb, IFLA_BR_MCAST_HASH_ELASTICITY,

			br->hash_elasticity))

		return -EMSGSIZE;

#endif