From: Nikolay Aleksandrov <niko...@cumulusnetworks.com> This patch implements support for the IFLA_BR_MCAST_HASH_MAX attribute in iproute2 so it can change the maximum hashed entries.
Signed-off-by: Nikolay Aleksandrov <niko...@cumulusnetworks.com> --- ip/iplink_bridge.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/ip/iplink_bridge.c b/ip/iplink_bridge.c index 14aae3e9b0d2..d15bd45dcdf6 100644 --- a/ip/iplink_bridge.c +++ b/ip/iplink_bridge.c @@ -37,6 +37,7 @@ static void print_explain(FILE *f) " [ mcast_query_use_ifaddr MCAST_QUERY_USE_IFADDR ]\n" " [ mcast_querier MULTICAST_QUERIER ]\n" " [ mcast_hash_elasticity HASH_ELASTICITY ]\n" + " [ mcast_hash_max HASH_MAX ]\n" "\n" "Where: VLAN_PROTOCOL := { 802.1Q | 802.1ad }\n" ); @@ -188,6 +189,15 @@ static int bridge_parse_opt(struct link_util *lu, int argc, char **argv, addattr32(n, 1024, IFLA_BR_MCAST_HASH_ELASTICITY, mcast_hash_el); + } else if (matches(*argv, "mcast_hash_max") == 0) { + __u32 mcast_hash_max; + + NEXT_ARG(); + if (get_u32(&mcast_hash_max, *argv, 0)) + invarg("invalid mcast_hash_max", *argv); + + addattr32(n, 1024, IFLA_BR_MCAST_HASH_MAX, + mcast_hash_max); } else if (matches(*argv, "help") == 0) { explain(); return -1; @@ -327,6 +337,10 @@ static void bridge_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) if (tb[IFLA_BR_MCAST_HASH_ELASTICITY]) fprintf(f, "mcast_hash_elasticity %u ", rta_getattr_u32(tb[IFLA_BR_MCAST_HASH_ELASTICITY])); + + if (tb[IFLA_BR_MCAST_HASH_MAX]) + fprintf(f, "mcast_hash_max %u ", + rta_getattr_u32(tb[IFLA_BR_MCAST_HASH_MAX])); } static void bridge_print_help(struct link_util *lu, int argc, char **argv, -- 2.4.3