iplink: bridge: add support for IFLA_BR_MCAST_HASH_MAX
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 <nikolay@cumulusnetworks.com>
diff --git a/ip/iplink_bridge.c b/ip/iplink_bridge.c
index 93dcc98..f912c31 100644
--- a/ip/iplink_bridge.c
+++ b/ip/iplink_bridge.c
@@ -38,6 +38,7 @@
" [ 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"
);
@@ -189,6 +190,15 @@
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;
@@ -346,6 +356,10 @@
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,