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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>
This commit is contained in:
Nikolay Aleksandrov 2016-02-09 00:14:30 +01:00 committed by Stephen Hemminger
parent 92c0ef7071
commit 8b9eb7cd25
1 changed files with 14 additions and 0 deletions
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14
ip/iplink_bridge.c
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@ -38,6 +38,7 @@ 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"
);
@ -189,6 +190,15 @@ 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;
@ -346,6 +356,10 @@ 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,