Commit 7696c06a authored by Ido Schimmel's avatar Ido Schimmel Committed by David S. Miller

ipv6: Use a 31-bit multipath hash

The hash thresholds assigned to IPv6 nexthops are in the range of
[-1, 2^31 - 1], where a negative value is assigned to nexthops that
should not be considered during multipath selection.

Therefore, in a similar fashion to IPv4, we need to use the upper
31-bits of the multipath hash for multipath selection.
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Acked-by: default avatarDavid Ahern <dsahern@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d7dedee1
......@@ -1833,10 +1833,10 @@ u32 rt6_multipath_hash(const struct flowi6 *fl6, const struct sk_buff *skb)
if (skb) {
ip6_multipath_l3_keys(skb, &hash_keys);
return flow_hash_from_keys(&hash_keys);
return flow_hash_from_keys(&hash_keys) >> 1;
}
return get_hash_from_flowi6(fl6);
return get_hash_from_flowi6(fl6) >> 1;
}
void ip6_route_input(struct sk_buff *skb)
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment