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route: Add multipath_hash in flowi_common to make user-define hash

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Current fib_multipath_hash_policy can make hash based on the L3 or
L4. But it only work on the outer IP. So a specific tunnel always
has the same hash value. But a specific tunnel may contain so many
inner connections.

This patch provide a generic multipath_hash in floi_common. It can
make a user-define hash which can mix with L3 or L4 hash.

Signed-off-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
wenxu
2019-02-24 11:36:20 +08:00
committed by David S. Miller
parent 8f4ef499c6
commit 24ba14406c
6 changed files with 13 additions and 6 deletions
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2
drivers/net/ethernet/mellanox/mlxsw/spectrum_span.c
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@@ -305,7 +305,7 @@ mlxsw_sp_span_gretap4_route(const struct net_device *to_dev,
parms = mlxsw_sp_ipip_netdev_parms4(to_dev);
ip_tunnel_init_flow(&fl4, parms.iph.protocol, *daddrp, *saddrp,
0, 0, parms.link, tun->fwmark);
0, 0, parms.link, tun->fwmark, 0);
rt = ip_route_output_key(tun->net, &fl4);
if (IS_ERR(rt))