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mlxsw: spectrum_router: Add support for ipv6 hash policy update 

Similar to 28678f07f1 ("mlxsw: spectrum_router: Update multipath hash
parameters upon netevents") for IPv4, make sure the kernel and asic are
using the same hash algorithm for path selection.

Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Tested-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern 2018-03-02 08:32:19 -08:00 committed by David S. Miller
parent b4bac172e9
commit 5e18b9c550
1 changed files with 14 additions and 1 deletions
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15
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
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@ -2431,6 +2431,7 @@ static int mlxsw_sp_router_netevent_event(struct notifier_block *nb,
mlxsw_sp_port_dev_put(mlxsw_sp_port);
break;
case NETEVENT_IPV4_MPATH_HASH_UPDATE:
case NETEVENT_IPV6_MPATH_HASH_UPDATE:
net = ptr;
if (!net_eq(net, &init_net))
@ -7030,13 +7031,25 @@ static void mlxsw_sp_mp4_hash_init(char *recr2_pl)
static void mlxsw_sp_mp6_hash_init(char *recr2_pl)
{
bool only_l3 = !init_net.ipv6.sysctl.multipath_hash_policy;
mlxsw_sp_mp_hash_header_set(recr2_pl,
MLXSW_REG_RECR2_IPV6_EN_NOT_TCP_NOT_UDP);
mlxsw_sp_mp_hash_header_set(recr2_pl, MLXSW_REG_RECR2_IPV6_EN_TCP_UDP);
mlxsw_reg_recr2_ipv6_sip_enable(recr2_pl);
mlxsw_reg_recr2_ipv6_dip_enable(recr2_pl);
mlxsw_sp_mp_hash_field_set(recr2_pl, MLXSW_REG_RECR2_IPV6_FLOW_LABEL);
mlxsw_sp_mp_hash_field_set(recr2_pl, MLXSW_REG_RECR2_IPV6_NEXT_HEADER);
if (only_l3) {
mlxsw_sp_mp_hash_field_set(recr2_pl,
MLXSW_REG_RECR2_IPV6_FLOW_LABEL);
} else {
mlxsw_sp_mp_hash_header_set(recr2_pl,
MLXSW_REG_RECR2_TCP_UDP_EN_IPV6);
mlxsw_sp_mp_hash_field_set(recr2_pl,
MLXSW_REG_RECR2_TCP_UDP_SPORT);
mlxsw_sp_mp_hash_field_set(recr2_pl,
MLXSW_REG_RECR2_TCP_UDP_DPORT);
}
}
static int mlxsw_sp_mp_hash_init(struct mlxsw_sp *mlxsw_sp)