Similar to 28678f07f127d ("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 <dsah...@gmail.com> --- drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index 93d48c1b2bf8..6f0457b6e408 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -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 +7031,21 @@ 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) -- 2.11.0