diff options
| author | Amit Cohen <amitc@mellanox.com> | 2019-05-29 10:59:45 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-05-30 12:30:47 -0700 |
| commit | 275e928f19117d22f6d26dee94548baf4041b773 (patch) | |
| tree | 0af4ead8c30b69f988ce9dc8dae9bf77a05f1c32 | |
| parent | ef74422020aa8c224b00a927e3e47faac4d8fae3 (diff) | |
| download | linux-275e928f19117d22f6d26dee94548baf4041b773.tar.bz2 | |
mlxsw: spectrum: Prevent force of 56G
Force of 56G is not supported by hardware in Ethernet devices. This
configuration fails with a bad parameter error from firmware.
Add check of this case. Instead of trying to set 56G with autoneg off,
return a meaningful error.
Fixes: 56ade8fe3fe1 ("mlxsw: spectrum: Add initial support for Spectrum ASIC")
Signed-off-by: Amit Cohen <amitc@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index dbb425717f5e..dfe6b44baf63 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -3128,6 +3128,10 @@ mlxsw_sp_port_set_link_ksettings(struct net_device *dev, ops->reg_ptys_eth_unpack(mlxsw_sp, ptys_pl, ð_proto_cap, NULL, NULL); autoneg = cmd->base.autoneg == AUTONEG_ENABLE; + if (!autoneg && cmd->base.speed == SPEED_56000) { + netdev_err(dev, "56G not supported with autoneg off\n"); + return -EINVAL; + } eth_proto_new = autoneg ? ops->to_ptys_advert_link(mlxsw_sp, cmd) : ops->to_ptys_speed(mlxsw_sp, cmd->base.speed); |