net/mlx5e: Report correct auto negotiation and allow toggling
Previous to this patch auto negotiation was reported off although it was
on by default in hardware. This patch reports the correct information to
ethtool and allows the user to toggle it on/off.
Added another parameter to set port proto function in order to pass
the auto negotiation field to the hardware.
Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index 4c560e0..39a4d96 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -702,6 +702,8 @@
u32 eth_proto_admin;
u32 eth_proto_lp;
u32 eth_proto_oper;
+ u8 an_disable_admin;
+ u8 an_status;
int err;
err = mlx5_query_port_ptys(mdev, out, sizeof(out), MLX5_PTYS_EN, 1);
@@ -712,10 +714,12 @@
goto err_query_ptys;
}
- eth_proto_cap = MLX5_GET(ptys_reg, out, eth_proto_capability);
- eth_proto_admin = MLX5_GET(ptys_reg, out, eth_proto_admin);
- eth_proto_oper = MLX5_GET(ptys_reg, out, eth_proto_oper);
- eth_proto_lp = MLX5_GET(ptys_reg, out, eth_proto_lp_advertise);
+ eth_proto_cap = MLX5_GET(ptys_reg, out, eth_proto_capability);
+ eth_proto_admin = MLX5_GET(ptys_reg, out, eth_proto_admin);
+ eth_proto_oper = MLX5_GET(ptys_reg, out, eth_proto_oper);
+ eth_proto_lp = MLX5_GET(ptys_reg, out, eth_proto_lp_advertise);
+ an_disable_admin = MLX5_GET(ptys_reg, out, an_disable_admin);
+ an_status = MLX5_GET(ptys_reg, out, an_status);
ethtool_link_ksettings_zero_link_mode(link_ksettings, supported);
ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
@@ -729,6 +733,18 @@
link_ksettings->base.port = get_connector_port(eth_proto_oper);
get_lp_advertising(eth_proto_lp, link_ksettings);
+ if (an_status == MLX5_AN_COMPLETE)
+ ethtool_link_ksettings_add_link_mode(link_ksettings,
+ lp_advertising, Autoneg);
+
+ link_ksettings->base.autoneg = an_disable_admin ? AUTONEG_DISABLE :
+ AUTONEG_ENABLE;
+ ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
+ Autoneg);
+ if (!an_disable_admin)
+ ethtool_link_ksettings_add_link_mode(link_ksettings,
+ advertising, Autoneg);
+
err_query_ptys:
return err;
}
@@ -764,9 +780,14 @@
{
struct mlx5e_priv *priv = netdev_priv(netdev);
struct mlx5_core_dev *mdev = priv->mdev;
- u32 link_modes;
- u32 speed;
u32 eth_proto_cap, eth_proto_admin;
+ bool an_changes = false;
+ u8 an_disable_admin;
+ u8 an_disable_cap;
+ bool an_disable;
+ u32 link_modes;
+ u8 an_status;
+ u32 speed;
int err;
speed = link_ksettings->base.speed;
@@ -797,10 +818,17 @@
goto out;
}
- if (link_modes == eth_proto_admin)
+ mlx5_query_port_autoneg(mdev, MLX5_PTYS_EN, &an_status,
+ &an_disable_cap, &an_disable_admin);
+
+ an_disable = link_ksettings->base.autoneg == AUTONEG_DISABLE;
+ an_changes = ((!an_disable && an_disable_admin) ||
+ (an_disable && !an_disable_admin));
+
+ if (!an_changes && link_modes == eth_proto_admin)
goto out;
- mlx5_set_port_proto(mdev, link_modes, MLX5_PTYS_EN);
+ mlx5_set_port_ptys(mdev, an_disable, link_modes, MLX5_PTYS_EN);
mlx5_toggle_port_link(mdev);
out: