From 5a228c03d849c86c10ee69d9951695b0649f82ce Mon Sep 17 00:00:00 2001 From: Saeed Mahameed Date: Tue, 27 Jan 2015 15:58:06 +0200 Subject: [PATCH] net/mlx4_en: Use ethtool cmd->autoneg as a hint for ethtool set settings Use cmd->autoneg as a user hint to decide what to set in ethtool set settings callback. When cmd->autoneg == AUTONEG_ENABLE set according to ethtool->advertise otherwise, set according to ethtool->speed. Usage: - ethtool -s eth speed 56000 autoneg off - ethtool -s eth advertise 0x800000 autoneg on While we're here: - Move proto_admin masking outcome check to be adjacent to the operation. - Move en_warn("port reset..") print to "port reset" block. Fixes: 312df74 ("net/mlx4_en: mlx4_en_set_settings() always fails when autoneg is set") Signed-off-by: Saeed Mahameed Signed-off-by: Amir Vadai Signed-off-by: David S. Miller --- .../net/ethernet/mellanox/mlx4/en_ethtool.c | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c index 569eda9e83d6..a7b58ba8492b 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c @@ -770,22 +770,20 @@ static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) return 0; } - proto_admin = cpu_to_be32(ptys_adv); - if (speed >= 0 && speed != priv->port_state.link_speed) - /* If speed was set then speed decides :-) */ - proto_admin = speed_set_ptys_admin(priv, speed, - ptys_reg.eth_proto_cap); + proto_admin = cmd->autoneg == AUTONEG_ENABLE ? + cpu_to_be32(ptys_adv) : + speed_set_ptys_admin(priv, speed, + ptys_reg.eth_proto_cap); proto_admin &= ptys_reg.eth_proto_cap; - - if (proto_admin == ptys_reg.eth_proto_admin) - return 0; /* Nothing to change */ - if (!proto_admin) { en_warn(priv, "Not supported link mode(s) requested, check supported link modes.\n"); return -EINVAL; /* nothing to change due to bad input */ } + if (proto_admin == ptys_reg.eth_proto_admin) + return 0; /* Nothing to change */ + en_dbg(DRV, priv, "mlx4_ACCESS_PTYS_REG SET: ptys_reg.eth_proto_admin = 0x%x\n", be32_to_cpu(proto_admin)); @@ -798,9 +796,9 @@ static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) return ret; } - en_warn(priv, "Port link mode changed, restarting port...\n"); mutex_lock(&priv->mdev->state_lock); if (priv->port_up) { + en_warn(priv, "Port link mode changed, restarting port...\n"); mlx4_en_stop_port(dev, 1); if (mlx4_en_start_port(dev)) en_err(priv, "Failed restarting port %d\n", priv->port); -- 2.20.1