Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit eb234ee9 authored by Shalom Lagziel's avatar Shalom Lagziel Committed by Saeed Mahameed
Browse files

net/mlx5e: IPoIB, Add support for get_link_ksettings in ethtool 



Add support for "ethtool DEVNAME" over ipoib ports,
Display standard port information for IPoIB netdevices using ethtool
For example:
$ ethtool ib2
> Settings for ib2:
        Supported ports: [ ]
        Supported link modes:   Not reported
        Supported pause frame use: No
        Supports auto-negotiation: No
        Advertised link modes:  Not reported
        Advertised pause frame use: No
        Advertised auto-negotiation: No
        Speed: 100000Mb/s
        Duplex: Full
        Port: Other
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: off
        Link detected: yes

Signed-off-by: default avatarShalom Lagziel <shaloml@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 1d1c3436

drivers/net/ethernet/mellanox/mlx5/core/ipoib/ethtool.c

+118 −12
Original line number Diff line number Diff line
@@ -131,6 +131,110 @@ static int mlx5i_flash_device(struct net_device *netdev, 
	return mlx5e_ethtool_flash_device(priv, flash);

}



enum mlx5_ptys_width {

	MLX5_PTYS_WIDTH_1X	= 1 << 0,

	MLX5_PTYS_WIDTH_2X	= 1 << 1,

	MLX5_PTYS_WIDTH_4X	= 1 << 2,

	MLX5_PTYS_WIDTH_8X	= 1 << 3,

	MLX5_PTYS_WIDTH_12X	= 1 << 4,

};



static inline int mlx5_ptys_width_enum_to_int(enum mlx5_ptys_width width)

{

	switch (width) {

	case MLX5_PTYS_WIDTH_1X:  return  1;

	case MLX5_PTYS_WIDTH_2X:  return  2;

	case MLX5_PTYS_WIDTH_4X:  return  4;

	case MLX5_PTYS_WIDTH_8X:  return  8;

	case MLX5_PTYS_WIDTH_12X: return 12;

	default:		  return -1;

	}

}



enum mlx5_ptys_rate {

	MLX5_PTYS_RATE_SDR	= 1 << 0,

	MLX5_PTYS_RATE_DDR	= 1 << 1,

	MLX5_PTYS_RATE_QDR	= 1 << 2,

	MLX5_PTYS_RATE_FDR10	= 1 << 3,

	MLX5_PTYS_RATE_FDR	= 1 << 4,

	MLX5_PTYS_RATE_EDR	= 1 << 5,

	MLX5_PTYS_RATE_HDR	= 1 << 6,

};



static inline int mlx5_ptys_rate_enum_to_int(enum mlx5_ptys_rate rate)

{

	switch (rate) {

	case MLX5_PTYS_RATE_SDR:   return 2500;

	case MLX5_PTYS_RATE_DDR:   return 5000;

	case MLX5_PTYS_RATE_QDR:

	case MLX5_PTYS_RATE_FDR10: return 10000;

	case MLX5_PTYS_RATE_FDR:   return 14000;

	case MLX5_PTYS_RATE_EDR:   return 25000;

	case MLX5_PTYS_RATE_HDR:   return 50000;

	default:		   return -1;

	}

}



static int mlx5i_get_port_settings(struct net_device *netdev,

				   u16 *ib_link_width_oper, u16 *ib_proto_oper)

{

	struct mlx5e_priv *priv    = mlx5i_epriv(netdev);

	struct mlx5_core_dev *mdev = priv->mdev;

	u32 out[MLX5_ST_SZ_DW(ptys_reg)] = {0};

	int ret;



	ret = mlx5_query_port_ptys(mdev, out, sizeof(out), MLX5_PTYS_IB, 1);

	if (ret)

		return ret;



	*ib_link_width_oper = MLX5_GET(ptys_reg, out, ib_link_width_oper);

	*ib_proto_oper      = MLX5_GET(ptys_reg, out, ib_proto_oper);



	return 0;

}



static int mlx5i_get_speed_settings(u16 ib_link_width_oper, u16 ib_proto_oper)

{

	int rate, width;



	rate = mlx5_ptys_rate_enum_to_int(ib_proto_oper);

	if (rate < 0)

		return -EINVAL;

	width = mlx5_ptys_width_enum_to_int(ib_link_width_oper);

	if (width < 0)

		return -EINVAL;



	return rate * width;

}



static int mlx5i_get_link_ksettings(struct net_device *netdev,

				    struct ethtool_link_ksettings *link_ksettings)

{

	u16 ib_link_width_oper;

	u16 ib_proto_oper;

	int speed, ret;



	ret = mlx5i_get_port_settings(netdev, &ib_link_width_oper, &ib_proto_oper);

	if (ret)

		return ret;



	ethtool_link_ksettings_zero_link_mode(link_ksettings, supported);

	ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);



	speed = mlx5i_get_speed_settings(ib_link_width_oper, ib_proto_oper);

	if (speed < 0)

		return -EINVAL;



	link_ksettings->base.duplex = DUPLEX_FULL;

	link_ksettings->base.port = PORT_OTHER;



	link_ksettings->base.autoneg = AUTONEG_DISABLE;



	link_ksettings->base.speed = speed;



	return 0;

}



const struct ethtool_ops mlx5i_ethtool_ops = {

	.get_drvinfo        = mlx5i_get_drvinfo,

	.get_strings        = mlx5i_get_strings,
@@ -144,4 +248,6 @@ const struct ethtool_ops mlx5i_ethtool_ops = { 
	.get_coalesce       = mlx5i_get_coalesce,

	.set_coalesce       = mlx5i_set_coalesce,

	.get_ts_info        = mlx5i_get_ts_info,

	.get_link_ksettings = mlx5i_get_link_ksettings,

	.get_link           = ethtool_op_get_link,

};