net/mlx5e: ethtool, Fix analysis of speed setting

[ Upstream commit 3d7cadae51f1b7f28358e36d0a1ce3f0ae2eee60 ]

When setting speed to 100G via ethtool (AN is set to off), only 25G*4 is
configured while the user, who has an advanced HW which supports
extended PTYS, expects also 50G*2 to be configured.
With this patch, when extended PTYS mode is available, configure
PTYS via extended fields.

Fixes: 4b95840a6ced ("net/mlx5e: Fix matching of speed to PRM link modes")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index d5d80be1a6c799c8ceceeaaa7e482e5fa2cc7137..c6776f308d5e60e7fe792ab464c4cfb14e81656f 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -1027,18 +1027,11 @@ static bool ext_link_mode_requested(const unsigned long *adver)
        return bitmap_intersects(modes, adver, __ETHTOOL_LINK_MODE_MASK_NBITS);
 }
 
-static bool ext_speed_requested(u32 speed)
-{
-#define MLX5E_MAX_PTYS_LEGACY_SPEED 100000
-       return !!(speed > MLX5E_MAX_PTYS_LEGACY_SPEED);
-}
-
-static bool ext_requested(u8 autoneg, const unsigned long *adver, u32 speed)
+static bool ext_requested(u8 autoneg, const unsigned long *adver, bool ext_supported)
 {
        bool ext_link_mode = ext_link_mode_requested(adver);
-       bool ext_speed = ext_speed_requested(speed);
 
-       return  autoneg == AUTONEG_ENABLE ? ext_link_mode : ext_speed;
+       return  autoneg == AUTONEG_ENABLE ? ext_link_mode : ext_supported;
 }
 
 int mlx5e_ethtool_set_link_ksettings(struct mlx5e_priv *priv,
@@ -1065,8 +1058,8 @@ int mlx5e_ethtool_set_link_ksettings(struct mlx5e_priv *priv,
        autoneg = link_ksettings->base.autoneg;
        speed = link_ksettings->base.speed;
 
-       ext = ext_requested(autoneg, adver, speed),
        ext_supported = MLX5_CAP_PCAM_FEATURE(mdev, ptys_extended_ethernet);
+       ext = ext_requested(autoneg, adver, ext_supported);
        if (!ext_supported && ext)
                return -EOPNOTSUPP;