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net/mlx5e: Fix ethtool rxfh commands when CONFIG_MLX5_EN_RXNFC is disabled

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[ Upstream commit 8f0916c6dc ]

ethtool user spaces needs to know ring count via ETHTOOL_GRXRINGS when
executing (ethtool -x) which is retrieved via ethtool get_rxnfc callback,
in mlx5 this callback is disabled when CONFIG_MLX5_EN_RXNFC=n.

This patch allows only ETHTOOL_GRXRINGS command on mlx5e_get_rxnfc() when
CONFIG_MLX5_EN_RXNFC is disabled, so ethtool -x will continue working.

Fixes: fe6d86b3c3 ("net/mlx5e: Add CONFIG_MLX5_EN_RXNFC for ethtool rx nfc")
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Saeed Mahameed 2019-05-07 12:59:38 -07:00 • committed by Greg Kroah-Hartman
commit b11efd3262
1 changed files with 17 additions and 1 deletions
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18
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
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@ -1609,6 +1609,22 @@ static int mlx5e_flash_device(struct net_device *dev,
return mlx5e_ethtool_flash_device(priv, flash);
}
#ifndef CONFIG_MLX5_EN_RXNFC
/* When CONFIG_MLX5_EN_RXNFC=n we only support ETHTOOL_GRXRINGS
* otherwise this function will be defined from en_fs_ethtool.c
*/
static int mlx5e_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info, u32 *rule_locs)
{
struct mlx5e_priv *priv = netdev_priv(dev);
if (info->cmd != ETHTOOL_GRXRINGS)
return -EOPNOTSUPP;
/* ring_count is needed by ethtool -x */
info->data = priv->channels.params.num_channels;
return 0;
}
#endif
const struct ethtool_ops mlx5e_ethtool_ops = {
.get_drvinfo = mlx5e_get_drvinfo,
.get_link = ethtool_op_get_link,
@ -1627,8 +1643,8 @@ const struct ethtool_ops mlx5e_ethtool_ops = {
.get_rxfh_indir_size = mlx5e_get_rxfh_indir_size,
.get_rxfh = mlx5e_get_rxfh,
.set_rxfh = mlx5e_set_rxfh,
#ifdef CONFIG_MLX5_EN_RXNFC
.get_rxnfc = mlx5e_get_rxnfc,
#ifdef CONFIG_MLX5_EN_RXNFC
.set_rxnfc = mlx5e_set_rxnfc,
#endif
.flash_device = mlx5e_flash_device,