diff options
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_ethtool.c | 17 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 15 | ||||
| -rw-r--r-- | net/core/ethtool.c | 13 |
3 files changed, 24 insertions, 21 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c index bf1f04164885..ebc1f566a4d9 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c @@ -1094,12 +1094,21 @@ static int mlx4_en_set_ringparam(struct net_device *dev, if (param->rx_jumbo_pending || param->rx_mini_pending) return -EINVAL; + if (param->rx_pending < MLX4_EN_MIN_RX_SIZE) { + en_warn(priv, "%s: rx_pending (%d) < min (%d)\n", + __func__, param->rx_pending, + MLX4_EN_MIN_RX_SIZE); + return -EINVAL; + } + if (param->tx_pending < MLX4_EN_MIN_TX_SIZE) { + en_warn(priv, "%s: tx_pending (%d) < min (%lu)\n", + __func__, param->tx_pending, + MLX4_EN_MIN_TX_SIZE); + return -EINVAL; + } + rx_size = roundup_pow_of_two(param->rx_pending); - rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE); - rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE); tx_size = roundup_pow_of_two(param->tx_pending); - tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE); - tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE); if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size) && diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c index 8f05efa5c829..1554780d1810 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -296,7 +296,6 @@ int mlx5e_ethtool_set_ringparam(struct mlx5e_priv *priv, struct mlx5e_channels new_channels = {}; u32 rx_pending_wqes; u32 min_rq_size; - u32 max_rq_size; u8 log_rq_size; u8 log_sq_size; u32 num_mtts; @@ -315,8 +314,6 @@ int mlx5e_ethtool_set_ringparam(struct mlx5e_priv *priv, min_rq_size = mlx5e_rx_wqes_to_packets(priv, rq_wq_type, 1 << mlx5_min_log_rq_size(rq_wq_type)); - max_rq_size = mlx5e_rx_wqes_to_packets(priv, rq_wq_type, - 1 << mlx5_max_log_rq_size(rq_wq_type)); rx_pending_wqes = mlx5e_packets_to_rx_wqes(priv, rq_wq_type, param->rx_pending); @@ -326,12 +323,6 @@ int mlx5e_ethtool_set_ringparam(struct mlx5e_priv *priv, min_rq_size); return -EINVAL; } - if (param->rx_pending > max_rq_size) { - netdev_info(priv->netdev, "%s: rx_pending (%d) > max (%d)\n", - __func__, param->rx_pending, - max_rq_size); - return -EINVAL; - } num_mtts = MLX5E_REQUIRED_MTTS(rx_pending_wqes); if (priv->channels.params.rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ && @@ -347,12 +338,6 @@ int mlx5e_ethtool_set_ringparam(struct mlx5e_priv *priv, 1 << MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE); return -EINVAL; } - if (param->tx_pending > (1 << MLX5E_PARAMS_MAXIMUM_LOG_SQ_SIZE)) { - netdev_info(priv->netdev, "%s: tx_pending (%d) > max (%d)\n", - __func__, param->tx_pending, - 1 << MLX5E_PARAMS_MAXIMUM_LOG_SQ_SIZE); - return -EINVAL; - } log_rq_size = order_base_2(rx_pending_wqes); log_sq_size = order_base_2(param->tx_pending); diff --git a/net/core/ethtool.c b/net/core/ethtool.c index fff6314f4c5e..107b122c8969 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -1693,14 +1693,23 @@ static int ethtool_get_ringparam(struct net_device *dev, void __user *useraddr) static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr) { - struct ethtool_ringparam ringparam; + struct ethtool_ringparam ringparam, max = { .cmd = ETHTOOL_GRINGPARAM }; - if (!dev->ethtool_ops->set_ringparam) + if (!dev->ethtool_ops->set_ringparam || !dev->ethtool_ops->get_ringparam) return -EOPNOTSUPP; if (copy_from_user(&ringparam, useraddr, sizeof(ringparam))) return -EFAULT; + dev->ethtool_ops->get_ringparam(dev, &max); + + /* ensure new ring parameters are within the maximums */ + if (ringparam.rx_pending > max.rx_max_pending || + ringparam.rx_mini_pending > max.rx_mini_max_pending || + ringparam.rx_jumbo_pending > max.rx_jumbo_max_pending || + ringparam.tx_pending > max.tx_max_pending) + return -EINVAL; + return dev->ethtool_ops->set_ringparam(dev, &ringparam); } |