diff options
| author | Inbar Karmy <inbark@mellanox.com> | 2017-10-10 12:28:34 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-10-10 13:11:22 -0700 |
| commit | b8d394367a631c2d749b3114e04dfb4d09624ddf (patch) | |
| tree | da2c277a0934e8a19585282ee7e3c92a1c82466d | |
| parent | 7e1dc5e926d57a5bc4ac97d6e061e2fe29c266c0 (diff) | |
net/mlx4_en: Limit the number of RX rings
Limit the number of RX rings by the number of cores
in the system.
Signed-off-by: Inbar Karmy <inbark@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_ethtool.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c index e9432bc1c1bc..bf1f04164885 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c @@ -1742,12 +1742,17 @@ static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd) return err; } +static int mlx4_en_get_max_num_rx_rings(struct net_device *dev) +{ + return min_t(int, num_online_cpus(), MAX_RX_RINGS); +} + static void mlx4_en_get_channels(struct net_device *dev, struct ethtool_channels *channel) { struct mlx4_en_priv *priv = netdev_priv(dev); - channel->max_rx = MAX_RX_RINGS; + channel->max_rx = mlx4_en_get_max_num_rx_rings(dev); channel->max_tx = priv->mdev->profile.max_num_tx_rings_p_up; channel->rx_count = priv->rx_ring_num; |