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| author | Tariq Toukan | 2016-11-30 16:59:39 +0100 |
|---|---|---|
| committer | David S. Miller | 2016-12-02 16:47:02 +0100 |
| commit | ec8b9981ad3f3eeb5dcc4f237266e897c363f896 (patch) | |
| tree | 75467d96f499f53f5468e81d62bce103963dab87 /drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | |
| parent | net/mlx5e: Move function mlx5e_create_umr_mkey (diff) | |
| download | kernel-qcow2-linux-ec8b9981ad3f3eeb5dcc4f237266e897c363f896.tar.gz kernel-qcow2-linux-ec8b9981ad3f3eeb5dcc4f237266e897c363f896.tar.xz kernel-qcow2-linux-ec8b9981ad3f3eeb5dcc4f237266e897c363f896.zip | |
net/mlx5e: Create UMR MKey per RQ
In Striding RQ implementation, we used a single UMR
(User-Mode Memory Registration) memory key for all RQs.
When the product of RQs number*size gets high, we hit a
limitation of u16 field size in FW.
Here we move to using a UMR memory key per RQ, so we can
scale to any number of rings, with the maximum buffer
size in each.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c index aa963d74e14d..352462af8d51 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -499,8 +499,7 @@ static int mlx5e_set_ringparam(struct net_device *dev, return -EINVAL; } - num_mtts = MLX5E_REQUIRED_MTTS(priv->params.num_channels, - rx_pending_wqes); + num_mtts = MLX5E_REQUIRED_MTTS(rx_pending_wqes); if (priv->params.rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ && !MLX5E_VALID_NUM_MTTS(num_mtts)) { netdev_info(dev, "%s: rx_pending (%d) request can't be satisfied, try to reduce.\n", @@ -565,7 +564,6 @@ static int mlx5e_set_channels(struct net_device *dev, unsigned int count = ch->combined_count; bool arfs_enabled; bool was_opened; - u32 num_mtts; int err = 0; if (!count) { @@ -584,14 +582,6 @@ static int mlx5e_set_channels(struct net_device *dev, return -EINVAL; } - num_mtts = MLX5E_REQUIRED_MTTS(count, BIT(priv->params.log_rq_size)); - if (priv->params.rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ && - !MLX5E_VALID_NUM_MTTS(num_mtts)) { - netdev_info(dev, "%s: rx count (%d) request can't be satisfied, try to reduce.\n", - __func__, count); - return -EINVAL; - } - if (priv->params.num_channels == count) return 0; |