diff options
| author |   Tariq Toukan <tariqt@mellanox.com> | 2018-02-11 15:21:33 +0200 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@mellanox.com> | 2018-03-30 16:16:17 -0700 |
| commit | 73281b78a37a1a3f392fd5b6116d04e597484529 (patch) | |
| tree | 723a3c3ca78b72e8b67c8e9408a66afffd462064 /drivers/net/ethernet/mellanox/mlx5/core/ipoib | |
| parent | net/mlx5e: Save MTU in channels params (diff) | |
| download | linux-dev-73281b78a37a1a3f392fd5b6116d04e597484529.tar.xz linux-dev-73281b78a37a1a3f392fd5b6116d04e597484529.zip | |
net/mlx5e: Derive Striding RQ size from MTU
In Striding RQ, each WQE serves multiple packets
(hence called Multi-Packet WQE, MPWQE).
The size of a MPWQE is constant (currently 256KB).
Upon a ringparam set operation, we calculate the number of
MPWQEs per RQ. For this, first it is needed to determine the
number of packets that can reside within a single MPWQE.
In this patch we use the actual MTU size instead of ETH_DATA_LEN
for this calculation.
This implies that a change in MTU might require a change
in Striding RQ ring size.
In addition, this obsoletes some WQEs-to-packets translation
functions and helps delete ~60 LOC.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/ipoib')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib_vlan.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c index dc5e9e706362..af3bb2f7a504 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c @@ -61,7 +61,7 @@ static void mlx5i_build_nic_params(struct mlx5_core_dev *mdev, mlx5e_init_rq_type_params(mdev, params); /* RQ size in ipoib by default is 512 */ - params->log_rq_size = is_kdump_kernel() ? + params->log_rq_mtu_frames = is_kdump_kernel() ? MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE : MLX5I_PARAMS_DEFAULT_LOG_RQ_SIZE; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib_vlan.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib_vlan.c index b69e9d847a6b..54a188f41f90 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib_vlan.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib_vlan.c @@ -290,7 +290,7 @@ static void mlx5i_pkey_init(struct mlx5_core_dev *mdev, netdev->ethtool_ops = &mlx5i_pkey_ethtool_ops; /* Use dummy rqs */ - priv->channels.params.log_rq_size = MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE; + priv->channels.params.log_rq_mtu_frames = MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE; } /* Called directly before IPoIB netdevice is destroyed to cleanup SW structs */ |