diff options
| author | Tariq Toukan <tariqt@mellanox.com> | 2018-02-11 16:21:33 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2018-03-31 02:16:17 +0300 |
| commit | 73281b78a37a1a3f392fd5b6116d04e597484529 (patch) | |
| tree | 723a3c3ca78b72e8b67c8e9408a66afffd462064 /drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | |
| parent | 472a1e44b3495df01c83e048667ef93dd2ea1ca0 (diff) | |
| download | linux-73281b78a37a1a3f392fd5b6116d04e597484529.tar.xz | |
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/en_rep.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c index cd884829cb30..8e70fa9ef39a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c @@ -880,7 +880,7 @@ static void mlx5e_build_rep_params(struct mlx5_core_dev *mdev, params->hard_mtu = MLX5E_ETH_HARD_MTU; params->log_sq_size = MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE; params->rq_wq_type = MLX5_WQ_TYPE_LINKED_LIST; - params->log_rq_size = MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE; + params->log_rq_mtu_frames = MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE; params->rx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation); mlx5e_set_rx_cq_mode_params(params, cq_period_mode); |