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| author | Maxim Mikityanskiy <maximmi@nvidia.com> | 2022-01-31 18:41:31 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2022-03-18 23:51:14 +0300 |
| commit | 9ded70fa1d8186135090f09638db7d8126dca0db (patch) | |
| tree | cf3e111333b27a69213572dd91365202532d352e /drivers/net/ethernet/mellanox/mlx5/core/en/params.c | |
| parent | c090451633f89c292316e928f970d082d7e8295f (diff) | |
| download | linux-9ded70fa1d8186135090f09638db7d8126dca0db.tar.xz | |
net/mlx5e: Don't prefill WQEs in XDP SQ in the multi buffer mode
When MPWQE is disabled, mlx5e_open_xdpsq() prefills the common fields of
WQEs in the XDP SQ to save time when sending packets.
mlx5e_xmit_xdp_frame() runs on the prefilled fields, however, sending
multi buffer XDP frames would require changing some of these fields on a
per-packet basis. Besides that, mlx5e_xmit_xdp_frame() will be used as a
fallback to send multi buffer XDP frames when MPWQE is enabled (MPWQE
can only handle linear packets).
In order to prepare for XDP multi buffer support, this commit introduces
a mode for mlx5e_xmit_xdp_frame() that fills all the fields itself.
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en/params.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/params.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/params.c b/drivers/net/ethernet/mellanox/mlx5/core/en/params.c index 9646867872c1..08fd1370a8b0 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/params.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/params.c @@ -843,6 +843,7 @@ static void mlx5e_build_async_icosq_param(struct mlx5_core_dev *mdev, void mlx5e_build_xdpsq_param(struct mlx5_core_dev *mdev, struct mlx5e_params *params, + struct mlx5e_xsk_param *xsk, struct mlx5e_sq_param *param) { void *sqc = param->sqc; @@ -851,6 +852,7 @@ void mlx5e_build_xdpsq_param(struct mlx5_core_dev *mdev, mlx5e_build_sq_param_common(mdev, param); MLX5_SET(wq, wq, log_wq_sz, params->log_sq_size); param->is_mpw = MLX5E_GET_PFLAG(params, MLX5E_PFLAG_XDP_TX_MPWQE); + param->is_xdp_mb = !mlx5e_rx_is_linear_skb(params, xsk); mlx5e_build_tx_cq_param(mdev, params, ¶m->cqp); } @@ -870,7 +872,7 @@ int mlx5e_build_channel_param(struct mlx5_core_dev *mdev, async_icosq_log_wq_sz = mlx5e_build_async_icosq_log_wq_sz(mdev); mlx5e_build_sq_param(mdev, params, &cparam->txq_sq); - mlx5e_build_xdpsq_param(mdev, params, &cparam->xdp_sq); + mlx5e_build_xdpsq_param(mdev, params, NULL, &cparam->xdp_sq); mlx5e_build_icosq_param(mdev, icosq_log_wq_sz, &cparam->icosq); mlx5e_build_async_icosq_param(mdev, async_icosq_log_wq_sz, &cparam->async_icosq); |