diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en/selq.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/selq.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/selq.h b/drivers/net/ethernet/mellanox/mlx5/core/en/selq.h new file mode 100644 index 000000000000..fd590f80e4d1 --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/selq.h @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ +/* Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */ + +#ifndef __MLX5_EN_SELQ_H__ +#define __MLX5_EN_SELQ_H__ + +#include <linux/kernel.h> + +struct mlx5e_selq_params; + +struct mlx5e_selq { + struct mlx5e_selq_params __rcu *active; + struct mlx5e_selq_params *standby; + struct mutex *state_lock; /* points to priv->state_lock */ + bool is_prepared; +}; + +struct mlx5e_params; +struct net_device; +struct sk_buff; + +int mlx5e_selq_init(struct mlx5e_selq *selq, struct mutex *state_lock); +void mlx5e_selq_cleanup(struct mlx5e_selq *selq); +void mlx5e_selq_prepare_params(struct mlx5e_selq *selq, struct mlx5e_params *params); +void mlx5e_selq_prepare_htb(struct mlx5e_selq *selq, u16 htb_maj_id, u16 htb_defcls); +bool mlx5e_selq_is_htb_enabled(struct mlx5e_selq *selq); +void mlx5e_selq_apply(struct mlx5e_selq *selq); +void mlx5e_selq_cancel(struct mlx5e_selq *selq); + +static inline u16 mlx5e_txq_to_ch_ix(u16 txq, u16 num_channels) +{ + while (unlikely(txq >= num_channels)) + txq -= num_channels; + return txq; +} + +static inline u16 mlx5e_txq_to_ch_ix_htb(u16 txq, u16 num_channels) +{ + if (unlikely(txq >= num_channels)) { + if (unlikely(txq >= num_channels << 3)) + txq %= num_channels; + else + do + txq -= num_channels; + while (txq >= num_channels); + } + return txq; +} + +u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb, + struct net_device *sb_dev); + +#endif /* __MLX5_EN_SELQ_H__ */ |