| 1 | /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ |
|---|---|
| 2 | /* Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */ |
| 3 | |
| 4 | #ifndef __MLX5_EN_SELQ_H__ |
| 5 | #define __MLX5_EN_SELQ_H__ |
| 6 | |
| 7 | #include <linux/kernel.h> |
| 8 | |
| 9 | struct mlx5e_selq_params; |
| 10 | |
| 11 | struct mlx5e_selq { |
| 12 | struct mlx5e_selq_params __rcu *active; |
| 13 | struct mlx5e_selq_params *standby; |
| 14 | struct mutex *state_lock; /* points to priv->state_lock */ |
| 15 | bool is_prepared; |
| 16 | }; |
| 17 | |
| 18 | struct mlx5e_params; |
| 19 | struct net_device; |
| 20 | struct sk_buff; |
| 21 | |
| 22 | int mlx5e_selq_init(struct mlx5e_selq *selq, struct mutex *state_lock); |
| 23 | void mlx5e_selq_cleanup(struct mlx5e_selq *selq); |
| 24 | void mlx5e_selq_prepare_params(struct mlx5e_selq *selq, struct mlx5e_params *params); |
| 25 | void mlx5e_selq_prepare_htb(struct mlx5e_selq *selq, u16 htb_maj_id, u16 htb_defcls); |
| 26 | bool mlx5e_selq_is_htb_enabled(struct mlx5e_selq *selq); |
| 27 | void mlx5e_selq_apply(struct mlx5e_selq *selq); |
| 28 | void mlx5e_selq_cancel(struct mlx5e_selq *selq); |
| 29 | |
| 30 | static inline u16 mlx5e_txq_to_ch_ix(u16 txq, u16 num_channels) |
| 31 | { |
| 32 | while (unlikely(txq >= num_channels)) |
| 33 | txq -= num_channels; |
| 34 | return txq; |
| 35 | } |
| 36 | |
| 37 | static inline u16 mlx5e_txq_to_ch_ix_htb(u16 txq, u16 num_channels) |
| 38 | { |
| 39 | if (unlikely(txq >= num_channels)) { |
| 40 | if (unlikely(txq >= num_channels << 3)) |
| 41 | txq %= num_channels; |
| 42 | else |
| 43 | do |
| 44 | txq -= num_channels; |
| 45 | while (txq >= num_channels); |
| 46 | } |
| 47 | return txq; |
| 48 | } |
| 49 | |
| 50 | u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb, |
| 51 | struct net_device *sb_dev); |
| 52 | |
| 53 | #endif /* __MLX5_EN_SELQ_H__ */ |
| 54 |