| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* Copyright(c) 2018 Intel Corporation. */ |
| |
| #ifndef _I40E_XSK_H_ |
| #define _I40E_XSK_H_ |
| |
| #include <linux/types.h> |
| |
| /* This value should match the pragma in the loop_unrolled_for |
| * macro. Why 4? It is strictly empirical. It seems to be a good |
| * compromise between the advantage of having simultaneous outstanding |
| * reads to the DMA array that can hide each others latency and the |
| * disadvantage of having a larger code path. |
| */ |
| #define PKTS_PER_BATCH 4 |
| |
| #ifdef __clang__ |
| #define loop_unrolled_for _Pragma("clang loop unroll_count(4)") for |
| #elif __GNUC__ >= 8 |
| #define loop_unrolled_for _Pragma("GCC unroll 4") for |
| #else |
| #define loop_unrolled_for for |
| #endif |
| |
| struct i40e_ring; |
| struct i40e_vsi; |
| struct net_device; |
| struct xsk_buff_pool; |
| |
| int i40e_queue_pair_disable(struct i40e_vsi *vsi, int queue_pair); |
| int i40e_queue_pair_enable(struct i40e_vsi *vsi, int queue_pair); |
| int i40e_xsk_pool_setup(struct i40e_vsi *vsi, struct xsk_buff_pool *pool, |
| u16 qid); |
| bool i40e_alloc_rx_buffers_zc(struct i40e_ring *rx_ring, u16 cleaned_count); |
| int i40e_clean_rx_irq_zc(struct i40e_ring *rx_ring, int budget); |
| |
| bool i40e_clean_xdp_tx_irq(struct i40e_vsi *vsi, struct i40e_ring *tx_ring); |
| int i40e_xsk_wakeup(struct net_device *dev, u32 queue_id, u32 flags); |
| int i40e_realloc_rx_bi_zc(struct i40e_vsi *vsi, bool zc); |
| void i40e_clear_rx_bi_zc(struct i40e_ring *rx_ring); |
| |
| #endif /* _I40E_XSK_H_ */ |
