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1/* SPDX-License-Identifier: GPL-2.0 */2/* Copyright(c) 2018 Intel Corporation. */3 4#ifndef _I40E_XSK_H_5#define _I40E_XSK_H_6 7#include <linux/types.h>8 9/* This value should match the pragma in the loop_unrolled_for10 * macro. Why 4? It is strictly empirical. It seems to be a good11 * compromise between the advantage of having simultaneous outstanding12 * reads to the DMA array that can hide each others latency and the13 * disadvantage of having a larger code path.14 */15#define PKTS_PER_BATCH 416 17#ifdef __clang__18#define loop_unrolled_for _Pragma("clang loop unroll_count(4)") for19#elif __GNUC__ >= 820#define loop_unrolled_for _Pragma("GCC unroll 4") for21#else22#define loop_unrolled_for for23#endif24 25struct i40e_ring;26struct i40e_vsi;27struct net_device;28struct xsk_buff_pool;29 30int i40e_queue_pair_disable(struct i40e_vsi *vsi, int queue_pair);31int i40e_queue_pair_enable(struct i40e_vsi *vsi, int queue_pair);32int i40e_xsk_pool_setup(struct i40e_vsi *vsi, struct xsk_buff_pool *pool,33 u16 qid);34bool i40e_alloc_rx_buffers_zc(struct i40e_ring *rx_ring, u16 cleaned_count);35int i40e_clean_rx_irq_zc(struct i40e_ring *rx_ring, int budget);36 37bool i40e_clean_xdp_tx_irq(struct i40e_vsi *vsi, struct i40e_ring *tx_ring);38int i40e_xsk_wakeup(struct net_device *dev, u32 queue_id, u32 flags);39int i40e_realloc_rx_bi_zc(struct i40e_vsi *vsi, bool zc);40void i40e_clear_rx_bi_zc(struct i40e_ring *rx_ring);41 42#endif /* _I40E_XSK_H_ */43