10a714186SBjörn Töpel /* SPDX-License-Identifier: GPL-2.0 */ 20a714186SBjörn Töpel /* Copyright(c) 2018 Intel Corporation. */ 30a714186SBjörn Töpel 40a714186SBjörn Töpel #ifndef _I40E_XSK_H_ 50a714186SBjörn Töpel #define _I40E_XSK_H_ 60a714186SBjörn Töpel 7*e77220eeSIvan Vecera #include <linux/types.h> 8*e77220eeSIvan Vecera 93106c580SMagnus Karlsson /* This value should match the pragma in the loop_unrolled_for 103106c580SMagnus Karlsson * macro. Why 4? It is strictly empirical. It seems to be a good 113106c580SMagnus Karlsson * compromise between the advantage of having simultaneous outstanding 123106c580SMagnus Karlsson * reads to the DMA array that can hide each others latency and the 133106c580SMagnus Karlsson * disadvantage of having a larger code path. 143106c580SMagnus Karlsson */ 153106c580SMagnus Karlsson #define PKTS_PER_BATCH 4 163106c580SMagnus Karlsson 173106c580SMagnus Karlsson #ifdef __clang__ 183106c580SMagnus Karlsson #define loop_unrolled_for _Pragma("clang loop unroll_count(4)") for 193106c580SMagnus Karlsson #elif __GNUC__ >= 8 203106c580SMagnus Karlsson #define loop_unrolled_for _Pragma("GCC unroll 4") for 213106c580SMagnus Karlsson #else 223106c580SMagnus Karlsson #define loop_unrolled_for for 233106c580SMagnus Karlsson #endif 243106c580SMagnus Karlsson 25*e77220eeSIvan Vecera struct i40e_ring; 260a714186SBjörn Töpel struct i40e_vsi; 27*e77220eeSIvan Vecera struct net_device; 281742b3d5SMagnus Karlsson struct xsk_buff_pool; 290a714186SBjörn Töpel 300a714186SBjörn Töpel int i40e_queue_pair_disable(struct i40e_vsi *vsi, int queue_pair); 310a714186SBjörn Töpel int i40e_queue_pair_enable(struct i40e_vsi *vsi, int queue_pair); 321742b3d5SMagnus Karlsson int i40e_xsk_pool_setup(struct i40e_vsi *vsi, struct xsk_buff_pool *pool, 330a714186SBjörn Töpel u16 qid); 340a714186SBjörn Töpel bool i40e_alloc_rx_buffers_zc(struct i40e_ring *rx_ring, u16 cleaned_count); 350a714186SBjörn Töpel int i40e_clean_rx_irq_zc(struct i40e_ring *rx_ring, int budget); 360a714186SBjörn Töpel 375574ff7bSMagnus Karlsson bool i40e_clean_xdp_tx_irq(struct i40e_vsi *vsi, struct i40e_ring *tx_ring); 389116e5e2SMagnus Karlsson int i40e_xsk_wakeup(struct net_device *dev, u32 queue_id, u32 flags); 39aae425efSJan Sokolowski int i40e_realloc_rx_bi_zc(struct i40e_vsi *vsi, bool zc); 40be1222b5SBjörn Töpel void i40e_clear_rx_bi_zc(struct i40e_ring *rx_ring); 411328dcddSMagnus Karlsson 420a714186SBjörn Töpel #endif /* _I40E_XSK_H_ */ 43