tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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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 unrolled_count()
10 * macro. Why 4? It is strictly empirical. It seems to be a good
11 * compromise between the advantage of having simultaneous outstanding
12 * reads to the DMA array that can hide each others latency and the
13 * disadvantage of having a larger code path.
14 */
15#define PKTS_PER_BATCH 4
16
17struct i40e_ring;
18struct i40e_vsi;
19struct net_device;
20struct xsk_buff_pool;
21
22int i40e_queue_pair_disable(struct i40e_vsi *vsi, int queue_pair);
23int i40e_queue_pair_enable(struct i40e_vsi *vsi, int queue_pair);
24int i40e_xsk_pool_setup(struct i40e_vsi *vsi, struct xsk_buff_pool *pool,
25 u16 qid);
26bool i40e_alloc_rx_buffers_zc(struct i40e_ring *rx_ring, u16 cleaned_count);
27int i40e_clean_rx_irq_zc(struct i40e_ring *rx_ring, int budget);
28
29bool i40e_clean_xdp_tx_irq(struct i40e_vsi *vsi, struct i40e_ring *tx_ring);
30int i40e_xsk_wakeup(struct net_device *dev, u32 queue_id, u32 flags);
31int i40e_realloc_rx_bi_zc(struct i40e_vsi *vsi, bool zc);
32void i40e_clear_rx_bi_zc(struct i40e_ring *rx_ring);
33
34#endif /* _I40E_XSK_H_ */