1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Queue between the tx operation and the bh workqueue.
 4 *
 5 * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
 6 * Copyright (c) 2010, ST-Ericsson
 7 */
 8#ifndef WFX_QUEUE_H
 9#define WFX_QUEUE_H
10
11#include <linux/skbuff.h>
12#include <linux/atomic.h>
13
14struct wfx_dev;
15struct wfx_vif;
16
17struct wfx_queue {
18	struct sk_buff_head normal;
19	struct sk_buff_head cab; /* Content After (DTIM) Beacon */
20	atomic_t            pending_frames;
21	int                 priority;
22};
23
24void wfx_tx_lock(struct wfx_dev *wdev);
25void wfx_tx_unlock(struct wfx_dev *wdev);
26void wfx_tx_flush(struct wfx_dev *wdev);
27void wfx_tx_lock_flush(struct wfx_dev *wdev);
28
29void wfx_tx_queues_init(struct wfx_vif *wvif);
30void wfx_tx_queues_check_empty(struct wfx_vif *wvif);
31bool wfx_tx_queues_has_cab(struct wfx_vif *wvif);
32void wfx_tx_queues_put(struct wfx_vif *wvif, struct sk_buff *skb);
33struct wfx_hif_msg *wfx_tx_queues_get(struct wfx_dev *wdev);
34
35bool wfx_tx_queue_empty(struct wfx_vif *wvif, struct wfx_queue *queue);
36void wfx_tx_queue_drop(struct wfx_vif *wvif, struct wfx_queue *queue,
37		       struct sk_buff_head *dropped);
38
39struct sk_buff *wfx_pending_get(struct wfx_dev *wdev, u32 packet_id);
40void wfx_pending_drop(struct wfx_dev *wdev, struct sk_buff_head *dropped);
41unsigned int wfx_pending_get_pkt_us_delay(struct wfx_dev *wdev, struct sk_buff *skb);
42void wfx_pending_dump_old_frames(struct wfx_dev *wdev, unsigned int limit_ms);
43
44#endif