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	struct sk_buff_head offchan;
21	atomic_t            pending_frames;
22	int                 priority;
23};
24
25void wfx_tx_lock(struct wfx_dev *wdev);
26void wfx_tx_unlock(struct wfx_dev *wdev);
27void wfx_tx_flush(struct wfx_dev *wdev);
28void wfx_tx_lock_flush(struct wfx_dev *wdev);
29
30void wfx_tx_queues_init(struct wfx_vif *wvif);
31void wfx_tx_queues_check_empty(struct wfx_vif *wvif);
32bool wfx_tx_queues_has_cab(struct wfx_vif *wvif);
33void wfx_tx_queues_put(struct wfx_vif *wvif, struct sk_buff *skb);
34struct wfx_hif_msg *wfx_tx_queues_get(struct wfx_dev *wdev);
35
36bool wfx_tx_queue_empty(struct wfx_vif *wvif, struct wfx_queue *queue);
37void wfx_tx_queue_drop(struct wfx_vif *wvif, struct wfx_queue *queue,
38		       struct sk_buff_head *dropped);
39
40struct sk_buff *wfx_pending_get(struct wfx_dev *wdev, u32 packet_id);
41void wfx_pending_drop(struct wfx_dev *wdev, struct sk_buff_head *dropped);
42unsigned int wfx_pending_get_pkt_us_delay(struct wfx_dev *wdev, struct sk_buff *skb);
43void wfx_pending_dump_old_frames(struct wfx_dev *wdev, unsigned int limit_ms);
44
45#endif
46