/* SPDX-License-Identifier: GPL-2.0-only *//* * O(1) TX queue with built-in allocator. * * Copyright (c) 2017-2020, Silicon Laboratories, Inc. * Copyright (c) 2010, ST-Ericsson */#ifndef WFX_QUEUE_H#define WFX_QUEUE_H #include <linux/skbuff.h>#include <linux/atomic.h> struct wfx_dev;struct wfx_vif; struct wfx_queue {	struct sk_buff_head	normal;	struct sk_buff_head	cab; // Content After (DTIM) Beacon	atomic_t		pending_frames;	int			priority;}; void wfx_tx_lock(struct wfx_dev *wdev);void wfx_tx_unlock(struct wfx_dev *wdev);void wfx_tx_flush(struct wfx_dev *wdev);void wfx_tx_lock_flush(struct wfx_dev *wdev); void wfx_tx_queues_init(struct wfx_vif *wvif);void wfx_tx_queues_check_empty(struct wfx_vif *wvif);bool wfx_tx_queues_has_cab(struct wfx_vif *wvif);void wfx_tx_queues_put(struct wfx_vif *wvif, struct sk_buff *skb);struct hif_msg *wfx_tx_queues_get(struct wfx_dev *wdev); bool wfx_tx_queue_empty(struct wfx_vif *wvif, struct wfx_queue *queue);void wfx_tx_queue_drop(struct wfx_vif *wvif, struct wfx_queue *queue,		       struct sk_buff_head *dropped); struct sk_buff *wfx_pending_get(struct wfx_dev *wdev, u32 packet_id);void wfx_pending_drop(struct wfx_dev *wdev, struct sk_buff_head *dropped);unsigned int wfx_pending_get_pkt_us_delay(struct wfx_dev *wdev,					  struct sk_buff *skb);void wfx_pending_dump_old_frames(struct wfx_dev *wdev, unsigned int limit_ms); #endif /* WFX_QUEUE_H */