silabs/wfx/queue.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /*
0003  * Queue between the tx operation and the bh workqueue.
0004  *
0005  * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
0006  * Copyright (c) 2010, ST-Ericsson
0007  */
0008 #ifndef WFX_QUEUE_H
0009 #define WFX_QUEUE_H
0010
0011 #include <linux/skbuff.h>
0012 #include <linux/atomic.h>
0013
0014 struct wfx_dev;
0015 struct wfx_vif;
0016
0017 struct wfx_queue {
0018     struct sk_buff_head normal;
0019     struct sk_buff_head cab; /* Content After (DTIM) Beacon */
0020     atomic_t            pending_frames;
0021     int                 priority;
0022 };
0023
0024 void wfx_tx_lock(struct wfx_dev *wdev);
0025 void wfx_tx_unlock(struct wfx_dev *wdev);
0026 void wfx_tx_flush(struct wfx_dev *wdev);
0027 void wfx_tx_lock_flush(struct wfx_dev *wdev);
0028
0029 void wfx_tx_queues_init(struct wfx_vif *wvif);
0030 void wfx_tx_queues_check_empty(struct wfx_vif *wvif);
0031 bool wfx_tx_queues_has_cab(struct wfx_vif *wvif);
0032 void wfx_tx_queues_put(struct wfx_vif *wvif, struct sk_buff *skb);
0033 struct wfx_hif_msg *wfx_tx_queues_get(struct wfx_dev *wdev);
0034
0035 bool wfx_tx_queue_empty(struct wfx_vif *wvif, struct wfx_queue *queue);
0036 void wfx_tx_queue_drop(struct wfx_vif *wvif, struct wfx_queue *queue,
0037                struct sk_buff_head *dropped);
0038
0039 struct sk_buff *wfx_pending_get(struct wfx_dev *wdev, u32 packet_id);
0040 void wfx_pending_drop(struct wfx_dev *wdev, struct sk_buff_head *dropped);
0041 unsigned int wfx_pending_get_pkt_us_delay(struct wfx_dev *wdev, struct sk_buff *skb);
0042 void wfx_pending_dump_old_frames(struct wfx_dev *wdev, unsigned int limit_ms);
0043
0044 #endif