linux/drivers/net/wireless/st/cw1200/queue.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * O(1) TX queue with built-in allocator for ST-Ericsson CW1200 drivers
 *
 * Copyright (c) 2010, ST-Ericsson
 * Author: Dmitry Tarnyagin <[email protected]>
 */

#include <net/mac80211.h>
#include <linux/sched.h>
#include <linux/jiffies.h>
#include "queue.h"
#include "cw1200.h"
#include "debug.h"

/* private */ struct cw1200_queue_item
{ … };

static inline void __cw1200_queue_lock(struct cw1200_queue *queue)
{ … }

static inline void __cw1200_queue_unlock(struct cw1200_queue *queue)
{ … }

static inline void cw1200_queue_parse_id(u32 packet_id, u8 *queue_generation,
					 u8 *queue_id, u8 *item_generation,
					 u8 *item_id)
{ … }

static inline u32 cw1200_queue_mk_packet_id(u8 queue_generation, u8 queue_id,
					    u8 item_generation, u8 item_id)
{ … }

static void cw1200_queue_post_gc(struct cw1200_queue_stats *stats,
				 struct list_head *gc_list)
{ … }

static void cw1200_queue_register_post_gc(struct list_head *gc_list,
					  struct cw1200_queue_item *item)
{ … }

static void __cw1200_queue_gc(struct cw1200_queue *queue,
			      struct list_head *head,
			      bool unlock)
{ … }

static void cw1200_queue_gc(struct timer_list *t)
{ … }

int cw1200_queue_stats_init(struct cw1200_queue_stats *stats,
			    size_t map_capacity,
			    cw1200_queue_skb_dtor_t skb_dtor,
			    struct cw1200_common *priv)
{ … }

int cw1200_queue_init(struct cw1200_queue *queue,
		      struct cw1200_queue_stats *stats,
		      u8 queue_id,
		      size_t capacity,
		      unsigned long ttl)
{ … }

int cw1200_queue_clear(struct cw1200_queue *queue)
{ … }

void cw1200_queue_stats_deinit(struct cw1200_queue_stats *stats)
{ … }

void cw1200_queue_deinit(struct cw1200_queue *queue)
{ … }

size_t cw1200_queue_get_num_queued(struct cw1200_queue *queue,
				   u32 link_id_map)
{ … }

int cw1200_queue_put(struct cw1200_queue *queue,
		     struct sk_buff *skb,
		     struct cw1200_txpriv *txpriv)
{ … }

int cw1200_queue_get(struct cw1200_queue *queue,
		     u32 link_id_map,
		     struct wsm_tx **tx,
		     struct ieee80211_tx_info **tx_info,
		     const struct cw1200_txpriv **txpriv)
{ … }

int cw1200_queue_requeue(struct cw1200_queue *queue, u32 packet_id)
{ … }

int cw1200_queue_requeue_all(struct cw1200_queue *queue)
{ … }

int cw1200_queue_remove(struct cw1200_queue *queue, u32 packet_id)
{ … }

int cw1200_queue_get_skb(struct cw1200_queue *queue, u32 packet_id,
			 struct sk_buff **skb,
			 const struct cw1200_txpriv **txpriv)
{ … }

void cw1200_queue_lock(struct cw1200_queue *queue)
{ … }

void cw1200_queue_unlock(struct cw1200_queue *queue)
{ … }

bool cw1200_queue_get_xmit_timestamp(struct cw1200_queue *queue,
				     unsigned long *timestamp,
				     u32 pending_frame_id)
{ … }

bool cw1200_queue_stats_is_empty(struct cw1200_queue_stats *stats,
				 u32 link_id_map)
{ … }