linux/drivers/net/wireless/marvell/libertas/tx.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * This file contains the handling of TX in wlan driver.
 */
#include <linux/hardirq.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/sched.h>
#include <linux/export.h>
#include <net/cfg80211.h>

#include "host.h"
#include "radiotap.h"
#include "decl.h"
#include "defs.h"
#include "dev.h"
#include "mesh.h"

/**
 * convert_radiotap_rate_to_mv - converts Tx/Rx rates from IEEE80211_RADIOTAP_RATE
 * units (500 Kb/s) into Marvell WLAN format (see Table 8 in Section 3.2.1)
 *
 * @rate:	Input rate
 * returns:	Output Rate (0 if invalid)
 */
static u32 convert_radiotap_rate_to_mv(u8 rate)
{ … }

/**
 * lbs_hard_start_xmit - checks the conditions and sends packet to IF
 * layer if everything is ok
 *
 * @skb:	A pointer to skb which includes TX packet
 * @dev:	A pointer to the &struct net_device
 * returns:	0 or -1
 */
netdev_tx_t lbs_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
{ … }

/**
 * lbs_send_tx_feedback - sends to the host the last transmitted packet,
 * filling the radiotap headers with transmission information.
 *
 * @priv:	A pointer to &struct lbs_private structure
 * @try_count:	A 32-bit value containing transmission retry status.
 *
 * returns:	void
 */
void lbs_send_tx_feedback(struct lbs_private *priv, u32 try_count)
{ … }
EXPORT_SYMBOL_GPL(…);