mirror of
https://github.com/brain-hackers/linux-brain.git
synced 2024-06-09 23:36:23 +09:00
1802d0beec
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
97 lines
2.3 KiB
C
97 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
*
|
|
* Authors:
|
|
* Alexander Aring <aar@pengutronix.de>
|
|
*
|
|
* Based on: net/mac80211/util.c
|
|
*/
|
|
|
|
#include "ieee802154_i.h"
|
|
#include "driver-ops.h"
|
|
|
|
/* privid for wpan_phys to determine whether they belong to us or not */
|
|
const void *const mac802154_wpan_phy_privid = &mac802154_wpan_phy_privid;
|
|
|
|
void ieee802154_wake_queue(struct ieee802154_hw *hw)
|
|
{
|
|
struct ieee802154_local *local = hw_to_local(hw);
|
|
struct ieee802154_sub_if_data *sdata;
|
|
|
|
rcu_read_lock();
|
|
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
|
|
if (!sdata->dev)
|
|
continue;
|
|
|
|
netif_wake_queue(sdata->dev);
|
|
}
|
|
rcu_read_unlock();
|
|
}
|
|
EXPORT_SYMBOL(ieee802154_wake_queue);
|
|
|
|
void ieee802154_stop_queue(struct ieee802154_hw *hw)
|
|
{
|
|
struct ieee802154_local *local = hw_to_local(hw);
|
|
struct ieee802154_sub_if_data *sdata;
|
|
|
|
rcu_read_lock();
|
|
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
|
|
if (!sdata->dev)
|
|
continue;
|
|
|
|
netif_stop_queue(sdata->dev);
|
|
}
|
|
rcu_read_unlock();
|
|
}
|
|
EXPORT_SYMBOL(ieee802154_stop_queue);
|
|
|
|
enum hrtimer_restart ieee802154_xmit_ifs_timer(struct hrtimer *timer)
|
|
{
|
|
struct ieee802154_local *local =
|
|
container_of(timer, struct ieee802154_local, ifs_timer);
|
|
|
|
ieee802154_wake_queue(&local->hw);
|
|
|
|
return HRTIMER_NORESTART;
|
|
}
|
|
|
|
void ieee802154_xmit_complete(struct ieee802154_hw *hw, struct sk_buff *skb,
|
|
bool ifs_handling)
|
|
{
|
|
if (ifs_handling) {
|
|
struct ieee802154_local *local = hw_to_local(hw);
|
|
u8 max_sifs_size;
|
|
|
|
/* If transceiver sets CRC on his own we need to use lifs
|
|
* threshold len above 16 otherwise 18, because it's not
|
|
* part of skb->len.
|
|
*/
|
|
if (hw->flags & IEEE802154_HW_TX_OMIT_CKSUM)
|
|
max_sifs_size = IEEE802154_MAX_SIFS_FRAME_SIZE -
|
|
IEEE802154_FCS_LEN;
|
|
else
|
|
max_sifs_size = IEEE802154_MAX_SIFS_FRAME_SIZE;
|
|
|
|
if (skb->len > max_sifs_size)
|
|
hrtimer_start(&local->ifs_timer,
|
|
hw->phy->lifs_period * NSEC_PER_USEC,
|
|
HRTIMER_MODE_REL);
|
|
else
|
|
hrtimer_start(&local->ifs_timer,
|
|
hw->phy->sifs_period * NSEC_PER_USEC,
|
|
HRTIMER_MODE_REL);
|
|
} else {
|
|
ieee802154_wake_queue(hw);
|
|
}
|
|
|
|
dev_consume_skb_any(skb);
|
|
}
|
|
EXPORT_SYMBOL(ieee802154_xmit_complete);
|
|
|
|
void ieee802154_stop_device(struct ieee802154_local *local)
|
|
{
|
|
flush_workqueue(local->workqueue);
|
|
hrtimer_cancel(&local->ifs_timer);
|
|
drv_stop(local);
|
|
}
|