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337e2f8681
So far no error is returned from a failing transmission. However it might sometimes be useful, and particularly easy to use during sync transfers (for certain MLME commands). Let's create an internal variable for that, global to the device. Right now only success are registered, which is rather useless, but soon we will have more situations filling this field. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Alexander Aring <aahringo@redhat.com> Link: https://lore.kernel.org/r/20220407100903.1695973-4-miquel.raynal@bootlin.com Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
100 lines
2.3 KiB
C
100 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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*
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* Authors:
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* Alexander Aring <aar@pengutronix.de>
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*
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* Based on: net/mac80211/util.c
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*/
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#include "ieee802154_i.h"
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#include "driver-ops.h"
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/* privid for wpan_phys to determine whether they belong to us or not */
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const void *const mac802154_wpan_phy_privid = &mac802154_wpan_phy_privid;
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void ieee802154_wake_queue(struct ieee802154_hw *hw)
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{
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struct ieee802154_local *local = hw_to_local(hw);
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struct ieee802154_sub_if_data *sdata;
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rcu_read_lock();
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list_for_each_entry_rcu(sdata, &local->interfaces, list) {
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if (!sdata->dev)
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continue;
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netif_wake_queue(sdata->dev);
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}
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rcu_read_unlock();
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}
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EXPORT_SYMBOL(ieee802154_wake_queue);
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void ieee802154_stop_queue(struct ieee802154_hw *hw)
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{
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struct ieee802154_local *local = hw_to_local(hw);
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struct ieee802154_sub_if_data *sdata;
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rcu_read_lock();
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list_for_each_entry_rcu(sdata, &local->interfaces, list) {
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if (!sdata->dev)
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continue;
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netif_stop_queue(sdata->dev);
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}
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rcu_read_unlock();
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}
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EXPORT_SYMBOL(ieee802154_stop_queue);
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enum hrtimer_restart ieee802154_xmit_ifs_timer(struct hrtimer *timer)
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{
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struct ieee802154_local *local =
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container_of(timer, struct ieee802154_local, ifs_timer);
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ieee802154_wake_queue(&local->hw);
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return HRTIMER_NORESTART;
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}
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void ieee802154_xmit_complete(struct ieee802154_hw *hw, struct sk_buff *skb,
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bool ifs_handling)
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{
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struct ieee802154_local *local = hw_to_local(hw);
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local->tx_result = IEEE802154_SUCCESS;
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if (ifs_handling) {
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u8 max_sifs_size;
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/* If transceiver sets CRC on his own we need to use lifs
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* threshold len above 16 otherwise 18, because it's not
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* part of skb->len.
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*/
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if (hw->flags & IEEE802154_HW_TX_OMIT_CKSUM)
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max_sifs_size = IEEE802154_MAX_SIFS_FRAME_SIZE -
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IEEE802154_FCS_LEN;
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else
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max_sifs_size = IEEE802154_MAX_SIFS_FRAME_SIZE;
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if (skb->len > max_sifs_size)
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hrtimer_start(&local->ifs_timer,
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hw->phy->lifs_period * NSEC_PER_USEC,
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HRTIMER_MODE_REL);
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else
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hrtimer_start(&local->ifs_timer,
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hw->phy->sifs_period * NSEC_PER_USEC,
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HRTIMER_MODE_REL);
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} else {
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ieee802154_wake_queue(hw);
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}
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dev_consume_skb_any(skb);
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}
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EXPORT_SYMBOL(ieee802154_xmit_complete);
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void ieee802154_stop_device(struct ieee802154_local *local)
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{
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flush_workqueue(local->workqueue);
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hrtimer_cancel(&local->ifs_timer);
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drv_stop(local);
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}
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