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116 lines
2.8 KiB
116 lines
2.8 KiB
// 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 <[email protected]> |
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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_xmit_error(struct ieee802154_hw *hw, struct sk_buff *skb, |
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int reason) |
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{ |
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struct ieee802154_local *local = hw_to_local(hw); |
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local->tx_result = reason; |
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ieee802154_wake_queue(hw); |
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dev_kfree_skb_any(skb); |
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} |
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EXPORT_SYMBOL(ieee802154_xmit_error); |
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void ieee802154_xmit_hw_error(struct ieee802154_hw *hw, struct sk_buff *skb) |
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{ |
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ieee802154_xmit_error(hw, skb, IEEE802154_SYSTEM_ERROR); |
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} |
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EXPORT_SYMBOL(ieee802154_xmit_hw_error); |
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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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