diff options
Diffstat (limited to 'include/net/mac802154.h')
| -rw-r--r-- | include/net/mac802154.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/net/mac802154.h b/include/net/mac802154.h index d524ffb9eb25..bdac0ddbdcdb 100644 --- a/include/net/mac802154.h +++ b/include/net/mac802154.h @@ -464,6 +464,12 @@ void ieee802154_rx_irqsafe(struct ieee802154_hw *hw, struct sk_buff *skb, * ieee802154_wake_queue - wake ieee802154 queue * @hw: pointer as obtained from ieee802154_alloc_hw(). * + * Tranceivers usually have either one transmit framebuffer or one framebuffer + * for both transmitting and receiving. Hence, the core currently only handles + * one frame at a time for each phy, which means we had to stop the queue to + * avoid new skb to come during the transmission. The queue then needs to be + * woken up after the operation. + * * Drivers should use this function instead of netif_wake_queue. */ void ieee802154_wake_queue(struct ieee802154_hw *hw); @@ -472,6 +478,12 @@ void ieee802154_wake_queue(struct ieee802154_hw *hw); * ieee802154_stop_queue - stop ieee802154 queue * @hw: pointer as obtained from ieee802154_alloc_hw(). * + * Tranceivers usually have either one transmit framebuffer or one framebuffer + * for both transmitting and receiving. Hence, the core currently only handles + * one frame at a time for each phy, which means we need to tell upper layers to + * stop giving us new skbs while we are busy with the transmitted one. The queue + * must then be stopped before transmitting. + * * Drivers should use this function instead of netif_stop_queue. */ void ieee802154_stop_queue(struct ieee802154_hw *hw); @@ -486,4 +498,23 @@ void ieee802154_stop_queue(struct ieee802154_hw *hw); void ieee802154_xmit_complete(struct ieee802154_hw *hw, struct sk_buff *skb, bool ifs_handling); +/** + * ieee802154_xmit_error - offloaded frame transmission failed + * + * @hw: pointer as obtained from ieee802154_alloc_hw(). + * @skb: buffer for transmission + * @reason: error code + */ +void ieee802154_xmit_error(struct ieee802154_hw *hw, struct sk_buff *skb, + int reason); + +/** + * ieee802154_xmit_hw_error - frame could not be offloaded to the transmitter + * because of a hardware error (bus error, timeout, etc) + * + * @hw: pointer as obtained from ieee802154_alloc_hw(). + * @skb: buffer for transmission + */ +void ieee802154_xmit_hw_error(struct ieee802154_hw *hw, struct sk_buff *skb); + #endif /* NET_MAC802154_H */ |