mac802154: tx: add support for xmit_async callback
This patch renames the existsing xmit callback to xmit_sync and
introduces an asynchronous xmit_async function. If ieee802154_ops
doesn't provide the xmit_async callback, then we have a fallback to
the xmit_sync callback.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Alan Ott <alan@signal11.us>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/mac802154/tx.c b/net/mac802154/tx.c
index 23139ca..1a4f6d9 100644
--- a/net/mac802154/tx.c
+++ b/net/mac802154/tx.c
@@ -50,7 +50,7 @@
struct sk_buff *skb = cb->skb;
int res;
- res = local->ops->xmit(&local->hw, skb);
+ res = local->ops->xmit_sync(&local->hw, skb);
if (res) {
pr_debug("transmission failed\n");
/* Restart the netif queue on each sub_if_data object. */
@@ -66,6 +66,7 @@
mac802154_tx(struct ieee802154_local *local, struct sk_buff *skb)
{
struct wpan_xmit_cb *cb = wpan_xmit_cb(skb);
+ int ret;
mac802154_monitors_rx(local, skb);
@@ -83,11 +84,20 @@
/* Stop the netif queue on each sub_if_data object. */
ieee802154_stop_queue(&local->hw);
- INIT_WORK(&cb->work, mac802154_xmit_worker);
- cb->skb = skb;
- cb->local = local;
+ /* async is priority, otherwise sync is fallback */
+ if (local->ops->xmit_async) {
+ ret = local->ops->xmit_async(&local->hw, skb);
+ if (ret) {
+ ieee802154_wake_queue(&local->hw);
+ goto err_tx;
+ }
+ } else {
+ INIT_WORK(&cb->work, mac802154_xmit_worker);
+ cb->skb = skb;
+ cb->local = local;
- queue_work(local->workqueue, &cb->work);
+ queue_work(local->workqueue, &cb->work);
+ }
return NETDEV_TX_OK;