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| author | Alexander Aring <alex.aring@gmail.com> | 2014-10-26 09:37:08 +0100 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2014-10-26 17:24:04 +0100 |
| commit | ed0a5dce0c29f30ee53a87793206156cf38ae70d (patch) | |
| tree | bb2f9e7a5c1017679f7918cd665b2c825550f6c7 /net/mac802154/tx.c | |
| parent | cdb66beaa0da7d326069b10bef090645d61d813f (diff) | |
| download | linux-ed0a5dce0c29f30ee53a87793206156cf38ae70d.tar.gz linux-ed0a5dce0c29f30ee53a87793206156cf38ae70d.tar.bz2 linux-ed0a5dce0c29f30ee53a87793206156cf38ae70d.zip | |
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>
Diffstat (limited to 'net/mac802154/tx.c')
| -rw-r--r-- | net/mac802154/tx.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/net/mac802154/tx.c b/net/mac802154/tx.c index 23139cae0764..1a4f6d91ab8c 100644 --- a/net/mac802154/tx.c +++ b/net/mac802154/tx.c @@ -50,7 +50,7 @@ static void mac802154_xmit_worker(struct work_struct *work) 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 @@ static netdev_tx_t 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 @@ mac802154_tx(struct ieee802154_local *local, struct sk_buff *skb) /* 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; |