Hello.
On 04/02/2013 10:47 PM, Alan Ott wrote:
> Use netif_stop_queue() and netif_wake_queue() to control the flow of
> packets to mac802154 devices. Since many IEEE 802.15.4 devices have no
> output buffer, and since the mac802154 xmit() function is designed to
> block, netif_stop_queue() is called after each packet.
>
> Signed-off-by: Alan Ott <a...@signal11.us>
> ---
> net/mac802154/tx.c | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/net/mac802154/tx.c b/net/mac802154/tx.c
> index a248246..fe3e02c 100644
> --- a/net/mac802154/tx.c
> +++ b/net/mac802154/tx.c
[...]
> @@ -71,6 +73,12 @@ static void mac802154_xmit_worker(struct work_struct *work)
> out:
> mutex_unlock(&xw->priv->phy->pib_lock);
>
> + /* Restart the netif queue on each sub_if_data object. */
> + rcu_read_lock();
> + list_for_each_entry_rcu(sdata, &xw->priv->slaves, list) {
> + netif_wake_queue(sdata->dev);
> + }
Are {} really necessary here?
> @@ -108,6 +117,13 @@ netdev_tx_t mac802154_tx(struct mac802154_priv *priv,
> struct sk_buff *skb,
> return NETDEV_TX_BUSY;
> }
>
> + /* Stop the netif queue on each sub_if_data object. */
> + rcu_read_lock();
> + list_for_each_entry_rcu(sdata, &priv->slaves, list) {
> + netif_stop_queue(sdata->dev);
> + }
And here?
WBR, Sergei
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