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Commit 227d2dc1 authored by James Ketrenos's avatar James Ketrenos
Browse files

Updated to support ieee80211 callback to is_queue_full for 802.11e 


support.

Signed-off-by: default avatarJames Ketrenos <jketreno@linux.intel.com>
parent d2021cb4

drivers/net/wireless/ipw2200.c

+31 −9
Original line number Diff line number Diff line
@@ -9654,7 +9654,7 @@ modify to send one tfd per fragment instead of using chunking. otherwise 
we need to heavily modify the ieee80211_skb_to_txb.

*/



static inline void ipw_tx_skb(struct ipw_priv *priv, struct ieee80211_txb *txb,

static inline int ipw_tx_skb(struct ipw_priv *priv, struct ieee80211_txb *txb,

			     int pri)

{

	struct ieee80211_hdr_3addr *hdr = (struct ieee80211_hdr_3addr *)
@@ -9672,6 +9672,11 @@ static inline void ipw_tx_skb(struct ipw_priv *priv, struct ieee80211_txb *txb, 
	u16 remaining_bytes;

	int fc;



	/* If there isn't room in the queue, we return busy and let the

	 * network stack requeue the packet for us */

	if (ipw_queue_space(q) < q->high_mark)

		return NETDEV_TX_BUSY;



	switch (priv->ieee->iw_mode) {

	case IW_MODE_ADHOC:

		hdr_len = IEEE80211_3ADDR_LEN;
@@ -9837,14 +9842,28 @@ static inline void ipw_tx_skb(struct ipw_priv *priv, struct ieee80211_txb *txb, 
	q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);

	ipw_write32(priv, q->reg_w, q->first_empty);



	if (ipw_queue_space(q) < q->high_mark)

		netif_stop_queue(priv->net_dev);



	return;

	return NETDEV_TX_OK;



      drop:

	IPW_DEBUG_DROP("Silently dropping Tx packet.\n");

	ieee80211_txb_free(txb);

	return NETDEV_TX_OK;

}



static int ipw_net_is_queue_full(struct net_device *dev, int pri)

{

	struct ipw_priv *priv = ieee80211_priv(dev);

#ifdef CONFIG_IPW_QOS

	int tx_id = ipw_get_tx_queue_number(priv, pri);

	struct clx2_tx_queue *txq = &priv->txq[tx_id];

#else

	struct clx2_tx_queue *txq = &priv->txq[0];

#endif				/* CONFIG_IPW_QOS */



	if (ipw_queue_space(&txq->q) < txq->q.high_mark)

		return 1;



	return 0;

}



static int ipw_net_hard_start_xmit(struct ieee80211_txb *txb,
@@ -9852,6 +9871,7 @@ static int ipw_net_hard_start_xmit(struct ieee80211_txb *txb, 
{

	struct ipw_priv *priv = ieee80211_priv(dev);

	unsigned long flags;

	int ret;



	IPW_DEBUG_TX("dev->xmit(%d bytes)\n", txb->payload_size);

	spin_lock_irqsave(&priv->lock, flags);
@@ -9863,11 +9883,12 @@ static int ipw_net_hard_start_xmit(struct ieee80211_txb *txb, 
		goto fail_unlock;

	}



	ipw_tx_skb(priv, txb, pri);

	ret = ipw_tx_skb(priv, txb, pri);

	if (ret == NETDEV_TX_OK)

		__ipw_led_activity_on(priv);

	spin_unlock_irqrestore(&priv->lock, flags);



	return 0;

	return ret;



      fail_unlock:

	spin_unlock_irqrestore(&priv->lock, flags);
@@ -10706,6 +10727,7 @@ static int ipw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 


	priv->ieee->hard_start_xmit = ipw_net_hard_start_xmit;

	priv->ieee->set_security = shim__set_security;

	priv->ieee->is_queue_full = ipw_net_is_queue_full;



#ifdef CONFIG_IPW_QOS

	priv->ieee->handle_management_frame = ipw_handle_management_frame;