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[PATCH] libertas: fixed transmission flow control on the mesh interface

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This patch implements proper transmission flow control on mshX.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Javier Cardona 2007-05-25 12:06:56 -04:00 committed by John W. Linville
parent 32a74b7c8f
commit 51d84f5016
5 changed files with 41 additions and 12 deletions
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14
drivers/net/wireless/libertas/if_usb.c
View File

@ -60,8 +60,10 @@ static void if_usb_write_bulk_callback(struct urb *urb)
/* Wake main thread if commands are pending */
if (!adapter->cur_cmd)
wake_up_interruptible(&priv->mainthread.waitq);
if ((adapter->connect_status == libertas_connected))
if ((adapter->connect_status == libertas_connected)) {
netif_wake_queue(dev);
netif_wake_queue(priv->mesh_dev);
}
}
return;
@ -195,6 +197,9 @@ static int if_usb_probe(struct usb_interface *intf,
if (!(priv = wlan_add_card(usb_cardp)))
goto dealloc;
if (wlan_add_mesh(priv))
goto dealloc;
if (libertas_activate_card(priv))
goto dealloc;
@ -203,9 +208,6 @@ static int if_usb_probe(struct usb_interface *intf,
libertas_found++;
}
if (wlan_add_mesh(priv))
goto dealloc;
usb_get_dev(udev);
usb_set_intfdata(intf, usb_cardp);
@ -790,6 +792,7 @@ int libertas_sbi_register_dev(wlan_private * priv)
priv->hotplug_device = &(cardp->udev->dev);
SET_NETDEV_DEV(cardp->eth_dev, &(cardp->udev->dev));
SET_NETDEV_DEV(priv->mesh_dev, &(cardp->udev->dev));
lbs_deb_usbd(&cardp->udev->dev, "udev pointer is at %p\n",
cardp->udev);
@ -896,6 +899,7 @@ static int if_usb_suspend(struct usb_interface *intf, pm_message_t message)
return -1;
netif_device_detach(cardp->eth_dev);
netif_device_detach(priv->mesh_dev);
/* Unlink tx & rx urb */
usb_kill_urb(cardp->tx_urb);
@ -910,6 +914,7 @@ static int if_usb_suspend(struct usb_interface *intf, pm_message_t message)
static int if_usb_resume(struct usb_interface *intf)
{
struct usb_card_rec *cardp = usb_get_intfdata(intf);
wlan_private *priv = cardp->priv;
lbs_deb_enter(LBS_DEB_USB);
@ -918,6 +923,7 @@ static int if_usb_resume(struct usb_interface *intf)
if_usb_submit_rx_urb(cardp->priv);
netif_device_attach(cardp->eth_dev);
netif_device_attach(priv->mesh_dev);
lbs_deb_leave(LBS_DEB_USB);
return 0;

6
drivers/net/wireless/libertas/join.c
View File

@ -807,6 +807,9 @@ int libertas_ret_80211_associate(wlan_private * priv,
netif_carrier_on(priv->wlan_dev.netdev);
netif_wake_queue(priv->wlan_dev.netdev);
netif_carrier_on(priv->mesh_dev);
netif_wake_queue(priv->mesh_dev);
lbs_deb_join("ASSOC_RESP: Associated \n");
memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
@ -899,6 +902,9 @@ int libertas_ret_80211_ad_hoc_start(wlan_private * priv,
netif_carrier_on(priv->wlan_dev.netdev);
netif_wake_queue(priv->wlan_dev.netdev);
netif_carrier_on(priv->mesh_dev);
netif_wake_queue(priv->mesh_dev);
memset(&wrqu, 0, sizeof(wrqu));
memcpy(wrqu.ap_addr.sa_data, adapter->curbssparams.bssid, ETH_ALEN);
wrqu.ap_addr.sa_family = ARPHRD_ETHER;

15
drivers/net/wireless/libertas/main.c
View File

@ -266,8 +266,11 @@ static int wlan_dev_open(struct net_device *dev)
if (adapter->connect_status == libertas_connected) {
netif_carrier_on(priv->wlan_dev.netdev);
} else
netif_carrier_on(priv->mesh_dev);
} else {
netif_carrier_off(priv->wlan_dev.netdev);
netif_carrier_off(priv->mesh_dev);
}
lbs_deb_leave(LBS_DEB_NET);
return 0;
@ -285,7 +288,7 @@ static int mesh_open(struct net_device *dev)
if (pre_open_check(dev) == -1)
return -1;
priv->mesh_open = 1 ;
netif_start_queue(priv->mesh_dev);
netif_wake_queue(priv->mesh_dev);
if (priv->infra_open == 0)
return wlan_dev_open(priv->wlan_dev.netdev) ;
return 0;
@ -317,6 +320,7 @@ static int wlan_dev_close(struct net_device *dev)
lbs_deb_enter(LBS_DEB_NET);
netif_carrier_off(priv->wlan_dev.netdev);
netif_carrier_off(priv->mesh_dev);
priv->open = 0;
lbs_deb_leave(LBS_DEB_NET);
@ -373,6 +377,7 @@ static int wlan_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
}
netif_stop_queue(priv->wlan_dev.netdev);
netif_stop_queue(priv->mesh_dev);
if (libertas_process_tx(priv, skb) == 0)
dev->trans_start = jiffies;
@ -435,8 +440,10 @@ static void wlan_tx_timeout(struct net_device *dev)
libertas_send_tx_feedback(priv);
} else
wake_up_interruptible(&priv->mainthread.waitq);
} else if (priv->adapter->connect_status == libertas_connected)
} else if (priv->adapter->connect_status == libertas_connected) {
netif_wake_queue(priv->wlan_dev.netdev);
netif_wake_queue(priv->mesh_dev);
}
lbs_deb_leave(LBS_DEB_TX);
}
@ -1029,6 +1036,7 @@ void wlan_remove_mesh(wlan_private *priv)
mesh_dev = priv->mesh_dev;
netif_stop_queue(mesh_dev);
netif_carrier_off(priv->mesh_dev);
device_remove_file(&(mesh_dev->dev), &dev_attr_libertas_mpp);
unregister_netdev(mesh_dev);
@ -1127,6 +1135,7 @@ void libertas_interrupt(struct net_device *dev)
if (priv->adapter->psstate == PS_STATE_SLEEP) {
priv->adapter->psstate = PS_STATE_AWAKE;
netif_wake_queue(dev);
netif_wake_queue(priv->mesh_dev);
}
wake_up_interruptible(&priv->mainthread.waitq);

6
drivers/net/wireless/libertas/scan.c
View File

@ -807,6 +807,8 @@ int wlan_scan_networks(wlan_private * priv,
if (!scancurrentchanonly) {
netif_stop_queue(priv->wlan_dev.netdev);
netif_carrier_off(priv->wlan_dev.netdev);
netif_stop_queue(priv->mesh_dev);
netif_carrier_off(priv->mesh_dev);
}
ret = wlan_scan_channel_list(priv,
@ -825,8 +827,8 @@ int wlan_scan_networks(wlan_private * priv,
wlan_scan_process_results(priv);
if (priv->adapter->connect_status == libertas_connected) {
netif_carrier_on(priv->wlan_dev.netdev);
netif_wake_queue(priv->wlan_dev.netdev);
netif_carrier_on(priv->mesh_dev);
netif_wake_queue(priv->mesh_dev);
}
out:

12
drivers/net/wireless/libertas/tx.c
View File

@ -159,6 +159,7 @@ done:
skb_orphan(skb);
/* stop processing outgoing pkts */
netif_stop_queue(priv->wlan_dev.netdev);
netif_stop_queue(priv->mesh_dev);
/* freeze any packets already in our queues */
priv->adapter->TxLockFlag = 1;
} else {
@ -195,10 +196,13 @@ static void wlan_tx_queue(wlan_private *priv, struct sk_buff *skb)
WARN_ON(priv->adapter->tx_queue_idx >= NR_TX_QUEUE);
adapter->tx_queue_ps[adapter->tx_queue_idx++] = skb;
if (adapter->tx_queue_idx == NR_TX_QUEUE)
if (adapter->tx_queue_idx == NR_TX_QUEUE) {
netif_stop_queue(priv->wlan_dev.netdev);
else
netif_stop_queue(priv->mesh_dev);
} else {
netif_start_queue(priv->wlan_dev.netdev);
netif_start_queue(priv->mesh_dev);
}
spin_unlock(&adapter->txqueue_lock);
}
@ -279,6 +283,8 @@ void libertas_send_tx_feedback(wlan_private * priv)
libertas_upload_rx_packet(priv, adapter->currenttxskb);
adapter->currenttxskb = NULL;
priv->adapter->TxLockFlag = 0;
if (priv->adapter->connect_status == libertas_connected)
if (priv->adapter->connect_status == libertas_connected) {
netif_wake_queue(priv->wlan_dev.netdev);
netif_wake_queue(priv->mesh_dev);
}
}