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rt2x00: Protect queue control with mutex

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Add wrapper functions in rt2x00queue.c to
start & stop queues. This control must be protected
using a mutex.

Queues can also be paused which will halt the flow
of packets between the driver and mac80211. This doesn't
require a mutex protection.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ivo van Doorn
2010-12-13 12:35:17 +01:00
committed by John W. Linville
parent dbba306f2a
commit 0b7fde54f9
9 changed files with 333 additions and 172 deletions
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22
drivers/net/wireless/rt2x00/rt2x00dev.c
View File

@@ -66,9 +66,9 @@ int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev)
set_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags);
/*
* Enable RX.
* Enable queues.
*/
rt2x00dev->ops->lib->start_queue(rt2x00dev->rx);
rt2x00queue_start_queues(rt2x00dev);
rt2x00link_start_tuner(rt2x00dev);
/*
@@ -76,11 +76,6 @@ int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev)
*/
rt2x00link_start_watchdog(rt2x00dev);
/*
* Start the TX queues.
*/
ieee80211_wake_queues(rt2x00dev->hw);
return 0;
}
@@ -89,22 +84,16 @@ void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev)
if (!test_and_clear_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
return;
/*
* Stop the TX queues in mac80211.
*/
ieee80211_stop_queues(rt2x00dev->hw);
rt2x00queue_stop_queues(rt2x00dev);
/*
* Stop watchdog monitoring.
*/
rt2x00link_stop_watchdog(rt2x00dev);
/*
* Disable RX.
* Stop all queues
*/
rt2x00link_stop_tuner(rt2x00dev);
rt2x00dev->ops->lib->stop_queue(rt2x00dev->rx);
rt2x00queue_stop_queues(rt2x00dev);
/*
* Disable radio.
@@ -249,7 +238,6 @@ void rt2x00lib_txdone(struct queue_entry *entry,
struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
enum data_queue_qid qid = skb_get_queue_mapping(entry->skb);
unsigned int header_length, i;
u8 rate_idx, rate_flags, retry_rates;
u8 skbdesc_flags = skbdesc->flags;
@@ -403,7 +391,7 @@ void rt2x00lib_txdone(struct queue_entry *entry,
* is reenabled when the txdone handler has finished.
*/
if (!rt2x00queue_threshold(entry->queue))
ieee80211_wake_queue(rt2x00dev->hw, qid);
rt2x00queue_unpause_queue(entry->queue);
}
EXPORT_SYMBOL_GPL(rt2x00lib_txdone);