diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00debug.c | 5 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00dev.c | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00queue.c | 13 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00queue.h | 21 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00usb.c | 27 |
6 files changed, 59 insertions, 14 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index 762f6b4e7af..0ae942cb66d 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -1070,6 +1070,7 @@ static inline void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev, */ void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev); void rt2x00lib_pretbtt(struct rt2x00_dev *rt2x00dev); +void rt2x00lib_dmadone(struct queue_entry *entry); void rt2x00lib_txdone(struct queue_entry *entry, struct txdone_entry_desc *txdesc); void rt2x00lib_txdone_noinfo(struct queue_entry *entry, u32 status); diff --git a/drivers/net/wireless/rt2x00/rt2x00debug.c b/drivers/net/wireless/rt2x00/rt2x00debug.c index daf7f950a28..54dc44bb415 100644 --- a/drivers/net/wireless/rt2x00/rt2x00debug.c +++ b/drivers/net/wireless/rt2x00/rt2x00debug.c @@ -338,14 +338,15 @@ static ssize_t rt2x00debug_read_queue_stats(struct file *file, return -ENOMEM; temp = data + - sprintf(data, "qid\tcount\tlimit\tlength\tindex\tdone\n"); + sprintf(data, "qid\tcount\tlimit\tlength\tindex\tdma done\tdone\n"); queue_for_each(intf->rt2x00dev, queue) { spin_lock_irqsave(&queue->lock, irqflags); - temp += sprintf(temp, "%d\t%d\t%d\t%d\t%d\t%d\n", queue->qid, + temp += sprintf(temp, "%d\t%d\t%d\t%d\t%d\t%d\t%d\n", queue->qid, queue->count, queue->limit, queue->length, queue->index[Q_INDEX], + queue->index[Q_INDEX_DMA_DONE], queue->index[Q_INDEX_DONE]); spin_unlock_irqrestore(&queue->lock, irqflags); diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c index 580595ba568..053fdd3bd72 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -251,6 +251,12 @@ void rt2x00lib_pretbtt(struct rt2x00_dev *rt2x00dev) } EXPORT_SYMBOL_GPL(rt2x00lib_pretbtt); +void rt2x00lib_dmadone(struct queue_entry *entry) +{ + rt2x00queue_index_inc(entry->queue, Q_INDEX_DMA_DONE); +} +EXPORT_SYMBOL_GPL(rt2x00lib_dmadone); + void rt2x00lib_txdone(struct queue_entry *entry, struct txdone_entry_desc *txdesc) { diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c index ecf57635ae5..6d41599a090 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.c +++ b/drivers/net/wireless/rt2x00/rt2x00queue.c @@ -731,13 +731,13 @@ void rt2x00queue_index_inc(struct data_queue *queue, enum queue_index index) if (queue->index[index] >= queue->limit) queue->index[index] = 0; + queue->last_action[index] = jiffies; + if (index == Q_INDEX) { queue->length++; - queue->last_index = jiffies; } else if (index == Q_INDEX_DONE) { queue->length--; queue->count++; - queue->last_index_done = jiffies; } spin_unlock_irqrestore(&queue->lock, irqflags); @@ -746,14 +746,17 @@ void rt2x00queue_index_inc(struct data_queue *queue, enum queue_index index) static void rt2x00queue_reset(struct data_queue *queue) { unsigned long irqflags; + unsigned int i; spin_lock_irqsave(&queue->lock, irqflags); queue->count = 0; queue->length = 0; - queue->last_index = jiffies; - queue->last_index_done = jiffies; - memset(queue->index, 0, sizeof(queue->index)); + + for (i = 0; i < Q_INDEX_MAX; i++) { + queue->index[i] = 0; + queue->last_action[i] = jiffies; + } spin_unlock_irqrestore(&queue->lock, irqflags); } diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h index 0e38a911195..d81d85f3486 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.h +++ b/drivers/net/wireless/rt2x00/rt2x00queue.h @@ -401,6 +401,8 @@ struct queue_entry { * * @Q_INDEX: Index pointer to the current entry in the queue, if this entry is * owned by the hardware then the queue is considered to be full. + * @Q_INDEX_DMA_DONE: Index pointer for the next entry which will have been + * transfered to the hardware. * @Q_INDEX_DONE: Index pointer to the next entry which will be completed by * the hardware and for which we need to run the txdone handler. If this * entry is not owned by the hardware the queue is considered to be empty. @@ -409,6 +411,7 @@ struct queue_entry { */ enum queue_index { Q_INDEX, + Q_INDEX_DMA_DONE, Q_INDEX_DONE, Q_INDEX_MAX, }; @@ -445,13 +448,12 @@ struct data_queue { enum data_queue_qid qid; spinlock_t lock; - unsigned long last_index; - unsigned long last_index_done; unsigned int count; unsigned short limit; unsigned short threshold; unsigned short length; unsigned short index[Q_INDEX_MAX]; + unsigned long last_action[Q_INDEX_MAX]; unsigned short txop; unsigned short aifs; @@ -616,12 +618,23 @@ static inline int rt2x00queue_threshold(struct data_queue *queue) } /** - * rt2x00queue_timeout - Check if a timeout occured for this queue + * rt2x00queue_timeout - Check if a timeout occured for STATUS reorts * @queue: Queue to check. */ static inline int rt2x00queue_timeout(struct data_queue *queue) { - return time_after(queue->last_index, queue->last_index_done + (HZ / 10)); + return time_after(queue->last_action[Q_INDEX_DMA_DONE], + queue->last_action[Q_INDEX_DONE] + (HZ / 10)); +} + +/** + * rt2x00queue_timeout - Check if a timeout occured for DMA transfers + * @queue: Queue to check. + */ +static inline int rt2x00queue_dma_timeout(struct data_queue *queue) +{ + return time_after(queue->last_action[Q_INDEX], + queue->last_action[Q_INDEX_DMA_DONE] + (HZ / 10)); } /** diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c index 6cc7aa418d8..aec6440d364 100644 --- a/drivers/net/wireless/rt2x00/rt2x00usb.c +++ b/drivers/net/wireless/rt2x00/rt2x00usb.c @@ -213,6 +213,11 @@ static void rt2x00usb_interrupt_txdone(struct urb *urb) return; /* + * Report the frame as DMA done + */ + rt2x00lib_dmadone(entry); + + /* * Check if the frame was correctly uploaded */ if (urb->status) @@ -283,13 +288,14 @@ void rt2x00usb_kill_tx_queue(struct data_queue *queue) } EXPORT_SYMBOL_GPL(rt2x00usb_kill_tx_queue); -static void rt2x00usb_watchdog_reset_tx(struct data_queue *queue) +static void rt2x00usb_watchdog_tx_dma(struct data_queue *queue) { struct queue_entry *entry; struct queue_entry_priv_usb *entry_priv; unsigned short threshold = queue->threshold; - WARNING(queue->rt2x00dev, "TX queue %d timed out, invoke reset", queue->qid); + WARNING(queue->rt2x00dev, "TX queue %d DMA timed out," + " invoke forced forced reset", queue->qid); /* * Temporarily disable the TX queue, this will force mac80211 @@ -331,13 +337,23 @@ static void rt2x00usb_watchdog_reset_tx(struct data_queue *queue) ieee80211_wake_queue(queue->rt2x00dev->hw, queue->qid); } +static void rt2x00usb_watchdog_tx_status(struct data_queue *queue) +{ + WARNING(queue->rt2x00dev, "TX queue %d status timed out," + " invoke forced tx handler", queue->qid); + + ieee80211_queue_work(queue->rt2x00dev->hw, &queue->rt2x00dev->txdone_work); +} + void rt2x00usb_watchdog(struct rt2x00_dev *rt2x00dev) { struct data_queue *queue; tx_queue_for_each(rt2x00dev, queue) { + if (rt2x00queue_dma_timeout(queue)) + rt2x00usb_watchdog_tx_dma(queue); if (rt2x00queue_timeout(queue)) - rt2x00usb_watchdog_reset_tx(queue); + rt2x00usb_watchdog_tx_status(queue); } } EXPORT_SYMBOL_GPL(rt2x00usb_watchdog); @@ -383,6 +399,11 @@ static void rt2x00usb_interrupt_rxdone(struct urb *urb) return; /* + * Report the frame as DMA done + */ + rt2x00lib_dmadone(entry); + + /* * Check if the received data is simply too small * to be actually valid, or if the urb is signaling * a problem. |