xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

rt2x00: Implement rt2x00usb_kick_tx_queue()

Browse Source 
rt2x00usb_kick_tx_queue() will loop over all entries
within the INDEX_DONE->INDEX range and kick each entry
which is pending to be kicked. This makes the kick_tx_queue
approach work the same as with the PCI drivers which
will allow for more code generalisation into rt2x00lib.

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
2008-06-06 22:47:39 +02:00
committed by John W. Linville
parent 565a019ac6
commit f019d51410
5 changed files with 67 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
drivers/net/wireless/rt2x00/rt2x00usb.c
View File

@@ -232,9 +232,10 @@ int rt2x00usb_write_tx_data(struct rt2x00_dev *rt2x00dev,
* Initialize URB and send the frame to the device.
*/
__set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
__set_bit(ENTRY_DATA_PENDING, &entry->flags);
usb_fill_bulk_urb(entry_priv->urb, usb_dev, usb_sndbulkpipe(usb_dev, 1),
skb->data, length, rt2x00usb_interrupt_txdone, entry);
usb_submit_urb(entry_priv->urb, GFP_ATOMIC);
rt2x00queue_index_inc(queue, Q_INDEX);
@@ -242,6 +243,51 @@ int rt2x00usb_write_tx_data(struct rt2x00_dev *rt2x00dev,
}
EXPORT_SYMBOL_GPL(rt2x00usb_write_tx_data);
static inline void rt2x00usb_kick_tx_entry(struct queue_entry *entry)
{
struct queue_entry_priv_usb *entry_priv = entry->priv_data;
if (__test_and_clear_bit(ENTRY_DATA_PENDING, &entry->flags))
usb_submit_urb(entry_priv->urb, GFP_ATOMIC);
}
void rt2x00usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
const enum data_queue_qid qid)
{
struct data_queue *queue = rt2x00queue_get_queue(rt2x00dev, qid);
unsigned long irqflags;
unsigned int index;
unsigned int index_done;
unsigned int i;
/*
* Only protect the range we are going to loop over,
* if during our loop a extra entry is set to pending
* it should not be kicked during this run, since it
* is part of another TX operation.
*/
spin_lock_irqsave(&queue->lock, irqflags);
index = queue->index[Q_INDEX];
index_done = queue->index[Q_INDEX_DONE];
spin_unlock_irqrestore(&queue->lock, irqflags);
/*
* Start from the TX done pointer, this guarentees that we will
* send out all frames in the correct order.
*/
if (index_done < index) {
for (i = index_done; i < index; i++)
rt2x00usb_kick_tx_entry(&queue->entries[i]);
} else {
for (i = index_done; i < queue->limit; i++)
rt2x00usb_kick_tx_entry(&queue->entries[i]);
for (i = 0; i < index; i++)
rt2x00usb_kick_tx_entry(&queue->entries[i]);
}
}
EXPORT_SYMBOL_GPL(rt2x00usb_kick_tx_queue);
/*
* RX data handlers.
*/