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| author | Johannes Stezenbach <js@sig21.net> | 2011-04-18 17:29:12 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-04-19 23:39:27 +0400 |
| commit | 0e0d39e5f3a3e59c8513b59d4feeeadcb93b707d (patch) | |
| tree | 72b63cb8c5a994cc7e6253b241aeddd131d618f0 /drivers/net/wireless/rt2x00/rt2x00.h | |
| parent | 8da3efbb4a18be30ed03dd05af18d0b026b15173 (diff) | |
| download | linux-0e0d39e5f3a3e59c8513b59d4feeeadcb93b707d.tar.xz | |
rt2800usb: read TX_STA_FIFO asynchronously
Trying to fix the "TX status report missed" warnings
by reading the TX_STA_FIFO entries as quickly as possible.
The TX_STA_FIFO is too small in hardware, thus reading
it only from the workqueue is too slow and entries get lost.
Start an asynchronous read of the TX_STA_FIFO directly from
the TX URB completion callback (atomic context, thus it cannot
use the blocking rt2800_register_read()). If the async
read returns a valid FIFO entry, it is pushed into a larger
FIFO inside struct rt2x00_dev, until rt2800_txdone() picks
it up.
A .tx_dma_done callback is added to struct rt2x00lib_ops
to trigger the async read from the URB completion callback.
Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00.h')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index 79c385accfac..e3b9b5146bf5 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -571,6 +571,7 @@ struct rt2x00lib_ops { void (*kick_queue) (struct data_queue *queue); void (*stop_queue) (struct data_queue *queue); void (*flush_queue) (struct data_queue *queue); + void (*tx_dma_done) (struct queue_entry *entry); /* * TX control handlers |