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| author | Alexandre Bounine <alexandre.bounine@idt.com> | 2016-08-02 14:06:46 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-02 19:35:35 -0400 |
| commit | f5485eb0b6eb8a3e5841cfea34a930822f7252bc (patch) | |
| tree | 1638a39773d96054e188a4d3f3c47812e3bf3818 /drivers/rapidio | |
| parent | e519685de3e44bb013d81f5ead04ac4b33c9b3a1 (diff) | |
| download | lwn-f5485eb0b6eb8a3e5841cfea34a930822f7252bc.tar.gz lwn-f5485eb0b6eb8a3e5841cfea34a930822f7252bc.zip | |
rapidio/tsi721_dma: advance queue processing from transfer submit call
Add advancing transfer queue immediately from transfer submit call. DMA
performance improvement: This will start transfer without waiting for
'issue_pending' command if there is no DMA transfer in progress.
Link: http://lkml.kernel.org/r/1469125134-16523-8-git-send-email-alexandre.bounine@idt.com
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com>
Cc: Barry Wood <barry.wood@idt.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rapidio')
| -rw-r--r-- | drivers/rapidio/devices/tsi721_dma.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/rapidio/devices/tsi721_dma.c b/drivers/rapidio/devices/tsi721_dma.c index 13c669bac019..e2a418598129 100644 --- a/drivers/rapidio/devices/tsi721_dma.c +++ b/drivers/rapidio/devices/tsi721_dma.c @@ -726,6 +726,7 @@ static dma_cookie_t tsi721_tx_submit(struct dma_async_tx_descriptor *txd) cookie = dma_cookie_assign(txd); desc->status = DMA_IN_PROGRESS; list_add_tail(&desc->desc_node, &bdma_chan->queue); + tsi721_advance_work(bdma_chan, NULL); spin_unlock_bh(&bdma_chan->lock); return cookie; |