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[PATCH 07/13] rapidio/tsi721_dma: advance queue processing from transfer submit call

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  [PATCH 07/13] rapidio/tsi721_dma: advance queue processing from transfer submit call Alexandre Bounine <alexandre.bounine@idt.com> - 2016-07-21 20:20 +0200

#1448039 — [PATCH 07/13] 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.

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>
Cc: linux-kernel@vger.kernel.org
---
 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 13c669b..e2a4185 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;
-- 
1.7.8.4

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