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Message-Id: <1469125134-16523-8-git-send-email-alexandre.bounine@idt.com> Date: Thu, 21 Jul 2016 14:18:48 -0400 From: Alexandre Bounine <alexandre.bounine@....com> To: Andrew Morton <akpm@...ux-foundation.org> Cc: Alexandre Bounine <alexandre.bounine@....com>, Matt Porter <mporter@...nel.crashing.org>, Andre van Herk <andre.van.herk@...drive-technologies.com>, Barry Wood <barry.wood@....com>, linux-kernel@...r.kernel.org Subject: [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@....com> Cc: Matt Porter <mporter@...nel.crashing.org> Cc: Andre van Herk <andre.van.herk@...drive-technologies.com> Cc: Barry Wood <barry.wood@....com> Cc: linux-kernel@...r.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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