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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

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