From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752555AbcGUSTp (ORCPT ); Thu, 21 Jul 2016 14:19:45 -0400 Received: from mxout1.idt.com ([157.165.5.25]:59620 "EHLO mxout1.idt.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752259AbcGUST1 (ORCPT ); Thu, 21 Jul 2016 14:19:27 -0400 From: Alexandre Bounine To: Andrew Morton Cc: Alexandre Bounine , Matt Porter , Andre van Herk , Barry Wood , linux-kernel@vger.kernel.org Subject: [PATCH 07/13] rapidio/tsi721_dma: advance queue processing from transfer submit call Date: Thu, 21 Jul 2016 14:18:48 -0400 Message-Id: <1469125134-16523-8-git-send-email-alexandre.bounine@idt.com> X-Mailer: git-send-email 1.7.8.4 In-Reply-To: <1469125134-16523-1-git-send-email-alexandre.bounine@idt.com> References: <1469125134-16523-1-git-send-email-alexandre.bounine@idt.com> X-TM-AS-MML: disable Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 Cc: Matt Porter Cc: Andre van Herk Cc: Barry Wood 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