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From: Vinod Koul <vinod.koul@intel.com>
To: Kedareswara rao Appana <appana.durga.rao@xilinx.com>
Cc: dan.j.williams@intel.com, michal.simek@xilinx.com,
	soren.brinkmann@xilinx.com, appanad@xilinx.com,
	moritz.fischer@ettus.com, laurent.pinchart@ideasonboard.com,
	luis@debethencourt.com, anirudh@xilinx.com,
	dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 1/4] dmaengine: xilinx_vdma: Improve SG engine handling
Date: Thu, 3 Mar 2016 21:03:23 +0530	[thread overview]
Message-ID: <20160303153323.GN11154@localhost> (raw)
In-Reply-To: <1456495434-11722-1-git-send-email-appanad@xilinx.com>

On Fri, Feb 26, 2016 at 07:33:51PM +0530, Kedareswara rao Appana wrote:
> The current driver allows user to queue up multiple segments
> on to a single transaction descriptor. User will submit this single desc
> and in the issue_pending() we decode multiple segments and submit to SG HW engine.
> We free up the allocated_desc when it is submitted to the HW.
> 
> Existing code prevents the user to prepare multiple trasactions at same time as
> we are overwrite with the allocated_desc.
> 
> The best utilization of HW SG engine would happen if we collate the pending
> list when we start dma this patch updates the same.

Applied all. It is usually advisable to do cover letter using --cover-letter
for multi patch series

-- 
~Vinod

WARNING: multiple messages have this Message-ID (diff)
From: vinod.koul@intel.com (Vinod Koul)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 1/4] dmaengine: xilinx_vdma: Improve SG engine handling
Date: Thu, 3 Mar 2016 21:03:23 +0530	[thread overview]
Message-ID: <20160303153323.GN11154@localhost> (raw)
In-Reply-To: <1456495434-11722-1-git-send-email-appanad@xilinx.com>

On Fri, Feb 26, 2016 at 07:33:51PM +0530, Kedareswara rao Appana wrote:
> The current driver allows user to queue up multiple segments
> on to a single transaction descriptor. User will submit this single desc
> and in the issue_pending() we decode multiple segments and submit to SG HW engine.
> We free up the allocated_desc when it is submitted to the HW.
> 
> Existing code prevents the user to prepare multiple trasactions at same time as
> we are overwrite with the allocated_desc.
> 
> The best utilization of HW SG engine would happen if we collate the pending
> list when we start dma this patch updates the same.

Applied all. It is usually advisable to do cover letter using --cover-letter
for multi patch series

-- 
~Vinod

  parent reply	other threads:[~2016-03-03 15:29 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-26 14:03 [PATCH v3 1/4] dmaengine: xilinx_vdma: Improve SG engine handling Kedareswara rao Appana
2016-02-26 14:03 ` Kedareswara rao Appana
2016-02-26 14:03 ` [PATCH v3 2/4] dmaengine: xilinx_vdma: Simplify spin lock handling Kedareswara rao Appana
2016-02-26 14:03   ` Kedareswara rao Appana
2016-02-26 14:03 ` [PATCH v3 3/4] dmaengine: xilinx_vdma: Fix issues with non-parking mode Kedareswara rao Appana
2016-02-26 14:03   ` Kedareswara rao Appana
2016-02-26 14:03 ` [PATCH v3 4/4] dmaengine: xilinx_vdma: Use readl_poll_timeout instead of do while loop's Kedareswara rao Appana
2016-02-26 14:03   ` Kedareswara rao Appana
2016-03-03 15:29   ` Vinod Koul
2016-03-03 15:29     ` Vinod Koul
2016-03-03 17:12     ` Appana Durga Kedareswara Rao
2016-03-03 17:12       ` Appana Durga Kedareswara Rao
2016-03-03 15:33 ` Vinod Koul [this message]
2016-03-03 15:33   ` [PATCH v3 1/4] dmaengine: xilinx_vdma: Improve SG engine handling Vinod Koul
2016-03-03 16:28   ` Appana Durga Kedareswara Rao
2016-03-03 16:28     ` Appana Durga Kedareswara Rao

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