lkml.org 
[lkml]   [2016]   [Mar]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRE: [PATCH v3 1/4] dmaengine: xilinx_vdma: Improve SG engine handling
Date
> -----Original Message-----
> From: Vinod Koul [mailto:vinod.koul@intel.com]
> Sent: Thursday, March 03, 2016 9:03 PM
> To: Appana Durga Kedareswara Rao
> Cc: dan.j.williams@intel.com; Michal Simek; Soren Brinkmann; Appana Durga
> Kedareswara Rao; moritz.fischer@ettus.com;
> laurent.pinchart@ideasonboard.com; luis@debethencourt.com; Anirudha
> Sarangi; 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
>
> 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

Thanks ... Will fix next time onwards...

Regards,
Kedar.

>
> --
> ~Vinod

\
 
 \ /
  Last update: 2016-03-03 18:01    [W:0.094 / U:0.672 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site