Re: [PATCH 0/2] crypto: add new driver for Marvell CESA

Andrew Lunn
2015-04-09T15:23:24Z

On Thu, Apr 09, 2015 at 04:58:41PM +0200, Boris Brezillon wrote:
> Hello,
>
> This is an attempt to replace the mv_cesa driver by a new one to address
> some limitations of the existing driver.
> >From a performance and CPU load point of view the most important
> limitation is the lack of DMA support, thus preventing us from chaining
> crypto operations.
>
> I know we usually try to adapt existing drivers instead of replacing them
> by new ones, but after trying to refactor the mv_cesa driver I realized it
> would take longer than writing an new one from scratch.

Hi Boris

What is the situation with backwards compatibility? I see you have
kept the old compatibility string, and added lots of new ones, and
deprecated some properties. Will an old DT blob still work?

Thanks
Andrew