barebox picotcp integration (2015.06.14)

[Sascha Hauer]

On Sat, Jun 20, 2015 at 02:09:12PM +0300, Antony Pavlov wrote:
> On Wed, 17 Jun 2015 11:28:57 +0200
> Sascha Hauer <s.hauer at pengutronix.de> wrote:
> 
> > On Mon, Jun 15, 2015 at 01:13:43AM +0300, Antony Pavlov wrote:
> > > Hi!
> > > 
> > > I have just published latest picotcp-enabled barebox.
> > > Please see my 20150614.picotcp branch in my github barebox repo
> > > (https://github.com/frantony/barebox/tree/20150614.picotcp).
> > > 
> ...
> > 
> > Why are you using the picotcp tftp implementation? picotcp surely
> > supports sending/receiving udp packets, right? Wouldn't it be a good
> > first step to replace the barebox udp API with the one picotcp provides?
> > I mean I would expect that you replace only the network stack, not the
> > network stack including the applications. If at some point we decide
> > that the tftp implementation in picotcp is better than the one in
> > barebox that would be the time to switch it.
> > 
> 
> I have reworked tftp support: now barebox tftp implementation is used on top
> of picotcp udp/ip stack and works 2 times slower than original u-boot stack-based
> implementation (I have tested it with sandbox arch).

Do you have an idea why this is slower? I had a quick look into it and
found nothing obvious.

Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |