[dpdk-dev] [PATCH] cmdline: increase commandline buffer size to 512

[Nélio Laranjeiro]

On Mon, Nov 09, 2015 at 11:45:04AM +0000, Mcnamara, John wrote:
> 
> 
> > -----Original Message-----
> > From: Nélio Laranjeiro [mailto:nelio.laranjeiro at 6wind.com]
> > Sent: Thursday, November 5, 2015 4:51 PM
> > To: Mcnamara, John; Olivier Matz; Thomas Monjalon
> > Cc: dev at dpdk.org
> > Subject: Re: [dpdk-dev] [PATCH] cmdline: increase commandline buffer size
> > to 512
> > 
> > On Thu, Nov 05, 2015 at 09:58:36AM +0000, John McNamara wrote:
> > > Increase commandline buffer size to 512 to allow for longer
> > > commandlines required by testpmd when dealing with flow director and
> > > IPv6 addresses.
> > >
> > > ...
> > >
> > >  /* configuration */
> > > -#define RDLINE_BUF_SIZE 256
> > > +#define RDLINE_BUF_SIZE 512
> > >
> > 
> > I have faced the same issue.  For some commands this value is still too
> > low.  For example,  RETA update can not be used, the command line limits
> > he configuration to 34 entries.
> > 
> > See http://dpdk.org/ml/archives/dev/2015-October/024681.html
> > and particularly
> > http://dpdk.org/ml/archives/dev/2015-October/024682.html
> > 
> > It was too late to announce an ABI change so we left out the cmdline
> > size update.
> > 
> > Olivier, Thomas, what do you think about this?  It seems this is really
> > blocking.
> 
> Hi,
> 
> Since the change breaks ABI I'll self nack.
> 
> However, this is something that should be fixed since it will affect any DPDK application with a long commandline.
> 
> I can put a warning of future ABI breakage in the release notes but I see that there are other #defines that you need to increase in your patchset so do you want to submit the ABI deprecation notice?
> 
> John.
> -- 

Hi John,

I will do it, I have another depreciation related to RETA.

Thanks.

-- 
Nélio Laranjeiro
6WIND