[dpdk-dev] [PATCH v10 06/12] pdump: support pcapng and filtering

[Stephen Hemminger]

On Thu, 23 Sep 2021 16:11:42 +0000
"Pattan, Reshma" <reshma.pattan at intel.com> wrote:

> > +/*
> > + * Note: version numbers intentionally start at 3
> > + * in order to catch any application built with older out
> > + * version of DPDK using incompatible client request format.
> > + */
> >  enum pdump_version {
> > -	V1 = 1
> > +	PDUMP_CLIENT_LEGACY = 3,
> > +	PDUMP_CLIENT_PCAPNG = 4,  
> The version numbering was internal to library,  applications do not have control over  it, can't we start  enumeration from 1?

Although, DPDK does not support mixing versions between primary/secondary
process. Someone is sure to try.

I wanted to make sure that if user did something invalid like using
old pdump (built with DPDK 20.11) and new application that it would
fail in a direct manner.