Re: [dpdk-dev] [PATCH 1/6] testpmd: add io_retry forwarding

[Thomas Monjalon <thomas.monjalon@6wind.com>]

2016-05-26 02:40, Wang, Zhihong:
> From: Thomas Monjalon [mailto:thomas.monjalon@6wind.com]
> > 2016-05-05 18:46, Zhihong Wang:
> > > --- a/app/test-pmd/testpmd.h
> > > +++ b/app/test-pmd/testpmd.h
> > >  extern struct fwd_engine io_fwd_engine;
> > > +extern struct fwd_engine io_retry_fwd_engine;
> > >  extern struct fwd_engine mac_fwd_engine;
> > >  extern struct fwd_engine mac_retry_fwd_engine;
> > >  extern struct fwd_engine mac_swap_engine;
> > 
> > We now have 2 engines with "retry" behaviour.
> > It is maybe the way to go, but I want to ask the question:
> > Would it be possible to have "retry" as an engine parameter?
> > 
> 
> If it's just about the way to write commands there isn't much difference,
> like "set fwd io_rety" and "set fwd io retry".
> 
> Do you mean to add the "retry" for all engines, and also implement this
> as a parameter in each original engine? So for example, no iofwd-retry.c,
> just add this feature inside iofwd.c?

Yes, if it makes sense. For engines other than io_fwd and mac_fwd, the retry
option can be unsupported (return an error) as a first step.