On Fri, Nov 8, 2019 at 7:24 PM Ananyev, Konstantin
<konstantin.anan...@intel.com> wrote:
>
>
>
> > -----Original Message-----
> > From: dev <dev-boun...@dpdk.org> On Behalf Of Ferruh Yigit
> > Sent: Thursday, November 7, 2019 7:41 PM
> > To: Jerin Jacob <jerinjac...@gmail.com>
> > Cc: Pavan Nikhilesh <pbhagavat...@marvell.com>; Andrew Rybchenko 
> > <arybche...@solarflare.com>; jer...@marvell.com;
> > tho...@monjalon.net; Lu, Wenzhuo <wenzhuo...@intel.com>; Wu, Jingjing 
> > <jingjing...@intel.com>; Iremonger, Bernard
> > <bernard.iremon...@intel.com>; Mcnamara, John <john.mcnam...@intel.com>; 
> > Kovacevic, Marko <marko.kovace...@intel.com>;
> > dev@dpdk.org
> > Subject: Re: [dpdk-dev] [PATCH v16 8/8] app/testpmd: add command to set 
> > supported ptype mask
> >
> > On 11/7/2019 6:55 PM, Jerin Jacob wrote:
> > >
> > >
> > > On Fri, 8 Nov, 2019, 12:10 am Ferruh Yigit, <ferruh.yi...@intel.com
> > > <mailto:ferruh.yi...@intel.com>> wrote:
> > >
> > >     On 11/6/2019 7:18 PM, pbhagavat...@marvell.com
> > >     <mailto:pbhagavat...@marvell.com> wrote:
> > >     > From: Pavan Nikhilesh <pbhagavat...@marvell.com
> > >     <mailto:pbhagavat...@marvell.com>>
> > >     >
> > >     > Add command to set supported ptype mask.
> > >     > Usage:
> > >     >       set port <port_id> ptype_mask >  /* ***************
> > >     >
> > >     >  /* list of instructions */
> > >     > @@ -19155,6 +19237,7 @@ cmdline_parse_ctx_t main_ctx[] = {
> > >     >       (cmdline_parse_inst_t *)&cmd_show_vf_stats,
> > >     >       (cmdline_parse_inst_t *)&cmd_clear_vf_stats,
> > >     >       (cmdline_parse_inst_t *)&cmd_show_port_supported_ptypes,
> > >     > +     (cmdline_parse_inst_t *)&cmd_set_port_ptypes,
> > >     >       (cmdline_parse_inst_t *)&cmd_ptype_mapping_get,
> > >     >       (cmdline_parse_inst_t *)&cmd_ptype_mapping_replace,
> > >     >       (cmdline_parse_inst_t *)&cmd_ptype_mapping_reset,
> > >     > diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
> > >     > index 5ba974162..812aebf35 100644
> > >     > --- a/app/test-pmd/testpmd.c
> > >     > +++ b/app/test-pmd/testpmd.c
> > >     > @@ -2024,6 +2024,7 @@ start_port(portid_t pid)
> > >     >       queueid_t qi;
> > >     >       struct rte_port *port;
> > >     >       struct rte_ether_addr mac_addr;
> > >     > +     static uint8_t clr_ptypes = 1;
> > >     >
> > >     >       if (port_id_is_invalid(pid, ENABLED_WARN))
> > >     >               return 0;
> > >     > @@ -2153,6 +2154,10 @@ start_port(portid_t pid)
> > >     >                       }
> > >     >               }
> > >     >               configure_rxtx_dump_callbacks(verbose_level);
> > >     > +             if (clr_ptypes) {
> > >     > +                     clr_ptypes = 0;
> > >     > +                     rte_eth_dev_set_ptypes(pi, RTE_PTYPE_UNKNOWN, 
> > > NULL, 0);
> > >     > +             }
> > >
> > >     I am not sure about this command, we have now capability to 
> > > set/disable ptypes
> > >     on demand, why disabling them by default?
> > >
> > >
> > > As forward engines are not using the ptype offload. If a specific forward 
> > > mode
> > > need the offload, it can be enabled.
>
> Well, at least now user can see ptype in pkt dump with 'set verbose > 0'
> It's definitely looks loke a a behavior change.
> Wonder why it can't be done visa-versa?
> Keep current behavior as default one (all ptypes are un-masked) and
> have special command to disable/enable ptypes.
> as I understand such command was added by these series. correct?

IMO, we are following the principle that by default all offloads are
disabled and enable it
based on the need to have optimal performance across the DPDK. This
change will be
on the same theme.

Regarding the verbose > 0 cases, I think, we can call
rte_eth_dev_set_ptypes() to all PTYPES on
the setting verbose callback.

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