Re: [dpdk-dev] [PATCH] net/bnxt: fix packet type

[Olivier Matz <olivier.matz@6wind.com>]

Hi,

On Tue, Feb 06, 2018 at 03:23:34PM -0800, Ajit Khaparde wrote:
> On Tue, Feb 6, 2018 at 9:07 AM, Olivier Matz <olivier.matz@6wind.com> wrote:
> 
> > The hw flags are not read correctly: the defines
> > RX_PKT_CMPL_FLAGS_ITYPE_* are not bits but values, so the should not be
> > tested with if (value & X) but with if ((value & MASK) == X).
> > This was resulting in a wrong packet type.
> >
> > For instance, an IPv4/ICMP packet was returning a value of 7 for
> > the layer 4, which is undefined.
> >
> > This patch rework the way packet types are processed, to ensure
> > that only valid packet types will be advertised.
> >
> > Fixes: 3d2a6644eb05 ("net/bnxt: support getting ptypes")
> > Cc: stable@dpdk.org
> >
> > Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
> >
> ​Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
> ​

[...]

> > +       case RTE_LE32(RX_PKT_CMPL_FLAGS_ITYPE_UDP):
> > +               if (!t_ipcs)
> > +                       pkt_type |= l3 | RTE_PTYPE_L4_UDP;
> > +               else
> > +                       pkt_type |= l3 | RTE_PTYPE_INNER_L4_UDP;
> > +               break;
> > +
> > +       case RTE_LE32(RX_PKT_CMPL_FLAGS_ITYPE_IP):
> > +               if (!t_ipcs)
> > +                       pkt_type |= l3 | RTE_PTYPE_L4_ICMP;
> > +               else
> > +                       pkt_type |= l3 | RTE_PTYPE_INNER_L4_ICMP;
> > +               break;
> > +       }

Sorry, it looks there is a typo here: it should be pkt_type |= l3
(not ICMP). I'll send a new version.