Hi Ilya,

Thanks for highlighting the Patch.
Replies Inline.

> -----Original Message-----
> From: Ilya Maximets <i.maxim...@ovn.org>
> Sent: Monday, March 21, 2022 10:26 PM
> To: d...@openvswitch.org; Stokes, Ian <ian.sto...@intel.com>; Van Haaren,
> Harry <harry.van.haa...@intel.com>; Ferriter, Cian
> <cian.ferri...@intel.com>; Amber, Kumar <kumar.am...@intel.com>
> Cc: i.maxim...@ovn.org; Toms Atteka <cpp.code...@gmail.com>
> Subject: Re: [ovs-dev] [PATCHv2] IPv6: Add IPv6 extension header support
> 
> On 3/18/22 22:34, Toms Atteka wrote:
> > IPv6 extension headers carry optional internet layer information and
> > are placed between the fixed header and the upper-layer protocol
> > header.
> >
> > This change adds a new OpenFlow field OFPXMT_OFB_IPV6_EXTHDR and
> > packets can be filtered using ipv6_ext flag.
> >
> > Some spacing style issues fixed.
> >
> > Tested-at: https://github.com/TomCodeLV/ovs/actions/runs/504185214
> > Signed-off-by: Toms Atteka <cpp.code...@gmail.com>
> > ---
> >  build-aux/extract-odp-netlink-macros-h        |   1 +
> >  build-aux/extract-ofp-fields                  |   4 +-
> >  datapath/flow.c                               | 192 +++++++++++++++---
> >  datapath/flow.h                               |  14 ++
> >  datapath/flow_netlink.c                       |  25 ++-
> >  .../linux/compat/include/linux/openvswitch.h  |   6 +
> >  include/openvswitch/flow.h                    |   8 +-
> >  include/openvswitch/match.h                   |   2 +
> >  include/openvswitch/meta-flow.h               |  18 ++
> >  lib/dpif-netdev-extract-avx512.c              |   2 +-
> >  lib/flow.c                                    | 188 ++++++++++++++++-
> >  lib/flow.h                                    |   6 +-
> >  lib/match.c                                   |  25 ++-
> >  lib/meta-flow.c                               |  80 +++++++-
> >  lib/meta-flow.xml                             |  14 ++
> >  lib/nx-match.c                                |  13 +-
> >  lib/odp-execute.c                             |   2 +
> >  lib/odp-util.c                                | 111 +++++++++-
> >  lib/odp-util.h                                |  11 +-
> >  lib/ofp-match.c                               |   2 +-
> >  lib/packets.c                                 |  28 +++
> >  lib/packets.h                                 |  12 ++
> >  ofproto/ofproto-dpif-rid.h                    |   2 +-
> >  ofproto/ofproto-dpif-sflow.c                  |   1 +
> >  ofproto/ofproto-dpif-xlate.c                  |   2 +-
> >  ofproto/ofproto-dpif.c                        |  47 +++++
> >  tests/ofproto.at                              |   4 +-
> >  tests/system-traffic.at                       |  31 +++
> >  28 files changed, 789 insertions(+), 62 deletions(-)
> >
> 
> <snip>
> 
> > diff --git a/lib/dpif-netdev-extract-avx512.c
> > b/lib/dpif-netdev-extract-avx512.c
> > index c1c1fefb6..3cbe04ca9 100644
> > --- a/lib/dpif-netdev-extract-avx512.c
> > +++ b/lib/dpif-netdev-extract-avx512.c
> > @@ -289,7 +289,7 @@ BUILD_ASSERT_DECL((OFFSETOFEND(struct
> dp_packet,
> > l4_ofs)  BUILD_ASSERT_DECL(FLOWMAP_UNITS == 2);
> >
> >  /* Ensure the miniflow-struct ABI is the expected version. */
> > -BUILD_ASSERT_DECL(FLOW_WC_SEQ == 42);
> > +BUILD_ASSERT_DECL(FLOW_WC_SEQ == 43);
> >
> >  /* If the above build assert happens, this means that you might need to
> make
> >   * some modifications to the AVX512 miniflow extractor code. In
> > general, the
> 
> Harry, Cian, others,
> 
> This patch requires some changes in the avx512 miniflow_extract
> implementation, due to changes in the layout of the struct flow.
> 
> Could you, please, assist with providing necessary adjustments?
> 

I am currently looking form the AVX512 side we do need some changes to align 
with the ABI changes in mf.

Regards
Amber
> Best regards, Ilya Maximets.
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