[PATCH v3] Add support for IBM Z s390x

[David Miller]

It looks like this is still from v2, v3 (fixes the build issue,
missing operator) was submit the same day..
The abi-test failure referenced is present on v3 (which the bot has
only accepted today).
Patch v4 will be split as requested.

Thanks.
  - David Miller

On Wed, Aug 2, 2023 at 10:34 AM David Miller <dmiller423 at gmail.com> wrote:
>
> Hello,
>
>    I'm happy to split it,  I will resubmit when these changes are made.
> I was planning to spend some time to figure out why the CI abi test is
> failing / it had previously passed all tests locally.
> The (one) long term maintainer will be Mathew S Thoennes <tardis at us.ibm.com>.
> I will relay your concerns about CI and have him speak with David Christensen.
>
>   - David Miller
>
> On Wed, Aug 2, 2023 at 10:25 AM David Marchand
> <david.marchand at redhat.com> wrote:
> >
> > Hello David,
> >
> > On Wed, Jul 26, 2023 at 3:35 AM David Miller <dmiller423 at gmail.com> wrote:
> > >
> > > Minimal changes to drivers and app to support the IBM s390x.
> >
> > This seems a bit more than "minimal changes" :-).
> >
> > >
> > > Signed-off-by: David Miller <dmiller423 at gmail.com>
> > > Reviewed-by: Mathew S Thoennes <tardis at us.ibm.com>
> > > ---
> > >  app/test-acl/main.c                          |   4 +
> > >  app/test/test_acl.c                          |   1 +
> > >  app/test/test_atomic.c                       |   7 +-
> > >  app/test/test_cmdline_ipaddr.c               |  12 +-
> > >  app/test/test_cmdline_num.c                  | 110 ++++
> > >  app/test/test_hash_functions.c               |  29 +
> > >  app/test/test_xmmt_ops.h                     |  14 +
> > >  buildtools/pmdinfogen.py                     |  11 +-
> > >  config/meson.build                           |   2 +
> > >  config/s390x/meson.build                     |  51 ++
> > >  config/s390x/s390x_linux_clang_ubuntu        |  19 +
> > >  doc/guides/nics/features/i40e.ini            |   1 +
> > >  drivers/common/mlx5/mlx5_common.h            |   9 +
> > >  drivers/net/i40e/i40e_rxtx_vec_s390x.c       | 630 +++++++++++++++++++
> > >  drivers/net/i40e/meson.build                 |   2 +
> > >  drivers/net/ixgbe/ixgbe_rxtx.c               |   8 +-
> > >  drivers/net/memif/rte_eth_memif.h            |   2 +
> > >  drivers/net/mlx5/mlx5_rx.c                   |  24 +-
> > >  drivers/net/octeontx/base/octeontx_pki_var.h |   6 +
> > >  examples/l3fwd/l3fwd_em.c                    |   8 +
> > >  examples/l3fwd/l3fwd_lpm_s390x.h             | 137 ++++
> > >  examples/l3fwd/l3fwd_s390x.h                 | 261 ++++++++
> > >  lib/acl/acl_bld.c                            |   3 +
> > >  lib/acl/acl_gen.c                            |   9 +
> > >  lib/acl/acl_run_scalar.c                     |   8 +
> > >  lib/acl/rte_acl.c                            |  27 +
> > >  lib/acl/rte_acl.h                            |   5 +-
> > >  lib/eal/s390x/include/meson.build            |  16 +
> > >  lib/eal/s390x/include/rte_atomic.h           |  44 ++
> > >  lib/eal/s390x/include/rte_byteorder.h        |  43 ++
> > >  lib/eal/s390x/include/rte_cpuflags.h         |  41 ++
> > >  lib/eal/s390x/include/rte_cycles.h           |  44 ++
> > >  lib/eal/s390x/include/rte_io.h               | 184 ++++++
> > >  lib/eal/s390x/include/rte_mcslock.h          |  18 +
> > >  lib/eal/s390x/include/rte_memcpy.h           |  55 ++
> > >  lib/eal/s390x/include/rte_pause.h            |  22 +
> > >  lib/eal/s390x/include/rte_power_intrinsics.h |  20 +
> > >  lib/eal/s390x/include/rte_prefetch.h         |  46 ++
> > >  lib/eal/s390x/include/rte_rwlock.h           |  42 ++
> > >  lib/eal/s390x/include/rte_spinlock.h         |  85 +++
> > >  lib/eal/s390x/include/rte_ticketlock.h       |  18 +
> > >  lib/eal/s390x/include/rte_vect.h             |  35 ++
> > >  lib/eal/s390x/meson.build                    |  16 +
> > >  lib/eal/s390x/rte_cpuflags.c                 |  91 +++
> > >  lib/eal/s390x/rte_cycles.c                   |  11 +
> > >  lib/eal/s390x/rte_hypervisor.c               |  11 +
> > >  lib/eal/s390x/rte_power_intrinsics.c         |  51 ++
> > >  lib/hash/rte_fbk_hash.h                      |   7 +
> > >  lib/lpm/meson.build                          |   1 +
> > >  lib/lpm/rte_lpm.h                            |   2 +
> > >  lib/lpm/rte_lpm6.c                           |  18 +
> > >  lib/lpm/rte_lpm_s390x.h                      | 130 ++++
> > >  meson.build                                  |   2 +
> > >  53 files changed, 2439 insertions(+), 14 deletions(-)
> >
> > - This is too big to review.
> > Please split this patch separating the really minimum support (getting
> > EAL and main libraries to build, disabling the rest that is "broken"
> > for s390x) then adding more components support in later patches.
> >
> > RISC V and LoongArch "recent" additions are good examples.
> > https://patchwork.dpdk.org/project/dpdk/list/?series=23380&state=%2A&archive=both
> > https://patchwork.dpdk.org/project/dpdk/list/?series=24969&state=%2A&archive=both
> >
> > - We need one maintainer for this new architecture.
> >
> > - You'll notice that the DPDK CI reported issues, please fix them.
> >
> > - What are the plans in terms of CI? We need some compilation testing
> > and ideally some regular runtime testing.
> > Maybe you can reach out to IBM PPC DPDK guys, like David Christensen,
> > to see what they are doing.
> >
> >
> > --
> > David Marchand
> >