[dpdk-dev] [EXT] [PATCH v3 5/5] crypto/mlx5: support on Windows

[Tal Shnaiderman]

> Subject: RE: [EXT] [PATCH v3 5/5] crypto/mlx5: support on Windows
> 
> External email: Use caution opening links or attachments
> 
> 
> > Add support for mlx5 crypto pmd on Windows OS.
> > Add changes to release note and pmd guide.
> >
> > Signed-off-by: Tal Shnaiderman <talshn at nvidia.com>
> > Acked-by: Matan Azrad <matan at nvidia.com>
> > ---
> >  doc/guides/cryptodevs/mlx5.rst               | 15 ++++++++++++---
> >  doc/guides/rel_notes/release_21_11.rst       |  1 +
> >  drivers/common/mlx5/version.map              |  2 +-
> >  drivers/common/mlx5/windows/mlx5_common_os.c |  2 +-
> >  drivers/crypto/mlx5/meson.build              |  4 ++--
> >  5 files changed, 17 insertions(+), 7 deletions(-)
> >
> > diff --git a/doc/guides/cryptodevs/mlx5.rst
> > b/doc/guides/cryptodevs/mlx5.rst index 68bfdf3a83..7338c0c493 100644
> > --- a/doc/guides/cryptodevs/mlx5.rst
> > +++ b/doc/guides/cryptodevs/mlx5.rst
> > @@ -39,12 +39,12 @@ or to access the hardware components directly.
> >  There are different levels of objects and bypassing abilities.
> >  To get the best performances:
> >
> > -- Verbs is a complete high-level generic API.
> > -- Direct Verbs is a device-specific API.
> > +- Verbs is a complete high-level generic API (Linux only).
> > +- Direct Verbs is a device-specific API (Linux only).
> >  - DevX allows to access firmware objects.
> >
> >  Enabling ``librte_crypto_mlx5`` causes DPDK applications -to be
> > linked against libibverbs.
> > +to be linked against libibverbs on Linux OS.
> >
> >  In order to move the device to crypto operational mode, credential
> > and KEK  (Key Encrypting Key) should be set as the first step.
> > @@ -155,8 +155,17 @@ Limitations
> >  Prerequisites
> >  -------------
> >
> > +Linux Prerequisites
> > +~~~~~~~~~~~~~~~~~~~
> > +
> >  - Mellanox OFED version: **5.3**
> >    see :doc:`../../nics/mlx5` guide for more Mellanox OFED details.
> >
> >  - Compilation can be done also with rdma-core v15+.
> >    see :doc:`../../nics/mlx5` guide for more rdma-core details.
> > +
> > +Windows Prerequisites
> > +~~~~~~~~~~~~~~~~~~~~~
> > +
> > +- Mellanox WINOF-2 version: **2.60** or higher.
> > +  see :doc:`../../nics/mlx5` guide for more Mellanox WINOF-2 details.
> 
> I do not see a way to cross compile this driver with MinGW. How are we
> expected to Test compilation for such cases? Do we need to build it over
> Windows? I personally don't Think it is a good idea.
> 
> Others please suggest.

Yes, this driver can be built only using clang on Windows, net/mlx5 behaves the same way.

DPDK CI has a compilation test for Windows [1], it will fail if a patch is introduced that caused compilation to fail on Windows.

[1] https://lab.dpdk.org/results/dashboard/patchsets/19686/