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From: Suanming Mou <suanmingm@nvidia.com>
To: Bing Zhao <bingz@nvidia.com>, Dariusz Sosnowski <dsosnowski@nvidia.com>,
 Slava Ovsiienko <viacheslavo@nvidia.com>, Ori Kam <orika@nvidia.com>, Matan
 Azrad <matan@nvidia.com>
CC: "dev@dpdk.org" <dev@dpdk.org>, "stable@dpdk.org" <stable@dpdk.org>
Subject: RE: [PATCH] doc: update match with compare result item limitation
Thread-Topic: [PATCH] doc: update match with compare result item limitation
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Date: Wed, 6 Nov 2024 09:01:20 +0000
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> -----Original Message-----
> From: Bing Zhao <bingz@nvidia.com>
> Sent: Tuesday, November 5, 2024 11:48 AM
> To: Suanming Mou <suanmingm@nvidia.com>; Dariusz Sosnowski
> <dsosnowski@nvidia.com>; Slava Ovsiienko <viacheslavo@nvidia.com>; Ori Ka=
m
> <orika@nvidia.com>; Matan Azrad <matan@nvidia.com>
> Cc: dev@dpdk.org; stable@dpdk.org
> Subject: RE: [PATCH] doc: update match with compare result item limitatio=
n
>=20
> The ` repr_matching_en ` flag is enabled (by default) can be added.

OK, let's update a new version.

>=20
> > -----Original Message-----
> > From: Suanming Mou <suanmingm@nvidia.com>
> > Sent: Tuesday, November 5, 2024 9:48 AM
> > To: Dariusz Sosnowski <dsosnowski@nvidia.com>; Slava Ovsiienko
> > <viacheslavo@nvidia.com>; Bing Zhao <bingz@nvidia.com>; Ori Kam
> > <orika@nvidia.com>; Matan Azrad <matan@nvidia.com>
> > Cc: dev@dpdk.org; stable@dpdk.org
> > Subject: [PATCH] doc: update match with compare result item limitation
> >
> > In switch mode, when ``repr_matching_en`` flag is enabled in the
> > devarg, the match with compare result item is not supported to the
> > ``ingress`` rule as an implicit REPRESENTED_PORT need to be added to th=
e
> matcher.
> > That REPRESENTED_PORT item conflicts with the single item limitation
> > for match with compare result item.
> >
> > Fixes: cb25df7ce9d6 ("net/mlx5: support comparison matching")
> > Cc: stable@dpdk.org
> >
> > Signed-off-by: Suanming Mou <suanmingm@nvidia.com>
> > ---
> >  doc/guides/nics/mlx5.rst | 5 +++++
> >  1 file changed, 5 insertions(+)
> >
> > diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst index
> > 7ced6ca8f9..43ae9070ab 100644
> > --- a/doc/guides/nics/mlx5.rst
> > +++ b/doc/guides/nics/mlx5.rst
> > @@ -460,6 +460,11 @@ Limitations
> >    - The field type ``RTE_FLOW_FIELD_VALUE`` must be the base (``b``)
> > field.
> >    - The field type ``RTE_FLOW_FIELD_RANDOM`` can only be compared
> with
> >      ``RTE_FLOW_FIELD_VALUE``.
> > +  - In switch mode, when ``repr_matching_en`` flag is enabled in the
> > devarg,
> > +    the match with compare result item is not supported to the
> > ``ingress``
> > +    rule as an implicit REPRESENTED_PORT need to be added to the
> matcher.
> > +    That REPRESENTED_PORT item conflicts with the single item
> > + limitation
> > for
> > +    match with compare result item.
> >
> >  - No Tx metadata go to the E-Switch steering domain for the Flow group=
 0.
> >    The flows within group 0 and set metadata action are rejected by
> > hardware.
> > --
> > 2.34.1