[PATCH] net/mlx5: support matching optional fields of GRE

[Thomas Monjalon]

21/02/2022 04:00, Sean Zhang (Networking SW):
> Hi Thomas,
> 
> > -----Original Message-----
> > From: Thomas Monjalon <thomas at monjalon.net>
> > Sent: Thursday, February 17, 2022 4:34 PM
> > To: Matan Azrad <matan at nvidia.com>; Slava Ovsiienko
> > <viacheslavo at nvidia.com>; Sean Zhang (Networking SW)
> > <xiazhang at nvidia.com>
> > Cc: dev at dpdk.org
> > Subject: Re: [PATCH] net/mlx5: support matching optional fields of GRE
> > 
> > External email: Use caution opening links or attachments
> > 
> > 
> > 17/02/2022 07:27, Sean Zhang:
> > > This patch adds matching on the optional fields
> > > (checksum/key/sequence) of GRE header. The matching on checksum and
> > > sequence fields requests support from rdma-core with the capability of
> > misc5 and tunnel_header 0-3.
> > >
> > > For patterns without checksum and sequence specified, keep using misc
> > > for matching as before, but for patterns with checksum or sequence,
> > > validate capability first and then use misc5 for the matching.
> > >
> > > Signed-off-by: Sean Zhang <xiazhang at nvidia.com>
> > > Acked-by: Slava Ovsiienko <viacheslavo at nvidia.com>
> > >
> > > ---
> > > v3 - some code style change
> > > v2 - replace default mask with nic mask
> > > ---
> > >  doc/guides/nics/mlx5.rst             |  10 +++
> > >  drivers/common/mlx5/mlx5_devx_cmds.c |   3 +
> > >  drivers/net/mlx5/linux/mlx5_os.c     |   2 +
> > >  drivers/net/mlx5/mlx5.h              |   1 +
> > >  drivers/net/mlx5/mlx5_flow.c         | 101
> > +++++++++++++++++++++++++++++
> > >  drivers/net/mlx5/mlx5_flow.h         |   6 ++
> > >  drivers/net/mlx5/mlx5_flow_dv.c      | 121
> > +++++++++++++++++++++++++++++++++++
> > >  7 files changed, 244 insertions(+)
> > 
> > Should we add a line in the release notes?
> > 
> 
> This patch is v3 of the forth patch of patch set: https://patches.dpdk.org/project/dpdk/cover/20220211014530.77711-1-xiazhang@nvidia.com/
> The release notes changed in the second patch of the patch set and applied in v2.
> 
> --- a/doc/guides/rel_notes/release_22_03.rst
> +++ b/doc/guides/rel_notes/release_22_03.rst
> @@ -87,6 +87,11 @@  New Features
>  
>    The new API ``rte_event_eth_rx_adapter_event_port_get()`` was added.
>  
> +* **Added rte_flow support for matching GRE optional fields.**
> +
> +  * Added ``gre_option`` item in rte_flow to support checksum/key/sequence
> +    matching in GRE packets.
> +

OK but it is missing a line for mlx5 features.
I'm adding it while merging.