netdev - Re: [PATCH net-next 00/18] mlxsw: spectrum_router: Add GRE tunnel support for Spectrum-2

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Date:   Sun, 20 Jan 2019 11:15:05 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     idosch@...lanox.com
Cc:     netdev@...r.kernel.org, jiri@...lanox.com, nird@...lanox.com,
        mlxsw@...lanox.com
Subject: Re: [PATCH net-next 00/18] mlxsw: spectrum_router: Add GRE tunnel
 support for Spectrum-2

From: Ido Schimmel <idosch@...lanox.com>
Date: Sun, 20 Jan 2019 06:50:38 +0000

> Nir says:
> 
> In Spectrum-2, HW implementation of layer 3 tunnels differs from
> Spectrum-1 when it comes to the underlay routing table selection.
> Spectrum-2 uses a dedicated RIF that points to the virtual router used
> for forwarding the encapsulated packets, while Spectrum-1 explicitly
> specifies the virtual router itself.
> 
> Patches #1 and #2 add additional fields in RITR - Router interface table
> register and RTDP - Routing tunnel decap properties respectively, the
> fields are required for the new underlay RIF needed for Spectrum-2.
> 
> Patches #3-4 allow different set of RIF operations per ASIC type. The
> first patch splits the operations and the following patch sets RIF ops
> according to ASIC type.
> 
> Patches #5-9 introduce small changes to existing code to allow existence
> of a dedicated underlay RIF along with the underlay virtual router, and
> to support that new type of RIF that has no device.
> 
> Patch #10 takes care of updating the tunnel decap properties egress
> underlay RIF required for Spectrum-2.
> 
> Patch #11 adds the implementation of Spectrum-2 specific RIF operations
> and essentially enables layer 3 GRE tunnels on Spectrum-2.
> 
> Finally patches #12-18 add tests for GRE IP-in-IP tunnels, both in flat
> and hierarchical topologies.

As usual, another clean and nice patch series (with selftests!) from you
guys.

Series applied, thanks!