linux-kernel - Re: [PATCH v2 0/6] Add FDMA support on ocelot switch driver

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Message-ID: <3e7b8321-c93c-5afe-8cbd-977333763888@suse.de>
Date:   Wed, 3 Nov 2021 13:46:36 +0300
From:   Denis Kirjanov <dkirjanov@...e.de>
To:     Clément Léger <clement.leger@...tlin.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Vladimir Oltean <vladimir.oltean@....com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        UNGLinuxDriver@...rochip.com, Andrew Lunn <andrew@...n.ch>
Cc:     netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v2 0/6] Add FDMA support on ocelot switch driver



11/3/21 12:19 PM, Clément Léger пишет:
> This series adds support for the Frame DMA present on the VSC7514
> switch. The FDMA is able to extract and inject packets on the various
> ethernet interfaces present on the switch.
> 
> While adding FDMA support, bindings were switched from .txt to .yaml
> and MAC address reading from device-tree was added for testing
> purposes. Jumbo frame support was also added since it gives a large
> performance improvement with FDMA.

The series should be prefixed with net-next

> 
> ------------------
> Changes in V2:
> - Read MAC for each port and not as switch base MAC address
> - Add missing static for some functions in ocelot_fdma.c
> - Split change_mtu from fdma commit
> - Add jumbo support for register based xmit
> - Move precomputed header into ocelot_port struct
> - Remove use of QUIRK_ENDIAN_LITTLE due to misconfiguration for tests
> - Remove fragmented packet sending which has not been tested
> 
> Clément Léger (6):
>    net: ocelot: add support to get port mac from device-tree
>    dt-bindings: net: convert mscc,vsc7514-switch bindings to yaml
>    net: ocelot: pre-compute injection frame header content
>    net: ocelot: add support for ndo_change_mtu
>    net: ocelot: add FDMA support
>    net: ocelot: add jumbo frame support for FDMA
> 
>   .../bindings/net/mscc,vsc7514-switch.yaml     | 184 +++++
>   .../devicetree/bindings/net/mscc-ocelot.txt   |  83 --
>   drivers/net/ethernet/mscc/Makefile            |   1 +
>   drivers/net/ethernet/mscc/ocelot.c            |  23 +-
>   drivers/net/ethernet/mscc/ocelot.h            |   3 +
>   drivers/net/ethernet/mscc/ocelot_fdma.c       | 754 ++++++++++++++++++
>   drivers/net/ethernet/mscc/ocelot_fdma.h       |  60 ++
>   drivers/net/ethernet/mscc/ocelot_net.c        |  37 +-
>   drivers/net/ethernet/mscc/ocelot_vsc7514.c    |  15 +
>   include/soc/mscc/ocelot.h                     |   7 +
>   10 files changed, 1075 insertions(+), 92 deletions(-)
>   create mode 100644 Documentation/devicetree/bindings/net/mscc,vsc7514-switch.yaml
>   delete mode 100644 Documentation/devicetree/bindings/net/mscc-ocelot.txt
>   create mode 100644 drivers/net/ethernet/mscc/ocelot_fdma.c
>   create mode 100644 drivers/net/ethernet/mscc/ocelot_fdma.h
>