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

Denis Kirjanov
2021-11-03T10:46:41Z

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
>