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. ------------------ Changes in V3: - Add timeouts for hardware registers read - Add cleanup path in fdma_init - Rework injection and extraction to used ring like structure - Added PTP support to FDMA - Use pskb_expand_head instead of skb_copy_expand in xmit - Drop jumbo support - Use of_get_ethdev_address - Add ocelot_fdma_netdev_init/deinit 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 (4): dt-bindings: net: mscc,vsc7514-switch: convert txt bindings to yaml net: ocelot: add support to get port mac from device-tree net: ocelot: pre-compute injection frame header content net: ocelot: add FDMA support .../bindings/net/mscc,vsc7514-switch.yaml | 191 +++++ .../devicetree/bindings/net/mscc-ocelot.txt | 83 -- drivers/net/ethernet/mscc/Makefile | 1 + drivers/net/ethernet/mscc/ocelot.c | 66 +- drivers/net/ethernet/mscc/ocelot.h | 1 + drivers/net/ethernet/mscc/ocelot_fdma.c | 713 ++++++++++++++++++ drivers/net/ethernet/mscc/ocelot_fdma.h | 96 +++ drivers/net/ethernet/mscc/ocelot_net.c | 23 +- drivers/net/ethernet/mscc/ocelot_vsc7514.c | 13 + include/soc/mscc/ocelot.h | 9 + 10 files changed, 1087 insertions(+), 109 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 -- 2.33.1
