Hi Grygorii, On 19/03/2020 18.27, Grygorii Strashko wrote: > Hi > > This v5 series adds basic networking support support TI K3 AM654x/J721E SoC which > have integrated Gigabit Ethernet MAC (Media Access Controller) into device MCU > domain and named MCU_CPSW0 (CPSW2G NUSS). > > Formally TRMs refer CPSW2G NUSS as two-port Gigabit Ethernet Switch subsystem > with port 0 being the CPPI DMA host port and port 1 being the external Ethernet > port, but for 1 external port device it's just Port 0 <-> ALE <-> Port 1 and it's > rather device with HW filtering capabilities then actually switching device. > It's expected to have similar devices, but with more external ports. > > The new Host port 0 Communications Port Programming Interface (CPPI5) is > operating by TI AM654x/J721E NAVSS Unified DMA Peripheral Root Complex (UDMA-P) > controller [1]. > > The CPSW2G contains below modules for which existing code is re-used: > - MAC SL: cpsw_sl.c > - Address Lookup Engine (ALE): cpsw_ale.c, basically compatible with K2 66AK2E/G > - Management Data Input/Output interface (MDIO): davinci_mdio.c, fully > compatible with TI AM3/4/5 devices > > Basic features supported by CPSW2G NUSS driver: > - VLAN support, 802.1Q compliant, Auto add port VLAN for untagged frames on > ingress, Auto VLAN removal on egress and auto pad to minimum frame size. > - multicast filtering > - promisc mode > - TX multiq support in Round Robin or Fixed priority modes > - RX checksum offload for non-fragmented IPv4/IPv6 TCP/UDP packets > - TX checksum offload support for IPv4/IPv6 TCP/UDP packets (J721E only). > > Features under development: > - Support for IEEE 1588 Clock Synchronization. The CPSW2G NUSS includes new > version of Common Platform Time Sync (CPTS) > - tc-mqprio: priority level Quality Of Service (QOS) support (802.1p) > - tc-cbs: Support for Audio/Video Bridging (P802.1Qav/D6.0) HW shapers > - tc-taprio: IEEE 802.1Qbv/D2.2 Enhancements for Scheduled Traffic > - frame preemption: IEEE P902.3br/D2.0 Interspersing Express Traffic, 802.1Qbu > - extended ALE features: classifier/policers, auto-aging > > Patches 1-6 are intended for netdev, Patches 7-11 are intended for K3 Platform > tree and provided here for testing purposes. Needed to pick two patches: arm64: dts: ti: k3-j721e-mcu: add scm node and phy-gmii-sel nodes arm64: dts: ti: k3-am65-mcu: add phy-gmii-sel node With those applied, NFS rootfs is working on top of linux-next, pretty cool! Tested-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx> > Changes in v5: > - renamed files k3-udma-desc-pool.* k3-udma-desc-pool to k3-cppi-desc-pool.*, > and API to k3_cppi_desc_pool_* as requested by Peter Ujfalusi <peter.ujfalusi@xxxxxx> > - fixed copy-paste err in am65_cpsw_nuss_ndo_slave_set_rx_mode() which blocked > recieving of mcast frames. > - added Tested-by: Murali Karicheri <m-karicheri2@xxxxxx> > > Changes in v4: > - fixed minor comments from Jakub Kicinski <kuba@xxxxxxxxxx> > - dependencies resolved: required phy-rmii-sel changes [2] queued for merge > except one [3] which is included in this series with Kishon's ask. > > Changes in v3: > - add ARM64 defconfig changes for testing purposes > - fixed DT yaml definition > - fixed comments from Jakub Kicinski <kuba@xxxxxxxxxx> > > Changes in v2: > - fixed DT yaml definition > - fixed comments from David Miller > > v4: https://patchwork.ozlabs.org/cover/1256092/ > v3: https://patchwork.ozlabs.org/cover/1254568/ > v2: https://patchwork.ozlabs.org/cover/1250674/ > v1: https://lwn.net/Articles/813087/ > > TRMs: > AM654: http://www.ti.com/lit/ug/spruid7e/spruid7e.pdf > J721E: http://www.ti.com/lit/ug/spruil1a/spruil1a.pdf > > Preliminary documentation can be found at: > http://software-dl.ti.com/processor-sdk-linux/esd/docs/latest/linux/Foundational_Components/Kernel/Kernel_Drivers/Network/K3_CPSW2g.html > > [1] https://lwn.net/Articles/808030/ > [2] https://lkml.org/lkml/2020/2/22/100 > [3] https://lkml.org/lkml/2020/3/3/724 > Grygorii Strashko (11): > phy: ti: gmii-sel: simplify config dependencies between net drivers > and gmii phy > net: ethernet: ti: ale: fix seeing unreg mcast packets with promisc > and allmulti disabled > net: ethernet: ti: ale: add support for mac-only mode > net: ethernet: ti: ale: am65: add support for default thread cfg > dt-binding: ti: am65x: document mcu cpsw nuss > net: ethernet: ti: introduce am65x/j721e gigabit eth subsystem driver > arm64: dts: ti: k3-am65-mcu: add cpsw nuss node > arm64: dts: k3-am654-base-board: add mcu cpsw nuss pinmux and phy defs > arm64: dts: ti: k3-j721e-mcu: add mcu cpsw nuss node > arm64: dts: ti: k3-j721e-common-proc-board: add mcu cpsw nuss pinmux > and phy defs > arm64: defconfig: ti: k3: enable dma and networking > > .../bindings/net/ti,k3-am654-cpsw-nuss.yaml | 226 ++ > arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi | 49 + > arch/arm64/boot/dts/ti/k3-am65.dtsi | 1 + > .../arm64/boot/dts/ti/k3-am654-base-board.dts | 42 + > .../dts/ti/k3-j721e-common-proc-board.dts | 43 + > .../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi | 49 + > arch/arm64/boot/dts/ti/k3-j721e.dtsi | 1 + > arch/arm64/configs/defconfig | 3 + > drivers/net/ethernet/ti/Kconfig | 20 +- > drivers/net/ethernet/ti/Makefile | 3 + > drivers/net/ethernet/ti/am65-cpsw-ethtool.c | 747 +++++++ > drivers/net/ethernet/ti/am65-cpsw-nuss.c | 1965 +++++++++++++++++ > drivers/net/ethernet/ti/am65-cpsw-nuss.h | 142 ++ > drivers/net/ethernet/ti/cpsw_ale.c | 38 + > drivers/net/ethernet/ti/cpsw_ale.h | 4 + > drivers/net/ethernet/ti/k3-cppi-desc-pool.c | 126 ++ > drivers/net/ethernet/ti/k3-cppi-desc-pool.h | 30 + > drivers/phy/ti/Kconfig | 3 - > 18 files changed, 3487 insertions(+), 5 deletions(-) > create mode 100644 Documentation/devicetree/bindings/net/ti,k3-am654-cpsw-nuss.yaml > create mode 100644 drivers/net/ethernet/ti/am65-cpsw-ethtool.c > create mode 100644 drivers/net/ethernet/ti/am65-cpsw-nuss.c > create mode 100644 drivers/net/ethernet/ti/am65-cpsw-nuss.h > create mode 100644 drivers/net/ethernet/ti/k3-cppi-desc-pool.c > create mode 100644 drivers/net/ethernet/ti/k3-cppi-desc-pool.h > - Péter Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. 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