Hello everyone, This is a driver for the Qualcomm IPQ4019 Ethernet Switch Subsystem. The IPQ4019 SoC integrates a modified version of the QCA8K Ethernet switch. One major difference with the original switch IP is that port tags are passed to the integrated Ethernet controller out-of-band. My colleague Maxime Chevallier submitted several iterations of this driver about a year ago, here is the latest one: https://lore.kernel.org/netdev/20221104174151.439008-1-maxime.chevallier@xxxxxxxxxxx/ These series were rejected because they required adding out-of-band tagging support to the DSA subsystem. Therefore, we rewrote the driver as a pure switchdev module, which shares a common backend library with the current QCA8K driver. The main driver components are: - ipqess_switch.c which registers and configures the integrated switch - ipqess_port.c which creates net devices for each one of the front-facing ports. - ipqess_edma.c which handles the integrated EDMA Ethernet controller linked to the CPU port. - drivers/net/dsa/qca/qca8k-common.c which defines low-level ESS access methods common to this driver and the original DSA QCA8K driver. Thanks to the people from Sartura for providing us hardware and working on the base QCA8K driver, and to Maxime for his work on the EDMA code. Best regards, Romain Romain Gantois (5): net: dt-bindings: Introduce the Qualcomm IPQESS Ethernet switch net: dsa: qca: Make the QCA8K hardware library available globally net: ipqess: introduce the Qualcomm IPQESS driver net: ipqess: add a PSGMII calibration procedure to the IPQESS driver dts: qcom: ipq4019: Add description for the IPQ4019 ESS EDMA and switch .../bindings/net/qcom,ipq4019-ess.yaml | 152 ++ MAINTAINERS | 7 + .../boot/dts/qcom/qcom-ipq4018-ap120c-ac.dtsi | 13 + arch/arm/boot/dts/qcom/qcom-ipq4019.dtsi | 94 + drivers/net/dsa/qca/Kconfig | 10 + drivers/net/dsa/qca/Makefile | 5 +- drivers/net/dsa/qca/qca8k-8xxx.c | 2 +- drivers/net/dsa/qca/qca8k-common.c | 97 +- drivers/net/dsa/qca/qca8k-leds.c | 2 +- drivers/net/ethernet/qualcomm/Kconfig | 14 + drivers/net/ethernet/qualcomm/Makefile | 2 + drivers/net/ethernet/qualcomm/ipqess/Makefile | 8 + .../ethernet/qualcomm/ipqess/ipqess_calib.c | 495 ++++ .../ethernet/qualcomm/ipqess/ipqess_edma.c | 1162 ++++++++++ .../ethernet/qualcomm/ipqess/ipqess_edma.h | 484 ++++ .../qualcomm/ipqess/ipqess_notifiers.c | 306 +++ .../qualcomm/ipqess/ipqess_notifiers.h | 29 + .../ethernet/qualcomm/ipqess/ipqess_port.c | 2017 +++++++++++++++++ .../ethernet/qualcomm/ipqess/ipqess_port.h | 99 + .../ethernet/qualcomm/ipqess/ipqess_switch.c | 559 +++++ .../ethernet/qualcomm/ipqess/ipqess_switch.h | 40 + .../net/dsa/qca => include/linux/dsa}/qca8k.h | 74 +- 22 files changed, 5648 insertions(+), 23 deletions(-) create mode 100644 Documentation/devicetree/bindings/net/qcom,ipq4019-ess.yaml create mode 100644 drivers/net/ethernet/qualcomm/ipqess/Makefile create mode 100644 drivers/net/ethernet/qualcomm/ipqess/ipqess_calib.c create mode 100644 drivers/net/ethernet/qualcomm/ipqess/ipqess_edma.c create mode 100644 drivers/net/ethernet/qualcomm/ipqess/ipqess_edma.h create mode 100644 drivers/net/ethernet/qualcomm/ipqess/ipqess_notifiers.c create mode 100644 drivers/net/ethernet/qualcomm/ipqess/ipqess_notifiers.h create mode 100644 drivers/net/ethernet/qualcomm/ipqess/ipqess_port.c create mode 100644 drivers/net/ethernet/qualcomm/ipqess/ipqess_port.h create mode 100644 drivers/net/ethernet/qualcomm/ipqess/ipqess_switch.c create mode 100644 drivers/net/ethernet/qualcomm/ipqess/ipqess_switch.h rename {drivers/net/dsa/qca => include/linux/dsa}/qca8k.h (87%) -- 2.42.0
