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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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d00f779eb0
Provide platform support for Nvidia (DPU) Data Processor Unit for the Smart Switch SN4280. The Smart Switch equipped with: - Nvidia COME module based on AMD EPYC™ Embedded 3451 CPU. - Nvidia Spectrum-3 ASIC. - Four DPUs, each equipped with Nvidia BF3 ARM based processor and with Lattice LFD2NX-40 FPGA device. - 28xQSFP-DD external ports. - Two power supplies. - Four cooling drawers. Driver provides support for the platform management and monitoring of DPU components. It includes support for: health events, resets and boot progress indications logic, implemented by FPGA device. Reviewed-by: Ciju Rajan K <crajank@nvidia.com> Signed-off-by: Vadim Pasternak <vadimp@nvidia.com> [ij: added depends on I2C] Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20250421092051.7687-2-vadimp@nvidia.com Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
125 lines
4.4 KiB
Plaintext
125 lines
4.4 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
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#
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# Platform support for Mellanox hardware
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#
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menuconfig MELLANOX_PLATFORM
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bool "Platform support for Mellanox hardware"
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depends on X86 || ARM || ARM64 || COMPILE_TEST
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help
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Say Y here to get to see options for platform support for
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Mellanox systems. This option alone does not add any kernel code.
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If you say N, all options in this submenu will be skipped and disabled.
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if MELLANOX_PLATFORM
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config MLX_PLATFORM
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tristate "Mellanox Technologies platform support"
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depends on ACPI && I2C && PCI
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select REGMAP
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help
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This option enables system support for the Mellanox Technologies
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platform. The Mellanox systems provide data center networking
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solutions based on Virtual Protocol Interconnect (VPI) technology
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enable seamless connectivity to 56/100Gb/s InfiniBand or 10/40/56GbE
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connection.
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If you have a Mellanox system, say Y or M here.
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config MLXREG_DPU
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tristate "Nvidia Data Processor Unit platform driver support"
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depends on I2C
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select REGMAP_I2C
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help
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This driver provides support for the Nvidia BF3 Data Processor Units,
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which are the part of SN4280 Ethernet smart switch systems
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providing a high performance switching solution for Enterprise Data
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Centers (EDC) for building Ethernet based clusters, High-Performance
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Computing (HPC) and embedded environments.
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If you have a Nvidia smart switch system, say Y or M here.
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config MLXREG_HOTPLUG
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tristate "Mellanox platform hotplug driver support"
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depends on HWMON
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depends on I2C
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select REGMAP
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help
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This driver handles hot-plug events for the power suppliers, power
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cables and fans on the wide range Mellanox IB and Ethernet systems.
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config MLXREG_IO
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tristate "Mellanox platform register access driver support"
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depends on HWMON
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select REGMAP
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help
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This driver allows access to Mellanox programmable device register
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space through sysfs interface. The sets of registers for sysfs access
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are defined per system type bases and include the registers related
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to system resets operation, system reset causes monitoring and some
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kinds of mux selection.
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config MLXREG_LC
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tristate "Mellanox line card platform driver support"
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depends on HWMON
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depends on I2C
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select REGMAP
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help
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This driver provides support for the Mellanox MSN4800-XX line cards,
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which are the part of MSN4800 Ethernet modular switch systems
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providing a high performance switching solution for Enterprise Data
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Centers (EDC) for building Ethernet based clusters, High-Performance
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Computing (HPC) and embedded environments.
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config MLXBF_TMFIFO
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tristate "Mellanox BlueField SoC TmFifo platform driver"
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depends on ARM64
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depends on ACPI
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depends on VIRTIO_CONSOLE && VIRTIO_NET
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help
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Say y here to enable TmFifo support. The TmFifo driver provides
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platform driver support for the TmFifo which supports console
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and networking based on the virtio framework.
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config MLXBF_BOOTCTL
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tristate "Mellanox BlueField Firmware Boot Control driver"
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depends on ARM64
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depends on ACPI
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depends on NET
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help
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The Mellanox BlueField firmware implements functionality to
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request swapping the primary and alternate eMMC boot partition,
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and to set up a watchdog that can undo that swap if the system
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does not boot up correctly. This driver provides sysfs access
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to the userspace tools, to be used in conjunction with the eMMC
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device driver to do necessary initial swap of the boot partition.
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config MLXBF_PMC
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tristate "Mellanox BlueField Performance Monitoring Counters driver"
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depends on ARM64
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depends on HWMON
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depends on ACPI
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help
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Say y here to enable PMC support. The PMC driver provides access
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to performance monitoring counters within various blocks in the
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Mellanox BlueField SoC via a sysfs interface.
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config NVSW_SN2201
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tristate "Nvidia SN2201 platform driver support"
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depends on HWMON && I2C
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depends on ACPI || COMPILE_TEST
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select REGMAP_I2C
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help
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This driver provides support for the Nvidia SN2201 platform.
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The SN2201 is a highly integrated for one rack unit system with
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L3 management switches. It has 48 x 1Gbps RJ45 + 4 x 100G QSFP28
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ports in a compact 1RU form factor. The system also including a
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serial port (RS-232 interface), an OOB port (1G/100M MDI interface)
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and USB ports for management functions.
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The processor used on SN2201 is Intel Atom®Processor C Series,
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C3338R which is one of the Denverton product families.
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System equipped with Nvidia®Spectrum-1 32x100GbE Ethernet switch.
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endif # MELLANOX_PLATFORM
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