7e38a7422f
This patch extends the mlxbf-bootctl driver's sysfs entries to support read and write access for the manufacturing (MFG) fields in the board-level EEPROM. The MFG fields are set once during the board manufacturing phase, and then the MFG fields are write-protected. Signed-off-by: David Thompson <davthompson@nvidia.com> Reviewed-by: Shravan Kumar Ramani <shravankr@nvidia.com> Link: https://lore.kernel.org/r/20230821183939.3229-1-davthompson@nvidia.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
5.4 KiB
What: /sys/bus/platform/devices/MLNXBF04:00/lifecycle_state Date: Oct 2019 KernelVersion: 5.5 Contact: "Liming Sun lsun@mellanox.com" Description: The Life-cycle state of the SoC, which could be one of the following values.
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Production Production state and can be updated to secure
GA Secured Secure chip and not able to change state
GA Non-Secured Non-Secure chip and not able to change state
RMA Return Merchandise Authorization
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What: /sys/bus/platform/devices/MLNXBF04:00/post_reset_wdog Date: Oct 2019 KernelVersion: 5.5 Contact: "Liming Sun lsun@mellanox.com" Description: The watchdog setting in seconds for the next booting. It's used to reboot the chip and recover it to the old state if the new boot partition fails.
What: /sys/bus/platform/devices/MLNXBF04:00/reset_action Date: Oct 2019 KernelVersion: 5.5 Contact: "Liming Sun lsun@mellanox.com" Description: The source of the boot stream for the next reset. It could be one of the following values:
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external boot from external source (USB or PCIe)
emmc boot from the onchip eMMC
emmc_legacy boot from the onchip eMMC in legacy (slow) mode
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What: /sys/bus/platform/devices/MLNXBF04:00/second_reset_action Date: Oct 2019 KernelVersion: 5.5 Contact: "Liming Sun lsun@mellanox.com" Description: Update the source of the boot stream after next reset. It could be one of the following values and will be applied after next reset.
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external boot from external source (USB or PCIe)
emmc boot from the onchip eMMC
emmc_legacy boot from the onchip eMMC in legacy (slow) mode
swap_emmc swap the primary / secondary boot partition
none cancel the action
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What: /sys/bus/platform/devices/MLNXBF04:00/secure_boot_fuse_state Date: Oct 2019 KernelVersion: 5.5 Contact: "Liming Sun lsun@mellanox.com" Description: The state of eFuse versions with the following values.
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InUse burnt, valid and currently in use
Used burnt and valid
Free not burnt and free to use
Skipped not burnt but not free (skipped)
Wasted burnt and invalid
Invalid not burnt but marked as valid (error state).
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What: /sys/bus/platform/devices/MLNXBF04:00/bootfifo Date: Apr 2023 KernelVersion: 6.4 Contact: "Liming Sun limings@nvidia.com" Description: The file used to access the BlueField boot fifo.
What: /sys/bus/platform/devices/MLNXBF04:00/rsh_log Date: May 2023 KernelVersion: 6.4 Contact: "Liming Sun limings@nvidia.com" Description: The file used to write BlueField boot log with the format "[INFO|WARN|ERR|ASSERT ]". Log level 'INFO' is used by default if not specified.
What: /sys/bus/platform/devices/MLNXBF04:00/oob_mac Date: August 2023 KernelVersion: 6.5 Contact: "David Thompson davthompson@nvidia.com" Description: The "oob_mac" sysfs attribute holds the MAC address for the out-of-band 1Gbps Ethernet port. This MAC address is provided on a board-level label.
What: /sys/bus/platform/devices/MLNXBF04:00/opn Date: August 2023 KernelVersion: 6.5 Contact: "David Thompson davthompson@nvidia.com" Description: The "opn" sysfs attribute holds the board's part number. This value is provided on a board-level label.
What: /sys/bus/platform/devices/MLNXBF04:00/sku Date: August 2023 KernelVersion: 6.5 Contact: "David Thompson davthompson@nvidia.com" Description: The "sku" sysfs attribute holds the board's SKU number. This value is provided on a board-level label.
What: /sys/bus/platform/devices/MLNXBF04:00/modl Date: August 2023 KernelVersion: 6.5 Contact: "David Thompson davthompson@nvidia.com" Description: The "modl" sysfs attribute holds the board's model number. This value is provided on a board-level label.
What: /sys/bus/platform/devices/MLNXBF04:00/sn Date: August 2023 KernelVersion: 6.5 Contact: "David Thompson davthompson@nvidia.com" Description: The "sn" sysfs attribute holds the board's serial number. This value is provided on a board-level label.
What: /sys/bus/platform/devices/MLNXBF04:00/uuid Date: August 2023 KernelVersion: 6.5 Contact: "David Thompson davthompson@nvidia.com" Description: The "uuid" sysfs attribute holds the board's UUID. This value is provided by the manufacturing team.
What: /sys/bus/platform/devices/MLNXBF04:00/rev Date: August 2023 KernelVersion: 6.5 Contact: "David Thompson davthompson@nvidia.com" Description: The "rev" sysfs attribute holds the board's revision. This value is provided on a board-level label.
What: /sys/bus/platform/devices/MLNXBF04:00/mfg_lock Date: August 2023 KernelVersion: 6.5 Contact: "David Thompson davthompson@nvidia.com" Description: The "mfg_lock" sysfs attribute is write-only. A successful write to this attribute will latch the board-level attributes into EEPROM, making them read-only.