diff options
Diffstat (limited to 'Documentation/ABI/stable/sysfs-driver-mlxreg-io')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-driver-mlxreg-io | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-driver-mlxreg-io b/Documentation/ABI/stable/sysfs-driver-mlxreg-io index 60953903d007..f59461111221 100644 --- a/Documentation/ABI/stable/sysfs-driver-mlxreg-io +++ b/Documentation/ABI/stable/sysfs-driver-mlxreg-io @@ -662,3 +662,154 @@ Description: This file shows the system reset cause due to AC power failure. Value 1 in file means this is reset cause, 0 - otherwise. The file is read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld5_pn +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld5_version +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld5_version_min +Date: August 2023 +KernelVersion: 6.6 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: These files show with which CPLD part numbers, version and minor + versions have been burned the 5-th CPLD device equipped on a + system. + + The files are read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_cap +Date: August 2023 +KernelVersion: 6.6 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: This file indicates the available method of CPLD/FPGA devices + field update through the JTAG chain: + + b00 - field update through LPC bus register memory space. + b01 - Reserved. + b10 - Reserved. + b11 - field update through CPU GPIOs bit-banging. + + The file is read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lid_open +Date: August 2023 +KernelVersion: 6.6 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: 1 - indicates that system lid is opened, otherwise 0. + + The file is read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_long_pwr_pb +Date: August 2023 +KernelVersion: 6.6 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: This file if set 1 indicates that system has been reset by + long press of power button. + + The file is read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_swb_dc_dc_pwr_fail +Date: August 2023 +KernelVersion: 6.6 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: This file shows 1 in case the system reset happened due to the + failure of any DC-DC power converter devices equipped on the + switch board. + + The file is read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/global_wp_request +Date: May 2025 +KernelVersion: 6.16 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: This file when written 1 activates request to allow access to + the write protected flashes. Such request can be performed only + for system equipped with BMC (Board Management Controller), + which can grant access to protected flashes. In case BMC allows + access - it will respond with "global_wp_response". BMC decides + regarding time window of granted access. After granted window is + expired, BMC will change value back to 0. + Default value is 0. + + The file is read/write. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/global_wp_response +Date: May 2025 +KernelVersion: 6.16 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: This file, when set 1, indicates that access to protected + flashes have been granted to host CPU by BMC. + Default value is 0. + + The file is read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/shutdown_unlock +Date: May 2025 +KernelVersion: 6.16 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: When ASICs are getting overheated, system protection + hardware mechanism enforces system reboot. After system + reboot ASICs come up in locked state. To unlock ASICs, + this file should be written 1 + Default value is 0. + + The file is read/write. + +What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/boot_progress +Date: May 2025 +KernelVersion: 6.16 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: These files show the Data Process Unit board boot progress + state. Valid states are: + - 4 : OS starting. + - 5 : OS running. + - 6 : Low-Power Standby. + + The file is read only. + +What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/dpu_id +Date: May 2025 +KernelVersion: 6.16 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: This file shows hardware Id of Data Process Unit board. + + The file is read only. + +What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/reset_aux_pwr_or_reload +What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/reset_dpu_thermal +What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/reset_from_main_board +Date: May 2025 +KernelVersion: 6.16 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: These files expose the cause of the most recent reset of the Data + Processing Unit (DPU) board. The possible causes are: + - Power auxiliary outage or power reload. + - Thermal shutdown. + - Reset request from the main board. + Value 1 in file means this is reset cause, 0 - otherwise. Only one of + the above causes could be 1 at the same time, representing only last + reset cause. + + The files are read only. + +What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/perst_rst +What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/phy_rst +What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/tpm_rst +What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/usbphy_rst +Date: May 2025 +KernelVersion: 6.16 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: These files allow to reset hardware components of Data Process + Unit board. Respectively PCI, Ethernet PHY, TPM and USB PHY + resets. + Default values for all the attributes is 1. Writing 0 will + cause reset of the related component. + + The files are read/write. + +What: /sys/devices/platform/mlxplat/i2c_mlxcpld.*/i2c-*/i2c-*/*-00**/mlxreg-io.*/hwmon/hwmon*/ufm_upgrade +Date: May 2025 +KernelVersion: 6.16 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: These files show status of Unified Fabric Manager upgrade. + state. 0 - means upgrade is done, 1 - otherwise. + + The file is read only. |