Add documentation for the new attributes for: - Exposing reset causes types asserted by: platform reset, SoC reset, AC power failure, software power off request. - Setting and removing system VPD (EEPROM) hardware write protection. - Voltage regulator devices configuration update status and firmware version. - Setting PCIe ASIC reset to disable or enable state during PCIe root complex reset. - System static topology identification, like system's static I2C topology, number and type of FPGA devices within the system and so on. Signed-off-by: Vadim Pasternak <vadimp@xxxxxxxxxxxx> --- Documentation/ABI/stable/sysfs-driver-mlxreg-io | 69 +++++++++++++++++++++++++ 1 file changed, 69 insertions(+) diff --git a/Documentation/ABI/stable/sysfs-driver-mlxreg-io b/Documentation/ABI/stable/sysfs-driver-mlxreg-io index fe30fe505c9b..afb73021a8d8 100644 --- a/Documentation/ABI/stable/sysfs-driver-mlxreg-io +++ b/Documentation/ABI/stable/sysfs-driver-mlxreg-io @@ -150,3 +150,72 @@ What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_asic What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_reload_bios What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sff_wd What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_swb_wd + +Date: December 2019 +KernelVersion: 5.6 +Contact: Vadim Pasternak <vadimpmellanox.com> +Description: These files show system static topology identification + like system's static I2C topology, number and type of FPGA + devices within the system and so on. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config1 +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config2 + + The files are read only. + +Date: December 2019 +KernelVersion: 5.6 +Contact: Vadim Pasternak <vadimpmellanox.com> +Description: These files show the system reset causes, as following: reset + due to AC power failure, reset invoked from software by + assertion reset signal through CPLD. reset caused by signal + asserted by SOC through ACPI register, reset invoked from + software by assertion power off signal through CPLD. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_ac_pwr_fail +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_platform +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_soc +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sw_pwr_off + + The files are read only. + +Date: December 2019 +KernelVersion: 5.6 +Contact: Vadim Pasternak <vadimpmellanox.com> +Description: This file allows to retain ASIC up during PCIe root complex + reset, when attribute is set 1. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pcie_asic_reset_dis + + The file is read/write. + +Date: December 2019 +KernelVersion: 5.6 +Contact: Vadim Pasternak <vadimpmellanox.com> +Description: This file allows to overwrite system VPD hardware wrtie + protection when attribute is set 1. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/vpd_wp + + The file is read/write. + +Date: December 2019 +KernelVersion: 5.6 +Contact: Vadim Pasternak <vadimpmellanox.com> +Description: This file exposes the configuration update status of burnable + voltage regulator devices. The status values are as following: + 0 - OK; 1 - CRC failure; 2 = I2C failure; 3 - in progress. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/voltreg_update_status + + The file is read only. + +Date: December 2019 +KernelVersion: 5.6 +Contact: Vadim Pasternak <vadimpmellanox.com> +Description: This file exposes the firmware version of burnable voltage + regulator devices. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/ufm_version + + The file is read only. -- 2.11.0
