@@ -143,3 +143,66 @@ Description: These files show the system reset cause, as following:
only last reset cause.
The files are read only.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config1
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config2
+Date: January 2020
+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.
+
+ The files are read only.
+
+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
+Date: January 2020
+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.
+
+ The files are read only.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pcie_asic_reset_dis
+Date: January 2020
+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.
+
+ The file is read/write.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/vpd_wp
+Date: January 2020
+KernelVersion: 5.6
+Contact: Vadim Pasternak <vadimpmellanox.com>
+Description: This file allows to overwrite system VPD hardware wrtie
+ protection when attribute is set 1.
+
+ The file is read/write.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/voltreg_update_status
+Date: January 2020
+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.
+
+ The file is read only.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/ufm_version
+Date: January 2020
+KernelVersion: 5.6
+Contact: Vadim Pasternak <vadimpmellanox.com>
+Description: This file exposes the firmware version of burnable voltage
+ regulator devices.
+
+ The file is read only.
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@mellanox.com> --- v1-v2: Changes added by Vadim: - Change "Date" to "January 2020". v3-v4: Comments pointed out by Andy: - Drop blank line between "What" and "Date". - Start each section with "What" keyword. --- Documentation/ABI/stable/sysfs-driver-mlxreg-io | 63 +++++++++++++++++++++++++ 1 file changed, 63 insertions(+)