88d1bece89
The HBM protocol version is negotiated during the setup phase, then settled on a highest possible common version of the driver and the firmware. The sysfs API advertises both negotiated and driver supported versions in the device attributes. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
48 lines
1.4 KiB
Plaintext
48 lines
1.4 KiB
Plaintext
What: /sys/class/mei/
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Date: May 2014
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KernelVersion: 3.17
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Contact: Tomas Winkler <tomas.winkler@intel.com>
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Description:
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The mei/ class sub-directory belongs to mei device class
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What: /sys/class/mei/meiN/
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Date: May 2014
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KernelVersion: 3.17
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Contact: Tomas Winkler <tomas.winkler@intel.com>
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Description:
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The /sys/class/mei/meiN directory is created for
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each probed mei device
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What: /sys/class/mei/meiN/fw_status
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Date: Nov 2014
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KernelVersion: 3.19
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Contact: Tomas Winkler <tomas.winkler@intel.com>
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Description: Display fw status registers content
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The ME FW writes its status information into fw status
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registers for BIOS and OS to monitor fw health.
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The register contains running state, power management
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state, error codes, and others. The way the registers
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are decoded depends on PCH or SoC generation.
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Also number of registers varies between 1 and 6
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depending on generation.
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What: /sys/class/mei/meiN/hbm_ver
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Date: Aug 2016
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KernelVersion: 4.9
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Contact: Tomas Winkler <tomas.winkler@intel.com>
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Description: Display the negotiated HBM protocol version.
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The HBM protocol version negotiated
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between the driver and the device.
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What: /sys/class/mei/meiN/hbm_ver_drv
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Date: Aug 2016
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KernelVersion: 4.9
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Contact: Tomas Winkler <tomas.winkler@intel.com>
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Description: Display the driver HBM protocol version.
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The HBM protocol version supported by the driver.
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