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- What: /sys/bus/dfl/devices/dfl_dev.X/fec_mode
- Date: Oct 2020
- KernelVersion: 5.12
- Contact: Xu Yilun <[email protected]>
- Description: Read-only. Returns the FEC mode of the 25G links of the
- ethernet retimers configured by Nios firmware. "rs" for Reed
- Solomon FEC, "kr" for Fire Code FEC, "no" for NO FEC.
- "not supported" if the FEC mode setting is not supported, this
- happens when the Nios firmware version major < 3, or no link is
- configured to 25G.
- Format: string
- What: /sys/bus/dfl/devices/dfl_dev.X/retimer_A_mode
- Date: Oct 2020
- KernelVersion: 5.12
- Contact: Xu Yilun <[email protected]>
- Description: Read-only. Returns the enumeration value of the working mode of
- the retimer A configured by the Nios firmware. The value is
- read out from shared registers filled by the Nios firmware. Now
- the values could be:
- - "0": Reset
- - "1": 4x10G
- - "2": 4x25G
- - "3": 2x25G
- - "4": 2x25G+2x10G
- - "5": 1x25G
- If the Nios firmware is updated in future to support more
- retimer modes, more enumeration value is expected.
- Format: 0x%x
- What: /sys/bus/dfl/devices/dfl_dev.X/retimer_B_mode
- Date: Oct 2020
- KernelVersion: 5.12
- Contact: Xu Yilun <[email protected]>
- Description: Read-only. Returns the enumeration value of the working mode of
- the retimer B configured by the Nios firmware. The value format
- is the same as retimer_A_mode.
- What: /sys/bus/dfl/devices/dfl_dev.X/nios_fw_version
- Date: Oct 2020
- KernelVersion: 5.12
- Contact: Xu Yilun <[email protected]>
- Description: Read-only. Returns the version of the Nios firmware in the
- FPGA. Its format is "major.minor.patch".
- Format: %x.%x.%x
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