| What: /sys/bus/dfl/devices/dfl_dev.X/fec_mode |
| Date: Oct 2020 |
| KernelVersion: 5.12 |
| Contact: Xu Yilun <yilun.xu@intel.com> |
| 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 <yilun.xu@intel.com> |
| 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 <yilun.xu@intel.com> |
| 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 <yilun.xu@intel.com> |
| Description: Read-only. Returns the version of the Nios firmware in the |
| FPGA. Its format is "major.minor.patch". |
| Format: %x.%x.%x |
