1What:		/sys/bus/dfl/devices/dfl_dev.X/fec_mode
2Date:		Oct 2020
3KernelVersion:	5.12
4Contact:	Xu Yilun <yilun.xu@intel.com>
5Description:	Read-only. Returns the FEC mode of the 25G links of the
6		ethernet retimers configured by Nios firmware. "rs" for Reed
7		Solomon FEC, "kr" for Fire Code FEC, "no" for NO FEC.
8		"not supported" if the FEC mode setting is not supported, this
9		happens when the Nios firmware version major < 3, or no link is
10		configured to 25G.
11		Format: string
12
13What:		/sys/bus/dfl/devices/dfl_dev.X/retimer_A_mode
14Date:		Oct 2020
15KernelVersion:	5.12
16Contact:	Xu Yilun <yilun.xu@intel.com>
17Description:	Read-only. Returns the enumeration value of the working mode of
18		the retimer A configured by the Nios firmware. The value is
19		read out from shared registers filled by the Nios firmware. Now
20		the values could be:
21
22		- "0": Reset
23		- "1": 4x10G
24		- "2": 4x25G
25		- "3": 2x25G
26		- "4": 2x25G+2x10G
27		- "5": 1x25G
28
29		If the Nios firmware is updated in future to support more
30		retimer modes, more enumeration value is expected.
31		Format: 0x%x
32
33What:		/sys/bus/dfl/devices/dfl_dev.X/retimer_B_mode
34Date:		Oct 2020
35KernelVersion:	5.12
36Contact:	Xu Yilun <yilun.xu@intel.com>
37Description:	Read-only. Returns the enumeration value of the working mode of
38		the retimer B configured by the Nios firmware. The value format
39		is the same as retimer_A_mode.
40
41What:		/sys/bus/dfl/devices/dfl_dev.X/nios_fw_version
42Date:		Oct 2020
43KernelVersion:	5.12
44Contact:	Xu Yilun <yilun.xu@intel.com>
45Description:	Read-only. Returns the version of the Nios firmware in the
46		FPGA. Its format is "major.minor.patch".
47		Format: %x.%x.%x
48