tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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