On Thu, 20 Dec 2018 14:40:11 +0530, Vasundhara Volam wrote:

This patchset adds support for configuration parameters setting through
devlink_port.  Each device registers supported configuration parameters
table.

The user can retrieve data on these parameters by
"devlink port param show" command and can set new value to a
parameter by "devlink port param set" command.
All configuration modes supported by devlink_dev are supported
by devlink_port also.

Command examples and output:

# devlink port param show
pci/0000:3b:00.0/0:
  name wake-on-lan type generic
    values:
      cmode permanent value false

pci/0000:3b:00.1/1:
  name wake-on-lan type generic
    values:
      cmode permanent value false

pci/0000:af:00.0/0:
  name wake-on-lan type generic
    values:
      cmode permanent value true

# devlink port param show pci/0000:3b:00.0/0 name wake-on-lan
pci/0000:3b:00.0/0:
  name wake-on-lan type generic
    values:
      cmode permanent value false

# devlink port param set pci/0000:3b:00.0/0 name wake-on-lan cmode permanent value true

There is difference of opinion on adding WOL parameter to devlink, between
Jakub Kicinski and Michael Chan.

Quote from Jakud Kicinski:
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Patchwork or git may cut off anything under the ------ line.