Add devlink dpipe, resource and trap constants to golang.org/x/sys/unix

[kvadrage]

Hi @mdlayher !

I'm planning to extend this library to add support for additional devlink features like:

• devlink dpipe
• devlink sb
• devlink resource
• devlink trap

Already implemented some of them, but there's one issue, that prevents me to move forward with this.

I saw you recently submitted devlink constants definitions into golang.org/x/sys/unix.
However, some of them are still missing, for example:

DEVLINK_ATTR_RESOURCE_*
DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_*
DEVLINK_ATTR_TRAP_*
DEVLINK_ATTR_PARAM_*
DEVLINK_ATTR_INFO_*

I would be grateful if you could add them to unix package as well.
Can you please help?

Regards,
Alexander

[mdlayher]

I recall having some trouble adding some of the newer constants with the current code generation infrastructure. I'll take another look, but in the mean time, you can always hard code local definitions.

[mdlayher]

By the way, I'm glad you're adding more features! Thank you. If possible, please keep each commit/PR small in size so it's easier for me to review and offer feedback.

[kvadrage]

Thank you for your feedback!
I will start submitting parts, that could be done with existing constants, and then get back to the ones with missing definitions.