On Jan 17, 2019, at 6:01 PM, Florian Fainelli <f.faine...@gmail.com> wrote:
> Correct. The other ports are exposed as regular Ethernet network devices.
OK, I've updated a comment in the pull request for that.
So, in any pre-4.19 kernels, does the directory /sys/class/net/{device}/dsa
exist even if there's no tagging file in that directory?
Or is there some other way, in pre-4.19 kernels, to determine if a NIC is a DSA
management-port NIC?
If so, then, even though you can't determine the tag type from userland, you
could offer all the DLT_s for the various tag types in the DLT list and let the
user choose which one to use; they might be able to do so if they know what
type of device they're capturing on. (If the tagging file *does* exist, you
can just offer them the one DLT_ that's correct for the device.)
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