Peter Memishian wrote:
> I was looking at transitioning my driver from ndd to dladm,
> and I was wondering if there is a way to get a list, from
> the command line, of all private properties that a driver supports.
>
> Eg, the bge driver supports some private properties like "_drain_max":
>
> # dladm show-linkprop bge0 -p _drain_max
> LINK PROPERTY PERM VALUE DEFAULT POSSIBLE
> bge0 _drain_max rw 64 64 --
>
> Trying the ndd trick (?) doesn't seem to work:
>
> #dladm show-linkprop bge0 -p \?
> LINK PROPERTY PERM VALUE DEFAULT POSSIBLE
> dladm: warning: cannot get link property '?' for bge0: object not found
> bge0 ?
>
>
> So.. are private properties really private now?
Yes, this is by design: we don't want users poking around looking for
random low-level screws to turn. In general, users should learn about
private properties for a given driver by reading that driver's
documentation, at which point hopefully they will understand a bit more
about what they are actually fiddling with.
I'm not sure I agree with this philosophy, though I can appreciate the
sentiment. There are times when you know you want to enable a tunable,
but can't remember its name. Sometimes just using ndd's '?' is helpful
to see what the tunable is, and documentation can get out of date.
I think dladm should have a way to enumerate these private properties.
-- Garrett
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