Re: [PATCH] b44: power down PHY when interface down

On Sat, Jun 30, 2007 at 07:44:59AM -0700, Arjan van de Ven wrote:
Matthew Garrett wrote:
Do you still get link beat detection when the phy is powered down?

does that matter?
If the interface is down, nic drivers aren't expected to detect
link... if userspace wants to find link status it should have the
interface up.

If that's the policy, why do we leave this up to individual drivers?
Right now most of them let you make the query regardless of interface
state.

I'd agree that there's a need for a state where we power down as much as
possible (even at the cost of functionality), but where possible it
would also be nice to offer a state where the mac is powered down and
the phy left up. If the existing semantics are confused then it would be
nice to fix them, too.
--
Matthew Garrett | mjg59@xxxxxxxxxxxxx
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

Relevant Pages