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Date: Sat, 30 Jun 2007 16:19:23 +0100 From: Matthew Garrett <mjg59@...f.ucam.org> To: Arjan van de Ven <arjan@...ux.intel.com> Cc: Török Edvin <edwintorok@...il.com>, netdev@...r.kernel.org, power@...host.org, zambrano@...adcom.com, linux-kernel@...r.kernel.org Subject: 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@...f.ucam.org - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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