Actually I have two ports in a card, and I want to communicate the link
state on both end. I mean, if link of one port is physically down (cable
unplugged) I can shutdown the other interface. Showing the network behind
second port that they are connected to each other not with me...
If I unload the driver I'll lose control of both port and will not be able
to see if the down port came up or not. So badly in need of this feature :).
Thanks,
--Masood
On Fri, Dec 4, 2009 at 5:15 PM, Brandeburg, Jesse <
[email protected]> wrote:
> In the short term, you can always put the port into D3 using setpci (once
> the driver is unloaded), which will take down the link if wake on is
> disabled. Linux unfortunately doesn't have good device power management
> controls yet.
>
> If you would like us to look into this feature as a feature request, we can
> do so. We haven't had many requests for this particular type of behavior,
> although we have heard of it.
>
> I'm interested in the usage case you have where you need the physical link
> to go down, because we can't of course do anything about the link state when
> for instance the machine is first booted, until the driver is loaded.
>
> Jesse
>
> -----Original Message-----
> From: Masood Mehmood [mailto:[email protected]]
> Sent: Friday, December 04, 2009 4:47 PM
> To: [email protected]
> Subject: [E1000-devel] no physical shutdown for igb???
>
> Hi All,
>
> I'm using "Intel(r) 82576 Gigabit Ethernet card" which uses igb driver. I
> just
> want to know why we are not able to physically shutdown the interface using
> the "ifconfig" command? The driver doesn't support it? or the card doesn't
> support this feature?
>
> I was looking in the driver code and the functions "e1000_power_down_phy"
> is
> commented out in igb version of the driver. which means????
>
> NOTE: "Wake-on: d" no issue of wake-on.
>
> --
> Best Regards
> Masood Mehmood
>
--
Best Regards
Masood Mehmood
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