linux-kernel - Re: e1000e: NIC not working, power management issue?

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Date:	Thu, 15 Sep 2011 06:48:04 +0200
From:	Lucas Nussbaum <lucas@...as-nussbaum.net>
To:	John Ronciak <john.ronciak@...il.com>
Cc:	Frederik Himpe <fhimpe@...enet.be>, netdev@...r.kernel.org,
	e1000-devel <e1000-devel@...ts.sourceforge.net>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: e1000e: NIC not working, power management issue?

On 14/09/11 at 14:14 -0700, John Ronciak wrote:
> On Wed, Sep 14, 2011 at 1:31 PM, Frederik Himpe <fhimpe@...enet.be> wrote:
> 
> >>
> >> dmesg:
> >> [ 6260.327320] e1000e: Intel(R) PRO/1000 Network Driver - 1.4.4-k
> >> [ 6260.327324] e1000e: Copyright(c) 1999 - 2011 Intel Corporation.
> >> [ 6260.327355] e1000e 0000:00:19.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
> >> [ 6260.327366] e1000e 0000:00:19.0: setting latency timer to 64
> >> [ 6260.327490] e1000e 0000:00:19.0: irq 43 for MSI/MSI-X
> >> [ 6260.517813] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GT/s:Width x1) 00:24:e8:a7:2c:42
> >> [ 6260.517824] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection
> >> [ 6260.518077] e1000e 0000:00:19.0: eth0: MAC: 7, PHY: 8, PBA No: 3002FF-0FF
> >> [ 6260.518102] e1000e 0000:00:19.0: PME# enabled
> >> [ 6260.556129] e1000e 0000:00:19.0: BAR 0: set to [mem 0xf6ae0000-0xf6afffff] (PCI address [0xf6ae0000-0xf6afffff])
> >> [ 6260.556139] e1000e 0000:00:19.0: BAR 1: set to [mem 0xf6adb000-0xf6adbfff] (PCI address [0xf6adb000-0xf6adbfff])
> >> [ 6260.556147] e1000e 0000:00:19.0: BAR 2: set to [io  0xefe0-0xefff] (PCI address [0xefe0-0xefff])
> >> [ 6260.556167] e1000e 0000:00:19.0: restoring config space at offset 0xf (was 0x100, writing 0x10a)
> >> [ 6260.556193] e1000e 0000:00:19.0: restoring config space at offset 0x1 (was 0x100000, writing 0x100107)
> >> [ 6260.556253] e1000e 0000:00:19.0: PME# disabled
> >> [ 6260.645141] e1000e 0000:00:19.0: irq 43 for MSI/MSI-X
> >> [ 6260.700393] e1000e 0000:00:19.0: irq 43 for MSI/MSI-X
> >> [ 6260.702222] ADDRCONF(NETDEV_UP): eth0: link is not ready
> It doesn't have link.  Without link nothing can happen on the wire.
> What are you expecting to happen here?
> 
> Have the device get link first.

What do you mean by "get link" ?
A network cable is plugged in the ethernet port, but it doesn't seem to be
detected in Linux 3.0 (while everything works fine in 2.6.32).

Also, it seems that link is detected when the laptop first boots, until a "MAC
Wakeup cause - Link Status Change" message:
[    1.189506] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GT/s:Width x1) 00:24:e8:a7:2c:42
[    1.189579] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection
[    1.189664] e1000e 0000:00:19.0: eth0: MAC: 7, PHY: 8, PBA No: 3002FF-0FF
[   30.636723] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   33.780901] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[   33.783944] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[...]
[ 6255.418398] e1000e 0000:00:19.0: eth0: MAC Wakeup cause - Link Status Change

Lucas
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