From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: [sky2 driver] 88E8056 PCI-E Gigabit Ethernet Controller not
 working after suspend
Date: Tue, 9 Oct 2018 13:09:04 -0700
Message-ID: <20181009130904.37cec5d0@xeon-e3>
References: <01fd5a94-37d5-f029-d215-ce143516ab84@bigon.be>
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Cc: netdev@vger.kernel.org
To: Laurent Bigonville <bigon@bigon.be>
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On Tue, 9 Oct 2018 19:30:30 +0200
Laurent Bigonville <bigon@bigon.be> wrote:

> Hello,
> 
> On my desktop (Asus MB with dual Ethernet port), when waking up after 
> suspend, the network card is not detecting the link.
> 
> I have to rmmod the sky2 driver and then modprobing it again.
> 
> lspci shows me:
> 
> 04:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8056 PCI-E 
> Gigabit Ethernet Controller (rev 12)
> 05:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8056 PCI-E 
> Gigabit Ethernet Controller (rev 12)
> 
> An idea what's wrong here?
> 
> Kind regards,
> 
> Laurent Bigonville
> 

I used to have that motherboard (about 8 years ago). Long  dead by now.

There was some issue with how the power management worked. Forgot the workaround,
you might have to dig in the mailing list archive.