netdev - Re: [PATCH] hv_netvsc: do not use VF device if link is down

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Message-Id: <20200804.161554.2165553573160523282.davem@davemloft.net>
Date:   Tue, 04 Aug 2020 16:15:54 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     stephen@...workplumber.org
Cc:     haiyangz@...rosoft.com, kuba@...nel.org, netdev@...r.kernel.org,
        wei.liu@...nel.org, ashish.n.shah@...el.com
Subject: Re: [PATCH] hv_netvsc: do not use VF device if link is down

From: Stephen Hemminger <stephen@...workplumber.org>
Date: Tue,  4 Aug 2020 09:54:15 -0700

> If the accelerated networking SRIOV VF device has lost carrier
> use the synthetic network device which is available as backup
> path. This is a rare case since if VF link goes down, normally
> the VMBus device will also loose external connectivity as well.
> But if the communication is between two VM's on the same host
> the VMBus device will still work.
> 
> Reported-by: "Shah, Ashish N" <ashish.n.shah@...el.com>
> Fixes: 0c195567a8f6 ("netvsc: transparent VF management")
> Signed-off-by: Stephen Hemminger <stephen@...workplumber.org>

Applied and queued up for -stable, thanks.