netdev - Re: [PATCH net-next] liquidio: fix kernel panic in VF driver

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Message-Id: <20171028.185335.2096411268542820879.davem@redhat.com>
Date:   Sat, 28 Oct 2017 18:53:35 +0900 (KST)
From:   David Miller <davem@...hat.com>
To:     felix.manlunas@...ium.com
Cc:     netdev@...r.kernel.org, raghu.vatsavayi@...ium.com,
        derek.chickles@...ium.com, satananda.burla@...ium.com
Subject: Re: [PATCH net-next] liquidio: fix kernel panic in VF driver

From: Felix Manlunas <felix.manlunas@...ium.com>
Date: Thu, 26 Oct 2017 16:46:36 -0700

> Doing ifconfig down on VF driver in the middle of receiving line rate
> traffic causes a kernel panic:
 ...
> Reason is:  in the function assigned to net_device_ops->ndo_stop, the steps
> for bringing down the interface are done in the wrong order.  The step that
> notifies the NIC firmware to stop forwarding packets to host is done too
> late.  Fix it by moving that step to the beginning.
> 
> Signed-off-by: Felix Manlunas <felix.manlunas@...ium.com>
> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@...ium.com>

Applied, thanks.