[dpdk-dev] [PATCH] net/virtio: disable LSC interrupt if MSIX not enabled

[Yuanhan Liu]

On Thu, Mar 09, 2017 at 03:28:02PM -0500, Allain Legacy wrote:
> From: Matt Peters <matt.peters at windriver.com>
> 
> The link state change interrupt can only be configured if the virtio device
> supports MSIX.  Prior to this change the writing of the vector to the PCI
> config space was causing it to overwrite the initial part of the MAC
> address since the MSIX vector is not in the config space and is occupied by
> the MAC address.
> 
> This has been reproduced in Virtual Box (v5.0.30.r112061) in Windows 7
> 

Fixes: 954ea11540b6 ("virtio: do not report link state feature unless available")

Cc: stable at dpdk.org

Applied to dpdk-next-virtio. Thanks!

	--yliu
> Signed-off-by: Matt Peters <matt.peters at windriver.com>
> Signed-off-by: Allain Legacy <allain.legacy at windriver.com>