Re: [PATCH rdma-next 1/2] IB/ipoib: Update broadcast object if PKey value was changed in index 0

[Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>]

On Sun, 2017-03-19 at 11:18 +0200, Leon Romanovsky wrote:
> From: Feras Daoud <ferasda-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
> 
> Update the broadcast address in the priv->broadcast object when the
> Pkey value changes in index 0, otherwise the multicast GID value will
> keep the previous value of the PKey, and will not be updated.
> This leads to interface state down because the interface will keep
> the
> old PKey value.
> 
> For example, in SR-IOV environment, if the PF changes the value of
> PKey
> index 0 for one of the VFs, then the VF receives PKey change event
> that
> triggers heavy flush. This flush calls update_parent_pkey that update
> the
> broadcast object and its relevant members. If in this case the
> multicast
> GID will not be updated, the interface state will be down.
> 
> Fixes: c2904141696e ("IPoIB: Fix pkey change flow for virtualization
> environments")
> Signed-off-by: Feras Daoud <ferasda-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
> Signed-off-by: Erez Shitrit <erezsh-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
> Reviewed-by: Alex Vesker <valex-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
> Signed-off-by: Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>

Thanks, applied.

-- 
Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
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