[EXTERNAL] Re: [PATCH] net/netvsc: add support for mtu_set

Stephen Hemminger stephen at networkplumber.org
Tue Oct 10 17:55:04 CEST 2023


On Mon, 9 Oct 2023 16:41:38 +0000
Sam Andrew <samandrew at microsoft.com> wrote:

> > It looks like this proposed patch does not have the accelerated networking
> > virtual device case.  The driver needs to first update the MTU of the underlying
> > VF device (and handle errors), then reinit the vmbus device.  
> 
> The following line should handle the AN virtual device case:
> 
> +	/* Change MTU of underlying VF dev first, if it exists */
> +	ret = hn_vf_mtu_set(dev, mtu);
> +	if (ret)
> +		return ret;
> 
> This is the new method added in hn_vf.c:

Yes, that should cover it.


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