Re: [PATCH v8 net-next 1/2] hv_netvsc: Make netvsc/VF binding check both MAC and serial number

From: Stephen Hemminger
Date: Mon Apr 19 2021 - 11:54:02 EST


On Fri, 16 Apr 2021 13:11:58 -0700
Dexuan Cui <decui@xxxxxxxxxxxxx> wrote:

> Currently the netvsc/VF binding logic only checks the PCI serial number.
>
> The upcoming Microsoft Azure Network Adapter (MANA) supports multiple
> net_device interfaces (each such interface is called a "vPort", and has
> its unique MAC address) which are backed by the same VF PCI device, so
> the binding logic should check both the MAC address and the PCI serial
> number.
>
> The change should not break any other existing VF drivers, because
> Hyper-V NIC SR-IOV implementation requires the netvsc network
> interface and the VF network interface have the same MAC address.
>
> Co-developed-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
> Signed-off-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
> Co-developed-by: Shachar Raindel <shacharr@xxxxxxxxxxxxx>
> Signed-off-by: Shachar Raindel <shacharr@xxxxxxxxxxxxx>
> Signed-off-by: Dexuan Cui <decui@xxxxxxxxxxxxx>

Acked-by: Stephen Hemminger <stephen@xxxxxxxxxxxxxxxxxx>