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

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Date:   Mon, 19 Apr 2021 08:53:48 -0700
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Dexuan Cui <decui@...rosoft.com>
Cc:     davem@...emloft.net, kuba@...nel.org, kys@...rosoft.com,
        haiyangz@...rosoft.com, sthemmin@...rosoft.com, wei.liu@...nel.org,
        liuwe@...rosoft.com, netdev@...r.kernel.org, leon@...nel.org,
        andrew@...n.ch, bernd@...rovitsch.priv.at, rdunlap@...radead.org,
        shacharr@...rosoft.com, linux-kernel@...r.kernel.org,
        linux-hyperv@...r.kernel.org
Subject: Re: [PATCH v8 net-next 1/2] hv_netvsc: Make netvsc/VF binding check
 both MAC and serial number

On Fri, 16 Apr 2021 13:11:58 -0700
Dexuan Cui <decui@...rosoft.com> 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@...rosoft.com>
> Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>
> Co-developed-by: Shachar Raindel <shacharr@...rosoft.com>
> Signed-off-by: Shachar Raindel <shacharr@...rosoft.com>
> Signed-off-by: Dexuan Cui <decui@...rosoft.com>

Acked-by: Stephen Hemminger <stephen@...workplumber.org>