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:   Thu, 22 Apr 2021 00:18:04 +0000
From:   Dexuan Cui <decui@...rosoft.com>
To:     "davem@...emloft.net" <davem@...emloft.net>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     Stephen Hemminger <stephen@...workplumber.org>,
        KY Srinivasan <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        "wei.liu@...nel.org" <wei.liu@...nel.org>,
        Wei Liu <liuwe@...rosoft.com>,
        "leon@...nel.org" <leon@...nel.org>,
        "andrew@...n.ch" <andrew@...n.ch>,
        "bernd@...rovitsch.priv.at" <bernd@...rovitsch.priv.at>,
        "rdunlap@...radead.org" <rdunlap@...radead.org>,
        Shachar Raindel <shacharr@...rosoft.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        Joseph Salisbury <Joseph.Salisbury@...rosoft.com>
Subject: RE: [PATCH v8 net-next 1/2] hv_netvsc: Make netvsc/VF binding check
 both MAC and serial number

> From: Stephen Hemminger <stephen@...workplumber.org>
> Sent: Monday, April 19, 2021 8:54 AM
> To: Dexuan Cui <decui@...rosoft.com>
>  ...
> 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>

Hi David, Jakub,
The "2/2" patch has been in the net-next tree since Monday, but this
"1/2" patch is not in -- can you please pick up this patch as well? This
patch is needed by the "2/2" patch.

Thanks,
-- Dexuan