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[76.14.218.44]) by smtp.gmail.com with ESMTPSA id x29sm2543765pga.70.2021.04.16.11.08.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Apr 2021 11:08:44 -0700 (PDT) Date: Fri, 16 Apr 2021 11:08:36 -0700 From: Stephen Hemminger To: Dexuan Cui Cc: Haiyang Zhang , "davem@davemloft.net" , "kuba@kernel.org" , KY Srinivasan , Stephen Hemminger , "wei.liu@kernel.org" , Wei Liu , "netdev@vger.kernel.org" , "leon@kernel.org" , "andrew@lunn.ch" , "bernd@petrovitsch.priv.at" , "rdunlap@infradead.org" , Shachar Raindel , "linux-kernel@vger.kernel.org" , "linux-hyperv@vger.kernel.org" Subject: Re: [PATCH v7 net-next] net: mana: Add a driver for Microsoft Azure Network Adapter (MANA) Message-ID: <20210416110836.67a4a88e@hermes.local> In-Reply-To: References: <20210416060705.21998-1-decui@microsoft.com> <20210416094006.70661f47@hermes.local> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-hyperv@vger.kernel.org On Fri, 16 Apr 2021 17:58:45 +0000 Dexuan Cui wrote: > > > > > > This probably should be a separate patch. > > > I think it is trying to address the case of VF discovery in Hyper-V/Azure where > > > the reported > > > VF from Hypervisor is bogus or confused. > > > > This is for the Multi vPorts feature of MANA driver, which allows one VF to > > create multiple vPorts (NICs). They have the same PCI device and same VF > > serial number, but different MACs. > > > > So we put the change in one patch to avoid distro vendors missing this > > change when backporting the MANA driver. > > > > Thanks, > > - Haiyang > > The netvsc change should come together in the same patch with this VF > driver, otherwise the multi-vPorts functionality doesn't work properly. > > The netvsc change should not break any other existing VF drivers, because > Hyper-V NIC SR-IOV implementation requires the the NetVSC network > interface and the VF network interface should have the same MAC address, > otherwise things won't work. > > Thanks, > Dexuan Distro vendors should be able to handle a patch series. Don't see why this could not be two patch series.