From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Wang Subject: Re: vhost + multiqueue + RSS question. Date: Mon, 17 Nov 2014 13:39:20 +0800 Message-ID: <54698A08.4020306@redhat.com> References: <20141116161818.GD7589@cloudius-systems.com> <20141116185604.GA12839@redhat.com> <5CC583AB71FC0C44A5CAB54823E83A8422B8ABD4@SINPEX01CL01.citrite.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: "kvm@vger.kernel.org" , "virtualization@lists.linux-foundation.org" To: Venkateswara Rao Nandigam , "Michael S. Tsirkin" , Gleb Natapov Return-path: In-Reply-To: <5CC583AB71FC0C44A5CAB54823E83A8422B8ABD4@SINPEX01CL01.citrite.net> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org List-Id: kvm.vger.kernel.org On 11/17/2014 12:54 PM, Venkateswara Rao Nandigam wrote: > I have a question related this topic. So How do you set the RSS Key on the Mellanox NIc? I mean from your Guest? I believe it's possible but not implemented currently. The issue is the implementation should not be vendor specific. TUN/TAP has its own automatic flow steering implementation (flow caches). > > If it being set as part of Host driver, is there a way to set it from Guest? I mean my guest will choose a RSS Key and will try to set on the Physical NIC. Flow caches can co-operate with RFS/aRFS now, so there's indeed some kind of co-operation between host card and guest I believe. > > Thanks, > Venkatesh >