From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id 7ADED567F for ; Thu, 26 Feb 2015 18:00:10 +0100 (CET) Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga101.fm.intel.com with ESMTP; 26 Feb 2015 09:00:08 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.09,653,1418112000"; d="scan'208";a="533286786" Received: from unknown ([10.252.8.7]) by orsmga003.jf.intel.com with SMTP; 26 Feb 2015 08:50:54 -0800 Received: by (sSMTP sendmail emulation); Thu, 26 Feb 2015 17:00:04 +0025 Date: Thu, 26 Feb 2015 17:00:04 +0000 From: Bruce Richardson To: Srinivasreddy R Message-ID: <20150226170001.GA11632@bricha3-MOBL3> References: <745DB4B8861F8E4B9849C970520ABBF1496BD5CC@ORSMSX102.amr.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Organization: Intel Shannon Ltd. User-Agent: Mutt/1.5.23 (2014-03-12) Cc: "dev@dpdk.org" , "dpdk-ovs@lists.01.org" , "Polehn, Mike A" Subject: Re: [dpdk-dev] [Dpdk-ovs] problem in binding interfaces of virtio-pci on the VM X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Feb 2015 17:00:10 -0000 On Thu, Feb 26, 2015 at 10:08:59PM +0530, Srinivasreddy R wrote: > hi Mike, > Thanks for our detailed explanation of your example . usually i do similar > to u and i am aware of working with dpdk applications . > my problem is : > 1. i have written a code for host to guest communication .[taken form > usvhost which is developed in ovdk vswitch] . > 2. i launched VM with two interfaces . > 3. i am able to send and receive traffic to and from guest to host on these > interfaces . > 4. when i try to bind these interfaces to igb_uio to run dpdk application > . i am not able to access my instance . it got struck and not responding . > i need to hard reboot the vm. Are you sure you are not trying to access the vm via one of the interfaces now bount to igb_uio? If you bind the interface you use for ssh to igb_uio, you won't be able to ssh to that vm any more. /Bruce > > My Question is : > surely i might done something wrong in code . as my VM is not able to > access any more when i try to bind interfaces to igb_uio . not able to > debug the issue . > someone please help me in figuring the issue . i dont find anything in > /var/log/messages after relaunching the instance . > > > thanks, > srinivas. > > > > On Thu, Feb 26, 2015 at 8:42 PM, Polehn, Mike A > wrote: > > > In this example, the control network 00:03.0, remains unbound to UIO > > driver but remains attached > > to Linux device driver (ssh access with putty) and just the target > > interfaces are bound. > > Below, it shows all 3 interfaces bound to the uio driver, which are not > > usable until a task uses the UIO driver. > > > > [root@F21vm l3fwd-vf]# lspci -nn > > 00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] > > [8086:1237] (rev 02) > > 00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA > > [Natoma/Triton II] [8086:7000] > > 00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE > > [Natoma/Triton II] [8086:7010] > > 00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI > > [8086:7113] (rev 03) > > 00:02.0 VGA compatible controller [0300]: Cirrus Logic GD 5446 [1013:00b8] > > 00:03.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device > > [1af4:1000] > > 00:04.0 Ethernet controller [0200]: Intel Corporation XL710/X710 Virtual > > Function [8086:154c] (rev 01) > > 00:05.0 Ethernet controller [0200]: Intel Corporation XL710/X710 Virtual > > Function [8086:154c] (rev 01) > > > > [root@F21vm l3fwd-vf]# /usr/src/dpdk/tools/dpdk_nic_bind.py > > --bind=igb_uio 00:04.0 > > [root@F21vm l3fwd-vf]# /usr/src/dpdk/tools/dpdk_nic_bind.py > > --bind=igb_uio 00:05.0 > > [root@F21vm l3fwd-vf]# /usr/src/dpdk/tools/dpdk_nic_bind.py --status > > > > Network devices using DPDK-compatible driver > > ============================================ > > 0000:00:04.0 'XL710/X710 Virtual Function' drv=igb_uio unused=i40evf > > 0000:00:05.0 'XL710/X710 Virtual Function' drv=igb_uio unused=i40evf > > > > Network devices using kernel driver > > =================================== > > 0000:00:03.0 'Virtio network device' if= drv=virtio-pci > > unused=virtio_pci,igb_uio > > > > Other network devices > > ===================== > > > > > > -----Original Message----- > > From: Dpdk-ovs [mailto:dpdk-ovs-bounces@lists.01.org] On Behalf Of > > Srinivasreddy R > > Sent: Thursday, February 26, 2015 6:11 AM > > To: dev@dpdk.org; dpdk-ovs@lists.01.org > > Subject: [Dpdk-ovs] problem in binding interfaces of virtio-pci on the VM > > > > hi , > > I have written sample program for usvhost supported by ovdk. > > > > i have initialized VM using the below command . > > On the VM : > > > > I am able to see two interfaces . and working fine with traffic in > > rawsocket mode . > > my problem is when i bind the interfaces to pmd driver[ ibg_uio ] my > > virtual machine is getting hanged . and i am not able to access it further > > . > > now my question is . what may be the reason for the behavior . and how can > > in debug the root cause . > > please help in finding out the problem . > > > > > > > > ./tools/dpdk_nic_bind.py --status > > > > Network devices using DPDK-compatible driver > > ============================================ > > > > > > Network devices using kernel driver > > =================================== > > 0000:00:03.0 '82540EM Gigabit Ethernet Controller' if=ens3 drv=e1000 > > unused=igb_uio *Active* > > 0000:00:04.0 'Virtio network device' if= drv=virtio-pci unused=igb_uio > > 0000:00:05.0 'Virtio network device' if= drv=virtio-pci unused=igb_uio > > > > Other network devices > > ===================== > > > > > > > > ./dpdk_nic_bind.py --bind=igb_uio 00:04.0 00:05.0 > > > > > > > > ./x86_64-softmmu/qemu-system-x86_64 -cpu host -boot c -hda > > /home/utils/images/vm1.img -m 2048M -smp 3 --enable-kvm -name 'VM1' > > -nographic -vnc :1 -pidfile /tmp/vm1.pid -drive > > file=fat:rw:/tmp/qemu_share,snapshot=off -monitor > > unix:/tmp/vm1monitor,server,nowait -net none -no-reboot -mem-path > > /dev/hugepages -mem-prealloc -netdev > > type=tap,id=net1,script=no,downscript=no,ifname=usvhost1,vhost=on -device > > virtio-net-pci,netdev=net1,mac=00:16:3e:00:03:03,csum=off,gso=off,guest_tso4=off,guest_tso6=off,guest_ecn=off > > -netdev type=tap,id=net2,script=no,downscript=no,ifname=usvhost2,vhost=on > > -device > > > > virtio-net-pci,netdev=net2,mac=00:16:3e:00:03:04,csum=off,gso=off,guest_tso4=off,guest_tso6=off,guest_ecn=off > > > > > > > > > > ---------- > > thanks > > srinivas. > > _______________________________________________ > > Dpdk-ovs mailing list > > Dpdk-ovs@lists.01.org > > https://lists.01.org/mailman/listinfo/dpdk-ovs > > > > > > -- > thanks > srinivas.