From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sonic312-22.consmr.mail.ne1.yahoo.com (sonic312-22.consmr.mail.ne1.yahoo.com [66.163.191.203]) by dpdk.org (Postfix) with ESMTP id B2ABA2C18 for ; Fri, 20 Jul 2018 00:22:26 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1532038946; bh=QEgHWjqm8KAh0zpXcN5tyOMnU6//WUAY0i6L3QyyuLw=; h=Date:From:To:Subject:References:From:Subject; b=DmMibclI59vG/qJ+r73BC2d+a8KklTt2477YrPtGRiAbrzifA4ghgyGsQkd9SNX1uJbjs3GbEIsF7QeevSTgwM58KYTbmL//2UitMx0MaSo5Q3BdPDiATViQRc85Nv81xWxEvvUeho+frB99uVRYeJ6vIszvb9iTREwdfGhYkZhZNcfEybDuKlIVcCg8La3np92rSoAr5/lpDPvp2XiurxOI7txbyRsVUjhkj9EyuNiOY3Eqfhusyy6N7m8BA2t9/vhQAq5vpwCtG1RDnKm2n3yT+zjpWiPeMyLqQfJGcHwSLJsJf+gIOhdZY9ZkNUqHBtibW6J6BwXoVURXphgHyQ== X-YMail-OSG: 3Vf5ho8VM1nY0GPasZmEJOOJ7246vI5mCMOd4ejfenSS_TXAMNoALXjFXRW19ub 2PayRhfIcLbx.232KP6T2BCavd5cLlPXjFXl4WuugjiUNVRzEv9GdfeTnO1km7cF0rcpX5I4py3K 8YbJCSojMaKJ6qFeYFVXZVKIGgrMcRXZDBBR8QyqosoSxO.AHGySTZpN4e6iWbjC5_ON2B0CI6md ionEvY_fpWhqwk7x8hRfJeBxhqGp_qksGg9zMfIdqwY0LVBFRf5i4dka9cx4qq0zzfLEpHLNQMJF V6q0jCCfUl0.6.TLJlgjrmkTKRG8fa72P9R1AFobwjkkiM7HCK2iSN2li1_5Ln5D9WuHTB28PN5c pLd.PJVI4OrivHlPnZq9d2c0JiJ5iECZXGKjct8cR2XcABpQd5mI9Qzeb_l06MTyoTajYAYbSFEm m7gwoznwxSX1DoSnJgsL06wOlFAxh79_mAz.Kae1R38sh2Bxj1IriK3dd2fwhmzKvo7BSGFGJkNS Qdv6tW3z31g3NL5FzqKiDl13gUXrAVcNvoSi_2gjasn7WOGAqeVIxSWTuHhzRZywFuoKIuGD0FV2 I37XBodQNkDte.mDx7xtRQOr7f1ayVPPA748yTqcDcpvTw6ARk.HZNcfH6dnMP9Y2U9MhsFapBAH UqZ1_0f2m3ZP26TwKe2C1_f8SBfJ_m3KTVJQqr3wFz6St_bK4onjmncD5Xs52T9R6Kt_pcvfkG.6 ooF53ZIre6xjFcb5dsXagowL02fOGaen4potfUqDfQfyKXWSDHqe2FRWTCioGTXM.SNJfSwbhk93 F2TjTkUKLB_Mr6K_eNrU9QbdkUCd1Obft9y0DhDmaAKdKzdqTTd6JnMM5sjDOmowd1j.TaLnQfnM EbKD9xVzVj3D7MD1xznSuxgT2fVWM_tv.hwnIeYqLVEoERMXWGrTBjbjinYqnMByS5aGQPSXInYl D3gSchqk- Received: from sonic.gate.mail.ne1.yahoo.com by sonic312.consmr.mail.ne1.yahoo.com with HTTP; Thu, 19 Jul 2018 22:22:26 +0000 Date: Thu, 19 Jul 2018 22:22:24 +0000 (UTC) From: Kandy Palanisamy To: "users@dpdk.org" Message-ID: <441815769.67094.1532038944327@mail.yahoo.com> MIME-Version: 1.0 References: <441815769.67094.1532038944327.ref@mail.yahoo.com> X-Mailer: WebService/1.1.12144 YMailNorrin Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-users] TestPMD: Unable to create TAP interface X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Jul 2018 22:22:27 -0000 Hi, I tried to create a tap device using TestPMD as follows: =C2=A0=C2=A0=C2=A0=C2=A0 testpmd -l 0-3 -n 4 --vdev=3Dnet_tap0 -- -i But, I get the error: PMD: Initializing pmd_tap for net_tap0 as dtap0 PMD: Unable to create TAP interface PMD: dtap0: tun_alloc() failed. Appreciate if someone could help what I am missing. Here is the complete log, and list of modules loaded and the ixgbe interfac= e bound to dpdk.=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D root@intel-corei7-64:/tmp# /usr/bin/testpmd -l 0-3 -n 4 --vdev=3Dnet_tap0 -= - -i EAL: Detected 16 lcore(s) EAL: Multi-process socket /var/run/.rte_unix EAL: Probing VFIO support... EAL: NUMA support not available consider that all memory is in socket_id 0 EAL: PCI device igb_uio 0000:04:00.0: uio device registered with irq 50 0000:04:00.0 on NUMA socket 0 EAL:=C2=A0=C2=A0 probe driver: 8086:15ac net_ixgbe EAL: PCI device 0000:04:00.1 on NUMA socket 0 EAL:=C2=A0=C2=A0 probe driver: 8086:15ac net_ixgbe EAL: PCI device 0000:0a:00.0 on NUMA socket 0 EAL:=C2=A0=C2=A0 probe driver: 8086:1533 net_e1000_igb PMD: Initializing pmd_tap for net_tap0 as dtap0 PMD: Unable to create TAP interface PMD: dtap0: tun_alloc() failed. PMD: TAP Unable to initialize net_tap0 vdev_probe(): failed to initialize net_tap0 device EAL: Bus (vdev) probe failed. Interactive-mode selected testpmd: create a new mbuf pool : n=3D171456, size=3D21= 76, socket=3D0 testpmd: preferred mempool ops selected: ring_mp_mc Warning! port-topology=3Dpaired and odd forward ports number, the last port= will pair with itself. Configuring Port 0 (socket 0) Port 0: 00:13:95:2B:DC:7E Checking link statuses... Done testpmd>=20 root@intel-corei7-64:/tmp# lsmod Module=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Size=C2=A0 Used by rte_kni=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0 20480=C2=A0 0 igb_uio=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0 16384=C2=A0 0 uio=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 16384=C2=A0 1 igb_uio 8021q=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 24576=C2=A0 0 nfc=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 69632=C2=A0 0 bnep=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 20480=C2=A0 2 intel_rapl=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0 20480=C2=A0 0 igb=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 167936=C2=A0 0 ixgbe=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0 249856=C2=A0 0 mei_me=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0 28672=C2=A0 0 x86_pkg_temp_thermal=C2=A0=C2=A0=C2=A0 16384=C2=A0 0 intel_powerclamp=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 16384=C2=A0 0 mei=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 61440=C2=A0 1 mei_me mdio=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 16384=C2=A0 1 ixgbe coretemp=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0 16384=C2=A0 0 root@intel-corei7-64:/tmp#=20 root@intel-corei7-64:/tmp#=20 root@intel-corei7-64:/tmp# dpdk-devbind --status Network devices using DPDK-compatible driver =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 0000:04:00.0 'Ethernet Connection X552 10 GbE SFP+ 15ac' drv=3Digb_uio unus= ed=3Dixgbe Network devices using kernel driver =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 0000:04:00.1 'Ethernet Connection X552 10 GbE SFP+ 15ac' if=3Deth2 drv=3Dix= gbe unused=3Digb_uio=20 0000:0a:00.0 'I210 Gigabit Network Connection 1533' if=3Deth0 drv=3Digb unu= sed=3Digb_uio *Active* ::Thanks for your help,Kandy