From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tetsuya Mukawa Subject: Does virtio-net PMD require specific QEMU virtio-net parameters? Date: Sun, 01 Feb 2015 19:02:31 +0900 Message-ID: <54CDF9B7.9000404@igel.co.jp> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable To: "dev-VfR2kkLFssw@public.gmane.org" Return-path: List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" Hi, I cannot invoke virtio-net PMD at least on Ubuntu12 and Ubuntu14 QEMU gue= st. This behavior might be seen on other users environment also, so I report = it. =2E Here is error log. $ ./testpmd -c f -n 1 -- -i =2E...snip.... Configuring Port0 (socket0) Fail to configuring port 0 tx queues. EAL: Error - exiting with code: 1 Cause: Start ports failed $ As a result of bisect, it seems this behavior is caused by following patc= h. 61b16f0f167a331e65f0729b3554ded0440b545b virtio: check for transmit checksum config error After revert the patch, I haven't seen the error. My question is that after applying this patch, should I specify some specific parameters for QEMU virtio-net device? Here is my parameters of virtio-net. -device virtio-net-pci,netdev=3Dhostnet1,id=3Dnet1,mac=3D52:54:00:c6:a7:44,bus=3D= pci.0,addr=3D0x5 \ -netdev tap,id=3Dhostnet1 Also could someone reproduce the same issue? My host is ubuntu14, and I am using QEMU I've got using apt-get. Thanks, Tetsuya