Hi Bruce, Please find my comment in lined.
On Fri, Nov 7, 2014 at 9:00 PM, Bruce Richardson <bruce.richardson at intel.com > wrote: > On Fri, Nov 07, 2014 at 08:31:34PM +0530, Manoj Viswanath wrote: > > Hi Bruce, > > > > I was not doing anything specific for binding the NICs to IGB_UIO (like > > invoking "dpdk_nic_bind.py" script explicitly) when using my application > > with DPDK 1.6.0. The e1000 devices assigned via virt-manager to the VM > were > > automatically getting picked up and initialized by IGB_UIO within each > VM. > > > > The same is not working with DPDK 1.7.1 now. > > > > I tried exporting the "dpdk_nic_bind.py" script into my VM (running DPDK > > 1.7.1) and tried to check the status. The emulated devices were shown as > > neither bound to kernel nor to IGB_UIO as evident from below output:- > > > > > <---------------------------------------------------------------------------------------------------> > > Network devices using DPDK-compatible driver > > ============================================ > > <none> > > > > Network devices using kernel driver > > =================================== > > 0000:00:03.0 'Virtio network device' if= drv=virtio-pci unused=igb_uio > > > > Other network devices > > ===================== > > 0000:00:04.0 '82540EM Gigabit Ethernet Controller' unused=igb_uio > > 0000:00:05.0 '82540EM Gigabit Ethernet Controller' unused=igb_uio > > > <---------------------------------------------------------------------------------------------------> > > > > When i tried to forcefully bind the NICs using the "--bind=igb_uio" > option > > Was there any output of the dpdk_nic_bind script? What does the output of > it with --status show afterwards? > > ? [MANOJ]? ?Yes. Please refer below output:- ******************************************************************** Network devices using DPDK-compatible driver ============================================ 0000:00:04.0 '82540EM Gigabit Ethernet Controller' drv=igb_uio unused= 0000:00:05.0 '82540EM Gigabit Ethernet Controller' drv=igb_uio unused= Network devices using kernel driver =================================== 0000:00:03.0 'Virtio network device' if= drv=virtio-pci unused=igb_uio Other network devices ===================== <none>? ******************************************************************** ?However, when i start the DPDK application, i am getting the error log as indicated in earlier mail. ? The difference with DPDK 1.6.1 is that at the same stage IGB_UIO has already bound the assigned devices without having to explicitly run the "dpdk_nic_bind.py". Please find below the application log when run with DPDK 1.6.0:- ?******************************************************************** Network devices using DPDK-compatible driver ============================================ 0000:00:04.0 '82540EM Gigabit Ethernet Controller' drv=igb_uio unused= 0000:00:08.0 '82540EM Gigabit Ethernet Controller' drv=igb_uio unused= Network devices using kernel driver =================================== 0000:00:03.0 'Virtio network device' if= drv=virtio-pci unused=igb_uio Other network devices ===================== <none> ********************************************************************? ?Kindly note that in both cases, logs have been taken after loading IGB_UIO prior to starting DPDK application. ? ?[/MANOJ]? Regards, > /Bruce > > ?Regards, MANOJ
