On 12/3/2014 9:25 AM, Malveeka Tewari wrote: > I do have the uio and igb_uio modules loaded. > For my issue, I found a workaround by manually creating /dev/uio0 > using mknod. > But I still get the vfio error. > > If I try "sudo modprobe vfio" but that gives an error that Module vfio > not found. > I tried looking for vfio.ko in the dpdk source tree as well but could > not find that module. > How can I install the vfio module?
VFIO is supplied by kernel :) if you use uio then vfio can be ignored. It is just another way of things in new kernel(version > 3.6). Thanks, Michael > > Thanks! > Malveeka > > > > On Tue, Dec 2, 2014 at 5:12 PM, Qiu, Michael <michael.qiu at intel.com > <mailto:michael.qiu at intel.com>> wrote: > > Hi Malveeka, > > To be sure that you should have [uio, igb_uio] or [uio, > uio_pci_generic] > or [vfio] module loaded. > > Thanks, > Michael > On 12/3/2014 5:44 AM, Malveeka Tewari wrote: > > Hi > > > > I am trying to run the testpmd app as but I get the following > errors: > > EAL: VFIO could not be initialized > > EAL: Cannot open /dev/uio0: No such file or directory > > EAL: Error - exiting with code: 1 > > Cause: Requested device 0000:07:00.0 cannot be used > > > > lsmod shows that the uio module is installed. > > Is there anything that's missing? > > > > Thanks! > > Malveeka > > > > > > > > Output on trying to run testpmd > > > > EAL: Detected 16 lcore(s) > > *EAL: cannot open VFIO container, error 2 (No such file or > directory)* > > *EAL: VFIO support could not be initialized* > > EAL: Setting up memory... > > EAL: Ask a virtual area of 0x200000 bytes > > EAL: Virtual area found at 0x7fe66ac00000 (size = 0x200000) > > EAL: Ask a virtual area of 0xffc00000 bytes > > EAL: Virtual area found at 0x7fe56ae00000 (size = 0xffc00000) > > EAL: Ask a virtual area of 0x200000 bytes > > EAL: Virtual area found at 0x7fe56aa00000 (size = 0x200000) > > EAL: Ask a virtual area of 0xfec00000 bytes > > EAL: Virtual area found at 0x7fe46bc00000 (size = 0xfec00000) > > EAL: Ask a virtual area of 0x400000 bytes > > EAL: Virtual area found at 0x7fe46b600000 (size = 0x400000) > > EAL: Ask a virtual area of 0x400000 bytes > > EAL: Virtual area found at 0x7fe46b000000 (size = 0x400000) > > EAL: Ask a virtual area of 0x400000 bytes > > EAL: Virtual area found at 0x7fe46aa00000 (size = 0x400000) > > EAL: Ask a virtual area of 0x400000 bytes > > EAL: Virtual area found at 0x7fe46a400000 (size = 0x400000) > > EAL: Ask a virtual area of 0x400000 bytes > > EAL: Virtual area found at 0x7fe469e00000 (size = 0x400000) > > EAL: Requesting 2048 pages of size 2MB from socket 0 > > EAL: Requesting 2048 pages of size 2MB from socket 1 > > EAL: TSC frequency is ~2266745 KHz > > EAL: Master core 3 is ready (tid=6cedb800) > > EAL: PCI device 0000:07:00.0 on NUMA socket -1 > > EAL: probe driver: 8086:10fb rte_ixgbe_pmd > > > > > > *EAL: Cannot open /dev/uio0: No such file or directoryEAL: Error > - exiting > > with code: 1 Cause: Requested device 0000:07:00.0 cannot be used* > > > >
