There were two issues w.r.t the above problem * The uioX major number is not fixed across machine reboots - so I had to keep two-three major numbers in devices.allow section to do this. * The sysfs was mounted as read-only file system. When I remounted it as read-write, all problems went away. I could access 40G ports from inside LXC container.
Thanks, -nagp On Sat, Nov 12, 2016 at 8:02 PM, Nagaprabhanjan Bellaru < nagp.lists at gmail.com> wrote: > Hi, > > The instructions mentioned by Krishnamurthy here: > http://dpdk.org/ml/archives/dev/2014-October/006373.html > > greatly helped to make progress on accessing PCI devices from with in the > container, however, DPDK is not able to open them because of privilege > issues. Has somebody been able to crack this issue? If so, can they please > show me the way to do it? > > -- > EAL: Detected 24 lcore(s) > EAL: No free hugepages reported in hugepages-1048576kB > EAL: Probing VFIO support... > [New Thread 0x7fff8ece0700 (LWP 22134)] > EAL: PCI device 0000:06:00.0 on NUMA socket -1 > EAL: probe driver: 8086:1583 rte_i40e_pmd > EAL: Cannot open /dev/uio0: Operation not permitted > EAL: Error - exiting with code: 1 > Cause: Requested device 0000:06:00.0 cannot be used > [Thread 0x7ffff7fe7700 (LWP 22130) exited] > [Inferior 1 (process 22130) exited with code 01] > -- > > Thanks, > -nagp >
