[dpdk-dev] Problem with using VF: Initialization Failure: -15

[Weglicki, MichalX]

Hello,

I'm trying to test very simple scenario, creating two VFs and testing it with test-pmd. Unfortunately I can't make it to work
DPDK Version: v17.11 (I've checked also 18.02)
NIC: Niantic 82599ES 10-Gigabit SFI/SFP+ Network Connection 10fb
Kernel: 4.4.0-116-generic #140-Ubuntu SMP Mon Feb 12 21:23:04 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

Steps:
Creating two VFs. Binding each VF to a driver (I also tried vfio_pci with same results):
../dpdk/usertools/dpdk-devbind.py --bind=igb_uio 0000:81:10.0
../dpdk/usertools/dpdk-devbind.py --bind=igb_uio 0000:81:10.1

./testpmd -c 0x3 -n 4 --socket-mem 512 -- --burst=64 -i --txqflags=0xf00 --disable-hw-vlan
EAL: Detected 56 lcore(s)
EAL: Probing VFIO support...
EAL: VFIO support initialized
EAL: PCI device 0000:03:00.0 on NUMA socket -1
EAL:   Invalid NUMA socket, default to 0
EAL:   probe driver: 8086:1521 net_e1000_igb
EAL: PCI device 0000:03:00.3 on NUMA socket -1
EAL:   Invalid NUMA socket, default to 0
EAL:   probe driver: 8086:1521 net_e1000_igb
EAL: PCI device 0000:05:00.0 on NUMA socket -1
EAL:   Invalid NUMA socket, default to 0
EAL:   probe driver: 8086:10fb net_ixgbe
EAL: PCI device 0000:05:00.1 on NUMA socket -1
EAL:   Invalid NUMA socket, default to 0
EAL:   probe driver: 8086:10fb net_ixgbe
EAL: PCI device 0000:81:00.0 on NUMA socket -1
EAL:   Invalid NUMA socket, default to 0
EAL:   probe driver: 8086:10fb net_ixgbe
EAL: PCI device 0000:81:00.1 on NUMA socket -1
EAL:   Invalid NUMA socket, default to 0
EAL:   probe driver: 8086:10fb net_ixgbe
EAL: PCI device 0000:81:10.0 on NUMA socket -1
EAL:   Invalid NUMA socket, default to 0
EAL:   probe driver: 8086:10ed net_ixgbe_vf
PMD: eth_ixgbevf_dev_init(): VF Initialization Failure: -15
EAL: Requested device 0000:81:10.0 cannot be used
EAL: PCI device 0000:81:10.1 on NUMA socket -1
EAL:   Invalid NUMA socket, default to 0
EAL:   probe driver: 8086:10ed net_ixgbe_vf
PMD: eth_ixgbevf_dev_init(): VF Initialization Failure: -15
EAL: Requested device 0000:81:10.1 cannot be used
EAL: PCI device 0000:83:00.0 on NUMA socket -1
EAL:   Invalid NUMA socket, default to 0
EAL:   probe driver: 8086:10fb net_ixgbe
EAL: PCI device 0000:83:00.1 on NUMA socket -1
EAL:   Invalid NUMA socket, default to 0
EAL:   probe driver: 8086:10fb net_ixgbe
EAL: No probed ethernet devices
Interactive-mode selected

I've investigated the issue, and the problem is with:
diag = hw->mac.ops.reset_hw(hw);
which calls:
e1000_reset_hw_vf
and it calls:
e1000_read_posted_mbx
Which returns: E1000_ERR_MBX (-15)

Is this common issue, or some configuration problem?

Thank you all in advance.

Br,
Michal.