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

[Stephen Hemminger]

On Wed, 11 Apr 2018 12:01:09 +0000
"Weglicki, MichalX" <michalx.weglicki at intel.com> wrote:

> 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.

What host? It could be that ixgbevf communication (over mailbox) is not supported
by the older PF driver on the host.