> On 25 Jan 2017, at 05:41, Yichen Wang (yicwang) <yicw...@cisco.com> wrote:
>
> Hi, VPP guys,
> I have a RHEL 7.3 setup with Intel X710, and want to bring VPP 17.01 on top
> of it. Among all three DPDK drivers:
> (1) uio_pci_generic is not supported on X710
> (http://dpdk.org/dev/patchwork/patch/19820/
> <http://dpdk.org/dev/patchwork/patch/19820/>), and driver bind failed;
> (2) igb_uio will work perfectly, but does not come with RHEL 7.3 kernel
> directly. Have to build from source to have it;
> (3) vfio-pci, which is the only option left.
> According to
> https://wiki.fd.io/view/VPP/Command-line_Arguments#.22dpdk.22_parameters
> <https://wiki.fd.io/view/VPP/Command-line_Arguments#.22dpdk.22_parameters>,
> vfio-pci should be supported. However, when I bring it up, VPP is complaining:
> EAL: Detected 72 lcore(s)
> EAL: No free hugepages reported in hugepages-1048576kB
> EAL: Probing VFIO support...
> EAL: VFIO support initialized
> EAL: Initializing pmd_bond for eth_bond0
> EAL: Create bonded device eth_bond0 on port 0 in mode 2 on socket 0.
> EAL: PCI device 0000:16:00.1 on NUMA socket 0
> EAL: probe driver: 8086:1572 net_i40e
> EAL: 0000:16:00.1 not managed by VFIO driver, skipping
> EAL: PCI device 0000:81:00.1 on NUMA socket 1
> EAL: probe driver: 8086:1572 net_i40e
> EAL: 0000:81:00.1 not managed by VFIO driver, skipping
> DPDK physical memory layout:
> Segment 0: phys:0x4b800000, len:534773760, virt:0x7f9c41a00000, socket_id:0,
> hugepage_sz:2097152, nchannel:0, nrank:0
> Segment 1: phys:0x5f7a800000, len:534773760, virt:0x7f5c6f200000,
> socket_id:1, hugepage_sz:2097152, nchannel:0, nrank:0
> PMD: bond_ethdev_parse_slave_port_kvarg(142) - Invalid slave port value
> (0000:16:00.1) specified
> EAL: Failed to parse slave ports for bonded device eth_bond0
> Apparently VPP is not recognizing the interfaces bound to vfio-pci, therefore
> it couldn’t set up bonding afterwards. However I do have those interfaces
> bound to vfio-pci already, here is the output from dpdk-devbind.py:
> [root@sjc04-pod6-compute-4 tools]# ./dpdk-devbind.py --status
> Network devices using DPDK-compatible driver
> ============================================
> 0000:16:00.1 'Ethernet Controller X710 for 10GbE SFP+' drv=vfio-pci
> unused=i40e
> 0000:81:00.1 'Ethernet Controller X710 for 10GbE SFP+' drv=vfio-pci
> unused=i40e
> Do we ever tested vfio-pci on X710 before, or did I miss anything? Appreciate
> your helps!
> Thanks very much!
> Regards,
> Yichen
Have you specified:
dpdk {
uio-driver vfio-pci
}
in startup.conf?
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