SR-IOV 82599 Virtual Function cannot have more than 4 RX/TX queue pair

[PPate7]

Hypervisor: RHEL 7.0 KVM and ESXi 5.5

Hardware HP Blade Server BL 460 with Intel Mezzanine with two 82599 port.

Did setup SR-IOV and was not configure a virtual function to have more than 4 queue pair (RX/TX). As a result we cannot run a dpdk application that has more than 4 fast path cores.

On KVM did upgrade the driver to latest ixgbe-4.1.5 and still did not make any difference.

In this document http://dpdk.org/doc/guides/nics/intel_vf.html http://dpdk.org/doc/guides/nics/intel_vf.html found following is mentioned

• Using the DPDK PMD PF ixgbe driver to enable VF RSS:

Same steps as above to install the modules of uio,

igb_uio, specify max_vfs for PCI device, and launch the DPDK testpmd/example oryour own host daemon application using the DPDK PMD library.

The available queue number(at most4) per VF depends on the total number of pool,

which is determined by the max number of VF at PF initialization stage and thenumber of queue specified in config:

Wanted to know if this is the current limitation ? Is it possible to have more than 4 queue pairs per VF and has anyone able to do it ?

Any help/information is highly appreciated.

thanks

-Pravir

[st4]

Hi PravirPatel,

Thank you for writing to Intel. With regards to your inquiry which is DPDK relevant, please log on to http://premier.intel.com/premier http://premier.intel.com/premier or access your IBL account and click the Intel® Premier Support link to enter issues under the Product Name "Data Plane Development Kit (DPDK)" ,this will submit to the support team.

rgds,

wb

[PPate7]

Tried to submit an issue when enter "Data Plane Development Kit (DPDK)" it seems it is not able to find it from the existing product hence the "Next" button does not get enabled. Even the "Browse Product" come up with no selection when click "Search"

Tried different options by entering different text but no luck.

Texts tried

DPDK

dpdk

Data Plane Development Kit

Data Plane Development Kit (DPDK)

regards

Pravir

[st4]

Hi PravirPatel,

Let me check on this, Apologize for any inconvenience.

rgds,

wb

[st4]

Hi PravirPatel,

Have you tried contact the Intel Business link support group via phone at https://kaveri.intel.com/ibl/help/support.htm Intel&reg Business Link {Support} or you can provide the screenshot for us to check?

rgds,

wb