Depending on which version of DPKD you are using a VF on the 700 Series will use either the i40evf or iavf PMD. In 21.11 the i40evf PMD has been removed and will use iavf for both 700 and 800 Series controllers. The 700 Series does not use the 1889 device ID since iavf was introduced after we released the 700 Series. The kernel mode iavf driver has supported both the 700 and 800 Series VF device ids for several years now but it took a while to transition DPDK over to a single iavf driver.

If the i40evf PMD is not available in a VM and the iavf PMD is then you can pass the 1889 device ID but this is would only be required on pre-21.11 DPDK version.

-device vfio-pci,x-pci-device-id=0x1889,host=03:0a.0.

Brian Johnson

On Mar 8, 2022, at 1:19 AM, Igor Genuino <igenuino@sandvine.com> wrote:


Hello all users.
I need some support.
The following text isn't clear for me:


"To use DPDK IAVF PMD on Intel® 700 Series Ethernet Controller, the device id (0x1889) need to specified during device assignment in hypervisor. " (https://doc.dpdk.org/guides/nics/intel_vf.html)



I am using an i40e in the hypervisor.

Is it necessary to set the device id to 0x1889 in order to use DPDK IAVF?

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