On Thu, 4 Oct 2018 11:17:53 +0200
".." <[email protected]> wrote:

> Hi dpdk-users!
> 
> I have some new 25G cards:
> Intel Corporation Ethernet Network Adapter XXV710-2
> 
> I am using the latest i40e driver
> 
> filename:
> /lib/modules/3.10.0-862.11.6.el7.x86_64/updates/drivers/net/ethernet/intel/i40e/i40e.ko
> version:        2.4.10
> license:        GPL
> description:    Intel(R) 40-10 Gigabit Ethernet Connection Network Driver
> author:         Intel Corporation, <[email protected]>
> retpoline:      Y
> 
> When I try to do dpdk-devbind I get the following error
> 
> Error: bind failed for 0000:05:00.0 - Cannot bind to driver uio_pci_generic
> 
> This shows in dmesg
> [240097.901062] i40e 0000:05:00.1: removed PHC from ens2f1
> [240097.966118] i40e 0000:05:00.1: Set default VSI failed, err
> I40E_ERR_ADMIN_QUEUE_ERROR, aq_err I40E_AQ_RC_EINVAL
> [240097.966122] i40e 0000:05:00.1: Setting promiscuous on failed on PF, err
> I40E_ERR_ADMIN_QUEUE_ERROR aq_err I40E_AQ_RC_EINVAL
> 
> I am moving from some much older 1G cards I had, but they were binding ok,
> however it was the igb driver.
> 
> I can seem to find much, I guess these are quite new cards and the driver
> is up to date as well, a bug maybe?
> 
> Thanks
> 
> Roland

Make sure you update the firmware on the  Intel card before doing anything else.
Also you should use VFIO if at all possible.

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