RE: intel 100 Gbps Network card shutting down after enabling dpdk

["Tkachuk, Georgii" <georgii.tkachuk@intel.com>]

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Please check “sudo dpdk-devbind.py -s” to see if both ports are bound to vfio-pci
And some questions:

What DPDK app are you running?
What are your EAL command line arguments?
What do you mean by going down (as reported by what?)

Thank you,
Georgii

From: Lokesh Chakka <lvenkatakumarchakka@gmail.com>
Sent: Monday, August 01, 2022 12:09 AM
To: users <users@dpdk.org>
Subject: intel 100 Gbps Network card shutting down after enabling dpdk

hello,

Recently I have bought one intel network card

https://ark.intel.com/content/www/us/en/ark/products/210969/intel-ethernet-network-adapter-e8102cqda2.html

The moment I do devbind, cards are shutting down.

$ lspci | grep -i intel
c3:00.0 Ethernet controller: Intel Corporation Ethernet Controller E810-C for QSFP (rev 02)
c3:00.1 Ethernet controller: Intel Corporation Ethernet Controller E810-C for QSFP (rev 02)

$ sudo dpdk-devbind.py -b vfio-pci c3:00.0 c3:00.1

After this, cards are going down. EAL is giving following error

EAL: Requested device 0000:c3:00.1 cannot be used
EAL: Error - exiting with code: 1
Cause: Error: number of ports must be even

Did anyone face this issue or anyone know how to fix the issue?

Thanks & Regards
--
Lokesh Chakka.

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