[dpdk-dev] [Bug 644] [dpdk-19.11.7]usertools/dpdk-devbind.py: bind NIC port to DPDK failed in vm.

[Bruce Richardson]

On Mon, Mar 01, 2021 at 01:48:49AM +0000, bugzilla at dpdk.org wrote:
> https://bugs.dpdk.org/show_bug.cgi?id=644
> 
>             Bug ID: 644
>            Summary: [dpdk-19.11.7]usertools/dpdk-devbind.py: bind NIC port
>                     to DPDK failed in vm.
>            Product: DPDK
>            Version: 19.11
>           Hardware: All
>                 OS: All
>             Status: UNCONFIRMED
>           Severity: normal
>           Priority: Normal
>          Component: other
>           Assignee: dev at dpdk.org
>           Reporter: weix.ling at intel.com
>   Target Milestone: ---
> 
> DPDK version: 
>  19.11.7-rc1(cbcd84e3304f43623efe34236f548a1bdae68ca4)
> Other software versions: qemu-4.2.1
> OS: Ubuntu 20.04.1 LTS/5.10.0-051000-generic
> Compiler: gcc version 9.3.0 (Ubuntu 9.3.0-10ubuntu2)
> Hardware platform: Intel(R) Xeon(R) Platinum 8280M CPU @ 2.70GHz
> NIC hardware: fortville_spirit
> NIC firmware: 5.10.0-051000-generic/8.00 0x80008b8a 1.2766.0
> Test Setup
> Steps to reproduce
> List the steps to reproduce the issue.
> 
> #1.Bind nic port to vfio-pci on host
> 
> usertools/dpdk-devbind.py --force --bind=vfio-pci 0000:af:00.0 0000:af:00.1
> 
Unrelated to this bug, don't use "--force" flag with dpdk-devbind unless
the script won't let you unbind a port from the kernel and you are
absolutely sure it is safe to do so. It should never be routinely used.

/Bruce