netdev - Re: [PATCH net-next v3 0/8] xdp: make stack perform remove and add selftests

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Date:   Sun, 3 Dec 2017 01:21:25 +0100
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Jakub Kicinski <jakub.kicinski@...ronome.com>,
        netdev@...r.kernel.org
Cc:     oss-drivers@...ronome.com, jiri@...nulli.us,
        alexei.starovoitov@...il.com
Subject: Re: [PATCH net-next v3 0/8] xdp: make stack perform remove and add
 selftests

On 12/02/2017 12:08 AM, Jakub Kicinski wrote:
> Hi!
> 
> The purpose of this series is to add a software model of BPF offloads
> to make it easier for everyone to test them and make some of the more
> arcane rules and assumptions more clear.
> 
> The series starts with 3 patches aiming to make XDP handling in the
> drivers less error prone.  Currently driver authors have to remember
> to free XDP programs if XDP is active during unregister.  With this
> series the core will disable XDP on its own.  It will take place
> after close, drivers are not expected to perform reconfiguration
> when disabling XDP on a downed device.
> 
> Next two patches add the software netdev driver, followed by a python
> test which exercises all the corner cases which came to my mind.
> 
> Test needs to be run as root.  It will print basic information to
> stdout, but can also create a more detailed log of all commands
> when --log option is passed.  Log is in Emacs Org-mode format.
> 
>   ./tools/testing/selftests/bpf/test_offload.py --log /tmp/log
> 
> Last two patches replace the SR-IOV API implementation of dummy.
> 
> v3:
>  - move the freeing of vfs to release (Phil).
> v2:
>  - free device from the release function;
>  - use bus-based name generatin instead of netdev name.
> v1:
>  - replace the SR-IOV API implementation of dummy;
>  - make the dev_xdp_uninstall() also handle the XDP generic (Daniel).

Series applied to bpf-next, thanks Jakub!