Re: [dpdk-dev] [PATCH] net/nfp: fix lock file usage

[Alejandro Lucero <alejandro.lucero@netronome.com>]

On Wed, May 23, 2018 at 4:57 PM, Ferruh Yigit <ferruh.yigit@intel.com>
wrote:

> On 5/23/2018 1:28 PM, Alejandro Lucero wrote:
> > DPDK apps can be executed as non-root users but current NFP lock
> > file for avoiding concurrent accesses to CPP interface is precluding
> > this option or requires to modify system file permissions.
> >
> > When the NFP device is bound to VFIO, this driver does not allow this
> > concurrent access, so the lock file is not required at all.
> >
> > OVS-DPDK as executed in RedHat distributions is the main NFP user
> > needing this fix.
> >
> > Fixes: c7e9729da6b5 ("net/nfp: support CPP")
> >
> > Signed-off-by: Alejandro Lucero <alejandro.lucero@netronome.com>
>
> Hi Alejandro,
>
> As far as I understand this is to fix a common use case for nfp, but it
> looks
> like there is already a workaround and only for non-root users.
>
>
There is a patch submitted to stable versions because this lock was also
with the old NSPU interface, but as far as I know, there is no patch yet
for the current upstream tip.



> What is the priority of the patch, only critical but fixes allowed at this
> point, can we push this one to next release?
>

This is critical for us because RedHat wants to support OVS with our card,
and when OVS-DPDK is used, this problem is precluding non-root users to
execute OVS-DPDK.


>
> Thanks,
> ferruh
>
>
>