[dpdk-dev] [PATCH 0/2] Mark shared pthread mutex

[Ferruh Yigit]

On 3/16/2021 4:28 PM, Stephen Hemminger wrote:
> On Mon, 15 Mar 2021 12:27:20 -0700
> Stephen Hemminger <stephen at networkplumber.org> wrote:
> 
>> This fixes two places where pthread_mutex was being unsafely
>> used between primary secondary process.
>>
>> These patches are necessary but not sufficient to address Bug 662
>>
>> Stephen Hemminger (2):
>>    ethdev: make flow API primary/secondary process safe
>>    net/failsafe: fix primary/secondary mutex
>>
>>   drivers/net/failsafe/failsafe.c | 5 +++++
>>   lib/librte_ethdev/rte_ethdev.c  | 6 +++++-
>>   2 files changed, 10 insertions(+), 1 deletion(-)
>>
> 
> The following drivers have the same kind of issue.
> 
> Drivers with unsafe pthread_mutex:
> 
> net/
> 	af_xdp
> 	atlantic
> 	axgbe
> 	bnxt
> 	ena
> 	failsafe (see patch #2)
> 	hinic
> 	mlx5
> 	qede
> 	vhost
> 	virtio
> 
> raw/	
> 	ifpga
> vdpa/
> 	ifc
> 	mlx5
> 
> 
> Another alternative would be to create a DPDK wrapper (rte_mutex?)
> which had the proper semantics. That might make the Windows port easier.
> But it would make backport to stable harder.
> 
> 
> If this does not get fixed in April, we should change documentation
> to warn users.
> 
> 

+Anatoly as our multi process maintainer.

And most of the above nics already doesn't claim the multi process support (in 
.ini files), the ones that claims the support:
mlx[45]
bnxt
hinic
qede
virtio