[dpdk-stable] [PATCH] ethdev: limit maximum number of queues

[David Marchand]

On Wed, Nov 27, 2019 at 3:06 PM Ferruh Yigit <ferruh.yigit at intel.com> wrote:
>
> On 11/27/2019 1:42 PM, Thomas Monjalon wrote:
> > A buffer overflow happens in testpmd with some drivers
> > since the queue arrays are limited to RTE_MAX_QUEUES_PER_PORT.
> >
> > The advertised capabilities of mlx4, mlx5 and softnic
> > for the number of queues were the maximum number: UINT16_MAX.
> > They must be limited by the configured RTE_MAX_QUEUES_PER_PORT
> > that applications expect to be respected.
> >
> > The limitation is applied in above drivers having no limitation,
> > and at ethdev level (function rte_eth_dev_info_get), in order
> > to force the configured limit for all drivers.
>
> The limit is not device limit, should we reflect it into PMDs?
> Why not keep the limit only in the ethdev?

+1.


-- 
David Marchand