[dpdk-dev] [PATCH v8 2/2] app/testpmd: fix testpmd doesn't show RSS hash offload

[Wang, Jie1X]

> -----Original Message-----
> From: Yigit, Ferruh <ferruh.yigit at intel.com>
> Sent: Monday, September 20, 2021 5:48 PM
> To: Wang, Jie1X <jie1x.wang at intel.com>; dev at dpdk.org
> Cc: Li, Xiaoyun <xiaoyun.li at intel.com>; andrew.rybchenko at oktetlabs.ru;
> thomas at monjalon.net
> Subject: Re: [PATCH v8 2/2] app/testpmd: fix testpmd doesn't show RSS hash
> offload
> 
> On 8/27/2021 9:17 AM, Jie Wang wrote:
> > The driver may change offloads info into dev->data->dev_conf in
> > dev_configure which may cause port->dev_conf and port->rx_conf contain
> > outdated values.
> >
> > This patch updates the offloads info if it changes to fix this issue.
> >
> > Fixes: ce8d561418d4 ("app/testpmd: add port configuration settings")
> >
> > Signed-off-by: Jie Wang <jie1x.wang at intel.com>
> 
> <...>
> 
> > +			/* Apply Rx offloads configuration */
> > +			if (dev_conf_info.rxmode.offloads !=
> > +				port->dev_conf.rxmode.offloads) {
> > +				port->dev_conf.rxmode.offloads =
> > +					dev_conf_info.rxmode.offloads;
> > +				for (k = 0;
> > +				     k < port->dev_info.max_rx_queues;
> > +				     k++)
> > +					port->rx_conf[k].offloads =
> > +
> 	dev_conf_info.rxmode.offloads;
> 
> If queue specific offloads are used, won't this overwrite it with port offload?
> 
> Should we get queue config from device and update queue offloads with it?

Only the first time the driver configures the port, "dev_conf_info.rxmode.offloads" is not equal to "port->dev_conf.rxmode.offloads". So the added code just run 1 time.

But your suggestion is correct, I should update the queue offloads instead of overwriting it.