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SubjectRe: [PATCH net-next 1/2] net: marvell: Implement TC flower offload
Hi Vladimir,

On Wed, Jun 16, 2021 at 03:54:53AM +0300, Vladimir Oltean wrote:
> On Tue, Jun 15, 2021 at 03:54:43PM +0300, Vadym Kochan wrote:
> > +static int prestera_port_set_features(struct net_device *dev,
> > + netdev_features_t features)
> > +{
> > + netdev_features_t oper_features = dev->features;
> > + int err;
> > +
> > + err = prestera_port_handle_feature(dev, features, NETIF_F_HW_TC,
> > + prestera_port_feature_hw_tc);
>
> Why do you even make NETIF_F_HW_TC able to be toggled and not just fixed
> to "on" in dev->features? If I understand correctly, you could then delete
> a bunch of refcounting code whose only purpose is to allow that feature
> to be disabled per port.
>

The only case where it can be used is when user want to disable TC
offloading and apply set of rules w/o skip_hw.

So you think it is OK to not having an ability to disable offloading at
all ?

> > +
> > + if (err) {
> > + dev->features = oper_features;
> > + return -EINVAL;
> > + }
> > +
> > + return 0;
> > +}

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