On Wed, 21 Aug 2019 02:16:58 +0000 "Myers, Charles" <charles.my...@spirent.com> wrote:
> > static int > +vmxnet3_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu) > +{ > + if (dev->data->dev_started) { > + PMD_DRV_LOG(ERR, "Port %d must be stopped to configure MTU", > + dev->data->port_id); > + return -EBUSY; > + } > + > + return 0; > +} > + Don't you need to reset the rx ring to change mtu on the fly? At a minimum you need to communicate this value to host through the shared driver page.