On 10/10/2022 11:17 AM, Junfeng Guo wrote:
Support dev_ops mtu_set.
Signed-off-by: Xiaoyun Li <xiaoyun...@intel.com>
Signed-off-by: Junfeng Guo <junfeng....@intel.com>
<...>
+static int
+gve_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+ struct gve_priv *priv = dev->data->dev_private;
+ int err;
+
+ if (mtu < RTE_ETHER_MIN_MTU || mtu > priv->max_mtu) {
+ PMD_DRV_LOG(ERR, "MIN MTU is %u MAX MTU is %u", RTE_ETHER_MIN_MTU,
priv->max_mtu);
+ return -EINVAL;
+ }
+
+ /* mtu setting is forbidden if port is start */
+ if (dev->data->dev_started) {
+ PMD_DRV_LOG(ERR, "Port must be stopped before configuration");
+ return -EBUSY;
+ }
+
+ dev->data->dev_conf.rxmode.mtu = mtu + RTE_ETHER_HDR_LEN;
it is 'dev->data->mtu' that holds latest MTU value.
'dev_conf.rxmode.mtu' is the config requested from user, no need to
update that.
And since 'dev->data->mtu' already updated by 'rte_eth_dev_set_mtu()',
can drop above line.
