[PATCH v1 1/1] net/nbl: allow MTU change when port is started

Dimon Zhao dimon.zhao at nebula-matrix.com
Tue Oct 20 11:42:27 CEST 2026


Remove the dev_started check in nbl_mtu_set() to allow MTU
configuration while the port is started.

Signed-off-by: Dimon Zhao <dimon.zhao at nebula-matrix.com>
---
 drivers/net/nbl/nbl_dev/nbl_dev.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/net/nbl/nbl_dev/nbl_dev.c b/drivers/net/nbl/nbl_dev/nbl_dev.c
index e41732ccd3..2c1e39f559 100644
--- a/drivers/net/nbl/nbl_dev/nbl_dev.c
+++ b/drivers/net/nbl/nbl_dev/nbl_dev.c
@@ -753,18 +753,11 @@ int nbl_xstats_reset(struct rte_eth_dev *eth_dev)
 
 int nbl_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu)
 {
-	struct rte_eth_dev_data *dev_data = eth_dev->data;
 	struct nbl_adapter *adapter = ETH_DEV_TO_NBL_DEV_PF_PRIV(eth_dev);
 	struct nbl_dev_mgt *dev_mgt = NBL_ADAPTER_TO_DEV_MGT(adapter);
 	struct nbl_dispatch_ops *disp_ops = NBL_DEV_MGT_TO_DISP_OPS(dev_mgt);
 	int ret;
 
-	/* mtu setting is forbidden if port is started */
-	if (dev_data->dev_started) {
-		NBL_LOG(ERR, "port %d must be stopped before configuration", dev_data->port_id);
-		return -EBUSY;
-	}
-
 	ret = disp_ops->set_mtu(NBL_DEV_MGT_TO_DISP_PRIV(dev_mgt), dev_mgt->net_dev->vsi_id, mtu);
 	if (ret)
 		return ret;
-- 
2.34.1



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