From: Ivan Ilchenko <ivan.ilche...@oktetlabs.ru>
rte_eth_dev_configure() always sets MTU to either dev_conf.rxmode.mtu
or RTE_ETHER_MTU if application doesn't provide the value.
So, there is no point to allow rte_eth_dev_set_mtu() before since
set value will be overwritten on configure anyway.
Fixes: 1bb4a528c41f ("ethdev: fix max Rx packet length")
Signed-off-by: Ivan Ilchenko <ivan.ilche...@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <andrew.rybche...@oktetlabs.ru>
---
lib/ethdev/rte_ethdev.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/lib/ethdev/rte_ethdev.c b/lib/ethdev/rte_ethdev.c
index 4ea5a657e0..0d7dd68dc1 100644
--- a/lib/ethdev/rte_ethdev.c
+++ b/lib/ethdev/rte_ethdev.c
@@ -3728,6 +3728,13 @@ rte_eth_dev_set_mtu(uint16_t port_id, uint16_t mtu)
return ret;
}
+ if (dev->data->dev_configured == 0) {
+ RTE_ETHDEV_LOG(ERR,
+ "Port %u must be configured before MTU set\n",
+ port_id);
+ return -EINVAL;
+ }
+
ret = (*dev->dev_ops->mtu_set)(dev, mtu);
if (ret == 0)
dev->data->mtu = mtu;
--
2.30.2
