net/mrvl: allow changing MTU before port init

DPDK updates MTU once mtu_set() callback returns success.
Since PMD changes port's MTU to dev->mtu every time device is
started it is safe to call mtu_set() before MUSDK ppio was initialized.

Fixes: c0511a8f741f ("net/mrvl: check if ppio is initialized")
Cc: stable@dpdk.org
Signed-off-by: Tomasz Duszynski <tdu@semihalf.com>

diff --git a/drivers/net/mrvl/mrvl_ethdev.c b/drivers/net/mrvl/mrvl_ethdev.c
index 4294c56..a011675 100644 (file)
--- a/drivers/net/mrvl/mrvl_ethdev.c
+++ b/drivers/net/mrvl/mrvl_ethdev.c
@@ -379,7 +379,7 @@ mrvl_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
                return -EINVAL;
 
        if (!priv->ppio)
-               return -EPERM;
+               return 0;
 
        ret = pp2_ppio_set_mru(priv->ppio, mru);
        if (ret)