From: Tomasz Duszynski <tdu@semihalf.com>
Date: Thu, 18 Jan 2018 10:57:36 +0000 (+0100)
Subject: net/mrvl: allow changing MTU before port init
X-Git-Tag: spdx-start~62
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=59c796c889c7b1a001b1e3354750baa2ca9bdba9;p=dpdk.git

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 4294c5676e..a0116752eb 100644
--- 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)