From: Jingjing Wu <jingjing.wu@intel.com>
Date: Tue, 15 Dec 2015 14:52:48 +0000 (+0800)
Subject: i40e: fix max frame size
X-Git-Tag: spdx-start~7708
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=8a26a8ff829c0ad83ccbdf09162314abd04ef4eb;p=dpdk.git

i40e: fix max frame size

In FreeBsd driver, the max frame size is changed to MTU, but not
keep the default value defined in DataSheet. When DPDK runs on that
NIC, the configured value is not expected.
This patch sets the max frame size to default when initialization.

Fixes: 4861cde46116 ("i40e: new poll mode driver")

Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
---

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 22b240cc6e..bf6220dd7d 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -919,6 +919,11 @@ eth_i40e_dev_init(struct rte_eth_dev *dev)
 	 */
 	i40e_add_tx_flow_control_drop_filter(pf);
 
+	/* Set the max frame size to 0x2600 by default,
+	 * in case other drivers changed the default value.
+	 */
+	i40e_aq_set_mac_config(hw, I40E_FRAME_SIZE_MAX, TRUE, 0, NULL);
+
 	/* initialize mirror rule list */
 	TAILQ_INIT(&pf->mirror_list);