[dpdk-stable] patch 'net/i40e: fix setting TPID with AQ command' has been queued to LTS release 17.11.4

[Yongseok Koh <yskoh@mellanox.com>]

Hi,

FYI, your patch has been queued to LTS release 17.11.4

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 07/28/18. So please
shout if anyone has objections.

Thanks.

Yongseok

---
>From fd25d574f08832c8a86affb12f49f0fbabd674d4 Mon Sep 17 00:00:00 2001
From: Beilei Xing <beilei.xing@intel.com>
Date: Thu, 5 Jul 2018 15:03:08 +0800
Subject: [PATCH] net/i40e: fix setting TPID with AQ command

[ upstream commit 2c99142384db1796e42209f5fc112c8babc402c0 ]

TPID can be set by set_switch_config AdminQ command on
new FW release. But find fail to set 0x88A8 on some NICs.
According to the datasheet, Switch Tag value should not
be identical to either the First Tag or Second Tag values.
So set something other than common Ethertype for internal
switching.

Fixes: 73cd7d6dc8e1 ("net/i40e: use set switch AQ instead of register setting")

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
---
 drivers/net/i40e/i40e_ethdev.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index afdeeab5a..70c51ff37 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -1211,6 +1211,13 @@ eth_i40e_dev_init(struct rte_eth_dev *dev)
 	hw->bus.func = pci_dev->addr.function;
 	hw->adapter_stopped = 0;
 
+	/*
+	 * Switch Tag value should not be identical to either the First Tag
+	 * or Second Tag values. So set something other than common Ethertype
+	 * for internal switching.
+	 */
+	hw->switch_tag = 0xffff;
+
 	/* Check if need to support multi-driver */
 	i40e_support_multi_driver(dev);
 
-- 
2.11.0