[dpdk-stable] patch 'net/i40e: fix setting TPID with AQ command' has been queued to stable release 18.05.1

[Christian Ehrhardt]

Hi,

FYI, your patch has been queued to stable release 18.05.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 08/01/18. So please
shout if anyone has objections.

Thanks.

Christian Ehrhardt <christian.ehrhardt at canonical.com>

---
>From 3abd2b301dcd554c44a0fa7bc6fd7c8231e59e37 Mon Sep 17 00:00:00 2001
From: Beilei Xing <beilei.xing at 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 at intel.com>
Acked-by: Qi Zhang <qi.z.zhang at 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 4b4f53b32..ee0781335 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -1236,6 +1236,13 @@ eth_i40e_dev_init(struct rte_eth_dev *dev, void *init_params __rte_unused)
 	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);
 
-- 
2.17.1