[dpdk-stable] patch 'net/i40e: fix Rx hang when disable LLDP' has been queued to stable release 16.07.2

[Yuanhan Liu <yuanhan.liu@linux.intel.com>]

Hi,

FYI, your patch has been queued to stable release 16.07.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable
yet. It will be pushed if I get no objections before 11/06/16.
So please shout if anyone has objections.

Thanks.

	--yliu

---
>From 0eb2ca5d015391c8fad324ca5f4b048149f4c427 Mon Sep 17 00:00:00 2001
From: Qi Zhang <qi.z.zhang@intel.com>
Date: Thu, 20 Oct 2016 04:40:13 +0800
Subject: [PATCH] net/i40e: fix Rx hang when disable LLDP

[ upstream commit fcbd40d4327b36725c4de9f33f57809edc359f4a ]

Remove stopping LLDP as a workaround for a known
errata which can cause Rx hang.

Ref: Item #70 from
http://www.intel.com/content/www/us/en/embedded/products/networking/xl710-10-40-controller-spec-update.html

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

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>
---
 drivers/net/i40e/i40e_ethdev.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 4ad98e3..7614525 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -1235,11 +1235,6 @@ eth_i40e_dev_uninit(struct rte_eth_dev *dev)
 	dev->rx_pkt_burst = NULL;
 	dev->tx_pkt_burst = NULL;
 
-	/* Disable LLDP */
-	ret = i40e_aq_stop_lldp(hw, true, NULL);
-	if (ret != I40E_SUCCESS) /* Its failure can be ignored */
-		PMD_INIT_LOG(INFO, "Failed to stop lldp");
-
 	/* Clear PXE mode */
 	i40e_clear_pxe_mode(hw);
 
@@ -9197,10 +9192,6 @@ i40e_dcb_init_configure(struct rte_eth_dev *dev, bool sw_dcb)
 	 * LLDP MIB change event.
 	 */
 	if (sw_dcb == TRUE) {
-		ret = i40e_aq_stop_lldp(hw, TRUE, NULL);
-		if (ret != I40E_SUCCESS)
-			PMD_INIT_LOG(DEBUG, "Failed to stop lldp");
-
 		ret = i40e_init_dcb(hw);
 		/* if sw_dcb, lldp agent is stopped, the return from
 		 * i40e_init_dcb we expect is failure with I40E_AQ_RC_EPERM
-- 
1.9.0