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From fcbd40d4327b36725c4de9f33f57809edc359f4a 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
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 ca515dd..bb81b15 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -1223,11 +1223,6 @@ 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);
@@ -9432,10 +9427,6 @@ 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
--
2.7.4
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