From: Qiming Yang <qiming.yang@intel.com>
Date: Wed, 8 Feb 2017 09:14:24 +0000 (+0800)
Subject: net/i40e: fix link update delay
X-Git-Tag: spdx-start~4529
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=0046ba5c27bd50edc695a6760355915b89bc60e0;p=dpdk.git

net/i40e: fix link update delay

Fix the redundant delay in function link update. There is no need to
call rte_delay_ms and hold CPU for 100ms when link status is up.

Fixes: 263333bbb7a9 ("i40e: fix link status timeout")
Cc: stable@dpdk.org

Signed-off-by: Qiming Yang <qiming.yang@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
---

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 9b506512e3..303027b6a5 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -2220,11 +2220,11 @@ i40e_dev_link_update(struct rte_eth_dev *dev,
 		}
 
 		link.link_status = link_status.link_info & I40E_AQ_LINK_UP;
-		if (!wait_to_complete)
+		if (!wait_to_complete || link.link_status)
 			break;
 
 		rte_delay_ms(CHECK_INTERVAL);
-	} while (!link.link_status && rep_cnt--);
+	} while (--rep_cnt);
 
 	if (!link.link_status)
 		goto out;