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 9b50651..303027b 100644 (file)
--- 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;