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From: Zhang Xiao <xiao.zhang@intel.com>
To: dev@dpdk.org
Cc: wei.zhao1@intel.com, Zhang Xiao <xiao.zhang@intel.com>, stable@dpdk.org
Subject: [dpdk-stable] net/ixgbe:fix wrong link status
Date: Mon,  2 Sep 2019 19:52:12 +0800	[thread overview]
Message-ID: <1567425132-59486-1-git-send-email-xiao.zhang@intel.com> (raw)

The link status for 82599eb got from link status register was not correct,
check the enable/disable flag of tx laser when getting the link status,
set the link status down if tx laser disabled since the tx laser flag
could be set correctly when up/down the link status.

Fixes: dc66e5fd01b9 ("net/ixgbe: improve link state check on VF")
Cc: stable@dpdk.org

Signed-off-by: Zhang Xiao <xiao.zhang@intel.com>
---
 drivers/net/ixgbe/ixgbe_ethdev.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 87d2ad0..fc06a1a 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -2864,6 +2864,7 @@ ixgbe_dev_set_link_up(struct rte_eth_dev *dev)
 	} else {
 		/* Turn on the laser */
 		ixgbe_enable_tx_laser(hw);
+		ixgbe_dev_link_update(dev, 0);
 	}
 
 	return 0;
@@ -2894,6 +2895,7 @@ ixgbe_dev_set_link_down(struct rte_eth_dev *dev)
 	} else {
 		/* Turn off the laser */
 		ixgbe_disable_tx_laser(hw);
+		ixgbe_dev_link_update(dev, 0);
 	}
 
 	return 0;
@@ -3967,6 +3969,7 @@ ixgbe_dev_link_update_share(struct rte_eth_dev *dev,
 	u32 speed = 0;
 	int wait = 1;
 	bool autoneg = false;
+	u32 esdp_reg;
 
 	memset(&link, 0, sizeof(link));
 	link.link_status = ETH_LINK_DOWN;
@@ -3999,6 +4002,10 @@ ixgbe_dev_link_update_share(struct rte_eth_dev *dev,
 		return rte_eth_linkstatus_set(dev, &link);
 	}
 
+	esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
+	if ((esdp_reg & IXGBE_ESDP_SDP3))
+		link_up = 0;
+
 	if (link_up == 0) {
 		intr->flags |= IXGBE_FLAG_NEED_LINK_CONFIG;
 		return rte_eth_linkstatus_set(dev, &link);
-- 
2.7.4


             reply	other threads:[~2019-09-02  2:59 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-02 11:52 Zhang Xiao [this message]
2019-09-02  3:28 ` Zhao1, Wei
2019-09-02  9:00 ` [dpdk-stable] [dpdk-dev] " Ye Xiaolong
2019-09-02  9:54 ` Ye Xiaolong
2019-10-29  5:33 ` [dpdk-stable] [v2] " Xiao Zhang
2019-11-04  5:32   ` Ye Xiaolong

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