[dpdk-dev] e1000: randomly loosing link change events triggered by the peer

[Lu, Wenzhuo]

Hi Marc

From: Marc Sune [mailto:marcdevel at gmail.com]
Sent: Saturday, March 26, 2016 9:43 AM
To: dev at dpdk.org; Lu, Wenzhuo
Subject: e1000: randomly loosing link change events triggered by the peer

I found that in the current HEAD in master testing it with an I218-LM in autoneg mode, when link is forced to be renegociated by the peer (e.g. via ethtool on a peer Linux box) _some_ change events are lost.

It is quite random, but it seems to happen more while changing the speed than when changing the duplex mode.

However, when one or more link change events have been lost and the phy medium is disconnected and reconnected, the link speed and duplex mode are then correctly updated.

Marc

[Wenzhuo] Thanks for let us know this issue. May I ask some questions? Do you mean this NIC 0x155A? About how to reproduce this problem, you mean use these CLIs, ethtool –s xxx advertise xxx, ethtool –s xxx duplex half/full, to change the peer port’s configuration?