-----Original Message----- From: Steven La [mailto:[email protected]] Sent: Friday, July 20, 2012 11:13 AM To: [email protected] Subject: Re: [E1000-devel] For the e1000e driver, ethtool is printing speed and duplex while link is not detected.
Oops... I forget to mention the followings. Kernel Version: 2.6.32 Driver Version: Intel(R) PRO/1000 Network Driver - 1.2.20-k2 Pci hardware info: 05:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection Thanks again. --Steven [..] Checked the Intel 82574 Gbe Controller Family datasheet, section 10.2.2.2 has the following information about this bit. "Link Up 0b = No link establish 1b = Link establish. For this to be valid, the Set Link Up bit of the Device Control (CTRL.SU) register must be set." So, it looks like just checking this bit may not be a reliable way to determine if link is up and that's why this problem don't show up on some other machines. [..] Thanks and Regards, --Steven Thanks for your work on this Steven, I'll take a look at see if it's the right fix for the problem you're seeing. FYI, the CTRL.SU bit usually gets set in another location, but it does seem reasonable to be checking it before relying on it. I'll let you know what I find in my research. Thanks again, Carolyn Carolyn Wyborny Linux Development LAN Access Division Intel Corporation ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ E1000-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
