Someone else might reply here, but this is an OS issue rather than a driver issue and I'd suggest the Ubuntu forums for support on this issue.
Todd Fujinaka Software Application Engineer Networking Division (ND) Intel Corporation todd.fujin...@intel.com (503) 712-4565 -----Original Message----- From: Paul Tsvika [mailto:mozloverin...@gmail.com] Sent: Wednesday, March 22, 2017 1:35 AM To: e1000-devel@lists.sourceforge.net Subject: [E1000-devel] Intel i210 - igb information Hi all, Before addressing my question, below is my system configuration: MB: SUPERMICRO X10SBA Lan chip: Intel® i210AT dual port GbE LAN - two lan ports available on the board OS: Ubuntu 16.04 As far as I know, the network naming mechanism has been changed since Ubuntu 15.10 and its newer version, udev will follow the rule to assign the network interface name: * Predictable network interface device names based on: * - firmware/bios-provided index numbers for on-board devices By using udevadm to get more information about these two lan ports ( detail log can be found in the attachment ): 1. Two lan chips report the same index * ATTRS{index}=="1"* 2. Based on the udev, one network interface is named eno1 <---- the number "1" is because of reporting from index However, the other one is incorrect, it's interface name is "rename3" 3. The system boots very slow due to the race condition of network naming ( eno1 is taken and the other one keeps trying to get this and then finally gave up ) 4. I revert back to the original network interface naming rule ( eth0, eth1... ), the system boots as fast as I expect. Question: 1. My understanding is that the index value should be unique. Since the board has two lan ports, the index value should not be the same. If i am wrong, please correct me. 2. I traced udev and igb. The value reported by udevadm is obtained from */sys/class/net/xxx*. I assume the information in */sys/class/net/xxx *is reported from igb driver. 3. Hence, where is *ATTRS{index}=="1" *reported from, should it be Lan chip firmware or bios ? Any discussion is appreciated. Thanks Paul -- P.T ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
