Can you try forcing the switch to only advertise 1000/FD in its autoneg advertisement?
You could also try forcing the driver to advertise only 1Gb/FD using AutoNeg=0x20,0x20 for e1000/e1000e driver (or use ethtool to set advertisement mask using ethtool -s ethx advertise 0x20) AFAIK we currently have no resolution to this issue. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Charley Chu Sent: Wednesday, August 20, 2008 10:41 AM To: Ronciak, John; e1000-devel@lists.sourceforge.net Subject: Re: [E1000-devel] auto-negotiation issue Thanks John, Yes, it is gigabit switch and all ports are configured as auto-negotiation. The register dump also shows both sides are set to auto-negotiation with 1000Mb capability. It is not the case that the connection always established as 100Mb. Most of time, the connection runs 1Gb. Only occasionally, it negotiated as 100Mb, and it is able to re-establish as 1Gb by forcing a re-negotiation (reinsert the Ethernet cable or running "ethtool -r". We saw the problem happened on different boards (same model) connected to different Gigabit switch with different cable. Regards, Charley -----Original Message----- From: Ronciak, John [mailto:[EMAIL PROTECTED] Sent: Wednesday, August 20, 2008 8:17 AM To: Charley Chu; e1000-devel@lists.sourceforge.net Subject: RE: [E1000-devel] auto-negotiation issue My guess is that some of the ports on the switch are configured as being forced to specific speed/duplex. By specification both sides of the connection need to be set the same. So either both need to be forced or both set to auto-neg. There could also be peoblems with cables or connectors. These kinds of problems are never the driver but somehow related to the environment. I also assume you mean switch when you say "hub". There are no gigabit hubs. If you leave the NICs in auto-neg mode and plug 2 NICs back-to-back do they link correctly? Cheers, John ----------------------------------------------------------- "Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety.", Benjamin Franklin 1755 >-----Original Message----- >From: [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED] On Behalf >Of Charley Chu >Sent: Tuesday, August 19, 2008 6:10 PM >To: e1000-devel@lists.sourceforge.net >Subject: [E1000-devel] auto-negotiation issue > >Hi there, > >We have board with Intel 82571EB Ethernet controller, running >RHELE4-U4. >Sometime, the Ethernet port can only setup 100Mb-T full duplex >connection with Gigabit hub (saw this problem on different >Gigabit hub). >The connection can be re-connected as 1000Mb-FD by forcing >re-negotiation with "ethtool". > >Here is the registers dump at 100Mb-T: > >- MAC registers: >Device Control Register - CTRL(00000h) = 081c0241h >Device Status Register - STATUS(00008h = 00080347h > >- PHY registers: >Auto-Negotiation Advertisement Register - (04d) = 0x0de1 >Auto-Negotiation Base Page Ability Register - (05d) = 0xc1e1 >Auto-Negotiation Expansion Register - (06d) = 0x000f >Auto-Negotiation Next Page Transmit Register - (07d) = 0x2801 >Auto-Negotiation Next Page Ability Register - (08d) = 0x4a47 >1000BASE-T/100BASE-T2 Control Register - (09d) = 0x0200 >1000BASE-T/100BASE-T2 Status Register - (10d) = 0x0800 > >>From bit PHY9.9 and bit PHY10.11 (=1), we see both sides are 1000BAST- >full duplex capable. But the receiver status for both sides somehow are >wrong (bit PHY10.12 and bit PHY10.13 = 0). We're wondering what could >cause this problem. > >Any help is appreciated, > >Thanks, > >Charley > >--------------------------------------------------------------- >---------- >This SF.Net email is sponsored by the Moblin Your Move >Developer's challenge >Build the coolest Linux based applications with Moblin SDK & >win great prizes >Grand prize is a trip for two to an Open Source event anywhere >in the world >http://moblin-contest.org/redirect.php?banner_id=100&url=/ >_______________________________________________ >E1000-devel mailing list >E1000-devel@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/e1000-devel > ------------------------------------------------------------------------ - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel
