On 12/04/2012 06:21 PM, Ben Greear wrote: > On 12/04/2012 05:48 PM, Hisashi T Fujinaka wrote: >> On Wed, 5 Dec 2012, Skidmore, Donald C wrote: >> >>>>> Looking for something like 'lspci -vv'? >>>> >>>> That shows some 'Capabilities' mentioning 5GT/s, but is that just what the >>>> NIC is theoretically capable of, or it's current negotiated speed? >>>> >>> >>> My understanding was it displayed it's current negotiated speed and lanes >>> used. >>> >>> For what it is worth the ixgbe driver should log a warning during >>> probe if we don't get the PCIe link we need for full speed. Although >>> it is more complex with the 4 port as there the switch on the NIC in >>> the way. > > Yes, it did log an error to dmesg, etc..but that is a painful way report > status to a normal user. Maybe it's time to add another option to > ethtool... > > >> I usually use three v's and it shows both Capabilities and Settings. You >> may have to run it as root. > > I don't see anything obvious. I'll try a bunch of reboots tomorrow > to see if I can reproduce the problem and then see what lspci -vvv > shows. > > Thanks, > Ben >
When using lspci you get should have two different spots where the width and speed are reported. One is from the link capabilities register (LnkCap) which lists what it can do, and the other is the link status register (LnkSta) which lists what the current link speed and width are. Thanks, Alex ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ 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
