>-----Original Message----- >From: [email protected] >[mailto:[email protected]] >Sent: Wednesday, September 24, 2014 3:17 AM >To: [email protected] >Subject: Re: [E1000-devel] ixgbe and pausing NICs > > >> It's probably not a flow control issue unless the switch flow control setting >> are changed to some very strange values. If they have not been changed they >> are probably not the issue. > > The workaround I've had in place for over two weeks now is to enable flow > control on the Nexus 3064 on all ports that have 82599EB controllers > connected. Disabling flow control on the NICs directly with > ethtool works as well. No more issues.
If that is the case it's more likely some kind of incompatibility between the switch and the PHY of the NIC. > This indicates some breakdown in the pause frame negotiation between NIC > and switch, and possibly a long-standing bug in ixgbe. The kernel docs > state, somewhat unclearly, that flow control is enabled. I take it this means > that flow control autonegotiation is enabled. And in my case, it's clearly > not working. I'm not sure I understand - you can tell both: 1. If flow control is enabled: #ethtool -a ethX -> will show the current settings for the port #ethtool -S ethX -> will tell you if you are sending or receiving pause frames (depends on traffic) #dmesg -> will show the state of the FC registers on the NIC when the link comes up in the "Link is Up" message Thanks, Emil > > >------------------------------------------------------------ >------------------ >Meet PCI DSS 3.0 Compliance Requirements with EventLog >Analyzer >Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI >DSS Reports >Are you Audit-Ready for PCI DSS 3.0 Compliance? Download >White paper >Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog >Analyzer >http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/ >4140/ostg.clktrk >_______________________________________________ >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 ------------------------------------------------------------------------------ Meet PCI DSS 3.0 Compliance Requirements with EventLog Analyzer Achieve PCI DSS 3.0 Compliant Status with Out-of-the-box PCI DSS Reports Are you Audit-Ready for PCI DSS 3.0 Compliance? Download White paper Comply to PCI DSS 3.0 Requirement 10 and 11.5 with EventLog Analyzer http://pubads.g.doubleclick.net/gampad/clk?id=154622311&iu=/4140/ostg.clktrk _______________________________________________ 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
