Hi all, We've got an 82599 device using the XAUI interface over an ATCA backplane data link. Using version 2.0.72.4 of the ixgbe driver from sourceforge.
I'm investigating an issue where under load we eventually suddenly stop receiving packets. We're sending out packets, I can see the reply being sent with tcpdump on other hosts, but we never receive the reply. The driver doesn't complain about loss of carrier (and doesn't indicate dropped packets), and instrumentation that I added reports the LINKS register as having the value 0x744bef00. That LINKS register value is reasonable at first glance--the "link up" bit is set, but the "link status" bit is not, which would seem to imply that the link is currently okay but wasn't before. However, this particular device continues to report the same LINKS value during normal operation, even when reading the register multiple times in a row. Is this even possible in normal operation, or does it indicate faulty hardware of some sort? Is it possible that this is related to the apparent loss of incoming traffic without any trace? The other device (and the devices on other boards) report 0x744bef80 which is what I expected. Thanks, Chris -- Chris Friesen Software Developer GENBAND [email protected] www.genband.com ------------------------------------------------------------------------------ This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd _______________________________________________ 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
