Hi Alex, Through a combination of a new BIOS release, some fiddling with BIOS parameters, putting up the latest 'ixgbe' release and installing the latest RHEL 5.2 patched kernel I finally have the 82598EB CX4 devices running at x8 bus speed on the HP DL160.
Data loss is dramatically improved. However I'm still seeing a small amount of packet loss relative to the control system running e1000e/82571EB. Both are attached to the same fully tricked-out Cisco 6509. For the moment the drivers were built with DCA/IOAT disabled and the corresponding kernel modules are not loaded. Seeing a tiny number of 'rx_errors', fewer than five, but the number of data loss events roughly matches. No other error counters are clicking and nothing appears in 'dmesg'. I'll see if I can collect further information to characterize what may be the cause of the data loss. David ------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel
