Started reading the driver source code. Wow--a bit complex and perhaps an imprecise filter.
One thing I've determined is that the number of multicasts assigned to each VF does not exceed the IXGBE_MAX_VF_MC_ENTRIES limit of 30 subscriptions. Maximum is 24 based on unique MC dst IP counts. Seems the hardware matches using 12 bits of the MAC address, bytes 4 and 5 (final 16 bits)? So maybe I have to revisit what I was seeing in case the duplication is only related to hash collisions. If so I perhaps I can adjust the starting offset of the 12 bit match field. Or maybe it's better to just go a different direction and play with a new kernel and the flow-director. ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
