I think the answer is yes, that's the way it works. On Mon, 25 Aug 2014, Maslekar, Omkar wrote:
> Hi All > > The MTA table which filters the multicast traffic in 82575/82599 devices are > configured differently in IGB/IXGBE driver respectively even though the > functionality is same. I would like to know from you if you have seen the > same behavior. > > Scenario: > On receiving VF_SET_MULTICAST message from a VF driver, PF driver sets bits > in the MTA Table which is 4096 bits wide bitmap to allow matching multicast > mac hash. The multicast filtering works same way on 82575 and 82599 devices. > > Behavior in IXGBE driver for 82599: > In response to receiving VF_SET_MULTICAST message, IXGBE driver does OR > operation on the MTA table with the new entries requested in the message, > which results in the MTA Table retaining previous entries plus new entries > set. > > Behavior in IGB driver for 82575: > In response to receiving VF_SET_MULTICAST message, IGB driver resets the > whole MTA Table and does OR operation on the MTA table with the new entries > requested in the message, which results in the MTA Table retaining latest > entries received by last message from VF. > > > Thanks, > Omkar Maslekar -- Hisashi T Fujinaka - [email protected] BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte ------------------------------------------------------------------------------ Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ _______________________________________________ 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
