> -----Original Message----- > From: Intel-wired-lan [mailto:[email protected]] On > Behalf Of Hiroshi Shimamoto > Sent: Thursday, April 09, 2015 6:04 PM > To: Kirsher, Jeffrey T; Alexander Duyck; intel-wired-lan > Cc: [email protected]; [email protected]; > [email protected]; Choi, Sy Jong; [email protected]; David > Laight; Hayato Momma; Edward Cree; Or Gerlitz; Bjørn Mork > Subject: [Intel-wired-lan] [PATCH v4 1/3] ixgbe, ixgbevf: Add new mbox API to > enable MC promiscuous mode > > From: Hiroshi Shimamoto <[email protected]> > > The limitation of the number of multicast address for VF is not enough for the > large scale server with SR-IOV feature. > IPv6 requires the multicast MAC address for each IP address to handle the > Neighbor Solicitation message. > We couldn't assign over 30 IPv6 addresses to a single VF interface. > > The easy way to solve this is enabling multicast promiscuous mode. > It is good to have a functionality to enable multicast promiscuous mode for > each > VF from VF driver. > > This patch introduces the new mbox API, IXGBE_VF_SET_MC_PROMISC, to > enable/disable multicast promiscuous mode in VF. If multicast promiscuous > mode is enabled the VF can receive all multicast packets. > > With this patch, the ixgbevf driver automatically enable multicast promiscuous > mode when the number of multicast addresses is over than 30 if possible. > > Signed-off-by: Hiroshi Shimamoto <[email protected]> > Reviewed-by: Hayato Momma <[email protected]> > CC: Choi, Sy Jong <[email protected]> > --- > drivers/net/ethernet/intel/ixgbe/ixgbe.h | 1 + > drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h | 2 + > drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 76 > +++++++++++++++++++++++ > drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 3 + > drivers/net/ethernet/intel/ixgbevf/mbx.h | 2 + > drivers/net/ethernet/intel/ixgbevf/vf.c | 27 +++++++- > drivers/net/ethernet/intel/ixgbevf/vf.h | 1 + > 7 files changed, 111 insertions(+), 1 deletion(-)
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