linux_dsm_epyc7002/drivers/net/ethernet/intel
Alexander Duyck bf456abb9b igb: Add workaround for VLAN tag stripping on 82576
There was a workaround partially implemented for the 82576 that is needed
in order for VLAN tag stripping to function correctly.  The original code
had side effects that would make it so the workaround was active on all
MACs.  I have updated the code so that the workaround is enabled, but
limited to the 82576, or activated if we exceed the available unicast
addresses.

The workaround has a side effect of mirroring all of the traffic outgoing
from the VFs back to the PF.  As such it is not recommended to use the
82576 in promiscuous mode as it will take a performance hit, though this is
now consistent with the performance as seen on the out-of-tree igb driver.

I also limited the scope of the UTA bits all being set to only when the
VMOLR register is enabled.  This should limit the effects of the UTA
register so that we don't pick up any excess traffic unless promiscuous
mode has been enabled on the PF, whereas before the PF would have ended up
in something equivalent to unicast promiscuous mode with VLAN filtering
otherwise.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-02-15 16:52:33 -08:00
..
e1000 e1000: Elementary checkpatch warnings and checks removed 2015-12-12 23:13:52 -08:00
e1000e e1000e: Fix msi-x interrupt automask 2015-12-14 20:19:47 -08:00
fm10k fm10k: IS_ENABLED() is not appropriate for boolean kconfig option 2015-12-22 05:23:17 -08:00
i40e i40e: add 100Mb ethtool reporting 2016-02-03 22:52:28 -08:00
i40evf i40e: AQ Add external power class to get link status 2016-02-03 22:30:38 -08:00
igb igb: Add workaround for VLAN tag stripping on 82576 2016-02-15 16:52:33 -08:00
igbvf igb/igbvf: don't give up 2016-02-15 16:17:57 -08:00
ixgb drivers/net: get rid of unnecessary initializations in .get_drvinfo() 2015-10-16 00:24:10 -07:00
ixgbe ixgbe: bulk free SKBs during TX completion cleanup cycle 2016-02-11 11:59:10 -05:00
ixgbevf ixgbevf: minor cleanups for ixgbevf_set_itr() 2015-12-29 19:16:05 -08:00
e100.c e100: Release skb when DMA mapping is failed in e100_xmit_prepare 2015-08-18 14:06:05 -07:00
Kconfig i40e: Kernel dependency update for i40e to support geneve offload 2015-12-16 10:58:56 -05:00
Makefile fm10k: Add skeletal frame for Intel(R) FM10000 Ethernet Switch Host Interface Driver 2014-09-23 03:59:13 -07:00