i40e: don't re-enable ATR when flushing filters if SB has TCP4/IPv4 rules
authorJacob Keller <jacob.e.keller@intel.com>
Mon, 6 Feb 2017 22:38:45 +0000 (14:38 -0800)
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>
Mon, 20 Mar 2017 23:45:21 +0000 (16:45 -0700)
commit510dd4609f581329a421fa20e1b802b629bb7ee2
tree631d5abfd66b8080f25ba24992071cda46629a62
parent6d069425f0fcafff5bfdd292e5f345ce55d46a43
i40e: don't re-enable ATR when flushing filters if SB has TCP4/IPv4 rules

When flushing and replaying FDIR filters, it is possible we would
disable ATR, and then re-enable it even though we should have kept
it disabled due to existing TCP/IPv4 filters. Fix this by checking
whether we have TCP4/IPv4 filters before re-enabling.

Alternatively, we could instead restore ATR and then replay filters,
however, this would cause us to rapidly enable and then disable ATR in
some cases.

Change-ID: I076e4cc1e4409bce7f98f3c213295433a4ff43d8
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Avinash Dayanand <avinash.dayanand@intel.com>
Reviewed-by: Alan Brady <alan.brady@intel.com>
Reviewed-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
drivers/net/ethernet/intel/i40e/i40e_main.c