ixgbe: Add work around for empty SFP+ cage crosstalk
authorDon Skidmore <donald.c.skidmore@intel.com>
Tue, 12 Apr 2016 23:25:10 +0000 (19:25 -0400)
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>
Mon, 25 Apr 2016 11:10:27 +0000 (04:10 -0700)
commit4319a7976722f6925b5bbbdac417d87a0cbde859
tree1ae91687eedb2de67cffdd5f8c8a8da0e2b2ffaa
parenta0254a70b4f91396ad04b1225dd7c10a680d38ff
ixgbe: Add work around for empty SFP+ cage crosstalk

It is possible on some systems that crosstalk could lead to link flap
on empty SFP+ cages.  A new NVM bit was defined to let SW know it
needs to implement the work around which consists of verifying that
there is a module in the cage before acting on the LSC.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
drivers/net/ethernet/intel/ixgbe/ixgbe.h
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
drivers/net/ethernet/intel/ixgbe/ixgbe_type.h