tree 62b65d20d5e2bbe5c7a6dfc8204c57279353587b
parent b421922e66db43ffccb28a7df7c44263a917ba63
author Easwar Hariharan <easwar.hariharan@intel.com> 1445869716 -0400
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1445933962 +0900

staging/rdma/hfi1: Fix port bounce issues with 0.22 DC firmware

The DC firmware overwrites the enable_lane_tx register and does not update it
on a host request to go to Poll. This causes an infinite loop through the LNI
state machine if a link width downgrade occurs. This patch re-sets the
enable_lane_tx register to all 4 lanes.

Reviewed-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Easwar Hariharan <easwar.hariharan@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>