ixgbe: Prevent u8 wrapping of ITR value to something less than 10us
There were a couple cases where the ITR value generated via the adaptive ITR scheme could exceed 126. This resulted in the value becoming either 0 or something less than 10. Switching back and forth between a value less than 10 and a value greater than 10 can cause issues as certain hardware features such as RSC to not function well when the ITR value has dropped that low. CC: stable@vger.kernel.org Fixes: b4ded832 ("ixgbe: Update adaptive ITR algorithm") Reported-by:Gregg Leventhal <gleventhal@janestreet.com> Signed-off-by:
Alexander Duyck <alexander.h.duyck@linux.intel.com> Tested-by:
Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Showing
Please register or sign in to comment