1 files changed, 6 insertions, 5 deletions

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 183235d46aee..ab846ec65204 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -2898,13 +2898,13 @@ static void igb_set_itr(struct igb_adapter *adapter)
         switch (current_itr) {
         /* counts and packets in update_itr are dependent on these numbers */
         case lowest_latency:
-                new_itr = 70000;
+                new_itr = 56;  /* aka 70,000 ints/sec */
                 break;
         case low_latency:
-                new_itr = 20000; /* aka hwitr = ~200 */
+                new_itr = 196; /* aka 20,000 ints/sec */
                 break;
         case bulk_latency:
-                new_itr = 4000;
+                new_itr = 980; /* aka 4,000 ints/sec */
                 break;
         default:
                 break;
@@ -2923,7 +2923,8 @@ set_itr_now:
                  * by adding intermediate steps when interrupt rate is
                  * increasing */
                 new_itr = new_itr > adapter->itr ?
-                             min(adapter->itr + (new_itr >> 2), new_itr) :
+                             max((new_itr * adapter->itr) /
+                                 (new_itr + (adapter->itr >> 2)), new_itr) :
                              new_itr;
                 /* Don't write the value here; it resets the adapter's
                  * internal timer, and causes us to delay far longer than
@@ -2932,7 +2933,7 @@ set_itr_now:
                  * ends up being correct.
                  */
                 adapter->itr = new_itr;
-                adapter->rx_ring->itr_val = 1000000000 / (new_itr * 256);
+                adapter->rx_ring->itr_val = new_itr;
                 adapter->rx_ring->set_itr = 1;
         }