igb: remove adaptive IFS from driver

Adaptive IFS support has been included in the igb driver since its
initial release, but it is not a feature on any igb NICs. This patch
removes it from the driver.

Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 8 deletions

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 30fb5a89c42..eb48e1a084d 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1365,7 +1365,6 @@ void igb_reset(struct igb_adapter *adapter)
         /* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */
         wr32(E1000_VET, ETHERNET_IEEE_VLAN_TYPE);
 
-        igb_reset_adaptive(hw);
         igb_get_phy_info(hw);
 }
 
@@ -1508,7 +1507,6 @@ static int __devinit igb_probe(struct pci_dev *pdev,
         igb_get_bus_info_pcie(hw);
 
         hw->phy.autoneg_wait_to_complete = false;
-        hw->mac.adaptive_ifs = true;
 
         /* Copper options */
         if (hw->phy.media_type == e1000_media_type_copper) {
@@ -3159,7 +3157,6 @@ static void igb_watchdog_task(struct work_struct *work)
         }
 
         igb_update_stats(adapter);
-        igb_update_adaptive(hw);
 
         for (i = 0; i < adapter->num_tx_queues; i++) {
                 struct igb_ring *tx_ring = adapter->tx_ring[i];
@@ -4064,11 +4061,8 @@ void igb_update_stats(struct igb_adapter *adapter)
         adapter->stats.mptc += rd32(E1000_MPTC);
         adapter->stats.bptc += rd32(E1000_BPTC);
 
-        /* used for adaptive IFS */
-        hw->mac.tx_packet_delta = rd32(E1000_TPT);
-        adapter->stats.tpt += hw->mac.tx_packet_delta;
-        hw->mac.collision_delta = rd32(E1000_COLC);
-        adapter->stats.colc += hw->mac.collision_delta;
+        adapter->stats.tpt += rd32(E1000_TPT);
+        adapter->stats.colc += rd32(E1000_COLC);
 
         adapter->stats.algnerrc += rd32(E1000_ALGNERRC);
         adapter->stats.rxerrc += rd32(E1000_RXERRC);