[PATCH] ixgb: Do not set the RS bit on context descriptors

Don't set the RS bit on context descriptors, causes un-necessary bus activity

Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
diff -up net-drivers-2.6/drivers/net/ixgb/ixgb_main.c net-drivers-2.6/drivers/net/ixgb.new/ixgb_main.c

diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index 1498b4e4246676db8edca70837d959add606c5b8..364a9e78b0ccc894e7c0c41393086d3f0de0ced6 100644 (file)
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -1209,10 +1209,10 @@ ixgb_tso(struct ixgb_adapter *adapter, struct sk_buff *skb)
                                                | IXGB_CONTEXT_DESC_CMD_TSE
                                                | IXGB_CONTEXT_DESC_CMD_IP
                                                | IXGB_CONTEXT_DESC_CMD_TCP
-                                               | IXGB_CONTEXT_DESC_CMD_RS
                                                | IXGB_CONTEXT_DESC_CMD_IDE
                                                | (skb->len - (hdr_len)));
 
+
                if(++i == adapter->tx_ring.count) i = 0;
                adapter->tx_ring.next_to_use = i;
 
@@ -1247,8 +1247,7 @@ ixgb_tx_csum(struct ixgb_adapter *adapter, struct sk_buff *skb)
                context_desc->mss = 0;
                context_desc->cmd_type_len =
                        cpu_to_le32(IXGB_CONTEXT_DESC_TYPE
-                                       | IXGB_TX_DESC_CMD_RS 
-                                       | IXGB_TX_DESC_CMD_IDE);
+                                   | IXGB_TX_DESC_CMD_IDE);
 
                if(++i == adapter->tx_ring.count) i = 0;
                adapter->tx_ring.next_to_use = i;