[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 1498b4e..364a9e7 100644
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -1209,10 +1209,10 @@
| 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 @@
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;