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Commit 06c2f9ec authored by Malli Chilakala's avatar Malli Chilakala Committed by Jeff Garzik
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[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: default avatarMallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: default avatarGanesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: default avatarJohn 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
parent 5633684d

drivers/net/ixgb/ixgb_main.c

+2 −3
Original line number Diff line number Diff line
@@ -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;
@@ -1247,7 +1247,6 @@ 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);



		if(++i == adapter->tx_ring.count) i = 0;