X-Git-Url: https://bbs.cooldavid.org/git/?a=blobdiff_plain;f=drivers%2Fnet%2Fixgbe%2Fixgbe_82598.c;h=25b20f93190a1307eb009614eba58d1beb743c9d;hb=16b61beb39f2446460f93c08d4d263dc24f22dd8;hp=9c02d6014cc43856fa405d8b0c0cc140aef63dde;hpb=66c87bd50ddae681ebedfda0d75e6e73ecd29ce7;p=net-next-2.6.git

diff --git a/drivers/net/ixgbe/ixgbe_82598.c b/drivers/net/ixgbe/ixgbe_82598.c
index 9c02d6014cc..25b20f93190 100644
--- a/drivers/net/ixgbe/ixgbe_82598.c
+++ b/drivers/net/ixgbe/ixgbe_82598.c
@@ -357,6 +357,7 @@ static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw, s32 packetbuf_num)
 	u32 fctrl_reg;
 	u32 rmcs_reg;
 	u32 reg;
+	u32 rx_pba_size;
 	u32 link_speed = 0;
 	bool link_up;
 
@@ -459,16 +460,18 @@ static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw, s32 packetbuf_num)
 
 	/* Set up and enable Rx high/low water mark thresholds, enable XON. */
 	if (hw->fc.current_mode & ixgbe_fc_tx_pause) {
-		if (hw->fc.send_xon) {
-			IXGBE_WRITE_REG(hw, IXGBE_FCRTL(packetbuf_num),
-			                (hw->fc.low_water | IXGBE_FCRTL_XONE));
-		} else {
-			IXGBE_WRITE_REG(hw, IXGBE_FCRTL(packetbuf_num),
-			                hw->fc.low_water);
-		}
+		rx_pba_size = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(packetbuf_num));
+		rx_pba_size >>= IXGBE_RXPBSIZE_SHIFT;
+
+		reg = (rx_pba_size - hw->fc.low_water) << 6;
+		if (hw->fc.send_xon)
+			reg |= IXGBE_FCRTL_XONE;
+		IXGBE_WRITE_REG(hw, IXGBE_FCRTL(packetbuf_num), reg);
+
+		reg = (rx_pba_size - hw->fc.high_water) << 10;
+		reg |= IXGBE_FCRTH_FCEN;
 
-		IXGBE_WRITE_REG(hw, IXGBE_FCRTH(packetbuf_num),
-		                (hw->fc.high_water | IXGBE_FCRTH_FCEN));
+		IXGBE_WRITE_REG(hw, IXGBE_FCRTH(packetbuf_num), reg);
 	}
 
 	/* Configure pause time (2 TCs per register) */