[PATCH] b44: add parameter

This patch adds a parameter to init_hw() to not completely initialize
the nic for wol.
Signed-off-by: Gary Zambrano <zambrano@broadcom.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/b44.c

@@ -101,7 +101,7 @@ MODULE_DEVICE_TABLE(pci, b44_pci_tbl);
 
 static void b44_halt(struct b44 *);
 static void b44_init_rings(struct b44 *);
-static void b44_init_hw(struct b44 *);
+static void b44_init_hw(struct b44 *, int);
 
 static int dma_desc_align_mask;
 static int dma_desc_sync_size;
@@ -873,7 +873,7 @@ static int b44_poll(struct net_device *netdev, int *budget)
 		spin_lock_irq(&bp->lock);
 		b44_halt(bp);
 		b44_init_rings(bp);
-		b44_init_hw(bp);
+		b44_init_hw(bp, 1);
 		netif_wake_queue(bp->dev);
 		spin_unlock_irq(&bp->lock);
 		done = 1;
@@ -942,7 +942,7 @@ static void b44_tx_timeout(struct net_device *dev)
 
 	b44_halt(bp);
 	b44_init_rings(bp);
-	b44_init_hw(bp);
+	b44_init_hw(bp, 1);
 
 	spin_unlock_irq(&bp->lock);
 
@@ -1059,7 +1059,7 @@ static int b44_change_mtu(struct net_device *dev, int new_mtu)
 	b44_halt(bp);
 	dev->mtu = new_mtu;
 	b44_init_rings(bp);
-	b44_init_hw(bp);
+	b44_init_hw(bp, 1);
 	spin_unlock_irq(&bp->lock);
 
 	b44_enable_ints(bp);
@@ -1356,13 +1356,15 @@ static int b44_set_mac_addr(struct net_device *dev, void *p)
  * packet processing.  Invoked with bp->lock held.
  */
 static void __b44_set_rx_mode(struct net_device *);
-static void b44_init_hw(struct b44 *bp)
+static void b44_init_hw(struct b44 *bp, int full_reset)
 {
 	u32 val;
 
 	b44_chip_reset(bp);
+	if (full_reset) {
 		b44_phy_reset(bp);
 		b44_setup_phy(bp);
+	}
 
 	/* Enable CRC32, set proper LED modes and power on PHY */
 	bw32(bp, B44_MAC_CTRL, MAC_CTRL_CRC32_ENAB | MAC_CTRL_PHY_LEDCTRL);
@@ -1376,6 +1378,7 @@ static void b44_init_hw(struct b44 *bp)
 	bw32(bp, B44_TXMAXLEN, bp->dev->mtu + ETH_HLEN + 8 + RX_HEADER_LEN);
 
 	bw32(bp, B44_TX_WMARK, 56); /* XXX magic */
+	if (full_reset) {
 		bw32(bp, B44_DMATX_CTRL, DMATX_CTRL_ENABLE);
 		bw32(bp, B44_DMATX_ADDR, bp->tx_ring_dma + bp->dma_offset);
 		bw32(bp, B44_DMARX_CTRL, (DMARX_CTRL_ENABLE |
@@ -1386,6 +1389,10 @@ static void b44_init_hw(struct b44 *bp)
 		bp->rx_prod = bp->rx_pending;
 
 		bw32(bp, B44_MIB_CTRL, MIB_CTRL_CLR_ON_READ);
+	} else {
+		bw32(bp, B44_DMARX_CTRL, (DMARX_CTRL_ENABLE |
+				      (bp->rx_offset << DMARX_CTRL_ROSHIFT)));
+	}
 
 	val = br32(bp, B44_ENET_CTRL);
 	bw32(bp, B44_ENET_CTRL, (val | ENET_CTRL_ENABLE));
@@ -1401,7 +1408,7 @@ static int b44_open(struct net_device *dev)
 		goto out;
 
 	b44_init_rings(bp);
-	b44_init_hw(bp);
+	b44_init_hw(bp, 1);
 
 	b44_check_phy(bp);
 
@@ -1511,7 +1518,7 @@ static int b44_close(struct net_device *dev)
 	netif_poll_enable(dev);
 
 	if (bp->flags & B44_FLAG_WOL_ENABLE) {
-		b44_init_hw(bp);
+		b44_init_hw(bp, 0);
 		b44_setup_wol(bp);
 	}
 
@@ -1786,7 +1793,7 @@ static int b44_set_ringparam(struct net_device *dev,
 
 	b44_halt(bp);
 	b44_init_rings(bp);
-	b44_init_hw(bp);
+	b44_init_hw(bp, 1);
 	netif_wake_queue(bp->dev);
 	spin_unlock_irq(&bp->lock);
 
@@ -1829,7 +1836,7 @@ static int b44_set_pauseparam(struct net_device *dev,
 	if (bp->flags & B44_FLAG_PAUSE_AUTO) {
 		b44_halt(bp);
 		b44_init_rings(bp);
-		b44_init_hw(bp);
+		b44_init_hw(bp, 1);
 	} else {
 		__b44_set_flow_ctrl(bp, bp->flags);
 	}
@@ -2188,7 +2195,7 @@ static int b44_suspend(struct pci_dev *pdev, pm_message_t state)
 
 	free_irq(dev->irq, dev);
 	if (bp->flags & B44_FLAG_WOL_ENABLE) {
-		b44_init_hw(bp);
+		b44_init_hw(bp, 0);
 		b44_setup_wol(bp);
 	}
 	pci_disable_device(pdev);
@@ -2213,7 +2220,7 @@ static int b44_resume(struct pci_dev *pdev)
 	spin_lock_irq(&bp->lock);
 
 	b44_init_rings(bp);
-	b44_init_hw(bp);
+	b44_init_hw(bp, 1);
 	netif_device_attach(bp->dev);
 	spin_unlock_irq(&bp->lock);