Merge git://git.infradead.org/battery-2.6
[pandora-kernel.git] / drivers / net / r8169.c
index dd8106f..217e709 100644 (file)
@@ -23,6 +23,7 @@
 #include <linux/tcp.h>
 #include <linux/init.h>
 #include <linux/dma-mapping.h>
+#include <linux/pm_runtime.h>
 
 #include <asm/system.h>
 #include <asm/io.h>
@@ -509,6 +510,7 @@ struct rtl8169_private {
 
        struct mii_if_info mii;
        struct rtl8169_counters counters;
+       u32 saved_wolopts;
 };
 
 MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");
@@ -748,53 +750,61 @@ static void rtl8169_check_link_status(struct net_device *dev,
 
        spin_lock_irqsave(&tp->lock, flags);
        if (tp->link_ok(ioaddr)) {
+               /* This is to cancel a scheduled suspend if there's one. */
+               pm_request_resume(&tp->pci_dev->dev);
                netif_carrier_on(dev);
                netif_info(tp, ifup, dev, "link up\n");
        } else {
                netif_carrier_off(dev);
                netif_info(tp, ifdown, dev, "link down\n");
+               pm_schedule_suspend(&tp->pci_dev->dev, 100);
        }
        spin_unlock_irqrestore(&tp->lock, flags);
 }
 
-static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+#define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
+
+static u32 __rtl8169_get_wol(struct rtl8169_private *tp)
 {
-       struct rtl8169_private *tp = netdev_priv(dev);
        void __iomem *ioaddr = tp->mmio_addr;
        u8 options;
-
-       wol->wolopts = 0;
-
-#define WAKE_ANY (WAKE_PHY | WAKE_MAGIC | WAKE_UCAST | WAKE_BCAST | WAKE_MCAST)
-       wol->supported = WAKE_ANY;
-
-       spin_lock_irq(&tp->lock);
+       u32 wolopts = 0;
 
        options = RTL_R8(Config1);
        if (!(options & PMEnable))
-               goto out_unlock;
+               return 0;
 
        options = RTL_R8(Config3);
        if (options & LinkUp)
-               wol->wolopts |= WAKE_PHY;
+               wolopts |= WAKE_PHY;
        if (options & MagicPacket)
-               wol->wolopts |= WAKE_MAGIC;
+               wolopts |= WAKE_MAGIC;
 
        options = RTL_R8(Config5);
        if (options & UWF)
-               wol->wolopts |= WAKE_UCAST;
+               wolopts |= WAKE_UCAST;
        if (options & BWF)
-               wol->wolopts |= WAKE_BCAST;
+               wolopts |= WAKE_BCAST;
        if (options & MWF)
-               wol->wolopts |= WAKE_MCAST;
+               wolopts |= WAKE_MCAST;
 
-out_unlock:
-       spin_unlock_irq(&tp->lock);
+       return wolopts;
 }
 
-static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+static void rtl8169_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 {
        struct rtl8169_private *tp = netdev_priv(dev);
+
+       spin_lock_irq(&tp->lock);
+
+       wol->supported = WAKE_ANY;
+       wol->wolopts = __rtl8169_get_wol(tp);
+
+       spin_unlock_irq(&tp->lock);
+}
+
+static void __rtl8169_set_wol(struct rtl8169_private *tp, u32 wolopts)
+{
        void __iomem *ioaddr = tp->mmio_addr;
        unsigned int i;
        static const struct {
@@ -811,23 +821,29 @@ static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
                { WAKE_ANY,   Config5, LanWake }
        };
 
-       spin_lock_irq(&tp->lock);
-
        RTL_W8(Cfg9346, Cfg9346_Unlock);
 
        for (i = 0; i < ARRAY_SIZE(cfg); i++) {
                u8 options = RTL_R8(cfg[i].reg) & ~cfg[i].mask;
-               if (wol->wolopts & cfg[i].opt)
+               if (wolopts & cfg[i].opt)
                        options |= cfg[i].mask;
                RTL_W8(cfg[i].reg, options);
        }
 
        RTL_W8(Cfg9346, Cfg9346_Lock);
+}
+
+static int rtl8169_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+       struct rtl8169_private *tp = netdev_priv(dev);
+
+       spin_lock_irq(&tp->lock);
 
        if (wol->wolopts)
                tp->features |= RTL_FEATURE_WOL;
        else
                tp->features &= ~RTL_FEATURE_WOL;
+       __rtl8169_set_wol(tp, wol->wolopts);
        device_set_wakeup_enable(&tp->pci_dev->dev, wol->wolopts);
 
        spin_unlock_irq(&tp->lock);
@@ -3192,6 +3208,12 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
        device_set_wakeup_enable(&pdev->dev, tp->features & RTL_FEATURE_WOL);
 
+       if (pci_dev_run_wake(pdev)) {
+               pm_runtime_set_active(&pdev->dev);
+               pm_runtime_enable(&pdev->dev);
+       }
+       pm_runtime_idle(&pdev->dev);
+
 out:
        return rc;
 
@@ -3213,10 +3235,18 @@ static void __devexit rtl8169_remove_one(struct pci_dev *pdev)
        struct net_device *dev = pci_get_drvdata(pdev);
        struct rtl8169_private *tp = netdev_priv(dev);
 
+       pm_runtime_get_sync(&pdev->dev);
+
        flush_scheduled_work();
 
        unregister_netdev(dev);
 
+       if (pci_dev_run_wake(pdev)) {
+               pm_runtime_disable(&pdev->dev);
+               pm_runtime_set_suspended(&pdev->dev);
+       }
+       pm_runtime_put_noidle(&pdev->dev);
+
        /* restore original MAC address */
        rtl_rar_set(tp, dev->perm_addr);
 
@@ -3243,6 +3273,7 @@ static int rtl8169_open(struct net_device *dev)
        struct pci_dev *pdev = tp->pci_dev;
        int retval = -ENOMEM;
 
+       pm_runtime_get_sync(&pdev->dev);
 
        /*
         * Note that we use a magic value here, its wierd I know
@@ -3263,7 +3294,7 @@ static int rtl8169_open(struct net_device *dev)
        tp->TxDescArray = pci_alloc_consistent(pdev, R8169_TX_RING_BYTES,
                                               &tp->TxPhyAddr);
        if (!tp->TxDescArray)
-               goto out;
+               goto err_pm_runtime_put;
 
        tp->RxDescArray = pci_alloc_consistent(pdev, R8169_RX_RING_BYTES,
                                               &tp->RxPhyAddr);
@@ -3290,6 +3321,9 @@ static int rtl8169_open(struct net_device *dev)
 
        rtl8169_request_timer(dev);
 
+       tp->saved_wolopts = 0;
+       pm_runtime_put_noidle(&pdev->dev);
+
        rtl8169_check_link_status(dev, tp, tp->mmio_addr);
 out:
        return retval;
@@ -3299,9 +3333,13 @@ err_release_ring_2:
 err_free_rx_1:
        pci_free_consistent(pdev, R8169_RX_RING_BYTES, tp->RxDescArray,
                            tp->RxPhyAddr);
+       tp->RxDescArray = NULL;
 err_free_tx_0:
        pci_free_consistent(pdev, R8169_TX_RING_BYTES, tp->TxDescArray,
                            tp->TxPhyAddr);
+       tp->TxDescArray = NULL;
+err_pm_runtime_put:
+       pm_runtime_put_noidle(&pdev->dev);
        goto out;
 }
 
@@ -4720,6 +4758,8 @@ static int rtl8169_close(struct net_device *dev)
        struct rtl8169_private *tp = netdev_priv(dev);
        struct pci_dev *pdev = tp->pci_dev;
 
+       pm_runtime_get_sync(&pdev->dev);
+
        /* update counters before going down */
        rtl8169_update_counters(dev);
 
@@ -4734,6 +4774,8 @@ static int rtl8169_close(struct net_device *dev)
        tp->TxDescArray = NULL;
        tp->RxDescArray = NULL;
 
+       pm_runtime_put_sync(&pdev->dev);
+
        return 0;
 }
 
@@ -4759,12 +4801,12 @@ static void rtl_set_rx_mode(struct net_device *dev)
                rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
                mc_filter[1] = mc_filter[0] = 0xffffffff;
        } else {
-               struct dev_mc_list *mclist;
+               struct netdev_hw_addr *ha;
 
                rx_mode = AcceptBroadcast | AcceptMyPhys;
                mc_filter[1] = mc_filter[0] = 0;
-               netdev_for_each_mc_addr(mclist, dev) {
-                       int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
+               netdev_for_each_mc_addr(ha, dev) {
+                       int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
                        mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
                        rx_mode |= AcceptMulticast;
                }
@@ -4832,21 +4874,74 @@ static int rtl8169_suspend(struct device *device)
        return 0;
 }
 
+static void __rtl8169_resume(struct net_device *dev)
+{
+       netif_device_attach(dev);
+       rtl8169_schedule_work(dev, rtl8169_reset_task);
+}
+
 static int rtl8169_resume(struct device *device)
 {
        struct pci_dev *pdev = to_pci_dev(device);
        struct net_device *dev = pci_get_drvdata(pdev);
 
-       if (!netif_running(dev))
-               goto out;
+       if (netif_running(dev))
+               __rtl8169_resume(dev);
 
-       netif_device_attach(dev);
+       return 0;
+}
+
+static int rtl8169_runtime_suspend(struct device *device)
+{
+       struct pci_dev *pdev = to_pci_dev(device);
+       struct net_device *dev = pci_get_drvdata(pdev);
+       struct rtl8169_private *tp = netdev_priv(dev);
+
+       if (!tp->TxDescArray)
+               return 0;
+
+       spin_lock_irq(&tp->lock);
+       tp->saved_wolopts = __rtl8169_get_wol(tp);
+       __rtl8169_set_wol(tp, WAKE_ANY);
+       spin_unlock_irq(&tp->lock);
+
+       rtl8169_net_suspend(dev);
+
+       return 0;
+}
+
+static int rtl8169_runtime_resume(struct device *device)
+{
+       struct pci_dev *pdev = to_pci_dev(device);
+       struct net_device *dev = pci_get_drvdata(pdev);
+       struct rtl8169_private *tp = netdev_priv(dev);
+
+       if (!tp->TxDescArray)
+               return 0;
+
+       spin_lock_irq(&tp->lock);
+       __rtl8169_set_wol(tp, tp->saved_wolopts);
+       tp->saved_wolopts = 0;
+       spin_unlock_irq(&tp->lock);
+
+       __rtl8169_resume(dev);
 
-       rtl8169_schedule_work(dev, rtl8169_reset_task);
-out:
        return 0;
 }
 
+static int rtl8169_runtime_idle(struct device *device)
+{
+       struct pci_dev *pdev = to_pci_dev(device);
+       struct net_device *dev = pci_get_drvdata(pdev);
+       struct rtl8169_private *tp = netdev_priv(dev);
+
+       if (!tp->TxDescArray)
+               return 0;
+
+       rtl8169_check_link_status(dev, tp, tp->mmio_addr);
+       return -EBUSY;
+}
+
 static const struct dev_pm_ops rtl8169_pm_ops = {
        .suspend = rtl8169_suspend,
        .resume = rtl8169_resume,
@@ -4854,6 +4949,9 @@ static const struct dev_pm_ops rtl8169_pm_ops = {
        .thaw = rtl8169_resume,
        .poweroff = rtl8169_suspend,
        .restore = rtl8169_resume,
+       .runtime_suspend = rtl8169_runtime_suspend,
+       .runtime_resume = rtl8169_runtime_resume,
+       .runtime_idle = rtl8169_runtime_idle,
 };
 
 #define RTL8169_PM_OPS (&rtl8169_pm_ops)