sky2: add Wake On Lan support
Adds basic magic packet wake on lan support to the sky2 driver.
Note: initial WOL value is based on BIOS settings.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index bf1abf0..f4c0bc1 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -567,6 +567,73 @@
spin_unlock_bh(&sky2->phy_lock);
}
+/* Put device in state to listen for Wake On Lan */
+static void sky2_wol_init(struct sky2_port *sky2)
+{
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ enum flow_control save_mode;
+ u16 ctrl;
+ u32 reg1;
+
+ /* Bring hardware out of reset */
+ sky2_write16(hw, B0_CTST, CS_RST_CLR);
+ sky2_write16(hw, SK_REG(port, GMAC_LINK_CTRL), GMLC_RST_CLR);
+
+ sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
+ sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
+
+ /* Force to 10/100
+ * sky2_reset will re-enable on resume
+ */
+ save_mode = sky2->flow_mode;
+ ctrl = sky2->advertising;
+
+ sky2->advertising &= ~(ADVERTISED_1000baseT_Half|ADVERTISED_1000baseT_Full);
+ sky2->flow_mode = FC_NONE;
+ sky2_phy_power(hw, port, 1);
+ sky2_phy_reinit(sky2);
+
+ sky2->flow_mode = save_mode;
+ sky2->advertising = ctrl;
+
+ /* Set GMAC to no flow control and auto update for speed/duplex */
+ gma_write16(hw, port, GM_GP_CTRL,
+ GM_GPCR_FC_TX_DIS|GM_GPCR_TX_ENA|GM_GPCR_RX_ENA|
+ GM_GPCR_DUP_FULL|GM_GPCR_FC_RX_DIS|GM_GPCR_AU_FCT_DIS);
+
+ /* Set WOL address */
+ memcpy_toio(hw->regs + WOL_REGS(port, WOL_MAC_ADDR),
+ sky2->netdev->dev_addr, ETH_ALEN);
+
+ /* Turn on appropriate WOL control bits */
+ sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), WOL_CTL_CLEAR_RESULT);
+ ctrl = 0;
+ if (sky2->wol & WAKE_PHY)
+ ctrl |= WOL_CTL_ENA_PME_ON_LINK_CHG|WOL_CTL_ENA_LINK_CHG_UNIT;
+ else
+ ctrl |= WOL_CTL_DIS_PME_ON_LINK_CHG|WOL_CTL_DIS_LINK_CHG_UNIT;
+
+ if (sky2->wol & WAKE_MAGIC)
+ ctrl |= WOL_CTL_ENA_PME_ON_MAGIC_PKT|WOL_CTL_ENA_MAGIC_PKT_UNIT;
+ else
+ ctrl |= WOL_CTL_DIS_PME_ON_MAGIC_PKT|WOL_CTL_DIS_MAGIC_PKT_UNIT;;
+
+ ctrl |= WOL_CTL_DIS_PME_ON_PATTERN|WOL_CTL_DIS_PATTERN_UNIT;
+ sky2_write16(hw, WOL_REGS(port, WOL_CTRL_STAT), ctrl);
+
+ /* Turn on legacy PCI-Express PME mode */
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
+ reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
+ reg1 |= PCI_Y2_PME_LEGACY;
+ sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
+ sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
+
+ /* block receiver */
+ sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
+
+}
+
static void sky2_mac_init(struct sky2_hw *hw, unsigned port)
{
struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
@@ -2404,11 +2471,9 @@
}
-static int sky2_reset(struct sky2_hw *hw)
+static int __devinit sky2_init(struct sky2_hw *hw)
{
- u16 status;
u8 t8;
- int i;
sky2_write8(hw, B0_CTST, CS_RST_CLR);
@@ -2429,6 +2494,22 @@
return -EOPNOTSUPP;
}
+ hw->pmd_type = sky2_read8(hw, B2_PMD_TYP);
+ hw->ports = 1;
+ t8 = sky2_read8(hw, B2_Y2_HW_RES);
+ if ((t8 & CFG_DUAL_MAC_MSK) == CFG_DUAL_MAC_MSK) {
+ if (!(sky2_read8(hw, B2_Y2_CLK_GATE) & Y2_STATUS_LNK2_INAC))
+ ++hw->ports;
+ }
+
+ return 0;
+}
+
+static void sky2_reset(struct sky2_hw *hw)
+{
+ u16 status;
+ int i;
+
/* disable ASF */
if (hw->chip_id <= CHIP_ID_YUKON_EC) {
sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET);
@@ -2453,14 +2534,6 @@
sky2_pci_write32(hw, PEX_UNC_ERR_STAT, 0xffffffffUL);
- hw->pmd_type = sky2_read8(hw, B2_PMD_TYP);
- hw->ports = 1;
- t8 = sky2_read8(hw, B2_Y2_HW_RES);
- if ((t8 & CFG_DUAL_MAC_MSK) == CFG_DUAL_MAC_MSK) {
- if (!(sky2_read8(hw, B2_Y2_CLK_GATE) & Y2_STATUS_LNK2_INAC))
- ++hw->ports;
- }
-
sky2_power_on(hw);
for (i = 0; i < hw->ports; i++) {
@@ -2544,7 +2617,37 @@
sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START);
sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START);
+}
+static inline u8 sky2_wol_supported(const struct sky2_hw *hw)
+{
+ return sky2_is_copper(hw) ? (WAKE_PHY | WAKE_MAGIC) : 0;
+}
+
+static void sky2_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ const struct sky2_port *sky2 = netdev_priv(dev);
+
+ wol->supported = sky2_wol_supported(sky2->hw);
+ wol->wolopts = sky2->wol;
+}
+
+static int sky2_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+
+ if (wol->wolopts & ~sky2_wol_supported(sky2->hw))
+ return -EOPNOTSUPP;
+
+ sky2->wol = wol->wolopts;
+
+ if (hw->chip_id == CHIP_ID_YUKON_EC_U)
+ sky2_write32(hw, B0_CTST, sky2->wol
+ ? Y2_HW_WOL_ON : Y2_HW_WOL_OFF);
+
+ if (!netif_running(dev))
+ sky2_wol_init(sky2);
return 0;
}
@@ -3156,7 +3259,9 @@
static const struct ethtool_ops sky2_ethtool_ops = {
.get_settings = sky2_get_settings,
.set_settings = sky2_set_settings,
- .get_drvinfo = sky2_get_drvinfo,
+ .get_drvinfo = sky2_get_drvinfo,
+ .get_wol = sky2_get_wol,
+ .set_wol = sky2_set_wol,
.get_msglevel = sky2_get_msglevel,
.set_msglevel = sky2_set_msglevel,
.nway_reset = sky2_nway_reset,
@@ -3186,7 +3291,8 @@
/* Initialize network device */
static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw,
- unsigned port, int highmem)
+ unsigned port,
+ int highmem, int wol)
{
struct sky2_port *sky2;
struct net_device *dev = alloc_etherdev(sizeof(*sky2));
@@ -3234,6 +3340,7 @@
sky2->speed = -1;
sky2->advertising = sky2_supported_modes(hw);
sky2->rx_csum = 1;
+ sky2->wol = wol;
spin_lock_init(&sky2->phy_lock);
sky2->tx_pending = TX_DEF_PENDING;
@@ -3336,12 +3443,24 @@
return err;
}
+static int __devinit pci_wake_enabled(struct pci_dev *dev)
+{
+ int pm = pci_find_capability(dev, PCI_CAP_ID_PM);
+ u16 value;
+
+ if (!pm)
+ return 0;
+ if (pci_read_config_word(dev, pm + PCI_PM_CTRL, &value))
+ return 0;
+ return value & PCI_PM_CTRL_PME_ENABLE;
+}
+
static int __devinit sky2_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct net_device *dev;
struct sky2_hw *hw;
- int err, using_dac = 0;
+ int err, using_dac = 0, wol_default;
err = pci_enable_device(pdev);
if (err) {
@@ -3378,6 +3497,8 @@
}
}
+ wol_default = pci_wake_enabled(pdev) ? WAKE_MAGIC : 0;
+
err = -ENOMEM;
hw = kzalloc(sizeof(*hw), GFP_KERNEL);
if (!hw) {
@@ -3413,7 +3534,7 @@
if (!hw->st_le)
goto err_out_iounmap;
- err = sky2_reset(hw);
+ err = sky2_init(hw);
if (err)
goto err_out_iounmap;
@@ -3422,7 +3543,9 @@
pdev->irq, yukon2_name[hw->chip_id - CHIP_ID_YUKON_XL],
hw->chip_id, hw->chip_rev);
- dev = sky2_init_netdev(hw, 0, using_dac);
+ sky2_reset(hw);
+
+ dev = sky2_init_netdev(hw, 0, using_dac, wol_default);
if (!dev) {
err = -ENOMEM;
goto err_out_free_pci;
@@ -3457,7 +3580,7 @@
if (hw->ports > 1) {
struct net_device *dev1;
- dev1 = sky2_init_netdev(hw, 1, using_dac);
+ dev1 = sky2_init_netdev(hw, 1, using_dac, wol_default);
if (!dev1) {
printk(KERN_WARNING PFX
"allocation of second port failed\n");
@@ -3544,23 +3667,29 @@
static int sky2_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct sky2_hw *hw = pci_get_drvdata(pdev);
- int i;
+ int i, wol = 0;
del_timer_sync(&hw->idle_timer);
netif_poll_disable(hw->dev[0]);
for (i = 0; i < hw->ports; i++) {
struct net_device *dev = hw->dev[i];
+ struct sky2_port *sky2 = netdev_priv(dev);
- if (netif_running(dev)) {
+ if (netif_running(dev))
sky2_down(dev);
- netif_device_detach(dev);
- }
+
+ if (sky2->wol)
+ sky2_wol_init(sky2);
+
+ wol |= sky2->wol;
}
sky2_write32(hw, B0_IMSK, 0);
sky2_power_aux(hw);
+
pci_save_state(pdev);
+ pci_enable_wake(pdev, pci_choose_state(pdev, state), wol);
pci_set_power_state(pdev, pci_choose_state(pdev, state));
return 0;
@@ -3580,18 +3709,13 @@
goto out;
pci_enable_wake(pdev, PCI_D0, 0);
-
- err = sky2_reset(hw);
- if (err)
- goto out;
+ sky2_reset(hw);
sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
for (i = 0; i < hw->ports; i++) {
struct net_device *dev = hw->dev[i];
if (netif_running(dev)) {
- netif_device_attach(dev);
-
err = sky2_up(dev);
if (err) {
printk(KERN_ERR PFX "%s: could not up: %d\n",
@@ -3612,6 +3736,35 @@
}
#endif
+static void sky2_shutdown(struct pci_dev *pdev)
+{
+ struct sky2_hw *hw = pci_get_drvdata(pdev);
+ int i, wol = 0;
+
+ del_timer_sync(&hw->idle_timer);
+ netif_poll_disable(hw->dev[0]);
+
+ for (i = 0; i < hw->ports; i++) {
+ struct net_device *dev = hw->dev[i];
+ struct sky2_port *sky2 = netdev_priv(dev);
+
+ if (sky2->wol) {
+ wol = 1;
+ sky2_wol_init(sky2);
+ }
+ }
+
+ if (wol)
+ sky2_power_aux(hw);
+
+ pci_enable_wake(pdev, PCI_D3hot, wol);
+ pci_enable_wake(pdev, PCI_D3cold, wol);
+
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, PCI_D3hot);
+
+}
+
static struct pci_driver sky2_driver = {
.name = DRV_NAME,
.id_table = sky2_id_table,
@@ -3621,6 +3774,7 @@
.suspend = sky2_suspend,
.resume = sky2_resume,
#endif
+ .shutdown = sky2_shutdown,
};
static int __init sky2_init_module(void)