The patch:
Code: Select all
diff -Naur /tmp/linux-3.17.1-gentoo-r1/drivers/net/ethernet/atheros/alx/ethtool.c linux-3.17.1-gentoo-r1/drivers/net/ethernet/atheros/alx/ethtool.c
--- /tmp/linux-3.17.1-gentoo-r1/drivers/net/ethernet/atheros/alx/ethtool.c 2014-10-05 21:23:04.000000000 +0200
+++ linux-3.17.1-gentoo-r1/drivers/net/ethernet/atheros/alx/ethtool.c 2014-10-20 12:38:31.169848017 +0200
@@ -299,6 +299,40 @@
}
}
+static void alx_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
+{
+ struct alx_priv *alx = netdev_priv(netdev);
+ struct alx_hw *hw = &alx->hw;
+
+ wol->supported = WAKE_MAGIC | WAKE_PHY;
+ wol->wolopts = 0;
+
+ if (hw->sleep_ctrl & ALX_SLEEP_WOL_MAGIC)
+ wol->wolopts |= WAKE_MAGIC;
+ if (hw->sleep_ctrl & ALX_SLEEP_WOL_PHY)
+ wol->wolopts |= WAKE_PHY;
+}
+
+static int alx_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
+{
+ struct alx_priv *alx = netdev_priv(netdev);
+ struct alx_hw *hw = &alx->hw;
+
+ if (wol->wolopts & ~(WAKE_MAGIC | WAKE_PHY))
+ return -EOPNOTSUPP;
+
+ hw->sleep_ctrl = 0;
+
+ if (wol->wolopts & WAKE_MAGIC)
+ hw->sleep_ctrl |= ALX_SLEEP_WOL_MAGIC;
+ if (wol->wolopts & WAKE_PHY)
+ hw->sleep_ctrl |= ALX_SLEEP_WOL_PHY;
+
+ device_set_wakeup_enable(&alx->hw.pdev->dev, hw->sleep_ctrl);
+
+ return 0;
+}
+
const struct ethtool_ops alx_ethtool_ops = {
.get_settings = alx_get_settings,
.set_settings = alx_set_settings,
@@ -306,6 +340,8 @@
.set_pauseparam = alx_set_pauseparam,
.get_msglevel = alx_get_msglevel,
.set_msglevel = alx_set_msglevel,
+ .get_wol = alx_get_wol,
+ .set_wol = alx_set_wol,
.get_link = ethtool_op_get_link,
.get_strings = alx_get_strings,
.get_sset_count = alx_get_sset_count,
diff -Naur /tmp/linux-3.17.1-gentoo-r1/drivers/net/ethernet/atheros/alx/hw.c linux-3.17.1-gentoo-r1/drivers/net/ethernet/atheros/alx/hw.c
--- /tmp/linux-3.17.1-gentoo-r1/drivers/net/ethernet/atheros/alx/hw.c 2014-10-05 21:23:04.000000000 +0200
+++ linux-3.17.1-gentoo-r1/drivers/net/ethernet/atheros/alx/hw.c 2014-10-20 12:38:31.170848034 +0200
@@ -332,6 +332,16 @@
alx_write_mem32(hw, ALX_STAD1, val);
}
+static void alx_enable_osc(struct alx_hw *hw)
+{
+ u32 val;
+
+ /* rising edge */
+ val = alx_read_mem32(hw, ALX_MISC);
+ alx_write_mem32(hw, ALX_MISC, val & ~ALX_MISC_INTNLOSC_OPEN);
+ alx_write_mem32(hw, ALX_MISC, val | ALX_MISC_INTNLOSC_OPEN);
+}
+
static void alx_reset_osc(struct alx_hw *hw, u8 rev)
{
u32 val, val2;
@@ -848,6 +858,66 @@
}
}
+
+/* NOTE:
+ * 1. phy link must be established before calling this function
+ * 2. wol option (pattern,magic,link,etc.) is configed before call it.
+ */
+int alx_pre_suspend(struct alx_hw *hw, int speed, u8 duplex)
+{
+ u32 master, mac, phy, val;
+ int err = 0;
+
+ master = alx_read_mem32(hw, ALX_MASTER);
+ master &= ~ALX_MASTER_PCLKSEL_SRDS;
+ mac = hw->rx_ctrl;
+ /* 10/100 half */
+ ALX_SET_FIELD(mac, ALX_MAC_CTRL_SPEED, ALX_MAC_CTRL_SPEED_10_100);
+ mac &= ~(ALX_MAC_CTRL_FULLD | ALX_MAC_CTRL_RX_EN | ALX_MAC_CTRL_TX_EN);
+
+ phy = alx_read_mem32(hw, ALX_PHY_CTRL);
+ phy &= ~(ALX_PHY_CTRL_DSPRST_OUT | ALX_PHY_CTRL_CLS);
+ phy |= ALX_PHY_CTRL_RST_ANALOG | ALX_PHY_CTRL_HIB_PULSE |
+ ALX_PHY_CTRL_HIB_EN;
+
+ /* without any activity */
+ if (!(hw->sleep_ctrl & ALX_SLEEP_ACTIVE)) {
+ err = alx_write_phy_reg(hw, ALX_MII_IER, 0);
+ if (err)
+ return err;
+ phy |= ALX_PHY_CTRL_IDDQ | ALX_PHY_CTRL_POWER_DOWN;
+ } else {
+ if (hw->sleep_ctrl & (ALX_SLEEP_WOL_MAGIC | ALX_SLEEP_CIFS))
+ mac |= ALX_MAC_CTRL_RX_EN | ALX_MAC_CTRL_BRD_EN;
+ if (hw->sleep_ctrl & ALX_SLEEP_CIFS)
+ mac |= ALX_MAC_CTRL_TX_EN;
+ if (duplex == DUPLEX_FULL)
+ mac |= ALX_MAC_CTRL_FULLD;
+ if (speed == SPEED_1000)
+ ALX_SET_FIELD(mac, ALX_MAC_CTRL_SPEED,
+ ALX_MAC_CTRL_SPEED_1000);
+ phy |= ALX_PHY_CTRL_DSPRST_OUT;
+ err = alx_write_phy_ext(hw, ALX_MIIEXT_ANEG,
+ ALX_MIIEXT_S3DIG10,
+ ALX_MIIEXT_S3DIG10_SL);
+ if (err)
+ return err;
+ }
+
+ alx_enable_osc(hw);
+ hw->rx_ctrl = mac;
+ alx_write_mem32(hw, ALX_MASTER, master);
+ alx_write_mem32(hw, ALX_MAC_CTRL, mac);
+ alx_write_mem32(hw, ALX_PHY_CTRL, phy);
+
+ /* set val of PDLL D3PLLOFF */
+ val = alx_read_mem32(hw, ALX_PDLL_TRNS1);
+ val |= ALX_PDLL_TRNS1_D3PLLOFF_EN;
+ alx_write_mem32(hw, ALX_PDLL_TRNS1, val);
+
+ return 0;
+}
+
bool alx_phy_configured(struct alx_hw *hw)
{
u32 cfg, hw_cfg;
@@ -920,6 +990,26 @@
return alx_read_phy_reg(hw, ALX_MII_ISR, &isr);
}
+int alx_config_wol(struct alx_hw *hw)
+{
+ u32 wol = 0;
+ int err = 0;
+
+ /* turn on magic packet event */
+ if (hw->sleep_ctrl & ALX_SLEEP_WOL_MAGIC)
+ wol |= ALX_WOL0_MAGIC_EN | ALX_WOL0_PME_MAGIC_EN;
+
+ /* turn on link up event */
+ if (hw->sleep_ctrl & ALX_SLEEP_WOL_PHY) {
+ wol |= ALX_WOL0_LINK_EN | ALX_WOL0_PME_LINK;
+ /* only link up can wake up */
+ err = alx_write_phy_reg(hw, ALX_MII_IER, ALX_IER_LINK_UP);
+ }
+ alx_write_mem32(hw, ALX_WOL0, wol);
+
+ return err;
+}
+
void alx_disable_rss(struct alx_hw *hw)
{
u32 ctrl = alx_read_mem32(hw, ALX_RXQ0);
@@ -1031,6 +1121,71 @@
alx_write_mem32(hw, ALX_WRR, val);
}
+int alx_select_powersaving_speed(struct alx_hw *hw, int *speed, u8 *duplex)
+{
+ int i, err;
+ u16 lpa;
+
+ err = alx_read_phy_link(hw);
+ if (err)
+ return err;
+
+ if (hw->link_speed == SPEED_UNKNOWN) {
+ *speed = SPEED_UNKNOWN;
+ *duplex = DUPLEX_UNKNOWN;
+ return 0;
+ }
+
+ err = alx_read_phy_reg(hw, MII_LPA, &lpa);
+ if (err)
+ return err;
+
+ if (!(lpa & LPA_LPACK)) {
+ *speed = hw->link_speed;
+ return 0;
+ }
+
+ if (lpa & LPA_10FULL) {
+ *speed = SPEED_10;
+ *duplex = DUPLEX_FULL;
+ } else if (lpa & LPA_10HALF) {
+ *speed = SPEED_10;
+ *duplex = DUPLEX_HALF;
+ } else if (lpa & LPA_100FULL) {
+ *speed = SPEED_100;
+ *duplex = DUPLEX_FULL;
+ } else {
+ *speed = SPEED_100;
+ *duplex = DUPLEX_HALF;
+ }
+
+ if (*speed == hw->link_speed && *duplex == hw->duplex)
+ return 0;
+ err = alx_write_phy_reg(hw, ALX_MII_IER, 0);
+ if (err)
+ return err;
+ err = alx_setup_speed_duplex(hw, alx_speed_to_ethadv(*speed, *duplex) |
+ ADVERTISED_Autoneg, ALX_FC_ANEG |
+ ALX_FC_RX | ALX_FC_TX);
+ if (err)
+ return err;
+
+ /* wait for linkup */
+ for (i = 0; i < ALX_MAX_SETUP_LNK_CYCLE; i++) {
+ msleep(100);
+
+ err = alx_read_phy_link(hw);
+ if (err < 0)
+ return err;
+ if (hw->link_speed != SPEED_UNKNOWN)
+ break;
+ }
+ if (i == ALX_MAX_SETUP_LNK_CYCLE)
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
bool alx_get_phy_info(struct alx_hw *hw)
{
u16 devs1, devs2;
diff -Naur /tmp/linux-3.17.1-gentoo-r1/drivers/net/ethernet/atheros/alx/hw.h linux-3.17.1-gentoo-r1/drivers/net/ethernet/atheros/alx/hw.h
--- /tmp/linux-3.17.1-gentoo-r1/drivers/net/ethernet/atheros/alx/hw.h 2014-10-05 21:23:04.000000000 +0200
+++ linux-3.17.1-gentoo-r1/drivers/net/ethernet/atheros/alx/hw.h 2014-10-20 12:38:31.170848034 +0200
@@ -485,6 +485,8 @@
u8 flowctrl;
u32 adv_cfg;
+ u32 sleep_ctrl;
+
spinlock_t mdio_lock;
struct mdio_if_info mdio;
u16 phy_id[2];
@@ -547,12 +549,14 @@
void alx_enable_aspm(struct alx_hw *hw, bool l0s_en, bool l1_en);
int alx_setup_speed_duplex(struct alx_hw *hw, u32 ethadv, u8 flowctrl);
void alx_post_phy_link(struct alx_hw *hw);
+int alx_pre_suspend(struct alx_hw *hw, int speed, u8 duplex);
int alx_read_phy_reg(struct alx_hw *hw, u16 reg, u16 *phy_data);
int alx_write_phy_reg(struct alx_hw *hw, u16 reg, u16 phy_data);
int alx_read_phy_ext(struct alx_hw *hw, u8 dev, u16 reg, u16 *pdata);
int alx_write_phy_ext(struct alx_hw *hw, u8 dev, u16 reg, u16 data);
int alx_read_phy_link(struct alx_hw *hw);
int alx_clear_phy_intr(struct alx_hw *hw);
+int alx_config_wol(struct alx_hw *hw);
void alx_cfg_mac_flowcontrol(struct alx_hw *hw, u8 fc);
void alx_start_mac(struct alx_hw *hw);
int alx_reset_mac(struct alx_hw *hw);
@@ -560,6 +564,7 @@
bool alx_phy_configured(struct alx_hw *hw);
void alx_configure_basic(struct alx_hw *hw);
void alx_disable_rss(struct alx_hw *hw);
+int alx_select_powersaving_speed(struct alx_hw *hw, int *speed, u8 *duplex);
bool alx_get_phy_info(struct alx_hw *hw);
void alx_update_hw_stats(struct alx_hw *hw);
diff -Naur /tmp/linux-3.17.1-gentoo-r1/drivers/net/ethernet/atheros/alx/main.c linux-3.17.1-gentoo-r1/drivers/net/ethernet/atheros/alx/main.c
--- /tmp/linux-3.17.1-gentoo-r1/drivers/net/ethernet/atheros/alx/main.c 2014-10-05 21:23:04.000000000 +0200
+++ linux-3.17.1-gentoo-r1/drivers/net/ethernet/atheros/alx/main.c 2014-10-20 12:38:45.141083411 +0200
@@ -51,7 +51,6 @@
const char alx_drv_name[] = "alx";
-
static void alx_free_txbuf(struct alx_priv *alx, int entry)
{
struct alx_buffer *txb = &alx->txq.bufs[entry];
@@ -706,6 +705,7 @@
alx->rxbuf_size = ALIGN(ALX_RAW_MTU(hw->mtu), 8);
alx->tx_ringsz = 256;
alx->rx_ringsz = 512;
+ hw->sleep_ctrl = ALX_SLEEP_WOL_MAGIC | ALX_SLEEP_WOL_PHY;
hw->imt = 200;
alx->int_mask = ALX_ISR_MISC;
hw->dma_chnl = hw->max_dma_chnl;
@@ -960,6 +960,66 @@
return 0;
}
+static int __alx_shutdown(struct pci_dev *pdev, bool *wol_en)
+{
+ struct alx_priv *alx = pci_get_drvdata(pdev);
+ struct net_device *netdev = alx->dev;
+ struct alx_hw *hw = &alx->hw;
+ int err, speed;
+ u8 duplex;
+
+ netif_device_detach(netdev);
+
+ if (netif_running(netdev))
+ __alx_stop(alx);
+
+#ifdef CONFIG_PM_SLEEP
+ err = pci_save_state(pdev);
+ if (err)
+ return err;
+#endif
+
+ err = alx_select_powersaving_speed(hw, &speed, &duplex);
+ if (err)
+ return err;
+ err = alx_clear_phy_intr(hw);
+ if (err)
+ return err;
+ err = alx_pre_suspend(hw, speed, duplex);
+ if (err)
+ return err;
+ err = alx_config_wol(hw);
+ if (err)
+ return err;
+
+ *wol_en = false;
+ if (hw->sleep_ctrl & ALX_SLEEP_ACTIVE) {
+ netif_info(alx, wol, netdev,
+ "wol: ctrl=%X, speed=%X\n",
+ hw->sleep_ctrl, speed);
+ device_set_wakeup_enable(&pdev->dev, true);
+ *wol_en = true;
+ }
+
+ pci_disable_device(pdev);
+
+ return 0;
+}
+
+static void alx_shutdown(struct pci_dev *pdev)
+{
+ int err;
+ bool wol_en;
+
+ err = __alx_shutdown(pdev, &wol_en);
+ if (!err) {
+ pci_wake_from_d3(pdev, wol_en);
+ pci_set_power_state(pdev, PCI_D3hot);
+ } else {
+ dev_err(&pdev->dev, "shutdown fail %d\n", err);
+ }
+}
+
static void alx_link_check(struct work_struct *work)
{
struct alx_priv *alx;
@@ -1377,6 +1437,8 @@
goto out_unmap;
}
+ device_set_wakeup_enable(&pdev->dev, hw->sleep_ctrl);
+
netdev_info(netdev,
"Qualcomm Atheros AR816x/AR817x Ethernet [%pM]\n",
netdev->dev_addr);
@@ -1420,12 +1482,22 @@
static int alx_suspend(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
- struct alx_priv *alx = pci_get_drvdata(pdev);
+ int err;
+ bool wol_en;
+
+ err = __alx_shutdown(pdev, &wol_en);
+ if (err) {
+ dev_err(&pdev->dev, "shutdown fail in suspend %d\n", err);
+ return err;
+ }
+
+ if (wol_en) {
+ pci_prepare_to_sleep(pdev);
+ } else {
+ pci_wake_from_d3(pdev, false);
+ pci_set_power_state(pdev, PCI_D3hot);
+ }
- if (!netif_running(alx->dev))
- return 0;
- netif_device_detach(alx->dev);
- __alx_stop(alx);
return 0;
}
@@ -1433,20 +1505,46 @@
{
struct pci_dev *pdev = to_pci_dev(dev);
struct alx_priv *alx = pci_get_drvdata(pdev);
- struct alx_hw *hw = &alx->hw;
-
- alx_reset_phy(hw);
+ struct net_device *netdev = alx->dev;
+ struct alx_hw *hw = &alx->hw;
+ int err;
+
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+ pci_save_state(pdev);
+
+ pci_enable_wake(pdev, PCI_D3hot, 0);
+ pci_enable_wake(pdev, PCI_D3cold, 0);
+
+ hw->link_speed = SPEED_UNKNOWN;
+ alx->int_mask = ALX_ISR_MISC;
+
+ alx_reset_pcie(hw);
+ alx_reset_phy(hw);
+
+ err = alx_reset_mac(hw);
+ if (err) {
+ netif_err(alx, hw, alx->dev,
+ "resume:reset_mac fail %d\n", err);
+ return -EIO;
+ }
+
+ err = alx_setup_speed_duplex(hw, hw->adv_cfg, hw->flowctrl);
+ if (err) {
+ netif_err(alx, hw, alx->dev,
+ "resume:setup_speed_duplex fail %d\n", err);
+ return -EIO;
+ }
+
+ if (netif_running(netdev)) {
+ err = __alx_open(alx, true);
+ if (err)
+ return err;
+ }
- if (!netif_running(alx->dev))
- return 0;
- netif_device_attach(alx->dev);
- return __alx_open(alx, true);
+ netif_device_attach(netdev);
+ return err;
}
-
-static SIMPLE_DEV_PM_OPS(alx_pm_ops, alx_suspend, alx_resume);
-#define ALX_PM_OPS (&alx_pm_ops)
-#else
-#define ALX_PM_OPS NULL
#endif
@@ -1492,6 +1590,8 @@
}
pci_set_master(pdev);
+ pci_enable_wake(pdev, PCI_D3hot, 0);
+ pci_enable_wake(pdev, PCI_D3cold, 0);
alx_reset_pcie(hw);
if (!alx_reset_mac(hw))
@@ -1539,11 +1639,19 @@
{}
};
+#ifdef CONFIG_PM_SLEEP
+static SIMPLE_DEV_PM_OPS(alx_pm_ops, alx_suspend, alx_resume);
+#define ALX_PM_OPS (&alx_pm_ops)
+#else
+#define ALX_PM_OPS NULL
+#endif
+
static struct pci_driver alx_driver = {
.name = alx_drv_name,
.id_table = alx_pci_tbl,
.probe = alx_probe,
.remove = alx_remove,
+ .shutdown = alx_shutdown,
.err_handler = &alx_err_handlers,
.driver.pm = ALX_PM_OPS,
};