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path: root/drivers/net/skge.c
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Diffstat (limited to 'drivers/net/skge.c')
-rw-r--r--drivers/net/skge.c215
1 files changed, 131 insertions, 84 deletions
diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index eea75a401b0..d476a3cc2e9 100644
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -105,7 +105,8 @@ static const int txqaddr[] = { Q_XA1, Q_XA2 };
static const int rxqaddr[] = { Q_R1, Q_R2 };
static const u32 rxirqmask[] = { IS_R1_F, IS_R2_F };
static const u32 txirqmask[] = { IS_XA1_F, IS_XA2_F };
-static const u32 irqmask[] = { IS_R1_F|IS_XA1_F, IS_R2_F|IS_XA2_F };
+static const u32 napimask[] = { IS_R1_F|IS_XA1_F, IS_R2_F|IS_XA2_F };
+static const u32 portmask[] = { IS_PORT_1, IS_PORT_2 };
static int skge_get_regs_len(struct net_device *dev)
{
@@ -162,27 +163,46 @@ static void skge_wol_init(struct skge_port *skge)
{
struct skge_hw *hw = skge->hw;
int port = skge->port;
- enum pause_control save_mode;
- u32 ctrl;
+ u16 ctrl;
- /* Bring hardware out of reset */
skge_write16(hw, B0_CTST, CS_RST_CLR);
skge_write16(hw, SK_REG(port, GMAC_LINK_CTRL), GMLC_RST_CLR);
- skge_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
- skge_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
+ /* Turn on Vaux */
+ skge_write8(hw, B0_POWER_CTRL,
+ PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_ON | PC_VCC_OFF);
- /* Force to 10/100 skge_reset will re-enable on resume */
- save_mode = skge->flow_control;
- skge->flow_control = FLOW_MODE_SYMMETRIC;
+ /* WA code for COMA mode -- clear PHY reset */
+ if (hw->chip_id == CHIP_ID_YUKON_LITE &&
+ hw->chip_rev >= CHIP_REV_YU_LITE_A3) {
+ u32 reg = skge_read32(hw, B2_GP_IO);
+ reg |= GP_DIR_9;
+ reg &= ~GP_IO_9;
+ skge_write32(hw, B2_GP_IO, reg);
+ }
- ctrl = skge->advertising;
- skge->advertising &= ~(ADVERTISED_1000baseT_Half|ADVERTISED_1000baseT_Full);
+ skge_write32(hw, SK_REG(port, GPHY_CTRL),
+ GPC_DIS_SLEEP |
+ GPC_HWCFG_M_3 | GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0 |
+ GPC_ANEG_1 | GPC_RST_SET);
- skge_phy_reset(skge);
+ skge_write32(hw, SK_REG(port, GPHY_CTRL),
+ GPC_DIS_SLEEP |
+ GPC_HWCFG_M_3 | GPC_HWCFG_M_2 | GPC_HWCFG_M_1 | GPC_HWCFG_M_0 |
+ GPC_ANEG_1 | GPC_RST_CLR);
+
+ skge_write32(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
+
+ /* Force to 10/100 skge_reset will re-enable on resume */
+ gm_phy_write(hw, port, PHY_MARV_AUNE_ADV,
+ PHY_AN_100FULL | PHY_AN_100HALF |
+ PHY_AN_10FULL | PHY_AN_10HALF| PHY_AN_CSMA);
+ /* no 1000 HD/FD */
+ gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, 0);
+ gm_phy_write(hw, port, PHY_MARV_CTRL,
+ PHY_CT_RESET | PHY_CT_SPS_LSB | PHY_CT_ANE |
+ PHY_CT_RE_CFG | PHY_CT_DUP_MD);
- skge->flow_control = save_mode;
- skge->advertising = ctrl;
/* Set GMAC to no flow control and auto update for speed/duplex */
gma_write16(hw, port, GM_GP_CTRL,
@@ -226,12 +246,10 @@ static int skge_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
struct skge_port *skge = netdev_priv(dev);
struct skge_hw *hw = skge->hw;
- if (wol->wolopts & wol_supported(hw))
+ if (wol->wolopts & ~wol_supported(hw))
return -EOPNOTSUPP;
skge->wol = wol->wolopts;
- if (!netif_running(dev))
- skge_wol_init(skge);
return 0;
}
@@ -671,7 +689,7 @@ static void skge_led(struct skge_port *skge, enum led_mode mode)
struct skge_hw *hw = skge->hw;
int port = skge->port;
- mutex_lock(&hw->phy_mutex);
+ spin_lock_bh(&hw->phy_lock);
if (hw->chip_id == CHIP_ID_GENESIS) {
switch (mode) {
case LED_MODE_OFF:
@@ -742,7 +760,7 @@ static void skge_led(struct skge_port *skge, enum led_mode mode)
PHY_M_LED_MO_RX(MO_LED_ON));
}
}
- mutex_unlock(&hw->phy_mutex);
+ spin_unlock_bh(&hw->phy_lock);
}
/* blink LED's for finding board */
@@ -1316,7 +1334,7 @@ static void xm_phy_init(struct skge_port *skge)
xm_phy_write(hw, port, PHY_XMAC_CTRL, ctrl);
/* Poll PHY for status changes */
- schedule_delayed_work(&skge->link_thread, LINK_HZ);
+ mod_timer(&skge->link_timer, jiffies + LINK_HZ);
}
static void xm_check_link(struct net_device *dev)
@@ -1391,10 +1409,9 @@ static void xm_check_link(struct net_device *dev)
* Since internal PHY is wired to a level triggered pin, can't
* get an interrupt when carrier is detected.
*/
-static void xm_link_timer(struct work_struct *work)
+static void xm_link_timer(unsigned long arg)
{
- struct skge_port *skge =
- container_of(work, struct skge_port, link_thread.work);
+ struct skge_port *skge = (struct skge_port *) arg;
struct net_device *dev = skge->netdev;
struct skge_hw *hw = skge->hw;
int port = skge->port;
@@ -1414,13 +1431,13 @@ static void xm_link_timer(struct work_struct *work)
goto nochange;
}
- mutex_lock(&hw->phy_mutex);
+ spin_lock(&hw->phy_lock);
xm_check_link(dev);
- mutex_unlock(&hw->phy_mutex);
+ spin_unlock(&hw->phy_lock);
nochange:
if (netif_running(dev))
- schedule_delayed_work(&skge->link_thread, LINK_HZ);
+ mod_timer(&skge->link_timer, jiffies + LINK_HZ);
}
static void genesis_mac_init(struct skge_hw *hw, int port)
@@ -2323,7 +2340,7 @@ static void skge_phy_reset(struct skge_port *skge)
netif_stop_queue(skge->netdev);
netif_carrier_off(skge->netdev);
- mutex_lock(&hw->phy_mutex);
+ spin_lock_bh(&hw->phy_lock);
if (hw->chip_id == CHIP_ID_GENESIS) {
genesis_reset(hw, port);
genesis_mac_init(hw, port);
@@ -2331,7 +2348,7 @@ static void skge_phy_reset(struct skge_port *skge)
yukon_reset(hw, port);
yukon_init(hw, port);
}
- mutex_unlock(&hw->phy_mutex);
+ spin_unlock_bh(&hw->phy_lock);
dev->set_multicast_list(dev);
}
@@ -2354,12 +2371,12 @@ static int skge_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
/* fallthru */
case SIOCGMIIREG: {
u16 val = 0;
- mutex_lock(&hw->phy_mutex);
+ spin_lock_bh(&hw->phy_lock);
if (hw->chip_id == CHIP_ID_GENESIS)
err = __xm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val);
else
err = __gm_phy_read(hw, skge->port, data->reg_num & 0x1f, &val);
- mutex_unlock(&hw->phy_mutex);
+ spin_unlock_bh(&hw->phy_lock);
data->val_out = val;
break;
}
@@ -2368,14 +2385,14 @@ static int skge_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
if (!capable(CAP_NET_ADMIN))
return -EPERM;
- mutex_lock(&hw->phy_mutex);
+ spin_lock_bh(&hw->phy_lock);
if (hw->chip_id == CHIP_ID_GENESIS)
err = xm_phy_write(hw, skge->port, data->reg_num & 0x1f,
data->val_in);
else
err = gm_phy_write(hw, skge->port, data->reg_num & 0x1f,
data->val_in);
- mutex_unlock(&hw->phy_mutex);
+ spin_unlock_bh(&hw->phy_lock);
break;
}
return err;
@@ -2481,12 +2498,12 @@ static int skge_up(struct net_device *dev)
goto free_rx_ring;
/* Initialize MAC */
- mutex_lock(&hw->phy_mutex);
+ spin_lock_bh(&hw->phy_lock);
if (hw->chip_id == CHIP_ID_GENESIS)
genesis_mac_init(hw, port);
else
yukon_mac_init(hw, port);
- mutex_unlock(&hw->phy_mutex);
+ spin_unlock_bh(&hw->phy_lock);
/* Configure RAMbuffers */
chunk = hw->ram_size / ((hw->ports + 1)*2);
@@ -2504,6 +2521,11 @@ static int skge_up(struct net_device *dev)
skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_START | CSR_IRQ_CL_F);
skge_led(skge, LED_MODE_ON);
+ spin_lock_irq(&hw->hw_lock);
+ hw->intr_mask |= portmask[port];
+ skge_write32(hw, B0_IMSK, hw->intr_mask);
+ spin_unlock_irq(&hw->hw_lock);
+
netif_poll_enable(dev);
return 0;
@@ -2530,8 +2552,17 @@ static int skge_down(struct net_device *dev)
printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
netif_stop_queue(dev);
+
if (hw->chip_id == CHIP_ID_GENESIS && hw->phy_type == SK_PHY_XMAC)
- cancel_delayed_work(&skge->link_thread);
+ del_timer_sync(&skge->link_timer);
+
+ netif_poll_disable(dev);
+ netif_carrier_off(dev);
+
+ spin_lock_irq(&hw->hw_lock);
+ hw->intr_mask &= ~portmask[port];
+ skge_write32(hw, B0_IMSK, hw->intr_mask);
+ spin_unlock_irq(&hw->hw_lock);
skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF);
if (hw->chip_id == CHIP_ID_GENESIS)
@@ -2575,8 +2606,10 @@ static int skge_down(struct net_device *dev)
skge_led(skge, LED_MODE_OFF);
- netif_poll_disable(dev);
+ netif_tx_lock_bh(dev);
skge_tx_clean(dev);
+ netif_tx_unlock_bh(dev);
+
skge_rx_clean(skge);
kfree(skge->rx_ring.start);
@@ -2721,7 +2754,6 @@ static void skge_tx_clean(struct net_device *dev)
struct skge_port *skge = netdev_priv(dev);
struct skge_element *e;
- netif_tx_lock_bh(dev);
for (e = skge->tx_ring.to_clean; e != skge->tx_ring.to_use; e = e->next) {
struct skge_tx_desc *td = e->desc;
skge_tx_free(skge, e, td->control);
@@ -2730,7 +2762,6 @@ static void skge_tx_clean(struct net_device *dev)
skge->tx_ring.to_clean = e;
netif_wake_queue(dev);
- netif_tx_unlock_bh(dev);
}
static void skge_tx_timeout(struct net_device *dev)
@@ -3049,7 +3080,7 @@ static int skge_poll(struct net_device *dev, int *budget)
spin_lock_irqsave(&hw->hw_lock, flags);
__netif_rx_complete(dev);
- hw->intr_mask |= irqmask[skge->port];
+ hw->intr_mask |= napimask[skge->port];
skge_write32(hw, B0_IMSK, hw->intr_mask);
skge_read32(hw, B0_IMSK);
spin_unlock_irqrestore(&hw->hw_lock, flags);
@@ -3160,28 +3191,29 @@ static void skge_error_irq(struct skge_hw *hw)
}
/*
- * Interrupt from PHY are handled in work queue
+ * Interrupt from PHY are handled in tasklet (softirq)
* because accessing phy registers requires spin wait which might
* cause excess interrupt latency.
*/
-static void skge_extirq(struct work_struct *work)
+static void skge_extirq(unsigned long arg)
{
- struct skge_hw *hw = container_of(work, struct skge_hw, phy_work);
+ struct skge_hw *hw = (struct skge_hw *) arg;
int port;
- mutex_lock(&hw->phy_mutex);
for (port = 0; port < hw->ports; port++) {
struct net_device *dev = hw->dev[port];
- struct skge_port *skge = netdev_priv(dev);
if (netif_running(dev)) {
+ struct skge_port *skge = netdev_priv(dev);
+
+ spin_lock(&hw->phy_lock);
if (hw->chip_id != CHIP_ID_GENESIS)
yukon_phy_intr(skge);
else if (hw->phy_type == SK_PHY_BCOM)
bcom_phy_intr(skge);
+ spin_unlock(&hw->phy_lock);
}
}
- mutex_unlock(&hw->phy_mutex);
spin_lock_irq(&hw->hw_lock);
hw->intr_mask |= IS_EXT_REG;
@@ -3206,7 +3238,7 @@ static irqreturn_t skge_intr(int irq, void *dev_id)
status &= hw->intr_mask;
if (status & IS_EXT_REG) {
hw->intr_mask &= ~IS_EXT_REG;
- schedule_work(&hw->phy_work);
+ tasklet_schedule(&hw->phy_task);
}
if (status & (IS_XA1_F|IS_R1_F)) {
@@ -3275,24 +3307,35 @@ static int skge_set_mac_address(struct net_device *dev, void *p)
struct skge_hw *hw = skge->hw;
unsigned port = skge->port;
const struct sockaddr *addr = p;
+ u16 ctrl;
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
- mutex_lock(&hw->phy_mutex);
memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
- memcpy_toio(hw->regs + B2_MAC_1 + port*8,
- dev->dev_addr, ETH_ALEN);
- memcpy_toio(hw->regs + B2_MAC_2 + port*8,
- dev->dev_addr, ETH_ALEN);
- if (hw->chip_id == CHIP_ID_GENESIS)
- xm_outaddr(hw, port, XM_SA, dev->dev_addr);
- else {
- gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr);
- gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr);
+ if (!netif_running(dev)) {
+ memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN);
+ memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN);
+ } else {
+ /* disable Rx */
+ spin_lock_bh(&hw->phy_lock);
+ ctrl = gma_read16(hw, port, GM_GP_CTRL);
+ gma_write16(hw, port, GM_GP_CTRL, ctrl & ~GM_GPCR_RX_ENA);
+
+ memcpy_toio(hw->regs + B2_MAC_1 + port*8, dev->dev_addr, ETH_ALEN);
+ memcpy_toio(hw->regs + B2_MAC_2 + port*8, dev->dev_addr, ETH_ALEN);
+
+ if (hw->chip_id == CHIP_ID_GENESIS)
+ xm_outaddr(hw, port, XM_SA, dev->dev_addr);
+ else {
+ gma_set_addr(hw, port, GM_SRC_ADDR_1L, dev->dev_addr);
+ gma_set_addr(hw, port, GM_SRC_ADDR_2L, dev->dev_addr);
+ }
+
+ gma_write16(hw, port, GM_GP_CTRL, ctrl);
+ spin_unlock_bh(&hw->phy_lock);
}
- mutex_unlock(&hw->phy_mutex);
return 0;
}
@@ -3407,10 +3450,9 @@ static int skge_reset(struct skge_hw *hw)
else
hw->ram_size = t8 * 4096;
- hw->intr_mask = IS_HW_ERR | IS_PORT_1;
- if (hw->ports > 1)
- hw->intr_mask |= IS_PORT_2;
+ hw->intr_mask = IS_HW_ERR;
+ /* Use PHY IRQ for all but fiber based Genesis board */
if (!(hw->chip_id == CHIP_ID_GENESIS && hw->phy_type == SK_PHY_XMAC))
hw->intr_mask |= IS_EXT_REG;
@@ -3478,14 +3520,12 @@ static int skge_reset(struct skge_hw *hw)
skge_write32(hw, B0_IMSK, hw->intr_mask);
- mutex_lock(&hw->phy_mutex);
for (i = 0; i < hw->ports; i++) {
if (hw->chip_id == CHIP_ID_GENESIS)
genesis_reset(hw, i);
else
yukon_reset(hw, i);
}
- mutex_unlock(&hw->phy_mutex);
return 0;
}
@@ -3533,6 +3573,7 @@ static struct net_device *skge_devinit(struct skge_hw *hw, int port,
skge->netdev = dev;
skge->hw = hw;
skge->msg_enable = netif_msg_init(debug, default_msg);
+
skge->tx_ring.count = DEFAULT_TX_RING_SIZE;
skge->rx_ring.count = DEFAULT_RX_RING_SIZE;
@@ -3549,7 +3590,7 @@ static struct net_device *skge_devinit(struct skge_hw *hw, int port,
skge->port = port;
/* Only used for Genesis XMAC */
- INIT_DELAYED_WORK(&skge->link_thread, xm_link_timer);
+ setup_timer(&skge->link_timer, xm_link_timer, (unsigned long) skge);
if (hw->chip_id != CHIP_ID_GENESIS) {
dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
@@ -3631,9 +3672,9 @@ static int __devinit skge_probe(struct pci_dev *pdev,
}
hw->pdev = pdev;
- mutex_init(&hw->phy_mutex);
- INIT_WORK(&hw->phy_work, skge_extirq);
spin_lock_init(&hw->hw_lock);
+ spin_lock_init(&hw->phy_lock);
+ tasklet_init(&hw->phy_task, &skge_extirq, (unsigned long) hw);
hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
if (!hw->regs) {
@@ -3719,6 +3760,8 @@ static void __devexit skge_remove(struct pci_dev *pdev)
dev0 = hw->dev[0];
unregister_netdev(dev0);
+ tasklet_disable(&hw->phy_task);
+
spin_lock_irq(&hw->hw_lock);
hw->intr_mask = 0;
skge_write32(hw, B0_IMSK, 0);
@@ -3741,21 +3784,6 @@ static void __devexit skge_remove(struct pci_dev *pdev)
}
#ifdef CONFIG_PM
-static int vaux_avail(struct pci_dev *pdev)
-{
- int pm_cap;
-
- pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
- if (pm_cap) {
- u16 ctl;
- pci_read_config_word(pdev, pm_cap + PCI_PM_PMC, &ctl);
- if (ctl & PCI_PM_CAP_AUX_POWER)
- return 1;
- }
- return 0;
-}
-
-
static int skge_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct skge_hw *hw = pci_get_drvdata(pdev);
@@ -3777,10 +3805,6 @@ static int skge_suspend(struct pci_dev *pdev, pm_message_t state)
wol |= skge->wol;
}
- if (wol && vaux_avail(pdev))
- skge_write8(hw, B0_POWER_CTRL,
- PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_ON | PC_VCC_OFF);
-
skge_write32(hw, B0_IMSK, 0);
pci_enable_wake(pdev, pci_choose_state(pdev, state), wol);
pci_set_power_state(pdev, pci_choose_state(pdev, state));
@@ -3826,6 +3850,28 @@ out:
}
#endif
+static void skge_shutdown(struct pci_dev *pdev)
+{
+ struct skge_hw *hw = pci_get_drvdata(pdev);
+ int i, wol = 0;
+
+ for (i = 0; i < hw->ports; i++) {
+ struct net_device *dev = hw->dev[i];
+ struct skge_port *skge = netdev_priv(dev);
+
+ if (skge->wol)
+ skge_wol_init(skge);
+ wol |= skge->wol;
+ }
+
+ 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 skge_driver = {
.name = DRV_NAME,
.id_table = skge_id_table,
@@ -3835,6 +3881,7 @@ static struct pci_driver skge_driver = {
.suspend = skge_suspend,
.resume = skge_resume,
#endif
+ .shutdown = skge_shutdown,
};
static int __init skge_init_module(void)
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-21 04:24:59 +0000