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atl1: fix broken suspend and resume 

Fix atl1_suspend() and atl1_resume() so they actually work.  We'll use
the suspend function for wake-on-lan in addition to just suspending.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
hifive-unleashed-5.1
Jay Cliburn 2008-05-09 22:12:07 -05:00 committed by Jeff Garzik
parent ff772b27e5
commit 08e0f1dc83
1 changed files with 79 additions and 44 deletions
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123
drivers/net/atlx/atl1.c
View File

@ -2781,64 +2781,93 @@ static int atl1_suspend(struct pci_dev *pdev, pm_message_t state)
struct atl1_hw *hw = &adapter->hw;
u32 ctrl = 0;
u32 wufc = adapter->wol;
u32 val;
int retval;
u16 speed;
u16 duplex;
netif_device_detach(netdev);
if (netif_running(netdev))
atl1_down(adapter);
retval = pci_save_state(pdev);
if (retval)
return retval;
atl1_read_phy_reg(hw, MII_BMSR, (u16 *) & ctrl);
atl1_read_phy_reg(hw, MII_BMSR, (u16 *) & ctrl);
if (ctrl & BMSR_LSTATUS)
val = ctrl & BMSR_LSTATUS;
if (val)
wufc &= ~ATLX_WUFC_LNKC;
/* reduce speed to 10/100M */
if (wufc) {
atl1_phy_enter_power_saving(hw);
/* if resume, let driver to re- setup link */
hw->phy_configured = false;
atl1_set_mac_addr(hw);
atlx_set_multi(netdev);
if (val && wufc) {
val = atl1_get_speed_and_duplex(hw, &speed, &duplex);
if (val) {
if (netif_msg_ifdown(adapter))
dev_printk(KERN_DEBUG, &pdev->dev,
"error getting speed/duplex\n");
goto disable_wol;
}
ctrl = 0;
/* turn on magic packet wol */
/* enable magic packet WOL */
if (wufc & ATLX_WUFC_MAG)
ctrl = WOL_MAGIC_EN | WOL_MAGIC_PME_EN;
/* turn on Link change WOL */
if (wufc & ATLX_WUFC_LNKC)
ctrl |= (WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN);
ctrl |= (WOL_MAGIC_EN | WOL_MAGIC_PME_EN);
iowrite32(ctrl, hw->hw_addr + REG_WOL_CTRL);
ioread32(hw->hw_addr + REG_WOL_CTRL);
/* turn on all-multi mode if wake on multicast is enabled */
ctrl = ioread32(hw->hw_addr + REG_MAC_CTRL);
ctrl &= ~MAC_CTRL_DBG;
ctrl &= ~MAC_CTRL_PROMIS_EN;
if (wufc & ATLX_WUFC_MC)
ctrl |= MAC_CTRL_MC_ALL_EN;
else
ctrl &= ~MAC_CTRL_MC_ALL_EN;
/* turn on broadcast mode if wake on-BC is enabled */
if (wufc & ATLX_WUFC_BC)
/* configure the mac */
ctrl = MAC_CTRL_RX_EN;
ctrl |= ((u32)((speed == SPEED_1000) ? MAC_CTRL_SPEED_1000 :
MAC_CTRL_SPEED_10_100) << MAC_CTRL_SPEED_SHIFT);
if (duplex == FULL_DUPLEX)
ctrl |= MAC_CTRL_DUPLX;
ctrl |= (((u32)adapter->hw.preamble_len &
MAC_CTRL_PRMLEN_MASK) << MAC_CTRL_PRMLEN_SHIFT);
if (adapter->vlgrp)
ctrl |= MAC_CTRL_RMV_VLAN;
if (wufc & ATLX_WUFC_MAG)
ctrl |= MAC_CTRL_BC_EN;
else
ctrl &= ~MAC_CTRL_BC_EN;
/* enable RX */
ctrl |= MAC_CTRL_RX_EN;
iowrite32(ctrl, hw->hw_addr + REG_MAC_CTRL);
pci_enable_wake(pdev, PCI_D3hot, 1);
pci_enable_wake(pdev, PCI_D3cold, 1);
} else {
iowrite32(0, hw->hw_addr + REG_WOL_CTRL);
pci_enable_wake(pdev, PCI_D3hot, 0);
pci_enable_wake(pdev, PCI_D3cold, 0);
ioread32(hw->hw_addr + REG_MAC_CTRL);
/* poke the PHY */
ctrl = ioread32(hw->hw_addr + REG_PCIE_PHYMISC);
ctrl |= PCIE_PHYMISC_FORCE_RCV_DET;
iowrite32(ctrl, hw->hw_addr + REG_PCIE_PHYMISC);
ioread32(hw->hw_addr + REG_PCIE_PHYMISC);
pci_enable_wake(pdev, pci_choose_state(pdev, state), 1);
goto exit;
}
pci_save_state(pdev);
pci_disable_device(pdev);
if (!val && wufc) {
ctrl |= (WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN);
iowrite32(ctrl, hw->hw_addr + REG_WOL_CTRL);
ioread32(hw->hw_addr + REG_WOL_CTRL);
iowrite32(0, hw->hw_addr + REG_MAC_CTRL);
ioread32(hw->hw_addr + REG_MAC_CTRL);
hw->phy_configured = false;
pci_enable_wake(pdev, pci_choose_state(pdev, state), 1);
goto exit;
}
pci_set_power_state(pdev, PCI_D3hot);
disable_wol:
iowrite32(0, hw->hw_addr + REG_WOL_CTRL);
ioread32(hw->hw_addr + REG_WOL_CTRL);
ctrl = ioread32(hw->hw_addr + REG_PCIE_PHYMISC);
ctrl |= PCIE_PHYMISC_FORCE_RCV_DET;
iowrite32(ctrl, hw->hw_addr + REG_PCIE_PHYMISC);
ioread32(hw->hw_addr + REG_PCIE_PHYMISC);
atl1_phy_enter_power_saving(hw);
hw->phy_configured = false;
pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
exit:
if (netif_running(netdev))
pci_disable_msi(adapter->pdev);
pci_disable_device(pdev);
pci_set_power_state(pdev, pci_choose_state(pdev, state));
return 0;
}
@ -2852,20 +2881,26 @@ static int atl1_resume(struct pci_dev *pdev)
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
/* FIXME: check and handle */
err = pci_enable_device(pdev);
if (err) {
if (netif_msg_ifup(adapter))
dev_printk(KERN_DEBUG, &pdev->dev,
"error enabling pci device\n");
return err;
}
pci_set_master(pdev);
iowrite32(0, adapter->hw.hw_addr + REG_WOL_CTRL);
pci_enable_wake(pdev, PCI_D3hot, 0);
pci_enable_wake(pdev, PCI_D3cold, 0);
iowrite32(0, adapter->hw.hw_addr + REG_WOL_CTRL);
atl1_reset(adapter);
atl1_reset_hw(&adapter->hw);
adapter->cmb.cmb->int_stats = 0;
if (netif_running(netdev))
atl1_up(adapter);
netif_device_attach(netdev);
atl1_via_workaround(adapter);
return 0;
}
#else