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[netdrvr] forcedeth: save/restore device configuration space 

The memory mapped device configuration space is lost during hibernate.
Save and restore it (fixes 'swapped mac' problem).

Signed-off-by: TTobias Diedrich <ranma+kernel@tdiedrich.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Tobias Diedrich 2008-05-18 15:03:44 +02:00 committed by Jeff Garzik
parent f735a2a1a4
commit 1a1ca86158
1 changed files with 15 additions and 6 deletions
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21
drivers/net/forcedeth.c
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@ -426,6 +426,7 @@ union ring_type {
#define NV_PCI_REGSZ_VER1 0x270
#define NV_PCI_REGSZ_VER2 0x2d4
#define NV_PCI_REGSZ_VER3 0x604
#define NV_PCI_REGSZ_MAX 0x604
/* various timeout delays: all in usec */
#define NV_TXRX_RESET_DELAY 4
@ -784,6 +785,9 @@ struct fe_priv {
/* flow control */
u32 pause_flags;
/* power saved state */
u32 saved_config_space[NV_PCI_REGSZ_MAX/4];
};
/*
@ -5785,6 +5789,8 @@ static int nv_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct fe_priv *np = netdev_priv(dev);
u8 __iomem *base = get_hwbase(dev);
int i;
if (!netif_running(dev))
goto out;
@ -5794,6 +5800,10 @@ static int nv_suspend(struct pci_dev *pdev, pm_message_t state)
// Gross.
nv_close(dev);
/* save non-pci configuration space */
for (i = 0;i <= np->register_size/sizeof(u32); i++)
np->saved_config_space[i] = readl(base + i*sizeof(u32));
pci_save_state(pdev);
pci_enable_wake(pdev, pci_choose_state(pdev, state), np->wolenabled);
pci_set_power_state(pdev, pci_choose_state(pdev, state));
@ -5804,9 +5814,9 @@ static int nv_suspend(struct pci_dev *pdev, pm_message_t state)
static int nv_resume(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct fe_priv *np = netdev_priv(dev);
u8 __iomem *base = get_hwbase(dev);
int rc = 0;
u32 txreg;
int i, rc = 0;
if (!netif_running(dev))
goto out;
@ -5817,10 +5827,9 @@ static int nv_resume(struct pci_dev *pdev)
pci_restore_state(pdev);
pci_enable_wake(pdev, PCI_D0, 0);
/* restore mac address reverse flag */
txreg = readl(base + NvRegTransmitPoll);
txreg |= NVREG_TRANSMITPOLL_MAC_ADDR_REV;
writel(txreg, base + NvRegTransmitPoll);
/* restore non-pci configuration space */
for (i = 0;i <= np->register_size/sizeof(u32); i++)
writel(np->saved_config_space[i], base+i*sizeof(u32));
rc = nv_open(dev);
nv_set_multicast(dev);