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| author |   Tobias Diedrich <ranma+kernel@tdiedrich.de> | 2008-05-18 15:03:44 +0200 |
|---|---|---|
| committer |   Jeff Garzik <jgarzik@redhat.com> | 2008-05-30 22:19:00 -0400 |
| commit | 1a1ca86158eee303af5270338695f90bc7ae02b3 (patch) | |
| tree | 424678c18134e5355bdb558519f45b35e2dbda73 /drivers/net/forcedeth.c | |
| parent | [netdrvr] forcedeth: setup wake-on-lan before shutting down (diff) | |
| download | linux-dev-1a1ca86158eee303af5270338695f90bc7ae02b3.tar.xz linux-dev-1a1ca86158eee303af5270338695f90bc7ae02b3.zip | |
[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>
Diffstat (limited to 'drivers/net/forcedeth.c')
| -rw-r--r-- | drivers/net/forcedeth.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c index 215d27bbeffe..a5650ed4d481 100644 --- a/drivers/net/forcedeth.c +++ b/drivers/net/forcedeth.c @@ -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 @@ out: 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); |