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be2net: Support for WoL using magic packet after suspend.

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Add support for WOL using Magic Packet after suspend is done.

Signed-off-by: Sarveshwar Bandi <sarveshwarb@serverengines.com>
Signed-off-by: Ajit Khaparde <ajitk@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ajit Khaparde
2009-12-03 06:16:59 +00:00
committed by David S. Miller
parent d744b44e21
commit 71d8d1b58a
6 changed files with 128 additions and 0 deletions
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44
drivers/net/benet/be_main.c
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@@ -1659,6 +1659,44 @@ ret_sts:
return status;
}
static int be_setup_wol(struct be_adapter *adapter, bool enable)
{
struct be_dma_mem cmd;
int status = 0;
u8 mac[ETH_ALEN];
memset(mac, 0, ETH_ALEN);
cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
cmd.va = pci_alloc_consistent(adapter->pdev, cmd.size, &cmd.dma);
if (cmd.va == NULL)
return -1;
memset(cmd.va, 0, cmd.size);
if (enable) {
status = pci_write_config_dword(adapter->pdev,
PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
if (status) {
dev_err(&adapter->pdev->dev,
"Could not enable Wake-on-lan \n");
pci_free_consistent(adapter->pdev, cmd.size, cmd.va,
cmd.dma);
return status;
}
status = be_cmd_enable_magic_wol(adapter,
adapter->netdev->dev_addr, &cmd);
pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
} else {
status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
}
pci_free_consistent(adapter->pdev, cmd.size, cmd.va, cmd.dma);
return status;
}
static int be_setup(struct be_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
@@ -2282,6 +2320,9 @@ static int be_suspend(struct pci_dev *pdev, pm_message_t state)
struct be_adapter *adapter = pci_get_drvdata(pdev);
struct net_device *netdev = adapter->netdev;
if (adapter->wol)
be_setup_wol(adapter, true);
netif_device_detach(netdev);
if (netif_running(netdev)) {
rtnl_lock();
@@ -2324,6 +2365,9 @@ static int be_resume(struct pci_dev *pdev)
rtnl_unlock();
}
netif_device_attach(netdev);
if (adapter->wol)
be_setup_wol(adapter, false);
return 0;
}