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netxen: implement pci driver shutdown

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Implement pci driver shutdown functionality, this helps
quiescing all PCI transaction before chipset is reset.

Amit Kumar Salecha <amit@qlogic.com>
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amit Kumar Salecha 2009-08-23 08:35:12 +00:00 committed by David S. Miller
parent ce644ed4db
commit 22b5794b5d
1 changed files with 30 additions and 8 deletions
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38
drivers/net/netxen/netxen_nic_main.c
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@ -922,6 +922,8 @@ netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
netxen_p3_free_mac_list(adapter);
adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
netxen_napi_disable(adapter);
netxen_release_tx_buffers(adapter);
@ -1288,14 +1290,11 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev)
free_netdev(netdev);
}
#ifdef CONFIG_PM
static int
netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
static int __netxen_nic_shutdown(struct pci_dev *pdev)
{
struct netxen_adapter *adapter = pci_get_drvdata(pdev);
struct net_device *netdev = adapter->netdev;
int retval;
netif_device_detach(netdev);
@ -1307,7 +1306,12 @@ netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
netxen_nic_detach(adapter);
pci_save_state(pdev);
if (adapter->portnum == 0)
netxen_free_dummy_dma(adapter);
retval = pci_save_state(pdev);
if (retval)
return retval;
if (netxen_nic_wol_supported(adapter)) {
pci_enable_wake(pdev, PCI_D3cold, 1);
@ -1315,10 +1319,27 @@ netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
}
pci_disable_device(pdev);
pci_set_power_state(pdev, pci_choose_state(pdev, state));
return 0;
}
static void netxen_nic_shutdown(struct pci_dev *pdev)
{
if (__netxen_nic_shutdown(pdev))
return;
}
#ifdef CONFIG_PM
static int
netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
{
int retval;
retval = __netxen_nic_shutdown(pdev);
if (retval)
return retval;
pci_set_power_state(pdev, pci_choose_state(pdev, state));
return 0;
}
static int
netxen_nic_resume(struct pci_dev *pdev)
@ -2068,8 +2089,9 @@ static struct pci_driver netxen_driver = {
.remove = __devexit_p(netxen_nic_remove),
#ifdef CONFIG_PM
.suspend = netxen_nic_suspend,
.resume = netxen_nic_resume
.resume = netxen_nic_resume,
#endif
.shutdown = netxen_nic_shutdown
};
static int __init netxen_init_module(void)