netxen: implement pci driver shutdown

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>

diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index f618e7c8eeb150ef9a0f8454f0359d54055fbbc0..794c19b2254f3978881b60e77022e5a3b423a3b9 100644 (file)
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -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)