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Driver: Vmxnet3: Reinitialize vmxnet3 backend on wakeup from hibernate

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Failing to reinitialize on wakeup results in loss of network connectivity for
vmxnet3 interface.

Signed-off-by: Srividya Murali <smurali@vmware.com>
Signed-off-by: Shrikrishna Khare <skhare@vmware.com>
Reviewed-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shrikrishna Khare 2015-01-09 15:19:14 -08:00 committed by David S. Miller
parent 7bfa014500
commit 5ec82c1e4c
2 changed files with 27 additions and 21 deletions
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44
drivers/net/vmxnet3/vmxnet3_drv.c
View File

@ -3290,27 +3290,15 @@ skip_arp:
static int
vmxnet3_resume(struct device *device)
{
int err, i = 0;
int err;
unsigned long flags;
struct pci_dev *pdev = to_pci_dev(device);
struct net_device *netdev = pci_get_drvdata(pdev);
struct vmxnet3_adapter *adapter = netdev_priv(netdev);
struct Vmxnet3_PMConf *pmConf;
if (!netif_running(netdev))
return 0;
/* Destroy wake-up filters. */
pmConf = adapter->pm_conf;
memset(pmConf, 0, sizeof(*pmConf));
adapter->shared->devRead.pmConfDesc.confVer = cpu_to_le32(1);
adapter->shared->devRead.pmConfDesc.confLen = cpu_to_le32(sizeof(
*pmConf));
adapter->shared->devRead.pmConfDesc.confPA =
cpu_to_le64(adapter->pm_conf_pa);
netif_device_attach(netdev);
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
err = pci_enable_device_mem(pdev);
@ -3319,15 +3307,31 @@ vmxnet3_resume(struct device *device)
pci_enable_wake(pdev, PCI_D0, 0);
vmxnet3_alloc_intr_resources(adapter);
/* During hibernate and suspend, device has to be reinitialized as the
* device state need not be preserved.
*/
/* Need not check adapter state as other reset tasks cannot run during
* device resume.
*/
spin_lock_irqsave(&adapter->cmd_lock, flags);
VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
VMXNET3_CMD_UPDATE_PMCFG);
VMXNET3_CMD_QUIESCE_DEV);
spin_unlock_irqrestore(&adapter->cmd_lock, flags);
vmxnet3_alloc_intr_resources(adapter);
vmxnet3_request_irqs(adapter);
for (i = 0; i < adapter->num_rx_queues; i++)
napi_enable(&adapter->rx_queue[i].napi);
vmxnet3_enable_all_intrs(adapter);
vmxnet3_tq_cleanup_all(adapter);
vmxnet3_rq_cleanup_all(adapter);
vmxnet3_reset_dev(adapter);
err = vmxnet3_activate_dev(adapter);
if (err != 0) {
netdev_err(netdev,
"failed to re-activate on resume, error: %d", err);
vmxnet3_force_close(adapter);
return err;
}
netif_device_attach(netdev);
return 0;
}
@ -3335,6 +3339,8 @@ vmxnet3_resume(struct device *device)
static const struct dev_pm_ops vmxnet3_pm_ops = {
.suspend = vmxnet3_suspend,
.resume = vmxnet3_resume,
.freeze = vmxnet3_suspend,
.restore = vmxnet3_resume,
};
#endif

4
drivers/net/vmxnet3/vmxnet3_int.h
View File

@ -69,10 +69,10 @@
/*
* Version numbers
*/
#define VMXNET3_DRIVER_VERSION_STRING "1.3.1.0-k"
#define VMXNET3_DRIVER_VERSION_STRING "1.3.2.0-k"
/* a 32-bit int, each byte encode a verion number in VMXNET3_DRIVER_VERSION */
#define VMXNET3_DRIVER_VERSION_NUM 0x01030100
#define VMXNET3_DRIVER_VERSION_NUM 0x01030200
#if defined(CONFIG_PCI_MSI)
/* RSS only makes sense if MSI-X is supported. */