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authorShrikrishna Khare <skhare@vmware.com>2015-01-09 15:19:14 -0800
committerDavid S. Miller <davem@davemloft.net>2015-01-12 16:43:58 -0500
commit5ec82c1e4c86cf2fa115a2ae6d3576a100b47c42 (patch)
tree08680c0a14adb519c4a913a2e82e1ede2e649486 /drivers/net/vmxnet3/vmxnet3_drv.c
parentbonding: cleanup bond_opts array (diff)
downloadlinux-dev-5ec82c1e4c86cf2fa115a2ae6d3576a100b47c42.tar.xz
linux-dev-5ec82c1e4c86cf2fa115a2ae6d3576a100b47c42.zip
Driver: Vmxnet3: Reinitialize vmxnet3 backend on wakeup from hibernate
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>
Diffstat (limited to 'drivers/net/vmxnet3/vmxnet3_drv.c')
-rw-r--r--drivers/net/vmxnet3/vmxnet3_drv.c44
1 files changed, 25 insertions, 19 deletions
diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 7af1f5cfa87a..31439818c27e 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -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