@@ -2197,12 +2197,63 @@ static void rtase_shutdown(struct pci_dev *pdev)
rtase_reset_interrupt(pdev, tp);
}
+static int rtase_suspend(struct device *device)
+{
+ struct net_device *dev = dev_get_drvdata(device);
+
+ if (netif_running(dev)) {
+ netif_device_detach(dev);
+ rtase_hw_reset(dev);
+ }
+
+ return 0;
+}
+
+static int rtase_resume(struct device *device)
+{
+ struct net_device *dev = dev_get_drvdata(device);
+ struct rtase_private *tp = netdev_priv(dev);
+ int ret;
+
+ /* restore last modified mac address */
+ rtase_rar_set(tp, dev->dev_addr);
+
+ if (!netif_running(dev))
+ goto out;
+
+ rtase_wait_for_quiescence(dev);
+
+ rtase_tx_clear(tp);
+ rtase_rx_clear(tp);
+
+ ret = rtase_init_ring(dev);
+ if (ret) {
+ netdev_err(dev, "unable to init ring\n");
+ rtase_free_desc(tp);
+ return -ENOMEM;
+ }
+
+ rtase_hw_config(dev);
+ /* always link, so start to transmit & receive */
+ rtase_hw_start(dev);
+
+ netif_device_attach(dev);
+out:
+
+ return 0;
+}
+
+static const struct dev_pm_ops rtase_pm_ops = {
+ SYSTEM_SLEEP_PM_OPS(rtase_suspend, rtase_resume)
+};
+
static struct pci_driver rtase_pci_driver = {
.name = KBUILD_MODNAME,
.id_table = rtase_pci_tbl,
.probe = rtase_init_one,
.remove = rtase_remove_one,
.shutdown = rtase_shutdown,
+ .driver.pm = pm_ptr(&rtase_pm_ops),
};
module_pci_driver(rtase_pci_driver);
Implement the pci_driver suspend function to enable the device to sleep, and implement the resume function to enable the device to resume operation. Signed-off-by: Justin Lai <justinlai0215@realtek.com> --- .../net/ethernet/realtek/rtase/rtase_main.c | 51 +++++++++++++++++++ 1 file changed, 51 insertions(+)