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-rw-r--r--drivers/net/ethernet/renesas/ravb_main.c132
1 files changed, 103 insertions, 29 deletions
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 529670852bd6..f9fb772b05c7 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -1935,16 +1935,21 @@ static int ravb_open(struct net_device *ndev)
{
struct ravb_private *priv = netdev_priv(ndev);
const struct ravb_hw_info *info = priv->info;
+ struct device *dev = &priv->pdev->dev;
int error;
napi_enable(&priv->napi[RAVB_BE]);
if (info->nc_queues)
napi_enable(&priv->napi[RAVB_NC]);
+ error = pm_runtime_resume_and_get(dev);
+ if (error < 0)
+ goto out_napi_off;
+
/* Set AVB config mode */
error = ravb_set_config_mode(ndev);
if (error)
- goto out_napi_off;
+ goto out_rpm_put;
ravb_set_delay_mode(ndev);
ravb_write(ndev, priv->desc_bat_dma, DBAT);
@@ -1978,6 +1983,9 @@ out_ptp_stop:
ravb_stop_dma(ndev);
out_set_reset:
ravb_set_opmode(ndev, CCC_OPC_RESET);
+out_rpm_put:
+ pm_runtime_mark_last_busy(dev);
+ pm_runtime_put_autosuspend(dev);
out_napi_off:
if (info->nc_queues)
napi_disable(&priv->napi[RAVB_NC]);
@@ -2244,8 +2252,15 @@ static struct net_device_stats *ravb_get_stats(struct net_device *ndev)
struct ravb_private *priv = netdev_priv(ndev);
const struct ravb_hw_info *info = priv->info;
struct net_device_stats *nstats, *stats0, *stats1;
+ struct device *dev = &priv->pdev->dev;
nstats = &ndev->stats;
+
+ pm_runtime_get_noresume(dev);
+
+ if (!pm_runtime_active(dev))
+ goto out_rpm_put;
+
stats0 = &priv->stats[RAVB_BE];
if (info->tx_counters) {
@@ -2287,6 +2302,8 @@ static struct net_device_stats *ravb_get_stats(struct net_device *ndev)
nstats->rx_over_errors += stats1->rx_over_errors;
}
+out_rpm_put:
+ pm_runtime_put_noidle(dev);
return nstats;
}
@@ -2309,6 +2326,8 @@ static int ravb_close(struct net_device *ndev)
struct ravb_private *priv = netdev_priv(ndev);
const struct ravb_hw_info *info = priv->info;
struct ravb_tstamp_skb *ts_skb, *ts_skb2;
+ struct device *dev = &priv->pdev->dev;
+ int error;
netif_tx_stop_all_queues(ndev);
@@ -2317,6 +2336,14 @@ static int ravb_close(struct net_device *ndev)
ravb_write(ndev, 0, RIC2);
ravb_write(ndev, 0, TIC);
+ /* PHY disconnect */
+ if (ndev->phydev) {
+ phy_stop(ndev->phydev);
+ phy_disconnect(ndev->phydev);
+ if (of_phy_is_fixed_link(np))
+ of_phy_deregister_fixed_link(np);
+ }
+
/* Stop PTP Clock driver */
if (info->gptp || info->ccc_gac)
ravb_ptp_stop(ndev);
@@ -2335,14 +2362,6 @@ static int ravb_close(struct net_device *ndev)
}
}
- /* PHY disconnect */
- if (ndev->phydev) {
- phy_stop(ndev->phydev);
- phy_disconnect(ndev->phydev);
- if (of_phy_is_fixed_link(np))
- of_phy_deregister_fixed_link(np);
- }
-
cancel_work_sync(&priv->work);
if (info->nc_queues)
@@ -2354,8 +2373,18 @@ static int ravb_close(struct net_device *ndev)
if (info->nc_queues)
ravb_ring_free(ndev, RAVB_NC);
+ /* Update statistics. */
+ ravb_get_stats(ndev);
+
/* Set reset mode. */
- return ravb_set_opmode(ndev, CCC_OPC_RESET);
+ error = ravb_set_opmode(ndev, CCC_OPC_RESET);
+ if (error)
+ return error;
+
+ pm_runtime_mark_last_busy(dev);
+ pm_runtime_put_autosuspend(dev);
+
+ return 0;
}
static int ravb_hwtstamp_get(struct net_device *ndev, struct ifreq *req)
@@ -2526,7 +2555,6 @@ static int ravb_set_features_gbeth(struct net_device *ndev,
goto done;
}
- ndev->features = features;
done:
spin_unlock_irqrestore(&priv->lock, flags);
@@ -2541,8 +2569,6 @@ static int ravb_set_features_rcar(struct net_device *ndev,
if (changed & NETIF_F_RXCSUM)
ravb_set_rx_csum(ndev, features & NETIF_F_RXCSUM);
- ndev->features = features;
-
return 0;
}
@@ -2551,8 +2577,24 @@ static int ravb_set_features(struct net_device *ndev,
{
struct ravb_private *priv = netdev_priv(ndev);
const struct ravb_hw_info *info = priv->info;
+ struct device *dev = &priv->pdev->dev;
+ int ret;
+
+ pm_runtime_get_noresume(dev);
+
+ if (pm_runtime_active(dev))
+ ret = info->set_feature(ndev, features);
+ else
+ ret = 0;
+
+ pm_runtime_put_noidle(dev);
+
+ if (ret)
+ return ret;
+
+ ndev->features = features;
- return info->set_feature(ndev, features);
+ return 0;
}
static const struct net_device_ops ravb_netdev_ops = {
@@ -2743,24 +2785,27 @@ static int ravb_setup_irq(struct ravb_private *priv, const char *irq_name,
struct device *dev = &pdev->dev;
const char *dev_name;
unsigned long flags;
- int error;
+ int error, irq_num;
if (irq_name) {
dev_name = devm_kasprintf(dev, GFP_KERNEL, "%s:%s", ndev->name, ch);
if (!dev_name)
return -ENOMEM;
- *irq = platform_get_irq_byname(pdev, irq_name);
+ irq_num = platform_get_irq_byname(pdev, irq_name);
flags = 0;
} else {
dev_name = ndev->name;
- *irq = platform_get_irq(pdev, 0);
+ irq_num = platform_get_irq(pdev, 0);
flags = IRQF_SHARED;
}
- if (*irq < 0)
- return *irq;
+ if (irq_num < 0)
+ return irq_num;
- error = devm_request_irq(dev, *irq, handler, flags, dev_name, ndev);
+ if (irq)
+ *irq = irq_num;
+
+ error = devm_request_irq(dev, irq_num, handler, flags, dev_name, ndev);
if (error)
netdev_err(ndev, "cannot request IRQ %s\n", dev_name);
@@ -2772,7 +2817,7 @@ static int ravb_setup_irqs(struct ravb_private *priv)
const struct ravb_hw_info *info = priv->info;
struct net_device *ndev = priv->ndev;
const char *irq_name, *emac_irq_name;
- int error, irq;
+ int error;
if (!info->multi_irqs)
return ravb_setup_irq(priv, NULL, NULL, &ndev->irq, ravb_interrupt);
@@ -2795,28 +2840,28 @@ static int ravb_setup_irqs(struct ravb_private *priv)
return error;
if (info->err_mgmt_irqs) {
- error = ravb_setup_irq(priv, "err_a", "err_a", &irq, ravb_multi_interrupt);
+ error = ravb_setup_irq(priv, "err_a", "err_a", NULL, ravb_multi_interrupt);
if (error)
return error;
- error = ravb_setup_irq(priv, "mgmt_a", "mgmt_a", &irq, ravb_multi_interrupt);
+ error = ravb_setup_irq(priv, "mgmt_a", "mgmt_a", NULL, ravb_multi_interrupt);
if (error)
return error;
}
- error = ravb_setup_irq(priv, "ch0", "ch0:rx_be", &irq, ravb_be_interrupt);
+ error = ravb_setup_irq(priv, "ch0", "ch0:rx_be", NULL, ravb_be_interrupt);
if (error)
return error;
- error = ravb_setup_irq(priv, "ch1", "ch1:rx_nc", &irq, ravb_nc_interrupt);
+ error = ravb_setup_irq(priv, "ch1", "ch1:rx_nc", NULL, ravb_nc_interrupt);
if (error)
return error;
- error = ravb_setup_irq(priv, "ch18", "ch18:tx_be", &irq, ravb_be_interrupt);
+ error = ravb_setup_irq(priv, "ch18", "ch18:tx_be", NULL, ravb_be_interrupt);
if (error)
return error;
- return ravb_setup_irq(priv, "ch19", "ch19:tx_nc", &irq, ravb_nc_interrupt);
+ return ravb_setup_irq(priv, "ch19", "ch19:tx_nc", NULL, ravb_nc_interrupt);
}
static int ravb_probe(struct platform_device *pdev)
@@ -2894,6 +2939,8 @@ static int ravb_probe(struct platform_device *pdev)
clk_prepare(priv->refclk);
platform_set_drvdata(pdev, ndev);
+ pm_runtime_set_autosuspend_delay(&pdev->dev, 100);
+ pm_runtime_use_autosuspend(&pdev->dev);
pm_runtime_enable(&pdev->dev);
error = pm_runtime_resume_and_get(&pdev->dev);
if (error < 0)
@@ -2999,6 +3046,9 @@ static int ravb_probe(struct platform_device *pdev)
netdev_info(ndev, "Base address at %#x, %pM, IRQ %d.\n",
(u32)ndev->base_addr, ndev->dev_addr, ndev->irq);
+ pm_runtime_mark_last_busy(&pdev->dev);
+ pm_runtime_put_autosuspend(&pdev->dev);
+
return 0;
out_napi_del:
@@ -3016,6 +3066,7 @@ out_rpm_put:
pm_runtime_put(&pdev->dev);
out_rpm_disable:
pm_runtime_disable(&pdev->dev);
+ pm_runtime_dont_use_autosuspend(&pdev->dev);
clk_unprepare(priv->refclk);
out_reset_assert:
reset_control_assert(rstc);
@@ -3029,6 +3080,12 @@ static void ravb_remove(struct platform_device *pdev)
struct net_device *ndev = platform_get_drvdata(pdev);
struct ravb_private *priv = netdev_priv(ndev);
const struct ravb_hw_info *info = priv->info;
+ struct device *dev = &priv->pdev->dev;
+ int error;
+
+ error = pm_runtime_resume_and_get(dev);
+ if (error < 0)
+ return;
unregister_netdev(ndev);
if (info->nc_queues)
@@ -3040,8 +3097,9 @@ static void ravb_remove(struct platform_device *pdev)
dma_free_coherent(ndev->dev.parent, priv->desc_bat_size, priv->desc_bat,
priv->desc_bat_dma);
- pm_runtime_put_sync(&pdev->dev);
+ pm_runtime_put_sync_suspend(&pdev->dev);
pm_runtime_disable(&pdev->dev);
+ pm_runtime_dont_use_autosuspend(dev);
clk_unprepare(priv->refclk);
reset_control_assert(priv->rstc);
free_netdev(ndev);
@@ -3123,6 +3181,10 @@ static int ravb_suspend(struct device *dev)
if (ret)
return ret;
+ ret = pm_runtime_force_suspend(&priv->pdev->dev);
+ if (ret)
+ return ret;
+
reset_assert:
return reset_control_assert(priv->rstc);
}
@@ -3145,16 +3207,28 @@ static int ravb_resume(struct device *dev)
ret = ravb_wol_restore(ndev);
if (ret)
return ret;
+ } else {
+ ret = pm_runtime_force_resume(dev);
+ if (ret)
+ return ret;
}
/* Reopening the interface will restore the device to the working state. */
ret = ravb_open(ndev);
if (ret < 0)
- return ret;
+ goto out_rpm_put;
ravb_set_rx_mode(ndev);
netif_device_attach(ndev);
+ return 0;
+
+out_rpm_put:
+ if (!priv->wol_enabled) {
+ pm_runtime_mark_last_busy(dev);
+ pm_runtime_put_autosuspend(dev);
+ }
+
return ret;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-20 00:03:55 +0000