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net: stmmac: move PHY handling out of __stmmac_open()/release()

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Move the PHY attachment/detachment from the network driver out of
__stmmac_open() and __stmmac_release() into stmmac_open() and
stmmac_release() where these actions will only happen when the
interface is administratively brought up or down. It does not make
sense to detach and re-attach the PHY during a change of MTU.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/E1v11A3-0000000774G-3PKY@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Russell King (Oracle)
2025-09-23 12:26:19 +01:00
committed by Jakub Kicinski
parent bae62989a3
commit db299a0c09
1 changed files with 17 additions and 12 deletions
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29
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
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@@ -3937,10 +3937,6 @@ static int __stmmac_open(struct net_device *dev,
u32 chan;
int ret;
ret = stmmac_init_phy(dev);
if (ret)
return ret;
for (int i = 0; i < MTL_MAX_TX_QUEUES; i++)
if (priv->dma_conf.tx_queue[i].tbs & STMMAC_TBS_EN)
dma_conf->tx_queue[i].tbs = priv->dma_conf.tx_queue[i].tbs;
@@ -3990,7 +3986,6 @@ irq_error:
stmmac_release_ptp(priv);
init_error:
phylink_disconnect_phy(priv->phylink);
return ret;
}
@@ -4010,18 +4005,28 @@ static int stmmac_open(struct net_device *dev)
ret = pm_runtime_resume_and_get(priv->device);
if (ret < 0)
goto err;
goto err_dma_resources;
ret = stmmac_init_phy(dev);
if (ret)
goto err_runtime_pm;
ret = __stmmac_open(dev, dma_conf);
if (ret) {
pm_runtime_put(priv->device);
err:
free_dma_desc_resources(priv, dma_conf);
}
if (ret)
goto err_disconnect_phy;
kfree(dma_conf);
return ret;
err_disconnect_phy:
phylink_disconnect_phy(priv->phylink);
err_runtime_pm:
pm_runtime_put(priv->device);
err_dma_resources:
free_dma_desc_resources(priv, dma_conf);
kfree(dma_conf);
return ret;
}
static void __stmmac_release(struct net_device *dev)
@@ -4038,7 +4043,6 @@ static void __stmmac_release(struct net_device *dev)
/* Stop and disconnect the PHY */
phylink_stop(priv->phylink);
phylink_disconnect_phy(priv->phylink);
stmmac_disable_all_queues(priv);
@@ -4078,6 +4082,7 @@ static int stmmac_release(struct net_device *dev)
__stmmac_release(dev);
phylink_disconnect_phy(priv->phylink);
pm_runtime_put(priv->device);
return 0;