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Merge branch 'stmmac-eee-fix'

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Wong Vee Khee says:

====================
net: stmmac: Turn off EEE on MAC link down

This patch series ensure PCS EEE is turned off on the event of MAC
link down.

Tested on Intel AlderLake-S (STMMAC + MaxLinear GPY211 PHY).
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2021-10-06 11:18:27 +01:00
commit 9997080df0
2 changed files with 14 additions and 5 deletions
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6
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
View File

@ -477,6 +477,10 @@ bool stmmac_eee_init(struct stmmac_priv *priv)
stmmac_lpi_entry_timer_config(priv, 0);
del_timer_sync(&priv->eee_ctrl_timer);
stmmac_set_eee_timer(priv, priv->hw, 0, eee_tw_timer);
if (priv->hw->xpcs)
xpcs_config_eee(priv->hw->xpcs,
priv->plat->mult_fact_100ns,
false);
}
mutex_unlock(&priv->lock);
return false;
@ -1038,7 +1042,7 @@ static void stmmac_mac_link_down(struct phylink_config *config,
stmmac_mac_set(priv, priv->ioaddr, false);
priv->eee_active = false;
priv->tx_lpi_enabled = false;
stmmac_eee_init(priv);
priv->eee_enabled = stmmac_eee_init(priv);
stmmac_set_eee_pls(priv, priv->hw, false);
if (priv->dma_cap.fpesel)

13
drivers/net/pcs/pcs-xpcs.c
View File

@ -666,6 +666,10 @@ int xpcs_config_eee(struct dw_xpcs *xpcs, int mult_fact_100ns, int enable)
{
int ret;
ret = xpcs_read(xpcs, MDIO_MMD_VEND2, DW_VR_MII_EEE_MCTRL0);
if (ret < 0)
return ret;
if (enable) {
/* Enable EEE */
ret = DW_VR_MII_EEE_LTX_EN | DW_VR_MII_EEE_LRX_EN |
@ -673,9 +677,6 @@ int xpcs_config_eee(struct dw_xpcs *xpcs, int mult_fact_100ns, int enable)
DW_VR_MII_EEE_TX_EN_CTRL | DW_VR_MII_EEE_RX_EN_CTRL |
mult_fact_100ns << DW_VR_MII_EEE_MULT_FACT_100NS_SHIFT;
} else {
ret = xpcs_read(xpcs, MDIO_MMD_VEND2, DW_VR_MII_EEE_MCTRL0);
if (ret < 0)
return ret;
ret &= ~(DW_VR_MII_EEE_LTX_EN | DW_VR_MII_EEE_LRX_EN |
DW_VR_MII_EEE_TX_QUIET_EN | DW_VR_MII_EEE_RX_QUIET_EN |
DW_VR_MII_EEE_TX_EN_CTRL | DW_VR_MII_EEE_RX_EN_CTRL |
@ -690,7 +691,11 @@ int xpcs_config_eee(struct dw_xpcs *xpcs, int mult_fact_100ns, int enable)
if (ret < 0)
return ret;
ret |= DW_VR_MII_EEE_TRN_LPI;
if (enable)
ret |= DW_VR_MII_EEE_TRN_LPI;
else
ret &= ~DW_VR_MII_EEE_TRN_LPI;
return xpcs_write(xpcs, MDIO_MMD_VEND2, DW_VR_MII_EEE_MCTRL1, ret);
}
EXPORT_SYMBOL_GPL(xpcs_config_eee);