Re: [RFC/RFTv3 12/24] net: FEC: Fixup EEE
From: Oleksij Rempel <o.rempel@pengutronix.de>
Date: 2023-05-19 10:27:35
On Fri, Mar 31, 2023 at 02:55:06AM +0200, Andrew Lunn wrote:
The enabling/disabling of EEE in the MAC should happen as a result of auto negotiation. So move the enable/disable into fec_enet_adjust_link() which gets called by phylib when there is a change in link status. fec_enet_set_eee() now just stores away the LTI timer value. Everything else is passed to phylib, so it can correctly setup the PHY. fec_enet_get_eee() relies on phylib doing most of the work, the MAC driver just adds the LTI timer value. Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested on imx8mp based debix mode a board. Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
quoted hunk ↗ jump to hunk
--- v2: Only call fec_enet_eee_mode_set for those that support EEE --- drivers/net/ethernet/freescale/fec_main.c | 28 ++++------------------- 1 file changed, 4 insertions(+), 24 deletions(-)diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 462755f5d33e..fda1f9ff32b9 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c@@ -1930,18 +1930,13 @@ static int fec_enet_us_to_tx_cycle(struct net_device *ndev, int us) return us * (fep->clk_ref_rate / 1000) / 1000; } -static int fec_enet_eee_mode_set(struct net_device *ndev, bool enable) +static int fec_enet_eee_mode_set(struct net_device *ndev, bool eee_active) { struct fec_enet_private *fep = netdev_priv(ndev); struct ethtool_eee *p = &fep->eee; unsigned int sleep_cycle, wake_cycle; - int ret = 0; - - if (enable) { - ret = phy_init_eee(ndev->phydev, false); - if (ret) - return ret; + if (eee_active) { sleep_cycle = fec_enet_us_to_tx_cycle(ndev, p->tx_lpi_timer); wake_cycle = sleep_cycle; } else {@@ -1949,10 +1944,6 @@ static int fec_enet_eee_mode_set(struct net_device *ndev, bool enable) wake_cycle = 0; } - p->tx_lpi_enabled = enable; - p->eee_enabled = enable; - p->eee_active = enable; - writel(sleep_cycle, fep->hwp + FEC_LPI_SLEEP); writel(wake_cycle, fep->hwp + FEC_LPI_WAKE);@@ -1997,6 +1988,8 @@ static void fec_enet_adjust_link(struct net_device *ndev) netif_tx_unlock_bh(ndev); napi_enable(&fep->napi); } + if (fep->quirks & FEC_QUIRK_HAS_EEE) + fec_enet_eee_mode_set(ndev, phy_dev->eee_active); } else { if (fep->link) { napi_disable(&fep->napi);@@ -3109,10 +3102,7 @@ fec_enet_get_eee(struct net_device *ndev, struct ethtool_eee *edata) if (!netif_running(ndev)) return -ENETDOWN; - edata->eee_enabled = p->eee_enabled; - edata->eee_active = p->eee_active; edata->tx_lpi_timer = p->tx_lpi_timer; - edata->tx_lpi_enabled = p->tx_lpi_enabled; return phy_ethtool_get_eee(ndev->phydev, edata); }@@ -3122,7 +3112,6 @@ fec_enet_set_eee(struct net_device *ndev, struct ethtool_eee *edata) { struct fec_enet_private *fep = netdev_priv(ndev); struct ethtool_eee *p = &fep->eee; - int ret = 0; if (!(fep->quirks & FEC_QUIRK_HAS_EEE)) return -EOPNOTSUPP;@@ -3132,15 +3121,6 @@ fec_enet_set_eee(struct net_device *ndev, struct ethtool_eee *edata) p->tx_lpi_timer = edata->tx_lpi_timer; - if (!edata->eee_enabled || !edata->tx_lpi_enabled || - !edata->tx_lpi_timer) - ret = fec_enet_eee_mode_set(ndev, false); - else - ret = fec_enet_eee_mode_set(ndev, true); - - if (ret) - return ret; - return phy_ethtool_set_eee(ndev->phydev, edata); }-- 2.40.0
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