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Message-Id: <E1sD0PF-00EzCJ-UL@rmk-PC.armlinux.org.uk>
Date: Fri, 31 May 2024 12:26:45 +0100
From: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
To: Serge Semin <fancer.lancer@...il.com>
Cc: Andrew Halaney <ahalaney@...hat.com>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
Jose Abreu <joabreu@...opsys.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
netdev@...r.kernel.org,
linux-stm32@...md-mailman.stormreply.com,
linux-arm-kernel@...ts.infradead.org
Subject: [PATCH RFC net-next v2 7/8] net: stmmac: remove obsolete pcs methods
and associated code
The pcs_ctrl_ane() and pcs_get_adv_lp(0 methods are no longer required
as this will be handled by the mac_pcs phylink_pcs instance. Remove
these methods, their common implementation, the pcs_link, pcs_duplex and
pcs_speed members of struct stmmac_extra_stats, and
stmmac_has_mac_phylink_select_pcs().
Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
drivers/net/ethernet/stmicro/stmmac/common.h | 3 -
drivers/net/ethernet/stmicro/stmmac/hwif.h | 6 -
.../ethernet/stmicro/stmmac/stmmac_ethtool.c | 115 +-----------------
.../net/ethernet/stmicro/stmmac/stmmac_main.c | 13 --
.../net/ethernet/stmicro/stmmac/stmmac_pcs.h | 30 -----
5 files changed, 2 insertions(+), 165 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 940e83fa1202..a66b836996d6 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -191,9 +191,6 @@ struct stmmac_extra_stats {
unsigned long irq_pcs_ane_n;
unsigned long irq_pcs_link_n;
unsigned long irq_rgmii_n;
- unsigned long pcs_link;
- unsigned long pcs_duplex;
- unsigned long pcs_speed;
/* debug register */
unsigned long mtl_tx_status_fifo_full;
unsigned long mtl_tx_fifo_not_empty;
diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.h b/drivers/net/ethernet/stmicro/stmmac/hwif.h
index aa5f6e40cb53..8a17e7d6e37d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/hwif.h
+++ b/drivers/net/ethernet/stmicro/stmmac/hwif.h
@@ -378,7 +378,6 @@ struct stmmac_ops {
/* PCS calls */
void (*pcs_ctrl_ane)(void __iomem *ioaddr, bool ane, bool srgmi_ral,
bool loopback);
- void (*pcs_get_adv_lp)(void __iomem *ioaddr, struct rgmii_adv *adv);
/* Safety Features */
int (*safety_feat_config)(void __iomem *ioaddr, unsigned int asp,
struct stmmac_safety_feature_cfg *safety_cfg);
@@ -495,8 +494,6 @@ struct stmmac_ops {
stmmac_do_void_callback(__priv, mac, debug, __priv, __args)
#define stmmac_pcs_ctrl_ane(__priv, __args...) \
stmmac_do_void_callback(__priv, mac, pcs_ctrl_ane, __args)
-#define stmmac_pcs_get_adv_lp(__priv, __args...) \
- stmmac_do_void_callback(__priv, mac, pcs_get_adv_lp, __args)
#define stmmac_safety_feat_config(__priv, __args...) \
stmmac_do_callback(__priv, mac, safety_feat_config, __args)
#define stmmac_safety_feat_irq_status(__priv, __args...) \
@@ -542,9 +539,6 @@ struct stmmac_ops {
#define stmmac_fpe_irq_status(__priv, __args...) \
stmmac_do_callback(__priv, mac, fpe_irq_status, __args)
-#define stmmac_has_mac_phylink_select_pcs(__priv) \
- ((__priv)->hw->mac->phylink_select_pcs != NULL)
-
/* PTP and HW Timer helpers */
struct stmmac_hwtimestamp {
void (*config_hw_tstamping) (void __iomem *ioaddr, u32 data);
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
index 7c6530d63ade..db439d00f692 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
@@ -321,85 +321,6 @@ static int stmmac_ethtool_get_link_ksettings(struct net_device *dev,
{
struct stmmac_priv *priv = netdev_priv(dev);
- if (!(priv->plat->flags & STMMAC_FLAG_HAS_INTEGRATED_PCS) &&
- (priv->hw->pcs & STMMAC_PCS_RGMII ||
- priv->hw->pcs & STMMAC_PCS_SGMII) &&
- !stmmac_has_mac_phylink_select_pcs(priv)) {
- struct rgmii_adv adv;
- u32 supported, advertising, lp_advertising;
-
- if (!priv->xstats.pcs_link) {
- cmd->base.speed = SPEED_UNKNOWN;
- cmd->base.duplex = DUPLEX_UNKNOWN;
- return 0;
- }
- cmd->base.duplex = priv->xstats.pcs_duplex;
-
- cmd->base.speed = priv->xstats.pcs_speed;
-
- /* Get and convert ADV/LP_ADV from the HW AN registers */
- if (stmmac_pcs_get_adv_lp(priv, priv->ioaddr, &adv))
- return -EOPNOTSUPP; /* should never happen indeed */
-
- /* Encoding of PSE bits is defined in 802.3z, 37.2.1.4 */
-
- ethtool_convert_link_mode_to_legacy_u32(
- &supported, cmd->link_modes.supported);
- ethtool_convert_link_mode_to_legacy_u32(
- &advertising, cmd->link_modes.advertising);
- ethtool_convert_link_mode_to_legacy_u32(
- &lp_advertising, cmd->link_modes.lp_advertising);
-
- if (adv.pause & STMMAC_PCS_PAUSE)
- advertising |= ADVERTISED_Pause;
- if (adv.pause & STMMAC_PCS_ASYM_PAUSE)
- advertising |= ADVERTISED_Asym_Pause;
- if (adv.lp_pause & STMMAC_PCS_PAUSE)
- lp_advertising |= ADVERTISED_Pause;
- if (adv.lp_pause & STMMAC_PCS_ASYM_PAUSE)
- lp_advertising |= ADVERTISED_Asym_Pause;
-
- /* Reg49[3] always set because ANE is always supported */
- cmd->base.autoneg = ADVERTISED_Autoneg;
- supported |= SUPPORTED_Autoneg;
- advertising |= ADVERTISED_Autoneg;
- lp_advertising |= ADVERTISED_Autoneg;
-
- if (adv.duplex) {
- supported |= (SUPPORTED_1000baseT_Full |
- SUPPORTED_100baseT_Full |
- SUPPORTED_10baseT_Full);
- advertising |= (ADVERTISED_1000baseT_Full |
- ADVERTISED_100baseT_Full |
- ADVERTISED_10baseT_Full);
- } else {
- supported |= (SUPPORTED_1000baseT_Half |
- SUPPORTED_100baseT_Half |
- SUPPORTED_10baseT_Half);
- advertising |= (ADVERTISED_1000baseT_Half |
- ADVERTISED_100baseT_Half |
- ADVERTISED_10baseT_Half);
- }
- if (adv.lp_duplex)
- lp_advertising |= (ADVERTISED_1000baseT_Full |
- ADVERTISED_100baseT_Full |
- ADVERTISED_10baseT_Full);
- else
- lp_advertising |= (ADVERTISED_1000baseT_Half |
- ADVERTISED_100baseT_Half |
- ADVERTISED_10baseT_Half);
- cmd->base.port = PORT_OTHER;
-
- ethtool_convert_legacy_u32_to_link_mode(
- cmd->link_modes.supported, supported);
- ethtool_convert_legacy_u32_to_link_mode(
- cmd->link_modes.advertising, advertising);
- ethtool_convert_legacy_u32_to_link_mode(
- cmd->link_modes.lp_advertising, lp_advertising);
-
- return 0;
- }
-
return phylink_ethtool_ksettings_get(priv->phylink, cmd);
}
@@ -409,21 +330,6 @@ stmmac_ethtool_set_link_ksettings(struct net_device *dev,
{
struct stmmac_priv *priv = netdev_priv(dev);
- if (!(priv->plat->flags & STMMAC_FLAG_HAS_INTEGRATED_PCS) &&
- (priv->hw->pcs & STMMAC_PCS_RGMII ||
- priv->hw->pcs & STMMAC_PCS_SGMII) &&
- !stmmac_has_mac_phylink_select_pcs(priv)) {
- /* Only support ANE */
- if (cmd->base.autoneg != AUTONEG_ENABLE)
- return -EINVAL;
-
- mutex_lock(&priv->lock);
- stmmac_pcs_ctrl_ane(priv, priv->ioaddr, 1, priv->hw->ps, 0);
- mutex_unlock(&priv->lock);
-
- return 0;
- }
-
return phylink_ethtool_ksettings_set(priv->phylink, cmd);
}
@@ -523,16 +429,8 @@ stmmac_get_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct stmmac_priv *priv = netdev_priv(netdev);
- struct rgmii_adv adv_lp;
- if (priv->hw->pcs && !stmmac_has_mac_phylink_select_pcs(priv) &&
- !stmmac_pcs_get_adv_lp(priv, priv->ioaddr, &adv_lp)) {
- pause->autoneg = 1;
- if (!adv_lp.pause)
- return;
- } else {
- phylink_ethtool_get_pauseparam(priv->phylink, pause);
- }
+ phylink_ethtool_get_pauseparam(priv->phylink, pause);
}
static int
@@ -540,17 +438,8 @@ stmmac_set_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct stmmac_priv *priv = netdev_priv(netdev);
- struct rgmii_adv adv_lp;
- if (priv->hw->pcs && !stmmac_has_mac_phylink_select_pcs(priv) &&
- !stmmac_pcs_get_adv_lp(priv, priv->ioaddr, &adv_lp)) {
- pause->autoneg = 1;
- if (!adv_lp.pause)
- return -EOPNOTSUPP;
- return 0;
- } else {
- return phylink_ethtool_set_pauseparam(priv->phylink, pause);
- }
+ return phylink_ethtool_set_pauseparam(priv->phylink, pause);
}
static u64 stmmac_get_rx_normal_irq_n(struct stmmac_priv *priv, int q)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 56c351e11952..ad19ba42c412 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -3485,9 +3485,6 @@ static int stmmac_hw_setup(struct net_device *dev, bool ptp_register)
}
}
- if (priv->hw->pcs && !stmmac_has_mac_phylink_select_pcs(priv))
- stmmac_pcs_ctrl_ane(priv, priv->ioaddr, 1, priv->hw->ps, 0);
-
/* set TX and RX rings length */
stmmac_set_rings_length(priv);
@@ -6053,16 +6050,6 @@ static void stmmac_common_interrupt(struct stmmac_priv *priv)
for (queue = 0; queue < queues_count; queue++)
stmmac_host_mtl_irq_status(priv, priv->hw, queue);
- /* PCS link status */
- if (priv->hw->pcs &&
- !(priv->plat->flags & STMMAC_FLAG_HAS_INTEGRATED_PCS) &&
- !stmmac_has_mac_phylink_select_pcs(priv)) {
- if (priv->xstats.pcs_link)
- netif_carrier_on(priv->dev);
- else
- netif_carrier_off(priv->dev);
- }
-
stmmac_timestamp_interrupt(priv, priv);
}
}
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_pcs.h b/drivers/net/ethernet/stmicro/stmmac/stmmac_pcs.h
index 888485fa2761..27ea7f4d789d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_pcs.h
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_pcs.h
@@ -108,36 +108,6 @@ static inline void dwmac_ctrl_ane(void __iomem *ioaddr, u32 reg, bool ane,
writel(value, ioaddr + GMAC_AN_CTRL(reg));
}
-/**
- * dwmac_get_adv_lp - Get ADV and LP cap
- * @ioaddr: IO registers pointer
- * @reg: Base address of the AN Control Register.
- * @adv_lp: structure to store the adv,lp status
- * Description: this is to expose the ANE advertisement and Link partner ability
- * status to ethtool support.
- */
-static inline void dwmac_get_adv_lp(void __iomem *ioaddr, u32 reg,
- struct rgmii_adv *adv_lp)
-{
- u32 value = readl(ioaddr + GMAC_ANE_ADV(reg));
-
- if (value & GMAC_ANE_FD)
- adv_lp->duplex = DUPLEX_FULL;
- if (value & GMAC_ANE_HD)
- adv_lp->duplex |= DUPLEX_HALF;
-
- adv_lp->pause = (value & GMAC_ANE_PSE) >> GMAC_ANE_PSE_SHIFT;
-
- value = readl(ioaddr + GMAC_ANE_LPA(reg));
-
- if (value & GMAC_ANE_FD)
- adv_lp->lp_duplex = DUPLEX_FULL;
- if (value & GMAC_ANE_HD)
- adv_lp->lp_duplex = DUPLEX_HALF;
-
- adv_lp->lp_pause = (value & GMAC_ANE_PSE) >> GMAC_ANE_PSE_SHIFT;
-}
-
int dwmac_pcs_config(struct mac_device_info *hw, unsigned int neg_mode,
phy_interface_t interface,
const unsigned long *advertising,
--
2.30.2
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