netdev - [PATCH net-next v5 1/9] net: usb: r8152: Use linkmode helpers for EEE

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Message-Id: <20240226-keee-u32-cleanup-v5-1-9e7323c41c38@lunn.ch>
Date: Mon, 26 Feb 2024 19:29:07 -0600
From: Andrew Lunn <andrew@...n.ch>
To: "David S. Miller" <davem@...emloft.net>, 
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>, Ariel Elior <aelior@...vell.com>, 
 Manish Chopra <manishc@...vell.com>, 
 Jesse Brandeburg <jesse.brandeburg@...el.com>, 
 Tony Nguyen <anthony.l.nguyen@...el.com>
Cc: linux-usb@...r.kernel.org, netdev@...r.kernel.org, 
 linux-kernel@...r.kernel.org, intel-wired-lan@...ts.osuosl.org, 
 Andrew Lunn <andrew@...n.ch>, Simon Horman <horms@...nel.org>
Subject: [PATCH net-next v5 1/9] net: usb: r8152: Use linkmode helpers for
 EEE

Make use of the existing linkmode helpers for converting PHY EEE
register values into links modes, now that ethtool_keee uses link
modes, rather than u32 values.

Rework determining if EEE is active to make is similar as to how
phylib decides, and make use of a phylib helper to validate if EEE is
valid in for the current link mode. This then requires that PHYLIB is
selected.

Reviewed-by: Simon Horman <horms@...nel.org>
Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
 drivers/net/usb/Kconfig |  1 +
 drivers/net/usb/r8152.c | 33 ++++++++++++++++-----------------
 2 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 3fd7dccf0f9c..3c360d4f0635 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -99,6 +99,7 @@ config USB_RTL8150
 config USB_RTL8152
 	tristate "Realtek RTL8152/RTL8153 Based USB Ethernet Adapters"
 	select MII
+	select PHYLIB
 	select CRC32
 	select CRYPTO
 	select CRYPTO_HASH
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 3d806b3ff425..6d0dc2c967c4 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -10,6 +10,7 @@
 #include <linux/etherdevice.h>
 #include <linux/mii.h>
 #include <linux/ethtool.h>
+#include <linux/phy.h>
 #include <linux/usb.h>
 #include <linux/crc32.h>
 #include <linux/if_vlan.h>
@@ -8924,30 +8925,29 @@ static void rtl8152_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 
 static int r8152_get_eee(struct r8152 *tp, struct ethtool_keee *eee)
 {
-	u32 lp, adv, supported = 0;
+	__ETHTOOL_DECLARE_LINK_MODE_MASK(common);
 	u16 val;
 
 	val = r8152_mmd_read(tp, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE);
-	supported = mmd_eee_cap_to_ethtool_sup_t(val);
+	mii_eee_cap1_mod_linkmode_t(eee->supported, val);
 
 	val = r8152_mmd_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV);
-	adv = mmd_eee_adv_to_ethtool_adv_t(val);
+	mii_eee_cap1_mod_linkmode_t(eee->advertised, val);
 
 	val = r8152_mmd_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_LPABLE);
-	lp = mmd_eee_adv_to_ethtool_adv_t(val);
+	mii_eee_cap1_mod_linkmode_t(eee->lp_advertised, val);
 
 	eee->eee_enabled = tp->eee_en;
-	eee->eee_active = !!(supported & adv & lp);
-	eee->supported_u32 = supported;
-	eee->advertised_u32 = tp->eee_adv;
-	eee->lp_advertised_u32 = lp;
+
+	linkmode_and(common, eee->advertised, eee->lp_advertised);
+	eee->eee_active = phy_check_valid(tp->speed, tp->duplex, common);
 
 	return 0;
 }
 
 static int r8152_set_eee(struct r8152 *tp, struct ethtool_keee *eee)
 {
-	u16 val = ethtool_adv_to_mmd_eee_adv_t(eee->advertised_u32);
+	u16 val = linkmode_to_mii_eee_cap1_t(eee->advertised);
 
 	tp->eee_en = eee->eee_enabled;
 	tp->eee_adv = val;
@@ -8959,23 +8959,22 @@ static int r8152_set_eee(struct r8152 *tp, struct ethtool_keee *eee)
 
 static int r8153_get_eee(struct r8152 *tp, struct ethtool_keee *eee)
 {
-	u32 lp, adv, supported = 0;
+	__ETHTOOL_DECLARE_LINK_MODE_MASK(common);
 	u16 val;
 
 	val = ocp_reg_read(tp, OCP_EEE_ABLE);
-	supported = mmd_eee_cap_to_ethtool_sup_t(val);
+	mii_eee_cap1_mod_linkmode_t(eee->supported, val);
 
 	val = ocp_reg_read(tp, OCP_EEE_ADV);
-	adv = mmd_eee_adv_to_ethtool_adv_t(val);
+	mii_eee_cap1_mod_linkmode_t(eee->advertised, val);
 
 	val = ocp_reg_read(tp, OCP_EEE_LPABLE);
-	lp = mmd_eee_adv_to_ethtool_adv_t(val);
+	mii_eee_cap1_mod_linkmode_t(eee->lp_advertised, val);
 
 	eee->eee_enabled = tp->eee_en;
-	eee->eee_active = !!(supported & adv & lp);
-	eee->supported_u32 = supported;
-	eee->advertised_u32 = tp->eee_adv;
-	eee->lp_advertised_u32 = lp;
+
+	linkmode_and(common, eee->advertised, eee->lp_advertised);
+	eee->eee_active = phy_check_valid(tp->speed, tp->duplex, common);
 
 	return 0;
 }

-- 
2.43.0