netdev - [PATCH RFC net-next 16/16] net: phylink: remove phylink_phy_no

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Message-Id: <E1tFrpB-005xR8-A6@rmk-PC.armlinux.org.uk>
Date: Tue, 26 Nov 2024 09:25:37 +0000
From: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
To: Andrew Lunn <andrew@...n.ch>,
	Heiner Kallweit <hkallweit1@...il.com>
Cc: Alexander Couzens <lynxis@...0.eu>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Daniel Golle <daniel@...rotopia.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Ioana Ciornei <ioana.ciornei@....com>,
	Jakub Kicinski <kuba@...nel.org>,
	Jose Abreu <Jose.Abreu@...opsys.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	Marcin Wojtas <marcin.s.wojtas@...il.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	netdev@...r.kernel.org,
	Paolo Abeni <pabeni@...hat.com>
Subject: [PATCH RFC net-next 16/16] net: phylink: remove
 phylink_phy_no_inband()

Remove phylink_phy_no_inband() now that we are handling the lack of
inband negotiation by querying the capabilities of the PHY and PCS,
and the BCM84881 PHY driver provides us the information necessary to
make the decision.

Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
 drivers/net/phy/phylink.c | 27 ++++++---------------------
 1 file changed, 6 insertions(+), 21 deletions(-)

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index fd2855fc0fc8..7d5ebab0afb1 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -3400,10 +3400,11 @@ static phy_interface_t phylink_choose_sfp_interface(struct phylink *pl,
 	return interface;
 }
 
-static void phylink_sfp_set_config(struct phylink *pl, u8 mode,
+static void phylink_sfp_set_config(struct phylink *pl,
 				   unsigned long *supported,
 				   struct phylink_link_state *state)
 {
+	u8 mode = MLO_AN_INBAND;
 	bool changed = false;
 
 	phylink_dbg(pl, "requesting link mode %s/%s with support %*pb\n",
@@ -3437,8 +3438,7 @@ static void phylink_sfp_set_config(struct phylink *pl, u8 mode,
 		phylink_mac_initial_config(pl, false);
 }
 
-static int phylink_sfp_config_phy(struct phylink *pl, u8 mode,
-				  struct phy_device *phy)
+static int phylink_sfp_config_phy(struct phylink *pl, struct phy_device *phy)
 {
 	__ETHTOOL_DECLARE_LINK_MODE_MASK(support);
 	struct phylink_link_state config;
@@ -3482,7 +3482,7 @@ static int phylink_sfp_config_phy(struct phylink *pl, u8 mode,
 
 	pl->link_port = pl->sfp_port;
 
-	phylink_sfp_set_config(pl, mode, support, &config);
+	phylink_sfp_set_config(pl, support, &config);
 
 	return 0;
 }
@@ -3557,7 +3557,7 @@ static int phylink_sfp_config_optical(struct phylink *pl)
 
 	pl->link_port = pl->sfp_port;
 
-	phylink_sfp_set_config(pl, MLO_AN_INBAND, pl->sfp_support, &config);
+	phylink_sfp_set_config(pl, pl->sfp_support, &config);
 
 	return 0;
 }
@@ -3628,19 +3628,9 @@ static void phylink_sfp_link_up(void *upstream)
 	phylink_enable_and_run_resolve(pl, PHYLINK_DISABLE_LINK);
 }
 
-/* The Broadcom BCM84881 in the Methode DM7052 is unable to provide a SGMII
- * or 802.3z control word, so inband will not work.
- */
-static bool phylink_phy_no_inband(struct phy_device *phy)
-{
-	return phy->is_c45 && phy_id_compare(phy->c45_ids.device_ids[1],
-					     0xae025150, 0xfffffff0);
-}
-
 static int phylink_sfp_connect_phy(void *upstream, struct phy_device *phy)
 {
 	struct phylink *pl = upstream;
-	u8 mode;
 
 	/*
 	 * This is the new way of dealing with flow control for PHYs,
@@ -3651,17 +3641,12 @@ static int phylink_sfp_connect_phy(void *upstream, struct phy_device *phy)
 	 */
 	phy_support_asym_pause(phy);
 
-	if (phylink_phy_no_inband(phy))
-		mode = MLO_AN_PHY;
-	else
-		mode = MLO_AN_INBAND;
-
 	/* Set the PHY's host supported interfaces */
 	phy_interface_and(phy->host_interfaces, phylink_sfp_interfaces,
 			  pl->config->supported_interfaces);
 
 	/* Do the initial configuration */
-	return phylink_sfp_config_phy(pl, mode, phy);
+	return phylink_sfp_config_phy(pl, phy);
 }
 
 static void phylink_sfp_disconnect_phy(void *upstream,
-- 
2.30.2