openwrt/target/linux/generic/backport-5.15/703-19-v5.17-net-mvneta-use-phylink_generic_validate.patch

From 02a0988b98930491db95966fb8086072e47dabb6 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Mon, 15 Nov 2021 10:00:32 +0000
Subject: [PATCH] net: mvneta: use phylink_generic_validate()

Convert mvneta to use phylink_generic_validate() for the bulk of its
validate() implementation. This network adapter has a restriction
that for 802.3z links, autonegotiation must be enabled.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/marvell/mvneta.c | 34 ++++-----------------------
 1 file changed, 4 insertions(+), 30 deletions(-)

--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -3824,8 +3824,6 @@ static void mvneta_validate(struct phyli
 			    unsigned long *supported,
 			    struct phylink_link_state *state)
 {
-	__ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
-
 	/* We only support QSGMII, SGMII, 802.3z and RGMII modes.
 	 * When in 802.3z mode, we must have AN enabled:
 	 * "Bit 2 Field InBandAnEn In-band Auto-Negotiation enable. ...
@@ -3837,34 +3835,7 @@ static void mvneta_validate(struct phyli
 		return;
 	}
 
-	/* Allow all the expected bits */
-	phylink_set(mask, Autoneg);
-	phylink_set_port_modes(mask);
-
-	/* Asymmetric pause is unsupported */
-	phylink_set(mask, Pause);
-
-	/* Half-duplex at speeds higher than 100Mbit is unsupported */
-	if (state->interface != PHY_INTERFACE_MODE_2500BASEX) {
-		phylink_set(mask, 1000baseT_Full);
-		phylink_set(mask, 1000baseX_Full);
-	}
-
-	if (state->interface == PHY_INTERFACE_MODE_2500BASEX) {
-		phylink_set(mask, 2500baseT_Full);
-		phylink_set(mask, 2500baseX_Full);
-	}
-
-	if (!phy_interface_mode_is_8023z(state->interface)) {
-		/* 10M and 100M are only supported in non-802.3z mode */
-		phylink_set(mask, 10baseT_Half);
-		phylink_set(mask, 10baseT_Full);
-		phylink_set(mask, 100baseT_Half);
-		phylink_set(mask, 100baseT_Full);
-	}
-
-	linkmode_and(supported, supported, mask);
-	linkmode_and(state->advertising, state->advertising, mask);
+	phylink_generic_validate(config, supported, state);
 }
 
 static void mvneta_mac_pcs_get_state(struct phylink_config *config,
@@ -5167,6 +5138,9 @@ static int mvneta_probe(struct platform_
 
 	pp->phylink_config.dev = &dev->dev;
 	pp->phylink_config.type = PHYLINK_NETDEV;
+	pp->phylink_config.mac_capabilities = MAC_SYM_PAUSE | MAC_10 |
+		MAC_100 | MAC_1000FD | MAC_2500FD;
+
 	phy_interface_set_rgmii(pp->phylink_config.supported_interfaces);
 	__set_bit(PHY_INTERFACE_MODE_QSGMII,
 		  pp->phylink_config.supported_interfaces);