netdev - [PATCH RFC net-next 05/12] net: dsa: bcm_sf2: convert to phylink_generic

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Date:   Wed, 24 Nov 2021 17:52:48 +0000
From:   "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
To:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        George McCollister <george.mccollister@...il.com>,
        Hauke Mehrtens <hauke@...ke-m.de>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Vladimir Oltean <vladimir.oltean@....com>,
        Woojung Huh <woojung.huh@...rochip.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        UNGLinuxDriver@...rochip.com
Subject: [PATCH RFC net-next 05/12] net: dsa: bcm_sf2: convert to
 phylink_generic_validate()

Populate the supported interfaces and MAC capabilities for the bcm_sf2
DSA switch and remove the old validate implementation to allow DSA to
use phylink_generic_validate() for this switch driver.

The exclusion of Gigabit linkmodes for MII and Reverse MII links is
handled within phylink_generic_validate() in phylink, so there is no
need to make them conditional on the interface mode in the driver.

Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
 drivers/net/dsa/bcm_sf2.c | 55 +++++++++------------------------------
 1 file changed, 12 insertions(+), 43 deletions(-)

diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index 13aa43b5cffd..d6ef0fb0d943 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -672,49 +672,18 @@ static u32 bcm_sf2_sw_get_phy_flags(struct dsa_switch *ds, int port)
 		       PHY_BRCM_IDDQ_SUSPEND;
 }
 
-static void bcm_sf2_sw_validate(struct dsa_switch *ds, int port,
-				unsigned long *supported,
-				struct phylink_link_state *state)
+static void bcm_sf2_sw_get_caps(struct dsa_switch *ds, int port,
+				struct phylink_config *config)
 {
-	struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
-	__ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
-
-	if (!phy_interface_mode_is_rgmii(state->interface) &&
-	    state->interface != PHY_INTERFACE_MODE_MII &&
-	    state->interface != PHY_INTERFACE_MODE_REVMII &&
-	    state->interface != PHY_INTERFACE_MODE_GMII &&
-	    state->interface != PHY_INTERFACE_MODE_INTERNAL &&
-	    state->interface != PHY_INTERFACE_MODE_MOCA) {
-		linkmode_zero(supported);
-		if (port != core_readl(priv, CORE_IMP0_PRT_ID))
-			dev_err(ds->dev,
-				"Unsupported interface: %d for port %d\n",
-				state->interface, port);
-		return;
-	}
-
-	/* Allow all the expected bits */
-	phylink_set(mask, Autoneg);
-	phylink_set_port_modes(mask);
-	phylink_set(mask, Pause);
-	phylink_set(mask, Asym_Pause);
-
-	/* With the exclusion of MII and Reverse MII, we support Gigabit,
-	 * including Half duplex
-	 */
-	if (state->interface != PHY_INTERFACE_MODE_MII &&
-	    state->interface != PHY_INTERFACE_MODE_REVMII) {
-		phylink_set(mask, 1000baseT_Full);
-		phylink_set(mask, 1000baseT_Half);
-	}
-
-	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);
+	__set_bit(PHY_INTERFACE_MODE_MII, config->supported_interfaces);
+	__set_bit(PHY_INTERFACE_MODE_REVMII, config->supported_interfaces);
+	__set_bit(PHY_INTERFACE_MODE_GMII, config->supported_interfaces);
+	__set_bit(PHY_INTERFACE_MODE_INTERNAL, config->supported_interfaces);
+	__set_bit(PHY_INTERFACE_MODE_MOCA, config->supported_interfaces);
+	phy_interface_set_rgmii(config->supported_interfaces);
+
+	config->mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE |
+		MAC_10 | MAC_100 | MAC_1000;
 }
 
 static void bcm_sf2_sw_mac_config(struct dsa_switch *ds, int port,
@@ -1181,7 +1150,7 @@ static const struct dsa_switch_ops bcm_sf2_ops = {
 	.get_sset_count		= bcm_sf2_sw_get_sset_count,
 	.get_ethtool_phy_stats	= b53_get_ethtool_phy_stats,
 	.get_phy_flags		= bcm_sf2_sw_get_phy_flags,
-	.phylink_validate	= bcm_sf2_sw_validate,
+	.phylink_get_caps	= bcm_sf2_sw_get_caps,
 	.phylink_mac_config	= bcm_sf2_sw_mac_config,
 	.phylink_mac_link_down	= bcm_sf2_sw_mac_link_down,
 	.phylink_mac_link_up	= bcm_sf2_sw_mac_link_up,
-- 
2.30.2