[PATCH net-next] net: dsa: felix: provide own phylink MAC operations

["Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>]

Convert felix to provide its own phylink MAC operations, thus
avoiding the shim layer in DSA's port.c.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
Back in the thread for the previous posting
https://lore.kernel.org/r/Zh1GvcOTXqb7CpQt@shell.armlinux.org.uk
it was identified that two other sub-drivers also needed an update,
and through that identical code in each was identified. In the
final message of the sub-thread from Vladimir, Vladimir volunteered
to pick this up and I agreed. However, I haven't seen anything yet.
I guess Vladimir's attention is elsewhere, so I've done the minimal
fixup for this driver.

 drivers/net/dsa/ocelot/felix.c           | 54 ++++++++++++++++--------
 drivers/net/dsa/ocelot/felix.h           |  1 +
 drivers/net/dsa/ocelot/felix_vsc9959.c   |  1 +
 drivers/net/dsa/ocelot/ocelot_ext.c      |  1 +
 drivers/net/dsa/ocelot/seville_vsc9953.c |  1 +
 5 files changed, 40 insertions(+), 18 deletions(-)

diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c
index 61e95487732d..3aa66bf9eafc 100644
--- a/drivers/net/dsa/ocelot/felix.c
+++ b/drivers/net/dsa/ocelot/felix.c
@@ -1050,24 +1050,32 @@ static void felix_phylink_get_caps(struct dsa_switch *ds, int port,
 		  config->supported_interfaces);
 }
 
-static void felix_phylink_mac_config(struct dsa_switch *ds, int port,
+static void felix_phylink_mac_config(struct phylink_config *config,
 				     unsigned int mode,
 				     const struct phylink_link_state *state)
 {
-	struct ocelot *ocelot = ds->priv;
-	struct felix *felix = ocelot_to_felix(ocelot);
+	struct dsa_port *dp = dsa_phylink_to_port(config);
+	struct ocelot *ocelot = dp->ds->priv;
+	int port = dp->index;
+	struct felix *felix;
+
+	felix = ocelot_to_felix(ocelot);
 
 	if (felix->info->phylink_mac_config)
 		felix->info->phylink_mac_config(ocelot, port, mode, state);
 }
 
-static struct phylink_pcs *felix_phylink_mac_select_pcs(struct dsa_switch *ds,
-							int port,
-							phy_interface_t iface)
+static struct phylink_pcs *
+felix_phylink_mac_select_pcs(struct phylink_config *config,
+			     phy_interface_t iface)
 {
-	struct ocelot *ocelot = ds->priv;
-	struct felix *felix = ocelot_to_felix(ocelot);
+	struct dsa_port *dp = dsa_phylink_to_port(config);
+	struct ocelot *ocelot = dp->ds->priv;
 	struct phylink_pcs *pcs = NULL;
+	int port = dp->index;
+	struct felix *felix;
+
+	felix = ocelot_to_felix(ocelot);
 
 	if (felix->pcs && felix->pcs[port])
 		pcs = felix->pcs[port];
@@ -1075,11 +1083,13 @@ static struct phylink_pcs *felix_phylink_mac_select_pcs(struct dsa_switch *ds,
 	return pcs;
 }
 
-static void felix_phylink_mac_link_down(struct dsa_switch *ds, int port,
+static void felix_phylink_mac_link_down(struct phylink_config *config,
 					unsigned int link_an_mode,
 					phy_interface_t interface)
 {
-	struct ocelot *ocelot = ds->priv;
+	struct dsa_port *dp = dsa_phylink_to_port(config);
+	struct ocelot *ocelot = dp->ds->priv;
+	int port = dp->index;
 	struct felix *felix;
 
 	felix = ocelot_to_felix(ocelot);
@@ -1088,15 +1098,19 @@ static void felix_phylink_mac_link_down(struct dsa_switch *ds, int port,
 				     felix->info->quirks);
 }
 
-static void felix_phylink_mac_link_up(struct dsa_switch *ds, int port,
+static void felix_phylink_mac_link_up(struct phylink_config *config,
+				      struct phy_device *phydev,
 				      unsigned int link_an_mode,
 				      phy_interface_t interface,
-				      struct phy_device *phydev,
 				      int speed, int duplex,
 				      bool tx_pause, bool rx_pause)
 {
-	struct ocelot *ocelot = ds->priv;
-	struct felix *felix = ocelot_to_felix(ocelot);
+	struct dsa_port *dp = dsa_phylink_to_port(config);
+	struct ocelot *ocelot = dp->ds->priv;
+	int port = dp->index;
+	struct felix *felix;
+
+	felix = ocelot_to_felix(ocelot);
 
 	ocelot_phylink_mac_link_up(ocelot, port, phydev, link_an_mode,
 				   interface, speed, duplex, tx_pause, rx_pause,
@@ -2083,6 +2097,14 @@ static void felix_get_mm_stats(struct dsa_switch *ds, int port,
 	ocelot_port_get_mm_stats(ocelot, port, stats);
 }
 
+const struct phylink_mac_ops felix_phylink_mac_ops = {
+	.mac_select_pcs		= felix_phylink_mac_select_pcs,
+	.mac_config		= felix_phylink_mac_config,
+	.mac_link_down		= felix_phylink_mac_link_down,
+	.mac_link_up		= felix_phylink_mac_link_up,
+};
+EXPORT_SYMBOL_GPL(felix_phylink_mac_ops);
+
 const struct dsa_switch_ops felix_switch_ops = {
 	.get_tag_protocol		= felix_get_tag_protocol,
 	.change_tag_protocol		= felix_change_tag_protocol,
@@ -2104,10 +2126,6 @@ const struct dsa_switch_ops felix_switch_ops = {
 	.get_sset_count			= felix_get_sset_count,
 	.get_ts_info			= felix_get_ts_info,
 	.phylink_get_caps		= felix_phylink_get_caps,
-	.phylink_mac_config		= felix_phylink_mac_config,
-	.phylink_mac_select_pcs		= felix_phylink_mac_select_pcs,
-	.phylink_mac_link_down		= felix_phylink_mac_link_down,
-	.phylink_mac_link_up		= felix_phylink_mac_link_up,
 	.port_enable			= felix_port_enable,
 	.port_fast_age			= felix_port_fast_age,
 	.port_fdb_dump			= felix_fdb_dump,
diff --git a/drivers/net/dsa/ocelot/felix.h b/drivers/net/dsa/ocelot/felix.h
index dbf5872fe367..4d3489aaa659 100644
--- a/drivers/net/dsa/ocelot/felix.h
+++ b/drivers/net/dsa/ocelot/felix.h
@@ -82,6 +82,7 @@ struct felix_tag_proto_ops {
 			      struct netlink_ext_ack *extack);
 };
 
+extern const struct phylink_mac_ops felix_phylink_mac_ops;
 extern const struct dsa_switch_ops felix_switch_ops;
 
 /* DSA glue / front-end for struct ocelot */
diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c
index 85952d841f28..d4799a908abc 100644
--- a/drivers/net/dsa/ocelot/felix_vsc9959.c
+++ b/drivers/net/dsa/ocelot/felix_vsc9959.c
@@ -2717,6 +2717,7 @@ static int felix_pci_probe(struct pci_dev *pdev,
 	ds->num_ports = felix->info->num_ports;
 	ds->num_tx_queues = felix->info->num_tx_queues;
 	ds->ops = &felix_switch_ops;
+	ds->phylink_mac_ops = &felix_phylink_mac_ops;
 	ds->priv = ocelot;
 	felix->ds = ds;
 	felix->tag_proto = DSA_TAG_PROTO_OCELOT;
diff --git a/drivers/net/dsa/ocelot/ocelot_ext.c b/drivers/net/dsa/ocelot/ocelot_ext.c
index 22187d831c4b..a8927dc7aca4 100644
--- a/drivers/net/dsa/ocelot/ocelot_ext.c
+++ b/drivers/net/dsa/ocelot/ocelot_ext.c
@@ -96,6 +96,7 @@ static int ocelot_ext_probe(struct platform_device *pdev)
 	ds->num_tx_queues = felix->info->num_tx_queues;
 
 	ds->ops = &felix_switch_ops;
+	ds->phylink_mac_ops = &felix_phylink_mac_ops;
 	ds->priv = ocelot;
 	felix->ds = ds;
 	felix->tag_proto = DSA_TAG_PROTO_OCELOT;
diff --git a/drivers/net/dsa/ocelot/seville_vsc9953.c b/drivers/net/dsa/ocelot/seville_vsc9953.c
index 049930da0521..5ac8897e232b 100644
--- a/drivers/net/dsa/ocelot/seville_vsc9953.c
+++ b/drivers/net/dsa/ocelot/seville_vsc9953.c
@@ -1009,6 +1009,7 @@ static int seville_probe(struct platform_device *pdev)
 	ds->dev = &pdev->dev;
 	ds->num_ports = felix->info->num_ports;
 	ds->ops = &felix_switch_ops;
+	ds->phylink_mac_ops = &felix_phylink_mac_ops;
 	ds->priv = ocelot;
 	felix->ds = ds;
 	felix->tag_proto = DSA_TAG_PROTO_SEVILLE;
-- 
2.30.2