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From bde018222c6b084ac32933a9f933581dd83da18e Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Thu, 17 Feb 2022 18:30:35 +0000
Subject: [PATCH] net: dsa: add support for phylink mac_select_pcs()
Add DSA support for the phylink mac_select_pcs() method so DSA drivers
can return provide phylink with the appropriate PCS for the PHY
interface mode.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/net/dsa.h | 3 +++
net/dsa/port.c | 15 +++++++++++++++
2 files changed, 18 insertions(+)
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -659,6 +659,9 @@ struct dsa_switch_ops {
void (*phylink_validate)(struct dsa_switch *ds, int port,
unsigned long *supported,
struct phylink_link_state *state);
+ struct phylink_pcs *(*phylink_mac_select_pcs)(struct dsa_switch *ds,
+ int port,
+ phy_interface_t iface);
int (*phylink_mac_link_state)(struct dsa_switch *ds, int port,
struct phylink_link_state *state);
void (*phylink_mac_config)(struct dsa_switch *ds, int port,
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -1028,6 +1028,20 @@ static void dsa_port_phylink_mac_pcs_get
}
}
+static struct phylink_pcs *
+dsa_port_phylink_mac_select_pcs(struct phylink_config *config,
+ phy_interface_t interface)
+{
+ struct dsa_port *dp = container_of(config, struct dsa_port, pl_config);
+ struct dsa_switch *ds = dp->ds;
+ struct phylink_pcs *pcs = NULL;
+
+ if (ds->ops->phylink_mac_select_pcs)
+ pcs = ds->ops->phylink_mac_select_pcs(ds, dp->index, interface);
+
+ return pcs;
+}
+
static void dsa_port_phylink_mac_config(struct phylink_config *config,
unsigned int mode,
const struct phylink_link_state *state)
@@ -1094,6 +1108,7 @@ static void dsa_port_phylink_mac_link_up
static const struct phylink_mac_ops dsa_port_phylink_mac_ops = {
.validate = dsa_port_phylink_validate,
+ .mac_select_pcs = dsa_port_phylink_mac_select_pcs,
.mac_pcs_get_state = dsa_port_phylink_mac_pcs_get_state,
.mac_config = dsa_port_phylink_mac_config,
.mac_an_restart = dsa_port_phylink_mac_an_restart,
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