[v4,net-next,3/5] net: dsa: microchip: get port link status
diff mbox series

Message ID 1550882211-10381-4-git-send-email-Tristram.Ha@microchip.com
State Accepted
Delegated to: David Miller
Headers show
Series
  • net: dsa: microchip: add MIB counters support
Related show

Commit Message

Tristram.Ha@microchip.com Feb. 23, 2019, 12:36 a.m. UTC
From: Tristram Ha <Tristram.Ha@microchip.com>

Get port link status to know whether to read MIB counters when the link
is going down.

Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
---
 drivers/net/dsa/microchip/ksz9477.c    |  1 +
 drivers/net/dsa/microchip/ksz_common.c | 14 ++++++++++++++
 drivers/net/dsa/microchip/ksz_common.h |  2 ++
 3 files changed, 17 insertions(+)

Comments

Florian Fainelli Feb. 23, 2019, 12:48 a.m. UTC | #1
Le 2/22/19 à 4:36 PM, Tristram.Ha@microchip.com a écrit :
> From: Tristram Ha <Tristram.Ha@microchip.com>
> 
> Get port link status to know whether to read MIB counters when the link
> is going down.
> 
> Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com>
> Reviewed-by: Andrew Lunn <andrew@lunn.ch>

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>

Patch
diff mbox series

diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 94cd385..1b8267c 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -1196,6 +1196,7 @@  static int ksz9477_setup(struct dsa_switch *ds)
 	.setup			= ksz9477_setup,
 	.phy_read		= ksz9477_phy_read16,
 	.phy_write		= ksz9477_phy_write16,
+	.adjust_link		= ksz_adjust_link,
 	.port_enable		= ksz_enable_port,
 	.port_disable		= ksz_disable_port,
 	.get_strings		= ksz9477_get_strings,
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index eecfbf3..0589fc7 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -140,6 +140,20 @@  int ksz_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val)
 }
 EXPORT_SYMBOL_GPL(ksz_phy_write16);
 
+void ksz_adjust_link(struct dsa_switch *ds, int port,
+		     struct phy_device *phydev)
+{
+	struct ksz_device *dev = ds->priv;
+	struct ksz_port *p = &dev->ports[port];
+
+	/* Read all MIB counters when the link is going down. */
+	if (!phydev->link) {
+		p->read = true;
+		schedule_work(&dev->mib_read);
+	}
+}
+EXPORT_SYMBOL_GPL(ksz_adjust_link);
+
 int ksz_sset_count(struct dsa_switch *ds, int port, int sset)
 {
 	struct ksz_device *dev = ds->priv;
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index f45a553..eb29bb0 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -14,6 +14,8 @@ 
 
 int ksz_phy_read16(struct dsa_switch *ds, int addr, int reg);
 int ksz_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val);
+void ksz_adjust_link(struct dsa_switch *ds, int port,
+		     struct phy_device *phydev);
 int ksz_sset_count(struct dsa_switch *ds, int port, int sset);
 void ksz_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *buf);
 int ksz_port_bridge_join(struct dsa_switch *ds, int port,