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Message-ID: <20220617084255.19376-12-arun.ramadoss@microchip.com>
Date: Fri, 17 Jun 2022 14:12:55 +0530
From: Arun Ramadoss <arun.ramadoss@...rochip.com>
To: <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>
CC: Woojung Huh <woojung.huh@...rochip.com>,
<UNGLinuxDriver@...rochip.com>, Andrew Lunn <andrew@...n.ch>,
Vivien Didelot <vivien.didelot@...il.com>,
Florian Fainelli <f.fainelli@...il.com>,
Vladimir Oltean <olteanv@...il.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
"Russell King" <linux@...linux.org.uk>
Subject: [Patch net-next 11/11] net: dsa: microchip: move get_phy_flags & mtu to ksz_common
This patch assigns the get_phy_flags & mtu hook of ksz8795 and ksz9477
in dsa_switch_ops to ksz_common. For get_phy_flags hooks,checks whether
the chip is ksz8863/kss8793 then it returns error for port1.
Signed-off-by: Arun Ramadoss <arun.ramadoss@...rochip.com>
---
drivers/net/dsa/microchip/ksz8795.c | 14 +--------
drivers/net/dsa/microchip/ksz9477.c | 11 +++----
drivers/net/dsa/microchip/ksz_common.c | 40 ++++++++++++++++++++++++++
drivers/net/dsa/microchip/ksz_common.h | 5 ++++
4 files changed, 52 insertions(+), 18 deletions(-)
diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index 2f93b921b45e..23ed05f4efcc 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -898,18 +898,6 @@ static void ksz8_w_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 val)
}
}
-static u32 ksz8_sw_get_phy_flags(struct dsa_switch *ds, int port)
-{
- /* Silicon Errata Sheet (DS80000830A):
- * Port 1 does not work with LinkMD Cable-Testing.
- * Port 1 does not respond to received PAUSE control frames.
- */
- if (!port)
- return MICREL_KSZ8_P1_ERRATA;
-
- return 0;
-}
-
static void ksz8_cfg_port_member(struct ksz_device *dev, int port, u8 member)
{
u8 data;
@@ -1470,7 +1458,7 @@ static void ksz8_get_caps(struct ksz_device *dev, int port,
static const struct dsa_switch_ops ksz8_switch_ops = {
.get_tag_protocol = ksz_get_tag_protocol,
- .get_phy_flags = ksz8_sw_get_phy_flags,
+ .get_phy_flags = ksz_get_phy_flags,
.setup = ksz8_setup,
.phy_read = ksz_phy_read16,
.phy_write = ksz_phy_write16,
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 1213ff643d05..5b4fc16e1692 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -47,9 +47,8 @@ static void ksz9477_port_cfg32(struct ksz_device *dev, int port, int offset,
bits, set ? bits : 0);
}
-static int ksz9477_change_mtu(struct dsa_switch *ds, int port, int mtu)
+static int ksz9477_change_mtu(struct ksz_device *dev, int port, int mtu)
{
- struct ksz_device *dev = ds->priv;
u16 frame_size, max_frame = 0;
int i;
@@ -65,7 +64,7 @@ static int ksz9477_change_mtu(struct dsa_switch *ds, int port, int mtu)
REG_SW_MTU_MASK, max_frame);
}
-static int ksz9477_max_mtu(struct dsa_switch *ds, int port)
+static int ksz9477_max_mtu(struct ksz_device *dev, int port)
{
return KSZ9477_MAX_FRAME_SIZE - VLAN_ETH_HLEN - ETH_FCS_LEN;
}
@@ -1315,8 +1314,8 @@ static const struct dsa_switch_ops ksz9477_switch_ops = {
.port_mirror_add = ksz_port_mirror_add,
.port_mirror_del = ksz_port_mirror_del,
.get_stats64 = ksz_get_stats64,
- .port_change_mtu = ksz9477_change_mtu,
- .port_max_mtu = ksz9477_max_mtu,
+ .port_change_mtu = ksz_change_mtu,
+ .port_max_mtu = ksz_max_mtu,
};
static u32 ksz9477_get_port_addr(int port, int offset)
@@ -1399,6 +1398,8 @@ static const struct ksz_dev_ops ksz9477_dev_ops = {
.fdb_del = ksz9477_fdb_del,
.mdb_add = ksz9477_mdb_add,
.mdb_del = ksz9477_mdb_del,
+ .change_mtu = ksz9477_change_mtu,
+ .max_mtu = ksz9477_max_mtu,
.shutdown = ksz9477_reset_switch,
.init = ksz9477_switch_init,
.exit = ksz9477_switch_exit,
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 5e98e39e4c40..3fc401959f00 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -16,6 +16,7 @@
#include <linux/if_bridge.h>
#include <linux/of_device.h>
#include <linux/of_net.h>
+#include <linux/micrel_phy.h>
#include <net/dsa.h>
#include <net/switchdev.h>
@@ -705,6 +706,23 @@ int ksz_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val)
}
EXPORT_SYMBOL_GPL(ksz_phy_write16);
+u32 ksz_get_phy_flags(struct dsa_switch *ds, int port)
+{
+ struct ksz_device *dev = ds->priv;
+
+ if (dev->chip_id == KSZ8830_CHIP_ID) {
+ /* Silicon Errata Sheet (DS80000830A):
+ * Port 1 does not work with LinkMD Cable-Testing.
+ * Port 1 does not respond to received PAUSE control frames.
+ */
+ if (!port)
+ return MICREL_KSZ8_P1_ERRATA;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ksz_get_phy_flags);
+
void ksz_mac_link_down(struct dsa_switch *ds, int port, unsigned int mode,
phy_interface_t interface)
{
@@ -984,6 +1002,28 @@ void ksz_port_mirror_del(struct dsa_switch *ds, int port,
}
EXPORT_SYMBOL_GPL(ksz_port_mirror_del);
+int ksz_change_mtu(struct dsa_switch *ds, int port, int mtu)
+{
+ struct ksz_device *dev = ds->priv;
+
+ if (!dev->dev_ops->change_mtu)
+ return -EOPNOTSUPP;
+
+ return dev->dev_ops->change_mtu(dev, port, mtu);
+}
+EXPORT_SYMBOL_GPL(ksz_change_mtu);
+
+int ksz_max_mtu(struct dsa_switch *ds, int port)
+{
+ struct ksz_device *dev = ds->priv;
+
+ if (!dev->dev_ops->max_mtu)
+ return -EOPNOTSUPP;
+
+ return dev->dev_ops->max_mtu(dev, port);
+}
+EXPORT_SYMBOL_GPL(ksz_max_mtu);
+
static int ksz_switch_detect(struct ksz_device *dev)
{
u8 id1, id2;
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index e507e951ce2b..ebcfa688ea2c 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -200,6 +200,8 @@ struct ksz_dev_ops {
struct dsa_db db);
void (*get_caps)(struct ksz_device *dev, int port,
struct phylink_config *config);
+ int (*change_mtu)(struct ksz_device *dev, int port, int mtu);
+ int (*max_mtu)(struct ksz_device *dev, int port);
void (*freeze_mib)(struct ksz_device *dev, int port, bool freeze);
void (*port_init_cnt)(struct ksz_device *dev, int port);
int (*shutdown)(struct ksz_device *dev);
@@ -227,6 +229,7 @@ extern const struct ksz_chip_data ksz_switch_chips[];
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);
+u32 ksz_get_phy_flags(struct dsa_switch *ds, int port);
void ksz_mac_link_down(struct dsa_switch *ds, int port, unsigned int mode,
phy_interface_t interface);
int ksz_sset_count(struct dsa_switch *ds, int port, int sset);
@@ -267,6 +270,8 @@ int ksz_port_mirror_add(struct dsa_switch *ds, int port,
bool ingress, struct netlink_ext_ack *extack);
void ksz_port_mirror_del(struct dsa_switch *ds, int port,
struct dsa_mall_mirror_tc_entry *mirror);
+int ksz_change_mtu(struct dsa_switch *ds, int port, int mtu);
+int ksz_max_mtu(struct dsa_switch *ds, int port);
/* Common register access functions */
--
2.36.1
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