[PATCH net-next v6 1/6] net: dsa: microchip: move max mtu to one location
STALE1410d
From: Oleksij Rempel <o.rempel@pengutronix.de>
Date: 2022-11-24 10:16:00
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Subsystem:
microchip ksz series ethernet switch driver, networking drivers, networking [dsa], the rest · Maintainers:
Woojung Huh, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Andrew Lunn, Vladimir Oltean, Linus Torvalds
Revision v6 of 6 in this series.
Revisions (6)
There are no HW specific registers, so we can process all of them in one location. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Tested-by: Arun Ramadoss <arun.ramadoss@microchip.com> (KSZ9893 and LAN937x) --- drivers/net/dsa/microchip/ksz9477.c | 5 ----- drivers/net/dsa/microchip/ksz9477.h | 1 - drivers/net/dsa/microchip/ksz9477_reg.h | 2 -- drivers/net/dsa/microchip/ksz_common.c | 22 +++++++++++++++++----- drivers/net/dsa/microchip/ksz_common.h | 3 ++- 5 files changed, 19 insertions(+), 14 deletions(-)
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 0d6b40968657..602d00671bef 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c@@ -60,11 +60,6 @@ int ksz9477_change_mtu(struct ksz_device *dev, int port, int mtu) REG_SW_MTU_MASK, max_frame); } -int ksz9477_max_mtu(struct ksz_device *dev, int port) -{ - return KSZ9477_MAX_FRAME_SIZE - VLAN_ETH_HLEN - ETH_FCS_LEN; -} - static int ksz9477_wait_vlan_ctrl_ready(struct ksz_device *dev) { unsigned int val;
diff --git a/drivers/net/dsa/microchip/ksz9477.h b/drivers/net/dsa/microchip/ksz9477.h
index 00862c4cfb7f..7c5bb3032772 100644
--- a/drivers/net/dsa/microchip/ksz9477.h
+++ b/drivers/net/dsa/microchip/ksz9477.h@@ -50,7 +50,6 @@ int ksz9477_mdb_add(struct ksz_device *dev, int port, int ksz9477_mdb_del(struct ksz_device *dev, int port, const struct switchdev_obj_port_mdb *mdb, struct dsa_db db); int ksz9477_change_mtu(struct ksz_device *dev, int port, int mtu); -int ksz9477_max_mtu(struct ksz_device *dev, int port); void ksz9477_config_cpu_port(struct dsa_switch *ds); int ksz9477_enable_stp_addr(struct ksz_device *dev); int ksz9477_reset_switch(struct ksz_device *dev);
diff --git a/drivers/net/dsa/microchip/ksz9477_reg.h b/drivers/net/dsa/microchip/ksz9477_reg.h
index 53c68d286dd3..cc457fa64939 100644
--- a/drivers/net/dsa/microchip/ksz9477_reg.h
+++ b/drivers/net/dsa/microchip/ksz9477_reg.h@@ -1615,6 +1615,4 @@ #define PTP_TRIG_UNIT_M (BIT(MAX_TRIG_UNIT) - 1) #define PTP_TS_UNIT_M (BIT(MAX_TIMESTAMP_UNIT) - 1) -#define KSZ9477_MAX_FRAME_SIZE 9000 - #endif /* KSZ9477_REGS_H */
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 8c8db315317d..49a5a236d958 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c@@ -14,6 +14,7 @@ #include <linux/phy.h> #include <linux/etherdevice.h> #include <linux/if_bridge.h> +#include <linux/if_vlan.h> #include <linux/irq.h> #include <linux/irqdomain.h> #include <linux/of_mdio.h>
@@ -206,7 +207,6 @@ static const struct ksz_dev_ops ksz9477_dev_ops = { .mdb_add = ksz9477_mdb_add, .mdb_del = ksz9477_mdb_del, .change_mtu = ksz9477_change_mtu, - .max_mtu = ksz9477_max_mtu, .phylink_mac_link_up = ksz9477_phylink_mac_link_up, .config_cpu_port = ksz9477_config_cpu_port, .enable_stp_addr = ksz9477_enable_stp_addr,
@@ -243,7 +243,6 @@ static const struct ksz_dev_ops lan937x_dev_ops = { .mdb_add = ksz9477_mdb_add, .mdb_del = ksz9477_mdb_del, .change_mtu = lan937x_change_mtu, - .max_mtu = ksz9477_max_mtu, .phylink_mac_link_up = ksz9477_phylink_mac_link_up, .config_cpu_port = lan937x_config_cpu_port, .enable_stp_addr = ksz9477_enable_stp_addr,
@@ -2500,10 +2499,23 @@ static int ksz_max_mtu(struct dsa_switch *ds, int port) { struct ksz_device *dev = ds->priv; - if (!dev->dev_ops->max_mtu) - return -EOPNOTSUPP; + switch (dev->chip_id) { + case KSZ8563_CHIP_ID: + case KSZ9477_CHIP_ID: + case KSZ9563_CHIP_ID: + case KSZ9567_CHIP_ID: + case KSZ9893_CHIP_ID: + case KSZ9896_CHIP_ID: + case KSZ9897_CHIP_ID: + case LAN9370_CHIP_ID: + case LAN9371_CHIP_ID: + case LAN9372_CHIP_ID: + case LAN9373_CHIP_ID: + case LAN9374_CHIP_ID: + return KSZ9477_MAX_FRAME_SIZE - VLAN_ETH_HLEN - ETH_FCS_LEN; + } - return dev->dev_ops->max_mtu(dev, port); + return -EOPNOTSUPP; } static void ksz_set_xmii(struct ksz_device *dev, int port,
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index c6726cbd5465..27c26ee15af4 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h@@ -322,7 +322,6 @@ struct ksz_dev_ops { 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); void (*phylink_mac_config)(struct ksz_device *dev, int port,
@@ -588,6 +587,8 @@ static inline int is_lan937x(struct ksz_device *dev) #define PORT_SRC_PHY_INT 1 +#define KSZ9477_MAX_FRAME_SIZE 9000 + /* Regmap tables generation */ #define KSZ_SPI_OP_RD 3 #define KSZ_SPI_OP_WR 2
--
2.30.2