29d1e85f45
Make MTU configurable on KSZ87xx and KSZ88xx series of switches. Before this patch, pre-configured behavior was different on different switch series, due to opposite meaning of the same bit: - KSZ87xx: Reg 4, Bit 1 - if 1, max frame size is 1532; if 0 - 1514 - KSZ88xx: Reg 4, Bit 1 - if 1, max frame size is 1514; if 0 - 1532 Since the code was telling "... SW_LEGAL_PACKET_DISABLE, true)", I assume, the idea was to set max frame size to 1532. With this patch, by setting MTU size 1500, both switch series will be configured to the 1532 frame limit. This patch was tested on KSZ8873. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Acked-by: Arun Ramadoss <arun.ramadoss@microchip.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
63 lines
2.7 KiB
C
63 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Microchip KSZ8XXX series register access
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*
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* Copyright (C) 2020 Pengutronix, Michael Grzeschik <kernel@pengutronix.de>
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*/
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#ifndef __KSZ8XXX_H
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#define __KSZ8XXX_H
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#include <linux/types.h>
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#include <net/dsa.h>
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#include "ksz_common.h"
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int ksz8_setup(struct dsa_switch *ds);
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u32 ksz8_get_port_addr(int port, int offset);
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void ksz8_cfg_port_member(struct ksz_device *dev, int port, u8 member);
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void ksz8_flush_dyn_mac_table(struct ksz_device *dev, int port);
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void ksz8_port_setup(struct ksz_device *dev, int port, bool cpu_port);
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int ksz8_r_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 *val);
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int ksz8_w_phy(struct ksz_device *dev, u16 phy, u16 reg, u16 val);
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int ksz8_r_dyn_mac_table(struct ksz_device *dev, u16 addr, u8 *mac_addr,
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u8 *fid, u8 *src_port, u8 *timestamp, u16 *entries);
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int ksz8_r_sta_mac_table(struct ksz_device *dev, u16 addr,
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struct alu_struct *alu);
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void ksz8_w_sta_mac_table(struct ksz_device *dev, u16 addr,
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struct alu_struct *alu);
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void ksz8_r_mib_cnt(struct ksz_device *dev, int port, u16 addr, u64 *cnt);
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void ksz8_r_mib_pkt(struct ksz_device *dev, int port, u16 addr,
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u64 *dropped, u64 *cnt);
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void ksz8_freeze_mib(struct ksz_device *dev, int port, bool freeze);
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void ksz8_port_init_cnt(struct ksz_device *dev, int port);
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int ksz8_fdb_dump(struct ksz_device *dev, int port,
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dsa_fdb_dump_cb_t *cb, void *data);
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int ksz8_mdb_add(struct ksz_device *dev, int port,
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const struct switchdev_obj_port_mdb *mdb, struct dsa_db db);
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int ksz8_mdb_del(struct ksz_device *dev, int port,
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const struct switchdev_obj_port_mdb *mdb, struct dsa_db db);
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int ksz8_port_vlan_filtering(struct ksz_device *dev, int port, bool flag,
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struct netlink_ext_ack *extack);
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int ksz8_port_vlan_add(struct ksz_device *dev, int port,
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const struct switchdev_obj_port_vlan *vlan,
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struct netlink_ext_ack *extack);
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int ksz8_port_vlan_del(struct ksz_device *dev, int port,
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const struct switchdev_obj_port_vlan *vlan);
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int ksz8_port_mirror_add(struct ksz_device *dev, int port,
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struct dsa_mall_mirror_tc_entry *mirror,
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bool ingress, struct netlink_ext_ack *extack);
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void ksz8_port_mirror_del(struct ksz_device *dev, int port,
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struct dsa_mall_mirror_tc_entry *mirror);
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int ksz8_get_stp_reg(void);
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void ksz8_get_caps(struct ksz_device *dev, int port,
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struct phylink_config *config);
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void ksz8_config_cpu_port(struct dsa_switch *ds);
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int ksz8_enable_stp_addr(struct ksz_device *dev);
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int ksz8_reset_switch(struct ksz_device *dev);
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int ksz8_switch_detect(struct ksz_device *dev);
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int ksz8_switch_init(struct ksz_device *dev);
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void ksz8_switch_exit(struct ksz_device *dev);
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int ksz8_change_mtu(struct ksz_device *dev, int port, int mtu);
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#endif
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