drivers/net/dsa/microchip/ksz_priv.h

   1 /* SPDX-License-Identifier: GPL-2.0
   2  *
   3  * Microchip KSZ series switch common definitions
   4  *
   5  * Copyright (C) 2017-2019 Microchip Technology Inc.
   6  */
   7
   8 #ifndef __KSZ_PRIV_H
   9 #define __KSZ_PRIV_H
  10
  11 #include <linux/kernel.h>
  12 #include <linux/mutex.h>
  13 #include <linux/phy.h>
  14 #include <linux/etherdevice.h>
  15 #include <net/dsa.h>
  16
  17 struct ksz_io_ops;
  18
  19 struct vlan_table {
  20         u32 table[3];
  21 };
  22
  23 struct ksz_port_mib {
  24         struct mutex cnt_mutex;         /* structure access */
  25         u8 cnt_ptr;
  26         u64 *counters;
  27 };
  28
  29 struct ksz_port {
  30         u16 member;
  31         u16 vid_member;
  32         int stp_state;
  33         struct phy_device phydev;
  34
  35         u32 on:1;                       /* port is not disabled by hardware */
  36         u32 phy:1;                      /* port has a PHY */
  37         u32 fiber:1;                    /* port is fiber */
  38         u32 sgmii:1;                    /* port is SGMII */
  39         u32 force:1;
  40         u32 read:1;                     /* read MIB counters in background */
  41         u32 freeze:1;                   /* MIB counter freeze is enabled */
  42
  43         struct ksz_port_mib mib;
  44 };
  45
  46 struct ksz_device {
  47         struct dsa_switch *ds;
  48         struct ksz_platform_data *pdata;
  49         const char *name;
  50
  51         struct mutex dev_mutex;         /* device access */
  52         struct mutex reg_mutex;         /* register access */
  53         struct mutex stats_mutex;       /* status access */
  54         struct mutex alu_mutex;         /* ALU access */
  55         struct mutex vlan_mutex;        /* vlan access */
  56         const struct ksz_io_ops *ops;
  57         const struct ksz_dev_ops *dev_ops;
  58
  59         struct device *dev;
  60
  61         void *priv;
  62
  63         struct gpio_desc *reset_gpio;   /* Optional reset GPIO */
  64
  65         /* chip specific data */
  66         u32 chip_id;
  67         int num_vlans;
  68         int num_alus;
  69         int num_statics;
  70         int cpu_port;                   /* port connected to CPU */
  71         int cpu_ports;                  /* port bitmap can be cpu port */
  72         int phy_port_cnt;
  73         int port_cnt;
  74         int reg_mib_cnt;
  75         int mib_cnt;
  76         int mib_port_cnt;
  77         int last_port;                  /* ports after that not used */
  78         phy_interface_t interface;
  79         u32 regs_size;
  80
  81         struct vlan_table *vlan_cache;
  82
  83         u8 *txbuf;
  84
  85         struct ksz_port *ports;
  86         struct timer_list mib_read_timer;
  87         struct work_struct mib_read;
  88         unsigned long mib_read_interval;
  89         u16 br_member;
  90         u16 member;
  91         u16 live_ports;
  92         u16 on_ports;                   /* ports enabled by DSA */
  93         u16 rx_ports;
  94         u16 tx_ports;
  95         u16 mirror_rx;
  96         u16 mirror_tx;
  97         u32 features;                   /* chip specific features */
  98         u32 overrides;                  /* chip functions set by user */
  99         u16 host_mask;
 100         u16 port_mask;
 101 };
 102
 103 struct ksz_io_ops {
 104         int (*read8)(struct ksz_device *dev, u32 reg, u8 *value);
 105         int (*read16)(struct ksz_device *dev, u32 reg, u16 *value);
 106         int (*read24)(struct ksz_device *dev, u32 reg, u32 *value);
 107         int (*read32)(struct ksz_device *dev, u32 reg, u32 *value);
 108         int (*write8)(struct ksz_device *dev, u32 reg, u8 value);
 109         int (*write16)(struct ksz_device *dev, u32 reg, u16 value);
 110         int (*write24)(struct ksz_device *dev, u32 reg, u32 value);
 111         int (*write32)(struct ksz_device *dev, u32 reg, u32 value);
 112         int (*get)(struct ksz_device *dev, u32 reg, void *data, size_t len);
 113         int (*set)(struct ksz_device *dev, u32 reg, void *data, size_t len);
 114 };
 115
 116 struct alu_struct {
 117         /* entry 1 */
 118         u8      is_static:1;
 119         u8      is_src_filter:1;
 120         u8      is_dst_filter:1;
 121         u8      prio_age:3;
 122         u32     _reserv_0_1:23;
 123         u8      mstp:3;
 124         /* entry 2 */
 125         u8      is_override:1;
 126         u8      is_use_fid:1;
 127         u32     _reserv_1_1:23;
 128         u8      port_forward:7;
 129         /* entry 3 & 4*/
 130         u32     _reserv_2_1:9;
 131         u8      fid:7;
 132         u8      mac[ETH_ALEN];
 133 };
 134
 135 struct ksz_dev_ops {
 136         u32 (*get_port_addr)(int port, int offset);
 137         void (*cfg_port_member)(struct ksz_device *dev, int port, u8 member);
 138         void (*flush_dyn_mac_table)(struct ksz_device *dev, int port);
 139         void (*phy_setup)(struct ksz_device *dev, int port,
 140                           struct phy_device *phy);
 141         void (*port_cleanup)(struct ksz_device *dev, int port);
 142         void (*port_setup)(struct ksz_device *dev, int port, bool cpu_port);
 143         void (*r_phy)(struct ksz_device *dev, u16 phy, u16 reg, u16 *val);
 144         void (*w_phy)(struct ksz_device *dev, u16 phy, u16 reg, u16 val);
 145         int (*r_dyn_mac_table)(struct ksz_device *dev, u16 addr, u8 *mac_addr,
 146                                u8 *fid, u8 *src_port, u8 *timestamp,
 147                                u16 *entries);
 148         int (*r_sta_mac_table)(struct ksz_device *dev, u16 addr,
 149                                struct alu_struct *alu);
 150         void (*w_sta_mac_table)(struct ksz_device *dev, u16 addr,
 151                                 struct alu_struct *alu);
 152         void (*r_mib_cnt)(struct ksz_device *dev, int port, u16 addr,
 153                           u64 *cnt);
 154         void (*r_mib_pkt)(struct ksz_device *dev, int port, u16 addr,
 155                           u64 *dropped, u64 *cnt);
 156         void (*freeze_mib)(struct ksz_device *dev, int port, bool freeze);
 157         void (*port_init_cnt)(struct ksz_device *dev, int port);
 158         int (*shutdown)(struct ksz_device *dev);
 159         int (*detect)(struct ksz_device *dev);
 160         int (*init)(struct ksz_device *dev);
 161         void (*exit)(struct ksz_device *dev);
 162 };
 163
 164 struct ksz_device *ksz_switch_alloc(struct device *base,
 165                                     const struct ksz_io_ops *ops, void *priv);
 166 int ksz_switch_register(struct ksz_device *dev,
 167                         const struct ksz_dev_ops *ops);
 168 void ksz_switch_remove(struct ksz_device *dev);
 169
 170 int ksz9477_switch_register(struct ksz_device *dev);
 171
 172 #endif