drivers/net/dsa/sja1105/sja1105.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /* Copyright (c) 2018, Sensor-Technik Wiedemann GmbH
   3  * Copyright (c) 2018-2019, Vladimir Oltean <olteanv@gmail.com>
   4  */
   5 #ifndef _SJA1105_H
   6 #define _SJA1105_H
   7
   8 #include <linux/ptp_clock_kernel.h>
   9 #include <linux/timecounter.h>
  10 #include <linux/dsa/sja1105.h>
  11 #include <linux/dsa/8021q.h>
  12 #include <net/dsa.h>
  13 #include <linux/mutex.h>
  14 #include "sja1105_static_config.h"
  15
  16 #define SJA1105ET_FDB_BIN_SIZE          4
  17 /* The hardware value is in multiples of 10 ms.
  18  * The passed parameter is in multiples of 1 ms.
  19  */
  20 #define SJA1105_AGEING_TIME_MS(ms)      ((ms) / 10)
  21 #define SJA1105_NUM_L2_POLICERS         SJA1110_MAX_L2_POLICING_COUNT
  22
  23 typedef enum {
  24         SPI_READ = 0,
  25         SPI_WRITE = 1,
  26 } sja1105_spi_rw_mode_t;
  27
  28 #include "sja1105_tas.h"
  29 #include "sja1105_ptp.h"
  30
  31 enum sja1105_stats_area {
  32         MAC,
  33         HL1,
  34         HL2,
  35         ETHER,
  36         __MAX_SJA1105_STATS_AREA,
  37 };
  38
  39 /* Keeps the different addresses between E/T and P/Q/R/S */
  40 struct sja1105_regs {
  41         u64 device_id;
  42         u64 prod_id;
  43         u64 status;
  44         u64 port_control;
  45         u64 rgu;
  46         u64 vl_status;
  47         u64 config;
  48         u64 rmii_pll1;
  49         u64 ptppinst;
  50         u64 ptppindur;
  51         u64 ptp_control;
  52         u64 ptpclkval;
  53         u64 ptpclkrate;
  54         u64 ptpclkcorp;
  55         u64 ptpsyncts;
  56         u64 ptpschtm;
  57         u64 ptpegr_ts[SJA1105_MAX_NUM_PORTS];
  58         u64 pad_mii_tx[SJA1105_MAX_NUM_PORTS];
  59         u64 pad_mii_rx[SJA1105_MAX_NUM_PORTS];
  60         u64 pad_mii_id[SJA1105_MAX_NUM_PORTS];
  61         u64 cgu_idiv[SJA1105_MAX_NUM_PORTS];
  62         u64 mii_tx_clk[SJA1105_MAX_NUM_PORTS];
  63         u64 mii_rx_clk[SJA1105_MAX_NUM_PORTS];
  64         u64 mii_ext_tx_clk[SJA1105_MAX_NUM_PORTS];
  65         u64 mii_ext_rx_clk[SJA1105_MAX_NUM_PORTS];
  66         u64 rgmii_tx_clk[SJA1105_MAX_NUM_PORTS];
  67         u64 rmii_ref_clk[SJA1105_MAX_NUM_PORTS];
  68         u64 rmii_ext_tx_clk[SJA1105_MAX_NUM_PORTS];
  69         u64 stats[__MAX_SJA1105_STATS_AREA][SJA1105_MAX_NUM_PORTS];
  70         u64 mdio_100base_tx;
  71         u64 mdio_100base_t1;
  72         u64 pcs_base[SJA1105_MAX_NUM_PORTS];
  73 };
  74
  75 struct sja1105_mdio_private {
  76         struct sja1105_private *priv;
  77 };
  78
  79 enum {
  80         SJA1105_SPEED_AUTO,
  81         SJA1105_SPEED_10MBPS,
  82         SJA1105_SPEED_100MBPS,
  83         SJA1105_SPEED_1000MBPS,
  84         SJA1105_SPEED_2500MBPS,
  85         SJA1105_SPEED_MAX,
  86 };
  87
  88 enum sja1105_internal_phy_t {
  89         SJA1105_NO_PHY          = 0,
  90         SJA1105_PHY_BASE_TX,
  91         SJA1105_PHY_BASE_T1,
  92 };
  93
  94 struct sja1105_info {
  95         u64 device_id;
  96         /* Needed for distinction between P and R, and between Q and S
  97          * (since the parts with/without SGMII share the same
  98          * switch core and device_id)
  99          */
 100         u64 part_no;
 101         /* E/T and P/Q/R/S have partial timestamps of different sizes.
 102          * They must be reconstructed on both families anyway to get the full
 103          * 64-bit values back.
 104          */
 105         int ptp_ts_bits;
 106         /* Also SPI commands are of different sizes to retrieve
 107          * the egress timestamps.
 108          */
 109         int ptpegr_ts_bytes;
 110         int num_cbs_shapers;
 111         int max_frame_mem;
 112         int num_ports;
 113         bool multiple_cascade_ports;
 114         enum dsa_tag_protocol tag_proto;
 115         const struct sja1105_dynamic_table_ops *dyn_ops;
 116         const struct sja1105_table_ops *static_ops;
 117         const struct sja1105_regs *regs;
 118         /* Both E/T and P/Q/R/S have quirks when it comes to popping the S-Tag
 119          * from double-tagged frames. E/T will pop it only when it's equal to
 120          * TPID from the General Parameters Table, while P/Q/R/S will only
 121          * pop it when it's equal to TPID2.
 122          */
 123         u16 qinq_tpid;
 124         bool can_limit_mcast_flood;
 125         int (*reset_cmd)(struct dsa_switch *ds);
 126         int (*setup_rgmii_delay)(const void *ctx, int port);
 127         /* Prototypes from include/net/dsa.h */
 128         int (*fdb_add_cmd)(struct dsa_switch *ds, int port,
 129                            const unsigned char *addr, u16 vid);
 130         int (*fdb_del_cmd)(struct dsa_switch *ds, int port,
 131                            const unsigned char *addr, u16 vid);
 132         void (*ptp_cmd_packing)(u8 *buf, struct sja1105_ptp_cmd *cmd,
 133                                 enum packing_op op);
 134         bool (*rxtstamp)(struct dsa_switch *ds, int port, struct sk_buff *skb);
 135         void (*txtstamp)(struct dsa_switch *ds, int port, struct sk_buff *skb);
 136         int (*clocking_setup)(struct sja1105_private *priv);
 137         int (*pcs_mdio_read)(struct mii_bus *bus, int phy, int reg);
 138         int (*pcs_mdio_write)(struct mii_bus *bus, int phy, int reg, u16 val);
 139         const char *name;
 140         bool supports_mii[SJA1105_MAX_NUM_PORTS];
 141         bool supports_rmii[SJA1105_MAX_NUM_PORTS];
 142         bool supports_rgmii[SJA1105_MAX_NUM_PORTS];
 143         bool supports_sgmii[SJA1105_MAX_NUM_PORTS];
 144         bool supports_2500basex[SJA1105_MAX_NUM_PORTS];
 145         enum sja1105_internal_phy_t internal_phy[SJA1105_MAX_NUM_PORTS];
 146         const u64 port_speed[SJA1105_SPEED_MAX];
 147 };
 148
 149 enum sja1105_key_type {
 150         SJA1105_KEY_BCAST,
 151         SJA1105_KEY_TC,
 152         SJA1105_KEY_VLAN_UNAWARE_VL,
 153         SJA1105_KEY_VLAN_AWARE_VL,
 154 };
 155
 156 struct sja1105_key {
 157         enum sja1105_key_type type;
 158
 159         union {
 160                 /* SJA1105_KEY_TC */
 161                 struct {
 162                         int pcp;
 163                 } tc;
 164
 165                 /* SJA1105_KEY_VLAN_UNAWARE_VL */
 166                 /* SJA1105_KEY_VLAN_AWARE_VL */
 167                 struct {
 168                         u64 dmac;
 169                         u16 vid;
 170                         u16 pcp;
 171                 } vl;
 172         };
 173 };
 174
 175 enum sja1105_rule_type {
 176         SJA1105_RULE_BCAST_POLICER,
 177         SJA1105_RULE_TC_POLICER,
 178         SJA1105_RULE_VL,
 179 };
 180
 181 enum sja1105_vl_type {
 182         SJA1105_VL_NONCRITICAL,
 183         SJA1105_VL_RATE_CONSTRAINED,
 184         SJA1105_VL_TIME_TRIGGERED,
 185 };
 186
 187 struct sja1105_rule {
 188         struct list_head list;
 189         unsigned long cookie;
 190         unsigned long port_mask;
 191         struct sja1105_key key;
 192         enum sja1105_rule_type type;
 193
 194         /* Action */
 195         union {
 196                 /* SJA1105_RULE_BCAST_POLICER */
 197                 struct {
 198                         int sharindx;
 199                 } bcast_pol;
 200
 201                 /* SJA1105_RULE_TC_POLICER */
 202                 struct {
 203                         int sharindx;
 204                 } tc_pol;
 205
 206                 /* SJA1105_RULE_VL */
 207                 struct {
 208                         enum sja1105_vl_type type;
 209                         unsigned long destports;
 210                         int sharindx;
 211                         int maxlen;
 212                         int ipv;
 213                         u64 base_time;
 214                         u64 cycle_time;
 215                         int num_entries;
 216                         struct action_gate_entry *entries;
 217                         struct flow_stats stats;
 218                 } vl;
 219         };
 220 };
 221
 222 struct sja1105_flow_block {
 223         struct list_head rules;
 224         bool l2_policer_used[SJA1105_NUM_L2_POLICERS];
 225         int num_virtual_links;
 226 };
 227
 228 struct sja1105_bridge_vlan {
 229         struct list_head list;
 230         int port;
 231         u16 vid;
 232         bool pvid;
 233         bool untagged;
 234 };
 235
 236 enum sja1105_vlan_state {
 237         SJA1105_VLAN_UNAWARE,
 238         SJA1105_VLAN_BEST_EFFORT,
 239         SJA1105_VLAN_FILTERING_FULL,
 240 };
 241
 242 struct sja1105_private {
 243         struct sja1105_static_config static_config;
 244         bool rgmii_rx_delay[SJA1105_MAX_NUM_PORTS];
 245         bool rgmii_tx_delay[SJA1105_MAX_NUM_PORTS];
 246         phy_interface_t phy_mode[SJA1105_MAX_NUM_PORTS];
 247         bool fixed_link[SJA1105_MAX_NUM_PORTS];
 248         bool best_effort_vlan_filtering;
 249         unsigned long learn_ena;
 250         unsigned long ucast_egress_floods;
 251         unsigned long bcast_egress_floods;
 252         const struct sja1105_info *info;
 253         size_t max_xfer_len;
 254         struct gpio_desc *reset_gpio;
 255         struct spi_device *spidev;
 256         struct dsa_switch *ds;
 257         struct list_head dsa_8021q_vlans;
 258         struct list_head bridge_vlans;
 259         struct sja1105_flow_block flow_block;
 260         struct sja1105_port ports[SJA1105_MAX_NUM_PORTS];
 261         /* Serializes transmission of management frames so that
 262          * the switch doesn't confuse them with one another.
 263          */
 264         struct mutex mgmt_lock;
 265         struct dsa_8021q_context *dsa_8021q_ctx;
 266         enum sja1105_vlan_state vlan_state;
 267         struct devlink_region **regions;
 268         struct sja1105_cbs_entry *cbs;
 269         struct mii_bus *mdio_base_t1;
 270         struct mii_bus *mdio_base_tx;
 271         struct mii_bus *mdio_pcs;
 272         struct dw_xpcs *xpcs[SJA1105_MAX_NUM_PORTS];
 273         struct sja1105_tagger_data tagger_data;
 274         struct sja1105_ptp_data ptp_data;
 275         struct sja1105_tas_data tas_data;
 276 };
 277
 278 #include "sja1105_dynamic_config.h"
 279
 280 struct sja1105_spi_message {
 281         u64 access;
 282         u64 read_count;
 283         u64 address;
 284 };
 285
 286 /* From sja1105_main.c */
 287 enum sja1105_reset_reason {
 288         SJA1105_VLAN_FILTERING = 0,
 289         SJA1105_RX_HWTSTAMPING,
 290         SJA1105_AGEING_TIME,
 291         SJA1105_SCHEDULING,
 292         SJA1105_BEST_EFFORT_POLICING,
 293         SJA1105_VIRTUAL_LINKS,
 294 };
 295
 296 int sja1105_static_config_reload(struct sja1105_private *priv,
 297                                  enum sja1105_reset_reason reason);
 298 int sja1105_vlan_filtering(struct dsa_switch *ds, int port, bool enabled,
 299                            struct netlink_ext_ack *extack);
 300 void sja1105_frame_memory_partitioning(struct sja1105_private *priv);
 301
 302 /* From sja1105_mdio.c */
 303 int sja1105_mdiobus_register(struct dsa_switch *ds);
 304 void sja1105_mdiobus_unregister(struct dsa_switch *ds);
 305 int sja1105_pcs_mdio_read(struct mii_bus *bus, int phy, int reg);
 306 int sja1105_pcs_mdio_write(struct mii_bus *bus, int phy, int reg, u16 val);
 307 int sja1110_pcs_mdio_read(struct mii_bus *bus, int phy, int reg);
 308 int sja1110_pcs_mdio_write(struct mii_bus *bus, int phy, int reg, u16 val);
 309
 310 /* From sja1105_devlink.c */
 311 int sja1105_devlink_setup(struct dsa_switch *ds);
 312 void sja1105_devlink_teardown(struct dsa_switch *ds);
 313 int sja1105_devlink_param_get(struct dsa_switch *ds, u32 id,
 314                               struct devlink_param_gset_ctx *ctx);
 315 int sja1105_devlink_param_set(struct dsa_switch *ds, u32 id,
 316                               struct devlink_param_gset_ctx *ctx);
 317 int sja1105_devlink_info_get(struct dsa_switch *ds,
 318                              struct devlink_info_req *req,
 319                              struct netlink_ext_ack *extack);
 320
 321 /* From sja1105_spi.c */
 322 int sja1105_xfer_buf(const struct sja1105_private *priv,
 323                      sja1105_spi_rw_mode_t rw, u64 reg_addr,
 324                      u8 *buf, size_t len);
 325 int sja1105_xfer_u32(const struct sja1105_private *priv,
 326                      sja1105_spi_rw_mode_t rw, u64 reg_addr, u32 *value,
 327                      struct ptp_system_timestamp *ptp_sts);
 328 int sja1105_xfer_u64(const struct sja1105_private *priv,
 329                      sja1105_spi_rw_mode_t rw, u64 reg_addr, u64 *value,
 330                      struct ptp_system_timestamp *ptp_sts);
 331 int static_config_buf_prepare_for_upload(struct sja1105_private *priv,
 332                                          void *config_buf, int buf_len);
 333 int sja1105_static_config_upload(struct sja1105_private *priv);
 334 int sja1105_inhibit_tx(const struct sja1105_private *priv,
 335                        unsigned long port_bitmap, bool tx_inhibited);
 336
 337 extern const struct sja1105_info sja1105e_info;
 338 extern const struct sja1105_info sja1105t_info;
 339 extern const struct sja1105_info sja1105p_info;
 340 extern const struct sja1105_info sja1105q_info;
 341 extern const struct sja1105_info sja1105r_info;
 342 extern const struct sja1105_info sja1105s_info;
 343 extern const struct sja1105_info sja1110a_info;
 344 extern const struct sja1105_info sja1110b_info;
 345 extern const struct sja1105_info sja1110c_info;
 346 extern const struct sja1105_info sja1110d_info;
 347
 348 /* From sja1105_clocking.c */
 349
 350 typedef enum {
 351         XMII_MAC = 0,
 352         XMII_PHY = 1,
 353 } sja1105_mii_role_t;
 354
 355 typedef enum {
 356         XMII_MODE_MII           = 0,
 357         XMII_MODE_RMII          = 1,
 358         XMII_MODE_RGMII         = 2,
 359         XMII_MODE_SGMII         = 3,
 360 } sja1105_phy_interface_t;
 361
 362 int sja1105pqrs_setup_rgmii_delay(const void *ctx, int port);
 363 int sja1110_setup_rgmii_delay(const void *ctx, int port);
 364 int sja1105_clocking_setup_port(struct sja1105_private *priv, int port);
 365 int sja1105_clocking_setup(struct sja1105_private *priv);
 366 int sja1110_clocking_setup(struct sja1105_private *priv);
 367
 368 /* From sja1105_ethtool.c */
 369 void sja1105_get_ethtool_stats(struct dsa_switch *ds, int port, u64 *data);
 370 void sja1105_get_strings(struct dsa_switch *ds, int port,
 371                          u32 stringset, u8 *data);
 372 int sja1105_get_sset_count(struct dsa_switch *ds, int port, int sset);
 373
 374 /* From sja1105_dynamic_config.c */
 375 int sja1105_dynamic_config_read(struct sja1105_private *priv,
 376                                 enum sja1105_blk_idx blk_idx,
 377                                 int index, void *entry);
 378 int sja1105_dynamic_config_write(struct sja1105_private *priv,
 379                                  enum sja1105_blk_idx blk_idx,
 380                                  int index, void *entry, bool keep);
 381
 382 enum sja1105_iotag {
 383         SJA1105_C_TAG = 0, /* Inner VLAN header */
 384         SJA1105_S_TAG = 1, /* Outer VLAN header */
 385 };
 386
 387 enum sja1110_vlan_type {
 388         SJA1110_VLAN_INVALID = 0,
 389         SJA1110_VLAN_C_TAG = 1, /* Single inner VLAN tag */
 390         SJA1110_VLAN_S_TAG = 2, /* Single outer VLAN tag */
 391         SJA1110_VLAN_D_TAG = 3, /* Double tagged, use outer tag for lookup */
 392 };
 393
 394 enum sja1110_shaper_type {
 395         SJA1110_LEAKY_BUCKET_SHAPER = 0,
 396         SJA1110_CBS_SHAPER = 1,
 397 };
 398
 399 u8 sja1105et_fdb_hash(struct sja1105_private *priv, const u8 *addr, u16 vid);
 400 int sja1105et_fdb_add(struct dsa_switch *ds, int port,
 401                       const unsigned char *addr, u16 vid);
 402 int sja1105et_fdb_del(struct dsa_switch *ds, int port,
 403                       const unsigned char *addr, u16 vid);
 404 int sja1105pqrs_fdb_add(struct dsa_switch *ds, int port,
 405                         const unsigned char *addr, u16 vid);
 406 int sja1105pqrs_fdb_del(struct dsa_switch *ds, int port,
 407                         const unsigned char *addr, u16 vid);
 408
 409 /* From sja1105_flower.c */
 410 int sja1105_cls_flower_del(struct dsa_switch *ds, int port,
 411                            struct flow_cls_offload *cls, bool ingress);
 412 int sja1105_cls_flower_add(struct dsa_switch *ds, int port,
 413                            struct flow_cls_offload *cls, bool ingress);
 414 int sja1105_cls_flower_stats(struct dsa_switch *ds, int port,
 415                              struct flow_cls_offload *cls, bool ingress);
 416 void sja1105_flower_setup(struct dsa_switch *ds);
 417 void sja1105_flower_teardown(struct dsa_switch *ds);
 418 struct sja1105_rule *sja1105_rule_find(struct sja1105_private *priv,
 419                                        unsigned long cookie);
 420
 421 #endif