1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (c) 2018, Sensor-Technik Wiedemann GmbH
8 #include <linux/ptp_clock_kernel.h>
9 #include <linux/timecounter.h>
10 #include <linux/dsa/sja1105.h>
11 #include <linux/dsa/8021q.h>
13 #include <linux/mutex.h>
14 #include "sja1105_static_config.h"
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.
20 #define SJA1105_AGEING_TIME_MS(ms) ((ms) / 10)
21 #define SJA1105_NUM_L2_POLICERS SJA1110_MAX_L2_POLICING_COUNT
23 /* Calculated assuming 1Gbps, where the clock has 125 MHz (8 ns period)
24 * To avoid floating point operations, we'll multiply the degrees by 10
25 * to get a "phase" and get 1 decimal point precision.
27 #define SJA1105_RGMII_DELAY_PS_TO_PHASE(ps) \
29 #define SJA1105_RGMII_DELAY_PHASE_TO_PS(phase) \
30 ((800 * (phase)) / 360)
31 #define SJA1105_RGMII_DELAY_PHASE_TO_HW(phase) \
33 #define SJA1105_RGMII_DELAY_PS_TO_HW(ps) \
34 SJA1105_RGMII_DELAY_PHASE_TO_HW(SJA1105_RGMII_DELAY_PS_TO_PHASE(ps))
36 /* Valid range in degrees is a value between 73.8 and 101.7
37 * in 0.9 degree increments
39 #define SJA1105_RGMII_DELAY_MIN_PS \
40 SJA1105_RGMII_DELAY_PHASE_TO_PS(738)
41 #define SJA1105_RGMII_DELAY_MAX_PS \
42 SJA1105_RGMII_DELAY_PHASE_TO_PS(1017)
47 } sja1105_spi_rw_mode_t;
49 #include "sja1105_tas.h"
50 #include "sja1105_ptp.h"
52 enum sja1105_stats_area {
57 __MAX_SJA1105_STATS_AREA,
60 /* Keeps the different addresses between E/T and P/Q/R/S */
78 u64 ptpegr_ts[SJA1105_MAX_NUM_PORTS];
79 u64 pad_mii_tx[SJA1105_MAX_NUM_PORTS];
80 u64 pad_mii_rx[SJA1105_MAX_NUM_PORTS];
81 u64 pad_mii_id[SJA1105_MAX_NUM_PORTS];
82 u64 cgu_idiv[SJA1105_MAX_NUM_PORTS];
83 u64 mii_tx_clk[SJA1105_MAX_NUM_PORTS];
84 u64 mii_rx_clk[SJA1105_MAX_NUM_PORTS];
85 u64 mii_ext_tx_clk[SJA1105_MAX_NUM_PORTS];
86 u64 mii_ext_rx_clk[SJA1105_MAX_NUM_PORTS];
87 u64 rgmii_tx_clk[SJA1105_MAX_NUM_PORTS];
88 u64 rmii_ref_clk[SJA1105_MAX_NUM_PORTS];
89 u64 rmii_ext_tx_clk[SJA1105_MAX_NUM_PORTS];
90 u64 stats[__MAX_SJA1105_STATS_AREA][SJA1105_MAX_NUM_PORTS];
93 u64 pcs_base[SJA1105_MAX_NUM_PORTS];
96 struct sja1105_mdio_private {
97 struct sja1105_private *priv;
102 SJA1105_SPEED_10MBPS,
103 SJA1105_SPEED_100MBPS,
104 SJA1105_SPEED_1000MBPS,
105 SJA1105_SPEED_2500MBPS,
109 enum sja1105_internal_phy_t {
115 struct sja1105_info {
117 /* Needed for distinction between P and R, and between Q and S
118 * (since the parts with/without SGMII share the same
119 * switch core and device_id)
122 /* E/T and P/Q/R/S have partial timestamps of different sizes.
123 * They must be reconstructed on both families anyway to get the full
124 * 64-bit values back.
127 /* Also SPI commands are of different sizes to retrieve
128 * the egress timestamps.
134 bool multiple_cascade_ports;
135 /* Every {port, TXQ} has its own CBS shaper */
136 bool fixed_cbs_mapping;
137 enum dsa_tag_protocol tag_proto;
138 const struct sja1105_dynamic_table_ops *dyn_ops;
139 const struct sja1105_table_ops *static_ops;
140 const struct sja1105_regs *regs;
141 bool can_limit_mcast_flood;
142 int (*reset_cmd)(struct dsa_switch *ds);
143 int (*setup_rgmii_delay)(const void *ctx, int port);
144 /* Prototypes from include/net/dsa.h */
145 int (*fdb_add_cmd)(struct dsa_switch *ds, int port,
146 const unsigned char *addr, u16 vid);
147 int (*fdb_del_cmd)(struct dsa_switch *ds, int port,
148 const unsigned char *addr, u16 vid);
149 void (*ptp_cmd_packing)(u8 *buf, struct sja1105_ptp_cmd *cmd,
151 bool (*rxtstamp)(struct dsa_switch *ds, int port, struct sk_buff *skb);
152 void (*txtstamp)(struct dsa_switch *ds, int port, struct sk_buff *skb);
153 int (*clocking_setup)(struct sja1105_private *priv);
154 int (*pcs_mdio_read_c45)(struct mii_bus *bus, int phy, int mmd,
156 int (*pcs_mdio_write_c45)(struct mii_bus *bus, int phy, int mmd,
158 int (*disable_microcontroller)(struct sja1105_private *priv);
160 bool supports_mii[SJA1105_MAX_NUM_PORTS];
161 bool supports_rmii[SJA1105_MAX_NUM_PORTS];
162 bool supports_rgmii[SJA1105_MAX_NUM_PORTS];
163 bool supports_sgmii[SJA1105_MAX_NUM_PORTS];
164 bool supports_2500basex[SJA1105_MAX_NUM_PORTS];
165 enum sja1105_internal_phy_t internal_phy[SJA1105_MAX_NUM_PORTS];
166 const u64 port_speed[SJA1105_SPEED_MAX];
169 enum sja1105_key_type {
172 SJA1105_KEY_VLAN_UNAWARE_VL,
173 SJA1105_KEY_VLAN_AWARE_VL,
177 enum sja1105_key_type type;
185 /* SJA1105_KEY_VLAN_UNAWARE_VL */
186 /* SJA1105_KEY_VLAN_AWARE_VL */
195 enum sja1105_rule_type {
196 SJA1105_RULE_BCAST_POLICER,
197 SJA1105_RULE_TC_POLICER,
201 enum sja1105_vl_type {
202 SJA1105_VL_NONCRITICAL,
203 SJA1105_VL_RATE_CONSTRAINED,
204 SJA1105_VL_TIME_TRIGGERED,
207 struct sja1105_rule {
208 struct list_head list;
209 unsigned long cookie;
210 unsigned long port_mask;
211 struct sja1105_key key;
212 enum sja1105_rule_type type;
216 /* SJA1105_RULE_BCAST_POLICER */
221 /* SJA1105_RULE_TC_POLICER */
226 /* SJA1105_RULE_VL */
228 enum sja1105_vl_type type;
229 unsigned long destports;
236 struct action_gate_entry *entries;
237 struct flow_stats stats;
242 struct sja1105_flow_block {
243 struct list_head rules;
244 bool l2_policer_used[SJA1105_NUM_L2_POLICERS];
245 int num_virtual_links;
248 struct sja1105_private {
249 struct sja1105_static_config static_config;
250 int rgmii_rx_delay_ps[SJA1105_MAX_NUM_PORTS];
251 int rgmii_tx_delay_ps[SJA1105_MAX_NUM_PORTS];
252 phy_interface_t phy_mode[SJA1105_MAX_NUM_PORTS];
253 bool fixed_link[SJA1105_MAX_NUM_PORTS];
254 unsigned long ucast_egress_floods;
255 unsigned long bcast_egress_floods;
256 unsigned long hwts_tx_en;
257 unsigned long hwts_rx_en;
258 const struct sja1105_info *info;
260 struct spi_device *spidev;
261 struct dsa_switch *ds;
262 u16 bridge_pvid[SJA1105_MAX_NUM_PORTS];
263 u16 tag_8021q_pvid[SJA1105_MAX_NUM_PORTS];
264 struct sja1105_flow_block flow_block;
265 /* Serializes transmission of management frames so that
266 * the switch doesn't confuse them with one another.
268 struct mutex mgmt_lock;
269 /* Serializes accesses to the FDB */
270 struct mutex fdb_lock;
271 /* PTP two-step TX timestamp ID, and its serialization lock */
272 spinlock_t ts_id_lock;
274 /* Serializes access to the dynamic config interface */
275 struct mutex dynamic_config_lock;
276 struct devlink_region **regions;
277 struct sja1105_cbs_entry *cbs;
278 struct mii_bus *mdio_base_t1;
279 struct mii_bus *mdio_base_tx;
280 struct mii_bus *mdio_pcs;
281 struct phylink_pcs *pcs[SJA1105_MAX_NUM_PORTS];
282 struct sja1105_ptp_data ptp_data;
283 struct sja1105_tas_data tas_data;
286 #include "sja1105_dynamic_config.h"
288 struct sja1105_spi_message {
294 /* From sja1105_main.c */
295 enum sja1105_reset_reason {
296 SJA1105_VLAN_FILTERING = 0,
299 SJA1105_BEST_EFFORT_POLICING,
300 SJA1105_VIRTUAL_LINKS,
303 int sja1105_static_config_reload(struct sja1105_private *priv,
304 enum sja1105_reset_reason reason);
305 int sja1105_vlan_filtering(struct dsa_switch *ds, int port, bool enabled,
306 struct netlink_ext_ack *extack);
307 void sja1105_frame_memory_partitioning(struct sja1105_private *priv);
309 /* From sja1105_mdio.c */
310 int sja1105_mdiobus_register(struct dsa_switch *ds);
311 void sja1105_mdiobus_unregister(struct dsa_switch *ds);
312 int sja1105_pcs_mdio_read_c45(struct mii_bus *bus, int phy, int mmd, int reg);
313 int sja1105_pcs_mdio_write_c45(struct mii_bus *bus, int phy, int mmd, int reg,
315 int sja1110_pcs_mdio_read_c45(struct mii_bus *bus, int phy, int mmd, int reg);
316 int sja1110_pcs_mdio_write_c45(struct mii_bus *bus, int phy, int mmd, int reg,
319 /* From sja1105_devlink.c */
320 int sja1105_devlink_setup(struct dsa_switch *ds);
321 void sja1105_devlink_teardown(struct dsa_switch *ds);
322 int sja1105_devlink_info_get(struct dsa_switch *ds,
323 struct devlink_info_req *req,
324 struct netlink_ext_ack *extack);
326 /* From sja1105_spi.c */
327 int sja1105_xfer_buf(const struct sja1105_private *priv,
328 sja1105_spi_rw_mode_t rw, u64 reg_addr,
329 u8 *buf, size_t len);
330 int sja1105_xfer_u32(const struct sja1105_private *priv,
331 sja1105_spi_rw_mode_t rw, u64 reg_addr, u32 *value,
332 struct ptp_system_timestamp *ptp_sts);
333 int sja1105_xfer_u64(const struct sja1105_private *priv,
334 sja1105_spi_rw_mode_t rw, u64 reg_addr, u64 *value,
335 struct ptp_system_timestamp *ptp_sts);
336 int static_config_buf_prepare_for_upload(struct sja1105_private *priv,
337 void *config_buf, int buf_len);
338 int sja1105_static_config_upload(struct sja1105_private *priv);
339 int sja1105_inhibit_tx(const struct sja1105_private *priv,
340 unsigned long port_bitmap, bool tx_inhibited);
342 extern const struct sja1105_info sja1105e_info;
343 extern const struct sja1105_info sja1105t_info;
344 extern const struct sja1105_info sja1105p_info;
345 extern const struct sja1105_info sja1105q_info;
346 extern const struct sja1105_info sja1105r_info;
347 extern const struct sja1105_info sja1105s_info;
348 extern const struct sja1105_info sja1110a_info;
349 extern const struct sja1105_info sja1110b_info;
350 extern const struct sja1105_info sja1110c_info;
351 extern const struct sja1105_info sja1110d_info;
353 /* From sja1105_clocking.c */
358 } sja1105_mii_role_t;
365 } sja1105_phy_interface_t;
367 int sja1105pqrs_setup_rgmii_delay(const void *ctx, int port);
368 int sja1110_setup_rgmii_delay(const void *ctx, int port);
369 int sja1105_clocking_setup_port(struct sja1105_private *priv, int port);
370 int sja1105_clocking_setup(struct sja1105_private *priv);
371 int sja1110_disable_microcontroller(struct sja1105_private *priv);
373 /* From sja1105_ethtool.c */
374 void sja1105_get_ethtool_stats(struct dsa_switch *ds, int port, u64 *data);
375 void sja1105_get_strings(struct dsa_switch *ds, int port,
376 u32 stringset, u8 *data);
377 int sja1105_get_sset_count(struct dsa_switch *ds, int port, int sset);
379 /* From sja1105_dynamic_config.c */
380 int sja1105_dynamic_config_read(struct sja1105_private *priv,
381 enum sja1105_blk_idx blk_idx,
382 int index, void *entry);
383 int sja1105_dynamic_config_write(struct sja1105_private *priv,
384 enum sja1105_blk_idx blk_idx,
385 int index, void *entry, bool keep);
388 SJA1105_C_TAG = 0, /* Inner VLAN header */
389 SJA1105_S_TAG = 1, /* Outer VLAN header */
392 enum sja1110_vlan_type {
393 SJA1110_VLAN_INVALID = 0,
394 SJA1110_VLAN_C_TAG = 1, /* Single inner VLAN tag */
395 SJA1110_VLAN_S_TAG = 2, /* Single outer VLAN tag */
396 SJA1110_VLAN_D_TAG = 3, /* Double tagged, use outer tag for lookup */
399 enum sja1110_shaper_type {
400 SJA1110_LEAKY_BUCKET_SHAPER = 0,
401 SJA1110_CBS_SHAPER = 1,
404 u8 sja1105et_fdb_hash(struct sja1105_private *priv, const u8 *addr, u16 vid);
405 int sja1105et_fdb_add(struct dsa_switch *ds, int port,
406 const unsigned char *addr, u16 vid);
407 int sja1105et_fdb_del(struct dsa_switch *ds, int port,
408 const unsigned char *addr, u16 vid);
409 int sja1105pqrs_fdb_add(struct dsa_switch *ds, int port,
410 const unsigned char *addr, u16 vid);
411 int sja1105pqrs_fdb_del(struct dsa_switch *ds, int port,
412 const unsigned char *addr, u16 vid);
414 /* From sja1105_flower.c */
415 int sja1105_cls_flower_del(struct dsa_switch *ds, int port,
416 struct flow_cls_offload *cls, bool ingress);
417 int sja1105_cls_flower_add(struct dsa_switch *ds, int port,
418 struct flow_cls_offload *cls, bool ingress);
419 int sja1105_cls_flower_stats(struct dsa_switch *ds, int port,
420 struct flow_cls_offload *cls, bool ingress);
421 void sja1105_flower_setup(struct dsa_switch *ds);
422 void sja1105_flower_teardown(struct dsa_switch *ds);
423 struct sja1105_rule *sja1105_rule_find(struct sja1105_private *priv,
424 unsigned long cookie);