1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Marvell 88E6xxx Ethernet switch single-chip definition
5 * Copyright (c) 2008 Marvell Semiconductor
8 #ifndef _MV88E6XXX_CHIP_H
9 #define _MV88E6XXX_CHIP_H
11 #include <linux/idr.h>
12 #include <linux/if_vlan.h>
13 #include <linux/irq.h>
14 #include <linux/gpio/consumer.h>
15 #include <linux/kthread.h>
16 #include <linux/phy.h>
17 #include <linux/ptp_clock_kernel.h>
18 #include <linux/timecounter.h>
21 #define MV88E6XXX_N_FID 4096
23 /* PVT limits for 4-bit port and 5-bit switch */
24 #define MV88E6XXX_MAX_PVT_SWITCHES 32
25 #define MV88E6XXX_MAX_PVT_PORTS 16
27 #define MV88E6XXX_MAX_GPIO 16
29 enum mv88e6xxx_egress_mode {
30 MV88E6XXX_EGRESS_MODE_UNMODIFIED,
31 MV88E6XXX_EGRESS_MODE_UNTAGGED,
32 MV88E6XXX_EGRESS_MODE_TAGGED,
33 MV88E6XXX_EGRESS_MODE_ETHERTYPE,
36 enum mv88e6xxx_egress_direction {
37 MV88E6XXX_EGRESS_DIR_INGRESS,
38 MV88E6XXX_EGRESS_DIR_EGRESS,
41 enum mv88e6xxx_frame_mode {
42 MV88E6XXX_FRAME_MODE_NORMAL,
43 MV88E6XXX_FRAME_MODE_DSA,
44 MV88E6XXX_FRAME_MODE_PROVIDER,
45 MV88E6XXX_FRAME_MODE_ETHERTYPE,
48 /* List of supported models */
49 enum mv88e6xxx_model {
80 enum mv88e6xxx_family {
81 MV88E6XXX_FAMILY_NONE,
82 MV88E6XXX_FAMILY_6065, /* 6031 6035 6061 6065 */
83 MV88E6XXX_FAMILY_6095, /* 6092 6095 */
84 MV88E6XXX_FAMILY_6097, /* 6046 6085 6096 6097 */
85 MV88E6XXX_FAMILY_6165, /* 6123 6161 6165 */
86 MV88E6XXX_FAMILY_6185, /* 6108 6121 6122 6131 6152 6155 6182 6185 */
87 MV88E6XXX_FAMILY_6250, /* 6220 6250 */
88 MV88E6XXX_FAMILY_6320, /* 6320 6321 */
89 MV88E6XXX_FAMILY_6341, /* 6141 6341 */
90 MV88E6XXX_FAMILY_6351, /* 6171 6175 6350 6351 */
91 MV88E6XXX_FAMILY_6352, /* 6172 6176 6240 6352 */
92 MV88E6XXX_FAMILY_6390, /* 6190 6190X 6191 6290 6390 6390X */
97 struct mv88e6xxx_info {
98 enum mv88e6xxx_family family;
101 unsigned int num_databases;
102 unsigned int num_macs;
103 unsigned int num_ports;
104 unsigned int num_internal_phys;
105 unsigned int num_gpio;
106 unsigned int max_vid;
107 unsigned int port_base_addr;
108 unsigned int phy_base_addr;
109 unsigned int global1_addr;
110 unsigned int global2_addr;
111 unsigned int age_time_coeff;
112 unsigned int g1_irqs;
113 unsigned int g2_irqs;
116 /* Mark certain ports as invalid. This is required for example for the
117 * MV88E6220 (which is in general a MV88E6250 with 7 ports) but the
118 * ports 2-4 are not routet to pins.
120 unsigned int invalid_port_mask;
121 /* Multi-chip Addressing Mode.
122 * Some chips respond to only 2 registers of its own SMI device address
123 * when it is non-zero, and use indirect access to internal registers.
126 /* Dual-chip Addressing Mode
127 * Some chips respond to only half of the 32 SMI addresses,
128 * allowing two to coexist on the same SMI interface.
132 enum dsa_tag_protocol tag_protocol;
134 /* Mask for FromPort and ToPort value of PortVec used in ATU Move
135 * operation. 0 means that the ATU Move operation is not supported.
137 u8 atu_move_port_mask;
138 const struct mv88e6xxx_ops *ops;
144 struct mv88e6xxx_atu_entry {
151 struct mv88e6xxx_vtu_entry {
156 u8 member[DSA_MAX_PORTS];
157 u8 state[DSA_MAX_PORTS];
160 struct mv88e6xxx_bus_ops;
161 struct mv88e6xxx_irq_ops;
162 struct mv88e6xxx_gpio_ops;
163 struct mv88e6xxx_avb_ops;
164 struct mv88e6xxx_ptp_ops;
166 struct mv88e6xxx_irq {
168 struct irq_chip chip;
169 struct irq_domain *domain;
173 /* state flags for mv88e6xxx_port_hwtstamp::state */
175 MV88E6XXX_HWTSTAMP_ENABLED,
176 MV88E6XXX_HWTSTAMP_TX_IN_PROGRESS,
179 struct mv88e6xxx_port_hwtstamp {
183 /* Timestamping state */
186 /* Resources for receive timestamping */
187 struct sk_buff_head rx_queue;
188 struct sk_buff_head rx_queue2;
190 /* Resources for transmit timestamping */
191 unsigned long tx_tstamp_start;
192 struct sk_buff *tx_skb;
195 /* Current timestamp configuration */
196 struct hwtstamp_config tstamp_config;
199 enum mv88e6xxx_policy_mapping {
200 MV88E6XXX_POLICY_MAPPING_DA,
201 MV88E6XXX_POLICY_MAPPING_SA,
202 MV88E6XXX_POLICY_MAPPING_VTU,
203 MV88E6XXX_POLICY_MAPPING_ETYPE,
204 MV88E6XXX_POLICY_MAPPING_PPPOE,
205 MV88E6XXX_POLICY_MAPPING_VBAS,
206 MV88E6XXX_POLICY_MAPPING_OPT82,
207 MV88E6XXX_POLICY_MAPPING_UDP,
210 enum mv88e6xxx_policy_action {
211 MV88E6XXX_POLICY_ACTION_NORMAL,
212 MV88E6XXX_POLICY_ACTION_MIRROR,
213 MV88E6XXX_POLICY_ACTION_TRAP,
214 MV88E6XXX_POLICY_ACTION_DISCARD,
217 struct mv88e6xxx_policy {
218 enum mv88e6xxx_policy_mapping mapping;
219 enum mv88e6xxx_policy_action action;
220 struct ethtool_rx_flow_spec fs;
226 struct mv88e6xxx_port {
227 struct mv88e6xxx_chip *chip;
230 u64 atu_member_violation;
231 u64 atu_miss_violation;
232 u64 atu_full_violation;
233 u64 vtu_member_violation;
234 u64 vtu_miss_violation;
238 unsigned int serdes_irq;
239 char serdes_irq_name[64];
242 struct mv88e6xxx_chip {
243 const struct mv88e6xxx_info *info;
245 /* The dsa_switch this private structure is related to */
246 struct dsa_switch *ds;
248 /* The device this structure is associated to */
251 /* This mutex protects the access to the switch registers */
252 struct mutex reg_lock;
254 /* The MII bus and the address on the bus that is used to
255 * communication with the switch
257 const struct mv88e6xxx_bus_ops *smi_ops;
261 /* Handles automatic disabling and re-enabling of the PHY
264 const struct mv88e6xxx_bus_ops *phy_ops;
265 struct mutex ppu_mutex;
267 struct work_struct ppu_work;
268 struct timer_list ppu_timer;
270 /* This mutex serialises access to the statistics unit.
271 * Hold this mutex over snapshot + dump sequences.
273 struct mutex stats_mutex;
275 /* A switch may have a GPIO line tied to its reset pin. Parse
276 * this from the device tree, and use it before performing
279 struct gpio_desc *reset;
281 /* set to size of eeprom if supported by the switch */
284 /* List of mdio busses */
285 struct list_head mdios;
287 /* Policy Control List IDs and rules */
290 /* There can be two interrupt controllers, which are chained
291 * off a GPIO as interrupt source
293 struct mv88e6xxx_irq g1_irq;
294 struct mv88e6xxx_irq g2_irq;
298 char device_irq_name[64];
300 char watchdog_irq_name[64];
303 char atu_prob_irq_name[64];
305 char vtu_prob_irq_name[64];
306 struct kthread_worker *kworker;
307 struct kthread_delayed_work irq_poll_work;
312 /* This cyclecounter abstracts the switch PTP time.
313 * reg_lock must be held for any operation that read()s.
315 struct cyclecounter tstamp_cc;
316 struct timecounter tstamp_tc;
317 struct delayed_work overflow_work;
319 struct ptp_clock *ptp_clock;
320 struct ptp_clock_info ptp_clock_info;
321 struct delayed_work tai_event_work;
322 struct ptp_pin_desc pin_config[MV88E6XXX_MAX_GPIO];
327 /* Current ingress and egress monitor ports */
328 int egress_dest_port;
329 int ingress_dest_port;
331 /* Per-port timestamping resources. */
332 struct mv88e6xxx_port_hwtstamp port_hwtstamp[DSA_MAX_PORTS];
334 /* Array of port structures. */
335 struct mv88e6xxx_port ports[DSA_MAX_PORTS];
338 struct mv88e6xxx_bus_ops {
339 int (*read)(struct mv88e6xxx_chip *chip, int addr, int reg, u16 *val);
340 int (*write)(struct mv88e6xxx_chip *chip, int addr, int reg, u16 val);
343 struct mv88e6xxx_mdio_bus {
345 struct mv88e6xxx_chip *chip;
346 struct list_head list;
350 struct mv88e6xxx_ops {
351 /* Switch Setup Errata, called early in the switch setup to
352 * allow any errata actions to be performed
354 int (*setup_errata)(struct mv88e6xxx_chip *chip);
356 int (*ieee_pri_map)(struct mv88e6xxx_chip *chip);
357 int (*ip_pri_map)(struct mv88e6xxx_chip *chip);
359 /* Ingress Rate Limit unit (IRL) operations */
360 int (*irl_init_all)(struct mv88e6xxx_chip *chip, int port);
362 int (*get_eeprom)(struct mv88e6xxx_chip *chip,
363 struct ethtool_eeprom *eeprom, u8 *data);
364 int (*set_eeprom)(struct mv88e6xxx_chip *chip,
365 struct ethtool_eeprom *eeprom, u8 *data);
367 int (*set_switch_mac)(struct mv88e6xxx_chip *chip, u8 *addr);
369 int (*phy_read)(struct mv88e6xxx_chip *chip,
371 int addr, int reg, u16 *val);
372 int (*phy_write)(struct mv88e6xxx_chip *chip,
374 int addr, int reg, u16 val);
376 /* Priority Override Table operations */
377 int (*pot_clear)(struct mv88e6xxx_chip *chip);
379 /* PHY Polling Unit (PPU) operations */
380 int (*ppu_enable)(struct mv88e6xxx_chip *chip);
381 int (*ppu_disable)(struct mv88e6xxx_chip *chip);
383 /* Switch Software Reset */
384 int (*reset)(struct mv88e6xxx_chip *chip);
386 /* RGMII Receive/Transmit Timing Control
387 * Add delay on PHY_INTERFACE_MODE_RGMII_*ID, no delay otherwise.
389 int (*port_set_rgmii_delay)(struct mv88e6xxx_chip *chip, int port,
390 phy_interface_t mode);
392 #define LINK_FORCED_DOWN 0
393 #define LINK_FORCED_UP 1
394 #define LINK_UNFORCED -2
396 /* Port's MAC link state
397 * Use LINK_FORCED_UP or LINK_FORCED_DOWN to force link up or down,
398 * or LINK_UNFORCED for normal link detection.
400 int (*port_set_link)(struct mv88e6xxx_chip *chip, int port, int link);
405 /* Enable/disable sending Pause */
406 int (*port_set_pause)(struct mv88e6xxx_chip *chip, int port,
409 #define SPEED_MAX INT_MAX
410 #define SPEED_UNFORCED -2
411 #define DUPLEX_UNFORCED -2
413 /* Port's MAC speed (in Mbps) and MAC duplex mode
415 * Depending on the chip, 10, 100, 200, 1000, 2500, 10000 are valid.
416 * Use SPEED_UNFORCED for normal detection, SPEED_MAX for max value.
418 * Use DUPLEX_HALF or DUPLEX_FULL to force half or full duplex,
419 * or DUPLEX_UNFORCED for normal duplex detection.
421 int (*port_set_speed_duplex)(struct mv88e6xxx_chip *chip, int port,
422 int speed, int duplex);
424 /* What interface mode should be used for maximum speed? */
425 phy_interface_t (*port_max_speed_mode)(int port);
427 int (*port_tag_remap)(struct mv88e6xxx_chip *chip, int port);
429 int (*port_set_policy)(struct mv88e6xxx_chip *chip, int port,
430 enum mv88e6xxx_policy_mapping mapping,
431 enum mv88e6xxx_policy_action action);
433 int (*port_set_frame_mode)(struct mv88e6xxx_chip *chip, int port,
434 enum mv88e6xxx_frame_mode mode);
435 int (*port_set_egress_floods)(struct mv88e6xxx_chip *chip, int port,
436 bool unicast, bool multicast);
437 int (*port_set_ether_type)(struct mv88e6xxx_chip *chip, int port,
439 int (*port_set_jumbo_size)(struct mv88e6xxx_chip *chip, int port,
442 int (*port_egress_rate_limiting)(struct mv88e6xxx_chip *chip, int port);
443 int (*port_pause_limit)(struct mv88e6xxx_chip *chip, int port, u8 in,
445 int (*port_disable_learn_limit)(struct mv88e6xxx_chip *chip, int port);
446 int (*port_disable_pri_override)(struct mv88e6xxx_chip *chip, int port);
447 int (*port_setup_message_port)(struct mv88e6xxx_chip *chip, int port);
449 /* CMODE control what PHY mode the MAC will use, eg. SGMII, RGMII, etc.
450 * Some chips allow this to be configured on specific ports.
452 int (*port_set_cmode)(struct mv88e6xxx_chip *chip, int port,
453 phy_interface_t mode);
454 int (*port_get_cmode)(struct mv88e6xxx_chip *chip, int port, u8 *cmode);
456 /* Some devices have a per port register indicating what is
457 * the upstream port this port should forward to.
459 int (*port_set_upstream_port)(struct mv88e6xxx_chip *chip, int port,
462 /* Snapshot the statistics for a port. The statistics can then
463 * be read back a leisure but still with a consistent view.
465 int (*stats_snapshot)(struct mv88e6xxx_chip *chip, int port);
467 /* Set the histogram mode for statistics, when the control registers
468 * are separated out of the STATS_OP register.
470 int (*stats_set_histogram)(struct mv88e6xxx_chip *chip);
472 /* Return the number of strings describing statistics */
473 int (*stats_get_sset_count)(struct mv88e6xxx_chip *chip);
474 int (*stats_get_strings)(struct mv88e6xxx_chip *chip, uint8_t *data);
475 int (*stats_get_stats)(struct mv88e6xxx_chip *chip, int port,
477 int (*set_cpu_port)(struct mv88e6xxx_chip *chip, int port);
478 int (*set_egress_port)(struct mv88e6xxx_chip *chip,
479 enum mv88e6xxx_egress_direction direction,
482 #define MV88E6XXX_CASCADE_PORT_NONE 0xe
483 #define MV88E6XXX_CASCADE_PORT_MULTIPLE 0xf
485 int (*set_cascade_port)(struct mv88e6xxx_chip *chip, int port);
487 const struct mv88e6xxx_irq_ops *watchdog_ops;
489 int (*mgmt_rsvd2cpu)(struct mv88e6xxx_chip *chip);
491 /* Power on/off a SERDES interface */
492 int (*serdes_power)(struct mv88e6xxx_chip *chip, int port, u8 lane,
495 /* SERDES lane mapping */
496 u8 (*serdes_get_lane)(struct mv88e6xxx_chip *chip, int port);
498 int (*serdes_pcs_get_state)(struct mv88e6xxx_chip *chip, int port,
499 u8 lane, struct phylink_link_state *state);
500 int (*serdes_pcs_config)(struct mv88e6xxx_chip *chip, int port,
501 u8 lane, unsigned int mode,
502 phy_interface_t interface,
503 const unsigned long *advertise);
504 int (*serdes_pcs_an_restart)(struct mv88e6xxx_chip *chip, int port,
506 int (*serdes_pcs_link_up)(struct mv88e6xxx_chip *chip, int port,
507 u8 lane, int speed, int duplex);
509 /* SERDES interrupt handling */
510 unsigned int (*serdes_irq_mapping)(struct mv88e6xxx_chip *chip,
512 int (*serdes_irq_enable)(struct mv88e6xxx_chip *chip, int port, u8 lane,
514 irqreturn_t (*serdes_irq_status)(struct mv88e6xxx_chip *chip, int port,
517 /* Statistics from the SERDES interface */
518 int (*serdes_get_sset_count)(struct mv88e6xxx_chip *chip, int port);
519 int (*serdes_get_strings)(struct mv88e6xxx_chip *chip, int port,
521 int (*serdes_get_stats)(struct mv88e6xxx_chip *chip, int port,
524 /* SERDES registers for ethtool */
525 int (*serdes_get_regs_len)(struct mv88e6xxx_chip *chip, int port);
526 void (*serdes_get_regs)(struct mv88e6xxx_chip *chip, int port,
529 /* Address Translation Unit operations */
530 int (*atu_get_hash)(struct mv88e6xxx_chip *chip, u8 *hash);
531 int (*atu_set_hash)(struct mv88e6xxx_chip *chip, u8 hash);
533 /* VLAN Translation Unit operations */
534 int (*vtu_getnext)(struct mv88e6xxx_chip *chip,
535 struct mv88e6xxx_vtu_entry *entry);
536 int (*vtu_loadpurge)(struct mv88e6xxx_chip *chip,
537 struct mv88e6xxx_vtu_entry *entry);
539 /* GPIO operations */
540 const struct mv88e6xxx_gpio_ops *gpio_ops;
542 /* Interface to the AVB/PTP registers */
543 const struct mv88e6xxx_avb_ops *avb_ops;
545 /* Remote Management Unit operations */
546 int (*rmu_disable)(struct mv88e6xxx_chip *chip);
548 /* Precision Time Protocol operations */
549 const struct mv88e6xxx_ptp_ops *ptp_ops;
552 void (*phylink_validate)(struct mv88e6xxx_chip *chip, int port,
554 struct phylink_link_state *state);
557 struct mv88e6xxx_irq_ops {
558 /* Action to be performed when the interrupt happens */
559 int (*irq_action)(struct mv88e6xxx_chip *chip, int irq);
560 /* Setup the hardware to generate the interrupt */
561 int (*irq_setup)(struct mv88e6xxx_chip *chip);
562 /* Reset the hardware to stop generating the interrupt */
563 void (*irq_free)(struct mv88e6xxx_chip *chip);
566 struct mv88e6xxx_gpio_ops {
567 /* Get/set data on GPIO pin */
568 int (*get_data)(struct mv88e6xxx_chip *chip, unsigned int pin);
569 int (*set_data)(struct mv88e6xxx_chip *chip, unsigned int pin,
572 /* get/set GPIO direction */
573 int (*get_dir)(struct mv88e6xxx_chip *chip, unsigned int pin);
574 int (*set_dir)(struct mv88e6xxx_chip *chip, unsigned int pin,
577 /* get/set GPIO pin control */
578 int (*get_pctl)(struct mv88e6xxx_chip *chip, unsigned int pin,
580 int (*set_pctl)(struct mv88e6xxx_chip *chip, unsigned int pin,
584 struct mv88e6xxx_avb_ops {
585 /* Access port-scoped Precision Time Protocol registers */
586 int (*port_ptp_read)(struct mv88e6xxx_chip *chip, int port, int addr,
588 int (*port_ptp_write)(struct mv88e6xxx_chip *chip, int port, int addr,
591 /* Access global Precision Time Protocol registers */
592 int (*ptp_read)(struct mv88e6xxx_chip *chip, int addr, u16 *data,
594 int (*ptp_write)(struct mv88e6xxx_chip *chip, int addr, u16 data);
596 /* Access global Time Application Interface registers */
597 int (*tai_read)(struct mv88e6xxx_chip *chip, int addr, u16 *data,
599 int (*tai_write)(struct mv88e6xxx_chip *chip, int addr, u16 data);
602 struct mv88e6xxx_ptp_ops {
603 u64 (*clock_read)(const struct cyclecounter *cc);
604 int (*ptp_enable)(struct ptp_clock_info *ptp,
605 struct ptp_clock_request *rq, int on);
606 int (*ptp_verify)(struct ptp_clock_info *ptp, unsigned int pin,
607 enum ptp_pin_function func, unsigned int chan);
608 void (*event_work)(struct work_struct *ugly);
609 int (*port_enable)(struct mv88e6xxx_chip *chip, int port);
610 int (*port_disable)(struct mv88e6xxx_chip *chip, int port);
611 int (*global_enable)(struct mv88e6xxx_chip *chip);
612 int (*global_disable)(struct mv88e6xxx_chip *chip);
624 #define STATS_TYPE_PORT BIT(0)
625 #define STATS_TYPE_BANK0 BIT(1)
626 #define STATS_TYPE_BANK1 BIT(2)
628 struct mv88e6xxx_hw_stat {
629 char string[ETH_GSTRING_LEN];
635 static inline bool mv88e6xxx_has_pvt(struct mv88e6xxx_chip *chip)
637 return chip->info->pvt;
640 static inline unsigned int mv88e6xxx_num_databases(struct mv88e6xxx_chip *chip)
642 return chip->info->num_databases;
645 static inline unsigned int mv88e6xxx_num_macs(struct mv88e6xxx_chip *chip)
647 return chip->info->num_macs;
650 static inline unsigned int mv88e6xxx_num_ports(struct mv88e6xxx_chip *chip)
652 return chip->info->num_ports;
655 static inline u16 mv88e6xxx_port_mask(struct mv88e6xxx_chip *chip)
657 return GENMASK(mv88e6xxx_num_ports(chip) - 1, 0);
660 static inline unsigned int mv88e6xxx_num_gpio(struct mv88e6xxx_chip *chip)
662 return chip->info->num_gpio;
665 static inline bool mv88e6xxx_is_invalid_port(struct mv88e6xxx_chip *chip, int port)
667 return (chip->info->invalid_port_mask & BIT(port)) != 0;
670 int mv88e6xxx_read(struct mv88e6xxx_chip *chip, int addr, int reg, u16 *val);
671 int mv88e6xxx_write(struct mv88e6xxx_chip *chip, int addr, int reg, u16 val);
672 int mv88e6xxx_wait_mask(struct mv88e6xxx_chip *chip, int addr, int reg,
674 int mv88e6xxx_wait_bit(struct mv88e6xxx_chip *chip, int addr, int reg,
676 struct mii_bus *mv88e6xxx_default_mdio_bus(struct mv88e6xxx_chip *chip);
678 static inline void mv88e6xxx_reg_lock(struct mv88e6xxx_chip *chip)
680 mutex_lock(&chip->reg_lock);
683 static inline void mv88e6xxx_reg_unlock(struct mv88e6xxx_chip *chip)
685 mutex_unlock(&chip->reg_lock);
688 #endif /* _MV88E6XXX_CHIP_H */