Linux kernel mirror (for testing)
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linux
1/*
2 * B53 common definitions
3 *
4 * Copyright (C) 2011-2013 Jonas Gorski <jogo@openwrt.org>
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#ifndef __B53_PRIV_H
20#define __B53_PRIV_H
21
22#include <linux/kernel.h>
23#include <linux/mutex.h>
24#include <linux/phylink.h>
25#include <linux/etherdevice.h>
26#include <net/dsa.h>
27
28#include "b53_regs.h"
29
30struct b53_device;
31struct net_device;
32
33struct b53_io_ops {
34 int (*read8)(struct b53_device *dev, u8 page, u8 reg, u8 *value);
35 int (*read16)(struct b53_device *dev, u8 page, u8 reg, u16 *value);
36 int (*read32)(struct b53_device *dev, u8 page, u8 reg, u32 *value);
37 int (*read48)(struct b53_device *dev, u8 page, u8 reg, u64 *value);
38 int (*read64)(struct b53_device *dev, u8 page, u8 reg, u64 *value);
39 int (*write8)(struct b53_device *dev, u8 page, u8 reg, u8 value);
40 int (*write16)(struct b53_device *dev, u8 page, u8 reg, u16 value);
41 int (*write32)(struct b53_device *dev, u8 page, u8 reg, u32 value);
42 int (*write48)(struct b53_device *dev, u8 page, u8 reg, u64 value);
43 int (*write64)(struct b53_device *dev, u8 page, u8 reg, u64 value);
44 int (*phy_read16)(struct b53_device *dev, int addr, int reg, u16 *value);
45 int (*phy_write16)(struct b53_device *dev, int addr, int reg, u16 value);
46 int (*irq_enable)(struct b53_device *dev, int port);
47 void (*irq_disable)(struct b53_device *dev, int port);
48 void (*phy_enable)(struct b53_device *dev, int port);
49 void (*phy_disable)(struct b53_device *dev, int port);
50 void (*phylink_get_caps)(struct b53_device *dev, int port,
51 struct phylink_config *config);
52 struct phylink_pcs *(*phylink_mac_select_pcs)(struct b53_device *dev,
53 int port,
54 phy_interface_t interface);
55 u8 (*serdes_map_lane)(struct b53_device *dev, int port);
56 void (*serdes_link_set)(struct b53_device *dev, int port,
57 unsigned int mode, phy_interface_t interface,
58 bool link_up);
59};
60
61struct b53_arl_entry;
62
63struct b53_arl_ops {
64 void (*arl_read_entry)(struct b53_device *dev,
65 struct b53_arl_entry *ent, u8 idx);
66 void (*arl_write_entry)(struct b53_device *dev,
67 const struct b53_arl_entry *ent, u8 idx);
68 void (*arl_search_read)(struct b53_device *dev, u8 idx,
69 struct b53_arl_entry *ent);
70};
71
72#define B53_INVALID_LANE 0xff
73
74enum {
75 BCM4908_DEVICE_ID = 0x4908,
76 BCM5325_DEVICE_ID = 0x25,
77 BCM5365_DEVICE_ID = 0x65,
78 BCM5389_DEVICE_ID = 0x89,
79 BCM5395_DEVICE_ID = 0x95,
80 BCM5397_DEVICE_ID = 0x97,
81 BCM5398_DEVICE_ID = 0x98,
82 BCM53101_DEVICE_ID = 0x53101,
83 BCM53115_DEVICE_ID = 0x53115,
84 BCM53125_DEVICE_ID = 0x53125,
85 BCM53128_DEVICE_ID = 0x53128,
86 BCM63XX_DEVICE_ID = 0x6300,
87 BCM6318_DEVICE_ID = 0x6318,
88 BCM6328_DEVICE_ID = 0x6328,
89 BCM6362_DEVICE_ID = 0x6362,
90 BCM6368_DEVICE_ID = 0x6368,
91 BCM63268_DEVICE_ID = 0x63268,
92 BCM53010_DEVICE_ID = 0x53010,
93 BCM53011_DEVICE_ID = 0x53011,
94 BCM53012_DEVICE_ID = 0x53012,
95 BCM53018_DEVICE_ID = 0x53018,
96 BCM53019_DEVICE_ID = 0x53019,
97 BCM58XX_DEVICE_ID = 0x5800,
98 BCM583XX_DEVICE_ID = 0x58300,
99 BCM7445_DEVICE_ID = 0x7445,
100 BCM7278_DEVICE_ID = 0x7278,
101 BCM53134_DEVICE_ID = 0x5075,
102};
103
104enum b53_variant_id {
105 B53_VARIANT_NONE = 0,
106 B53_VARIANT_5325E,
107 B53_VARIANT_5325M,
108};
109
110struct b53_pcs {
111 struct phylink_pcs pcs;
112 struct b53_device *dev;
113 u8 lane;
114};
115
116#define B53_N_PORTS 9
117#define B53_N_PORTS_25 6
118#define B53_N_PCS 2
119
120struct b53_port {
121 u16 vlan_ctl_mask;
122 u16 pvid;
123 struct ethtool_keee eee;
124};
125
126struct b53_vlan {
127 u16 members;
128 u16 untag;
129 bool valid;
130};
131
132struct b53_device {
133 struct dsa_switch *ds;
134 struct b53_platform_data *pdata;
135 const char *name;
136
137 struct mutex reg_mutex;
138 struct mutex stats_mutex;
139 struct mutex arl_mutex;
140 const struct b53_io_ops *ops;
141 const struct b53_arl_ops *arl_ops;
142
143 /* chip specific data */
144 u32 chip_id;
145 enum b53_variant_id variant_id;
146 u8 core_rev;
147 u8 vta_regs[3];
148 u8 duplex_reg;
149 u8 jumbo_pm_reg;
150 u8 jumbo_size_reg;
151 int reset_gpio;
152 u8 num_arl_bins;
153 u16 num_arl_buckets;
154 enum dsa_tag_protocol tag_protocol;
155
156 /* used ports mask */
157 u16 enabled_ports;
158 unsigned int imp_port;
159
160 /* connect specific data */
161 u8 current_page;
162 struct device *dev;
163 u8 serdes_lane;
164
165 /* Master MDIO bus we got probed from */
166 struct mii_bus *bus;
167
168 void *priv;
169
170 /* run time configuration */
171 bool enable_jumbo;
172
173 unsigned int num_vlans;
174 struct b53_vlan *vlans;
175 bool vlan_enabled;
176 bool vlan_filtering;
177 unsigned int num_ports;
178 struct b53_port *ports;
179
180 struct b53_pcs pcs[B53_N_PCS];
181};
182
183#define b53_for_each_port(dev, i) \
184 for (i = 0; i < B53_N_PORTS; i++) \
185 if (dev->enabled_ports & BIT(i))
186
187
188static inline int is5325(struct b53_device *dev)
189{
190 return dev->chip_id == BCM5325_DEVICE_ID;
191}
192
193static inline int is5325e(struct b53_device *dev)
194{
195 return is5325(dev) &&
196 dev->variant_id == B53_VARIANT_5325E;
197}
198
199static inline int is5325m(struct b53_device *dev)
200{
201 return is5325(dev) &&
202 dev->variant_id == B53_VARIANT_5325M;
203}
204
205static inline int is5365(struct b53_device *dev)
206{
207#ifdef CONFIG_BCM47XX
208 return dev->chip_id == BCM5365_DEVICE_ID;
209#else
210 return 0;
211#endif
212}
213
214static inline int is5397_98(struct b53_device *dev)
215{
216 return dev->chip_id == BCM5397_DEVICE_ID ||
217 dev->chip_id == BCM5398_DEVICE_ID;
218}
219
220static inline int is539x(struct b53_device *dev)
221{
222 return dev->chip_id == BCM5395_DEVICE_ID ||
223 dev->chip_id == BCM5397_DEVICE_ID ||
224 dev->chip_id == BCM5398_DEVICE_ID;
225}
226
227static inline int is531x5(struct b53_device *dev)
228{
229 return dev->chip_id == BCM53115_DEVICE_ID ||
230 dev->chip_id == BCM53125_DEVICE_ID ||
231 dev->chip_id == BCM53101_DEVICE_ID ||
232 dev->chip_id == BCM53128_DEVICE_ID ||
233 dev->chip_id == BCM53134_DEVICE_ID;
234}
235
236static inline int is63xx(struct b53_device *dev)
237{
238 return dev->chip_id == BCM63XX_DEVICE_ID ||
239 dev->chip_id == BCM6318_DEVICE_ID ||
240 dev->chip_id == BCM6328_DEVICE_ID ||
241 dev->chip_id == BCM6362_DEVICE_ID ||
242 dev->chip_id == BCM6368_DEVICE_ID ||
243 dev->chip_id == BCM63268_DEVICE_ID;
244}
245
246static inline int is6318_268(struct b53_device *dev)
247{
248 return dev->chip_id == BCM6318_DEVICE_ID ||
249 dev->chip_id == BCM63268_DEVICE_ID;
250}
251
252static inline int is5301x(struct b53_device *dev)
253{
254 return dev->chip_id == BCM53010_DEVICE_ID ||
255 dev->chip_id == BCM53011_DEVICE_ID ||
256 dev->chip_id == BCM53012_DEVICE_ID ||
257 dev->chip_id == BCM53018_DEVICE_ID ||
258 dev->chip_id == BCM53019_DEVICE_ID;
259}
260
261static inline int is58xx(struct b53_device *dev)
262{
263 return dev->chip_id == BCM58XX_DEVICE_ID ||
264 dev->chip_id == BCM583XX_DEVICE_ID ||
265 dev->chip_id == BCM7445_DEVICE_ID ||
266 dev->chip_id == BCM7278_DEVICE_ID ||
267 dev->chip_id == BCM53134_DEVICE_ID;
268}
269
270#define B53_63XX_RGMII0 4
271#define B53_CPU_PORT_25 5
272#define B53_CPU_PORT 8
273
274static inline unsigned int b53_max_arl_entries(struct b53_device *dev)
275{
276 return dev->num_arl_buckets * dev->num_arl_bins;
277}
278
279struct b53_device *b53_switch_alloc(struct device *base,
280 const struct b53_io_ops *ops,
281 void *priv);
282
283int b53_switch_detect(struct b53_device *dev);
284
285int b53_switch_register(struct b53_device *dev);
286
287static inline void b53_switch_remove(struct b53_device *dev)
288{
289 dsa_unregister_switch(dev->ds);
290}
291
292static inline void b53_switch_shutdown(struct b53_device *dev)
293{
294 dsa_switch_shutdown(dev->ds);
295}
296
297#define b53_build_op(type_op_size, val_type) \
298static inline int b53_##type_op_size(struct b53_device *dev, u8 page, \
299 u8 reg, val_type val) \
300{ \
301 int ret; \
302 \
303 mutex_lock(&dev->reg_mutex); \
304 ret = dev->ops->type_op_size(dev, page, reg, val); \
305 mutex_unlock(&dev->reg_mutex); \
306 \
307 return ret; \
308}
309
310b53_build_op(read8, u8 *);
311b53_build_op(read16, u16 *);
312b53_build_op(read32, u32 *);
313b53_build_op(read48, u64 *);
314b53_build_op(read64, u64 *);
315
316b53_build_op(write8, u8);
317b53_build_op(write16, u16);
318b53_build_op(write32, u32);
319b53_build_op(write48, u64);
320b53_build_op(write64, u64);
321
322struct b53_arl_entry {
323 u16 port;
324 u8 mac[ETH_ALEN];
325 u16 vid;
326 u8 is_valid:1;
327 u8 is_age:1;
328 u8 is_static:1;
329};
330
331static inline void b53_arl_to_entry(struct b53_arl_entry *ent,
332 u64 mac_vid, u32 fwd_entry)
333{
334 memset(ent, 0, sizeof(*ent));
335 ent->port = fwd_entry & ARLTBL_DATA_PORT_ID_MASK;
336 ent->is_valid = !!(fwd_entry & ARLTBL_VALID);
337 ent->is_age = !!(fwd_entry & ARLTBL_AGE);
338 ent->is_static = !!(fwd_entry & ARLTBL_STATIC);
339 u64_to_ether_addr(mac_vid, ent->mac);
340 ent->vid = mac_vid >> ARLTBL_VID_S;
341}
342
343static inline void b53_arl_to_entry_25(struct b53_arl_entry *ent,
344 u64 mac_vid, u8 vid_entry)
345{
346 memset(ent, 0, sizeof(*ent));
347 ent->is_valid = !!(mac_vid & ARLTBL_VALID_25);
348 ent->is_age = !!(mac_vid & ARLTBL_AGE_25);
349 ent->is_static = !!(mac_vid & ARLTBL_STATIC_25);
350 u64_to_ether_addr(mac_vid, ent->mac);
351 ent->port = (mac_vid & ARLTBL_DATA_PORT_ID_MASK_25) >>
352 ARLTBL_DATA_PORT_ID_S_25;
353 if (is_unicast_ether_addr(ent->mac) && ent->port == B53_CPU_PORT)
354 ent->port = B53_CPU_PORT_25;
355 ent->vid = vid_entry;
356}
357
358static inline void b53_arl_to_entry_89(struct b53_arl_entry *ent,
359 u64 mac_vid, u16 fwd_entry)
360{
361 memset(ent, 0, sizeof(*ent));
362 ent->port = fwd_entry & ARLTBL_DATA_PORT_ID_MASK_89;
363 ent->is_valid = !!(fwd_entry & ARLTBL_VALID_89);
364 ent->is_age = !!(fwd_entry & ARLTBL_AGE_89);
365 ent->is_static = !!(fwd_entry & ARLTBL_STATIC_89);
366 u64_to_ether_addr(mac_vid, ent->mac);
367 ent->vid = mac_vid >> ARLTBL_VID_S;
368}
369
370static inline void b53_arl_from_entry(u64 *mac_vid, u32 *fwd_entry,
371 const struct b53_arl_entry *ent)
372{
373 *mac_vid = ether_addr_to_u64(ent->mac);
374 *mac_vid |= (u64)(ent->vid & ARLTBL_VID_MASK) << ARLTBL_VID_S;
375 *fwd_entry = ent->port & ARLTBL_DATA_PORT_ID_MASK;
376 if (ent->is_valid)
377 *fwd_entry |= ARLTBL_VALID;
378 if (ent->is_static)
379 *fwd_entry |= ARLTBL_STATIC;
380 if (ent->is_age)
381 *fwd_entry |= ARLTBL_AGE;
382}
383
384static inline void b53_arl_from_entry_25(u64 *mac_vid, u8 *vid_entry,
385 const struct b53_arl_entry *ent)
386{
387 *mac_vid = ether_addr_to_u64(ent->mac);
388 if (is_unicast_ether_addr(ent->mac) && ent->port == B53_CPU_PORT_25)
389 *mac_vid |= (u64)B53_CPU_PORT << ARLTBL_DATA_PORT_ID_S_25;
390 else
391 *mac_vid |= ((u64)ent->port << ARLTBL_DATA_PORT_ID_S_25) &
392 ARLTBL_DATA_PORT_ID_MASK_25;
393 if (ent->is_valid)
394 *mac_vid |= ARLTBL_VALID_25;
395 if (ent->is_static)
396 *mac_vid |= ARLTBL_STATIC_25;
397 if (ent->is_age)
398 *mac_vid |= ARLTBL_AGE_25;
399 *vid_entry = ent->vid;
400}
401
402static inline void b53_arl_from_entry_89(u64 *mac_vid, u32 *fwd_entry,
403 const struct b53_arl_entry *ent)
404{
405 *mac_vid = ether_addr_to_u64(ent->mac);
406 *mac_vid |= (u64)(ent->vid & ARLTBL_VID_MASK) << ARLTBL_VID_S;
407 *fwd_entry = ent->port & ARLTBL_DATA_PORT_ID_MASK_89;
408 if (ent->is_valid)
409 *fwd_entry |= ARLTBL_VALID_89;
410 if (ent->is_static)
411 *fwd_entry |= ARLTBL_STATIC_89;
412 if (ent->is_age)
413 *fwd_entry |= ARLTBL_AGE_89;
414}
415
416static inline void b53_arl_search_to_entry_25(struct b53_arl_entry *ent,
417 u64 mac_vid, u8 ext)
418{
419 memset(ent, 0, sizeof(*ent));
420 ent->is_valid = !!(mac_vid & ARLTBL_VALID_25);
421 ent->is_age = !!(mac_vid & ARLTBL_AGE_25);
422 ent->is_static = !!(mac_vid & ARLTBL_STATIC_25);
423 u64_to_ether_addr(mac_vid, ent->mac);
424 ent->vid = (mac_vid & ARL_SRCH_RSLT_VID_MASK_25) >>
425 ARL_SRCH_RSLT_VID_S_25;
426 ent->port = (mac_vid & ARL_SRCH_RSLT_PORT_ID_MASK_25) >>
427 ARL_SRCH_RSLT_PORT_ID_S_25;
428 if (is_multicast_ether_addr(ent->mac) && (ext & ARL_SRCH_RSLT_EXT_MC_MII))
429 ent->port |= BIT(B53_CPU_PORT_25);
430 else if (!is_multicast_ether_addr(ent->mac) && ent->port == B53_CPU_PORT)
431 ent->port = B53_CPU_PORT_25;
432}
433
434static inline void b53_arl_search_to_entry_63xx(struct b53_arl_entry *ent,
435 u64 mac_vid, u16 fwd_entry)
436{
437 memset(ent, 0, sizeof(*ent));
438 u64_to_ether_addr(mac_vid, ent->mac);
439 ent->vid = mac_vid >> ARLTBL_VID_S;
440
441 ent->port = fwd_entry & ARL_SRST_PORT_ID_MASK_63XX;
442 ent->port >>= 1;
443
444 ent->is_age = !!(fwd_entry & ARL_SRST_AGE_63XX);
445 ent->is_static = !!(fwd_entry & ARL_SRST_STATIC_63XX);
446 ent->is_valid = 1;
447}
448
449static inline void b53_arl_read_entry(struct b53_device *dev,
450 struct b53_arl_entry *ent, u8 idx)
451{
452 dev->arl_ops->arl_read_entry(dev, ent, idx);
453}
454
455static inline void b53_arl_write_entry(struct b53_device *dev,
456 const struct b53_arl_entry *ent, u8 idx)
457{
458 dev->arl_ops->arl_write_entry(dev, ent, idx);
459}
460
461static inline void b53_arl_search_read(struct b53_device *dev, u8 idx,
462 struct b53_arl_entry *ent)
463{
464 dev->arl_ops->arl_search_read(dev, idx, ent);
465}
466
467#ifdef CONFIG_BCM47XX
468
469#include <linux/bcm47xx_nvram.h>
470#include <bcm47xx_board.h>
471static inline int b53_switch_get_reset_gpio(struct b53_device *dev)
472{
473 enum bcm47xx_board board = bcm47xx_board_get();
474
475 switch (board) {
476 case BCM47XX_BOARD_LINKSYS_WRT300NV11:
477 case BCM47XX_BOARD_LINKSYS_WRT310NV1:
478 return 8;
479 default:
480 return bcm47xx_nvram_gpio_pin("robo_reset");
481 }
482}
483#else
484static inline int b53_switch_get_reset_gpio(struct b53_device *dev)
485{
486 return -ENOENT;
487}
488#endif
489
490/* Exported functions towards other drivers */
491void b53_imp_vlan_setup(struct dsa_switch *ds, int cpu_port);
492int b53_configure_vlan(struct dsa_switch *ds);
493void b53_get_strings(struct dsa_switch *ds, int port, u32 stringset,
494 uint8_t *data);
495void b53_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *data);
496int b53_get_sset_count(struct dsa_switch *ds, int port, int sset);
497void b53_get_ethtool_phy_stats(struct dsa_switch *ds, int port, uint64_t *data);
498int b53_set_ageing_time(struct dsa_switch *ds, unsigned int msecs);
499int b53_br_join(struct dsa_switch *ds, int port, struct dsa_bridge bridge,
500 bool *tx_fwd_offload, struct netlink_ext_ack *extack);
501void b53_br_leave(struct dsa_switch *ds, int port, struct dsa_bridge bridge);
502void b53_br_set_stp_state(struct dsa_switch *ds, int port, u8 state);
503void b53_br_fast_age(struct dsa_switch *ds, int port);
504int b53_br_flags_pre(struct dsa_switch *ds, int port,
505 struct switchdev_brport_flags flags,
506 struct netlink_ext_ack *extack);
507int b53_br_flags(struct dsa_switch *ds, int port,
508 struct switchdev_brport_flags flags,
509 struct netlink_ext_ack *extack);
510int b53_setup_devlink_resources(struct dsa_switch *ds);
511void b53_port_event(struct dsa_switch *ds, int port);
512int b53_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering,
513 struct netlink_ext_ack *extack);
514int b53_vlan_add(struct dsa_switch *ds, int port,
515 const struct switchdev_obj_port_vlan *vlan,
516 struct netlink_ext_ack *extack);
517int b53_vlan_del(struct dsa_switch *ds, int port,
518 const struct switchdev_obj_port_vlan *vlan);
519int b53_fdb_add(struct dsa_switch *ds, int port,
520 const unsigned char *addr, u16 vid,
521 struct dsa_db db);
522int b53_fdb_del(struct dsa_switch *ds, int port,
523 const unsigned char *addr, u16 vid,
524 struct dsa_db db);
525int b53_fdb_dump(struct dsa_switch *ds, int port,
526 dsa_fdb_dump_cb_t *cb, void *data);
527int b53_mdb_add(struct dsa_switch *ds, int port,
528 const struct switchdev_obj_port_mdb *mdb,
529 struct dsa_db db);
530int b53_mdb_del(struct dsa_switch *ds, int port,
531 const struct switchdev_obj_port_mdb *mdb,
532 struct dsa_db db);
533int b53_mirror_add(struct dsa_switch *ds, int port,
534 struct dsa_mall_mirror_tc_entry *mirror, bool ingress,
535 struct netlink_ext_ack *extack);
536enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds, int port,
537 enum dsa_tag_protocol mprot);
538void b53_mirror_del(struct dsa_switch *ds, int port,
539 struct dsa_mall_mirror_tc_entry *mirror);
540int b53_setup_port(struct dsa_switch *ds, int port);
541int b53_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy);
542void b53_disable_port(struct dsa_switch *ds, int port);
543void b53_brcm_hdr_setup(struct dsa_switch *ds, int port);
544int b53_eee_init(struct dsa_switch *ds, int port, struct phy_device *phy);
545bool b53_support_eee(struct dsa_switch *ds, int port);
546int b53_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_keee *e);
547
548#endif