Commit | Line | Data |
---|---|---|
91da11f8 LB |
1 | /* |
2 | * net/dsa/mv88e6xxx.c - Marvell 88e6xxx switch chip support | |
3 | * Copyright (c) 2008 Marvell Semiconductor | |
4 | * | |
b8fee957 VD |
5 | * Copyright (c) 2015 CMC Electronics, Inc. |
6 | * Added support for VLAN Table Unit operations | |
7 | * | |
91da11f8 LB |
8 | * This program is free software; you can redistribute it and/or modify |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | */ | |
13 | ||
19b2f97e | 14 | #include <linux/delay.h> |
defb05b9 | 15 | #include <linux/etherdevice.h> |
dea87024 | 16 | #include <linux/ethtool.h> |
facd95b2 | 17 | #include <linux/if_bridge.h> |
19b2f97e | 18 | #include <linux/jiffies.h> |
91da11f8 | 19 | #include <linux/list.h> |
2bbba277 | 20 | #include <linux/module.h> |
91da11f8 | 21 | #include <linux/netdevice.h> |
c8c1b39a | 22 | #include <linux/gpio/consumer.h> |
91da11f8 | 23 | #include <linux/phy.h> |
c8f0b869 | 24 | #include <net/dsa.h> |
1f36faf2 | 25 | #include <net/switchdev.h> |
91da11f8 LB |
26 | #include "mv88e6xxx.h" |
27 | ||
158bc065 | 28 | static void assert_smi_lock(struct mv88e6xxx_priv_state *ps) |
3996a4ff | 29 | { |
3996a4ff | 30 | if (unlikely(!mutex_is_locked(&ps->smi_mutex))) { |
158bc065 | 31 | dev_err(ps->dev, "SMI lock not held!\n"); |
3996a4ff VD |
32 | dump_stack(); |
33 | } | |
34 | } | |
35 | ||
3675c8d7 | 36 | /* If the switch's ADDR[4:0] strap pins are strapped to zero, it will |
91da11f8 LB |
37 | * use all 32 SMI bus addresses on its SMI bus, and all switch registers |
38 | * will be directly accessible on some {device address,register address} | |
39 | * pair. If the ADDR[4:0] pins are not strapped to zero, the switch | |
40 | * will only respond to SMI transactions to that specific address, and | |
41 | * an indirect addressing mechanism needs to be used to access its | |
42 | * registers. | |
43 | */ | |
44 | static int mv88e6xxx_reg_wait_ready(struct mii_bus *bus, int sw_addr) | |
45 | { | |
46 | int ret; | |
47 | int i; | |
48 | ||
49 | for (i = 0; i < 16; i++) { | |
6e899e6c | 50 | ret = mdiobus_read_nested(bus, sw_addr, SMI_CMD); |
91da11f8 LB |
51 | if (ret < 0) |
52 | return ret; | |
53 | ||
cca8b133 | 54 | if ((ret & SMI_CMD_BUSY) == 0) |
91da11f8 LB |
55 | return 0; |
56 | } | |
57 | ||
58 | return -ETIMEDOUT; | |
59 | } | |
60 | ||
b9b37713 VD |
61 | static int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, |
62 | int reg) | |
91da11f8 LB |
63 | { |
64 | int ret; | |
65 | ||
66 | if (sw_addr == 0) | |
6e899e6c | 67 | return mdiobus_read_nested(bus, addr, reg); |
91da11f8 | 68 | |
3675c8d7 | 69 | /* Wait for the bus to become free. */ |
91da11f8 LB |
70 | ret = mv88e6xxx_reg_wait_ready(bus, sw_addr); |
71 | if (ret < 0) | |
72 | return ret; | |
73 | ||
3675c8d7 | 74 | /* Transmit the read command. */ |
6e899e6c NA |
75 | ret = mdiobus_write_nested(bus, sw_addr, SMI_CMD, |
76 | SMI_CMD_OP_22_READ | (addr << 5) | reg); | |
91da11f8 LB |
77 | if (ret < 0) |
78 | return ret; | |
79 | ||
3675c8d7 | 80 | /* Wait for the read command to complete. */ |
91da11f8 LB |
81 | ret = mv88e6xxx_reg_wait_ready(bus, sw_addr); |
82 | if (ret < 0) | |
83 | return ret; | |
84 | ||
3675c8d7 | 85 | /* Read the data. */ |
6e899e6c | 86 | ret = mdiobus_read_nested(bus, sw_addr, SMI_DATA); |
91da11f8 LB |
87 | if (ret < 0) |
88 | return ret; | |
89 | ||
90 | return ret & 0xffff; | |
91 | } | |
92 | ||
158bc065 AL |
93 | static int _mv88e6xxx_reg_read(struct mv88e6xxx_priv_state *ps, |
94 | int addr, int reg) | |
91da11f8 | 95 | { |
91da11f8 LB |
96 | int ret; |
97 | ||
158bc065 | 98 | assert_smi_lock(ps); |
3996a4ff | 99 | |
a77d43f1 | 100 | ret = __mv88e6xxx_reg_read(ps->bus, ps->sw_addr, addr, reg); |
bb92ea5e VD |
101 | if (ret < 0) |
102 | return ret; | |
103 | ||
158bc065 | 104 | dev_dbg(ps->dev, "<- addr: 0x%.2x reg: 0x%.2x val: 0x%.4x\n", |
bb92ea5e VD |
105 | addr, reg, ret); |
106 | ||
91da11f8 LB |
107 | return ret; |
108 | } | |
109 | ||
158bc065 | 110 | int mv88e6xxx_reg_read(struct mv88e6xxx_priv_state *ps, int addr, int reg) |
8d6d09e7 | 111 | { |
8d6d09e7 GR |
112 | int ret; |
113 | ||
114 | mutex_lock(&ps->smi_mutex); | |
158bc065 | 115 | ret = _mv88e6xxx_reg_read(ps, addr, reg); |
8d6d09e7 GR |
116 | mutex_unlock(&ps->smi_mutex); |
117 | ||
118 | return ret; | |
119 | } | |
120 | ||
b9b37713 VD |
121 | static int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr, |
122 | int reg, u16 val) | |
91da11f8 LB |
123 | { |
124 | int ret; | |
125 | ||
126 | if (sw_addr == 0) | |
6e899e6c | 127 | return mdiobus_write_nested(bus, addr, reg, val); |
91da11f8 | 128 | |
3675c8d7 | 129 | /* Wait for the bus to become free. */ |
91da11f8 LB |
130 | ret = mv88e6xxx_reg_wait_ready(bus, sw_addr); |
131 | if (ret < 0) | |
132 | return ret; | |
133 | ||
3675c8d7 | 134 | /* Transmit the data to write. */ |
6e899e6c | 135 | ret = mdiobus_write_nested(bus, sw_addr, SMI_DATA, val); |
91da11f8 LB |
136 | if (ret < 0) |
137 | return ret; | |
138 | ||
3675c8d7 | 139 | /* Transmit the write command. */ |
6e899e6c NA |
140 | ret = mdiobus_write_nested(bus, sw_addr, SMI_CMD, |
141 | SMI_CMD_OP_22_WRITE | (addr << 5) | reg); | |
91da11f8 LB |
142 | if (ret < 0) |
143 | return ret; | |
144 | ||
3675c8d7 | 145 | /* Wait for the write command to complete. */ |
91da11f8 LB |
146 | ret = mv88e6xxx_reg_wait_ready(bus, sw_addr); |
147 | if (ret < 0) | |
148 | return ret; | |
149 | ||
150 | return 0; | |
151 | } | |
152 | ||
158bc065 AL |
153 | static int _mv88e6xxx_reg_write(struct mv88e6xxx_priv_state *ps, int addr, |
154 | int reg, u16 val) | |
91da11f8 | 155 | { |
158bc065 | 156 | assert_smi_lock(ps); |
91da11f8 | 157 | |
158bc065 | 158 | dev_dbg(ps->dev, "-> addr: 0x%.2x reg: 0x%.2x val: 0x%.4x\n", |
bb92ea5e VD |
159 | addr, reg, val); |
160 | ||
a77d43f1 | 161 | return __mv88e6xxx_reg_write(ps->bus, ps->sw_addr, addr, reg, val); |
8d6d09e7 GR |
162 | } |
163 | ||
158bc065 AL |
164 | int mv88e6xxx_reg_write(struct mv88e6xxx_priv_state *ps, int addr, |
165 | int reg, u16 val) | |
8d6d09e7 | 166 | { |
8d6d09e7 GR |
167 | int ret; |
168 | ||
91da11f8 | 169 | mutex_lock(&ps->smi_mutex); |
158bc065 | 170 | ret = _mv88e6xxx_reg_write(ps, addr, reg, val); |
91da11f8 LB |
171 | mutex_unlock(&ps->smi_mutex); |
172 | ||
173 | return ret; | |
174 | } | |
175 | ||
1d13a06e | 176 | static int mv88e6xxx_set_addr_direct(struct dsa_switch *ds, u8 *addr) |
2e5f0320 | 177 | { |
158bc065 | 178 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
48ace4ef | 179 | int err; |
2e5f0320 | 180 | |
158bc065 | 181 | err = mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_MAC_01, |
48ace4ef AL |
182 | (addr[0] << 8) | addr[1]); |
183 | if (err) | |
184 | return err; | |
185 | ||
158bc065 | 186 | err = mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_MAC_23, |
48ace4ef AL |
187 | (addr[2] << 8) | addr[3]); |
188 | if (err) | |
189 | return err; | |
190 | ||
158bc065 | 191 | return mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_MAC_45, |
48ace4ef | 192 | (addr[4] << 8) | addr[5]); |
2e5f0320 LB |
193 | } |
194 | ||
1d13a06e | 195 | static int mv88e6xxx_set_addr_indirect(struct dsa_switch *ds, u8 *addr) |
91da11f8 | 196 | { |
158bc065 | 197 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
91da11f8 | 198 | int ret; |
48ace4ef | 199 | int i; |
91da11f8 LB |
200 | |
201 | for (i = 0; i < 6; i++) { | |
202 | int j; | |
203 | ||
3675c8d7 | 204 | /* Write the MAC address byte. */ |
158bc065 | 205 | ret = mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_SWITCH_MAC, |
48ace4ef AL |
206 | GLOBAL2_SWITCH_MAC_BUSY | |
207 | (i << 8) | addr[i]); | |
208 | if (ret) | |
209 | return ret; | |
91da11f8 | 210 | |
3675c8d7 | 211 | /* Wait for the write to complete. */ |
91da11f8 | 212 | for (j = 0; j < 16; j++) { |
158bc065 | 213 | ret = mv88e6xxx_reg_read(ps, REG_GLOBAL2, |
48ace4ef AL |
214 | GLOBAL2_SWITCH_MAC); |
215 | if (ret < 0) | |
216 | return ret; | |
217 | ||
cca8b133 | 218 | if ((ret & GLOBAL2_SWITCH_MAC_BUSY) == 0) |
91da11f8 LB |
219 | break; |
220 | } | |
221 | if (j == 16) | |
222 | return -ETIMEDOUT; | |
223 | } | |
224 | ||
225 | return 0; | |
226 | } | |
227 | ||
1d13a06e VD |
228 | int mv88e6xxx_set_addr(struct dsa_switch *ds, u8 *addr) |
229 | { | |
230 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
231 | ||
232 | if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_SWITCH_MAC)) | |
233 | return mv88e6xxx_set_addr_indirect(ds, addr); | |
234 | else | |
235 | return mv88e6xxx_set_addr_direct(ds, addr); | |
236 | } | |
237 | ||
158bc065 AL |
238 | static int _mv88e6xxx_phy_read(struct mv88e6xxx_priv_state *ps, int addr, |
239 | int regnum) | |
91da11f8 LB |
240 | { |
241 | if (addr >= 0) | |
158bc065 | 242 | return _mv88e6xxx_reg_read(ps, addr, regnum); |
91da11f8 LB |
243 | return 0xffff; |
244 | } | |
245 | ||
158bc065 AL |
246 | static int _mv88e6xxx_phy_write(struct mv88e6xxx_priv_state *ps, int addr, |
247 | int regnum, u16 val) | |
91da11f8 LB |
248 | { |
249 | if (addr >= 0) | |
158bc065 | 250 | return _mv88e6xxx_reg_write(ps, addr, regnum, val); |
91da11f8 LB |
251 | return 0; |
252 | } | |
253 | ||
158bc065 | 254 | static int mv88e6xxx_ppu_disable(struct mv88e6xxx_priv_state *ps) |
2e5f0320 LB |
255 | { |
256 | int ret; | |
19b2f97e | 257 | unsigned long timeout; |
2e5f0320 | 258 | |
8c9983a2 | 259 | ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_CONTROL); |
48ace4ef AL |
260 | if (ret < 0) |
261 | return ret; | |
262 | ||
8c9983a2 VD |
263 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_CONTROL, |
264 | ret & ~GLOBAL_CONTROL_PPU_ENABLE); | |
48ace4ef AL |
265 | if (ret) |
266 | return ret; | |
2e5f0320 | 267 | |
19b2f97e BG |
268 | timeout = jiffies + 1 * HZ; |
269 | while (time_before(jiffies, timeout)) { | |
8c9983a2 | 270 | ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_STATUS); |
48ace4ef AL |
271 | if (ret < 0) |
272 | return ret; | |
273 | ||
19b2f97e | 274 | usleep_range(1000, 2000); |
cca8b133 AL |
275 | if ((ret & GLOBAL_STATUS_PPU_MASK) != |
276 | GLOBAL_STATUS_PPU_POLLING) | |
85686581 | 277 | return 0; |
2e5f0320 LB |
278 | } |
279 | ||
280 | return -ETIMEDOUT; | |
281 | } | |
282 | ||
158bc065 | 283 | static int mv88e6xxx_ppu_enable(struct mv88e6xxx_priv_state *ps) |
2e5f0320 | 284 | { |
48ace4ef | 285 | int ret, err; |
19b2f97e | 286 | unsigned long timeout; |
2e5f0320 | 287 | |
158bc065 | 288 | ret = mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_CONTROL); |
48ace4ef AL |
289 | if (ret < 0) |
290 | return ret; | |
291 | ||
158bc065 | 292 | err = mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_CONTROL, |
48ace4ef AL |
293 | ret | GLOBAL_CONTROL_PPU_ENABLE); |
294 | if (err) | |
295 | return err; | |
2e5f0320 | 296 | |
19b2f97e BG |
297 | timeout = jiffies + 1 * HZ; |
298 | while (time_before(jiffies, timeout)) { | |
158bc065 | 299 | ret = mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_STATUS); |
48ace4ef AL |
300 | if (ret < 0) |
301 | return ret; | |
302 | ||
19b2f97e | 303 | usleep_range(1000, 2000); |
cca8b133 AL |
304 | if ((ret & GLOBAL_STATUS_PPU_MASK) == |
305 | GLOBAL_STATUS_PPU_POLLING) | |
85686581 | 306 | return 0; |
2e5f0320 LB |
307 | } |
308 | ||
309 | return -ETIMEDOUT; | |
310 | } | |
311 | ||
312 | static void mv88e6xxx_ppu_reenable_work(struct work_struct *ugly) | |
313 | { | |
314 | struct mv88e6xxx_priv_state *ps; | |
315 | ||
316 | ps = container_of(ugly, struct mv88e6xxx_priv_state, ppu_work); | |
317 | if (mutex_trylock(&ps->ppu_mutex)) { | |
158bc065 | 318 | if (mv88e6xxx_ppu_enable(ps) == 0) |
85686581 BG |
319 | ps->ppu_disabled = 0; |
320 | mutex_unlock(&ps->ppu_mutex); | |
2e5f0320 LB |
321 | } |
322 | } | |
323 | ||
324 | static void mv88e6xxx_ppu_reenable_timer(unsigned long _ps) | |
325 | { | |
326 | struct mv88e6xxx_priv_state *ps = (void *)_ps; | |
327 | ||
328 | schedule_work(&ps->ppu_work); | |
329 | } | |
330 | ||
158bc065 | 331 | static int mv88e6xxx_ppu_access_get(struct mv88e6xxx_priv_state *ps) |
2e5f0320 | 332 | { |
2e5f0320 LB |
333 | int ret; |
334 | ||
335 | mutex_lock(&ps->ppu_mutex); | |
336 | ||
3675c8d7 | 337 | /* If the PHY polling unit is enabled, disable it so that |
2e5f0320 LB |
338 | * we can access the PHY registers. If it was already |
339 | * disabled, cancel the timer that is going to re-enable | |
340 | * it. | |
341 | */ | |
342 | if (!ps->ppu_disabled) { | |
158bc065 | 343 | ret = mv88e6xxx_ppu_disable(ps); |
85686581 BG |
344 | if (ret < 0) { |
345 | mutex_unlock(&ps->ppu_mutex); | |
346 | return ret; | |
347 | } | |
348 | ps->ppu_disabled = 1; | |
2e5f0320 | 349 | } else { |
85686581 BG |
350 | del_timer(&ps->ppu_timer); |
351 | ret = 0; | |
2e5f0320 LB |
352 | } |
353 | ||
354 | return ret; | |
355 | } | |
356 | ||
158bc065 | 357 | static void mv88e6xxx_ppu_access_put(struct mv88e6xxx_priv_state *ps) |
2e5f0320 | 358 | { |
3675c8d7 | 359 | /* Schedule a timer to re-enable the PHY polling unit. */ |
2e5f0320 LB |
360 | mod_timer(&ps->ppu_timer, jiffies + msecs_to_jiffies(10)); |
361 | mutex_unlock(&ps->ppu_mutex); | |
362 | } | |
363 | ||
158bc065 | 364 | void mv88e6xxx_ppu_state_init(struct mv88e6xxx_priv_state *ps) |
2e5f0320 | 365 | { |
2e5f0320 LB |
366 | mutex_init(&ps->ppu_mutex); |
367 | INIT_WORK(&ps->ppu_work, mv88e6xxx_ppu_reenable_work); | |
368 | init_timer(&ps->ppu_timer); | |
369 | ps->ppu_timer.data = (unsigned long)ps; | |
370 | ps->ppu_timer.function = mv88e6xxx_ppu_reenable_timer; | |
371 | } | |
372 | ||
8c9983a2 VD |
373 | static int mv88e6xxx_phy_read_ppu(struct mv88e6xxx_priv_state *ps, int addr, |
374 | int regnum) | |
2e5f0320 LB |
375 | { |
376 | int ret; | |
377 | ||
158bc065 | 378 | ret = mv88e6xxx_ppu_access_get(ps); |
2e5f0320 | 379 | if (ret >= 0) { |
8c9983a2 | 380 | ret = _mv88e6xxx_reg_read(ps, addr, regnum); |
158bc065 | 381 | mv88e6xxx_ppu_access_put(ps); |
2e5f0320 LB |
382 | } |
383 | ||
384 | return ret; | |
385 | } | |
386 | ||
8c9983a2 VD |
387 | static int mv88e6xxx_phy_write_ppu(struct mv88e6xxx_priv_state *ps, int addr, |
388 | int regnum, u16 val) | |
2e5f0320 LB |
389 | { |
390 | int ret; | |
391 | ||
158bc065 | 392 | ret = mv88e6xxx_ppu_access_get(ps); |
2e5f0320 | 393 | if (ret >= 0) { |
8c9983a2 | 394 | ret = _mv88e6xxx_reg_write(ps, addr, regnum, val); |
158bc065 | 395 | mv88e6xxx_ppu_access_put(ps); |
2e5f0320 LB |
396 | } |
397 | ||
398 | return ret; | |
399 | } | |
2e5f0320 | 400 | |
158bc065 | 401 | static bool mv88e6xxx_6065_family(struct mv88e6xxx_priv_state *ps) |
54d792f2 | 402 | { |
22356476 | 403 | return ps->info->family == MV88E6XXX_FAMILY_6065; |
54d792f2 AL |
404 | } |
405 | ||
158bc065 | 406 | static bool mv88e6xxx_6095_family(struct mv88e6xxx_priv_state *ps) |
54d792f2 | 407 | { |
22356476 | 408 | return ps->info->family == MV88E6XXX_FAMILY_6095; |
54d792f2 AL |
409 | } |
410 | ||
158bc065 | 411 | static bool mv88e6xxx_6097_family(struct mv88e6xxx_priv_state *ps) |
54d792f2 | 412 | { |
22356476 | 413 | return ps->info->family == MV88E6XXX_FAMILY_6097; |
54d792f2 AL |
414 | } |
415 | ||
158bc065 | 416 | static bool mv88e6xxx_6165_family(struct mv88e6xxx_priv_state *ps) |
54d792f2 | 417 | { |
22356476 | 418 | return ps->info->family == MV88E6XXX_FAMILY_6165; |
54d792f2 AL |
419 | } |
420 | ||
158bc065 | 421 | static bool mv88e6xxx_6185_family(struct mv88e6xxx_priv_state *ps) |
54d792f2 | 422 | { |
22356476 | 423 | return ps->info->family == MV88E6XXX_FAMILY_6185; |
54d792f2 AL |
424 | } |
425 | ||
158bc065 | 426 | static bool mv88e6xxx_6320_family(struct mv88e6xxx_priv_state *ps) |
7c3d0d67 | 427 | { |
22356476 | 428 | return ps->info->family == MV88E6XXX_FAMILY_6320; |
7c3d0d67 AK |
429 | } |
430 | ||
158bc065 | 431 | static bool mv88e6xxx_6351_family(struct mv88e6xxx_priv_state *ps) |
54d792f2 | 432 | { |
22356476 | 433 | return ps->info->family == MV88E6XXX_FAMILY_6351; |
54d792f2 AL |
434 | } |
435 | ||
158bc065 | 436 | static bool mv88e6xxx_6352_family(struct mv88e6xxx_priv_state *ps) |
f3a8b6b6 | 437 | { |
22356476 | 438 | return ps->info->family == MV88E6XXX_FAMILY_6352; |
f3a8b6b6 AL |
439 | } |
440 | ||
158bc065 | 441 | static unsigned int mv88e6xxx_num_databases(struct mv88e6xxx_priv_state *ps) |
f74df0be | 442 | { |
cd5a2c82 | 443 | return ps->info->num_databases; |
f74df0be VD |
444 | } |
445 | ||
158bc065 | 446 | static bool mv88e6xxx_has_fid_reg(struct mv88e6xxx_priv_state *ps) |
b426e5f7 VD |
447 | { |
448 | /* Does the device have dedicated FID registers for ATU and VTU ops? */ | |
158bc065 AL |
449 | if (mv88e6xxx_6097_family(ps) || mv88e6xxx_6165_family(ps) || |
450 | mv88e6xxx_6351_family(ps) || mv88e6xxx_6352_family(ps)) | |
b426e5f7 VD |
451 | return true; |
452 | ||
453 | return false; | |
454 | } | |
455 | ||
158bc065 | 456 | static bool mv88e6xxx_has_stu(struct mv88e6xxx_priv_state *ps) |
2e7bd5ef VD |
457 | { |
458 | /* Does the device have STU and dedicated SID registers for VTU ops? */ | |
158bc065 AL |
459 | if (mv88e6xxx_6097_family(ps) || mv88e6xxx_6165_family(ps) || |
460 | mv88e6xxx_6351_family(ps) || mv88e6xxx_6352_family(ps)) | |
2e7bd5ef VD |
461 | return true; |
462 | ||
463 | return false; | |
464 | } | |
465 | ||
dea87024 AL |
466 | /* We expect the switch to perform auto negotiation if there is a real |
467 | * phy. However, in the case of a fixed link phy, we force the port | |
468 | * settings from the fixed link settings. | |
469 | */ | |
470 | void mv88e6xxx_adjust_link(struct dsa_switch *ds, int port, | |
471 | struct phy_device *phydev) | |
472 | { | |
473 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
49052871 AL |
474 | u32 reg; |
475 | int ret; | |
dea87024 AL |
476 | |
477 | if (!phy_is_pseudo_fixed_link(phydev)) | |
478 | return; | |
479 | ||
480 | mutex_lock(&ps->smi_mutex); | |
481 | ||
158bc065 | 482 | ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_PCS_CTRL); |
dea87024 AL |
483 | if (ret < 0) |
484 | goto out; | |
485 | ||
486 | reg = ret & ~(PORT_PCS_CTRL_LINK_UP | | |
487 | PORT_PCS_CTRL_FORCE_LINK | | |
488 | PORT_PCS_CTRL_DUPLEX_FULL | | |
489 | PORT_PCS_CTRL_FORCE_DUPLEX | | |
490 | PORT_PCS_CTRL_UNFORCED); | |
491 | ||
492 | reg |= PORT_PCS_CTRL_FORCE_LINK; | |
493 | if (phydev->link) | |
494 | reg |= PORT_PCS_CTRL_LINK_UP; | |
495 | ||
158bc065 | 496 | if (mv88e6xxx_6065_family(ps) && phydev->speed > SPEED_100) |
dea87024 AL |
497 | goto out; |
498 | ||
499 | switch (phydev->speed) { | |
500 | case SPEED_1000: | |
501 | reg |= PORT_PCS_CTRL_1000; | |
502 | break; | |
503 | case SPEED_100: | |
504 | reg |= PORT_PCS_CTRL_100; | |
505 | break; | |
506 | case SPEED_10: | |
507 | reg |= PORT_PCS_CTRL_10; | |
508 | break; | |
509 | default: | |
510 | pr_info("Unknown speed"); | |
511 | goto out; | |
512 | } | |
513 | ||
514 | reg |= PORT_PCS_CTRL_FORCE_DUPLEX; | |
515 | if (phydev->duplex == DUPLEX_FULL) | |
516 | reg |= PORT_PCS_CTRL_DUPLEX_FULL; | |
517 | ||
158bc065 | 518 | if ((mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps)) && |
009a2b98 | 519 | (port >= ps->info->num_ports - 2)) { |
e7e72ac0 AL |
520 | if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) |
521 | reg |= PORT_PCS_CTRL_RGMII_DELAY_RXCLK; | |
522 | if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) | |
523 | reg |= PORT_PCS_CTRL_RGMII_DELAY_TXCLK; | |
524 | if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) | |
525 | reg |= (PORT_PCS_CTRL_RGMII_DELAY_RXCLK | | |
526 | PORT_PCS_CTRL_RGMII_DELAY_TXCLK); | |
527 | } | |
158bc065 | 528 | _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_PCS_CTRL, reg); |
dea87024 AL |
529 | |
530 | out: | |
531 | mutex_unlock(&ps->smi_mutex); | |
532 | } | |
533 | ||
158bc065 | 534 | static int _mv88e6xxx_stats_wait(struct mv88e6xxx_priv_state *ps) |
91da11f8 LB |
535 | { |
536 | int ret; | |
537 | int i; | |
538 | ||
539 | for (i = 0; i < 10; i++) { | |
158bc065 | 540 | ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_STATS_OP); |
cca8b133 | 541 | if ((ret & GLOBAL_STATS_OP_BUSY) == 0) |
91da11f8 LB |
542 | return 0; |
543 | } | |
544 | ||
545 | return -ETIMEDOUT; | |
546 | } | |
547 | ||
158bc065 AL |
548 | static int _mv88e6xxx_stats_snapshot(struct mv88e6xxx_priv_state *ps, |
549 | int port) | |
91da11f8 LB |
550 | { |
551 | int ret; | |
552 | ||
158bc065 | 553 | if (mv88e6xxx_6320_family(ps) || mv88e6xxx_6352_family(ps)) |
f3a8b6b6 AL |
554 | port = (port + 1) << 5; |
555 | ||
3675c8d7 | 556 | /* Snapshot the hardware statistics counters for this port. */ |
158bc065 | 557 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_STATS_OP, |
31888234 AL |
558 | GLOBAL_STATS_OP_CAPTURE_PORT | |
559 | GLOBAL_STATS_OP_HIST_RX_TX | port); | |
560 | if (ret < 0) | |
561 | return ret; | |
91da11f8 | 562 | |
3675c8d7 | 563 | /* Wait for the snapshotting to complete. */ |
158bc065 | 564 | ret = _mv88e6xxx_stats_wait(ps); |
91da11f8 LB |
565 | if (ret < 0) |
566 | return ret; | |
567 | ||
568 | return 0; | |
569 | } | |
570 | ||
158bc065 AL |
571 | static void _mv88e6xxx_stats_read(struct mv88e6xxx_priv_state *ps, |
572 | int stat, u32 *val) | |
91da11f8 LB |
573 | { |
574 | u32 _val; | |
575 | int ret; | |
576 | ||
577 | *val = 0; | |
578 | ||
158bc065 | 579 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_STATS_OP, |
31888234 AL |
580 | GLOBAL_STATS_OP_READ_CAPTURED | |
581 | GLOBAL_STATS_OP_HIST_RX_TX | stat); | |
91da11f8 LB |
582 | if (ret < 0) |
583 | return; | |
584 | ||
158bc065 | 585 | ret = _mv88e6xxx_stats_wait(ps); |
91da11f8 LB |
586 | if (ret < 0) |
587 | return; | |
588 | ||
158bc065 | 589 | ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_STATS_COUNTER_32); |
91da11f8 LB |
590 | if (ret < 0) |
591 | return; | |
592 | ||
593 | _val = ret << 16; | |
594 | ||
158bc065 | 595 | ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_STATS_COUNTER_01); |
91da11f8 LB |
596 | if (ret < 0) |
597 | return; | |
598 | ||
599 | *val = _val | ret; | |
600 | } | |
601 | ||
e413e7e1 | 602 | static struct mv88e6xxx_hw_stat mv88e6xxx_hw_stats[] = { |
f5e2ed02 AL |
603 | { "in_good_octets", 8, 0x00, BANK0, }, |
604 | { "in_bad_octets", 4, 0x02, BANK0, }, | |
605 | { "in_unicast", 4, 0x04, BANK0, }, | |
606 | { "in_broadcasts", 4, 0x06, BANK0, }, | |
607 | { "in_multicasts", 4, 0x07, BANK0, }, | |
608 | { "in_pause", 4, 0x16, BANK0, }, | |
609 | { "in_undersize", 4, 0x18, BANK0, }, | |
610 | { "in_fragments", 4, 0x19, BANK0, }, | |
611 | { "in_oversize", 4, 0x1a, BANK0, }, | |
612 | { "in_jabber", 4, 0x1b, BANK0, }, | |
613 | { "in_rx_error", 4, 0x1c, BANK0, }, | |
614 | { "in_fcs_error", 4, 0x1d, BANK0, }, | |
615 | { "out_octets", 8, 0x0e, BANK0, }, | |
616 | { "out_unicast", 4, 0x10, BANK0, }, | |
617 | { "out_broadcasts", 4, 0x13, BANK0, }, | |
618 | { "out_multicasts", 4, 0x12, BANK0, }, | |
619 | { "out_pause", 4, 0x15, BANK0, }, | |
620 | { "excessive", 4, 0x11, BANK0, }, | |
621 | { "collisions", 4, 0x1e, BANK0, }, | |
622 | { "deferred", 4, 0x05, BANK0, }, | |
623 | { "single", 4, 0x14, BANK0, }, | |
624 | { "multiple", 4, 0x17, BANK0, }, | |
625 | { "out_fcs_error", 4, 0x03, BANK0, }, | |
626 | { "late", 4, 0x1f, BANK0, }, | |
627 | { "hist_64bytes", 4, 0x08, BANK0, }, | |
628 | { "hist_65_127bytes", 4, 0x09, BANK0, }, | |
629 | { "hist_128_255bytes", 4, 0x0a, BANK0, }, | |
630 | { "hist_256_511bytes", 4, 0x0b, BANK0, }, | |
631 | { "hist_512_1023bytes", 4, 0x0c, BANK0, }, | |
632 | { "hist_1024_max_bytes", 4, 0x0d, BANK0, }, | |
633 | { "sw_in_discards", 4, 0x10, PORT, }, | |
634 | { "sw_in_filtered", 2, 0x12, PORT, }, | |
635 | { "sw_out_filtered", 2, 0x13, PORT, }, | |
636 | { "in_discards", 4, 0x00 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
637 | { "in_filtered", 4, 0x01 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
638 | { "in_accepted", 4, 0x02 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
639 | { "in_bad_accepted", 4, 0x03 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
640 | { "in_good_avb_class_a", 4, 0x04 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
641 | { "in_good_avb_class_b", 4, 0x05 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
642 | { "in_bad_avb_class_a", 4, 0x06 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
643 | { "in_bad_avb_class_b", 4, 0x07 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
644 | { "tcam_counter_0", 4, 0x08 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
645 | { "tcam_counter_1", 4, 0x09 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
646 | { "tcam_counter_2", 4, 0x0a | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
647 | { "tcam_counter_3", 4, 0x0b | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
648 | { "in_da_unknown", 4, 0x0e | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
649 | { "in_management", 4, 0x0f | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
650 | { "out_queue_0", 4, 0x10 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
651 | { "out_queue_1", 4, 0x11 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
652 | { "out_queue_2", 4, 0x12 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
653 | { "out_queue_3", 4, 0x13 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
654 | { "out_queue_4", 4, 0x14 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
655 | { "out_queue_5", 4, 0x15 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
656 | { "out_queue_6", 4, 0x16 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
657 | { "out_queue_7", 4, 0x17 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
658 | { "out_cut_through", 4, 0x18 | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
659 | { "out_octets_a", 4, 0x1a | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
660 | { "out_octets_b", 4, 0x1b | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
661 | { "out_management", 4, 0x1f | GLOBAL_STATS_OP_BANK_1, BANK1, }, | |
e413e7e1 AL |
662 | }; |
663 | ||
158bc065 | 664 | static bool mv88e6xxx_has_stat(struct mv88e6xxx_priv_state *ps, |
f5e2ed02 | 665 | struct mv88e6xxx_hw_stat *stat) |
e413e7e1 | 666 | { |
f5e2ed02 AL |
667 | switch (stat->type) { |
668 | case BANK0: | |
e413e7e1 | 669 | return true; |
f5e2ed02 | 670 | case BANK1: |
158bc065 | 671 | return mv88e6xxx_6320_family(ps); |
f5e2ed02 | 672 | case PORT: |
158bc065 AL |
673 | return mv88e6xxx_6095_family(ps) || |
674 | mv88e6xxx_6185_family(ps) || | |
675 | mv88e6xxx_6097_family(ps) || | |
676 | mv88e6xxx_6165_family(ps) || | |
677 | mv88e6xxx_6351_family(ps) || | |
678 | mv88e6xxx_6352_family(ps); | |
91da11f8 | 679 | } |
f5e2ed02 | 680 | return false; |
91da11f8 LB |
681 | } |
682 | ||
158bc065 | 683 | static uint64_t _mv88e6xxx_get_ethtool_stat(struct mv88e6xxx_priv_state *ps, |
f5e2ed02 | 684 | struct mv88e6xxx_hw_stat *s, |
80c4627b AL |
685 | int port) |
686 | { | |
80c4627b AL |
687 | u32 low; |
688 | u32 high = 0; | |
689 | int ret; | |
690 | u64 value; | |
691 | ||
f5e2ed02 AL |
692 | switch (s->type) { |
693 | case PORT: | |
158bc065 | 694 | ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), s->reg); |
80c4627b AL |
695 | if (ret < 0) |
696 | return UINT64_MAX; | |
697 | ||
698 | low = ret; | |
699 | if (s->sizeof_stat == 4) { | |
158bc065 | 700 | ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), |
f5e2ed02 | 701 | s->reg + 1); |
80c4627b AL |
702 | if (ret < 0) |
703 | return UINT64_MAX; | |
704 | high = ret; | |
705 | } | |
f5e2ed02 AL |
706 | break; |
707 | case BANK0: | |
708 | case BANK1: | |
158bc065 | 709 | _mv88e6xxx_stats_read(ps, s->reg, &low); |
80c4627b | 710 | if (s->sizeof_stat == 8) |
158bc065 | 711 | _mv88e6xxx_stats_read(ps, s->reg + 1, &high); |
80c4627b AL |
712 | } |
713 | value = (((u64)high) << 16) | low; | |
714 | return value; | |
715 | } | |
716 | ||
f5e2ed02 | 717 | void mv88e6xxx_get_strings(struct dsa_switch *ds, int port, uint8_t *data) |
91da11f8 | 718 | { |
158bc065 | 719 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
f5e2ed02 AL |
720 | struct mv88e6xxx_hw_stat *stat; |
721 | int i, j; | |
91da11f8 | 722 | |
f5e2ed02 AL |
723 | for (i = 0, j = 0; i < ARRAY_SIZE(mv88e6xxx_hw_stats); i++) { |
724 | stat = &mv88e6xxx_hw_stats[i]; | |
158bc065 | 725 | if (mv88e6xxx_has_stat(ps, stat)) { |
f5e2ed02 AL |
726 | memcpy(data + j * ETH_GSTRING_LEN, stat->string, |
727 | ETH_GSTRING_LEN); | |
728 | j++; | |
729 | } | |
91da11f8 | 730 | } |
e413e7e1 AL |
731 | } |
732 | ||
733 | int mv88e6xxx_get_sset_count(struct dsa_switch *ds) | |
734 | { | |
158bc065 | 735 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
f5e2ed02 AL |
736 | struct mv88e6xxx_hw_stat *stat; |
737 | int i, j; | |
738 | ||
739 | for (i = 0, j = 0; i < ARRAY_SIZE(mv88e6xxx_hw_stats); i++) { | |
740 | stat = &mv88e6xxx_hw_stats[i]; | |
158bc065 | 741 | if (mv88e6xxx_has_stat(ps, stat)) |
f5e2ed02 AL |
742 | j++; |
743 | } | |
744 | return j; | |
e413e7e1 AL |
745 | } |
746 | ||
747 | void | |
748 | mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds, | |
749 | int port, uint64_t *data) | |
750 | { | |
f5e2ed02 AL |
751 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
752 | struct mv88e6xxx_hw_stat *stat; | |
753 | int ret; | |
754 | int i, j; | |
755 | ||
756 | mutex_lock(&ps->smi_mutex); | |
757 | ||
158bc065 | 758 | ret = _mv88e6xxx_stats_snapshot(ps, port); |
f5e2ed02 AL |
759 | if (ret < 0) { |
760 | mutex_unlock(&ps->smi_mutex); | |
761 | return; | |
762 | } | |
763 | for (i = 0, j = 0; i < ARRAY_SIZE(mv88e6xxx_hw_stats); i++) { | |
764 | stat = &mv88e6xxx_hw_stats[i]; | |
158bc065 AL |
765 | if (mv88e6xxx_has_stat(ps, stat)) { |
766 | data[j] = _mv88e6xxx_get_ethtool_stat(ps, stat, port); | |
f5e2ed02 AL |
767 | j++; |
768 | } | |
769 | } | |
770 | ||
771 | mutex_unlock(&ps->smi_mutex); | |
e413e7e1 AL |
772 | } |
773 | ||
a1ab91f3 GR |
774 | int mv88e6xxx_get_regs_len(struct dsa_switch *ds, int port) |
775 | { | |
776 | return 32 * sizeof(u16); | |
777 | } | |
778 | ||
779 | void mv88e6xxx_get_regs(struct dsa_switch *ds, int port, | |
780 | struct ethtool_regs *regs, void *_p) | |
781 | { | |
158bc065 | 782 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
a1ab91f3 GR |
783 | u16 *p = _p; |
784 | int i; | |
785 | ||
786 | regs->version = 0; | |
787 | ||
788 | memset(p, 0xff, 32 * sizeof(u16)); | |
789 | ||
23062513 VD |
790 | mutex_lock(&ps->smi_mutex); |
791 | ||
a1ab91f3 GR |
792 | for (i = 0; i < 32; i++) { |
793 | int ret; | |
794 | ||
23062513 | 795 | ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), i); |
a1ab91f3 GR |
796 | if (ret >= 0) |
797 | p[i] = ret; | |
798 | } | |
23062513 VD |
799 | |
800 | mutex_unlock(&ps->smi_mutex); | |
a1ab91f3 GR |
801 | } |
802 | ||
158bc065 | 803 | static int _mv88e6xxx_wait(struct mv88e6xxx_priv_state *ps, int reg, int offset, |
3898c148 | 804 | u16 mask) |
f3044683 AL |
805 | { |
806 | unsigned long timeout = jiffies + HZ / 10; | |
807 | ||
808 | while (time_before(jiffies, timeout)) { | |
809 | int ret; | |
810 | ||
158bc065 | 811 | ret = _mv88e6xxx_reg_read(ps, reg, offset); |
3898c148 AL |
812 | if (ret < 0) |
813 | return ret; | |
f3044683 AL |
814 | if (!(ret & mask)) |
815 | return 0; | |
816 | ||
817 | usleep_range(1000, 2000); | |
818 | } | |
819 | return -ETIMEDOUT; | |
820 | } | |
821 | ||
158bc065 AL |
822 | static int mv88e6xxx_wait(struct mv88e6xxx_priv_state *ps, int reg, |
823 | int offset, u16 mask) | |
3898c148 | 824 | { |
3898c148 AL |
825 | int ret; |
826 | ||
827 | mutex_lock(&ps->smi_mutex); | |
158bc065 | 828 | ret = _mv88e6xxx_wait(ps, reg, offset, mask); |
3898c148 AL |
829 | mutex_unlock(&ps->smi_mutex); |
830 | ||
831 | return ret; | |
832 | } | |
833 | ||
158bc065 | 834 | static int _mv88e6xxx_phy_wait(struct mv88e6xxx_priv_state *ps) |
f3044683 | 835 | { |
158bc065 | 836 | return _mv88e6xxx_wait(ps, REG_GLOBAL2, GLOBAL2_SMI_OP, |
3898c148 | 837 | GLOBAL2_SMI_OP_BUSY); |
f3044683 AL |
838 | } |
839 | ||
d24645be | 840 | static int mv88e6xxx_eeprom_load_wait(struct dsa_switch *ds) |
f3044683 | 841 | { |
158bc065 AL |
842 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
843 | ||
844 | return mv88e6xxx_wait(ps, REG_GLOBAL2, GLOBAL2_EEPROM_OP, | |
cca8b133 | 845 | GLOBAL2_EEPROM_OP_LOAD); |
f3044683 AL |
846 | } |
847 | ||
d24645be | 848 | static int mv88e6xxx_eeprom_busy_wait(struct dsa_switch *ds) |
f3044683 | 849 | { |
158bc065 AL |
850 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
851 | ||
852 | return mv88e6xxx_wait(ps, REG_GLOBAL2, GLOBAL2_EEPROM_OP, | |
cca8b133 | 853 | GLOBAL2_EEPROM_OP_BUSY); |
f3044683 AL |
854 | } |
855 | ||
d24645be VD |
856 | static int mv88e6xxx_read_eeprom_word(struct dsa_switch *ds, int addr) |
857 | { | |
858 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
859 | int ret; | |
860 | ||
861 | mutex_lock(&ps->eeprom_mutex); | |
862 | ||
863 | ret = mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_EEPROM_OP, | |
864 | GLOBAL2_EEPROM_OP_READ | | |
865 | (addr & GLOBAL2_EEPROM_OP_ADDR_MASK)); | |
866 | if (ret < 0) | |
867 | goto error; | |
868 | ||
869 | ret = mv88e6xxx_eeprom_busy_wait(ds); | |
870 | if (ret < 0) | |
871 | goto error; | |
872 | ||
873 | ret = mv88e6xxx_reg_read(ps, REG_GLOBAL2, GLOBAL2_EEPROM_DATA); | |
874 | error: | |
875 | mutex_unlock(&ps->eeprom_mutex); | |
876 | return ret; | |
877 | } | |
878 | ||
879 | int mv88e6xxx_get_eeprom(struct dsa_switch *ds, struct ethtool_eeprom *eeprom, | |
880 | u8 *data) | |
881 | { | |
882 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
883 | int offset; | |
884 | int len; | |
885 | int ret; | |
886 | ||
887 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_EEPROM)) | |
888 | return -EOPNOTSUPP; | |
889 | ||
890 | offset = eeprom->offset; | |
891 | len = eeprom->len; | |
892 | eeprom->len = 0; | |
893 | ||
894 | eeprom->magic = 0xc3ec4951; | |
895 | ||
896 | ret = mv88e6xxx_eeprom_load_wait(ds); | |
897 | if (ret < 0) | |
898 | return ret; | |
899 | ||
900 | if (offset & 1) { | |
901 | int word; | |
902 | ||
903 | word = mv88e6xxx_read_eeprom_word(ds, offset >> 1); | |
904 | if (word < 0) | |
905 | return word; | |
906 | ||
907 | *data++ = (word >> 8) & 0xff; | |
908 | ||
909 | offset++; | |
910 | len--; | |
911 | eeprom->len++; | |
912 | } | |
913 | ||
914 | while (len >= 2) { | |
915 | int word; | |
916 | ||
917 | word = mv88e6xxx_read_eeprom_word(ds, offset >> 1); | |
918 | if (word < 0) | |
919 | return word; | |
920 | ||
921 | *data++ = word & 0xff; | |
922 | *data++ = (word >> 8) & 0xff; | |
923 | ||
924 | offset += 2; | |
925 | len -= 2; | |
926 | eeprom->len += 2; | |
927 | } | |
928 | ||
929 | if (len) { | |
930 | int word; | |
931 | ||
932 | word = mv88e6xxx_read_eeprom_word(ds, offset >> 1); | |
933 | if (word < 0) | |
934 | return word; | |
935 | ||
936 | *data++ = word & 0xff; | |
937 | ||
938 | offset++; | |
939 | len--; | |
940 | eeprom->len++; | |
941 | } | |
942 | ||
943 | return 0; | |
944 | } | |
945 | ||
946 | static int mv88e6xxx_eeprom_is_readonly(struct dsa_switch *ds) | |
947 | { | |
948 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
949 | int ret; | |
950 | ||
951 | ret = mv88e6xxx_reg_read(ps, REG_GLOBAL2, GLOBAL2_EEPROM_OP); | |
952 | if (ret < 0) | |
953 | return ret; | |
954 | ||
955 | if (!(ret & GLOBAL2_EEPROM_OP_WRITE_EN)) | |
956 | return -EROFS; | |
957 | ||
958 | return 0; | |
959 | } | |
960 | ||
961 | static int mv88e6xxx_write_eeprom_word(struct dsa_switch *ds, int addr, | |
962 | u16 data) | |
963 | { | |
964 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
965 | int ret; | |
966 | ||
967 | mutex_lock(&ps->eeprom_mutex); | |
968 | ||
969 | ret = mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_EEPROM_DATA, data); | |
970 | if (ret < 0) | |
971 | goto error; | |
972 | ||
973 | ret = mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_EEPROM_OP, | |
974 | GLOBAL2_EEPROM_OP_WRITE | | |
975 | (addr & GLOBAL2_EEPROM_OP_ADDR_MASK)); | |
976 | if (ret < 0) | |
977 | goto error; | |
978 | ||
979 | ret = mv88e6xxx_eeprom_busy_wait(ds); | |
980 | error: | |
981 | mutex_unlock(&ps->eeprom_mutex); | |
982 | return ret; | |
983 | } | |
984 | ||
985 | int mv88e6xxx_set_eeprom(struct dsa_switch *ds, struct ethtool_eeprom *eeprom, | |
986 | u8 *data) | |
987 | { | |
988 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
989 | int offset; | |
990 | int ret; | |
991 | int len; | |
992 | ||
993 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_EEPROM)) | |
994 | return -EOPNOTSUPP; | |
995 | ||
996 | if (eeprom->magic != 0xc3ec4951) | |
997 | return -EINVAL; | |
998 | ||
999 | ret = mv88e6xxx_eeprom_is_readonly(ds); | |
1000 | if (ret) | |
1001 | return ret; | |
1002 | ||
1003 | offset = eeprom->offset; | |
1004 | len = eeprom->len; | |
1005 | eeprom->len = 0; | |
1006 | ||
1007 | ret = mv88e6xxx_eeprom_load_wait(ds); | |
1008 | if (ret < 0) | |
1009 | return ret; | |
1010 | ||
1011 | if (offset & 1) { | |
1012 | int word; | |
1013 | ||
1014 | word = mv88e6xxx_read_eeprom_word(ds, offset >> 1); | |
1015 | if (word < 0) | |
1016 | return word; | |
1017 | ||
1018 | word = (*data++ << 8) | (word & 0xff); | |
1019 | ||
1020 | ret = mv88e6xxx_write_eeprom_word(ds, offset >> 1, word); | |
1021 | if (ret < 0) | |
1022 | return ret; | |
1023 | ||
1024 | offset++; | |
1025 | len--; | |
1026 | eeprom->len++; | |
1027 | } | |
1028 | ||
1029 | while (len >= 2) { | |
1030 | int word; | |
1031 | ||
1032 | word = *data++; | |
1033 | word |= *data++ << 8; | |
1034 | ||
1035 | ret = mv88e6xxx_write_eeprom_word(ds, offset >> 1, word); | |
1036 | if (ret < 0) | |
1037 | return ret; | |
1038 | ||
1039 | offset += 2; | |
1040 | len -= 2; | |
1041 | eeprom->len += 2; | |
1042 | } | |
1043 | ||
1044 | if (len) { | |
1045 | int word; | |
1046 | ||
1047 | word = mv88e6xxx_read_eeprom_word(ds, offset >> 1); | |
1048 | if (word < 0) | |
1049 | return word; | |
1050 | ||
1051 | word = (word & 0xff00) | *data++; | |
1052 | ||
1053 | ret = mv88e6xxx_write_eeprom_word(ds, offset >> 1, word); | |
1054 | if (ret < 0) | |
1055 | return ret; | |
1056 | ||
1057 | offset++; | |
1058 | len--; | |
1059 | eeprom->len++; | |
1060 | } | |
1061 | ||
1062 | return 0; | |
1063 | } | |
1064 | ||
158bc065 | 1065 | static int _mv88e6xxx_atu_wait(struct mv88e6xxx_priv_state *ps) |
facd95b2 | 1066 | { |
158bc065 | 1067 | return _mv88e6xxx_wait(ps, REG_GLOBAL, GLOBAL_ATU_OP, |
cca8b133 | 1068 | GLOBAL_ATU_OP_BUSY); |
facd95b2 GR |
1069 | } |
1070 | ||
158bc065 AL |
1071 | static int _mv88e6xxx_phy_read_indirect(struct mv88e6xxx_priv_state *ps, |
1072 | int addr, int regnum) | |
f3044683 AL |
1073 | { |
1074 | int ret; | |
1075 | ||
158bc065 | 1076 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_SMI_OP, |
3898c148 AL |
1077 | GLOBAL2_SMI_OP_22_READ | (addr << 5) | |
1078 | regnum); | |
1079 | if (ret < 0) | |
1080 | return ret; | |
f3044683 | 1081 | |
158bc065 | 1082 | ret = _mv88e6xxx_phy_wait(ps); |
f3044683 AL |
1083 | if (ret < 0) |
1084 | return ret; | |
1085 | ||
158bc065 AL |
1086 | ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL2, GLOBAL2_SMI_DATA); |
1087 | ||
1088 | return ret; | |
f3044683 AL |
1089 | } |
1090 | ||
158bc065 AL |
1091 | static int _mv88e6xxx_phy_write_indirect(struct mv88e6xxx_priv_state *ps, |
1092 | int addr, int regnum, u16 val) | |
f3044683 | 1093 | { |
3898c148 AL |
1094 | int ret; |
1095 | ||
158bc065 | 1096 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_SMI_DATA, val); |
3898c148 AL |
1097 | if (ret < 0) |
1098 | return ret; | |
f3044683 | 1099 | |
158bc065 | 1100 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_SMI_OP, |
3898c148 AL |
1101 | GLOBAL2_SMI_OP_22_WRITE | (addr << 5) | |
1102 | regnum); | |
1103 | ||
158bc065 | 1104 | return _mv88e6xxx_phy_wait(ps); |
f3044683 AL |
1105 | } |
1106 | ||
11b3b45d GR |
1107 | int mv88e6xxx_get_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e) |
1108 | { | |
2f40c698 | 1109 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
11b3b45d GR |
1110 | int reg; |
1111 | ||
aadbdb8a VD |
1112 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_EEE)) |
1113 | return -EOPNOTSUPP; | |
1114 | ||
3898c148 | 1115 | mutex_lock(&ps->smi_mutex); |
2f40c698 | 1116 | |
158bc065 | 1117 | reg = _mv88e6xxx_phy_read_indirect(ps, port, 16); |
11b3b45d | 1118 | if (reg < 0) |
2f40c698 | 1119 | goto out; |
11b3b45d GR |
1120 | |
1121 | e->eee_enabled = !!(reg & 0x0200); | |
1122 | e->tx_lpi_enabled = !!(reg & 0x0100); | |
1123 | ||
158bc065 | 1124 | reg = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_STATUS); |
11b3b45d | 1125 | if (reg < 0) |
2f40c698 | 1126 | goto out; |
11b3b45d | 1127 | |
cca8b133 | 1128 | e->eee_active = !!(reg & PORT_STATUS_EEE); |
2f40c698 | 1129 | reg = 0; |
11b3b45d | 1130 | |
2f40c698 | 1131 | out: |
3898c148 | 1132 | mutex_unlock(&ps->smi_mutex); |
2f40c698 | 1133 | return reg; |
11b3b45d GR |
1134 | } |
1135 | ||
1136 | int mv88e6xxx_set_eee(struct dsa_switch *ds, int port, | |
1137 | struct phy_device *phydev, struct ethtool_eee *e) | |
1138 | { | |
2f40c698 AL |
1139 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
1140 | int reg; | |
11b3b45d GR |
1141 | int ret; |
1142 | ||
aadbdb8a VD |
1143 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_EEE)) |
1144 | return -EOPNOTSUPP; | |
1145 | ||
3898c148 | 1146 | mutex_lock(&ps->smi_mutex); |
11b3b45d | 1147 | |
158bc065 | 1148 | ret = _mv88e6xxx_phy_read_indirect(ps, port, 16); |
2f40c698 AL |
1149 | if (ret < 0) |
1150 | goto out; | |
1151 | ||
1152 | reg = ret & ~0x0300; | |
1153 | if (e->eee_enabled) | |
1154 | reg |= 0x0200; | |
1155 | if (e->tx_lpi_enabled) | |
1156 | reg |= 0x0100; | |
1157 | ||
158bc065 | 1158 | ret = _mv88e6xxx_phy_write_indirect(ps, port, 16, reg); |
2f40c698 | 1159 | out: |
3898c148 | 1160 | mutex_unlock(&ps->smi_mutex); |
2f40c698 AL |
1161 | |
1162 | return ret; | |
11b3b45d GR |
1163 | } |
1164 | ||
158bc065 | 1165 | static int _mv88e6xxx_atu_cmd(struct mv88e6xxx_priv_state *ps, u16 fid, u16 cmd) |
facd95b2 GR |
1166 | { |
1167 | int ret; | |
1168 | ||
158bc065 AL |
1169 | if (mv88e6xxx_has_fid_reg(ps)) { |
1170 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_ATU_FID, fid); | |
b426e5f7 VD |
1171 | if (ret < 0) |
1172 | return ret; | |
158bc065 | 1173 | } else if (mv88e6xxx_num_databases(ps) == 256) { |
11ea809f | 1174 | /* ATU DBNum[7:4] are located in ATU Control 15:12 */ |
158bc065 | 1175 | ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_ATU_CONTROL); |
11ea809f VD |
1176 | if (ret < 0) |
1177 | return ret; | |
1178 | ||
158bc065 | 1179 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_ATU_CONTROL, |
11ea809f VD |
1180 | (ret & 0xfff) | |
1181 | ((fid << 8) & 0xf000)); | |
1182 | if (ret < 0) | |
1183 | return ret; | |
1184 | ||
1185 | /* ATU DBNum[3:0] are located in ATU Operation 3:0 */ | |
1186 | cmd |= fid & 0xf; | |
b426e5f7 VD |
1187 | } |
1188 | ||
158bc065 | 1189 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_ATU_OP, cmd); |
facd95b2 GR |
1190 | if (ret < 0) |
1191 | return ret; | |
1192 | ||
158bc065 | 1193 | return _mv88e6xxx_atu_wait(ps); |
facd95b2 GR |
1194 | } |
1195 | ||
158bc065 | 1196 | static int _mv88e6xxx_atu_data_write(struct mv88e6xxx_priv_state *ps, |
37705b73 VD |
1197 | struct mv88e6xxx_atu_entry *entry) |
1198 | { | |
1199 | u16 data = entry->state & GLOBAL_ATU_DATA_STATE_MASK; | |
1200 | ||
1201 | if (entry->state != GLOBAL_ATU_DATA_STATE_UNUSED) { | |
1202 | unsigned int mask, shift; | |
1203 | ||
1204 | if (entry->trunk) { | |
1205 | data |= GLOBAL_ATU_DATA_TRUNK; | |
1206 | mask = GLOBAL_ATU_DATA_TRUNK_ID_MASK; | |
1207 | shift = GLOBAL_ATU_DATA_TRUNK_ID_SHIFT; | |
1208 | } else { | |
1209 | mask = GLOBAL_ATU_DATA_PORT_VECTOR_MASK; | |
1210 | shift = GLOBAL_ATU_DATA_PORT_VECTOR_SHIFT; | |
1211 | } | |
1212 | ||
1213 | data |= (entry->portv_trunkid << shift) & mask; | |
1214 | } | |
1215 | ||
158bc065 | 1216 | return _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_ATU_DATA, data); |
37705b73 VD |
1217 | } |
1218 | ||
158bc065 | 1219 | static int _mv88e6xxx_atu_flush_move(struct mv88e6xxx_priv_state *ps, |
7fb5e755 VD |
1220 | struct mv88e6xxx_atu_entry *entry, |
1221 | bool static_too) | |
facd95b2 | 1222 | { |
7fb5e755 VD |
1223 | int op; |
1224 | int err; | |
facd95b2 | 1225 | |
158bc065 | 1226 | err = _mv88e6xxx_atu_wait(ps); |
7fb5e755 VD |
1227 | if (err) |
1228 | return err; | |
facd95b2 | 1229 | |
158bc065 | 1230 | err = _mv88e6xxx_atu_data_write(ps, entry); |
7fb5e755 VD |
1231 | if (err) |
1232 | return err; | |
1233 | ||
1234 | if (entry->fid) { | |
7fb5e755 VD |
1235 | op = static_too ? GLOBAL_ATU_OP_FLUSH_MOVE_ALL_DB : |
1236 | GLOBAL_ATU_OP_FLUSH_MOVE_NON_STATIC_DB; | |
1237 | } else { | |
1238 | op = static_too ? GLOBAL_ATU_OP_FLUSH_MOVE_ALL : | |
1239 | GLOBAL_ATU_OP_FLUSH_MOVE_NON_STATIC; | |
1240 | } | |
1241 | ||
158bc065 | 1242 | return _mv88e6xxx_atu_cmd(ps, entry->fid, op); |
7fb5e755 VD |
1243 | } |
1244 | ||
158bc065 AL |
1245 | static int _mv88e6xxx_atu_flush(struct mv88e6xxx_priv_state *ps, |
1246 | u16 fid, bool static_too) | |
7fb5e755 VD |
1247 | { |
1248 | struct mv88e6xxx_atu_entry entry = { | |
1249 | .fid = fid, | |
1250 | .state = 0, /* EntryState bits must be 0 */ | |
1251 | }; | |
70cc99d1 | 1252 | |
158bc065 | 1253 | return _mv88e6xxx_atu_flush_move(ps, &entry, static_too); |
7fb5e755 VD |
1254 | } |
1255 | ||
158bc065 AL |
1256 | static int _mv88e6xxx_atu_move(struct mv88e6xxx_priv_state *ps, u16 fid, |
1257 | int from_port, int to_port, bool static_too) | |
9f4d55d2 VD |
1258 | { |
1259 | struct mv88e6xxx_atu_entry entry = { | |
1260 | .trunk = false, | |
1261 | .fid = fid, | |
1262 | }; | |
1263 | ||
1264 | /* EntryState bits must be 0xF */ | |
1265 | entry.state = GLOBAL_ATU_DATA_STATE_MASK; | |
1266 | ||
1267 | /* ToPort and FromPort are respectively in PortVec bits 7:4 and 3:0 */ | |
1268 | entry.portv_trunkid = (to_port & 0x0f) << 4; | |
1269 | entry.portv_trunkid |= from_port & 0x0f; | |
1270 | ||
158bc065 | 1271 | return _mv88e6xxx_atu_flush_move(ps, &entry, static_too); |
9f4d55d2 VD |
1272 | } |
1273 | ||
158bc065 AL |
1274 | static int _mv88e6xxx_atu_remove(struct mv88e6xxx_priv_state *ps, u16 fid, |
1275 | int port, bool static_too) | |
9f4d55d2 VD |
1276 | { |
1277 | /* Destination port 0xF means remove the entries */ | |
158bc065 | 1278 | return _mv88e6xxx_atu_move(ps, fid, port, 0x0f, static_too); |
9f4d55d2 VD |
1279 | } |
1280 | ||
2d9deae4 VD |
1281 | static const char * const mv88e6xxx_port_state_names[] = { |
1282 | [PORT_CONTROL_STATE_DISABLED] = "Disabled", | |
1283 | [PORT_CONTROL_STATE_BLOCKING] = "Blocking/Listening", | |
1284 | [PORT_CONTROL_STATE_LEARNING] = "Learning", | |
1285 | [PORT_CONTROL_STATE_FORWARDING] = "Forwarding", | |
1286 | }; | |
1287 | ||
158bc065 AL |
1288 | static int _mv88e6xxx_port_state(struct mv88e6xxx_priv_state *ps, int port, |
1289 | u8 state) | |
facd95b2 | 1290 | { |
158bc065 | 1291 | struct dsa_switch *ds = ps->ds; |
c3ffe6d2 | 1292 | int reg, ret = 0; |
facd95b2 GR |
1293 | u8 oldstate; |
1294 | ||
158bc065 | 1295 | reg = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_CONTROL); |
2d9deae4 VD |
1296 | if (reg < 0) |
1297 | return reg; | |
facd95b2 | 1298 | |
cca8b133 | 1299 | oldstate = reg & PORT_CONTROL_STATE_MASK; |
2d9deae4 | 1300 | |
facd95b2 GR |
1301 | if (oldstate != state) { |
1302 | /* Flush forwarding database if we're moving a port | |
1303 | * from Learning or Forwarding state to Disabled or | |
1304 | * Blocking or Listening state. | |
1305 | */ | |
2d9deae4 VD |
1306 | if ((oldstate == PORT_CONTROL_STATE_LEARNING || |
1307 | oldstate == PORT_CONTROL_STATE_FORWARDING) | |
1308 | && (state == PORT_CONTROL_STATE_DISABLED || | |
1309 | state == PORT_CONTROL_STATE_BLOCKING)) { | |
158bc065 | 1310 | ret = _mv88e6xxx_atu_remove(ps, 0, port, false); |
facd95b2 | 1311 | if (ret) |
2d9deae4 | 1312 | return ret; |
facd95b2 | 1313 | } |
2d9deae4 | 1314 | |
cca8b133 | 1315 | reg = (reg & ~PORT_CONTROL_STATE_MASK) | state; |
158bc065 | 1316 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_CONTROL, |
cca8b133 | 1317 | reg); |
2d9deae4 VD |
1318 | if (ret) |
1319 | return ret; | |
1320 | ||
1321 | netdev_dbg(ds->ports[port], "PortState %s (was %s)\n", | |
1322 | mv88e6xxx_port_state_names[state], | |
1323 | mv88e6xxx_port_state_names[oldstate]); | |
facd95b2 GR |
1324 | } |
1325 | ||
facd95b2 GR |
1326 | return ret; |
1327 | } | |
1328 | ||
158bc065 AL |
1329 | static int _mv88e6xxx_port_based_vlan_map(struct mv88e6xxx_priv_state *ps, |
1330 | int port) | |
facd95b2 | 1331 | { |
b7666efe | 1332 | struct net_device *bridge = ps->ports[port].bridge_dev; |
009a2b98 | 1333 | const u16 mask = (1 << ps->info->num_ports) - 1; |
158bc065 | 1334 | struct dsa_switch *ds = ps->ds; |
b7666efe | 1335 | u16 output_ports = 0; |
ede8098d | 1336 | int reg; |
b7666efe VD |
1337 | int i; |
1338 | ||
1339 | /* allow CPU port or DSA link(s) to send frames to every port */ | |
1340 | if (dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port)) { | |
1341 | output_ports = mask; | |
1342 | } else { | |
009a2b98 | 1343 | for (i = 0; i < ps->info->num_ports; ++i) { |
b7666efe VD |
1344 | /* allow sending frames to every group member */ |
1345 | if (bridge && ps->ports[i].bridge_dev == bridge) | |
1346 | output_ports |= BIT(i); | |
1347 | ||
1348 | /* allow sending frames to CPU port and DSA link(s) */ | |
1349 | if (dsa_is_cpu_port(ds, i) || dsa_is_dsa_port(ds, i)) | |
1350 | output_ports |= BIT(i); | |
1351 | } | |
1352 | } | |
1353 | ||
1354 | /* prevent frames from going back out of the port they came in on */ | |
1355 | output_ports &= ~BIT(port); | |
facd95b2 | 1356 | |
158bc065 | 1357 | reg = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_BASE_VLAN); |
ede8098d VD |
1358 | if (reg < 0) |
1359 | return reg; | |
facd95b2 | 1360 | |
ede8098d VD |
1361 | reg &= ~mask; |
1362 | reg |= output_ports & mask; | |
facd95b2 | 1363 | |
158bc065 | 1364 | return _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_BASE_VLAN, reg); |
facd95b2 GR |
1365 | } |
1366 | ||
43c44a9f | 1367 | void mv88e6xxx_port_stp_state_set(struct dsa_switch *ds, int port, u8 state) |
facd95b2 GR |
1368 | { |
1369 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
1370 | int stp_state; | |
1371 | ||
936f234a VD |
1372 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_PORTSTATE)) |
1373 | return; | |
1374 | ||
facd95b2 GR |
1375 | switch (state) { |
1376 | case BR_STATE_DISABLED: | |
cca8b133 | 1377 | stp_state = PORT_CONTROL_STATE_DISABLED; |
facd95b2 GR |
1378 | break; |
1379 | case BR_STATE_BLOCKING: | |
1380 | case BR_STATE_LISTENING: | |
cca8b133 | 1381 | stp_state = PORT_CONTROL_STATE_BLOCKING; |
facd95b2 GR |
1382 | break; |
1383 | case BR_STATE_LEARNING: | |
cca8b133 | 1384 | stp_state = PORT_CONTROL_STATE_LEARNING; |
facd95b2 GR |
1385 | break; |
1386 | case BR_STATE_FORWARDING: | |
1387 | default: | |
cca8b133 | 1388 | stp_state = PORT_CONTROL_STATE_FORWARDING; |
facd95b2 GR |
1389 | break; |
1390 | } | |
1391 | ||
43c44a9f | 1392 | /* mv88e6xxx_port_stp_state_set may be called with softirqs disabled, |
facd95b2 GR |
1393 | * so we can not update the port state directly but need to schedule it. |
1394 | */ | |
d715fa64 | 1395 | ps->ports[port].state = stp_state; |
2d9deae4 | 1396 | set_bit(port, ps->port_state_update_mask); |
facd95b2 | 1397 | schedule_work(&ps->bridge_work); |
facd95b2 GR |
1398 | } |
1399 | ||
158bc065 AL |
1400 | static int _mv88e6xxx_port_pvid(struct mv88e6xxx_priv_state *ps, int port, |
1401 | u16 *new, u16 *old) | |
76e398a6 | 1402 | { |
158bc065 | 1403 | struct dsa_switch *ds = ps->ds; |
5da96031 | 1404 | u16 pvid; |
76e398a6 VD |
1405 | int ret; |
1406 | ||
158bc065 | 1407 | ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_DEFAULT_VLAN); |
76e398a6 VD |
1408 | if (ret < 0) |
1409 | return ret; | |
1410 | ||
5da96031 VD |
1411 | pvid = ret & PORT_DEFAULT_VLAN_MASK; |
1412 | ||
1413 | if (new) { | |
1414 | ret &= ~PORT_DEFAULT_VLAN_MASK; | |
1415 | ret |= *new & PORT_DEFAULT_VLAN_MASK; | |
1416 | ||
158bc065 | 1417 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), |
5da96031 VD |
1418 | PORT_DEFAULT_VLAN, ret); |
1419 | if (ret < 0) | |
1420 | return ret; | |
1421 | ||
1422 | netdev_dbg(ds->ports[port], "DefaultVID %d (was %d)\n", *new, | |
1423 | pvid); | |
1424 | } | |
1425 | ||
1426 | if (old) | |
1427 | *old = pvid; | |
76e398a6 VD |
1428 | |
1429 | return 0; | |
1430 | } | |
1431 | ||
158bc065 AL |
1432 | static int _mv88e6xxx_port_pvid_get(struct mv88e6xxx_priv_state *ps, |
1433 | int port, u16 *pvid) | |
5da96031 | 1434 | { |
158bc065 | 1435 | return _mv88e6xxx_port_pvid(ps, port, NULL, pvid); |
5da96031 VD |
1436 | } |
1437 | ||
158bc065 AL |
1438 | static int _mv88e6xxx_port_pvid_set(struct mv88e6xxx_priv_state *ps, |
1439 | int port, u16 pvid) | |
0d3b33e6 | 1440 | { |
158bc065 | 1441 | return _mv88e6xxx_port_pvid(ps, port, &pvid, NULL); |
0d3b33e6 VD |
1442 | } |
1443 | ||
158bc065 | 1444 | static int _mv88e6xxx_vtu_wait(struct mv88e6xxx_priv_state *ps) |
6b17e864 | 1445 | { |
158bc065 | 1446 | return _mv88e6xxx_wait(ps, REG_GLOBAL, GLOBAL_VTU_OP, |
6b17e864 VD |
1447 | GLOBAL_VTU_OP_BUSY); |
1448 | } | |
1449 | ||
158bc065 | 1450 | static int _mv88e6xxx_vtu_cmd(struct mv88e6xxx_priv_state *ps, u16 op) |
6b17e864 VD |
1451 | { |
1452 | int ret; | |
1453 | ||
158bc065 | 1454 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_VTU_OP, op); |
6b17e864 VD |
1455 | if (ret < 0) |
1456 | return ret; | |
1457 | ||
158bc065 | 1458 | return _mv88e6xxx_vtu_wait(ps); |
6b17e864 VD |
1459 | } |
1460 | ||
158bc065 | 1461 | static int _mv88e6xxx_vtu_stu_flush(struct mv88e6xxx_priv_state *ps) |
6b17e864 VD |
1462 | { |
1463 | int ret; | |
1464 | ||
158bc065 | 1465 | ret = _mv88e6xxx_vtu_wait(ps); |
6b17e864 VD |
1466 | if (ret < 0) |
1467 | return ret; | |
1468 | ||
158bc065 | 1469 | return _mv88e6xxx_vtu_cmd(ps, GLOBAL_VTU_OP_FLUSH_ALL); |
6b17e864 VD |
1470 | } |
1471 | ||
158bc065 | 1472 | static int _mv88e6xxx_vtu_stu_data_read(struct mv88e6xxx_priv_state *ps, |
b8fee957 VD |
1473 | struct mv88e6xxx_vtu_stu_entry *entry, |
1474 | unsigned int nibble_offset) | |
1475 | { | |
b8fee957 VD |
1476 | u16 regs[3]; |
1477 | int i; | |
1478 | int ret; | |
1479 | ||
1480 | for (i = 0; i < 3; ++i) { | |
158bc065 | 1481 | ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, |
b8fee957 VD |
1482 | GLOBAL_VTU_DATA_0_3 + i); |
1483 | if (ret < 0) | |
1484 | return ret; | |
1485 | ||
1486 | regs[i] = ret; | |
1487 | } | |
1488 | ||
009a2b98 | 1489 | for (i = 0; i < ps->info->num_ports; ++i) { |
b8fee957 VD |
1490 | unsigned int shift = (i % 4) * 4 + nibble_offset; |
1491 | u16 reg = regs[i / 4]; | |
1492 | ||
1493 | entry->data[i] = (reg >> shift) & GLOBAL_VTU_STU_DATA_MASK; | |
1494 | } | |
1495 | ||
1496 | return 0; | |
1497 | } | |
1498 | ||
158bc065 | 1499 | static int _mv88e6xxx_vtu_stu_data_write(struct mv88e6xxx_priv_state *ps, |
7dad08d7 VD |
1500 | struct mv88e6xxx_vtu_stu_entry *entry, |
1501 | unsigned int nibble_offset) | |
1502 | { | |
7dad08d7 VD |
1503 | u16 regs[3] = { 0 }; |
1504 | int i; | |
1505 | int ret; | |
1506 | ||
009a2b98 | 1507 | for (i = 0; i < ps->info->num_ports; ++i) { |
7dad08d7 VD |
1508 | unsigned int shift = (i % 4) * 4 + nibble_offset; |
1509 | u8 data = entry->data[i]; | |
1510 | ||
1511 | regs[i / 4] |= (data & GLOBAL_VTU_STU_DATA_MASK) << shift; | |
1512 | } | |
1513 | ||
1514 | for (i = 0; i < 3; ++i) { | |
158bc065 | 1515 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, |
7dad08d7 VD |
1516 | GLOBAL_VTU_DATA_0_3 + i, regs[i]); |
1517 | if (ret < 0) | |
1518 | return ret; | |
1519 | } | |
1520 | ||
1521 | return 0; | |
1522 | } | |
1523 | ||
158bc065 | 1524 | static int _mv88e6xxx_vtu_vid_write(struct mv88e6xxx_priv_state *ps, u16 vid) |
36d04ba1 | 1525 | { |
158bc065 | 1526 | return _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_VTU_VID, |
36d04ba1 VD |
1527 | vid & GLOBAL_VTU_VID_MASK); |
1528 | } | |
1529 | ||
158bc065 | 1530 | static int _mv88e6xxx_vtu_getnext(struct mv88e6xxx_priv_state *ps, |
b8fee957 VD |
1531 | struct mv88e6xxx_vtu_stu_entry *entry) |
1532 | { | |
1533 | struct mv88e6xxx_vtu_stu_entry next = { 0 }; | |
1534 | int ret; | |
1535 | ||
158bc065 | 1536 | ret = _mv88e6xxx_vtu_wait(ps); |
b8fee957 VD |
1537 | if (ret < 0) |
1538 | return ret; | |
1539 | ||
158bc065 | 1540 | ret = _mv88e6xxx_vtu_cmd(ps, GLOBAL_VTU_OP_VTU_GET_NEXT); |
b8fee957 VD |
1541 | if (ret < 0) |
1542 | return ret; | |
1543 | ||
158bc065 | 1544 | ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_VTU_VID); |
b8fee957 VD |
1545 | if (ret < 0) |
1546 | return ret; | |
1547 | ||
1548 | next.vid = ret & GLOBAL_VTU_VID_MASK; | |
1549 | next.valid = !!(ret & GLOBAL_VTU_VID_VALID); | |
1550 | ||
1551 | if (next.valid) { | |
158bc065 | 1552 | ret = _mv88e6xxx_vtu_stu_data_read(ps, &next, 0); |
b8fee957 VD |
1553 | if (ret < 0) |
1554 | return ret; | |
1555 | ||
158bc065 AL |
1556 | if (mv88e6xxx_has_fid_reg(ps)) { |
1557 | ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, | |
b8fee957 VD |
1558 | GLOBAL_VTU_FID); |
1559 | if (ret < 0) | |
1560 | return ret; | |
1561 | ||
1562 | next.fid = ret & GLOBAL_VTU_FID_MASK; | |
158bc065 | 1563 | } else if (mv88e6xxx_num_databases(ps) == 256) { |
11ea809f VD |
1564 | /* VTU DBNum[7:4] are located in VTU Operation 11:8, and |
1565 | * VTU DBNum[3:0] are located in VTU Operation 3:0 | |
1566 | */ | |
158bc065 | 1567 | ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, |
11ea809f VD |
1568 | GLOBAL_VTU_OP); |
1569 | if (ret < 0) | |
1570 | return ret; | |
1571 | ||
1572 | next.fid = (ret & 0xf00) >> 4; | |
1573 | next.fid |= ret & 0xf; | |
2e7bd5ef | 1574 | } |
b8fee957 | 1575 | |
158bc065 AL |
1576 | if (mv88e6xxx_has_stu(ps)) { |
1577 | ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, | |
b8fee957 VD |
1578 | GLOBAL_VTU_SID); |
1579 | if (ret < 0) | |
1580 | return ret; | |
1581 | ||
1582 | next.sid = ret & GLOBAL_VTU_SID_MASK; | |
1583 | } | |
1584 | } | |
1585 | ||
1586 | *entry = next; | |
1587 | return 0; | |
1588 | } | |
1589 | ||
ceff5eff VD |
1590 | int mv88e6xxx_port_vlan_dump(struct dsa_switch *ds, int port, |
1591 | struct switchdev_obj_port_vlan *vlan, | |
1592 | int (*cb)(struct switchdev_obj *obj)) | |
1593 | { | |
1594 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
1595 | struct mv88e6xxx_vtu_stu_entry next; | |
1596 | u16 pvid; | |
1597 | int err; | |
1598 | ||
54d77b5b VD |
1599 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_VTU)) |
1600 | return -EOPNOTSUPP; | |
1601 | ||
ceff5eff VD |
1602 | mutex_lock(&ps->smi_mutex); |
1603 | ||
158bc065 | 1604 | err = _mv88e6xxx_port_pvid_get(ps, port, &pvid); |
ceff5eff VD |
1605 | if (err) |
1606 | goto unlock; | |
1607 | ||
158bc065 | 1608 | err = _mv88e6xxx_vtu_vid_write(ps, GLOBAL_VTU_VID_MASK); |
ceff5eff VD |
1609 | if (err) |
1610 | goto unlock; | |
1611 | ||
1612 | do { | |
158bc065 | 1613 | err = _mv88e6xxx_vtu_getnext(ps, &next); |
ceff5eff VD |
1614 | if (err) |
1615 | break; | |
1616 | ||
1617 | if (!next.valid) | |
1618 | break; | |
1619 | ||
1620 | if (next.data[port] == GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER) | |
1621 | continue; | |
1622 | ||
1623 | /* reinit and dump this VLAN obj */ | |
1624 | vlan->vid_begin = vlan->vid_end = next.vid; | |
1625 | vlan->flags = 0; | |
1626 | ||
1627 | if (next.data[port] == GLOBAL_VTU_DATA_MEMBER_TAG_UNTAGGED) | |
1628 | vlan->flags |= BRIDGE_VLAN_INFO_UNTAGGED; | |
1629 | ||
1630 | if (next.vid == pvid) | |
1631 | vlan->flags |= BRIDGE_VLAN_INFO_PVID; | |
1632 | ||
1633 | err = cb(&vlan->obj); | |
1634 | if (err) | |
1635 | break; | |
1636 | } while (next.vid < GLOBAL_VTU_VID_MASK); | |
1637 | ||
1638 | unlock: | |
1639 | mutex_unlock(&ps->smi_mutex); | |
1640 | ||
1641 | return err; | |
1642 | } | |
1643 | ||
158bc065 | 1644 | static int _mv88e6xxx_vtu_loadpurge(struct mv88e6xxx_priv_state *ps, |
7dad08d7 VD |
1645 | struct mv88e6xxx_vtu_stu_entry *entry) |
1646 | { | |
11ea809f | 1647 | u16 op = GLOBAL_VTU_OP_VTU_LOAD_PURGE; |
7dad08d7 VD |
1648 | u16 reg = 0; |
1649 | int ret; | |
1650 | ||
158bc065 | 1651 | ret = _mv88e6xxx_vtu_wait(ps); |
7dad08d7 VD |
1652 | if (ret < 0) |
1653 | return ret; | |
1654 | ||
1655 | if (!entry->valid) | |
1656 | goto loadpurge; | |
1657 | ||
1658 | /* Write port member tags */ | |
158bc065 | 1659 | ret = _mv88e6xxx_vtu_stu_data_write(ps, entry, 0); |
7dad08d7 VD |
1660 | if (ret < 0) |
1661 | return ret; | |
1662 | ||
158bc065 | 1663 | if (mv88e6xxx_has_stu(ps)) { |
7dad08d7 | 1664 | reg = entry->sid & GLOBAL_VTU_SID_MASK; |
158bc065 | 1665 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_VTU_SID, reg); |
7dad08d7 VD |
1666 | if (ret < 0) |
1667 | return ret; | |
b426e5f7 | 1668 | } |
7dad08d7 | 1669 | |
158bc065 | 1670 | if (mv88e6xxx_has_fid_reg(ps)) { |
7dad08d7 | 1671 | reg = entry->fid & GLOBAL_VTU_FID_MASK; |
158bc065 | 1672 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_VTU_FID, reg); |
7dad08d7 VD |
1673 | if (ret < 0) |
1674 | return ret; | |
158bc065 | 1675 | } else if (mv88e6xxx_num_databases(ps) == 256) { |
11ea809f VD |
1676 | /* VTU DBNum[7:4] are located in VTU Operation 11:8, and |
1677 | * VTU DBNum[3:0] are located in VTU Operation 3:0 | |
1678 | */ | |
1679 | op |= (entry->fid & 0xf0) << 8; | |
1680 | op |= entry->fid & 0xf; | |
7dad08d7 VD |
1681 | } |
1682 | ||
1683 | reg = GLOBAL_VTU_VID_VALID; | |
1684 | loadpurge: | |
1685 | reg |= entry->vid & GLOBAL_VTU_VID_MASK; | |
158bc065 | 1686 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_VTU_VID, reg); |
7dad08d7 VD |
1687 | if (ret < 0) |
1688 | return ret; | |
1689 | ||
158bc065 | 1690 | return _mv88e6xxx_vtu_cmd(ps, op); |
7dad08d7 VD |
1691 | } |
1692 | ||
158bc065 | 1693 | static int _mv88e6xxx_stu_getnext(struct mv88e6xxx_priv_state *ps, u8 sid, |
0d3b33e6 VD |
1694 | struct mv88e6xxx_vtu_stu_entry *entry) |
1695 | { | |
1696 | struct mv88e6xxx_vtu_stu_entry next = { 0 }; | |
1697 | int ret; | |
1698 | ||
158bc065 | 1699 | ret = _mv88e6xxx_vtu_wait(ps); |
0d3b33e6 VD |
1700 | if (ret < 0) |
1701 | return ret; | |
1702 | ||
158bc065 | 1703 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_VTU_SID, |
0d3b33e6 VD |
1704 | sid & GLOBAL_VTU_SID_MASK); |
1705 | if (ret < 0) | |
1706 | return ret; | |
1707 | ||
158bc065 | 1708 | ret = _mv88e6xxx_vtu_cmd(ps, GLOBAL_VTU_OP_STU_GET_NEXT); |
0d3b33e6 VD |
1709 | if (ret < 0) |
1710 | return ret; | |
1711 | ||
158bc065 | 1712 | ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_VTU_SID); |
0d3b33e6 VD |
1713 | if (ret < 0) |
1714 | return ret; | |
1715 | ||
1716 | next.sid = ret & GLOBAL_VTU_SID_MASK; | |
1717 | ||
158bc065 | 1718 | ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_VTU_VID); |
0d3b33e6 VD |
1719 | if (ret < 0) |
1720 | return ret; | |
1721 | ||
1722 | next.valid = !!(ret & GLOBAL_VTU_VID_VALID); | |
1723 | ||
1724 | if (next.valid) { | |
158bc065 | 1725 | ret = _mv88e6xxx_vtu_stu_data_read(ps, &next, 2); |
0d3b33e6 VD |
1726 | if (ret < 0) |
1727 | return ret; | |
1728 | } | |
1729 | ||
1730 | *entry = next; | |
1731 | return 0; | |
1732 | } | |
1733 | ||
158bc065 | 1734 | static int _mv88e6xxx_stu_loadpurge(struct mv88e6xxx_priv_state *ps, |
0d3b33e6 VD |
1735 | struct mv88e6xxx_vtu_stu_entry *entry) |
1736 | { | |
1737 | u16 reg = 0; | |
1738 | int ret; | |
1739 | ||
158bc065 | 1740 | ret = _mv88e6xxx_vtu_wait(ps); |
0d3b33e6 VD |
1741 | if (ret < 0) |
1742 | return ret; | |
1743 | ||
1744 | if (!entry->valid) | |
1745 | goto loadpurge; | |
1746 | ||
1747 | /* Write port states */ | |
158bc065 | 1748 | ret = _mv88e6xxx_vtu_stu_data_write(ps, entry, 2); |
0d3b33e6 VD |
1749 | if (ret < 0) |
1750 | return ret; | |
1751 | ||
1752 | reg = GLOBAL_VTU_VID_VALID; | |
1753 | loadpurge: | |
158bc065 | 1754 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_VTU_VID, reg); |
0d3b33e6 VD |
1755 | if (ret < 0) |
1756 | return ret; | |
1757 | ||
1758 | reg = entry->sid & GLOBAL_VTU_SID_MASK; | |
158bc065 | 1759 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_VTU_SID, reg); |
0d3b33e6 VD |
1760 | if (ret < 0) |
1761 | return ret; | |
1762 | ||
158bc065 | 1763 | return _mv88e6xxx_vtu_cmd(ps, GLOBAL_VTU_OP_STU_LOAD_PURGE); |
0d3b33e6 VD |
1764 | } |
1765 | ||
158bc065 AL |
1766 | static int _mv88e6xxx_port_fid(struct mv88e6xxx_priv_state *ps, int port, |
1767 | u16 *new, u16 *old) | |
2db9ce1f | 1768 | { |
158bc065 | 1769 | struct dsa_switch *ds = ps->ds; |
f74df0be | 1770 | u16 upper_mask; |
2db9ce1f VD |
1771 | u16 fid; |
1772 | int ret; | |
1773 | ||
158bc065 | 1774 | if (mv88e6xxx_num_databases(ps) == 4096) |
f74df0be | 1775 | upper_mask = 0xff; |
158bc065 | 1776 | else if (mv88e6xxx_num_databases(ps) == 256) |
11ea809f | 1777 | upper_mask = 0xf; |
f74df0be VD |
1778 | else |
1779 | return -EOPNOTSUPP; | |
1780 | ||
2db9ce1f | 1781 | /* Port's default FID bits 3:0 are located in reg 0x06, offset 12 */ |
158bc065 | 1782 | ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_BASE_VLAN); |
2db9ce1f VD |
1783 | if (ret < 0) |
1784 | return ret; | |
1785 | ||
1786 | fid = (ret & PORT_BASE_VLAN_FID_3_0_MASK) >> 12; | |
1787 | ||
1788 | if (new) { | |
1789 | ret &= ~PORT_BASE_VLAN_FID_3_0_MASK; | |
1790 | ret |= (*new << 12) & PORT_BASE_VLAN_FID_3_0_MASK; | |
1791 | ||
158bc065 | 1792 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_BASE_VLAN, |
2db9ce1f VD |
1793 | ret); |
1794 | if (ret < 0) | |
1795 | return ret; | |
1796 | } | |
1797 | ||
1798 | /* Port's default FID bits 11:4 are located in reg 0x05, offset 0 */ | |
158bc065 | 1799 | ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_CONTROL_1); |
2db9ce1f VD |
1800 | if (ret < 0) |
1801 | return ret; | |
1802 | ||
f74df0be | 1803 | fid |= (ret & upper_mask) << 4; |
2db9ce1f VD |
1804 | |
1805 | if (new) { | |
f74df0be VD |
1806 | ret &= ~upper_mask; |
1807 | ret |= (*new >> 4) & upper_mask; | |
2db9ce1f | 1808 | |
158bc065 | 1809 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_CONTROL_1, |
2db9ce1f VD |
1810 | ret); |
1811 | if (ret < 0) | |
1812 | return ret; | |
1813 | ||
1814 | netdev_dbg(ds->ports[port], "FID %d (was %d)\n", *new, fid); | |
1815 | } | |
1816 | ||
1817 | if (old) | |
1818 | *old = fid; | |
1819 | ||
1820 | return 0; | |
1821 | } | |
1822 | ||
158bc065 AL |
1823 | static int _mv88e6xxx_port_fid_get(struct mv88e6xxx_priv_state *ps, |
1824 | int port, u16 *fid) | |
2db9ce1f | 1825 | { |
158bc065 | 1826 | return _mv88e6xxx_port_fid(ps, port, NULL, fid); |
2db9ce1f VD |
1827 | } |
1828 | ||
158bc065 AL |
1829 | static int _mv88e6xxx_port_fid_set(struct mv88e6xxx_priv_state *ps, |
1830 | int port, u16 fid) | |
2db9ce1f | 1831 | { |
158bc065 | 1832 | return _mv88e6xxx_port_fid(ps, port, &fid, NULL); |
2db9ce1f VD |
1833 | } |
1834 | ||
158bc065 | 1835 | static int _mv88e6xxx_fid_new(struct mv88e6xxx_priv_state *ps, u16 *fid) |
3285f9e8 VD |
1836 | { |
1837 | DECLARE_BITMAP(fid_bitmap, MV88E6XXX_N_FID); | |
1838 | struct mv88e6xxx_vtu_stu_entry vlan; | |
2db9ce1f | 1839 | int i, err; |
3285f9e8 VD |
1840 | |
1841 | bitmap_zero(fid_bitmap, MV88E6XXX_N_FID); | |
1842 | ||
2db9ce1f | 1843 | /* Set every FID bit used by the (un)bridged ports */ |
009a2b98 | 1844 | for (i = 0; i < ps->info->num_ports; ++i) { |
158bc065 | 1845 | err = _mv88e6xxx_port_fid_get(ps, i, fid); |
2db9ce1f VD |
1846 | if (err) |
1847 | return err; | |
1848 | ||
1849 | set_bit(*fid, fid_bitmap); | |
1850 | } | |
1851 | ||
3285f9e8 | 1852 | /* Set every FID bit used by the VLAN entries */ |
158bc065 | 1853 | err = _mv88e6xxx_vtu_vid_write(ps, GLOBAL_VTU_VID_MASK); |
3285f9e8 VD |
1854 | if (err) |
1855 | return err; | |
1856 | ||
1857 | do { | |
158bc065 | 1858 | err = _mv88e6xxx_vtu_getnext(ps, &vlan); |
3285f9e8 VD |
1859 | if (err) |
1860 | return err; | |
1861 | ||
1862 | if (!vlan.valid) | |
1863 | break; | |
1864 | ||
1865 | set_bit(vlan.fid, fid_bitmap); | |
1866 | } while (vlan.vid < GLOBAL_VTU_VID_MASK); | |
1867 | ||
1868 | /* The reset value 0x000 is used to indicate that multiple address | |
1869 | * databases are not needed. Return the next positive available. | |
1870 | */ | |
1871 | *fid = find_next_zero_bit(fid_bitmap, MV88E6XXX_N_FID, 1); | |
158bc065 | 1872 | if (unlikely(*fid >= mv88e6xxx_num_databases(ps))) |
3285f9e8 VD |
1873 | return -ENOSPC; |
1874 | ||
1875 | /* Clear the database */ | |
158bc065 | 1876 | return _mv88e6xxx_atu_flush(ps, *fid, true); |
3285f9e8 VD |
1877 | } |
1878 | ||
158bc065 | 1879 | static int _mv88e6xxx_vtu_new(struct mv88e6xxx_priv_state *ps, u16 vid, |
2fb5ef09 | 1880 | struct mv88e6xxx_vtu_stu_entry *entry) |
0d3b33e6 | 1881 | { |
158bc065 | 1882 | struct dsa_switch *ds = ps->ds; |
0d3b33e6 VD |
1883 | struct mv88e6xxx_vtu_stu_entry vlan = { |
1884 | .valid = true, | |
1885 | .vid = vid, | |
1886 | }; | |
3285f9e8 VD |
1887 | int i, err; |
1888 | ||
158bc065 | 1889 | err = _mv88e6xxx_fid_new(ps, &vlan.fid); |
3285f9e8 VD |
1890 | if (err) |
1891 | return err; | |
0d3b33e6 | 1892 | |
3d131f07 | 1893 | /* exclude all ports except the CPU and DSA ports */ |
009a2b98 | 1894 | for (i = 0; i < ps->info->num_ports; ++i) |
3d131f07 VD |
1895 | vlan.data[i] = dsa_is_cpu_port(ds, i) || dsa_is_dsa_port(ds, i) |
1896 | ? GLOBAL_VTU_DATA_MEMBER_TAG_UNMODIFIED | |
1897 | : GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER; | |
0d3b33e6 | 1898 | |
158bc065 AL |
1899 | if (mv88e6xxx_6097_family(ps) || mv88e6xxx_6165_family(ps) || |
1900 | mv88e6xxx_6351_family(ps) || mv88e6xxx_6352_family(ps)) { | |
0d3b33e6 | 1901 | struct mv88e6xxx_vtu_stu_entry vstp; |
0d3b33e6 VD |
1902 | |
1903 | /* Adding a VTU entry requires a valid STU entry. As VSTP is not | |
1904 | * implemented, only one STU entry is needed to cover all VTU | |
1905 | * entries. Thus, validate the SID 0. | |
1906 | */ | |
1907 | vlan.sid = 0; | |
158bc065 | 1908 | err = _mv88e6xxx_stu_getnext(ps, GLOBAL_VTU_SID_MASK, &vstp); |
0d3b33e6 VD |
1909 | if (err) |
1910 | return err; | |
1911 | ||
1912 | if (vstp.sid != vlan.sid || !vstp.valid) { | |
1913 | memset(&vstp, 0, sizeof(vstp)); | |
1914 | vstp.valid = true; | |
1915 | vstp.sid = vlan.sid; | |
1916 | ||
158bc065 | 1917 | err = _mv88e6xxx_stu_loadpurge(ps, &vstp); |
0d3b33e6 VD |
1918 | if (err) |
1919 | return err; | |
1920 | } | |
0d3b33e6 VD |
1921 | } |
1922 | ||
1923 | *entry = vlan; | |
1924 | return 0; | |
1925 | } | |
1926 | ||
158bc065 | 1927 | static int _mv88e6xxx_vtu_get(struct mv88e6xxx_priv_state *ps, u16 vid, |
2fb5ef09 VD |
1928 | struct mv88e6xxx_vtu_stu_entry *entry, bool creat) |
1929 | { | |
1930 | int err; | |
1931 | ||
1932 | if (!vid) | |
1933 | return -EINVAL; | |
1934 | ||
158bc065 | 1935 | err = _mv88e6xxx_vtu_vid_write(ps, vid - 1); |
2fb5ef09 VD |
1936 | if (err) |
1937 | return err; | |
1938 | ||
158bc065 | 1939 | err = _mv88e6xxx_vtu_getnext(ps, entry); |
2fb5ef09 VD |
1940 | if (err) |
1941 | return err; | |
1942 | ||
1943 | if (entry->vid != vid || !entry->valid) { | |
1944 | if (!creat) | |
1945 | return -EOPNOTSUPP; | |
1946 | /* -ENOENT would've been more appropriate, but switchdev expects | |
1947 | * -EOPNOTSUPP to inform bridge about an eventual software VLAN. | |
1948 | */ | |
1949 | ||
158bc065 | 1950 | err = _mv88e6xxx_vtu_new(ps, vid, entry); |
2fb5ef09 VD |
1951 | } |
1952 | ||
1953 | return err; | |
1954 | } | |
1955 | ||
da9c359e VD |
1956 | static int mv88e6xxx_port_check_hw_vlan(struct dsa_switch *ds, int port, |
1957 | u16 vid_begin, u16 vid_end) | |
1958 | { | |
1959 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
1960 | struct mv88e6xxx_vtu_stu_entry vlan; | |
1961 | int i, err; | |
1962 | ||
1963 | if (!vid_begin) | |
1964 | return -EOPNOTSUPP; | |
1965 | ||
1966 | mutex_lock(&ps->smi_mutex); | |
1967 | ||
158bc065 | 1968 | err = _mv88e6xxx_vtu_vid_write(ps, vid_begin - 1); |
da9c359e VD |
1969 | if (err) |
1970 | goto unlock; | |
1971 | ||
1972 | do { | |
158bc065 | 1973 | err = _mv88e6xxx_vtu_getnext(ps, &vlan); |
da9c359e VD |
1974 | if (err) |
1975 | goto unlock; | |
1976 | ||
1977 | if (!vlan.valid) | |
1978 | break; | |
1979 | ||
1980 | if (vlan.vid > vid_end) | |
1981 | break; | |
1982 | ||
009a2b98 | 1983 | for (i = 0; i < ps->info->num_ports; ++i) { |
da9c359e VD |
1984 | if (dsa_is_dsa_port(ds, i) || dsa_is_cpu_port(ds, i)) |
1985 | continue; | |
1986 | ||
1987 | if (vlan.data[i] == | |
1988 | GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER) | |
1989 | continue; | |
1990 | ||
1991 | if (ps->ports[i].bridge_dev == | |
1992 | ps->ports[port].bridge_dev) | |
1993 | break; /* same bridge, check next VLAN */ | |
1994 | ||
1995 | netdev_warn(ds->ports[port], | |
1996 | "hardware VLAN %d already used by %s\n", | |
1997 | vlan.vid, | |
1998 | netdev_name(ps->ports[i].bridge_dev)); | |
1999 | err = -EOPNOTSUPP; | |
2000 | goto unlock; | |
2001 | } | |
2002 | } while (vlan.vid < vid_end); | |
2003 | ||
2004 | unlock: | |
2005 | mutex_unlock(&ps->smi_mutex); | |
2006 | ||
2007 | return err; | |
2008 | } | |
2009 | ||
214cdb99 VD |
2010 | static const char * const mv88e6xxx_port_8021q_mode_names[] = { |
2011 | [PORT_CONTROL_2_8021Q_DISABLED] = "Disabled", | |
2012 | [PORT_CONTROL_2_8021Q_FALLBACK] = "Fallback", | |
2013 | [PORT_CONTROL_2_8021Q_CHECK] = "Check", | |
2014 | [PORT_CONTROL_2_8021Q_SECURE] = "Secure", | |
2015 | }; | |
2016 | ||
2017 | int mv88e6xxx_port_vlan_filtering(struct dsa_switch *ds, int port, | |
2018 | bool vlan_filtering) | |
2019 | { | |
2020 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
2021 | u16 old, new = vlan_filtering ? PORT_CONTROL_2_8021Q_SECURE : | |
2022 | PORT_CONTROL_2_8021Q_DISABLED; | |
2023 | int ret; | |
2024 | ||
54d77b5b VD |
2025 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_VTU)) |
2026 | return -EOPNOTSUPP; | |
2027 | ||
214cdb99 VD |
2028 | mutex_lock(&ps->smi_mutex); |
2029 | ||
158bc065 | 2030 | ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_CONTROL_2); |
214cdb99 VD |
2031 | if (ret < 0) |
2032 | goto unlock; | |
2033 | ||
2034 | old = ret & PORT_CONTROL_2_8021Q_MASK; | |
2035 | ||
5220ef1e VD |
2036 | if (new != old) { |
2037 | ret &= ~PORT_CONTROL_2_8021Q_MASK; | |
2038 | ret |= new & PORT_CONTROL_2_8021Q_MASK; | |
214cdb99 | 2039 | |
158bc065 | 2040 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_CONTROL_2, |
5220ef1e VD |
2041 | ret); |
2042 | if (ret < 0) | |
2043 | goto unlock; | |
2044 | ||
2045 | netdev_dbg(ds->ports[port], "802.1Q Mode %s (was %s)\n", | |
2046 | mv88e6xxx_port_8021q_mode_names[new], | |
2047 | mv88e6xxx_port_8021q_mode_names[old]); | |
2048 | } | |
214cdb99 | 2049 | |
5220ef1e | 2050 | ret = 0; |
214cdb99 VD |
2051 | unlock: |
2052 | mutex_unlock(&ps->smi_mutex); | |
2053 | ||
2054 | return ret; | |
2055 | } | |
2056 | ||
76e398a6 VD |
2057 | int mv88e6xxx_port_vlan_prepare(struct dsa_switch *ds, int port, |
2058 | const struct switchdev_obj_port_vlan *vlan, | |
2059 | struct switchdev_trans *trans) | |
2060 | { | |
54d77b5b | 2061 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
da9c359e VD |
2062 | int err; |
2063 | ||
54d77b5b VD |
2064 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_VTU)) |
2065 | return -EOPNOTSUPP; | |
2066 | ||
da9c359e VD |
2067 | /* If the requested port doesn't belong to the same bridge as the VLAN |
2068 | * members, do not support it (yet) and fallback to software VLAN. | |
2069 | */ | |
2070 | err = mv88e6xxx_port_check_hw_vlan(ds, port, vlan->vid_begin, | |
2071 | vlan->vid_end); | |
2072 | if (err) | |
2073 | return err; | |
2074 | ||
76e398a6 VD |
2075 | /* We don't need any dynamic resource from the kernel (yet), |
2076 | * so skip the prepare phase. | |
2077 | */ | |
2078 | return 0; | |
2079 | } | |
2080 | ||
158bc065 AL |
2081 | static int _mv88e6xxx_port_vlan_add(struct mv88e6xxx_priv_state *ps, int port, |
2082 | u16 vid, bool untagged) | |
0d3b33e6 | 2083 | { |
0d3b33e6 VD |
2084 | struct mv88e6xxx_vtu_stu_entry vlan; |
2085 | int err; | |
2086 | ||
158bc065 | 2087 | err = _mv88e6xxx_vtu_get(ps, vid, &vlan, true); |
0d3b33e6 | 2088 | if (err) |
76e398a6 | 2089 | return err; |
0d3b33e6 | 2090 | |
0d3b33e6 VD |
2091 | vlan.data[port] = untagged ? |
2092 | GLOBAL_VTU_DATA_MEMBER_TAG_UNTAGGED : | |
2093 | GLOBAL_VTU_DATA_MEMBER_TAG_TAGGED; | |
2094 | ||
158bc065 | 2095 | return _mv88e6xxx_vtu_loadpurge(ps, &vlan); |
76e398a6 VD |
2096 | } |
2097 | ||
4d5770b3 VD |
2098 | void mv88e6xxx_port_vlan_add(struct dsa_switch *ds, int port, |
2099 | const struct switchdev_obj_port_vlan *vlan, | |
2100 | struct switchdev_trans *trans) | |
76e398a6 VD |
2101 | { |
2102 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
2103 | bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; | |
2104 | bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID; | |
2105 | u16 vid; | |
76e398a6 | 2106 | |
54d77b5b VD |
2107 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_VTU)) |
2108 | return; | |
2109 | ||
76e398a6 VD |
2110 | mutex_lock(&ps->smi_mutex); |
2111 | ||
4d5770b3 | 2112 | for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) |
158bc065 | 2113 | if (_mv88e6xxx_port_vlan_add(ps, port, vid, untagged)) |
4d5770b3 VD |
2114 | netdev_err(ds->ports[port], "failed to add VLAN %d%c\n", |
2115 | vid, untagged ? 'u' : 't'); | |
76e398a6 | 2116 | |
158bc065 | 2117 | if (pvid && _mv88e6xxx_port_pvid_set(ps, port, vlan->vid_end)) |
4d5770b3 VD |
2118 | netdev_err(ds->ports[port], "failed to set PVID %d\n", |
2119 | vlan->vid_end); | |
0d3b33e6 | 2120 | |
4d5770b3 | 2121 | mutex_unlock(&ps->smi_mutex); |
0d3b33e6 VD |
2122 | } |
2123 | ||
158bc065 AL |
2124 | static int _mv88e6xxx_port_vlan_del(struct mv88e6xxx_priv_state *ps, |
2125 | int port, u16 vid) | |
7dad08d7 | 2126 | { |
158bc065 | 2127 | struct dsa_switch *ds = ps->ds; |
7dad08d7 | 2128 | struct mv88e6xxx_vtu_stu_entry vlan; |
7dad08d7 VD |
2129 | int i, err; |
2130 | ||
158bc065 | 2131 | err = _mv88e6xxx_vtu_get(ps, vid, &vlan, false); |
7dad08d7 | 2132 | if (err) |
76e398a6 | 2133 | return err; |
7dad08d7 | 2134 | |
2fb5ef09 VD |
2135 | /* Tell switchdev if this VLAN is handled in software */ |
2136 | if (vlan.data[port] == GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER) | |
3c06f08b | 2137 | return -EOPNOTSUPP; |
7dad08d7 VD |
2138 | |
2139 | vlan.data[port] = GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER; | |
2140 | ||
2141 | /* keep the VLAN unless all ports are excluded */ | |
f02bdffc | 2142 | vlan.valid = false; |
009a2b98 | 2143 | for (i = 0; i < ps->info->num_ports; ++i) { |
3d131f07 | 2144 | if (dsa_is_cpu_port(ds, i) || dsa_is_dsa_port(ds, i)) |
7dad08d7 VD |
2145 | continue; |
2146 | ||
2147 | if (vlan.data[i] != GLOBAL_VTU_DATA_MEMBER_TAG_NON_MEMBER) { | |
f02bdffc | 2148 | vlan.valid = true; |
7dad08d7 VD |
2149 | break; |
2150 | } | |
2151 | } | |
2152 | ||
158bc065 | 2153 | err = _mv88e6xxx_vtu_loadpurge(ps, &vlan); |
76e398a6 VD |
2154 | if (err) |
2155 | return err; | |
2156 | ||
158bc065 | 2157 | return _mv88e6xxx_atu_remove(ps, vlan.fid, port, false); |
76e398a6 VD |
2158 | } |
2159 | ||
2160 | int mv88e6xxx_port_vlan_del(struct dsa_switch *ds, int port, | |
2161 | const struct switchdev_obj_port_vlan *vlan) | |
2162 | { | |
2163 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
2164 | u16 pvid, vid; | |
2165 | int err = 0; | |
2166 | ||
54d77b5b VD |
2167 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_VTU)) |
2168 | return -EOPNOTSUPP; | |
2169 | ||
76e398a6 VD |
2170 | mutex_lock(&ps->smi_mutex); |
2171 | ||
158bc065 | 2172 | err = _mv88e6xxx_port_pvid_get(ps, port, &pvid); |
7dad08d7 VD |
2173 | if (err) |
2174 | goto unlock; | |
2175 | ||
76e398a6 | 2176 | for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) { |
158bc065 | 2177 | err = _mv88e6xxx_port_vlan_del(ps, port, vid); |
76e398a6 VD |
2178 | if (err) |
2179 | goto unlock; | |
2180 | ||
2181 | if (vid == pvid) { | |
158bc065 | 2182 | err = _mv88e6xxx_port_pvid_set(ps, port, 0); |
76e398a6 VD |
2183 | if (err) |
2184 | goto unlock; | |
2185 | } | |
2186 | } | |
2187 | ||
7dad08d7 VD |
2188 | unlock: |
2189 | mutex_unlock(&ps->smi_mutex); | |
2190 | ||
2191 | return err; | |
2192 | } | |
2193 | ||
158bc065 | 2194 | static int _mv88e6xxx_atu_mac_write(struct mv88e6xxx_priv_state *ps, |
c5723ac5 | 2195 | const unsigned char *addr) |
defb05b9 GR |
2196 | { |
2197 | int i, ret; | |
2198 | ||
2199 | for (i = 0; i < 3; i++) { | |
cca8b133 | 2200 | ret = _mv88e6xxx_reg_write( |
158bc065 | 2201 | ps, REG_GLOBAL, GLOBAL_ATU_MAC_01 + i, |
cca8b133 | 2202 | (addr[i * 2] << 8) | addr[i * 2 + 1]); |
defb05b9 GR |
2203 | if (ret < 0) |
2204 | return ret; | |
2205 | } | |
2206 | ||
2207 | return 0; | |
2208 | } | |
2209 | ||
158bc065 AL |
2210 | static int _mv88e6xxx_atu_mac_read(struct mv88e6xxx_priv_state *ps, |
2211 | unsigned char *addr) | |
defb05b9 GR |
2212 | { |
2213 | int i, ret; | |
2214 | ||
2215 | for (i = 0; i < 3; i++) { | |
158bc065 | 2216 | ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, |
cca8b133 | 2217 | GLOBAL_ATU_MAC_01 + i); |
defb05b9 GR |
2218 | if (ret < 0) |
2219 | return ret; | |
2220 | addr[i * 2] = ret >> 8; | |
2221 | addr[i * 2 + 1] = ret & 0xff; | |
2222 | } | |
2223 | ||
2224 | return 0; | |
2225 | } | |
2226 | ||
158bc065 | 2227 | static int _mv88e6xxx_atu_load(struct mv88e6xxx_priv_state *ps, |
fd231c82 | 2228 | struct mv88e6xxx_atu_entry *entry) |
defb05b9 | 2229 | { |
6630e236 VD |
2230 | int ret; |
2231 | ||
158bc065 | 2232 | ret = _mv88e6xxx_atu_wait(ps); |
defb05b9 GR |
2233 | if (ret < 0) |
2234 | return ret; | |
2235 | ||
158bc065 | 2236 | ret = _mv88e6xxx_atu_mac_write(ps, entry->mac); |
defb05b9 GR |
2237 | if (ret < 0) |
2238 | return ret; | |
2239 | ||
158bc065 | 2240 | ret = _mv88e6xxx_atu_data_write(ps, entry); |
fd231c82 | 2241 | if (ret < 0) |
87820510 VD |
2242 | return ret; |
2243 | ||
158bc065 | 2244 | return _mv88e6xxx_atu_cmd(ps, entry->fid, GLOBAL_ATU_OP_LOAD_DB); |
fd231c82 | 2245 | } |
87820510 | 2246 | |
158bc065 | 2247 | static int _mv88e6xxx_port_fdb_load(struct mv88e6xxx_priv_state *ps, int port, |
fd231c82 VD |
2248 | const unsigned char *addr, u16 vid, |
2249 | u8 state) | |
2250 | { | |
2251 | struct mv88e6xxx_atu_entry entry = { 0 }; | |
3285f9e8 VD |
2252 | struct mv88e6xxx_vtu_stu_entry vlan; |
2253 | int err; | |
2254 | ||
2db9ce1f VD |
2255 | /* Null VLAN ID corresponds to the port private database */ |
2256 | if (vid == 0) | |
158bc065 | 2257 | err = _mv88e6xxx_port_fid_get(ps, port, &vlan.fid); |
2db9ce1f | 2258 | else |
158bc065 | 2259 | err = _mv88e6xxx_vtu_get(ps, vid, &vlan, false); |
3285f9e8 VD |
2260 | if (err) |
2261 | return err; | |
fd231c82 | 2262 | |
3285f9e8 | 2263 | entry.fid = vlan.fid; |
fd231c82 VD |
2264 | entry.state = state; |
2265 | ether_addr_copy(entry.mac, addr); | |
2266 | if (state != GLOBAL_ATU_DATA_STATE_UNUSED) { | |
2267 | entry.trunk = false; | |
2268 | entry.portv_trunkid = BIT(port); | |
2269 | } | |
2270 | ||
158bc065 | 2271 | return _mv88e6xxx_atu_load(ps, &entry); |
87820510 VD |
2272 | } |
2273 | ||
146a3206 VD |
2274 | int mv88e6xxx_port_fdb_prepare(struct dsa_switch *ds, int port, |
2275 | const struct switchdev_obj_port_fdb *fdb, | |
2276 | struct switchdev_trans *trans) | |
2277 | { | |
2672f825 VD |
2278 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
2279 | ||
2280 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_ATU)) | |
2281 | return -EOPNOTSUPP; | |
2282 | ||
146a3206 VD |
2283 | /* We don't need any dynamic resource from the kernel (yet), |
2284 | * so skip the prepare phase. | |
2285 | */ | |
2286 | return 0; | |
2287 | } | |
2288 | ||
8497aa61 VD |
2289 | void mv88e6xxx_port_fdb_add(struct dsa_switch *ds, int port, |
2290 | const struct switchdev_obj_port_fdb *fdb, | |
2291 | struct switchdev_trans *trans) | |
87820510 | 2292 | { |
1f36faf2 | 2293 | int state = is_multicast_ether_addr(fdb->addr) ? |
87820510 VD |
2294 | GLOBAL_ATU_DATA_STATE_MC_STATIC : |
2295 | GLOBAL_ATU_DATA_STATE_UC_STATIC; | |
cdf09697 | 2296 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
87820510 | 2297 | |
2672f825 VD |
2298 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_ATU)) |
2299 | return; | |
2300 | ||
87820510 | 2301 | mutex_lock(&ps->smi_mutex); |
158bc065 | 2302 | if (_mv88e6xxx_port_fdb_load(ps, port, fdb->addr, fdb->vid, state)) |
8497aa61 | 2303 | netdev_err(ds->ports[port], "failed to load MAC address\n"); |
87820510 | 2304 | mutex_unlock(&ps->smi_mutex); |
87820510 VD |
2305 | } |
2306 | ||
cdf09697 | 2307 | int mv88e6xxx_port_fdb_del(struct dsa_switch *ds, int port, |
8057b3e7 | 2308 | const struct switchdev_obj_port_fdb *fdb) |
87820510 VD |
2309 | { |
2310 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
87820510 VD |
2311 | int ret; |
2312 | ||
2672f825 VD |
2313 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_ATU)) |
2314 | return -EOPNOTSUPP; | |
2315 | ||
87820510 | 2316 | mutex_lock(&ps->smi_mutex); |
158bc065 | 2317 | ret = _mv88e6xxx_port_fdb_load(ps, port, fdb->addr, fdb->vid, |
cdf09697 | 2318 | GLOBAL_ATU_DATA_STATE_UNUSED); |
87820510 VD |
2319 | mutex_unlock(&ps->smi_mutex); |
2320 | ||
2321 | return ret; | |
2322 | } | |
2323 | ||
158bc065 | 2324 | static int _mv88e6xxx_atu_getnext(struct mv88e6xxx_priv_state *ps, u16 fid, |
1d194046 | 2325 | struct mv88e6xxx_atu_entry *entry) |
6630e236 | 2326 | { |
1d194046 VD |
2327 | struct mv88e6xxx_atu_entry next = { 0 }; |
2328 | int ret; | |
2329 | ||
2330 | next.fid = fid; | |
defb05b9 | 2331 | |
158bc065 | 2332 | ret = _mv88e6xxx_atu_wait(ps); |
cdf09697 DM |
2333 | if (ret < 0) |
2334 | return ret; | |
6630e236 | 2335 | |
158bc065 | 2336 | ret = _mv88e6xxx_atu_cmd(ps, fid, GLOBAL_ATU_OP_GET_NEXT_DB); |
1d194046 VD |
2337 | if (ret < 0) |
2338 | return ret; | |
6630e236 | 2339 | |
158bc065 | 2340 | ret = _mv88e6xxx_atu_mac_read(ps, next.mac); |
1d194046 VD |
2341 | if (ret < 0) |
2342 | return ret; | |
6630e236 | 2343 | |
158bc065 | 2344 | ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, GLOBAL_ATU_DATA); |
cdf09697 DM |
2345 | if (ret < 0) |
2346 | return ret; | |
6630e236 | 2347 | |
1d194046 VD |
2348 | next.state = ret & GLOBAL_ATU_DATA_STATE_MASK; |
2349 | if (next.state != GLOBAL_ATU_DATA_STATE_UNUSED) { | |
2350 | unsigned int mask, shift; | |
2351 | ||
2352 | if (ret & GLOBAL_ATU_DATA_TRUNK) { | |
2353 | next.trunk = true; | |
2354 | mask = GLOBAL_ATU_DATA_TRUNK_ID_MASK; | |
2355 | shift = GLOBAL_ATU_DATA_TRUNK_ID_SHIFT; | |
2356 | } else { | |
2357 | next.trunk = false; | |
2358 | mask = GLOBAL_ATU_DATA_PORT_VECTOR_MASK; | |
2359 | shift = GLOBAL_ATU_DATA_PORT_VECTOR_SHIFT; | |
2360 | } | |
2361 | ||
2362 | next.portv_trunkid = (ret & mask) >> shift; | |
2363 | } | |
cdf09697 | 2364 | |
1d194046 | 2365 | *entry = next; |
cdf09697 DM |
2366 | return 0; |
2367 | } | |
2368 | ||
158bc065 AL |
2369 | static int _mv88e6xxx_port_fdb_dump_one(struct mv88e6xxx_priv_state *ps, |
2370 | u16 fid, u16 vid, int port, | |
74b6ba0d VD |
2371 | struct switchdev_obj_port_fdb *fdb, |
2372 | int (*cb)(struct switchdev_obj *obj)) | |
2373 | { | |
2374 | struct mv88e6xxx_atu_entry addr = { | |
2375 | .mac = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }, | |
2376 | }; | |
2377 | int err; | |
2378 | ||
158bc065 | 2379 | err = _mv88e6xxx_atu_mac_write(ps, addr.mac); |
74b6ba0d VD |
2380 | if (err) |
2381 | return err; | |
2382 | ||
2383 | do { | |
158bc065 | 2384 | err = _mv88e6xxx_atu_getnext(ps, fid, &addr); |
74b6ba0d VD |
2385 | if (err) |
2386 | break; | |
2387 | ||
2388 | if (addr.state == GLOBAL_ATU_DATA_STATE_UNUSED) | |
2389 | break; | |
2390 | ||
2391 | if (!addr.trunk && addr.portv_trunkid & BIT(port)) { | |
2392 | bool is_static = addr.state == | |
2393 | (is_multicast_ether_addr(addr.mac) ? | |
2394 | GLOBAL_ATU_DATA_STATE_MC_STATIC : | |
2395 | GLOBAL_ATU_DATA_STATE_UC_STATIC); | |
2396 | ||
2397 | fdb->vid = vid; | |
2398 | ether_addr_copy(fdb->addr, addr.mac); | |
2399 | fdb->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE; | |
2400 | ||
2401 | err = cb(&fdb->obj); | |
2402 | if (err) | |
2403 | break; | |
2404 | } | |
2405 | } while (!is_broadcast_ether_addr(addr.mac)); | |
2406 | ||
2407 | return err; | |
2408 | } | |
2409 | ||
f33475bd VD |
2410 | int mv88e6xxx_port_fdb_dump(struct dsa_switch *ds, int port, |
2411 | struct switchdev_obj_port_fdb *fdb, | |
2412 | int (*cb)(struct switchdev_obj *obj)) | |
2413 | { | |
2414 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
2415 | struct mv88e6xxx_vtu_stu_entry vlan = { | |
2416 | .vid = GLOBAL_VTU_VID_MASK, /* all ones */ | |
2417 | }; | |
2db9ce1f | 2418 | u16 fid; |
f33475bd VD |
2419 | int err; |
2420 | ||
2672f825 VD |
2421 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_ATU)) |
2422 | return -EOPNOTSUPP; | |
2423 | ||
f33475bd VD |
2424 | mutex_lock(&ps->smi_mutex); |
2425 | ||
2db9ce1f | 2426 | /* Dump port's default Filtering Information Database (VLAN ID 0) */ |
158bc065 | 2427 | err = _mv88e6xxx_port_fid_get(ps, port, &fid); |
2db9ce1f VD |
2428 | if (err) |
2429 | goto unlock; | |
2430 | ||
158bc065 | 2431 | err = _mv88e6xxx_port_fdb_dump_one(ps, fid, 0, port, fdb, cb); |
2db9ce1f VD |
2432 | if (err) |
2433 | goto unlock; | |
2434 | ||
74b6ba0d | 2435 | /* Dump VLANs' Filtering Information Databases */ |
158bc065 | 2436 | err = _mv88e6xxx_vtu_vid_write(ps, vlan.vid); |
f33475bd VD |
2437 | if (err) |
2438 | goto unlock; | |
2439 | ||
2440 | do { | |
158bc065 | 2441 | err = _mv88e6xxx_vtu_getnext(ps, &vlan); |
f33475bd | 2442 | if (err) |
74b6ba0d | 2443 | break; |
f33475bd VD |
2444 | |
2445 | if (!vlan.valid) | |
2446 | break; | |
2447 | ||
158bc065 | 2448 | err = _mv88e6xxx_port_fdb_dump_one(ps, vlan.fid, vlan.vid, port, |
74b6ba0d | 2449 | fdb, cb); |
f33475bd | 2450 | if (err) |
74b6ba0d | 2451 | break; |
f33475bd VD |
2452 | } while (vlan.vid < GLOBAL_VTU_VID_MASK); |
2453 | ||
2454 | unlock: | |
2455 | mutex_unlock(&ps->smi_mutex); | |
2456 | ||
2457 | return err; | |
2458 | } | |
2459 | ||
a6692754 VD |
2460 | int mv88e6xxx_port_bridge_join(struct dsa_switch *ds, int port, |
2461 | struct net_device *bridge) | |
e79a8bcb | 2462 | { |
a6692754 | 2463 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
1d9619d5 | 2464 | int i, err = 0; |
466dfa07 | 2465 | |
936f234a VD |
2466 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_VLANTABLE)) |
2467 | return -EOPNOTSUPP; | |
2468 | ||
466dfa07 VD |
2469 | mutex_lock(&ps->smi_mutex); |
2470 | ||
b7666efe | 2471 | /* Assign the bridge and remap each port's VLANTable */ |
a6692754 | 2472 | ps->ports[port].bridge_dev = bridge; |
b7666efe | 2473 | |
009a2b98 | 2474 | for (i = 0; i < ps->info->num_ports; ++i) { |
b7666efe | 2475 | if (ps->ports[i].bridge_dev == bridge) { |
158bc065 | 2476 | err = _mv88e6xxx_port_based_vlan_map(ps, i); |
b7666efe VD |
2477 | if (err) |
2478 | break; | |
2479 | } | |
2480 | } | |
2481 | ||
466dfa07 | 2482 | mutex_unlock(&ps->smi_mutex); |
a6692754 | 2483 | |
466dfa07 | 2484 | return err; |
e79a8bcb VD |
2485 | } |
2486 | ||
16bfa702 | 2487 | void mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port) |
66d9cd0f | 2488 | { |
a6692754 | 2489 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
b7666efe | 2490 | struct net_device *bridge = ps->ports[port].bridge_dev; |
16bfa702 | 2491 | int i; |
466dfa07 | 2492 | |
936f234a VD |
2493 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_VLANTABLE)) |
2494 | return; | |
2495 | ||
466dfa07 VD |
2496 | mutex_lock(&ps->smi_mutex); |
2497 | ||
b7666efe | 2498 | /* Unassign the bridge and remap each port's VLANTable */ |
a6692754 | 2499 | ps->ports[port].bridge_dev = NULL; |
b7666efe | 2500 | |
009a2b98 | 2501 | for (i = 0; i < ps->info->num_ports; ++i) |
16bfa702 | 2502 | if (i == port || ps->ports[i].bridge_dev == bridge) |
158bc065 | 2503 | if (_mv88e6xxx_port_based_vlan_map(ps, i)) |
16bfa702 | 2504 | netdev_warn(ds->ports[i], "failed to remap\n"); |
b7666efe | 2505 | |
466dfa07 | 2506 | mutex_unlock(&ps->smi_mutex); |
66d9cd0f VD |
2507 | } |
2508 | ||
facd95b2 GR |
2509 | static void mv88e6xxx_bridge_work(struct work_struct *work) |
2510 | { | |
2511 | struct mv88e6xxx_priv_state *ps; | |
2512 | struct dsa_switch *ds; | |
2513 | int port; | |
2514 | ||
2515 | ps = container_of(work, struct mv88e6xxx_priv_state, bridge_work); | |
7543a6d5 | 2516 | ds = ps->ds; |
facd95b2 | 2517 | |
2d9deae4 VD |
2518 | mutex_lock(&ps->smi_mutex); |
2519 | ||
009a2b98 | 2520 | for (port = 0; port < ps->info->num_ports; ++port) |
2d9deae4 | 2521 | if (test_and_clear_bit(port, ps->port_state_update_mask) && |
158bc065 AL |
2522 | _mv88e6xxx_port_state(ps, port, ps->ports[port].state)) |
2523 | netdev_warn(ds->ports[port], | |
2524 | "failed to update state to %s\n", | |
2d9deae4 VD |
2525 | mv88e6xxx_port_state_names[ps->ports[port].state]); |
2526 | ||
2527 | mutex_unlock(&ps->smi_mutex); | |
facd95b2 GR |
2528 | } |
2529 | ||
158bc065 AL |
2530 | static int _mv88e6xxx_phy_page_write(struct mv88e6xxx_priv_state *ps, |
2531 | int port, int page, int reg, int val) | |
75baacf0 PU |
2532 | { |
2533 | int ret; | |
2534 | ||
158bc065 | 2535 | ret = _mv88e6xxx_phy_write_indirect(ps, port, 0x16, page); |
75baacf0 PU |
2536 | if (ret < 0) |
2537 | goto restore_page_0; | |
2538 | ||
158bc065 | 2539 | ret = _mv88e6xxx_phy_write_indirect(ps, port, reg, val); |
75baacf0 | 2540 | restore_page_0: |
158bc065 | 2541 | _mv88e6xxx_phy_write_indirect(ps, port, 0x16, 0x0); |
75baacf0 PU |
2542 | |
2543 | return ret; | |
2544 | } | |
2545 | ||
158bc065 AL |
2546 | static int _mv88e6xxx_phy_page_read(struct mv88e6xxx_priv_state *ps, |
2547 | int port, int page, int reg) | |
75baacf0 PU |
2548 | { |
2549 | int ret; | |
2550 | ||
158bc065 | 2551 | ret = _mv88e6xxx_phy_write_indirect(ps, port, 0x16, page); |
75baacf0 PU |
2552 | if (ret < 0) |
2553 | goto restore_page_0; | |
2554 | ||
158bc065 | 2555 | ret = _mv88e6xxx_phy_read_indirect(ps, port, reg); |
75baacf0 | 2556 | restore_page_0: |
158bc065 | 2557 | _mv88e6xxx_phy_write_indirect(ps, port, 0x16, 0x0); |
75baacf0 PU |
2558 | |
2559 | return ret; | |
2560 | } | |
2561 | ||
552238b5 VD |
2562 | static int mv88e6xxx_switch_reset(struct mv88e6xxx_priv_state *ps) |
2563 | { | |
2564 | bool ppu_active = mv88e6xxx_has(ps, MV88E6XXX_FLAG_PPU_ACTIVE); | |
2565 | u16 is_reset = (ppu_active ? 0x8800 : 0xc800); | |
2566 | struct gpio_desc *gpiod = ps->ds->pd->reset; | |
2567 | unsigned long timeout; | |
2568 | int ret; | |
2569 | int i; | |
2570 | ||
2571 | /* Set all ports to the disabled state. */ | |
2572 | for (i = 0; i < ps->info->num_ports; i++) { | |
2573 | ret = _mv88e6xxx_reg_read(ps, REG_PORT(i), PORT_CONTROL); | |
2574 | if (ret < 0) | |
2575 | return ret; | |
2576 | ||
2577 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(i), PORT_CONTROL, | |
2578 | ret & 0xfffc); | |
2579 | if (ret) | |
2580 | return ret; | |
2581 | } | |
2582 | ||
2583 | /* Wait for transmit queues to drain. */ | |
2584 | usleep_range(2000, 4000); | |
2585 | ||
2586 | /* If there is a gpio connected to the reset pin, toggle it */ | |
2587 | if (gpiod) { | |
2588 | gpiod_set_value_cansleep(gpiod, 1); | |
2589 | usleep_range(10000, 20000); | |
2590 | gpiod_set_value_cansleep(gpiod, 0); | |
2591 | usleep_range(10000, 20000); | |
2592 | } | |
2593 | ||
2594 | /* Reset the switch. Keep the PPU active if requested. The PPU | |
2595 | * needs to be active to support indirect phy register access | |
2596 | * through global registers 0x18 and 0x19. | |
2597 | */ | |
2598 | if (ppu_active) | |
2599 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, 0x04, 0xc000); | |
2600 | else | |
2601 | ret = _mv88e6xxx_reg_write(ps, REG_GLOBAL, 0x04, 0xc400); | |
2602 | if (ret) | |
2603 | return ret; | |
2604 | ||
2605 | /* Wait up to one second for reset to complete. */ | |
2606 | timeout = jiffies + 1 * HZ; | |
2607 | while (time_before(jiffies, timeout)) { | |
2608 | ret = _mv88e6xxx_reg_read(ps, REG_GLOBAL, 0x00); | |
2609 | if (ret < 0) | |
2610 | return ret; | |
2611 | ||
2612 | if ((ret & is_reset) == is_reset) | |
2613 | break; | |
2614 | usleep_range(1000, 2000); | |
2615 | } | |
2616 | if (time_after(jiffies, timeout)) | |
2617 | ret = -ETIMEDOUT; | |
2618 | else | |
2619 | ret = 0; | |
2620 | ||
2621 | return ret; | |
2622 | } | |
2623 | ||
158bc065 | 2624 | static int mv88e6xxx_power_on_serdes(struct mv88e6xxx_priv_state *ps) |
13a7ebb3 PU |
2625 | { |
2626 | int ret; | |
2627 | ||
158bc065 | 2628 | ret = _mv88e6xxx_phy_page_read(ps, REG_FIBER_SERDES, PAGE_FIBER_SERDES, |
13a7ebb3 PU |
2629 | MII_BMCR); |
2630 | if (ret < 0) | |
2631 | return ret; | |
2632 | ||
2633 | if (ret & BMCR_PDOWN) { | |
2634 | ret &= ~BMCR_PDOWN; | |
158bc065 | 2635 | ret = _mv88e6xxx_phy_page_write(ps, REG_FIBER_SERDES, |
13a7ebb3 PU |
2636 | PAGE_FIBER_SERDES, MII_BMCR, |
2637 | ret); | |
2638 | } | |
2639 | ||
2640 | return ret; | |
2641 | } | |
2642 | ||
dbde9e66 | 2643 | static int mv88e6xxx_setup_port(struct dsa_switch *ds, int port) |
d827e88a GR |
2644 | { |
2645 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
f02bdffc | 2646 | int ret; |
54d792f2 | 2647 | u16 reg; |
d827e88a GR |
2648 | |
2649 | mutex_lock(&ps->smi_mutex); | |
2650 | ||
158bc065 AL |
2651 | if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || |
2652 | mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || | |
2653 | mv88e6xxx_6185_family(ps) || mv88e6xxx_6095_family(ps) || | |
2654 | mv88e6xxx_6065_family(ps) || mv88e6xxx_6320_family(ps)) { | |
54d792f2 AL |
2655 | /* MAC Forcing register: don't force link, speed, |
2656 | * duplex or flow control state to any particular | |
2657 | * values on physical ports, but force the CPU port | |
2658 | * and all DSA ports to their maximum bandwidth and | |
2659 | * full duplex. | |
2660 | */ | |
158bc065 | 2661 | reg = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_PCS_CTRL); |
60045cbf | 2662 | if (dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port)) { |
53adc9e8 | 2663 | reg &= ~PORT_PCS_CTRL_UNFORCED; |
54d792f2 AL |
2664 | reg |= PORT_PCS_CTRL_FORCE_LINK | |
2665 | PORT_PCS_CTRL_LINK_UP | | |
2666 | PORT_PCS_CTRL_DUPLEX_FULL | | |
2667 | PORT_PCS_CTRL_FORCE_DUPLEX; | |
158bc065 | 2668 | if (mv88e6xxx_6065_family(ps)) |
54d792f2 AL |
2669 | reg |= PORT_PCS_CTRL_100; |
2670 | else | |
2671 | reg |= PORT_PCS_CTRL_1000; | |
2672 | } else { | |
2673 | reg |= PORT_PCS_CTRL_UNFORCED; | |
2674 | } | |
2675 | ||
158bc065 | 2676 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), |
54d792f2 AL |
2677 | PORT_PCS_CTRL, reg); |
2678 | if (ret) | |
2679 | goto abort; | |
2680 | } | |
2681 | ||
2682 | /* Port Control: disable Drop-on-Unlock, disable Drop-on-Lock, | |
2683 | * disable Header mode, enable IGMP/MLD snooping, disable VLAN | |
2684 | * tunneling, determine priority by looking at 802.1p and IP | |
2685 | * priority fields (IP prio has precedence), and set STP state | |
2686 | * to Forwarding. | |
2687 | * | |
2688 | * If this is the CPU link, use DSA or EDSA tagging depending | |
2689 | * on which tagging mode was configured. | |
2690 | * | |
2691 | * If this is a link to another switch, use DSA tagging mode. | |
2692 | * | |
2693 | * If this is the upstream port for this switch, enable | |
2694 | * forwarding of unknown unicasts and multicasts. | |
2695 | */ | |
2696 | reg = 0; | |
158bc065 AL |
2697 | if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || |
2698 | mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || | |
2699 | mv88e6xxx_6095_family(ps) || mv88e6xxx_6065_family(ps) || | |
2700 | mv88e6xxx_6185_family(ps) || mv88e6xxx_6320_family(ps)) | |
54d792f2 AL |
2701 | reg = PORT_CONTROL_IGMP_MLD_SNOOP | |
2702 | PORT_CONTROL_USE_TAG | PORT_CONTROL_USE_IP | | |
2703 | PORT_CONTROL_STATE_FORWARDING; | |
2704 | if (dsa_is_cpu_port(ds, port)) { | |
158bc065 | 2705 | if (mv88e6xxx_6095_family(ps) || mv88e6xxx_6185_family(ps)) |
54d792f2 | 2706 | reg |= PORT_CONTROL_DSA_TAG; |
158bc065 AL |
2707 | if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || |
2708 | mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || | |
2709 | mv88e6xxx_6320_family(ps)) { | |
54d792f2 AL |
2710 | if (ds->dst->tag_protocol == DSA_TAG_PROTO_EDSA) |
2711 | reg |= PORT_CONTROL_FRAME_ETHER_TYPE_DSA; | |
2712 | else | |
2713 | reg |= PORT_CONTROL_FRAME_MODE_DSA; | |
c047a1f9 AL |
2714 | reg |= PORT_CONTROL_FORWARD_UNKNOWN | |
2715 | PORT_CONTROL_FORWARD_UNKNOWN_MC; | |
54d792f2 AL |
2716 | } |
2717 | ||
158bc065 AL |
2718 | if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || |
2719 | mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || | |
2720 | mv88e6xxx_6095_family(ps) || mv88e6xxx_6065_family(ps) || | |
2721 | mv88e6xxx_6185_family(ps) || mv88e6xxx_6320_family(ps)) { | |
54d792f2 AL |
2722 | if (ds->dst->tag_protocol == DSA_TAG_PROTO_EDSA) |
2723 | reg |= PORT_CONTROL_EGRESS_ADD_TAG; | |
2724 | } | |
2725 | } | |
6083ce71 | 2726 | if (dsa_is_dsa_port(ds, port)) { |
158bc065 | 2727 | if (mv88e6xxx_6095_family(ps) || mv88e6xxx_6185_family(ps)) |
6083ce71 | 2728 | reg |= PORT_CONTROL_DSA_TAG; |
158bc065 AL |
2729 | if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || |
2730 | mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || | |
2731 | mv88e6xxx_6320_family(ps)) { | |
54d792f2 | 2732 | reg |= PORT_CONTROL_FRAME_MODE_DSA; |
6083ce71 AL |
2733 | } |
2734 | ||
54d792f2 AL |
2735 | if (port == dsa_upstream_port(ds)) |
2736 | reg |= PORT_CONTROL_FORWARD_UNKNOWN | | |
2737 | PORT_CONTROL_FORWARD_UNKNOWN_MC; | |
2738 | } | |
2739 | if (reg) { | |
158bc065 | 2740 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), |
54d792f2 AL |
2741 | PORT_CONTROL, reg); |
2742 | if (ret) | |
2743 | goto abort; | |
2744 | } | |
2745 | ||
13a7ebb3 PU |
2746 | /* If this port is connected to a SerDes, make sure the SerDes is not |
2747 | * powered down. | |
2748 | */ | |
158bc065 AL |
2749 | if (mv88e6xxx_6352_family(ps)) { |
2750 | ret = _mv88e6xxx_reg_read(ps, REG_PORT(port), PORT_STATUS); | |
13a7ebb3 PU |
2751 | if (ret < 0) |
2752 | goto abort; | |
2753 | ret &= PORT_STATUS_CMODE_MASK; | |
2754 | if ((ret == PORT_STATUS_CMODE_100BASE_X) || | |
2755 | (ret == PORT_STATUS_CMODE_1000BASE_X) || | |
2756 | (ret == PORT_STATUS_CMODE_SGMII)) { | |
158bc065 | 2757 | ret = mv88e6xxx_power_on_serdes(ps); |
13a7ebb3 PU |
2758 | if (ret < 0) |
2759 | goto abort; | |
2760 | } | |
2761 | } | |
2762 | ||
8efdda4a | 2763 | /* Port Control 2: don't force a good FCS, set the maximum frame size to |
46fbe5e5 | 2764 | * 10240 bytes, disable 802.1q tags checking, don't discard tagged or |
8efdda4a VD |
2765 | * untagged frames on this port, do a destination address lookup on all |
2766 | * received packets as usual, disable ARP mirroring and don't send a | |
2767 | * copy of all transmitted/received frames on this port to the CPU. | |
54d792f2 AL |
2768 | */ |
2769 | reg = 0; | |
158bc065 AL |
2770 | if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || |
2771 | mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || | |
2772 | mv88e6xxx_6095_family(ps) || mv88e6xxx_6320_family(ps) || | |
2773 | mv88e6xxx_6185_family(ps)) | |
54d792f2 AL |
2774 | reg = PORT_CONTROL_2_MAP_DA; |
2775 | ||
158bc065 AL |
2776 | if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || |
2777 | mv88e6xxx_6165_family(ps) || mv88e6xxx_6320_family(ps)) | |
54d792f2 AL |
2778 | reg |= PORT_CONTROL_2_JUMBO_10240; |
2779 | ||
158bc065 | 2780 | if (mv88e6xxx_6095_family(ps) || mv88e6xxx_6185_family(ps)) { |
54d792f2 AL |
2781 | /* Set the upstream port this port should use */ |
2782 | reg |= dsa_upstream_port(ds); | |
2783 | /* enable forwarding of unknown multicast addresses to | |
2784 | * the upstream port | |
2785 | */ | |
2786 | if (port == dsa_upstream_port(ds)) | |
2787 | reg |= PORT_CONTROL_2_FORWARD_UNKNOWN; | |
2788 | } | |
2789 | ||
46fbe5e5 | 2790 | reg |= PORT_CONTROL_2_8021Q_DISABLED; |
8efdda4a | 2791 | |
54d792f2 | 2792 | if (reg) { |
158bc065 | 2793 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), |
54d792f2 AL |
2794 | PORT_CONTROL_2, reg); |
2795 | if (ret) | |
2796 | goto abort; | |
2797 | } | |
2798 | ||
2799 | /* Port Association Vector: when learning source addresses | |
2800 | * of packets, add the address to the address database using | |
2801 | * a port bitmap that has only the bit for this port set and | |
2802 | * the other bits clear. | |
2803 | */ | |
4c7ea3c0 | 2804 | reg = 1 << port; |
996ecb82 VD |
2805 | /* Disable learning for CPU port */ |
2806 | if (dsa_is_cpu_port(ds, port)) | |
65fa4027 | 2807 | reg = 0; |
4c7ea3c0 | 2808 | |
158bc065 | 2809 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_ASSOC_VECTOR, reg); |
54d792f2 AL |
2810 | if (ret) |
2811 | goto abort; | |
2812 | ||
2813 | /* Egress rate control 2: disable egress rate control. */ | |
158bc065 | 2814 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_RATE_CONTROL_2, |
54d792f2 AL |
2815 | 0x0000); |
2816 | if (ret) | |
2817 | goto abort; | |
2818 | ||
158bc065 AL |
2819 | if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || |
2820 | mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || | |
2821 | mv88e6xxx_6320_family(ps)) { | |
54d792f2 AL |
2822 | /* Do not limit the period of time that this port can |
2823 | * be paused for by the remote end or the period of | |
2824 | * time that this port can pause the remote end. | |
2825 | */ | |
158bc065 | 2826 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), |
54d792f2 AL |
2827 | PORT_PAUSE_CTRL, 0x0000); |
2828 | if (ret) | |
2829 | goto abort; | |
2830 | ||
2831 | /* Port ATU control: disable limiting the number of | |
2832 | * address database entries that this port is allowed | |
2833 | * to use. | |
2834 | */ | |
158bc065 | 2835 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), |
54d792f2 AL |
2836 | PORT_ATU_CONTROL, 0x0000); |
2837 | /* Priority Override: disable DA, SA and VTU priority | |
2838 | * override. | |
2839 | */ | |
158bc065 | 2840 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), |
54d792f2 AL |
2841 | PORT_PRI_OVERRIDE, 0x0000); |
2842 | if (ret) | |
2843 | goto abort; | |
2844 | ||
2845 | /* Port Ethertype: use the Ethertype DSA Ethertype | |
2846 | * value. | |
2847 | */ | |
158bc065 | 2848 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), |
54d792f2 AL |
2849 | PORT_ETH_TYPE, ETH_P_EDSA); |
2850 | if (ret) | |
2851 | goto abort; | |
2852 | /* Tag Remap: use an identity 802.1p prio -> switch | |
2853 | * prio mapping. | |
2854 | */ | |
158bc065 | 2855 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), |
54d792f2 AL |
2856 | PORT_TAG_REGMAP_0123, 0x3210); |
2857 | if (ret) | |
2858 | goto abort; | |
2859 | ||
2860 | /* Tag Remap 2: use an identity 802.1p prio -> switch | |
2861 | * prio mapping. | |
2862 | */ | |
158bc065 | 2863 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), |
54d792f2 AL |
2864 | PORT_TAG_REGMAP_4567, 0x7654); |
2865 | if (ret) | |
2866 | goto abort; | |
2867 | } | |
2868 | ||
158bc065 AL |
2869 | if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || |
2870 | mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || | |
2871 | mv88e6xxx_6185_family(ps) || mv88e6xxx_6095_family(ps) || | |
2872 | mv88e6xxx_6320_family(ps)) { | |
54d792f2 | 2873 | /* Rate Control: disable ingress rate limiting. */ |
158bc065 | 2874 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), |
54d792f2 AL |
2875 | PORT_RATE_CONTROL, 0x0001); |
2876 | if (ret) | |
2877 | goto abort; | |
2878 | } | |
2879 | ||
366f0a0f GR |
2880 | /* Port Control 1: disable trunking, disable sending |
2881 | * learning messages to this port. | |
d827e88a | 2882 | */ |
158bc065 | 2883 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_CONTROL_1, 0x0000); |
d827e88a GR |
2884 | if (ret) |
2885 | goto abort; | |
2886 | ||
207afda1 | 2887 | /* Port based VLAN map: give each port the same default address |
b7666efe VD |
2888 | * database, and allow bidirectional communication between the |
2889 | * CPU and DSA port(s), and the other ports. | |
d827e88a | 2890 | */ |
158bc065 | 2891 | ret = _mv88e6xxx_port_fid_set(ps, port, 0); |
2db9ce1f VD |
2892 | if (ret) |
2893 | goto abort; | |
2894 | ||
158bc065 | 2895 | ret = _mv88e6xxx_port_based_vlan_map(ps, port); |
d827e88a GR |
2896 | if (ret) |
2897 | goto abort; | |
2898 | ||
2899 | /* Default VLAN ID and priority: don't set a default VLAN | |
2900 | * ID, and set the default packet priority to zero. | |
2901 | */ | |
158bc065 | 2902 | ret = _mv88e6xxx_reg_write(ps, REG_PORT(port), PORT_DEFAULT_VLAN, |
47cf1e65 | 2903 | 0x0000); |
d827e88a GR |
2904 | abort: |
2905 | mutex_unlock(&ps->smi_mutex); | |
2906 | return ret; | |
2907 | } | |
2908 | ||
dbde9e66 AL |
2909 | int mv88e6xxx_setup_ports(struct dsa_switch *ds) |
2910 | { | |
2911 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
2912 | int ret; | |
2913 | int i; | |
2914 | ||
009a2b98 | 2915 | for (i = 0; i < ps->info->num_ports; i++) { |
dbde9e66 AL |
2916 | ret = mv88e6xxx_setup_port(ds, i); |
2917 | if (ret < 0) | |
2918 | return ret; | |
2919 | } | |
2920 | return 0; | |
2921 | } | |
2922 | ||
08a01261 | 2923 | static int mv88e6xxx_setup_global(struct mv88e6xxx_priv_state *ps) |
acdaffcc | 2924 | { |
b0745e87 VD |
2925 | struct dsa_switch *ds = ps->ds; |
2926 | u32 upstream_port = dsa_upstream_port(ds); | |
119477bd | 2927 | u16 reg; |
552238b5 | 2928 | int err; |
54d792f2 AL |
2929 | int i; |
2930 | ||
119477bd VD |
2931 | /* Enable the PHY Polling Unit if present, don't discard any packets, |
2932 | * and mask all interrupt sources. | |
2933 | */ | |
2934 | reg = 0; | |
2935 | if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_PPU) || | |
2936 | mv88e6xxx_has(ps, MV88E6XXX_FLAG_PPU_ACTIVE)) | |
2937 | reg |= GLOBAL_CONTROL_PPU_ENABLE; | |
2938 | ||
2939 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_CONTROL, reg); | |
2940 | if (err) | |
2941 | return err; | |
2942 | ||
b0745e87 VD |
2943 | /* Configure the upstream port, and configure it as the port to which |
2944 | * ingress and egress and ARP monitor frames are to be sent. | |
2945 | */ | |
2946 | reg = upstream_port << GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT | | |
2947 | upstream_port << GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT | | |
2948 | upstream_port << GLOBAL_MONITOR_CONTROL_ARP_SHIFT; | |
2949 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_MONITOR_CONTROL, reg); | |
2950 | if (err) | |
2951 | return err; | |
2952 | ||
54d792f2 AL |
2953 | /* Set the default address aging time to 5 minutes, and |
2954 | * enable address learn messages to be sent to all message | |
2955 | * ports. | |
2956 | */ | |
158bc065 | 2957 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_ATU_CONTROL, |
48ace4ef AL |
2958 | 0x0140 | GLOBAL_ATU_CONTROL_LEARN2ALL); |
2959 | if (err) | |
08a01261 | 2960 | return err; |
54d792f2 AL |
2961 | |
2962 | /* Configure the IP ToS mapping registers. */ | |
158bc065 | 2963 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IP_PRI_0, 0x0000); |
48ace4ef | 2964 | if (err) |
08a01261 | 2965 | return err; |
158bc065 | 2966 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IP_PRI_1, 0x0000); |
48ace4ef | 2967 | if (err) |
08a01261 | 2968 | return err; |
158bc065 | 2969 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IP_PRI_2, 0x5555); |
48ace4ef | 2970 | if (err) |
08a01261 | 2971 | return err; |
158bc065 | 2972 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IP_PRI_3, 0x5555); |
48ace4ef | 2973 | if (err) |
08a01261 | 2974 | return err; |
158bc065 | 2975 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IP_PRI_4, 0xaaaa); |
48ace4ef | 2976 | if (err) |
08a01261 | 2977 | return err; |
158bc065 | 2978 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IP_PRI_5, 0xaaaa); |
48ace4ef | 2979 | if (err) |
08a01261 | 2980 | return err; |
158bc065 | 2981 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IP_PRI_6, 0xffff); |
48ace4ef | 2982 | if (err) |
08a01261 | 2983 | return err; |
158bc065 | 2984 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IP_PRI_7, 0xffff); |
48ace4ef | 2985 | if (err) |
08a01261 | 2986 | return err; |
54d792f2 AL |
2987 | |
2988 | /* Configure the IEEE 802.1p priority mapping register. */ | |
158bc065 | 2989 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_IEEE_PRI, 0xfa41); |
48ace4ef | 2990 | if (err) |
08a01261 | 2991 | return err; |
54d792f2 AL |
2992 | |
2993 | /* Send all frames with destination addresses matching | |
2994 | * 01:80:c2:00:00:0x to the CPU port. | |
2995 | */ | |
158bc065 | 2996 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_MGMT_EN_0X, 0xffff); |
48ace4ef | 2997 | if (err) |
08a01261 | 2998 | return err; |
54d792f2 AL |
2999 | |
3000 | /* Ignore removed tag data on doubly tagged packets, disable | |
3001 | * flow control messages, force flow control priority to the | |
3002 | * highest, and send all special multicast frames to the CPU | |
3003 | * port at the highest priority. | |
3004 | */ | |
158bc065 | 3005 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_SWITCH_MGMT, |
48ace4ef AL |
3006 | 0x7 | GLOBAL2_SWITCH_MGMT_RSVD2CPU | 0x70 | |
3007 | GLOBAL2_SWITCH_MGMT_FORCE_FLOW_CTRL_PRI); | |
3008 | if (err) | |
08a01261 | 3009 | return err; |
54d792f2 AL |
3010 | |
3011 | /* Program the DSA routing table. */ | |
3012 | for (i = 0; i < 32; i++) { | |
3013 | int nexthop = 0x1f; | |
3014 | ||
08a01261 VD |
3015 | if (ps->ds->pd->rtable && |
3016 | i != ps->ds->index && i < ps->ds->dst->pd->nr_chips) | |
3017 | nexthop = ps->ds->pd->rtable[i] & 0x1f; | |
54d792f2 | 3018 | |
48ace4ef | 3019 | err = _mv88e6xxx_reg_write( |
158bc065 | 3020 | ps, REG_GLOBAL2, |
48ace4ef AL |
3021 | GLOBAL2_DEVICE_MAPPING, |
3022 | GLOBAL2_DEVICE_MAPPING_UPDATE | | |
3023 | (i << GLOBAL2_DEVICE_MAPPING_TARGET_SHIFT) | nexthop); | |
3024 | if (err) | |
08a01261 | 3025 | return err; |
54d792f2 AL |
3026 | } |
3027 | ||
3028 | /* Clear all trunk masks. */ | |
48ace4ef | 3029 | for (i = 0; i < 8; i++) { |
158bc065 | 3030 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_TRUNK_MASK, |
48ace4ef AL |
3031 | 0x8000 | |
3032 | (i << GLOBAL2_TRUNK_MASK_NUM_SHIFT) | | |
009a2b98 | 3033 | ((1 << ps->info->num_ports) - 1)); |
48ace4ef | 3034 | if (err) |
08a01261 | 3035 | return err; |
48ace4ef | 3036 | } |
54d792f2 AL |
3037 | |
3038 | /* Clear all trunk mappings. */ | |
48ace4ef AL |
3039 | for (i = 0; i < 16; i++) { |
3040 | err = _mv88e6xxx_reg_write( | |
158bc065 | 3041 | ps, REG_GLOBAL2, |
48ace4ef AL |
3042 | GLOBAL2_TRUNK_MAPPING, |
3043 | GLOBAL2_TRUNK_MAPPING_UPDATE | | |
3044 | (i << GLOBAL2_TRUNK_MAPPING_ID_SHIFT)); | |
3045 | if (err) | |
08a01261 | 3046 | return err; |
48ace4ef | 3047 | } |
54d792f2 | 3048 | |
158bc065 AL |
3049 | if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || |
3050 | mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || | |
3051 | mv88e6xxx_6320_family(ps)) { | |
54d792f2 AL |
3052 | /* Send all frames with destination addresses matching |
3053 | * 01:80:c2:00:00:2x to the CPU port. | |
3054 | */ | |
158bc065 | 3055 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, |
48ace4ef AL |
3056 | GLOBAL2_MGMT_EN_2X, 0xffff); |
3057 | if (err) | |
08a01261 | 3058 | return err; |
54d792f2 AL |
3059 | |
3060 | /* Initialise cross-chip port VLAN table to reset | |
3061 | * defaults. | |
3062 | */ | |
158bc065 | 3063 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, |
48ace4ef AL |
3064 | GLOBAL2_PVT_ADDR, 0x9000); |
3065 | if (err) | |
08a01261 | 3066 | return err; |
54d792f2 AL |
3067 | |
3068 | /* Clear the priority override table. */ | |
48ace4ef | 3069 | for (i = 0; i < 16; i++) { |
158bc065 | 3070 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, |
48ace4ef AL |
3071 | GLOBAL2_PRIO_OVERRIDE, |
3072 | 0x8000 | (i << 8)); | |
3073 | if (err) | |
08a01261 | 3074 | return err; |
48ace4ef | 3075 | } |
54d792f2 AL |
3076 | } |
3077 | ||
158bc065 AL |
3078 | if (mv88e6xxx_6352_family(ps) || mv88e6xxx_6351_family(ps) || |
3079 | mv88e6xxx_6165_family(ps) || mv88e6xxx_6097_family(ps) || | |
3080 | mv88e6xxx_6185_family(ps) || mv88e6xxx_6095_family(ps) || | |
3081 | mv88e6xxx_6320_family(ps)) { | |
54d792f2 AL |
3082 | /* Disable ingress rate limiting by resetting all |
3083 | * ingress rate limit registers to their initial | |
3084 | * state. | |
3085 | */ | |
009a2b98 | 3086 | for (i = 0; i < ps->info->num_ports; i++) { |
158bc065 | 3087 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL2, |
48ace4ef AL |
3088 | GLOBAL2_INGRESS_OP, |
3089 | 0x9000 | (i << 8)); | |
3090 | if (err) | |
08a01261 | 3091 | return err; |
48ace4ef | 3092 | } |
54d792f2 AL |
3093 | } |
3094 | ||
db687a56 | 3095 | /* Clear the statistics counters for all ports */ |
158bc065 | 3096 | err = _mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_STATS_OP, |
48ace4ef AL |
3097 | GLOBAL_STATS_OP_FLUSH_ALL); |
3098 | if (err) | |
08a01261 | 3099 | return err; |
db687a56 AL |
3100 | |
3101 | /* Wait for the flush to complete. */ | |
158bc065 | 3102 | err = _mv88e6xxx_stats_wait(ps); |
08a01261 VD |
3103 | if (err) |
3104 | return err; | |
6b17e864 | 3105 | |
c161d0a5 | 3106 | /* Clear all ATU entries */ |
158bc065 | 3107 | err = _mv88e6xxx_atu_flush(ps, 0, true); |
08a01261 VD |
3108 | if (err) |
3109 | return err; | |
c161d0a5 | 3110 | |
6b17e864 | 3111 | /* Clear all the VTU and STU entries */ |
158bc065 | 3112 | err = _mv88e6xxx_vtu_stu_flush(ps); |
08a01261 VD |
3113 | if (err < 0) |
3114 | return err; | |
3115 | ||
3116 | return err; | |
3117 | } | |
3118 | ||
3119 | int mv88e6xxx_setup_common(struct mv88e6xxx_priv_state *ps) | |
3120 | { | |
3121 | int err; | |
3122 | ||
3123 | mutex_init(&ps->smi_mutex); | |
3124 | ||
3125 | INIT_WORK(&ps->bridge_work, mv88e6xxx_bridge_work); | |
3126 | ||
3127 | if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_EEPROM)) | |
3128 | mutex_init(&ps->eeprom_mutex); | |
3129 | ||
3130 | if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_PPU)) | |
3131 | mv88e6xxx_ppu_state_init(ps); | |
3132 | ||
3133 | mutex_lock(&ps->smi_mutex); | |
3134 | ||
3135 | err = mv88e6xxx_switch_reset(ps); | |
3136 | if (err) | |
3137 | goto unlock; | |
3138 | ||
3139 | err = mv88e6xxx_setup_global(ps); | |
3140 | ||
6b17e864 | 3141 | unlock: |
24751e29 | 3142 | mutex_unlock(&ps->smi_mutex); |
db687a56 | 3143 | |
48ace4ef | 3144 | return err; |
54d792f2 AL |
3145 | } |
3146 | ||
49143585 AL |
3147 | int mv88e6xxx_phy_page_read(struct dsa_switch *ds, int port, int page, int reg) |
3148 | { | |
3149 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
3150 | int ret; | |
3151 | ||
3898c148 | 3152 | mutex_lock(&ps->smi_mutex); |
158bc065 | 3153 | ret = _mv88e6xxx_phy_page_read(ps, port, page, reg); |
3898c148 | 3154 | mutex_unlock(&ps->smi_mutex); |
75baacf0 | 3155 | |
49143585 AL |
3156 | return ret; |
3157 | } | |
3158 | ||
3159 | int mv88e6xxx_phy_page_write(struct dsa_switch *ds, int port, int page, | |
3160 | int reg, int val) | |
3161 | { | |
3162 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
3163 | int ret; | |
3164 | ||
3898c148 | 3165 | mutex_lock(&ps->smi_mutex); |
158bc065 | 3166 | ret = _mv88e6xxx_phy_page_write(ps, port, page, reg, val); |
3898c148 | 3167 | mutex_unlock(&ps->smi_mutex); |
75baacf0 | 3168 | |
fd3a0ee4 AL |
3169 | return ret; |
3170 | } | |
3171 | ||
158bc065 AL |
3172 | static int mv88e6xxx_port_to_phy_addr(struct mv88e6xxx_priv_state *ps, |
3173 | int port) | |
fd3a0ee4 | 3174 | { |
009a2b98 | 3175 | if (port >= 0 && port < ps->info->num_ports) |
fd3a0ee4 AL |
3176 | return port; |
3177 | return -EINVAL; | |
3178 | } | |
3179 | ||
3180 | int | |
3181 | mv88e6xxx_phy_read(struct dsa_switch *ds, int port, int regnum) | |
3182 | { | |
3183 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
158bc065 | 3184 | int addr = mv88e6xxx_port_to_phy_addr(ps, port); |
fd3a0ee4 AL |
3185 | int ret; |
3186 | ||
3187 | if (addr < 0) | |
158bc065 | 3188 | return 0xffff; |
fd3a0ee4 | 3189 | |
3898c148 | 3190 | mutex_lock(&ps->smi_mutex); |
8c9983a2 VD |
3191 | |
3192 | if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_PPU)) | |
3193 | ret = mv88e6xxx_phy_read_ppu(ps, addr, regnum); | |
6d5834a1 VD |
3194 | else if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_SMI_PHY)) |
3195 | ret = _mv88e6xxx_phy_read_indirect(ps, addr, regnum); | |
8c9983a2 VD |
3196 | else |
3197 | ret = _mv88e6xxx_phy_read(ps, addr, regnum); | |
3198 | ||
3898c148 | 3199 | mutex_unlock(&ps->smi_mutex); |
fd3a0ee4 AL |
3200 | return ret; |
3201 | } | |
3202 | ||
3203 | int | |
3204 | mv88e6xxx_phy_write(struct dsa_switch *ds, int port, int regnum, u16 val) | |
3205 | { | |
3206 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
158bc065 | 3207 | int addr = mv88e6xxx_port_to_phy_addr(ps, port); |
fd3a0ee4 AL |
3208 | int ret; |
3209 | ||
3210 | if (addr < 0) | |
158bc065 | 3211 | return 0xffff; |
fd3a0ee4 | 3212 | |
3898c148 | 3213 | mutex_lock(&ps->smi_mutex); |
8c9983a2 VD |
3214 | |
3215 | if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_PPU)) | |
3216 | ret = mv88e6xxx_phy_write_ppu(ps, addr, regnum, val); | |
6d5834a1 VD |
3217 | else if (mv88e6xxx_has(ps, MV88E6XXX_FLAG_SMI_PHY)) |
3218 | ret = _mv88e6xxx_phy_write_indirect(ps, addr, regnum, val); | |
8c9983a2 VD |
3219 | else |
3220 | ret = _mv88e6xxx_phy_write(ps, addr, regnum, val); | |
3221 | ||
3898c148 | 3222 | mutex_unlock(&ps->smi_mutex); |
fd3a0ee4 AL |
3223 | return ret; |
3224 | } | |
3225 | ||
c22995c5 GR |
3226 | #ifdef CONFIG_NET_DSA_HWMON |
3227 | ||
3228 | static int mv88e61xx_get_temp(struct dsa_switch *ds, int *temp) | |
3229 | { | |
3230 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); | |
3231 | int ret; | |
3232 | int val; | |
3233 | ||
3234 | *temp = 0; | |
3235 | ||
3236 | mutex_lock(&ps->smi_mutex); | |
3237 | ||
158bc065 | 3238 | ret = _mv88e6xxx_phy_write(ps, 0x0, 0x16, 0x6); |
c22995c5 GR |
3239 | if (ret < 0) |
3240 | goto error; | |
3241 | ||
3242 | /* Enable temperature sensor */ | |
158bc065 | 3243 | ret = _mv88e6xxx_phy_read(ps, 0x0, 0x1a); |
c22995c5 GR |
3244 | if (ret < 0) |
3245 | goto error; | |
3246 | ||
158bc065 | 3247 | ret = _mv88e6xxx_phy_write(ps, 0x0, 0x1a, ret | (1 << 5)); |
c22995c5 GR |
3248 | if (ret < 0) |
3249 | goto error; | |
3250 | ||
3251 | /* Wait for temperature to stabilize */ | |
3252 | usleep_range(10000, 12000); | |
3253 | ||
158bc065 | 3254 | val = _mv88e6xxx_phy_read(ps, 0x0, 0x1a); |
c22995c5 GR |
3255 | if (val < 0) { |
3256 | ret = val; | |
3257 | goto error; | |
3258 | } | |
3259 | ||
3260 | /* Disable temperature sensor */ | |
158bc065 | 3261 | ret = _mv88e6xxx_phy_write(ps, 0x0, 0x1a, ret & ~(1 << 5)); |
c22995c5 GR |
3262 | if (ret < 0) |
3263 | goto error; | |
3264 | ||
3265 | *temp = ((val & 0x1f) - 5) * 5; | |
3266 | ||
3267 | error: | |
158bc065 | 3268 | _mv88e6xxx_phy_write(ps, 0x0, 0x16, 0x0); |
c22995c5 GR |
3269 | mutex_unlock(&ps->smi_mutex); |
3270 | return ret; | |
3271 | } | |
3272 | ||
3273 | static int mv88e63xx_get_temp(struct dsa_switch *ds, int *temp) | |
3274 | { | |
158bc065 AL |
3275 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
3276 | int phy = mv88e6xxx_6320_family(ps) ? 3 : 0; | |
c22995c5 GR |
3277 | int ret; |
3278 | ||
3279 | *temp = 0; | |
3280 | ||
3281 | ret = mv88e6xxx_phy_page_read(ds, phy, 6, 27); | |
3282 | if (ret < 0) | |
3283 | return ret; | |
3284 | ||
3285 | *temp = (ret & 0xff) - 25; | |
3286 | ||
3287 | return 0; | |
3288 | } | |
3289 | ||
3290 | int mv88e6xxx_get_temp(struct dsa_switch *ds, int *temp) | |
3291 | { | |
158bc065 AL |
3292 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
3293 | ||
6594f615 VD |
3294 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_TEMP)) |
3295 | return -EOPNOTSUPP; | |
3296 | ||
158bc065 | 3297 | if (mv88e6xxx_6320_family(ps) || mv88e6xxx_6352_family(ps)) |
c22995c5 GR |
3298 | return mv88e63xx_get_temp(ds, temp); |
3299 | ||
3300 | return mv88e61xx_get_temp(ds, temp); | |
3301 | } | |
3302 | ||
3303 | int mv88e6xxx_get_temp_limit(struct dsa_switch *ds, int *temp) | |
3304 | { | |
158bc065 AL |
3305 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
3306 | int phy = mv88e6xxx_6320_family(ps) ? 3 : 0; | |
c22995c5 GR |
3307 | int ret; |
3308 | ||
6594f615 | 3309 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_TEMP_LIMIT)) |
c22995c5 GR |
3310 | return -EOPNOTSUPP; |
3311 | ||
3312 | *temp = 0; | |
3313 | ||
3314 | ret = mv88e6xxx_phy_page_read(ds, phy, 6, 26); | |
3315 | if (ret < 0) | |
3316 | return ret; | |
3317 | ||
3318 | *temp = (((ret >> 8) & 0x1f) * 5) - 25; | |
3319 | ||
3320 | return 0; | |
3321 | } | |
3322 | ||
3323 | int mv88e6xxx_set_temp_limit(struct dsa_switch *ds, int temp) | |
3324 | { | |
158bc065 AL |
3325 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
3326 | int phy = mv88e6xxx_6320_family(ps) ? 3 : 0; | |
c22995c5 GR |
3327 | int ret; |
3328 | ||
6594f615 | 3329 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_TEMP_LIMIT)) |
c22995c5 GR |
3330 | return -EOPNOTSUPP; |
3331 | ||
3332 | ret = mv88e6xxx_phy_page_read(ds, phy, 6, 26); | |
3333 | if (ret < 0) | |
3334 | return ret; | |
3335 | temp = clamp_val(DIV_ROUND_CLOSEST(temp, 5) + 5, 0, 0x1f); | |
3336 | return mv88e6xxx_phy_page_write(ds, phy, 6, 26, | |
3337 | (ret & 0xe0ff) | (temp << 8)); | |
3338 | } | |
3339 | ||
3340 | int mv88e6xxx_get_temp_alarm(struct dsa_switch *ds, bool *alarm) | |
3341 | { | |
158bc065 AL |
3342 | struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); |
3343 | int phy = mv88e6xxx_6320_family(ps) ? 3 : 0; | |
c22995c5 GR |
3344 | int ret; |
3345 | ||
6594f615 | 3346 | if (!mv88e6xxx_has(ps, MV88E6XXX_FLAG_TEMP_LIMIT)) |
c22995c5 GR |
3347 | return -EOPNOTSUPP; |
3348 | ||
3349 | *alarm = false; | |
3350 | ||
3351 | ret = mv88e6xxx_phy_page_read(ds, phy, 6, 26); | |
3352 | if (ret < 0) | |
3353 | return ret; | |
3354 | ||
3355 | *alarm = !!(ret & 0x40); | |
3356 | ||
3357 | return 0; | |
3358 | } | |
3359 | #endif /* CONFIG_NET_DSA_HWMON */ | |
3360 | ||
f6271e67 VD |
3361 | static const struct mv88e6xxx_info * |
3362 | mv88e6xxx_lookup_info(unsigned int prod_num, const struct mv88e6xxx_info *table, | |
0209d144 | 3363 | unsigned int num) |
b9b37713 | 3364 | { |
a439c061 | 3365 | int i; |
b9b37713 | 3366 | |
b9b37713 | 3367 | for (i = 0; i < num; ++i) |
f6271e67 VD |
3368 | if (table[i].prod_num == prod_num) |
3369 | return &table[i]; | |
b9b37713 | 3370 | |
b9b37713 VD |
3371 | return NULL; |
3372 | } | |
3373 | ||
0209d144 VD |
3374 | const char *mv88e6xxx_drv_probe(struct device *dsa_dev, struct device *host_dev, |
3375 | int sw_addr, void **priv, | |
f6271e67 | 3376 | const struct mv88e6xxx_info *table, |
0209d144 | 3377 | unsigned int num) |
a77d43f1 | 3378 | { |
f6271e67 | 3379 | const struct mv88e6xxx_info *info; |
a77d43f1 | 3380 | struct mv88e6xxx_priv_state *ps; |
a439c061 | 3381 | struct mii_bus *bus; |
0209d144 | 3382 | const char *name; |
a439c061 | 3383 | int id, prod_num, rev; |
a77d43f1 | 3384 | |
a439c061 | 3385 | bus = dsa_host_dev_to_mii_bus(host_dev); |
c156913b AL |
3386 | if (!bus) |
3387 | return NULL; | |
3388 | ||
a439c061 VD |
3389 | id = __mv88e6xxx_reg_read(bus, sw_addr, REG_PORT(0), PORT_SWITCH_ID); |
3390 | if (id < 0) | |
3391 | return NULL; | |
3392 | ||
3393 | prod_num = (id & 0xfff0) >> 4; | |
3394 | rev = id & 0x000f; | |
3395 | ||
f6271e67 VD |
3396 | info = mv88e6xxx_lookup_info(prod_num, table, num); |
3397 | if (!info) | |
a439c061 VD |
3398 | return NULL; |
3399 | ||
f6271e67 VD |
3400 | name = info->name; |
3401 | ||
a439c061 VD |
3402 | ps = devm_kzalloc(dsa_dev, sizeof(*ps), GFP_KERNEL); |
3403 | if (!ps) | |
3404 | return NULL; | |
3405 | ||
3406 | ps->bus = bus; | |
3407 | ps->sw_addr = sw_addr; | |
f6271e67 | 3408 | ps->info = info; |
a439c061 VD |
3409 | |
3410 | *priv = ps; | |
3411 | ||
3412 | dev_info(&ps->bus->dev, "switch 0x%x probed: %s, revision %u\n", | |
3413 | prod_num, name, rev); | |
3414 | ||
a77d43f1 AL |
3415 | return name; |
3416 | } | |
3417 | ||
98e67308 BH |
3418 | static int __init mv88e6xxx_init(void) |
3419 | { | |
3420 | #if IS_ENABLED(CONFIG_NET_DSA_MV88E6131) | |
3421 | register_switch_driver(&mv88e6131_switch_driver); | |
3422 | #endif | |
ca3dfa51 AL |
3423 | #if IS_ENABLED(CONFIG_NET_DSA_MV88E6123) |
3424 | register_switch_driver(&mv88e6123_switch_driver); | |
42f27253 | 3425 | #endif |
3ad50cca GR |
3426 | #if IS_ENABLED(CONFIG_NET_DSA_MV88E6352) |
3427 | register_switch_driver(&mv88e6352_switch_driver); | |
3428 | #endif | |
42f27253 AL |
3429 | #if IS_ENABLED(CONFIG_NET_DSA_MV88E6171) |
3430 | register_switch_driver(&mv88e6171_switch_driver); | |
98e67308 BH |
3431 | #endif |
3432 | return 0; | |
3433 | } | |
3434 | module_init(mv88e6xxx_init); | |
3435 | ||
3436 | static void __exit mv88e6xxx_cleanup(void) | |
3437 | { | |
42f27253 AL |
3438 | #if IS_ENABLED(CONFIG_NET_DSA_MV88E6171) |
3439 | unregister_switch_driver(&mv88e6171_switch_driver); | |
3440 | #endif | |
4212b543 VD |
3441 | #if IS_ENABLED(CONFIG_NET_DSA_MV88E6352) |
3442 | unregister_switch_driver(&mv88e6352_switch_driver); | |
3443 | #endif | |
ca3dfa51 AL |
3444 | #if IS_ENABLED(CONFIG_NET_DSA_MV88E6123) |
3445 | unregister_switch_driver(&mv88e6123_switch_driver); | |
98e67308 BH |
3446 | #endif |
3447 | #if IS_ENABLED(CONFIG_NET_DSA_MV88E6131) | |
3448 | unregister_switch_driver(&mv88e6131_switch_driver); | |
3449 | #endif | |
3450 | } | |
3451 | module_exit(mv88e6xxx_cleanup); | |
3d825ede BH |
3452 | |
3453 | MODULE_AUTHOR("Lennert Buytenhek <buytenh@wantstofly.org>"); | |
3454 | MODULE_DESCRIPTION("Driver for Marvell 88E6XXX ethernet switch chips"); | |
3455 | MODULE_LICENSE("GPL"); |