1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (c) 2014-2015 Hisilicon Limited.
4 */
5
6#include "hns_dsaf_mac.h"
7#include "hns_dsaf_misc.h"
8#include "hns_dsaf_ppe.h"
9#include "hns_dsaf_reg.h"
10
11enum _dsm_op_index {
12 HNS_OP_RESET_FUNC = 0x1,
13 HNS_OP_SERDES_LP_FUNC = 0x2,
14 HNS_OP_LED_SET_FUNC = 0x3,
15 HNS_OP_GET_PORT_TYPE_FUNC = 0x4,
16 HNS_OP_GET_SFP_STAT_FUNC = 0x5,
17 HNS_OP_LOCATE_LED_SET_FUNC = 0x6,
18};
19
20enum _dsm_rst_type {
21 HNS_DSAF_RESET_FUNC = 0x1,
22 HNS_PPE_RESET_FUNC = 0x2,
23 HNS_XGE_RESET_FUNC = 0x4,
24 HNS_GE_RESET_FUNC = 0x5,
25 HNS_DSAF_CHN_RESET_FUNC = 0x6,
26 HNS_ROCE_RESET_FUNC = 0x7,
27};
28
29static const guid_t hns_dsaf_acpi_dsm_guid =
30 GUID_INIT(0x1A85AA1A, 0xE293, 0x415E,
31 0x8E, 0x28, 0x8D, 0x69, 0x0A, 0x0F, 0x82, 0x0A);
32
33static void dsaf_write_sub(struct dsaf_device *dsaf_dev, u32 reg, u32 val)
34{
35 if (dsaf_dev->sub_ctrl)
36 dsaf_write_syscon(base: dsaf_dev->sub_ctrl, reg, value: val);
37 else
38 dsaf_write_reg(base: dsaf_dev->sc_base, reg, value: val);
39}
40
41static u32 dsaf_read_sub(struct dsaf_device *dsaf_dev, u32 reg)
42{
43 u32 ret = 0;
44 int err;
45
46 if (dsaf_dev->sub_ctrl) {
47 err = dsaf_read_syscon(base: dsaf_dev->sub_ctrl, reg, val: &ret);
48 if (err)
49 dev_err(dsaf_dev->dev, "dsaf_read_syscon error %d!\n",
50 err);
51 } else {
52 ret = dsaf_read_reg(base: dsaf_dev->sc_base, reg);
53 }
54
55 return ret;
56}
57
58static void hns_dsaf_acpi_ledctrl_by_port(struct hns_mac_cb *mac_cb, u8 op_type,
59 u32 link, u32 port, u32 act)
60{
61 union acpi_object *obj;
62 union acpi_object obj_args[3], argv4;
63
64 obj_args[0].integer.type = ACPI_TYPE_INTEGER;
65 obj_args[0].integer.value = link;
66 obj_args[1].integer.type = ACPI_TYPE_INTEGER;
67 obj_args[1].integer.value = port;
68 obj_args[2].integer.type = ACPI_TYPE_INTEGER;
69 obj_args[2].integer.value = act;
70
71 argv4.type = ACPI_TYPE_PACKAGE;
72 argv4.package.count = 3;
73 argv4.package.elements = obj_args;
74
75 obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev),
76 guid: &hns_dsaf_acpi_dsm_guid, rev: 0, func: op_type, argv4: &argv4);
77 if (!obj) {
78 dev_warn(mac_cb->dev, "ledctrl fail, link:%d port:%d act:%d!\n",
79 link, port, act);
80 return;
81 }
82
83 ACPI_FREE(obj);
84}
85
86static void hns_dsaf_acpi_locate_ledctrl_by_port(struct hns_mac_cb *mac_cb,
87 u8 op_type, u32 locate,
88 u32 port)
89{
90 union acpi_object obj_args[2], argv4;
91 union acpi_object *obj;
92
93 obj_args[0].integer.type = ACPI_TYPE_INTEGER;
94 obj_args[0].integer.value = locate;
95 obj_args[1].integer.type = ACPI_TYPE_INTEGER;
96 obj_args[1].integer.value = port;
97
98 argv4.type = ACPI_TYPE_PACKAGE;
99 argv4.package.count = 2;
100 argv4.package.elements = obj_args;
101
102 obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev),
103 guid: &hns_dsaf_acpi_dsm_guid, rev: 0, func: op_type, argv4: &argv4);
104 if (!obj) {
105 dev_err(mac_cb->dev, "ledctrl fail, locate:%d port:%d!\n",
106 locate, port);
107 return;
108 }
109
110 ACPI_FREE(obj);
111}
112
113static void hns_cpld_set_led(struct hns_mac_cb *mac_cb, int link_status,
114 u16 speed, int data)
115{
116 int speed_reg = 0;
117 u8 value;
118
119 if (!mac_cb) {
120 pr_err("sfp_led_opt mac_dev is null!\n");
121 return;
122 }
123 if (!mac_cb->cpld_ctrl) {
124 dev_err(mac_cb->dev, "mac_id=%d, cpld syscon is null !\n",
125 mac_cb->mac_id);
126 return;
127 }
128
129 if (speed == MAC_SPEED_10000)
130 speed_reg = 1;
131
132 value = mac_cb->cpld_led_value;
133
134 if (link_status) {
135 dsaf_set_bit(value, DSAF_LED_LINK_B, link_status);
136 dsaf_set_field(value, DSAF_LED_SPEED_M,
137 DSAF_LED_SPEED_S, speed_reg);
138 dsaf_set_bit(value, DSAF_LED_DATA_B, data);
139
140 if (value != mac_cb->cpld_led_value) {
141 dsaf_write_syscon(base: mac_cb->cpld_ctrl,
142 reg: mac_cb->cpld_ctrl_reg, value);
143 mac_cb->cpld_led_value = value;
144 }
145 } else {
146 value = (mac_cb->cpld_led_value) & (0x1 << DSAF_LED_ANCHOR_B);
147 dsaf_write_syscon(base: mac_cb->cpld_ctrl,
148 reg: mac_cb->cpld_ctrl_reg, value);
149 mac_cb->cpld_led_value = value;
150 }
151}
152
153static void hns_cpld_set_led_acpi(struct hns_mac_cb *mac_cb, int link_status,
154 u16 speed, int data)
155{
156 if (!mac_cb) {
157 pr_err("cpld_led_set mac_cb is null!\n");
158 return;
159 }
160
161 hns_dsaf_acpi_ledctrl_by_port(mac_cb, op_type: HNS_OP_LED_SET_FUNC,
162 link: link_status, port: mac_cb->mac_id, act: data);
163}
164
165static void cpld_led_reset(struct hns_mac_cb *mac_cb)
166{
167 if (!mac_cb || !mac_cb->cpld_ctrl)
168 return;
169
170 dsaf_write_syscon(base: mac_cb->cpld_ctrl, reg: mac_cb->cpld_ctrl_reg,
171 CPLD_LED_DEFAULT_VALUE);
172 mac_cb->cpld_led_value = CPLD_LED_DEFAULT_VALUE;
173}
174
175static void cpld_led_reset_acpi(struct hns_mac_cb *mac_cb)
176{
177 if (!mac_cb) {
178 pr_err("cpld_led_reset mac_cb is null!\n");
179 return;
180 }
181
182 if (mac_cb->media_type != HNAE_MEDIA_TYPE_FIBER)
183 return;
184
185 hns_dsaf_acpi_ledctrl_by_port(mac_cb, op_type: HNS_OP_LED_SET_FUNC,
186 link: 0, port: mac_cb->mac_id, act: 0);
187}
188
189static int cpld_set_led_id(struct hns_mac_cb *mac_cb,
190 enum hnae_led_state status)
191{
192 u32 val = 0;
193 int ret;
194
195 if (!mac_cb->cpld_ctrl)
196 return 0;
197
198 switch (status) {
199 case HNAE_LED_ACTIVE:
200 ret = dsaf_read_syscon(base: mac_cb->cpld_ctrl, reg: mac_cb->cpld_ctrl_reg,
201 val: &val);
202 if (ret)
203 return ret;
204
205 dsaf_set_bit(val, DSAF_LED_ANCHOR_B, CPLD_LED_ON_VALUE);
206 dsaf_write_syscon(base: mac_cb->cpld_ctrl, reg: mac_cb->cpld_ctrl_reg,
207 value: val);
208 mac_cb->cpld_led_value = val;
209 break;
210 case HNAE_LED_INACTIVE:
211 dsaf_set_bit(mac_cb->cpld_led_value, DSAF_LED_ANCHOR_B,
212 CPLD_LED_DEFAULT_VALUE);
213 dsaf_write_syscon(base: mac_cb->cpld_ctrl, reg: mac_cb->cpld_ctrl_reg,
214 value: mac_cb->cpld_led_value);
215 break;
216 default:
217 dev_err(mac_cb->dev, "invalid led state: %d!", status);
218 return -EINVAL;
219 }
220
221 return 0;
222}
223
224static int cpld_set_led_id_acpi(struct hns_mac_cb *mac_cb,
225 enum hnae_led_state status)
226{
227 switch (status) {
228 case HNAE_LED_ACTIVE:
229 hns_dsaf_acpi_locate_ledctrl_by_port(mac_cb,
230 op_type: HNS_OP_LOCATE_LED_SET_FUNC,
231 CPLD_LED_ON_VALUE,
232 port: mac_cb->mac_id);
233 break;
234 case HNAE_LED_INACTIVE:
235 hns_dsaf_acpi_locate_ledctrl_by_port(mac_cb,
236 op_type: HNS_OP_LOCATE_LED_SET_FUNC,
237 CPLD_LED_DEFAULT_VALUE,
238 port: mac_cb->mac_id);
239 break;
240 default:
241 dev_err(mac_cb->dev, "invalid led state: %d!", status);
242 return -EINVAL;
243 }
244
245 return 0;
246}
247
248#define RESET_REQ_OR_DREQ 1
249
250static void hns_dsaf_acpi_srst_by_port(struct dsaf_device *dsaf_dev, u8 op_type,
251 u32 port_type, u32 port, u32 val)
252{
253 union acpi_object *obj;
254 union acpi_object obj_args[3], argv4;
255
256 obj_args[0].integer.type = ACPI_TYPE_INTEGER;
257 obj_args[0].integer.value = port_type;
258 obj_args[1].integer.type = ACPI_TYPE_INTEGER;
259 obj_args[1].integer.value = port;
260 obj_args[2].integer.type = ACPI_TYPE_INTEGER;
261 obj_args[2].integer.value = val;
262
263 argv4.type = ACPI_TYPE_PACKAGE;
264 argv4.package.count = 3;
265 argv4.package.elements = obj_args;
266
267 obj = acpi_evaluate_dsm(ACPI_HANDLE(dsaf_dev->dev),
268 guid: &hns_dsaf_acpi_dsm_guid, rev: 0, func: op_type, argv4: &argv4);
269 if (!obj) {
270 dev_warn(dsaf_dev->dev, "reset port_type%d port%d fail!",
271 port_type, port);
272 return;
273 }
274
275 ACPI_FREE(obj);
276}
277
278static void hns_dsaf_rst(struct dsaf_device *dsaf_dev, bool dereset)
279{
280 u32 xbar_reg_addr;
281 u32 nt_reg_addr;
282
283 if (!dereset) {
284 xbar_reg_addr = DSAF_SUB_SC_XBAR_RESET_REQ_REG;
285 nt_reg_addr = DSAF_SUB_SC_NT_RESET_REQ_REG;
286 } else {
287 xbar_reg_addr = DSAF_SUB_SC_XBAR_RESET_DREQ_REG;
288 nt_reg_addr = DSAF_SUB_SC_NT_RESET_DREQ_REG;
289 }
290
291 dsaf_write_sub(dsaf_dev, reg: xbar_reg_addr, RESET_REQ_OR_DREQ);
292 dsaf_write_sub(dsaf_dev, reg: nt_reg_addr, RESET_REQ_OR_DREQ);
293}
294
295static void hns_dsaf_rst_acpi(struct dsaf_device *dsaf_dev, bool dereset)
296{
297 hns_dsaf_acpi_srst_by_port(dsaf_dev, op_type: HNS_OP_RESET_FUNC,
298 port_type: HNS_DSAF_RESET_FUNC,
299 port: 0, val: dereset);
300}
301
302static void hns_dsaf_xge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port,
303 bool dereset)
304{
305 u32 reg_val = 0;
306 u32 reg_addr;
307
308 if (port >= DSAF_XGE_NUM)
309 return;
310
311 reg_val |= RESET_REQ_OR_DREQ;
312 reg_val |= 0x2082082 << dsaf_dev->mac_cb[port]->port_rst_off;
313
314 if (!dereset)
315 reg_addr = DSAF_SUB_SC_XGE_RESET_REQ_REG;
316 else
317 reg_addr = DSAF_SUB_SC_XGE_RESET_DREQ_REG;
318
319 dsaf_write_sub(dsaf_dev, reg: reg_addr, val: reg_val);
320}
321
322static void hns_dsaf_xge_srst_by_port_acpi(struct dsaf_device *dsaf_dev,
323 u32 port, bool dereset)
324{
325 hns_dsaf_acpi_srst_by_port(dsaf_dev, op_type: HNS_OP_RESET_FUNC,
326 port_type: HNS_XGE_RESET_FUNC, port, val: dereset);
327}
328
329/**
330 * hns_dsaf_srst_chns - reset dsaf channels
331 * @dsaf_dev: dsaf device struct pointer
332 * @msk: xbar channels mask value:
333 * @dereset: false - request reset , true - drop reset
334 *
335 * bit0-5 for xge0-5
336 * bit6-11 for ppe0-5
337 * bit12-17 for roce0-5
338 * bit18-19 for com/dfx
339 */
340static void
341hns_dsaf_srst_chns(struct dsaf_device *dsaf_dev, u32 msk, bool dereset)
342{
343 u32 reg_addr;
344
345 if (!dereset)
346 reg_addr = DSAF_SUB_SC_DSAF_RESET_REQ_REG;
347 else
348 reg_addr = DSAF_SUB_SC_DSAF_RESET_DREQ_REG;
349
350 dsaf_write_sub(dsaf_dev, reg: reg_addr, val: msk);
351}
352
353/**
354 * hns_dsaf_srst_chns_acpi - reset dsaf channels
355 * @dsaf_dev: dsaf device struct pointer
356 * @msk: xbar channels mask value:
357 * @dereset: false - request reset , true - drop reset
358 *
359 * bit0-5 for xge0-5
360 * bit6-11 for ppe0-5
361 * bit12-17 for roce0-5
362 * bit18-19 for com/dfx
363 */
364static void
365hns_dsaf_srst_chns_acpi(struct dsaf_device *dsaf_dev, u32 msk, bool dereset)
366{
367 hns_dsaf_acpi_srst_by_port(dsaf_dev, op_type: HNS_OP_RESET_FUNC,
368 port_type: HNS_DSAF_CHN_RESET_FUNC,
369 port: msk, val: dereset);
370}
371
372static void hns_dsaf_roce_srst(struct dsaf_device *dsaf_dev, bool dereset)
373{
374 if (!dereset) {
375 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_ROCEE_RESET_REQ_REG, val: 1);
376 } else {
377 dsaf_write_sub(dsaf_dev,
378 DSAF_SUB_SC_ROCEE_CLK_DIS_REG, val: 1);
379 dsaf_write_sub(dsaf_dev,
380 DSAF_SUB_SC_ROCEE_RESET_DREQ_REG, val: 1);
381 msleep(msecs: 20);
382 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_ROCEE_CLK_EN_REG, val: 1);
383 }
384}
385
386static void hns_dsaf_roce_srst_acpi(struct dsaf_device *dsaf_dev, bool dereset)
387{
388 hns_dsaf_acpi_srst_by_port(dsaf_dev, op_type: HNS_OP_RESET_FUNC,
389 port_type: HNS_ROCE_RESET_FUNC, port: 0, val: dereset);
390}
391
392static void hns_dsaf_ge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port,
393 bool dereset)
394{
395 u32 reg_val_1;
396 u32 reg_val_2;
397 u32 port_rst_off;
398
399 if (port >= DSAF_GE_NUM)
400 return;
401
402 if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) {
403 /* DSAF_MAX_PORT_NUM is 6, but DSAF_GE_NUM is 8.
404 We need check to prevent array overflow */
405 if (port >= DSAF_MAX_PORT_NUM)
406 return;
407 reg_val_1 = 0x1 << port;
408 port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;
409 /* there is difference between V1 and V2 in register.*/
410 reg_val_2 = AE_IS_VER1(dsaf_dev->dsaf_ver) ?
411 0x1041041 : 0x2082082;
412 reg_val_2 <<= port_rst_off;
413
414 if (!dereset) {
415 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ1_REG,
416 val: reg_val_1);
417
418 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ0_REG,
419 val: reg_val_2);
420 } else {
421 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ0_REG,
422 val: reg_val_2);
423
424 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ1_REG,
425 val: reg_val_1);
426 }
427 } else {
428 reg_val_1 = 0x15540;
429 reg_val_2 = AE_IS_VER1(dsaf_dev->dsaf_ver) ? 0x100 : 0x40;
430
431 reg_val_1 <<= dsaf_dev->reset_offset;
432 reg_val_2 <<= dsaf_dev->reset_offset;
433
434 if (!dereset) {
435 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ1_REG,
436 val: reg_val_1);
437
438 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_PPE_RESET_REQ_REG,
439 val: reg_val_2);
440 } else {
441 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ1_REG,
442 val: reg_val_1);
443
444 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_PPE_RESET_DREQ_REG,
445 val: reg_val_2);
446 }
447 }
448}
449
450static void hns_dsaf_ge_srst_by_port_acpi(struct dsaf_device *dsaf_dev,
451 u32 port, bool dereset)
452{
453 hns_dsaf_acpi_srst_by_port(dsaf_dev, op_type: HNS_OP_RESET_FUNC,
454 port_type: HNS_GE_RESET_FUNC, port, val: dereset);
455}
456
457static void hns_ppe_srst_by_port(struct dsaf_device *dsaf_dev, u32 port,
458 bool dereset)
459{
460 u32 reg_val = 0;
461 u32 reg_addr;
462
463 reg_val |= RESET_REQ_OR_DREQ << dsaf_dev->mac_cb[port]->port_rst_off;
464
465 if (!dereset)
466 reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG;
467 else
468 reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG;
469
470 dsaf_write_sub(dsaf_dev, reg: reg_addr, val: reg_val);
471}
472
473static void
474hns_ppe_srst_by_port_acpi(struct dsaf_device *dsaf_dev, u32 port, bool dereset)
475{
476 hns_dsaf_acpi_srst_by_port(dsaf_dev, op_type: HNS_OP_RESET_FUNC,
477 port_type: HNS_PPE_RESET_FUNC, port, val: dereset);
478}
479
480static void hns_ppe_com_srst(struct dsaf_device *dsaf_dev, bool dereset)
481{
482 u32 reg_val;
483 u32 reg_addr;
484
485 if (!(dev_of_node(dev: dsaf_dev->dev)))
486 return;
487
488 if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) {
489 reg_val = RESET_REQ_OR_DREQ;
490 if (!dereset)
491 reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_REQ_REG;
492 else
493 reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_DREQ_REG;
494
495 } else {
496 reg_val = 0x100 << dsaf_dev->reset_offset;
497
498 if (!dereset)
499 reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG;
500 else
501 reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG;
502 }
503
504 dsaf_write_sub(dsaf_dev, reg: reg_addr, val: reg_val);
505}
506
507/**
508 * hns_mac_get_phy_if - get phy ifterface form serdes mode
509 * @mac_cb: mac control block
510 * retuen phy interface
511 */
512static phy_interface_t hns_mac_get_phy_if(struct hns_mac_cb *mac_cb)
513{
514 u32 mode;
515 u32 reg;
516 bool is_ver1 = AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver);
517 int mac_id = mac_cb->mac_id;
518 phy_interface_t phy_if;
519
520 if (is_ver1) {
521 if (HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev))
522 return PHY_INTERFACE_MODE_SGMII;
523
524 if (mac_id >= 0 && mac_id <= 3)
525 reg = HNS_MAC_HILINK4_REG;
526 else
527 reg = HNS_MAC_HILINK3_REG;
528 } else {
529 if (!HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev) && mac_id <= 3)
530 reg = HNS_MAC_HILINK4V2_REG;
531 else
532 reg = HNS_MAC_HILINK3V2_REG;
533 }
534
535 mode = dsaf_read_sub(dsaf_dev: mac_cb->dsaf_dev, reg);
536 if (dsaf_get_bit(mode, mac_cb->port_mode_off))
537 phy_if = PHY_INTERFACE_MODE_XGMII;
538 else
539 phy_if = PHY_INTERFACE_MODE_SGMII;
540
541 return phy_if;
542}
543
544static phy_interface_t hns_mac_get_phy_if_acpi(struct hns_mac_cb *mac_cb)
545{
546 phy_interface_t phy_if = PHY_INTERFACE_MODE_NA;
547 union acpi_object *obj;
548 union acpi_object obj_args, argv4;
549
550 obj_args.integer.type = ACPI_TYPE_INTEGER;
551 obj_args.integer.value = mac_cb->mac_id;
552
553 argv4.type = ACPI_TYPE_PACKAGE;
554 argv4.package.count = 1;
555 argv4.package.elements = &obj_args;
556
557 obj = acpi_evaluate_dsm_typed(ACPI_HANDLE(mac_cb->dev),
558 guid: &hns_dsaf_acpi_dsm_guid, rev: 0,
559 func: HNS_OP_GET_PORT_TYPE_FUNC, argv4: &argv4,
560 ACPI_TYPE_INTEGER);
561 if (!obj)
562 return phy_if;
563
564 phy_if = obj->integer.value ?
565 PHY_INTERFACE_MODE_XGMII : PHY_INTERFACE_MODE_SGMII;
566
567 dev_dbg(mac_cb->dev, "mac_id=%d, phy_if=%d\n", mac_cb->mac_id, phy_if);
568
569 ACPI_FREE(obj);
570
571 return phy_if;
572}
573
574static int hns_mac_get_sfp_prsnt(struct hns_mac_cb *mac_cb, int *sfp_prsnt)
575{
576 u32 val = 0;
577 int ret;
578
579 if (!mac_cb->cpld_ctrl)
580 return -ENODEV;
581
582 ret = dsaf_read_syscon(base: mac_cb->cpld_ctrl,
583 reg: mac_cb->cpld_ctrl_reg + MAC_SFP_PORT_OFFSET,
584 val: &val);
585 if (ret)
586 return ret;
587
588 *sfp_prsnt = !val;
589 return 0;
590}
591
592static int hns_mac_get_sfp_prsnt_acpi(struct hns_mac_cb *mac_cb, int *sfp_prsnt)
593{
594 union acpi_object *obj;
595 union acpi_object obj_args, argv4;
596
597 obj_args.integer.type = ACPI_TYPE_INTEGER;
598 obj_args.integer.value = mac_cb->mac_id;
599
600 argv4.type = ACPI_TYPE_PACKAGE;
601 argv4.package.count = 1;
602 argv4.package.elements = &obj_args;
603
604 obj = acpi_evaluate_dsm_typed(ACPI_HANDLE(mac_cb->dev),
605 guid: &hns_dsaf_acpi_dsm_guid, rev: 0,
606 func: HNS_OP_GET_SFP_STAT_FUNC, argv4: &argv4,
607 ACPI_TYPE_INTEGER);
608 if (!obj)
609 return -ENODEV;
610
611 *sfp_prsnt = obj->integer.value;
612
613 ACPI_FREE(obj);
614
615 return 0;
616}
617
618/**
619 * hns_mac_config_sds_loopback - set loop back for serdes
620 * @mac_cb: mac control block
621 * @en: enable or disable
622 * return 0 == success
623 */
624static int hns_mac_config_sds_loopback(struct hns_mac_cb *mac_cb, bool en)
625{
626 const u8 lane_id[] = {
627 0, /* mac 0 -> lane 0 */
628 1, /* mac 1 -> lane 1 */
629 2, /* mac 2 -> lane 2 */
630 3, /* mac 3 -> lane 3 */
631 2, /* mac 4 -> lane 2 */
632 3, /* mac 5 -> lane 3 */
633 0, /* mac 6 -> lane 0 */
634 1 /* mac 7 -> lane 1 */
635 };
636#define RX_CSR(lane, reg) ((0x4080 + (reg) * 0x0002 + (lane) * 0x0200) * 2)
637 u64 reg_offset = RX_CSR(lane_id[mac_cb->mac_id], 0);
638
639 int sfp_prsnt = 0;
640 int ret = hns_mac_get_sfp_prsnt(mac_cb, sfp_prsnt: &sfp_prsnt);
641
642 if (!mac_cb->phy_dev) {
643 if (ret)
644 pr_info("please confirm sfp is present or not\n");
645 else
646 if (!sfp_prsnt)
647 pr_info("no sfp in this eth\n");
648 }
649
650 if (mac_cb->serdes_ctrl) {
651 u32 origin = 0;
652
653 if (!AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver)) {
654#define HILINK_ACCESS_SEL_CFG 0x40008
655 /* hilink4 & hilink3 use the same xge training and
656 * xge u adaptor. There is a hilink access sel cfg
657 * register to select which one to be configed
658 */
659 if ((!HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev)) &&
660 (mac_cb->mac_id <= 3))
661 dsaf_write_syscon(base: mac_cb->serdes_ctrl,
662 HILINK_ACCESS_SEL_CFG, value: 0);
663 else
664 dsaf_write_syscon(base: mac_cb->serdes_ctrl,
665 HILINK_ACCESS_SEL_CFG, value: 3);
666 }
667
668 ret = dsaf_read_syscon(base: mac_cb->serdes_ctrl, reg: reg_offset,
669 val: &origin);
670 if (ret)
671 return ret;
672
673 dsaf_set_field(origin, 1ull << 10, 10, en);
674 dsaf_write_syscon(base: mac_cb->serdes_ctrl, reg: reg_offset, value: origin);
675 } else {
676 u8 __iomem *base_addr = mac_cb->serdes_vaddr +
677 (mac_cb->mac_id <= 3 ? 0x00280000 : 0x00200000);
678 dsaf_set_reg_field(base: base_addr, reg: reg_offset, mask: 1ull << 10, shift: 10, val: en);
679 }
680
681 return 0;
682}
683
684static int
685hns_mac_config_sds_loopback_acpi(struct hns_mac_cb *mac_cb, bool en)
686{
687 union acpi_object *obj;
688 union acpi_object obj_args[3], argv4;
689
690 obj_args[0].integer.type = ACPI_TYPE_INTEGER;
691 obj_args[0].integer.value = mac_cb->mac_id;
692 obj_args[1].integer.type = ACPI_TYPE_INTEGER;
693 obj_args[1].integer.value = en;
694
695 argv4.type = ACPI_TYPE_PACKAGE;
696 argv4.package.count = 2;
697 argv4.package.elements = obj_args;
698
699 obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dsaf_dev->dev),
700 guid: &hns_dsaf_acpi_dsm_guid, rev: 0,
701 func: HNS_OP_SERDES_LP_FUNC, argv4: &argv4);
702 if (!obj) {
703 dev_warn(mac_cb->dsaf_dev->dev, "set port%d serdes lp fail!",
704 mac_cb->mac_id);
705
706 return -ENOTSUPP;
707 }
708
709 ACPI_FREE(obj);
710
711 return 0;
712}
713
714struct dsaf_misc_op *hns_misc_op_get(struct dsaf_device *dsaf_dev)
715{
716 struct dsaf_misc_op *misc_op;
717
718 misc_op = devm_kzalloc(dev: dsaf_dev->dev, size: sizeof(*misc_op), GFP_KERNEL);
719 if (!misc_op)
720 return NULL;
721
722 if (dev_of_node(dev: dsaf_dev->dev)) {
723 misc_op->cpld_set_led = hns_cpld_set_led;
724 misc_op->cpld_reset_led = cpld_led_reset;
725 misc_op->cpld_set_led_id = cpld_set_led_id;
726
727 misc_op->dsaf_reset = hns_dsaf_rst;
728 misc_op->xge_srst = hns_dsaf_xge_srst_by_port;
729 misc_op->ge_srst = hns_dsaf_ge_srst_by_port;
730 misc_op->ppe_srst = hns_ppe_srst_by_port;
731 misc_op->ppe_comm_srst = hns_ppe_com_srst;
732 misc_op->hns_dsaf_srst_chns = hns_dsaf_srst_chns;
733 misc_op->hns_dsaf_roce_srst = hns_dsaf_roce_srst;
734
735 misc_op->get_phy_if = hns_mac_get_phy_if;
736 misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt;
737
738 misc_op->cfg_serdes_loopback = hns_mac_config_sds_loopback;
739 } else if (is_acpi_node(fwnode: dsaf_dev->dev->fwnode)) {
740 misc_op->cpld_set_led = hns_cpld_set_led_acpi;
741 misc_op->cpld_reset_led = cpld_led_reset_acpi;
742 misc_op->cpld_set_led_id = cpld_set_led_id_acpi;
743
744 misc_op->dsaf_reset = hns_dsaf_rst_acpi;
745 misc_op->xge_srst = hns_dsaf_xge_srst_by_port_acpi;
746 misc_op->ge_srst = hns_dsaf_ge_srst_by_port_acpi;
747 misc_op->ppe_srst = hns_ppe_srst_by_port_acpi;
748 misc_op->ppe_comm_srst = hns_ppe_com_srst;
749 misc_op->hns_dsaf_srst_chns = hns_dsaf_srst_chns_acpi;
750 misc_op->hns_dsaf_roce_srst = hns_dsaf_roce_srst_acpi;
751
752 misc_op->get_phy_if = hns_mac_get_phy_if_acpi;
753 misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt_acpi;
754
755 misc_op->cfg_serdes_loopback = hns_mac_config_sds_loopback_acpi;
756 } else {
757 devm_kfree(dev: dsaf_dev->dev, p: (void *)misc_op);
758 misc_op = NULL;
759 }
760
761 return (void *)misc_op;
762}
763
764struct
765platform_device *hns_dsaf_find_platform_device(struct fwnode_handle *fwnode)
766{
767 struct device *dev;
768
769 dev = bus_find_device_by_fwnode(bus: &platform_bus_type, fwnode);
770 return dev ? to_platform_device(dev) : NULL;
771}
772

source code of linux/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c