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Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[cris-mirror.git] / drivers / net / ethernet / hisilicon / hns / hns_dsaf_mac.c
blob5c8afe1a5ccb1d35c0e545c92212e3b7c2428ac9
1 /*
2 * Copyright (c) 2014-2015 Hisilicon Limited.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 */
9
10 #include <linux/acpi.h>
11 #include <linux/init.h>
12 #include <linux/interrupt.h>
13 #include <linux/kernel.h>
14 #include <linux/mfd/syscon.h>
15 #include <linux/module.h>
16 #include <linux/netdevice.h>
17 #include <linux/of.h>
18 #include <linux/of_address.h>
19 #include <linux/of_mdio.h>
20 #include <linux/phy.h>
21 #include <linux/platform_device.h>
22
23 #include "hns_dsaf_main.h"
24 #include "hns_dsaf_misc.h"
25 #include "hns_dsaf_rcb.h"
26
27 #define MAC_EN_FLAG_V 0xada0328
28
29 static const u16 mac_phy_to_speed[] = {
30 [PHY_INTERFACE_MODE_MII] = MAC_SPEED_100,
31 [PHY_INTERFACE_MODE_GMII] = MAC_SPEED_1000,
32 [PHY_INTERFACE_MODE_SGMII] = MAC_SPEED_1000,
33 [PHY_INTERFACE_MODE_TBI] = MAC_SPEED_1000,
34 [PHY_INTERFACE_MODE_RMII] = MAC_SPEED_100,
35 [PHY_INTERFACE_MODE_RGMII] = MAC_SPEED_1000,
36 [PHY_INTERFACE_MODE_RGMII_ID] = MAC_SPEED_1000,
37 [PHY_INTERFACE_MODE_RGMII_RXID] = MAC_SPEED_1000,
38 [PHY_INTERFACE_MODE_RGMII_TXID] = MAC_SPEED_1000,
39 [PHY_INTERFACE_MODE_RTBI] = MAC_SPEED_1000,
40 [PHY_INTERFACE_MODE_XGMII] = MAC_SPEED_10000
41 };
42
43 static const enum mac_mode g_mac_mode_100[] = {
44 [PHY_INTERFACE_MODE_MII] = MAC_MODE_MII_100,
45 [PHY_INTERFACE_MODE_RMII] = MAC_MODE_RMII_100
46 };
47
48 static const enum mac_mode g_mac_mode_1000[] = {
49 [PHY_INTERFACE_MODE_GMII] = MAC_MODE_GMII_1000,
50 [PHY_INTERFACE_MODE_SGMII] = MAC_MODE_SGMII_1000,
51 [PHY_INTERFACE_MODE_TBI] = MAC_MODE_TBI_1000,
52 [PHY_INTERFACE_MODE_RGMII] = MAC_MODE_RGMII_1000,
53 [PHY_INTERFACE_MODE_RGMII_ID] = MAC_MODE_RGMII_1000,
54 [PHY_INTERFACE_MODE_RGMII_RXID] = MAC_MODE_RGMII_1000,
55 [PHY_INTERFACE_MODE_RGMII_TXID] = MAC_MODE_RGMII_1000,
56 [PHY_INTERFACE_MODE_RTBI] = MAC_MODE_RTBI_1000
57 };
58
59 static enum mac_mode hns_get_enet_interface(const struct hns_mac_cb *mac_cb)
60 {
61 switch (mac_cb->max_speed) {
62 case MAC_SPEED_100:
63 return g_mac_mode_100[mac_cb->phy_if];
64 case MAC_SPEED_1000:
65 return g_mac_mode_1000[mac_cb->phy_if];
66 case MAC_SPEED_10000:
67 return MAC_MODE_XGMII_10000;
68 default:
69 return MAC_MODE_MII_100;
70 }
71 }
72
73 void hns_mac_get_link_status(struct hns_mac_cb *mac_cb, u32 *link_status)
74 {
75 struct mac_driver *mac_ctrl_drv;
76 int ret, sfp_prsnt;
77
78 mac_ctrl_drv = hns_mac_get_drv(mac_cb);
79
80 if (mac_ctrl_drv->get_link_status)
81 mac_ctrl_drv->get_link_status(mac_ctrl_drv, link_status);
82 else
83 *link_status = 0;
84
85 ret = mac_cb->dsaf_dev->misc_op->get_sfp_prsnt(mac_cb, &sfp_prsnt);
86 if (!ret)
87 *link_status = *link_status && sfp_prsnt;
88
89 mac_cb->link = *link_status;
90 }
91
92 int hns_mac_get_port_info(struct hns_mac_cb *mac_cb,
93 u8 *auto_neg, u16 *speed, u8 *duplex)
94 {
95 struct mac_driver *mac_ctrl_drv;
96 struct mac_info info;
97
98 mac_ctrl_drv = hns_mac_get_drv(mac_cb);
99
100 if (!mac_ctrl_drv->get_info)
101 return -ENODEV;
102
103 mac_ctrl_drv->get_info(mac_ctrl_drv, &info);
104 if (auto_neg)
105 *auto_neg = info.auto_neg;
106 if (speed)
107 *speed = info.speed;
108 if (duplex)
109 *duplex = info.duplex;
110
111 return 0;
112 }
113
114 void hns_mac_adjust_link(struct hns_mac_cb *mac_cb, int speed, int duplex)
115 {
116 int ret;
117 struct mac_driver *mac_ctrl_drv;
118
119 mac_ctrl_drv = (struct mac_driver *)(mac_cb->priv.mac);
120
121 mac_cb->speed = speed;
122 mac_cb->half_duplex = !duplex;
123
124 if (mac_ctrl_drv->adjust_link) {
125 ret = mac_ctrl_drv->adjust_link(mac_ctrl_drv,
126 (enum mac_speed)speed, duplex);
127 if (ret) {
128 dev_err(mac_cb->dev,
129 "adjust_link failed,%s mac%d ret = %#x!\n",
130 mac_cb->dsaf_dev->ae_dev.name,
131 mac_cb->mac_id, ret);
132 return;
133 }
134 }
135 }
136
137 /**
138 *hns_mac_get_inner_port_num - get mac table inner port number
139 *@mac_cb: mac device
140 *@vmid: vm id
141 *@port_num:port number
142 *
143 */
144 static int hns_mac_get_inner_port_num(struct hns_mac_cb *mac_cb,
145 u8 vmid, u8 *port_num)
146 {
147 u8 tmp_port;
148
149 if (mac_cb->dsaf_dev->dsaf_mode <= DSAF_MODE_ENABLE) {
150 if (mac_cb->mac_id != DSAF_MAX_PORT_NUM) {
151 dev_err(mac_cb->dev,
152 "input invalid,%s mac%d vmid%d !\n",
153 mac_cb->dsaf_dev->ae_dev.name,
154 mac_cb->mac_id, vmid);
155 return -EINVAL;
156 }
157 } else if (mac_cb->dsaf_dev->dsaf_mode < DSAF_MODE_MAX) {
158 if (mac_cb->mac_id >= DSAF_MAX_PORT_NUM) {
159 dev_err(mac_cb->dev,
160 "input invalid,%s mac%d vmid%d!\n",
161 mac_cb->dsaf_dev->ae_dev.name,
162 mac_cb->mac_id, vmid);
163 return -EINVAL;
164 }
165 } else {
166 dev_err(mac_cb->dev, "dsaf mode invalid,%s mac%d!\n",
167 mac_cb->dsaf_dev->ae_dev.name, mac_cb->mac_id);
168 return -EINVAL;
169 }
170
171 if (vmid >= mac_cb->dsaf_dev->rcb_common[0]->max_vfn) {
172 dev_err(mac_cb->dev, "input invalid,%s mac%d vmid%d !\n",
173 mac_cb->dsaf_dev->ae_dev.name, mac_cb->mac_id, vmid);
174 return -EINVAL;
175 }
176
177 switch (mac_cb->dsaf_dev->dsaf_mode) {
178 case DSAF_MODE_ENABLE_FIX:
179 tmp_port = 0;
180 break;
181 case DSAF_MODE_DISABLE_FIX:
182 tmp_port = 0;
183 break;
184 case DSAF_MODE_ENABLE_0VM:
185 case DSAF_MODE_ENABLE_8VM:
186 case DSAF_MODE_ENABLE_16VM:
187 case DSAF_MODE_ENABLE_32VM:
188 case DSAF_MODE_ENABLE_128VM:
189 case DSAF_MODE_DISABLE_2PORT_8VM:
190 case DSAF_MODE_DISABLE_2PORT_16VM:
191 case DSAF_MODE_DISABLE_2PORT_64VM:
192 case DSAF_MODE_DISABLE_6PORT_0VM:
193 case DSAF_MODE_DISABLE_6PORT_2VM:
194 case DSAF_MODE_DISABLE_6PORT_4VM:
195 case DSAF_MODE_DISABLE_6PORT_16VM:
196 tmp_port = vmid;
197 break;
198 default:
199 dev_err(mac_cb->dev, "dsaf mode invalid,%s mac%d!\n",
200 mac_cb->dsaf_dev->ae_dev.name, mac_cb->mac_id);
201 return -EINVAL;
202 }
203 tmp_port += DSAF_BASE_INNER_PORT_NUM;
204
205 *port_num = tmp_port;
206
207 return 0;
208 }
209
210 /**
211 *hns_mac_change_vf_addr - change vf mac address
212 *@mac_cb: mac device
213 *@vmid: vmid
214 *@addr:mac address
215 */
216 int hns_mac_change_vf_addr(struct hns_mac_cb *mac_cb,
217 u32 vmid, char *addr)
218 {
219 int ret;
220 struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);
221 struct dsaf_device *dsaf_dev = mac_cb->dsaf_dev;
222 struct dsaf_drv_mac_single_dest_entry mac_entry;
223 struct mac_entry_idx *old_entry;
224
225 old_entry = &mac_cb->addr_entry_idx[vmid];
226 if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) {
227 memcpy(mac_entry.addr, addr, sizeof(mac_entry.addr));
228 mac_entry.in_vlan_id = old_entry->vlan_id;
229 mac_entry.in_port_num = mac_cb->mac_id;
230 ret = hns_mac_get_inner_port_num(mac_cb, (u8)vmid,
231 &mac_entry.port_num);
232 if (ret)
233 return ret;
234
235 if ((old_entry->valid != 0) &&
236 (memcmp(old_entry->addr,
237 addr, sizeof(mac_entry.addr)) != 0)) {
238 ret = hns_dsaf_del_mac_entry(dsaf_dev,
239 old_entry->vlan_id,
240 mac_cb->mac_id,
241 old_entry->addr);
242 if (ret)
243 return ret;
244 }
245
246 ret = hns_dsaf_set_mac_uc_entry(dsaf_dev, &mac_entry);
247 if (ret)
248 return ret;
249 }
250
251 if ((mac_ctrl_drv->set_mac_addr) && (vmid == 0))
252 mac_ctrl_drv->set_mac_addr(mac_cb->priv.mac, addr);
253
254 memcpy(old_entry->addr, addr, sizeof(old_entry->addr));
255 old_entry->valid = 1;
256 return 0;
257 }
258
259 int hns_mac_set_multi(struct hns_mac_cb *mac_cb,
260 u32 port_num, char *addr, bool enable)
261 {
262 int ret;
263 struct dsaf_device *dsaf_dev = mac_cb->dsaf_dev;
264 struct dsaf_drv_mac_single_dest_entry mac_entry;
265
266 if (!HNS_DSAF_IS_DEBUG(dsaf_dev) && addr) {
267 memcpy(mac_entry.addr, addr, sizeof(mac_entry.addr));
268 mac_entry.in_vlan_id = 0;/*vlan_id;*/
269 mac_entry.in_port_num = mac_cb->mac_id;
270 mac_entry.port_num = port_num;
271
272 if (!enable)
273 ret = hns_dsaf_del_mac_mc_port(dsaf_dev, &mac_entry);
274 else
275 ret = hns_dsaf_add_mac_mc_port(dsaf_dev, &mac_entry);
276 if (ret) {
277 dev_err(dsaf_dev->dev,
278 "set mac mc port failed,%s mac%d ret = %#x!\n",
279 mac_cb->dsaf_dev->ae_dev.name,
280 mac_cb->mac_id, ret);
281 return ret;
282 }
283 }
284
285 return 0;
286 }
287
288 /**
289 *hns_mac_del_mac - delete mac address into dsaf table,can't delete the same
290 * address twice
291 *@net_dev: net device
292 *@vfn : vf lan
293 *@mac : mac address
294 *return status
295 */
296 int hns_mac_del_mac(struct hns_mac_cb *mac_cb, u32 vfn, char *mac)
297 {
298 struct mac_entry_idx *old_mac;
299 struct dsaf_device *dsaf_dev;
300 u32 ret;
301
302 dsaf_dev = mac_cb->dsaf_dev;
303
304 if (vfn < DSAF_MAX_VM_NUM) {
305 old_mac = &mac_cb->addr_entry_idx[vfn];
306 } else {
307 dev_err(mac_cb->dev,
308 "vf queue is too large,%s mac%d queue = %#x!\n",
309 mac_cb->dsaf_dev->ae_dev.name, mac_cb->mac_id, vfn);
310 return -EINVAL;
311 }
312
313 if (dsaf_dev) {
314 ret = hns_dsaf_del_mac_entry(dsaf_dev, old_mac->vlan_id,
315 mac_cb->mac_id, old_mac->addr);
316 if (ret)
317 return ret;
318
319 if (memcmp(old_mac->addr, mac, sizeof(old_mac->addr)) == 0)
320 old_mac->valid = 0;
321 }
322
323 return 0;
324 }
325
326 static void hns_mac_param_get(struct mac_params *param,
327 struct hns_mac_cb *mac_cb)
328 {
329 param->vaddr = (void *)mac_cb->vaddr;
330 param->mac_mode = hns_get_enet_interface(mac_cb);
331 memcpy(param->addr, mac_cb->addr_entry_idx[0].addr,
332 MAC_NUM_OCTETS_PER_ADDR);
333 param->mac_id = mac_cb->mac_id;
334 param->dev = mac_cb->dev;
335 }
336
337 /**
338 *hns_mac_queue_config_bc_en - set broadcast rx&tx enable
339 *@mac_cb: mac device
340 *@queue: queue number
341 *@en:enable
342 *retuen 0 - success , negative --fail
343 */
344 static int hns_mac_port_config_bc_en(struct hns_mac_cb *mac_cb,
345 u32 port_num, u16 vlan_id, bool enable)
346 {
347 int ret;
348 struct dsaf_device *dsaf_dev = mac_cb->dsaf_dev;
349 u8 addr[MAC_NUM_OCTETS_PER_ADDR]
350 = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
351 struct dsaf_drv_mac_single_dest_entry mac_entry;
352
353 /* directy return ok in debug network mode */
354 if (mac_cb->mac_type == HNAE_PORT_DEBUG)
355 return 0;
356
357 if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) {
358 memcpy(mac_entry.addr, addr, sizeof(mac_entry.addr));
359 mac_entry.in_vlan_id = vlan_id;
360 mac_entry.in_port_num = mac_cb->mac_id;
361 mac_entry.port_num = port_num;
362
363 if (!enable)
364 ret = hns_dsaf_del_mac_mc_port(dsaf_dev, &mac_entry);
365 else
366 ret = hns_dsaf_add_mac_mc_port(dsaf_dev, &mac_entry);
367 return ret;
368 }
369
370 return 0;
371 }
372
373 /**
374 *hns_mac_vm_config_bc_en - set broadcast rx&tx enable
375 *@mac_cb: mac device
376 *@vmid: vm id
377 *@en:enable
378 *retuen 0 - success , negative --fail
379 */
380 int hns_mac_vm_config_bc_en(struct hns_mac_cb *mac_cb, u32 vmid, bool enable)
381 {
382 int ret;
383 struct dsaf_device *dsaf_dev = mac_cb->dsaf_dev;
384 u8 port_num;
385 u8 addr[MAC_NUM_OCTETS_PER_ADDR]
386 = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
387 struct mac_entry_idx *uc_mac_entry;
388 struct dsaf_drv_mac_single_dest_entry mac_entry;
389
390 if (mac_cb->mac_type == HNAE_PORT_DEBUG)
391 return 0;
392
393 uc_mac_entry = &mac_cb->addr_entry_idx[vmid];
394
395 if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) {
396 memcpy(mac_entry.addr, addr, sizeof(mac_entry.addr));
397 mac_entry.in_vlan_id = uc_mac_entry->vlan_id;
398 mac_entry.in_port_num = mac_cb->mac_id;
399 ret = hns_mac_get_inner_port_num(mac_cb, vmid, &port_num);
400 if (ret)
401 return ret;
402 mac_entry.port_num = port_num;
403
404 if (!enable)
405 ret = hns_dsaf_del_mac_mc_port(dsaf_dev, &mac_entry);
406 else
407 ret = hns_dsaf_add_mac_mc_port(dsaf_dev, &mac_entry);
408 return ret;
409 }
410
411 return 0;
412 }
413
414 void hns_mac_reset(struct hns_mac_cb *mac_cb)
415 {
416 struct mac_driver *drv = hns_mac_get_drv(mac_cb);
417 bool is_ver1 = AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver);
418
419 drv->mac_init(drv);
420
421 if (drv->config_max_frame_length)
422 drv->config_max_frame_length(drv, mac_cb->max_frm);
423
424 if (drv->set_tx_auto_pause_frames)
425 drv->set_tx_auto_pause_frames(drv, mac_cb->tx_pause_frm_time);
426
427 if (drv->set_an_mode)
428 drv->set_an_mode(drv, 1);
429
430 if (drv->mac_pausefrm_cfg) {
431 if (mac_cb->mac_type == HNAE_PORT_DEBUG)
432 drv->mac_pausefrm_cfg(drv, !is_ver1, !is_ver1);
433 else /* mac rx must disable, dsaf pfc close instead of it*/
434 drv->mac_pausefrm_cfg(drv, 0, 1);
435 }
436 }
437
438 int hns_mac_set_mtu(struct hns_mac_cb *mac_cb, u32 new_mtu)
439 {
440 struct mac_driver *drv = hns_mac_get_drv(mac_cb);
441 u32 buf_size = mac_cb->dsaf_dev->buf_size;
442 u32 new_frm = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
443 u32 max_frm = AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver) ?
444 MAC_MAX_MTU : MAC_MAX_MTU_V2;
445
446 if (mac_cb->mac_type == HNAE_PORT_DEBUG)
447 max_frm = MAC_MAX_MTU_DBG;
448
449 if ((new_mtu < MAC_MIN_MTU) || (new_frm > max_frm) ||
450 (new_frm > HNS_RCB_RING_MAX_BD_PER_PKT * buf_size))
451 return -EINVAL;
452
453 if (!drv->config_max_frame_length)
454 return -ECHILD;
455
456 /* adjust max frame to be at least the size of a standard frame */
457 if (new_frm < (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN))
458 new_frm = (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN);
459
460 drv->config_max_frame_length(drv, new_frm);
461
462 mac_cb->max_frm = new_frm;
463
464 return 0;
465 }
466
467 void hns_mac_start(struct hns_mac_cb *mac_cb)
468 {
469 struct mac_driver *mac_drv = hns_mac_get_drv(mac_cb);
470
471 /* for virt */
472 if (mac_drv->mac_en_flg == MAC_EN_FLAG_V) {
473 /*plus 1 when the virtual mac has been enabled */
474 mac_drv->virt_dev_num += 1;
475 return;
476 }
477
478 if (mac_drv->mac_enable) {
479 mac_drv->mac_enable(mac_cb->priv.mac, MAC_COMM_MODE_RX_AND_TX);
480 mac_drv->mac_en_flg = MAC_EN_FLAG_V;
481 }
482 }
483
484 void hns_mac_stop(struct hns_mac_cb *mac_cb)
485 {
486 struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);
487
488 /*modified for virtualization */
489 if (mac_ctrl_drv->virt_dev_num > 0) {
490 mac_ctrl_drv->virt_dev_num -= 1;
491 if (mac_ctrl_drv->virt_dev_num > 0)
492 return;
493 }
494
495 if (mac_ctrl_drv->mac_disable)
496 mac_ctrl_drv->mac_disable(mac_cb->priv.mac,
497 MAC_COMM_MODE_RX_AND_TX);
498
499 mac_ctrl_drv->mac_en_flg = 0;
500 mac_cb->link = 0;
501 mac_cb->dsaf_dev->misc_op->cpld_reset_led(mac_cb);
502 }
503
504 /**
505 * hns_mac_get_autoneg - get auto autonegotiation
506 * @mac_cb: mac control block
507 * @enable: enable or not
508 * retuen 0 - success , negative --fail
509 */
510 void hns_mac_get_autoneg(struct hns_mac_cb *mac_cb, u32 *auto_neg)
511 {
512 struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);
513
514 if (mac_ctrl_drv->autoneg_stat)
515 mac_ctrl_drv->autoneg_stat(mac_ctrl_drv, auto_neg);
516 else
517 *auto_neg = 0;
518 }
519
520 /**
521 * hns_mac_get_pauseparam - set rx & tx pause parameter
522 * @mac_cb: mac control block
523 * @rx_en: rx enable status
524 * @tx_en: tx enable status
525 * retuen 0 - success , negative --fail
526 */
527 void hns_mac_get_pauseparam(struct hns_mac_cb *mac_cb, u32 *rx_en, u32 *tx_en)
528 {
529 struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);
530
531 if (mac_ctrl_drv->get_pause_enable) {
532 mac_ctrl_drv->get_pause_enable(mac_ctrl_drv, rx_en, tx_en);
533 } else {
534 *rx_en = 0;
535 *tx_en = 0;
536 }
537 }
538
539 /**
540 * hns_mac_set_autoneg - set auto autonegotiation
541 * @mac_cb: mac control block
542 * @enable: enable or not
543 * retuen 0 - success , negative --fail
544 */
545 int hns_mac_set_autoneg(struct hns_mac_cb *mac_cb, u8 enable)
546 {
547 struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);
548
549 if (mac_cb->phy_if == PHY_INTERFACE_MODE_XGMII && enable) {
550 dev_err(mac_cb->dev, "enable autoneg is not allowed!");
551 return -ENOTSUPP;
552 }
553
554 if (mac_ctrl_drv->set_an_mode)
555 mac_ctrl_drv->set_an_mode(mac_ctrl_drv, enable);
556
557 return 0;
558 }
559
560 /**
561 * hns_mac_set_autoneg - set rx & tx pause parameter
562 * @mac_cb: mac control block
563 * @rx_en: rx enable or not
564 * @tx_en: tx enable or not
565 * return 0 - success , negative --fail
566 */
567 int hns_mac_set_pauseparam(struct hns_mac_cb *mac_cb, u32 rx_en, u32 tx_en)
568 {
569 struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);
570 bool is_ver1 = AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver);
571
572 if (mac_cb->mac_type == HNAE_PORT_DEBUG) {
573 if (is_ver1 && (tx_en || rx_en)) {
574 dev_err(mac_cb->dev, "macv1 cann't enable tx/rx_pause!");
575 return -EINVAL;
576 }
577 }
578
579 if (mac_ctrl_drv->mac_pausefrm_cfg)
580 mac_ctrl_drv->mac_pausefrm_cfg(mac_ctrl_drv, rx_en, tx_en);
581
582 return 0;
583 }
584
585 /**
586 * hns_mac_init_ex - mac init
587 * @mac_cb: mac control block
588 * retuen 0 - success , negative --fail
589 */
590 static int hns_mac_init_ex(struct hns_mac_cb *mac_cb)
591 {
592 int ret;
593 struct mac_params param;
594 struct mac_driver *drv;
595
596 hns_dsaf_fix_mac_mode(mac_cb);
597
598 memset(&param, 0, sizeof(struct mac_params));
599 hns_mac_param_get(&param, mac_cb);
600
601 if (MAC_SPEED_FROM_MODE(param.mac_mode) < MAC_SPEED_10000)
602 drv = (struct mac_driver *)hns_gmac_config(mac_cb, &param);
603 else
604 drv = (struct mac_driver *)hns_xgmac_config(mac_cb, &param);
605
606 if (!drv)
607 return -ENOMEM;
608
609 mac_cb->priv.mac = (void *)drv;
610 hns_mac_reset(mac_cb);
611
612 hns_mac_adjust_link(mac_cb, mac_cb->speed, !mac_cb->half_duplex);
613
614 ret = hns_mac_port_config_bc_en(mac_cb, mac_cb->mac_id, 0, true);
615 if (ret)
616 goto free_mac_drv;
617
618 return 0;
619
620 free_mac_drv:
621 drv->mac_free(mac_cb->priv.mac);
622 mac_cb->priv.mac = NULL;
623
624 return ret;
625 }
626
627 static int
628 hns_mac_phy_parse_addr(struct device *dev, struct fwnode_handle *fwnode)
629 {
630 u32 addr;
631 int ret;
632
633 ret = fwnode_property_read_u32(fwnode, "phy-addr", &addr);
634 if (ret) {
635 dev_err(dev, "has invalid PHY address ret:%d\n", ret);
636 return ret;
637 }
638
639 if (addr >= PHY_MAX_ADDR) {
640 dev_err(dev, "PHY address %i is too large\n", addr);
641 return -EINVAL;
642 }
643
644 return addr;
645 }
646
647 static int hns_mac_phydev_match(struct device *dev, void *fwnode)
648 {
649 return dev->fwnode == fwnode;
650 }
651
652 static struct
653 platform_device *hns_mac_find_platform_device(struct fwnode_handle *fwnode)
654 {
655 struct device *dev;
656
657 dev = bus_find_device(&platform_bus_type, NULL,
658 fwnode, hns_mac_phydev_match);
659 return dev ? to_platform_device(dev) : NULL;
660 }
661
662 static int
663 hns_mac_register_phydev(struct mii_bus *mdio, struct hns_mac_cb *mac_cb,
664 u32 addr)
665 {
666 struct phy_device *phy;
667 const char *phy_type;
668 bool is_c45;
669 int rc;
670
671 rc = fwnode_property_read_string(mac_cb->fw_port,
672 "phy-mode", &phy_type);
673 if (rc < 0)
674 return rc;
675
676 if (!strcmp(phy_type, phy_modes(PHY_INTERFACE_MODE_XGMII)))
677 is_c45 = 1;
678 else if (!strcmp(phy_type, phy_modes(PHY_INTERFACE_MODE_SGMII)))
679 is_c45 = 0;
680 else
681 return -ENODATA;
682
683 phy = get_phy_device(mdio, addr, is_c45);
684 if (!phy || IS_ERR(phy))
685 return -EIO;
686
687 if (mdio->irq)
688 phy->irq = mdio->irq[addr];
689
690 /* All data is now stored in the phy struct;
691 * register it
692 */
693 rc = phy_device_register(phy);
694 if (rc) {
695 phy_device_free(phy);
696 return -ENODEV;
697 }
698
699 mac_cb->phy_dev = phy;
700
701 dev_dbg(&mdio->dev, "registered phy at address %i\n", addr);
702
703 return 0;
704 }
705
706 static void hns_mac_register_phy(struct hns_mac_cb *mac_cb)
707 {
708 struct acpi_reference_args args;
709 struct platform_device *pdev;
710 struct mii_bus *mii_bus;
711 int rc;
712 int addr;
713
714 /* Loop over the child nodes and register a phy_device for each one */
715 if (!to_acpi_device_node(mac_cb->fw_port))
716 return;
717
718 rc = acpi_node_get_property_reference(
719 mac_cb->fw_port, "mdio-node", 0, &args);
720 if (rc)
721 return;
722
723 addr = hns_mac_phy_parse_addr(mac_cb->dev, mac_cb->fw_port);
724 if (addr < 0)
725 return;
726
727 /* dev address in adev */
728 pdev = hns_mac_find_platform_device(acpi_fwnode_handle(args.adev));
729 mii_bus = platform_get_drvdata(pdev);
730 rc = hns_mac_register_phydev(mii_bus, mac_cb, addr);
731 if (!rc)
732 dev_dbg(mac_cb->dev, "mac%d register phy addr:%d\n",
733 mac_cb->mac_id, addr);
734 }
735
736 #define MAC_MEDIA_TYPE_MAX_LEN 16
737
738 static const struct {
739 enum hnae_media_type value;
740 const char *name;
741 } media_type_defs[] = {
742 {HNAE_MEDIA_TYPE_UNKNOWN, "unknown" },
743 {HNAE_MEDIA_TYPE_FIBER, "fiber" },
744 {HNAE_MEDIA_TYPE_COPPER, "copper" },
745 {HNAE_MEDIA_TYPE_BACKPLANE, "backplane" },
746 };
747
748 /**
749 *hns_mac_get_info - get mac information from device node
750 *@mac_cb: mac device
751 *@np:device node
752 * return: 0 --success, negative --fail
753 */
754 static int hns_mac_get_info(struct hns_mac_cb *mac_cb)
755 {
756 struct device_node *np;
757 struct regmap *syscon;
758 struct of_phandle_args cpld_args;
759 const char *media_type;
760 u32 i;
761 u32 ret;
762
763 mac_cb->link = false;
764 mac_cb->half_duplex = false;
765 mac_cb->media_type = HNAE_MEDIA_TYPE_UNKNOWN;
766 mac_cb->speed = mac_phy_to_speed[mac_cb->phy_if];
767 mac_cb->max_speed = mac_cb->speed;
768
769 if (mac_cb->phy_if == PHY_INTERFACE_MODE_SGMII) {
770 mac_cb->if_support = MAC_GMAC_SUPPORTED;
771 mac_cb->if_support |= SUPPORTED_1000baseT_Full;
772 } else if (mac_cb->phy_if == PHY_INTERFACE_MODE_XGMII) {
773 mac_cb->if_support = SUPPORTED_10000baseR_FEC;
774 mac_cb->if_support |= SUPPORTED_10000baseKR_Full;
775 }
776
777 mac_cb->max_frm = MAC_DEFAULT_MTU;
778 mac_cb->tx_pause_frm_time = MAC_DEFAULT_PAUSE_TIME;
779 mac_cb->port_rst_off = mac_cb->mac_id;
780 mac_cb->port_mode_off = 0;
781
782 /* if the dsaf node doesn't contain a port subnode, get phy-handle
783 * from dsaf node
784 */
785 if (!mac_cb->fw_port) {
786 np = of_parse_phandle(mac_cb->dev->of_node, "phy-handle",
787 mac_cb->mac_id);
788 mac_cb->phy_dev = of_phy_find_device(np);
789 if (mac_cb->phy_dev) {
790 /* refcount is held by of_phy_find_device()
791 * if the phy_dev is found
792 */
793 put_device(&mac_cb->phy_dev->mdio.dev);
794
795 dev_dbg(mac_cb->dev, "mac%d phy_node: %s\n",
796 mac_cb->mac_id, np->name);
797 }
798 of_node_put(np);
799
800 return 0;
801 }
802
803 if (is_of_node(mac_cb->fw_port)) {
804 /* parse property from port subnode in dsaf */
805 np = of_parse_phandle(to_of_node(mac_cb->fw_port),
806 "phy-handle", 0);
807 mac_cb->phy_dev = of_phy_find_device(np);
808 if (mac_cb->phy_dev) {
809 /* refcount is held by of_phy_find_device()
810 * if the phy_dev is found
811 */
812 put_device(&mac_cb->phy_dev->mdio.dev);
813 dev_dbg(mac_cb->dev, "mac%d phy_node: %s\n",
814 mac_cb->mac_id, np->name);
815 }
816 of_node_put(np);
817
818 np = of_parse_phandle(to_of_node(mac_cb->fw_port),
819 "serdes-syscon", 0);
820 syscon = syscon_node_to_regmap(np);
821 of_node_put(np);
822 if (IS_ERR_OR_NULL(syscon)) {
823 dev_err(mac_cb->dev, "serdes-syscon is needed!\n");
824 return -EINVAL;
825 }
826 mac_cb->serdes_ctrl = syscon;
827
828 ret = fwnode_property_read_u32(mac_cb->fw_port,
829 "port-rst-offset",
830 &mac_cb->port_rst_off);
831 if (ret) {
832 dev_dbg(mac_cb->dev,
833 "mac%d port-rst-offset not found, use default value.\n",
834 mac_cb->mac_id);
835 }
836
837 ret = fwnode_property_read_u32(mac_cb->fw_port,
838 "port-mode-offset",
839 &mac_cb->port_mode_off);
840 if (ret) {
841 dev_dbg(mac_cb->dev,
842 "mac%d port-mode-offset not found, use default value.\n",
843 mac_cb->mac_id);
844 }
845
846 ret = of_parse_phandle_with_fixed_args(
847 to_of_node(mac_cb->fw_port), "cpld-syscon", 1, 0,
848 &cpld_args);
849 if (ret) {
850 dev_dbg(mac_cb->dev, "mac%d no cpld-syscon found.\n",
851 mac_cb->mac_id);
852 mac_cb->cpld_ctrl = NULL;
853 } else {
854 syscon = syscon_node_to_regmap(cpld_args.np);
855 if (IS_ERR_OR_NULL(syscon)) {
856 dev_dbg(mac_cb->dev, "no cpld-syscon found!\n");
857 mac_cb->cpld_ctrl = NULL;
858 } else {
859 mac_cb->cpld_ctrl = syscon;
860 mac_cb->cpld_ctrl_reg = cpld_args.args[0];
861 }
862 }
863 } else if (is_acpi_node(mac_cb->fw_port)) {
864 hns_mac_register_phy(mac_cb);
865 } else {
866 dev_err(mac_cb->dev, "mac%d cannot find phy node\n",
867 mac_cb->mac_id);
868 }
869
870 if (!fwnode_property_read_string(mac_cb->fw_port, "media-type",
871 &media_type)) {
872 for (i = 0; i < ARRAY_SIZE(media_type_defs); i++) {
873 if (!strncmp(media_type_defs[i].name, media_type,
874 MAC_MEDIA_TYPE_MAX_LEN)) {
875 mac_cb->media_type = media_type_defs[i].value;
876 break;
877 }
878 }
879 }
880
881 return 0;
882 }
883
884 /**
885 * hns_mac_get_mode - get mac mode
886 * @phy_if: phy interface
887 * retuen 0 - gmac, 1 - xgmac , negative --fail
888 */
889 static int hns_mac_get_mode(phy_interface_t phy_if)
890 {
891 switch (phy_if) {
892 case PHY_INTERFACE_MODE_SGMII:
893 return MAC_GMAC_IDX;
894 case PHY_INTERFACE_MODE_XGMII:
895 return MAC_XGMAC_IDX;
896 default:
897 return -EINVAL;
898 }
899 }
900
901 u8 __iomem *hns_mac_get_vaddr(struct dsaf_device *dsaf_dev,
902 struct hns_mac_cb *mac_cb, u32 mac_mode_idx)
903 {
904 u8 __iomem *base = dsaf_dev->io_base;
905 int mac_id = mac_cb->mac_id;
906
907 if (mac_cb->mac_type == HNAE_PORT_SERVICE)
908 return base + 0x40000 + mac_id * 0x4000 -
909 mac_mode_idx * 0x20000;
910 else
911 return dsaf_dev->ppe_base + 0x1000;
912 }
913
914 /**
915 * hns_mac_get_cfg - get mac cfg from dtb or acpi table
916 * @dsaf_dev: dsa fabric device struct pointer
917 * @mac_cb: mac control block
918 * return 0 - success , negative --fail
919 */
920 int hns_mac_get_cfg(struct dsaf_device *dsaf_dev, struct hns_mac_cb *mac_cb)
921 {
922 int ret;
923 u32 mac_mode_idx;
924
925 mac_cb->dsaf_dev = dsaf_dev;
926 mac_cb->dev = dsaf_dev->dev;
927
928 mac_cb->sys_ctl_vaddr = dsaf_dev->sc_base;
929 mac_cb->serdes_vaddr = dsaf_dev->sds_base;
930
931 mac_cb->sfp_prsnt = 0;
932 mac_cb->txpkt_for_led = 0;
933 mac_cb->rxpkt_for_led = 0;
934
935 if (!HNS_DSAF_IS_DEBUG(dsaf_dev))
936 mac_cb->mac_type = HNAE_PORT_SERVICE;
937 else
938 mac_cb->mac_type = HNAE_PORT_DEBUG;
939
940 mac_cb->phy_if = dsaf_dev->misc_op->get_phy_if(mac_cb);
941
942 ret = hns_mac_get_mode(mac_cb->phy_if);
943 if (ret < 0) {
944 dev_err(dsaf_dev->dev,
945 "hns_mac_get_mode failed,mac%d ret = %#x!\n",
946 mac_cb->mac_id, ret);
947 return ret;
948 }
949 mac_mode_idx = (u32)ret;
950
951 ret = hns_mac_get_info(mac_cb);
952 if (ret)
953 return ret;
954
955 mac_cb->dsaf_dev->misc_op->cpld_reset_led(mac_cb);
956 mac_cb->vaddr = hns_mac_get_vaddr(dsaf_dev, mac_cb, mac_mode_idx);
957
958 return 0;
959 }
960
961 static int hns_mac_get_max_port_num(struct dsaf_device *dsaf_dev)
962 {
963 if (HNS_DSAF_IS_DEBUG(dsaf_dev))
964 return 1;
965 else
966 return DSAF_MAX_PORT_NUM;
967 }
968
969 /**
970 * hns_mac_init - init mac
971 * @dsaf_dev: dsa fabric device struct pointer
972 * return 0 - success , negative --fail
973 */
974 int hns_mac_init(struct dsaf_device *dsaf_dev)
975 {
976 bool found = false;
977 int ret;
978 u32 port_id;
979 int max_port_num = hns_mac_get_max_port_num(dsaf_dev);
980 struct hns_mac_cb *mac_cb;
981 struct fwnode_handle *child;
982
983 device_for_each_child_node(dsaf_dev->dev, child) {
984 ret = fwnode_property_read_u32(child, "reg", &port_id);
985 if (ret) {
986 dev_err(dsaf_dev->dev,
987 "get reg fail, ret=%d!\n", ret);
988 return ret;
989 }
990 if (port_id >= max_port_num) {
991 dev_err(dsaf_dev->dev,
992 "reg(%u) out of range!\n", port_id);
993 return -EINVAL;
994 }
995 mac_cb = devm_kzalloc(dsaf_dev->dev, sizeof(*mac_cb),
996 GFP_KERNEL);
997 if (!mac_cb)
998 return -ENOMEM;
999 mac_cb->fw_port = child;
1000 mac_cb->mac_id = (u8)port_id;
1001 dsaf_dev->mac_cb[port_id] = mac_cb;
1002 found = true;
1003 }
1004
1005 /* if don't get any port subnode from dsaf node
1006 * will init all port then, this is compatible with the old dts
1007 */
1008 if (!found) {
1009 for (port_id = 0; port_id < max_port_num; port_id++) {
1010 mac_cb = devm_kzalloc(dsaf_dev->dev, sizeof(*mac_cb),
1011 GFP_KERNEL);
1012 if (!mac_cb)
1013 return -ENOMEM;
1014
1015 mac_cb->mac_id = port_id;
1016 dsaf_dev->mac_cb[port_id] = mac_cb;
1017 }
1018 }
1019 /* init mac_cb for all port */
1020 for (port_id = 0; port_id < max_port_num; port_id++) {
1021 mac_cb = dsaf_dev->mac_cb[port_id];
1022 if (!mac_cb)
1023 continue;
1024
1025 ret = hns_mac_get_cfg(dsaf_dev, mac_cb);
1026 if (ret)
1027 return ret;
1028 ret = hns_mac_init_ex(mac_cb);
1029 if (ret)
1030 return ret;
1031 }
1032
1033 return 0;
1034 }
1035
1036 void hns_mac_uninit(struct dsaf_device *dsaf_dev)
1037 {
1038 int i;
1039 int max_port_num = hns_mac_get_max_port_num(dsaf_dev);
1040
1041 for (i = 0; i < max_port_num; i++) {
1042 dsaf_dev->misc_op->cpld_reset_led(dsaf_dev->mac_cb[i]);
1043 dsaf_dev->mac_cb[i] = NULL;
1044 }
1045 }
1046
1047 int hns_mac_config_mac_loopback(struct hns_mac_cb *mac_cb,
1048 enum hnae_loop loop, int en)
1049 {
1050 int ret;
1051 struct mac_driver *drv = hns_mac_get_drv(mac_cb);
1052
1053 if (drv->config_loopback)
1054 ret = drv->config_loopback(drv, loop, en);
1055 else
1056 ret = -ENOTSUPP;
1057
1058 return ret;
1059 }
1060
1061 void hns_mac_update_stats(struct hns_mac_cb *mac_cb)
1062 {
1063 struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);
1064
1065 mac_ctrl_drv->update_stats(mac_ctrl_drv);
1066 }
1067
1068 void hns_mac_get_stats(struct hns_mac_cb *mac_cb, u64 *data)
1069 {
1070 struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);
1071
1072 mac_ctrl_drv->get_ethtool_stats(mac_ctrl_drv, data);
1073 }
1074
1075 void hns_mac_get_strings(struct hns_mac_cb *mac_cb,
1076 int stringset, u8 *data)
1077 {
1078 struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);
1079
1080 mac_ctrl_drv->get_strings(stringset, data);
1081 }
1082
1083 int hns_mac_get_sset_count(struct hns_mac_cb *mac_cb, int stringset)
1084 {
1085 struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);
1086
1087 return mac_ctrl_drv->get_sset_count(stringset);
1088 }
1089
1090 void hns_mac_set_promisc(struct hns_mac_cb *mac_cb, u8 en)
1091 {
1092 struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);
1093
1094 if (mac_ctrl_drv->set_promiscuous)
1095 mac_ctrl_drv->set_promiscuous(mac_ctrl_drv, en);
1096 }
1097
1098 int hns_mac_get_regs_count(struct hns_mac_cb *mac_cb)
1099 {
1100 struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);
1101
1102 return mac_ctrl_drv->get_regs_count();
1103 }
1104
1105 void hns_mac_get_regs(struct hns_mac_cb *mac_cb, void *data)
1106 {
1107 struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);
1108
1109 mac_ctrl_drv->get_regs(mac_ctrl_drv, data);
1110 }
1111
1112 void hns_set_led_opt(struct hns_mac_cb *mac_cb)
1113 {
1114 int nic_data = 0;
1115 int txpkts, rxpkts;
1116
1117 txpkts = mac_cb->txpkt_for_led - mac_cb->hw_stats.tx_good_pkts;
1118 rxpkts = mac_cb->rxpkt_for_led - mac_cb->hw_stats.rx_good_pkts;
1119 if (txpkts || rxpkts)
1120 nic_data = 1;
1121 else
1122 nic_data = 0;
1123 mac_cb->txpkt_for_led = mac_cb->hw_stats.tx_good_pkts;
1124 mac_cb->rxpkt_for_led = mac_cb->hw_stats.rx_good_pkts;
1125 mac_cb->dsaf_dev->misc_op->cpld_set_led(mac_cb, (int)mac_cb->link,
1126 mac_cb->speed, nic_data);
1127 }
1128
1129 int hns_cpld_led_set_id(struct hns_mac_cb *mac_cb,
1130 enum hnae_led_state status)
1131 {
1132 if (!mac_cb || !mac_cb->cpld_ctrl)
1133 return 0;
1134
1135 return mac_cb->dsaf_dev->misc_op->cpld_set_led_id(mac_cb, status);
1136 }
CRIS linux kernel tree