1 // SPDX-License-Identifier: GPL-2.0
2 /* Marvell RVU Admin Function driver
3 *
4 * Copyright (C) 2018 Marvell.
5 *
6 */
7
8 #include <linux/types.h>
9 #include <linux/module.h>
10 #include <linux/pci.h>
11
12 #include "rvu.h"
13 #include "cgx.h"
14 #include "lmac_common.h"
15 #include "rvu_reg.h"
16 #include "rvu_trace.h"
17 #include "rvu_npc_hash.h"
18
19 struct cgx_evq_entry {
20 struct list_head evq_node;
21 struct cgx_link_event link_event;
22 };
23
24 #define M(_name, _id, _fn_name, _req_type, _rsp_type) \
25 static struct _req_type __maybe_unused \
26 *otx2_mbox_alloc_msg_ ## _fn_name(struct rvu *rvu, int devid) \
27 { \
28 struct _req_type *req; \
29 \
30 req = (struct _req_type *)otx2_mbox_alloc_msg_rsp( \
31 &rvu->afpf_wq_info.mbox_up, devid, sizeof(struct _req_type), \
32 sizeof(struct _rsp_type)); \
33 if (!req) \
34 return NULL; \
35 req->hdr.sig = OTX2_MBOX_REQ_SIG; \
36 req->hdr.id = _id; \
37 trace_otx2_msg_alloc(rvu->pdev, _id, sizeof(*req)); \
38 return req; \
39 }
40
41 MBOX_UP_CGX_MESSAGES
42 #undef M
43
is_mac_feature_supported(struct rvu * rvu,int pf,int feature)44 bool is_mac_feature_supported(struct rvu *rvu, int pf, int feature)
45 {
46 u8 cgx_id, lmac_id;
47 void *cgxd;
48
49 if (!is_pf_cgxmapped(rvu, pf))
50 return 0;
51
52 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
53 cgxd = rvu_cgx_pdata(cgx_id, rvu);
54
55 return (cgx_features_get(cgxd) & feature);
56 }
57
58 #define CGX_OFFSET(x) ((x) * rvu->hw->lmac_per_cgx)
59 /* Returns bitmap of mapped PFs */
cgxlmac_to_pfmap(struct rvu * rvu,u8 cgx_id,u8 lmac_id)60 static u64 cgxlmac_to_pfmap(struct rvu *rvu, u8 cgx_id, u8 lmac_id)
61 {
62 return rvu->cgxlmac2pf_map[CGX_OFFSET(cgx_id) + lmac_id];
63 }
64
cgxlmac_to_pf(struct rvu * rvu,int cgx_id,int lmac_id)65 int cgxlmac_to_pf(struct rvu *rvu, int cgx_id, int lmac_id)
66 {
67 unsigned long pfmap;
68
69 pfmap = cgxlmac_to_pfmap(rvu, cgx_id, lmac_id);
70
71 /* Assumes only one pf mapped to a cgx lmac port */
72 if (!pfmap)
73 return -ENODEV;
74 else
75 return find_first_bit(&pfmap,
76 rvu->cgx_cnt_max * rvu->hw->lmac_per_cgx);
77 }
78
cgxlmac_id_to_bmap(u8 cgx_id,u8 lmac_id)79 static u8 cgxlmac_id_to_bmap(u8 cgx_id, u8 lmac_id)
80 {
81 return ((cgx_id & 0xF) << 4) | (lmac_id & 0xF);
82 }
83
rvu_cgx_pdata(u8 cgx_id,struct rvu * rvu)84 void *rvu_cgx_pdata(u8 cgx_id, struct rvu *rvu)
85 {
86 if (cgx_id >= rvu->cgx_cnt_max)
87 return NULL;
88
89 return rvu->cgx_idmap[cgx_id];
90 }
91
92 /* Return first enabled CGX instance if none are enabled then return NULL */
rvu_first_cgx_pdata(struct rvu * rvu)93 void *rvu_first_cgx_pdata(struct rvu *rvu)
94 {
95 int first_enabled_cgx = 0;
96 void *cgxd = NULL;
97
98 for (; first_enabled_cgx < rvu->cgx_cnt_max; first_enabled_cgx++) {
99 cgxd = rvu_cgx_pdata(first_enabled_cgx, rvu);
100 if (cgxd)
101 break;
102 }
103
104 return cgxd;
105 }
106
107 /* Based on P2X connectivity find mapped NIX block for a PF */
rvu_map_cgx_nix_block(struct rvu * rvu,int pf,int cgx_id,int lmac_id)108 static void rvu_map_cgx_nix_block(struct rvu *rvu, int pf,
109 int cgx_id, int lmac_id)
110 {
111 struct rvu_pfvf *pfvf = &rvu->pf[pf];
112 u8 p2x;
113
114 p2x = cgx_lmac_get_p2x(cgx_id, lmac_id);
115 /* Firmware sets P2X_SELECT as either NIX0 or NIX1 */
116 pfvf->nix_blkaddr = BLKADDR_NIX0;
117 if (is_rvu_supports_nix1(rvu) && p2x == CMR_P2X_SEL_NIX1)
118 pfvf->nix_blkaddr = BLKADDR_NIX1;
119 }
120
rvu_map_cgx_lmac_pf(struct rvu * rvu)121 static int rvu_map_cgx_lmac_pf(struct rvu *rvu)
122 {
123 struct npc_pkind *pkind = &rvu->hw->pkind;
124 int cgx_cnt_max = rvu->cgx_cnt_max;
125 int pf = PF_CGXMAP_BASE;
126 unsigned long lmac_bmap;
127 int size, free_pkind;
128 int cgx, lmac, iter;
129 int numvfs, hwvfs;
130
131 if (!cgx_cnt_max)
132 return 0;
133
134 if (cgx_cnt_max > 0xF || rvu->hw->lmac_per_cgx > 0xF)
135 return -EINVAL;
136
137 /* Alloc map table
138 * An additional entry is required since PF id starts from 1 and
139 * hence entry at offset 0 is invalid.
140 */
141 size = (cgx_cnt_max * rvu->hw->lmac_per_cgx + 1) * sizeof(u8);
142 rvu->pf2cgxlmac_map = devm_kmalloc(rvu->dev, size, GFP_KERNEL);
143 if (!rvu->pf2cgxlmac_map)
144 return -ENOMEM;
145
146 /* Initialize all entries with an invalid cgx and lmac id */
147 memset(rvu->pf2cgxlmac_map, 0xFF, size);
148
149 /* Reverse map table */
150 rvu->cgxlmac2pf_map =
151 devm_kzalloc(rvu->dev,
152 cgx_cnt_max * rvu->hw->lmac_per_cgx * sizeof(u64),
153 GFP_KERNEL);
154 if (!rvu->cgxlmac2pf_map)
155 return -ENOMEM;
156
157 rvu->cgx_mapped_pfs = 0;
158 for (cgx = 0; cgx < cgx_cnt_max; cgx++) {
159 if (!rvu_cgx_pdata(cgx, rvu))
160 continue;
161 lmac_bmap = cgx_get_lmac_bmap(rvu_cgx_pdata(cgx, rvu));
162 for_each_set_bit(iter, &lmac_bmap, rvu->hw->lmac_per_cgx) {
163 if (iter >= MAX_LMAC_COUNT)
164 continue;
165 lmac = cgx_get_lmacid(rvu_cgx_pdata(cgx, rvu),
166 iter);
167 rvu->pf2cgxlmac_map[pf] = cgxlmac_id_to_bmap(cgx, lmac);
168 rvu->cgxlmac2pf_map[CGX_OFFSET(cgx) + lmac] = 1 << pf;
169 free_pkind = rvu_alloc_rsrc(&pkind->rsrc);
170 pkind->pfchan_map[free_pkind] = ((pf) & 0x3F) << 16;
171 rvu_map_cgx_nix_block(rvu, pf, cgx, lmac);
172 rvu->cgx_mapped_pfs++;
173 rvu_get_pf_numvfs(rvu, pf, &numvfs, &hwvfs);
174 rvu->cgx_mapped_vfs += numvfs;
175 pf++;
176 }
177 }
178 return 0;
179 }
180
rvu_cgx_send_link_info(int cgx_id,int lmac_id,struct rvu * rvu)181 static int rvu_cgx_send_link_info(int cgx_id, int lmac_id, struct rvu *rvu)
182 {
183 struct cgx_evq_entry *qentry;
184 unsigned long flags;
185 int err;
186
187 qentry = kmalloc(sizeof(*qentry), GFP_KERNEL);
188 if (!qentry)
189 return -ENOMEM;
190
191 /* Lock the event queue before we read the local link status */
192 spin_lock_irqsave(&rvu->cgx_evq_lock, flags);
193 err = cgx_get_link_info(rvu_cgx_pdata(cgx_id, rvu), lmac_id,
194 &qentry->link_event.link_uinfo);
195 qentry->link_event.cgx_id = cgx_id;
196 qentry->link_event.lmac_id = lmac_id;
197 if (err) {
198 kfree(qentry);
199 goto skip_add;
200 }
201 list_add_tail(&qentry->evq_node, &rvu->cgx_evq_head);
202 skip_add:
203 spin_unlock_irqrestore(&rvu->cgx_evq_lock, flags);
204
205 /* start worker to process the events */
206 queue_work(rvu->cgx_evh_wq, &rvu->cgx_evh_work);
207
208 return 0;
209 }
210
211 /* This is called from interrupt context and is expected to be atomic */
cgx_lmac_postevent(struct cgx_link_event * event,void * data)212 static int cgx_lmac_postevent(struct cgx_link_event *event, void *data)
213 {
214 struct cgx_evq_entry *qentry;
215 struct rvu *rvu = data;
216
217 /* post event to the event queue */
218 qentry = kmalloc(sizeof(*qentry), GFP_ATOMIC);
219 if (!qentry)
220 return -ENOMEM;
221 qentry->link_event = *event;
222 spin_lock(&rvu->cgx_evq_lock);
223 list_add_tail(&qentry->evq_node, &rvu->cgx_evq_head);
224 spin_unlock(&rvu->cgx_evq_lock);
225
226 /* start worker to process the events */
227 queue_work(rvu->cgx_evh_wq, &rvu->cgx_evh_work);
228
229 return 0;
230 }
231
cgx_notify_pfs(struct cgx_link_event * event,struct rvu * rvu)232 static void cgx_notify_pfs(struct cgx_link_event *event, struct rvu *rvu)
233 {
234 struct cgx_link_user_info *linfo;
235 struct cgx_link_info_msg *msg;
236 unsigned long pfmap;
237 int pfid;
238
239 linfo = &event->link_uinfo;
240 pfmap = cgxlmac_to_pfmap(rvu, event->cgx_id, event->lmac_id);
241 if (!pfmap) {
242 dev_err(rvu->dev, "CGX port%d:%d not mapped with PF\n",
243 event->cgx_id, event->lmac_id);
244 return;
245 }
246
247 do {
248 pfid = find_first_bit(&pfmap,
249 rvu->cgx_cnt_max * rvu->hw->lmac_per_cgx);
250 clear_bit(pfid, &pfmap);
251
252 /* check if notification is enabled */
253 if (!test_bit(pfid, &rvu->pf_notify_bmap)) {
254 dev_info(rvu->dev, "cgx %d: lmac %d Link status %s\n",
255 event->cgx_id, event->lmac_id,
256 linfo->link_up ? "UP" : "DOWN");
257 continue;
258 }
259
260 mutex_lock(&rvu->mbox_lock);
261
262 /* Send mbox message to PF */
263 msg = otx2_mbox_alloc_msg_cgx_link_event(rvu, pfid);
264 if (!msg) {
265 mutex_unlock(&rvu->mbox_lock);
266 continue;
267 }
268
269 msg->link_info = *linfo;
270
271 otx2_mbox_wait_for_zero(&rvu->afpf_wq_info.mbox_up, pfid);
272
273 otx2_mbox_msg_send_up(&rvu->afpf_wq_info.mbox_up, pfid);
274
275 mutex_unlock(&rvu->mbox_lock);
276 } while (pfmap);
277 }
278
cgx_evhandler_task(struct work_struct * work)279 static void cgx_evhandler_task(struct work_struct *work)
280 {
281 struct rvu *rvu = container_of(work, struct rvu, cgx_evh_work);
282 struct cgx_evq_entry *qentry;
283 struct cgx_link_event *event;
284 unsigned long flags;
285
286 do {
287 /* Dequeue an event */
288 spin_lock_irqsave(&rvu->cgx_evq_lock, flags);
289 qentry = list_first_entry_or_null(&rvu->cgx_evq_head,
290 struct cgx_evq_entry,
291 evq_node);
292 if (qentry)
293 list_del(&qentry->evq_node);
294 spin_unlock_irqrestore(&rvu->cgx_evq_lock, flags);
295 if (!qentry)
296 break; /* nothing more to process */
297
298 event = &qentry->link_event;
299
300 /* process event */
301 cgx_notify_pfs(event, rvu);
302 kfree(qentry);
303 } while (1);
304 }
305
cgx_lmac_event_handler_init(struct rvu * rvu)306 static int cgx_lmac_event_handler_init(struct rvu *rvu)
307 {
308 unsigned long lmac_bmap;
309 struct cgx_event_cb cb;
310 int cgx, lmac, err;
311 void *cgxd;
312
313 spin_lock_init(&rvu->cgx_evq_lock);
314 INIT_LIST_HEAD(&rvu->cgx_evq_head);
315 INIT_WORK(&rvu->cgx_evh_work, cgx_evhandler_task);
316 rvu->cgx_evh_wq = alloc_workqueue("rvu_evh_wq", 0, 0);
317 if (!rvu->cgx_evh_wq) {
318 dev_err(rvu->dev, "alloc workqueue failed");
319 return -ENOMEM;
320 }
321
322 cb.notify_link_chg = cgx_lmac_postevent; /* link change call back */
323 cb.data = rvu;
324
325 for (cgx = 0; cgx <= rvu->cgx_cnt_max; cgx++) {
326 cgxd = rvu_cgx_pdata(cgx, rvu);
327 if (!cgxd)
328 continue;
329 lmac_bmap = cgx_get_lmac_bmap(cgxd);
330 for_each_set_bit(lmac, &lmac_bmap, rvu->hw->lmac_per_cgx) {
331 err = cgx_lmac_evh_register(&cb, cgxd, lmac);
332 if (err)
333 dev_err(rvu->dev,
334 "%d:%d handler register failed\n",
335 cgx, lmac);
336 }
337 }
338
339 return 0;
340 }
341
rvu_cgx_wq_destroy(struct rvu * rvu)342 static void rvu_cgx_wq_destroy(struct rvu *rvu)
343 {
344 if (rvu->cgx_evh_wq) {
345 destroy_workqueue(rvu->cgx_evh_wq);
346 rvu->cgx_evh_wq = NULL;
347 }
348 }
349
rvu_cgx_init(struct rvu * rvu)350 int rvu_cgx_init(struct rvu *rvu)
351 {
352 int cgx, err;
353 void *cgxd;
354
355 /* CGX port id starts from 0 and are not necessarily contiguous
356 * Hence we allocate resources based on the maximum port id value.
357 */
358 rvu->cgx_cnt_max = cgx_get_cgxcnt_max();
359 if (!rvu->cgx_cnt_max) {
360 dev_info(rvu->dev, "No CGX devices found!\n");
361 return 0;
362 }
363
364 rvu->cgx_idmap = devm_kzalloc(rvu->dev, rvu->cgx_cnt_max *
365 sizeof(void *), GFP_KERNEL);
366 if (!rvu->cgx_idmap)
367 return -ENOMEM;
368
369 /* Initialize the cgxdata table */
370 for (cgx = 0; cgx < rvu->cgx_cnt_max; cgx++)
371 rvu->cgx_idmap[cgx] = cgx_get_pdata(cgx);
372
373 /* Map CGX LMAC interfaces to RVU PFs */
374 err = rvu_map_cgx_lmac_pf(rvu);
375 if (err)
376 return err;
377
378 /* Register for CGX events */
379 err = cgx_lmac_event_handler_init(rvu);
380 if (err)
381 return err;
382
383 mutex_init(&rvu->cgx_cfg_lock);
384
385 /* Ensure event handler registration is completed, before
386 * we turn on the links
387 */
388 mb();
389
390 /* Do link up for all CGX ports */
391 for (cgx = 0; cgx <= rvu->cgx_cnt_max; cgx++) {
392 cgxd = rvu_cgx_pdata(cgx, rvu);
393 if (!cgxd)
394 continue;
395 err = cgx_lmac_linkup_start(cgxd);
396 if (err)
397 dev_err(rvu->dev,
398 "Link up process failed to start on cgx %d\n",
399 cgx);
400 }
401
402 return 0;
403 }
404
rvu_cgx_exit(struct rvu * rvu)405 int rvu_cgx_exit(struct rvu *rvu)
406 {
407 unsigned long lmac_bmap;
408 int cgx, lmac;
409 void *cgxd;
410
411 for (cgx = 0; cgx <= rvu->cgx_cnt_max; cgx++) {
412 cgxd = rvu_cgx_pdata(cgx, rvu);
413 if (!cgxd)
414 continue;
415 lmac_bmap = cgx_get_lmac_bmap(cgxd);
416 for_each_set_bit(lmac, &lmac_bmap, rvu->hw->lmac_per_cgx)
417 cgx_lmac_evh_unregister(cgxd, lmac);
418 }
419
420 /* Ensure event handler unregister is completed */
421 mb();
422
423 rvu_cgx_wq_destroy(rvu);
424 return 0;
425 }
426
427 /* Most of the CGX configuration is restricted to the mapped PF only,
428 * VF's of mapped PF and other PFs are not allowed. This fn() checks
429 * whether a PFFUNC is permitted to do the config or not.
430 */
is_cgx_config_permitted(struct rvu * rvu,u16 pcifunc)431 inline bool is_cgx_config_permitted(struct rvu *rvu, u16 pcifunc)
432 {
433 if ((pcifunc & RVU_PFVF_FUNC_MASK) ||
434 !is_pf_cgxmapped(rvu, rvu_get_pf(pcifunc)))
435 return false;
436 return true;
437 }
438
rvu_cgx_enadis_rx_bp(struct rvu * rvu,int pf,bool enable)439 void rvu_cgx_enadis_rx_bp(struct rvu *rvu, int pf, bool enable)
440 {
441 struct mac_ops *mac_ops;
442 u8 cgx_id, lmac_id;
443 void *cgxd;
444
445 if (!is_pf_cgxmapped(rvu, pf))
446 return;
447
448 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
449 cgxd = rvu_cgx_pdata(cgx_id, rvu);
450
451 mac_ops = get_mac_ops(cgxd);
452 /* Set / clear CTL_BCK to control pause frame forwarding to NIX */
453 if (enable)
454 mac_ops->mac_enadis_rx_pause_fwding(cgxd, lmac_id, true);
455 else
456 mac_ops->mac_enadis_rx_pause_fwding(cgxd, lmac_id, false);
457 }
458
rvu_cgx_config_rxtx(struct rvu * rvu,u16 pcifunc,bool start)459 int rvu_cgx_config_rxtx(struct rvu *rvu, u16 pcifunc, bool start)
460 {
461 int pf = rvu_get_pf(pcifunc);
462 struct mac_ops *mac_ops;
463 u8 cgx_id, lmac_id;
464 void *cgxd;
465
466 if (!is_cgx_config_permitted(rvu, pcifunc))
467 return LMAC_AF_ERR_PERM_DENIED;
468
469 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
470 cgxd = rvu_cgx_pdata(cgx_id, rvu);
471 mac_ops = get_mac_ops(cgxd);
472
473 return mac_ops->mac_rx_tx_enable(cgxd, lmac_id, start);
474 }
475
rvu_cgx_tx_enable(struct rvu * rvu,u16 pcifunc,bool enable)476 int rvu_cgx_tx_enable(struct rvu *rvu, u16 pcifunc, bool enable)
477 {
478 int pf = rvu_get_pf(pcifunc);
479 struct mac_ops *mac_ops;
480 u8 cgx_id, lmac_id;
481 void *cgxd;
482
483 if (!is_cgx_config_permitted(rvu, pcifunc))
484 return LMAC_AF_ERR_PERM_DENIED;
485
486 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
487 cgxd = rvu_cgx_pdata(cgx_id, rvu);
488 mac_ops = get_mac_ops(cgxd);
489
490 return mac_ops->mac_tx_enable(cgxd, lmac_id, enable);
491 }
492
rvu_cgx_config_tx(void * cgxd,int lmac_id,bool enable)493 int rvu_cgx_config_tx(void *cgxd, int lmac_id, bool enable)
494 {
495 struct mac_ops *mac_ops;
496
497 mac_ops = get_mac_ops(cgxd);
498 return mac_ops->mac_tx_enable(cgxd, lmac_id, enable);
499 }
500
rvu_cgx_disable_dmac_entries(struct rvu * rvu,u16 pcifunc)501 void rvu_cgx_disable_dmac_entries(struct rvu *rvu, u16 pcifunc)
502 {
503 int pf = rvu_get_pf(pcifunc);
504 int i = 0, lmac_count = 0;
505 struct mac_ops *mac_ops;
506 u8 max_dmac_filters;
507 u8 cgx_id, lmac_id;
508 void *cgx_dev;
509
510 if (!is_cgx_config_permitted(rvu, pcifunc))
511 return;
512
513 if (rvu_npc_exact_has_match_table(rvu)) {
514 rvu_npc_exact_reset(rvu, pcifunc);
515 return;
516 }
517
518 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
519 cgx_dev = cgx_get_pdata(cgx_id);
520 lmac_count = cgx_get_lmac_cnt(cgx_dev);
521
522 mac_ops = get_mac_ops(cgx_dev);
523 if (!mac_ops)
524 return;
525
526 max_dmac_filters = mac_ops->dmac_filter_count / lmac_count;
527
528 for (i = 0; i < max_dmac_filters; i++)
529 cgx_lmac_addr_del(cgx_id, lmac_id, i);
530
531 /* As cgx_lmac_addr_del does not clear entry for index 0
532 * so it needs to be done explicitly
533 */
534 cgx_lmac_addr_reset(cgx_id, lmac_id);
535 }
536
rvu_mbox_handler_cgx_start_rxtx(struct rvu * rvu,struct msg_req * req,struct msg_rsp * rsp)537 int rvu_mbox_handler_cgx_start_rxtx(struct rvu *rvu, struct msg_req *req,
538 struct msg_rsp *rsp)
539 {
540 rvu_cgx_config_rxtx(rvu, req->hdr.pcifunc, true);
541 return 0;
542 }
543
rvu_mbox_handler_cgx_stop_rxtx(struct rvu * rvu,struct msg_req * req,struct msg_rsp * rsp)544 int rvu_mbox_handler_cgx_stop_rxtx(struct rvu *rvu, struct msg_req *req,
545 struct msg_rsp *rsp)
546 {
547 rvu_cgx_config_rxtx(rvu, req->hdr.pcifunc, false);
548 return 0;
549 }
550
rvu_lmac_get_stats(struct rvu * rvu,struct msg_req * req,void * rsp)551 static int rvu_lmac_get_stats(struct rvu *rvu, struct msg_req *req,
552 void *rsp)
553 {
554 int pf = rvu_get_pf(req->hdr.pcifunc);
555 struct mac_ops *mac_ops;
556 int stat = 0, err = 0;
557 u64 tx_stat, rx_stat;
558 u8 cgx_idx, lmac;
559 void *cgxd;
560
561 if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
562 return LMAC_AF_ERR_PERM_DENIED;
563
564 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_idx, &lmac);
565 cgxd = rvu_cgx_pdata(cgx_idx, rvu);
566 mac_ops = get_mac_ops(cgxd);
567
568 /* Rx stats */
569 while (stat < mac_ops->rx_stats_cnt) {
570 err = mac_ops->mac_get_rx_stats(cgxd, lmac, stat, &rx_stat);
571 if (err)
572 return err;
573 if (mac_ops->rx_stats_cnt == RPM_RX_STATS_COUNT)
574 ((struct rpm_stats_rsp *)rsp)->rx_stats[stat] = rx_stat;
575 else
576 ((struct cgx_stats_rsp *)rsp)->rx_stats[stat] = rx_stat;
577 stat++;
578 }
579
580 /* Tx stats */
581 stat = 0;
582 while (stat < mac_ops->tx_stats_cnt) {
583 err = mac_ops->mac_get_tx_stats(cgxd, lmac, stat, &tx_stat);
584 if (err)
585 return err;
586 if (mac_ops->tx_stats_cnt == RPM_TX_STATS_COUNT)
587 ((struct rpm_stats_rsp *)rsp)->tx_stats[stat] = tx_stat;
588 else
589 ((struct cgx_stats_rsp *)rsp)->tx_stats[stat] = tx_stat;
590 stat++;
591 }
592 return 0;
593 }
594
rvu_mbox_handler_cgx_stats(struct rvu * rvu,struct msg_req * req,struct cgx_stats_rsp * rsp)595 int rvu_mbox_handler_cgx_stats(struct rvu *rvu, struct msg_req *req,
596 struct cgx_stats_rsp *rsp)
597 {
598 return rvu_lmac_get_stats(rvu, req, (void *)rsp);
599 }
600
rvu_mbox_handler_rpm_stats(struct rvu * rvu,struct msg_req * req,struct rpm_stats_rsp * rsp)601 int rvu_mbox_handler_rpm_stats(struct rvu *rvu, struct msg_req *req,
602 struct rpm_stats_rsp *rsp)
603 {
604 return rvu_lmac_get_stats(rvu, req, (void *)rsp);
605 }
606
rvu_mbox_handler_cgx_fec_stats(struct rvu * rvu,struct msg_req * req,struct cgx_fec_stats_rsp * rsp)607 int rvu_mbox_handler_cgx_fec_stats(struct rvu *rvu,
608 struct msg_req *req,
609 struct cgx_fec_stats_rsp *rsp)
610 {
611 int pf = rvu_get_pf(req->hdr.pcifunc);
612 struct mac_ops *mac_ops;
613 u8 cgx_idx, lmac;
614 void *cgxd;
615
616 if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
617 return LMAC_AF_ERR_PERM_DENIED;
618 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_idx, &lmac);
619
620 cgxd = rvu_cgx_pdata(cgx_idx, rvu);
621 mac_ops = get_mac_ops(cgxd);
622 return mac_ops->get_fec_stats(cgxd, lmac, rsp);
623 }
624
rvu_mbox_handler_cgx_mac_addr_set(struct rvu * rvu,struct cgx_mac_addr_set_or_get * req,struct cgx_mac_addr_set_or_get * rsp)625 int rvu_mbox_handler_cgx_mac_addr_set(struct rvu *rvu,
626 struct cgx_mac_addr_set_or_get *req,
627 struct cgx_mac_addr_set_or_get *rsp)
628 {
629 int pf = rvu_get_pf(req->hdr.pcifunc);
630 u8 cgx_id, lmac_id;
631
632 if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
633 return -EPERM;
634
635 if (rvu_npc_exact_has_match_table(rvu))
636 return rvu_npc_exact_mac_addr_set(rvu, req, rsp);
637
638 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
639
640 cgx_lmac_addr_set(cgx_id, lmac_id, req->mac_addr);
641
642 return 0;
643 }
644
rvu_mbox_handler_cgx_mac_addr_add(struct rvu * rvu,struct cgx_mac_addr_add_req * req,struct cgx_mac_addr_add_rsp * rsp)645 int rvu_mbox_handler_cgx_mac_addr_add(struct rvu *rvu,
646 struct cgx_mac_addr_add_req *req,
647 struct cgx_mac_addr_add_rsp *rsp)
648 {
649 int pf = rvu_get_pf(req->hdr.pcifunc);
650 u8 cgx_id, lmac_id;
651 int rc = 0;
652
653 if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
654 return -EPERM;
655
656 if (rvu_npc_exact_has_match_table(rvu))
657 return rvu_npc_exact_mac_addr_add(rvu, req, rsp);
658
659 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
660 rc = cgx_lmac_addr_add(cgx_id, lmac_id, req->mac_addr);
661 if (rc >= 0) {
662 rsp->index = rc;
663 return 0;
664 }
665
666 return rc;
667 }
668
rvu_mbox_handler_cgx_mac_addr_del(struct rvu * rvu,struct cgx_mac_addr_del_req * req,struct msg_rsp * rsp)669 int rvu_mbox_handler_cgx_mac_addr_del(struct rvu *rvu,
670 struct cgx_mac_addr_del_req *req,
671 struct msg_rsp *rsp)
672 {
673 int pf = rvu_get_pf(req->hdr.pcifunc);
674 u8 cgx_id, lmac_id;
675
676 if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
677 return -EPERM;
678
679 if (rvu_npc_exact_has_match_table(rvu))
680 return rvu_npc_exact_mac_addr_del(rvu, req, rsp);
681
682 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
683 return cgx_lmac_addr_del(cgx_id, lmac_id, req->index);
684 }
685
rvu_mbox_handler_cgx_mac_max_entries_get(struct rvu * rvu,struct msg_req * req,struct cgx_max_dmac_entries_get_rsp * rsp)686 int rvu_mbox_handler_cgx_mac_max_entries_get(struct rvu *rvu,
687 struct msg_req *req,
688 struct cgx_max_dmac_entries_get_rsp
689 *rsp)
690 {
691 int pf = rvu_get_pf(req->hdr.pcifunc);
692 u8 cgx_id, lmac_id;
693
694 /* If msg is received from PFs(which are not mapped to CGX LMACs)
695 * or VF then no entries are allocated for DMAC filters at CGX level.
696 * So returning zero.
697 */
698 if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc)) {
699 rsp->max_dmac_filters = 0;
700 return 0;
701 }
702
703 if (rvu_npc_exact_has_match_table(rvu)) {
704 rsp->max_dmac_filters = rvu_npc_exact_get_max_entries(rvu);
705 return 0;
706 }
707
708 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
709 rsp->max_dmac_filters = cgx_lmac_addr_max_entries_get(cgx_id, lmac_id);
710 return 0;
711 }
712
rvu_mbox_handler_cgx_mac_addr_get(struct rvu * rvu,struct cgx_mac_addr_set_or_get * req,struct cgx_mac_addr_set_or_get * rsp)713 int rvu_mbox_handler_cgx_mac_addr_get(struct rvu *rvu,
714 struct cgx_mac_addr_set_or_get *req,
715 struct cgx_mac_addr_set_or_get *rsp)
716 {
717 int pf = rvu_get_pf(req->hdr.pcifunc);
718 u8 cgx_id, lmac_id;
719 int rc = 0;
720 u64 cfg;
721
722 if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
723 return -EPERM;
724
725 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
726
727 rsp->hdr.rc = rc;
728 cfg = cgx_lmac_addr_get(cgx_id, lmac_id);
729 /* copy 48 bit mac address to req->mac_addr */
730 u64_to_ether_addr(cfg, rsp->mac_addr);
731 return 0;
732 }
733
rvu_mbox_handler_cgx_promisc_enable(struct rvu * rvu,struct msg_req * req,struct msg_rsp * rsp)734 int rvu_mbox_handler_cgx_promisc_enable(struct rvu *rvu, struct msg_req *req,
735 struct msg_rsp *rsp)
736 {
737 u16 pcifunc = req->hdr.pcifunc;
738 int pf = rvu_get_pf(pcifunc);
739 u8 cgx_id, lmac_id;
740
741 if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
742 return -EPERM;
743
744 /* Disable drop on non hit rule */
745 if (rvu_npc_exact_has_match_table(rvu))
746 return rvu_npc_exact_promisc_enable(rvu, req->hdr.pcifunc);
747
748 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
749
750 cgx_lmac_promisc_config(cgx_id, lmac_id, true);
751 return 0;
752 }
753
rvu_mbox_handler_cgx_promisc_disable(struct rvu * rvu,struct msg_req * req,struct msg_rsp * rsp)754 int rvu_mbox_handler_cgx_promisc_disable(struct rvu *rvu, struct msg_req *req,
755 struct msg_rsp *rsp)
756 {
757 int pf = rvu_get_pf(req->hdr.pcifunc);
758 u8 cgx_id, lmac_id;
759
760 if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
761 return -EPERM;
762
763 /* Disable drop on non hit rule */
764 if (rvu_npc_exact_has_match_table(rvu))
765 return rvu_npc_exact_promisc_disable(rvu, req->hdr.pcifunc);
766
767 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
768
769 cgx_lmac_promisc_config(cgx_id, lmac_id, false);
770 return 0;
771 }
772
rvu_cgx_ptp_rx_cfg(struct rvu * rvu,u16 pcifunc,bool enable)773 static int rvu_cgx_ptp_rx_cfg(struct rvu *rvu, u16 pcifunc, bool enable)
774 {
775 struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc);
776 int pf = rvu_get_pf(pcifunc);
777 struct mac_ops *mac_ops;
778 u8 cgx_id, lmac_id;
779 void *cgxd;
780
781 if (!is_mac_feature_supported(rvu, pf, RVU_LMAC_FEAT_PTP))
782 return 0;
783
784 /* This msg is expected only from PFs that are mapped to CGX LMACs,
785 * if received from other PF/VF simply ACK, nothing to do.
786 */
787 if ((pcifunc & RVU_PFVF_FUNC_MASK) ||
788 !is_pf_cgxmapped(rvu, pf))
789 return -ENODEV;
790
791 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
792 cgxd = rvu_cgx_pdata(cgx_id, rvu);
793
794 mac_ops = get_mac_ops(cgxd);
795 mac_ops->mac_enadis_ptp_config(cgxd, lmac_id, enable);
796 /* If PTP is enabled then inform NPC that packets to be
797 * parsed by this PF will have their data shifted by 8 bytes
798 * and if PTP is disabled then no shift is required
799 */
800 if (npc_config_ts_kpuaction(rvu, pf, pcifunc, enable))
801 return -EINVAL;
802 /* This flag is required to clean up CGX conf if app gets killed */
803 pfvf->hw_rx_tstamp_en = enable;
804
805 /* Inform MCS about 8B RX header */
806 rvu_mcs_ptp_cfg(rvu, cgx_id, lmac_id, enable);
807 return 0;
808 }
809
rvu_mbox_handler_cgx_ptp_rx_enable(struct rvu * rvu,struct msg_req * req,struct msg_rsp * rsp)810 int rvu_mbox_handler_cgx_ptp_rx_enable(struct rvu *rvu, struct msg_req *req,
811 struct msg_rsp *rsp)
812 {
813 if (!is_pf_cgxmapped(rvu, rvu_get_pf(req->hdr.pcifunc)))
814 return -EPERM;
815
816 return rvu_cgx_ptp_rx_cfg(rvu, req->hdr.pcifunc, true);
817 }
818
rvu_mbox_handler_cgx_ptp_rx_disable(struct rvu * rvu,struct msg_req * req,struct msg_rsp * rsp)819 int rvu_mbox_handler_cgx_ptp_rx_disable(struct rvu *rvu, struct msg_req *req,
820 struct msg_rsp *rsp)
821 {
822 return rvu_cgx_ptp_rx_cfg(rvu, req->hdr.pcifunc, false);
823 }
824
rvu_cgx_config_linkevents(struct rvu * rvu,u16 pcifunc,bool en)825 static int rvu_cgx_config_linkevents(struct rvu *rvu, u16 pcifunc, bool en)
826 {
827 int pf = rvu_get_pf(pcifunc);
828 u8 cgx_id, lmac_id;
829
830 if (!is_cgx_config_permitted(rvu, pcifunc))
831 return -EPERM;
832
833 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
834
835 if (en) {
836 set_bit(pf, &rvu->pf_notify_bmap);
837 /* Send the current link status to PF */
838 rvu_cgx_send_link_info(cgx_id, lmac_id, rvu);
839 } else {
840 clear_bit(pf, &rvu->pf_notify_bmap);
841 }
842
843 return 0;
844 }
845
rvu_mbox_handler_cgx_start_linkevents(struct rvu * rvu,struct msg_req * req,struct msg_rsp * rsp)846 int rvu_mbox_handler_cgx_start_linkevents(struct rvu *rvu, struct msg_req *req,
847 struct msg_rsp *rsp)
848 {
849 rvu_cgx_config_linkevents(rvu, req->hdr.pcifunc, true);
850 return 0;
851 }
852
rvu_mbox_handler_cgx_stop_linkevents(struct rvu * rvu,struct msg_req * req,struct msg_rsp * rsp)853 int rvu_mbox_handler_cgx_stop_linkevents(struct rvu *rvu, struct msg_req *req,
854 struct msg_rsp *rsp)
855 {
856 rvu_cgx_config_linkevents(rvu, req->hdr.pcifunc, false);
857 return 0;
858 }
859
rvu_mbox_handler_cgx_get_linkinfo(struct rvu * rvu,struct msg_req * req,struct cgx_link_info_msg * rsp)860 int rvu_mbox_handler_cgx_get_linkinfo(struct rvu *rvu, struct msg_req *req,
861 struct cgx_link_info_msg *rsp)
862 {
863 u8 cgx_id, lmac_id;
864 int pf, err;
865
866 pf = rvu_get_pf(req->hdr.pcifunc);
867
868 if (!is_pf_cgxmapped(rvu, pf))
869 return -ENODEV;
870
871 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
872
873 err = cgx_get_link_info(rvu_cgx_pdata(cgx_id, rvu), lmac_id,
874 &rsp->link_info);
875 return err;
876 }
877
rvu_mbox_handler_cgx_features_get(struct rvu * rvu,struct msg_req * req,struct cgx_features_info_msg * rsp)878 int rvu_mbox_handler_cgx_features_get(struct rvu *rvu,
879 struct msg_req *req,
880 struct cgx_features_info_msg *rsp)
881 {
882 int pf = rvu_get_pf(req->hdr.pcifunc);
883 u8 cgx_idx, lmac;
884 void *cgxd;
885
886 if (!is_pf_cgxmapped(rvu, pf))
887 return 0;
888
889 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_idx, &lmac);
890 cgxd = rvu_cgx_pdata(cgx_idx, rvu);
891 rsp->lmac_features = cgx_features_get(cgxd);
892
893 return 0;
894 }
895
rvu_cgx_get_fifolen(struct rvu * rvu)896 u32 rvu_cgx_get_fifolen(struct rvu *rvu)
897 {
898 struct mac_ops *mac_ops;
899 u32 fifo_len;
900
901 mac_ops = get_mac_ops(rvu_first_cgx_pdata(rvu));
902 fifo_len = mac_ops ? mac_ops->fifo_len : 0;
903
904 return fifo_len;
905 }
906
rvu_cgx_get_lmac_fifolen(struct rvu * rvu,int cgx,int lmac)907 u32 rvu_cgx_get_lmac_fifolen(struct rvu *rvu, int cgx, int lmac)
908 {
909 struct mac_ops *mac_ops;
910 void *cgxd;
911
912 cgxd = rvu_cgx_pdata(cgx, rvu);
913 if (!cgxd)
914 return 0;
915
916 mac_ops = get_mac_ops(cgxd);
917 if (!mac_ops->lmac_fifo_len)
918 return 0;
919
920 return mac_ops->lmac_fifo_len(cgxd, lmac);
921 }
922
rvu_cgx_config_intlbk(struct rvu * rvu,u16 pcifunc,bool en)923 static int rvu_cgx_config_intlbk(struct rvu *rvu, u16 pcifunc, bool en)
924 {
925 int pf = rvu_get_pf(pcifunc);
926 struct mac_ops *mac_ops;
927 u8 cgx_id, lmac_id;
928
929 if (!is_cgx_config_permitted(rvu, pcifunc))
930 return -EPERM;
931
932 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
933 mac_ops = get_mac_ops(rvu_cgx_pdata(cgx_id, rvu));
934
935 return mac_ops->mac_lmac_intl_lbk(rvu_cgx_pdata(cgx_id, rvu),
936 lmac_id, en);
937 }
938
rvu_mbox_handler_cgx_intlbk_enable(struct rvu * rvu,struct msg_req * req,struct msg_rsp * rsp)939 int rvu_mbox_handler_cgx_intlbk_enable(struct rvu *rvu, struct msg_req *req,
940 struct msg_rsp *rsp)
941 {
942 rvu_cgx_config_intlbk(rvu, req->hdr.pcifunc, true);
943 return 0;
944 }
945
rvu_mbox_handler_cgx_intlbk_disable(struct rvu * rvu,struct msg_req * req,struct msg_rsp * rsp)946 int rvu_mbox_handler_cgx_intlbk_disable(struct rvu *rvu, struct msg_req *req,
947 struct msg_rsp *rsp)
948 {
949 rvu_cgx_config_intlbk(rvu, req->hdr.pcifunc, false);
950 return 0;
951 }
952
rvu_cgx_cfg_pause_frm(struct rvu * rvu,u16 pcifunc,u8 tx_pause,u8 rx_pause)953 int rvu_cgx_cfg_pause_frm(struct rvu *rvu, u16 pcifunc, u8 tx_pause, u8 rx_pause)
954 {
955 int pf = rvu_get_pf(pcifunc);
956 u8 rx_pfc = 0, tx_pfc = 0;
957 struct mac_ops *mac_ops;
958 u8 cgx_id, lmac_id;
959 void *cgxd;
960
961 if (!is_mac_feature_supported(rvu, pf, RVU_LMAC_FEAT_FC))
962 return 0;
963
964 /* This msg is expected only from PF/VFs that are mapped to CGX LMACs,
965 * if received from other PF/VF simply ACK, nothing to do.
966 */
967 if (!is_pf_cgxmapped(rvu, pf))
968 return LMAC_AF_ERR_PF_NOT_MAPPED;
969
970 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
971 cgxd = rvu_cgx_pdata(cgx_id, rvu);
972 mac_ops = get_mac_ops(cgxd);
973
974 mac_ops->mac_get_pfc_frm_cfg(cgxd, lmac_id, &tx_pfc, &rx_pfc);
975 if (tx_pfc || rx_pfc) {
976 dev_warn(rvu->dev,
977 "Can not configure 802.3X flow control as PFC frames are enabled");
978 return LMAC_AF_ERR_8023PAUSE_ENADIS_PERM_DENIED;
979 }
980
981 mutex_lock(&rvu->rsrc_lock);
982 if (verify_lmac_fc_cfg(cgxd, lmac_id, tx_pause, rx_pause,
983 pcifunc & RVU_PFVF_FUNC_MASK)) {
984 mutex_unlock(&rvu->rsrc_lock);
985 return LMAC_AF_ERR_PERM_DENIED;
986 }
987 mutex_unlock(&rvu->rsrc_lock);
988
989 return mac_ops->mac_enadis_pause_frm(cgxd, lmac_id, tx_pause, rx_pause);
990 }
991
rvu_mbox_handler_cgx_cfg_pause_frm(struct rvu * rvu,struct cgx_pause_frm_cfg * req,struct cgx_pause_frm_cfg * rsp)992 int rvu_mbox_handler_cgx_cfg_pause_frm(struct rvu *rvu,
993 struct cgx_pause_frm_cfg *req,
994 struct cgx_pause_frm_cfg *rsp)
995 {
996 int pf = rvu_get_pf(req->hdr.pcifunc);
997 struct mac_ops *mac_ops;
998 u8 cgx_id, lmac_id;
999 int err = 0;
1000 void *cgxd;
1001
1002 /* This msg is expected only from PF/VFs that are mapped to CGX LMACs,
1003 * if received from other PF/VF simply ACK, nothing to do.
1004 */
1005 if (!is_pf_cgxmapped(rvu, pf))
1006 return -ENODEV;
1007
1008 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
1009 cgxd = rvu_cgx_pdata(cgx_id, rvu);
1010 mac_ops = get_mac_ops(cgxd);
1011
1012 if (req->set)
1013 err = rvu_cgx_cfg_pause_frm(rvu, req->hdr.pcifunc, req->tx_pause, req->rx_pause);
1014 else
1015 mac_ops->mac_get_pause_frm_status(cgxd, lmac_id, &rsp->tx_pause, &rsp->rx_pause);
1016
1017 return err;
1018 }
1019
rvu_mbox_handler_cgx_get_phy_fec_stats(struct rvu * rvu,struct msg_req * req,struct msg_rsp * rsp)1020 int rvu_mbox_handler_cgx_get_phy_fec_stats(struct rvu *rvu, struct msg_req *req,
1021 struct msg_rsp *rsp)
1022 {
1023 int pf = rvu_get_pf(req->hdr.pcifunc);
1024 u8 cgx_id, lmac_id;
1025
1026 if (!is_pf_cgxmapped(rvu, pf))
1027 return LMAC_AF_ERR_PF_NOT_MAPPED;
1028
1029 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
1030 return cgx_get_phy_fec_stats(rvu_cgx_pdata(cgx_id, rvu), lmac_id);
1031 }
1032
1033 /* Finds cumulative status of NIX rx/tx counters from LF of a PF and those
1034 * from its VFs as well. ie. NIX rx/tx counters at the CGX port level
1035 */
rvu_cgx_nix_cuml_stats(struct rvu * rvu,void * cgxd,int lmac_id,int index,int rxtxflag,u64 * stat)1036 int rvu_cgx_nix_cuml_stats(struct rvu *rvu, void *cgxd, int lmac_id,
1037 int index, int rxtxflag, u64 *stat)
1038 {
1039 struct rvu_block *block;
1040 int blkaddr;
1041 u16 pcifunc;
1042 int pf, lf;
1043
1044 *stat = 0;
1045
1046 if (!cgxd || !rvu)
1047 return -EINVAL;
1048
1049 pf = cgxlmac_to_pf(rvu, cgx_get_cgxid(cgxd), lmac_id);
1050 if (pf < 0)
1051 return pf;
1052
1053 /* Assumes LF of a PF and all of its VF belongs to the same
1054 * NIX block
1055 */
1056 pcifunc = pf << RVU_PFVF_PF_SHIFT;
1057 blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc);
1058 if (blkaddr < 0)
1059 return 0;
1060 block = &rvu->hw->block[blkaddr];
1061
1062 for (lf = 0; lf < block->lf.max; lf++) {
1063 /* Check if a lf is attached to this PF or one of its VFs */
1064 if (!((block->fn_map[lf] & ~RVU_PFVF_FUNC_MASK) == (pcifunc &
1065 ~RVU_PFVF_FUNC_MASK)))
1066 continue;
1067 if (rxtxflag == NIX_STATS_RX)
1068 *stat += rvu_read64(rvu, blkaddr,
1069 NIX_AF_LFX_RX_STATX(lf, index));
1070 else
1071 *stat += rvu_read64(rvu, blkaddr,
1072 NIX_AF_LFX_TX_STATX(lf, index));
1073 }
1074
1075 return 0;
1076 }
1077
rvu_cgx_start_stop_io(struct rvu * rvu,u16 pcifunc,bool start)1078 int rvu_cgx_start_stop_io(struct rvu *rvu, u16 pcifunc, bool start)
1079 {
1080 struct rvu_pfvf *parent_pf, *pfvf;
1081 int cgx_users, err = 0;
1082
1083 if (!is_pf_cgxmapped(rvu, rvu_get_pf(pcifunc)))
1084 return 0;
1085
1086 parent_pf = &rvu->pf[rvu_get_pf(pcifunc)];
1087 pfvf = rvu_get_pfvf(rvu, pcifunc);
1088
1089 mutex_lock(&rvu->cgx_cfg_lock);
1090
1091 if (start && pfvf->cgx_in_use)
1092 goto exit; /* CGX is already started hence nothing to do */
1093 if (!start && !pfvf->cgx_in_use)
1094 goto exit; /* CGX is already stopped hence nothing to do */
1095
1096 if (start) {
1097 cgx_users = parent_pf->cgx_users;
1098 parent_pf->cgx_users++;
1099 } else {
1100 parent_pf->cgx_users--;
1101 cgx_users = parent_pf->cgx_users;
1102 }
1103
1104 /* Start CGX when first of all NIXLFs is started.
1105 * Stop CGX when last of all NIXLFs is stopped.
1106 */
1107 if (!cgx_users) {
1108 err = rvu_cgx_config_rxtx(rvu, pcifunc & ~RVU_PFVF_FUNC_MASK,
1109 start);
1110 if (err) {
1111 dev_err(rvu->dev, "Unable to %s CGX\n",
1112 start ? "start" : "stop");
1113 /* Revert the usage count in case of error */
1114 parent_pf->cgx_users = start ? parent_pf->cgx_users - 1
1115 : parent_pf->cgx_users + 1;
1116 goto exit;
1117 }
1118 }
1119 pfvf->cgx_in_use = start;
1120 exit:
1121 mutex_unlock(&rvu->cgx_cfg_lock);
1122 return err;
1123 }
1124
rvu_mbox_handler_cgx_set_fec_param(struct rvu * rvu,struct fec_mode * req,struct fec_mode * rsp)1125 int rvu_mbox_handler_cgx_set_fec_param(struct rvu *rvu,
1126 struct fec_mode *req,
1127 struct fec_mode *rsp)
1128 {
1129 int pf = rvu_get_pf(req->hdr.pcifunc);
1130 u8 cgx_id, lmac_id;
1131
1132 if (!is_pf_cgxmapped(rvu, pf))
1133 return -EPERM;
1134
1135 if (req->fec == OTX2_FEC_OFF)
1136 req->fec = OTX2_FEC_NONE;
1137 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
1138 rsp->fec = cgx_set_fec(req->fec, cgx_id, lmac_id);
1139 return 0;
1140 }
1141
rvu_mbox_handler_cgx_get_aux_link_info(struct rvu * rvu,struct msg_req * req,struct cgx_fw_data * rsp)1142 int rvu_mbox_handler_cgx_get_aux_link_info(struct rvu *rvu, struct msg_req *req,
1143 struct cgx_fw_data *rsp)
1144 {
1145 int pf = rvu_get_pf(req->hdr.pcifunc);
1146 u8 cgx_id, lmac_id;
1147
1148 if (!rvu->fwdata)
1149 return LMAC_AF_ERR_FIRMWARE_DATA_NOT_MAPPED;
1150
1151 if (!is_pf_cgxmapped(rvu, pf))
1152 return -EPERM;
1153
1154 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
1155
1156 if (rvu->hw->lmac_per_cgx == CGX_LMACS_USX)
1157 memcpy(&rsp->fwdata,
1158 &rvu->fwdata->cgx_fw_data_usx[cgx_id][lmac_id],
1159 sizeof(struct cgx_lmac_fwdata_s));
1160 else
1161 memcpy(&rsp->fwdata,
1162 &rvu->fwdata->cgx_fw_data[cgx_id][lmac_id],
1163 sizeof(struct cgx_lmac_fwdata_s));
1164
1165 return 0;
1166 }
1167
rvu_mbox_handler_cgx_set_link_mode(struct rvu * rvu,struct cgx_set_link_mode_req * req,struct cgx_set_link_mode_rsp * rsp)1168 int rvu_mbox_handler_cgx_set_link_mode(struct rvu *rvu,
1169 struct cgx_set_link_mode_req *req,
1170 struct cgx_set_link_mode_rsp *rsp)
1171 {
1172 int pf = rvu_get_pf(req->hdr.pcifunc);
1173 u8 cgx_idx, lmac;
1174 void *cgxd;
1175
1176 if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
1177 return -EPERM;
1178
1179 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_idx, &lmac);
1180 cgxd = rvu_cgx_pdata(cgx_idx, rvu);
1181 rsp->status = cgx_set_link_mode(cgxd, req->args, cgx_idx, lmac);
1182 return 0;
1183 }
1184
rvu_mbox_handler_cgx_mac_addr_reset(struct rvu * rvu,struct cgx_mac_addr_reset_req * req,struct msg_rsp * rsp)1185 int rvu_mbox_handler_cgx_mac_addr_reset(struct rvu *rvu, struct cgx_mac_addr_reset_req *req,
1186 struct msg_rsp *rsp)
1187 {
1188 int pf = rvu_get_pf(req->hdr.pcifunc);
1189 u8 cgx_id, lmac_id;
1190
1191 if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
1192 return LMAC_AF_ERR_PERM_DENIED;
1193
1194 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
1195
1196 if (rvu_npc_exact_has_match_table(rvu))
1197 return rvu_npc_exact_mac_addr_reset(rvu, req, rsp);
1198
1199 return cgx_lmac_addr_reset(cgx_id, lmac_id);
1200 }
1201
rvu_mbox_handler_cgx_mac_addr_update(struct rvu * rvu,struct cgx_mac_addr_update_req * req,struct cgx_mac_addr_update_rsp * rsp)1202 int rvu_mbox_handler_cgx_mac_addr_update(struct rvu *rvu,
1203 struct cgx_mac_addr_update_req *req,
1204 struct cgx_mac_addr_update_rsp *rsp)
1205 {
1206 int pf = rvu_get_pf(req->hdr.pcifunc);
1207 u8 cgx_id, lmac_id;
1208
1209 if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
1210 return LMAC_AF_ERR_PERM_DENIED;
1211
1212 if (rvu_npc_exact_has_match_table(rvu))
1213 return rvu_npc_exact_mac_addr_update(rvu, req, rsp);
1214
1215 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
1216 return cgx_lmac_addr_update(cgx_id, lmac_id, req->mac_addr, req->index);
1217 }
1218
rvu_cgx_prio_flow_ctrl_cfg(struct rvu * rvu,u16 pcifunc,u8 tx_pause,u8 rx_pause,u16 pfc_en)1219 int rvu_cgx_prio_flow_ctrl_cfg(struct rvu *rvu, u16 pcifunc, u8 tx_pause,
1220 u8 rx_pause, u16 pfc_en)
1221 {
1222 int pf = rvu_get_pf(pcifunc);
1223 u8 rx_8023 = 0, tx_8023 = 0;
1224 struct mac_ops *mac_ops;
1225 u8 cgx_id, lmac_id;
1226 void *cgxd;
1227
1228 /* This msg is expected only from PF/VFs that are mapped to CGX LMACs,
1229 * if received from other PF/VF simply ACK, nothing to do.
1230 */
1231 if (!is_pf_cgxmapped(rvu, pf))
1232 return -ENODEV;
1233
1234 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
1235 cgxd = rvu_cgx_pdata(cgx_id, rvu);
1236 mac_ops = get_mac_ops(cgxd);
1237
1238 mac_ops->mac_get_pause_frm_status(cgxd, lmac_id, &tx_8023, &rx_8023);
1239 if (tx_8023 || rx_8023) {
1240 dev_warn(rvu->dev,
1241 "Can not configure PFC as 802.3X pause frames are enabled");
1242 return LMAC_AF_ERR_PFC_ENADIS_PERM_DENIED;
1243 }
1244
1245 mutex_lock(&rvu->rsrc_lock);
1246 if (verify_lmac_fc_cfg(cgxd, lmac_id, tx_pause, rx_pause,
1247 pcifunc & RVU_PFVF_FUNC_MASK)) {
1248 mutex_unlock(&rvu->rsrc_lock);
1249 return LMAC_AF_ERR_PERM_DENIED;
1250 }
1251 mutex_unlock(&rvu->rsrc_lock);
1252
1253 return mac_ops->pfc_config(cgxd, lmac_id, tx_pause, rx_pause, pfc_en);
1254 }
1255
rvu_mbox_handler_cgx_prio_flow_ctrl_cfg(struct rvu * rvu,struct cgx_pfc_cfg * req,struct cgx_pfc_rsp * rsp)1256 int rvu_mbox_handler_cgx_prio_flow_ctrl_cfg(struct rvu *rvu,
1257 struct cgx_pfc_cfg *req,
1258 struct cgx_pfc_rsp *rsp)
1259 {
1260 int pf = rvu_get_pf(req->hdr.pcifunc);
1261 struct mac_ops *mac_ops;
1262 u8 cgx_id, lmac_id;
1263 void *cgxd;
1264 int err;
1265
1266 /* This msg is expected only from PF/VFs that are mapped to CGX LMACs,
1267 * if received from other PF/VF simply ACK, nothing to do.
1268 */
1269 if (!is_pf_cgxmapped(rvu, pf))
1270 return -ENODEV;
1271
1272 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
1273 cgxd = rvu_cgx_pdata(cgx_id, rvu);
1274 mac_ops = get_mac_ops(cgxd);
1275
1276 err = rvu_cgx_prio_flow_ctrl_cfg(rvu, req->hdr.pcifunc, req->tx_pause,
1277 req->rx_pause, req->pfc_en);
1278
1279 mac_ops->mac_get_pfc_frm_cfg(cgxd, lmac_id, &rsp->tx_pause, &rsp->rx_pause);
1280 return err;
1281 }
1282
rvu_mac_reset(struct rvu * rvu,u16 pcifunc)1283 void rvu_mac_reset(struct rvu *rvu, u16 pcifunc)
1284 {
1285 int pf = rvu_get_pf(pcifunc);
1286 struct mac_ops *mac_ops;
1287 struct cgx *cgxd;
1288 u8 cgx, lmac;
1289
1290 if (!is_pf_cgxmapped(rvu, pf))
1291 return;
1292
1293 rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx, &lmac);
1294 cgxd = rvu_cgx_pdata(cgx, rvu);
1295 mac_ops = get_mac_ops(cgxd);
1296
1297 if (mac_ops->mac_reset(cgxd, lmac, !is_vf(pcifunc)))
1298 dev_err(rvu->dev, "Failed to reset MAC\n");
1299 }
1300