xref: /linux/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c (revision 71dfa617ea9f18e4585fe78364217cd32b1fc382)
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 
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 */
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 
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 
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 
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 */
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 */
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 
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 
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 */
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 
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 
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 
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 
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 
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 
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  */
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 PF/VFs that are mapped to CGX/RPM LMACs,
785 	 * if received from other PF/VF simply ACK, nothing to do.
786 	 */
787 	if (!is_pf_cgxmapped(rvu, pf))
788 		return -EPERM;
789 
790 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
791 	cgxd = rvu_cgx_pdata(cgx_id, rvu);
792 
793 	mac_ops = get_mac_ops(cgxd);
794 	mac_ops->mac_enadis_ptp_config(cgxd, lmac_id, enable);
795 	/* If PTP is enabled then inform NPC that packets to be
796 	 * parsed by this PF will have their data shifted by 8 bytes
797 	 * and if PTP is disabled then no shift is required
798 	 */
799 	if (npc_config_ts_kpuaction(rvu, pf, pcifunc, enable))
800 		return -EINVAL;
801 	/* This flag is required to clean up CGX conf if app gets killed */
802 	pfvf->hw_rx_tstamp_en = enable;
803 
804 	/* Inform MCS about 8B RX header */
805 	rvu_mcs_ptp_cfg(rvu, cgx_id, lmac_id, enable);
806 	return 0;
807 }
808 
809 int rvu_mbox_handler_cgx_ptp_rx_enable(struct rvu *rvu, struct msg_req *req,
810 				       struct msg_rsp *rsp)
811 {
812 	if (!is_pf_cgxmapped(rvu, rvu_get_pf(req->hdr.pcifunc)))
813 		return -EPERM;
814 
815 	return rvu_cgx_ptp_rx_cfg(rvu, req->hdr.pcifunc, true);
816 }
817 
818 int rvu_mbox_handler_cgx_ptp_rx_disable(struct rvu *rvu, struct msg_req *req,
819 					struct msg_rsp *rsp)
820 {
821 	return rvu_cgx_ptp_rx_cfg(rvu, req->hdr.pcifunc, false);
822 }
823 
824 static int rvu_cgx_config_linkevents(struct rvu *rvu, u16 pcifunc, bool en)
825 {
826 	int pf = rvu_get_pf(pcifunc);
827 	u8 cgx_id, lmac_id;
828 
829 	if (!is_cgx_config_permitted(rvu, pcifunc))
830 		return -EPERM;
831 
832 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
833 
834 	if (en) {
835 		set_bit(pf, &rvu->pf_notify_bmap);
836 		/* Send the current link status to PF */
837 		rvu_cgx_send_link_info(cgx_id, lmac_id, rvu);
838 	} else {
839 		clear_bit(pf, &rvu->pf_notify_bmap);
840 	}
841 
842 	return 0;
843 }
844 
845 int rvu_mbox_handler_cgx_start_linkevents(struct rvu *rvu, struct msg_req *req,
846 					  struct msg_rsp *rsp)
847 {
848 	rvu_cgx_config_linkevents(rvu, req->hdr.pcifunc, true);
849 	return 0;
850 }
851 
852 int rvu_mbox_handler_cgx_stop_linkevents(struct rvu *rvu, struct msg_req *req,
853 					 struct msg_rsp *rsp)
854 {
855 	rvu_cgx_config_linkevents(rvu, req->hdr.pcifunc, false);
856 	return 0;
857 }
858 
859 int rvu_mbox_handler_cgx_get_linkinfo(struct rvu *rvu, struct msg_req *req,
860 				      struct cgx_link_info_msg *rsp)
861 {
862 	u8 cgx_id, lmac_id;
863 	int pf, err;
864 
865 	pf = rvu_get_pf(req->hdr.pcifunc);
866 
867 	if (!is_pf_cgxmapped(rvu, pf))
868 		return -ENODEV;
869 
870 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
871 
872 	err = cgx_get_link_info(rvu_cgx_pdata(cgx_id, rvu), lmac_id,
873 				&rsp->link_info);
874 	return err;
875 }
876 
877 int rvu_mbox_handler_cgx_features_get(struct rvu *rvu,
878 				      struct msg_req *req,
879 				      struct cgx_features_info_msg *rsp)
880 {
881 	int pf = rvu_get_pf(req->hdr.pcifunc);
882 	u8 cgx_idx, lmac;
883 	void *cgxd;
884 
885 	if (!is_pf_cgxmapped(rvu, pf))
886 		return 0;
887 
888 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_idx, &lmac);
889 	cgxd = rvu_cgx_pdata(cgx_idx, rvu);
890 	rsp->lmac_features = cgx_features_get(cgxd);
891 
892 	return 0;
893 }
894 
895 u32 rvu_cgx_get_fifolen(struct rvu *rvu)
896 {
897 	struct mac_ops *mac_ops;
898 	u32 fifo_len;
899 
900 	mac_ops = get_mac_ops(rvu_first_cgx_pdata(rvu));
901 	fifo_len = mac_ops ? mac_ops->fifo_len : 0;
902 
903 	return fifo_len;
904 }
905 
906 u32 rvu_cgx_get_lmac_fifolen(struct rvu *rvu, int cgx, int lmac)
907 {
908 	struct mac_ops *mac_ops;
909 	void *cgxd;
910 
911 	cgxd = rvu_cgx_pdata(cgx, rvu);
912 	if (!cgxd)
913 		return 0;
914 
915 	mac_ops = get_mac_ops(cgxd);
916 	if (!mac_ops->lmac_fifo_len)
917 		return 0;
918 
919 	return mac_ops->lmac_fifo_len(cgxd, lmac);
920 }
921 
922 static int rvu_cgx_config_intlbk(struct rvu *rvu, u16 pcifunc, bool en)
923 {
924 	int pf = rvu_get_pf(pcifunc);
925 	struct mac_ops *mac_ops;
926 	u8 cgx_id, lmac_id;
927 
928 	if (!is_cgx_config_permitted(rvu, pcifunc))
929 		return -EPERM;
930 
931 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
932 	mac_ops = get_mac_ops(rvu_cgx_pdata(cgx_id, rvu));
933 
934 	return mac_ops->mac_lmac_intl_lbk(rvu_cgx_pdata(cgx_id, rvu),
935 					  lmac_id, en);
936 }
937 
938 int rvu_mbox_handler_cgx_intlbk_enable(struct rvu *rvu, struct msg_req *req,
939 				       struct msg_rsp *rsp)
940 {
941 	rvu_cgx_config_intlbk(rvu, req->hdr.pcifunc, true);
942 	return 0;
943 }
944 
945 int rvu_mbox_handler_cgx_intlbk_disable(struct rvu *rvu, struct msg_req *req,
946 					struct msg_rsp *rsp)
947 {
948 	rvu_cgx_config_intlbk(rvu, req->hdr.pcifunc, false);
949 	return 0;
950 }
951 
952 int rvu_cgx_cfg_pause_frm(struct rvu *rvu, u16 pcifunc, u8 tx_pause, u8 rx_pause)
953 {
954 	int pf = rvu_get_pf(pcifunc);
955 	u8 rx_pfc = 0, tx_pfc = 0;
956 	struct mac_ops *mac_ops;
957 	u8 cgx_id, lmac_id;
958 	void *cgxd;
959 
960 	if (!is_mac_feature_supported(rvu, pf, RVU_LMAC_FEAT_FC))
961 		return 0;
962 
963 	/* This msg is expected only from PF/VFs that are mapped to CGX LMACs,
964 	 * if received from other PF/VF simply ACK, nothing to do.
965 	 */
966 	if (!is_pf_cgxmapped(rvu, pf))
967 		return LMAC_AF_ERR_PF_NOT_MAPPED;
968 
969 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
970 	cgxd = rvu_cgx_pdata(cgx_id, rvu);
971 	mac_ops = get_mac_ops(cgxd);
972 
973 	mac_ops->mac_get_pfc_frm_cfg(cgxd, lmac_id, &tx_pfc, &rx_pfc);
974 	if (tx_pfc || rx_pfc) {
975 		dev_warn(rvu->dev,
976 			 "Can not configure 802.3X flow control as PFC frames are enabled");
977 		return LMAC_AF_ERR_8023PAUSE_ENADIS_PERM_DENIED;
978 	}
979 
980 	mutex_lock(&rvu->rsrc_lock);
981 	if (verify_lmac_fc_cfg(cgxd, lmac_id, tx_pause, rx_pause,
982 			       pcifunc & RVU_PFVF_FUNC_MASK)) {
983 		mutex_unlock(&rvu->rsrc_lock);
984 		return LMAC_AF_ERR_PERM_DENIED;
985 	}
986 	mutex_unlock(&rvu->rsrc_lock);
987 
988 	return mac_ops->mac_enadis_pause_frm(cgxd, lmac_id, tx_pause, rx_pause);
989 }
990 
991 int rvu_mbox_handler_cgx_cfg_pause_frm(struct rvu *rvu,
992 				       struct cgx_pause_frm_cfg *req,
993 				       struct cgx_pause_frm_cfg *rsp)
994 {
995 	int pf = rvu_get_pf(req->hdr.pcifunc);
996 	struct mac_ops *mac_ops;
997 	u8 cgx_id, lmac_id;
998 	int err = 0;
999 	void *cgxd;
1000 
1001 	/* This msg is expected only from PF/VFs that are mapped to CGX LMACs,
1002 	 * if received from other PF/VF simply ACK, nothing to do.
1003 	 */
1004 	if (!is_pf_cgxmapped(rvu, pf))
1005 		return -ENODEV;
1006 
1007 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
1008 	cgxd = rvu_cgx_pdata(cgx_id, rvu);
1009 	mac_ops = get_mac_ops(cgxd);
1010 
1011 	if (req->set)
1012 		err = rvu_cgx_cfg_pause_frm(rvu, req->hdr.pcifunc, req->tx_pause, req->rx_pause);
1013 	else
1014 		mac_ops->mac_get_pause_frm_status(cgxd, lmac_id, &rsp->tx_pause, &rsp->rx_pause);
1015 
1016 	return err;
1017 }
1018 
1019 int rvu_mbox_handler_cgx_get_phy_fec_stats(struct rvu *rvu, struct msg_req *req,
1020 					   struct msg_rsp *rsp)
1021 {
1022 	int pf = rvu_get_pf(req->hdr.pcifunc);
1023 	u8 cgx_id, lmac_id;
1024 
1025 	if (!is_pf_cgxmapped(rvu, pf))
1026 		return LMAC_AF_ERR_PF_NOT_MAPPED;
1027 
1028 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
1029 	return cgx_get_phy_fec_stats(rvu_cgx_pdata(cgx_id, rvu), lmac_id);
1030 }
1031 
1032 /* Finds cumulative status of NIX rx/tx counters from LF of a PF and those
1033  * from its VFs as well. ie. NIX rx/tx counters at the CGX port level
1034  */
1035 int rvu_cgx_nix_cuml_stats(struct rvu *rvu, void *cgxd, int lmac_id,
1036 			   int index, int rxtxflag, u64 *stat)
1037 {
1038 	struct rvu_block *block;
1039 	int blkaddr;
1040 	u16 pcifunc;
1041 	int pf, lf;
1042 
1043 	*stat = 0;
1044 
1045 	if (!cgxd || !rvu)
1046 		return -EINVAL;
1047 
1048 	pf = cgxlmac_to_pf(rvu, cgx_get_cgxid(cgxd), lmac_id);
1049 	if (pf < 0)
1050 		return pf;
1051 
1052 	/* Assumes LF of a PF and all of its VF belongs to the same
1053 	 * NIX block
1054 	 */
1055 	pcifunc = pf << RVU_PFVF_PF_SHIFT;
1056 	blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc);
1057 	if (blkaddr < 0)
1058 		return 0;
1059 	block = &rvu->hw->block[blkaddr];
1060 
1061 	for (lf = 0; lf < block->lf.max; lf++) {
1062 		/* Check if a lf is attached to this PF or one of its VFs */
1063 		if (!((block->fn_map[lf] & ~RVU_PFVF_FUNC_MASK) == (pcifunc &
1064 			 ~RVU_PFVF_FUNC_MASK)))
1065 			continue;
1066 		if (rxtxflag == NIX_STATS_RX)
1067 			*stat += rvu_read64(rvu, blkaddr,
1068 					    NIX_AF_LFX_RX_STATX(lf, index));
1069 		else
1070 			*stat += rvu_read64(rvu, blkaddr,
1071 					    NIX_AF_LFX_TX_STATX(lf, index));
1072 	}
1073 
1074 	return 0;
1075 }
1076 
1077 int rvu_cgx_start_stop_io(struct rvu *rvu, u16 pcifunc, bool start)
1078 {
1079 	struct rvu_pfvf *parent_pf, *pfvf;
1080 	int cgx_users, err = 0;
1081 
1082 	if (!is_pf_cgxmapped(rvu, rvu_get_pf(pcifunc)))
1083 		return 0;
1084 
1085 	parent_pf = &rvu->pf[rvu_get_pf(pcifunc)];
1086 	pfvf = rvu_get_pfvf(rvu, pcifunc);
1087 
1088 	mutex_lock(&rvu->cgx_cfg_lock);
1089 
1090 	if (start && pfvf->cgx_in_use)
1091 		goto exit;  /* CGX is already started hence nothing to do */
1092 	if (!start && !pfvf->cgx_in_use)
1093 		goto exit; /* CGX is already stopped hence nothing to do */
1094 
1095 	if (start) {
1096 		cgx_users = parent_pf->cgx_users;
1097 		parent_pf->cgx_users++;
1098 	} else {
1099 		parent_pf->cgx_users--;
1100 		cgx_users = parent_pf->cgx_users;
1101 	}
1102 
1103 	/* Start CGX when first of all NIXLFs is started.
1104 	 * Stop CGX when last of all NIXLFs is stopped.
1105 	 */
1106 	if (!cgx_users) {
1107 		err = rvu_cgx_config_rxtx(rvu, pcifunc & ~RVU_PFVF_FUNC_MASK,
1108 					  start);
1109 		if (err) {
1110 			dev_err(rvu->dev, "Unable to %s CGX\n",
1111 				start ? "start" : "stop");
1112 			/* Revert the usage count in case of error */
1113 			parent_pf->cgx_users = start ? parent_pf->cgx_users  - 1
1114 					       : parent_pf->cgx_users  + 1;
1115 			goto exit;
1116 		}
1117 	}
1118 	pfvf->cgx_in_use = start;
1119 exit:
1120 	mutex_unlock(&rvu->cgx_cfg_lock);
1121 	return err;
1122 }
1123 
1124 int rvu_mbox_handler_cgx_set_fec_param(struct rvu *rvu,
1125 				       struct fec_mode *req,
1126 				       struct fec_mode *rsp)
1127 {
1128 	int pf = rvu_get_pf(req->hdr.pcifunc);
1129 	u8 cgx_id, lmac_id;
1130 
1131 	if (!is_pf_cgxmapped(rvu, pf))
1132 		return -EPERM;
1133 
1134 	if (req->fec == OTX2_FEC_OFF)
1135 		req->fec = OTX2_FEC_NONE;
1136 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
1137 	rsp->fec = cgx_set_fec(req->fec, cgx_id, lmac_id);
1138 	return 0;
1139 }
1140 
1141 int rvu_mbox_handler_cgx_get_aux_link_info(struct rvu *rvu, struct msg_req *req,
1142 					   struct cgx_fw_data *rsp)
1143 {
1144 	int pf = rvu_get_pf(req->hdr.pcifunc);
1145 	u8 cgx_id, lmac_id;
1146 
1147 	if (!rvu->fwdata)
1148 		return LMAC_AF_ERR_FIRMWARE_DATA_NOT_MAPPED;
1149 
1150 	if (!is_pf_cgxmapped(rvu, pf))
1151 		return -EPERM;
1152 
1153 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
1154 
1155 	if (rvu->hw->lmac_per_cgx == CGX_LMACS_USX)
1156 		memcpy(&rsp->fwdata,
1157 		       &rvu->fwdata->cgx_fw_data_usx[cgx_id][lmac_id],
1158 		       sizeof(struct cgx_lmac_fwdata_s));
1159 	else
1160 		memcpy(&rsp->fwdata,
1161 		       &rvu->fwdata->cgx_fw_data[cgx_id][lmac_id],
1162 		       sizeof(struct cgx_lmac_fwdata_s));
1163 
1164 	return 0;
1165 }
1166 
1167 int rvu_mbox_handler_cgx_set_link_mode(struct rvu *rvu,
1168 				       struct cgx_set_link_mode_req *req,
1169 				       struct cgx_set_link_mode_rsp *rsp)
1170 {
1171 	int pf = rvu_get_pf(req->hdr.pcifunc);
1172 	u8 cgx_idx, lmac;
1173 	void *cgxd;
1174 
1175 	if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
1176 		return -EPERM;
1177 
1178 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_idx, &lmac);
1179 	cgxd = rvu_cgx_pdata(cgx_idx, rvu);
1180 	rsp->status = cgx_set_link_mode(cgxd, req->args, cgx_idx, lmac);
1181 	return 0;
1182 }
1183 
1184 int rvu_mbox_handler_cgx_mac_addr_reset(struct rvu *rvu, struct cgx_mac_addr_reset_req *req,
1185 					struct msg_rsp *rsp)
1186 {
1187 	int pf = rvu_get_pf(req->hdr.pcifunc);
1188 	u8 cgx_id, lmac_id;
1189 
1190 	if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
1191 		return LMAC_AF_ERR_PERM_DENIED;
1192 
1193 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
1194 
1195 	if (rvu_npc_exact_has_match_table(rvu))
1196 		return rvu_npc_exact_mac_addr_reset(rvu, req, rsp);
1197 
1198 	return cgx_lmac_addr_reset(cgx_id, lmac_id);
1199 }
1200 
1201 int rvu_mbox_handler_cgx_mac_addr_update(struct rvu *rvu,
1202 					 struct cgx_mac_addr_update_req *req,
1203 					 struct cgx_mac_addr_update_rsp *rsp)
1204 {
1205 	int pf = rvu_get_pf(req->hdr.pcifunc);
1206 	u8 cgx_id, lmac_id;
1207 
1208 	if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
1209 		return LMAC_AF_ERR_PERM_DENIED;
1210 
1211 	if (rvu_npc_exact_has_match_table(rvu))
1212 		return rvu_npc_exact_mac_addr_update(rvu, req, rsp);
1213 
1214 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
1215 	return cgx_lmac_addr_update(cgx_id, lmac_id, req->mac_addr, req->index);
1216 }
1217 
1218 int rvu_cgx_prio_flow_ctrl_cfg(struct rvu *rvu, u16 pcifunc, u8 tx_pause,
1219 			       u8 rx_pause, u16 pfc_en)
1220 {
1221 	int pf = rvu_get_pf(pcifunc);
1222 	u8 rx_8023 = 0, tx_8023 = 0;
1223 	struct mac_ops *mac_ops;
1224 	u8 cgx_id, lmac_id;
1225 	void *cgxd;
1226 
1227 	/* This msg is expected only from PF/VFs that are mapped to CGX LMACs,
1228 	 * if received from other PF/VF simply ACK, nothing to do.
1229 	 */
1230 	if (!is_pf_cgxmapped(rvu, pf))
1231 		return -ENODEV;
1232 
1233 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
1234 	cgxd = rvu_cgx_pdata(cgx_id, rvu);
1235 	mac_ops = get_mac_ops(cgxd);
1236 
1237 	mac_ops->mac_get_pause_frm_status(cgxd, lmac_id, &tx_8023, &rx_8023);
1238 	if (tx_8023 || rx_8023) {
1239 		dev_warn(rvu->dev,
1240 			 "Can not configure PFC as 802.3X pause frames are enabled");
1241 		return LMAC_AF_ERR_PFC_ENADIS_PERM_DENIED;
1242 	}
1243 
1244 	mutex_lock(&rvu->rsrc_lock);
1245 	if (verify_lmac_fc_cfg(cgxd, lmac_id, tx_pause, rx_pause,
1246 			       pcifunc & RVU_PFVF_FUNC_MASK)) {
1247 		mutex_unlock(&rvu->rsrc_lock);
1248 		return LMAC_AF_ERR_PERM_DENIED;
1249 	}
1250 	mutex_unlock(&rvu->rsrc_lock);
1251 
1252 	return mac_ops->pfc_config(cgxd, lmac_id, tx_pause, rx_pause, pfc_en);
1253 }
1254 
1255 int rvu_mbox_handler_cgx_prio_flow_ctrl_cfg(struct rvu *rvu,
1256 					    struct cgx_pfc_cfg *req,
1257 					    struct cgx_pfc_rsp *rsp)
1258 {
1259 	int pf = rvu_get_pf(req->hdr.pcifunc);
1260 	struct mac_ops *mac_ops;
1261 	u8 cgx_id, lmac_id;
1262 	void *cgxd;
1263 	int err;
1264 
1265 	/* This msg is expected only from PF/VFs that are mapped to CGX LMACs,
1266 	 * if received from other PF/VF simply ACK, nothing to do.
1267 	 */
1268 	if (!is_pf_cgxmapped(rvu, pf))
1269 		return -ENODEV;
1270 
1271 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
1272 	cgxd = rvu_cgx_pdata(cgx_id, rvu);
1273 	mac_ops = get_mac_ops(cgxd);
1274 
1275 	err = rvu_cgx_prio_flow_ctrl_cfg(rvu, req->hdr.pcifunc, req->tx_pause,
1276 					 req->rx_pause, req->pfc_en);
1277 
1278 	mac_ops->mac_get_pfc_frm_cfg(cgxd, lmac_id, &rsp->tx_pause, &rsp->rx_pause);
1279 	return err;
1280 }
1281 
1282 void rvu_mac_reset(struct rvu *rvu, u16 pcifunc)
1283 {
1284 	int pf = rvu_get_pf(pcifunc);
1285 	struct mac_ops *mac_ops;
1286 	struct cgx *cgxd;
1287 	u8 cgx, lmac;
1288 
1289 	if (!is_pf_cgxmapped(rvu, pf))
1290 		return;
1291 
1292 	rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx, &lmac);
1293 	cgxd = rvu_cgx_pdata(cgx, rvu);
1294 	mac_ops = get_mac_ops(cgxd);
1295 
1296 	if (mac_ops->mac_reset(cgxd, lmac, !is_vf(pcifunc)))
1297 		dev_err(rvu->dev, "Failed to reset MAC\n");
1298 }
1299