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1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2 /* QLogic qed NIC Driver
3  * Copyright (c) 2015-2017  QLogic Corporation
4  * Copyright (c) 2019-2020 Marvell International Ltd.
5  */
6 
7 #include <linux/types.h>
8 #include <asm/byteorder.h>
9 #include <linux/io.h>
10 #include <linux/delay.h>
11 #include <linux/dma-mapping.h>
12 #include <linux/errno.h>
13 #include <linux/kernel.h>
14 #include <linux/mutex.h>
15 #include <linux/pci.h>
16 #include <linux/slab.h>
17 #include <linux/string.h>
18 #include <linux/vmalloc.h>
19 #include <linux/etherdevice.h>
20 #include <linux/qed/qed_chain.h>
21 #include <linux/qed/qed_if.h>
22 #include "qed.h"
23 #include "qed_cxt.h"
24 #include "qed_dcbx.h"
25 #include "qed_dev_api.h"
26 #include "qed_fcoe.h"
27 #include "qed_hsi.h"
28 #include "qed_hw.h"
29 #include "qed_init_ops.h"
30 #include "qed_int.h"
31 #include "qed_iscsi.h"
32 #include "qed_ll2.h"
33 #include "qed_mcp.h"
34 #include "qed_ooo.h"
35 #include "qed_reg_addr.h"
36 #include "qed_sp.h"
37 #include "qed_sriov.h"
38 #include "qed_vf.h"
39 #include "qed_rdma.h"
40 
41 static DEFINE_SPINLOCK(qm_lock);
42 
43 /******************** Doorbell Recovery *******************/
44 /* The doorbell recovery mechanism consists of a list of entries which represent
45  * doorbelling entities (l2 queues, roce sq/rq/cqs, the slowpath spq, etc). Each
46  * entity needs to register with the mechanism and provide the parameters
47  * describing it's doorbell, including a location where last used doorbell data
48  * can be found. The doorbell execute function will traverse the list and
49  * doorbell all of the registered entries.
50  */
51 struct qed_db_recovery_entry {
52 	struct list_head list_entry;
53 	void __iomem *db_addr;
54 	void *db_data;
55 	enum qed_db_rec_width db_width;
56 	enum qed_db_rec_space db_space;
57 	u8 hwfn_idx;
58 };
59 
60 /* Display a single doorbell recovery entry */
qed_db_recovery_dp_entry(struct qed_hwfn * p_hwfn,struct qed_db_recovery_entry * db_entry,char * action)61 static void qed_db_recovery_dp_entry(struct qed_hwfn *p_hwfn,
62 				     struct qed_db_recovery_entry *db_entry,
63 				     char *action)
64 {
65 	DP_VERBOSE(p_hwfn,
66 		   QED_MSG_SPQ,
67 		   "(%s: db_entry %p, addr %p, data %p, width %s, %s space, hwfn %d)\n",
68 		   action,
69 		   db_entry,
70 		   db_entry->db_addr,
71 		   db_entry->db_data,
72 		   db_entry->db_width == DB_REC_WIDTH_32B ? "32b" : "64b",
73 		   db_entry->db_space == DB_REC_USER ? "user" : "kernel",
74 		   db_entry->hwfn_idx);
75 }
76 
77 /* Doorbell address sanity (address within doorbell bar range) */
qed_db_rec_sanity(struct qed_dev * cdev,void __iomem * db_addr,enum qed_db_rec_width db_width,void * db_data)78 static bool qed_db_rec_sanity(struct qed_dev *cdev,
79 			      void __iomem *db_addr,
80 			      enum qed_db_rec_width db_width,
81 			      void *db_data)
82 {
83 	u32 width = (db_width == DB_REC_WIDTH_32B) ? 32 : 64;
84 
85 	/* Make sure doorbell address is within the doorbell bar */
86 	if (db_addr < cdev->doorbells ||
87 	    (u8 __iomem *)db_addr + width >
88 	    (u8 __iomem *)cdev->doorbells + cdev->db_size) {
89 		WARN(true,
90 		     "Illegal doorbell address: %p. Legal range for doorbell addresses is [%p..%p]\n",
91 		     db_addr,
92 		     cdev->doorbells,
93 		     (u8 __iomem *)cdev->doorbells + cdev->db_size);
94 		return false;
95 	}
96 
97 	/* ake sure doorbell data pointer is not null */
98 	if (!db_data) {
99 		WARN(true, "Illegal doorbell data pointer: %p", db_data);
100 		return false;
101 	}
102 
103 	return true;
104 }
105 
106 /* Find hwfn according to the doorbell address */
qed_db_rec_find_hwfn(struct qed_dev * cdev,void __iomem * db_addr)107 static struct qed_hwfn *qed_db_rec_find_hwfn(struct qed_dev *cdev,
108 					     void __iomem *db_addr)
109 {
110 	struct qed_hwfn *p_hwfn;
111 
112 	/* In CMT doorbell bar is split down the middle between engine 0 and enigne 1 */
113 	if (cdev->num_hwfns > 1)
114 		p_hwfn = db_addr < cdev->hwfns[1].doorbells ?
115 		    &cdev->hwfns[0] : &cdev->hwfns[1];
116 	else
117 		p_hwfn = QED_LEADING_HWFN(cdev);
118 
119 	return p_hwfn;
120 }
121 
122 /* Add a new entry to the doorbell recovery mechanism */
qed_db_recovery_add(struct qed_dev * cdev,void __iomem * db_addr,void * db_data,enum qed_db_rec_width db_width,enum qed_db_rec_space db_space)123 int qed_db_recovery_add(struct qed_dev *cdev,
124 			void __iomem *db_addr,
125 			void *db_data,
126 			enum qed_db_rec_width db_width,
127 			enum qed_db_rec_space db_space)
128 {
129 	struct qed_db_recovery_entry *db_entry;
130 	struct qed_hwfn *p_hwfn;
131 
132 	/* Shortcircuit VFs, for now */
133 	if (IS_VF(cdev)) {
134 		DP_VERBOSE(cdev,
135 			   QED_MSG_IOV, "db recovery - skipping VF doorbell\n");
136 		return 0;
137 	}
138 
139 	/* Sanitize doorbell address */
140 	if (!qed_db_rec_sanity(cdev, db_addr, db_width, db_data))
141 		return -EINVAL;
142 
143 	/* Obtain hwfn from doorbell address */
144 	p_hwfn = qed_db_rec_find_hwfn(cdev, db_addr);
145 
146 	/* Create entry */
147 	db_entry = kzalloc(sizeof(*db_entry), GFP_KERNEL);
148 	if (!db_entry) {
149 		DP_NOTICE(cdev, "Failed to allocate a db recovery entry\n");
150 		return -ENOMEM;
151 	}
152 
153 	/* Populate entry */
154 	db_entry->db_addr = db_addr;
155 	db_entry->db_data = db_data;
156 	db_entry->db_width = db_width;
157 	db_entry->db_space = db_space;
158 	db_entry->hwfn_idx = p_hwfn->my_id;
159 
160 	/* Display */
161 	qed_db_recovery_dp_entry(p_hwfn, db_entry, "Adding");
162 
163 	/* Protect the list */
164 	spin_lock_bh(&p_hwfn->db_recovery_info.lock);
165 	list_add_tail(&db_entry->list_entry, &p_hwfn->db_recovery_info.list);
166 	spin_unlock_bh(&p_hwfn->db_recovery_info.lock);
167 
168 	return 0;
169 }
170 
171 /* Remove an entry from the doorbell recovery mechanism */
qed_db_recovery_del(struct qed_dev * cdev,void __iomem * db_addr,void * db_data)172 int qed_db_recovery_del(struct qed_dev *cdev,
173 			void __iomem *db_addr, void *db_data)
174 {
175 	struct qed_db_recovery_entry *db_entry = NULL;
176 	struct qed_hwfn *p_hwfn;
177 	int rc = -EINVAL;
178 
179 	/* Shortcircuit VFs, for now */
180 	if (IS_VF(cdev)) {
181 		DP_VERBOSE(cdev,
182 			   QED_MSG_IOV, "db recovery - skipping VF doorbell\n");
183 		return 0;
184 	}
185 
186 	/* Obtain hwfn from doorbell address */
187 	p_hwfn = qed_db_rec_find_hwfn(cdev, db_addr);
188 
189 	/* Protect the list */
190 	spin_lock_bh(&p_hwfn->db_recovery_info.lock);
191 	list_for_each_entry(db_entry,
192 			    &p_hwfn->db_recovery_info.list, list_entry) {
193 		/* search according to db_data addr since db_addr is not unique (roce) */
194 		if (db_entry->db_data == db_data) {
195 			qed_db_recovery_dp_entry(p_hwfn, db_entry, "Deleting");
196 			list_del(&db_entry->list_entry);
197 			rc = 0;
198 			break;
199 		}
200 	}
201 
202 	spin_unlock_bh(&p_hwfn->db_recovery_info.lock);
203 
204 	if (rc == -EINVAL)
205 
206 		DP_NOTICE(p_hwfn,
207 			  "Failed to find element in list. Key (db_data addr) was %p. db_addr was %p\n",
208 			  db_data, db_addr);
209 	else
210 		kfree(db_entry);
211 
212 	return rc;
213 }
214 
215 /* Initialize the doorbell recovery mechanism */
qed_db_recovery_setup(struct qed_hwfn * p_hwfn)216 static int qed_db_recovery_setup(struct qed_hwfn *p_hwfn)
217 {
218 	DP_VERBOSE(p_hwfn, QED_MSG_SPQ, "Setting up db recovery\n");
219 
220 	/* Make sure db_size was set in cdev */
221 	if (!p_hwfn->cdev->db_size) {
222 		DP_ERR(p_hwfn->cdev, "db_size not set\n");
223 		return -EINVAL;
224 	}
225 
226 	INIT_LIST_HEAD(&p_hwfn->db_recovery_info.list);
227 	spin_lock_init(&p_hwfn->db_recovery_info.lock);
228 	p_hwfn->db_recovery_info.db_recovery_counter = 0;
229 
230 	return 0;
231 }
232 
233 /* Destroy the doorbell recovery mechanism */
qed_db_recovery_teardown(struct qed_hwfn * p_hwfn)234 static void qed_db_recovery_teardown(struct qed_hwfn *p_hwfn)
235 {
236 	struct qed_db_recovery_entry *db_entry = NULL;
237 
238 	DP_VERBOSE(p_hwfn, QED_MSG_SPQ, "Tearing down db recovery\n");
239 	if (!list_empty(&p_hwfn->db_recovery_info.list)) {
240 		DP_VERBOSE(p_hwfn,
241 			   QED_MSG_SPQ,
242 			   "Doorbell Recovery teardown found the doorbell recovery list was not empty (Expected in disorderly driver unload (e.g. recovery) otherwise this probably means some flow forgot to db_recovery_del). Prepare to purge doorbell recovery list...\n");
243 		while (!list_empty(&p_hwfn->db_recovery_info.list)) {
244 			db_entry =
245 			    list_first_entry(&p_hwfn->db_recovery_info.list,
246 					     struct qed_db_recovery_entry,
247 					     list_entry);
248 			qed_db_recovery_dp_entry(p_hwfn, db_entry, "Purging");
249 			list_del(&db_entry->list_entry);
250 			kfree(db_entry);
251 		}
252 	}
253 	p_hwfn->db_recovery_info.db_recovery_counter = 0;
254 }
255 
256 /* Print the content of the doorbell recovery mechanism */
qed_db_recovery_dp(struct qed_hwfn * p_hwfn)257 void qed_db_recovery_dp(struct qed_hwfn *p_hwfn)
258 {
259 	struct qed_db_recovery_entry *db_entry = NULL;
260 
261 	DP_NOTICE(p_hwfn,
262 		  "Displaying doorbell recovery database. Counter was %d\n",
263 		  p_hwfn->db_recovery_info.db_recovery_counter);
264 
265 	/* Protect the list */
266 	spin_lock_bh(&p_hwfn->db_recovery_info.lock);
267 	list_for_each_entry(db_entry,
268 			    &p_hwfn->db_recovery_info.list, list_entry) {
269 		qed_db_recovery_dp_entry(p_hwfn, db_entry, "Printing");
270 	}
271 
272 	spin_unlock_bh(&p_hwfn->db_recovery_info.lock);
273 }
274 
275 /* Ring the doorbell of a single doorbell recovery entry */
qed_db_recovery_ring(struct qed_hwfn * p_hwfn,struct qed_db_recovery_entry * db_entry)276 static void qed_db_recovery_ring(struct qed_hwfn *p_hwfn,
277 				 struct qed_db_recovery_entry *db_entry)
278 {
279 	/* Print according to width */
280 	if (db_entry->db_width == DB_REC_WIDTH_32B) {
281 		DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
282 			   "ringing doorbell address %p data %x\n",
283 			   db_entry->db_addr,
284 			   *(u32 *)db_entry->db_data);
285 	} else {
286 		DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
287 			   "ringing doorbell address %p data %llx\n",
288 			   db_entry->db_addr,
289 			   *(u64 *)(db_entry->db_data));
290 	}
291 
292 	/* Sanity */
293 	if (!qed_db_rec_sanity(p_hwfn->cdev, db_entry->db_addr,
294 			       db_entry->db_width, db_entry->db_data))
295 		return;
296 
297 	/* Flush the write combined buffer. Since there are multiple doorbelling
298 	 * entities using the same address, if we don't flush, a transaction
299 	 * could be lost.
300 	 */
301 	wmb();
302 
303 	/* Ring the doorbell */
304 	if (db_entry->db_width == DB_REC_WIDTH_32B)
305 		DIRECT_REG_WR(db_entry->db_addr,
306 			      *(u32 *)(db_entry->db_data));
307 	else
308 		DIRECT_REG_WR64(db_entry->db_addr,
309 				*(u64 *)(db_entry->db_data));
310 
311 	/* Flush the write combined buffer. Next doorbell may come from a
312 	 * different entity to the same address...
313 	 */
314 	wmb();
315 }
316 
317 /* Traverse the doorbell recovery entry list and ring all the doorbells */
qed_db_recovery_execute(struct qed_hwfn * p_hwfn)318 void qed_db_recovery_execute(struct qed_hwfn *p_hwfn)
319 {
320 	struct qed_db_recovery_entry *db_entry = NULL;
321 
322 	DP_NOTICE(p_hwfn, "Executing doorbell recovery. Counter was %d\n",
323 		  p_hwfn->db_recovery_info.db_recovery_counter);
324 
325 	/* Track amount of times recovery was executed */
326 	p_hwfn->db_recovery_info.db_recovery_counter++;
327 
328 	/* Protect the list */
329 	spin_lock_bh(&p_hwfn->db_recovery_info.lock);
330 	list_for_each_entry(db_entry,
331 			    &p_hwfn->db_recovery_info.list, list_entry)
332 		qed_db_recovery_ring(p_hwfn, db_entry);
333 	spin_unlock_bh(&p_hwfn->db_recovery_info.lock);
334 }
335 
336 /******************** Doorbell Recovery end ****************/
337 
338 /********************************** NIG LLH ***********************************/
339 
340 enum qed_llh_filter_type {
341 	QED_LLH_FILTER_TYPE_MAC,
342 	QED_LLH_FILTER_TYPE_PROTOCOL,
343 };
344 
345 struct qed_llh_mac_filter {
346 	u8 addr[ETH_ALEN];
347 };
348 
349 struct qed_llh_protocol_filter {
350 	enum qed_llh_prot_filter_type_t type;
351 	u16 source_port_or_eth_type;
352 	u16 dest_port;
353 };
354 
355 union qed_llh_filter {
356 	struct qed_llh_mac_filter mac;
357 	struct qed_llh_protocol_filter protocol;
358 };
359 
360 struct qed_llh_filter_info {
361 	bool b_enabled;
362 	u32 ref_cnt;
363 	enum qed_llh_filter_type type;
364 	union qed_llh_filter filter;
365 };
366 
367 struct qed_llh_info {
368 	/* Number of LLH filters banks */
369 	u8 num_ppfid;
370 
371 #define MAX_NUM_PPFID   8
372 	u8 ppfid_array[MAX_NUM_PPFID];
373 
374 	/* Array of filters arrays:
375 	 * "num_ppfid" elements of filters banks, where each is an array of
376 	 * "NIG_REG_LLH_FUNC_FILTER_EN_SIZE" filters.
377 	 */
378 	struct qed_llh_filter_info **pp_filters;
379 };
380 
qed_llh_free(struct qed_dev * cdev)381 static void qed_llh_free(struct qed_dev *cdev)
382 {
383 	struct qed_llh_info *p_llh_info = cdev->p_llh_info;
384 	u32 i;
385 
386 	if (p_llh_info) {
387 		if (p_llh_info->pp_filters)
388 			for (i = 0; i < p_llh_info->num_ppfid; i++)
389 				kfree(p_llh_info->pp_filters[i]);
390 
391 		kfree(p_llh_info->pp_filters);
392 	}
393 
394 	kfree(p_llh_info);
395 	cdev->p_llh_info = NULL;
396 }
397 
qed_llh_alloc(struct qed_dev * cdev)398 static int qed_llh_alloc(struct qed_dev *cdev)
399 {
400 	struct qed_llh_info *p_llh_info;
401 	u32 size, i;
402 
403 	p_llh_info = kzalloc(sizeof(*p_llh_info), GFP_KERNEL);
404 	if (!p_llh_info)
405 		return -ENOMEM;
406 	cdev->p_llh_info = p_llh_info;
407 
408 	for (i = 0; i < MAX_NUM_PPFID; i++) {
409 		if (!(cdev->ppfid_bitmap & (0x1 << i)))
410 			continue;
411 
412 		p_llh_info->ppfid_array[p_llh_info->num_ppfid] = i;
413 		DP_VERBOSE(cdev, QED_MSG_SP, "ppfid_array[%d] = %hhd\n",
414 			   p_llh_info->num_ppfid, i);
415 		p_llh_info->num_ppfid++;
416 	}
417 
418 	size = p_llh_info->num_ppfid * sizeof(*p_llh_info->pp_filters);
419 	p_llh_info->pp_filters = kzalloc(size, GFP_KERNEL);
420 	if (!p_llh_info->pp_filters)
421 		return -ENOMEM;
422 
423 	size = NIG_REG_LLH_FUNC_FILTER_EN_SIZE *
424 	    sizeof(**p_llh_info->pp_filters);
425 	for (i = 0; i < p_llh_info->num_ppfid; i++) {
426 		p_llh_info->pp_filters[i] = kzalloc(size, GFP_KERNEL);
427 		if (!p_llh_info->pp_filters[i])
428 			return -ENOMEM;
429 	}
430 
431 	return 0;
432 }
433 
qed_llh_shadow_sanity(struct qed_dev * cdev,u8 ppfid,u8 filter_idx,const char * action)434 static int qed_llh_shadow_sanity(struct qed_dev *cdev,
435 				 u8 ppfid, u8 filter_idx, const char *action)
436 {
437 	struct qed_llh_info *p_llh_info = cdev->p_llh_info;
438 
439 	if (ppfid >= p_llh_info->num_ppfid) {
440 		DP_NOTICE(cdev,
441 			  "LLH shadow [%s]: using ppfid %d while only %d ppfids are available\n",
442 			  action, ppfid, p_llh_info->num_ppfid);
443 		return -EINVAL;
444 	}
445 
446 	if (filter_idx >= NIG_REG_LLH_FUNC_FILTER_EN_SIZE) {
447 		DP_NOTICE(cdev,
448 			  "LLH shadow [%s]: using filter_idx %d while only %d filters are available\n",
449 			  action, filter_idx, NIG_REG_LLH_FUNC_FILTER_EN_SIZE);
450 		return -EINVAL;
451 	}
452 
453 	return 0;
454 }
455 
456 #define QED_LLH_INVALID_FILTER_IDX      0xff
457 
458 static int
qed_llh_shadow_search_filter(struct qed_dev * cdev,u8 ppfid,union qed_llh_filter * p_filter,u8 * p_filter_idx)459 qed_llh_shadow_search_filter(struct qed_dev *cdev,
460 			     u8 ppfid,
461 			     union qed_llh_filter *p_filter, u8 *p_filter_idx)
462 {
463 	struct qed_llh_info *p_llh_info = cdev->p_llh_info;
464 	struct qed_llh_filter_info *p_filters;
465 	int rc;
466 	u8 i;
467 
468 	rc = qed_llh_shadow_sanity(cdev, ppfid, 0, "search");
469 	if (rc)
470 		return rc;
471 
472 	*p_filter_idx = QED_LLH_INVALID_FILTER_IDX;
473 
474 	p_filters = p_llh_info->pp_filters[ppfid];
475 	for (i = 0; i < NIG_REG_LLH_FUNC_FILTER_EN_SIZE; i++) {
476 		if (!memcmp(p_filter, &p_filters[i].filter,
477 			    sizeof(*p_filter))) {
478 			*p_filter_idx = i;
479 			break;
480 		}
481 	}
482 
483 	return 0;
484 }
485 
486 static int
qed_llh_shadow_get_free_idx(struct qed_dev * cdev,u8 ppfid,u8 * p_filter_idx)487 qed_llh_shadow_get_free_idx(struct qed_dev *cdev, u8 ppfid, u8 *p_filter_idx)
488 {
489 	struct qed_llh_info *p_llh_info = cdev->p_llh_info;
490 	struct qed_llh_filter_info *p_filters;
491 	int rc;
492 	u8 i;
493 
494 	rc = qed_llh_shadow_sanity(cdev, ppfid, 0, "get_free_idx");
495 	if (rc)
496 		return rc;
497 
498 	*p_filter_idx = QED_LLH_INVALID_FILTER_IDX;
499 
500 	p_filters = p_llh_info->pp_filters[ppfid];
501 	for (i = 0; i < NIG_REG_LLH_FUNC_FILTER_EN_SIZE; i++) {
502 		if (!p_filters[i].b_enabled) {
503 			*p_filter_idx = i;
504 			break;
505 		}
506 	}
507 
508 	return 0;
509 }
510 
511 static int
__qed_llh_shadow_add_filter(struct qed_dev * cdev,u8 ppfid,u8 filter_idx,enum qed_llh_filter_type type,union qed_llh_filter * p_filter,u32 * p_ref_cnt)512 __qed_llh_shadow_add_filter(struct qed_dev *cdev,
513 			    u8 ppfid,
514 			    u8 filter_idx,
515 			    enum qed_llh_filter_type type,
516 			    union qed_llh_filter *p_filter, u32 *p_ref_cnt)
517 {
518 	struct qed_llh_info *p_llh_info = cdev->p_llh_info;
519 	struct qed_llh_filter_info *p_filters;
520 	int rc;
521 
522 	rc = qed_llh_shadow_sanity(cdev, ppfid, filter_idx, "add");
523 	if (rc)
524 		return rc;
525 
526 	p_filters = p_llh_info->pp_filters[ppfid];
527 	if (!p_filters[filter_idx].ref_cnt) {
528 		p_filters[filter_idx].b_enabled = true;
529 		p_filters[filter_idx].type = type;
530 		memcpy(&p_filters[filter_idx].filter, p_filter,
531 		       sizeof(p_filters[filter_idx].filter));
532 	}
533 
534 	*p_ref_cnt = ++p_filters[filter_idx].ref_cnt;
535 
536 	return 0;
537 }
538 
539 static int
qed_llh_shadow_add_filter(struct qed_dev * cdev,u8 ppfid,enum qed_llh_filter_type type,union qed_llh_filter * p_filter,u8 * p_filter_idx,u32 * p_ref_cnt)540 qed_llh_shadow_add_filter(struct qed_dev *cdev,
541 			  u8 ppfid,
542 			  enum qed_llh_filter_type type,
543 			  union qed_llh_filter *p_filter,
544 			  u8 *p_filter_idx, u32 *p_ref_cnt)
545 {
546 	int rc;
547 
548 	/* Check if the same filter already exist */
549 	rc = qed_llh_shadow_search_filter(cdev, ppfid, p_filter, p_filter_idx);
550 	if (rc)
551 		return rc;
552 
553 	/* Find a new entry in case of a new filter */
554 	if (*p_filter_idx == QED_LLH_INVALID_FILTER_IDX) {
555 		rc = qed_llh_shadow_get_free_idx(cdev, ppfid, p_filter_idx);
556 		if (rc)
557 			return rc;
558 	}
559 
560 	/* No free entry was found */
561 	if (*p_filter_idx == QED_LLH_INVALID_FILTER_IDX) {
562 		DP_NOTICE(cdev,
563 			  "Failed to find an empty LLH filter to utilize [ppfid %d]\n",
564 			  ppfid);
565 		return -EINVAL;
566 	}
567 
568 	return __qed_llh_shadow_add_filter(cdev, ppfid, *p_filter_idx, type,
569 					   p_filter, p_ref_cnt);
570 }
571 
572 static int
__qed_llh_shadow_remove_filter(struct qed_dev * cdev,u8 ppfid,u8 filter_idx,u32 * p_ref_cnt)573 __qed_llh_shadow_remove_filter(struct qed_dev *cdev,
574 			       u8 ppfid, u8 filter_idx, u32 *p_ref_cnt)
575 {
576 	struct qed_llh_info *p_llh_info = cdev->p_llh_info;
577 	struct qed_llh_filter_info *p_filters;
578 	int rc;
579 
580 	rc = qed_llh_shadow_sanity(cdev, ppfid, filter_idx, "remove");
581 	if (rc)
582 		return rc;
583 
584 	p_filters = p_llh_info->pp_filters[ppfid];
585 	if (!p_filters[filter_idx].ref_cnt) {
586 		DP_NOTICE(cdev,
587 			  "LLH shadow: trying to remove a filter with ref_cnt=0\n");
588 		return -EINVAL;
589 	}
590 
591 	*p_ref_cnt = --p_filters[filter_idx].ref_cnt;
592 	if (!p_filters[filter_idx].ref_cnt)
593 		memset(&p_filters[filter_idx],
594 		       0, sizeof(p_filters[filter_idx]));
595 
596 	return 0;
597 }
598 
599 static int
qed_llh_shadow_remove_filter(struct qed_dev * cdev,u8 ppfid,union qed_llh_filter * p_filter,u8 * p_filter_idx,u32 * p_ref_cnt)600 qed_llh_shadow_remove_filter(struct qed_dev *cdev,
601 			     u8 ppfid,
602 			     union qed_llh_filter *p_filter,
603 			     u8 *p_filter_idx, u32 *p_ref_cnt)
604 {
605 	int rc;
606 
607 	rc = qed_llh_shadow_search_filter(cdev, ppfid, p_filter, p_filter_idx);
608 	if (rc)
609 		return rc;
610 
611 	/* No matching filter was found */
612 	if (*p_filter_idx == QED_LLH_INVALID_FILTER_IDX) {
613 		DP_NOTICE(cdev, "Failed to find a filter in the LLH shadow\n");
614 		return -EINVAL;
615 	}
616 
617 	return __qed_llh_shadow_remove_filter(cdev, ppfid, *p_filter_idx,
618 					      p_ref_cnt);
619 }
620 
qed_llh_abs_ppfid(struct qed_dev * cdev,u8 ppfid,u8 * p_abs_ppfid)621 static int qed_llh_abs_ppfid(struct qed_dev *cdev, u8 ppfid, u8 *p_abs_ppfid)
622 {
623 	struct qed_llh_info *p_llh_info = cdev->p_llh_info;
624 
625 	if (ppfid >= p_llh_info->num_ppfid) {
626 		DP_NOTICE(cdev,
627 			  "ppfid %d is not valid, available indices are 0..%hhd\n",
628 			  ppfid, p_llh_info->num_ppfid - 1);
629 		*p_abs_ppfid = 0;
630 		return -EINVAL;
631 	}
632 
633 	*p_abs_ppfid = p_llh_info->ppfid_array[ppfid];
634 
635 	return 0;
636 }
637 
638 static int
qed_llh_set_engine_affin(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)639 qed_llh_set_engine_affin(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
640 {
641 	struct qed_dev *cdev = p_hwfn->cdev;
642 	enum qed_eng eng;
643 	u8 ppfid;
644 	int rc;
645 
646 	rc = qed_mcp_get_engine_config(p_hwfn, p_ptt);
647 	if (rc != 0 && rc != -EOPNOTSUPP) {
648 		DP_NOTICE(p_hwfn,
649 			  "Failed to get the engine affinity configuration\n");
650 		return rc;
651 	}
652 
653 	/* RoCE PF is bound to a single engine */
654 	if (QED_IS_ROCE_PERSONALITY(p_hwfn)) {
655 		eng = cdev->fir_affin ? QED_ENG1 : QED_ENG0;
656 		rc = qed_llh_set_roce_affinity(cdev, eng);
657 		if (rc) {
658 			DP_NOTICE(cdev,
659 				  "Failed to set the RoCE engine affinity\n");
660 			return rc;
661 		}
662 
663 		DP_VERBOSE(cdev,
664 			   QED_MSG_SP,
665 			   "LLH: Set the engine affinity of RoCE packets as %d\n",
666 			   eng);
667 	}
668 
669 	/* Storage PF is bound to a single engine while L2 PF uses both */
670 	if (QED_IS_FCOE_PERSONALITY(p_hwfn) || QED_IS_ISCSI_PERSONALITY(p_hwfn))
671 		eng = cdev->fir_affin ? QED_ENG1 : QED_ENG0;
672 	else			/* L2_PERSONALITY */
673 		eng = QED_BOTH_ENG;
674 
675 	for (ppfid = 0; ppfid < cdev->p_llh_info->num_ppfid; ppfid++) {
676 		rc = qed_llh_set_ppfid_affinity(cdev, ppfid, eng);
677 		if (rc) {
678 			DP_NOTICE(cdev,
679 				  "Failed to set the engine affinity of ppfid %d\n",
680 				  ppfid);
681 			return rc;
682 		}
683 	}
684 
685 	DP_VERBOSE(cdev, QED_MSG_SP,
686 		   "LLH: Set the engine affinity of non-RoCE packets as %d\n",
687 		   eng);
688 
689 	return 0;
690 }
691 
qed_llh_hw_init_pf(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)692 static int qed_llh_hw_init_pf(struct qed_hwfn *p_hwfn,
693 			      struct qed_ptt *p_ptt)
694 {
695 	struct qed_dev *cdev = p_hwfn->cdev;
696 	u8 ppfid, abs_ppfid;
697 	int rc;
698 
699 	for (ppfid = 0; ppfid < cdev->p_llh_info->num_ppfid; ppfid++) {
700 		u32 addr;
701 
702 		rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
703 		if (rc)
704 			return rc;
705 
706 		addr = NIG_REG_LLH_PPFID2PFID_TBL_0 + abs_ppfid * 0x4;
707 		qed_wr(p_hwfn, p_ptt, addr, p_hwfn->rel_pf_id);
708 	}
709 
710 	if (test_bit(QED_MF_LLH_MAC_CLSS, &cdev->mf_bits) &&
711 	    !QED_IS_FCOE_PERSONALITY(p_hwfn)) {
712 		rc = qed_llh_add_mac_filter(cdev, 0,
713 					    p_hwfn->hw_info.hw_mac_addr);
714 		if (rc)
715 			DP_NOTICE(cdev,
716 				  "Failed to add an LLH filter with the primary MAC\n");
717 	}
718 
719 	if (QED_IS_CMT(cdev)) {
720 		rc = qed_llh_set_engine_affin(p_hwfn, p_ptt);
721 		if (rc)
722 			return rc;
723 	}
724 
725 	return 0;
726 }
727 
qed_llh_get_num_ppfid(struct qed_dev * cdev)728 u8 qed_llh_get_num_ppfid(struct qed_dev *cdev)
729 {
730 	return cdev->p_llh_info->num_ppfid;
731 }
732 
733 #define NIG_REG_PPF_TO_ENGINE_SEL_ROCE_MASK             0x3
734 #define NIG_REG_PPF_TO_ENGINE_SEL_ROCE_SHIFT            0
735 #define NIG_REG_PPF_TO_ENGINE_SEL_NON_ROCE_MASK         0x3
736 #define NIG_REG_PPF_TO_ENGINE_SEL_NON_ROCE_SHIFT        2
737 
qed_llh_set_ppfid_affinity(struct qed_dev * cdev,u8 ppfid,enum qed_eng eng)738 int qed_llh_set_ppfid_affinity(struct qed_dev *cdev, u8 ppfid, enum qed_eng eng)
739 {
740 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
741 	struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
742 	u32 addr, val, eng_sel;
743 	u8 abs_ppfid;
744 	int rc = 0;
745 
746 	if (!p_ptt)
747 		return -EAGAIN;
748 
749 	if (!QED_IS_CMT(cdev))
750 		goto out;
751 
752 	rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
753 	if (rc)
754 		goto out;
755 
756 	switch (eng) {
757 	case QED_ENG0:
758 		eng_sel = 0;
759 		break;
760 	case QED_ENG1:
761 		eng_sel = 1;
762 		break;
763 	case QED_BOTH_ENG:
764 		eng_sel = 2;
765 		break;
766 	default:
767 		DP_NOTICE(cdev, "Invalid affinity value for ppfid [%d]\n", eng);
768 		rc = -EINVAL;
769 		goto out;
770 	}
771 
772 	addr = NIG_REG_PPF_TO_ENGINE_SEL + abs_ppfid * 0x4;
773 	val = qed_rd(p_hwfn, p_ptt, addr);
774 	SET_FIELD(val, NIG_REG_PPF_TO_ENGINE_SEL_NON_ROCE, eng_sel);
775 	qed_wr(p_hwfn, p_ptt, addr, val);
776 
777 	/* The iWARP affinity is set as the affinity of ppfid 0 */
778 	if (!ppfid && QED_IS_IWARP_PERSONALITY(p_hwfn))
779 		cdev->iwarp_affin = (eng == QED_ENG1) ? 1 : 0;
780 out:
781 	qed_ptt_release(p_hwfn, p_ptt);
782 
783 	return rc;
784 }
785 
qed_llh_set_roce_affinity(struct qed_dev * cdev,enum qed_eng eng)786 int qed_llh_set_roce_affinity(struct qed_dev *cdev, enum qed_eng eng)
787 {
788 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
789 	struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
790 	u32 addr, val, eng_sel;
791 	u8 ppfid, abs_ppfid;
792 	int rc = 0;
793 
794 	if (!p_ptt)
795 		return -EAGAIN;
796 
797 	if (!QED_IS_CMT(cdev))
798 		goto out;
799 
800 	switch (eng) {
801 	case QED_ENG0:
802 		eng_sel = 0;
803 		break;
804 	case QED_ENG1:
805 		eng_sel = 1;
806 		break;
807 	case QED_BOTH_ENG:
808 		eng_sel = 2;
809 		qed_wr(p_hwfn, p_ptt, NIG_REG_LLH_ENG_CLS_ROCE_QP_SEL,
810 		       0xf);  /* QP bit 15 */
811 		break;
812 	default:
813 		DP_NOTICE(cdev, "Invalid affinity value for RoCE [%d]\n", eng);
814 		rc = -EINVAL;
815 		goto out;
816 	}
817 
818 	for (ppfid = 0; ppfid < cdev->p_llh_info->num_ppfid; ppfid++) {
819 		rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
820 		if (rc)
821 			goto out;
822 
823 		addr = NIG_REG_PPF_TO_ENGINE_SEL + abs_ppfid * 0x4;
824 		val = qed_rd(p_hwfn, p_ptt, addr);
825 		SET_FIELD(val, NIG_REG_PPF_TO_ENGINE_SEL_ROCE, eng_sel);
826 		qed_wr(p_hwfn, p_ptt, addr, val);
827 	}
828 out:
829 	qed_ptt_release(p_hwfn, p_ptt);
830 
831 	return rc;
832 }
833 
834 struct qed_llh_filter_details {
835 	u64 value;
836 	u32 mode;
837 	u32 protocol_type;
838 	u32 hdr_sel;
839 	u32 enable;
840 };
841 
842 static int
qed_llh_access_filter(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u8 abs_ppfid,u8 filter_idx,struct qed_llh_filter_details * p_details)843 qed_llh_access_filter(struct qed_hwfn *p_hwfn,
844 		      struct qed_ptt *p_ptt,
845 		      u8 abs_ppfid,
846 		      u8 filter_idx,
847 		      struct qed_llh_filter_details *p_details)
848 {
849 	struct qed_dmae_params params = {0};
850 	u32 addr;
851 	u8 pfid;
852 	int rc;
853 
854 	/* The NIG/LLH registers that are accessed in this function have only 16
855 	 * rows which are exposed to a PF. I.e. only the 16 filters of its
856 	 * default ppfid. Accessing filters of other ppfids requires pretending
857 	 * to another PFs.
858 	 * The calculation of PPFID->PFID in AH is based on the relative index
859 	 * of a PF on its port.
860 	 * For BB the pfid is actually the abs_ppfid.
861 	 */
862 	if (QED_IS_BB(p_hwfn->cdev))
863 		pfid = abs_ppfid;
864 	else
865 		pfid = abs_ppfid * p_hwfn->cdev->num_ports_in_engine +
866 		    MFW_PORT(p_hwfn);
867 
868 	/* Filter enable - should be done first when removing a filter */
869 	if (!p_details->enable) {
870 		qed_fid_pretend(p_hwfn, p_ptt,
871 				pfid << PXP_PRETEND_CONCRETE_FID_PFID_SHIFT);
872 
873 		addr = NIG_REG_LLH_FUNC_FILTER_EN + filter_idx * 0x4;
874 		qed_wr(p_hwfn, p_ptt, addr, p_details->enable);
875 
876 		qed_fid_pretend(p_hwfn, p_ptt,
877 				p_hwfn->rel_pf_id <<
878 				PXP_PRETEND_CONCRETE_FID_PFID_SHIFT);
879 	}
880 
881 	/* Filter value */
882 	addr = NIG_REG_LLH_FUNC_FILTER_VALUE + 2 * filter_idx * 0x4;
883 
884 	SET_FIELD(params.flags, QED_DMAE_PARAMS_DST_PF_VALID, 0x1);
885 	params.dst_pfid = pfid;
886 	rc = qed_dmae_host2grc(p_hwfn,
887 			       p_ptt,
888 			       (u64)(uintptr_t)&p_details->value,
889 			       addr, 2 /* size_in_dwords */,
890 			       &params);
891 	if (rc)
892 		return rc;
893 
894 	qed_fid_pretend(p_hwfn, p_ptt,
895 			pfid << PXP_PRETEND_CONCRETE_FID_PFID_SHIFT);
896 
897 	/* Filter mode */
898 	addr = NIG_REG_LLH_FUNC_FILTER_MODE + filter_idx * 0x4;
899 	qed_wr(p_hwfn, p_ptt, addr, p_details->mode);
900 
901 	/* Filter protocol type */
902 	addr = NIG_REG_LLH_FUNC_FILTER_PROTOCOL_TYPE + filter_idx * 0x4;
903 	qed_wr(p_hwfn, p_ptt, addr, p_details->protocol_type);
904 
905 	/* Filter header select */
906 	addr = NIG_REG_LLH_FUNC_FILTER_HDR_SEL + filter_idx * 0x4;
907 	qed_wr(p_hwfn, p_ptt, addr, p_details->hdr_sel);
908 
909 	/* Filter enable - should be done last when adding a filter */
910 	if (p_details->enable) {
911 		addr = NIG_REG_LLH_FUNC_FILTER_EN + filter_idx * 0x4;
912 		qed_wr(p_hwfn, p_ptt, addr, p_details->enable);
913 	}
914 
915 	qed_fid_pretend(p_hwfn, p_ptt,
916 			p_hwfn->rel_pf_id <<
917 			PXP_PRETEND_CONCRETE_FID_PFID_SHIFT);
918 
919 	return 0;
920 }
921 
922 static int
qed_llh_add_filter(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u8 abs_ppfid,u8 filter_idx,u8 filter_prot_type,u32 high,u32 low)923 qed_llh_add_filter(struct qed_hwfn *p_hwfn,
924 		   struct qed_ptt *p_ptt,
925 		   u8 abs_ppfid,
926 		   u8 filter_idx, u8 filter_prot_type, u32 high, u32 low)
927 {
928 	struct qed_llh_filter_details filter_details;
929 
930 	filter_details.enable = 1;
931 	filter_details.value = ((u64)high << 32) | low;
932 	filter_details.hdr_sel = 0;
933 	filter_details.protocol_type = filter_prot_type;
934 	/* Mode: 0: MAC-address classification 1: protocol classification */
935 	filter_details.mode = filter_prot_type ? 1 : 0;
936 
937 	return qed_llh_access_filter(p_hwfn, p_ptt, abs_ppfid, filter_idx,
938 				     &filter_details);
939 }
940 
941 static int
qed_llh_remove_filter(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u8 abs_ppfid,u8 filter_idx)942 qed_llh_remove_filter(struct qed_hwfn *p_hwfn,
943 		      struct qed_ptt *p_ptt, u8 abs_ppfid, u8 filter_idx)
944 {
945 	struct qed_llh_filter_details filter_details = {0};
946 
947 	return qed_llh_access_filter(p_hwfn, p_ptt, abs_ppfid, filter_idx,
948 				     &filter_details);
949 }
950 
qed_llh_add_mac_filter(struct qed_dev * cdev,u8 ppfid,u8 mac_addr[ETH_ALEN])951 int qed_llh_add_mac_filter(struct qed_dev *cdev,
952 			   u8 ppfid, u8 mac_addr[ETH_ALEN])
953 {
954 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
955 	struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
956 	union qed_llh_filter filter = {};
957 	u8 filter_idx, abs_ppfid = 0;
958 	u32 high, low, ref_cnt;
959 	int rc = 0;
960 
961 	if (!p_ptt)
962 		return -EAGAIN;
963 
964 	if (!test_bit(QED_MF_LLH_MAC_CLSS, &cdev->mf_bits))
965 		goto out;
966 
967 	memcpy(filter.mac.addr, mac_addr, ETH_ALEN);
968 	rc = qed_llh_shadow_add_filter(cdev, ppfid,
969 				       QED_LLH_FILTER_TYPE_MAC,
970 				       &filter, &filter_idx, &ref_cnt);
971 	if (rc)
972 		goto err;
973 
974 	/* Configure the LLH only in case of a new the filter */
975 	if (ref_cnt == 1) {
976 		rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
977 		if (rc)
978 			goto err;
979 
980 		high = mac_addr[1] | (mac_addr[0] << 8);
981 		low = mac_addr[5] | (mac_addr[4] << 8) | (mac_addr[3] << 16) |
982 		      (mac_addr[2] << 24);
983 		rc = qed_llh_add_filter(p_hwfn, p_ptt, abs_ppfid, filter_idx,
984 					0, high, low);
985 		if (rc)
986 			goto err;
987 	}
988 
989 	DP_VERBOSE(cdev,
990 		   QED_MSG_SP,
991 		   "LLH: Added MAC filter [%pM] to ppfid %hhd [abs %hhd] at idx %hhd [ref_cnt %d]\n",
992 		   mac_addr, ppfid, abs_ppfid, filter_idx, ref_cnt);
993 
994 	goto out;
995 
996 err:	DP_NOTICE(cdev,
997 		  "LLH: Failed to add MAC filter [%pM] to ppfid %hhd\n",
998 		  mac_addr, ppfid);
999 out:
1000 	qed_ptt_release(p_hwfn, p_ptt);
1001 
1002 	return rc;
1003 }
1004 
1005 static int
qed_llh_protocol_filter_stringify(struct qed_dev * cdev,enum qed_llh_prot_filter_type_t type,u16 source_port_or_eth_type,u16 dest_port,u8 * str,size_t str_len)1006 qed_llh_protocol_filter_stringify(struct qed_dev *cdev,
1007 				  enum qed_llh_prot_filter_type_t type,
1008 				  u16 source_port_or_eth_type,
1009 				  u16 dest_port, u8 *str, size_t str_len)
1010 {
1011 	switch (type) {
1012 	case QED_LLH_FILTER_ETHERTYPE:
1013 		snprintf(str, str_len, "Ethertype 0x%04x",
1014 			 source_port_or_eth_type);
1015 		break;
1016 	case QED_LLH_FILTER_TCP_SRC_PORT:
1017 		snprintf(str, str_len, "TCP src port 0x%04x",
1018 			 source_port_or_eth_type);
1019 		break;
1020 	case QED_LLH_FILTER_UDP_SRC_PORT:
1021 		snprintf(str, str_len, "UDP src port 0x%04x",
1022 			 source_port_or_eth_type);
1023 		break;
1024 	case QED_LLH_FILTER_TCP_DEST_PORT:
1025 		snprintf(str, str_len, "TCP dst port 0x%04x", dest_port);
1026 		break;
1027 	case QED_LLH_FILTER_UDP_DEST_PORT:
1028 		snprintf(str, str_len, "UDP dst port 0x%04x", dest_port);
1029 		break;
1030 	case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
1031 		snprintf(str, str_len, "TCP src/dst ports 0x%04x/0x%04x",
1032 			 source_port_or_eth_type, dest_port);
1033 		break;
1034 	case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
1035 		snprintf(str, str_len, "UDP src/dst ports 0x%04x/0x%04x",
1036 			 source_port_or_eth_type, dest_port);
1037 		break;
1038 	default:
1039 		DP_NOTICE(cdev,
1040 			  "Non valid LLH protocol filter type %d\n", type);
1041 		return -EINVAL;
1042 	}
1043 
1044 	return 0;
1045 }
1046 
1047 static int
qed_llh_protocol_filter_to_hilo(struct qed_dev * cdev,enum qed_llh_prot_filter_type_t type,u16 source_port_or_eth_type,u16 dest_port,u32 * p_high,u32 * p_low)1048 qed_llh_protocol_filter_to_hilo(struct qed_dev *cdev,
1049 				enum qed_llh_prot_filter_type_t type,
1050 				u16 source_port_or_eth_type,
1051 				u16 dest_port, u32 *p_high, u32 *p_low)
1052 {
1053 	*p_high = 0;
1054 	*p_low = 0;
1055 
1056 	switch (type) {
1057 	case QED_LLH_FILTER_ETHERTYPE:
1058 		*p_high = source_port_or_eth_type;
1059 		break;
1060 	case QED_LLH_FILTER_TCP_SRC_PORT:
1061 	case QED_LLH_FILTER_UDP_SRC_PORT:
1062 		*p_low = source_port_or_eth_type << 16;
1063 		break;
1064 	case QED_LLH_FILTER_TCP_DEST_PORT:
1065 	case QED_LLH_FILTER_UDP_DEST_PORT:
1066 		*p_low = dest_port;
1067 		break;
1068 	case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
1069 	case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
1070 		*p_low = (source_port_or_eth_type << 16) | dest_port;
1071 		break;
1072 	default:
1073 		DP_NOTICE(cdev,
1074 			  "Non valid LLH protocol filter type %d\n", type);
1075 		return -EINVAL;
1076 	}
1077 
1078 	return 0;
1079 }
1080 
1081 int
qed_llh_add_protocol_filter(struct qed_dev * cdev,u8 ppfid,enum qed_llh_prot_filter_type_t type,u16 source_port_or_eth_type,u16 dest_port)1082 qed_llh_add_protocol_filter(struct qed_dev *cdev,
1083 			    u8 ppfid,
1084 			    enum qed_llh_prot_filter_type_t type,
1085 			    u16 source_port_or_eth_type, u16 dest_port)
1086 {
1087 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
1088 	struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
1089 	u8 filter_idx, abs_ppfid, str[32], type_bitmap;
1090 	union qed_llh_filter filter = {};
1091 	u32 high, low, ref_cnt;
1092 	int rc = 0;
1093 
1094 	if (!p_ptt)
1095 		return -EAGAIN;
1096 
1097 	if (!test_bit(QED_MF_LLH_PROTO_CLSS, &cdev->mf_bits))
1098 		goto out;
1099 
1100 	rc = qed_llh_protocol_filter_stringify(cdev, type,
1101 					       source_port_or_eth_type,
1102 					       dest_port, str, sizeof(str));
1103 	if (rc)
1104 		goto err;
1105 
1106 	filter.protocol.type = type;
1107 	filter.protocol.source_port_or_eth_type = source_port_or_eth_type;
1108 	filter.protocol.dest_port = dest_port;
1109 	rc = qed_llh_shadow_add_filter(cdev,
1110 				       ppfid,
1111 				       QED_LLH_FILTER_TYPE_PROTOCOL,
1112 				       &filter, &filter_idx, &ref_cnt);
1113 	if (rc)
1114 		goto err;
1115 
1116 	rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
1117 	if (rc)
1118 		goto err;
1119 
1120 	/* Configure the LLH only in case of a new the filter */
1121 	if (ref_cnt == 1) {
1122 		rc = qed_llh_protocol_filter_to_hilo(cdev, type,
1123 						     source_port_or_eth_type,
1124 						     dest_port, &high, &low);
1125 		if (rc)
1126 			goto err;
1127 
1128 		type_bitmap = 0x1 << type;
1129 		rc = qed_llh_add_filter(p_hwfn, p_ptt, abs_ppfid,
1130 					filter_idx, type_bitmap, high, low);
1131 		if (rc)
1132 			goto err;
1133 	}
1134 
1135 	DP_VERBOSE(cdev,
1136 		   QED_MSG_SP,
1137 		   "LLH: Added protocol filter [%s] to ppfid %hhd [abs %hhd] at idx %hhd [ref_cnt %d]\n",
1138 		   str, ppfid, abs_ppfid, filter_idx, ref_cnt);
1139 
1140 	goto out;
1141 
1142 err:	DP_NOTICE(p_hwfn,
1143 		  "LLH: Failed to add protocol filter [%s] to ppfid %hhd\n",
1144 		  str, ppfid);
1145 out:
1146 	qed_ptt_release(p_hwfn, p_ptt);
1147 
1148 	return rc;
1149 }
1150 
qed_llh_remove_mac_filter(struct qed_dev * cdev,u8 ppfid,u8 mac_addr[ETH_ALEN])1151 void qed_llh_remove_mac_filter(struct qed_dev *cdev,
1152 			       u8 ppfid, u8 mac_addr[ETH_ALEN])
1153 {
1154 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
1155 	struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
1156 	union qed_llh_filter filter = {};
1157 	u8 filter_idx, abs_ppfid;
1158 	int rc = 0;
1159 	u32 ref_cnt;
1160 
1161 	if (!p_ptt)
1162 		return;
1163 
1164 	if (!test_bit(QED_MF_LLH_MAC_CLSS, &cdev->mf_bits))
1165 		goto out;
1166 
1167 	ether_addr_copy(filter.mac.addr, mac_addr);
1168 	rc = qed_llh_shadow_remove_filter(cdev, ppfid, &filter, &filter_idx,
1169 					  &ref_cnt);
1170 	if (rc)
1171 		goto err;
1172 
1173 	rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
1174 	if (rc)
1175 		goto err;
1176 
1177 	/* Remove from the LLH in case the filter is not in use */
1178 	if (!ref_cnt) {
1179 		rc = qed_llh_remove_filter(p_hwfn, p_ptt, abs_ppfid,
1180 					   filter_idx);
1181 		if (rc)
1182 			goto err;
1183 	}
1184 
1185 	DP_VERBOSE(cdev,
1186 		   QED_MSG_SP,
1187 		   "LLH: Removed MAC filter [%pM] from ppfid %hhd [abs %hhd] at idx %hhd [ref_cnt %d]\n",
1188 		   mac_addr, ppfid, abs_ppfid, filter_idx, ref_cnt);
1189 
1190 	goto out;
1191 
1192 err:	DP_NOTICE(cdev,
1193 		  "LLH: Failed to remove MAC filter [%pM] from ppfid %hhd\n",
1194 		  mac_addr, ppfid);
1195 out:
1196 	qed_ptt_release(p_hwfn, p_ptt);
1197 }
1198 
qed_llh_remove_protocol_filter(struct qed_dev * cdev,u8 ppfid,enum qed_llh_prot_filter_type_t type,u16 source_port_or_eth_type,u16 dest_port)1199 void qed_llh_remove_protocol_filter(struct qed_dev *cdev,
1200 				    u8 ppfid,
1201 				    enum qed_llh_prot_filter_type_t type,
1202 				    u16 source_port_or_eth_type, u16 dest_port)
1203 {
1204 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
1205 	struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
1206 	u8 filter_idx, abs_ppfid, str[32];
1207 	union qed_llh_filter filter = {};
1208 	int rc = 0;
1209 	u32 ref_cnt;
1210 
1211 	if (!p_ptt)
1212 		return;
1213 
1214 	if (!test_bit(QED_MF_LLH_PROTO_CLSS, &cdev->mf_bits))
1215 		goto out;
1216 
1217 	rc = qed_llh_protocol_filter_stringify(cdev, type,
1218 					       source_port_or_eth_type,
1219 					       dest_port, str, sizeof(str));
1220 	if (rc)
1221 		goto err;
1222 
1223 	filter.protocol.type = type;
1224 	filter.protocol.source_port_or_eth_type = source_port_or_eth_type;
1225 	filter.protocol.dest_port = dest_port;
1226 	rc = qed_llh_shadow_remove_filter(cdev, ppfid, &filter, &filter_idx,
1227 					  &ref_cnt);
1228 	if (rc)
1229 		goto err;
1230 
1231 	rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
1232 	if (rc)
1233 		goto err;
1234 
1235 	/* Remove from the LLH in case the filter is not in use */
1236 	if (!ref_cnt) {
1237 		rc = qed_llh_remove_filter(p_hwfn, p_ptt, abs_ppfid,
1238 					   filter_idx);
1239 		if (rc)
1240 			goto err;
1241 	}
1242 
1243 	DP_VERBOSE(cdev,
1244 		   QED_MSG_SP,
1245 		   "LLH: Removed protocol filter [%s] from ppfid %hhd [abs %hhd] at idx %hhd [ref_cnt %d]\n",
1246 		   str, ppfid, abs_ppfid, filter_idx, ref_cnt);
1247 
1248 	goto out;
1249 
1250 err:	DP_NOTICE(cdev,
1251 		  "LLH: Failed to remove protocol filter [%s] from ppfid %hhd\n",
1252 		  str, ppfid);
1253 out:
1254 	qed_ptt_release(p_hwfn, p_ptt);
1255 }
1256 
1257 /******************************* NIG LLH - End ********************************/
1258 
1259 #define QED_MIN_DPIS            (4)
1260 #define QED_MIN_PWM_REGION      (QED_WID_SIZE * QED_MIN_DPIS)
1261 
qed_hw_bar_size(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,enum BAR_ID bar_id)1262 static u32 qed_hw_bar_size(struct qed_hwfn *p_hwfn,
1263 			   struct qed_ptt *p_ptt, enum BAR_ID bar_id)
1264 {
1265 	u32 bar_reg = (bar_id == BAR_ID_0 ?
1266 		       PGLUE_B_REG_PF_BAR0_SIZE : PGLUE_B_REG_PF_BAR1_SIZE);
1267 	u32 val;
1268 
1269 	if (IS_VF(p_hwfn->cdev))
1270 		return qed_vf_hw_bar_size(p_hwfn, bar_id);
1271 
1272 	val = qed_rd(p_hwfn, p_ptt, bar_reg);
1273 	if (val)
1274 		return 1 << (val + 15);
1275 
1276 	/* Old MFW initialized above registered only conditionally */
1277 	if (p_hwfn->cdev->num_hwfns > 1) {
1278 		DP_INFO(p_hwfn,
1279 			"BAR size not configured. Assuming BAR size of 256kB for GRC and 512kB for DB\n");
1280 			return BAR_ID_0 ? 256 * 1024 : 512 * 1024;
1281 	} else {
1282 		DP_INFO(p_hwfn,
1283 			"BAR size not configured. Assuming BAR size of 512kB for GRC and 512kB for DB\n");
1284 			return 512 * 1024;
1285 	}
1286 }
1287 
qed_init_dp(struct qed_dev * cdev,u32 dp_module,u8 dp_level)1288 void qed_init_dp(struct qed_dev *cdev, u32 dp_module, u8 dp_level)
1289 {
1290 	u32 i;
1291 
1292 	cdev->dp_level = dp_level;
1293 	cdev->dp_module = dp_module;
1294 	for (i = 0; i < MAX_HWFNS_PER_DEVICE; i++) {
1295 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
1296 
1297 		p_hwfn->dp_level = dp_level;
1298 		p_hwfn->dp_module = dp_module;
1299 	}
1300 }
1301 
qed_init_struct(struct qed_dev * cdev)1302 void qed_init_struct(struct qed_dev *cdev)
1303 {
1304 	u8 i;
1305 
1306 	for (i = 0; i < MAX_HWFNS_PER_DEVICE; i++) {
1307 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
1308 
1309 		p_hwfn->cdev = cdev;
1310 		p_hwfn->my_id = i;
1311 		p_hwfn->b_active = false;
1312 
1313 		mutex_init(&p_hwfn->dmae_info.mutex);
1314 	}
1315 
1316 	/* hwfn 0 is always active */
1317 	cdev->hwfns[0].b_active = true;
1318 
1319 	/* set the default cache alignment to 128 */
1320 	cdev->cache_shift = 7;
1321 }
1322 
qed_qm_info_free(struct qed_hwfn * p_hwfn)1323 static void qed_qm_info_free(struct qed_hwfn *p_hwfn)
1324 {
1325 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1326 
1327 	kfree(qm_info->qm_pq_params);
1328 	qm_info->qm_pq_params = NULL;
1329 	kfree(qm_info->qm_vport_params);
1330 	qm_info->qm_vport_params = NULL;
1331 	kfree(qm_info->qm_port_params);
1332 	qm_info->qm_port_params = NULL;
1333 	kfree(qm_info->wfq_data);
1334 	qm_info->wfq_data = NULL;
1335 }
1336 
qed_dbg_user_data_free(struct qed_hwfn * p_hwfn)1337 static void qed_dbg_user_data_free(struct qed_hwfn *p_hwfn)
1338 {
1339 	kfree(p_hwfn->dbg_user_info);
1340 	p_hwfn->dbg_user_info = NULL;
1341 }
1342 
qed_resc_free(struct qed_dev * cdev)1343 void qed_resc_free(struct qed_dev *cdev)
1344 {
1345 	struct qed_rdma_info *rdma_info;
1346 	struct qed_hwfn *p_hwfn;
1347 	int i;
1348 
1349 	if (IS_VF(cdev)) {
1350 		for_each_hwfn(cdev, i)
1351 			qed_l2_free(&cdev->hwfns[i]);
1352 		return;
1353 	}
1354 
1355 	kfree(cdev->fw_data);
1356 	cdev->fw_data = NULL;
1357 
1358 	kfree(cdev->reset_stats);
1359 	cdev->reset_stats = NULL;
1360 
1361 	qed_llh_free(cdev);
1362 
1363 	for_each_hwfn(cdev, i) {
1364 		p_hwfn = cdev->hwfns + i;
1365 		rdma_info = p_hwfn->p_rdma_info;
1366 
1367 		qed_cxt_mngr_free(p_hwfn);
1368 		qed_qm_info_free(p_hwfn);
1369 		qed_spq_free(p_hwfn);
1370 		qed_eq_free(p_hwfn);
1371 		qed_consq_free(p_hwfn);
1372 		qed_int_free(p_hwfn);
1373 #ifdef CONFIG_QED_LL2
1374 		qed_ll2_free(p_hwfn);
1375 #endif
1376 		if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
1377 			qed_fcoe_free(p_hwfn);
1378 
1379 		if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
1380 			qed_iscsi_free(p_hwfn);
1381 			qed_ooo_free(p_hwfn);
1382 		}
1383 
1384 		if (QED_IS_RDMA_PERSONALITY(p_hwfn) && rdma_info) {
1385 			qed_spq_unregister_async_cb(p_hwfn, rdma_info->proto);
1386 			qed_rdma_info_free(p_hwfn);
1387 		}
1388 
1389 		qed_iov_free(p_hwfn);
1390 		qed_l2_free(p_hwfn);
1391 		qed_dmae_info_free(p_hwfn);
1392 		qed_dcbx_info_free(p_hwfn);
1393 		qed_dbg_user_data_free(p_hwfn);
1394 		qed_fw_overlay_mem_free(p_hwfn, p_hwfn->fw_overlay_mem);
1395 
1396 		/* Destroy doorbell recovery mechanism */
1397 		qed_db_recovery_teardown(p_hwfn);
1398 	}
1399 }
1400 
1401 /******************** QM initialization *******************/
1402 #define ACTIVE_TCS_BMAP 0x9f
1403 #define ACTIVE_TCS_BMAP_4PORT_K2 0xf
1404 
1405 /* determines the physical queue flags for a given PF. */
qed_get_pq_flags(struct qed_hwfn * p_hwfn)1406 static u32 qed_get_pq_flags(struct qed_hwfn *p_hwfn)
1407 {
1408 	u32 flags;
1409 
1410 	/* common flags */
1411 	flags = PQ_FLAGS_LB;
1412 
1413 	/* feature flags */
1414 	if (IS_QED_SRIOV(p_hwfn->cdev))
1415 		flags |= PQ_FLAGS_VFS;
1416 
1417 	/* protocol flags */
1418 	switch (p_hwfn->hw_info.personality) {
1419 	case QED_PCI_ETH:
1420 		flags |= PQ_FLAGS_MCOS;
1421 		break;
1422 	case QED_PCI_FCOE:
1423 		flags |= PQ_FLAGS_OFLD;
1424 		break;
1425 	case QED_PCI_ISCSI:
1426 		flags |= PQ_FLAGS_ACK | PQ_FLAGS_OOO | PQ_FLAGS_OFLD;
1427 		break;
1428 	case QED_PCI_ETH_ROCE:
1429 		flags |= PQ_FLAGS_MCOS | PQ_FLAGS_OFLD | PQ_FLAGS_LLT;
1430 		if (IS_QED_MULTI_TC_ROCE(p_hwfn))
1431 			flags |= PQ_FLAGS_MTC;
1432 		break;
1433 	case QED_PCI_ETH_IWARP:
1434 		flags |= PQ_FLAGS_MCOS | PQ_FLAGS_ACK | PQ_FLAGS_OOO |
1435 		    PQ_FLAGS_OFLD;
1436 		break;
1437 	default:
1438 		DP_ERR(p_hwfn,
1439 		       "unknown personality %d\n", p_hwfn->hw_info.personality);
1440 		return 0;
1441 	}
1442 
1443 	return flags;
1444 }
1445 
1446 /* Getters for resource amounts necessary for qm initialization */
qed_init_qm_get_num_tcs(struct qed_hwfn * p_hwfn)1447 static u8 qed_init_qm_get_num_tcs(struct qed_hwfn *p_hwfn)
1448 {
1449 	return p_hwfn->hw_info.num_hw_tc;
1450 }
1451 
qed_init_qm_get_num_vfs(struct qed_hwfn * p_hwfn)1452 static u16 qed_init_qm_get_num_vfs(struct qed_hwfn *p_hwfn)
1453 {
1454 	return IS_QED_SRIOV(p_hwfn->cdev) ?
1455 	       p_hwfn->cdev->p_iov_info->total_vfs : 0;
1456 }
1457 
qed_init_qm_get_num_mtc_tcs(struct qed_hwfn * p_hwfn)1458 static u8 qed_init_qm_get_num_mtc_tcs(struct qed_hwfn *p_hwfn)
1459 {
1460 	u32 pq_flags = qed_get_pq_flags(p_hwfn);
1461 
1462 	if (!(PQ_FLAGS_MTC & pq_flags))
1463 		return 1;
1464 
1465 	return qed_init_qm_get_num_tcs(p_hwfn);
1466 }
1467 
1468 #define NUM_DEFAULT_RLS 1
1469 
qed_init_qm_get_num_pf_rls(struct qed_hwfn * p_hwfn)1470 static u16 qed_init_qm_get_num_pf_rls(struct qed_hwfn *p_hwfn)
1471 {
1472 	u16 num_pf_rls, num_vfs = qed_init_qm_get_num_vfs(p_hwfn);
1473 
1474 	/* num RLs can't exceed resource amount of rls or vports */
1475 	num_pf_rls = (u16) min_t(u32, RESC_NUM(p_hwfn, QED_RL),
1476 				 RESC_NUM(p_hwfn, QED_VPORT));
1477 
1478 	/* Make sure after we reserve there's something left */
1479 	if (num_pf_rls < num_vfs + NUM_DEFAULT_RLS)
1480 		return 0;
1481 
1482 	/* subtract rls necessary for VFs and one default one for the PF */
1483 	num_pf_rls -= num_vfs + NUM_DEFAULT_RLS;
1484 
1485 	return num_pf_rls;
1486 }
1487 
qed_init_qm_get_num_vports(struct qed_hwfn * p_hwfn)1488 static u16 qed_init_qm_get_num_vports(struct qed_hwfn *p_hwfn)
1489 {
1490 	u32 pq_flags = qed_get_pq_flags(p_hwfn);
1491 
1492 	/* all pqs share the same vport, except for vfs and pf_rl pqs */
1493 	return (!!(PQ_FLAGS_RLS & pq_flags)) *
1494 	       qed_init_qm_get_num_pf_rls(p_hwfn) +
1495 	       (!!(PQ_FLAGS_VFS & pq_flags)) *
1496 	       qed_init_qm_get_num_vfs(p_hwfn) + 1;
1497 }
1498 
1499 /* calc amount of PQs according to the requested flags */
qed_init_qm_get_num_pqs(struct qed_hwfn * p_hwfn)1500 static u16 qed_init_qm_get_num_pqs(struct qed_hwfn *p_hwfn)
1501 {
1502 	u32 pq_flags = qed_get_pq_flags(p_hwfn);
1503 
1504 	return (!!(PQ_FLAGS_RLS & pq_flags)) *
1505 	       qed_init_qm_get_num_pf_rls(p_hwfn) +
1506 	       (!!(PQ_FLAGS_MCOS & pq_flags)) *
1507 	       qed_init_qm_get_num_tcs(p_hwfn) +
1508 	       (!!(PQ_FLAGS_LB & pq_flags)) + (!!(PQ_FLAGS_OOO & pq_flags)) +
1509 	       (!!(PQ_FLAGS_ACK & pq_flags)) +
1510 	       (!!(PQ_FLAGS_OFLD & pq_flags)) *
1511 	       qed_init_qm_get_num_mtc_tcs(p_hwfn) +
1512 	       (!!(PQ_FLAGS_LLT & pq_flags)) *
1513 	       qed_init_qm_get_num_mtc_tcs(p_hwfn) +
1514 	       (!!(PQ_FLAGS_VFS & pq_flags)) * qed_init_qm_get_num_vfs(p_hwfn);
1515 }
1516 
1517 /* initialize the top level QM params */
qed_init_qm_params(struct qed_hwfn * p_hwfn)1518 static void qed_init_qm_params(struct qed_hwfn *p_hwfn)
1519 {
1520 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1521 	bool four_port;
1522 
1523 	/* pq and vport bases for this PF */
1524 	qm_info->start_pq = (u16) RESC_START(p_hwfn, QED_PQ);
1525 	qm_info->start_vport = (u8) RESC_START(p_hwfn, QED_VPORT);
1526 
1527 	/* rate limiting and weighted fair queueing are always enabled */
1528 	qm_info->vport_rl_en = true;
1529 	qm_info->vport_wfq_en = true;
1530 
1531 	/* TC config is different for AH 4 port */
1532 	four_port = p_hwfn->cdev->num_ports_in_engine == MAX_NUM_PORTS_K2;
1533 
1534 	/* in AH 4 port we have fewer TCs per port */
1535 	qm_info->max_phys_tcs_per_port = four_port ? NUM_PHYS_TCS_4PORT_K2 :
1536 						     NUM_OF_PHYS_TCS;
1537 
1538 	/* unless MFW indicated otherwise, ooo_tc == 3 for
1539 	 * AH 4-port and 4 otherwise.
1540 	 */
1541 	if (!qm_info->ooo_tc)
1542 		qm_info->ooo_tc = four_port ? DCBX_TCP_OOO_K2_4PORT_TC :
1543 					      DCBX_TCP_OOO_TC;
1544 }
1545 
1546 /* initialize qm vport params */
qed_init_qm_vport_params(struct qed_hwfn * p_hwfn)1547 static void qed_init_qm_vport_params(struct qed_hwfn *p_hwfn)
1548 {
1549 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1550 	u8 i;
1551 
1552 	/* all vports participate in weighted fair queueing */
1553 	for (i = 0; i < qed_init_qm_get_num_vports(p_hwfn); i++)
1554 		qm_info->qm_vport_params[i].wfq = 1;
1555 }
1556 
1557 /* initialize qm port params */
qed_init_qm_port_params(struct qed_hwfn * p_hwfn)1558 static void qed_init_qm_port_params(struct qed_hwfn *p_hwfn)
1559 {
1560 	/* Initialize qm port parameters */
1561 	u8 i, active_phys_tcs, num_ports = p_hwfn->cdev->num_ports_in_engine;
1562 	struct qed_dev *cdev = p_hwfn->cdev;
1563 
1564 	/* indicate how ooo and high pri traffic is dealt with */
1565 	active_phys_tcs = num_ports == MAX_NUM_PORTS_K2 ?
1566 			  ACTIVE_TCS_BMAP_4PORT_K2 :
1567 			  ACTIVE_TCS_BMAP;
1568 
1569 	for (i = 0; i < num_ports; i++) {
1570 		struct init_qm_port_params *p_qm_port =
1571 		    &p_hwfn->qm_info.qm_port_params[i];
1572 		u16 pbf_max_cmd_lines;
1573 
1574 		p_qm_port->active = 1;
1575 		p_qm_port->active_phys_tcs = active_phys_tcs;
1576 		pbf_max_cmd_lines = (u16)NUM_OF_PBF_CMD_LINES(cdev);
1577 		p_qm_port->num_pbf_cmd_lines = pbf_max_cmd_lines / num_ports;
1578 		p_qm_port->num_btb_blocks = NUM_OF_BTB_BLOCKS(cdev) / num_ports;
1579 	}
1580 }
1581 
1582 /* Reset the params which must be reset for qm init. QM init may be called as
1583  * a result of flows other than driver load (e.g. dcbx renegotiation). Other
1584  * params may be affected by the init but would simply recalculate to the same
1585  * values. The allocations made for QM init, ports, vports, pqs and vfqs are not
1586  * affected as these amounts stay the same.
1587  */
qed_init_qm_reset_params(struct qed_hwfn * p_hwfn)1588 static void qed_init_qm_reset_params(struct qed_hwfn *p_hwfn)
1589 {
1590 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1591 
1592 	qm_info->num_pqs = 0;
1593 	qm_info->num_vports = 0;
1594 	qm_info->num_pf_rls = 0;
1595 	qm_info->num_vf_pqs = 0;
1596 	qm_info->first_vf_pq = 0;
1597 	qm_info->first_mcos_pq = 0;
1598 	qm_info->first_rl_pq = 0;
1599 }
1600 
qed_init_qm_advance_vport(struct qed_hwfn * p_hwfn)1601 static void qed_init_qm_advance_vport(struct qed_hwfn *p_hwfn)
1602 {
1603 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1604 
1605 	qm_info->num_vports++;
1606 
1607 	if (qm_info->num_vports > qed_init_qm_get_num_vports(p_hwfn))
1608 		DP_ERR(p_hwfn,
1609 		       "vport overflow! qm_info->num_vports %d, qm_init_get_num_vports() %d\n",
1610 		       qm_info->num_vports, qed_init_qm_get_num_vports(p_hwfn));
1611 }
1612 
1613 /* initialize a single pq and manage qm_info resources accounting.
1614  * The pq_init_flags param determines whether the PQ is rate limited
1615  * (for VF or PF) and whether a new vport is allocated to the pq or not
1616  * (i.e. vport will be shared).
1617  */
1618 
1619 /* flags for pq init */
1620 #define PQ_INIT_SHARE_VPORT     (1 << 0)
1621 #define PQ_INIT_PF_RL           (1 << 1)
1622 #define PQ_INIT_VF_RL           (1 << 2)
1623 
1624 /* defines for pq init */
1625 #define PQ_INIT_DEFAULT_WRR_GROUP       1
1626 #define PQ_INIT_DEFAULT_TC              0
1627 
qed_hw_info_set_offload_tc(struct qed_hw_info * p_info,u8 tc)1628 void qed_hw_info_set_offload_tc(struct qed_hw_info *p_info, u8 tc)
1629 {
1630 	p_info->offload_tc = tc;
1631 	p_info->offload_tc_set = true;
1632 }
1633 
qed_is_offload_tc_set(struct qed_hwfn * p_hwfn)1634 static bool qed_is_offload_tc_set(struct qed_hwfn *p_hwfn)
1635 {
1636 	return p_hwfn->hw_info.offload_tc_set;
1637 }
1638 
qed_get_offload_tc(struct qed_hwfn * p_hwfn)1639 static u32 qed_get_offload_tc(struct qed_hwfn *p_hwfn)
1640 {
1641 	if (qed_is_offload_tc_set(p_hwfn))
1642 		return p_hwfn->hw_info.offload_tc;
1643 
1644 	return PQ_INIT_DEFAULT_TC;
1645 }
1646 
qed_init_qm_pq(struct qed_hwfn * p_hwfn,struct qed_qm_info * qm_info,u8 tc,u32 pq_init_flags)1647 static void qed_init_qm_pq(struct qed_hwfn *p_hwfn,
1648 			   struct qed_qm_info *qm_info,
1649 			   u8 tc, u32 pq_init_flags)
1650 {
1651 	u16 pq_idx = qm_info->num_pqs, max_pq = qed_init_qm_get_num_pqs(p_hwfn);
1652 
1653 	if (pq_idx > max_pq)
1654 		DP_ERR(p_hwfn,
1655 		       "pq overflow! pq %d, max pq %d\n", pq_idx, max_pq);
1656 
1657 	/* init pq params */
1658 	qm_info->qm_pq_params[pq_idx].port_id = p_hwfn->port_id;
1659 	qm_info->qm_pq_params[pq_idx].vport_id = qm_info->start_vport +
1660 	    qm_info->num_vports;
1661 	qm_info->qm_pq_params[pq_idx].tc_id = tc;
1662 	qm_info->qm_pq_params[pq_idx].wrr_group = PQ_INIT_DEFAULT_WRR_GROUP;
1663 	qm_info->qm_pq_params[pq_idx].rl_valid =
1664 	    (pq_init_flags & PQ_INIT_PF_RL || pq_init_flags & PQ_INIT_VF_RL);
1665 
1666 	/* qm params accounting */
1667 	qm_info->num_pqs++;
1668 	if (!(pq_init_flags & PQ_INIT_SHARE_VPORT))
1669 		qm_info->num_vports++;
1670 
1671 	if (pq_init_flags & PQ_INIT_PF_RL)
1672 		qm_info->num_pf_rls++;
1673 
1674 	if (qm_info->num_vports > qed_init_qm_get_num_vports(p_hwfn))
1675 		DP_ERR(p_hwfn,
1676 		       "vport overflow! qm_info->num_vports %d, qm_init_get_num_vports() %d\n",
1677 		       qm_info->num_vports, qed_init_qm_get_num_vports(p_hwfn));
1678 
1679 	if (qm_info->num_pf_rls > qed_init_qm_get_num_pf_rls(p_hwfn))
1680 		DP_ERR(p_hwfn,
1681 		       "rl overflow! qm_info->num_pf_rls %d, qm_init_get_num_pf_rls() %d\n",
1682 		       qm_info->num_pf_rls, qed_init_qm_get_num_pf_rls(p_hwfn));
1683 }
1684 
1685 /* get pq index according to PQ_FLAGS */
qed_init_qm_get_idx_from_flags(struct qed_hwfn * p_hwfn,unsigned long pq_flags)1686 static u16 *qed_init_qm_get_idx_from_flags(struct qed_hwfn *p_hwfn,
1687 					   unsigned long pq_flags)
1688 {
1689 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1690 
1691 	/* Can't have multiple flags set here */
1692 	if (bitmap_weight(&pq_flags,
1693 			  sizeof(pq_flags) * BITS_PER_BYTE) > 1) {
1694 		DP_ERR(p_hwfn, "requested multiple pq flags 0x%lx\n", pq_flags);
1695 		goto err;
1696 	}
1697 
1698 	if (!(qed_get_pq_flags(p_hwfn) & pq_flags)) {
1699 		DP_ERR(p_hwfn, "pq flag 0x%lx is not set\n", pq_flags);
1700 		goto err;
1701 	}
1702 
1703 	switch (pq_flags) {
1704 	case PQ_FLAGS_RLS:
1705 		return &qm_info->first_rl_pq;
1706 	case PQ_FLAGS_MCOS:
1707 		return &qm_info->first_mcos_pq;
1708 	case PQ_FLAGS_LB:
1709 		return &qm_info->pure_lb_pq;
1710 	case PQ_FLAGS_OOO:
1711 		return &qm_info->ooo_pq;
1712 	case PQ_FLAGS_ACK:
1713 		return &qm_info->pure_ack_pq;
1714 	case PQ_FLAGS_OFLD:
1715 		return &qm_info->first_ofld_pq;
1716 	case PQ_FLAGS_LLT:
1717 		return &qm_info->first_llt_pq;
1718 	case PQ_FLAGS_VFS:
1719 		return &qm_info->first_vf_pq;
1720 	default:
1721 		goto err;
1722 	}
1723 
1724 err:
1725 	return &qm_info->start_pq;
1726 }
1727 
1728 /* save pq index in qm info */
qed_init_qm_set_idx(struct qed_hwfn * p_hwfn,u32 pq_flags,u16 pq_val)1729 static void qed_init_qm_set_idx(struct qed_hwfn *p_hwfn,
1730 				u32 pq_flags, u16 pq_val)
1731 {
1732 	u16 *base_pq_idx = qed_init_qm_get_idx_from_flags(p_hwfn, pq_flags);
1733 
1734 	*base_pq_idx = p_hwfn->qm_info.start_pq + pq_val;
1735 }
1736 
1737 /* get tx pq index, with the PQ TX base already set (ready for context init) */
qed_get_cm_pq_idx(struct qed_hwfn * p_hwfn,u32 pq_flags)1738 u16 qed_get_cm_pq_idx(struct qed_hwfn *p_hwfn, u32 pq_flags)
1739 {
1740 	u16 *base_pq_idx = qed_init_qm_get_idx_from_flags(p_hwfn, pq_flags);
1741 
1742 	return *base_pq_idx + CM_TX_PQ_BASE;
1743 }
1744 
qed_get_cm_pq_idx_mcos(struct qed_hwfn * p_hwfn,u8 tc)1745 u16 qed_get_cm_pq_idx_mcos(struct qed_hwfn *p_hwfn, u8 tc)
1746 {
1747 	u8 max_tc = qed_init_qm_get_num_tcs(p_hwfn);
1748 
1749 	if (max_tc == 0) {
1750 		DP_ERR(p_hwfn, "pq with flag 0x%lx do not exist\n",
1751 		       PQ_FLAGS_MCOS);
1752 		return p_hwfn->qm_info.start_pq;
1753 	}
1754 
1755 	if (tc > max_tc)
1756 		DP_ERR(p_hwfn, "tc %d must be smaller than %d\n", tc, max_tc);
1757 
1758 	return qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_MCOS) + (tc % max_tc);
1759 }
1760 
qed_get_cm_pq_idx_vf(struct qed_hwfn * p_hwfn,u16 vf)1761 u16 qed_get_cm_pq_idx_vf(struct qed_hwfn *p_hwfn, u16 vf)
1762 {
1763 	u16 max_vf = qed_init_qm_get_num_vfs(p_hwfn);
1764 
1765 	if (max_vf == 0) {
1766 		DP_ERR(p_hwfn, "pq with flag 0x%lx do not exist\n",
1767 		       PQ_FLAGS_VFS);
1768 		return p_hwfn->qm_info.start_pq;
1769 	}
1770 
1771 	if (vf > max_vf)
1772 		DP_ERR(p_hwfn, "vf %d must be smaller than %d\n", vf, max_vf);
1773 
1774 	return qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_VFS) + (vf % max_vf);
1775 }
1776 
qed_get_cm_pq_idx_ofld_mtc(struct qed_hwfn * p_hwfn,u8 tc)1777 u16 qed_get_cm_pq_idx_ofld_mtc(struct qed_hwfn *p_hwfn, u8 tc)
1778 {
1779 	u16 first_ofld_pq, pq_offset;
1780 
1781 	first_ofld_pq = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
1782 	pq_offset = (tc < qed_init_qm_get_num_mtc_tcs(p_hwfn)) ?
1783 		    tc : PQ_INIT_DEFAULT_TC;
1784 
1785 	return first_ofld_pq + pq_offset;
1786 }
1787 
qed_get_cm_pq_idx_llt_mtc(struct qed_hwfn * p_hwfn,u8 tc)1788 u16 qed_get_cm_pq_idx_llt_mtc(struct qed_hwfn *p_hwfn, u8 tc)
1789 {
1790 	u16 first_llt_pq, pq_offset;
1791 
1792 	first_llt_pq = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_LLT);
1793 	pq_offset = (tc < qed_init_qm_get_num_mtc_tcs(p_hwfn)) ?
1794 		    tc : PQ_INIT_DEFAULT_TC;
1795 
1796 	return first_llt_pq + pq_offset;
1797 }
1798 
1799 /* Functions for creating specific types of pqs */
qed_init_qm_lb_pq(struct qed_hwfn * p_hwfn)1800 static void qed_init_qm_lb_pq(struct qed_hwfn *p_hwfn)
1801 {
1802 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1803 
1804 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_LB))
1805 		return;
1806 
1807 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_LB, qm_info->num_pqs);
1808 	qed_init_qm_pq(p_hwfn, qm_info, PURE_LB_TC, PQ_INIT_SHARE_VPORT);
1809 }
1810 
qed_init_qm_ooo_pq(struct qed_hwfn * p_hwfn)1811 static void qed_init_qm_ooo_pq(struct qed_hwfn *p_hwfn)
1812 {
1813 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1814 
1815 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_OOO))
1816 		return;
1817 
1818 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_OOO, qm_info->num_pqs);
1819 	qed_init_qm_pq(p_hwfn, qm_info, qm_info->ooo_tc, PQ_INIT_SHARE_VPORT);
1820 }
1821 
qed_init_qm_pure_ack_pq(struct qed_hwfn * p_hwfn)1822 static void qed_init_qm_pure_ack_pq(struct qed_hwfn *p_hwfn)
1823 {
1824 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1825 
1826 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_ACK))
1827 		return;
1828 
1829 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_ACK, qm_info->num_pqs);
1830 	qed_init_qm_pq(p_hwfn, qm_info, qed_get_offload_tc(p_hwfn),
1831 		       PQ_INIT_SHARE_VPORT);
1832 }
1833 
qed_init_qm_mtc_pqs(struct qed_hwfn * p_hwfn)1834 static void qed_init_qm_mtc_pqs(struct qed_hwfn *p_hwfn)
1835 {
1836 	u8 num_tcs = qed_init_qm_get_num_mtc_tcs(p_hwfn);
1837 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1838 	u8 tc;
1839 
1840 	/* override pq's TC if offload TC is set */
1841 	for (tc = 0; tc < num_tcs; tc++)
1842 		qed_init_qm_pq(p_hwfn, qm_info,
1843 			       qed_is_offload_tc_set(p_hwfn) ?
1844 			       p_hwfn->hw_info.offload_tc : tc,
1845 			       PQ_INIT_SHARE_VPORT);
1846 }
1847 
qed_init_qm_offload_pq(struct qed_hwfn * p_hwfn)1848 static void qed_init_qm_offload_pq(struct qed_hwfn *p_hwfn)
1849 {
1850 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1851 
1852 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_OFLD))
1853 		return;
1854 
1855 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_OFLD, qm_info->num_pqs);
1856 	qed_init_qm_mtc_pqs(p_hwfn);
1857 }
1858 
qed_init_qm_low_latency_pq(struct qed_hwfn * p_hwfn)1859 static void qed_init_qm_low_latency_pq(struct qed_hwfn *p_hwfn)
1860 {
1861 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1862 
1863 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_LLT))
1864 		return;
1865 
1866 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_LLT, qm_info->num_pqs);
1867 	qed_init_qm_mtc_pqs(p_hwfn);
1868 }
1869 
qed_init_qm_mcos_pqs(struct qed_hwfn * p_hwfn)1870 static void qed_init_qm_mcos_pqs(struct qed_hwfn *p_hwfn)
1871 {
1872 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1873 	u8 tc_idx;
1874 
1875 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_MCOS))
1876 		return;
1877 
1878 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_MCOS, qm_info->num_pqs);
1879 	for (tc_idx = 0; tc_idx < qed_init_qm_get_num_tcs(p_hwfn); tc_idx++)
1880 		qed_init_qm_pq(p_hwfn, qm_info, tc_idx, PQ_INIT_SHARE_VPORT);
1881 }
1882 
qed_init_qm_vf_pqs(struct qed_hwfn * p_hwfn)1883 static void qed_init_qm_vf_pqs(struct qed_hwfn *p_hwfn)
1884 {
1885 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1886 	u16 vf_idx, num_vfs = qed_init_qm_get_num_vfs(p_hwfn);
1887 
1888 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_VFS))
1889 		return;
1890 
1891 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_VFS, qm_info->num_pqs);
1892 	qm_info->num_vf_pqs = num_vfs;
1893 	for (vf_idx = 0; vf_idx < num_vfs; vf_idx++)
1894 		qed_init_qm_pq(p_hwfn,
1895 			       qm_info, PQ_INIT_DEFAULT_TC, PQ_INIT_VF_RL);
1896 }
1897 
qed_init_qm_rl_pqs(struct qed_hwfn * p_hwfn)1898 static void qed_init_qm_rl_pqs(struct qed_hwfn *p_hwfn)
1899 {
1900 	u16 pf_rls_idx, num_pf_rls = qed_init_qm_get_num_pf_rls(p_hwfn);
1901 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1902 
1903 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_RLS))
1904 		return;
1905 
1906 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_RLS, qm_info->num_pqs);
1907 	for (pf_rls_idx = 0; pf_rls_idx < num_pf_rls; pf_rls_idx++)
1908 		qed_init_qm_pq(p_hwfn, qm_info, qed_get_offload_tc(p_hwfn),
1909 			       PQ_INIT_PF_RL);
1910 }
1911 
qed_init_qm_pq_params(struct qed_hwfn * p_hwfn)1912 static void qed_init_qm_pq_params(struct qed_hwfn *p_hwfn)
1913 {
1914 	/* rate limited pqs, must come first (FW assumption) */
1915 	qed_init_qm_rl_pqs(p_hwfn);
1916 
1917 	/* pqs for multi cos */
1918 	qed_init_qm_mcos_pqs(p_hwfn);
1919 
1920 	/* pure loopback pq */
1921 	qed_init_qm_lb_pq(p_hwfn);
1922 
1923 	/* out of order pq */
1924 	qed_init_qm_ooo_pq(p_hwfn);
1925 
1926 	/* pure ack pq */
1927 	qed_init_qm_pure_ack_pq(p_hwfn);
1928 
1929 	/* pq for offloaded protocol */
1930 	qed_init_qm_offload_pq(p_hwfn);
1931 
1932 	/* low latency pq */
1933 	qed_init_qm_low_latency_pq(p_hwfn);
1934 
1935 	/* done sharing vports */
1936 	qed_init_qm_advance_vport(p_hwfn);
1937 
1938 	/* pqs for vfs */
1939 	qed_init_qm_vf_pqs(p_hwfn);
1940 }
1941 
1942 /* compare values of getters against resources amounts */
qed_init_qm_sanity(struct qed_hwfn * p_hwfn)1943 static int qed_init_qm_sanity(struct qed_hwfn *p_hwfn)
1944 {
1945 	if (qed_init_qm_get_num_vports(p_hwfn) > RESC_NUM(p_hwfn, QED_VPORT)) {
1946 		DP_ERR(p_hwfn, "requested amount of vports exceeds resource\n");
1947 		return -EINVAL;
1948 	}
1949 
1950 	if (qed_init_qm_get_num_pqs(p_hwfn) <= RESC_NUM(p_hwfn, QED_PQ))
1951 		return 0;
1952 
1953 	if (QED_IS_ROCE_PERSONALITY(p_hwfn)) {
1954 		p_hwfn->hw_info.multi_tc_roce_en = false;
1955 		DP_NOTICE(p_hwfn,
1956 			  "multi-tc roce was disabled to reduce requested amount of pqs\n");
1957 		if (qed_init_qm_get_num_pqs(p_hwfn) <= RESC_NUM(p_hwfn, QED_PQ))
1958 			return 0;
1959 	}
1960 
1961 	DP_ERR(p_hwfn, "requested amount of pqs exceeds resource\n");
1962 	return -EINVAL;
1963 }
1964 
qed_dp_init_qm_params(struct qed_hwfn * p_hwfn)1965 static void qed_dp_init_qm_params(struct qed_hwfn *p_hwfn)
1966 {
1967 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1968 	struct init_qm_vport_params *vport;
1969 	struct init_qm_port_params *port;
1970 	struct init_qm_pq_params *pq;
1971 	int i, tc;
1972 
1973 	/* top level params */
1974 	DP_VERBOSE(p_hwfn,
1975 		   NETIF_MSG_HW,
1976 		   "qm init top level params: start_pq %d, start_vport %d, pure_lb_pq %d, offload_pq %d, llt_pq %d, pure_ack_pq %d\n",
1977 		   qm_info->start_pq,
1978 		   qm_info->start_vport,
1979 		   qm_info->pure_lb_pq,
1980 		   qm_info->first_ofld_pq,
1981 		   qm_info->first_llt_pq,
1982 		   qm_info->pure_ack_pq);
1983 	DP_VERBOSE(p_hwfn,
1984 		   NETIF_MSG_HW,
1985 		   "ooo_pq %d, first_vf_pq %d, num_pqs %d, num_vf_pqs %d, num_vports %d, max_phys_tcs_per_port %d\n",
1986 		   qm_info->ooo_pq,
1987 		   qm_info->first_vf_pq,
1988 		   qm_info->num_pqs,
1989 		   qm_info->num_vf_pqs,
1990 		   qm_info->num_vports, qm_info->max_phys_tcs_per_port);
1991 	DP_VERBOSE(p_hwfn,
1992 		   NETIF_MSG_HW,
1993 		   "pf_rl_en %d, pf_wfq_en %d, vport_rl_en %d, vport_wfq_en %d, pf_wfq %d, pf_rl %d, num_pf_rls %d, pq_flags %x\n",
1994 		   qm_info->pf_rl_en,
1995 		   qm_info->pf_wfq_en,
1996 		   qm_info->vport_rl_en,
1997 		   qm_info->vport_wfq_en,
1998 		   qm_info->pf_wfq,
1999 		   qm_info->pf_rl,
2000 		   qm_info->num_pf_rls, qed_get_pq_flags(p_hwfn));
2001 
2002 	/* port table */
2003 	for (i = 0; i < p_hwfn->cdev->num_ports_in_engine; i++) {
2004 		port = &(qm_info->qm_port_params[i]);
2005 		DP_VERBOSE(p_hwfn,
2006 			   NETIF_MSG_HW,
2007 			   "port idx %d, active %d, active_phys_tcs %d, num_pbf_cmd_lines %d, num_btb_blocks %d, reserved %d\n",
2008 			   i,
2009 			   port->active,
2010 			   port->active_phys_tcs,
2011 			   port->num_pbf_cmd_lines,
2012 			   port->num_btb_blocks, port->reserved);
2013 	}
2014 
2015 	/* vport table */
2016 	for (i = 0; i < qm_info->num_vports; i++) {
2017 		vport = &(qm_info->qm_vport_params[i]);
2018 		DP_VERBOSE(p_hwfn,
2019 			   NETIF_MSG_HW,
2020 			   "vport idx %d, wfq %d, first_tx_pq_id [ ",
2021 			   qm_info->start_vport + i, vport->wfq);
2022 		for (tc = 0; tc < NUM_OF_TCS; tc++)
2023 			DP_VERBOSE(p_hwfn,
2024 				   NETIF_MSG_HW,
2025 				   "%d ", vport->first_tx_pq_id[tc]);
2026 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW, "]\n");
2027 	}
2028 
2029 	/* pq table */
2030 	for (i = 0; i < qm_info->num_pqs; i++) {
2031 		pq = &(qm_info->qm_pq_params[i]);
2032 		DP_VERBOSE(p_hwfn,
2033 			   NETIF_MSG_HW,
2034 			   "pq idx %d, port %d, vport_id %d, tc %d, wrr_grp %d, rl_valid %d rl_id %d\n",
2035 			   qm_info->start_pq + i,
2036 			   pq->port_id,
2037 			   pq->vport_id,
2038 			   pq->tc_id, pq->wrr_group, pq->rl_valid, pq->rl_id);
2039 	}
2040 }
2041 
qed_init_qm_info(struct qed_hwfn * p_hwfn)2042 static void qed_init_qm_info(struct qed_hwfn *p_hwfn)
2043 {
2044 	/* reset params required for init run */
2045 	qed_init_qm_reset_params(p_hwfn);
2046 
2047 	/* init QM top level params */
2048 	qed_init_qm_params(p_hwfn);
2049 
2050 	/* init QM port params */
2051 	qed_init_qm_port_params(p_hwfn);
2052 
2053 	/* init QM vport params */
2054 	qed_init_qm_vport_params(p_hwfn);
2055 
2056 	/* init QM physical queue params */
2057 	qed_init_qm_pq_params(p_hwfn);
2058 
2059 	/* display all that init */
2060 	qed_dp_init_qm_params(p_hwfn);
2061 }
2062 
2063 /* This function reconfigures the QM pf on the fly.
2064  * For this purpose we:
2065  * 1. reconfigure the QM database
2066  * 2. set new values to runtime array
2067  * 3. send an sdm_qm_cmd through the rbc interface to stop the QM
2068  * 4. activate init tool in QM_PF stage
2069  * 5. send an sdm_qm_cmd through rbc interface to release the QM
2070  */
qed_qm_reconf(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)2071 int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
2072 {
2073 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
2074 	bool b_rc;
2075 	int rc;
2076 
2077 	/* initialize qed's qm data structure */
2078 	qed_init_qm_info(p_hwfn);
2079 
2080 	/* stop PF's qm queues */
2081 	spin_lock_bh(&qm_lock);
2082 	b_rc = qed_send_qm_stop_cmd(p_hwfn, p_ptt, false, true,
2083 				    qm_info->start_pq, qm_info->num_pqs);
2084 	spin_unlock_bh(&qm_lock);
2085 	if (!b_rc)
2086 		return -EINVAL;
2087 
2088 	/* prepare QM portion of runtime array */
2089 	qed_qm_init_pf(p_hwfn, p_ptt, false);
2090 
2091 	/* activate init tool on runtime array */
2092 	rc = qed_init_run(p_hwfn, p_ptt, PHASE_QM_PF, p_hwfn->rel_pf_id,
2093 			  p_hwfn->hw_info.hw_mode);
2094 	if (rc)
2095 		return rc;
2096 
2097 	/* start PF's qm queues */
2098 	spin_lock_bh(&qm_lock);
2099 	b_rc = qed_send_qm_stop_cmd(p_hwfn, p_ptt, true, true,
2100 				    qm_info->start_pq, qm_info->num_pqs);
2101 	spin_unlock_bh(&qm_lock);
2102 	if (!b_rc)
2103 		return -EINVAL;
2104 
2105 	return 0;
2106 }
2107 
qed_alloc_qm_data(struct qed_hwfn * p_hwfn)2108 static int qed_alloc_qm_data(struct qed_hwfn *p_hwfn)
2109 {
2110 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
2111 	int rc;
2112 
2113 	rc = qed_init_qm_sanity(p_hwfn);
2114 	if (rc)
2115 		goto alloc_err;
2116 
2117 	qm_info->qm_pq_params = kcalloc(qed_init_qm_get_num_pqs(p_hwfn),
2118 					sizeof(*qm_info->qm_pq_params),
2119 					GFP_KERNEL);
2120 	if (!qm_info->qm_pq_params)
2121 		goto alloc_err;
2122 
2123 	qm_info->qm_vport_params = kcalloc(qed_init_qm_get_num_vports(p_hwfn),
2124 					   sizeof(*qm_info->qm_vport_params),
2125 					   GFP_KERNEL);
2126 	if (!qm_info->qm_vport_params)
2127 		goto alloc_err;
2128 
2129 	qm_info->qm_port_params = kcalloc(p_hwfn->cdev->num_ports_in_engine,
2130 					  sizeof(*qm_info->qm_port_params),
2131 					  GFP_KERNEL);
2132 	if (!qm_info->qm_port_params)
2133 		goto alloc_err;
2134 
2135 	qm_info->wfq_data = kcalloc(qed_init_qm_get_num_vports(p_hwfn),
2136 				    sizeof(*qm_info->wfq_data),
2137 				    GFP_KERNEL);
2138 	if (!qm_info->wfq_data)
2139 		goto alloc_err;
2140 
2141 	return 0;
2142 
2143 alloc_err:
2144 	DP_NOTICE(p_hwfn, "Failed to allocate memory for QM params\n");
2145 	qed_qm_info_free(p_hwfn);
2146 	return -ENOMEM;
2147 }
2148 
qed_resc_alloc(struct qed_dev * cdev)2149 int qed_resc_alloc(struct qed_dev *cdev)
2150 {
2151 	u32 rdma_tasks, excess_tasks;
2152 	u32 line_count;
2153 	int i, rc = 0;
2154 
2155 	if (IS_VF(cdev)) {
2156 		for_each_hwfn(cdev, i) {
2157 			rc = qed_l2_alloc(&cdev->hwfns[i]);
2158 			if (rc)
2159 				return rc;
2160 		}
2161 		return rc;
2162 	}
2163 
2164 	cdev->fw_data = kzalloc(sizeof(*cdev->fw_data), GFP_KERNEL);
2165 	if (!cdev->fw_data)
2166 		return -ENOMEM;
2167 
2168 	for_each_hwfn(cdev, i) {
2169 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
2170 		u32 n_eqes, num_cons;
2171 
2172 		/* Initialize the doorbell recovery mechanism */
2173 		rc = qed_db_recovery_setup(p_hwfn);
2174 		if (rc)
2175 			goto alloc_err;
2176 
2177 		/* First allocate the context manager structure */
2178 		rc = qed_cxt_mngr_alloc(p_hwfn);
2179 		if (rc)
2180 			goto alloc_err;
2181 
2182 		/* Set the HW cid/tid numbers (in the contest manager)
2183 		 * Must be done prior to any further computations.
2184 		 */
2185 		rc = qed_cxt_set_pf_params(p_hwfn, RDMA_MAX_TIDS);
2186 		if (rc)
2187 			goto alloc_err;
2188 
2189 		rc = qed_alloc_qm_data(p_hwfn);
2190 		if (rc)
2191 			goto alloc_err;
2192 
2193 		/* init qm info */
2194 		qed_init_qm_info(p_hwfn);
2195 
2196 		/* Compute the ILT client partition */
2197 		rc = qed_cxt_cfg_ilt_compute(p_hwfn, &line_count);
2198 		if (rc) {
2199 			DP_NOTICE(p_hwfn,
2200 				  "too many ILT lines; re-computing with less lines\n");
2201 			/* In case there are not enough ILT lines we reduce the
2202 			 * number of RDMA tasks and re-compute.
2203 			 */
2204 			excess_tasks =
2205 			    qed_cxt_cfg_ilt_compute_excess(p_hwfn, line_count);
2206 			if (!excess_tasks)
2207 				goto alloc_err;
2208 
2209 			rdma_tasks = RDMA_MAX_TIDS - excess_tasks;
2210 			rc = qed_cxt_set_pf_params(p_hwfn, rdma_tasks);
2211 			if (rc)
2212 				goto alloc_err;
2213 
2214 			rc = qed_cxt_cfg_ilt_compute(p_hwfn, &line_count);
2215 			if (rc) {
2216 				DP_ERR(p_hwfn,
2217 				       "failed ILT compute. Requested too many lines: %u\n",
2218 				       line_count);
2219 
2220 				goto alloc_err;
2221 			}
2222 		}
2223 
2224 		/* CID map / ILT shadow table / T2
2225 		 * The talbes sizes are determined by the computations above
2226 		 */
2227 		rc = qed_cxt_tables_alloc(p_hwfn);
2228 		if (rc)
2229 			goto alloc_err;
2230 
2231 		/* SPQ, must follow ILT because initializes SPQ context */
2232 		rc = qed_spq_alloc(p_hwfn);
2233 		if (rc)
2234 			goto alloc_err;
2235 
2236 		/* SP status block allocation */
2237 		p_hwfn->p_dpc_ptt = qed_get_reserved_ptt(p_hwfn,
2238 							 RESERVED_PTT_DPC);
2239 
2240 		rc = qed_int_alloc(p_hwfn, p_hwfn->p_main_ptt);
2241 		if (rc)
2242 			goto alloc_err;
2243 
2244 		rc = qed_iov_alloc(p_hwfn);
2245 		if (rc)
2246 			goto alloc_err;
2247 
2248 		/* EQ */
2249 		n_eqes = qed_chain_get_capacity(&p_hwfn->p_spq->chain);
2250 		if (QED_IS_RDMA_PERSONALITY(p_hwfn)) {
2251 			u32 n_srq = qed_cxt_get_total_srq_count(p_hwfn);
2252 			enum protocol_type rdma_proto;
2253 
2254 			if (QED_IS_ROCE_PERSONALITY(p_hwfn))
2255 				rdma_proto = PROTOCOLID_ROCE;
2256 			else
2257 				rdma_proto = PROTOCOLID_IWARP;
2258 
2259 			num_cons = qed_cxt_get_proto_cid_count(p_hwfn,
2260 							       rdma_proto,
2261 							       NULL) * 2;
2262 			/* EQ should be able to get events from all SRQ's
2263 			 * at the same time
2264 			 */
2265 			n_eqes += num_cons + 2 * MAX_NUM_VFS_BB + n_srq;
2266 		} else if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
2267 			num_cons =
2268 			    qed_cxt_get_proto_cid_count(p_hwfn,
2269 							PROTOCOLID_ISCSI,
2270 							NULL);
2271 			n_eqes += 2 * num_cons;
2272 		}
2273 
2274 		if (n_eqes > 0xFFFF) {
2275 			DP_ERR(p_hwfn,
2276 			       "Cannot allocate 0x%x EQ elements. The maximum of a u16 chain is 0x%x\n",
2277 			       n_eqes, 0xFFFF);
2278 			goto alloc_no_mem;
2279 		}
2280 
2281 		rc = qed_eq_alloc(p_hwfn, (u16) n_eqes);
2282 		if (rc)
2283 			goto alloc_err;
2284 
2285 		rc = qed_consq_alloc(p_hwfn);
2286 		if (rc)
2287 			goto alloc_err;
2288 
2289 		rc = qed_l2_alloc(p_hwfn);
2290 		if (rc)
2291 			goto alloc_err;
2292 
2293 #ifdef CONFIG_QED_LL2
2294 		if (p_hwfn->using_ll2) {
2295 			rc = qed_ll2_alloc(p_hwfn);
2296 			if (rc)
2297 				goto alloc_err;
2298 		}
2299 #endif
2300 
2301 		if (p_hwfn->hw_info.personality == QED_PCI_FCOE) {
2302 			rc = qed_fcoe_alloc(p_hwfn);
2303 			if (rc)
2304 				goto alloc_err;
2305 		}
2306 
2307 		if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
2308 			rc = qed_iscsi_alloc(p_hwfn);
2309 			if (rc)
2310 				goto alloc_err;
2311 			rc = qed_ooo_alloc(p_hwfn);
2312 			if (rc)
2313 				goto alloc_err;
2314 		}
2315 
2316 		if (QED_IS_RDMA_PERSONALITY(p_hwfn)) {
2317 			rc = qed_rdma_info_alloc(p_hwfn);
2318 			if (rc)
2319 				goto alloc_err;
2320 		}
2321 
2322 		/* DMA info initialization */
2323 		rc = qed_dmae_info_alloc(p_hwfn);
2324 		if (rc)
2325 			goto alloc_err;
2326 
2327 		/* DCBX initialization */
2328 		rc = qed_dcbx_info_alloc(p_hwfn);
2329 		if (rc)
2330 			goto alloc_err;
2331 
2332 		rc = qed_dbg_alloc_user_data(p_hwfn, &p_hwfn->dbg_user_info);
2333 		if (rc)
2334 			goto alloc_err;
2335 	}
2336 
2337 	rc = qed_llh_alloc(cdev);
2338 	if (rc) {
2339 		DP_NOTICE(cdev,
2340 			  "Failed to allocate memory for the llh_info structure\n");
2341 		goto alloc_err;
2342 	}
2343 
2344 	cdev->reset_stats = kzalloc(sizeof(*cdev->reset_stats), GFP_KERNEL);
2345 	if (!cdev->reset_stats)
2346 		goto alloc_no_mem;
2347 
2348 	return 0;
2349 
2350 alloc_no_mem:
2351 	rc = -ENOMEM;
2352 alloc_err:
2353 	qed_resc_free(cdev);
2354 	return rc;
2355 }
2356 
qed_resc_setup(struct qed_dev * cdev)2357 void qed_resc_setup(struct qed_dev *cdev)
2358 {
2359 	int i;
2360 
2361 	if (IS_VF(cdev)) {
2362 		for_each_hwfn(cdev, i)
2363 			qed_l2_setup(&cdev->hwfns[i]);
2364 		return;
2365 	}
2366 
2367 	for_each_hwfn(cdev, i) {
2368 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
2369 
2370 		qed_cxt_mngr_setup(p_hwfn);
2371 		qed_spq_setup(p_hwfn);
2372 		qed_eq_setup(p_hwfn);
2373 		qed_consq_setup(p_hwfn);
2374 
2375 		/* Read shadow of current MFW mailbox */
2376 		qed_mcp_read_mb(p_hwfn, p_hwfn->p_main_ptt);
2377 		memcpy(p_hwfn->mcp_info->mfw_mb_shadow,
2378 		       p_hwfn->mcp_info->mfw_mb_cur,
2379 		       p_hwfn->mcp_info->mfw_mb_length);
2380 
2381 		qed_int_setup(p_hwfn, p_hwfn->p_main_ptt);
2382 
2383 		qed_l2_setup(p_hwfn);
2384 		qed_iov_setup(p_hwfn);
2385 #ifdef CONFIG_QED_LL2
2386 		if (p_hwfn->using_ll2)
2387 			qed_ll2_setup(p_hwfn);
2388 #endif
2389 		if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
2390 			qed_fcoe_setup(p_hwfn);
2391 
2392 		if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
2393 			qed_iscsi_setup(p_hwfn);
2394 			qed_ooo_setup(p_hwfn);
2395 		}
2396 	}
2397 }
2398 
2399 #define FINAL_CLEANUP_POLL_CNT          (100)
2400 #define FINAL_CLEANUP_POLL_TIME         (10)
qed_final_cleanup(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u16 id,bool is_vf)2401 int qed_final_cleanup(struct qed_hwfn *p_hwfn,
2402 		      struct qed_ptt *p_ptt, u16 id, bool is_vf)
2403 {
2404 	u32 command = 0, addr, count = FINAL_CLEANUP_POLL_CNT;
2405 	int rc = -EBUSY;
2406 
2407 	addr = GTT_BAR0_MAP_REG_USDM_RAM +
2408 		USTORM_FLR_FINAL_ACK_OFFSET(p_hwfn->rel_pf_id);
2409 
2410 	if (is_vf)
2411 		id += 0x10;
2412 
2413 	command |= X_FINAL_CLEANUP_AGG_INT <<
2414 		SDM_AGG_INT_COMP_PARAMS_AGG_INT_INDEX_SHIFT;
2415 	command |= 1 << SDM_AGG_INT_COMP_PARAMS_AGG_VECTOR_ENABLE_SHIFT;
2416 	command |= id << SDM_AGG_INT_COMP_PARAMS_AGG_VECTOR_BIT_SHIFT;
2417 	command |= SDM_COMP_TYPE_AGG_INT << SDM_OP_GEN_COMP_TYPE_SHIFT;
2418 
2419 	/* Make sure notification is not set before initiating final cleanup */
2420 	if (REG_RD(p_hwfn, addr)) {
2421 		DP_NOTICE(p_hwfn,
2422 			  "Unexpected; Found final cleanup notification before initiating final cleanup\n");
2423 		REG_WR(p_hwfn, addr, 0);
2424 	}
2425 
2426 	DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2427 		   "Sending final cleanup for PFVF[%d] [Command %08x]\n",
2428 		   id, command);
2429 
2430 	qed_wr(p_hwfn, p_ptt, XSDM_REG_OPERATION_GEN, command);
2431 
2432 	/* Poll until completion */
2433 	while (!REG_RD(p_hwfn, addr) && count--)
2434 		msleep(FINAL_CLEANUP_POLL_TIME);
2435 
2436 	if (REG_RD(p_hwfn, addr))
2437 		rc = 0;
2438 	else
2439 		DP_NOTICE(p_hwfn,
2440 			  "Failed to receive FW final cleanup notification\n");
2441 
2442 	/* Cleanup afterwards */
2443 	REG_WR(p_hwfn, addr, 0);
2444 
2445 	return rc;
2446 }
2447 
qed_calc_hw_mode(struct qed_hwfn * p_hwfn)2448 static int qed_calc_hw_mode(struct qed_hwfn *p_hwfn)
2449 {
2450 	int hw_mode = 0;
2451 
2452 	if (QED_IS_BB_B0(p_hwfn->cdev)) {
2453 		hw_mode |= 1 << MODE_BB;
2454 	} else if (QED_IS_AH(p_hwfn->cdev)) {
2455 		hw_mode |= 1 << MODE_K2;
2456 	} else {
2457 		DP_NOTICE(p_hwfn, "Unknown chip type %#x\n",
2458 			  p_hwfn->cdev->type);
2459 		return -EINVAL;
2460 	}
2461 
2462 	switch (p_hwfn->cdev->num_ports_in_engine) {
2463 	case 1:
2464 		hw_mode |= 1 << MODE_PORTS_PER_ENG_1;
2465 		break;
2466 	case 2:
2467 		hw_mode |= 1 << MODE_PORTS_PER_ENG_2;
2468 		break;
2469 	case 4:
2470 		hw_mode |= 1 << MODE_PORTS_PER_ENG_4;
2471 		break;
2472 	default:
2473 		DP_NOTICE(p_hwfn, "num_ports_in_engine = %d not supported\n",
2474 			  p_hwfn->cdev->num_ports_in_engine);
2475 		return -EINVAL;
2476 	}
2477 
2478 	if (test_bit(QED_MF_OVLAN_CLSS, &p_hwfn->cdev->mf_bits))
2479 		hw_mode |= 1 << MODE_MF_SD;
2480 	else
2481 		hw_mode |= 1 << MODE_MF_SI;
2482 
2483 	hw_mode |= 1 << MODE_ASIC;
2484 
2485 	if (p_hwfn->cdev->num_hwfns > 1)
2486 		hw_mode |= 1 << MODE_100G;
2487 
2488 	p_hwfn->hw_info.hw_mode = hw_mode;
2489 
2490 	DP_VERBOSE(p_hwfn, (NETIF_MSG_PROBE | NETIF_MSG_IFUP),
2491 		   "Configuring function for hw_mode: 0x%08x\n",
2492 		   p_hwfn->hw_info.hw_mode);
2493 
2494 	return 0;
2495 }
2496 
2497 /* Init run time data for all PFs on an engine. */
qed_init_cau_rt_data(struct qed_dev * cdev)2498 static void qed_init_cau_rt_data(struct qed_dev *cdev)
2499 {
2500 	u32 offset = CAU_REG_SB_VAR_MEMORY_RT_OFFSET;
2501 	int i, igu_sb_id;
2502 
2503 	for_each_hwfn(cdev, i) {
2504 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
2505 		struct qed_igu_info *p_igu_info;
2506 		struct qed_igu_block *p_block;
2507 		struct cau_sb_entry sb_entry;
2508 
2509 		p_igu_info = p_hwfn->hw_info.p_igu_info;
2510 
2511 		for (igu_sb_id = 0;
2512 		     igu_sb_id < QED_MAPPING_MEMORY_SIZE(cdev); igu_sb_id++) {
2513 			p_block = &p_igu_info->entry[igu_sb_id];
2514 
2515 			if (!p_block->is_pf)
2516 				continue;
2517 
2518 			qed_init_cau_sb_entry(p_hwfn, &sb_entry,
2519 					      p_block->function_id, 0, 0);
2520 			STORE_RT_REG_AGG(p_hwfn, offset + igu_sb_id * 2,
2521 					 sb_entry);
2522 		}
2523 	}
2524 }
2525 
qed_init_cache_line_size(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)2526 static void qed_init_cache_line_size(struct qed_hwfn *p_hwfn,
2527 				     struct qed_ptt *p_ptt)
2528 {
2529 	u32 val, wr_mbs, cache_line_size;
2530 
2531 	val = qed_rd(p_hwfn, p_ptt, PSWRQ2_REG_WR_MBS0);
2532 	switch (val) {
2533 	case 0:
2534 		wr_mbs = 128;
2535 		break;
2536 	case 1:
2537 		wr_mbs = 256;
2538 		break;
2539 	case 2:
2540 		wr_mbs = 512;
2541 		break;
2542 	default:
2543 		DP_INFO(p_hwfn,
2544 			"Unexpected value of PSWRQ2_REG_WR_MBS0 [0x%x]. Avoid configuring PGLUE_B_REG_CACHE_LINE_SIZE.\n",
2545 			val);
2546 		return;
2547 	}
2548 
2549 	cache_line_size = min_t(u32, L1_CACHE_BYTES, wr_mbs);
2550 	switch (cache_line_size) {
2551 	case 32:
2552 		val = 0;
2553 		break;
2554 	case 64:
2555 		val = 1;
2556 		break;
2557 	case 128:
2558 		val = 2;
2559 		break;
2560 	case 256:
2561 		val = 3;
2562 		break;
2563 	default:
2564 		DP_INFO(p_hwfn,
2565 			"Unexpected value of cache line size [0x%x]. Avoid configuring PGLUE_B_REG_CACHE_LINE_SIZE.\n",
2566 			cache_line_size);
2567 	}
2568 
2569 	if (L1_CACHE_BYTES > wr_mbs)
2570 		DP_INFO(p_hwfn,
2571 			"The cache line size for padding is suboptimal for performance [OS cache line size 0x%x, wr mbs 0x%x]\n",
2572 			L1_CACHE_BYTES, wr_mbs);
2573 
2574 	STORE_RT_REG(p_hwfn, PGLUE_REG_B_CACHE_LINE_SIZE_RT_OFFSET, val);
2575 	if (val > 0) {
2576 		STORE_RT_REG(p_hwfn, PSWRQ2_REG_DRAM_ALIGN_WR_RT_OFFSET, val);
2577 		STORE_RT_REG(p_hwfn, PSWRQ2_REG_DRAM_ALIGN_RD_RT_OFFSET, val);
2578 	}
2579 }
2580 
qed_hw_init_common(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,int hw_mode)2581 static int qed_hw_init_common(struct qed_hwfn *p_hwfn,
2582 			      struct qed_ptt *p_ptt, int hw_mode)
2583 {
2584 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
2585 	struct qed_qm_common_rt_init_params params;
2586 	struct qed_dev *cdev = p_hwfn->cdev;
2587 	u8 vf_id, max_num_vfs;
2588 	u16 num_pfs, pf_id;
2589 	u32 concrete_fid;
2590 	int rc = 0;
2591 
2592 	qed_init_cau_rt_data(cdev);
2593 
2594 	/* Program GTT windows */
2595 	qed_gtt_init(p_hwfn);
2596 
2597 	if (p_hwfn->mcp_info) {
2598 		if (p_hwfn->mcp_info->func_info.bandwidth_max)
2599 			qm_info->pf_rl_en = true;
2600 		if (p_hwfn->mcp_info->func_info.bandwidth_min)
2601 			qm_info->pf_wfq_en = true;
2602 	}
2603 
2604 	memset(&params, 0, sizeof(params));
2605 	params.max_ports_per_engine = p_hwfn->cdev->num_ports_in_engine;
2606 	params.max_phys_tcs_per_port = qm_info->max_phys_tcs_per_port;
2607 	params.pf_rl_en = qm_info->pf_rl_en;
2608 	params.pf_wfq_en = qm_info->pf_wfq_en;
2609 	params.global_rl_en = qm_info->vport_rl_en;
2610 	params.vport_wfq_en = qm_info->vport_wfq_en;
2611 	params.port_params = qm_info->qm_port_params;
2612 
2613 	qed_qm_common_rt_init(p_hwfn, &params);
2614 
2615 	qed_cxt_hw_init_common(p_hwfn);
2616 
2617 	qed_init_cache_line_size(p_hwfn, p_ptt);
2618 
2619 	rc = qed_init_run(p_hwfn, p_ptt, PHASE_ENGINE, ANY_PHASE_ID, hw_mode);
2620 	if (rc)
2621 		return rc;
2622 
2623 	qed_wr(p_hwfn, p_ptt, PSWRQ2_REG_L2P_VALIDATE_VFID, 0);
2624 	qed_wr(p_hwfn, p_ptt, PGLUE_B_REG_USE_CLIENTID_IN_TAG, 1);
2625 
2626 	if (QED_IS_BB(p_hwfn->cdev)) {
2627 		num_pfs = NUM_OF_ENG_PFS(p_hwfn->cdev);
2628 		for (pf_id = 0; pf_id < num_pfs; pf_id++) {
2629 			qed_fid_pretend(p_hwfn, p_ptt, pf_id);
2630 			qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_ROCE, 0x0);
2631 			qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_TCP, 0x0);
2632 		}
2633 		/* pretend to original PF */
2634 		qed_fid_pretend(p_hwfn, p_ptt, p_hwfn->rel_pf_id);
2635 	}
2636 
2637 	max_num_vfs = QED_IS_AH(cdev) ? MAX_NUM_VFS_K2 : MAX_NUM_VFS_BB;
2638 	for (vf_id = 0; vf_id < max_num_vfs; vf_id++) {
2639 		concrete_fid = qed_vfid_to_concrete(p_hwfn, vf_id);
2640 		qed_fid_pretend(p_hwfn, p_ptt, (u16) concrete_fid);
2641 		qed_wr(p_hwfn, p_ptt, CCFC_REG_STRONG_ENABLE_VF, 0x1);
2642 		qed_wr(p_hwfn, p_ptt, CCFC_REG_WEAK_ENABLE_VF, 0x0);
2643 		qed_wr(p_hwfn, p_ptt, TCFC_REG_STRONG_ENABLE_VF, 0x1);
2644 		qed_wr(p_hwfn, p_ptt, TCFC_REG_WEAK_ENABLE_VF, 0x0);
2645 	}
2646 	/* pretend to original PF */
2647 	qed_fid_pretend(p_hwfn, p_ptt, p_hwfn->rel_pf_id);
2648 
2649 	return rc;
2650 }
2651 
2652 static int
qed_hw_init_dpi_size(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u32 pwm_region_size,u32 n_cpus)2653 qed_hw_init_dpi_size(struct qed_hwfn *p_hwfn,
2654 		     struct qed_ptt *p_ptt, u32 pwm_region_size, u32 n_cpus)
2655 {
2656 	u32 dpi_bit_shift, dpi_count, dpi_page_size;
2657 	u32 min_dpis;
2658 	u32 n_wids;
2659 
2660 	/* Calculate DPI size */
2661 	n_wids = max_t(u32, QED_MIN_WIDS, n_cpus);
2662 	dpi_page_size = QED_WID_SIZE * roundup_pow_of_two(n_wids);
2663 	dpi_page_size = (dpi_page_size + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1);
2664 	dpi_bit_shift = ilog2(dpi_page_size / 4096);
2665 	dpi_count = pwm_region_size / dpi_page_size;
2666 
2667 	min_dpis = p_hwfn->pf_params.rdma_pf_params.min_dpis;
2668 	min_dpis = max_t(u32, QED_MIN_DPIS, min_dpis);
2669 
2670 	p_hwfn->dpi_size = dpi_page_size;
2671 	p_hwfn->dpi_count = dpi_count;
2672 
2673 	qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_DPI_BIT_SHIFT, dpi_bit_shift);
2674 
2675 	if (dpi_count < min_dpis)
2676 		return -EINVAL;
2677 
2678 	return 0;
2679 }
2680 
2681 enum QED_ROCE_EDPM_MODE {
2682 	QED_ROCE_EDPM_MODE_ENABLE = 0,
2683 	QED_ROCE_EDPM_MODE_FORCE_ON = 1,
2684 	QED_ROCE_EDPM_MODE_DISABLE = 2,
2685 };
2686 
qed_edpm_enabled(struct qed_hwfn * p_hwfn)2687 bool qed_edpm_enabled(struct qed_hwfn *p_hwfn)
2688 {
2689 	if (p_hwfn->dcbx_no_edpm || p_hwfn->db_bar_no_edpm)
2690 		return false;
2691 
2692 	return true;
2693 }
2694 
2695 static int
qed_hw_init_pf_doorbell_bar(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)2696 qed_hw_init_pf_doorbell_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
2697 {
2698 	u32 pwm_regsize, norm_regsize;
2699 	u32 non_pwm_conn, min_addr_reg1;
2700 	u32 db_bar_size, n_cpus = 1;
2701 	u32 roce_edpm_mode;
2702 	u32 pf_dems_shift;
2703 	int rc = 0;
2704 	u8 cond;
2705 
2706 	db_bar_size = qed_hw_bar_size(p_hwfn, p_ptt, BAR_ID_1);
2707 	if (p_hwfn->cdev->num_hwfns > 1)
2708 		db_bar_size /= 2;
2709 
2710 	/* Calculate doorbell regions */
2711 	non_pwm_conn = qed_cxt_get_proto_cid_start(p_hwfn, PROTOCOLID_CORE) +
2712 		       qed_cxt_get_proto_cid_count(p_hwfn, PROTOCOLID_CORE,
2713 						   NULL) +
2714 		       qed_cxt_get_proto_cid_count(p_hwfn, PROTOCOLID_ETH,
2715 						   NULL);
2716 	norm_regsize = roundup(QED_PF_DEMS_SIZE * non_pwm_conn, PAGE_SIZE);
2717 	min_addr_reg1 = norm_regsize / 4096;
2718 	pwm_regsize = db_bar_size - norm_regsize;
2719 
2720 	/* Check that the normal and PWM sizes are valid */
2721 	if (db_bar_size < norm_regsize) {
2722 		DP_ERR(p_hwfn->cdev,
2723 		       "Doorbell BAR size 0x%x is too small (normal region is 0x%0x )\n",
2724 		       db_bar_size, norm_regsize);
2725 		return -EINVAL;
2726 	}
2727 
2728 	if (pwm_regsize < QED_MIN_PWM_REGION) {
2729 		DP_ERR(p_hwfn->cdev,
2730 		       "PWM region size 0x%0x is too small. Should be at least 0x%0x (Doorbell BAR size is 0x%x and normal region size is 0x%0x)\n",
2731 		       pwm_regsize,
2732 		       QED_MIN_PWM_REGION, db_bar_size, norm_regsize);
2733 		return -EINVAL;
2734 	}
2735 
2736 	/* Calculate number of DPIs */
2737 	roce_edpm_mode = p_hwfn->pf_params.rdma_pf_params.roce_edpm_mode;
2738 	if ((roce_edpm_mode == QED_ROCE_EDPM_MODE_ENABLE) ||
2739 	    ((roce_edpm_mode == QED_ROCE_EDPM_MODE_FORCE_ON))) {
2740 		/* Either EDPM is mandatory, or we are attempting to allocate a
2741 		 * WID per CPU.
2742 		 */
2743 		n_cpus = num_present_cpus();
2744 		rc = qed_hw_init_dpi_size(p_hwfn, p_ptt, pwm_regsize, n_cpus);
2745 	}
2746 
2747 	cond = (rc && (roce_edpm_mode == QED_ROCE_EDPM_MODE_ENABLE)) ||
2748 	       (roce_edpm_mode == QED_ROCE_EDPM_MODE_DISABLE);
2749 	if (cond || p_hwfn->dcbx_no_edpm) {
2750 		/* Either EDPM is disabled from user configuration, or it is
2751 		 * disabled via DCBx, or it is not mandatory and we failed to
2752 		 * allocated a WID per CPU.
2753 		 */
2754 		n_cpus = 1;
2755 		rc = qed_hw_init_dpi_size(p_hwfn, p_ptt, pwm_regsize, n_cpus);
2756 
2757 		if (cond)
2758 			qed_rdma_dpm_bar(p_hwfn, p_ptt);
2759 	}
2760 
2761 	p_hwfn->wid_count = (u16) n_cpus;
2762 
2763 	DP_INFO(p_hwfn,
2764 		"doorbell bar: normal_region_size=%d, pwm_region_size=%d, dpi_size=%d, dpi_count=%d, roce_edpm=%s, page_size=%lu\n",
2765 		norm_regsize,
2766 		pwm_regsize,
2767 		p_hwfn->dpi_size,
2768 		p_hwfn->dpi_count,
2769 		(!qed_edpm_enabled(p_hwfn)) ?
2770 		"disabled" : "enabled", PAGE_SIZE);
2771 
2772 	if (rc) {
2773 		DP_ERR(p_hwfn,
2774 		       "Failed to allocate enough DPIs. Allocated %d but the current minimum is %d.\n",
2775 		       p_hwfn->dpi_count,
2776 		       p_hwfn->pf_params.rdma_pf_params.min_dpis);
2777 		return -EINVAL;
2778 	}
2779 
2780 	p_hwfn->dpi_start_offset = norm_regsize;
2781 
2782 	/* DEMS size is configured log2 of DWORDs, hence the division by 4 */
2783 	pf_dems_shift = ilog2(QED_PF_DEMS_SIZE / 4);
2784 	qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_ICID_BIT_SHIFT_NORM, pf_dems_shift);
2785 	qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_MIN_ADDR_REG1, min_addr_reg1);
2786 
2787 	return 0;
2788 }
2789 
qed_hw_init_port(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,int hw_mode)2790 static int qed_hw_init_port(struct qed_hwfn *p_hwfn,
2791 			    struct qed_ptt *p_ptt, int hw_mode)
2792 {
2793 	int rc = 0;
2794 
2795 	/* In CMT the gate should be cleared by the 2nd hwfn */
2796 	if (!QED_IS_CMT(p_hwfn->cdev) || !IS_LEAD_HWFN(p_hwfn))
2797 		STORE_RT_REG(p_hwfn, NIG_REG_BRB_GATE_DNTFWD_PORT_RT_OFFSET, 0);
2798 
2799 	rc = qed_init_run(p_hwfn, p_ptt, PHASE_PORT, p_hwfn->port_id, hw_mode);
2800 	if (rc)
2801 		return rc;
2802 
2803 	qed_wr(p_hwfn, p_ptt, PGLUE_B_REG_MASTER_WRITE_PAD_ENABLE, 0);
2804 
2805 	return 0;
2806 }
2807 
qed_hw_init_pf(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,struct qed_tunnel_info * p_tunn,int hw_mode,bool b_hw_start,enum qed_int_mode int_mode,bool allow_npar_tx_switch)2808 static int qed_hw_init_pf(struct qed_hwfn *p_hwfn,
2809 			  struct qed_ptt *p_ptt,
2810 			  struct qed_tunnel_info *p_tunn,
2811 			  int hw_mode,
2812 			  bool b_hw_start,
2813 			  enum qed_int_mode int_mode,
2814 			  bool allow_npar_tx_switch)
2815 {
2816 	u8 rel_pf_id = p_hwfn->rel_pf_id;
2817 	int rc = 0;
2818 
2819 	if (p_hwfn->mcp_info) {
2820 		struct qed_mcp_function_info *p_info;
2821 
2822 		p_info = &p_hwfn->mcp_info->func_info;
2823 		if (p_info->bandwidth_min)
2824 			p_hwfn->qm_info.pf_wfq = p_info->bandwidth_min;
2825 
2826 		/* Update rate limit once we'll actually have a link */
2827 		p_hwfn->qm_info.pf_rl = 100000;
2828 	}
2829 
2830 	qed_cxt_hw_init_pf(p_hwfn, p_ptt);
2831 
2832 	qed_int_igu_init_rt(p_hwfn);
2833 
2834 	/* Set VLAN in NIG if needed */
2835 	if (hw_mode & BIT(MODE_MF_SD)) {
2836 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW, "Configuring LLH_FUNC_TAG\n");
2837 		STORE_RT_REG(p_hwfn, NIG_REG_LLH_FUNC_TAG_EN_RT_OFFSET, 1);
2838 		STORE_RT_REG(p_hwfn, NIG_REG_LLH_FUNC_TAG_VALUE_RT_OFFSET,
2839 			     p_hwfn->hw_info.ovlan);
2840 
2841 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
2842 			   "Configuring LLH_FUNC_FILTER_HDR_SEL\n");
2843 		STORE_RT_REG(p_hwfn, NIG_REG_LLH_FUNC_FILTER_HDR_SEL_RT_OFFSET,
2844 			     1);
2845 	}
2846 
2847 	/* Enable classification by MAC if needed */
2848 	if (hw_mode & BIT(MODE_MF_SI)) {
2849 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
2850 			   "Configuring TAGMAC_CLS_TYPE\n");
2851 		STORE_RT_REG(p_hwfn,
2852 			     NIG_REG_LLH_FUNC_TAGMAC_CLS_TYPE_RT_OFFSET, 1);
2853 	}
2854 
2855 	/* Protocol Configuration */
2856 	STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_TCP_RT_OFFSET,
2857 		     (p_hwfn->hw_info.personality == QED_PCI_ISCSI) ? 1 : 0);
2858 	STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_FCOE_RT_OFFSET,
2859 		     (p_hwfn->hw_info.personality == QED_PCI_FCOE) ? 1 : 0);
2860 	STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_ROCE_RT_OFFSET, 0);
2861 
2862 	/* Sanity check before the PF init sequence that uses DMAE */
2863 	rc = qed_dmae_sanity(p_hwfn, p_ptt, "pf_phase");
2864 	if (rc)
2865 		return rc;
2866 
2867 	/* PF Init sequence */
2868 	rc = qed_init_run(p_hwfn, p_ptt, PHASE_PF, rel_pf_id, hw_mode);
2869 	if (rc)
2870 		return rc;
2871 
2872 	/* QM_PF Init sequence (may be invoked separately e.g. for DCB) */
2873 	rc = qed_init_run(p_hwfn, p_ptt, PHASE_QM_PF, rel_pf_id, hw_mode);
2874 	if (rc)
2875 		return rc;
2876 
2877 	qed_fw_overlay_init_ram(p_hwfn, p_ptt, p_hwfn->fw_overlay_mem);
2878 
2879 	/* Pure runtime initializations - directly to the HW  */
2880 	qed_int_igu_init_pure_rt(p_hwfn, p_ptt, true, true);
2881 
2882 	rc = qed_hw_init_pf_doorbell_bar(p_hwfn, p_ptt);
2883 	if (rc)
2884 		return rc;
2885 
2886 	/* Use the leading hwfn since in CMT only NIG #0 is operational */
2887 	if (IS_LEAD_HWFN(p_hwfn)) {
2888 		rc = qed_llh_hw_init_pf(p_hwfn, p_ptt);
2889 		if (rc)
2890 			return rc;
2891 	}
2892 
2893 	if (b_hw_start) {
2894 		/* enable interrupts */
2895 		qed_int_igu_enable(p_hwfn, p_ptt, int_mode);
2896 
2897 		/* send function start command */
2898 		rc = qed_sp_pf_start(p_hwfn, p_ptt, p_tunn,
2899 				     allow_npar_tx_switch);
2900 		if (rc) {
2901 			DP_NOTICE(p_hwfn, "Function start ramrod failed\n");
2902 			return rc;
2903 		}
2904 		if (p_hwfn->hw_info.personality == QED_PCI_FCOE) {
2905 			qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_TAG1, BIT(2));
2906 			qed_wr(p_hwfn, p_ptt,
2907 			       PRS_REG_PKT_LEN_STAT_TAGS_NOT_COUNTED_FIRST,
2908 			       0x100);
2909 		}
2910 	}
2911 	return rc;
2912 }
2913 
qed_pglueb_set_pfid_enable(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,bool b_enable)2914 int qed_pglueb_set_pfid_enable(struct qed_hwfn *p_hwfn,
2915 			       struct qed_ptt *p_ptt, bool b_enable)
2916 {
2917 	u32 delay_idx = 0, val, set_val = b_enable ? 1 : 0;
2918 
2919 	/* Configure the PF's internal FID_enable for master transactions */
2920 	qed_wr(p_hwfn, p_ptt, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER, set_val);
2921 
2922 	/* Wait until value is set - try for 1 second every 50us */
2923 	for (delay_idx = 0; delay_idx < 20000; delay_idx++) {
2924 		val = qed_rd(p_hwfn, p_ptt,
2925 			     PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER);
2926 		if (val == set_val)
2927 			break;
2928 
2929 		usleep_range(50, 60);
2930 	}
2931 
2932 	if (val != set_val) {
2933 		DP_NOTICE(p_hwfn,
2934 			  "PFID_ENABLE_MASTER wasn't changed after a second\n");
2935 		return -EAGAIN;
2936 	}
2937 
2938 	return 0;
2939 }
2940 
qed_reset_mb_shadow(struct qed_hwfn * p_hwfn,struct qed_ptt * p_main_ptt)2941 static void qed_reset_mb_shadow(struct qed_hwfn *p_hwfn,
2942 				struct qed_ptt *p_main_ptt)
2943 {
2944 	/* Read shadow of current MFW mailbox */
2945 	qed_mcp_read_mb(p_hwfn, p_main_ptt);
2946 	memcpy(p_hwfn->mcp_info->mfw_mb_shadow,
2947 	       p_hwfn->mcp_info->mfw_mb_cur, p_hwfn->mcp_info->mfw_mb_length);
2948 }
2949 
2950 static void
qed_fill_load_req_params(struct qed_load_req_params * p_load_req,struct qed_drv_load_params * p_drv_load)2951 qed_fill_load_req_params(struct qed_load_req_params *p_load_req,
2952 			 struct qed_drv_load_params *p_drv_load)
2953 {
2954 	memset(p_load_req, 0, sizeof(*p_load_req));
2955 
2956 	p_load_req->drv_role = p_drv_load->is_crash_kernel ?
2957 			       QED_DRV_ROLE_KDUMP : QED_DRV_ROLE_OS;
2958 	p_load_req->timeout_val = p_drv_load->mfw_timeout_val;
2959 	p_load_req->avoid_eng_reset = p_drv_load->avoid_eng_reset;
2960 	p_load_req->override_force_load = p_drv_load->override_force_load;
2961 }
2962 
qed_vf_start(struct qed_hwfn * p_hwfn,struct qed_hw_init_params * p_params)2963 static int qed_vf_start(struct qed_hwfn *p_hwfn,
2964 			struct qed_hw_init_params *p_params)
2965 {
2966 	if (p_params->p_tunn) {
2967 		qed_vf_set_vf_start_tunn_update_param(p_params->p_tunn);
2968 		qed_vf_pf_tunnel_param_update(p_hwfn, p_params->p_tunn);
2969 	}
2970 
2971 	p_hwfn->b_int_enabled = true;
2972 
2973 	return 0;
2974 }
2975 
qed_pglueb_clear_err(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)2976 static void qed_pglueb_clear_err(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
2977 {
2978 	qed_wr(p_hwfn, p_ptt, PGLUE_B_REG_WAS_ERROR_PF_31_0_CLR,
2979 	       BIT(p_hwfn->abs_pf_id));
2980 }
2981 
qed_hw_init(struct qed_dev * cdev,struct qed_hw_init_params * p_params)2982 int qed_hw_init(struct qed_dev *cdev, struct qed_hw_init_params *p_params)
2983 {
2984 	struct qed_load_req_params load_req_params;
2985 	u32 load_code, resp, param, drv_mb_param;
2986 	bool b_default_mtu = true;
2987 	struct qed_hwfn *p_hwfn;
2988 	const u32 *fw_overlays;
2989 	u32 fw_overlays_len;
2990 	u16 ether_type;
2991 	int rc = 0, i;
2992 
2993 	if ((p_params->int_mode == QED_INT_MODE_MSI) && (cdev->num_hwfns > 1)) {
2994 		DP_NOTICE(cdev, "MSI mode is not supported for CMT devices\n");
2995 		return -EINVAL;
2996 	}
2997 
2998 	if (IS_PF(cdev)) {
2999 		rc = qed_init_fw_data(cdev, p_params->bin_fw_data);
3000 		if (rc)
3001 			return rc;
3002 	}
3003 
3004 	for_each_hwfn(cdev, i) {
3005 		p_hwfn = &cdev->hwfns[i];
3006 
3007 		/* If management didn't provide a default, set one of our own */
3008 		if (!p_hwfn->hw_info.mtu) {
3009 			p_hwfn->hw_info.mtu = 1500;
3010 			b_default_mtu = false;
3011 		}
3012 
3013 		if (IS_VF(cdev)) {
3014 			qed_vf_start(p_hwfn, p_params);
3015 			continue;
3016 		}
3017 
3018 		rc = qed_calc_hw_mode(p_hwfn);
3019 		if (rc)
3020 			return rc;
3021 
3022 		if (IS_PF(cdev) && (test_bit(QED_MF_8021Q_TAGGING,
3023 					     &cdev->mf_bits) ||
3024 				    test_bit(QED_MF_8021AD_TAGGING,
3025 					     &cdev->mf_bits))) {
3026 			if (test_bit(QED_MF_8021Q_TAGGING, &cdev->mf_bits))
3027 				ether_type = ETH_P_8021Q;
3028 			else
3029 				ether_type = ETH_P_8021AD;
3030 			STORE_RT_REG(p_hwfn, PRS_REG_TAG_ETHERTYPE_0_RT_OFFSET,
3031 				     ether_type);
3032 			STORE_RT_REG(p_hwfn, NIG_REG_TAG_ETHERTYPE_0_RT_OFFSET,
3033 				     ether_type);
3034 			STORE_RT_REG(p_hwfn, PBF_REG_TAG_ETHERTYPE_0_RT_OFFSET,
3035 				     ether_type);
3036 			STORE_RT_REG(p_hwfn, DORQ_REG_TAG1_ETHERTYPE_RT_OFFSET,
3037 				     ether_type);
3038 		}
3039 
3040 		qed_fill_load_req_params(&load_req_params,
3041 					 p_params->p_drv_load_params);
3042 		rc = qed_mcp_load_req(p_hwfn, p_hwfn->p_main_ptt,
3043 				      &load_req_params);
3044 		if (rc) {
3045 			DP_NOTICE(p_hwfn, "Failed sending a LOAD_REQ command\n");
3046 			return rc;
3047 		}
3048 
3049 		load_code = load_req_params.load_code;
3050 		DP_VERBOSE(p_hwfn, QED_MSG_SP,
3051 			   "Load request was sent. Load code: 0x%x\n",
3052 			   load_code);
3053 
3054 		/* Only relevant for recovery:
3055 		 * Clear the indication after LOAD_REQ is responded by the MFW.
3056 		 */
3057 		cdev->recov_in_prog = false;
3058 
3059 		qed_mcp_set_capabilities(p_hwfn, p_hwfn->p_main_ptt);
3060 
3061 		qed_reset_mb_shadow(p_hwfn, p_hwfn->p_main_ptt);
3062 
3063 		/* Clean up chip from previous driver if such remains exist.
3064 		 * This is not needed when the PF is the first one on the
3065 		 * engine, since afterwards we are going to init the FW.
3066 		 */
3067 		if (load_code != FW_MSG_CODE_DRV_LOAD_ENGINE) {
3068 			rc = qed_final_cleanup(p_hwfn, p_hwfn->p_main_ptt,
3069 					       p_hwfn->rel_pf_id, false);
3070 			if (rc) {
3071 				qed_hw_err_notify(p_hwfn, p_hwfn->p_main_ptt,
3072 						  QED_HW_ERR_RAMROD_FAIL,
3073 						  "Final cleanup failed\n");
3074 				goto load_err;
3075 			}
3076 		}
3077 
3078 		/* Log and clear previous pglue_b errors if such exist */
3079 		qed_pglueb_rbc_attn_handler(p_hwfn, p_hwfn->p_main_ptt, true);
3080 
3081 		/* Enable the PF's internal FID_enable in the PXP */
3082 		rc = qed_pglueb_set_pfid_enable(p_hwfn, p_hwfn->p_main_ptt,
3083 						true);
3084 		if (rc)
3085 			goto load_err;
3086 
3087 		/* Clear the pglue_b was_error indication.
3088 		 * In E4 it must be done after the BME and the internal
3089 		 * FID_enable for the PF are set, since VDMs may cause the
3090 		 * indication to be set again.
3091 		 */
3092 		qed_pglueb_clear_err(p_hwfn, p_hwfn->p_main_ptt);
3093 
3094 		fw_overlays = cdev->fw_data->fw_overlays;
3095 		fw_overlays_len = cdev->fw_data->fw_overlays_len;
3096 		p_hwfn->fw_overlay_mem =
3097 		    qed_fw_overlay_mem_alloc(p_hwfn, fw_overlays,
3098 					     fw_overlays_len);
3099 		if (!p_hwfn->fw_overlay_mem) {
3100 			DP_NOTICE(p_hwfn,
3101 				  "Failed to allocate fw overlay memory\n");
3102 			rc = -ENOMEM;
3103 			goto load_err;
3104 		}
3105 
3106 		switch (load_code) {
3107 		case FW_MSG_CODE_DRV_LOAD_ENGINE:
3108 			rc = qed_hw_init_common(p_hwfn, p_hwfn->p_main_ptt,
3109 						p_hwfn->hw_info.hw_mode);
3110 			if (rc)
3111 				break;
3112 			fallthrough;
3113 		case FW_MSG_CODE_DRV_LOAD_PORT:
3114 			rc = qed_hw_init_port(p_hwfn, p_hwfn->p_main_ptt,
3115 					      p_hwfn->hw_info.hw_mode);
3116 			if (rc)
3117 				break;
3118 
3119 			fallthrough;
3120 		case FW_MSG_CODE_DRV_LOAD_FUNCTION:
3121 			rc = qed_hw_init_pf(p_hwfn, p_hwfn->p_main_ptt,
3122 					    p_params->p_tunn,
3123 					    p_hwfn->hw_info.hw_mode,
3124 					    p_params->b_hw_start,
3125 					    p_params->int_mode,
3126 					    p_params->allow_npar_tx_switch);
3127 			break;
3128 		default:
3129 			DP_NOTICE(p_hwfn,
3130 				  "Unexpected load code [0x%08x]", load_code);
3131 			rc = -EINVAL;
3132 			break;
3133 		}
3134 
3135 		if (rc) {
3136 			DP_NOTICE(p_hwfn,
3137 				  "init phase failed for loadcode 0x%x (rc %d)\n",
3138 				  load_code, rc);
3139 			goto load_err;
3140 		}
3141 
3142 		rc = qed_mcp_load_done(p_hwfn, p_hwfn->p_main_ptt);
3143 		if (rc)
3144 			return rc;
3145 
3146 		/* send DCBX attention request command */
3147 		DP_VERBOSE(p_hwfn,
3148 			   QED_MSG_DCB,
3149 			   "sending phony dcbx set command to trigger DCBx attention handling\n");
3150 		rc = qed_mcp_cmd(p_hwfn, p_hwfn->p_main_ptt,
3151 				 DRV_MSG_CODE_SET_DCBX,
3152 				 1 << DRV_MB_PARAM_DCBX_NOTIFY_SHIFT,
3153 				 &resp, &param);
3154 		if (rc) {
3155 			DP_NOTICE(p_hwfn,
3156 				  "Failed to send DCBX attention request\n");
3157 			return rc;
3158 		}
3159 
3160 		p_hwfn->hw_init_done = true;
3161 	}
3162 
3163 	if (IS_PF(cdev)) {
3164 		p_hwfn = QED_LEADING_HWFN(cdev);
3165 
3166 		/* Get pre-negotiated values for stag, bandwidth etc. */
3167 		DP_VERBOSE(p_hwfn,
3168 			   QED_MSG_SPQ,
3169 			   "Sending GET_OEM_UPDATES command to trigger stag/bandwidth attention handling\n");
3170 		drv_mb_param = 1 << DRV_MB_PARAM_DUMMY_OEM_UPDATES_OFFSET;
3171 		rc = qed_mcp_cmd(p_hwfn, p_hwfn->p_main_ptt,
3172 				 DRV_MSG_CODE_GET_OEM_UPDATES,
3173 				 drv_mb_param, &resp, &param);
3174 		if (rc)
3175 			DP_NOTICE(p_hwfn,
3176 				  "Failed to send GET_OEM_UPDATES attention request\n");
3177 
3178 		drv_mb_param = STORM_FW_VERSION;
3179 		rc = qed_mcp_cmd(p_hwfn, p_hwfn->p_main_ptt,
3180 				 DRV_MSG_CODE_OV_UPDATE_STORM_FW_VER,
3181 				 drv_mb_param, &load_code, &param);
3182 		if (rc)
3183 			DP_INFO(p_hwfn, "Failed to update firmware version\n");
3184 
3185 		if (!b_default_mtu) {
3186 			rc = qed_mcp_ov_update_mtu(p_hwfn, p_hwfn->p_main_ptt,
3187 						   p_hwfn->hw_info.mtu);
3188 			if (rc)
3189 				DP_INFO(p_hwfn,
3190 					"Failed to update default mtu\n");
3191 		}
3192 
3193 		rc = qed_mcp_ov_update_driver_state(p_hwfn,
3194 						    p_hwfn->p_main_ptt,
3195 						  QED_OV_DRIVER_STATE_DISABLED);
3196 		if (rc)
3197 			DP_INFO(p_hwfn, "Failed to update driver state\n");
3198 
3199 		rc = qed_mcp_ov_update_eswitch(p_hwfn, p_hwfn->p_main_ptt,
3200 					       QED_OV_ESWITCH_NONE);
3201 		if (rc)
3202 			DP_INFO(p_hwfn, "Failed to update eswitch mode\n");
3203 	}
3204 
3205 	return 0;
3206 
3207 load_err:
3208 	/* The MFW load lock should be released also when initialization fails.
3209 	 */
3210 	qed_mcp_load_done(p_hwfn, p_hwfn->p_main_ptt);
3211 	return rc;
3212 }
3213 
3214 #define QED_HW_STOP_RETRY_LIMIT (10)
qed_hw_timers_stop(struct qed_dev * cdev,struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)3215 static void qed_hw_timers_stop(struct qed_dev *cdev,
3216 			       struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
3217 {
3218 	int i;
3219 
3220 	/* close timers */
3221 	qed_wr(p_hwfn, p_ptt, TM_REG_PF_ENABLE_CONN, 0x0);
3222 	qed_wr(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK, 0x0);
3223 
3224 	if (cdev->recov_in_prog)
3225 		return;
3226 
3227 	for (i = 0; i < QED_HW_STOP_RETRY_LIMIT; i++) {
3228 		if ((!qed_rd(p_hwfn, p_ptt,
3229 			     TM_REG_PF_SCAN_ACTIVE_CONN)) &&
3230 		    (!qed_rd(p_hwfn, p_ptt, TM_REG_PF_SCAN_ACTIVE_TASK)))
3231 			break;
3232 
3233 		/* Dependent on number of connection/tasks, possibly
3234 		 * 1ms sleep is required between polls
3235 		 */
3236 		usleep_range(1000, 2000);
3237 	}
3238 
3239 	if (i < QED_HW_STOP_RETRY_LIMIT)
3240 		return;
3241 
3242 	DP_NOTICE(p_hwfn,
3243 		  "Timers linear scans are not over [Connection %02x Tasks %02x]\n",
3244 		  (u8)qed_rd(p_hwfn, p_ptt, TM_REG_PF_SCAN_ACTIVE_CONN),
3245 		  (u8)qed_rd(p_hwfn, p_ptt, TM_REG_PF_SCAN_ACTIVE_TASK));
3246 }
3247 
qed_hw_timers_stop_all(struct qed_dev * cdev)3248 void qed_hw_timers_stop_all(struct qed_dev *cdev)
3249 {
3250 	int j;
3251 
3252 	for_each_hwfn(cdev, j) {
3253 		struct qed_hwfn *p_hwfn = &cdev->hwfns[j];
3254 		struct qed_ptt *p_ptt = p_hwfn->p_main_ptt;
3255 
3256 		qed_hw_timers_stop(cdev, p_hwfn, p_ptt);
3257 	}
3258 }
3259 
qed_hw_stop(struct qed_dev * cdev)3260 int qed_hw_stop(struct qed_dev *cdev)
3261 {
3262 	struct qed_hwfn *p_hwfn;
3263 	struct qed_ptt *p_ptt;
3264 	int rc, rc2 = 0;
3265 	int j;
3266 
3267 	for_each_hwfn(cdev, j) {
3268 		p_hwfn = &cdev->hwfns[j];
3269 		p_ptt = p_hwfn->p_main_ptt;
3270 
3271 		DP_VERBOSE(p_hwfn, NETIF_MSG_IFDOWN, "Stopping hw/fw\n");
3272 
3273 		if (IS_VF(cdev)) {
3274 			qed_vf_pf_int_cleanup(p_hwfn);
3275 			rc = qed_vf_pf_reset(p_hwfn);
3276 			if (rc) {
3277 				DP_NOTICE(p_hwfn,
3278 					  "qed_vf_pf_reset failed. rc = %d.\n",
3279 					  rc);
3280 				rc2 = -EINVAL;
3281 			}
3282 			continue;
3283 		}
3284 
3285 		/* mark the hw as uninitialized... */
3286 		p_hwfn->hw_init_done = false;
3287 
3288 		/* Send unload command to MCP */
3289 		if (!cdev->recov_in_prog) {
3290 			rc = qed_mcp_unload_req(p_hwfn, p_ptt);
3291 			if (rc) {
3292 				DP_NOTICE(p_hwfn,
3293 					  "Failed sending a UNLOAD_REQ command. rc = %d.\n",
3294 					  rc);
3295 				rc2 = -EINVAL;
3296 			}
3297 		}
3298 
3299 		qed_slowpath_irq_sync(p_hwfn);
3300 
3301 		/* After this point no MFW attentions are expected, e.g. prevent
3302 		 * race between pf stop and dcbx pf update.
3303 		 */
3304 		rc = qed_sp_pf_stop(p_hwfn);
3305 		if (rc) {
3306 			DP_NOTICE(p_hwfn,
3307 				  "Failed to close PF against FW [rc = %d]. Continue to stop HW to prevent illegal host access by the device.\n",
3308 				  rc);
3309 			rc2 = -EINVAL;
3310 		}
3311 
3312 		qed_wr(p_hwfn, p_ptt,
3313 		       NIG_REG_RX_LLH_BRB_GATE_DNTFWD_PERPF, 0x1);
3314 
3315 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_TCP, 0x0);
3316 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_UDP, 0x0);
3317 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_FCOE, 0x0);
3318 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_ROCE, 0x0);
3319 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_OPENFLOW, 0x0);
3320 
3321 		qed_hw_timers_stop(cdev, p_hwfn, p_ptt);
3322 
3323 		/* Disable Attention Generation */
3324 		qed_int_igu_disable_int(p_hwfn, p_ptt);
3325 
3326 		qed_wr(p_hwfn, p_ptt, IGU_REG_LEADING_EDGE_LATCH, 0);
3327 		qed_wr(p_hwfn, p_ptt, IGU_REG_TRAILING_EDGE_LATCH, 0);
3328 
3329 		qed_int_igu_init_pure_rt(p_hwfn, p_ptt, false, true);
3330 
3331 		/* Need to wait 1ms to guarantee SBs are cleared */
3332 		usleep_range(1000, 2000);
3333 
3334 		/* Disable PF in HW blocks */
3335 		qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_DB_ENABLE, 0);
3336 		qed_wr(p_hwfn, p_ptt, QM_REG_PF_EN, 0);
3337 
3338 		if (IS_LEAD_HWFN(p_hwfn) &&
3339 		    test_bit(QED_MF_LLH_MAC_CLSS, &cdev->mf_bits) &&
3340 		    !QED_IS_FCOE_PERSONALITY(p_hwfn))
3341 			qed_llh_remove_mac_filter(cdev, 0,
3342 						  p_hwfn->hw_info.hw_mac_addr);
3343 
3344 		if (!cdev->recov_in_prog) {
3345 			rc = qed_mcp_unload_done(p_hwfn, p_ptt);
3346 			if (rc) {
3347 				DP_NOTICE(p_hwfn,
3348 					  "Failed sending a UNLOAD_DONE command. rc = %d.\n",
3349 					  rc);
3350 				rc2 = -EINVAL;
3351 			}
3352 		}
3353 	}
3354 
3355 	if (IS_PF(cdev) && !cdev->recov_in_prog) {
3356 		p_hwfn = QED_LEADING_HWFN(cdev);
3357 		p_ptt = QED_LEADING_HWFN(cdev)->p_main_ptt;
3358 
3359 		/* Clear the PF's internal FID_enable in the PXP.
3360 		 * In CMT this should only be done for first hw-function, and
3361 		 * only after all transactions have stopped for all active
3362 		 * hw-functions.
3363 		 */
3364 		rc = qed_pglueb_set_pfid_enable(p_hwfn, p_ptt, false);
3365 		if (rc) {
3366 			DP_NOTICE(p_hwfn,
3367 				  "qed_pglueb_set_pfid_enable() failed. rc = %d.\n",
3368 				  rc);
3369 			rc2 = -EINVAL;
3370 		}
3371 	}
3372 
3373 	return rc2;
3374 }
3375 
qed_hw_stop_fastpath(struct qed_dev * cdev)3376 int qed_hw_stop_fastpath(struct qed_dev *cdev)
3377 {
3378 	int j;
3379 
3380 	for_each_hwfn(cdev, j) {
3381 		struct qed_hwfn *p_hwfn = &cdev->hwfns[j];
3382 		struct qed_ptt *p_ptt;
3383 
3384 		if (IS_VF(cdev)) {
3385 			qed_vf_pf_int_cleanup(p_hwfn);
3386 			continue;
3387 		}
3388 		p_ptt = qed_ptt_acquire(p_hwfn);
3389 		if (!p_ptt)
3390 			return -EAGAIN;
3391 
3392 		DP_VERBOSE(p_hwfn,
3393 			   NETIF_MSG_IFDOWN, "Shutting down the fastpath\n");
3394 
3395 		qed_wr(p_hwfn, p_ptt,
3396 		       NIG_REG_RX_LLH_BRB_GATE_DNTFWD_PERPF, 0x1);
3397 
3398 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_TCP, 0x0);
3399 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_UDP, 0x0);
3400 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_FCOE, 0x0);
3401 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_ROCE, 0x0);
3402 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_OPENFLOW, 0x0);
3403 
3404 		qed_int_igu_init_pure_rt(p_hwfn, p_ptt, false, false);
3405 
3406 		/* Need to wait 1ms to guarantee SBs are cleared */
3407 		usleep_range(1000, 2000);
3408 		qed_ptt_release(p_hwfn, p_ptt);
3409 	}
3410 
3411 	return 0;
3412 }
3413 
qed_hw_start_fastpath(struct qed_hwfn * p_hwfn)3414 int qed_hw_start_fastpath(struct qed_hwfn *p_hwfn)
3415 {
3416 	struct qed_ptt *p_ptt;
3417 
3418 	if (IS_VF(p_hwfn->cdev))
3419 		return 0;
3420 
3421 	p_ptt = qed_ptt_acquire(p_hwfn);
3422 	if (!p_ptt)
3423 		return -EAGAIN;
3424 
3425 	if (p_hwfn->p_rdma_info &&
3426 	    p_hwfn->p_rdma_info->active && p_hwfn->b_rdma_enabled_in_prs)
3427 		qed_wr(p_hwfn, p_ptt, p_hwfn->rdma_prs_search_reg, 0x1);
3428 
3429 	/* Re-open incoming traffic */
3430 	qed_wr(p_hwfn, p_ptt, NIG_REG_RX_LLH_BRB_GATE_DNTFWD_PERPF, 0x0);
3431 	qed_ptt_release(p_hwfn, p_ptt);
3432 
3433 	return 0;
3434 }
3435 
3436 /* Free hwfn memory and resources acquired in hw_hwfn_prepare */
qed_hw_hwfn_free(struct qed_hwfn * p_hwfn)3437 static void qed_hw_hwfn_free(struct qed_hwfn *p_hwfn)
3438 {
3439 	qed_ptt_pool_free(p_hwfn);
3440 	kfree(p_hwfn->hw_info.p_igu_info);
3441 	p_hwfn->hw_info.p_igu_info = NULL;
3442 }
3443 
3444 /* Setup bar access */
qed_hw_hwfn_prepare(struct qed_hwfn * p_hwfn)3445 static void qed_hw_hwfn_prepare(struct qed_hwfn *p_hwfn)
3446 {
3447 	/* clear indirect access */
3448 	if (QED_IS_AH(p_hwfn->cdev)) {
3449 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3450 		       PGLUE_B_REG_PGL_ADDR_E8_F0_K2, 0);
3451 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3452 		       PGLUE_B_REG_PGL_ADDR_EC_F0_K2, 0);
3453 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3454 		       PGLUE_B_REG_PGL_ADDR_F0_F0_K2, 0);
3455 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3456 		       PGLUE_B_REG_PGL_ADDR_F4_F0_K2, 0);
3457 	} else {
3458 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3459 		       PGLUE_B_REG_PGL_ADDR_88_F0_BB, 0);
3460 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3461 		       PGLUE_B_REG_PGL_ADDR_8C_F0_BB, 0);
3462 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3463 		       PGLUE_B_REG_PGL_ADDR_90_F0_BB, 0);
3464 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3465 		       PGLUE_B_REG_PGL_ADDR_94_F0_BB, 0);
3466 	}
3467 
3468 	/* Clean previous pglue_b errors if such exist */
3469 	qed_pglueb_clear_err(p_hwfn, p_hwfn->p_main_ptt);
3470 
3471 	/* enable internal target-read */
3472 	qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3473 	       PGLUE_B_REG_INTERNAL_PFID_ENABLE_TARGET_READ, 1);
3474 }
3475 
get_function_id(struct qed_hwfn * p_hwfn)3476 static void get_function_id(struct qed_hwfn *p_hwfn)
3477 {
3478 	/* ME Register */
3479 	p_hwfn->hw_info.opaque_fid = (u16) REG_RD(p_hwfn,
3480 						  PXP_PF_ME_OPAQUE_ADDR);
3481 
3482 	p_hwfn->hw_info.concrete_fid = REG_RD(p_hwfn, PXP_PF_ME_CONCRETE_ADDR);
3483 
3484 	p_hwfn->abs_pf_id = (p_hwfn->hw_info.concrete_fid >> 16) & 0xf;
3485 	p_hwfn->rel_pf_id = GET_FIELD(p_hwfn->hw_info.concrete_fid,
3486 				      PXP_CONCRETE_FID_PFID);
3487 	p_hwfn->port_id = GET_FIELD(p_hwfn->hw_info.concrete_fid,
3488 				    PXP_CONCRETE_FID_PORT);
3489 
3490 	DP_VERBOSE(p_hwfn, NETIF_MSG_PROBE,
3491 		   "Read ME register: Concrete 0x%08x Opaque 0x%04x\n",
3492 		   p_hwfn->hw_info.concrete_fid, p_hwfn->hw_info.opaque_fid);
3493 }
3494 
qed_hw_set_feat(struct qed_hwfn * p_hwfn)3495 static void qed_hw_set_feat(struct qed_hwfn *p_hwfn)
3496 {
3497 	u32 *feat_num = p_hwfn->hw_info.feat_num;
3498 	struct qed_sb_cnt_info sb_cnt;
3499 	u32 non_l2_sbs = 0;
3500 
3501 	memset(&sb_cnt, 0, sizeof(sb_cnt));
3502 	qed_int_get_num_sbs(p_hwfn, &sb_cnt);
3503 
3504 	if (IS_ENABLED(CONFIG_QED_RDMA) &&
3505 	    QED_IS_RDMA_PERSONALITY(p_hwfn)) {
3506 		/* Roce CNQ each requires: 1 status block + 1 CNQ. We divide
3507 		 * the status blocks equally between L2 / RoCE but with
3508 		 * consideration as to how many l2 queues / cnqs we have.
3509 		 */
3510 		feat_num[QED_RDMA_CNQ] =
3511 			min_t(u32, sb_cnt.cnt / 2,
3512 			      RESC_NUM(p_hwfn, QED_RDMA_CNQ_RAM));
3513 
3514 		non_l2_sbs = feat_num[QED_RDMA_CNQ];
3515 	}
3516 	if (QED_IS_L2_PERSONALITY(p_hwfn)) {
3517 		/* Start by allocating VF queues, then PF's */
3518 		feat_num[QED_VF_L2_QUE] = min_t(u32,
3519 						RESC_NUM(p_hwfn, QED_L2_QUEUE),
3520 						sb_cnt.iov_cnt);
3521 		feat_num[QED_PF_L2_QUE] = min_t(u32,
3522 						sb_cnt.cnt - non_l2_sbs,
3523 						RESC_NUM(p_hwfn,
3524 							 QED_L2_QUEUE) -
3525 						FEAT_NUM(p_hwfn,
3526 							 QED_VF_L2_QUE));
3527 	}
3528 
3529 	if (QED_IS_FCOE_PERSONALITY(p_hwfn))
3530 		feat_num[QED_FCOE_CQ] =  min_t(u32, sb_cnt.cnt,
3531 					       RESC_NUM(p_hwfn,
3532 							QED_CMDQS_CQS));
3533 
3534 	if (QED_IS_ISCSI_PERSONALITY(p_hwfn))
3535 		feat_num[QED_ISCSI_CQ] = min_t(u32, sb_cnt.cnt,
3536 					       RESC_NUM(p_hwfn,
3537 							QED_CMDQS_CQS));
3538 	DP_VERBOSE(p_hwfn,
3539 		   NETIF_MSG_PROBE,
3540 		   "#PF_L2_QUEUES=%d VF_L2_QUEUES=%d #ROCE_CNQ=%d FCOE_CQ=%d ISCSI_CQ=%d #SBS=%d\n",
3541 		   (int)FEAT_NUM(p_hwfn, QED_PF_L2_QUE),
3542 		   (int)FEAT_NUM(p_hwfn, QED_VF_L2_QUE),
3543 		   (int)FEAT_NUM(p_hwfn, QED_RDMA_CNQ),
3544 		   (int)FEAT_NUM(p_hwfn, QED_FCOE_CQ),
3545 		   (int)FEAT_NUM(p_hwfn, QED_ISCSI_CQ),
3546 		   (int)sb_cnt.cnt);
3547 }
3548 
qed_hw_get_resc_name(enum qed_resources res_id)3549 const char *qed_hw_get_resc_name(enum qed_resources res_id)
3550 {
3551 	switch (res_id) {
3552 	case QED_L2_QUEUE:
3553 		return "L2_QUEUE";
3554 	case QED_VPORT:
3555 		return "VPORT";
3556 	case QED_RSS_ENG:
3557 		return "RSS_ENG";
3558 	case QED_PQ:
3559 		return "PQ";
3560 	case QED_RL:
3561 		return "RL";
3562 	case QED_MAC:
3563 		return "MAC";
3564 	case QED_VLAN:
3565 		return "VLAN";
3566 	case QED_RDMA_CNQ_RAM:
3567 		return "RDMA_CNQ_RAM";
3568 	case QED_ILT:
3569 		return "ILT";
3570 	case QED_LL2_RAM_QUEUE:
3571 		return "LL2_RAM_QUEUE";
3572 	case QED_LL2_CTX_QUEUE:
3573 		return "LL2_CTX_QUEUE";
3574 	case QED_CMDQS_CQS:
3575 		return "CMDQS_CQS";
3576 	case QED_RDMA_STATS_QUEUE:
3577 		return "RDMA_STATS_QUEUE";
3578 	case QED_BDQ:
3579 		return "BDQ";
3580 	case QED_SB:
3581 		return "SB";
3582 	default:
3583 		return "UNKNOWN_RESOURCE";
3584 	}
3585 }
3586 
3587 static int
__qed_hw_set_soft_resc_size(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,enum qed_resources res_id,u32 resc_max_val,u32 * p_mcp_resp)3588 __qed_hw_set_soft_resc_size(struct qed_hwfn *p_hwfn,
3589 			    struct qed_ptt *p_ptt,
3590 			    enum qed_resources res_id,
3591 			    u32 resc_max_val, u32 *p_mcp_resp)
3592 {
3593 	int rc;
3594 
3595 	rc = qed_mcp_set_resc_max_val(p_hwfn, p_ptt, res_id,
3596 				      resc_max_val, p_mcp_resp);
3597 	if (rc) {
3598 		DP_NOTICE(p_hwfn,
3599 			  "MFW response failure for a max value setting of resource %d [%s]\n",
3600 			  res_id, qed_hw_get_resc_name(res_id));
3601 		return rc;
3602 	}
3603 
3604 	if (*p_mcp_resp != FW_MSG_CODE_RESOURCE_ALLOC_OK)
3605 		DP_INFO(p_hwfn,
3606 			"Failed to set the max value of resource %d [%s]. mcp_resp = 0x%08x.\n",
3607 			res_id, qed_hw_get_resc_name(res_id), *p_mcp_resp);
3608 
3609 	return 0;
3610 }
3611 
3612 static u32 qed_hsi_def_val[][MAX_CHIP_IDS] = {
3613 	{MAX_NUM_VFS_BB, MAX_NUM_VFS_K2},
3614 	{MAX_NUM_L2_QUEUES_BB, MAX_NUM_L2_QUEUES_K2},
3615 	{MAX_NUM_PORTS_BB, MAX_NUM_PORTS_K2},
3616 	{MAX_SB_PER_PATH_BB, MAX_SB_PER_PATH_K2,},
3617 	{MAX_NUM_PFS_BB, MAX_NUM_PFS_K2},
3618 	{MAX_NUM_VPORTS_BB, MAX_NUM_VPORTS_K2},
3619 	{ETH_RSS_ENGINE_NUM_BB, ETH_RSS_ENGINE_NUM_K2},
3620 	{MAX_QM_TX_QUEUES_BB, MAX_QM_TX_QUEUES_K2},
3621 	{PXP_NUM_ILT_RECORDS_BB, PXP_NUM_ILT_RECORDS_K2},
3622 	{RDMA_NUM_STATISTIC_COUNTERS_BB, RDMA_NUM_STATISTIC_COUNTERS_K2},
3623 	{MAX_QM_GLOBAL_RLS, MAX_QM_GLOBAL_RLS},
3624 	{PBF_MAX_CMD_LINES, PBF_MAX_CMD_LINES},
3625 	{BTB_MAX_BLOCKS_BB, BTB_MAX_BLOCKS_K2},
3626 };
3627 
qed_get_hsi_def_val(struct qed_dev * cdev,enum qed_hsi_def_type type)3628 u32 qed_get_hsi_def_val(struct qed_dev *cdev, enum qed_hsi_def_type type)
3629 {
3630 	enum chip_ids chip_id = QED_IS_BB(cdev) ? CHIP_BB : CHIP_K2;
3631 
3632 	if (type >= QED_NUM_HSI_DEFS) {
3633 		DP_ERR(cdev, "Unexpected HSI definition type [%d]\n", type);
3634 		return 0;
3635 	}
3636 
3637 	return qed_hsi_def_val[type][chip_id];
3638 }
3639 static int
qed_hw_set_soft_resc_size(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)3640 qed_hw_set_soft_resc_size(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
3641 {
3642 	u32 resc_max_val, mcp_resp;
3643 	u8 res_id;
3644 	int rc;
3645 	for (res_id = 0; res_id < QED_MAX_RESC; res_id++) {
3646 		switch (res_id) {
3647 		case QED_LL2_RAM_QUEUE:
3648 			resc_max_val = MAX_NUM_LL2_RX_RAM_QUEUES;
3649 			break;
3650 		case QED_LL2_CTX_QUEUE:
3651 			resc_max_val = MAX_NUM_LL2_RX_CTX_QUEUES;
3652 			break;
3653 		case QED_RDMA_CNQ_RAM:
3654 			/* No need for a case for QED_CMDQS_CQS since
3655 			 * CNQ/CMDQS are the same resource.
3656 			 */
3657 			resc_max_val = NUM_OF_GLOBAL_QUEUES;
3658 			break;
3659 		case QED_RDMA_STATS_QUEUE:
3660 			resc_max_val =
3661 			    NUM_OF_RDMA_STATISTIC_COUNTERS(p_hwfn->cdev);
3662 			break;
3663 		case QED_BDQ:
3664 			resc_max_val = BDQ_NUM_RESOURCES;
3665 			break;
3666 		default:
3667 			continue;
3668 		}
3669 
3670 		rc = __qed_hw_set_soft_resc_size(p_hwfn, p_ptt, res_id,
3671 						 resc_max_val, &mcp_resp);
3672 		if (rc)
3673 			return rc;
3674 
3675 		/* There's no point to continue to the next resource if the
3676 		 * command is not supported by the MFW.
3677 		 * We do continue if the command is supported but the resource
3678 		 * is unknown to the MFW. Such a resource will be later
3679 		 * configured with the default allocation values.
3680 		 */
3681 		if (mcp_resp == FW_MSG_CODE_UNSUPPORTED)
3682 			return -EINVAL;
3683 	}
3684 
3685 	return 0;
3686 }
3687 
3688 static
qed_hw_get_dflt_resc(struct qed_hwfn * p_hwfn,enum qed_resources res_id,u32 * p_resc_num,u32 * p_resc_start)3689 int qed_hw_get_dflt_resc(struct qed_hwfn *p_hwfn,
3690 			 enum qed_resources res_id,
3691 			 u32 *p_resc_num, u32 *p_resc_start)
3692 {
3693 	u8 num_funcs = p_hwfn->num_funcs_on_engine;
3694 	struct qed_dev *cdev = p_hwfn->cdev;
3695 
3696 	switch (res_id) {
3697 	case QED_L2_QUEUE:
3698 		*p_resc_num = NUM_OF_L2_QUEUES(cdev) / num_funcs;
3699 		break;
3700 	case QED_VPORT:
3701 		*p_resc_num = NUM_OF_VPORTS(cdev) / num_funcs;
3702 		break;
3703 	case QED_RSS_ENG:
3704 		*p_resc_num = NUM_OF_RSS_ENGINES(cdev) / num_funcs;
3705 		break;
3706 	case QED_PQ:
3707 		*p_resc_num = NUM_OF_QM_TX_QUEUES(cdev) / num_funcs;
3708 		*p_resc_num &= ~0x7;	/* The granularity of the PQs is 8 */
3709 		break;
3710 	case QED_RL:
3711 		*p_resc_num = NUM_OF_QM_GLOBAL_RLS(cdev) / num_funcs;
3712 		break;
3713 	case QED_MAC:
3714 	case QED_VLAN:
3715 		/* Each VFC resource can accommodate both a MAC and a VLAN */
3716 		*p_resc_num = ETH_NUM_MAC_FILTERS / num_funcs;
3717 		break;
3718 	case QED_ILT:
3719 		*p_resc_num = NUM_OF_PXP_ILT_RECORDS(cdev) / num_funcs;
3720 		break;
3721 	case QED_LL2_RAM_QUEUE:
3722 		*p_resc_num = MAX_NUM_LL2_RX_RAM_QUEUES / num_funcs;
3723 		break;
3724 	case QED_LL2_CTX_QUEUE:
3725 		*p_resc_num = MAX_NUM_LL2_RX_CTX_QUEUES / num_funcs;
3726 		break;
3727 	case QED_RDMA_CNQ_RAM:
3728 	case QED_CMDQS_CQS:
3729 		/* CNQ/CMDQS are the same resource */
3730 		*p_resc_num = NUM_OF_GLOBAL_QUEUES / num_funcs;
3731 		break;
3732 	case QED_RDMA_STATS_QUEUE:
3733 		*p_resc_num = NUM_OF_RDMA_STATISTIC_COUNTERS(cdev) / num_funcs;
3734 		break;
3735 	case QED_BDQ:
3736 		if (p_hwfn->hw_info.personality != QED_PCI_ISCSI &&
3737 		    p_hwfn->hw_info.personality != QED_PCI_FCOE)
3738 			*p_resc_num = 0;
3739 		else
3740 			*p_resc_num = 1;
3741 		break;
3742 	case QED_SB:
3743 		/* Since we want its value to reflect whether MFW supports
3744 		 * the new scheme, have a default of 0.
3745 		 */
3746 		*p_resc_num = 0;
3747 		break;
3748 	default:
3749 		return -EINVAL;
3750 	}
3751 
3752 	switch (res_id) {
3753 	case QED_BDQ:
3754 		if (!*p_resc_num)
3755 			*p_resc_start = 0;
3756 		else if (p_hwfn->cdev->num_ports_in_engine == 4)
3757 			*p_resc_start = p_hwfn->port_id;
3758 		else if (p_hwfn->hw_info.personality == QED_PCI_ISCSI)
3759 			*p_resc_start = p_hwfn->port_id;
3760 		else if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
3761 			*p_resc_start = p_hwfn->port_id + 2;
3762 		break;
3763 	default:
3764 		*p_resc_start = *p_resc_num * p_hwfn->enabled_func_idx;
3765 		break;
3766 	}
3767 
3768 	return 0;
3769 }
3770 
__qed_hw_set_resc_info(struct qed_hwfn * p_hwfn,enum qed_resources res_id)3771 static int __qed_hw_set_resc_info(struct qed_hwfn *p_hwfn,
3772 				  enum qed_resources res_id)
3773 {
3774 	u32 dflt_resc_num = 0, dflt_resc_start = 0;
3775 	u32 mcp_resp, *p_resc_num, *p_resc_start;
3776 	int rc;
3777 
3778 	p_resc_num = &RESC_NUM(p_hwfn, res_id);
3779 	p_resc_start = &RESC_START(p_hwfn, res_id);
3780 
3781 	rc = qed_hw_get_dflt_resc(p_hwfn, res_id, &dflt_resc_num,
3782 				  &dflt_resc_start);
3783 	if (rc) {
3784 		DP_ERR(p_hwfn,
3785 		       "Failed to get default amount for resource %d [%s]\n",
3786 		       res_id, qed_hw_get_resc_name(res_id));
3787 		return rc;
3788 	}
3789 
3790 	rc = qed_mcp_get_resc_info(p_hwfn, p_hwfn->p_main_ptt, res_id,
3791 				   &mcp_resp, p_resc_num, p_resc_start);
3792 	if (rc) {
3793 		DP_NOTICE(p_hwfn,
3794 			  "MFW response failure for an allocation request for resource %d [%s]\n",
3795 			  res_id, qed_hw_get_resc_name(res_id));
3796 		return rc;
3797 	}
3798 
3799 	/* Default driver values are applied in the following cases:
3800 	 * - The resource allocation MB command is not supported by the MFW
3801 	 * - There is an internal error in the MFW while processing the request
3802 	 * - The resource ID is unknown to the MFW
3803 	 */
3804 	if (mcp_resp != FW_MSG_CODE_RESOURCE_ALLOC_OK) {
3805 		DP_INFO(p_hwfn,
3806 			"Failed to receive allocation info for resource %d [%s]. mcp_resp = 0x%x. Applying default values [%d,%d].\n",
3807 			res_id,
3808 			qed_hw_get_resc_name(res_id),
3809 			mcp_resp, dflt_resc_num, dflt_resc_start);
3810 		*p_resc_num = dflt_resc_num;
3811 		*p_resc_start = dflt_resc_start;
3812 		goto out;
3813 	}
3814 
3815 out:
3816 	/* PQs have to divide by 8 [that's the HW granularity].
3817 	 * Reduce number so it would fit.
3818 	 */
3819 	if ((res_id == QED_PQ) && ((*p_resc_num % 8) || (*p_resc_start % 8))) {
3820 		DP_INFO(p_hwfn,
3821 			"PQs need to align by 8; Number %08x --> %08x, Start %08x --> %08x\n",
3822 			*p_resc_num,
3823 			(*p_resc_num) & ~0x7,
3824 			*p_resc_start, (*p_resc_start) & ~0x7);
3825 		*p_resc_num &= ~0x7;
3826 		*p_resc_start &= ~0x7;
3827 	}
3828 
3829 	return 0;
3830 }
3831 
qed_hw_set_resc_info(struct qed_hwfn * p_hwfn)3832 static int qed_hw_set_resc_info(struct qed_hwfn *p_hwfn)
3833 {
3834 	int rc;
3835 	u8 res_id;
3836 
3837 	for (res_id = 0; res_id < QED_MAX_RESC; res_id++) {
3838 		rc = __qed_hw_set_resc_info(p_hwfn, res_id);
3839 		if (rc)
3840 			return rc;
3841 	}
3842 
3843 	return 0;
3844 }
3845 
qed_hw_get_ppfid_bitmap(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)3846 static int qed_hw_get_ppfid_bitmap(struct qed_hwfn *p_hwfn,
3847 				   struct qed_ptt *p_ptt)
3848 {
3849 	struct qed_dev *cdev = p_hwfn->cdev;
3850 	u8 native_ppfid_idx;
3851 	int rc;
3852 
3853 	/* Calculation of BB/AH is different for native_ppfid_idx */
3854 	if (QED_IS_BB(cdev))
3855 		native_ppfid_idx = p_hwfn->rel_pf_id;
3856 	else
3857 		native_ppfid_idx = p_hwfn->rel_pf_id /
3858 		    cdev->num_ports_in_engine;
3859 
3860 	rc = qed_mcp_get_ppfid_bitmap(p_hwfn, p_ptt);
3861 	if (rc != 0 && rc != -EOPNOTSUPP)
3862 		return rc;
3863 	else if (rc == -EOPNOTSUPP)
3864 		cdev->ppfid_bitmap = 0x1 << native_ppfid_idx;
3865 
3866 	if (!(cdev->ppfid_bitmap & (0x1 << native_ppfid_idx))) {
3867 		DP_INFO(p_hwfn,
3868 			"Fix the PPFID bitmap to include the native PPFID [native_ppfid_idx %hhd, orig_bitmap 0x%hhx]\n",
3869 			native_ppfid_idx, cdev->ppfid_bitmap);
3870 		cdev->ppfid_bitmap = 0x1 << native_ppfid_idx;
3871 	}
3872 
3873 	return 0;
3874 }
3875 
qed_hw_get_resc(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)3876 static int qed_hw_get_resc(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
3877 {
3878 	struct qed_resc_unlock_params resc_unlock_params;
3879 	struct qed_resc_lock_params resc_lock_params;
3880 	bool b_ah = QED_IS_AH(p_hwfn->cdev);
3881 	u8 res_id;
3882 	int rc;
3883 
3884 	/* Setting the max values of the soft resources and the following
3885 	 * resources allocation queries should be atomic. Since several PFs can
3886 	 * run in parallel - a resource lock is needed.
3887 	 * If either the resource lock or resource set value commands are not
3888 	 * supported - skip the the max values setting, release the lock if
3889 	 * needed, and proceed to the queries. Other failures, including a
3890 	 * failure to acquire the lock, will cause this function to fail.
3891 	 */
3892 	qed_mcp_resc_lock_default_init(&resc_lock_params, &resc_unlock_params,
3893 				       QED_RESC_LOCK_RESC_ALLOC, false);
3894 
3895 	rc = qed_mcp_resc_lock(p_hwfn, p_ptt, &resc_lock_params);
3896 	if (rc && rc != -EINVAL) {
3897 		return rc;
3898 	} else if (rc == -EINVAL) {
3899 		DP_INFO(p_hwfn,
3900 			"Skip the max values setting of the soft resources since the resource lock is not supported by the MFW\n");
3901 	} else if (!rc && !resc_lock_params.b_granted) {
3902 		DP_NOTICE(p_hwfn,
3903 			  "Failed to acquire the resource lock for the resource allocation commands\n");
3904 		return -EBUSY;
3905 	} else {
3906 		rc = qed_hw_set_soft_resc_size(p_hwfn, p_ptt);
3907 		if (rc && rc != -EINVAL) {
3908 			DP_NOTICE(p_hwfn,
3909 				  "Failed to set the max values of the soft resources\n");
3910 			goto unlock_and_exit;
3911 		} else if (rc == -EINVAL) {
3912 			DP_INFO(p_hwfn,
3913 				"Skip the max values setting of the soft resources since it is not supported by the MFW\n");
3914 			rc = qed_mcp_resc_unlock(p_hwfn, p_ptt,
3915 						 &resc_unlock_params);
3916 			if (rc)
3917 				DP_INFO(p_hwfn,
3918 					"Failed to release the resource lock for the resource allocation commands\n");
3919 		}
3920 	}
3921 
3922 	rc = qed_hw_set_resc_info(p_hwfn);
3923 	if (rc)
3924 		goto unlock_and_exit;
3925 
3926 	if (resc_lock_params.b_granted && !resc_unlock_params.b_released) {
3927 		rc = qed_mcp_resc_unlock(p_hwfn, p_ptt, &resc_unlock_params);
3928 		if (rc)
3929 			DP_INFO(p_hwfn,
3930 				"Failed to release the resource lock for the resource allocation commands\n");
3931 	}
3932 
3933 	/* PPFID bitmap */
3934 	if (IS_LEAD_HWFN(p_hwfn)) {
3935 		rc = qed_hw_get_ppfid_bitmap(p_hwfn, p_ptt);
3936 		if (rc)
3937 			return rc;
3938 	}
3939 
3940 	/* Sanity for ILT */
3941 	if ((b_ah && (RESC_END(p_hwfn, QED_ILT) > PXP_NUM_ILT_RECORDS_K2)) ||
3942 	    (!b_ah && (RESC_END(p_hwfn, QED_ILT) > PXP_NUM_ILT_RECORDS_BB))) {
3943 		DP_NOTICE(p_hwfn, "Can't assign ILT pages [%08x,...,%08x]\n",
3944 			  RESC_START(p_hwfn, QED_ILT),
3945 			  RESC_END(p_hwfn, QED_ILT) - 1);
3946 		return -EINVAL;
3947 	}
3948 
3949 	/* This will also learn the number of SBs from MFW */
3950 	if (qed_int_igu_reset_cam(p_hwfn, p_ptt))
3951 		return -EINVAL;
3952 
3953 	qed_hw_set_feat(p_hwfn);
3954 
3955 	for (res_id = 0; res_id < QED_MAX_RESC; res_id++)
3956 		DP_VERBOSE(p_hwfn, NETIF_MSG_PROBE, "%s = %d start = %d\n",
3957 			   qed_hw_get_resc_name(res_id),
3958 			   RESC_NUM(p_hwfn, res_id),
3959 			   RESC_START(p_hwfn, res_id));
3960 
3961 	return 0;
3962 
3963 unlock_and_exit:
3964 	if (resc_lock_params.b_granted && !resc_unlock_params.b_released)
3965 		qed_mcp_resc_unlock(p_hwfn, p_ptt, &resc_unlock_params);
3966 	return rc;
3967 }
3968 
qed_hw_get_nvm_info(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)3969 static int qed_hw_get_nvm_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
3970 {
3971 	u32 port_cfg_addr, link_temp, nvm_cfg_addr, device_capabilities, fld;
3972 	u32 nvm_cfg1_offset, mf_mode, addr, generic_cont0, core_cfg;
3973 	struct qed_mcp_link_speed_params *ext_speed;
3974 	struct qed_mcp_link_capabilities *p_caps;
3975 	struct qed_mcp_link_params *link;
3976 	int i;
3977 
3978 	/* Read global nvm_cfg address */
3979 	nvm_cfg_addr = qed_rd(p_hwfn, p_ptt, MISC_REG_GEN_PURP_CR0);
3980 
3981 	/* Verify MCP has initialized it */
3982 	if (!nvm_cfg_addr) {
3983 		DP_NOTICE(p_hwfn, "Shared memory not initialized\n");
3984 		return -EINVAL;
3985 	}
3986 
3987 	/* Read nvm_cfg1  (Notice this is just offset, and not offsize (TBD) */
3988 	nvm_cfg1_offset = qed_rd(p_hwfn, p_ptt, nvm_cfg_addr + 4);
3989 
3990 	addr = MCP_REG_SCRATCH + nvm_cfg1_offset +
3991 	       offsetof(struct nvm_cfg1, glob) +
3992 	       offsetof(struct nvm_cfg1_glob, core_cfg);
3993 
3994 	core_cfg = qed_rd(p_hwfn, p_ptt, addr);
3995 
3996 	switch ((core_cfg & NVM_CFG1_GLOB_NETWORK_PORT_MODE_MASK) >>
3997 		NVM_CFG1_GLOB_NETWORK_PORT_MODE_OFFSET) {
3998 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_BB_2X40G:
3999 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_2X50G:
4000 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_BB_1X100G:
4001 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_4X10G_F:
4002 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_BB_4X10G_E:
4003 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_BB_4X20G:
4004 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_1X40G:
4005 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_2X25G:
4006 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_2X10G:
4007 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_1X25G:
4008 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_4X25G:
4009 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_AHP_2X50G_R1:
4010 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_AHP_4X50G_R1:
4011 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_AHP_1X100G_R2:
4012 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_AHP_2X100G_R2:
4013 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_AHP_1X100G_R4:
4014 		break;
4015 	default:
4016 		DP_NOTICE(p_hwfn, "Unknown port mode in 0x%08x\n", core_cfg);
4017 		break;
4018 	}
4019 
4020 	/* Read default link configuration */
4021 	link = &p_hwfn->mcp_info->link_input;
4022 	p_caps = &p_hwfn->mcp_info->link_capabilities;
4023 	port_cfg_addr = MCP_REG_SCRATCH + nvm_cfg1_offset +
4024 			offsetof(struct nvm_cfg1, port[MFW_PORT(p_hwfn)]);
4025 	link_temp = qed_rd(p_hwfn, p_ptt,
4026 			   port_cfg_addr +
4027 			   offsetof(struct nvm_cfg1_port, speed_cap_mask));
4028 	link_temp &= NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_MASK;
4029 	link->speed.advertised_speeds = link_temp;
4030 
4031 	p_caps->speed_capabilities = link->speed.advertised_speeds;
4032 
4033 	link_temp = qed_rd(p_hwfn, p_ptt,
4034 			   port_cfg_addr +
4035 			   offsetof(struct nvm_cfg1_port, link_settings));
4036 	switch ((link_temp & NVM_CFG1_PORT_DRV_LINK_SPEED_MASK) >>
4037 		NVM_CFG1_PORT_DRV_LINK_SPEED_OFFSET) {
4038 	case NVM_CFG1_PORT_DRV_LINK_SPEED_AUTONEG:
4039 		link->speed.autoneg = true;
4040 		break;
4041 	case NVM_CFG1_PORT_DRV_LINK_SPEED_1G:
4042 		link->speed.forced_speed = 1000;
4043 		break;
4044 	case NVM_CFG1_PORT_DRV_LINK_SPEED_10G:
4045 		link->speed.forced_speed = 10000;
4046 		break;
4047 	case NVM_CFG1_PORT_DRV_LINK_SPEED_20G:
4048 		link->speed.forced_speed = 20000;
4049 		break;
4050 	case NVM_CFG1_PORT_DRV_LINK_SPEED_25G:
4051 		link->speed.forced_speed = 25000;
4052 		break;
4053 	case NVM_CFG1_PORT_DRV_LINK_SPEED_40G:
4054 		link->speed.forced_speed = 40000;
4055 		break;
4056 	case NVM_CFG1_PORT_DRV_LINK_SPEED_50G:
4057 		link->speed.forced_speed = 50000;
4058 		break;
4059 	case NVM_CFG1_PORT_DRV_LINK_SPEED_BB_100G:
4060 		link->speed.forced_speed = 100000;
4061 		break;
4062 	default:
4063 		DP_NOTICE(p_hwfn, "Unknown Speed in 0x%08x\n", link_temp);
4064 	}
4065 
4066 	p_caps->default_speed_autoneg = link->speed.autoneg;
4067 
4068 	fld = GET_MFW_FIELD(link_temp, NVM_CFG1_PORT_DRV_FLOW_CONTROL);
4069 	link->pause.autoneg = !!(fld & NVM_CFG1_PORT_DRV_FLOW_CONTROL_AUTONEG);
4070 	link->pause.forced_rx = !!(fld & NVM_CFG1_PORT_DRV_FLOW_CONTROL_RX);
4071 	link->pause.forced_tx = !!(fld & NVM_CFG1_PORT_DRV_FLOW_CONTROL_TX);
4072 	link->loopback_mode = 0;
4073 
4074 	if (p_hwfn->mcp_info->capabilities &
4075 	    FW_MB_PARAM_FEATURE_SUPPORT_FEC_CONTROL) {
4076 		switch (GET_MFW_FIELD(link_temp,
4077 				      NVM_CFG1_PORT_FEC_FORCE_MODE)) {
4078 		case NVM_CFG1_PORT_FEC_FORCE_MODE_NONE:
4079 			p_caps->fec_default |= QED_FEC_MODE_NONE;
4080 			break;
4081 		case NVM_CFG1_PORT_FEC_FORCE_MODE_FIRECODE:
4082 			p_caps->fec_default |= QED_FEC_MODE_FIRECODE;
4083 			break;
4084 		case NVM_CFG1_PORT_FEC_FORCE_MODE_RS:
4085 			p_caps->fec_default |= QED_FEC_MODE_RS;
4086 			break;
4087 		case NVM_CFG1_PORT_FEC_FORCE_MODE_AUTO:
4088 			p_caps->fec_default |= QED_FEC_MODE_AUTO;
4089 			break;
4090 		default:
4091 			DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
4092 				   "unknown FEC mode in 0x%08x\n", link_temp);
4093 		}
4094 	} else {
4095 		p_caps->fec_default = QED_FEC_MODE_UNSUPPORTED;
4096 	}
4097 
4098 	link->fec = p_caps->fec_default;
4099 
4100 	if (p_hwfn->mcp_info->capabilities & FW_MB_PARAM_FEATURE_SUPPORT_EEE) {
4101 		link_temp = qed_rd(p_hwfn, p_ptt, port_cfg_addr +
4102 				   offsetof(struct nvm_cfg1_port, ext_phy));
4103 		link_temp &= NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_MASK;
4104 		link_temp >>= NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_OFFSET;
4105 		p_caps->default_eee = QED_MCP_EEE_ENABLED;
4106 		link->eee.enable = true;
4107 		switch (link_temp) {
4108 		case NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_DISABLED:
4109 			p_caps->default_eee = QED_MCP_EEE_DISABLED;
4110 			link->eee.enable = false;
4111 			break;
4112 		case NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_BALANCED:
4113 			p_caps->eee_lpi_timer = EEE_TX_TIMER_USEC_BALANCED_TIME;
4114 			break;
4115 		case NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_AGGRESSIVE:
4116 			p_caps->eee_lpi_timer =
4117 			    EEE_TX_TIMER_USEC_AGGRESSIVE_TIME;
4118 			break;
4119 		case NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_LOW_LATENCY:
4120 			p_caps->eee_lpi_timer = EEE_TX_TIMER_USEC_LATENCY_TIME;
4121 			break;
4122 		}
4123 
4124 		link->eee.tx_lpi_timer = p_caps->eee_lpi_timer;
4125 		link->eee.tx_lpi_enable = link->eee.enable;
4126 		link->eee.adv_caps = QED_EEE_1G_ADV | QED_EEE_10G_ADV;
4127 	} else {
4128 		p_caps->default_eee = QED_MCP_EEE_UNSUPPORTED;
4129 	}
4130 
4131 	if (p_hwfn->mcp_info->capabilities &
4132 	    FW_MB_PARAM_FEATURE_SUPPORT_EXT_SPEED_FEC_CONTROL) {
4133 		ext_speed = &link->ext_speed;
4134 
4135 		link_temp = qed_rd(p_hwfn, p_ptt,
4136 				   port_cfg_addr +
4137 				   offsetof(struct nvm_cfg1_port,
4138 					    extended_speed));
4139 
4140 		fld = GET_MFW_FIELD(link_temp, NVM_CFG1_PORT_EXTENDED_SPEED);
4141 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_AN)
4142 			ext_speed->autoneg = true;
4143 
4144 		ext_speed->forced_speed = 0;
4145 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_1G)
4146 			ext_speed->forced_speed |= QED_EXT_SPEED_1G;
4147 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_10G)
4148 			ext_speed->forced_speed |= QED_EXT_SPEED_10G;
4149 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_20G)
4150 			ext_speed->forced_speed |= QED_EXT_SPEED_20G;
4151 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_25G)
4152 			ext_speed->forced_speed |= QED_EXT_SPEED_25G;
4153 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_40G)
4154 			ext_speed->forced_speed |= QED_EXT_SPEED_40G;
4155 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_50G_R)
4156 			ext_speed->forced_speed |= QED_EXT_SPEED_50G_R;
4157 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_50G_R2)
4158 			ext_speed->forced_speed |= QED_EXT_SPEED_50G_R2;
4159 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_100G_R2)
4160 			ext_speed->forced_speed |= QED_EXT_SPEED_100G_R2;
4161 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_100G_R4)
4162 			ext_speed->forced_speed |= QED_EXT_SPEED_100G_R4;
4163 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_100G_P4)
4164 			ext_speed->forced_speed |= QED_EXT_SPEED_100G_P4;
4165 
4166 		fld = GET_MFW_FIELD(link_temp,
4167 				    NVM_CFG1_PORT_EXTENDED_SPEED_CAP);
4168 
4169 		ext_speed->advertised_speeds = 0;
4170 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_RESERVED)
4171 			ext_speed->advertised_speeds |= QED_EXT_SPEED_MASK_RES;
4172 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_1G)
4173 			ext_speed->advertised_speeds |= QED_EXT_SPEED_MASK_1G;
4174 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_10G)
4175 			ext_speed->advertised_speeds |= QED_EXT_SPEED_MASK_10G;
4176 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_20G)
4177 			ext_speed->advertised_speeds |= QED_EXT_SPEED_MASK_20G;
4178 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_25G)
4179 			ext_speed->advertised_speeds |= QED_EXT_SPEED_MASK_25G;
4180 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_40G)
4181 			ext_speed->advertised_speeds |= QED_EXT_SPEED_MASK_40G;
4182 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_50G_R)
4183 			ext_speed->advertised_speeds |=
4184 				QED_EXT_SPEED_MASK_50G_R;
4185 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_50G_R2)
4186 			ext_speed->advertised_speeds |=
4187 				QED_EXT_SPEED_MASK_50G_R2;
4188 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_100G_R2)
4189 			ext_speed->advertised_speeds |=
4190 				QED_EXT_SPEED_MASK_100G_R2;
4191 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_100G_R4)
4192 			ext_speed->advertised_speeds |=
4193 				QED_EXT_SPEED_MASK_100G_R4;
4194 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_100G_P4)
4195 			ext_speed->advertised_speeds |=
4196 				QED_EXT_SPEED_MASK_100G_P4;
4197 
4198 		link_temp = qed_rd(p_hwfn, p_ptt,
4199 				   port_cfg_addr +
4200 				   offsetof(struct nvm_cfg1_port,
4201 					    extended_fec_mode));
4202 		link->ext_fec_mode = link_temp;
4203 
4204 		p_caps->default_ext_speed_caps = ext_speed->advertised_speeds;
4205 		p_caps->default_ext_speed = ext_speed->forced_speed;
4206 		p_caps->default_ext_autoneg = ext_speed->autoneg;
4207 		p_caps->default_ext_fec = link->ext_fec_mode;
4208 
4209 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
4210 			   "Read default extended link config: Speed 0x%08x, Adv. Speed 0x%08x, AN: 0x%02x, FEC: 0x%02x\n",
4211 			   ext_speed->forced_speed,
4212 			   ext_speed->advertised_speeds, ext_speed->autoneg,
4213 			   p_caps->default_ext_fec);
4214 	}
4215 
4216 	DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
4217 		   "Read default link: Speed 0x%08x, Adv. Speed 0x%08x, AN: 0x%02x, PAUSE AN: 0x%02x, EEE: 0x%02x [0x%08x usec], FEC: 0x%02x\n",
4218 		   link->speed.forced_speed, link->speed.advertised_speeds,
4219 		   link->speed.autoneg, link->pause.autoneg,
4220 		   p_caps->default_eee, p_caps->eee_lpi_timer,
4221 		   p_caps->fec_default);
4222 
4223 	if (IS_LEAD_HWFN(p_hwfn)) {
4224 		struct qed_dev *cdev = p_hwfn->cdev;
4225 
4226 		/* Read Multi-function information from shmem */
4227 		addr = MCP_REG_SCRATCH + nvm_cfg1_offset +
4228 		       offsetof(struct nvm_cfg1, glob) +
4229 		       offsetof(struct nvm_cfg1_glob, generic_cont0);
4230 
4231 		generic_cont0 = qed_rd(p_hwfn, p_ptt, addr);
4232 
4233 		mf_mode = (generic_cont0 & NVM_CFG1_GLOB_MF_MODE_MASK) >>
4234 			  NVM_CFG1_GLOB_MF_MODE_OFFSET;
4235 
4236 		switch (mf_mode) {
4237 		case NVM_CFG1_GLOB_MF_MODE_MF_ALLOWED:
4238 			cdev->mf_bits = BIT(QED_MF_OVLAN_CLSS);
4239 			break;
4240 		case NVM_CFG1_GLOB_MF_MODE_UFP:
4241 			cdev->mf_bits = BIT(QED_MF_OVLAN_CLSS) |
4242 					BIT(QED_MF_LLH_PROTO_CLSS) |
4243 					BIT(QED_MF_UFP_SPECIFIC) |
4244 					BIT(QED_MF_8021Q_TAGGING) |
4245 					BIT(QED_MF_DONT_ADD_VLAN0_TAG);
4246 			break;
4247 		case NVM_CFG1_GLOB_MF_MODE_BD:
4248 			cdev->mf_bits = BIT(QED_MF_OVLAN_CLSS) |
4249 					BIT(QED_MF_LLH_PROTO_CLSS) |
4250 					BIT(QED_MF_8021AD_TAGGING) |
4251 					BIT(QED_MF_DONT_ADD_VLAN0_TAG);
4252 			break;
4253 		case NVM_CFG1_GLOB_MF_MODE_NPAR1_0:
4254 			cdev->mf_bits = BIT(QED_MF_LLH_MAC_CLSS) |
4255 					BIT(QED_MF_LLH_PROTO_CLSS) |
4256 					BIT(QED_MF_LL2_NON_UNICAST) |
4257 					BIT(QED_MF_INTER_PF_SWITCH) |
4258 					BIT(QED_MF_DISABLE_ARFS);
4259 			break;
4260 		case NVM_CFG1_GLOB_MF_MODE_DEFAULT:
4261 			cdev->mf_bits = BIT(QED_MF_LLH_MAC_CLSS) |
4262 					BIT(QED_MF_LLH_PROTO_CLSS) |
4263 					BIT(QED_MF_LL2_NON_UNICAST);
4264 			if (QED_IS_BB(p_hwfn->cdev))
4265 				cdev->mf_bits |= BIT(QED_MF_NEED_DEF_PF);
4266 			break;
4267 		}
4268 
4269 		DP_INFO(p_hwfn, "Multi function mode is 0x%lx\n",
4270 			cdev->mf_bits);
4271 
4272 		/* In CMT the PF is unknown when the GFS block processes the
4273 		 * packet. Therefore cannot use searcher as it has a per PF
4274 		 * database, and thus ARFS must be disabled.
4275 		 *
4276 		 */
4277 		if (QED_IS_CMT(cdev))
4278 			cdev->mf_bits |= BIT(QED_MF_DISABLE_ARFS);
4279 	}
4280 
4281 	DP_INFO(p_hwfn, "Multi function mode is 0x%lx\n",
4282 		p_hwfn->cdev->mf_bits);
4283 
4284 	/* Read device capabilities information from shmem */
4285 	addr = MCP_REG_SCRATCH + nvm_cfg1_offset +
4286 		offsetof(struct nvm_cfg1, glob) +
4287 		offsetof(struct nvm_cfg1_glob, device_capabilities);
4288 
4289 	device_capabilities = qed_rd(p_hwfn, p_ptt, addr);
4290 	if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ETHERNET)
4291 		__set_bit(QED_DEV_CAP_ETH,
4292 			  &p_hwfn->hw_info.device_capabilities);
4293 	if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_FCOE)
4294 		__set_bit(QED_DEV_CAP_FCOE,
4295 			  &p_hwfn->hw_info.device_capabilities);
4296 	if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ISCSI)
4297 		__set_bit(QED_DEV_CAP_ISCSI,
4298 			  &p_hwfn->hw_info.device_capabilities);
4299 	if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ROCE)
4300 		__set_bit(QED_DEV_CAP_ROCE,
4301 			  &p_hwfn->hw_info.device_capabilities);
4302 
4303 	/* Read device serial number information from shmem */
4304 	addr = MCP_REG_SCRATCH + nvm_cfg1_offset +
4305 		offsetof(struct nvm_cfg1, glob) +
4306 		offsetof(struct nvm_cfg1_glob, serial_number);
4307 
4308 	for (i = 0; i < 4; i++)
4309 		p_hwfn->hw_info.part_num[i] = qed_rd(p_hwfn, p_ptt, addr + i * 4);
4310 
4311 	return qed_mcp_fill_shmem_func_info(p_hwfn, p_ptt);
4312 }
4313 
qed_get_num_funcs(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)4314 static void qed_get_num_funcs(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
4315 {
4316 	u8 num_funcs, enabled_func_idx = p_hwfn->rel_pf_id;
4317 	u32 reg_function_hide, tmp, eng_mask, low_pfs_mask;
4318 	struct qed_dev *cdev = p_hwfn->cdev;
4319 
4320 	num_funcs = QED_IS_AH(cdev) ? MAX_NUM_PFS_K2 : MAX_NUM_PFS_BB;
4321 
4322 	/* Bit 0 of MISCS_REG_FUNCTION_HIDE indicates whether the bypass values
4323 	 * in the other bits are selected.
4324 	 * Bits 1-15 are for functions 1-15, respectively, and their value is
4325 	 * '0' only for enabled functions (function 0 always exists and
4326 	 * enabled).
4327 	 * In case of CMT, only the "even" functions are enabled, and thus the
4328 	 * number of functions for both hwfns is learnt from the same bits.
4329 	 */
4330 	reg_function_hide = qed_rd(p_hwfn, p_ptt, MISCS_REG_FUNCTION_HIDE);
4331 
4332 	if (reg_function_hide & 0x1) {
4333 		if (QED_IS_BB(cdev)) {
4334 			if (QED_PATH_ID(p_hwfn) && cdev->num_hwfns == 1) {
4335 				num_funcs = 0;
4336 				eng_mask = 0xaaaa;
4337 			} else {
4338 				num_funcs = 1;
4339 				eng_mask = 0x5554;
4340 			}
4341 		} else {
4342 			num_funcs = 1;
4343 			eng_mask = 0xfffe;
4344 		}
4345 
4346 		/* Get the number of the enabled functions on the engine */
4347 		tmp = (reg_function_hide ^ 0xffffffff) & eng_mask;
4348 		while (tmp) {
4349 			if (tmp & 0x1)
4350 				num_funcs++;
4351 			tmp >>= 0x1;
4352 		}
4353 
4354 		/* Get the PF index within the enabled functions */
4355 		low_pfs_mask = (0x1 << p_hwfn->abs_pf_id) - 1;
4356 		tmp = reg_function_hide & eng_mask & low_pfs_mask;
4357 		while (tmp) {
4358 			if (tmp & 0x1)
4359 				enabled_func_idx--;
4360 			tmp >>= 0x1;
4361 		}
4362 	}
4363 
4364 	p_hwfn->num_funcs_on_engine = num_funcs;
4365 	p_hwfn->enabled_func_idx = enabled_func_idx;
4366 
4367 	DP_VERBOSE(p_hwfn,
4368 		   NETIF_MSG_PROBE,
4369 		   "PF [rel_id %d, abs_id %d] occupies index %d within the %d enabled functions on the engine\n",
4370 		   p_hwfn->rel_pf_id,
4371 		   p_hwfn->abs_pf_id,
4372 		   p_hwfn->enabled_func_idx, p_hwfn->num_funcs_on_engine);
4373 }
4374 
qed_hw_info_port_num(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)4375 static void qed_hw_info_port_num(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
4376 {
4377 	u32 addr, global_offsize, global_addr, port_mode;
4378 	struct qed_dev *cdev = p_hwfn->cdev;
4379 
4380 	/* In CMT there is always only one port */
4381 	if (cdev->num_hwfns > 1) {
4382 		cdev->num_ports_in_engine = 1;
4383 		cdev->num_ports = 1;
4384 		return;
4385 	}
4386 
4387 	/* Determine the number of ports per engine */
4388 	port_mode = qed_rd(p_hwfn, p_ptt, MISC_REG_PORT_MODE);
4389 	switch (port_mode) {
4390 	case 0x0:
4391 		cdev->num_ports_in_engine = 1;
4392 		break;
4393 	case 0x1:
4394 		cdev->num_ports_in_engine = 2;
4395 		break;
4396 	case 0x2:
4397 		cdev->num_ports_in_engine = 4;
4398 		break;
4399 	default:
4400 		DP_NOTICE(p_hwfn, "Unknown port mode 0x%08x\n", port_mode);
4401 		cdev->num_ports_in_engine = 1;	/* Default to something */
4402 		break;
4403 	}
4404 
4405 	/* Get the total number of ports of the device */
4406 	addr = SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->public_base,
4407 				    PUBLIC_GLOBAL);
4408 	global_offsize = qed_rd(p_hwfn, p_ptt, addr);
4409 	global_addr = SECTION_ADDR(global_offsize, 0);
4410 	addr = global_addr + offsetof(struct public_global, max_ports);
4411 	cdev->num_ports = (u8)qed_rd(p_hwfn, p_ptt, addr);
4412 }
4413 
qed_get_eee_caps(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)4414 static void qed_get_eee_caps(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
4415 {
4416 	struct qed_mcp_link_capabilities *p_caps;
4417 	u32 eee_status;
4418 
4419 	p_caps = &p_hwfn->mcp_info->link_capabilities;
4420 	if (p_caps->default_eee == QED_MCP_EEE_UNSUPPORTED)
4421 		return;
4422 
4423 	p_caps->eee_speed_caps = 0;
4424 	eee_status = qed_rd(p_hwfn, p_ptt, p_hwfn->mcp_info->port_addr +
4425 			    offsetof(struct public_port, eee_status));
4426 	eee_status = (eee_status & EEE_SUPPORTED_SPEED_MASK) >>
4427 			EEE_SUPPORTED_SPEED_OFFSET;
4428 
4429 	if (eee_status & EEE_1G_SUPPORTED)
4430 		p_caps->eee_speed_caps |= QED_EEE_1G_ADV;
4431 	if (eee_status & EEE_10G_ADV)
4432 		p_caps->eee_speed_caps |= QED_EEE_10G_ADV;
4433 }
4434 
4435 static int
qed_get_hw_info(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,enum qed_pci_personality personality)4436 qed_get_hw_info(struct qed_hwfn *p_hwfn,
4437 		struct qed_ptt *p_ptt,
4438 		enum qed_pci_personality personality)
4439 {
4440 	int rc;
4441 
4442 	/* Since all information is common, only first hwfns should do this */
4443 	if (IS_LEAD_HWFN(p_hwfn)) {
4444 		rc = qed_iov_hw_info(p_hwfn);
4445 		if (rc)
4446 			return rc;
4447 	}
4448 
4449 	if (IS_LEAD_HWFN(p_hwfn))
4450 		qed_hw_info_port_num(p_hwfn, p_ptt);
4451 
4452 	qed_mcp_get_capabilities(p_hwfn, p_ptt);
4453 
4454 	qed_hw_get_nvm_info(p_hwfn, p_ptt);
4455 
4456 	rc = qed_int_igu_read_cam(p_hwfn, p_ptt);
4457 	if (rc)
4458 		return rc;
4459 
4460 	if (qed_mcp_is_init(p_hwfn))
4461 		ether_addr_copy(p_hwfn->hw_info.hw_mac_addr,
4462 				p_hwfn->mcp_info->func_info.mac);
4463 	else
4464 		eth_random_addr(p_hwfn->hw_info.hw_mac_addr);
4465 
4466 	if (qed_mcp_is_init(p_hwfn)) {
4467 		if (p_hwfn->mcp_info->func_info.ovlan != QED_MCP_VLAN_UNSET)
4468 			p_hwfn->hw_info.ovlan =
4469 				p_hwfn->mcp_info->func_info.ovlan;
4470 
4471 		qed_mcp_cmd_port_init(p_hwfn, p_ptt);
4472 
4473 		qed_get_eee_caps(p_hwfn, p_ptt);
4474 
4475 		qed_mcp_read_ufp_config(p_hwfn, p_ptt);
4476 	}
4477 
4478 	if (qed_mcp_is_init(p_hwfn)) {
4479 		enum qed_pci_personality protocol;
4480 
4481 		protocol = p_hwfn->mcp_info->func_info.protocol;
4482 		p_hwfn->hw_info.personality = protocol;
4483 	}
4484 
4485 	if (QED_IS_ROCE_PERSONALITY(p_hwfn))
4486 		p_hwfn->hw_info.multi_tc_roce_en = true;
4487 
4488 	p_hwfn->hw_info.num_hw_tc = NUM_PHYS_TCS_4PORT_K2;
4489 	p_hwfn->hw_info.num_active_tc = 1;
4490 
4491 	qed_get_num_funcs(p_hwfn, p_ptt);
4492 
4493 	if (qed_mcp_is_init(p_hwfn))
4494 		p_hwfn->hw_info.mtu = p_hwfn->mcp_info->func_info.mtu;
4495 
4496 	return qed_hw_get_resc(p_hwfn, p_ptt);
4497 }
4498 
qed_get_dev_info(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)4499 static int qed_get_dev_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
4500 {
4501 	struct qed_dev *cdev = p_hwfn->cdev;
4502 	u16 device_id_mask;
4503 	u32 tmp;
4504 
4505 	/* Read Vendor Id / Device Id */
4506 	pci_read_config_word(cdev->pdev, PCI_VENDOR_ID, &cdev->vendor_id);
4507 	pci_read_config_word(cdev->pdev, PCI_DEVICE_ID, &cdev->device_id);
4508 
4509 	/* Determine type */
4510 	device_id_mask = cdev->device_id & QED_DEV_ID_MASK;
4511 	switch (device_id_mask) {
4512 	case QED_DEV_ID_MASK_BB:
4513 		cdev->type = QED_DEV_TYPE_BB;
4514 		break;
4515 	case QED_DEV_ID_MASK_AH:
4516 		cdev->type = QED_DEV_TYPE_AH;
4517 		break;
4518 	default:
4519 		DP_NOTICE(p_hwfn, "Unknown device id 0x%x\n", cdev->device_id);
4520 		return -EBUSY;
4521 	}
4522 
4523 	cdev->chip_num = (u16)qed_rd(p_hwfn, p_ptt, MISCS_REG_CHIP_NUM);
4524 	cdev->chip_rev = (u16)qed_rd(p_hwfn, p_ptt, MISCS_REG_CHIP_REV);
4525 
4526 	MASK_FIELD(CHIP_REV, cdev->chip_rev);
4527 
4528 	/* Learn number of HW-functions */
4529 	tmp = qed_rd(p_hwfn, p_ptt, MISCS_REG_CMT_ENABLED_FOR_PAIR);
4530 
4531 	if (tmp & (1 << p_hwfn->rel_pf_id)) {
4532 		DP_NOTICE(cdev->hwfns, "device in CMT mode\n");
4533 		cdev->num_hwfns = 2;
4534 	} else {
4535 		cdev->num_hwfns = 1;
4536 	}
4537 
4538 	cdev->chip_bond_id = qed_rd(p_hwfn, p_ptt,
4539 				    MISCS_REG_CHIP_TEST_REG) >> 4;
4540 	MASK_FIELD(CHIP_BOND_ID, cdev->chip_bond_id);
4541 	cdev->chip_metal = (u16)qed_rd(p_hwfn, p_ptt, MISCS_REG_CHIP_METAL);
4542 	MASK_FIELD(CHIP_METAL, cdev->chip_metal);
4543 
4544 	DP_INFO(cdev->hwfns,
4545 		"Chip details - %s %c%d, Num: %04x Rev: %04x Bond id: %04x Metal: %04x\n",
4546 		QED_IS_BB(cdev) ? "BB" : "AH",
4547 		'A' + cdev->chip_rev,
4548 		(int)cdev->chip_metal,
4549 		cdev->chip_num, cdev->chip_rev,
4550 		cdev->chip_bond_id, cdev->chip_metal);
4551 
4552 	return 0;
4553 }
4554 
qed_hw_prepare_single(struct qed_hwfn * p_hwfn,void __iomem * p_regview,void __iomem * p_doorbells,u64 db_phys_addr,enum qed_pci_personality personality)4555 static int qed_hw_prepare_single(struct qed_hwfn *p_hwfn,
4556 				 void __iomem *p_regview,
4557 				 void __iomem *p_doorbells,
4558 				 u64 db_phys_addr,
4559 				 enum qed_pci_personality personality)
4560 {
4561 	struct qed_dev *cdev = p_hwfn->cdev;
4562 	int rc = 0;
4563 
4564 	/* Split PCI bars evenly between hwfns */
4565 	p_hwfn->regview = p_regview;
4566 	p_hwfn->doorbells = p_doorbells;
4567 	p_hwfn->db_phys_addr = db_phys_addr;
4568 
4569 	if (IS_VF(p_hwfn->cdev))
4570 		return qed_vf_hw_prepare(p_hwfn);
4571 
4572 	/* Validate that chip access is feasible */
4573 	if (REG_RD(p_hwfn, PXP_PF_ME_OPAQUE_ADDR) == 0xffffffff) {
4574 		DP_ERR(p_hwfn,
4575 		       "Reading the ME register returns all Fs; Preventing further chip access\n");
4576 		return -EINVAL;
4577 	}
4578 
4579 	get_function_id(p_hwfn);
4580 
4581 	/* Allocate PTT pool */
4582 	rc = qed_ptt_pool_alloc(p_hwfn);
4583 	if (rc)
4584 		goto err0;
4585 
4586 	/* Allocate the main PTT */
4587 	p_hwfn->p_main_ptt = qed_get_reserved_ptt(p_hwfn, RESERVED_PTT_MAIN);
4588 
4589 	/* First hwfn learns basic information, e.g., number of hwfns */
4590 	if (!p_hwfn->my_id) {
4591 		rc = qed_get_dev_info(p_hwfn, p_hwfn->p_main_ptt);
4592 		if (rc)
4593 			goto err1;
4594 	}
4595 
4596 	qed_hw_hwfn_prepare(p_hwfn);
4597 
4598 	/* Initialize MCP structure */
4599 	rc = qed_mcp_cmd_init(p_hwfn, p_hwfn->p_main_ptt);
4600 	if (rc) {
4601 		DP_NOTICE(p_hwfn, "Failed initializing mcp command\n");
4602 		goto err1;
4603 	}
4604 
4605 	/* Read the device configuration information from the HW and SHMEM */
4606 	rc = qed_get_hw_info(p_hwfn, p_hwfn->p_main_ptt, personality);
4607 	if (rc) {
4608 		DP_NOTICE(p_hwfn, "Failed to get HW information\n");
4609 		goto err2;
4610 	}
4611 
4612 	/* Sending a mailbox to the MFW should be done after qed_get_hw_info()
4613 	 * is called as it sets the ports number in an engine.
4614 	 */
4615 	if (IS_LEAD_HWFN(p_hwfn) && !cdev->recov_in_prog) {
4616 		rc = qed_mcp_initiate_pf_flr(p_hwfn, p_hwfn->p_main_ptt);
4617 		if (rc)
4618 			DP_NOTICE(p_hwfn, "Failed to initiate PF FLR\n");
4619 	}
4620 
4621 	/* NVRAM info initialization and population */
4622 	if (IS_LEAD_HWFN(p_hwfn)) {
4623 		rc = qed_mcp_nvm_info_populate(p_hwfn);
4624 		if (rc) {
4625 			DP_NOTICE(p_hwfn,
4626 				  "Failed to populate nvm info shadow\n");
4627 			goto err2;
4628 		}
4629 	}
4630 
4631 	/* Allocate the init RT array and initialize the init-ops engine */
4632 	rc = qed_init_alloc(p_hwfn);
4633 	if (rc)
4634 		goto err3;
4635 
4636 	return rc;
4637 err3:
4638 	if (IS_LEAD_HWFN(p_hwfn))
4639 		qed_mcp_nvm_info_free(p_hwfn);
4640 err2:
4641 	if (IS_LEAD_HWFN(p_hwfn))
4642 		qed_iov_free_hw_info(p_hwfn->cdev);
4643 	qed_mcp_free(p_hwfn);
4644 err1:
4645 	qed_hw_hwfn_free(p_hwfn);
4646 err0:
4647 	return rc;
4648 }
4649 
qed_hw_prepare(struct qed_dev * cdev,int personality)4650 int qed_hw_prepare(struct qed_dev *cdev,
4651 		   int personality)
4652 {
4653 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
4654 	int rc;
4655 
4656 	/* Store the precompiled init data ptrs */
4657 	if (IS_PF(cdev))
4658 		qed_init_iro_array(cdev);
4659 
4660 	/* Initialize the first hwfn - will learn number of hwfns */
4661 	rc = qed_hw_prepare_single(p_hwfn,
4662 				   cdev->regview,
4663 				   cdev->doorbells,
4664 				   cdev->db_phys_addr,
4665 				   personality);
4666 	if (rc)
4667 		return rc;
4668 
4669 	personality = p_hwfn->hw_info.personality;
4670 
4671 	/* Initialize the rest of the hwfns */
4672 	if (cdev->num_hwfns > 1) {
4673 		void __iomem *p_regview, *p_doorbell;
4674 		u64 db_phys_addr;
4675 		u32 offset;
4676 
4677 		/* adjust bar offset for second engine */
4678 		offset = qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
4679 					 BAR_ID_0) / 2;
4680 		p_regview = cdev->regview + offset;
4681 
4682 		offset = qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
4683 					 BAR_ID_1) / 2;
4684 
4685 		p_doorbell = cdev->doorbells + offset;
4686 
4687 		db_phys_addr = cdev->db_phys_addr + offset;
4688 
4689 		/* prepare second hw function */
4690 		rc = qed_hw_prepare_single(&cdev->hwfns[1], p_regview,
4691 					   p_doorbell, db_phys_addr,
4692 					   personality);
4693 
4694 		/* in case of error, need to free the previously
4695 		 * initiliazed hwfn 0.
4696 		 */
4697 		if (rc) {
4698 			if (IS_PF(cdev)) {
4699 				qed_init_free(p_hwfn);
4700 				qed_mcp_nvm_info_free(p_hwfn);
4701 				qed_mcp_free(p_hwfn);
4702 				qed_hw_hwfn_free(p_hwfn);
4703 			}
4704 		}
4705 	}
4706 
4707 	return rc;
4708 }
4709 
qed_hw_remove(struct qed_dev * cdev)4710 void qed_hw_remove(struct qed_dev *cdev)
4711 {
4712 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
4713 	int i;
4714 
4715 	if (IS_PF(cdev))
4716 		qed_mcp_ov_update_driver_state(p_hwfn, p_hwfn->p_main_ptt,
4717 					       QED_OV_DRIVER_STATE_NOT_LOADED);
4718 
4719 	for_each_hwfn(cdev, i) {
4720 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
4721 
4722 		if (IS_VF(cdev)) {
4723 			qed_vf_pf_release(p_hwfn);
4724 			continue;
4725 		}
4726 
4727 		qed_init_free(p_hwfn);
4728 		qed_hw_hwfn_free(p_hwfn);
4729 		qed_mcp_free(p_hwfn);
4730 	}
4731 
4732 	qed_iov_free_hw_info(cdev);
4733 
4734 	qed_mcp_nvm_info_free(p_hwfn);
4735 }
4736 
qed_fw_l2_queue(struct qed_hwfn * p_hwfn,u16 src_id,u16 * dst_id)4737 int qed_fw_l2_queue(struct qed_hwfn *p_hwfn, u16 src_id, u16 *dst_id)
4738 {
4739 	if (src_id >= RESC_NUM(p_hwfn, QED_L2_QUEUE)) {
4740 		u16 min, max;
4741 
4742 		min = (u16) RESC_START(p_hwfn, QED_L2_QUEUE);
4743 		max = min + RESC_NUM(p_hwfn, QED_L2_QUEUE);
4744 		DP_NOTICE(p_hwfn,
4745 			  "l2_queue id [%d] is not valid, available indices [%d - %d]\n",
4746 			  src_id, min, max);
4747 
4748 		return -EINVAL;
4749 	}
4750 
4751 	*dst_id = RESC_START(p_hwfn, QED_L2_QUEUE) + src_id;
4752 
4753 	return 0;
4754 }
4755 
qed_fw_vport(struct qed_hwfn * p_hwfn,u8 src_id,u8 * dst_id)4756 int qed_fw_vport(struct qed_hwfn *p_hwfn, u8 src_id, u8 *dst_id)
4757 {
4758 	if (src_id >= RESC_NUM(p_hwfn, QED_VPORT)) {
4759 		u8 min, max;
4760 
4761 		min = (u8)RESC_START(p_hwfn, QED_VPORT);
4762 		max = min + RESC_NUM(p_hwfn, QED_VPORT);
4763 		DP_NOTICE(p_hwfn,
4764 			  "vport id [%d] is not valid, available indices [%d - %d]\n",
4765 			  src_id, min, max);
4766 
4767 		return -EINVAL;
4768 	}
4769 
4770 	*dst_id = RESC_START(p_hwfn, QED_VPORT) + src_id;
4771 
4772 	return 0;
4773 }
4774 
qed_fw_rss_eng(struct qed_hwfn * p_hwfn,u8 src_id,u8 * dst_id)4775 int qed_fw_rss_eng(struct qed_hwfn *p_hwfn, u8 src_id, u8 *dst_id)
4776 {
4777 	if (src_id >= RESC_NUM(p_hwfn, QED_RSS_ENG)) {
4778 		u8 min, max;
4779 
4780 		min = (u8)RESC_START(p_hwfn, QED_RSS_ENG);
4781 		max = min + RESC_NUM(p_hwfn, QED_RSS_ENG);
4782 		DP_NOTICE(p_hwfn,
4783 			  "rss_eng id [%d] is not valid, available indices [%d - %d]\n",
4784 			  src_id, min, max);
4785 
4786 		return -EINVAL;
4787 	}
4788 
4789 	*dst_id = RESC_START(p_hwfn, QED_RSS_ENG) + src_id;
4790 
4791 	return 0;
4792 }
4793 
qed_set_coalesce(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u32 hw_addr,void * p_eth_qzone,size_t eth_qzone_size,u8 timeset)4794 static int qed_set_coalesce(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
4795 			    u32 hw_addr, void *p_eth_qzone,
4796 			    size_t eth_qzone_size, u8 timeset)
4797 {
4798 	struct coalescing_timeset *p_coal_timeset;
4799 
4800 	if (p_hwfn->cdev->int_coalescing_mode != QED_COAL_MODE_ENABLE) {
4801 		DP_NOTICE(p_hwfn, "Coalescing configuration not enabled\n");
4802 		return -EINVAL;
4803 	}
4804 
4805 	p_coal_timeset = p_eth_qzone;
4806 	memset(p_eth_qzone, 0, eth_qzone_size);
4807 	SET_FIELD(p_coal_timeset->value, COALESCING_TIMESET_TIMESET, timeset);
4808 	SET_FIELD(p_coal_timeset->value, COALESCING_TIMESET_VALID, 1);
4809 	qed_memcpy_to(p_hwfn, p_ptt, hw_addr, p_eth_qzone, eth_qzone_size);
4810 
4811 	return 0;
4812 }
4813 
qed_set_queue_coalesce(u16 rx_coal,u16 tx_coal,void * p_handle)4814 int qed_set_queue_coalesce(u16 rx_coal, u16 tx_coal, void *p_handle)
4815 {
4816 	struct qed_queue_cid *p_cid = p_handle;
4817 	struct qed_hwfn *p_hwfn;
4818 	struct qed_ptt *p_ptt;
4819 	int rc = 0;
4820 
4821 	p_hwfn = p_cid->p_owner;
4822 
4823 	if (IS_VF(p_hwfn->cdev))
4824 		return qed_vf_pf_set_coalesce(p_hwfn, rx_coal, tx_coal, p_cid);
4825 
4826 	p_ptt = qed_ptt_acquire(p_hwfn);
4827 	if (!p_ptt)
4828 		return -EAGAIN;
4829 
4830 	if (rx_coal) {
4831 		rc = qed_set_rxq_coalesce(p_hwfn, p_ptt, rx_coal, p_cid);
4832 		if (rc)
4833 			goto out;
4834 		p_hwfn->cdev->rx_coalesce_usecs = rx_coal;
4835 	}
4836 
4837 	if (tx_coal) {
4838 		rc = qed_set_txq_coalesce(p_hwfn, p_ptt, tx_coal, p_cid);
4839 		if (rc)
4840 			goto out;
4841 		p_hwfn->cdev->tx_coalesce_usecs = tx_coal;
4842 	}
4843 out:
4844 	qed_ptt_release(p_hwfn, p_ptt);
4845 	return rc;
4846 }
4847 
qed_set_rxq_coalesce(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u16 coalesce,struct qed_queue_cid * p_cid)4848 int qed_set_rxq_coalesce(struct qed_hwfn *p_hwfn,
4849 			 struct qed_ptt *p_ptt,
4850 			 u16 coalesce, struct qed_queue_cid *p_cid)
4851 {
4852 	struct ustorm_eth_queue_zone eth_qzone;
4853 	u8 timeset, timer_res;
4854 	u32 address;
4855 	int rc;
4856 
4857 	/* Coalesce = (timeset << timer-resolution), timeset is 7bit wide */
4858 	if (coalesce <= 0x7F) {
4859 		timer_res = 0;
4860 	} else if (coalesce <= 0xFF) {
4861 		timer_res = 1;
4862 	} else if (coalesce <= 0x1FF) {
4863 		timer_res = 2;
4864 	} else {
4865 		DP_ERR(p_hwfn, "Invalid coalesce value - %d\n", coalesce);
4866 		return -EINVAL;
4867 	}
4868 	timeset = (u8)(coalesce >> timer_res);
4869 
4870 	rc = qed_int_set_timer_res(p_hwfn, p_ptt, timer_res,
4871 				   p_cid->sb_igu_id, false);
4872 	if (rc)
4873 		goto out;
4874 
4875 	address = BAR0_MAP_REG_USDM_RAM +
4876 		  USTORM_ETH_QUEUE_ZONE_OFFSET(p_cid->abs.queue_id);
4877 
4878 	rc = qed_set_coalesce(p_hwfn, p_ptt, address, &eth_qzone,
4879 			      sizeof(struct ustorm_eth_queue_zone), timeset);
4880 	if (rc)
4881 		goto out;
4882 
4883 out:
4884 	return rc;
4885 }
4886 
qed_set_txq_coalesce(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u16 coalesce,struct qed_queue_cid * p_cid)4887 int qed_set_txq_coalesce(struct qed_hwfn *p_hwfn,
4888 			 struct qed_ptt *p_ptt,
4889 			 u16 coalesce, struct qed_queue_cid *p_cid)
4890 {
4891 	struct xstorm_eth_queue_zone eth_qzone;
4892 	u8 timeset, timer_res;
4893 	u32 address;
4894 	int rc;
4895 
4896 	/* Coalesce = (timeset << timer-resolution), timeset is 7bit wide */
4897 	if (coalesce <= 0x7F) {
4898 		timer_res = 0;
4899 	} else if (coalesce <= 0xFF) {
4900 		timer_res = 1;
4901 	} else if (coalesce <= 0x1FF) {
4902 		timer_res = 2;
4903 	} else {
4904 		DP_ERR(p_hwfn, "Invalid coalesce value - %d\n", coalesce);
4905 		return -EINVAL;
4906 	}
4907 	timeset = (u8)(coalesce >> timer_res);
4908 
4909 	rc = qed_int_set_timer_res(p_hwfn, p_ptt, timer_res,
4910 				   p_cid->sb_igu_id, true);
4911 	if (rc)
4912 		goto out;
4913 
4914 	address = BAR0_MAP_REG_XSDM_RAM +
4915 		  XSTORM_ETH_QUEUE_ZONE_OFFSET(p_cid->abs.queue_id);
4916 
4917 	rc = qed_set_coalesce(p_hwfn, p_ptt, address, &eth_qzone,
4918 			      sizeof(struct xstorm_eth_queue_zone), timeset);
4919 out:
4920 	return rc;
4921 }
4922 
4923 /* Calculate final WFQ values for all vports and configure them.
4924  * After this configuration each vport will have
4925  * approx min rate =  min_pf_rate * (vport_wfq / QED_WFQ_UNIT)
4926  */
qed_configure_wfq_for_all_vports(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u32 min_pf_rate)4927 static void qed_configure_wfq_for_all_vports(struct qed_hwfn *p_hwfn,
4928 					     struct qed_ptt *p_ptt,
4929 					     u32 min_pf_rate)
4930 {
4931 	struct init_qm_vport_params *vport_params;
4932 	int i;
4933 
4934 	vport_params = p_hwfn->qm_info.qm_vport_params;
4935 
4936 	for (i = 0; i < p_hwfn->qm_info.num_vports; i++) {
4937 		u32 wfq_speed = p_hwfn->qm_info.wfq_data[i].min_speed;
4938 
4939 		vport_params[i].wfq = (wfq_speed * QED_WFQ_UNIT) /
4940 						min_pf_rate;
4941 		qed_init_vport_wfq(p_hwfn, p_ptt,
4942 				   vport_params[i].first_tx_pq_id,
4943 				   vport_params[i].wfq);
4944 	}
4945 }
4946 
qed_init_wfq_default_param(struct qed_hwfn * p_hwfn,u32 min_pf_rate)4947 static void qed_init_wfq_default_param(struct qed_hwfn *p_hwfn,
4948 				       u32 min_pf_rate)
4949 
4950 {
4951 	int i;
4952 
4953 	for (i = 0; i < p_hwfn->qm_info.num_vports; i++)
4954 		p_hwfn->qm_info.qm_vport_params[i].wfq = 1;
4955 }
4956 
qed_disable_wfq_for_all_vports(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u32 min_pf_rate)4957 static void qed_disable_wfq_for_all_vports(struct qed_hwfn *p_hwfn,
4958 					   struct qed_ptt *p_ptt,
4959 					   u32 min_pf_rate)
4960 {
4961 	struct init_qm_vport_params *vport_params;
4962 	int i;
4963 
4964 	vport_params = p_hwfn->qm_info.qm_vport_params;
4965 
4966 	for (i = 0; i < p_hwfn->qm_info.num_vports; i++) {
4967 		qed_init_wfq_default_param(p_hwfn, min_pf_rate);
4968 		qed_init_vport_wfq(p_hwfn, p_ptt,
4969 				   vport_params[i].first_tx_pq_id,
4970 				   vport_params[i].wfq);
4971 	}
4972 }
4973 
4974 /* This function performs several validations for WFQ
4975  * configuration and required min rate for a given vport
4976  * 1. req_rate must be greater than one percent of min_pf_rate.
4977  * 2. req_rate should not cause other vports [not configured for WFQ explicitly]
4978  *    rates to get less than one percent of min_pf_rate.
4979  * 3. total_req_min_rate [all vports min rate sum] shouldn't exceed min_pf_rate.
4980  */
qed_init_wfq_param(struct qed_hwfn * p_hwfn,u16 vport_id,u32 req_rate,u32 min_pf_rate)4981 static int qed_init_wfq_param(struct qed_hwfn *p_hwfn,
4982 			      u16 vport_id, u32 req_rate, u32 min_pf_rate)
4983 {
4984 	u32 total_req_min_rate = 0, total_left_rate = 0, left_rate_per_vp = 0;
4985 	int non_requested_count = 0, req_count = 0, i, num_vports;
4986 
4987 	num_vports = p_hwfn->qm_info.num_vports;
4988 
4989 	/* Accounting for the vports which are configured for WFQ explicitly */
4990 	for (i = 0; i < num_vports; i++) {
4991 		u32 tmp_speed;
4992 
4993 		if ((i != vport_id) &&
4994 		    p_hwfn->qm_info.wfq_data[i].configured) {
4995 			req_count++;
4996 			tmp_speed = p_hwfn->qm_info.wfq_data[i].min_speed;
4997 			total_req_min_rate += tmp_speed;
4998 		}
4999 	}
5000 
5001 	/* Include current vport data as well */
5002 	req_count++;
5003 	total_req_min_rate += req_rate;
5004 	non_requested_count = num_vports - req_count;
5005 
5006 	if (req_rate < min_pf_rate / QED_WFQ_UNIT) {
5007 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
5008 			   "Vport [%d] - Requested rate[%d Mbps] is less than one percent of configured PF min rate[%d Mbps]\n",
5009 			   vport_id, req_rate, min_pf_rate);
5010 		return -EINVAL;
5011 	}
5012 
5013 	if (num_vports > QED_WFQ_UNIT) {
5014 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
5015 			   "Number of vports is greater than %d\n",
5016 			   QED_WFQ_UNIT);
5017 		return -EINVAL;
5018 	}
5019 
5020 	if (total_req_min_rate > min_pf_rate) {
5021 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
5022 			   "Total requested min rate for all vports[%d Mbps] is greater than configured PF min rate[%d Mbps]\n",
5023 			   total_req_min_rate, min_pf_rate);
5024 		return -EINVAL;
5025 	}
5026 
5027 	total_left_rate	= min_pf_rate - total_req_min_rate;
5028 
5029 	left_rate_per_vp = total_left_rate / non_requested_count;
5030 	if (left_rate_per_vp <  min_pf_rate / QED_WFQ_UNIT) {
5031 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
5032 			   "Non WFQ configured vports rate [%d Mbps] is less than one percent of configured PF min rate[%d Mbps]\n",
5033 			   left_rate_per_vp, min_pf_rate);
5034 		return -EINVAL;
5035 	}
5036 
5037 	p_hwfn->qm_info.wfq_data[vport_id].min_speed = req_rate;
5038 	p_hwfn->qm_info.wfq_data[vport_id].configured = true;
5039 
5040 	for (i = 0; i < num_vports; i++) {
5041 		if (p_hwfn->qm_info.wfq_data[i].configured)
5042 			continue;
5043 
5044 		p_hwfn->qm_info.wfq_data[i].min_speed = left_rate_per_vp;
5045 	}
5046 
5047 	return 0;
5048 }
5049 
__qed_configure_vport_wfq(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u16 vp_id,u32 rate)5050 static int __qed_configure_vport_wfq(struct qed_hwfn *p_hwfn,
5051 				     struct qed_ptt *p_ptt, u16 vp_id, u32 rate)
5052 {
5053 	struct qed_mcp_link_state *p_link;
5054 	int rc = 0;
5055 
5056 	p_link = &p_hwfn->cdev->hwfns[0].mcp_info->link_output;
5057 
5058 	if (!p_link->min_pf_rate) {
5059 		p_hwfn->qm_info.wfq_data[vp_id].min_speed = rate;
5060 		p_hwfn->qm_info.wfq_data[vp_id].configured = true;
5061 		return rc;
5062 	}
5063 
5064 	rc = qed_init_wfq_param(p_hwfn, vp_id, rate, p_link->min_pf_rate);
5065 
5066 	if (!rc)
5067 		qed_configure_wfq_for_all_vports(p_hwfn, p_ptt,
5068 						 p_link->min_pf_rate);
5069 	else
5070 		DP_NOTICE(p_hwfn,
5071 			  "Validation failed while configuring min rate\n");
5072 
5073 	return rc;
5074 }
5075 
__qed_configure_vp_wfq_on_link_change(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u32 min_pf_rate)5076 static int __qed_configure_vp_wfq_on_link_change(struct qed_hwfn *p_hwfn,
5077 						 struct qed_ptt *p_ptt,
5078 						 u32 min_pf_rate)
5079 {
5080 	bool use_wfq = false;
5081 	int rc = 0;
5082 	u16 i;
5083 
5084 	/* Validate all pre configured vports for wfq */
5085 	for (i = 0; i < p_hwfn->qm_info.num_vports; i++) {
5086 		u32 rate;
5087 
5088 		if (!p_hwfn->qm_info.wfq_data[i].configured)
5089 			continue;
5090 
5091 		rate = p_hwfn->qm_info.wfq_data[i].min_speed;
5092 		use_wfq = true;
5093 
5094 		rc = qed_init_wfq_param(p_hwfn, i, rate, min_pf_rate);
5095 		if (rc) {
5096 			DP_NOTICE(p_hwfn,
5097 				  "WFQ validation failed while configuring min rate\n");
5098 			break;
5099 		}
5100 	}
5101 
5102 	if (!rc && use_wfq)
5103 		qed_configure_wfq_for_all_vports(p_hwfn, p_ptt, min_pf_rate);
5104 	else
5105 		qed_disable_wfq_for_all_vports(p_hwfn, p_ptt, min_pf_rate);
5106 
5107 	return rc;
5108 }
5109 
5110 /* Main API for qed clients to configure vport min rate.
5111  * vp_id - vport id in PF Range[0 - (total_num_vports_per_pf - 1)]
5112  * rate - Speed in Mbps needs to be assigned to a given vport.
5113  */
qed_configure_vport_wfq(struct qed_dev * cdev,u16 vp_id,u32 rate)5114 int qed_configure_vport_wfq(struct qed_dev *cdev, u16 vp_id, u32 rate)
5115 {
5116 	int i, rc = -EINVAL;
5117 
5118 	/* Currently not supported; Might change in future */
5119 	if (cdev->num_hwfns > 1) {
5120 		DP_NOTICE(cdev,
5121 			  "WFQ configuration is not supported for this device\n");
5122 		return rc;
5123 	}
5124 
5125 	for_each_hwfn(cdev, i) {
5126 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
5127 		struct qed_ptt *p_ptt;
5128 
5129 		p_ptt = qed_ptt_acquire(p_hwfn);
5130 		if (!p_ptt)
5131 			return -EBUSY;
5132 
5133 		rc = __qed_configure_vport_wfq(p_hwfn, p_ptt, vp_id, rate);
5134 
5135 		if (rc) {
5136 			qed_ptt_release(p_hwfn, p_ptt);
5137 			return rc;
5138 		}
5139 
5140 		qed_ptt_release(p_hwfn, p_ptt);
5141 	}
5142 
5143 	return rc;
5144 }
5145 
5146 /* API to configure WFQ from mcp link change */
qed_configure_vp_wfq_on_link_change(struct qed_dev * cdev,struct qed_ptt * p_ptt,u32 min_pf_rate)5147 void qed_configure_vp_wfq_on_link_change(struct qed_dev *cdev,
5148 					 struct qed_ptt *p_ptt, u32 min_pf_rate)
5149 {
5150 	int i;
5151 
5152 	if (cdev->num_hwfns > 1) {
5153 		DP_VERBOSE(cdev,
5154 			   NETIF_MSG_LINK,
5155 			   "WFQ configuration is not supported for this device\n");
5156 		return;
5157 	}
5158 
5159 	for_each_hwfn(cdev, i) {
5160 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
5161 
5162 		__qed_configure_vp_wfq_on_link_change(p_hwfn, p_ptt,
5163 						      min_pf_rate);
5164 	}
5165 }
5166 
__qed_configure_pf_max_bandwidth(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,struct qed_mcp_link_state * p_link,u8 max_bw)5167 int __qed_configure_pf_max_bandwidth(struct qed_hwfn *p_hwfn,
5168 				     struct qed_ptt *p_ptt,
5169 				     struct qed_mcp_link_state *p_link,
5170 				     u8 max_bw)
5171 {
5172 	int rc = 0;
5173 
5174 	p_hwfn->mcp_info->func_info.bandwidth_max = max_bw;
5175 
5176 	if (!p_link->line_speed && (max_bw != 100))
5177 		return rc;
5178 
5179 	p_link->speed = (p_link->line_speed * max_bw) / 100;
5180 	p_hwfn->qm_info.pf_rl = p_link->speed;
5181 
5182 	/* Since the limiter also affects Tx-switched traffic, we don't want it
5183 	 * to limit such traffic in case there's no actual limit.
5184 	 * In that case, set limit to imaginary high boundary.
5185 	 */
5186 	if (max_bw == 100)
5187 		p_hwfn->qm_info.pf_rl = 100000;
5188 
5189 	rc = qed_init_pf_rl(p_hwfn, p_ptt, p_hwfn->rel_pf_id,
5190 			    p_hwfn->qm_info.pf_rl);
5191 
5192 	DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
5193 		   "Configured MAX bandwidth to be %08x Mb/sec\n",
5194 		   p_link->speed);
5195 
5196 	return rc;
5197 }
5198 
5199 /* Main API to configure PF max bandwidth where bw range is [1 - 100] */
qed_configure_pf_max_bandwidth(struct qed_dev * cdev,u8 max_bw)5200 int qed_configure_pf_max_bandwidth(struct qed_dev *cdev, u8 max_bw)
5201 {
5202 	int i, rc = -EINVAL;
5203 
5204 	if (max_bw < 1 || max_bw > 100) {
5205 		DP_NOTICE(cdev, "PF max bw valid range is [1-100]\n");
5206 		return rc;
5207 	}
5208 
5209 	for_each_hwfn(cdev, i) {
5210 		struct qed_hwfn	*p_hwfn = &cdev->hwfns[i];
5211 		struct qed_hwfn *p_lead = QED_LEADING_HWFN(cdev);
5212 		struct qed_mcp_link_state *p_link;
5213 		struct qed_ptt *p_ptt;
5214 
5215 		p_link = &p_lead->mcp_info->link_output;
5216 
5217 		p_ptt = qed_ptt_acquire(p_hwfn);
5218 		if (!p_ptt)
5219 			return -EBUSY;
5220 
5221 		rc = __qed_configure_pf_max_bandwidth(p_hwfn, p_ptt,
5222 						      p_link, max_bw);
5223 
5224 		qed_ptt_release(p_hwfn, p_ptt);
5225 
5226 		if (rc)
5227 			break;
5228 	}
5229 
5230 	return rc;
5231 }
5232 
__qed_configure_pf_min_bandwidth(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,struct qed_mcp_link_state * p_link,u8 min_bw)5233 int __qed_configure_pf_min_bandwidth(struct qed_hwfn *p_hwfn,
5234 				     struct qed_ptt *p_ptt,
5235 				     struct qed_mcp_link_state *p_link,
5236 				     u8 min_bw)
5237 {
5238 	int rc = 0;
5239 
5240 	p_hwfn->mcp_info->func_info.bandwidth_min = min_bw;
5241 	p_hwfn->qm_info.pf_wfq = min_bw;
5242 
5243 	if (!p_link->line_speed)
5244 		return rc;
5245 
5246 	p_link->min_pf_rate = (p_link->line_speed * min_bw) / 100;
5247 
5248 	rc = qed_init_pf_wfq(p_hwfn, p_ptt, p_hwfn->rel_pf_id, min_bw);
5249 
5250 	DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
5251 		   "Configured MIN bandwidth to be %d Mb/sec\n",
5252 		   p_link->min_pf_rate);
5253 
5254 	return rc;
5255 }
5256 
5257 /* Main API to configure PF min bandwidth where bw range is [1-100] */
qed_configure_pf_min_bandwidth(struct qed_dev * cdev,u8 min_bw)5258 int qed_configure_pf_min_bandwidth(struct qed_dev *cdev, u8 min_bw)
5259 {
5260 	int i, rc = -EINVAL;
5261 
5262 	if (min_bw < 1 || min_bw > 100) {
5263 		DP_NOTICE(cdev, "PF min bw valid range is [1-100]\n");
5264 		return rc;
5265 	}
5266 
5267 	for_each_hwfn(cdev, i) {
5268 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
5269 		struct qed_hwfn *p_lead = QED_LEADING_HWFN(cdev);
5270 		struct qed_mcp_link_state *p_link;
5271 		struct qed_ptt *p_ptt;
5272 
5273 		p_link = &p_lead->mcp_info->link_output;
5274 
5275 		p_ptt = qed_ptt_acquire(p_hwfn);
5276 		if (!p_ptt)
5277 			return -EBUSY;
5278 
5279 		rc = __qed_configure_pf_min_bandwidth(p_hwfn, p_ptt,
5280 						      p_link, min_bw);
5281 		if (rc) {
5282 			qed_ptt_release(p_hwfn, p_ptt);
5283 			return rc;
5284 		}
5285 
5286 		if (p_link->min_pf_rate) {
5287 			u32 min_rate = p_link->min_pf_rate;
5288 
5289 			rc = __qed_configure_vp_wfq_on_link_change(p_hwfn,
5290 								   p_ptt,
5291 								   min_rate);
5292 		}
5293 
5294 		qed_ptt_release(p_hwfn, p_ptt);
5295 	}
5296 
5297 	return rc;
5298 }
5299 
qed_clean_wfq_db(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)5300 void qed_clean_wfq_db(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
5301 {
5302 	struct qed_mcp_link_state *p_link;
5303 
5304 	p_link = &p_hwfn->mcp_info->link_output;
5305 
5306 	if (p_link->min_pf_rate)
5307 		qed_disable_wfq_for_all_vports(p_hwfn, p_ptt,
5308 					       p_link->min_pf_rate);
5309 
5310 	memset(p_hwfn->qm_info.wfq_data, 0,
5311 	       sizeof(*p_hwfn->qm_info.wfq_data) * p_hwfn->qm_info.num_vports);
5312 }
5313 
qed_device_num_ports(struct qed_dev * cdev)5314 int qed_device_num_ports(struct qed_dev *cdev)
5315 {
5316 	return cdev->num_ports;
5317 }
5318 
qed_set_fw_mac_addr(__le16 * fw_msb,__le16 * fw_mid,__le16 * fw_lsb,u8 * mac)5319 void qed_set_fw_mac_addr(__le16 *fw_msb,
5320 			 __le16 *fw_mid, __le16 *fw_lsb, u8 *mac)
5321 {
5322 	((u8 *)fw_msb)[0] = mac[1];
5323 	((u8 *)fw_msb)[1] = mac[0];
5324 	((u8 *)fw_mid)[0] = mac[3];
5325 	((u8 *)fw_mid)[1] = mac[2];
5326 	((u8 *)fw_lsb)[0] = mac[5];
5327 	((u8 *)fw_lsb)[1] = mac[4];
5328 }
5329