xref: /linux/drivers/net/ethernet/qlogic/qed/qed_dev.c (revision 8be4d31cb8aaeea27bde4b7ddb26e28a89062ebf)
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_iro_hsi.h"
29 #include "qed_hw.h"
30 #include "qed_init_ops.h"
31 #include "qed_int.h"
32 #include "qed_iscsi.h"
33 #include "qed_ll2.h"
34 #include "qed_mcp.h"
35 #include "qed_ooo.h"
36 #include "qed_reg_addr.h"
37 #include "qed_sp.h"
38 #include "qed_sriov.h"
39 #include "qed_vf.h"
40 #include "qed_rdma.h"
41 #include "qed_nvmetcp.h"
42 
43 static DEFINE_SPINLOCK(qm_lock);
44 
45 /******************** Doorbell Recovery *******************/
46 /* The doorbell recovery mechanism consists of a list of entries which represent
47  * doorbelling entities (l2 queues, roce sq/rq/cqs, the slowpath spq, etc). Each
48  * entity needs to register with the mechanism and provide the parameters
49  * describing it's doorbell, including a location where last used doorbell data
50  * can be found. The doorbell execute function will traverse the list and
51  * doorbell all of the registered entries.
52  */
53 struct qed_db_recovery_entry {
54 	struct list_head list_entry;
55 	void __iomem *db_addr;
56 	void *db_data;
57 	enum qed_db_rec_width db_width;
58 	enum qed_db_rec_space db_space;
59 	u8 hwfn_idx;
60 };
61 
62 /* 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)63 static void qed_db_recovery_dp_entry(struct qed_hwfn *p_hwfn,
64 				     struct qed_db_recovery_entry *db_entry,
65 				     char *action)
66 {
67 	DP_VERBOSE(p_hwfn,
68 		   QED_MSG_SPQ,
69 		   "(%s: db_entry %p, addr %p, data %p, width %s, %s space, hwfn %d)\n",
70 		   action,
71 		   db_entry,
72 		   db_entry->db_addr,
73 		   db_entry->db_data,
74 		   db_entry->db_width == DB_REC_WIDTH_32B ? "32b" : "64b",
75 		   db_entry->db_space == DB_REC_USER ? "user" : "kernel",
76 		   db_entry->hwfn_idx);
77 }
78 
79 /* 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)80 static bool qed_db_rec_sanity(struct qed_dev *cdev,
81 			      void __iomem *db_addr,
82 			      enum qed_db_rec_width db_width,
83 			      void *db_data)
84 {
85 	u32 width = (db_width == DB_REC_WIDTH_32B) ? 32 : 64;
86 
87 	/* Make sure doorbell address is within the doorbell bar */
88 	if (db_addr < cdev->doorbells ||
89 	    (u8 __iomem *)db_addr + width >
90 	    (u8 __iomem *)cdev->doorbells + cdev->db_size) {
91 		WARN(true,
92 		     "Illegal doorbell address: %p. Legal range for doorbell addresses is [%p..%p]\n",
93 		     db_addr,
94 		     cdev->doorbells,
95 		     (u8 __iomem *)cdev->doorbells + cdev->db_size);
96 		return false;
97 	}
98 
99 	/* ake sure doorbell data pointer is not null */
100 	if (!db_data) {
101 		WARN(true, "Illegal doorbell data pointer: %p", db_data);
102 		return false;
103 	}
104 
105 	return true;
106 }
107 
108 /* Find hwfn according to the doorbell address */
qed_db_rec_find_hwfn(struct qed_dev * cdev,void __iomem * db_addr)109 static struct qed_hwfn *qed_db_rec_find_hwfn(struct qed_dev *cdev,
110 					     void __iomem *db_addr)
111 {
112 	struct qed_hwfn *p_hwfn;
113 
114 	/* In CMT doorbell bar is split down the middle between engine 0 and enigne 1 */
115 	if (cdev->num_hwfns > 1)
116 		p_hwfn = db_addr < cdev->hwfns[1].doorbells ?
117 		    &cdev->hwfns[0] : &cdev->hwfns[1];
118 	else
119 		p_hwfn = QED_LEADING_HWFN(cdev);
120 
121 	return p_hwfn;
122 }
123 
124 /* 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)125 int qed_db_recovery_add(struct qed_dev *cdev,
126 			void __iomem *db_addr,
127 			void *db_data,
128 			enum qed_db_rec_width db_width,
129 			enum qed_db_rec_space db_space)
130 {
131 	struct qed_db_recovery_entry *db_entry;
132 	struct qed_hwfn *p_hwfn;
133 
134 	/* Shortcircuit VFs, for now */
135 	if (IS_VF(cdev)) {
136 		DP_VERBOSE(cdev,
137 			   QED_MSG_IOV, "db recovery - skipping VF doorbell\n");
138 		return 0;
139 	}
140 
141 	/* Sanitize doorbell address */
142 	if (!qed_db_rec_sanity(cdev, db_addr, db_width, db_data))
143 		return -EINVAL;
144 
145 	/* Obtain hwfn from doorbell address */
146 	p_hwfn = qed_db_rec_find_hwfn(cdev, db_addr);
147 
148 	/* Create entry */
149 	db_entry = kzalloc(sizeof(*db_entry), GFP_KERNEL);
150 	if (!db_entry) {
151 		DP_NOTICE(cdev, "Failed to allocate a db recovery entry\n");
152 		return -ENOMEM;
153 	}
154 
155 	/* Populate entry */
156 	db_entry->db_addr = db_addr;
157 	db_entry->db_data = db_data;
158 	db_entry->db_width = db_width;
159 	db_entry->db_space = db_space;
160 	db_entry->hwfn_idx = p_hwfn->my_id;
161 
162 	/* Display */
163 	qed_db_recovery_dp_entry(p_hwfn, db_entry, "Adding");
164 
165 	/* Protect the list */
166 	spin_lock_bh(&p_hwfn->db_recovery_info.lock);
167 	list_add_tail(&db_entry->list_entry, &p_hwfn->db_recovery_info.list);
168 	spin_unlock_bh(&p_hwfn->db_recovery_info.lock);
169 
170 	return 0;
171 }
172 
173 /* Remove an entry from the doorbell recovery mechanism */
qed_db_recovery_del(struct qed_dev * cdev,void __iomem * db_addr,void * db_data)174 int qed_db_recovery_del(struct qed_dev *cdev,
175 			void __iomem *db_addr, void *db_data)
176 {
177 	struct qed_db_recovery_entry *db_entry = NULL;
178 	struct qed_hwfn *p_hwfn;
179 	int rc = -EINVAL;
180 
181 	/* Shortcircuit VFs, for now */
182 	if (IS_VF(cdev)) {
183 		DP_VERBOSE(cdev,
184 			   QED_MSG_IOV, "db recovery - skipping VF doorbell\n");
185 		return 0;
186 	}
187 
188 	/* Obtain hwfn from doorbell address */
189 	p_hwfn = qed_db_rec_find_hwfn(cdev, db_addr);
190 
191 	/* Protect the list */
192 	spin_lock_bh(&p_hwfn->db_recovery_info.lock);
193 	list_for_each_entry(db_entry,
194 			    &p_hwfn->db_recovery_info.list, list_entry) {
195 		/* search according to db_data addr since db_addr is not unique (roce) */
196 		if (db_entry->db_data == db_data) {
197 			qed_db_recovery_dp_entry(p_hwfn, db_entry, "Deleting");
198 			list_del(&db_entry->list_entry);
199 			rc = 0;
200 			break;
201 		}
202 	}
203 
204 	spin_unlock_bh(&p_hwfn->db_recovery_info.lock);
205 
206 	if (rc == -EINVAL)
207 
208 		DP_NOTICE(p_hwfn,
209 			  "Failed to find element in list. Key (db_data addr) was %p. db_addr was %p\n",
210 			  db_data, db_addr);
211 	else
212 		kfree(db_entry);
213 
214 	return rc;
215 }
216 
217 /* Initialize the doorbell recovery mechanism */
qed_db_recovery_setup(struct qed_hwfn * p_hwfn)218 static int qed_db_recovery_setup(struct qed_hwfn *p_hwfn)
219 {
220 	DP_VERBOSE(p_hwfn, QED_MSG_SPQ, "Setting up db recovery\n");
221 
222 	/* Make sure db_size was set in cdev */
223 	if (!p_hwfn->cdev->db_size) {
224 		DP_ERR(p_hwfn->cdev, "db_size not set\n");
225 		return -EINVAL;
226 	}
227 
228 	INIT_LIST_HEAD(&p_hwfn->db_recovery_info.list);
229 	spin_lock_init(&p_hwfn->db_recovery_info.lock);
230 	p_hwfn->db_recovery_info.db_recovery_counter = 0;
231 
232 	return 0;
233 }
234 
235 /* Destroy the doorbell recovery mechanism */
qed_db_recovery_teardown(struct qed_hwfn * p_hwfn)236 static void qed_db_recovery_teardown(struct qed_hwfn *p_hwfn)
237 {
238 	struct qed_db_recovery_entry *db_entry = NULL;
239 
240 	DP_VERBOSE(p_hwfn, QED_MSG_SPQ, "Tearing down db recovery\n");
241 	if (!list_empty(&p_hwfn->db_recovery_info.list)) {
242 		DP_VERBOSE(p_hwfn,
243 			   QED_MSG_SPQ,
244 			   "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");
245 		while (!list_empty(&p_hwfn->db_recovery_info.list)) {
246 			db_entry =
247 			    list_first_entry(&p_hwfn->db_recovery_info.list,
248 					     struct qed_db_recovery_entry,
249 					     list_entry);
250 			qed_db_recovery_dp_entry(p_hwfn, db_entry, "Purging");
251 			list_del(&db_entry->list_entry);
252 			kfree(db_entry);
253 		}
254 	}
255 	p_hwfn->db_recovery_info.db_recovery_counter = 0;
256 }
257 
258 /* 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)259 static void qed_db_recovery_ring(struct qed_hwfn *p_hwfn,
260 				 struct qed_db_recovery_entry *db_entry)
261 {
262 	/* Print according to width */
263 	if (db_entry->db_width == DB_REC_WIDTH_32B) {
264 		DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
265 			   "ringing doorbell address %p data %x\n",
266 			   db_entry->db_addr,
267 			   *(u32 *)db_entry->db_data);
268 	} else {
269 		DP_VERBOSE(p_hwfn, QED_MSG_SPQ,
270 			   "ringing doorbell address %p data %llx\n",
271 			   db_entry->db_addr,
272 			   *(u64 *)(db_entry->db_data));
273 	}
274 
275 	/* Sanity */
276 	if (!qed_db_rec_sanity(p_hwfn->cdev, db_entry->db_addr,
277 			       db_entry->db_width, db_entry->db_data))
278 		return;
279 
280 	/* Flush the write combined buffer. Since there are multiple doorbelling
281 	 * entities using the same address, if we don't flush, a transaction
282 	 * could be lost.
283 	 */
284 	wmb();
285 
286 	/* Ring the doorbell */
287 	if (db_entry->db_width == DB_REC_WIDTH_32B)
288 		DIRECT_REG_WR(db_entry->db_addr,
289 			      *(u32 *)(db_entry->db_data));
290 	else
291 		DIRECT_REG_WR64(db_entry->db_addr,
292 				*(u64 *)(db_entry->db_data));
293 
294 	/* Flush the write combined buffer. Next doorbell may come from a
295 	 * different entity to the same address...
296 	 */
297 	wmb();
298 }
299 
300 /* Traverse the doorbell recovery entry list and ring all the doorbells */
qed_db_recovery_execute(struct qed_hwfn * p_hwfn)301 void qed_db_recovery_execute(struct qed_hwfn *p_hwfn)
302 {
303 	struct qed_db_recovery_entry *db_entry = NULL;
304 
305 	DP_NOTICE(p_hwfn, "Executing doorbell recovery. Counter was %d\n",
306 		  p_hwfn->db_recovery_info.db_recovery_counter);
307 
308 	/* Track amount of times recovery was executed */
309 	p_hwfn->db_recovery_info.db_recovery_counter++;
310 
311 	/* Protect the list */
312 	spin_lock_bh(&p_hwfn->db_recovery_info.lock);
313 	list_for_each_entry(db_entry,
314 			    &p_hwfn->db_recovery_info.list, list_entry)
315 		qed_db_recovery_ring(p_hwfn, db_entry);
316 	spin_unlock_bh(&p_hwfn->db_recovery_info.lock);
317 }
318 
319 /******************** Doorbell Recovery end ****************/
320 
321 /********************************** NIG LLH ***********************************/
322 
323 enum qed_llh_filter_type {
324 	QED_LLH_FILTER_TYPE_MAC,
325 	QED_LLH_FILTER_TYPE_PROTOCOL,
326 };
327 
328 struct qed_llh_mac_filter {
329 	u8 addr[ETH_ALEN];
330 };
331 
332 struct qed_llh_protocol_filter {
333 	enum qed_llh_prot_filter_type_t type;
334 	u16 source_port_or_eth_type;
335 	u16 dest_port;
336 };
337 
338 union qed_llh_filter {
339 	struct qed_llh_mac_filter mac;
340 	struct qed_llh_protocol_filter protocol;
341 };
342 
343 struct qed_llh_filter_info {
344 	bool b_enabled;
345 	u32 ref_cnt;
346 	enum qed_llh_filter_type type;
347 	union qed_llh_filter filter;
348 };
349 
350 struct qed_llh_info {
351 	/* Number of LLH filters banks */
352 	u8 num_ppfid;
353 
354 #define MAX_NUM_PPFID   8
355 	u8 ppfid_array[MAX_NUM_PPFID];
356 
357 	/* Array of filters arrays:
358 	 * "num_ppfid" elements of filters banks, where each is an array of
359 	 * "NIG_REG_LLH_FUNC_FILTER_EN_SIZE" filters.
360 	 */
361 	struct qed_llh_filter_info **pp_filters;
362 };
363 
qed_llh_free(struct qed_dev * cdev)364 static void qed_llh_free(struct qed_dev *cdev)
365 {
366 	struct qed_llh_info *p_llh_info = cdev->p_llh_info;
367 	u32 i;
368 
369 	if (p_llh_info) {
370 		if (p_llh_info->pp_filters)
371 			for (i = 0; i < p_llh_info->num_ppfid; i++)
372 				kfree(p_llh_info->pp_filters[i]);
373 
374 		kfree(p_llh_info->pp_filters);
375 	}
376 
377 	kfree(p_llh_info);
378 	cdev->p_llh_info = NULL;
379 }
380 
qed_llh_alloc(struct qed_dev * cdev)381 static int qed_llh_alloc(struct qed_dev *cdev)
382 {
383 	struct qed_llh_info *p_llh_info;
384 	u32 size, i;
385 
386 	p_llh_info = kzalloc(sizeof(*p_llh_info), GFP_KERNEL);
387 	if (!p_llh_info)
388 		return -ENOMEM;
389 	cdev->p_llh_info = p_llh_info;
390 
391 	for (i = 0; i < MAX_NUM_PPFID; i++) {
392 		if (!(cdev->ppfid_bitmap & (0x1 << i)))
393 			continue;
394 
395 		p_llh_info->ppfid_array[p_llh_info->num_ppfid] = i;
396 		DP_VERBOSE(cdev, QED_MSG_SP, "ppfid_array[%d] = %u\n",
397 			   p_llh_info->num_ppfid, i);
398 		p_llh_info->num_ppfid++;
399 	}
400 
401 	size = p_llh_info->num_ppfid * sizeof(*p_llh_info->pp_filters);
402 	p_llh_info->pp_filters = kzalloc(size, GFP_KERNEL);
403 	if (!p_llh_info->pp_filters)
404 		return -ENOMEM;
405 
406 	size = NIG_REG_LLH_FUNC_FILTER_EN_SIZE *
407 	    sizeof(**p_llh_info->pp_filters);
408 	for (i = 0; i < p_llh_info->num_ppfid; i++) {
409 		p_llh_info->pp_filters[i] = kzalloc(size, GFP_KERNEL);
410 		if (!p_llh_info->pp_filters[i])
411 			return -ENOMEM;
412 	}
413 
414 	return 0;
415 }
416 
qed_llh_shadow_sanity(struct qed_dev * cdev,u8 ppfid,u8 filter_idx,const char * action)417 static int qed_llh_shadow_sanity(struct qed_dev *cdev,
418 				 u8 ppfid, u8 filter_idx, const char *action)
419 {
420 	struct qed_llh_info *p_llh_info = cdev->p_llh_info;
421 
422 	if (ppfid >= p_llh_info->num_ppfid) {
423 		DP_NOTICE(cdev,
424 			  "LLH shadow [%s]: using ppfid %d while only %d ppfids are available\n",
425 			  action, ppfid, p_llh_info->num_ppfid);
426 		return -EINVAL;
427 	}
428 
429 	if (filter_idx >= NIG_REG_LLH_FUNC_FILTER_EN_SIZE) {
430 		DP_NOTICE(cdev,
431 			  "LLH shadow [%s]: using filter_idx %d while only %d filters are available\n",
432 			  action, filter_idx, NIG_REG_LLH_FUNC_FILTER_EN_SIZE);
433 		return -EINVAL;
434 	}
435 
436 	return 0;
437 }
438 
439 #define QED_LLH_INVALID_FILTER_IDX      0xff
440 
441 static int
qed_llh_shadow_search_filter(struct qed_dev * cdev,u8 ppfid,union qed_llh_filter * p_filter,u8 * p_filter_idx)442 qed_llh_shadow_search_filter(struct qed_dev *cdev,
443 			     u8 ppfid,
444 			     union qed_llh_filter *p_filter, u8 *p_filter_idx)
445 {
446 	struct qed_llh_info *p_llh_info = cdev->p_llh_info;
447 	struct qed_llh_filter_info *p_filters;
448 	int rc;
449 	u8 i;
450 
451 	rc = qed_llh_shadow_sanity(cdev, ppfid, 0, "search");
452 	if (rc)
453 		return rc;
454 
455 	*p_filter_idx = QED_LLH_INVALID_FILTER_IDX;
456 
457 	p_filters = p_llh_info->pp_filters[ppfid];
458 	for (i = 0; i < NIG_REG_LLH_FUNC_FILTER_EN_SIZE; i++) {
459 		if (!memcmp(p_filter, &p_filters[i].filter,
460 			    sizeof(*p_filter))) {
461 			*p_filter_idx = i;
462 			break;
463 		}
464 	}
465 
466 	return 0;
467 }
468 
469 static int
qed_llh_shadow_get_free_idx(struct qed_dev * cdev,u8 ppfid,u8 * p_filter_idx)470 qed_llh_shadow_get_free_idx(struct qed_dev *cdev, u8 ppfid, u8 *p_filter_idx)
471 {
472 	struct qed_llh_info *p_llh_info = cdev->p_llh_info;
473 	struct qed_llh_filter_info *p_filters;
474 	int rc;
475 	u8 i;
476 
477 	rc = qed_llh_shadow_sanity(cdev, ppfid, 0, "get_free_idx");
478 	if (rc)
479 		return rc;
480 
481 	*p_filter_idx = QED_LLH_INVALID_FILTER_IDX;
482 
483 	p_filters = p_llh_info->pp_filters[ppfid];
484 	for (i = 0; i < NIG_REG_LLH_FUNC_FILTER_EN_SIZE; i++) {
485 		if (!p_filters[i].b_enabled) {
486 			*p_filter_idx = i;
487 			break;
488 		}
489 	}
490 
491 	return 0;
492 }
493 
494 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)495 __qed_llh_shadow_add_filter(struct qed_dev *cdev,
496 			    u8 ppfid,
497 			    u8 filter_idx,
498 			    enum qed_llh_filter_type type,
499 			    union qed_llh_filter *p_filter, u32 *p_ref_cnt)
500 {
501 	struct qed_llh_info *p_llh_info = cdev->p_llh_info;
502 	struct qed_llh_filter_info *p_filters;
503 	int rc;
504 
505 	rc = qed_llh_shadow_sanity(cdev, ppfid, filter_idx, "add");
506 	if (rc)
507 		return rc;
508 
509 	p_filters = p_llh_info->pp_filters[ppfid];
510 	if (!p_filters[filter_idx].ref_cnt) {
511 		p_filters[filter_idx].b_enabled = true;
512 		p_filters[filter_idx].type = type;
513 		memcpy(&p_filters[filter_idx].filter, p_filter,
514 		       sizeof(p_filters[filter_idx].filter));
515 	}
516 
517 	*p_ref_cnt = ++p_filters[filter_idx].ref_cnt;
518 
519 	return 0;
520 }
521 
522 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)523 qed_llh_shadow_add_filter(struct qed_dev *cdev,
524 			  u8 ppfid,
525 			  enum qed_llh_filter_type type,
526 			  union qed_llh_filter *p_filter,
527 			  u8 *p_filter_idx, u32 *p_ref_cnt)
528 {
529 	int rc;
530 
531 	/* Check if the same filter already exist */
532 	rc = qed_llh_shadow_search_filter(cdev, ppfid, p_filter, p_filter_idx);
533 	if (rc)
534 		return rc;
535 
536 	/* Find a new entry in case of a new filter */
537 	if (*p_filter_idx == QED_LLH_INVALID_FILTER_IDX) {
538 		rc = qed_llh_shadow_get_free_idx(cdev, ppfid, p_filter_idx);
539 		if (rc)
540 			return rc;
541 	}
542 
543 	/* No free entry was found */
544 	if (*p_filter_idx == QED_LLH_INVALID_FILTER_IDX) {
545 		DP_NOTICE(cdev,
546 			  "Failed to find an empty LLH filter to utilize [ppfid %d]\n",
547 			  ppfid);
548 		return -EINVAL;
549 	}
550 
551 	return __qed_llh_shadow_add_filter(cdev, ppfid, *p_filter_idx, type,
552 					   p_filter, p_ref_cnt);
553 }
554 
555 static int
__qed_llh_shadow_remove_filter(struct qed_dev * cdev,u8 ppfid,u8 filter_idx,u32 * p_ref_cnt)556 __qed_llh_shadow_remove_filter(struct qed_dev *cdev,
557 			       u8 ppfid, u8 filter_idx, u32 *p_ref_cnt)
558 {
559 	struct qed_llh_info *p_llh_info = cdev->p_llh_info;
560 	struct qed_llh_filter_info *p_filters;
561 	int rc;
562 
563 	rc = qed_llh_shadow_sanity(cdev, ppfid, filter_idx, "remove");
564 	if (rc)
565 		return rc;
566 
567 	p_filters = p_llh_info->pp_filters[ppfid];
568 	if (!p_filters[filter_idx].ref_cnt) {
569 		DP_NOTICE(cdev,
570 			  "LLH shadow: trying to remove a filter with ref_cnt=0\n");
571 		return -EINVAL;
572 	}
573 
574 	*p_ref_cnt = --p_filters[filter_idx].ref_cnt;
575 	if (!p_filters[filter_idx].ref_cnt)
576 		memset(&p_filters[filter_idx],
577 		       0, sizeof(p_filters[filter_idx]));
578 
579 	return 0;
580 }
581 
582 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)583 qed_llh_shadow_remove_filter(struct qed_dev *cdev,
584 			     u8 ppfid,
585 			     union qed_llh_filter *p_filter,
586 			     u8 *p_filter_idx, u32 *p_ref_cnt)
587 {
588 	int rc;
589 
590 	rc = qed_llh_shadow_search_filter(cdev, ppfid, p_filter, p_filter_idx);
591 	if (rc)
592 		return rc;
593 
594 	/* No matching filter was found */
595 	if (*p_filter_idx == QED_LLH_INVALID_FILTER_IDX) {
596 		DP_NOTICE(cdev, "Failed to find a filter in the LLH shadow\n");
597 		return -EINVAL;
598 	}
599 
600 	return __qed_llh_shadow_remove_filter(cdev, ppfid, *p_filter_idx,
601 					      p_ref_cnt);
602 }
603 
qed_llh_abs_ppfid(struct qed_dev * cdev,u8 ppfid,u8 * p_abs_ppfid)604 static int qed_llh_abs_ppfid(struct qed_dev *cdev, u8 ppfid, u8 *p_abs_ppfid)
605 {
606 	struct qed_llh_info *p_llh_info = cdev->p_llh_info;
607 
608 	if (ppfid >= p_llh_info->num_ppfid) {
609 		DP_NOTICE(cdev,
610 			  "ppfid %d is not valid, available indices are 0..%d\n",
611 			  ppfid, p_llh_info->num_ppfid - 1);
612 		*p_abs_ppfid = 0;
613 		return -EINVAL;
614 	}
615 
616 	*p_abs_ppfid = p_llh_info->ppfid_array[ppfid];
617 
618 	return 0;
619 }
620 
621 static int
qed_llh_set_engine_affin(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)622 qed_llh_set_engine_affin(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
623 {
624 	struct qed_dev *cdev = p_hwfn->cdev;
625 	enum qed_eng eng;
626 	u8 ppfid;
627 	int rc;
628 
629 	rc = qed_mcp_get_engine_config(p_hwfn, p_ptt);
630 	if (rc != 0 && rc != -EOPNOTSUPP) {
631 		DP_NOTICE(p_hwfn,
632 			  "Failed to get the engine affinity configuration\n");
633 		return rc;
634 	}
635 
636 	/* RoCE PF is bound to a single engine */
637 	if (QED_IS_ROCE_PERSONALITY(p_hwfn)) {
638 		eng = cdev->fir_affin ? QED_ENG1 : QED_ENG0;
639 		rc = qed_llh_set_roce_affinity(cdev, eng);
640 		if (rc) {
641 			DP_NOTICE(cdev,
642 				  "Failed to set the RoCE engine affinity\n");
643 			return rc;
644 		}
645 
646 		DP_VERBOSE(cdev,
647 			   QED_MSG_SP,
648 			   "LLH: Set the engine affinity of RoCE packets as %d\n",
649 			   eng);
650 	}
651 
652 	/* Storage PF is bound to a single engine while L2 PF uses both */
653 	if (QED_IS_FCOE_PERSONALITY(p_hwfn) || QED_IS_ISCSI_PERSONALITY(p_hwfn) ||
654 	    QED_IS_NVMETCP_PERSONALITY(p_hwfn))
655 		eng = cdev->fir_affin ? QED_ENG1 : QED_ENG0;
656 	else			/* L2_PERSONALITY */
657 		eng = QED_BOTH_ENG;
658 
659 	for (ppfid = 0; ppfid < cdev->p_llh_info->num_ppfid; ppfid++) {
660 		rc = qed_llh_set_ppfid_affinity(cdev, ppfid, eng);
661 		if (rc) {
662 			DP_NOTICE(cdev,
663 				  "Failed to set the engine affinity of ppfid %d\n",
664 				  ppfid);
665 			return rc;
666 		}
667 	}
668 
669 	DP_VERBOSE(cdev, QED_MSG_SP,
670 		   "LLH: Set the engine affinity of non-RoCE packets as %d\n",
671 		   eng);
672 
673 	return 0;
674 }
675 
qed_llh_hw_init_pf(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)676 static int qed_llh_hw_init_pf(struct qed_hwfn *p_hwfn,
677 			      struct qed_ptt *p_ptt)
678 {
679 	struct qed_dev *cdev = p_hwfn->cdev;
680 	u8 ppfid, abs_ppfid;
681 	int rc;
682 
683 	for (ppfid = 0; ppfid < cdev->p_llh_info->num_ppfid; ppfid++) {
684 		u32 addr;
685 
686 		rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
687 		if (rc)
688 			return rc;
689 
690 		addr = NIG_REG_LLH_PPFID2PFID_TBL_0 + abs_ppfid * 0x4;
691 		qed_wr(p_hwfn, p_ptt, addr, p_hwfn->rel_pf_id);
692 	}
693 
694 	if (test_bit(QED_MF_LLH_MAC_CLSS, &cdev->mf_bits) &&
695 	    !QED_IS_FCOE_PERSONALITY(p_hwfn)) {
696 		rc = qed_llh_add_mac_filter(cdev, 0,
697 					    p_hwfn->hw_info.hw_mac_addr);
698 		if (rc)
699 			DP_NOTICE(cdev,
700 				  "Failed to add an LLH filter with the primary MAC\n");
701 	}
702 
703 	if (QED_IS_CMT(cdev)) {
704 		rc = qed_llh_set_engine_affin(p_hwfn, p_ptt);
705 		if (rc)
706 			return rc;
707 	}
708 
709 	return 0;
710 }
711 
qed_llh_get_num_ppfid(struct qed_dev * cdev)712 u8 qed_llh_get_num_ppfid(struct qed_dev *cdev)
713 {
714 	return cdev->p_llh_info->num_ppfid;
715 }
716 
717 #define NIG_REG_PPF_TO_ENGINE_SEL_ROCE_MASK             0x3
718 #define NIG_REG_PPF_TO_ENGINE_SEL_ROCE_SHIFT            0
719 #define NIG_REG_PPF_TO_ENGINE_SEL_NON_ROCE_MASK         0x3
720 #define NIG_REG_PPF_TO_ENGINE_SEL_NON_ROCE_SHIFT        2
721 
qed_llh_set_ppfid_affinity(struct qed_dev * cdev,u8 ppfid,enum qed_eng eng)722 int qed_llh_set_ppfid_affinity(struct qed_dev *cdev, u8 ppfid, enum qed_eng eng)
723 {
724 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
725 	struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
726 	u32 addr, val, eng_sel;
727 	u8 abs_ppfid;
728 	int rc = 0;
729 
730 	if (!p_ptt)
731 		return -EAGAIN;
732 
733 	if (!QED_IS_CMT(cdev))
734 		goto out;
735 
736 	rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
737 	if (rc)
738 		goto out;
739 
740 	switch (eng) {
741 	case QED_ENG0:
742 		eng_sel = 0;
743 		break;
744 	case QED_ENG1:
745 		eng_sel = 1;
746 		break;
747 	case QED_BOTH_ENG:
748 		eng_sel = 2;
749 		break;
750 	default:
751 		DP_NOTICE(cdev, "Invalid affinity value for ppfid [%d]\n", eng);
752 		rc = -EINVAL;
753 		goto out;
754 	}
755 
756 	addr = NIG_REG_PPF_TO_ENGINE_SEL + abs_ppfid * 0x4;
757 	val = qed_rd(p_hwfn, p_ptt, addr);
758 	SET_FIELD(val, NIG_REG_PPF_TO_ENGINE_SEL_NON_ROCE, eng_sel);
759 	qed_wr(p_hwfn, p_ptt, addr, val);
760 
761 	/* The iWARP affinity is set as the affinity of ppfid 0 */
762 	if (!ppfid && QED_IS_IWARP_PERSONALITY(p_hwfn))
763 		cdev->iwarp_affin = (eng == QED_ENG1) ? 1 : 0;
764 out:
765 	qed_ptt_release(p_hwfn, p_ptt);
766 
767 	return rc;
768 }
769 
qed_llh_set_roce_affinity(struct qed_dev * cdev,enum qed_eng eng)770 int qed_llh_set_roce_affinity(struct qed_dev *cdev, enum qed_eng eng)
771 {
772 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
773 	struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
774 	u32 addr, val, eng_sel;
775 	u8 ppfid, abs_ppfid;
776 	int rc = 0;
777 
778 	if (!p_ptt)
779 		return -EAGAIN;
780 
781 	if (!QED_IS_CMT(cdev))
782 		goto out;
783 
784 	switch (eng) {
785 	case QED_ENG0:
786 		eng_sel = 0;
787 		break;
788 	case QED_ENG1:
789 		eng_sel = 1;
790 		break;
791 	case QED_BOTH_ENG:
792 		eng_sel = 2;
793 		qed_wr(p_hwfn, p_ptt, NIG_REG_LLH_ENG_CLS_ROCE_QP_SEL,
794 		       0xf);  /* QP bit 15 */
795 		break;
796 	default:
797 		DP_NOTICE(cdev, "Invalid affinity value for RoCE [%d]\n", eng);
798 		rc = -EINVAL;
799 		goto out;
800 	}
801 
802 	for (ppfid = 0; ppfid < cdev->p_llh_info->num_ppfid; ppfid++) {
803 		rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
804 		if (rc)
805 			goto out;
806 
807 		addr = NIG_REG_PPF_TO_ENGINE_SEL + abs_ppfid * 0x4;
808 		val = qed_rd(p_hwfn, p_ptt, addr);
809 		SET_FIELD(val, NIG_REG_PPF_TO_ENGINE_SEL_ROCE, eng_sel);
810 		qed_wr(p_hwfn, p_ptt, addr, val);
811 	}
812 out:
813 	qed_ptt_release(p_hwfn, p_ptt);
814 
815 	return rc;
816 }
817 
818 struct qed_llh_filter_details {
819 	u64 value;
820 	u32 mode;
821 	u32 protocol_type;
822 	u32 hdr_sel;
823 	u32 enable;
824 };
825 
826 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)827 qed_llh_access_filter(struct qed_hwfn *p_hwfn,
828 		      struct qed_ptt *p_ptt,
829 		      u8 abs_ppfid,
830 		      u8 filter_idx,
831 		      struct qed_llh_filter_details *p_details)
832 {
833 	struct qed_dmae_params params = {0};
834 	u32 addr;
835 	u8 pfid;
836 	int rc;
837 
838 	/* The NIG/LLH registers that are accessed in this function have only 16
839 	 * rows which are exposed to a PF. I.e. only the 16 filters of its
840 	 * default ppfid. Accessing filters of other ppfids requires pretending
841 	 * to another PFs.
842 	 * The calculation of PPFID->PFID in AH is based on the relative index
843 	 * of a PF on its port.
844 	 * For BB the pfid is actually the abs_ppfid.
845 	 */
846 	if (QED_IS_BB(p_hwfn->cdev))
847 		pfid = abs_ppfid;
848 	else
849 		pfid = abs_ppfid * p_hwfn->cdev->num_ports_in_engine +
850 		    MFW_PORT(p_hwfn);
851 
852 	/* Filter enable - should be done first when removing a filter */
853 	if (!p_details->enable) {
854 		qed_fid_pretend(p_hwfn, p_ptt,
855 				pfid << PXP_PRETEND_CONCRETE_FID_PFID_SHIFT);
856 
857 		addr = NIG_REG_LLH_FUNC_FILTER_EN + filter_idx * 0x4;
858 		qed_wr(p_hwfn, p_ptt, addr, p_details->enable);
859 
860 		qed_fid_pretend(p_hwfn, p_ptt,
861 				p_hwfn->rel_pf_id <<
862 				PXP_PRETEND_CONCRETE_FID_PFID_SHIFT);
863 	}
864 
865 	/* Filter value */
866 	addr = NIG_REG_LLH_FUNC_FILTER_VALUE + 2 * filter_idx * 0x4;
867 
868 	SET_FIELD(params.flags, QED_DMAE_PARAMS_DST_PF_VALID, 0x1);
869 	params.dst_pfid = pfid;
870 	rc = qed_dmae_host2grc(p_hwfn,
871 			       p_ptt,
872 			       (u64)(uintptr_t)&p_details->value,
873 			       addr, 2 /* size_in_dwords */,
874 			       &params);
875 	if (rc)
876 		return rc;
877 
878 	qed_fid_pretend(p_hwfn, p_ptt,
879 			pfid << PXP_PRETEND_CONCRETE_FID_PFID_SHIFT);
880 
881 	/* Filter mode */
882 	addr = NIG_REG_LLH_FUNC_FILTER_MODE + filter_idx * 0x4;
883 	qed_wr(p_hwfn, p_ptt, addr, p_details->mode);
884 
885 	/* Filter protocol type */
886 	addr = NIG_REG_LLH_FUNC_FILTER_PROTOCOL_TYPE + filter_idx * 0x4;
887 	qed_wr(p_hwfn, p_ptt, addr, p_details->protocol_type);
888 
889 	/* Filter header select */
890 	addr = NIG_REG_LLH_FUNC_FILTER_HDR_SEL + filter_idx * 0x4;
891 	qed_wr(p_hwfn, p_ptt, addr, p_details->hdr_sel);
892 
893 	/* Filter enable - should be done last when adding a filter */
894 	if (p_details->enable) {
895 		addr = NIG_REG_LLH_FUNC_FILTER_EN + filter_idx * 0x4;
896 		qed_wr(p_hwfn, p_ptt, addr, p_details->enable);
897 	}
898 
899 	qed_fid_pretend(p_hwfn, p_ptt,
900 			p_hwfn->rel_pf_id <<
901 			PXP_PRETEND_CONCRETE_FID_PFID_SHIFT);
902 
903 	return 0;
904 }
905 
906 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)907 qed_llh_add_filter(struct qed_hwfn *p_hwfn,
908 		   struct qed_ptt *p_ptt,
909 		   u8 abs_ppfid,
910 		   u8 filter_idx, u8 filter_prot_type, u32 high, u32 low)
911 {
912 	struct qed_llh_filter_details filter_details;
913 
914 	filter_details.enable = 1;
915 	filter_details.value = ((u64)high << 32) | low;
916 	filter_details.hdr_sel = 0;
917 	filter_details.protocol_type = filter_prot_type;
918 	/* Mode: 0: MAC-address classification 1: protocol classification */
919 	filter_details.mode = filter_prot_type ? 1 : 0;
920 
921 	return qed_llh_access_filter(p_hwfn, p_ptt, abs_ppfid, filter_idx,
922 				     &filter_details);
923 }
924 
925 static int
qed_llh_remove_filter(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u8 abs_ppfid,u8 filter_idx)926 qed_llh_remove_filter(struct qed_hwfn *p_hwfn,
927 		      struct qed_ptt *p_ptt, u8 abs_ppfid, u8 filter_idx)
928 {
929 	struct qed_llh_filter_details filter_details = {0};
930 
931 	return qed_llh_access_filter(p_hwfn, p_ptt, abs_ppfid, filter_idx,
932 				     &filter_details);
933 }
934 
qed_llh_add_mac_filter(struct qed_dev * cdev,u8 ppfid,const u8 mac_addr[ETH_ALEN])935 int qed_llh_add_mac_filter(struct qed_dev *cdev,
936 			   u8 ppfid, const u8 mac_addr[ETH_ALEN])
937 {
938 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
939 	struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
940 	union qed_llh_filter filter = {};
941 	u8 filter_idx, abs_ppfid = 0;
942 	u32 high, low, ref_cnt;
943 	int rc = 0;
944 
945 	if (!p_ptt)
946 		return -EAGAIN;
947 
948 	if (!test_bit(QED_MF_LLH_MAC_CLSS, &cdev->mf_bits))
949 		goto out;
950 
951 	memcpy(filter.mac.addr, mac_addr, ETH_ALEN);
952 	rc = qed_llh_shadow_add_filter(cdev, ppfid,
953 				       QED_LLH_FILTER_TYPE_MAC,
954 				       &filter, &filter_idx, &ref_cnt);
955 	if (rc)
956 		goto err;
957 
958 	/* Configure the LLH only in case of a new the filter */
959 	if (ref_cnt == 1) {
960 		rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
961 		if (rc)
962 			goto err;
963 
964 		high = mac_addr[1] | (mac_addr[0] << 8);
965 		low = mac_addr[5] | (mac_addr[4] << 8) | (mac_addr[3] << 16) |
966 		      (mac_addr[2] << 24);
967 		rc = qed_llh_add_filter(p_hwfn, p_ptt, abs_ppfid, filter_idx,
968 					0, high, low);
969 		if (rc)
970 			goto err;
971 	}
972 
973 	DP_VERBOSE(cdev,
974 		   QED_MSG_SP,
975 		   "LLH: Added MAC filter [%pM] to ppfid %hhd [abs %hhd] at idx %hhd [ref_cnt %d]\n",
976 		   mac_addr, ppfid, abs_ppfid, filter_idx, ref_cnt);
977 
978 	goto out;
979 
980 err:	DP_NOTICE(cdev,
981 		  "LLH: Failed to add MAC filter [%pM] to ppfid %hhd\n",
982 		  mac_addr, ppfid);
983 out:
984 	qed_ptt_release(p_hwfn, p_ptt);
985 
986 	return rc;
987 }
988 
989 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)990 qed_llh_protocol_filter_stringify(struct qed_dev *cdev,
991 				  enum qed_llh_prot_filter_type_t type,
992 				  u16 source_port_or_eth_type,
993 				  u16 dest_port, u8 *str, size_t str_len)
994 {
995 	switch (type) {
996 	case QED_LLH_FILTER_ETHERTYPE:
997 		snprintf(str, str_len, "Ethertype 0x%04x",
998 			 source_port_or_eth_type);
999 		break;
1000 	case QED_LLH_FILTER_TCP_SRC_PORT:
1001 		snprintf(str, str_len, "TCP src port 0x%04x",
1002 			 source_port_or_eth_type);
1003 		break;
1004 	case QED_LLH_FILTER_UDP_SRC_PORT:
1005 		snprintf(str, str_len, "UDP src port 0x%04x",
1006 			 source_port_or_eth_type);
1007 		break;
1008 	case QED_LLH_FILTER_TCP_DEST_PORT:
1009 		snprintf(str, str_len, "TCP dst port 0x%04x", dest_port);
1010 		break;
1011 	case QED_LLH_FILTER_UDP_DEST_PORT:
1012 		snprintf(str, str_len, "UDP dst port 0x%04x", dest_port);
1013 		break;
1014 	case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
1015 		snprintf(str, str_len, "TCP src/dst ports 0x%04x/0x%04x",
1016 			 source_port_or_eth_type, dest_port);
1017 		break;
1018 	case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
1019 		snprintf(str, str_len, "UDP src/dst ports 0x%04x/0x%04x",
1020 			 source_port_or_eth_type, dest_port);
1021 		break;
1022 	default:
1023 		DP_NOTICE(cdev,
1024 			  "Non valid LLH protocol filter type %d\n", type);
1025 		return -EINVAL;
1026 	}
1027 
1028 	return 0;
1029 }
1030 
1031 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)1032 qed_llh_protocol_filter_to_hilo(struct qed_dev *cdev,
1033 				enum qed_llh_prot_filter_type_t type,
1034 				u16 source_port_or_eth_type,
1035 				u16 dest_port, u32 *p_high, u32 *p_low)
1036 {
1037 	*p_high = 0;
1038 	*p_low = 0;
1039 
1040 	switch (type) {
1041 	case QED_LLH_FILTER_ETHERTYPE:
1042 		*p_high = source_port_or_eth_type;
1043 		break;
1044 	case QED_LLH_FILTER_TCP_SRC_PORT:
1045 	case QED_LLH_FILTER_UDP_SRC_PORT:
1046 		*p_low = source_port_or_eth_type << 16;
1047 		break;
1048 	case QED_LLH_FILTER_TCP_DEST_PORT:
1049 	case QED_LLH_FILTER_UDP_DEST_PORT:
1050 		*p_low = dest_port;
1051 		break;
1052 	case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
1053 	case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
1054 		*p_low = (source_port_or_eth_type << 16) | dest_port;
1055 		break;
1056 	default:
1057 		DP_NOTICE(cdev,
1058 			  "Non valid LLH protocol filter type %d\n", type);
1059 		return -EINVAL;
1060 	}
1061 
1062 	return 0;
1063 }
1064 
1065 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)1066 qed_llh_add_protocol_filter(struct qed_dev *cdev,
1067 			    u8 ppfid,
1068 			    enum qed_llh_prot_filter_type_t type,
1069 			    u16 source_port_or_eth_type, u16 dest_port)
1070 {
1071 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
1072 	struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
1073 	u8 filter_idx, abs_ppfid, str[32], type_bitmap;
1074 	union qed_llh_filter filter = {};
1075 	u32 high, low, ref_cnt;
1076 	int rc = 0;
1077 
1078 	if (!p_ptt)
1079 		return -EAGAIN;
1080 
1081 	if (!test_bit(QED_MF_LLH_PROTO_CLSS, &cdev->mf_bits))
1082 		goto out;
1083 
1084 	rc = qed_llh_protocol_filter_stringify(cdev, type,
1085 					       source_port_or_eth_type,
1086 					       dest_port, str, sizeof(str));
1087 	if (rc)
1088 		goto err;
1089 
1090 	filter.protocol.type = type;
1091 	filter.protocol.source_port_or_eth_type = source_port_or_eth_type;
1092 	filter.protocol.dest_port = dest_port;
1093 	rc = qed_llh_shadow_add_filter(cdev,
1094 				       ppfid,
1095 				       QED_LLH_FILTER_TYPE_PROTOCOL,
1096 				       &filter, &filter_idx, &ref_cnt);
1097 	if (rc)
1098 		goto err;
1099 
1100 	rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
1101 	if (rc)
1102 		goto err;
1103 
1104 	/* Configure the LLH only in case of a new the filter */
1105 	if (ref_cnt == 1) {
1106 		rc = qed_llh_protocol_filter_to_hilo(cdev, type,
1107 						     source_port_or_eth_type,
1108 						     dest_port, &high, &low);
1109 		if (rc)
1110 			goto err;
1111 
1112 		type_bitmap = 0x1 << type;
1113 		rc = qed_llh_add_filter(p_hwfn, p_ptt, abs_ppfid,
1114 					filter_idx, type_bitmap, high, low);
1115 		if (rc)
1116 			goto err;
1117 	}
1118 
1119 	DP_VERBOSE(cdev,
1120 		   QED_MSG_SP,
1121 		   "LLH: Added protocol filter [%s] to ppfid %hhd [abs %hhd] at idx %hhd [ref_cnt %d]\n",
1122 		   str, ppfid, abs_ppfid, filter_idx, ref_cnt);
1123 
1124 	goto out;
1125 
1126 err:	DP_NOTICE(p_hwfn,
1127 		  "LLH: Failed to add protocol filter [%s] to ppfid %hhd\n",
1128 		  str, ppfid);
1129 out:
1130 	qed_ptt_release(p_hwfn, p_ptt);
1131 
1132 	return rc;
1133 }
1134 
qed_llh_remove_mac_filter(struct qed_dev * cdev,u8 ppfid,u8 mac_addr[ETH_ALEN])1135 void qed_llh_remove_mac_filter(struct qed_dev *cdev,
1136 			       u8 ppfid, u8 mac_addr[ETH_ALEN])
1137 {
1138 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
1139 	struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
1140 	union qed_llh_filter filter = {};
1141 	u8 filter_idx, abs_ppfid;
1142 	int rc = 0;
1143 	u32 ref_cnt;
1144 
1145 	if (!p_ptt)
1146 		return;
1147 
1148 	if (!test_bit(QED_MF_LLH_MAC_CLSS, &cdev->mf_bits))
1149 		goto out;
1150 
1151 	if (QED_IS_NVMETCP_PERSONALITY(p_hwfn))
1152 		return;
1153 
1154 	ether_addr_copy(filter.mac.addr, mac_addr);
1155 	rc = qed_llh_shadow_remove_filter(cdev, ppfid, &filter, &filter_idx,
1156 					  &ref_cnt);
1157 	if (rc)
1158 		goto err;
1159 
1160 	rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
1161 	if (rc)
1162 		goto err;
1163 
1164 	/* Remove from the LLH in case the filter is not in use */
1165 	if (!ref_cnt) {
1166 		rc = qed_llh_remove_filter(p_hwfn, p_ptt, abs_ppfid,
1167 					   filter_idx);
1168 		if (rc)
1169 			goto err;
1170 	}
1171 
1172 	DP_VERBOSE(cdev,
1173 		   QED_MSG_SP,
1174 		   "LLH: Removed MAC filter [%pM] from ppfid %hhd [abs %hhd] at idx %hhd [ref_cnt %d]\n",
1175 		   mac_addr, ppfid, abs_ppfid, filter_idx, ref_cnt);
1176 
1177 	goto out;
1178 
1179 err:	DP_NOTICE(cdev,
1180 		  "LLH: Failed to remove MAC filter [%pM] from ppfid %hhd\n",
1181 		  mac_addr, ppfid);
1182 out:
1183 	qed_ptt_release(p_hwfn, p_ptt);
1184 }
1185 
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)1186 void qed_llh_remove_protocol_filter(struct qed_dev *cdev,
1187 				    u8 ppfid,
1188 				    enum qed_llh_prot_filter_type_t type,
1189 				    u16 source_port_or_eth_type, u16 dest_port)
1190 {
1191 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
1192 	struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
1193 	u8 filter_idx, abs_ppfid, str[32];
1194 	union qed_llh_filter filter = {};
1195 	int rc = 0;
1196 	u32 ref_cnt;
1197 
1198 	if (!p_ptt)
1199 		return;
1200 
1201 	if (!test_bit(QED_MF_LLH_PROTO_CLSS, &cdev->mf_bits))
1202 		goto out;
1203 
1204 	rc = qed_llh_protocol_filter_stringify(cdev, type,
1205 					       source_port_or_eth_type,
1206 					       dest_port, str, sizeof(str));
1207 	if (rc)
1208 		goto err;
1209 
1210 	filter.protocol.type = type;
1211 	filter.protocol.source_port_or_eth_type = source_port_or_eth_type;
1212 	filter.protocol.dest_port = dest_port;
1213 	rc = qed_llh_shadow_remove_filter(cdev, ppfid, &filter, &filter_idx,
1214 					  &ref_cnt);
1215 	if (rc)
1216 		goto err;
1217 
1218 	rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
1219 	if (rc)
1220 		goto err;
1221 
1222 	/* Remove from the LLH in case the filter is not in use */
1223 	if (!ref_cnt) {
1224 		rc = qed_llh_remove_filter(p_hwfn, p_ptt, abs_ppfid,
1225 					   filter_idx);
1226 		if (rc)
1227 			goto err;
1228 	}
1229 
1230 	DP_VERBOSE(cdev,
1231 		   QED_MSG_SP,
1232 		   "LLH: Removed protocol filter [%s] from ppfid %hhd [abs %hhd] at idx %hhd [ref_cnt %d]\n",
1233 		   str, ppfid, abs_ppfid, filter_idx, ref_cnt);
1234 
1235 	goto out;
1236 
1237 err:	DP_NOTICE(cdev,
1238 		  "LLH: Failed to remove protocol filter [%s] from ppfid %hhd\n",
1239 		  str, ppfid);
1240 out:
1241 	qed_ptt_release(p_hwfn, p_ptt);
1242 }
1243 
1244 /******************************* NIG LLH - End ********************************/
1245 
1246 #define QED_MIN_DPIS            (4)
1247 #define QED_MIN_PWM_REGION      (QED_WID_SIZE * QED_MIN_DPIS)
1248 
qed_hw_bar_size(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,enum BAR_ID bar_id)1249 static u32 qed_hw_bar_size(struct qed_hwfn *p_hwfn,
1250 			   struct qed_ptt *p_ptt, enum BAR_ID bar_id)
1251 {
1252 	u32 bar_reg = (bar_id == BAR_ID_0 ?
1253 		       PGLUE_B_REG_PF_BAR0_SIZE : PGLUE_B_REG_PF_BAR1_SIZE);
1254 	u32 val;
1255 
1256 	if (IS_VF(p_hwfn->cdev))
1257 		return qed_vf_hw_bar_size(p_hwfn, bar_id);
1258 
1259 	val = qed_rd(p_hwfn, p_ptt, bar_reg);
1260 	if (val)
1261 		return 1 << (val + 15);
1262 
1263 	/* Old MFW initialized above registered only conditionally */
1264 	if (p_hwfn->cdev->num_hwfns > 1) {
1265 		DP_INFO(p_hwfn,
1266 			"BAR size not configured. Assuming BAR size of 256kB for GRC and 512kB for DB\n");
1267 			return BAR_ID_0 ? 256 * 1024 : 512 * 1024;
1268 	} else {
1269 		DP_INFO(p_hwfn,
1270 			"BAR size not configured. Assuming BAR size of 512kB for GRC and 512kB for DB\n");
1271 			return 512 * 1024;
1272 	}
1273 }
1274 
qed_init_dp(struct qed_dev * cdev,u32 dp_module,u8 dp_level)1275 void qed_init_dp(struct qed_dev *cdev, u32 dp_module, u8 dp_level)
1276 {
1277 	u32 i;
1278 
1279 	cdev->dp_level = dp_level;
1280 	cdev->dp_module = dp_module;
1281 	for (i = 0; i < MAX_HWFNS_PER_DEVICE; i++) {
1282 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
1283 
1284 		p_hwfn->dp_level = dp_level;
1285 		p_hwfn->dp_module = dp_module;
1286 	}
1287 }
1288 
qed_init_struct(struct qed_dev * cdev)1289 void qed_init_struct(struct qed_dev *cdev)
1290 {
1291 	u8 i;
1292 
1293 	for (i = 0; i < MAX_HWFNS_PER_DEVICE; i++) {
1294 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
1295 
1296 		p_hwfn->cdev = cdev;
1297 		p_hwfn->my_id = i;
1298 		p_hwfn->b_active = false;
1299 
1300 		mutex_init(&p_hwfn->dmae_info.mutex);
1301 	}
1302 
1303 	/* hwfn 0 is always active */
1304 	cdev->hwfns[0].b_active = true;
1305 
1306 	/* set the default cache alignment to 128 */
1307 	cdev->cache_shift = 7;
1308 }
1309 
qed_qm_info_free(struct qed_hwfn * p_hwfn)1310 static void qed_qm_info_free(struct qed_hwfn *p_hwfn)
1311 {
1312 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1313 
1314 	kfree(qm_info->qm_pq_params);
1315 	qm_info->qm_pq_params = NULL;
1316 	kfree(qm_info->qm_vport_params);
1317 	qm_info->qm_vport_params = NULL;
1318 	kfree(qm_info->qm_port_params);
1319 	qm_info->qm_port_params = NULL;
1320 	kfree(qm_info->wfq_data);
1321 	qm_info->wfq_data = NULL;
1322 }
1323 
qed_dbg_user_data_free(struct qed_hwfn * p_hwfn)1324 static void qed_dbg_user_data_free(struct qed_hwfn *p_hwfn)
1325 {
1326 	kfree(p_hwfn->dbg_user_info);
1327 	p_hwfn->dbg_user_info = NULL;
1328 }
1329 
qed_resc_free(struct qed_dev * cdev)1330 void qed_resc_free(struct qed_dev *cdev)
1331 {
1332 	struct qed_rdma_info *rdma_info;
1333 	struct qed_hwfn *p_hwfn;
1334 	int i;
1335 
1336 	if (IS_VF(cdev)) {
1337 		for_each_hwfn(cdev, i)
1338 			qed_l2_free(&cdev->hwfns[i]);
1339 		return;
1340 	}
1341 
1342 	kfree(cdev->fw_data);
1343 	cdev->fw_data = NULL;
1344 
1345 	kfree(cdev->reset_stats);
1346 	cdev->reset_stats = NULL;
1347 
1348 	qed_llh_free(cdev);
1349 
1350 	for_each_hwfn(cdev, i) {
1351 		p_hwfn = cdev->hwfns + i;
1352 		rdma_info = p_hwfn->p_rdma_info;
1353 
1354 		qed_cxt_mngr_free(p_hwfn);
1355 		qed_qm_info_free(p_hwfn);
1356 		qed_spq_free(p_hwfn);
1357 		qed_eq_free(p_hwfn);
1358 		qed_consq_free(p_hwfn);
1359 		qed_int_free(p_hwfn);
1360 #ifdef CONFIG_QED_LL2
1361 		qed_ll2_free(p_hwfn);
1362 #endif
1363 		if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
1364 			qed_fcoe_free(p_hwfn);
1365 
1366 		if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
1367 			qed_iscsi_free(p_hwfn);
1368 			qed_ooo_free(p_hwfn);
1369 		}
1370 
1371 		if (p_hwfn->hw_info.personality == QED_PCI_NVMETCP) {
1372 			qed_nvmetcp_free(p_hwfn);
1373 			qed_ooo_free(p_hwfn);
1374 		}
1375 
1376 		if (QED_IS_RDMA_PERSONALITY(p_hwfn) && rdma_info) {
1377 			qed_spq_unregister_async_cb(p_hwfn, rdma_info->proto);
1378 			qed_rdma_info_free(p_hwfn);
1379 		}
1380 
1381 		qed_spq_unregister_async_cb(p_hwfn, PROTOCOLID_COMMON);
1382 		qed_iov_free(p_hwfn);
1383 		qed_l2_free(p_hwfn);
1384 		qed_dmae_info_free(p_hwfn);
1385 		qed_dcbx_info_free(p_hwfn);
1386 		qed_dbg_user_data_free(p_hwfn);
1387 		qed_fw_overlay_mem_free(p_hwfn, &p_hwfn->fw_overlay_mem);
1388 
1389 		/* Destroy doorbell recovery mechanism */
1390 		qed_db_recovery_teardown(p_hwfn);
1391 	}
1392 }
1393 
1394 /******************** QM initialization *******************/
1395 #define ACTIVE_TCS_BMAP 0x9f
1396 #define ACTIVE_TCS_BMAP_4PORT_K2 0xf
1397 
1398 /* determines the physical queue flags for a given PF. */
qed_get_pq_flags(struct qed_hwfn * p_hwfn)1399 static u32 qed_get_pq_flags(struct qed_hwfn *p_hwfn)
1400 {
1401 	u32 flags;
1402 
1403 	/* common flags */
1404 	flags = PQ_FLAGS_LB;
1405 
1406 	/* feature flags */
1407 	if (IS_QED_SRIOV(p_hwfn->cdev))
1408 		flags |= PQ_FLAGS_VFS;
1409 
1410 	/* protocol flags */
1411 	switch (p_hwfn->hw_info.personality) {
1412 	case QED_PCI_ETH:
1413 		flags |= PQ_FLAGS_MCOS;
1414 		break;
1415 	case QED_PCI_FCOE:
1416 		flags |= PQ_FLAGS_OFLD;
1417 		break;
1418 	case QED_PCI_ISCSI:
1419 	case QED_PCI_NVMETCP:
1420 		flags |= PQ_FLAGS_ACK | PQ_FLAGS_OOO | PQ_FLAGS_OFLD;
1421 		break;
1422 	case QED_PCI_ETH_ROCE:
1423 		flags |= PQ_FLAGS_MCOS | PQ_FLAGS_OFLD | PQ_FLAGS_LLT;
1424 		if (IS_QED_MULTI_TC_ROCE(p_hwfn))
1425 			flags |= PQ_FLAGS_MTC;
1426 		break;
1427 	case QED_PCI_ETH_IWARP:
1428 		flags |= PQ_FLAGS_MCOS | PQ_FLAGS_ACK | PQ_FLAGS_OOO |
1429 		    PQ_FLAGS_OFLD;
1430 		break;
1431 	default:
1432 		DP_ERR(p_hwfn,
1433 		       "unknown personality %d\n", p_hwfn->hw_info.personality);
1434 		return 0;
1435 	}
1436 
1437 	return flags;
1438 }
1439 
1440 /* Getters for resource amounts necessary for qm initialization */
qed_init_qm_get_num_tcs(struct qed_hwfn * p_hwfn)1441 static u8 qed_init_qm_get_num_tcs(struct qed_hwfn *p_hwfn)
1442 {
1443 	return p_hwfn->hw_info.num_hw_tc;
1444 }
1445 
qed_init_qm_get_num_vfs(struct qed_hwfn * p_hwfn)1446 static u16 qed_init_qm_get_num_vfs(struct qed_hwfn *p_hwfn)
1447 {
1448 	return IS_QED_SRIOV(p_hwfn->cdev) ?
1449 	       p_hwfn->cdev->p_iov_info->total_vfs : 0;
1450 }
1451 
qed_init_qm_get_num_mtc_tcs(struct qed_hwfn * p_hwfn)1452 static u8 qed_init_qm_get_num_mtc_tcs(struct qed_hwfn *p_hwfn)
1453 {
1454 	u32 pq_flags = qed_get_pq_flags(p_hwfn);
1455 
1456 	if (!(PQ_FLAGS_MTC & pq_flags))
1457 		return 1;
1458 
1459 	return qed_init_qm_get_num_tcs(p_hwfn);
1460 }
1461 
1462 #define NUM_DEFAULT_RLS 1
1463 
qed_init_qm_get_num_pf_rls(struct qed_hwfn * p_hwfn)1464 static u16 qed_init_qm_get_num_pf_rls(struct qed_hwfn *p_hwfn)
1465 {
1466 	u16 num_pf_rls, num_vfs = qed_init_qm_get_num_vfs(p_hwfn);
1467 
1468 	/* num RLs can't exceed resource amount of rls or vports */
1469 	num_pf_rls = (u16)min_t(u32, RESC_NUM(p_hwfn, QED_RL),
1470 				RESC_NUM(p_hwfn, QED_VPORT));
1471 
1472 	/* Make sure after we reserve there's something left */
1473 	if (num_pf_rls < num_vfs + NUM_DEFAULT_RLS)
1474 		return 0;
1475 
1476 	/* subtract rls necessary for VFs and one default one for the PF */
1477 	num_pf_rls -= num_vfs + NUM_DEFAULT_RLS;
1478 
1479 	return num_pf_rls;
1480 }
1481 
qed_init_qm_get_num_vports(struct qed_hwfn * p_hwfn)1482 static u16 qed_init_qm_get_num_vports(struct qed_hwfn *p_hwfn)
1483 {
1484 	u32 pq_flags = qed_get_pq_flags(p_hwfn);
1485 
1486 	/* all pqs share the same vport, except for vfs and pf_rl pqs */
1487 	return (!!(PQ_FLAGS_RLS & pq_flags)) *
1488 	       qed_init_qm_get_num_pf_rls(p_hwfn) +
1489 	       (!!(PQ_FLAGS_VFS & pq_flags)) *
1490 	       qed_init_qm_get_num_vfs(p_hwfn) + 1;
1491 }
1492 
1493 /* calc amount of PQs according to the requested flags */
qed_init_qm_get_num_pqs(struct qed_hwfn * p_hwfn)1494 static u16 qed_init_qm_get_num_pqs(struct qed_hwfn *p_hwfn)
1495 {
1496 	u32 pq_flags = qed_get_pq_flags(p_hwfn);
1497 
1498 	return (!!(PQ_FLAGS_RLS & pq_flags)) *
1499 	       qed_init_qm_get_num_pf_rls(p_hwfn) +
1500 	       (!!(PQ_FLAGS_MCOS & pq_flags)) *
1501 	       qed_init_qm_get_num_tcs(p_hwfn) +
1502 	       (!!(PQ_FLAGS_LB & pq_flags)) + (!!(PQ_FLAGS_OOO & pq_flags)) +
1503 	       (!!(PQ_FLAGS_ACK & pq_flags)) +
1504 	       (!!(PQ_FLAGS_OFLD & pq_flags)) *
1505 	       qed_init_qm_get_num_mtc_tcs(p_hwfn) +
1506 	       (!!(PQ_FLAGS_LLT & pq_flags)) *
1507 	       qed_init_qm_get_num_mtc_tcs(p_hwfn) +
1508 	       (!!(PQ_FLAGS_VFS & pq_flags)) * qed_init_qm_get_num_vfs(p_hwfn);
1509 }
1510 
1511 /* initialize the top level QM params */
qed_init_qm_params(struct qed_hwfn * p_hwfn)1512 static void qed_init_qm_params(struct qed_hwfn *p_hwfn)
1513 {
1514 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1515 	bool four_port;
1516 
1517 	/* pq and vport bases for this PF */
1518 	qm_info->start_pq = (u16)RESC_START(p_hwfn, QED_PQ);
1519 	qm_info->start_vport = (u8)RESC_START(p_hwfn, QED_VPORT);
1520 
1521 	/* rate limiting and weighted fair queueing are always enabled */
1522 	qm_info->vport_rl_en = true;
1523 	qm_info->vport_wfq_en = true;
1524 
1525 	/* TC config is different for AH 4 port */
1526 	four_port = p_hwfn->cdev->num_ports_in_engine == MAX_NUM_PORTS_K2;
1527 
1528 	/* in AH 4 port we have fewer TCs per port */
1529 	qm_info->max_phys_tcs_per_port = four_port ? NUM_PHYS_TCS_4PORT_K2 :
1530 						     NUM_OF_PHYS_TCS;
1531 
1532 	/* unless MFW indicated otherwise, ooo_tc == 3 for
1533 	 * AH 4-port and 4 otherwise.
1534 	 */
1535 	if (!qm_info->ooo_tc)
1536 		qm_info->ooo_tc = four_port ? DCBX_TCP_OOO_K2_4PORT_TC :
1537 					      DCBX_TCP_OOO_TC;
1538 }
1539 
1540 /* initialize qm vport params */
qed_init_qm_vport_params(struct qed_hwfn * p_hwfn)1541 static void qed_init_qm_vport_params(struct qed_hwfn *p_hwfn)
1542 {
1543 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1544 	u8 i;
1545 
1546 	/* all vports participate in weighted fair queueing */
1547 	for (i = 0; i < qed_init_qm_get_num_vports(p_hwfn); i++)
1548 		qm_info->qm_vport_params[i].wfq = 1;
1549 }
1550 
1551 /* initialize qm port params */
qed_init_qm_port_params(struct qed_hwfn * p_hwfn)1552 static void qed_init_qm_port_params(struct qed_hwfn *p_hwfn)
1553 {
1554 	/* Initialize qm port parameters */
1555 	u8 i, active_phys_tcs, num_ports = p_hwfn->cdev->num_ports_in_engine;
1556 	struct qed_dev *cdev = p_hwfn->cdev;
1557 
1558 	/* indicate how ooo and high pri traffic is dealt with */
1559 	active_phys_tcs = num_ports == MAX_NUM_PORTS_K2 ?
1560 			  ACTIVE_TCS_BMAP_4PORT_K2 :
1561 			  ACTIVE_TCS_BMAP;
1562 
1563 	for (i = 0; i < num_ports; i++) {
1564 		struct init_qm_port_params *p_qm_port =
1565 		    &p_hwfn->qm_info.qm_port_params[i];
1566 		u16 pbf_max_cmd_lines;
1567 
1568 		p_qm_port->active = 1;
1569 		p_qm_port->active_phys_tcs = active_phys_tcs;
1570 		pbf_max_cmd_lines = (u16)NUM_OF_PBF_CMD_LINES(cdev);
1571 		p_qm_port->num_pbf_cmd_lines = pbf_max_cmd_lines / num_ports;
1572 		p_qm_port->num_btb_blocks = NUM_OF_BTB_BLOCKS(cdev) / num_ports;
1573 	}
1574 }
1575 
1576 /* Reset the params which must be reset for qm init. QM init may be called as
1577  * a result of flows other than driver load (e.g. dcbx renegotiation). Other
1578  * params may be affected by the init but would simply recalculate to the same
1579  * values. The allocations made for QM init, ports, vports, pqs and vfqs are not
1580  * affected as these amounts stay the same.
1581  */
qed_init_qm_reset_params(struct qed_hwfn * p_hwfn)1582 static void qed_init_qm_reset_params(struct qed_hwfn *p_hwfn)
1583 {
1584 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1585 
1586 	qm_info->num_pqs = 0;
1587 	qm_info->num_vports = 0;
1588 	qm_info->num_pf_rls = 0;
1589 	qm_info->num_vf_pqs = 0;
1590 	qm_info->first_vf_pq = 0;
1591 	qm_info->first_mcos_pq = 0;
1592 	qm_info->first_rl_pq = 0;
1593 }
1594 
qed_init_qm_advance_vport(struct qed_hwfn * p_hwfn)1595 static void qed_init_qm_advance_vport(struct qed_hwfn *p_hwfn)
1596 {
1597 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1598 
1599 	qm_info->num_vports++;
1600 
1601 	if (qm_info->num_vports > qed_init_qm_get_num_vports(p_hwfn))
1602 		DP_ERR(p_hwfn,
1603 		       "vport overflow! qm_info->num_vports %d, qm_init_get_num_vports() %d\n",
1604 		       qm_info->num_vports, qed_init_qm_get_num_vports(p_hwfn));
1605 }
1606 
1607 /* initialize a single pq and manage qm_info resources accounting.
1608  * The pq_init_flags param determines whether the PQ is rate limited
1609  * (for VF or PF) and whether a new vport is allocated to the pq or not
1610  * (i.e. vport will be shared).
1611  */
1612 
1613 /* flags for pq init */
1614 #define PQ_INIT_SHARE_VPORT     BIT(0)
1615 #define PQ_INIT_PF_RL           BIT(1)
1616 #define PQ_INIT_VF_RL           BIT(2)
1617 
1618 /* defines for pq init */
1619 #define PQ_INIT_DEFAULT_WRR_GROUP       1
1620 #define PQ_INIT_DEFAULT_TC              0
1621 
qed_hw_info_set_offload_tc(struct qed_hw_info * p_info,u8 tc)1622 void qed_hw_info_set_offload_tc(struct qed_hw_info *p_info, u8 tc)
1623 {
1624 	p_info->offload_tc = tc;
1625 	p_info->offload_tc_set = true;
1626 }
1627 
qed_is_offload_tc_set(struct qed_hwfn * p_hwfn)1628 static bool qed_is_offload_tc_set(struct qed_hwfn *p_hwfn)
1629 {
1630 	return p_hwfn->hw_info.offload_tc_set;
1631 }
1632 
qed_get_offload_tc(struct qed_hwfn * p_hwfn)1633 static u32 qed_get_offload_tc(struct qed_hwfn *p_hwfn)
1634 {
1635 	if (qed_is_offload_tc_set(p_hwfn))
1636 		return p_hwfn->hw_info.offload_tc;
1637 
1638 	return PQ_INIT_DEFAULT_TC;
1639 }
1640 
qed_init_qm_pq(struct qed_hwfn * p_hwfn,struct qed_qm_info * qm_info,u8 tc,u32 pq_init_flags)1641 static void qed_init_qm_pq(struct qed_hwfn *p_hwfn,
1642 			   struct qed_qm_info *qm_info,
1643 			   u8 tc, u32 pq_init_flags)
1644 {
1645 	u16 pq_idx = qm_info->num_pqs, max_pq = qed_init_qm_get_num_pqs(p_hwfn);
1646 
1647 	if (pq_idx > max_pq)
1648 		DP_ERR(p_hwfn,
1649 		       "pq overflow! pq %d, max pq %d\n", pq_idx, max_pq);
1650 
1651 	/* init pq params */
1652 	qm_info->qm_pq_params[pq_idx].port_id = p_hwfn->port_id;
1653 	qm_info->qm_pq_params[pq_idx].vport_id = qm_info->start_vport +
1654 	    qm_info->num_vports;
1655 	qm_info->qm_pq_params[pq_idx].tc_id = tc;
1656 	qm_info->qm_pq_params[pq_idx].wrr_group = PQ_INIT_DEFAULT_WRR_GROUP;
1657 	qm_info->qm_pq_params[pq_idx].rl_valid =
1658 	    (pq_init_flags & PQ_INIT_PF_RL || pq_init_flags & PQ_INIT_VF_RL);
1659 
1660 	/* qm params accounting */
1661 	qm_info->num_pqs++;
1662 	if (!(pq_init_flags & PQ_INIT_SHARE_VPORT))
1663 		qm_info->num_vports++;
1664 
1665 	if (pq_init_flags & PQ_INIT_PF_RL)
1666 		qm_info->num_pf_rls++;
1667 
1668 	if (qm_info->num_vports > qed_init_qm_get_num_vports(p_hwfn))
1669 		DP_ERR(p_hwfn,
1670 		       "vport overflow! qm_info->num_vports %d, qm_init_get_num_vports() %d\n",
1671 		       qm_info->num_vports, qed_init_qm_get_num_vports(p_hwfn));
1672 
1673 	if (qm_info->num_pf_rls > qed_init_qm_get_num_pf_rls(p_hwfn))
1674 		DP_ERR(p_hwfn,
1675 		       "rl overflow! qm_info->num_pf_rls %d, qm_init_get_num_pf_rls() %d\n",
1676 		       qm_info->num_pf_rls, qed_init_qm_get_num_pf_rls(p_hwfn));
1677 }
1678 
1679 /* get pq index according to PQ_FLAGS */
qed_init_qm_get_idx_from_flags(struct qed_hwfn * p_hwfn,unsigned long pq_flags)1680 static u16 *qed_init_qm_get_idx_from_flags(struct qed_hwfn *p_hwfn,
1681 					   unsigned long pq_flags)
1682 {
1683 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1684 
1685 	/* Can't have multiple flags set here */
1686 	if (bitmap_weight(&pq_flags,
1687 			  sizeof(pq_flags) * BITS_PER_BYTE) > 1) {
1688 		DP_ERR(p_hwfn, "requested multiple pq flags 0x%lx\n", pq_flags);
1689 		goto err;
1690 	}
1691 
1692 	if (!(qed_get_pq_flags(p_hwfn) & pq_flags)) {
1693 		DP_ERR(p_hwfn, "pq flag 0x%lx is not set\n", pq_flags);
1694 		goto err;
1695 	}
1696 
1697 	switch (pq_flags) {
1698 	case PQ_FLAGS_RLS:
1699 		return &qm_info->first_rl_pq;
1700 	case PQ_FLAGS_MCOS:
1701 		return &qm_info->first_mcos_pq;
1702 	case PQ_FLAGS_LB:
1703 		return &qm_info->pure_lb_pq;
1704 	case PQ_FLAGS_OOO:
1705 		return &qm_info->ooo_pq;
1706 	case PQ_FLAGS_ACK:
1707 		return &qm_info->pure_ack_pq;
1708 	case PQ_FLAGS_OFLD:
1709 		return &qm_info->first_ofld_pq;
1710 	case PQ_FLAGS_LLT:
1711 		return &qm_info->first_llt_pq;
1712 	case PQ_FLAGS_VFS:
1713 		return &qm_info->first_vf_pq;
1714 	default:
1715 		goto err;
1716 	}
1717 
1718 err:
1719 	return &qm_info->start_pq;
1720 }
1721 
1722 /* save pq index in qm info */
qed_init_qm_set_idx(struct qed_hwfn * p_hwfn,u32 pq_flags,u16 pq_val)1723 static void qed_init_qm_set_idx(struct qed_hwfn *p_hwfn,
1724 				u32 pq_flags, u16 pq_val)
1725 {
1726 	u16 *base_pq_idx = qed_init_qm_get_idx_from_flags(p_hwfn, pq_flags);
1727 
1728 	*base_pq_idx = p_hwfn->qm_info.start_pq + pq_val;
1729 }
1730 
1731 /* 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)1732 u16 qed_get_cm_pq_idx(struct qed_hwfn *p_hwfn, u32 pq_flags)
1733 {
1734 	u16 *base_pq_idx = qed_init_qm_get_idx_from_flags(p_hwfn, pq_flags);
1735 
1736 	return *base_pq_idx + CM_TX_PQ_BASE;
1737 }
1738 
qed_get_cm_pq_idx_mcos(struct qed_hwfn * p_hwfn,u8 tc)1739 u16 qed_get_cm_pq_idx_mcos(struct qed_hwfn *p_hwfn, u8 tc)
1740 {
1741 	u8 max_tc = qed_init_qm_get_num_tcs(p_hwfn);
1742 
1743 	if (max_tc == 0) {
1744 		DP_ERR(p_hwfn, "pq with flag 0x%lx do not exist\n",
1745 		       PQ_FLAGS_MCOS);
1746 		return p_hwfn->qm_info.start_pq;
1747 	}
1748 
1749 	if (tc > max_tc)
1750 		DP_ERR(p_hwfn, "tc %d must be smaller than %d\n", tc, max_tc);
1751 
1752 	return qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_MCOS) + (tc % max_tc);
1753 }
1754 
qed_get_cm_pq_idx_vf(struct qed_hwfn * p_hwfn,u16 vf)1755 u16 qed_get_cm_pq_idx_vf(struct qed_hwfn *p_hwfn, u16 vf)
1756 {
1757 	u16 max_vf = qed_init_qm_get_num_vfs(p_hwfn);
1758 
1759 	if (max_vf == 0) {
1760 		DP_ERR(p_hwfn, "pq with flag 0x%lx do not exist\n",
1761 		       PQ_FLAGS_VFS);
1762 		return p_hwfn->qm_info.start_pq;
1763 	}
1764 
1765 	if (vf > max_vf)
1766 		DP_ERR(p_hwfn, "vf %d must be smaller than %d\n", vf, max_vf);
1767 
1768 	return qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_VFS) + (vf % max_vf);
1769 }
1770 
qed_get_cm_pq_idx_ofld_mtc(struct qed_hwfn * p_hwfn,u8 tc)1771 u16 qed_get_cm_pq_idx_ofld_mtc(struct qed_hwfn *p_hwfn, u8 tc)
1772 {
1773 	u16 first_ofld_pq, pq_offset;
1774 
1775 	first_ofld_pq = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD);
1776 	pq_offset = (tc < qed_init_qm_get_num_mtc_tcs(p_hwfn)) ?
1777 		    tc : PQ_INIT_DEFAULT_TC;
1778 
1779 	return first_ofld_pq + pq_offset;
1780 }
1781 
qed_get_cm_pq_idx_llt_mtc(struct qed_hwfn * p_hwfn,u8 tc)1782 u16 qed_get_cm_pq_idx_llt_mtc(struct qed_hwfn *p_hwfn, u8 tc)
1783 {
1784 	u16 first_llt_pq, pq_offset;
1785 
1786 	first_llt_pq = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_LLT);
1787 	pq_offset = (tc < qed_init_qm_get_num_mtc_tcs(p_hwfn)) ?
1788 		    tc : PQ_INIT_DEFAULT_TC;
1789 
1790 	return first_llt_pq + pq_offset;
1791 }
1792 
1793 /* Functions for creating specific types of pqs */
qed_init_qm_lb_pq(struct qed_hwfn * p_hwfn)1794 static void qed_init_qm_lb_pq(struct qed_hwfn *p_hwfn)
1795 {
1796 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1797 
1798 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_LB))
1799 		return;
1800 
1801 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_LB, qm_info->num_pqs);
1802 	qed_init_qm_pq(p_hwfn, qm_info, PURE_LB_TC, PQ_INIT_SHARE_VPORT);
1803 }
1804 
qed_init_qm_ooo_pq(struct qed_hwfn * p_hwfn)1805 static void qed_init_qm_ooo_pq(struct qed_hwfn *p_hwfn)
1806 {
1807 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1808 
1809 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_OOO))
1810 		return;
1811 
1812 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_OOO, qm_info->num_pqs);
1813 	qed_init_qm_pq(p_hwfn, qm_info, qm_info->ooo_tc, PQ_INIT_SHARE_VPORT);
1814 }
1815 
qed_init_qm_pure_ack_pq(struct qed_hwfn * p_hwfn)1816 static void qed_init_qm_pure_ack_pq(struct qed_hwfn *p_hwfn)
1817 {
1818 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1819 
1820 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_ACK))
1821 		return;
1822 
1823 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_ACK, qm_info->num_pqs);
1824 	qed_init_qm_pq(p_hwfn, qm_info, qed_get_offload_tc(p_hwfn),
1825 		       PQ_INIT_SHARE_VPORT);
1826 }
1827 
qed_init_qm_mtc_pqs(struct qed_hwfn * p_hwfn)1828 static void qed_init_qm_mtc_pqs(struct qed_hwfn *p_hwfn)
1829 {
1830 	u8 num_tcs = qed_init_qm_get_num_mtc_tcs(p_hwfn);
1831 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1832 	u8 tc;
1833 
1834 	/* override pq's TC if offload TC is set */
1835 	for (tc = 0; tc < num_tcs; tc++)
1836 		qed_init_qm_pq(p_hwfn, qm_info,
1837 			       qed_is_offload_tc_set(p_hwfn) ?
1838 			       p_hwfn->hw_info.offload_tc : tc,
1839 			       PQ_INIT_SHARE_VPORT);
1840 }
1841 
qed_init_qm_offload_pq(struct qed_hwfn * p_hwfn)1842 static void qed_init_qm_offload_pq(struct qed_hwfn *p_hwfn)
1843 {
1844 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1845 
1846 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_OFLD))
1847 		return;
1848 
1849 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_OFLD, qm_info->num_pqs);
1850 	qed_init_qm_mtc_pqs(p_hwfn);
1851 }
1852 
qed_init_qm_low_latency_pq(struct qed_hwfn * p_hwfn)1853 static void qed_init_qm_low_latency_pq(struct qed_hwfn *p_hwfn)
1854 {
1855 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1856 
1857 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_LLT))
1858 		return;
1859 
1860 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_LLT, qm_info->num_pqs);
1861 	qed_init_qm_mtc_pqs(p_hwfn);
1862 }
1863 
qed_init_qm_mcos_pqs(struct qed_hwfn * p_hwfn)1864 static void qed_init_qm_mcos_pqs(struct qed_hwfn *p_hwfn)
1865 {
1866 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1867 	u8 tc_idx;
1868 
1869 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_MCOS))
1870 		return;
1871 
1872 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_MCOS, qm_info->num_pqs);
1873 	for (tc_idx = 0; tc_idx < qed_init_qm_get_num_tcs(p_hwfn); tc_idx++)
1874 		qed_init_qm_pq(p_hwfn, qm_info, tc_idx, PQ_INIT_SHARE_VPORT);
1875 }
1876 
qed_init_qm_vf_pqs(struct qed_hwfn * p_hwfn)1877 static void qed_init_qm_vf_pqs(struct qed_hwfn *p_hwfn)
1878 {
1879 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1880 	u16 vf_idx, num_vfs = qed_init_qm_get_num_vfs(p_hwfn);
1881 
1882 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_VFS))
1883 		return;
1884 
1885 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_VFS, qm_info->num_pqs);
1886 	qm_info->num_vf_pqs = num_vfs;
1887 	for (vf_idx = 0; vf_idx < num_vfs; vf_idx++)
1888 		qed_init_qm_pq(p_hwfn,
1889 			       qm_info, PQ_INIT_DEFAULT_TC, PQ_INIT_VF_RL);
1890 }
1891 
qed_init_qm_rl_pqs(struct qed_hwfn * p_hwfn)1892 static void qed_init_qm_rl_pqs(struct qed_hwfn *p_hwfn)
1893 {
1894 	u16 pf_rls_idx, num_pf_rls = qed_init_qm_get_num_pf_rls(p_hwfn);
1895 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1896 
1897 	if (!(qed_get_pq_flags(p_hwfn) & PQ_FLAGS_RLS))
1898 		return;
1899 
1900 	qed_init_qm_set_idx(p_hwfn, PQ_FLAGS_RLS, qm_info->num_pqs);
1901 	for (pf_rls_idx = 0; pf_rls_idx < num_pf_rls; pf_rls_idx++)
1902 		qed_init_qm_pq(p_hwfn, qm_info, qed_get_offload_tc(p_hwfn),
1903 			       PQ_INIT_PF_RL);
1904 }
1905 
qed_init_qm_pq_params(struct qed_hwfn * p_hwfn)1906 static void qed_init_qm_pq_params(struct qed_hwfn *p_hwfn)
1907 {
1908 	/* rate limited pqs, must come first (FW assumption) */
1909 	qed_init_qm_rl_pqs(p_hwfn);
1910 
1911 	/* pqs for multi cos */
1912 	qed_init_qm_mcos_pqs(p_hwfn);
1913 
1914 	/* pure loopback pq */
1915 	qed_init_qm_lb_pq(p_hwfn);
1916 
1917 	/* out of order pq */
1918 	qed_init_qm_ooo_pq(p_hwfn);
1919 
1920 	/* pure ack pq */
1921 	qed_init_qm_pure_ack_pq(p_hwfn);
1922 
1923 	/* pq for offloaded protocol */
1924 	qed_init_qm_offload_pq(p_hwfn);
1925 
1926 	/* low latency pq */
1927 	qed_init_qm_low_latency_pq(p_hwfn);
1928 
1929 	/* done sharing vports */
1930 	qed_init_qm_advance_vport(p_hwfn);
1931 
1932 	/* pqs for vfs */
1933 	qed_init_qm_vf_pqs(p_hwfn);
1934 }
1935 
1936 /* compare values of getters against resources amounts */
qed_init_qm_sanity(struct qed_hwfn * p_hwfn)1937 static int qed_init_qm_sanity(struct qed_hwfn *p_hwfn)
1938 {
1939 	if (qed_init_qm_get_num_vports(p_hwfn) > RESC_NUM(p_hwfn, QED_VPORT)) {
1940 		DP_ERR(p_hwfn, "requested amount of vports exceeds resource\n");
1941 		return -EINVAL;
1942 	}
1943 
1944 	if (qed_init_qm_get_num_pqs(p_hwfn) <= RESC_NUM(p_hwfn, QED_PQ))
1945 		return 0;
1946 
1947 	if (QED_IS_ROCE_PERSONALITY(p_hwfn)) {
1948 		p_hwfn->hw_info.multi_tc_roce_en = false;
1949 		DP_NOTICE(p_hwfn,
1950 			  "multi-tc roce was disabled to reduce requested amount of pqs\n");
1951 		if (qed_init_qm_get_num_pqs(p_hwfn) <= RESC_NUM(p_hwfn, QED_PQ))
1952 			return 0;
1953 	}
1954 
1955 	DP_ERR(p_hwfn, "requested amount of pqs exceeds resource\n");
1956 	return -EINVAL;
1957 }
1958 
qed_dp_init_qm_params(struct qed_hwfn * p_hwfn)1959 static void qed_dp_init_qm_params(struct qed_hwfn *p_hwfn)
1960 {
1961 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
1962 	struct init_qm_vport_params *vport;
1963 	struct init_qm_port_params *port;
1964 	struct init_qm_pq_params *pq;
1965 	int i, tc;
1966 
1967 	/* top level params */
1968 	DP_VERBOSE(p_hwfn,
1969 		   NETIF_MSG_HW,
1970 		   "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",
1971 		   qm_info->start_pq,
1972 		   qm_info->start_vport,
1973 		   qm_info->pure_lb_pq,
1974 		   qm_info->first_ofld_pq,
1975 		   qm_info->first_llt_pq,
1976 		   qm_info->pure_ack_pq);
1977 	DP_VERBOSE(p_hwfn,
1978 		   NETIF_MSG_HW,
1979 		   "ooo_pq %d, first_vf_pq %d, num_pqs %d, num_vf_pqs %d, num_vports %d, max_phys_tcs_per_port %d\n",
1980 		   qm_info->ooo_pq,
1981 		   qm_info->first_vf_pq,
1982 		   qm_info->num_pqs,
1983 		   qm_info->num_vf_pqs,
1984 		   qm_info->num_vports, qm_info->max_phys_tcs_per_port);
1985 	DP_VERBOSE(p_hwfn,
1986 		   NETIF_MSG_HW,
1987 		   "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",
1988 		   qm_info->pf_rl_en,
1989 		   qm_info->pf_wfq_en,
1990 		   qm_info->vport_rl_en,
1991 		   qm_info->vport_wfq_en,
1992 		   qm_info->pf_wfq,
1993 		   qm_info->pf_rl,
1994 		   qm_info->num_pf_rls, qed_get_pq_flags(p_hwfn));
1995 
1996 	/* port table */
1997 	for (i = 0; i < p_hwfn->cdev->num_ports_in_engine; i++) {
1998 		port = &(qm_info->qm_port_params[i]);
1999 		DP_VERBOSE(p_hwfn,
2000 			   NETIF_MSG_HW,
2001 			   "port idx %d, active %d, active_phys_tcs %d, num_pbf_cmd_lines %d, num_btb_blocks %d, reserved %d\n",
2002 			   i,
2003 			   port->active,
2004 			   port->active_phys_tcs,
2005 			   port->num_pbf_cmd_lines,
2006 			   port->num_btb_blocks, port->reserved);
2007 	}
2008 
2009 	/* vport table */
2010 	for (i = 0; i < qm_info->num_vports; i++) {
2011 		vport = &(qm_info->qm_vport_params[i]);
2012 		DP_VERBOSE(p_hwfn,
2013 			   NETIF_MSG_HW,
2014 			   "vport idx %d, wfq %d, first_tx_pq_id [ ",
2015 			   qm_info->start_vport + i, vport->wfq);
2016 		for (tc = 0; tc < NUM_OF_TCS; tc++)
2017 			DP_VERBOSE(p_hwfn,
2018 				   NETIF_MSG_HW,
2019 				   "%d ", vport->first_tx_pq_id[tc]);
2020 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW, "]\n");
2021 	}
2022 
2023 	/* pq table */
2024 	for (i = 0; i < qm_info->num_pqs; i++) {
2025 		pq = &(qm_info->qm_pq_params[i]);
2026 		DP_VERBOSE(p_hwfn,
2027 			   NETIF_MSG_HW,
2028 			   "pq idx %d, port %d, vport_id %d, tc %d, wrr_grp %d, rl_valid %d rl_id %d\n",
2029 			   qm_info->start_pq + i,
2030 			   pq->port_id,
2031 			   pq->vport_id,
2032 			   pq->tc_id, pq->wrr_group, pq->rl_valid, pq->rl_id);
2033 	}
2034 }
2035 
qed_init_qm_info(struct qed_hwfn * p_hwfn)2036 static void qed_init_qm_info(struct qed_hwfn *p_hwfn)
2037 {
2038 	/* reset params required for init run */
2039 	qed_init_qm_reset_params(p_hwfn);
2040 
2041 	/* init QM top level params */
2042 	qed_init_qm_params(p_hwfn);
2043 
2044 	/* init QM port params */
2045 	qed_init_qm_port_params(p_hwfn);
2046 
2047 	/* init QM vport params */
2048 	qed_init_qm_vport_params(p_hwfn);
2049 
2050 	/* init QM physical queue params */
2051 	qed_init_qm_pq_params(p_hwfn);
2052 
2053 	/* display all that init */
2054 	qed_dp_init_qm_params(p_hwfn);
2055 }
2056 
2057 /* This function reconfigures the QM pf on the fly.
2058  * For this purpose we:
2059  * 1. reconfigure the QM database
2060  * 2. set new values to runtime array
2061  * 3. send an sdm_qm_cmd through the rbc interface to stop the QM
2062  * 4. activate init tool in QM_PF stage
2063  * 5. send an sdm_qm_cmd through rbc interface to release the QM
2064  */
qed_qm_reconf(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)2065 int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
2066 {
2067 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
2068 	bool b_rc;
2069 	int rc;
2070 
2071 	/* initialize qed's qm data structure */
2072 	qed_init_qm_info(p_hwfn);
2073 
2074 	/* stop PF's qm queues */
2075 	spin_lock_bh(&qm_lock);
2076 	b_rc = qed_send_qm_stop_cmd(p_hwfn, p_ptt, false, true,
2077 				    qm_info->start_pq, qm_info->num_pqs);
2078 	spin_unlock_bh(&qm_lock);
2079 	if (!b_rc)
2080 		return -EINVAL;
2081 
2082 	/* prepare QM portion of runtime array */
2083 	qed_qm_init_pf(p_hwfn, p_ptt, false);
2084 
2085 	/* activate init tool on runtime array */
2086 	rc = qed_init_run(p_hwfn, p_ptt, PHASE_QM_PF, p_hwfn->rel_pf_id,
2087 			  p_hwfn->hw_info.hw_mode);
2088 	if (rc)
2089 		return rc;
2090 
2091 	/* start PF's qm queues */
2092 	spin_lock_bh(&qm_lock);
2093 	b_rc = qed_send_qm_stop_cmd(p_hwfn, p_ptt, true, true,
2094 				    qm_info->start_pq, qm_info->num_pqs);
2095 	spin_unlock_bh(&qm_lock);
2096 	if (!b_rc)
2097 		return -EINVAL;
2098 
2099 	return 0;
2100 }
2101 
qed_alloc_qm_data(struct qed_hwfn * p_hwfn)2102 static int qed_alloc_qm_data(struct qed_hwfn *p_hwfn)
2103 {
2104 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
2105 	int rc;
2106 
2107 	rc = qed_init_qm_sanity(p_hwfn);
2108 	if (rc)
2109 		goto alloc_err;
2110 
2111 	qm_info->qm_pq_params = kcalloc(qed_init_qm_get_num_pqs(p_hwfn),
2112 					sizeof(*qm_info->qm_pq_params),
2113 					GFP_KERNEL);
2114 	if (!qm_info->qm_pq_params)
2115 		goto alloc_err;
2116 
2117 	qm_info->qm_vport_params = kcalloc(qed_init_qm_get_num_vports(p_hwfn),
2118 					   sizeof(*qm_info->qm_vport_params),
2119 					   GFP_KERNEL);
2120 	if (!qm_info->qm_vport_params)
2121 		goto alloc_err;
2122 
2123 	qm_info->qm_port_params = kcalloc(p_hwfn->cdev->num_ports_in_engine,
2124 					  sizeof(*qm_info->qm_port_params),
2125 					  GFP_KERNEL);
2126 	if (!qm_info->qm_port_params)
2127 		goto alloc_err;
2128 
2129 	qm_info->wfq_data = kcalloc(qed_init_qm_get_num_vports(p_hwfn),
2130 				    sizeof(*qm_info->wfq_data),
2131 				    GFP_KERNEL);
2132 	if (!qm_info->wfq_data)
2133 		goto alloc_err;
2134 
2135 	return 0;
2136 
2137 alloc_err:
2138 	DP_NOTICE(p_hwfn, "Failed to allocate memory for QM params\n");
2139 	qed_qm_info_free(p_hwfn);
2140 	return -ENOMEM;
2141 }
2142 
qed_resc_alloc(struct qed_dev * cdev)2143 int qed_resc_alloc(struct qed_dev *cdev)
2144 {
2145 	u32 rdma_tasks, excess_tasks;
2146 	u32 line_count;
2147 	int i, rc = 0;
2148 
2149 	if (IS_VF(cdev)) {
2150 		for_each_hwfn(cdev, i) {
2151 			rc = qed_l2_alloc(&cdev->hwfns[i]);
2152 			if (rc)
2153 				return rc;
2154 		}
2155 		return rc;
2156 	}
2157 
2158 	cdev->fw_data = kzalloc(sizeof(*cdev->fw_data), GFP_KERNEL);
2159 	if (!cdev->fw_data)
2160 		return -ENOMEM;
2161 
2162 	for_each_hwfn(cdev, i) {
2163 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
2164 		u32 n_eqes, num_cons;
2165 
2166 		/* Initialize the doorbell recovery mechanism */
2167 		rc = qed_db_recovery_setup(p_hwfn);
2168 		if (rc)
2169 			goto alloc_err;
2170 
2171 		/* First allocate the context manager structure */
2172 		rc = qed_cxt_mngr_alloc(p_hwfn);
2173 		if (rc)
2174 			goto alloc_err;
2175 
2176 		/* Set the HW cid/tid numbers (in the contest manager)
2177 		 * Must be done prior to any further computations.
2178 		 */
2179 		rc = qed_cxt_set_pf_params(p_hwfn, RDMA_MAX_TIDS);
2180 		if (rc)
2181 			goto alloc_err;
2182 
2183 		rc = qed_alloc_qm_data(p_hwfn);
2184 		if (rc)
2185 			goto alloc_err;
2186 
2187 		/* init qm info */
2188 		qed_init_qm_info(p_hwfn);
2189 
2190 		/* Compute the ILT client partition */
2191 		rc = qed_cxt_cfg_ilt_compute(p_hwfn, &line_count);
2192 		if (rc) {
2193 			DP_NOTICE(p_hwfn,
2194 				  "too many ILT lines; re-computing with less lines\n");
2195 			/* In case there are not enough ILT lines we reduce the
2196 			 * number of RDMA tasks and re-compute.
2197 			 */
2198 			excess_tasks =
2199 			    qed_cxt_cfg_ilt_compute_excess(p_hwfn, line_count);
2200 			if (!excess_tasks)
2201 				goto alloc_err;
2202 
2203 			rdma_tasks = RDMA_MAX_TIDS - excess_tasks;
2204 			rc = qed_cxt_set_pf_params(p_hwfn, rdma_tasks);
2205 			if (rc)
2206 				goto alloc_err;
2207 
2208 			rc = qed_cxt_cfg_ilt_compute(p_hwfn, &line_count);
2209 			if (rc) {
2210 				DP_ERR(p_hwfn,
2211 				       "failed ILT compute. Requested too many lines: %u\n",
2212 				       line_count);
2213 
2214 				goto alloc_err;
2215 			}
2216 		}
2217 
2218 		/* CID map / ILT shadow table / T2
2219 		 * The table sizes are determined by the computations above
2220 		 */
2221 		rc = qed_cxt_tables_alloc(p_hwfn);
2222 		if (rc)
2223 			goto alloc_err;
2224 
2225 		/* SPQ, must follow ILT because initializes SPQ context */
2226 		rc = qed_spq_alloc(p_hwfn);
2227 		if (rc)
2228 			goto alloc_err;
2229 
2230 		/* SP status block allocation */
2231 		p_hwfn->p_dpc_ptt = qed_get_reserved_ptt(p_hwfn,
2232 							 RESERVED_PTT_DPC);
2233 
2234 		rc = qed_int_alloc(p_hwfn, p_hwfn->p_main_ptt);
2235 		if (rc)
2236 			goto alloc_err;
2237 
2238 		rc = qed_iov_alloc(p_hwfn);
2239 		if (rc)
2240 			goto alloc_err;
2241 
2242 		/* EQ */
2243 		n_eqes = qed_chain_get_capacity(&p_hwfn->p_spq->chain);
2244 		if (QED_IS_RDMA_PERSONALITY(p_hwfn)) {
2245 			u32 n_srq = qed_cxt_get_total_srq_count(p_hwfn);
2246 			enum protocol_type rdma_proto;
2247 
2248 			if (QED_IS_ROCE_PERSONALITY(p_hwfn))
2249 				rdma_proto = PROTOCOLID_ROCE;
2250 			else
2251 				rdma_proto = PROTOCOLID_IWARP;
2252 
2253 			num_cons = qed_cxt_get_proto_cid_count(p_hwfn,
2254 							       rdma_proto,
2255 							       NULL) * 2;
2256 			/* EQ should be able to get events from all SRQ's
2257 			 * at the same time
2258 			 */
2259 			n_eqes += num_cons + 2 * MAX_NUM_VFS_BB + n_srq;
2260 		} else if (p_hwfn->hw_info.personality == QED_PCI_ISCSI ||
2261 			   p_hwfn->hw_info.personality == QED_PCI_NVMETCP) {
2262 			num_cons =
2263 			    qed_cxt_get_proto_cid_count(p_hwfn,
2264 							PROTOCOLID_TCP_ULP,
2265 							NULL);
2266 			n_eqes += 2 * num_cons;
2267 		}
2268 
2269 		if (n_eqes > 0xFFFF) {
2270 			DP_ERR(p_hwfn,
2271 			       "Cannot allocate 0x%x EQ elements. The maximum of a u16 chain is 0x%x\n",
2272 			       n_eqes, 0xFFFF);
2273 			goto alloc_no_mem;
2274 		}
2275 
2276 		rc = qed_eq_alloc(p_hwfn, (u16)n_eqes);
2277 		if (rc)
2278 			goto alloc_err;
2279 
2280 		rc = qed_consq_alloc(p_hwfn);
2281 		if (rc)
2282 			goto alloc_err;
2283 
2284 		rc = qed_l2_alloc(p_hwfn);
2285 		if (rc)
2286 			goto alloc_err;
2287 
2288 #ifdef CONFIG_QED_LL2
2289 		if (p_hwfn->using_ll2) {
2290 			rc = qed_ll2_alloc(p_hwfn);
2291 			if (rc)
2292 				goto alloc_err;
2293 		}
2294 #endif
2295 
2296 		if (p_hwfn->hw_info.personality == QED_PCI_FCOE) {
2297 			rc = qed_fcoe_alloc(p_hwfn);
2298 			if (rc)
2299 				goto alloc_err;
2300 		}
2301 
2302 		if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
2303 			rc = qed_iscsi_alloc(p_hwfn);
2304 			if (rc)
2305 				goto alloc_err;
2306 			rc = qed_ooo_alloc(p_hwfn);
2307 			if (rc)
2308 				goto alloc_err;
2309 		}
2310 
2311 		if (p_hwfn->hw_info.personality == QED_PCI_NVMETCP) {
2312 			rc = qed_nvmetcp_alloc(p_hwfn);
2313 			if (rc)
2314 				goto alloc_err;
2315 			rc = qed_ooo_alloc(p_hwfn);
2316 			if (rc)
2317 				goto alloc_err;
2318 		}
2319 
2320 		if (QED_IS_RDMA_PERSONALITY(p_hwfn)) {
2321 			rc = qed_rdma_info_alloc(p_hwfn);
2322 			if (rc)
2323 				goto alloc_err;
2324 		}
2325 
2326 		/* DMA info initialization */
2327 		rc = qed_dmae_info_alloc(p_hwfn);
2328 		if (rc)
2329 			goto alloc_err;
2330 
2331 		/* DCBX initialization */
2332 		rc = qed_dcbx_info_alloc(p_hwfn);
2333 		if (rc)
2334 			goto alloc_err;
2335 
2336 		rc = qed_dbg_alloc_user_data(p_hwfn, &p_hwfn->dbg_user_info);
2337 		if (rc)
2338 			goto alloc_err;
2339 	}
2340 
2341 	rc = qed_llh_alloc(cdev);
2342 	if (rc) {
2343 		DP_NOTICE(cdev,
2344 			  "Failed to allocate memory for the llh_info structure\n");
2345 		goto alloc_err;
2346 	}
2347 
2348 	cdev->reset_stats = kzalloc(sizeof(*cdev->reset_stats), GFP_KERNEL);
2349 	if (!cdev->reset_stats)
2350 		goto alloc_no_mem;
2351 
2352 	return 0;
2353 
2354 alloc_no_mem:
2355 	rc = -ENOMEM;
2356 alloc_err:
2357 	qed_resc_free(cdev);
2358 	return rc;
2359 }
2360 
qed_fw_err_handler(struct qed_hwfn * p_hwfn,u8 opcode,u16 echo,union event_ring_data * data,u8 fw_return_code)2361 static int qed_fw_err_handler(struct qed_hwfn *p_hwfn,
2362 			      u8 opcode,
2363 			      u16 echo,
2364 			      union event_ring_data *data, u8 fw_return_code)
2365 {
2366 	if (fw_return_code != COMMON_ERR_CODE_ERROR)
2367 		goto eqe_unexpected;
2368 
2369 	if (data->err_data.recovery_scope == ERR_SCOPE_FUNC &&
2370 	    le16_to_cpu(data->err_data.entity_id) >= MAX_NUM_PFS) {
2371 		qed_sriov_vfpf_malicious(p_hwfn, &data->err_data);
2372 		return 0;
2373 	}
2374 
2375 eqe_unexpected:
2376 	DP_ERR(p_hwfn,
2377 	       "Skipping unexpected eqe 0x%02x, FW return code 0x%x, echo 0x%x\n",
2378 	       opcode, fw_return_code, echo);
2379 	return -EINVAL;
2380 }
2381 
qed_common_eqe_event(struct qed_hwfn * p_hwfn,u8 opcode,__le16 echo,union event_ring_data * data,u8 fw_return_code)2382 static int qed_common_eqe_event(struct qed_hwfn *p_hwfn,
2383 				u8 opcode,
2384 				__le16 echo,
2385 				union event_ring_data *data,
2386 				u8 fw_return_code)
2387 {
2388 	switch (opcode) {
2389 	case COMMON_EVENT_VF_PF_CHANNEL:
2390 	case COMMON_EVENT_VF_FLR:
2391 		return qed_sriov_eqe_event(p_hwfn, opcode, echo, data,
2392 					   fw_return_code);
2393 	case COMMON_EVENT_FW_ERROR:
2394 		return qed_fw_err_handler(p_hwfn, opcode,
2395 					  le16_to_cpu(echo), data,
2396 					  fw_return_code);
2397 	default:
2398 		DP_INFO(p_hwfn->cdev, "Unknown eqe event 0x%02x, echo 0x%x\n",
2399 			opcode, echo);
2400 		return -EINVAL;
2401 	}
2402 }
2403 
qed_resc_setup(struct qed_dev * cdev)2404 void qed_resc_setup(struct qed_dev *cdev)
2405 {
2406 	int i;
2407 
2408 	if (IS_VF(cdev)) {
2409 		for_each_hwfn(cdev, i)
2410 			qed_l2_setup(&cdev->hwfns[i]);
2411 		return;
2412 	}
2413 
2414 	for_each_hwfn(cdev, i) {
2415 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
2416 
2417 		qed_cxt_mngr_setup(p_hwfn);
2418 		qed_spq_setup(p_hwfn);
2419 		qed_eq_setup(p_hwfn);
2420 		qed_consq_setup(p_hwfn);
2421 
2422 		/* Read shadow of current MFW mailbox */
2423 		qed_mcp_read_mb(p_hwfn, p_hwfn->p_main_ptt);
2424 		memcpy(p_hwfn->mcp_info->mfw_mb_shadow,
2425 		       p_hwfn->mcp_info->mfw_mb_cur,
2426 		       p_hwfn->mcp_info->mfw_mb_length);
2427 
2428 		qed_int_setup(p_hwfn, p_hwfn->p_main_ptt);
2429 
2430 		qed_l2_setup(p_hwfn);
2431 		qed_iov_setup(p_hwfn);
2432 		qed_spq_register_async_cb(p_hwfn, PROTOCOLID_COMMON,
2433 					  qed_common_eqe_event);
2434 #ifdef CONFIG_QED_LL2
2435 		if (p_hwfn->using_ll2)
2436 			qed_ll2_setup(p_hwfn);
2437 #endif
2438 		if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
2439 			qed_fcoe_setup(p_hwfn);
2440 
2441 		if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
2442 			qed_iscsi_setup(p_hwfn);
2443 			qed_ooo_setup(p_hwfn);
2444 		}
2445 
2446 		if (p_hwfn->hw_info.personality == QED_PCI_NVMETCP) {
2447 			qed_nvmetcp_setup(p_hwfn);
2448 			qed_ooo_setup(p_hwfn);
2449 		}
2450 	}
2451 }
2452 
2453 #define FINAL_CLEANUP_POLL_CNT          (100)
2454 #define FINAL_CLEANUP_POLL_TIME         (10)
qed_final_cleanup(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u16 id,bool is_vf)2455 int qed_final_cleanup(struct qed_hwfn *p_hwfn,
2456 		      struct qed_ptt *p_ptt, u16 id, bool is_vf)
2457 {
2458 	u32 command = 0, addr, count = FINAL_CLEANUP_POLL_CNT;
2459 	int rc = -EBUSY;
2460 
2461 	addr = GET_GTT_REG_ADDR(GTT_BAR0_MAP_REG_USDM_RAM,
2462 				USTORM_FLR_FINAL_ACK, p_hwfn->rel_pf_id);
2463 	if (is_vf)
2464 		id += 0x10;
2465 
2466 	command |= X_FINAL_CLEANUP_AGG_INT <<
2467 		SDM_AGG_INT_COMP_PARAMS_AGG_INT_INDEX_SHIFT;
2468 	command |= 1 << SDM_AGG_INT_COMP_PARAMS_AGG_VECTOR_ENABLE_SHIFT;
2469 	command |= id << SDM_AGG_INT_COMP_PARAMS_AGG_VECTOR_BIT_SHIFT;
2470 	command |= SDM_COMP_TYPE_AGG_INT << SDM_OP_GEN_COMP_TYPE_SHIFT;
2471 
2472 	/* Make sure notification is not set before initiating final cleanup */
2473 	if (REG_RD(p_hwfn, addr)) {
2474 		DP_NOTICE(p_hwfn,
2475 			  "Unexpected; Found final cleanup notification before initiating final cleanup\n");
2476 		REG_WR(p_hwfn, addr, 0);
2477 	}
2478 
2479 	DP_VERBOSE(p_hwfn, QED_MSG_IOV,
2480 		   "Sending final cleanup for PFVF[%d] [Command %08x]\n",
2481 		   id, command);
2482 
2483 	qed_wr(p_hwfn, p_ptt, XSDM_REG_OPERATION_GEN, command);
2484 
2485 	/* Poll until completion */
2486 	while (!REG_RD(p_hwfn, addr) && count--)
2487 		msleep(FINAL_CLEANUP_POLL_TIME);
2488 
2489 	if (REG_RD(p_hwfn, addr))
2490 		rc = 0;
2491 	else
2492 		DP_NOTICE(p_hwfn,
2493 			  "Failed to receive FW final cleanup notification\n");
2494 
2495 	/* Cleanup afterwards */
2496 	REG_WR(p_hwfn, addr, 0);
2497 
2498 	return rc;
2499 }
2500 
qed_calc_hw_mode(struct qed_hwfn * p_hwfn)2501 static int qed_calc_hw_mode(struct qed_hwfn *p_hwfn)
2502 {
2503 	int hw_mode = 0;
2504 
2505 	if (QED_IS_BB_B0(p_hwfn->cdev)) {
2506 		hw_mode |= 1 << MODE_BB;
2507 	} else if (QED_IS_AH(p_hwfn->cdev)) {
2508 		hw_mode |= 1 << MODE_K2;
2509 	} else {
2510 		DP_NOTICE(p_hwfn, "Unknown chip type %#x\n",
2511 			  p_hwfn->cdev->type);
2512 		return -EINVAL;
2513 	}
2514 
2515 	switch (p_hwfn->cdev->num_ports_in_engine) {
2516 	case 1:
2517 		hw_mode |= 1 << MODE_PORTS_PER_ENG_1;
2518 		break;
2519 	case 2:
2520 		hw_mode |= 1 << MODE_PORTS_PER_ENG_2;
2521 		break;
2522 	case 4:
2523 		hw_mode |= 1 << MODE_PORTS_PER_ENG_4;
2524 		break;
2525 	default:
2526 		DP_NOTICE(p_hwfn, "num_ports_in_engine = %d not supported\n",
2527 			  p_hwfn->cdev->num_ports_in_engine);
2528 		return -EINVAL;
2529 	}
2530 
2531 	if (test_bit(QED_MF_OVLAN_CLSS, &p_hwfn->cdev->mf_bits))
2532 		hw_mode |= 1 << MODE_MF_SD;
2533 	else
2534 		hw_mode |= 1 << MODE_MF_SI;
2535 
2536 	hw_mode |= 1 << MODE_ASIC;
2537 
2538 	if (p_hwfn->cdev->num_hwfns > 1)
2539 		hw_mode |= 1 << MODE_100G;
2540 
2541 	p_hwfn->hw_info.hw_mode = hw_mode;
2542 
2543 	DP_VERBOSE(p_hwfn, (NETIF_MSG_PROBE | NETIF_MSG_IFUP),
2544 		   "Configuring function for hw_mode: 0x%08x\n",
2545 		   p_hwfn->hw_info.hw_mode);
2546 
2547 	return 0;
2548 }
2549 
2550 /* Init run time data for all PFs on an engine. */
qed_init_cau_rt_data(struct qed_dev * cdev)2551 static void qed_init_cau_rt_data(struct qed_dev *cdev)
2552 {
2553 	u32 offset = CAU_REG_SB_VAR_MEMORY_RT_OFFSET;
2554 	int i, igu_sb_id;
2555 
2556 	for_each_hwfn(cdev, i) {
2557 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
2558 		struct qed_igu_info *p_igu_info;
2559 		struct qed_igu_block *p_block;
2560 		struct cau_sb_entry sb_entry;
2561 
2562 		p_igu_info = p_hwfn->hw_info.p_igu_info;
2563 
2564 		for (igu_sb_id = 0;
2565 		     igu_sb_id < QED_MAPPING_MEMORY_SIZE(cdev); igu_sb_id++) {
2566 			p_block = &p_igu_info->entry[igu_sb_id];
2567 
2568 			if (!p_block->is_pf)
2569 				continue;
2570 
2571 			qed_init_cau_sb_entry(p_hwfn, &sb_entry,
2572 					      p_block->function_id, 0, 0);
2573 			STORE_RT_REG_AGG(p_hwfn, offset + igu_sb_id * 2,
2574 					 sb_entry);
2575 		}
2576 	}
2577 }
2578 
qed_init_cache_line_size(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)2579 static void qed_init_cache_line_size(struct qed_hwfn *p_hwfn,
2580 				     struct qed_ptt *p_ptt)
2581 {
2582 	u32 val, wr_mbs, cache_line_size;
2583 
2584 	val = qed_rd(p_hwfn, p_ptt, PSWRQ2_REG_WR_MBS0);
2585 	switch (val) {
2586 	case 0:
2587 		wr_mbs = 128;
2588 		break;
2589 	case 1:
2590 		wr_mbs = 256;
2591 		break;
2592 	case 2:
2593 		wr_mbs = 512;
2594 		break;
2595 	default:
2596 		DP_INFO(p_hwfn,
2597 			"Unexpected value of PSWRQ2_REG_WR_MBS0 [0x%x]. Avoid configuring PGLUE_B_REG_CACHE_LINE_SIZE.\n",
2598 			val);
2599 		return;
2600 	}
2601 
2602 	cache_line_size = min_t(u32, L1_CACHE_BYTES, wr_mbs);
2603 	switch (cache_line_size) {
2604 	case 32:
2605 		val = 0;
2606 		break;
2607 	case 64:
2608 		val = 1;
2609 		break;
2610 	case 128:
2611 		val = 2;
2612 		break;
2613 	case 256:
2614 		val = 3;
2615 		break;
2616 	default:
2617 		DP_INFO(p_hwfn,
2618 			"Unexpected value of cache line size [0x%x]. Avoid configuring PGLUE_B_REG_CACHE_LINE_SIZE.\n",
2619 			cache_line_size);
2620 	}
2621 
2622 	if (wr_mbs < L1_CACHE_BYTES)
2623 		DP_INFO(p_hwfn,
2624 			"The cache line size for padding is suboptimal for performance [OS cache line size 0x%x, wr mbs 0x%x]\n",
2625 			L1_CACHE_BYTES, wr_mbs);
2626 
2627 	STORE_RT_REG(p_hwfn, PGLUE_REG_B_CACHE_LINE_SIZE_RT_OFFSET, val);
2628 	if (val > 0) {
2629 		STORE_RT_REG(p_hwfn, PSWRQ2_REG_DRAM_ALIGN_WR_RT_OFFSET, val);
2630 		STORE_RT_REG(p_hwfn, PSWRQ2_REG_DRAM_ALIGN_RD_RT_OFFSET, val);
2631 	}
2632 }
2633 
qed_hw_init_common(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,int hw_mode)2634 static int qed_hw_init_common(struct qed_hwfn *p_hwfn,
2635 			      struct qed_ptt *p_ptt, int hw_mode)
2636 {
2637 	struct qed_qm_info *qm_info = &p_hwfn->qm_info;
2638 	struct qed_qm_common_rt_init_params *params;
2639 	struct qed_dev *cdev = p_hwfn->cdev;
2640 	u8 vf_id, max_num_vfs;
2641 	u16 num_pfs, pf_id;
2642 	u32 concrete_fid;
2643 	int rc = 0;
2644 
2645 	params = kzalloc(sizeof(*params), GFP_KERNEL);
2646 	if (!params) {
2647 		DP_NOTICE(p_hwfn->cdev,
2648 			  "Failed to allocate common init params\n");
2649 
2650 		return -ENOMEM;
2651 	}
2652 
2653 	qed_init_cau_rt_data(cdev);
2654 
2655 	/* Program GTT windows */
2656 	qed_gtt_init(p_hwfn);
2657 
2658 	if (p_hwfn->mcp_info) {
2659 		if (p_hwfn->mcp_info->func_info.bandwidth_max)
2660 			qm_info->pf_rl_en = true;
2661 		if (p_hwfn->mcp_info->func_info.bandwidth_min)
2662 			qm_info->pf_wfq_en = true;
2663 	}
2664 
2665 	params->max_ports_per_engine = p_hwfn->cdev->num_ports_in_engine;
2666 	params->max_phys_tcs_per_port = qm_info->max_phys_tcs_per_port;
2667 	params->pf_rl_en = qm_info->pf_rl_en;
2668 	params->pf_wfq_en = qm_info->pf_wfq_en;
2669 	params->global_rl_en = qm_info->vport_rl_en;
2670 	params->vport_wfq_en = qm_info->vport_wfq_en;
2671 	params->port_params = qm_info->qm_port_params;
2672 
2673 	qed_qm_common_rt_init(p_hwfn, params);
2674 
2675 	qed_cxt_hw_init_common(p_hwfn);
2676 
2677 	qed_init_cache_line_size(p_hwfn, p_ptt);
2678 
2679 	rc = qed_init_run(p_hwfn, p_ptt, PHASE_ENGINE, ANY_PHASE_ID, hw_mode);
2680 	if (rc)
2681 		goto out;
2682 
2683 	qed_wr(p_hwfn, p_ptt, PSWRQ2_REG_L2P_VALIDATE_VFID, 0);
2684 	qed_wr(p_hwfn, p_ptt, PGLUE_B_REG_USE_CLIENTID_IN_TAG, 1);
2685 
2686 	if (QED_IS_BB(p_hwfn->cdev)) {
2687 		num_pfs = NUM_OF_ENG_PFS(p_hwfn->cdev);
2688 		for (pf_id = 0; pf_id < num_pfs; pf_id++) {
2689 			qed_fid_pretend(p_hwfn, p_ptt, pf_id);
2690 			qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_ROCE, 0x0);
2691 			qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_TCP, 0x0);
2692 		}
2693 		/* pretend to original PF */
2694 		qed_fid_pretend(p_hwfn, p_ptt, p_hwfn->rel_pf_id);
2695 	}
2696 
2697 	max_num_vfs = QED_IS_AH(cdev) ? MAX_NUM_VFS_K2 : MAX_NUM_VFS_BB;
2698 	for (vf_id = 0; vf_id < max_num_vfs; vf_id++) {
2699 		concrete_fid = qed_vfid_to_concrete(p_hwfn, vf_id);
2700 		qed_fid_pretend(p_hwfn, p_ptt, (u16)concrete_fid);
2701 		qed_wr(p_hwfn, p_ptt, CCFC_REG_STRONG_ENABLE_VF, 0x1);
2702 		qed_wr(p_hwfn, p_ptt, CCFC_REG_WEAK_ENABLE_VF, 0x0);
2703 		qed_wr(p_hwfn, p_ptt, TCFC_REG_STRONG_ENABLE_VF, 0x1);
2704 		qed_wr(p_hwfn, p_ptt, TCFC_REG_WEAK_ENABLE_VF, 0x0);
2705 	}
2706 	/* pretend to original PF */
2707 	qed_fid_pretend(p_hwfn, p_ptt, p_hwfn->rel_pf_id);
2708 
2709 out:
2710 	kfree(params);
2711 
2712 	return rc;
2713 }
2714 
2715 static int
qed_hw_init_dpi_size(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u32 pwm_region_size,u32 n_cpus)2716 qed_hw_init_dpi_size(struct qed_hwfn *p_hwfn,
2717 		     struct qed_ptt *p_ptt, u32 pwm_region_size, u32 n_cpus)
2718 {
2719 	u32 dpi_bit_shift, dpi_count, dpi_page_size;
2720 	u32 min_dpis;
2721 	u32 n_wids;
2722 
2723 	/* Calculate DPI size */
2724 	n_wids = max_t(u32, QED_MIN_WIDS, n_cpus);
2725 	dpi_page_size = QED_WID_SIZE * roundup_pow_of_two(n_wids);
2726 	dpi_page_size = (dpi_page_size + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1);
2727 	dpi_bit_shift = ilog2(dpi_page_size / 4096);
2728 	dpi_count = pwm_region_size / dpi_page_size;
2729 
2730 	min_dpis = p_hwfn->pf_params.rdma_pf_params.min_dpis;
2731 	min_dpis = max_t(u32, QED_MIN_DPIS, min_dpis);
2732 
2733 	p_hwfn->dpi_size = dpi_page_size;
2734 	p_hwfn->dpi_count = dpi_count;
2735 
2736 	qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_DPI_BIT_SHIFT, dpi_bit_shift);
2737 
2738 	if (dpi_count < min_dpis)
2739 		return -EINVAL;
2740 
2741 	return 0;
2742 }
2743 
2744 enum QED_ROCE_EDPM_MODE {
2745 	QED_ROCE_EDPM_MODE_ENABLE = 0,
2746 	QED_ROCE_EDPM_MODE_FORCE_ON = 1,
2747 	QED_ROCE_EDPM_MODE_DISABLE = 2,
2748 };
2749 
qed_edpm_enabled(struct qed_hwfn * p_hwfn)2750 bool qed_edpm_enabled(struct qed_hwfn *p_hwfn)
2751 {
2752 	if (p_hwfn->dcbx_no_edpm || p_hwfn->db_bar_no_edpm)
2753 		return false;
2754 
2755 	return true;
2756 }
2757 
2758 static int
qed_hw_init_pf_doorbell_bar(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)2759 qed_hw_init_pf_doorbell_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
2760 {
2761 	u32 pwm_regsize, norm_regsize;
2762 	u32 non_pwm_conn, min_addr_reg1;
2763 	u32 db_bar_size, n_cpus = 1;
2764 	u32 roce_edpm_mode;
2765 	u32 pf_dems_shift;
2766 	int rc = 0;
2767 	u8 cond;
2768 
2769 	db_bar_size = qed_hw_bar_size(p_hwfn, p_ptt, BAR_ID_1);
2770 	if (p_hwfn->cdev->num_hwfns > 1)
2771 		db_bar_size /= 2;
2772 
2773 	/* Calculate doorbell regions */
2774 	non_pwm_conn = qed_cxt_get_proto_cid_start(p_hwfn, PROTOCOLID_CORE) +
2775 		       qed_cxt_get_proto_cid_count(p_hwfn, PROTOCOLID_CORE,
2776 						   NULL) +
2777 		       qed_cxt_get_proto_cid_count(p_hwfn, PROTOCOLID_ETH,
2778 						   NULL);
2779 	norm_regsize = roundup(QED_PF_DEMS_SIZE * non_pwm_conn, PAGE_SIZE);
2780 	min_addr_reg1 = norm_regsize / 4096;
2781 	pwm_regsize = db_bar_size - norm_regsize;
2782 
2783 	/* Check that the normal and PWM sizes are valid */
2784 	if (db_bar_size < norm_regsize) {
2785 		DP_ERR(p_hwfn->cdev,
2786 		       "Doorbell BAR size 0x%x is too small (normal region is 0x%0x )\n",
2787 		       db_bar_size, norm_regsize);
2788 		return -EINVAL;
2789 	}
2790 
2791 	if (pwm_regsize < QED_MIN_PWM_REGION) {
2792 		DP_ERR(p_hwfn->cdev,
2793 		       "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",
2794 		       pwm_regsize,
2795 		       QED_MIN_PWM_REGION, db_bar_size, norm_regsize);
2796 		return -EINVAL;
2797 	}
2798 
2799 	/* Calculate number of DPIs */
2800 	roce_edpm_mode = p_hwfn->pf_params.rdma_pf_params.roce_edpm_mode;
2801 	if ((roce_edpm_mode == QED_ROCE_EDPM_MODE_ENABLE) ||
2802 	    ((roce_edpm_mode == QED_ROCE_EDPM_MODE_FORCE_ON))) {
2803 		/* Either EDPM is mandatory, or we are attempting to allocate a
2804 		 * WID per CPU.
2805 		 */
2806 		n_cpus = num_present_cpus();
2807 		rc = qed_hw_init_dpi_size(p_hwfn, p_ptt, pwm_regsize, n_cpus);
2808 	}
2809 
2810 	cond = (rc && (roce_edpm_mode == QED_ROCE_EDPM_MODE_ENABLE)) ||
2811 	       (roce_edpm_mode == QED_ROCE_EDPM_MODE_DISABLE);
2812 	if (cond || p_hwfn->dcbx_no_edpm) {
2813 		/* Either EDPM is disabled from user configuration, or it is
2814 		 * disabled via DCBx, or it is not mandatory and we failed to
2815 		 * allocated a WID per CPU.
2816 		 */
2817 		n_cpus = 1;
2818 		rc = qed_hw_init_dpi_size(p_hwfn, p_ptt, pwm_regsize, n_cpus);
2819 
2820 		if (cond)
2821 			qed_rdma_dpm_bar(p_hwfn, p_ptt);
2822 	}
2823 
2824 	p_hwfn->wid_count = (u16)n_cpus;
2825 
2826 	DP_INFO(p_hwfn,
2827 		"doorbell bar: normal_region_size=%d, pwm_region_size=%d, dpi_size=%d, dpi_count=%d, roce_edpm=%s, page_size=%lu\n",
2828 		norm_regsize,
2829 		pwm_regsize,
2830 		p_hwfn->dpi_size,
2831 		p_hwfn->dpi_count,
2832 		(!qed_edpm_enabled(p_hwfn)) ?
2833 		"disabled" : "enabled", PAGE_SIZE);
2834 
2835 	if (rc) {
2836 		DP_ERR(p_hwfn,
2837 		       "Failed to allocate enough DPIs. Allocated %d but the current minimum is %d.\n",
2838 		       p_hwfn->dpi_count,
2839 		       p_hwfn->pf_params.rdma_pf_params.min_dpis);
2840 		return -EINVAL;
2841 	}
2842 
2843 	p_hwfn->dpi_start_offset = norm_regsize;
2844 
2845 	/* DEMS size is configured log2 of DWORDs, hence the division by 4 */
2846 	pf_dems_shift = ilog2(QED_PF_DEMS_SIZE / 4);
2847 	qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_ICID_BIT_SHIFT_NORM, pf_dems_shift);
2848 	qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_MIN_ADDR_REG1, min_addr_reg1);
2849 
2850 	return 0;
2851 }
2852 
qed_hw_init_port(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,int hw_mode)2853 static int qed_hw_init_port(struct qed_hwfn *p_hwfn,
2854 			    struct qed_ptt *p_ptt, int hw_mode)
2855 {
2856 	int rc = 0;
2857 
2858 	/* In CMT the gate should be cleared by the 2nd hwfn */
2859 	if (!QED_IS_CMT(p_hwfn->cdev) || !IS_LEAD_HWFN(p_hwfn))
2860 		STORE_RT_REG(p_hwfn, NIG_REG_BRB_GATE_DNTFWD_PORT_RT_OFFSET, 0);
2861 
2862 	rc = qed_init_run(p_hwfn, p_ptt, PHASE_PORT, p_hwfn->port_id, hw_mode);
2863 	if (rc)
2864 		return rc;
2865 
2866 	qed_wr(p_hwfn, p_ptt, PGLUE_B_REG_MASTER_WRITE_PAD_ENABLE, 0);
2867 
2868 	return 0;
2869 }
2870 
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)2871 static int qed_hw_init_pf(struct qed_hwfn *p_hwfn,
2872 			  struct qed_ptt *p_ptt,
2873 			  struct qed_tunnel_info *p_tunn,
2874 			  int hw_mode,
2875 			  bool b_hw_start,
2876 			  enum qed_int_mode int_mode,
2877 			  bool allow_npar_tx_switch)
2878 {
2879 	u8 rel_pf_id = p_hwfn->rel_pf_id;
2880 	int rc = 0;
2881 
2882 	if (p_hwfn->mcp_info) {
2883 		struct qed_mcp_function_info *p_info;
2884 
2885 		p_info = &p_hwfn->mcp_info->func_info;
2886 		if (p_info->bandwidth_min)
2887 			p_hwfn->qm_info.pf_wfq = p_info->bandwidth_min;
2888 
2889 		/* Update rate limit once we'll actually have a link */
2890 		p_hwfn->qm_info.pf_rl = 100000;
2891 	}
2892 
2893 	qed_cxt_hw_init_pf(p_hwfn, p_ptt);
2894 
2895 	qed_int_igu_init_rt(p_hwfn);
2896 
2897 	/* Set VLAN in NIG if needed */
2898 	if (hw_mode & BIT(MODE_MF_SD)) {
2899 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW, "Configuring LLH_FUNC_TAG\n");
2900 		STORE_RT_REG(p_hwfn, NIG_REG_LLH_FUNC_TAG_EN_RT_OFFSET, 1);
2901 		STORE_RT_REG(p_hwfn, NIG_REG_LLH_FUNC_TAG_VALUE_RT_OFFSET,
2902 			     p_hwfn->hw_info.ovlan);
2903 
2904 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
2905 			   "Configuring LLH_FUNC_FILTER_HDR_SEL\n");
2906 		STORE_RT_REG(p_hwfn, NIG_REG_LLH_FUNC_FILTER_HDR_SEL_RT_OFFSET,
2907 			     1);
2908 	}
2909 
2910 	/* Enable classification by MAC if needed */
2911 	if (hw_mode & BIT(MODE_MF_SI)) {
2912 		DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
2913 			   "Configuring TAGMAC_CLS_TYPE\n");
2914 		STORE_RT_REG(p_hwfn,
2915 			     NIG_REG_LLH_FUNC_TAGMAC_CLS_TYPE_RT_OFFSET, 1);
2916 	}
2917 
2918 	/* Protocol Configuration */
2919 	STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_TCP_RT_OFFSET,
2920 		     ((p_hwfn->hw_info.personality == QED_PCI_ISCSI) ||
2921 			 (p_hwfn->hw_info.personality == QED_PCI_NVMETCP)) ? 1 : 0);
2922 	STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_FCOE_RT_OFFSET,
2923 		     (p_hwfn->hw_info.personality == QED_PCI_FCOE) ? 1 : 0);
2924 	STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_ROCE_RT_OFFSET, 0);
2925 
2926 	/* Sanity check before the PF init sequence that uses DMAE */
2927 	rc = qed_dmae_sanity(p_hwfn, p_ptt, "pf_phase");
2928 	if (rc)
2929 		return rc;
2930 
2931 	/* PF Init sequence */
2932 	rc = qed_init_run(p_hwfn, p_ptt, PHASE_PF, rel_pf_id, hw_mode);
2933 	if (rc)
2934 		return rc;
2935 
2936 	/* QM_PF Init sequence (may be invoked separately e.g. for DCB) */
2937 	rc = qed_init_run(p_hwfn, p_ptt, PHASE_QM_PF, rel_pf_id, hw_mode);
2938 	if (rc)
2939 		return rc;
2940 
2941 	qed_fw_overlay_init_ram(p_hwfn, p_ptt, p_hwfn->fw_overlay_mem);
2942 
2943 	/* Pure runtime initializations - directly to the HW  */
2944 	qed_int_igu_init_pure_rt(p_hwfn, p_ptt, true, true);
2945 
2946 	rc = qed_hw_init_pf_doorbell_bar(p_hwfn, p_ptt);
2947 	if (rc)
2948 		return rc;
2949 
2950 	/* Use the leading hwfn since in CMT only NIG #0 is operational */
2951 	if (IS_LEAD_HWFN(p_hwfn)) {
2952 		rc = qed_llh_hw_init_pf(p_hwfn, p_ptt);
2953 		if (rc)
2954 			return rc;
2955 	}
2956 
2957 	if (b_hw_start) {
2958 		/* enable interrupts */
2959 		qed_int_igu_enable(p_hwfn, p_ptt, int_mode);
2960 
2961 		/* send function start command */
2962 		rc = qed_sp_pf_start(p_hwfn, p_ptt, p_tunn,
2963 				     allow_npar_tx_switch);
2964 		if (rc) {
2965 			DP_NOTICE(p_hwfn, "Function start ramrod failed\n");
2966 			return rc;
2967 		}
2968 		if (p_hwfn->hw_info.personality == QED_PCI_FCOE) {
2969 			qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_TAG1, BIT(2));
2970 			qed_wr(p_hwfn, p_ptt,
2971 			       PRS_REG_PKT_LEN_STAT_TAGS_NOT_COUNTED_FIRST,
2972 			       0x100);
2973 		}
2974 	}
2975 	return rc;
2976 }
2977 
qed_pglueb_set_pfid_enable(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,bool b_enable)2978 int qed_pglueb_set_pfid_enable(struct qed_hwfn *p_hwfn,
2979 			       struct qed_ptt *p_ptt, bool b_enable)
2980 {
2981 	u32 delay_idx = 0, val, set_val = b_enable ? 1 : 0;
2982 
2983 	/* Configure the PF's internal FID_enable for master transactions */
2984 	qed_wr(p_hwfn, p_ptt, PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER, set_val);
2985 
2986 	/* Wait until value is set - try for 1 second every 50us */
2987 	for (delay_idx = 0; delay_idx < 20000; delay_idx++) {
2988 		val = qed_rd(p_hwfn, p_ptt,
2989 			     PGLUE_B_REG_INTERNAL_PFID_ENABLE_MASTER);
2990 		if (val == set_val)
2991 			break;
2992 
2993 		usleep_range(50, 60);
2994 	}
2995 
2996 	if (val != set_val) {
2997 		DP_NOTICE(p_hwfn,
2998 			  "PFID_ENABLE_MASTER wasn't changed after a second\n");
2999 		return -EAGAIN;
3000 	}
3001 
3002 	return 0;
3003 }
3004 
qed_reset_mb_shadow(struct qed_hwfn * p_hwfn,struct qed_ptt * p_main_ptt)3005 static void qed_reset_mb_shadow(struct qed_hwfn *p_hwfn,
3006 				struct qed_ptt *p_main_ptt)
3007 {
3008 	/* Read shadow of current MFW mailbox */
3009 	qed_mcp_read_mb(p_hwfn, p_main_ptt);
3010 	memcpy(p_hwfn->mcp_info->mfw_mb_shadow,
3011 	       p_hwfn->mcp_info->mfw_mb_cur, p_hwfn->mcp_info->mfw_mb_length);
3012 }
3013 
3014 static void
qed_fill_load_req_params(struct qed_load_req_params * p_load_req,struct qed_drv_load_params * p_drv_load)3015 qed_fill_load_req_params(struct qed_load_req_params *p_load_req,
3016 			 struct qed_drv_load_params *p_drv_load)
3017 {
3018 	memset(p_load_req, 0, sizeof(*p_load_req));
3019 
3020 	p_load_req->drv_role = p_drv_load->is_crash_kernel ?
3021 			       QED_DRV_ROLE_KDUMP : QED_DRV_ROLE_OS;
3022 	p_load_req->timeout_val = p_drv_load->mfw_timeout_val;
3023 	p_load_req->avoid_eng_reset = p_drv_load->avoid_eng_reset;
3024 	p_load_req->override_force_load = p_drv_load->override_force_load;
3025 }
3026 
qed_vf_start(struct qed_hwfn * p_hwfn,struct qed_hw_init_params * p_params)3027 static int qed_vf_start(struct qed_hwfn *p_hwfn,
3028 			struct qed_hw_init_params *p_params)
3029 {
3030 	if (p_params->p_tunn) {
3031 		qed_vf_set_vf_start_tunn_update_param(p_params->p_tunn);
3032 		qed_vf_pf_tunnel_param_update(p_hwfn, p_params->p_tunn);
3033 	}
3034 
3035 	p_hwfn->b_int_enabled = true;
3036 
3037 	return 0;
3038 }
3039 
qed_pglueb_clear_err(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)3040 static void qed_pglueb_clear_err(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
3041 {
3042 	qed_wr(p_hwfn, p_ptt, PGLUE_B_REG_WAS_ERROR_PF_31_0_CLR,
3043 	       BIT(p_hwfn->abs_pf_id));
3044 }
3045 
qed_hw_init(struct qed_dev * cdev,struct qed_hw_init_params * p_params)3046 int qed_hw_init(struct qed_dev *cdev, struct qed_hw_init_params *p_params)
3047 {
3048 	struct qed_load_req_params load_req_params;
3049 	u32 load_code, resp, param, drv_mb_param;
3050 	bool b_default_mtu = true;
3051 	struct qed_hwfn *p_hwfn;
3052 	const u32 *fw_overlays;
3053 	u32 fw_overlays_len;
3054 	u16 ether_type;
3055 	int rc = 0, i;
3056 
3057 	if ((p_params->int_mode == QED_INT_MODE_MSI) && (cdev->num_hwfns > 1)) {
3058 		DP_NOTICE(cdev, "MSI mode is not supported for CMT devices\n");
3059 		return -EINVAL;
3060 	}
3061 
3062 	if (IS_PF(cdev)) {
3063 		rc = qed_init_fw_data(cdev, p_params->bin_fw_data);
3064 		if (rc)
3065 			return rc;
3066 	}
3067 
3068 	for_each_hwfn(cdev, i) {
3069 		p_hwfn = &cdev->hwfns[i];
3070 
3071 		/* If management didn't provide a default, set one of our own */
3072 		if (!p_hwfn->hw_info.mtu) {
3073 			p_hwfn->hw_info.mtu = 1500;
3074 			b_default_mtu = false;
3075 		}
3076 
3077 		if (IS_VF(cdev)) {
3078 			qed_vf_start(p_hwfn, p_params);
3079 			continue;
3080 		}
3081 
3082 		/* Some flows may keep variable set */
3083 		p_hwfn->mcp_info->mcp_handling_status = 0;
3084 
3085 		rc = qed_calc_hw_mode(p_hwfn);
3086 		if (rc)
3087 			return rc;
3088 
3089 		if (IS_PF(cdev) && (test_bit(QED_MF_8021Q_TAGGING,
3090 					     &cdev->mf_bits) ||
3091 				    test_bit(QED_MF_8021AD_TAGGING,
3092 					     &cdev->mf_bits))) {
3093 			if (test_bit(QED_MF_8021Q_TAGGING, &cdev->mf_bits))
3094 				ether_type = ETH_P_8021Q;
3095 			else
3096 				ether_type = ETH_P_8021AD;
3097 			STORE_RT_REG(p_hwfn, PRS_REG_TAG_ETHERTYPE_0_RT_OFFSET,
3098 				     ether_type);
3099 			STORE_RT_REG(p_hwfn, NIG_REG_TAG_ETHERTYPE_0_RT_OFFSET,
3100 				     ether_type);
3101 			STORE_RT_REG(p_hwfn, PBF_REG_TAG_ETHERTYPE_0_RT_OFFSET,
3102 				     ether_type);
3103 			STORE_RT_REG(p_hwfn, DORQ_REG_TAG1_ETHERTYPE_RT_OFFSET,
3104 				     ether_type);
3105 		}
3106 
3107 		qed_fill_load_req_params(&load_req_params,
3108 					 p_params->p_drv_load_params);
3109 		rc = qed_mcp_load_req(p_hwfn, p_hwfn->p_main_ptt,
3110 				      &load_req_params);
3111 		if (rc) {
3112 			DP_NOTICE(p_hwfn, "Failed sending a LOAD_REQ command\n");
3113 			return rc;
3114 		}
3115 
3116 		load_code = load_req_params.load_code;
3117 		DP_VERBOSE(p_hwfn, QED_MSG_SP,
3118 			   "Load request was sent. Load code: 0x%x\n",
3119 			   load_code);
3120 
3121 		/* Only relevant for recovery:
3122 		 * Clear the indication after LOAD_REQ is responded by the MFW.
3123 		 */
3124 		cdev->recov_in_prog = false;
3125 
3126 		qed_mcp_set_capabilities(p_hwfn, p_hwfn->p_main_ptt);
3127 
3128 		qed_reset_mb_shadow(p_hwfn, p_hwfn->p_main_ptt);
3129 
3130 		/* Clean up chip from previous driver if such remains exist.
3131 		 * This is not needed when the PF is the first one on the
3132 		 * engine, since afterwards we are going to init the FW.
3133 		 */
3134 		if (load_code != FW_MSG_CODE_DRV_LOAD_ENGINE) {
3135 			rc = qed_final_cleanup(p_hwfn, p_hwfn->p_main_ptt,
3136 					       p_hwfn->rel_pf_id, false);
3137 			if (rc) {
3138 				qed_hw_err_notify(p_hwfn, p_hwfn->p_main_ptt,
3139 						  QED_HW_ERR_RAMROD_FAIL,
3140 						  "Final cleanup failed\n");
3141 				goto load_err;
3142 			}
3143 		}
3144 
3145 		/* Log and clear previous pglue_b errors if such exist */
3146 		qed_pglueb_rbc_attn_handler(p_hwfn, p_hwfn->p_main_ptt, true);
3147 
3148 		/* Enable the PF's internal FID_enable in the PXP */
3149 		rc = qed_pglueb_set_pfid_enable(p_hwfn, p_hwfn->p_main_ptt,
3150 						true);
3151 		if (rc)
3152 			goto load_err;
3153 
3154 		/* Clear the pglue_b was_error indication.
3155 		 * In E4 it must be done after the BME and the internal
3156 		 * FID_enable for the PF are set, since VDMs may cause the
3157 		 * indication to be set again.
3158 		 */
3159 		qed_pglueb_clear_err(p_hwfn, p_hwfn->p_main_ptt);
3160 
3161 		fw_overlays = cdev->fw_data->fw_overlays;
3162 		fw_overlays_len = cdev->fw_data->fw_overlays_len;
3163 		p_hwfn->fw_overlay_mem =
3164 		    qed_fw_overlay_mem_alloc(p_hwfn, fw_overlays,
3165 					     fw_overlays_len);
3166 		if (!p_hwfn->fw_overlay_mem) {
3167 			DP_NOTICE(p_hwfn,
3168 				  "Failed to allocate fw overlay memory\n");
3169 			rc = -ENOMEM;
3170 			goto load_err;
3171 		}
3172 
3173 		switch (load_code) {
3174 		case FW_MSG_CODE_DRV_LOAD_ENGINE:
3175 			rc = qed_hw_init_common(p_hwfn, p_hwfn->p_main_ptt,
3176 						p_hwfn->hw_info.hw_mode);
3177 			if (rc)
3178 				break;
3179 			fallthrough;
3180 		case FW_MSG_CODE_DRV_LOAD_PORT:
3181 			rc = qed_hw_init_port(p_hwfn, p_hwfn->p_main_ptt,
3182 					      p_hwfn->hw_info.hw_mode);
3183 			if (rc)
3184 				break;
3185 
3186 			fallthrough;
3187 		case FW_MSG_CODE_DRV_LOAD_FUNCTION:
3188 			rc = qed_hw_init_pf(p_hwfn, p_hwfn->p_main_ptt,
3189 					    p_params->p_tunn,
3190 					    p_hwfn->hw_info.hw_mode,
3191 					    p_params->b_hw_start,
3192 					    p_params->int_mode,
3193 					    p_params->allow_npar_tx_switch);
3194 			break;
3195 		default:
3196 			DP_NOTICE(p_hwfn,
3197 				  "Unexpected load code [0x%08x]", load_code);
3198 			rc = -EINVAL;
3199 			break;
3200 		}
3201 
3202 		if (rc) {
3203 			DP_NOTICE(p_hwfn,
3204 				  "init phase failed for loadcode 0x%x (rc %d)\n",
3205 				  load_code, rc);
3206 			goto load_err;
3207 		}
3208 
3209 		rc = qed_mcp_load_done(p_hwfn, p_hwfn->p_main_ptt);
3210 		if (rc)
3211 			return rc;
3212 
3213 		/* send DCBX attention request command */
3214 		DP_VERBOSE(p_hwfn,
3215 			   QED_MSG_DCB,
3216 			   "sending phony dcbx set command to trigger DCBx attention handling\n");
3217 		rc = qed_mcp_cmd(p_hwfn, p_hwfn->p_main_ptt,
3218 				 DRV_MSG_CODE_SET_DCBX,
3219 				 1 << DRV_MB_PARAM_DCBX_NOTIFY_SHIFT,
3220 				 &resp, &param);
3221 		if (rc) {
3222 			DP_NOTICE(p_hwfn,
3223 				  "Failed to send DCBX attention request\n");
3224 			return rc;
3225 		}
3226 
3227 		p_hwfn->hw_init_done = true;
3228 	}
3229 
3230 	if (IS_PF(cdev)) {
3231 		p_hwfn = QED_LEADING_HWFN(cdev);
3232 
3233 		/* Get pre-negotiated values for stag, bandwidth etc. */
3234 		DP_VERBOSE(p_hwfn,
3235 			   QED_MSG_SPQ,
3236 			   "Sending GET_OEM_UPDATES command to trigger stag/bandwidth attention handling\n");
3237 		drv_mb_param = 1 << DRV_MB_PARAM_DUMMY_OEM_UPDATES_OFFSET;
3238 		rc = qed_mcp_cmd(p_hwfn, p_hwfn->p_main_ptt,
3239 				 DRV_MSG_CODE_GET_OEM_UPDATES,
3240 				 drv_mb_param, &resp, &param);
3241 		if (rc)
3242 			DP_NOTICE(p_hwfn,
3243 				  "Failed to send GET_OEM_UPDATES attention request\n");
3244 
3245 		drv_mb_param = STORM_FW_VERSION;
3246 		rc = qed_mcp_cmd(p_hwfn, p_hwfn->p_main_ptt,
3247 				 DRV_MSG_CODE_OV_UPDATE_STORM_FW_VER,
3248 				 drv_mb_param, &load_code, &param);
3249 		if (rc)
3250 			DP_INFO(p_hwfn, "Failed to update firmware version\n");
3251 
3252 		if (!b_default_mtu) {
3253 			rc = qed_mcp_ov_update_mtu(p_hwfn, p_hwfn->p_main_ptt,
3254 						   p_hwfn->hw_info.mtu);
3255 			if (rc)
3256 				DP_INFO(p_hwfn,
3257 					"Failed to update default mtu\n");
3258 		}
3259 
3260 		rc = qed_mcp_ov_update_driver_state(p_hwfn,
3261 						    p_hwfn->p_main_ptt,
3262 						  QED_OV_DRIVER_STATE_DISABLED);
3263 		if (rc)
3264 			DP_INFO(p_hwfn, "Failed to update driver state\n");
3265 
3266 		rc = qed_mcp_ov_update_eswitch(p_hwfn, p_hwfn->p_main_ptt,
3267 					       QED_OV_ESWITCH_NONE);
3268 		if (rc)
3269 			DP_INFO(p_hwfn, "Failed to update eswitch mode\n");
3270 	}
3271 
3272 	return 0;
3273 
3274 load_err:
3275 	/* The MFW load lock should be released also when initialization fails.
3276 	 */
3277 	qed_mcp_load_done(p_hwfn, p_hwfn->p_main_ptt);
3278 	return rc;
3279 }
3280 
3281 #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)3282 static void qed_hw_timers_stop(struct qed_dev *cdev,
3283 			       struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
3284 {
3285 	int i;
3286 
3287 	/* close timers */
3288 	qed_wr(p_hwfn, p_ptt, TM_REG_PF_ENABLE_CONN, 0x0);
3289 	qed_wr(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK, 0x0);
3290 
3291 	if (cdev->recov_in_prog)
3292 		return;
3293 
3294 	for (i = 0; i < QED_HW_STOP_RETRY_LIMIT; i++) {
3295 		if ((!qed_rd(p_hwfn, p_ptt,
3296 			     TM_REG_PF_SCAN_ACTIVE_CONN)) &&
3297 		    (!qed_rd(p_hwfn, p_ptt, TM_REG_PF_SCAN_ACTIVE_TASK)))
3298 			break;
3299 
3300 		/* Dependent on number of connection/tasks, possibly
3301 		 * 1ms sleep is required between polls
3302 		 */
3303 		usleep_range(1000, 2000);
3304 	}
3305 
3306 	if (i < QED_HW_STOP_RETRY_LIMIT)
3307 		return;
3308 
3309 	DP_NOTICE(p_hwfn,
3310 		  "Timers linear scans are not over [Connection %02x Tasks %02x]\n",
3311 		  (u8)qed_rd(p_hwfn, p_ptt, TM_REG_PF_SCAN_ACTIVE_CONN),
3312 		  (u8)qed_rd(p_hwfn, p_ptt, TM_REG_PF_SCAN_ACTIVE_TASK));
3313 }
3314 
qed_hw_timers_stop_all(struct qed_dev * cdev)3315 void qed_hw_timers_stop_all(struct qed_dev *cdev)
3316 {
3317 	int j;
3318 
3319 	for_each_hwfn(cdev, j) {
3320 		struct qed_hwfn *p_hwfn = &cdev->hwfns[j];
3321 		struct qed_ptt *p_ptt = p_hwfn->p_main_ptt;
3322 
3323 		qed_hw_timers_stop(cdev, p_hwfn, p_ptt);
3324 	}
3325 }
3326 
qed_hw_stop(struct qed_dev * cdev)3327 int qed_hw_stop(struct qed_dev *cdev)
3328 {
3329 	struct qed_hwfn *p_hwfn;
3330 	struct qed_ptt *p_ptt;
3331 	int rc, rc2 = 0;
3332 	int j;
3333 
3334 	for_each_hwfn(cdev, j) {
3335 		p_hwfn = &cdev->hwfns[j];
3336 		p_ptt = p_hwfn->p_main_ptt;
3337 
3338 		DP_VERBOSE(p_hwfn, NETIF_MSG_IFDOWN, "Stopping hw/fw\n");
3339 
3340 		if (IS_VF(cdev)) {
3341 			qed_vf_pf_int_cleanup(p_hwfn);
3342 			rc = qed_vf_pf_reset(p_hwfn);
3343 			if (rc) {
3344 				DP_NOTICE(p_hwfn,
3345 					  "qed_vf_pf_reset failed. rc = %d.\n",
3346 					  rc);
3347 				rc2 = -EINVAL;
3348 			}
3349 			continue;
3350 		}
3351 
3352 		/* mark the hw as uninitialized... */
3353 		p_hwfn->hw_init_done = false;
3354 
3355 		/* Send unload command to MCP */
3356 		if (!cdev->recov_in_prog) {
3357 			rc = qed_mcp_unload_req(p_hwfn, p_ptt);
3358 			if (rc) {
3359 				DP_NOTICE(p_hwfn,
3360 					  "Failed sending a UNLOAD_REQ command. rc = %d.\n",
3361 					  rc);
3362 				rc2 = -EINVAL;
3363 			}
3364 		}
3365 
3366 		qed_slowpath_irq_sync(p_hwfn);
3367 
3368 		/* After this point no MFW attentions are expected, e.g. prevent
3369 		 * race between pf stop and dcbx pf update.
3370 		 */
3371 		rc = qed_sp_pf_stop(p_hwfn);
3372 		if (rc) {
3373 			DP_NOTICE(p_hwfn,
3374 				  "Failed to close PF against FW [rc = %d]. Continue to stop HW to prevent illegal host access by the device.\n",
3375 				  rc);
3376 			rc2 = -EINVAL;
3377 		}
3378 
3379 		qed_wr(p_hwfn, p_ptt,
3380 		       NIG_REG_RX_LLH_BRB_GATE_DNTFWD_PERPF, 0x1);
3381 
3382 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_TCP, 0x0);
3383 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_UDP, 0x0);
3384 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_FCOE, 0x0);
3385 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_ROCE, 0x0);
3386 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_OPENFLOW, 0x0);
3387 
3388 		qed_hw_timers_stop(cdev, p_hwfn, p_ptt);
3389 
3390 		/* Disable Attention Generation */
3391 		qed_int_igu_disable_int(p_hwfn, p_ptt);
3392 
3393 		qed_wr(p_hwfn, p_ptt, IGU_REG_LEADING_EDGE_LATCH, 0);
3394 		qed_wr(p_hwfn, p_ptt, IGU_REG_TRAILING_EDGE_LATCH, 0);
3395 
3396 		qed_int_igu_init_pure_rt(p_hwfn, p_ptt, false, true);
3397 
3398 		/* Need to wait 1ms to guarantee SBs are cleared */
3399 		usleep_range(1000, 2000);
3400 
3401 		/* Disable PF in HW blocks */
3402 		qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_DB_ENABLE, 0);
3403 		qed_wr(p_hwfn, p_ptt, QM_REG_PF_EN, 0);
3404 
3405 		if (IS_LEAD_HWFN(p_hwfn) &&
3406 		    test_bit(QED_MF_LLH_MAC_CLSS, &cdev->mf_bits) &&
3407 		    !QED_IS_FCOE_PERSONALITY(p_hwfn))
3408 			qed_llh_remove_mac_filter(cdev, 0,
3409 						  p_hwfn->hw_info.hw_mac_addr);
3410 
3411 		if (!cdev->recov_in_prog) {
3412 			rc = qed_mcp_unload_done(p_hwfn, p_ptt);
3413 			if (rc) {
3414 				DP_NOTICE(p_hwfn,
3415 					  "Failed sending a UNLOAD_DONE command. rc = %d.\n",
3416 					  rc);
3417 				rc2 = -EINVAL;
3418 			}
3419 		}
3420 	}
3421 
3422 	if (IS_PF(cdev) && !cdev->recov_in_prog) {
3423 		p_hwfn = QED_LEADING_HWFN(cdev);
3424 		p_ptt = QED_LEADING_HWFN(cdev)->p_main_ptt;
3425 
3426 		/* Clear the PF's internal FID_enable in the PXP.
3427 		 * In CMT this should only be done for first hw-function, and
3428 		 * only after all transactions have stopped for all active
3429 		 * hw-functions.
3430 		 */
3431 		rc = qed_pglueb_set_pfid_enable(p_hwfn, p_ptt, false);
3432 		if (rc) {
3433 			DP_NOTICE(p_hwfn,
3434 				  "qed_pglueb_set_pfid_enable() failed. rc = %d.\n",
3435 				  rc);
3436 			rc2 = -EINVAL;
3437 		}
3438 	}
3439 
3440 	return rc2;
3441 }
3442 
qed_hw_stop_fastpath(struct qed_dev * cdev)3443 int qed_hw_stop_fastpath(struct qed_dev *cdev)
3444 {
3445 	int j;
3446 
3447 	for_each_hwfn(cdev, j) {
3448 		struct qed_hwfn *p_hwfn = &cdev->hwfns[j];
3449 		struct qed_ptt *p_ptt;
3450 
3451 		if (IS_VF(cdev)) {
3452 			qed_vf_pf_int_cleanup(p_hwfn);
3453 			continue;
3454 		}
3455 		p_ptt = qed_ptt_acquire(p_hwfn);
3456 		if (!p_ptt)
3457 			return -EAGAIN;
3458 
3459 		DP_VERBOSE(p_hwfn,
3460 			   NETIF_MSG_IFDOWN, "Shutting down the fastpath\n");
3461 
3462 		qed_wr(p_hwfn, p_ptt,
3463 		       NIG_REG_RX_LLH_BRB_GATE_DNTFWD_PERPF, 0x1);
3464 
3465 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_TCP, 0x0);
3466 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_UDP, 0x0);
3467 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_FCOE, 0x0);
3468 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_ROCE, 0x0);
3469 		qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_OPENFLOW, 0x0);
3470 
3471 		qed_int_igu_init_pure_rt(p_hwfn, p_ptt, false, false);
3472 
3473 		/* Need to wait 1ms to guarantee SBs are cleared */
3474 		usleep_range(1000, 2000);
3475 		qed_ptt_release(p_hwfn, p_ptt);
3476 	}
3477 
3478 	return 0;
3479 }
3480 
qed_hw_start_fastpath(struct qed_hwfn * p_hwfn)3481 int qed_hw_start_fastpath(struct qed_hwfn *p_hwfn)
3482 {
3483 	struct qed_ptt *p_ptt;
3484 
3485 	if (IS_VF(p_hwfn->cdev))
3486 		return 0;
3487 
3488 	p_ptt = qed_ptt_acquire(p_hwfn);
3489 	if (!p_ptt)
3490 		return -EAGAIN;
3491 
3492 	if (p_hwfn->p_rdma_info &&
3493 	    p_hwfn->p_rdma_info->active && p_hwfn->b_rdma_enabled_in_prs)
3494 		qed_wr(p_hwfn, p_ptt, p_hwfn->rdma_prs_search_reg, 0x1);
3495 
3496 	/* Re-open incoming traffic */
3497 	qed_wr(p_hwfn, p_ptt, NIG_REG_RX_LLH_BRB_GATE_DNTFWD_PERPF, 0x0);
3498 	qed_ptt_release(p_hwfn, p_ptt);
3499 
3500 	return 0;
3501 }
3502 
3503 /* Free hwfn memory and resources acquired in hw_hwfn_prepare */
qed_hw_hwfn_free(struct qed_hwfn * p_hwfn)3504 static void qed_hw_hwfn_free(struct qed_hwfn *p_hwfn)
3505 {
3506 	qed_ptt_pool_free(p_hwfn);
3507 	kfree(p_hwfn->hw_info.p_igu_info);
3508 	p_hwfn->hw_info.p_igu_info = NULL;
3509 }
3510 
3511 /* Setup bar access */
qed_hw_hwfn_prepare(struct qed_hwfn * p_hwfn)3512 static void qed_hw_hwfn_prepare(struct qed_hwfn *p_hwfn)
3513 {
3514 	/* clear indirect access */
3515 	if (QED_IS_AH(p_hwfn->cdev)) {
3516 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3517 		       PGLUE_B_REG_PGL_ADDR_E8_F0_K2, 0);
3518 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3519 		       PGLUE_B_REG_PGL_ADDR_EC_F0_K2, 0);
3520 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3521 		       PGLUE_B_REG_PGL_ADDR_F0_F0_K2, 0);
3522 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3523 		       PGLUE_B_REG_PGL_ADDR_F4_F0_K2, 0);
3524 	} else {
3525 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3526 		       PGLUE_B_REG_PGL_ADDR_88_F0_BB, 0);
3527 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3528 		       PGLUE_B_REG_PGL_ADDR_8C_F0_BB, 0);
3529 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3530 		       PGLUE_B_REG_PGL_ADDR_90_F0_BB, 0);
3531 		qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3532 		       PGLUE_B_REG_PGL_ADDR_94_F0_BB, 0);
3533 	}
3534 
3535 	/* Clean previous pglue_b errors if such exist */
3536 	qed_pglueb_clear_err(p_hwfn, p_hwfn->p_main_ptt);
3537 
3538 	/* enable internal target-read */
3539 	qed_wr(p_hwfn, p_hwfn->p_main_ptt,
3540 	       PGLUE_B_REG_INTERNAL_PFID_ENABLE_TARGET_READ, 1);
3541 }
3542 
get_function_id(struct qed_hwfn * p_hwfn)3543 static void get_function_id(struct qed_hwfn *p_hwfn)
3544 {
3545 	/* ME Register */
3546 	p_hwfn->hw_info.opaque_fid = (u16)REG_RD(p_hwfn,
3547 						 PXP_PF_ME_OPAQUE_ADDR);
3548 
3549 	p_hwfn->hw_info.concrete_fid = REG_RD(p_hwfn, PXP_PF_ME_CONCRETE_ADDR);
3550 
3551 	p_hwfn->abs_pf_id = (p_hwfn->hw_info.concrete_fid >> 16) & 0xf;
3552 	p_hwfn->rel_pf_id = GET_FIELD(p_hwfn->hw_info.concrete_fid,
3553 				      PXP_CONCRETE_FID_PFID);
3554 	p_hwfn->port_id = GET_FIELD(p_hwfn->hw_info.concrete_fid,
3555 				    PXP_CONCRETE_FID_PORT);
3556 
3557 	DP_VERBOSE(p_hwfn, NETIF_MSG_PROBE,
3558 		   "Read ME register: Concrete 0x%08x Opaque 0x%04x\n",
3559 		   p_hwfn->hw_info.concrete_fid, p_hwfn->hw_info.opaque_fid);
3560 }
3561 
qed_hw_set_feat(struct qed_hwfn * p_hwfn)3562 static void qed_hw_set_feat(struct qed_hwfn *p_hwfn)
3563 {
3564 	u32 *feat_num = p_hwfn->hw_info.feat_num;
3565 	struct qed_sb_cnt_info sb_cnt;
3566 	u32 non_l2_sbs = 0;
3567 
3568 	memset(&sb_cnt, 0, sizeof(sb_cnt));
3569 	qed_int_get_num_sbs(p_hwfn, &sb_cnt);
3570 
3571 	if (IS_ENABLED(CONFIG_QED_RDMA) &&
3572 	    QED_IS_RDMA_PERSONALITY(p_hwfn)) {
3573 		/* Roce CNQ each requires: 1 status block + 1 CNQ. We divide
3574 		 * the status blocks equally between L2 / RoCE but with
3575 		 * consideration as to how many l2 queues / cnqs we have.
3576 		 */
3577 		feat_num[QED_RDMA_CNQ] =
3578 			min_t(u32, sb_cnt.cnt / 2,
3579 			      RESC_NUM(p_hwfn, QED_RDMA_CNQ_RAM));
3580 
3581 		non_l2_sbs = feat_num[QED_RDMA_CNQ];
3582 	}
3583 	if (QED_IS_L2_PERSONALITY(p_hwfn)) {
3584 		/* Start by allocating VF queues, then PF's */
3585 		feat_num[QED_VF_L2_QUE] = min_t(u32,
3586 						RESC_NUM(p_hwfn, QED_L2_QUEUE),
3587 						sb_cnt.iov_cnt);
3588 		feat_num[QED_PF_L2_QUE] = min_t(u32,
3589 						sb_cnt.cnt - non_l2_sbs,
3590 						RESC_NUM(p_hwfn,
3591 							 QED_L2_QUEUE) -
3592 						FEAT_NUM(p_hwfn,
3593 							 QED_VF_L2_QUE));
3594 	}
3595 
3596 	if (QED_IS_FCOE_PERSONALITY(p_hwfn))
3597 		feat_num[QED_FCOE_CQ] =  min_t(u32, sb_cnt.cnt,
3598 					       RESC_NUM(p_hwfn,
3599 							QED_CMDQS_CQS));
3600 
3601 	if (QED_IS_ISCSI_PERSONALITY(p_hwfn))
3602 		feat_num[QED_ISCSI_CQ] = min_t(u32, sb_cnt.cnt,
3603 					       RESC_NUM(p_hwfn,
3604 							QED_CMDQS_CQS));
3605 
3606 	if (QED_IS_NVMETCP_PERSONALITY(p_hwfn))
3607 		feat_num[QED_NVMETCP_CQ] = min_t(u32, sb_cnt.cnt,
3608 						 RESC_NUM(p_hwfn,
3609 							  QED_CMDQS_CQS));
3610 
3611 	DP_VERBOSE(p_hwfn,
3612 		   NETIF_MSG_PROBE,
3613 		   "#PF_L2_QUEUES=%d VF_L2_QUEUES=%d #ROCE_CNQ=%d FCOE_CQ=%d ISCSI_CQ=%d NVMETCP_CQ=%d #SBS=%d\n",
3614 		   (int)FEAT_NUM(p_hwfn, QED_PF_L2_QUE),
3615 		   (int)FEAT_NUM(p_hwfn, QED_VF_L2_QUE),
3616 		   (int)FEAT_NUM(p_hwfn, QED_RDMA_CNQ),
3617 		   (int)FEAT_NUM(p_hwfn, QED_FCOE_CQ),
3618 		   (int)FEAT_NUM(p_hwfn, QED_ISCSI_CQ),
3619 		   (int)FEAT_NUM(p_hwfn, QED_NVMETCP_CQ),
3620 		   (int)sb_cnt.cnt);
3621 }
3622 
qed_hw_get_resc_name(enum qed_resources res_id)3623 const char *qed_hw_get_resc_name(enum qed_resources res_id)
3624 {
3625 	switch (res_id) {
3626 	case QED_L2_QUEUE:
3627 		return "L2_QUEUE";
3628 	case QED_VPORT:
3629 		return "VPORT";
3630 	case QED_RSS_ENG:
3631 		return "RSS_ENG";
3632 	case QED_PQ:
3633 		return "PQ";
3634 	case QED_RL:
3635 		return "RL";
3636 	case QED_MAC:
3637 		return "MAC";
3638 	case QED_VLAN:
3639 		return "VLAN";
3640 	case QED_RDMA_CNQ_RAM:
3641 		return "RDMA_CNQ_RAM";
3642 	case QED_ILT:
3643 		return "ILT";
3644 	case QED_LL2_RAM_QUEUE:
3645 		return "LL2_RAM_QUEUE";
3646 	case QED_LL2_CTX_QUEUE:
3647 		return "LL2_CTX_QUEUE";
3648 	case QED_CMDQS_CQS:
3649 		return "CMDQS_CQS";
3650 	case QED_RDMA_STATS_QUEUE:
3651 		return "RDMA_STATS_QUEUE";
3652 	case QED_BDQ:
3653 		return "BDQ";
3654 	case QED_SB:
3655 		return "SB";
3656 	default:
3657 		return "UNKNOWN_RESOURCE";
3658 	}
3659 }
3660 
3661 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)3662 __qed_hw_set_soft_resc_size(struct qed_hwfn *p_hwfn,
3663 			    struct qed_ptt *p_ptt,
3664 			    enum qed_resources res_id,
3665 			    u32 resc_max_val, u32 *p_mcp_resp)
3666 {
3667 	int rc;
3668 
3669 	rc = qed_mcp_set_resc_max_val(p_hwfn, p_ptt, res_id,
3670 				      resc_max_val, p_mcp_resp);
3671 	if (rc) {
3672 		DP_NOTICE(p_hwfn,
3673 			  "MFW response failure for a max value setting of resource %d [%s]\n",
3674 			  res_id, qed_hw_get_resc_name(res_id));
3675 		return rc;
3676 	}
3677 
3678 	if (*p_mcp_resp != FW_MSG_CODE_RESOURCE_ALLOC_OK)
3679 		DP_INFO(p_hwfn,
3680 			"Failed to set the max value of resource %d [%s]. mcp_resp = 0x%08x.\n",
3681 			res_id, qed_hw_get_resc_name(res_id), *p_mcp_resp);
3682 
3683 	return 0;
3684 }
3685 
3686 static u32 qed_hsi_def_val[][MAX_CHIP_IDS] = {
3687 	{MAX_NUM_VFS_BB, MAX_NUM_VFS_K2},
3688 	{MAX_NUM_L2_QUEUES_BB, MAX_NUM_L2_QUEUES_K2},
3689 	{MAX_NUM_PORTS_BB, MAX_NUM_PORTS_K2},
3690 	{MAX_SB_PER_PATH_BB, MAX_SB_PER_PATH_K2,},
3691 	{MAX_NUM_PFS_BB, MAX_NUM_PFS_K2},
3692 	{MAX_NUM_VPORTS_BB, MAX_NUM_VPORTS_K2},
3693 	{ETH_RSS_ENGINE_NUM_BB, ETH_RSS_ENGINE_NUM_K2},
3694 	{MAX_QM_TX_QUEUES_BB, MAX_QM_TX_QUEUES_K2},
3695 	{PXP_NUM_ILT_RECORDS_BB, PXP_NUM_ILT_RECORDS_K2},
3696 	{RDMA_NUM_STATISTIC_COUNTERS_BB, RDMA_NUM_STATISTIC_COUNTERS_K2},
3697 	{MAX_QM_GLOBAL_RLS, MAX_QM_GLOBAL_RLS},
3698 	{PBF_MAX_CMD_LINES, PBF_MAX_CMD_LINES},
3699 	{BTB_MAX_BLOCKS_BB, BTB_MAX_BLOCKS_K2},
3700 };
3701 
qed_get_hsi_def_val(struct qed_dev * cdev,enum qed_hsi_def_type type)3702 u32 qed_get_hsi_def_val(struct qed_dev *cdev, enum qed_hsi_def_type type)
3703 {
3704 	enum chip_ids chip_id = QED_IS_BB(cdev) ? CHIP_BB : CHIP_K2;
3705 
3706 	if (type >= QED_NUM_HSI_DEFS) {
3707 		DP_ERR(cdev, "Unexpected HSI definition type [%d]\n", type);
3708 		return 0;
3709 	}
3710 
3711 	return qed_hsi_def_val[type][chip_id];
3712 }
3713 
3714 static int
qed_hw_set_soft_resc_size(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)3715 qed_hw_set_soft_resc_size(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
3716 {
3717 	u32 resc_max_val, mcp_resp;
3718 	u8 res_id;
3719 	int rc;
3720 
3721 	for (res_id = 0; res_id < QED_MAX_RESC; res_id++) {
3722 		switch (res_id) {
3723 		case QED_LL2_RAM_QUEUE:
3724 			resc_max_val = MAX_NUM_LL2_RX_RAM_QUEUES;
3725 			break;
3726 		case QED_LL2_CTX_QUEUE:
3727 			resc_max_val = MAX_NUM_LL2_RX_CTX_QUEUES;
3728 			break;
3729 		case QED_RDMA_CNQ_RAM:
3730 			/* No need for a case for QED_CMDQS_CQS since
3731 			 * CNQ/CMDQS are the same resource.
3732 			 */
3733 			resc_max_val = NUM_OF_GLOBAL_QUEUES;
3734 			break;
3735 		case QED_RDMA_STATS_QUEUE:
3736 			resc_max_val =
3737 			    NUM_OF_RDMA_STATISTIC_COUNTERS(p_hwfn->cdev);
3738 			break;
3739 		case QED_BDQ:
3740 			resc_max_val = BDQ_NUM_RESOURCES;
3741 			break;
3742 		default:
3743 			continue;
3744 		}
3745 
3746 		rc = __qed_hw_set_soft_resc_size(p_hwfn, p_ptt, res_id,
3747 						 resc_max_val, &mcp_resp);
3748 		if (rc)
3749 			return rc;
3750 
3751 		/* There's no point to continue to the next resource if the
3752 		 * command is not supported by the MFW.
3753 		 * We do continue if the command is supported but the resource
3754 		 * is unknown to the MFW. Such a resource will be later
3755 		 * configured with the default allocation values.
3756 		 */
3757 		if (mcp_resp == FW_MSG_CODE_UNSUPPORTED)
3758 			return -EINVAL;
3759 	}
3760 
3761 	return 0;
3762 }
3763 
3764 static
qed_hw_get_dflt_resc(struct qed_hwfn * p_hwfn,enum qed_resources res_id,u32 * p_resc_num,u32 * p_resc_start)3765 int qed_hw_get_dflt_resc(struct qed_hwfn *p_hwfn,
3766 			 enum qed_resources res_id,
3767 			 u32 *p_resc_num, u32 *p_resc_start)
3768 {
3769 	u8 num_funcs = p_hwfn->num_funcs_on_engine;
3770 	struct qed_dev *cdev = p_hwfn->cdev;
3771 
3772 	switch (res_id) {
3773 	case QED_L2_QUEUE:
3774 		*p_resc_num = NUM_OF_L2_QUEUES(cdev) / num_funcs;
3775 		break;
3776 	case QED_VPORT:
3777 		*p_resc_num = NUM_OF_VPORTS(cdev) / num_funcs;
3778 		break;
3779 	case QED_RSS_ENG:
3780 		*p_resc_num = NUM_OF_RSS_ENGINES(cdev) / num_funcs;
3781 		break;
3782 	case QED_PQ:
3783 		*p_resc_num = NUM_OF_QM_TX_QUEUES(cdev) / num_funcs;
3784 		*p_resc_num &= ~0x7;	/* The granularity of the PQs is 8 */
3785 		break;
3786 	case QED_RL:
3787 		*p_resc_num = NUM_OF_QM_GLOBAL_RLS(cdev) / num_funcs;
3788 		break;
3789 	case QED_MAC:
3790 	case QED_VLAN:
3791 		/* Each VFC resource can accommodate both a MAC and a VLAN */
3792 		*p_resc_num = ETH_NUM_MAC_FILTERS / num_funcs;
3793 		break;
3794 	case QED_ILT:
3795 		*p_resc_num = NUM_OF_PXP_ILT_RECORDS(cdev) / num_funcs;
3796 		break;
3797 	case QED_LL2_RAM_QUEUE:
3798 		*p_resc_num = MAX_NUM_LL2_RX_RAM_QUEUES / num_funcs;
3799 		break;
3800 	case QED_LL2_CTX_QUEUE:
3801 		*p_resc_num = MAX_NUM_LL2_RX_CTX_QUEUES / num_funcs;
3802 		break;
3803 	case QED_RDMA_CNQ_RAM:
3804 	case QED_CMDQS_CQS:
3805 		/* CNQ/CMDQS are the same resource */
3806 		*p_resc_num = NUM_OF_GLOBAL_QUEUES / num_funcs;
3807 		break;
3808 	case QED_RDMA_STATS_QUEUE:
3809 		*p_resc_num = NUM_OF_RDMA_STATISTIC_COUNTERS(cdev) / num_funcs;
3810 		break;
3811 	case QED_BDQ:
3812 		if (p_hwfn->hw_info.personality != QED_PCI_ISCSI &&
3813 		    p_hwfn->hw_info.personality != QED_PCI_FCOE &&
3814 			p_hwfn->hw_info.personality != QED_PCI_NVMETCP)
3815 			*p_resc_num = 0;
3816 		else
3817 			*p_resc_num = 1;
3818 		break;
3819 	case QED_SB:
3820 		/* Since we want its value to reflect whether MFW supports
3821 		 * the new scheme, have a default of 0.
3822 		 */
3823 		*p_resc_num = 0;
3824 		break;
3825 	default:
3826 		return -EINVAL;
3827 	}
3828 
3829 	switch (res_id) {
3830 	case QED_BDQ:
3831 		if (!*p_resc_num)
3832 			*p_resc_start = 0;
3833 		else if (p_hwfn->cdev->num_ports_in_engine == 4)
3834 			*p_resc_start = p_hwfn->port_id;
3835 		else if (p_hwfn->hw_info.personality == QED_PCI_ISCSI ||
3836 			 p_hwfn->hw_info.personality == QED_PCI_NVMETCP)
3837 			*p_resc_start = p_hwfn->port_id;
3838 		else if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
3839 			*p_resc_start = p_hwfn->port_id + 2;
3840 		break;
3841 	default:
3842 		*p_resc_start = *p_resc_num * p_hwfn->enabled_func_idx;
3843 		break;
3844 	}
3845 
3846 	return 0;
3847 }
3848 
__qed_hw_set_resc_info(struct qed_hwfn * p_hwfn,enum qed_resources res_id)3849 static int __qed_hw_set_resc_info(struct qed_hwfn *p_hwfn,
3850 				  enum qed_resources res_id)
3851 {
3852 	u32 dflt_resc_num = 0, dflt_resc_start = 0;
3853 	u32 mcp_resp, *p_resc_num, *p_resc_start;
3854 	int rc;
3855 
3856 	p_resc_num = &RESC_NUM(p_hwfn, res_id);
3857 	p_resc_start = &RESC_START(p_hwfn, res_id);
3858 
3859 	rc = qed_hw_get_dflt_resc(p_hwfn, res_id, &dflt_resc_num,
3860 				  &dflt_resc_start);
3861 	if (rc) {
3862 		DP_ERR(p_hwfn,
3863 		       "Failed to get default amount for resource %d [%s]\n",
3864 		       res_id, qed_hw_get_resc_name(res_id));
3865 		return rc;
3866 	}
3867 
3868 	rc = qed_mcp_get_resc_info(p_hwfn, p_hwfn->p_main_ptt, res_id,
3869 				   &mcp_resp, p_resc_num, p_resc_start);
3870 	if (rc) {
3871 		DP_NOTICE(p_hwfn,
3872 			  "MFW response failure for an allocation request for resource %d [%s]\n",
3873 			  res_id, qed_hw_get_resc_name(res_id));
3874 		return rc;
3875 	}
3876 
3877 	/* Default driver values are applied in the following cases:
3878 	 * - The resource allocation MB command is not supported by the MFW
3879 	 * - There is an internal error in the MFW while processing the request
3880 	 * - The resource ID is unknown to the MFW
3881 	 */
3882 	if (mcp_resp != FW_MSG_CODE_RESOURCE_ALLOC_OK) {
3883 		DP_INFO(p_hwfn,
3884 			"Failed to receive allocation info for resource %d [%s]. mcp_resp = 0x%x. Applying default values [%d,%d].\n",
3885 			res_id,
3886 			qed_hw_get_resc_name(res_id),
3887 			mcp_resp, dflt_resc_num, dflt_resc_start);
3888 		*p_resc_num = dflt_resc_num;
3889 		*p_resc_start = dflt_resc_start;
3890 		goto out;
3891 	}
3892 
3893 out:
3894 	/* PQs have to divide by 8 [that's the HW granularity].
3895 	 * Reduce number so it would fit.
3896 	 */
3897 	if ((res_id == QED_PQ) && ((*p_resc_num % 8) || (*p_resc_start % 8))) {
3898 		DP_INFO(p_hwfn,
3899 			"PQs need to align by 8; Number %08x --> %08x, Start %08x --> %08x\n",
3900 			*p_resc_num,
3901 			(*p_resc_num) & ~0x7,
3902 			*p_resc_start, (*p_resc_start) & ~0x7);
3903 		*p_resc_num &= ~0x7;
3904 		*p_resc_start &= ~0x7;
3905 	}
3906 
3907 	return 0;
3908 }
3909 
qed_hw_set_resc_info(struct qed_hwfn * p_hwfn)3910 static int qed_hw_set_resc_info(struct qed_hwfn *p_hwfn)
3911 {
3912 	int rc;
3913 	u8 res_id;
3914 
3915 	for (res_id = 0; res_id < QED_MAX_RESC; res_id++) {
3916 		rc = __qed_hw_set_resc_info(p_hwfn, res_id);
3917 		if (rc)
3918 			return rc;
3919 	}
3920 
3921 	return 0;
3922 }
3923 
qed_hw_get_ppfid_bitmap(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)3924 static int qed_hw_get_ppfid_bitmap(struct qed_hwfn *p_hwfn,
3925 				   struct qed_ptt *p_ptt)
3926 {
3927 	struct qed_dev *cdev = p_hwfn->cdev;
3928 	u8 native_ppfid_idx;
3929 	int rc;
3930 
3931 	/* Calculation of BB/AH is different for native_ppfid_idx */
3932 	if (QED_IS_BB(cdev))
3933 		native_ppfid_idx = p_hwfn->rel_pf_id;
3934 	else
3935 		native_ppfid_idx = p_hwfn->rel_pf_id /
3936 		    cdev->num_ports_in_engine;
3937 
3938 	rc = qed_mcp_get_ppfid_bitmap(p_hwfn, p_ptt);
3939 	if (rc != 0 && rc != -EOPNOTSUPP)
3940 		return rc;
3941 	else if (rc == -EOPNOTSUPP)
3942 		cdev->ppfid_bitmap = 0x1 << native_ppfid_idx;
3943 
3944 	if (!(cdev->ppfid_bitmap & (0x1 << native_ppfid_idx))) {
3945 		DP_INFO(p_hwfn,
3946 			"Fix the PPFID bitmap to include the native PPFID [native_ppfid_idx %hhd, orig_bitmap 0x%hhx]\n",
3947 			native_ppfid_idx, cdev->ppfid_bitmap);
3948 		cdev->ppfid_bitmap = 0x1 << native_ppfid_idx;
3949 	}
3950 
3951 	return 0;
3952 }
3953 
qed_hw_get_resc(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)3954 static int qed_hw_get_resc(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
3955 {
3956 	struct qed_resc_unlock_params resc_unlock_params;
3957 	struct qed_resc_lock_params resc_lock_params;
3958 	bool b_ah = QED_IS_AH(p_hwfn->cdev);
3959 	u8 res_id;
3960 	int rc;
3961 
3962 	/* Setting the max values of the soft resources and the following
3963 	 * resources allocation queries should be atomic. Since several PFs can
3964 	 * run in parallel - a resource lock is needed.
3965 	 * If either the resource lock or resource set value commands are not
3966 	 * supported - skip the max values setting, release the lock if
3967 	 * needed, and proceed to the queries. Other failures, including a
3968 	 * failure to acquire the lock, will cause this function to fail.
3969 	 */
3970 	qed_mcp_resc_lock_default_init(&resc_lock_params, &resc_unlock_params,
3971 				       QED_RESC_LOCK_RESC_ALLOC, false);
3972 
3973 	rc = qed_mcp_resc_lock(p_hwfn, p_ptt, &resc_lock_params);
3974 	if (rc && rc != -EINVAL) {
3975 		return rc;
3976 	} else if (rc == -EINVAL) {
3977 		DP_INFO(p_hwfn,
3978 			"Skip the max values setting of the soft resources since the resource lock is not supported by the MFW\n");
3979 	} else if (!resc_lock_params.b_granted) {
3980 		DP_NOTICE(p_hwfn,
3981 			  "Failed to acquire the resource lock for the resource allocation commands\n");
3982 		return -EBUSY;
3983 	} else {
3984 		rc = qed_hw_set_soft_resc_size(p_hwfn, p_ptt);
3985 		if (rc && rc != -EINVAL) {
3986 			DP_NOTICE(p_hwfn,
3987 				  "Failed to set the max values of the soft resources\n");
3988 			goto unlock_and_exit;
3989 		} else if (rc == -EINVAL) {
3990 			DP_INFO(p_hwfn,
3991 				"Skip the max values setting of the soft resources since it is not supported by the MFW\n");
3992 			rc = qed_mcp_resc_unlock(p_hwfn, p_ptt,
3993 						 &resc_unlock_params);
3994 			if (rc)
3995 				DP_INFO(p_hwfn,
3996 					"Failed to release the resource lock for the resource allocation commands\n");
3997 		}
3998 	}
3999 
4000 	rc = qed_hw_set_resc_info(p_hwfn);
4001 	if (rc)
4002 		goto unlock_and_exit;
4003 
4004 	if (resc_lock_params.b_granted && !resc_unlock_params.b_released) {
4005 		rc = qed_mcp_resc_unlock(p_hwfn, p_ptt, &resc_unlock_params);
4006 		if (rc)
4007 			DP_INFO(p_hwfn,
4008 				"Failed to release the resource lock for the resource allocation commands\n");
4009 	}
4010 
4011 	/* PPFID bitmap */
4012 	if (IS_LEAD_HWFN(p_hwfn)) {
4013 		rc = qed_hw_get_ppfid_bitmap(p_hwfn, p_ptt);
4014 		if (rc)
4015 			return rc;
4016 	}
4017 
4018 	/* Sanity for ILT */
4019 	if ((b_ah && (RESC_END(p_hwfn, QED_ILT) > PXP_NUM_ILT_RECORDS_K2)) ||
4020 	    (!b_ah && (RESC_END(p_hwfn, QED_ILT) > PXP_NUM_ILT_RECORDS_BB))) {
4021 		DP_NOTICE(p_hwfn, "Can't assign ILT pages [%08x,...,%08x]\n",
4022 			  RESC_START(p_hwfn, QED_ILT),
4023 			  RESC_END(p_hwfn, QED_ILT) - 1);
4024 		return -EINVAL;
4025 	}
4026 
4027 	/* This will also learn the number of SBs from MFW */
4028 	if (qed_int_igu_reset_cam(p_hwfn, p_ptt))
4029 		return -EINVAL;
4030 
4031 	qed_hw_set_feat(p_hwfn);
4032 
4033 	for (res_id = 0; res_id < QED_MAX_RESC; res_id++)
4034 		DP_VERBOSE(p_hwfn, NETIF_MSG_PROBE, "%s = %d start = %d\n",
4035 			   qed_hw_get_resc_name(res_id),
4036 			   RESC_NUM(p_hwfn, res_id),
4037 			   RESC_START(p_hwfn, res_id));
4038 
4039 	return 0;
4040 
4041 unlock_and_exit:
4042 	if (resc_lock_params.b_granted && !resc_unlock_params.b_released)
4043 		qed_mcp_resc_unlock(p_hwfn, p_ptt, &resc_unlock_params);
4044 	return rc;
4045 }
4046 
qed_hw_get_nvm_info(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)4047 static int qed_hw_get_nvm_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
4048 {
4049 	u32 port_cfg_addr, link_temp, nvm_cfg_addr, device_capabilities, fld;
4050 	u32 nvm_cfg1_offset, mf_mode, addr, generic_cont0, core_cfg;
4051 	struct qed_mcp_link_speed_params *ext_speed;
4052 	struct qed_mcp_link_capabilities *p_caps;
4053 	struct qed_mcp_link_params *link;
4054 	int i;
4055 
4056 	/* Read global nvm_cfg address */
4057 	nvm_cfg_addr = qed_rd(p_hwfn, p_ptt, MISC_REG_GEN_PURP_CR0);
4058 
4059 	/* Verify MCP has initialized it */
4060 	if (!nvm_cfg_addr) {
4061 		DP_NOTICE(p_hwfn, "Shared memory not initialized\n");
4062 		return -EINVAL;
4063 	}
4064 
4065 	/* Read nvm_cfg1  (Notice this is just offset, and not offsize (TBD) */
4066 	nvm_cfg1_offset = qed_rd(p_hwfn, p_ptt, nvm_cfg_addr + 4);
4067 
4068 	addr = MCP_REG_SCRATCH + nvm_cfg1_offset +
4069 	       offsetof(struct nvm_cfg1, glob) +
4070 	       offsetof(struct nvm_cfg1_glob, core_cfg);
4071 
4072 	core_cfg = qed_rd(p_hwfn, p_ptt, addr);
4073 
4074 	switch ((core_cfg & NVM_CFG1_GLOB_NETWORK_PORT_MODE_MASK) >>
4075 		NVM_CFG1_GLOB_NETWORK_PORT_MODE_OFFSET) {
4076 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_BB_2X40G:
4077 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_2X50G:
4078 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_BB_1X100G:
4079 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_4X10G_F:
4080 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_BB_4X10G_E:
4081 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_BB_4X20G:
4082 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_1X40G:
4083 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_2X25G:
4084 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_2X10G:
4085 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_1X25G:
4086 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_4X25G:
4087 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_AHP_2X50G_R1:
4088 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_AHP_4X50G_R1:
4089 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_AHP_1X100G_R2:
4090 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_AHP_2X100G_R2:
4091 	case NVM_CFG1_GLOB_NETWORK_PORT_MODE_AHP_1X100G_R4:
4092 		break;
4093 	default:
4094 		DP_NOTICE(p_hwfn, "Unknown port mode in 0x%08x\n", core_cfg);
4095 		break;
4096 	}
4097 
4098 	/* Read default link configuration */
4099 	link = &p_hwfn->mcp_info->link_input;
4100 	p_caps = &p_hwfn->mcp_info->link_capabilities;
4101 	port_cfg_addr = MCP_REG_SCRATCH + nvm_cfg1_offset +
4102 			offsetof(struct nvm_cfg1, port[MFW_PORT(p_hwfn)]);
4103 	link_temp = qed_rd(p_hwfn, p_ptt,
4104 			   port_cfg_addr +
4105 			   offsetof(struct nvm_cfg1_port, speed_cap_mask));
4106 	link_temp &= NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_MASK;
4107 	link->speed.advertised_speeds = link_temp;
4108 
4109 	p_caps->speed_capabilities = link->speed.advertised_speeds;
4110 
4111 	link_temp = qed_rd(p_hwfn, p_ptt,
4112 			   port_cfg_addr +
4113 			   offsetof(struct nvm_cfg1_port, link_settings));
4114 	switch ((link_temp & NVM_CFG1_PORT_DRV_LINK_SPEED_MASK) >>
4115 		NVM_CFG1_PORT_DRV_LINK_SPEED_OFFSET) {
4116 	case NVM_CFG1_PORT_DRV_LINK_SPEED_AUTONEG:
4117 		link->speed.autoneg = true;
4118 		break;
4119 	case NVM_CFG1_PORT_DRV_LINK_SPEED_1G:
4120 		link->speed.forced_speed = 1000;
4121 		break;
4122 	case NVM_CFG1_PORT_DRV_LINK_SPEED_10G:
4123 		link->speed.forced_speed = 10000;
4124 		break;
4125 	case NVM_CFG1_PORT_DRV_LINK_SPEED_20G:
4126 		link->speed.forced_speed = 20000;
4127 		break;
4128 	case NVM_CFG1_PORT_DRV_LINK_SPEED_25G:
4129 		link->speed.forced_speed = 25000;
4130 		break;
4131 	case NVM_CFG1_PORT_DRV_LINK_SPEED_40G:
4132 		link->speed.forced_speed = 40000;
4133 		break;
4134 	case NVM_CFG1_PORT_DRV_LINK_SPEED_50G:
4135 		link->speed.forced_speed = 50000;
4136 		break;
4137 	case NVM_CFG1_PORT_DRV_LINK_SPEED_BB_100G:
4138 		link->speed.forced_speed = 100000;
4139 		break;
4140 	default:
4141 		DP_NOTICE(p_hwfn, "Unknown Speed in 0x%08x\n", link_temp);
4142 	}
4143 
4144 	p_caps->default_speed_autoneg = link->speed.autoneg;
4145 
4146 	fld = GET_MFW_FIELD(link_temp, NVM_CFG1_PORT_DRV_FLOW_CONTROL);
4147 	link->pause.autoneg = !!(fld & NVM_CFG1_PORT_DRV_FLOW_CONTROL_AUTONEG);
4148 	link->pause.forced_rx = !!(fld & NVM_CFG1_PORT_DRV_FLOW_CONTROL_RX);
4149 	link->pause.forced_tx = !!(fld & NVM_CFG1_PORT_DRV_FLOW_CONTROL_TX);
4150 	link->loopback_mode = 0;
4151 
4152 	if (p_hwfn->mcp_info->capabilities &
4153 	    FW_MB_PARAM_FEATURE_SUPPORT_FEC_CONTROL) {
4154 		switch (GET_MFW_FIELD(link_temp,
4155 				      NVM_CFG1_PORT_FEC_FORCE_MODE)) {
4156 		case NVM_CFG1_PORT_FEC_FORCE_MODE_NONE:
4157 			p_caps->fec_default |= QED_FEC_MODE_NONE;
4158 			break;
4159 		case NVM_CFG1_PORT_FEC_FORCE_MODE_FIRECODE:
4160 			p_caps->fec_default |= QED_FEC_MODE_FIRECODE;
4161 			break;
4162 		case NVM_CFG1_PORT_FEC_FORCE_MODE_RS:
4163 			p_caps->fec_default |= QED_FEC_MODE_RS;
4164 			break;
4165 		case NVM_CFG1_PORT_FEC_FORCE_MODE_AUTO:
4166 			p_caps->fec_default |= QED_FEC_MODE_AUTO;
4167 			break;
4168 		default:
4169 			DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
4170 				   "unknown FEC mode in 0x%08x\n", link_temp);
4171 		}
4172 	} else {
4173 		p_caps->fec_default = QED_FEC_MODE_UNSUPPORTED;
4174 	}
4175 
4176 	link->fec = p_caps->fec_default;
4177 
4178 	if (p_hwfn->mcp_info->capabilities & FW_MB_PARAM_FEATURE_SUPPORT_EEE) {
4179 		link_temp = qed_rd(p_hwfn, p_ptt, port_cfg_addr +
4180 				   offsetof(struct nvm_cfg1_port, ext_phy));
4181 		link_temp &= NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_MASK;
4182 		link_temp >>= NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_OFFSET;
4183 		p_caps->default_eee = QED_MCP_EEE_ENABLED;
4184 		link->eee.enable = true;
4185 		switch (link_temp) {
4186 		case NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_DISABLED:
4187 			p_caps->default_eee = QED_MCP_EEE_DISABLED;
4188 			link->eee.enable = false;
4189 			break;
4190 		case NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_BALANCED:
4191 			p_caps->eee_lpi_timer = EEE_TX_TIMER_USEC_BALANCED_TIME;
4192 			break;
4193 		case NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_AGGRESSIVE:
4194 			p_caps->eee_lpi_timer =
4195 			    EEE_TX_TIMER_USEC_AGGRESSIVE_TIME;
4196 			break;
4197 		case NVM_CFG1_PORT_EEE_POWER_SAVING_MODE_LOW_LATENCY:
4198 			p_caps->eee_lpi_timer = EEE_TX_TIMER_USEC_LATENCY_TIME;
4199 			break;
4200 		}
4201 
4202 		link->eee.tx_lpi_timer = p_caps->eee_lpi_timer;
4203 		link->eee.tx_lpi_enable = link->eee.enable;
4204 		link->eee.adv_caps = QED_EEE_1G_ADV | QED_EEE_10G_ADV;
4205 	} else {
4206 		p_caps->default_eee = QED_MCP_EEE_UNSUPPORTED;
4207 	}
4208 
4209 	if (p_hwfn->mcp_info->capabilities &
4210 	    FW_MB_PARAM_FEATURE_SUPPORT_EXT_SPEED_FEC_CONTROL) {
4211 		ext_speed = &link->ext_speed;
4212 
4213 		link_temp = qed_rd(p_hwfn, p_ptt,
4214 				   port_cfg_addr +
4215 				   offsetof(struct nvm_cfg1_port,
4216 					    extended_speed));
4217 
4218 		fld = GET_MFW_FIELD(link_temp, NVM_CFG1_PORT_EXTENDED_SPEED);
4219 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_AN)
4220 			ext_speed->autoneg = true;
4221 
4222 		ext_speed->forced_speed = 0;
4223 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_1G)
4224 			ext_speed->forced_speed |= QED_EXT_SPEED_1G;
4225 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_10G)
4226 			ext_speed->forced_speed |= QED_EXT_SPEED_10G;
4227 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_20G)
4228 			ext_speed->forced_speed |= QED_EXT_SPEED_20G;
4229 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_25G)
4230 			ext_speed->forced_speed |= QED_EXT_SPEED_25G;
4231 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_40G)
4232 			ext_speed->forced_speed |= QED_EXT_SPEED_40G;
4233 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_50G_R)
4234 			ext_speed->forced_speed |= QED_EXT_SPEED_50G_R;
4235 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_50G_R2)
4236 			ext_speed->forced_speed |= QED_EXT_SPEED_50G_R2;
4237 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_100G_R2)
4238 			ext_speed->forced_speed |= QED_EXT_SPEED_100G_R2;
4239 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_100G_R4)
4240 			ext_speed->forced_speed |= QED_EXT_SPEED_100G_R4;
4241 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_EXTND_SPD_100G_P4)
4242 			ext_speed->forced_speed |= QED_EXT_SPEED_100G_P4;
4243 
4244 		fld = GET_MFW_FIELD(link_temp,
4245 				    NVM_CFG1_PORT_EXTENDED_SPEED_CAP);
4246 
4247 		ext_speed->advertised_speeds = 0;
4248 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_RESERVED)
4249 			ext_speed->advertised_speeds |= QED_EXT_SPEED_MASK_RES;
4250 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_1G)
4251 			ext_speed->advertised_speeds |= QED_EXT_SPEED_MASK_1G;
4252 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_10G)
4253 			ext_speed->advertised_speeds |= QED_EXT_SPEED_MASK_10G;
4254 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_20G)
4255 			ext_speed->advertised_speeds |= QED_EXT_SPEED_MASK_20G;
4256 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_25G)
4257 			ext_speed->advertised_speeds |= QED_EXT_SPEED_MASK_25G;
4258 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_40G)
4259 			ext_speed->advertised_speeds |= QED_EXT_SPEED_MASK_40G;
4260 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_50G_R)
4261 			ext_speed->advertised_speeds |=
4262 				QED_EXT_SPEED_MASK_50G_R;
4263 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_50G_R2)
4264 			ext_speed->advertised_speeds |=
4265 				QED_EXT_SPEED_MASK_50G_R2;
4266 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_100G_R2)
4267 			ext_speed->advertised_speeds |=
4268 				QED_EXT_SPEED_MASK_100G_R2;
4269 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_100G_R4)
4270 			ext_speed->advertised_speeds |=
4271 				QED_EXT_SPEED_MASK_100G_R4;
4272 		if (fld & NVM_CFG1_PORT_EXTENDED_SPEED_CAP_EXTND_SPD_100G_P4)
4273 			ext_speed->advertised_speeds |=
4274 				QED_EXT_SPEED_MASK_100G_P4;
4275 
4276 		link_temp = qed_rd(p_hwfn, p_ptt,
4277 				   port_cfg_addr +
4278 				   offsetof(struct nvm_cfg1_port,
4279 					    extended_fec_mode));
4280 		link->ext_fec_mode = link_temp;
4281 
4282 		p_caps->default_ext_speed_caps = ext_speed->advertised_speeds;
4283 		p_caps->default_ext_speed = ext_speed->forced_speed;
4284 		p_caps->default_ext_autoneg = ext_speed->autoneg;
4285 		p_caps->default_ext_fec = link->ext_fec_mode;
4286 
4287 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
4288 			   "Read default extended link config: Speed 0x%08x, Adv. Speed 0x%08x, AN: 0x%02x, FEC: 0x%02x\n",
4289 			   ext_speed->forced_speed,
4290 			   ext_speed->advertised_speeds, ext_speed->autoneg,
4291 			   p_caps->default_ext_fec);
4292 	}
4293 
4294 	DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
4295 		   "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",
4296 		   link->speed.forced_speed, link->speed.advertised_speeds,
4297 		   link->speed.autoneg, link->pause.autoneg,
4298 		   p_caps->default_eee, p_caps->eee_lpi_timer,
4299 		   p_caps->fec_default);
4300 
4301 	if (IS_LEAD_HWFN(p_hwfn)) {
4302 		struct qed_dev *cdev = p_hwfn->cdev;
4303 
4304 		/* Read Multi-function information from shmem */
4305 		addr = MCP_REG_SCRATCH + nvm_cfg1_offset +
4306 		       offsetof(struct nvm_cfg1, glob) +
4307 		       offsetof(struct nvm_cfg1_glob, generic_cont0);
4308 
4309 		generic_cont0 = qed_rd(p_hwfn, p_ptt, addr);
4310 
4311 		mf_mode = (generic_cont0 & NVM_CFG1_GLOB_MF_MODE_MASK) >>
4312 			  NVM_CFG1_GLOB_MF_MODE_OFFSET;
4313 
4314 		switch (mf_mode) {
4315 		case NVM_CFG1_GLOB_MF_MODE_MF_ALLOWED:
4316 			cdev->mf_bits = BIT(QED_MF_OVLAN_CLSS);
4317 			break;
4318 		case NVM_CFG1_GLOB_MF_MODE_UFP:
4319 			cdev->mf_bits = BIT(QED_MF_OVLAN_CLSS) |
4320 					BIT(QED_MF_LLH_PROTO_CLSS) |
4321 					BIT(QED_MF_UFP_SPECIFIC) |
4322 					BIT(QED_MF_8021Q_TAGGING) |
4323 					BIT(QED_MF_DONT_ADD_VLAN0_TAG);
4324 			break;
4325 		case NVM_CFG1_GLOB_MF_MODE_BD:
4326 			cdev->mf_bits = BIT(QED_MF_OVLAN_CLSS) |
4327 					BIT(QED_MF_LLH_PROTO_CLSS) |
4328 					BIT(QED_MF_8021AD_TAGGING) |
4329 					BIT(QED_MF_DONT_ADD_VLAN0_TAG);
4330 			break;
4331 		case NVM_CFG1_GLOB_MF_MODE_NPAR1_0:
4332 			cdev->mf_bits = BIT(QED_MF_LLH_MAC_CLSS) |
4333 					BIT(QED_MF_LLH_PROTO_CLSS) |
4334 					BIT(QED_MF_LL2_NON_UNICAST) |
4335 					BIT(QED_MF_INTER_PF_SWITCH) |
4336 					BIT(QED_MF_DISABLE_ARFS);
4337 			break;
4338 		case NVM_CFG1_GLOB_MF_MODE_DEFAULT:
4339 			cdev->mf_bits = BIT(QED_MF_LLH_MAC_CLSS) |
4340 					BIT(QED_MF_LLH_PROTO_CLSS) |
4341 					BIT(QED_MF_LL2_NON_UNICAST);
4342 			if (QED_IS_BB(p_hwfn->cdev))
4343 				cdev->mf_bits |= BIT(QED_MF_NEED_DEF_PF);
4344 			break;
4345 		}
4346 
4347 		DP_INFO(p_hwfn, "Multi function mode is 0x%lx\n",
4348 			cdev->mf_bits);
4349 
4350 		/* In CMT the PF is unknown when the GFS block processes the
4351 		 * packet. Therefore cannot use searcher as it has a per PF
4352 		 * database, and thus ARFS must be disabled.
4353 		 *
4354 		 */
4355 		if (QED_IS_CMT(cdev))
4356 			cdev->mf_bits |= BIT(QED_MF_DISABLE_ARFS);
4357 	}
4358 
4359 	DP_INFO(p_hwfn, "Multi function mode is 0x%lx\n",
4360 		p_hwfn->cdev->mf_bits);
4361 
4362 	/* Read device capabilities information from shmem */
4363 	addr = MCP_REG_SCRATCH + nvm_cfg1_offset +
4364 		offsetof(struct nvm_cfg1, glob) +
4365 		offsetof(struct nvm_cfg1_glob, device_capabilities);
4366 
4367 	device_capabilities = qed_rd(p_hwfn, p_ptt, addr);
4368 	if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ETHERNET)
4369 		__set_bit(QED_DEV_CAP_ETH,
4370 			  &p_hwfn->hw_info.device_capabilities);
4371 	if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_FCOE)
4372 		__set_bit(QED_DEV_CAP_FCOE,
4373 			  &p_hwfn->hw_info.device_capabilities);
4374 	if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ISCSI)
4375 		__set_bit(QED_DEV_CAP_ISCSI,
4376 			  &p_hwfn->hw_info.device_capabilities);
4377 	if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ROCE)
4378 		__set_bit(QED_DEV_CAP_ROCE,
4379 			  &p_hwfn->hw_info.device_capabilities);
4380 
4381 	/* Read device serial number information from shmem */
4382 	addr = MCP_REG_SCRATCH + nvm_cfg1_offset +
4383 		offsetof(struct nvm_cfg1, glob) +
4384 		offsetof(struct nvm_cfg1_glob, serial_number);
4385 
4386 	for (i = 0; i < 4; i++)
4387 		p_hwfn->hw_info.part_num[i] = qed_rd(p_hwfn, p_ptt, addr + i * 4);
4388 
4389 	return qed_mcp_fill_shmem_func_info(p_hwfn, p_ptt);
4390 }
4391 
qed_get_num_funcs(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)4392 static void qed_get_num_funcs(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
4393 {
4394 	u8 num_funcs, enabled_func_idx = p_hwfn->rel_pf_id;
4395 	u32 reg_function_hide, tmp, eng_mask, low_pfs_mask;
4396 	struct qed_dev *cdev = p_hwfn->cdev;
4397 
4398 	num_funcs = QED_IS_AH(cdev) ? MAX_NUM_PFS_K2 : MAX_NUM_PFS_BB;
4399 
4400 	/* Bit 0 of MISCS_REG_FUNCTION_HIDE indicates whether the bypass values
4401 	 * in the other bits are selected.
4402 	 * Bits 1-15 are for functions 1-15, respectively, and their value is
4403 	 * '0' only for enabled functions (function 0 always exists and
4404 	 * enabled).
4405 	 * In case of CMT, only the "even" functions are enabled, and thus the
4406 	 * number of functions for both hwfns is learnt from the same bits.
4407 	 */
4408 	reg_function_hide = qed_rd(p_hwfn, p_ptt, MISCS_REG_FUNCTION_HIDE);
4409 
4410 	if (reg_function_hide & 0x1) {
4411 		if (QED_IS_BB(cdev)) {
4412 			if (QED_PATH_ID(p_hwfn) && cdev->num_hwfns == 1) {
4413 				num_funcs = 0;
4414 				eng_mask = 0xaaaa;
4415 			} else {
4416 				num_funcs = 1;
4417 				eng_mask = 0x5554;
4418 			}
4419 		} else {
4420 			num_funcs = 1;
4421 			eng_mask = 0xfffe;
4422 		}
4423 
4424 		/* Get the number of the enabled functions on the engine */
4425 		tmp = (reg_function_hide ^ 0xffffffff) & eng_mask;
4426 		while (tmp) {
4427 			if (tmp & 0x1)
4428 				num_funcs++;
4429 			tmp >>= 0x1;
4430 		}
4431 
4432 		/* Get the PF index within the enabled functions */
4433 		low_pfs_mask = (0x1 << p_hwfn->abs_pf_id) - 1;
4434 		tmp = reg_function_hide & eng_mask & low_pfs_mask;
4435 		while (tmp) {
4436 			if (tmp & 0x1)
4437 				enabled_func_idx--;
4438 			tmp >>= 0x1;
4439 		}
4440 	}
4441 
4442 	p_hwfn->num_funcs_on_engine = num_funcs;
4443 	p_hwfn->enabled_func_idx = enabled_func_idx;
4444 
4445 	DP_VERBOSE(p_hwfn,
4446 		   NETIF_MSG_PROBE,
4447 		   "PF [rel_id %d, abs_id %d] occupies index %d within the %d enabled functions on the engine\n",
4448 		   p_hwfn->rel_pf_id,
4449 		   p_hwfn->abs_pf_id,
4450 		   p_hwfn->enabled_func_idx, p_hwfn->num_funcs_on_engine);
4451 }
4452 
qed_hw_info_port_num(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)4453 static void qed_hw_info_port_num(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
4454 {
4455 	u32 addr, global_offsize, global_addr, port_mode;
4456 	struct qed_dev *cdev = p_hwfn->cdev;
4457 
4458 	/* In CMT there is always only one port */
4459 	if (cdev->num_hwfns > 1) {
4460 		cdev->num_ports_in_engine = 1;
4461 		cdev->num_ports = 1;
4462 		return;
4463 	}
4464 
4465 	/* Determine the number of ports per engine */
4466 	port_mode = qed_rd(p_hwfn, p_ptt, MISC_REG_PORT_MODE);
4467 	switch (port_mode) {
4468 	case 0x0:
4469 		cdev->num_ports_in_engine = 1;
4470 		break;
4471 	case 0x1:
4472 		cdev->num_ports_in_engine = 2;
4473 		break;
4474 	case 0x2:
4475 		cdev->num_ports_in_engine = 4;
4476 		break;
4477 	default:
4478 		DP_NOTICE(p_hwfn, "Unknown port mode 0x%08x\n", port_mode);
4479 		cdev->num_ports_in_engine = 1;	/* Default to something */
4480 		break;
4481 	}
4482 
4483 	/* Get the total number of ports of the device */
4484 	addr = SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->public_base,
4485 				    PUBLIC_GLOBAL);
4486 	global_offsize = qed_rd(p_hwfn, p_ptt, addr);
4487 	global_addr = SECTION_ADDR(global_offsize, 0);
4488 	addr = global_addr + offsetof(struct public_global, max_ports);
4489 	cdev->num_ports = (u8)qed_rd(p_hwfn, p_ptt, addr);
4490 }
4491 
qed_get_eee_caps(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)4492 static void qed_get_eee_caps(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
4493 {
4494 	struct qed_mcp_link_capabilities *p_caps;
4495 	u32 eee_status;
4496 
4497 	p_caps = &p_hwfn->mcp_info->link_capabilities;
4498 	if (p_caps->default_eee == QED_MCP_EEE_UNSUPPORTED)
4499 		return;
4500 
4501 	p_caps->eee_speed_caps = 0;
4502 	eee_status = qed_rd(p_hwfn, p_ptt, p_hwfn->mcp_info->port_addr +
4503 			    offsetof(struct public_port, eee_status));
4504 	eee_status = (eee_status & EEE_SUPPORTED_SPEED_MASK) >>
4505 			EEE_SUPPORTED_SPEED_OFFSET;
4506 
4507 	if (eee_status & EEE_1G_SUPPORTED)
4508 		p_caps->eee_speed_caps |= QED_EEE_1G_ADV;
4509 	if (eee_status & EEE_10G_ADV)
4510 		p_caps->eee_speed_caps |= QED_EEE_10G_ADV;
4511 }
4512 
4513 static int
qed_get_hw_info(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,enum qed_pci_personality personality)4514 qed_get_hw_info(struct qed_hwfn *p_hwfn,
4515 		struct qed_ptt *p_ptt,
4516 		enum qed_pci_personality personality)
4517 {
4518 	int rc;
4519 
4520 	/* Since all information is common, only first hwfns should do this */
4521 	if (IS_LEAD_HWFN(p_hwfn)) {
4522 		rc = qed_iov_hw_info(p_hwfn);
4523 		if (rc)
4524 			return rc;
4525 	}
4526 
4527 	if (IS_LEAD_HWFN(p_hwfn))
4528 		qed_hw_info_port_num(p_hwfn, p_ptt);
4529 
4530 	qed_mcp_get_capabilities(p_hwfn, p_ptt);
4531 
4532 	qed_hw_get_nvm_info(p_hwfn, p_ptt);
4533 
4534 	rc = qed_int_igu_read_cam(p_hwfn, p_ptt);
4535 	if (rc)
4536 		return rc;
4537 
4538 	if (qed_mcp_is_init(p_hwfn))
4539 		ether_addr_copy(p_hwfn->hw_info.hw_mac_addr,
4540 				p_hwfn->mcp_info->func_info.mac);
4541 	else
4542 		eth_random_addr(p_hwfn->hw_info.hw_mac_addr);
4543 
4544 	if (qed_mcp_is_init(p_hwfn)) {
4545 		if (p_hwfn->mcp_info->func_info.ovlan != QED_MCP_VLAN_UNSET)
4546 			p_hwfn->hw_info.ovlan =
4547 				p_hwfn->mcp_info->func_info.ovlan;
4548 
4549 		qed_mcp_cmd_port_init(p_hwfn, p_ptt);
4550 
4551 		qed_get_eee_caps(p_hwfn, p_ptt);
4552 
4553 		qed_mcp_read_ufp_config(p_hwfn, p_ptt);
4554 	}
4555 
4556 	if (qed_mcp_is_init(p_hwfn)) {
4557 		enum qed_pci_personality protocol;
4558 
4559 		protocol = p_hwfn->mcp_info->func_info.protocol;
4560 		p_hwfn->hw_info.personality = protocol;
4561 	}
4562 
4563 	if (QED_IS_ROCE_PERSONALITY(p_hwfn))
4564 		p_hwfn->hw_info.multi_tc_roce_en = true;
4565 
4566 	p_hwfn->hw_info.num_hw_tc = NUM_PHYS_TCS_4PORT_K2;
4567 	p_hwfn->hw_info.num_active_tc = 1;
4568 
4569 	qed_get_num_funcs(p_hwfn, p_ptt);
4570 
4571 	if (qed_mcp_is_init(p_hwfn))
4572 		p_hwfn->hw_info.mtu = p_hwfn->mcp_info->func_info.mtu;
4573 
4574 	return qed_hw_get_resc(p_hwfn, p_ptt);
4575 }
4576 
qed_get_dev_info(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)4577 static int qed_get_dev_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
4578 {
4579 	struct qed_dev *cdev = p_hwfn->cdev;
4580 	u16 device_id_mask;
4581 	u32 tmp;
4582 
4583 	/* Read Vendor Id / Device Id */
4584 	pci_read_config_word(cdev->pdev, PCI_VENDOR_ID, &cdev->vendor_id);
4585 	pci_read_config_word(cdev->pdev, PCI_DEVICE_ID, &cdev->device_id);
4586 
4587 	/* Determine type */
4588 	device_id_mask = cdev->device_id & QED_DEV_ID_MASK;
4589 	switch (device_id_mask) {
4590 	case QED_DEV_ID_MASK_BB:
4591 		cdev->type = QED_DEV_TYPE_BB;
4592 		break;
4593 	case QED_DEV_ID_MASK_AH:
4594 		cdev->type = QED_DEV_TYPE_AH;
4595 		break;
4596 	default:
4597 		DP_NOTICE(p_hwfn, "Unknown device id 0x%x\n", cdev->device_id);
4598 		return -EBUSY;
4599 	}
4600 
4601 	cdev->chip_num = (u16)qed_rd(p_hwfn, p_ptt, MISCS_REG_CHIP_NUM);
4602 	cdev->chip_rev = (u16)qed_rd(p_hwfn, p_ptt, MISCS_REG_CHIP_REV);
4603 
4604 	MASK_FIELD(CHIP_REV, cdev->chip_rev);
4605 
4606 	/* Learn number of HW-functions */
4607 	tmp = qed_rd(p_hwfn, p_ptt, MISCS_REG_CMT_ENABLED_FOR_PAIR);
4608 
4609 	if (tmp & (1 << p_hwfn->rel_pf_id)) {
4610 		DP_NOTICE(cdev->hwfns, "device in CMT mode\n");
4611 		cdev->num_hwfns = 2;
4612 	} else {
4613 		cdev->num_hwfns = 1;
4614 	}
4615 
4616 	cdev->chip_bond_id = qed_rd(p_hwfn, p_ptt,
4617 				    MISCS_REG_CHIP_TEST_REG) >> 4;
4618 	MASK_FIELD(CHIP_BOND_ID, cdev->chip_bond_id);
4619 	cdev->chip_metal = (u16)qed_rd(p_hwfn, p_ptt, MISCS_REG_CHIP_METAL);
4620 	MASK_FIELD(CHIP_METAL, cdev->chip_metal);
4621 
4622 	DP_INFO(cdev->hwfns,
4623 		"Chip details - %s %c%d, Num: %04x Rev: %04x Bond id: %04x Metal: %04x\n",
4624 		QED_IS_BB(cdev) ? "BB" : "AH",
4625 		'A' + cdev->chip_rev,
4626 		(int)cdev->chip_metal,
4627 		cdev->chip_num, cdev->chip_rev,
4628 		cdev->chip_bond_id, cdev->chip_metal);
4629 
4630 	return 0;
4631 }
4632 
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)4633 static int qed_hw_prepare_single(struct qed_hwfn *p_hwfn,
4634 				 void __iomem *p_regview,
4635 				 void __iomem *p_doorbells,
4636 				 u64 db_phys_addr,
4637 				 enum qed_pci_personality personality)
4638 {
4639 	struct qed_dev *cdev = p_hwfn->cdev;
4640 	int rc = 0;
4641 
4642 	/* Split PCI bars evenly between hwfns */
4643 	p_hwfn->regview = p_regview;
4644 	p_hwfn->doorbells = p_doorbells;
4645 	p_hwfn->db_phys_addr = db_phys_addr;
4646 
4647 	if (IS_VF(p_hwfn->cdev))
4648 		return qed_vf_hw_prepare(p_hwfn);
4649 
4650 	/* Validate that chip access is feasible */
4651 	if (REG_RD(p_hwfn, PXP_PF_ME_OPAQUE_ADDR) == 0xffffffff) {
4652 		DP_ERR(p_hwfn,
4653 		       "Reading the ME register returns all Fs; Preventing further chip access\n");
4654 		return -EINVAL;
4655 	}
4656 
4657 	get_function_id(p_hwfn);
4658 
4659 	/* Allocate PTT pool */
4660 	rc = qed_ptt_pool_alloc(p_hwfn);
4661 	if (rc)
4662 		goto err0;
4663 
4664 	/* Allocate the main PTT */
4665 	p_hwfn->p_main_ptt = qed_get_reserved_ptt(p_hwfn, RESERVED_PTT_MAIN);
4666 
4667 	/* First hwfn learns basic information, e.g., number of hwfns */
4668 	if (!p_hwfn->my_id) {
4669 		rc = qed_get_dev_info(p_hwfn, p_hwfn->p_main_ptt);
4670 		if (rc)
4671 			goto err1;
4672 	}
4673 
4674 	qed_hw_hwfn_prepare(p_hwfn);
4675 
4676 	/* Initialize MCP structure */
4677 	rc = qed_mcp_cmd_init(p_hwfn, p_hwfn->p_main_ptt);
4678 	if (rc) {
4679 		DP_NOTICE(p_hwfn, "Failed initializing mcp command\n");
4680 		goto err1;
4681 	}
4682 
4683 	/* Read the device configuration information from the HW and SHMEM */
4684 	rc = qed_get_hw_info(p_hwfn, p_hwfn->p_main_ptt, personality);
4685 	if (rc) {
4686 		DP_NOTICE(p_hwfn, "Failed to get HW information\n");
4687 		goto err2;
4688 	}
4689 
4690 	/* Sending a mailbox to the MFW should be done after qed_get_hw_info()
4691 	 * is called as it sets the ports number in an engine.
4692 	 */
4693 	if (IS_LEAD_HWFN(p_hwfn) && !cdev->recov_in_prog) {
4694 		rc = qed_mcp_initiate_pf_flr(p_hwfn, p_hwfn->p_main_ptt);
4695 		if (rc)
4696 			DP_NOTICE(p_hwfn, "Failed to initiate PF FLR\n");
4697 	}
4698 
4699 	/* NVRAM info initialization and population */
4700 	if (IS_LEAD_HWFN(p_hwfn)) {
4701 		rc = qed_mcp_nvm_info_populate(p_hwfn);
4702 		if (rc) {
4703 			DP_NOTICE(p_hwfn,
4704 				  "Failed to populate nvm info shadow\n");
4705 			goto err2;
4706 		}
4707 	}
4708 
4709 	/* Allocate the init RT array and initialize the init-ops engine */
4710 	rc = qed_init_alloc(p_hwfn);
4711 	if (rc)
4712 		goto err3;
4713 
4714 	return rc;
4715 err3:
4716 	if (IS_LEAD_HWFN(p_hwfn))
4717 		qed_mcp_nvm_info_free(p_hwfn);
4718 err2:
4719 	if (IS_LEAD_HWFN(p_hwfn))
4720 		qed_iov_free_hw_info(p_hwfn->cdev);
4721 	qed_mcp_free(p_hwfn);
4722 err1:
4723 	qed_hw_hwfn_free(p_hwfn);
4724 err0:
4725 	return rc;
4726 }
4727 
qed_hw_prepare(struct qed_dev * cdev,int personality)4728 int qed_hw_prepare(struct qed_dev *cdev,
4729 		   int personality)
4730 {
4731 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
4732 	int rc;
4733 
4734 	/* Store the precompiled init data ptrs */
4735 	if (IS_PF(cdev))
4736 		qed_init_iro_array(cdev);
4737 
4738 	/* Initialize the first hwfn - will learn number of hwfns */
4739 	rc = qed_hw_prepare_single(p_hwfn,
4740 				   cdev->regview,
4741 				   cdev->doorbells,
4742 				   cdev->db_phys_addr,
4743 				   personality);
4744 	if (rc)
4745 		return rc;
4746 
4747 	personality = p_hwfn->hw_info.personality;
4748 
4749 	/* Initialize the rest of the hwfns */
4750 	if (cdev->num_hwfns > 1) {
4751 		void __iomem *p_regview, *p_doorbell;
4752 		u64 db_phys_addr;
4753 		u32 offset;
4754 
4755 		/* adjust bar offset for second engine */
4756 		offset = qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
4757 					 BAR_ID_0) / 2;
4758 		p_regview = cdev->regview + offset;
4759 
4760 		offset = qed_hw_bar_size(p_hwfn, p_hwfn->p_main_ptt,
4761 					 BAR_ID_1) / 2;
4762 
4763 		p_doorbell = cdev->doorbells + offset;
4764 
4765 		db_phys_addr = cdev->db_phys_addr + offset;
4766 
4767 		/* prepare second hw function */
4768 		rc = qed_hw_prepare_single(&cdev->hwfns[1], p_regview,
4769 					   p_doorbell, db_phys_addr,
4770 					   personality);
4771 
4772 		/* in case of error, need to free the previously
4773 		 * initiliazed hwfn 0.
4774 		 */
4775 		if (rc) {
4776 			if (IS_PF(cdev)) {
4777 				qed_init_free(p_hwfn);
4778 				qed_mcp_nvm_info_free(p_hwfn);
4779 				qed_mcp_free(p_hwfn);
4780 				qed_hw_hwfn_free(p_hwfn);
4781 			}
4782 		}
4783 	}
4784 
4785 	return rc;
4786 }
4787 
qed_hw_remove(struct qed_dev * cdev)4788 void qed_hw_remove(struct qed_dev *cdev)
4789 {
4790 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
4791 	int i;
4792 
4793 	if (IS_PF(cdev))
4794 		qed_mcp_ov_update_driver_state(p_hwfn, p_hwfn->p_main_ptt,
4795 					       QED_OV_DRIVER_STATE_NOT_LOADED);
4796 
4797 	for_each_hwfn(cdev, i) {
4798 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
4799 
4800 		if (IS_VF(cdev)) {
4801 			qed_vf_pf_release(p_hwfn);
4802 			continue;
4803 		}
4804 
4805 		qed_init_free(p_hwfn);
4806 		qed_hw_hwfn_free(p_hwfn);
4807 		qed_mcp_free(p_hwfn);
4808 	}
4809 
4810 	qed_iov_free_hw_info(cdev);
4811 
4812 	qed_mcp_nvm_info_free(p_hwfn);
4813 }
4814 
qed_fw_l2_queue(struct qed_hwfn * p_hwfn,u16 src_id,u16 * dst_id)4815 int qed_fw_l2_queue(struct qed_hwfn *p_hwfn, u16 src_id, u16 *dst_id)
4816 {
4817 	if (src_id >= RESC_NUM(p_hwfn, QED_L2_QUEUE)) {
4818 		u16 min, max;
4819 
4820 		min = (u16)RESC_START(p_hwfn, QED_L2_QUEUE);
4821 		max = min + RESC_NUM(p_hwfn, QED_L2_QUEUE);
4822 		DP_NOTICE(p_hwfn,
4823 			  "l2_queue id [%d] is not valid, available indices [%d - %d]\n",
4824 			  src_id, min, max);
4825 
4826 		return -EINVAL;
4827 	}
4828 
4829 	*dst_id = RESC_START(p_hwfn, QED_L2_QUEUE) + src_id;
4830 
4831 	return 0;
4832 }
4833 
qed_fw_vport(struct qed_hwfn * p_hwfn,u8 src_id,u8 * dst_id)4834 int qed_fw_vport(struct qed_hwfn *p_hwfn, u8 src_id, u8 *dst_id)
4835 {
4836 	if (src_id >= RESC_NUM(p_hwfn, QED_VPORT)) {
4837 		u8 min, max;
4838 
4839 		min = (u8)RESC_START(p_hwfn, QED_VPORT);
4840 		max = min + RESC_NUM(p_hwfn, QED_VPORT);
4841 		DP_NOTICE(p_hwfn,
4842 			  "vport id [%d] is not valid, available indices [%d - %d]\n",
4843 			  src_id, min, max);
4844 
4845 		return -EINVAL;
4846 	}
4847 
4848 	*dst_id = RESC_START(p_hwfn, QED_VPORT) + src_id;
4849 
4850 	return 0;
4851 }
4852 
qed_fw_rss_eng(struct qed_hwfn * p_hwfn,u8 src_id,u8 * dst_id)4853 int qed_fw_rss_eng(struct qed_hwfn *p_hwfn, u8 src_id, u8 *dst_id)
4854 {
4855 	if (src_id >= RESC_NUM(p_hwfn, QED_RSS_ENG)) {
4856 		u8 min, max;
4857 
4858 		min = (u8)RESC_START(p_hwfn, QED_RSS_ENG);
4859 		max = min + RESC_NUM(p_hwfn, QED_RSS_ENG);
4860 		DP_NOTICE(p_hwfn,
4861 			  "rss_eng id [%d] is not valid, available indices [%d - %d]\n",
4862 			  src_id, min, max);
4863 
4864 		return -EINVAL;
4865 	}
4866 
4867 	*dst_id = RESC_START(p_hwfn, QED_RSS_ENG) + src_id;
4868 
4869 	return 0;
4870 }
4871 
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)4872 static int qed_set_coalesce(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
4873 			    u32 hw_addr, void *p_eth_qzone,
4874 			    size_t eth_qzone_size, u8 timeset)
4875 {
4876 	struct coalescing_timeset *p_coal_timeset;
4877 
4878 	if (p_hwfn->cdev->int_coalescing_mode != QED_COAL_MODE_ENABLE) {
4879 		DP_NOTICE(p_hwfn, "Coalescing configuration not enabled\n");
4880 		return -EINVAL;
4881 	}
4882 
4883 	p_coal_timeset = p_eth_qzone;
4884 	memset(p_eth_qzone, 0, eth_qzone_size);
4885 	SET_FIELD(p_coal_timeset->value, COALESCING_TIMESET_TIMESET, timeset);
4886 	SET_FIELD(p_coal_timeset->value, COALESCING_TIMESET_VALID, 1);
4887 	qed_memcpy_to(p_hwfn, p_ptt, hw_addr, p_eth_qzone, eth_qzone_size);
4888 
4889 	return 0;
4890 }
4891 
qed_set_queue_coalesce(u16 rx_coal,u16 tx_coal,void * p_handle)4892 int qed_set_queue_coalesce(u16 rx_coal, u16 tx_coal, void *p_handle)
4893 {
4894 	struct qed_queue_cid *p_cid = p_handle;
4895 	struct qed_hwfn *p_hwfn;
4896 	struct qed_ptt *p_ptt;
4897 	int rc = 0;
4898 
4899 	p_hwfn = p_cid->p_owner;
4900 
4901 	if (IS_VF(p_hwfn->cdev))
4902 		return qed_vf_pf_set_coalesce(p_hwfn, rx_coal, tx_coal, p_cid);
4903 
4904 	p_ptt = qed_ptt_acquire(p_hwfn);
4905 	if (!p_ptt)
4906 		return -EAGAIN;
4907 
4908 	if (rx_coal) {
4909 		rc = qed_set_rxq_coalesce(p_hwfn, p_ptt, rx_coal, p_cid);
4910 		if (rc)
4911 			goto out;
4912 		p_hwfn->cdev->rx_coalesce_usecs = rx_coal;
4913 	}
4914 
4915 	if (tx_coal) {
4916 		rc = qed_set_txq_coalesce(p_hwfn, p_ptt, tx_coal, p_cid);
4917 		if (rc)
4918 			goto out;
4919 		p_hwfn->cdev->tx_coalesce_usecs = tx_coal;
4920 	}
4921 out:
4922 	qed_ptt_release(p_hwfn, p_ptt);
4923 	return rc;
4924 }
4925 
qed_set_rxq_coalesce(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u16 coalesce,struct qed_queue_cid * p_cid)4926 int qed_set_rxq_coalesce(struct qed_hwfn *p_hwfn,
4927 			 struct qed_ptt *p_ptt,
4928 			 u16 coalesce, struct qed_queue_cid *p_cid)
4929 {
4930 	struct ustorm_eth_queue_zone eth_qzone;
4931 	u8 timeset, timer_res;
4932 	u32 address;
4933 	int rc;
4934 
4935 	/* Coalesce = (timeset << timer-resolution), timeset is 7bit wide */
4936 	if (coalesce <= 0x7F) {
4937 		timer_res = 0;
4938 	} else if (coalesce <= 0xFF) {
4939 		timer_res = 1;
4940 	} else if (coalesce <= 0x1FF) {
4941 		timer_res = 2;
4942 	} else {
4943 		DP_ERR(p_hwfn, "Invalid coalesce value - %d\n", coalesce);
4944 		return -EINVAL;
4945 	}
4946 	timeset = (u8)(coalesce >> timer_res);
4947 
4948 	rc = qed_int_set_timer_res(p_hwfn, p_ptt, timer_res,
4949 				   p_cid->sb_igu_id, false);
4950 	if (rc)
4951 		goto out;
4952 
4953 	address = BAR0_MAP_REG_USDM_RAM +
4954 		  USTORM_ETH_QUEUE_ZONE_GTT_OFFSET(p_cid->abs.queue_id);
4955 
4956 	rc = qed_set_coalesce(p_hwfn, p_ptt, address, &eth_qzone,
4957 			      sizeof(struct ustorm_eth_queue_zone), timeset);
4958 	if (rc)
4959 		goto out;
4960 
4961 out:
4962 	return rc;
4963 }
4964 
qed_set_txq_coalesce(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u16 coalesce,struct qed_queue_cid * p_cid)4965 int qed_set_txq_coalesce(struct qed_hwfn *p_hwfn,
4966 			 struct qed_ptt *p_ptt,
4967 			 u16 coalesce, struct qed_queue_cid *p_cid)
4968 {
4969 	struct xstorm_eth_queue_zone eth_qzone;
4970 	u8 timeset, timer_res;
4971 	u32 address;
4972 	int rc;
4973 
4974 	/* Coalesce = (timeset << timer-resolution), timeset is 7bit wide */
4975 	if (coalesce <= 0x7F) {
4976 		timer_res = 0;
4977 	} else if (coalesce <= 0xFF) {
4978 		timer_res = 1;
4979 	} else if (coalesce <= 0x1FF) {
4980 		timer_res = 2;
4981 	} else {
4982 		DP_ERR(p_hwfn, "Invalid coalesce value - %d\n", coalesce);
4983 		return -EINVAL;
4984 	}
4985 	timeset = (u8)(coalesce >> timer_res);
4986 
4987 	rc = qed_int_set_timer_res(p_hwfn, p_ptt, timer_res,
4988 				   p_cid->sb_igu_id, true);
4989 	if (rc)
4990 		goto out;
4991 
4992 	address = BAR0_MAP_REG_XSDM_RAM +
4993 		  XSTORM_ETH_QUEUE_ZONE_GTT_OFFSET(p_cid->abs.queue_id);
4994 
4995 	rc = qed_set_coalesce(p_hwfn, p_ptt, address, &eth_qzone,
4996 			      sizeof(struct xstorm_eth_queue_zone), timeset);
4997 out:
4998 	return rc;
4999 }
5000 
5001 /* Calculate final WFQ values for all vports and configure them.
5002  * After this configuration each vport will have
5003  * approx min rate =  min_pf_rate * (vport_wfq / QED_WFQ_UNIT)
5004  */
qed_configure_wfq_for_all_vports(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u32 min_pf_rate)5005 static void qed_configure_wfq_for_all_vports(struct qed_hwfn *p_hwfn,
5006 					     struct qed_ptt *p_ptt,
5007 					     u32 min_pf_rate)
5008 {
5009 	struct init_qm_vport_params *vport_params;
5010 	int i;
5011 
5012 	vport_params = p_hwfn->qm_info.qm_vport_params;
5013 
5014 	for (i = 0; i < p_hwfn->qm_info.num_vports; i++) {
5015 		u32 wfq_speed = p_hwfn->qm_info.wfq_data[i].min_speed;
5016 
5017 		vport_params[i].wfq = (wfq_speed * QED_WFQ_UNIT) /
5018 						min_pf_rate;
5019 		qed_init_vport_wfq(p_hwfn, p_ptt,
5020 				   vport_params[i].first_tx_pq_id,
5021 				   vport_params[i].wfq);
5022 	}
5023 }
5024 
qed_init_wfq_default_param(struct qed_hwfn * p_hwfn,u32 min_pf_rate)5025 static void qed_init_wfq_default_param(struct qed_hwfn *p_hwfn,
5026 				       u32 min_pf_rate)
5027 
5028 {
5029 	int i;
5030 
5031 	for (i = 0; i < p_hwfn->qm_info.num_vports; i++)
5032 		p_hwfn->qm_info.qm_vport_params[i].wfq = 1;
5033 }
5034 
qed_disable_wfq_for_all_vports(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u32 min_pf_rate)5035 static void qed_disable_wfq_for_all_vports(struct qed_hwfn *p_hwfn,
5036 					   struct qed_ptt *p_ptt,
5037 					   u32 min_pf_rate)
5038 {
5039 	struct init_qm_vport_params *vport_params;
5040 	int i;
5041 
5042 	vport_params = p_hwfn->qm_info.qm_vport_params;
5043 
5044 	for (i = 0; i < p_hwfn->qm_info.num_vports; i++) {
5045 		qed_init_wfq_default_param(p_hwfn, min_pf_rate);
5046 		qed_init_vport_wfq(p_hwfn, p_ptt,
5047 				   vport_params[i].first_tx_pq_id,
5048 				   vport_params[i].wfq);
5049 	}
5050 }
5051 
5052 /* This function performs several validations for WFQ
5053  * configuration and required min rate for a given vport
5054  * 1. req_rate must be greater than one percent of min_pf_rate.
5055  * 2. req_rate should not cause other vports [not configured for WFQ explicitly]
5056  *    rates to get less than one percent of min_pf_rate.
5057  * 3. total_req_min_rate [all vports min rate sum] shouldn't exceed min_pf_rate.
5058  */
qed_init_wfq_param(struct qed_hwfn * p_hwfn,u16 vport_id,u32 req_rate,u32 min_pf_rate)5059 static int qed_init_wfq_param(struct qed_hwfn *p_hwfn,
5060 			      u16 vport_id, u32 req_rate, u32 min_pf_rate)
5061 {
5062 	u32 total_req_min_rate = 0, total_left_rate = 0, left_rate_per_vp = 0;
5063 	int non_requested_count = 0, req_count = 0, i, num_vports;
5064 
5065 	num_vports = p_hwfn->qm_info.num_vports;
5066 
5067 	if (num_vports < 2) {
5068 		DP_NOTICE(p_hwfn, "Unexpected num_vports: %d\n", num_vports);
5069 		return -EINVAL;
5070 	}
5071 
5072 	/* Accounting for the vports which are configured for WFQ explicitly */
5073 	for (i = 0; i < num_vports; i++) {
5074 		u32 tmp_speed;
5075 
5076 		if ((i != vport_id) &&
5077 		    p_hwfn->qm_info.wfq_data[i].configured) {
5078 			req_count++;
5079 			tmp_speed = p_hwfn->qm_info.wfq_data[i].min_speed;
5080 			total_req_min_rate += tmp_speed;
5081 		}
5082 	}
5083 
5084 	/* Include current vport data as well */
5085 	req_count++;
5086 	total_req_min_rate += req_rate;
5087 	non_requested_count = num_vports - req_count;
5088 
5089 	if (req_rate < min_pf_rate / QED_WFQ_UNIT) {
5090 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
5091 			   "Vport [%d] - Requested rate[%d Mbps] is less than one percent of configured PF min rate[%d Mbps]\n",
5092 			   vport_id, req_rate, min_pf_rate);
5093 		return -EINVAL;
5094 	}
5095 
5096 	if (num_vports > QED_WFQ_UNIT) {
5097 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
5098 			   "Number of vports is greater than %d\n",
5099 			   QED_WFQ_UNIT);
5100 		return -EINVAL;
5101 	}
5102 
5103 	if (total_req_min_rate > min_pf_rate) {
5104 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
5105 			   "Total requested min rate for all vports[%d Mbps] is greater than configured PF min rate[%d Mbps]\n",
5106 			   total_req_min_rate, min_pf_rate);
5107 		return -EINVAL;
5108 	}
5109 
5110 	total_left_rate	= min_pf_rate - total_req_min_rate;
5111 
5112 	left_rate_per_vp = total_left_rate / non_requested_count;
5113 	if (left_rate_per_vp <  min_pf_rate / QED_WFQ_UNIT) {
5114 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
5115 			   "Non WFQ configured vports rate [%d Mbps] is less than one percent of configured PF min rate[%d Mbps]\n",
5116 			   left_rate_per_vp, min_pf_rate);
5117 		return -EINVAL;
5118 	}
5119 
5120 	p_hwfn->qm_info.wfq_data[vport_id].min_speed = req_rate;
5121 	p_hwfn->qm_info.wfq_data[vport_id].configured = true;
5122 
5123 	for (i = 0; i < num_vports; i++) {
5124 		if (p_hwfn->qm_info.wfq_data[i].configured)
5125 			continue;
5126 
5127 		p_hwfn->qm_info.wfq_data[i].min_speed = left_rate_per_vp;
5128 	}
5129 
5130 	return 0;
5131 }
5132 
__qed_configure_vport_wfq(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u16 vp_id,u32 rate)5133 static int __qed_configure_vport_wfq(struct qed_hwfn *p_hwfn,
5134 				     struct qed_ptt *p_ptt, u16 vp_id, u32 rate)
5135 {
5136 	struct qed_mcp_link_state *p_link;
5137 	int rc = 0;
5138 
5139 	p_link = &p_hwfn->cdev->hwfns[0].mcp_info->link_output;
5140 
5141 	if (!p_link->min_pf_rate) {
5142 		p_hwfn->qm_info.wfq_data[vp_id].min_speed = rate;
5143 		p_hwfn->qm_info.wfq_data[vp_id].configured = true;
5144 		return rc;
5145 	}
5146 
5147 	rc = qed_init_wfq_param(p_hwfn, vp_id, rate, p_link->min_pf_rate);
5148 
5149 	if (!rc)
5150 		qed_configure_wfq_for_all_vports(p_hwfn, p_ptt,
5151 						 p_link->min_pf_rate);
5152 	else
5153 		DP_NOTICE(p_hwfn,
5154 			  "Validation failed while configuring min rate\n");
5155 
5156 	return rc;
5157 }
5158 
__qed_configure_vp_wfq_on_link_change(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt,u32 min_pf_rate)5159 static int __qed_configure_vp_wfq_on_link_change(struct qed_hwfn *p_hwfn,
5160 						 struct qed_ptt *p_ptt,
5161 						 u32 min_pf_rate)
5162 {
5163 	bool use_wfq = false;
5164 	int rc = 0;
5165 	u16 i;
5166 
5167 	/* Validate all pre configured vports for wfq */
5168 	for (i = 0; i < p_hwfn->qm_info.num_vports; i++) {
5169 		u32 rate;
5170 
5171 		if (!p_hwfn->qm_info.wfq_data[i].configured)
5172 			continue;
5173 
5174 		rate = p_hwfn->qm_info.wfq_data[i].min_speed;
5175 		use_wfq = true;
5176 
5177 		rc = qed_init_wfq_param(p_hwfn, i, rate, min_pf_rate);
5178 		if (rc) {
5179 			DP_NOTICE(p_hwfn,
5180 				  "WFQ validation failed while configuring min rate\n");
5181 			break;
5182 		}
5183 	}
5184 
5185 	if (!rc && use_wfq)
5186 		qed_configure_wfq_for_all_vports(p_hwfn, p_ptt, min_pf_rate);
5187 	else
5188 		qed_disable_wfq_for_all_vports(p_hwfn, p_ptt, min_pf_rate);
5189 
5190 	return rc;
5191 }
5192 
5193 /* Main API for qed clients to configure vport min rate.
5194  * vp_id - vport id in PF Range[0 - (total_num_vports_per_pf - 1)]
5195  * rate - Speed in Mbps needs to be assigned to a given vport.
5196  */
qed_configure_vport_wfq(struct qed_dev * cdev,u16 vp_id,u32 rate)5197 int qed_configure_vport_wfq(struct qed_dev *cdev, u16 vp_id, u32 rate)
5198 {
5199 	int i, rc = -EINVAL;
5200 
5201 	/* Currently not supported; Might change in future */
5202 	if (cdev->num_hwfns > 1) {
5203 		DP_NOTICE(cdev,
5204 			  "WFQ configuration is not supported for this device\n");
5205 		return rc;
5206 	}
5207 
5208 	for_each_hwfn(cdev, i) {
5209 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
5210 		struct qed_ptt *p_ptt;
5211 
5212 		p_ptt = qed_ptt_acquire(p_hwfn);
5213 		if (!p_ptt)
5214 			return -EBUSY;
5215 
5216 		rc = __qed_configure_vport_wfq(p_hwfn, p_ptt, vp_id, rate);
5217 
5218 		if (rc) {
5219 			qed_ptt_release(p_hwfn, p_ptt);
5220 			return rc;
5221 		}
5222 
5223 		qed_ptt_release(p_hwfn, p_ptt);
5224 	}
5225 
5226 	return rc;
5227 }
5228 
5229 /* 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)5230 void qed_configure_vp_wfq_on_link_change(struct qed_dev *cdev,
5231 					 struct qed_ptt *p_ptt, u32 min_pf_rate)
5232 {
5233 	int i;
5234 
5235 	if (cdev->num_hwfns > 1) {
5236 		DP_VERBOSE(cdev,
5237 			   NETIF_MSG_LINK,
5238 			   "WFQ configuration is not supported for this device\n");
5239 		return;
5240 	}
5241 
5242 	for_each_hwfn(cdev, i) {
5243 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
5244 
5245 		__qed_configure_vp_wfq_on_link_change(p_hwfn, p_ptt,
5246 						      min_pf_rate);
5247 	}
5248 }
5249 
__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)5250 int __qed_configure_pf_max_bandwidth(struct qed_hwfn *p_hwfn,
5251 				     struct qed_ptt *p_ptt,
5252 				     struct qed_mcp_link_state *p_link,
5253 				     u8 max_bw)
5254 {
5255 	int rc = 0;
5256 
5257 	p_hwfn->mcp_info->func_info.bandwidth_max = max_bw;
5258 
5259 	if (!p_link->line_speed && (max_bw != 100))
5260 		return rc;
5261 
5262 	p_link->speed = (p_link->line_speed * max_bw) / 100;
5263 	p_hwfn->qm_info.pf_rl = p_link->speed;
5264 
5265 	/* Since the limiter also affects Tx-switched traffic, we don't want it
5266 	 * to limit such traffic in case there's no actual limit.
5267 	 * In that case, set limit to imaginary high boundary.
5268 	 */
5269 	if (max_bw == 100)
5270 		p_hwfn->qm_info.pf_rl = 100000;
5271 
5272 	rc = qed_init_pf_rl(p_hwfn, p_ptt, p_hwfn->rel_pf_id,
5273 			    p_hwfn->qm_info.pf_rl);
5274 
5275 	DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
5276 		   "Configured MAX bandwidth to be %08x Mb/sec\n",
5277 		   p_link->speed);
5278 
5279 	return rc;
5280 }
5281 
5282 /* 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)5283 int qed_configure_pf_max_bandwidth(struct qed_dev *cdev, u8 max_bw)
5284 {
5285 	int i, rc = -EINVAL;
5286 
5287 	if (max_bw < 1 || max_bw > 100) {
5288 		DP_NOTICE(cdev, "PF max bw valid range is [1-100]\n");
5289 		return rc;
5290 	}
5291 
5292 	for_each_hwfn(cdev, i) {
5293 		struct qed_hwfn	*p_hwfn = &cdev->hwfns[i];
5294 		struct qed_hwfn *p_lead = QED_LEADING_HWFN(cdev);
5295 		struct qed_mcp_link_state *p_link;
5296 		struct qed_ptt *p_ptt;
5297 
5298 		p_link = &p_lead->mcp_info->link_output;
5299 
5300 		p_ptt = qed_ptt_acquire(p_hwfn);
5301 		if (!p_ptt)
5302 			return -EBUSY;
5303 
5304 		rc = __qed_configure_pf_max_bandwidth(p_hwfn, p_ptt,
5305 						      p_link, max_bw);
5306 
5307 		qed_ptt_release(p_hwfn, p_ptt);
5308 
5309 		if (rc)
5310 			break;
5311 	}
5312 
5313 	return rc;
5314 }
5315 
__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)5316 int __qed_configure_pf_min_bandwidth(struct qed_hwfn *p_hwfn,
5317 				     struct qed_ptt *p_ptt,
5318 				     struct qed_mcp_link_state *p_link,
5319 				     u8 min_bw)
5320 {
5321 	int rc = 0;
5322 
5323 	p_hwfn->mcp_info->func_info.bandwidth_min = min_bw;
5324 	p_hwfn->qm_info.pf_wfq = min_bw;
5325 
5326 	if (!p_link->line_speed)
5327 		return rc;
5328 
5329 	p_link->min_pf_rate = (p_link->line_speed * min_bw) / 100;
5330 
5331 	rc = qed_init_pf_wfq(p_hwfn, p_ptt, p_hwfn->rel_pf_id, min_bw);
5332 
5333 	DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
5334 		   "Configured MIN bandwidth to be %d Mb/sec\n",
5335 		   p_link->min_pf_rate);
5336 
5337 	return rc;
5338 }
5339 
5340 /* 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)5341 int qed_configure_pf_min_bandwidth(struct qed_dev *cdev, u8 min_bw)
5342 {
5343 	int i, rc = -EINVAL;
5344 
5345 	if (min_bw < 1 || min_bw > 100) {
5346 		DP_NOTICE(cdev, "PF min bw valid range is [1-100]\n");
5347 		return rc;
5348 	}
5349 
5350 	for_each_hwfn(cdev, i) {
5351 		struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
5352 		struct qed_hwfn *p_lead = QED_LEADING_HWFN(cdev);
5353 		struct qed_mcp_link_state *p_link;
5354 		struct qed_ptt *p_ptt;
5355 
5356 		p_link = &p_lead->mcp_info->link_output;
5357 
5358 		p_ptt = qed_ptt_acquire(p_hwfn);
5359 		if (!p_ptt)
5360 			return -EBUSY;
5361 
5362 		rc = __qed_configure_pf_min_bandwidth(p_hwfn, p_ptt,
5363 						      p_link, min_bw);
5364 		if (rc) {
5365 			qed_ptt_release(p_hwfn, p_ptt);
5366 			return rc;
5367 		}
5368 
5369 		if (p_link->min_pf_rate) {
5370 			u32 min_rate = p_link->min_pf_rate;
5371 
5372 			rc = __qed_configure_vp_wfq_on_link_change(p_hwfn,
5373 								   p_ptt,
5374 								   min_rate);
5375 		}
5376 
5377 		qed_ptt_release(p_hwfn, p_ptt);
5378 	}
5379 
5380 	return rc;
5381 }
5382 
qed_clean_wfq_db(struct qed_hwfn * p_hwfn,struct qed_ptt * p_ptt)5383 void qed_clean_wfq_db(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
5384 {
5385 	struct qed_mcp_link_state *p_link;
5386 
5387 	p_link = &p_hwfn->mcp_info->link_output;
5388 
5389 	if (p_link->min_pf_rate)
5390 		qed_disable_wfq_for_all_vports(p_hwfn, p_ptt,
5391 					       p_link->min_pf_rate);
5392 
5393 	memset(p_hwfn->qm_info.wfq_data, 0,
5394 	       sizeof(*p_hwfn->qm_info.wfq_data) * p_hwfn->qm_info.num_vports);
5395 }
5396 
qed_device_num_ports(struct qed_dev * cdev)5397 int qed_device_num_ports(struct qed_dev *cdev)
5398 {
5399 	return cdev->num_ports;
5400 }
5401 
qed_set_fw_mac_addr(__le16 * fw_msb,__le16 * fw_mid,__le16 * fw_lsb,u8 * mac)5402 void qed_set_fw_mac_addr(__le16 *fw_msb,
5403 			 __le16 *fw_mid, __le16 *fw_lsb, u8 *mac)
5404 {
5405 	((u8 *)fw_msb)[0] = mac[1];
5406 	((u8 *)fw_msb)[1] = mac[0];
5407 	((u8 *)fw_mid)[0] = mac[3];
5408 	((u8 *)fw_mid)[1] = mac[2];
5409 	((u8 *)fw_lsb)[0] = mac[5];
5410 	((u8 *)fw_lsb)[1] = mac[4];
5411 }
5412 
qed_llh_shadow_remove_all_filters(struct qed_dev * cdev,u8 ppfid)5413 static int qed_llh_shadow_remove_all_filters(struct qed_dev *cdev, u8 ppfid)
5414 {
5415 	struct qed_llh_info *p_llh_info = cdev->p_llh_info;
5416 	struct qed_llh_filter_info *p_filters;
5417 	int rc;
5418 
5419 	rc = qed_llh_shadow_sanity(cdev, ppfid, 0, "remove_all");
5420 	if (rc)
5421 		return rc;
5422 
5423 	p_filters = p_llh_info->pp_filters[ppfid];
5424 	memset(p_filters, 0, NIG_REG_LLH_FUNC_FILTER_EN_SIZE *
5425 	       sizeof(*p_filters));
5426 
5427 	return 0;
5428 }
5429 
qed_llh_clear_ppfid_filters(struct qed_dev * cdev,u8 ppfid)5430 static void qed_llh_clear_ppfid_filters(struct qed_dev *cdev, u8 ppfid)
5431 {
5432 	struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev);
5433 	struct qed_ptt *p_ptt = qed_ptt_acquire(p_hwfn);
5434 	u8 filter_idx, abs_ppfid;
5435 	int rc = 0;
5436 
5437 	if (!p_ptt)
5438 		return;
5439 
5440 	if (!test_bit(QED_MF_LLH_PROTO_CLSS, &cdev->mf_bits) &&
5441 	    !test_bit(QED_MF_LLH_MAC_CLSS, &cdev->mf_bits))
5442 		goto out;
5443 
5444 	rc = qed_llh_abs_ppfid(cdev, ppfid, &abs_ppfid);
5445 	if (rc)
5446 		goto out;
5447 
5448 	rc = qed_llh_shadow_remove_all_filters(cdev, ppfid);
5449 	if (rc)
5450 		goto out;
5451 
5452 	for (filter_idx = 0; filter_idx < NIG_REG_LLH_FUNC_FILTER_EN_SIZE;
5453 	     filter_idx++) {
5454 		rc = qed_llh_remove_filter(p_hwfn, p_ptt,
5455 					   abs_ppfid, filter_idx);
5456 		if (rc)
5457 			goto out;
5458 	}
5459 out:
5460 	qed_ptt_release(p_hwfn, p_ptt);
5461 }
5462 
qed_llh_add_src_tcp_port_filter(struct qed_dev * cdev,u16 src_port)5463 int qed_llh_add_src_tcp_port_filter(struct qed_dev *cdev, u16 src_port)
5464 {
5465 	return qed_llh_add_protocol_filter(cdev, 0,
5466 					   QED_LLH_FILTER_TCP_SRC_PORT,
5467 					   src_port, QED_LLH_DONT_CARE);
5468 }
5469 
qed_llh_remove_src_tcp_port_filter(struct qed_dev * cdev,u16 src_port)5470 void qed_llh_remove_src_tcp_port_filter(struct qed_dev *cdev, u16 src_port)
5471 {
5472 	qed_llh_remove_protocol_filter(cdev, 0,
5473 				       QED_LLH_FILTER_TCP_SRC_PORT,
5474 				       src_port, QED_LLH_DONT_CARE);
5475 }
5476 
qed_llh_add_dst_tcp_port_filter(struct qed_dev * cdev,u16 dest_port)5477 int qed_llh_add_dst_tcp_port_filter(struct qed_dev *cdev, u16 dest_port)
5478 {
5479 	return qed_llh_add_protocol_filter(cdev, 0,
5480 					   QED_LLH_FILTER_TCP_DEST_PORT,
5481 					   QED_LLH_DONT_CARE, dest_port);
5482 }
5483 
qed_llh_remove_dst_tcp_port_filter(struct qed_dev * cdev,u16 dest_port)5484 void qed_llh_remove_dst_tcp_port_filter(struct qed_dev *cdev, u16 dest_port)
5485 {
5486 	qed_llh_remove_protocol_filter(cdev, 0,
5487 				       QED_LLH_FILTER_TCP_DEST_PORT,
5488 				       QED_LLH_DONT_CARE, dest_port);
5489 }
5490 
qed_llh_clear_all_filters(struct qed_dev * cdev)5491 void qed_llh_clear_all_filters(struct qed_dev *cdev)
5492 {
5493 	u8 ppfid;
5494 
5495 	if (!test_bit(QED_MF_LLH_PROTO_CLSS, &cdev->mf_bits) &&
5496 	    !test_bit(QED_MF_LLH_MAC_CLSS, &cdev->mf_bits))
5497 		return;
5498 
5499 	for (ppfid = 0; ppfid < cdev->p_llh_info->num_ppfid; ppfid++)
5500 		qed_llh_clear_ppfid_filters(cdev, ppfid);
5501 }
5502