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 ¶ms);
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, ¶m);
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, ¶m);
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, ¶m);
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, ð_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, ð_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