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x86/mm/pat: Don't report PAT on CPUs that don't support it
[linux/fpc-iii.git] / drivers / net / ethernet / qlogic / qed / qed_dcbx.c
blobcfdadb658ade0fe73551f6f822ec8ae1805f83de
1 /* QLogic qed NIC Driver
2 * Copyright (c) 2015-2017 QLogic Corporation
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and /or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33 #include <linux/types.h>
34 #include <asm/byteorder.h>
35 #include <linux/bitops.h>
36 #include <linux/dcbnl.h>
37 #include <linux/errno.h>
38 #include <linux/kernel.h>
39 #include <linux/slab.h>
40 #include <linux/string.h>
41 #include "qed.h"
42 #include "qed_cxt.h"
43 #include "qed_dcbx.h"
44 #include "qed_hsi.h"
45 #include "qed_sp.h"
46 #include "qed_sriov.h"
47 #ifdef CONFIG_DCB
48 #include <linux/qed/qed_eth_if.h>
49 #endif
50
51 #define QED_DCBX_MAX_MIB_READ_TRY (100)
52 #define QED_ETH_TYPE_DEFAULT (0)
53 #define QED_ETH_TYPE_ROCE (0x8915)
54 #define QED_UDP_PORT_TYPE_ROCE_V2 (0x12B7)
55 #define QED_ETH_TYPE_FCOE (0x8906)
56 #define QED_TCP_PORT_ISCSI (0xCBC)
57
58 #define QED_DCBX_INVALID_PRIORITY 0xFF
59
60 /* Get Traffic Class from priority traffic class table, 4 bits represent
61 * the traffic class corresponding to the priority.
62 */
63 #define QED_DCBX_PRIO2TC(prio_tc_tbl, prio) \
64 ((u32)(prio_tc_tbl >> ((7 - prio) * 4)) & 0x7)
65
66 static const struct qed_dcbx_app_metadata qed_dcbx_app_update[] = {
67 {DCBX_PROTOCOL_ISCSI, "ISCSI", QED_PCI_ISCSI},
68 {DCBX_PROTOCOL_FCOE, "FCOE", QED_PCI_FCOE},
69 {DCBX_PROTOCOL_ROCE, "ROCE", QED_PCI_ETH_ROCE},
70 {DCBX_PROTOCOL_ROCE_V2, "ROCE_V2", QED_PCI_ETH_ROCE},
71 {DCBX_PROTOCOL_ETH, "ETH", QED_PCI_ETH},
72 };
73
74 static bool qed_dcbx_app_ethtype(u32 app_info_bitmap)
75 {
76 return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
77 DCBX_APP_SF_ETHTYPE);
78 }
79
80 static bool qed_dcbx_ieee_app_ethtype(u32 app_info_bitmap)
81 {
82 u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
83
84 /* Old MFW */
85 if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
86 return qed_dcbx_app_ethtype(app_info_bitmap);
87
88 return !!(mfw_val == DCBX_APP_SF_IEEE_ETHTYPE);
89 }
90
91 static bool qed_dcbx_app_port(u32 app_info_bitmap)
92 {
93 return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
94 DCBX_APP_SF_PORT);
95 }
96
97 static bool qed_dcbx_ieee_app_port(u32 app_info_bitmap, u8 type)
98 {
99 u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
100
101 /* Old MFW */
102 if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
103 return qed_dcbx_app_port(app_info_bitmap);
104
105 return !!(mfw_val == type || mfw_val == DCBX_APP_SF_IEEE_TCP_UDP_PORT);
106 }
107
108 static bool qed_dcbx_default_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
109 {
110 bool ethtype;
111
112 if (ieee)
113 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
114 else
115 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
116
117 return !!(ethtype && (proto_id == QED_ETH_TYPE_DEFAULT));
118 }
119
120 static bool qed_dcbx_iscsi_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
121 {
122 bool port;
123
124 if (ieee)
125 port = qed_dcbx_ieee_app_port(app_info_bitmap,
126 DCBX_APP_SF_IEEE_TCP_PORT);
127 else
128 port = qed_dcbx_app_port(app_info_bitmap);
129
130 return !!(port && (proto_id == QED_TCP_PORT_ISCSI));
131 }
132
133 static bool qed_dcbx_fcoe_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
134 {
135 bool ethtype;
136
137 if (ieee)
138 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
139 else
140 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
141
142 return !!(ethtype && (proto_id == QED_ETH_TYPE_FCOE));
143 }
144
145 static bool qed_dcbx_roce_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
146 {
147 bool ethtype;
148
149 if (ieee)
150 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
151 else
152 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
153
154 return !!(ethtype && (proto_id == QED_ETH_TYPE_ROCE));
155 }
156
157 static bool qed_dcbx_roce_v2_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
158 {
159 bool port;
160
161 if (ieee)
162 port = qed_dcbx_ieee_app_port(app_info_bitmap,
163 DCBX_APP_SF_IEEE_UDP_PORT);
164 else
165 port = qed_dcbx_app_port(app_info_bitmap);
166
167 return !!(port && (proto_id == QED_UDP_PORT_TYPE_ROCE_V2));
168 }
169
170 static void
171 qed_dcbx_dp_protocol(struct qed_hwfn *p_hwfn, struct qed_dcbx_results *p_data)
172 {
173 enum dcbx_protocol_type id;
174 int i;
175
176 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "DCBX negotiated: %d\n",
177 p_data->dcbx_enabled);
178
179 for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
180 id = qed_dcbx_app_update[i].id;
181
182 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
183 "%s info: update %d, enable %d, prio %d, tc %d, num_tc %d\n",
184 qed_dcbx_app_update[i].name, p_data->arr[id].update,
185 p_data->arr[id].enable, p_data->arr[id].priority,
186 p_data->arr[id].tc, p_hwfn->hw_info.num_tc);
187 }
188 }
189
190 static void
191 qed_dcbx_set_params(struct qed_dcbx_results *p_data,
192 struct qed_hw_info *p_info,
193 bool enable,
194 bool update,
195 u8 prio,
196 u8 tc,
197 enum dcbx_protocol_type type,
198 enum qed_pci_personality personality)
199 {
200 /* PF update ramrod data */
201 p_data->arr[type].update = update;
202 p_data->arr[type].enable = enable;
203 p_data->arr[type].priority = prio;
204 p_data->arr[type].tc = tc;
205
206 /* QM reconf data */
207 if (p_info->personality == personality) {
208 if (personality == QED_PCI_ETH)
209 p_info->non_offload_tc = tc;
210 else
211 p_info->offload_tc = tc;
212 }
213 }
214
215 /* Update app protocol data and hw_info fields with the TLV info */
216 static void
217 qed_dcbx_update_app_info(struct qed_dcbx_results *p_data,
218 struct qed_hwfn *p_hwfn,
219 bool enable,
220 bool update,
221 u8 prio, u8 tc, enum dcbx_protocol_type type)
222 {
223 struct qed_hw_info *p_info = &p_hwfn->hw_info;
224 enum qed_pci_personality personality;
225 enum dcbx_protocol_type id;
226 char *name;
227 int i;
228
229 for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
230 id = qed_dcbx_app_update[i].id;
231
232 if (type != id)
233 continue;
234
235 personality = qed_dcbx_app_update[i].personality;
236 name = qed_dcbx_app_update[i].name;
237
238 qed_dcbx_set_params(p_data, p_info, enable, update,
239 prio, tc, type, personality);
240 }
241 }
242
243 static bool
244 qed_dcbx_get_app_protocol_type(struct qed_hwfn *p_hwfn,
245 u32 app_prio_bitmap,
246 u16 id, enum dcbx_protocol_type *type, bool ieee)
247 {
248 if (qed_dcbx_fcoe_tlv(app_prio_bitmap, id, ieee)) {
249 *type = DCBX_PROTOCOL_FCOE;
250 } else if (qed_dcbx_roce_tlv(app_prio_bitmap, id, ieee)) {
251 *type = DCBX_PROTOCOL_ROCE;
252 } else if (qed_dcbx_iscsi_tlv(app_prio_bitmap, id, ieee)) {
253 *type = DCBX_PROTOCOL_ISCSI;
254 } else if (qed_dcbx_default_tlv(app_prio_bitmap, id, ieee)) {
255 *type = DCBX_PROTOCOL_ETH;
256 } else if (qed_dcbx_roce_v2_tlv(app_prio_bitmap, id, ieee)) {
257 *type = DCBX_PROTOCOL_ROCE_V2;
258 } else {
259 *type = DCBX_MAX_PROTOCOL_TYPE;
260 DP_ERR(p_hwfn,
261 "No action required, App TLV id = 0x%x app_prio_bitmap = 0x%x\n",
262 id, app_prio_bitmap);
263 return false;
264 }
265
266 return true;
267 }
268
269 /* Parse app TLV's to update TC information in hw_info structure for
270 * reconfiguring QM. Get protocol specific data for PF update ramrod command.
271 */
272 static int
273 qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn,
274 struct qed_dcbx_results *p_data,
275 struct dcbx_app_priority_entry *p_tbl,
276 u32 pri_tc_tbl, int count, u8 dcbx_version)
277 {
278 u8 tc, priority_map;
279 enum dcbx_protocol_type type;
280 bool enable, ieee;
281 u16 protocol_id;
282 int priority;
283 int i;
284
285 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Num APP entries = %d\n", count);
286
287 ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE);
288 /* Parse APP TLV */
289 for (i = 0; i < count; i++) {
290 protocol_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
291 DCBX_APP_PROTOCOL_ID);
292 priority_map = QED_MFW_GET_FIELD(p_tbl[i].entry,
293 DCBX_APP_PRI_MAP);
294 priority = ffs(priority_map) - 1;
295 if (priority < 0) {
296 DP_ERR(p_hwfn, "Invalid priority\n");
297 return -EINVAL;
298 }
299
300 tc = QED_DCBX_PRIO2TC(pri_tc_tbl, priority);
301 if (qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
302 protocol_id, &type, ieee)) {
303 /* ETH always have the enable bit reset, as it gets
304 * vlan information per packet. For other protocols,
305 * should be set according to the dcbx_enabled
306 * indication, but we only got here if there was an
307 * app tlv for the protocol, so dcbx must be enabled.
308 */
309 enable = !(type == DCBX_PROTOCOL_ETH);
310
311 qed_dcbx_update_app_info(p_data, p_hwfn, enable, true,
312 priority, tc, type);
313 }
314 }
315
316 /* If RoCE-V2 TLV is not detected, driver need to use RoCE app
317 * data for RoCE-v2 not the default app data.
318 */
319 if (!p_data->arr[DCBX_PROTOCOL_ROCE_V2].update &&
320 p_data->arr[DCBX_PROTOCOL_ROCE].update) {
321 tc = p_data->arr[DCBX_PROTOCOL_ROCE].tc;
322 priority = p_data->arr[DCBX_PROTOCOL_ROCE].priority;
323 qed_dcbx_update_app_info(p_data, p_hwfn, true, true,
324 priority, tc, DCBX_PROTOCOL_ROCE_V2);
325 }
326
327 /* Update ramrod protocol data and hw_info fields
328 * with default info when corresponding APP TLV's are not detected.
329 * The enabled field has a different logic for ethernet as only for
330 * ethernet dcb should disabled by default, as the information arrives
331 * from the OS (unless an explicit app tlv was present).
332 */
333 tc = p_data->arr[DCBX_PROTOCOL_ETH].tc;
334 priority = p_data->arr[DCBX_PROTOCOL_ETH].priority;
335 for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) {
336 if (p_data->arr[type].update)
337 continue;
338
339 enable = !(type == DCBX_PROTOCOL_ETH);
340 qed_dcbx_update_app_info(p_data, p_hwfn, enable, true,
341 priority, tc, type);
342 }
343
344 return 0;
345 }
346
347 /* Parse app TLV's to update TC information in hw_info structure for
348 * reconfiguring QM. Get protocol specific data for PF update ramrod command.
349 */
350 static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn)
351 {
352 struct dcbx_app_priority_feature *p_app;
353 struct dcbx_app_priority_entry *p_tbl;
354 struct qed_dcbx_results data = { 0 };
355 struct dcbx_ets_feature *p_ets;
356 struct qed_hw_info *p_info;
357 u32 pri_tc_tbl, flags;
358 u8 dcbx_version;
359 int num_entries;
360 int rc = 0;
361
362 flags = p_hwfn->p_dcbx_info->operational.flags;
363 dcbx_version = QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION);
364
365 p_app = &p_hwfn->p_dcbx_info->operational.features.app;
366 p_tbl = p_app->app_pri_tbl;
367
368 p_ets = &p_hwfn->p_dcbx_info->operational.features.ets;
369 pri_tc_tbl = p_ets->pri_tc_tbl[0];
370
371 p_info = &p_hwfn->hw_info;
372 num_entries = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES);
373
374 rc = qed_dcbx_process_tlv(p_hwfn, &data, p_tbl, pri_tc_tbl,
375 num_entries, dcbx_version);
376 if (rc)
377 return rc;
378
379 p_info->num_tc = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_MAX_TCS);
380 data.pf_id = p_hwfn->rel_pf_id;
381 data.dcbx_enabled = !!dcbx_version;
382
383 qed_dcbx_dp_protocol(p_hwfn, &data);
384
385 memcpy(&p_hwfn->p_dcbx_info->results, &data,
386 sizeof(struct qed_dcbx_results));
387
388 return 0;
389 }
390
391 static int
392 qed_dcbx_copy_mib(struct qed_hwfn *p_hwfn,
393 struct qed_ptt *p_ptt,
394 struct qed_dcbx_mib_meta_data *p_data,
395 enum qed_mib_read_type type)
396 {
397 u32 prefix_seq_num, suffix_seq_num;
398 int read_count = 0;
399 int rc = 0;
400
401 /* The data is considered to be valid only if both sequence numbers are
402 * the same.
403 */
404 do {
405 if (type == QED_DCBX_REMOTE_LLDP_MIB) {
406 qed_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote,
407 p_data->addr, p_data->size);
408 prefix_seq_num = p_data->lldp_remote->prefix_seq_num;
409 suffix_seq_num = p_data->lldp_remote->suffix_seq_num;
410 } else {
411 qed_memcpy_from(p_hwfn, p_ptt, p_data->mib,
412 p_data->addr, p_data->size);
413 prefix_seq_num = p_data->mib->prefix_seq_num;
414 suffix_seq_num = p_data->mib->suffix_seq_num;
415 }
416 read_count++;
417
418 DP_VERBOSE(p_hwfn,
419 QED_MSG_DCB,
420 "mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n",
421 type, read_count, prefix_seq_num, suffix_seq_num);
422 } while ((prefix_seq_num != suffix_seq_num) &&
423 (read_count < QED_DCBX_MAX_MIB_READ_TRY));
424
425 if (read_count >= QED_DCBX_MAX_MIB_READ_TRY) {
426 DP_ERR(p_hwfn,
427 "MIB read err, mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n",
428 type, read_count, prefix_seq_num, suffix_seq_num);
429 rc = -EIO;
430 }
431
432 return rc;
433 }
434
435 static void
436 qed_dcbx_get_priority_info(struct qed_hwfn *p_hwfn,
437 struct qed_dcbx_app_prio *p_prio,
438 struct qed_dcbx_results *p_results)
439 {
440 u8 val;
441
442 p_prio->roce = QED_DCBX_INVALID_PRIORITY;
443 p_prio->roce_v2 = QED_DCBX_INVALID_PRIORITY;
444 p_prio->iscsi = QED_DCBX_INVALID_PRIORITY;
445 p_prio->fcoe = QED_DCBX_INVALID_PRIORITY;
446
447 if (p_results->arr[DCBX_PROTOCOL_ROCE].update &&
448 p_results->arr[DCBX_PROTOCOL_ROCE].enable)
449 p_prio->roce = p_results->arr[DCBX_PROTOCOL_ROCE].priority;
450
451 if (p_results->arr[DCBX_PROTOCOL_ROCE_V2].update &&
452 p_results->arr[DCBX_PROTOCOL_ROCE_V2].enable) {
453 val = p_results->arr[DCBX_PROTOCOL_ROCE_V2].priority;
454 p_prio->roce_v2 = val;
455 }
456
457 if (p_results->arr[DCBX_PROTOCOL_ISCSI].update &&
458 p_results->arr[DCBX_PROTOCOL_ISCSI].enable)
459 p_prio->iscsi = p_results->arr[DCBX_PROTOCOL_ISCSI].priority;
460
461 if (p_results->arr[DCBX_PROTOCOL_FCOE].update &&
462 p_results->arr[DCBX_PROTOCOL_FCOE].enable)
463 p_prio->fcoe = p_results->arr[DCBX_PROTOCOL_FCOE].priority;
464
465 if (p_results->arr[DCBX_PROTOCOL_ETH].update &&
466 p_results->arr[DCBX_PROTOCOL_ETH].enable)
467 p_prio->eth = p_results->arr[DCBX_PROTOCOL_ETH].priority;
468
469 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
470 "Priorities: iscsi %d, roce %d, roce v2 %d, fcoe %d, eth %d\n",
471 p_prio->iscsi, p_prio->roce, p_prio->roce_v2, p_prio->fcoe,
472 p_prio->eth);
473 }
474
475 static void
476 qed_dcbx_get_app_data(struct qed_hwfn *p_hwfn,
477 struct dcbx_app_priority_feature *p_app,
478 struct dcbx_app_priority_entry *p_tbl,
479 struct qed_dcbx_params *p_params, bool ieee)
480 {
481 struct qed_app_entry *entry;
482 u8 pri_map;
483 int i;
484
485 p_params->app_willing = QED_MFW_GET_FIELD(p_app->flags,
486 DCBX_APP_WILLING);
487 p_params->app_valid = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ENABLED);
488 p_params->app_error = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR);
489 p_params->num_app_entries = QED_MFW_GET_FIELD(p_app->flags,
490 DCBX_APP_NUM_ENTRIES);
491 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
492 entry = &p_params->app_entry[i];
493 if (ieee) {
494 u8 sf_ieee;
495 u32 val;
496
497 sf_ieee = QED_MFW_GET_FIELD(p_tbl[i].entry,
498 DCBX_APP_SF_IEEE);
499 switch (sf_ieee) {
500 case DCBX_APP_SF_IEEE_RESERVED:
501 /* Old MFW */
502 val = QED_MFW_GET_FIELD(p_tbl[i].entry,
503 DCBX_APP_SF);
504 entry->sf_ieee = val ?
505 QED_DCBX_SF_IEEE_TCP_UDP_PORT :
506 QED_DCBX_SF_IEEE_ETHTYPE;
507 break;
508 case DCBX_APP_SF_IEEE_ETHTYPE:
509 entry->sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
510 break;
511 case DCBX_APP_SF_IEEE_TCP_PORT:
512 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
513 break;
514 case DCBX_APP_SF_IEEE_UDP_PORT:
515 entry->sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
516 break;
517 case DCBX_APP_SF_IEEE_TCP_UDP_PORT:
518 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
519 break;
520 }
521 } else {
522 entry->ethtype = !(QED_MFW_GET_FIELD(p_tbl[i].entry,
523 DCBX_APP_SF));
524 }
525
526 pri_map = QED_MFW_GET_FIELD(p_tbl[i].entry, DCBX_APP_PRI_MAP);
527 entry->prio = ffs(pri_map) - 1;
528 entry->proto_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
529 DCBX_APP_PROTOCOL_ID);
530 qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
531 entry->proto_id,
532 &entry->proto_type, ieee);
533 }
534
535 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
536 "APP params: willing %d, valid %d error = %d\n",
537 p_params->app_willing, p_params->app_valid,
538 p_params->app_error);
539 }
540
541 static void
542 qed_dcbx_get_pfc_data(struct qed_hwfn *p_hwfn,
543 u32 pfc, struct qed_dcbx_params *p_params)
544 {
545 u8 pfc_map;
546
547 p_params->pfc.willing = QED_MFW_GET_FIELD(pfc, DCBX_PFC_WILLING);
548 p_params->pfc.max_tc = QED_MFW_GET_FIELD(pfc, DCBX_PFC_CAPS);
549 p_params->pfc.enabled = QED_MFW_GET_FIELD(pfc, DCBX_PFC_ENABLED);
550 pfc_map = QED_MFW_GET_FIELD(pfc, DCBX_PFC_PRI_EN_BITMAP);
551 p_params->pfc.prio[0] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_0);
552 p_params->pfc.prio[1] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_1);
553 p_params->pfc.prio[2] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_2);
554 p_params->pfc.prio[3] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_3);
555 p_params->pfc.prio[4] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_4);
556 p_params->pfc.prio[5] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_5);
557 p_params->pfc.prio[6] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_6);
558 p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7);
559
560 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
561 "PFC params: willing %d, pfc_bitmap %d\n",
562 p_params->pfc.willing, pfc_map);
563 }
564
565 static void
566 qed_dcbx_get_ets_data(struct qed_hwfn *p_hwfn,
567 struct dcbx_ets_feature *p_ets,
568 struct qed_dcbx_params *p_params)
569 {
570 u32 bw_map[2], tsa_map[2], pri_map;
571 int i;
572
573 p_params->ets_willing = QED_MFW_GET_FIELD(p_ets->flags,
574 DCBX_ETS_WILLING);
575 p_params->ets_enabled = QED_MFW_GET_FIELD(p_ets->flags,
576 DCBX_ETS_ENABLED);
577 p_params->ets_cbs = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_CBS);
578 p_params->max_ets_tc = QED_MFW_GET_FIELD(p_ets->flags,
579 DCBX_ETS_MAX_TCS);
580 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
581 "ETS params: willing %d, ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n",
582 p_params->ets_willing,
583 p_params->ets_cbs,
584 p_ets->pri_tc_tbl[0], p_params->max_ets_tc);
585
586 if (p_params->ets_enabled && !p_params->max_ets_tc) {
587 p_params->max_ets_tc = QED_MAX_PFC_PRIORITIES;
588 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
589 "ETS params: max_ets_tc is forced to %d\n",
590 p_params->max_ets_tc);
591 }
592
593 /* 8 bit tsa and bw data corresponding to each of the 8 TC's are
594 * encoded in a type u32 array of size 2.
595 */
596 bw_map[0] = be32_to_cpu(p_ets->tc_bw_tbl[0]);
597 bw_map[1] = be32_to_cpu(p_ets->tc_bw_tbl[1]);
598 tsa_map[0] = be32_to_cpu(p_ets->tc_tsa_tbl[0]);
599 tsa_map[1] = be32_to_cpu(p_ets->tc_tsa_tbl[1]);
600 pri_map = p_ets->pri_tc_tbl[0];
601 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
602 p_params->ets_tc_bw_tbl[i] = ((u8 *)bw_map)[i];
603 p_params->ets_tc_tsa_tbl[i] = ((u8 *)tsa_map)[i];
604 p_params->ets_pri_tc_tbl[i] = QED_DCBX_PRIO2TC(pri_map, i);
605 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
606 "elem %d bw_tbl %x tsa_tbl %x\n",
607 i, p_params->ets_tc_bw_tbl[i],
608 p_params->ets_tc_tsa_tbl[i]);
609 }
610 }
611
612 static void
613 qed_dcbx_get_common_params(struct qed_hwfn *p_hwfn,
614 struct dcbx_app_priority_feature *p_app,
615 struct dcbx_app_priority_entry *p_tbl,
616 struct dcbx_ets_feature *p_ets,
617 u32 pfc, struct qed_dcbx_params *p_params, bool ieee)
618 {
619 qed_dcbx_get_app_data(p_hwfn, p_app, p_tbl, p_params, ieee);
620 qed_dcbx_get_ets_data(p_hwfn, p_ets, p_params);
621 qed_dcbx_get_pfc_data(p_hwfn, pfc, p_params);
622 }
623
624 static void
625 qed_dcbx_get_local_params(struct qed_hwfn *p_hwfn,
626 struct qed_ptt *p_ptt, struct qed_dcbx_get *params)
627 {
628 struct dcbx_features *p_feat;
629
630 p_feat = &p_hwfn->p_dcbx_info->local_admin.features;
631 qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
632 p_feat->app.app_pri_tbl, &p_feat->ets,
633 p_feat->pfc, &params->local.params, false);
634 params->local.valid = true;
635 }
636
637 static void
638 qed_dcbx_get_remote_params(struct qed_hwfn *p_hwfn,
639 struct qed_ptt *p_ptt, struct qed_dcbx_get *params)
640 {
641 struct dcbx_features *p_feat;
642
643 p_feat = &p_hwfn->p_dcbx_info->remote.features;
644 qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
645 p_feat->app.app_pri_tbl, &p_feat->ets,
646 p_feat->pfc, &params->remote.params, false);
647 params->remote.valid = true;
648 }
649
650 static void
651 qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn,
652 struct qed_ptt *p_ptt,
653 struct qed_dcbx_get *params)
654 {
655 struct qed_dcbx_operational_params *p_operational;
656 struct qed_dcbx_results *p_results;
657 struct dcbx_features *p_feat;
658 bool enabled, err;
659 u32 flags;
660 bool val;
661
662 flags = p_hwfn->p_dcbx_info->operational.flags;
663
664 /* If DCBx version is non zero, then negotiation
665 * was successfuly performed
666 */
667 p_operational = &params->operational;
668 enabled = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) !=
669 DCBX_CONFIG_VERSION_DISABLED);
670 if (!enabled) {
671 p_operational->enabled = enabled;
672 p_operational->valid = false;
673 return;
674 }
675
676 p_feat = &p_hwfn->p_dcbx_info->operational.features;
677 p_results = &p_hwfn->p_dcbx_info->results;
678
679 val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
680 DCBX_CONFIG_VERSION_IEEE);
681 p_operational->ieee = val;
682 val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
683 DCBX_CONFIG_VERSION_CEE);
684 p_operational->cee = val;
685
686 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Version support: ieee %d, cee %d\n",
687 p_operational->ieee, p_operational->cee);
688
689 qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
690 p_feat->app.app_pri_tbl, &p_feat->ets,
691 p_feat->pfc, &params->operational.params,
692 p_operational->ieee);
693 qed_dcbx_get_priority_info(p_hwfn, &p_operational->app_prio, p_results);
694 err = QED_MFW_GET_FIELD(p_feat->app.flags, DCBX_APP_ERROR);
695 p_operational->err = err;
696 p_operational->enabled = enabled;
697 p_operational->valid = true;
698 }
699
700 static void
701 qed_dcbx_get_local_lldp_params(struct qed_hwfn *p_hwfn,
702 struct qed_ptt *p_ptt,
703 struct qed_dcbx_get *params)
704 {
705 struct lldp_config_params_s *p_local;
706
707 p_local = &p_hwfn->p_dcbx_info->lldp_local[LLDP_NEAREST_BRIDGE];
708
709 memcpy(params->lldp_local.local_chassis_id, p_local->local_chassis_id,
710 ARRAY_SIZE(p_local->local_chassis_id));
711 memcpy(params->lldp_local.local_port_id, p_local->local_port_id,
712 ARRAY_SIZE(p_local->local_port_id));
713 }
714
715 static void
716 qed_dcbx_get_remote_lldp_params(struct qed_hwfn *p_hwfn,
717 struct qed_ptt *p_ptt,
718 struct qed_dcbx_get *params)
719 {
720 struct lldp_status_params_s *p_remote;
721
722 p_remote = &p_hwfn->p_dcbx_info->lldp_remote[LLDP_NEAREST_BRIDGE];
723
724 memcpy(params->lldp_remote.peer_chassis_id, p_remote->peer_chassis_id,
725 ARRAY_SIZE(p_remote->peer_chassis_id));
726 memcpy(params->lldp_remote.peer_port_id, p_remote->peer_port_id,
727 ARRAY_SIZE(p_remote->peer_port_id));
728 }
729
730 static int
731 qed_dcbx_get_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
732 struct qed_dcbx_get *p_params,
733 enum qed_mib_read_type type)
734 {
735 switch (type) {
736 case QED_DCBX_REMOTE_MIB:
737 qed_dcbx_get_remote_params(p_hwfn, p_ptt, p_params);
738 break;
739 case QED_DCBX_LOCAL_MIB:
740 qed_dcbx_get_local_params(p_hwfn, p_ptt, p_params);
741 break;
742 case QED_DCBX_OPERATIONAL_MIB:
743 qed_dcbx_get_operational_params(p_hwfn, p_ptt, p_params);
744 break;
745 case QED_DCBX_REMOTE_LLDP_MIB:
746 qed_dcbx_get_remote_lldp_params(p_hwfn, p_ptt, p_params);
747 break;
748 case QED_DCBX_LOCAL_LLDP_MIB:
749 qed_dcbx_get_local_lldp_params(p_hwfn, p_ptt, p_params);
750 break;
751 default:
752 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
753 return -EINVAL;
754 }
755
756 return 0;
757 }
758
759 static int
760 qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
761 {
762 struct qed_dcbx_mib_meta_data data;
763 int rc = 0;
764
765 memset(&data, 0, sizeof(data));
766 data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
767 lldp_config_params);
768 data.lldp_local = p_hwfn->p_dcbx_info->lldp_local;
769 data.size = sizeof(struct lldp_config_params_s);
770 qed_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size);
771
772 return rc;
773 }
774
775 static int
776 qed_dcbx_read_remote_lldp_mib(struct qed_hwfn *p_hwfn,
777 struct qed_ptt *p_ptt,
778 enum qed_mib_read_type type)
779 {
780 struct qed_dcbx_mib_meta_data data;
781 int rc = 0;
782
783 memset(&data, 0, sizeof(data));
784 data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
785 lldp_status_params);
786 data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote;
787 data.size = sizeof(struct lldp_status_params_s);
788 rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
789
790 return rc;
791 }
792
793 static int
794 qed_dcbx_read_operational_mib(struct qed_hwfn *p_hwfn,
795 struct qed_ptt *p_ptt,
796 enum qed_mib_read_type type)
797 {
798 struct qed_dcbx_mib_meta_data data;
799 int rc = 0;
800
801 memset(&data, 0, sizeof(data));
802 data.addr = p_hwfn->mcp_info->port_addr +
803 offsetof(struct public_port, operational_dcbx_mib);
804 data.mib = &p_hwfn->p_dcbx_info->operational;
805 data.size = sizeof(struct dcbx_mib);
806 rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
807
808 return rc;
809 }
810
811 static int
812 qed_dcbx_read_remote_mib(struct qed_hwfn *p_hwfn,
813 struct qed_ptt *p_ptt, enum qed_mib_read_type type)
814 {
815 struct qed_dcbx_mib_meta_data data;
816 int rc = 0;
817
818 memset(&data, 0, sizeof(data));
819 data.addr = p_hwfn->mcp_info->port_addr +
820 offsetof(struct public_port, remote_dcbx_mib);
821 data.mib = &p_hwfn->p_dcbx_info->remote;
822 data.size = sizeof(struct dcbx_mib);
823 rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
824
825 return rc;
826 }
827
828 static int
829 qed_dcbx_read_local_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
830 {
831 struct qed_dcbx_mib_meta_data data;
832 int rc = 0;
833
834 memset(&data, 0, sizeof(data));
835 data.addr = p_hwfn->mcp_info->port_addr +
836 offsetof(struct public_port, local_admin_dcbx_mib);
837 data.local_admin = &p_hwfn->p_dcbx_info->local_admin;
838 data.size = sizeof(struct dcbx_local_params);
839 qed_memcpy_from(p_hwfn, p_ptt, data.local_admin, data.addr, data.size);
840
841 return rc;
842 }
843
844 static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
845 struct qed_ptt *p_ptt, enum qed_mib_read_type type)
846 {
847 int rc = -EINVAL;
848
849 switch (type) {
850 case QED_DCBX_OPERATIONAL_MIB:
851 rc = qed_dcbx_read_operational_mib(p_hwfn, p_ptt, type);
852 break;
853 case QED_DCBX_REMOTE_MIB:
854 rc = qed_dcbx_read_remote_mib(p_hwfn, p_ptt, type);
855 break;
856 case QED_DCBX_LOCAL_MIB:
857 rc = qed_dcbx_read_local_mib(p_hwfn, p_ptt);
858 break;
859 case QED_DCBX_REMOTE_LLDP_MIB:
860 rc = qed_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type);
861 break;
862 case QED_DCBX_LOCAL_LLDP_MIB:
863 rc = qed_dcbx_read_local_lldp_mib(p_hwfn, p_ptt);
864 break;
865 default:
866 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
867 }
868
869 return rc;
870 }
871
872 void qed_dcbx_aen(struct qed_hwfn *hwfn, u32 mib_type)
873 {
874 struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
875 void *cookie = hwfn->cdev->ops_cookie;
876
877 if (cookie && op->dcbx_aen)
878 op->dcbx_aen(cookie, &hwfn->p_dcbx_info->get, mib_type);
879 }
880
881 /* Read updated MIB.
882 * Reconfigure QM and invoke PF update ramrod command if operational MIB
883 * change is detected.
884 */
885 int
886 qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn,
887 struct qed_ptt *p_ptt, enum qed_mib_read_type type)
888 {
889 int rc = 0;
890
891 rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
892 if (rc)
893 return rc;
894
895 if (type == QED_DCBX_OPERATIONAL_MIB) {
896 rc = qed_dcbx_process_mib_info(p_hwfn);
897 if (!rc) {
898 /* reconfigure tcs of QM queues according
899 * to negotiation results
900 */
901 qed_qm_reconf(p_hwfn, p_ptt);
902
903 /* update storm FW with negotiation results */
904 qed_sp_pf_update(p_hwfn);
905 }
906 }
907 qed_dcbx_get_params(p_hwfn, p_ptt, &p_hwfn->p_dcbx_info->get, type);
908 qed_dcbx_aen(p_hwfn, type);
909
910 return rc;
911 }
912
913 int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn)
914 {
915 int rc = 0;
916
917 p_hwfn->p_dcbx_info = kzalloc(sizeof(*p_hwfn->p_dcbx_info), GFP_KERNEL);
918 if (!p_hwfn->p_dcbx_info)
919 rc = -ENOMEM;
920
921 return rc;
922 }
923
924 void qed_dcbx_info_free(struct qed_hwfn *p_hwfn,
925 struct qed_dcbx_info *p_dcbx_info)
926 {
927 kfree(p_hwfn->p_dcbx_info);
928 }
929
930 static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
931 struct qed_dcbx_results *p_src,
932 enum dcbx_protocol_type type)
933 {
934 p_data->dcb_enable_flag = p_src->arr[type].enable;
935 p_data->dcb_priority = p_src->arr[type].priority;
936 p_data->dcb_tc = p_src->arr[type].tc;
937 }
938
939 /* Set pf update ramrod command params */
940 void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
941 struct pf_update_ramrod_data *p_dest)
942 {
943 struct protocol_dcb_data *p_dcb_data;
944 bool update_flag = false;
945
946 p_dest->pf_id = p_src->pf_id;
947
948 update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update;
949 p_dest->update_fcoe_dcb_data_flag = update_flag;
950
951 update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update;
952 p_dest->update_roce_dcb_data_flag = update_flag;
953 update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update;
954 p_dest->update_roce_dcb_data_flag = update_flag;
955
956 update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update;
957 p_dest->update_iscsi_dcb_data_flag = update_flag;
958 update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
959 p_dest->update_eth_dcb_data_flag = update_flag;
960
961 p_dcb_data = &p_dest->fcoe_dcb_data;
962 qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE);
963 p_dcb_data = &p_dest->roce_dcb_data;
964
965 if (p_src->arr[DCBX_PROTOCOL_ROCE].update)
966 qed_dcbx_update_protocol_data(p_dcb_data, p_src,
967 DCBX_PROTOCOL_ROCE);
968 if (p_src->arr[DCBX_PROTOCOL_ROCE_V2].update)
969 qed_dcbx_update_protocol_data(p_dcb_data, p_src,
970 DCBX_PROTOCOL_ROCE_V2);
971
972 p_dcb_data = &p_dest->iscsi_dcb_data;
973 qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI);
974 p_dcb_data = &p_dest->eth_dcb_data;
975 qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
976 }
977
978 #ifdef CONFIG_DCB
979 static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn,
980 struct qed_dcbx_get *p_get,
981 enum qed_mib_read_type type)
982 {
983 struct qed_ptt *p_ptt;
984 int rc;
985
986 if (IS_VF(p_hwfn->cdev))
987 return -EINVAL;
988
989 p_ptt = qed_ptt_acquire(p_hwfn);
990 if (!p_ptt)
991 return -EBUSY;
992
993 rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
994 if (rc)
995 goto out;
996
997 rc = qed_dcbx_get_params(p_hwfn, p_ptt, p_get, type);
998
999 out:
1000 qed_ptt_release(p_hwfn, p_ptt);
1001 return rc;
1002 }
1003
1004 static void
1005 qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn,
1006 u32 *pfc, struct qed_dcbx_params *p_params)
1007 {
1008 u8 pfc_map = 0;
1009 int i;
1010
1011 *pfc &= ~DCBX_PFC_ERROR_MASK;
1012
1013 if (p_params->pfc.willing)
1014 *pfc |= DCBX_PFC_WILLING_MASK;
1015 else
1016 *pfc &= ~DCBX_PFC_WILLING_MASK;
1017
1018 if (p_params->pfc.enabled)
1019 *pfc |= DCBX_PFC_ENABLED_MASK;
1020 else
1021 *pfc &= ~DCBX_PFC_ENABLED_MASK;
1022
1023 *pfc &= ~DCBX_PFC_CAPS_MASK;
1024 *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;
1025
1026 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1027 if (p_params->pfc.prio[i])
1028 pfc_map |= BIT(i);
1029
1030 *pfc &= ~DCBX_PFC_PRI_EN_BITMAP_MASK;
1031 *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);
1032
1033 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "pfc = 0x%x\n", *pfc);
1034 }
1035
1036 static void
1037 qed_dcbx_set_ets_data(struct qed_hwfn *p_hwfn,
1038 struct dcbx_ets_feature *p_ets,
1039 struct qed_dcbx_params *p_params)
1040 {
1041 u8 *bw_map, *tsa_map;
1042 u32 val;
1043 int i;
1044
1045 if (p_params->ets_willing)
1046 p_ets->flags |= DCBX_ETS_WILLING_MASK;
1047 else
1048 p_ets->flags &= ~DCBX_ETS_WILLING_MASK;
1049
1050 if (p_params->ets_cbs)
1051 p_ets->flags |= DCBX_ETS_CBS_MASK;
1052 else
1053 p_ets->flags &= ~DCBX_ETS_CBS_MASK;
1054
1055 if (p_params->ets_enabled)
1056 p_ets->flags |= DCBX_ETS_ENABLED_MASK;
1057 else
1058 p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;
1059
1060 p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
1061 p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;
1062
1063 bw_map = (u8 *)&p_ets->tc_bw_tbl[0];
1064 tsa_map = (u8 *)&p_ets->tc_tsa_tbl[0];
1065 p_ets->pri_tc_tbl[0] = 0;
1066 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
1067 bw_map[i] = p_params->ets_tc_bw_tbl[i];
1068 tsa_map[i] = p_params->ets_tc_tsa_tbl[i];
1069 /* Copy the priority value to the corresponding 4 bits in the
1070 * traffic class table.
1071 */
1072 val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4));
1073 p_ets->pri_tc_tbl[0] |= val;
1074 }
1075 for (i = 0; i < 2; i++) {
1076 p_ets->tc_bw_tbl[i] = cpu_to_be32(p_ets->tc_bw_tbl[i]);
1077 p_ets->tc_tsa_tbl[i] = cpu_to_be32(p_ets->tc_tsa_tbl[i]);
1078 }
1079 }
1080
1081 static void
1082 qed_dcbx_set_app_data(struct qed_hwfn *p_hwfn,
1083 struct dcbx_app_priority_feature *p_app,
1084 struct qed_dcbx_params *p_params, bool ieee)
1085 {
1086 u32 *entry;
1087 int i;
1088
1089 if (p_params->app_willing)
1090 p_app->flags |= DCBX_APP_WILLING_MASK;
1091 else
1092 p_app->flags &= ~DCBX_APP_WILLING_MASK;
1093
1094 if (p_params->app_valid)
1095 p_app->flags |= DCBX_APP_ENABLED_MASK;
1096 else
1097 p_app->flags &= ~DCBX_APP_ENABLED_MASK;
1098
1099 p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
1100 p_app->flags |= (u32)p_params->num_app_entries <<
1101 DCBX_APP_NUM_ENTRIES_SHIFT;
1102
1103 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
1104 entry = &p_app->app_pri_tbl[i].entry;
1105 *entry = 0;
1106 if (ieee) {
1107 *entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK);
1108 switch (p_params->app_entry[i].sf_ieee) {
1109 case QED_DCBX_SF_IEEE_ETHTYPE:
1110 *entry |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
1111 DCBX_APP_SF_IEEE_SHIFT);
1112 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1113 DCBX_APP_SF_SHIFT);
1114 break;
1115 case QED_DCBX_SF_IEEE_TCP_PORT:
1116 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
1117 DCBX_APP_SF_IEEE_SHIFT);
1118 *entry |= ((u32)DCBX_APP_SF_PORT <<
1119 DCBX_APP_SF_SHIFT);
1120 break;
1121 case QED_DCBX_SF_IEEE_UDP_PORT:
1122 *entry |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
1123 DCBX_APP_SF_IEEE_SHIFT);
1124 *entry |= ((u32)DCBX_APP_SF_PORT <<
1125 DCBX_APP_SF_SHIFT);
1126 break;
1127 case QED_DCBX_SF_IEEE_TCP_UDP_PORT:
1128 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
1129 DCBX_APP_SF_IEEE_SHIFT);
1130 *entry |= ((u32)DCBX_APP_SF_PORT <<
1131 DCBX_APP_SF_SHIFT);
1132 break;
1133 }
1134 } else {
1135 *entry &= ~DCBX_APP_SF_MASK;
1136 if (p_params->app_entry[i].ethtype)
1137 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1138 DCBX_APP_SF_SHIFT);
1139 else
1140 *entry |= ((u32)DCBX_APP_SF_PORT <<
1141 DCBX_APP_SF_SHIFT);
1142 }
1143
1144 *entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
1145 *entry |= ((u32)p_params->app_entry[i].proto_id <<
1146 DCBX_APP_PROTOCOL_ID_SHIFT);
1147 *entry &= ~DCBX_APP_PRI_MAP_MASK;
1148 *entry |= ((u32)(p_params->app_entry[i].prio) <<
1149 DCBX_APP_PRI_MAP_SHIFT);
1150 }
1151 }
1152
1153 static void
1154 qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn,
1155 struct dcbx_local_params *local_admin,
1156 struct qed_dcbx_set *params)
1157 {
1158 bool ieee = false;
1159
1160 local_admin->flags = 0;
1161 memcpy(&local_admin->features,
1162 &p_hwfn->p_dcbx_info->operational.features,
1163 sizeof(local_admin->features));
1164
1165 if (params->enabled) {
1166 local_admin->config = params->ver_num;
1167 ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
1168 } else {
1169 local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
1170 }
1171
1172 if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG)
1173 qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
1174 &params->config.params);
1175
1176 if (params->override_flags & QED_DCBX_OVERRIDE_ETS_CFG)
1177 qed_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
1178 &params->config.params);
1179
1180 if (params->override_flags & QED_DCBX_OVERRIDE_APP_CFG)
1181 qed_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
1182 &params->config.params, ieee);
1183 }
1184
1185 int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
1186 struct qed_dcbx_set *params, bool hw_commit)
1187 {
1188 struct dcbx_local_params local_admin;
1189 struct qed_dcbx_mib_meta_data data;
1190 u32 resp = 0, param = 0;
1191 int rc = 0;
1192
1193 if (!hw_commit) {
1194 memcpy(&p_hwfn->p_dcbx_info->set, params,
1195 sizeof(struct qed_dcbx_set));
1196 return 0;
1197 }
1198
1199 /* clear set-parmas cache */
1200 memset(&p_hwfn->p_dcbx_info->set, 0, sizeof(p_hwfn->p_dcbx_info->set));
1201
1202 memset(&local_admin, 0, sizeof(local_admin));
1203 qed_dcbx_set_local_params(p_hwfn, &local_admin, params);
1204
1205 data.addr = p_hwfn->mcp_info->port_addr +
1206 offsetof(struct public_port, local_admin_dcbx_mib);
1207 data.local_admin = &local_admin;
1208 data.size = sizeof(struct dcbx_local_params);
1209 qed_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);
1210
1211 rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
1212 1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, &param);
1213 if (rc)
1214 DP_NOTICE(p_hwfn, "Failed to send DCBX update request\n");
1215
1216 return rc;
1217 }
1218
1219 int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
1220 struct qed_dcbx_set *params)
1221 {
1222 struct qed_dcbx_get *dcbx_info;
1223 int rc;
1224
1225 if (p_hwfn->p_dcbx_info->set.config.valid) {
1226 memcpy(params, &p_hwfn->p_dcbx_info->set,
1227 sizeof(struct qed_dcbx_set));
1228 return 0;
1229 }
1230
1231 dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
1232 if (!dcbx_info)
1233 return -ENOMEM;
1234
1235 memset(dcbx_info, 0, sizeof(*dcbx_info));
1236 rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
1237 if (rc) {
1238 kfree(dcbx_info);
1239 return rc;
1240 }
1241
1242 p_hwfn->p_dcbx_info->set.override_flags = 0;
1243 p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
1244 if (dcbx_info->operational.cee)
1245 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1246 if (dcbx_info->operational.ieee)
1247 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1248
1249 p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
1250 memcpy(&p_hwfn->p_dcbx_info->set.config.params,
1251 &dcbx_info->operational.params,
1252 sizeof(struct qed_dcbx_admin_params));
1253 p_hwfn->p_dcbx_info->set.config.valid = true;
1254
1255 memcpy(params, &p_hwfn->p_dcbx_info->set, sizeof(struct qed_dcbx_set));
1256
1257 kfree(dcbx_info);
1258
1259 return 0;
1260 }
1261
1262 static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
1263 enum qed_mib_read_type type)
1264 {
1265 struct qed_dcbx_get *dcbx_info;
1266
1267 dcbx_info = kmalloc(sizeof(*dcbx_info), GFP_ATOMIC);
1268 if (!dcbx_info)
1269 return NULL;
1270
1271 memset(dcbx_info, 0, sizeof(*dcbx_info));
1272 if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
1273 kfree(dcbx_info);
1274 return NULL;
1275 }
1276
1277 if ((type == QED_DCBX_OPERATIONAL_MIB) &&
1278 !dcbx_info->operational.enabled) {
1279 DP_INFO(hwfn, "DCBX is not enabled/operational\n");
1280 kfree(dcbx_info);
1281 return NULL;
1282 }
1283
1284 return dcbx_info;
1285 }
1286
1287 static u8 qed_dcbnl_getstate(struct qed_dev *cdev)
1288 {
1289 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1290 struct qed_dcbx_get *dcbx_info;
1291 bool enabled;
1292
1293 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1294 if (!dcbx_info)
1295 return 0;
1296
1297 enabled = dcbx_info->operational.enabled;
1298 DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled);
1299 kfree(dcbx_info);
1300
1301 return enabled;
1302 }
1303
1304 static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state)
1305 {
1306 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1307 struct qed_dcbx_set dcbx_set;
1308 struct qed_ptt *ptt;
1309 int rc;
1310
1311 DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state);
1312
1313 memset(&dcbx_set, 0, sizeof(dcbx_set));
1314 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1315 if (rc)
1316 return 1;
1317
1318 dcbx_set.enabled = !!state;
1319
1320 ptt = qed_ptt_acquire(hwfn);
1321 if (!ptt)
1322 return 1;
1323
1324 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1325
1326 qed_ptt_release(hwfn, ptt);
1327
1328 return rc ? 1 : 0;
1329 }
1330
1331 static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type,
1332 u8 *pgid, u8 *bw_pct, u8 *up_map)
1333 {
1334 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1335 struct qed_dcbx_get *dcbx_info;
1336
1337 DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc);
1338 *prio_type = *pgid = *bw_pct = *up_map = 0;
1339 if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1340 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1341 return;
1342 }
1343
1344 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1345 if (!dcbx_info)
1346 return;
1347
1348 *pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc];
1349 kfree(dcbx_info);
1350 }
1351
1352 static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct)
1353 {
1354 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1355 struct qed_dcbx_get *dcbx_info;
1356
1357 *bw_pct = 0;
1358 DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid);
1359 if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1360 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1361 return;
1362 }
1363
1364 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1365 if (!dcbx_info)
1366 return;
1367
1368 *bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid];
1369 DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct);
1370 kfree(dcbx_info);
1371 }
1372
1373 static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio,
1374 u8 *bwg_id, u8 *bw_pct, u8 *up_map)
1375 {
1376 DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1377 *prio = *bwg_id = *bw_pct = *up_map = 0;
1378 }
1379
1380 static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev,
1381 int bwg_id, u8 *bw_pct)
1382 {
1383 DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1384 *bw_pct = 0;
1385 }
1386
1387 static void qed_dcbnl_getpfccfg(struct qed_dev *cdev,
1388 int priority, u8 *setting)
1389 {
1390 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1391 struct qed_dcbx_get *dcbx_info;
1392
1393 DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority);
1394 if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1395 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1396 return;
1397 }
1398
1399 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1400 if (!dcbx_info)
1401 return;
1402
1403 *setting = dcbx_info->operational.params.pfc.prio[priority];
1404 DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting);
1405 kfree(dcbx_info);
1406 }
1407
1408 static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting)
1409 {
1410 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1411 struct qed_dcbx_set dcbx_set;
1412 struct qed_ptt *ptt;
1413 int rc;
1414
1415 DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n",
1416 priority, setting);
1417 if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1418 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1419 return;
1420 }
1421
1422 memset(&dcbx_set, 0, sizeof(dcbx_set));
1423 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1424 if (rc)
1425 return;
1426
1427 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1428 dcbx_set.config.params.pfc.prio[priority] = !!setting;
1429
1430 ptt = qed_ptt_acquire(hwfn);
1431 if (!ptt)
1432 return;
1433
1434 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1435
1436 qed_ptt_release(hwfn, ptt);
1437 }
1438
1439 static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap)
1440 {
1441 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1442 struct qed_dcbx_get *dcbx_info;
1443 int rc = 0;
1444
1445 DP_VERBOSE(hwfn, QED_MSG_DCB, "capid = %d\n", capid);
1446 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1447 if (!dcbx_info)
1448 return 1;
1449
1450 switch (capid) {
1451 case DCB_CAP_ATTR_PG:
1452 case DCB_CAP_ATTR_PFC:
1453 case DCB_CAP_ATTR_UP2TC:
1454 case DCB_CAP_ATTR_GSP:
1455 *cap = true;
1456 break;
1457 case DCB_CAP_ATTR_PG_TCS:
1458 case DCB_CAP_ATTR_PFC_TCS:
1459 *cap = 0x80;
1460 break;
1461 case DCB_CAP_ATTR_DCBX:
1462 *cap = (DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE |
1463 DCB_CAP_DCBX_VER_IEEE);
1464 break;
1465 default:
1466 *cap = false;
1467 rc = 1;
1468 }
1469
1470 DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap);
1471 kfree(dcbx_info);
1472
1473 return rc;
1474 }
1475
1476 static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num)
1477 {
1478 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1479 struct qed_dcbx_get *dcbx_info;
1480 int rc = 0;
1481
1482 DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid);
1483 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1484 if (!dcbx_info)
1485 return -EINVAL;
1486
1487 switch (tcid) {
1488 case DCB_NUMTCS_ATTR_PG:
1489 *num = dcbx_info->operational.params.max_ets_tc;
1490 break;
1491 case DCB_NUMTCS_ATTR_PFC:
1492 *num = dcbx_info->operational.params.pfc.max_tc;
1493 break;
1494 default:
1495 rc = -EINVAL;
1496 }
1497
1498 kfree(dcbx_info);
1499 DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num);
1500
1501 return rc;
1502 }
1503
1504 static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev)
1505 {
1506 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1507 struct qed_dcbx_get *dcbx_info;
1508 bool enabled;
1509
1510 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1511 if (!dcbx_info)
1512 return 0;
1513
1514 enabled = dcbx_info->operational.params.pfc.enabled;
1515 DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled);
1516 kfree(dcbx_info);
1517
1518 return enabled;
1519 }
1520
1521 static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev)
1522 {
1523 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1524 struct qed_dcbx_get *dcbx_info;
1525 u8 mode = 0;
1526
1527 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1528 if (!dcbx_info)
1529 return 0;
1530
1531 if (dcbx_info->operational.enabled)
1532 mode |= DCB_CAP_DCBX_LLD_MANAGED;
1533 if (dcbx_info->operational.ieee)
1534 mode |= DCB_CAP_DCBX_VER_IEEE;
1535 if (dcbx_info->operational.cee)
1536 mode |= DCB_CAP_DCBX_VER_CEE;
1537
1538 DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode);
1539 kfree(dcbx_info);
1540
1541 return mode;
1542 }
1543
1544 static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev,
1545 int tc,
1546 u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1547 {
1548 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1549 struct qed_dcbx_set dcbx_set;
1550 struct qed_ptt *ptt;
1551 int rc;
1552
1553 DP_VERBOSE(hwfn, QED_MSG_DCB,
1554 "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n",
1555 tc, pri_type, pgid, bw_pct, up_map);
1556
1557 if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1558 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1559 return;
1560 }
1561
1562 memset(&dcbx_set, 0, sizeof(dcbx_set));
1563 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1564 if (rc)
1565 return;
1566
1567 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1568 dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid;
1569
1570 ptt = qed_ptt_acquire(hwfn);
1571 if (!ptt)
1572 return;
1573
1574 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1575
1576 qed_ptt_release(hwfn, ptt);
1577 }
1578
1579 static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio,
1580 u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1581 {
1582 DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1583 }
1584
1585 static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1586 {
1587 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1588 struct qed_dcbx_set dcbx_set;
1589 struct qed_ptt *ptt;
1590 int rc;
1591
1592 DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct);
1593 if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1594 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1595 return;
1596 }
1597
1598 memset(&dcbx_set, 0, sizeof(dcbx_set));
1599 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1600 if (rc)
1601 return;
1602
1603 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1604 dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct;
1605
1606 ptt = qed_ptt_acquire(hwfn);
1607 if (!ptt)
1608 return;
1609
1610 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1611
1612 qed_ptt_release(hwfn, ptt);
1613 }
1614
1615 static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1616 {
1617 DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1618 }
1619
1620 static u8 qed_dcbnl_setall(struct qed_dev *cdev)
1621 {
1622 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1623 struct qed_dcbx_set dcbx_set;
1624 struct qed_ptt *ptt;
1625 int rc;
1626
1627 memset(&dcbx_set, 0, sizeof(dcbx_set));
1628 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1629 if (rc)
1630 return 1;
1631
1632 ptt = qed_ptt_acquire(hwfn);
1633 if (!ptt)
1634 return 1;
1635
1636 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1);
1637
1638 qed_ptt_release(hwfn, ptt);
1639
1640 return rc;
1641 }
1642
1643 static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num)
1644 {
1645 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1646 struct qed_dcbx_set dcbx_set;
1647 struct qed_ptt *ptt;
1648 int rc;
1649
1650 DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num);
1651 memset(&dcbx_set, 0, sizeof(dcbx_set));
1652 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1653 if (rc)
1654 return 1;
1655
1656 switch (tcid) {
1657 case DCB_NUMTCS_ATTR_PG:
1658 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1659 dcbx_set.config.params.max_ets_tc = num;
1660 break;
1661 case DCB_NUMTCS_ATTR_PFC:
1662 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1663 dcbx_set.config.params.pfc.max_tc = num;
1664 break;
1665 default:
1666 DP_INFO(hwfn, "Invalid tcid %d\n", tcid);
1667 return -EINVAL;
1668 }
1669
1670 ptt = qed_ptt_acquire(hwfn);
1671 if (!ptt)
1672 return -EINVAL;
1673
1674 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1675
1676 qed_ptt_release(hwfn, ptt);
1677
1678 return 0;
1679 }
1680
1681 static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state)
1682 {
1683 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1684 struct qed_dcbx_set dcbx_set;
1685 struct qed_ptt *ptt;
1686 int rc;
1687
1688 DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state);
1689
1690 memset(&dcbx_set, 0, sizeof(dcbx_set));
1691 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1692 if (rc)
1693 return;
1694
1695 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1696 dcbx_set.config.params.pfc.enabled = !!state;
1697
1698 ptt = qed_ptt_acquire(hwfn);
1699 if (!ptt)
1700 return;
1701
1702 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1703
1704 qed_ptt_release(hwfn, ptt);
1705 }
1706
1707 static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval)
1708 {
1709 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1710 struct qed_dcbx_get *dcbx_info;
1711 struct qed_app_entry *entry;
1712 bool ethtype;
1713 u8 prio = 0;
1714 int i;
1715
1716 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1717 if (!dcbx_info)
1718 return -EINVAL;
1719
1720 ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1721 for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1722 entry = &dcbx_info->operational.params.app_entry[i];
1723 if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) {
1724 prio = entry->prio;
1725 break;
1726 }
1727 }
1728
1729 if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1730 DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval);
1731 kfree(dcbx_info);
1732 return -EINVAL;
1733 }
1734
1735 kfree(dcbx_info);
1736
1737 return prio;
1738 }
1739
1740 static int qed_dcbnl_setapp(struct qed_dev *cdev,
1741 u8 idtype, u16 idval, u8 pri_map)
1742 {
1743 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1744 struct qed_dcbx_set dcbx_set;
1745 struct qed_app_entry *entry;
1746 struct qed_ptt *ptt;
1747 bool ethtype;
1748 int rc, i;
1749
1750 memset(&dcbx_set, 0, sizeof(dcbx_set));
1751 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1752 if (rc)
1753 return -EINVAL;
1754
1755 ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1756 for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1757 entry = &dcbx_set.config.params.app_entry[i];
1758 if ((entry->ethtype == ethtype) && (entry->proto_id == idval))
1759 break;
1760 /* First empty slot */
1761 if (!entry->proto_id) {
1762 dcbx_set.config.params.num_app_entries++;
1763 break;
1764 }
1765 }
1766
1767 if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1768 DP_ERR(cdev, "App table is full\n");
1769 return -EBUSY;
1770 }
1771
1772 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1773 dcbx_set.config.params.app_entry[i].ethtype = ethtype;
1774 dcbx_set.config.params.app_entry[i].proto_id = idval;
1775 dcbx_set.config.params.app_entry[i].prio = pri_map;
1776
1777 ptt = qed_ptt_acquire(hwfn);
1778 if (!ptt)
1779 return -EBUSY;
1780
1781 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1782
1783 qed_ptt_release(hwfn, ptt);
1784
1785 return rc;
1786 }
1787
1788 static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
1789 {
1790 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1791 struct qed_dcbx_set dcbx_set;
1792 struct qed_ptt *ptt;
1793 int rc;
1794
1795 DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);
1796
1797 if (!(mode & DCB_CAP_DCBX_VER_IEEE) && !(mode & DCB_CAP_DCBX_VER_CEE)) {
1798 DP_INFO(hwfn, "Allowed mode is cee, ieee or both\n");
1799 return 1;
1800 }
1801
1802 memset(&dcbx_set, 0, sizeof(dcbx_set));
1803 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1804 if (rc)
1805 return 1;
1806
1807 dcbx_set.ver_num = 0;
1808 if (mode & DCB_CAP_DCBX_VER_CEE) {
1809 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1810 dcbx_set.enabled = true;
1811 }
1812
1813 if (mode & DCB_CAP_DCBX_VER_IEEE) {
1814 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1815 dcbx_set.enabled = true;
1816 }
1817
1818 ptt = qed_ptt_acquire(hwfn);
1819 if (!ptt)
1820 return 1;
1821
1822 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1823
1824 qed_ptt_release(hwfn, ptt);
1825
1826 return 0;
1827 }
1828
1829 static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
1830 {
1831 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1832 struct qed_dcbx_get *dcbx_info;
1833
1834 DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id = %d\n", featid);
1835 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1836 if (!dcbx_info)
1837 return 1;
1838
1839 *flags = 0;
1840 switch (featid) {
1841 case DCB_FEATCFG_ATTR_PG:
1842 if (dcbx_info->operational.params.ets_enabled)
1843 *flags = DCB_FEATCFG_ENABLE;
1844 else
1845 *flags = DCB_FEATCFG_ERROR;
1846 break;
1847 case DCB_FEATCFG_ATTR_PFC:
1848 if (dcbx_info->operational.params.pfc.enabled)
1849 *flags = DCB_FEATCFG_ENABLE;
1850 else
1851 *flags = DCB_FEATCFG_ERROR;
1852 break;
1853 case DCB_FEATCFG_ATTR_APP:
1854 if (dcbx_info->operational.params.app_valid)
1855 *flags = DCB_FEATCFG_ENABLE;
1856 else
1857 *flags = DCB_FEATCFG_ERROR;
1858 break;
1859 default:
1860 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1861 kfree(dcbx_info);
1862 return 1;
1863 }
1864
1865 DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags);
1866 kfree(dcbx_info);
1867
1868 return 0;
1869 }
1870
1871 static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags)
1872 {
1873 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1874 struct qed_dcbx_set dcbx_set;
1875 bool enabled, willing;
1876 struct qed_ptt *ptt;
1877 int rc;
1878
1879 DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n",
1880 featid, flags);
1881 memset(&dcbx_set, 0, sizeof(dcbx_set));
1882 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1883 if (rc)
1884 return 1;
1885
1886 enabled = !!(flags & DCB_FEATCFG_ENABLE);
1887 willing = !!(flags & DCB_FEATCFG_WILLING);
1888 switch (featid) {
1889 case DCB_FEATCFG_ATTR_PG:
1890 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1891 dcbx_set.config.params.ets_enabled = enabled;
1892 dcbx_set.config.params.ets_willing = willing;
1893 break;
1894 case DCB_FEATCFG_ATTR_PFC:
1895 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1896 dcbx_set.config.params.pfc.enabled = enabled;
1897 dcbx_set.config.params.pfc.willing = willing;
1898 break;
1899 case DCB_FEATCFG_ATTR_APP:
1900 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1901 dcbx_set.config.params.app_willing = willing;
1902 break;
1903 default:
1904 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1905 return 1;
1906 }
1907
1908 ptt = qed_ptt_acquire(hwfn);
1909 if (!ptt)
1910 return 1;
1911
1912 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1913
1914 qed_ptt_release(hwfn, ptt);
1915
1916 return 0;
1917 }
1918
1919 static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev,
1920 struct dcb_peer_app_info *info,
1921 u16 *app_count)
1922 {
1923 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1924 struct qed_dcbx_get *dcbx_info;
1925
1926 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1927 if (!dcbx_info)
1928 return -EINVAL;
1929
1930 info->willing = dcbx_info->remote.params.app_willing;
1931 info->error = dcbx_info->remote.params.app_error;
1932 *app_count = dcbx_info->remote.params.num_app_entries;
1933 kfree(dcbx_info);
1934
1935 return 0;
1936 }
1937
1938 static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev,
1939 struct dcb_app *table)
1940 {
1941 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1942 struct qed_dcbx_get *dcbx_info;
1943 int i;
1944
1945 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1946 if (!dcbx_info)
1947 return -EINVAL;
1948
1949 for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) {
1950 if (dcbx_info->remote.params.app_entry[i].ethtype)
1951 table[i].selector = DCB_APP_IDTYPE_ETHTYPE;
1952 else
1953 table[i].selector = DCB_APP_IDTYPE_PORTNUM;
1954 table[i].priority = dcbx_info->remote.params.app_entry[i].prio;
1955 table[i].protocol =
1956 dcbx_info->remote.params.app_entry[i].proto_id;
1957 }
1958
1959 kfree(dcbx_info);
1960
1961 return 0;
1962 }
1963
1964 static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc)
1965 {
1966 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1967 struct qed_dcbx_get *dcbx_info;
1968 int i;
1969
1970 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1971 if (!dcbx_info)
1972 return -EINVAL;
1973
1974 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1975 if (dcbx_info->remote.params.pfc.prio[i])
1976 pfc->pfc_en |= BIT(i);
1977
1978 pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc;
1979 DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n",
1980 pfc->pfc_en, pfc->tcs_supported);
1981 kfree(dcbx_info);
1982
1983 return 0;
1984 }
1985
1986 static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg)
1987 {
1988 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1989 struct qed_dcbx_get *dcbx_info;
1990 int i;
1991
1992 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1993 if (!dcbx_info)
1994 return -EINVAL;
1995
1996 pg->willing = dcbx_info->remote.params.ets_willing;
1997 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
1998 pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i];
1999 pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i];
2000 }
2001
2002 DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing);
2003 kfree(dcbx_info);
2004
2005 return 0;
2006 }
2007
2008 static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
2009 struct ieee_pfc *pfc, bool remote)
2010 {
2011 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2012 struct qed_dcbx_params *params;
2013 struct qed_dcbx_get *dcbx_info;
2014 int rc, i;
2015
2016 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2017 if (!dcbx_info)
2018 return -EINVAL;
2019
2020 if (!dcbx_info->operational.ieee) {
2021 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2022 kfree(dcbx_info);
2023 return -EINVAL;
2024 }
2025
2026 if (remote) {
2027 memset(dcbx_info, 0, sizeof(*dcbx_info));
2028 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2029 QED_DCBX_REMOTE_MIB);
2030 if (rc) {
2031 kfree(dcbx_info);
2032 return -EINVAL;
2033 }
2034
2035 params = &dcbx_info->remote.params;
2036 } else {
2037 params = &dcbx_info->operational.params;
2038 }
2039
2040 pfc->pfc_cap = params->pfc.max_tc;
2041 pfc->pfc_en = 0;
2042 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2043 if (params->pfc.prio[i])
2044 pfc->pfc_en |= BIT(i);
2045
2046 kfree(dcbx_info);
2047
2048 return 0;
2049 }
2050
2051 static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2052 {
2053 return qed_dcbnl_get_ieee_pfc(cdev, pfc, false);
2054 }
2055
2056 static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2057 {
2058 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2059 struct qed_dcbx_get *dcbx_info;
2060 struct qed_dcbx_set dcbx_set;
2061 struct qed_ptt *ptt;
2062 int rc, i;
2063
2064 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2065 if (!dcbx_info)
2066 return -EINVAL;
2067
2068 if (!dcbx_info->operational.ieee) {
2069 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2070 kfree(dcbx_info);
2071 return -EINVAL;
2072 }
2073
2074 kfree(dcbx_info);
2075
2076 memset(&dcbx_set, 0, sizeof(dcbx_set));
2077 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2078 if (rc)
2079 return -EINVAL;
2080
2081 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
2082 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2083 dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
2084
2085 dcbx_set.config.params.pfc.max_tc = pfc->pfc_cap;
2086
2087 ptt = qed_ptt_acquire(hwfn);
2088 if (!ptt)
2089 return -EINVAL;
2090
2091 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2092
2093 qed_ptt_release(hwfn, ptt);
2094
2095 return rc;
2096 }
2097
2098 static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev,
2099 struct ieee_ets *ets, bool remote)
2100 {
2101 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2102 struct qed_dcbx_get *dcbx_info;
2103 struct qed_dcbx_params *params;
2104 int rc;
2105
2106 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2107 if (!dcbx_info)
2108 return -EINVAL;
2109
2110 if (!dcbx_info->operational.ieee) {
2111 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2112 kfree(dcbx_info);
2113 return -EINVAL;
2114 }
2115
2116 if (remote) {
2117 memset(dcbx_info, 0, sizeof(*dcbx_info));
2118 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2119 QED_DCBX_REMOTE_MIB);
2120 if (rc) {
2121 kfree(dcbx_info);
2122 return -EINVAL;
2123 }
2124
2125 params = &dcbx_info->remote.params;
2126 } else {
2127 params = &dcbx_info->operational.params;
2128 }
2129
2130 ets->ets_cap = params->max_ets_tc;
2131 ets->willing = params->ets_willing;
2132 ets->cbs = params->ets_cbs;
2133 memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw));
2134 memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa));
2135 memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc));
2136 kfree(dcbx_info);
2137
2138 return 0;
2139 }
2140
2141 static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2142 {
2143 return qed_dcbnl_get_ieee_ets(cdev, ets, false);
2144 }
2145
2146 static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets)
2147 {
2148 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2149 struct qed_dcbx_get *dcbx_info;
2150 struct qed_dcbx_set dcbx_set;
2151 struct qed_ptt *ptt;
2152 int rc;
2153
2154 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2155 if (!dcbx_info)
2156 return -EINVAL;
2157
2158 if (!dcbx_info->operational.ieee) {
2159 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2160 kfree(dcbx_info);
2161 return -EINVAL;
2162 }
2163
2164 kfree(dcbx_info);
2165
2166 memset(&dcbx_set, 0, sizeof(dcbx_set));
2167 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2168 if (rc)
2169 return -EINVAL;
2170
2171 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
2172 dcbx_set.config.params.max_ets_tc = ets->ets_cap;
2173 dcbx_set.config.params.ets_willing = ets->willing;
2174 dcbx_set.config.params.ets_cbs = ets->cbs;
2175 memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw,
2176 sizeof(ets->tc_tx_bw));
2177 memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa,
2178 sizeof(ets->tc_tsa));
2179 memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc,
2180 sizeof(ets->prio_tc));
2181
2182 ptt = qed_ptt_acquire(hwfn);
2183 if (!ptt)
2184 return -EINVAL;
2185
2186 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2187
2188 qed_ptt_release(hwfn, ptt);
2189
2190 return rc;
2191 }
2192
2193 static int
2194 qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2195 {
2196 return qed_dcbnl_get_ieee_ets(cdev, ets, true);
2197 }
2198
2199 static int
2200 qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2201 {
2202 return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
2203 }
2204
2205 static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
2206 {
2207 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2208 struct qed_dcbx_get *dcbx_info;
2209 struct qed_app_entry *entry;
2210 bool ethtype;
2211 u8 prio = 0;
2212 int i;
2213
2214 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2215 if (!dcbx_info)
2216 return -EINVAL;
2217
2218 if (!dcbx_info->operational.ieee) {
2219 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2220 kfree(dcbx_info);
2221 return -EINVAL;
2222 }
2223
2224 /* ieee defines the selector field value for ethertype to be 1 */
2225 ethtype = !!((app->selector - 1) == DCB_APP_IDTYPE_ETHTYPE);
2226 for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2227 entry = &dcbx_info->operational.params.app_entry[i];
2228 if ((entry->ethtype == ethtype) &&
2229 (entry->proto_id == app->protocol)) {
2230 prio = entry->prio;
2231 break;
2232 }
2233 }
2234
2235 if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2236 DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector,
2237 app->protocol);
2238 kfree(dcbx_info);
2239 return -EINVAL;
2240 }
2241
2242 app->priority = ffs(prio) - 1;
2243
2244 kfree(dcbx_info);
2245
2246 return 0;
2247 }
2248
2249 static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
2250 {
2251 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2252 struct qed_dcbx_get *dcbx_info;
2253 struct qed_dcbx_set dcbx_set;
2254 struct qed_app_entry *entry;
2255 struct qed_ptt *ptt;
2256 bool ethtype;
2257 int rc, i;
2258
2259 if (app->priority < 0 || app->priority >= QED_MAX_PFC_PRIORITIES) {
2260 DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
2261 return -EINVAL;
2262 }
2263
2264 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2265 if (!dcbx_info)
2266 return -EINVAL;
2267
2268 if (!dcbx_info->operational.ieee) {
2269 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2270 kfree(dcbx_info);
2271 return -EINVAL;
2272 }
2273
2274 kfree(dcbx_info);
2275
2276 memset(&dcbx_set, 0, sizeof(dcbx_set));
2277 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2278 if (rc)
2279 return -EINVAL;
2280
2281 /* ieee defines the selector field value for ethertype to be 1 */
2282 ethtype = !!((app->selector - 1) == DCB_APP_IDTYPE_ETHTYPE);
2283 for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2284 entry = &dcbx_set.config.params.app_entry[i];
2285 if ((entry->ethtype == ethtype) &&
2286 (entry->proto_id == app->protocol))
2287 break;
2288 /* First empty slot */
2289 if (!entry->proto_id) {
2290 dcbx_set.config.params.num_app_entries++;
2291 break;
2292 }
2293 }
2294
2295 if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2296 DP_ERR(cdev, "App table is full\n");
2297 return -EBUSY;
2298 }
2299
2300 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
2301 dcbx_set.config.params.app_entry[i].ethtype = ethtype;
2302 dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
2303 dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);
2304
2305 ptt = qed_ptt_acquire(hwfn);
2306 if (!ptt)
2307 return -EBUSY;
2308
2309 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2310
2311 qed_ptt_release(hwfn, ptt);
2312
2313 return rc;
2314 }
2315
2316 const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = {
2317 .getstate = qed_dcbnl_getstate,
2318 .setstate = qed_dcbnl_setstate,
2319 .getpgtccfgtx = qed_dcbnl_getpgtccfgtx,
2320 .getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx,
2321 .getpgtccfgrx = qed_dcbnl_getpgtccfgrx,
2322 .getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx,
2323 .getpfccfg = qed_dcbnl_getpfccfg,
2324 .setpfccfg = qed_dcbnl_setpfccfg,
2325 .getcap = qed_dcbnl_getcap,
2326 .getnumtcs = qed_dcbnl_getnumtcs,
2327 .getpfcstate = qed_dcbnl_getpfcstate,
2328 .getdcbx = qed_dcbnl_getdcbx,
2329 .setpgtccfgtx = qed_dcbnl_setpgtccfgtx,
2330 .setpgtccfgrx = qed_dcbnl_setpgtccfgrx,
2331 .setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx,
2332 .setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx,
2333 .setall = qed_dcbnl_setall,
2334 .setnumtcs = qed_dcbnl_setnumtcs,
2335 .setpfcstate = qed_dcbnl_setpfcstate,
2336 .setapp = qed_dcbnl_setapp,
2337 .setdcbx = qed_dcbnl_setdcbx,
2338 .setfeatcfg = qed_dcbnl_setfeatcfg,
2339 .getfeatcfg = qed_dcbnl_getfeatcfg,
2340 .getapp = qed_dcbnl_getapp,
2341 .peer_getappinfo = qed_dcbnl_peer_getappinfo,
2342 .peer_getapptable = qed_dcbnl_peer_getapptable,
2343 .cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc,
2344 .cee_peer_getpg = qed_dcbnl_cee_peer_getpg,
2345 .ieee_getpfc = qed_dcbnl_ieee_getpfc,
2346 .ieee_setpfc = qed_dcbnl_ieee_setpfc,
2347 .ieee_getets = qed_dcbnl_ieee_getets,
2348 .ieee_setets = qed_dcbnl_ieee_setets,
2349 .ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc,
2350 .ieee_peer_getets = qed_dcbnl_ieee_peer_getets,
2351 .ieee_getapp = qed_dcbnl_ieee_getapp,
2352 .ieee_setapp = qed_dcbnl_ieee_setapp,
2353 };
2354
2355 #endif
Linux with added FPC-III support