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7#include <linux/types.h>
8#include <asm/byteorder.h>
9#include <linux/bitops.h>
10#include <linux/dcbnl.h>
11#include <linux/errno.h>
12#include <linux/kernel.h>
13#include <linux/slab.h>
14#include <linux/string.h>
15#include "qed.h"
16#include "qed_cxt.h"
17#include "qed_dcbx.h"
18#include "qed_hsi.h"
19#include "qed_sp.h"
20#include "qed_sriov.h"
21#include "qed_rdma.h"
22#ifdef CONFIG_DCB
23#include <linux/qed/qed_eth_if.h>
24#endif
25
26#define QED_DCBX_MAX_MIB_READ_TRY (100)
27#define QED_ETH_TYPE_DEFAULT (0)
28#define QED_ETH_TYPE_ROCE (0x8915)
29#define QED_UDP_PORT_TYPE_ROCE_V2 (0x12B7)
30#define QED_ETH_TYPE_FCOE (0x8906)
31#define QED_TCP_PORT_ISCSI (0xCBC)
32
33#define QED_DCBX_INVALID_PRIORITY 0xFF
34
35
36
37
38#define QED_DCBX_PRIO2TC(prio_tc_tbl, prio) \
39 ((u32)(prio_tc_tbl >> ((7 - prio) * 4)) & 0x7)
40
41static const struct qed_dcbx_app_metadata qed_dcbx_app_update[] = {
42 {DCBX_PROTOCOL_ISCSI, "ISCSI", QED_PCI_ISCSI},
43 {DCBX_PROTOCOL_FCOE, "FCOE", QED_PCI_FCOE},
44 {DCBX_PROTOCOL_ROCE, "ROCE", QED_PCI_ETH_ROCE},
45 {DCBX_PROTOCOL_ROCE_V2, "ROCE_V2", QED_PCI_ETH_ROCE},
46 {DCBX_PROTOCOL_ETH, "ETH", QED_PCI_ETH},
47};
48
49static bool qed_dcbx_app_ethtype(u32 app_info_bitmap)
50{
51 return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
52 DCBX_APP_SF_ETHTYPE);
53}
54
55static bool qed_dcbx_ieee_app_ethtype(u32 app_info_bitmap)
56{
57 u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
58
59
60 if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
61 return qed_dcbx_app_ethtype(app_info_bitmap);
62
63 return !!(mfw_val == DCBX_APP_SF_IEEE_ETHTYPE);
64}
65
66static bool qed_dcbx_app_port(u32 app_info_bitmap)
67{
68 return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
69 DCBX_APP_SF_PORT);
70}
71
72static bool qed_dcbx_ieee_app_port(u32 app_info_bitmap, u8 type)
73{
74 u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
75
76
77 if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
78 return qed_dcbx_app_port(app_info_bitmap);
79
80 return !!(mfw_val == type || mfw_val == DCBX_APP_SF_IEEE_TCP_UDP_PORT);
81}
82
83static bool qed_dcbx_default_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
84{
85 bool ethtype;
86
87 if (ieee)
88 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
89 else
90 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
91
92 return !!(ethtype && (proto_id == QED_ETH_TYPE_DEFAULT));
93}
94
95static bool qed_dcbx_iscsi_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
96{
97 bool port;
98
99 if (ieee)
100 port = qed_dcbx_ieee_app_port(app_info_bitmap,
101 DCBX_APP_SF_IEEE_TCP_PORT);
102 else
103 port = qed_dcbx_app_port(app_info_bitmap);
104
105 return !!(port && (proto_id == QED_TCP_PORT_ISCSI));
106}
107
108static bool qed_dcbx_fcoe_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_FCOE));
118}
119
120static bool qed_dcbx_roce_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
121{
122 bool ethtype;
123
124 if (ieee)
125 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
126 else
127 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
128
129 return !!(ethtype && (proto_id == QED_ETH_TYPE_ROCE));
130}
131
132static bool qed_dcbx_roce_v2_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
133{
134 bool port;
135
136 if (ieee)
137 port = qed_dcbx_ieee_app_port(app_info_bitmap,
138 DCBX_APP_SF_IEEE_UDP_PORT);
139 else
140 port = qed_dcbx_app_port(app_info_bitmap);
141
142 return !!(port && (proto_id == QED_UDP_PORT_TYPE_ROCE_V2));
143}
144
145static void
146qed_dcbx_dp_protocol(struct qed_hwfn *p_hwfn, struct qed_dcbx_results *p_data)
147{
148 enum dcbx_protocol_type id;
149 int i;
150
151 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "DCBX negotiated: %d\n",
152 p_data->dcbx_enabled);
153
154 for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
155 id = qed_dcbx_app_update[i].id;
156
157 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
158 "%s info: update %d, enable %d, prio %d, tc %d, num_tc %d\n",
159 qed_dcbx_app_update[i].name, p_data->arr[id].update,
160 p_data->arr[id].enable, p_data->arr[id].priority,
161 p_data->arr[id].tc, p_hwfn->hw_info.num_active_tc);
162 }
163}
164
165static void
166qed_dcbx_set_params(struct qed_dcbx_results *p_data,
167 struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
168 bool app_tlv, bool enable, u8 prio, u8 tc,
169 enum dcbx_protocol_type type,
170 enum qed_pci_personality personality)
171{
172
173 p_data->arr[type].enable = enable;
174 p_data->arr[type].priority = prio;
175 p_data->arr[type].tc = tc;
176 if (enable)
177 p_data->arr[type].update = UPDATE_DCB;
178 else
179 p_data->arr[type].update = DONT_UPDATE_DCB_DSCP;
180
181 if (test_bit(QED_MF_DONT_ADD_VLAN0_TAG, &p_hwfn->cdev->mf_bits))
182 p_data->arr[type].dont_add_vlan0 = true;
183
184
185 if (app_tlv && p_hwfn->hw_info.personality == personality)
186 qed_hw_info_set_offload_tc(&p_hwfn->hw_info, tc);
187
188
189 if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits) &&
190 type == DCBX_PROTOCOL_ROCE) {
191 qed_wr(p_hwfn, p_ptt, DORQ_REG_TAG1_OVRD_MODE, 1);
192 qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_PCP_BB_K2, prio << 1);
193 }
194}
195
196
197static void
198qed_dcbx_update_app_info(struct qed_dcbx_results *p_data,
199 struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
200 bool app_tlv, bool enable, u8 prio, u8 tc,
201 enum dcbx_protocol_type type)
202{
203 enum qed_pci_personality personality;
204 enum dcbx_protocol_type id;
205 int i;
206
207 for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
208 id = qed_dcbx_app_update[i].id;
209
210 if (type != id)
211 continue;
212
213 personality = qed_dcbx_app_update[i].personality;
214
215 qed_dcbx_set_params(p_data, p_hwfn, p_ptt, app_tlv, enable,
216 prio, tc, type, personality);
217 }
218}
219
220static bool
221qed_dcbx_get_app_protocol_type(struct qed_hwfn *p_hwfn,
222 u32 app_prio_bitmap,
223 u16 id, enum dcbx_protocol_type *type, bool ieee)
224{
225 if (qed_dcbx_fcoe_tlv(app_prio_bitmap, id, ieee)) {
226 *type = DCBX_PROTOCOL_FCOE;
227 } else if (qed_dcbx_roce_tlv(app_prio_bitmap, id, ieee)) {
228 *type = DCBX_PROTOCOL_ROCE;
229 } else if (qed_dcbx_iscsi_tlv(app_prio_bitmap, id, ieee)) {
230 *type = DCBX_PROTOCOL_ISCSI;
231 } else if (qed_dcbx_default_tlv(app_prio_bitmap, id, ieee)) {
232 *type = DCBX_PROTOCOL_ETH;
233 } else if (qed_dcbx_roce_v2_tlv(app_prio_bitmap, id, ieee)) {
234 *type = DCBX_PROTOCOL_ROCE_V2;
235 } else {
236 *type = DCBX_MAX_PROTOCOL_TYPE;
237 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
238 "No action required, App TLV entry = 0x%x\n",
239 app_prio_bitmap);
240 return false;
241 }
242
243 return true;
244}
245
246
247
248
249static int
250qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
251 struct qed_dcbx_results *p_data,
252 struct dcbx_app_priority_entry *p_tbl,
253 u32 pri_tc_tbl, int count, u8 dcbx_version)
254{
255 enum dcbx_protocol_type type;
256 bool enable, ieee, eth_tlv;
257 u8 tc, priority_map;
258 u16 protocol_id;
259 int priority;
260 int i;
261
262 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Num APP entries = %d\n", count);
263
264 ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE);
265 eth_tlv = false;
266
267 for (i = 0; i < count; i++) {
268 protocol_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
269 DCBX_APP_PROTOCOL_ID);
270 priority_map = QED_MFW_GET_FIELD(p_tbl[i].entry,
271 DCBX_APP_PRI_MAP);
272 priority = ffs(priority_map) - 1;
273 if (priority < 0) {
274 DP_ERR(p_hwfn, "Invalid priority\n");
275 return -EINVAL;
276 }
277
278 tc = QED_DCBX_PRIO2TC(pri_tc_tbl, priority);
279 if (qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
280 protocol_id, &type, ieee)) {
281
282
283
284
285
286
287 if (type == DCBX_PROTOCOL_ETH) {
288 enable = false;
289 eth_tlv = true;
290 } else {
291 enable = true;
292 }
293
294 qed_dcbx_update_app_info(p_data, p_hwfn, p_ptt, true,
295 enable, priority, tc, type);
296 }
297 }
298
299
300 if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits) && !eth_tlv)
301 p_data->arr[DCBX_PROTOCOL_ETH].tc = p_hwfn->ufp_info.tc;
302
303
304
305
306
307
308
309 tc = p_data->arr[DCBX_PROTOCOL_ETH].tc;
310 priority = p_data->arr[DCBX_PROTOCOL_ETH].priority;
311 for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) {
312 if (p_data->arr[type].update)
313 continue;
314
315 enable = (type == DCBX_PROTOCOL_ETH) ? false : !!dcbx_version;
316 qed_dcbx_update_app_info(p_data, p_hwfn, p_ptt, false, enable,
317 priority, tc, type);
318 }
319
320 return 0;
321}
322
323
324
325
326static int
327qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
328{
329 struct dcbx_app_priority_feature *p_app;
330 struct dcbx_app_priority_entry *p_tbl;
331 struct qed_dcbx_results data = { 0 };
332 struct dcbx_ets_feature *p_ets;
333 struct qed_hw_info *p_info;
334 u32 pri_tc_tbl, flags;
335 u8 dcbx_version;
336 int num_entries;
337 int rc = 0;
338
339 flags = p_hwfn->p_dcbx_info->operational.flags;
340 dcbx_version = QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION);
341
342 p_app = &p_hwfn->p_dcbx_info->operational.features.app;
343 p_tbl = p_app->app_pri_tbl;
344
345 p_ets = &p_hwfn->p_dcbx_info->operational.features.ets;
346 pri_tc_tbl = p_ets->pri_tc_tbl[0];
347
348 p_info = &p_hwfn->hw_info;
349 num_entries = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES);
350
351 rc = qed_dcbx_process_tlv(p_hwfn, p_ptt, &data, p_tbl, pri_tc_tbl,
352 num_entries, dcbx_version);
353 if (rc)
354 return rc;
355
356 p_info->num_active_tc = QED_MFW_GET_FIELD(p_ets->flags,
357 DCBX_ETS_MAX_TCS);
358 p_hwfn->qm_info.ooo_tc = QED_MFW_GET_FIELD(p_ets->flags, DCBX_OOO_TC);
359 data.pf_id = p_hwfn->rel_pf_id;
360 data.dcbx_enabled = !!dcbx_version;
361
362 qed_dcbx_dp_protocol(p_hwfn, &data);
363
364 memcpy(&p_hwfn->p_dcbx_info->results, &data,
365 sizeof(struct qed_dcbx_results));
366
367 return 0;
368}
369
370static int
371qed_dcbx_copy_mib(struct qed_hwfn *p_hwfn,
372 struct qed_ptt *p_ptt,
373 struct qed_dcbx_mib_meta_data *p_data,
374 enum qed_mib_read_type type)
375{
376 u32 prefix_seq_num, suffix_seq_num;
377 int read_count = 0;
378 int rc = 0;
379
380
381
382
383 do {
384 if (type == QED_DCBX_REMOTE_LLDP_MIB) {
385 qed_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote,
386 p_data->addr, p_data->size);
387 prefix_seq_num = p_data->lldp_remote->prefix_seq_num;
388 suffix_seq_num = p_data->lldp_remote->suffix_seq_num;
389 } else {
390 qed_memcpy_from(p_hwfn, p_ptt, p_data->mib,
391 p_data->addr, p_data->size);
392 prefix_seq_num = p_data->mib->prefix_seq_num;
393 suffix_seq_num = p_data->mib->suffix_seq_num;
394 }
395 read_count++;
396
397 DP_VERBOSE(p_hwfn,
398 QED_MSG_DCB,
399 "mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n",
400 type, read_count, prefix_seq_num, suffix_seq_num);
401 } while ((prefix_seq_num != suffix_seq_num) &&
402 (read_count < QED_DCBX_MAX_MIB_READ_TRY));
403
404 if (read_count >= QED_DCBX_MAX_MIB_READ_TRY) {
405 DP_ERR(p_hwfn,
406 "MIB read err, mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n",
407 type, read_count, prefix_seq_num, suffix_seq_num);
408 rc = -EIO;
409 }
410
411 return rc;
412}
413
414static void
415qed_dcbx_get_priority_info(struct qed_hwfn *p_hwfn,
416 struct qed_dcbx_app_prio *p_prio,
417 struct qed_dcbx_results *p_results)
418{
419 u8 val;
420
421 p_prio->roce = QED_DCBX_INVALID_PRIORITY;
422 p_prio->roce_v2 = QED_DCBX_INVALID_PRIORITY;
423 p_prio->iscsi = QED_DCBX_INVALID_PRIORITY;
424 p_prio->fcoe = QED_DCBX_INVALID_PRIORITY;
425
426 if (p_results->arr[DCBX_PROTOCOL_ROCE].update &&
427 p_results->arr[DCBX_PROTOCOL_ROCE].enable)
428 p_prio->roce = p_results->arr[DCBX_PROTOCOL_ROCE].priority;
429
430 if (p_results->arr[DCBX_PROTOCOL_ROCE_V2].update &&
431 p_results->arr[DCBX_PROTOCOL_ROCE_V2].enable) {
432 val = p_results->arr[DCBX_PROTOCOL_ROCE_V2].priority;
433 p_prio->roce_v2 = val;
434 }
435
436 if (p_results->arr[DCBX_PROTOCOL_ISCSI].update &&
437 p_results->arr[DCBX_PROTOCOL_ISCSI].enable)
438 p_prio->iscsi = p_results->arr[DCBX_PROTOCOL_ISCSI].priority;
439
440 if (p_results->arr[DCBX_PROTOCOL_FCOE].update &&
441 p_results->arr[DCBX_PROTOCOL_FCOE].enable)
442 p_prio->fcoe = p_results->arr[DCBX_PROTOCOL_FCOE].priority;
443
444 if (p_results->arr[DCBX_PROTOCOL_ETH].update &&
445 p_results->arr[DCBX_PROTOCOL_ETH].enable)
446 p_prio->eth = p_results->arr[DCBX_PROTOCOL_ETH].priority;
447
448 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
449 "Priorities: iscsi %d, roce %d, roce v2 %d, fcoe %d, eth %d\n",
450 p_prio->iscsi, p_prio->roce, p_prio->roce_v2, p_prio->fcoe,
451 p_prio->eth);
452}
453
454static void
455qed_dcbx_get_app_data(struct qed_hwfn *p_hwfn,
456 struct dcbx_app_priority_feature *p_app,
457 struct dcbx_app_priority_entry *p_tbl,
458 struct qed_dcbx_params *p_params, bool ieee)
459{
460 struct qed_app_entry *entry;
461 u8 pri_map;
462 int i;
463
464 p_params->app_willing = QED_MFW_GET_FIELD(p_app->flags,
465 DCBX_APP_WILLING);
466 p_params->app_valid = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ENABLED);
467 p_params->app_error = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR);
468 p_params->num_app_entries = QED_MFW_GET_FIELD(p_app->flags,
469 DCBX_APP_NUM_ENTRIES);
470 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
471 entry = &p_params->app_entry[i];
472 if (ieee) {
473 u8 sf_ieee;
474 u32 val;
475
476 sf_ieee = QED_MFW_GET_FIELD(p_tbl[i].entry,
477 DCBX_APP_SF_IEEE);
478 switch (sf_ieee) {
479 case DCBX_APP_SF_IEEE_RESERVED:
480
481 val = QED_MFW_GET_FIELD(p_tbl[i].entry,
482 DCBX_APP_SF);
483 entry->sf_ieee = val ?
484 QED_DCBX_SF_IEEE_TCP_UDP_PORT :
485 QED_DCBX_SF_IEEE_ETHTYPE;
486 break;
487 case DCBX_APP_SF_IEEE_ETHTYPE:
488 entry->sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
489 break;
490 case DCBX_APP_SF_IEEE_TCP_PORT:
491 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
492 break;
493 case DCBX_APP_SF_IEEE_UDP_PORT:
494 entry->sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
495 break;
496 case DCBX_APP_SF_IEEE_TCP_UDP_PORT:
497 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
498 break;
499 }
500 } else {
501 entry->ethtype = !(QED_MFW_GET_FIELD(p_tbl[i].entry,
502 DCBX_APP_SF));
503 }
504
505 pri_map = QED_MFW_GET_FIELD(p_tbl[i].entry, DCBX_APP_PRI_MAP);
506 entry->prio = ffs(pri_map) - 1;
507 entry->proto_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
508 DCBX_APP_PROTOCOL_ID);
509 qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
510 entry->proto_id,
511 &entry->proto_type, ieee);
512 }
513
514 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
515 "APP params: willing %d, valid %d error = %d\n",
516 p_params->app_willing, p_params->app_valid,
517 p_params->app_error);
518}
519
520static void
521qed_dcbx_get_pfc_data(struct qed_hwfn *p_hwfn,
522 u32 pfc, struct qed_dcbx_params *p_params)
523{
524 u8 pfc_map;
525
526 p_params->pfc.willing = QED_MFW_GET_FIELD(pfc, DCBX_PFC_WILLING);
527 p_params->pfc.max_tc = QED_MFW_GET_FIELD(pfc, DCBX_PFC_CAPS);
528 p_params->pfc.enabled = QED_MFW_GET_FIELD(pfc, DCBX_PFC_ENABLED);
529 pfc_map = QED_MFW_GET_FIELD(pfc, DCBX_PFC_PRI_EN_BITMAP);
530 p_params->pfc.prio[0] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_0);
531 p_params->pfc.prio[1] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_1);
532 p_params->pfc.prio[2] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_2);
533 p_params->pfc.prio[3] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_3);
534 p_params->pfc.prio[4] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_4);
535 p_params->pfc.prio[5] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_5);
536 p_params->pfc.prio[6] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_6);
537 p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7);
538
539 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
540 "PFC params: willing %d, pfc_bitmap %u max_tc = %u enabled = %d\n",
541 p_params->pfc.willing, pfc_map, p_params->pfc.max_tc,
542 p_params->pfc.enabled);
543}
544
545static void
546qed_dcbx_get_ets_data(struct qed_hwfn *p_hwfn,
547 struct dcbx_ets_feature *p_ets,
548 struct qed_dcbx_params *p_params)
549{
550 __be32 bw_map[2], tsa_map[2];
551 u32 pri_map;
552 int i;
553
554 p_params->ets_willing = QED_MFW_GET_FIELD(p_ets->flags,
555 DCBX_ETS_WILLING);
556 p_params->ets_enabled = QED_MFW_GET_FIELD(p_ets->flags,
557 DCBX_ETS_ENABLED);
558 p_params->ets_cbs = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_CBS);
559 p_params->max_ets_tc = QED_MFW_GET_FIELD(p_ets->flags,
560 DCBX_ETS_MAX_TCS);
561 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
562 "ETS params: willing %d, enabled = %d ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n",
563 p_params->ets_willing, p_params->ets_enabled,
564 p_params->ets_cbs, p_ets->pri_tc_tbl[0],
565 p_params->max_ets_tc);
566
567 if (p_params->ets_enabled && !p_params->max_ets_tc) {
568 p_params->max_ets_tc = QED_MAX_PFC_PRIORITIES;
569 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
570 "ETS params: max_ets_tc is forced to %d\n",
571 p_params->max_ets_tc);
572 }
573
574
575
576
577 cpu_to_be32_array(bw_map, p_ets->tc_bw_tbl, 2);
578 cpu_to_be32_array(tsa_map, p_ets->tc_tsa_tbl, 2);
579 pri_map = p_ets->pri_tc_tbl[0];
580
581 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
582 p_params->ets_tc_bw_tbl[i] = ((u8 *)bw_map)[i];
583 p_params->ets_tc_tsa_tbl[i] = ((u8 *)tsa_map)[i];
584 p_params->ets_pri_tc_tbl[i] = QED_DCBX_PRIO2TC(pri_map, i);
585 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
586 "elem %d bw_tbl %x tsa_tbl %x\n",
587 i, p_params->ets_tc_bw_tbl[i],
588 p_params->ets_tc_tsa_tbl[i]);
589 }
590}
591
592static void
593qed_dcbx_get_common_params(struct qed_hwfn *p_hwfn,
594 struct dcbx_app_priority_feature *p_app,
595 struct dcbx_app_priority_entry *p_tbl,
596 struct dcbx_ets_feature *p_ets,
597 u32 pfc, struct qed_dcbx_params *p_params, bool ieee)
598{
599 qed_dcbx_get_app_data(p_hwfn, p_app, p_tbl, p_params, ieee);
600 qed_dcbx_get_ets_data(p_hwfn, p_ets, p_params);
601 qed_dcbx_get_pfc_data(p_hwfn, pfc, p_params);
602}
603
604static void
605qed_dcbx_get_local_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
606{
607 struct dcbx_features *p_feat;
608
609 p_feat = &p_hwfn->p_dcbx_info->local_admin.features;
610 qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
611 p_feat->app.app_pri_tbl, &p_feat->ets,
612 p_feat->pfc, ¶ms->local.params, false);
613 params->local.valid = true;
614}
615
616static void
617qed_dcbx_get_remote_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
618{
619 struct dcbx_features *p_feat;
620
621 p_feat = &p_hwfn->p_dcbx_info->remote.features;
622 qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
623 p_feat->app.app_pri_tbl, &p_feat->ets,
624 p_feat->pfc, ¶ms->remote.params, false);
625 params->remote.valid = true;
626}
627
628static void
629qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn,
630 struct qed_dcbx_get *params)
631{
632 struct qed_dcbx_operational_params *p_operational;
633 struct qed_dcbx_results *p_results;
634 struct dcbx_features *p_feat;
635 bool enabled, err;
636 u32 flags;
637 bool val;
638
639 flags = p_hwfn->p_dcbx_info->operational.flags;
640
641
642
643
644 p_operational = ¶ms->operational;
645 enabled = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) !=
646 DCBX_CONFIG_VERSION_DISABLED);
647 if (!enabled) {
648 p_operational->enabled = enabled;
649 p_operational->valid = false;
650 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx is disabled\n");
651 return;
652 }
653
654 p_feat = &p_hwfn->p_dcbx_info->operational.features;
655 p_results = &p_hwfn->p_dcbx_info->results;
656
657 val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
658 DCBX_CONFIG_VERSION_IEEE);
659 p_operational->ieee = val;
660 val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
661 DCBX_CONFIG_VERSION_CEE);
662 p_operational->cee = val;
663
664 val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
665 DCBX_CONFIG_VERSION_STATIC);
666 p_operational->local = val;
667
668 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
669 "Version support: ieee %d, cee %d, static %d\n",
670 p_operational->ieee, p_operational->cee,
671 p_operational->local);
672
673 qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
674 p_feat->app.app_pri_tbl, &p_feat->ets,
675 p_feat->pfc, ¶ms->operational.params,
676 p_operational->ieee);
677 qed_dcbx_get_priority_info(p_hwfn, &p_operational->app_prio, p_results);
678 err = QED_MFW_GET_FIELD(p_feat->app.flags, DCBX_APP_ERROR);
679 p_operational->err = err;
680 p_operational->enabled = enabled;
681 p_operational->valid = true;
682}
683
684static void
685qed_dcbx_get_local_lldp_params(struct qed_hwfn *p_hwfn,
686 struct qed_dcbx_get *params)
687{
688 struct lldp_config_params_s *p_local;
689
690 p_local = &p_hwfn->p_dcbx_info->lldp_local[LLDP_NEAREST_BRIDGE];
691
692 memcpy(params->lldp_local.local_chassis_id, p_local->local_chassis_id,
693 sizeof(p_local->local_chassis_id));
694 memcpy(params->lldp_local.local_port_id, p_local->local_port_id,
695 sizeof(p_local->local_port_id));
696}
697
698static void
699qed_dcbx_get_remote_lldp_params(struct qed_hwfn *p_hwfn,
700 struct qed_dcbx_get *params)
701{
702 struct lldp_status_params_s *p_remote;
703
704 p_remote = &p_hwfn->p_dcbx_info->lldp_remote[LLDP_NEAREST_BRIDGE];
705
706 memcpy(params->lldp_remote.peer_chassis_id, p_remote->peer_chassis_id,
707 sizeof(p_remote->peer_chassis_id));
708 memcpy(params->lldp_remote.peer_port_id, p_remote->peer_port_id,
709 sizeof(p_remote->peer_port_id));
710}
711
712static int
713qed_dcbx_get_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *p_params,
714 enum qed_mib_read_type type)
715{
716 switch (type) {
717 case QED_DCBX_REMOTE_MIB:
718 qed_dcbx_get_remote_params(p_hwfn, p_params);
719 break;
720 case QED_DCBX_LOCAL_MIB:
721 qed_dcbx_get_local_params(p_hwfn, p_params);
722 break;
723 case QED_DCBX_OPERATIONAL_MIB:
724 qed_dcbx_get_operational_params(p_hwfn, p_params);
725 break;
726 case QED_DCBX_REMOTE_LLDP_MIB:
727 qed_dcbx_get_remote_lldp_params(p_hwfn, p_params);
728 break;
729 case QED_DCBX_LOCAL_LLDP_MIB:
730 qed_dcbx_get_local_lldp_params(p_hwfn, p_params);
731 break;
732 default:
733 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
734 return -EINVAL;
735 }
736
737 return 0;
738}
739
740static int
741qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
742{
743 struct qed_dcbx_mib_meta_data data;
744 int rc = 0;
745
746 memset(&data, 0, sizeof(data));
747 data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
748 lldp_config_params);
749 data.lldp_local = p_hwfn->p_dcbx_info->lldp_local;
750 data.size = sizeof(struct lldp_config_params_s);
751 qed_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size);
752
753 return rc;
754}
755
756static int
757qed_dcbx_read_remote_lldp_mib(struct qed_hwfn *p_hwfn,
758 struct qed_ptt *p_ptt,
759 enum qed_mib_read_type type)
760{
761 struct qed_dcbx_mib_meta_data data;
762 int rc = 0;
763
764 memset(&data, 0, sizeof(data));
765 data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
766 lldp_status_params);
767 data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote;
768 data.size = sizeof(struct lldp_status_params_s);
769 rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
770
771 return rc;
772}
773
774static int
775qed_dcbx_read_operational_mib(struct qed_hwfn *p_hwfn,
776 struct qed_ptt *p_ptt,
777 enum qed_mib_read_type type)
778{
779 struct qed_dcbx_mib_meta_data data;
780 int rc = 0;
781
782 memset(&data, 0, sizeof(data));
783 data.addr = p_hwfn->mcp_info->port_addr +
784 offsetof(struct public_port, operational_dcbx_mib);
785 data.mib = &p_hwfn->p_dcbx_info->operational;
786 data.size = sizeof(struct dcbx_mib);
787 rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
788
789 return rc;
790}
791
792static int
793qed_dcbx_read_remote_mib(struct qed_hwfn *p_hwfn,
794 struct qed_ptt *p_ptt, enum qed_mib_read_type type)
795{
796 struct qed_dcbx_mib_meta_data data;
797 int rc = 0;
798
799 memset(&data, 0, sizeof(data));
800 data.addr = p_hwfn->mcp_info->port_addr +
801 offsetof(struct public_port, remote_dcbx_mib);
802 data.mib = &p_hwfn->p_dcbx_info->remote;
803 data.size = sizeof(struct dcbx_mib);
804 rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
805
806 return rc;
807}
808
809static int
810qed_dcbx_read_local_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
811{
812 struct qed_dcbx_mib_meta_data data;
813 int rc = 0;
814
815 memset(&data, 0, sizeof(data));
816 data.addr = p_hwfn->mcp_info->port_addr +
817 offsetof(struct public_port, local_admin_dcbx_mib);
818 data.local_admin = &p_hwfn->p_dcbx_info->local_admin;
819 data.size = sizeof(struct dcbx_local_params);
820 qed_memcpy_from(p_hwfn, p_ptt, data.local_admin, data.addr, data.size);
821
822 return rc;
823}
824
825static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
826 struct qed_ptt *p_ptt, enum qed_mib_read_type type)
827{
828 int rc = -EINVAL;
829
830 switch (type) {
831 case QED_DCBX_OPERATIONAL_MIB:
832 rc = qed_dcbx_read_operational_mib(p_hwfn, p_ptt, type);
833 break;
834 case QED_DCBX_REMOTE_MIB:
835 rc = qed_dcbx_read_remote_mib(p_hwfn, p_ptt, type);
836 break;
837 case QED_DCBX_LOCAL_MIB:
838 rc = qed_dcbx_read_local_mib(p_hwfn, p_ptt);
839 break;
840 case QED_DCBX_REMOTE_LLDP_MIB:
841 rc = qed_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type);
842 break;
843 case QED_DCBX_LOCAL_LLDP_MIB:
844 rc = qed_dcbx_read_local_lldp_mib(p_hwfn, p_ptt);
845 break;
846 default:
847 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
848 }
849
850 return rc;
851}
852
853static void qed_dcbx_aen(struct qed_hwfn *hwfn, u32 mib_type)
854{
855 struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
856 void *cookie = hwfn->cdev->ops_cookie;
857
858 if (cookie && op->dcbx_aen)
859 op->dcbx_aen(cookie, &hwfn->p_dcbx_info->get, mib_type);
860}
861
862
863
864
865
866int
867qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn,
868 struct qed_ptt *p_ptt, enum qed_mib_read_type type)
869{
870 int rc = 0;
871
872 rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
873 if (rc)
874 return rc;
875
876 if (type == QED_DCBX_OPERATIONAL_MIB) {
877 rc = qed_dcbx_process_mib_info(p_hwfn, p_ptt);
878 if (!rc) {
879
880
881
882 qed_qm_reconf(p_hwfn, p_ptt);
883
884
885 qed_sp_pf_update(p_hwfn);
886
887
888
889
890 if (p_hwfn->hw_info.personality ==
891 QED_PCI_ETH_ROCE)
892 qed_roce_dpm_dcbx(p_hwfn, p_ptt);
893 }
894 }
895
896 qed_dcbx_get_params(p_hwfn, &p_hwfn->p_dcbx_info->get, type);
897
898 if (type == QED_DCBX_OPERATIONAL_MIB) {
899 struct qed_dcbx_results *p_data;
900 u16 val;
901
902
903
904
905 p_data = &p_hwfn->p_dcbx_info->results;
906 val = (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE].tc) |
907 (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE_V2].tc);
908 val <<= NIG_REG_TX_EDPM_CTRL_TX_EDPM_TC_EN_SHIFT;
909 val |= NIG_REG_TX_EDPM_CTRL_TX_EDPM_EN;
910 qed_wr(p_hwfn, p_ptt, NIG_REG_TX_EDPM_CTRL, val);
911 }
912
913 qed_dcbx_aen(p_hwfn, type);
914
915 return rc;
916}
917
918int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn)
919{
920 p_hwfn->p_dcbx_info = kzalloc(sizeof(*p_hwfn->p_dcbx_info), GFP_KERNEL);
921 if (!p_hwfn->p_dcbx_info)
922 return -ENOMEM;
923
924 return 0;
925}
926
927void qed_dcbx_info_free(struct qed_hwfn *p_hwfn)
928{
929 kfree(p_hwfn->p_dcbx_info);
930 p_hwfn->p_dcbx_info = NULL;
931}
932
933static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
934 struct qed_dcbx_results *p_src,
935 enum dcbx_protocol_type type)
936{
937 p_data->dcb_enable_flag = p_src->arr[type].enable;
938 p_data->dcb_priority = p_src->arr[type].priority;
939 p_data->dcb_tc = p_src->arr[type].tc;
940 p_data->dcb_dont_add_vlan0 = p_src->arr[type].dont_add_vlan0;
941}
942
943
944void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
945 struct pf_update_ramrod_data *p_dest)
946{
947 struct protocol_dcb_data *p_dcb_data;
948 u8 update_flag;
949
950 update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update;
951 p_dest->update_fcoe_dcb_data_mode = update_flag;
952
953 update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update;
954 p_dest->update_roce_dcb_data_mode = update_flag;
955
956 update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update;
957 p_dest->update_rroce_dcb_data_mode = update_flag;
958
959 update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update;
960 p_dest->update_iscsi_dcb_data_mode = update_flag;
961 update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
962 p_dest->update_eth_dcb_data_mode = update_flag;
963
964 p_dcb_data = &p_dest->fcoe_dcb_data;
965 qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE);
966 p_dcb_data = &p_dest->roce_dcb_data;
967 qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE);
968 p_dcb_data = &p_dest->rroce_dcb_data;
969 qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE_V2);
970 p_dcb_data = &p_dest->iscsi_dcb_data;
971 qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI);
972 p_dcb_data = &p_dest->eth_dcb_data;
973 qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
974}
975
976u8 qed_dcbx_get_priority_tc(struct qed_hwfn *p_hwfn, u8 pri)
977{
978 struct qed_dcbx_get *dcbx_info = &p_hwfn->p_dcbx_info->get;
979
980 if (pri >= QED_MAX_PFC_PRIORITIES) {
981 DP_ERR(p_hwfn, "Invalid priority %d\n", pri);
982 return QED_DCBX_DEFAULT_TC;
983 }
984
985 if (!dcbx_info->operational.valid) {
986 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
987 "Dcbx parameters not available\n");
988 return QED_DCBX_DEFAULT_TC;
989 }
990
991 return dcbx_info->operational.params.ets_pri_tc_tbl[pri];
992}
993
994#ifdef CONFIG_DCB
995static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn,
996 struct qed_dcbx_get *p_get,
997 enum qed_mib_read_type type)
998{
999 struct qed_ptt *p_ptt;
1000 int rc;
1001
1002 if (IS_VF(p_hwfn->cdev))
1003 return -EINVAL;
1004
1005 p_ptt = qed_ptt_acquire(p_hwfn);
1006 if (!p_ptt)
1007 return -EBUSY;
1008
1009 rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
1010 if (rc)
1011 goto out;
1012
1013 rc = qed_dcbx_get_params(p_hwfn, p_get, type);
1014
1015out:
1016 qed_ptt_release(p_hwfn, p_ptt);
1017 return rc;
1018}
1019
1020static void
1021qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn,
1022 u32 *pfc, struct qed_dcbx_params *p_params)
1023{
1024 u8 pfc_map = 0;
1025 int i;
1026
1027 *pfc &= ~DCBX_PFC_ERROR_MASK;
1028
1029 if (p_params->pfc.willing)
1030 *pfc |= DCBX_PFC_WILLING_MASK;
1031 else
1032 *pfc &= ~DCBX_PFC_WILLING_MASK;
1033
1034 if (p_params->pfc.enabled)
1035 *pfc |= DCBX_PFC_ENABLED_MASK;
1036 else
1037 *pfc &= ~DCBX_PFC_ENABLED_MASK;
1038
1039 *pfc &= ~DCBX_PFC_CAPS_MASK;
1040 *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;
1041
1042 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1043 if (p_params->pfc.prio[i])
1044 pfc_map |= BIT(i);
1045
1046 *pfc &= ~DCBX_PFC_PRI_EN_BITMAP_MASK;
1047 *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);
1048
1049 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "pfc = 0x%x\n", *pfc);
1050}
1051
1052static void
1053qed_dcbx_set_ets_data(struct qed_hwfn *p_hwfn,
1054 struct dcbx_ets_feature *p_ets,
1055 struct qed_dcbx_params *p_params)
1056{
1057 __be32 bw_map[2], tsa_map[2];
1058 u32 val;
1059 int i;
1060
1061 if (p_params->ets_willing)
1062 p_ets->flags |= DCBX_ETS_WILLING_MASK;
1063 else
1064 p_ets->flags &= ~DCBX_ETS_WILLING_MASK;
1065
1066 if (p_params->ets_cbs)
1067 p_ets->flags |= DCBX_ETS_CBS_MASK;
1068 else
1069 p_ets->flags &= ~DCBX_ETS_CBS_MASK;
1070
1071 if (p_params->ets_enabled)
1072 p_ets->flags |= DCBX_ETS_ENABLED_MASK;
1073 else
1074 p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;
1075
1076 p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
1077 p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;
1078
1079 p_ets->pri_tc_tbl[0] = 0;
1080
1081 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
1082 ((u8 *)bw_map)[i] = p_params->ets_tc_bw_tbl[i];
1083 ((u8 *)tsa_map)[i] = p_params->ets_tc_tsa_tbl[i];
1084
1085
1086
1087
1088 val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4));
1089 p_ets->pri_tc_tbl[0] |= val;
1090 }
1091
1092 be32_to_cpu_array(p_ets->tc_bw_tbl, bw_map, 2);
1093 be32_to_cpu_array(p_ets->tc_tsa_tbl, tsa_map, 2);
1094}
1095
1096static void
1097qed_dcbx_set_app_data(struct qed_hwfn *p_hwfn,
1098 struct dcbx_app_priority_feature *p_app,
1099 struct qed_dcbx_params *p_params, bool ieee)
1100{
1101 u32 *entry;
1102 int i;
1103
1104 if (p_params->app_willing)
1105 p_app->flags |= DCBX_APP_WILLING_MASK;
1106 else
1107 p_app->flags &= ~DCBX_APP_WILLING_MASK;
1108
1109 if (p_params->app_valid)
1110 p_app->flags |= DCBX_APP_ENABLED_MASK;
1111 else
1112 p_app->flags &= ~DCBX_APP_ENABLED_MASK;
1113
1114 p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
1115 p_app->flags |= (u32)p_params->num_app_entries <<
1116 DCBX_APP_NUM_ENTRIES_SHIFT;
1117
1118 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
1119 entry = &p_app->app_pri_tbl[i].entry;
1120 *entry = 0;
1121 if (ieee) {
1122 *entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK);
1123 switch (p_params->app_entry[i].sf_ieee) {
1124 case QED_DCBX_SF_IEEE_ETHTYPE:
1125 *entry |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
1126 DCBX_APP_SF_IEEE_SHIFT);
1127 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1128 DCBX_APP_SF_SHIFT);
1129 break;
1130 case QED_DCBX_SF_IEEE_TCP_PORT:
1131 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
1132 DCBX_APP_SF_IEEE_SHIFT);
1133 *entry |= ((u32)DCBX_APP_SF_PORT <<
1134 DCBX_APP_SF_SHIFT);
1135 break;
1136 case QED_DCBX_SF_IEEE_UDP_PORT:
1137 *entry |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
1138 DCBX_APP_SF_IEEE_SHIFT);
1139 *entry |= ((u32)DCBX_APP_SF_PORT <<
1140 DCBX_APP_SF_SHIFT);
1141 break;
1142 case QED_DCBX_SF_IEEE_TCP_UDP_PORT:
1143 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
1144 DCBX_APP_SF_IEEE_SHIFT);
1145 *entry |= ((u32)DCBX_APP_SF_PORT <<
1146 DCBX_APP_SF_SHIFT);
1147 break;
1148 }
1149 } else {
1150 *entry &= ~DCBX_APP_SF_MASK;
1151 if (p_params->app_entry[i].ethtype)
1152 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1153 DCBX_APP_SF_SHIFT);
1154 else
1155 *entry |= ((u32)DCBX_APP_SF_PORT <<
1156 DCBX_APP_SF_SHIFT);
1157 }
1158
1159 *entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
1160 *entry |= ((u32)p_params->app_entry[i].proto_id <<
1161 DCBX_APP_PROTOCOL_ID_SHIFT);
1162 *entry &= ~DCBX_APP_PRI_MAP_MASK;
1163 *entry |= ((u32)(p_params->app_entry[i].prio) <<
1164 DCBX_APP_PRI_MAP_SHIFT);
1165 }
1166}
1167
1168static void
1169qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn,
1170 struct dcbx_local_params *local_admin,
1171 struct qed_dcbx_set *params)
1172{
1173 bool ieee = false;
1174
1175 local_admin->flags = 0;
1176 memcpy(&local_admin->features,
1177 &p_hwfn->p_dcbx_info->operational.features,
1178 sizeof(local_admin->features));
1179
1180 if (params->enabled) {
1181 local_admin->config = params->ver_num;
1182 ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
1183 } else {
1184 local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
1185 }
1186
1187 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx version = %d\n",
1188 local_admin->config);
1189
1190 if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG)
1191 qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
1192 ¶ms->config.params);
1193
1194 if (params->override_flags & QED_DCBX_OVERRIDE_ETS_CFG)
1195 qed_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
1196 ¶ms->config.params);
1197
1198 if (params->override_flags & QED_DCBX_OVERRIDE_APP_CFG)
1199 qed_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
1200 ¶ms->config.params, ieee);
1201}
1202
1203int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
1204 struct qed_dcbx_set *params, bool hw_commit)
1205{
1206 struct dcbx_local_params local_admin;
1207 struct qed_dcbx_mib_meta_data data;
1208 u32 resp = 0, param = 0;
1209 int rc = 0;
1210
1211 if (!hw_commit) {
1212 memcpy(&p_hwfn->p_dcbx_info->set, params,
1213 sizeof(struct qed_dcbx_set));
1214 return 0;
1215 }
1216
1217
1218 memset(&p_hwfn->p_dcbx_info->set, 0, sizeof(p_hwfn->p_dcbx_info->set));
1219
1220 memset(&local_admin, 0, sizeof(local_admin));
1221 qed_dcbx_set_local_params(p_hwfn, &local_admin, params);
1222
1223 data.addr = p_hwfn->mcp_info->port_addr +
1224 offsetof(struct public_port, local_admin_dcbx_mib);
1225 data.local_admin = &local_admin;
1226 data.size = sizeof(struct dcbx_local_params);
1227 qed_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);
1228
1229 rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
1230 1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, ¶m);
1231 if (rc)
1232 DP_NOTICE(p_hwfn, "Failed to send DCBX update request\n");
1233
1234 return rc;
1235}
1236
1237int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
1238 struct qed_dcbx_set *params)
1239{
1240 struct qed_dcbx_get *dcbx_info;
1241 int rc;
1242
1243 if (p_hwfn->p_dcbx_info->set.config.valid) {
1244 memcpy(params, &p_hwfn->p_dcbx_info->set,
1245 sizeof(struct qed_dcbx_set));
1246 return 0;
1247 }
1248
1249 dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
1250 if (!dcbx_info)
1251 return -ENOMEM;
1252
1253 rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
1254 if (rc) {
1255 kfree(dcbx_info);
1256 return rc;
1257 }
1258
1259 p_hwfn->p_dcbx_info->set.override_flags = 0;
1260 p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
1261 if (dcbx_info->operational.cee)
1262 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1263 if (dcbx_info->operational.ieee)
1264 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1265 if (dcbx_info->operational.local)
1266 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1267
1268 p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
1269 BUILD_BUG_ON(sizeof(dcbx_info->operational.params) !=
1270 sizeof(p_hwfn->p_dcbx_info->set.config.params));
1271 memcpy(&p_hwfn->p_dcbx_info->set.config.params,
1272 &dcbx_info->operational.params,
1273 sizeof(p_hwfn->p_dcbx_info->set.config.params));
1274 p_hwfn->p_dcbx_info->set.config.valid = true;
1275
1276 memcpy(params, &p_hwfn->p_dcbx_info->set, sizeof(struct qed_dcbx_set));
1277
1278 kfree(dcbx_info);
1279
1280 return 0;
1281}
1282
1283static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
1284 enum qed_mib_read_type type)
1285{
1286 struct qed_dcbx_get *dcbx_info;
1287
1288 dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_ATOMIC);
1289 if (!dcbx_info)
1290 return NULL;
1291
1292 if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
1293 kfree(dcbx_info);
1294 return NULL;
1295 }
1296
1297 if ((type == QED_DCBX_OPERATIONAL_MIB) &&
1298 !dcbx_info->operational.enabled) {
1299 DP_INFO(hwfn, "DCBX is not enabled/operational\n");
1300 kfree(dcbx_info);
1301 return NULL;
1302 }
1303
1304 return dcbx_info;
1305}
1306
1307static u8 qed_dcbnl_getstate(struct qed_dev *cdev)
1308{
1309 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1310 struct qed_dcbx_get *dcbx_info;
1311 bool enabled;
1312
1313 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1314 if (!dcbx_info)
1315 return 0;
1316
1317 enabled = dcbx_info->operational.enabled;
1318 DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled);
1319 kfree(dcbx_info);
1320
1321 return enabled;
1322}
1323
1324static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state)
1325{
1326 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1327 struct qed_dcbx_set dcbx_set;
1328 struct qed_ptt *ptt;
1329 int rc;
1330
1331 DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state);
1332
1333 memset(&dcbx_set, 0, sizeof(dcbx_set));
1334 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1335 if (rc)
1336 return 1;
1337
1338 dcbx_set.enabled = !!state;
1339
1340 ptt = qed_ptt_acquire(hwfn);
1341 if (!ptt)
1342 return 1;
1343
1344 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1345
1346 qed_ptt_release(hwfn, ptt);
1347
1348 return rc ? 1 : 0;
1349}
1350
1351static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type,
1352 u8 *pgid, u8 *bw_pct, u8 *up_map)
1353{
1354 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1355 struct qed_dcbx_get *dcbx_info;
1356
1357 DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc);
1358 *prio_type = *pgid = *bw_pct = *up_map = 0;
1359 if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1360 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1361 return;
1362 }
1363
1364 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1365 if (!dcbx_info)
1366 return;
1367
1368 *pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc];
1369 kfree(dcbx_info);
1370}
1371
1372static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct)
1373{
1374 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1375 struct qed_dcbx_get *dcbx_info;
1376
1377 *bw_pct = 0;
1378 DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid);
1379 if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1380 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1381 return;
1382 }
1383
1384 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1385 if (!dcbx_info)
1386 return;
1387
1388 *bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid];
1389 DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct);
1390 kfree(dcbx_info);
1391}
1392
1393static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio,
1394 u8 *bwg_id, u8 *bw_pct, u8 *up_map)
1395{
1396 DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1397 *prio = *bwg_id = *bw_pct = *up_map = 0;
1398}
1399
1400static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev,
1401 int bwg_id, u8 *bw_pct)
1402{
1403 DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1404 *bw_pct = 0;
1405}
1406
1407static void qed_dcbnl_getpfccfg(struct qed_dev *cdev,
1408 int priority, u8 *setting)
1409{
1410 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1411 struct qed_dcbx_get *dcbx_info;
1412
1413 DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority);
1414 if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1415 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1416 return;
1417 }
1418
1419 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1420 if (!dcbx_info)
1421 return;
1422
1423 *setting = dcbx_info->operational.params.pfc.prio[priority];
1424 DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting);
1425 kfree(dcbx_info);
1426}
1427
1428static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting)
1429{
1430 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1431 struct qed_dcbx_set dcbx_set;
1432 struct qed_ptt *ptt;
1433 int rc;
1434
1435 DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n",
1436 priority, setting);
1437 if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1438 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1439 return;
1440 }
1441
1442 memset(&dcbx_set, 0, sizeof(dcbx_set));
1443 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1444 if (rc)
1445 return;
1446
1447 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1448 dcbx_set.config.params.pfc.prio[priority] = !!setting;
1449
1450 ptt = qed_ptt_acquire(hwfn);
1451 if (!ptt)
1452 return;
1453
1454 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1455
1456 qed_ptt_release(hwfn, ptt);
1457}
1458
1459static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap)
1460{
1461 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1462 struct qed_dcbx_get *dcbx_info;
1463 int rc = 0;
1464
1465 DP_VERBOSE(hwfn, QED_MSG_DCB, "capid = %d\n", capid);
1466 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1467 if (!dcbx_info)
1468 return 1;
1469
1470 switch (capid) {
1471 case DCB_CAP_ATTR_PG:
1472 case DCB_CAP_ATTR_PFC:
1473 case DCB_CAP_ATTR_UP2TC:
1474 case DCB_CAP_ATTR_GSP:
1475 *cap = true;
1476 break;
1477 case DCB_CAP_ATTR_PG_TCS:
1478 case DCB_CAP_ATTR_PFC_TCS:
1479 *cap = 0x80;
1480 break;
1481 case DCB_CAP_ATTR_DCBX:
1482 *cap = (DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_VER_IEEE |
1483 DCB_CAP_DCBX_STATIC);
1484 break;
1485 default:
1486 *cap = false;
1487 rc = 1;
1488 }
1489
1490 DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap);
1491 kfree(dcbx_info);
1492
1493 return rc;
1494}
1495
1496static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num)
1497{
1498 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1499 struct qed_dcbx_get *dcbx_info;
1500 int rc = 0;
1501
1502 DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid);
1503 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1504 if (!dcbx_info)
1505 return -EINVAL;
1506
1507 switch (tcid) {
1508 case DCB_NUMTCS_ATTR_PG:
1509 *num = dcbx_info->operational.params.max_ets_tc;
1510 break;
1511 case DCB_NUMTCS_ATTR_PFC:
1512 *num = dcbx_info->operational.params.pfc.max_tc;
1513 break;
1514 default:
1515 rc = -EINVAL;
1516 }
1517
1518 kfree(dcbx_info);
1519 DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num);
1520
1521 return rc;
1522}
1523
1524static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev)
1525{
1526 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1527 struct qed_dcbx_get *dcbx_info;
1528 bool enabled;
1529
1530 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1531 if (!dcbx_info)
1532 return 0;
1533
1534 enabled = dcbx_info->operational.params.pfc.enabled;
1535 DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled);
1536 kfree(dcbx_info);
1537
1538 return enabled;
1539}
1540
1541static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev)
1542{
1543 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1544 struct qed_dcbx_get *dcbx_info;
1545 u8 mode = 0;
1546
1547 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1548 if (!dcbx_info)
1549 return 0;
1550
1551 if (dcbx_info->operational.ieee)
1552 mode |= DCB_CAP_DCBX_VER_IEEE;
1553 if (dcbx_info->operational.cee)
1554 mode |= DCB_CAP_DCBX_VER_CEE;
1555 if (dcbx_info->operational.local)
1556 mode |= DCB_CAP_DCBX_STATIC;
1557
1558 DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode);
1559 kfree(dcbx_info);
1560
1561 return mode;
1562}
1563
1564static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev,
1565 int tc,
1566 u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1567{
1568 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1569 struct qed_dcbx_set dcbx_set;
1570 struct qed_ptt *ptt;
1571 int rc;
1572
1573 DP_VERBOSE(hwfn, QED_MSG_DCB,
1574 "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n",
1575 tc, pri_type, pgid, bw_pct, up_map);
1576
1577 if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1578 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1579 return;
1580 }
1581
1582 memset(&dcbx_set, 0, sizeof(dcbx_set));
1583 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1584 if (rc)
1585 return;
1586
1587 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1588 dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid;
1589
1590 ptt = qed_ptt_acquire(hwfn);
1591 if (!ptt)
1592 return;
1593
1594 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1595
1596 qed_ptt_release(hwfn, ptt);
1597}
1598
1599static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio,
1600 u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1601{
1602 DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1603}
1604
1605static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1606{
1607 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1608 struct qed_dcbx_set dcbx_set;
1609 struct qed_ptt *ptt;
1610 int rc;
1611
1612 DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct);
1613 if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1614 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1615 return;
1616 }
1617
1618 memset(&dcbx_set, 0, sizeof(dcbx_set));
1619 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1620 if (rc)
1621 return;
1622
1623 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1624 dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct;
1625
1626 ptt = qed_ptt_acquire(hwfn);
1627 if (!ptt)
1628 return;
1629
1630 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1631
1632 qed_ptt_release(hwfn, ptt);
1633}
1634
1635static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1636{
1637 DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1638}
1639
1640static u8 qed_dcbnl_setall(struct qed_dev *cdev)
1641{
1642 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1643 struct qed_dcbx_set dcbx_set;
1644 struct qed_ptt *ptt;
1645 int rc;
1646
1647 memset(&dcbx_set, 0, sizeof(dcbx_set));
1648 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1649 if (rc)
1650 return 1;
1651
1652 ptt = qed_ptt_acquire(hwfn);
1653 if (!ptt)
1654 return 1;
1655
1656 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1);
1657
1658 qed_ptt_release(hwfn, ptt);
1659
1660 return rc;
1661}
1662
1663static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num)
1664{
1665 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1666 struct qed_dcbx_set dcbx_set;
1667 struct qed_ptt *ptt;
1668 int rc;
1669
1670 DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num);
1671 memset(&dcbx_set, 0, sizeof(dcbx_set));
1672 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1673 if (rc)
1674 return 1;
1675
1676 switch (tcid) {
1677 case DCB_NUMTCS_ATTR_PG:
1678 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1679 dcbx_set.config.params.max_ets_tc = num;
1680 break;
1681 case DCB_NUMTCS_ATTR_PFC:
1682 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1683 dcbx_set.config.params.pfc.max_tc = num;
1684 break;
1685 default:
1686 DP_INFO(hwfn, "Invalid tcid %d\n", tcid);
1687 return -EINVAL;
1688 }
1689
1690 ptt = qed_ptt_acquire(hwfn);
1691 if (!ptt)
1692 return -EINVAL;
1693
1694 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1695
1696 qed_ptt_release(hwfn, ptt);
1697
1698 return 0;
1699}
1700
1701static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state)
1702{
1703 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1704 struct qed_dcbx_set dcbx_set;
1705 struct qed_ptt *ptt;
1706 int rc;
1707
1708 DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state);
1709
1710 memset(&dcbx_set, 0, sizeof(dcbx_set));
1711 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1712 if (rc)
1713 return;
1714
1715 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1716 dcbx_set.config.params.pfc.enabled = !!state;
1717
1718 ptt = qed_ptt_acquire(hwfn);
1719 if (!ptt)
1720 return;
1721
1722 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1723
1724 qed_ptt_release(hwfn, ptt);
1725}
1726
1727static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval)
1728{
1729 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1730 struct qed_dcbx_get *dcbx_info;
1731 struct qed_app_entry *entry;
1732 bool ethtype;
1733 u8 prio = 0;
1734 int i;
1735
1736 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1737 if (!dcbx_info)
1738 return -EINVAL;
1739
1740 ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1741 for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1742 entry = &dcbx_info->operational.params.app_entry[i];
1743 if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) {
1744 prio = entry->prio;
1745 break;
1746 }
1747 }
1748
1749 if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1750 DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval);
1751 kfree(dcbx_info);
1752 return -EINVAL;
1753 }
1754
1755 kfree(dcbx_info);
1756
1757 return prio;
1758}
1759
1760static int qed_dcbnl_setapp(struct qed_dev *cdev,
1761 u8 idtype, u16 idval, u8 pri_map)
1762{
1763 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1764 struct qed_dcbx_set dcbx_set;
1765 struct qed_app_entry *entry;
1766 struct qed_ptt *ptt;
1767 bool ethtype;
1768 int rc, i;
1769
1770 memset(&dcbx_set, 0, sizeof(dcbx_set));
1771 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1772 if (rc)
1773 return -EINVAL;
1774
1775 ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1776 for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1777 entry = &dcbx_set.config.params.app_entry[i];
1778 if ((entry->ethtype == ethtype) && (entry->proto_id == idval))
1779 break;
1780
1781 if (!entry->proto_id) {
1782 dcbx_set.config.params.num_app_entries++;
1783 break;
1784 }
1785 }
1786
1787 if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1788 DP_ERR(cdev, "App table is full\n");
1789 return -EBUSY;
1790 }
1791
1792 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1793 dcbx_set.config.params.app_entry[i].ethtype = ethtype;
1794 dcbx_set.config.params.app_entry[i].proto_id = idval;
1795 dcbx_set.config.params.app_entry[i].prio = pri_map;
1796
1797 ptt = qed_ptt_acquire(hwfn);
1798 if (!ptt)
1799 return -EBUSY;
1800
1801 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1802
1803 qed_ptt_release(hwfn, ptt);
1804
1805 return rc;
1806}
1807
1808static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
1809{
1810 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1811 struct qed_dcbx_set dcbx_set;
1812 struct qed_ptt *ptt;
1813 int rc;
1814
1815 DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);
1816
1817 if (!(mode & DCB_CAP_DCBX_VER_IEEE) &&
1818 !(mode & DCB_CAP_DCBX_VER_CEE) && !(mode & DCB_CAP_DCBX_STATIC)) {
1819 DP_INFO(hwfn, "Allowed modes are cee, ieee or static\n");
1820 return 1;
1821 }
1822
1823 memset(&dcbx_set, 0, sizeof(dcbx_set));
1824 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1825 if (rc)
1826 return 1;
1827
1828 dcbx_set.ver_num = 0;
1829 if (mode & DCB_CAP_DCBX_VER_CEE) {
1830 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1831 dcbx_set.enabled = true;
1832 }
1833
1834 if (mode & DCB_CAP_DCBX_VER_IEEE) {
1835 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1836 dcbx_set.enabled = true;
1837 }
1838
1839 if (mode & DCB_CAP_DCBX_STATIC) {
1840 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1841 dcbx_set.enabled = true;
1842 }
1843
1844 ptt = qed_ptt_acquire(hwfn);
1845 if (!ptt)
1846 return 1;
1847
1848 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1849
1850 qed_ptt_release(hwfn, ptt);
1851
1852 return rc;
1853}
1854
1855static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
1856{
1857 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1858 struct qed_dcbx_get *dcbx_info;
1859
1860 DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id = %d\n", featid);
1861 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1862 if (!dcbx_info)
1863 return 1;
1864
1865 *flags = 0;
1866 switch (featid) {
1867 case DCB_FEATCFG_ATTR_PG:
1868 if (dcbx_info->operational.params.ets_enabled)
1869 *flags = DCB_FEATCFG_ENABLE;
1870 else
1871 *flags = DCB_FEATCFG_ERROR;
1872 break;
1873 case DCB_FEATCFG_ATTR_PFC:
1874 if (dcbx_info->operational.params.pfc.enabled)
1875 *flags = DCB_FEATCFG_ENABLE;
1876 else
1877 *flags = DCB_FEATCFG_ERROR;
1878 break;
1879 case DCB_FEATCFG_ATTR_APP:
1880 if (dcbx_info->operational.params.app_valid)
1881 *flags = DCB_FEATCFG_ENABLE;
1882 else
1883 *flags = DCB_FEATCFG_ERROR;
1884 break;
1885 default:
1886 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1887 kfree(dcbx_info);
1888 return 1;
1889 }
1890
1891 DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags);
1892 kfree(dcbx_info);
1893
1894 return 0;
1895}
1896
1897static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags)
1898{
1899 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1900 struct qed_dcbx_set dcbx_set;
1901 bool enabled, willing;
1902 struct qed_ptt *ptt;
1903 int rc;
1904
1905 DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n",
1906 featid, flags);
1907 memset(&dcbx_set, 0, sizeof(dcbx_set));
1908 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1909 if (rc)
1910 return 1;
1911
1912 enabled = !!(flags & DCB_FEATCFG_ENABLE);
1913 willing = !!(flags & DCB_FEATCFG_WILLING);
1914 switch (featid) {
1915 case DCB_FEATCFG_ATTR_PG:
1916 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1917 dcbx_set.config.params.ets_enabled = enabled;
1918 dcbx_set.config.params.ets_willing = willing;
1919 break;
1920 case DCB_FEATCFG_ATTR_PFC:
1921 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1922 dcbx_set.config.params.pfc.enabled = enabled;
1923 dcbx_set.config.params.pfc.willing = willing;
1924 break;
1925 case DCB_FEATCFG_ATTR_APP:
1926 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1927 dcbx_set.config.params.app_willing = willing;
1928 break;
1929 default:
1930 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1931 return 1;
1932 }
1933
1934 ptt = qed_ptt_acquire(hwfn);
1935 if (!ptt)
1936 return 1;
1937
1938 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1939
1940 qed_ptt_release(hwfn, ptt);
1941
1942 return 0;
1943}
1944
1945static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev,
1946 struct dcb_peer_app_info *info,
1947 u16 *app_count)
1948{
1949 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1950 struct qed_dcbx_get *dcbx_info;
1951
1952 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1953 if (!dcbx_info)
1954 return -EINVAL;
1955
1956 info->willing = dcbx_info->remote.params.app_willing;
1957 info->error = dcbx_info->remote.params.app_error;
1958 *app_count = dcbx_info->remote.params.num_app_entries;
1959 kfree(dcbx_info);
1960
1961 return 0;
1962}
1963
1964static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev,
1965 struct dcb_app *table)
1966{
1967 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1968 struct qed_dcbx_get *dcbx_info;
1969 int i;
1970
1971 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1972 if (!dcbx_info)
1973 return -EINVAL;
1974
1975 for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) {
1976 if (dcbx_info->remote.params.app_entry[i].ethtype)
1977 table[i].selector = DCB_APP_IDTYPE_ETHTYPE;
1978 else
1979 table[i].selector = DCB_APP_IDTYPE_PORTNUM;
1980 table[i].priority = dcbx_info->remote.params.app_entry[i].prio;
1981 table[i].protocol =
1982 dcbx_info->remote.params.app_entry[i].proto_id;
1983 }
1984
1985 kfree(dcbx_info);
1986
1987 return 0;
1988}
1989
1990static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc)
1991{
1992 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1993 struct qed_dcbx_get *dcbx_info;
1994 int i;
1995
1996 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1997 if (!dcbx_info)
1998 return -EINVAL;
1999
2000 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2001 if (dcbx_info->remote.params.pfc.prio[i])
2002 pfc->pfc_en |= BIT(i);
2003
2004 pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc;
2005 DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n",
2006 pfc->pfc_en, pfc->tcs_supported);
2007 kfree(dcbx_info);
2008
2009 return 0;
2010}
2011
2012static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg)
2013{
2014 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2015 struct qed_dcbx_get *dcbx_info;
2016 int i;
2017
2018 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
2019 if (!dcbx_info)
2020 return -EINVAL;
2021
2022 pg->willing = dcbx_info->remote.params.ets_willing;
2023 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
2024 pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i];
2025 pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i];
2026 }
2027
2028 DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing);
2029 kfree(dcbx_info);
2030
2031 return 0;
2032}
2033
2034static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
2035 struct ieee_pfc *pfc, bool remote)
2036{
2037 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2038 struct qed_dcbx_params *params;
2039 struct qed_dcbx_get *dcbx_info;
2040 int rc, i;
2041
2042 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2043 if (!dcbx_info)
2044 return -EINVAL;
2045
2046 if (!dcbx_info->operational.ieee) {
2047 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2048 kfree(dcbx_info);
2049 return -EINVAL;
2050 }
2051
2052 if (remote) {
2053 memset(dcbx_info, 0, sizeof(*dcbx_info));
2054 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2055 QED_DCBX_REMOTE_MIB);
2056 if (rc) {
2057 kfree(dcbx_info);
2058 return -EINVAL;
2059 }
2060
2061 params = &dcbx_info->remote.params;
2062 } else {
2063 params = &dcbx_info->operational.params;
2064 }
2065
2066 pfc->pfc_cap = params->pfc.max_tc;
2067 pfc->pfc_en = 0;
2068 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2069 if (params->pfc.prio[i])
2070 pfc->pfc_en |= BIT(i);
2071
2072 kfree(dcbx_info);
2073
2074 return 0;
2075}
2076
2077static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2078{
2079 return qed_dcbnl_get_ieee_pfc(cdev, pfc, false);
2080}
2081
2082static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2083{
2084 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2085 struct qed_dcbx_get *dcbx_info;
2086 struct qed_dcbx_set dcbx_set;
2087 struct qed_ptt *ptt;
2088 int rc, i;
2089
2090 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2091 if (!dcbx_info)
2092 return -EINVAL;
2093
2094 if (!dcbx_info->operational.ieee) {
2095 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2096 kfree(dcbx_info);
2097 return -EINVAL;
2098 }
2099
2100 kfree(dcbx_info);
2101
2102 memset(&dcbx_set, 0, sizeof(dcbx_set));
2103 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2104 if (rc)
2105 return -EINVAL;
2106
2107 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
2108 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2109 dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
2110
2111 dcbx_set.config.params.pfc.max_tc = pfc->pfc_cap;
2112
2113 ptt = qed_ptt_acquire(hwfn);
2114 if (!ptt)
2115 return -EINVAL;
2116
2117 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2118
2119 qed_ptt_release(hwfn, ptt);
2120
2121 return rc;
2122}
2123
2124static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev,
2125 struct ieee_ets *ets, bool remote)
2126{
2127 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2128 struct qed_dcbx_get *dcbx_info;
2129 struct qed_dcbx_params *params;
2130 int rc;
2131
2132 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2133 if (!dcbx_info)
2134 return -EINVAL;
2135
2136 if (!dcbx_info->operational.ieee) {
2137 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2138 kfree(dcbx_info);
2139 return -EINVAL;
2140 }
2141
2142 if (remote) {
2143 memset(dcbx_info, 0, sizeof(*dcbx_info));
2144 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2145 QED_DCBX_REMOTE_MIB);
2146 if (rc) {
2147 kfree(dcbx_info);
2148 return -EINVAL;
2149 }
2150
2151 params = &dcbx_info->remote.params;
2152 } else {
2153 params = &dcbx_info->operational.params;
2154 }
2155
2156 ets->ets_cap = params->max_ets_tc;
2157 ets->willing = params->ets_willing;
2158 ets->cbs = params->ets_cbs;
2159 memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw));
2160 memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa));
2161 memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc));
2162 kfree(dcbx_info);
2163
2164 return 0;
2165}
2166
2167static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2168{
2169 return qed_dcbnl_get_ieee_ets(cdev, ets, false);
2170}
2171
2172static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets)
2173{
2174 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2175 struct qed_dcbx_get *dcbx_info;
2176 struct qed_dcbx_set dcbx_set;
2177 struct qed_ptt *ptt;
2178 int rc;
2179
2180 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2181 if (!dcbx_info)
2182 return -EINVAL;
2183
2184 if (!dcbx_info->operational.ieee) {
2185 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2186 kfree(dcbx_info);
2187 return -EINVAL;
2188 }
2189
2190 kfree(dcbx_info);
2191
2192 memset(&dcbx_set, 0, sizeof(dcbx_set));
2193 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2194 if (rc)
2195 return -EINVAL;
2196
2197 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
2198 dcbx_set.config.params.max_ets_tc = ets->ets_cap;
2199 dcbx_set.config.params.ets_willing = ets->willing;
2200 dcbx_set.config.params.ets_cbs = ets->cbs;
2201 memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw,
2202 sizeof(ets->tc_tx_bw));
2203 memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa,
2204 sizeof(ets->tc_tsa));
2205 memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc,
2206 sizeof(ets->prio_tc));
2207
2208 ptt = qed_ptt_acquire(hwfn);
2209 if (!ptt)
2210 return -EINVAL;
2211
2212 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2213
2214 qed_ptt_release(hwfn, ptt);
2215
2216 return rc;
2217}
2218
2219static int
2220qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2221{
2222 return qed_dcbnl_get_ieee_ets(cdev, ets, true);
2223}
2224
2225static int
2226qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2227{
2228 return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
2229}
2230
2231static int qed_get_sf_ieee_value(u8 selector, u8 *sf_ieee)
2232{
2233 switch (selector) {
2234 case IEEE_8021QAZ_APP_SEL_ETHERTYPE:
2235 *sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
2236 break;
2237 case IEEE_8021QAZ_APP_SEL_STREAM:
2238 *sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
2239 break;
2240 case IEEE_8021QAZ_APP_SEL_DGRAM:
2241 *sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
2242 break;
2243 case IEEE_8021QAZ_APP_SEL_ANY:
2244 *sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
2245 break;
2246 default:
2247 return -EINVAL;
2248 }
2249
2250 return 0;
2251}
2252
2253static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
2254{
2255 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2256 struct qed_dcbx_get *dcbx_info;
2257 struct qed_app_entry *entry;
2258 u8 prio = 0;
2259 u8 sf_ieee;
2260 int i;
2261
2262 DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d\n",
2263 app->selector, app->protocol);
2264
2265 if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2266 DP_INFO(cdev, "Invalid selector field value %d\n",
2267 app->selector);
2268 return -EINVAL;
2269 }
2270
2271 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2272 if (!dcbx_info)
2273 return -EINVAL;
2274
2275 if (!dcbx_info->operational.ieee) {
2276 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2277 kfree(dcbx_info);
2278 return -EINVAL;
2279 }
2280
2281 for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2282 entry = &dcbx_info->operational.params.app_entry[i];
2283 if ((entry->sf_ieee == sf_ieee) &&
2284 (entry->proto_id == app->protocol)) {
2285 prio = entry->prio;
2286 break;
2287 }
2288 }
2289
2290 if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2291 DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector,
2292 app->protocol);
2293 kfree(dcbx_info);
2294 return -EINVAL;
2295 }
2296
2297 app->priority = ffs(prio) - 1;
2298
2299 kfree(dcbx_info);
2300
2301 return 0;
2302}
2303
2304static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
2305{
2306 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2307 struct qed_dcbx_get *dcbx_info;
2308 struct qed_dcbx_set dcbx_set;
2309 struct qed_app_entry *entry;
2310 struct qed_ptt *ptt;
2311 u8 sf_ieee;
2312 int rc, i;
2313
2314 DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d pri = %d\n",
2315 app->selector, app->protocol, app->priority);
2316 if (app->priority >= QED_MAX_PFC_PRIORITIES) {
2317 DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
2318 return -EINVAL;
2319 }
2320
2321 if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2322 DP_INFO(cdev, "Invalid selector field value %d\n",
2323 app->selector);
2324 return -EINVAL;
2325 }
2326
2327 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2328 if (!dcbx_info)
2329 return -EINVAL;
2330
2331 if (!dcbx_info->operational.ieee) {
2332 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2333 kfree(dcbx_info);
2334 return -EINVAL;
2335 }
2336
2337 kfree(dcbx_info);
2338
2339 memset(&dcbx_set, 0, sizeof(dcbx_set));
2340 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2341 if (rc)
2342 return -EINVAL;
2343
2344 for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2345 entry = &dcbx_set.config.params.app_entry[i];
2346 if ((entry->sf_ieee == sf_ieee) &&
2347 (entry->proto_id == app->protocol))
2348 break;
2349
2350 if (!entry->proto_id) {
2351 dcbx_set.config.params.num_app_entries++;
2352 break;
2353 }
2354 }
2355
2356 if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2357 DP_ERR(cdev, "App table is full\n");
2358 return -EBUSY;
2359 }
2360
2361 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
2362 dcbx_set.config.params.app_entry[i].sf_ieee = sf_ieee;
2363 dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
2364 dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);
2365
2366 ptt = qed_ptt_acquire(hwfn);
2367 if (!ptt)
2368 return -EBUSY;
2369
2370 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2371
2372 qed_ptt_release(hwfn, ptt);
2373
2374 return rc;
2375}
2376
2377const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = {
2378 .getstate = qed_dcbnl_getstate,
2379 .setstate = qed_dcbnl_setstate,
2380 .getpgtccfgtx = qed_dcbnl_getpgtccfgtx,
2381 .getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx,
2382 .getpgtccfgrx = qed_dcbnl_getpgtccfgrx,
2383 .getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx,
2384 .getpfccfg = qed_dcbnl_getpfccfg,
2385 .setpfccfg = qed_dcbnl_setpfccfg,
2386 .getcap = qed_dcbnl_getcap,
2387 .getnumtcs = qed_dcbnl_getnumtcs,
2388 .getpfcstate = qed_dcbnl_getpfcstate,
2389 .getdcbx = qed_dcbnl_getdcbx,
2390 .setpgtccfgtx = qed_dcbnl_setpgtccfgtx,
2391 .setpgtccfgrx = qed_dcbnl_setpgtccfgrx,
2392 .setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx,
2393 .setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx,
2394 .setall = qed_dcbnl_setall,
2395 .setnumtcs = qed_dcbnl_setnumtcs,
2396 .setpfcstate = qed_dcbnl_setpfcstate,
2397 .setapp = qed_dcbnl_setapp,
2398 .setdcbx = qed_dcbnl_setdcbx,
2399 .setfeatcfg = qed_dcbnl_setfeatcfg,
2400 .getfeatcfg = qed_dcbnl_getfeatcfg,
2401 .getapp = qed_dcbnl_getapp,
2402 .peer_getappinfo = qed_dcbnl_peer_getappinfo,
2403 .peer_getapptable = qed_dcbnl_peer_getapptable,
2404 .cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc,
2405 .cee_peer_getpg = qed_dcbnl_cee_peer_getpg,
2406 .ieee_getpfc = qed_dcbnl_ieee_getpfc,
2407 .ieee_setpfc = qed_dcbnl_ieee_setpfc,
2408 .ieee_getets = qed_dcbnl_ieee_getets,
2409 .ieee_setets = qed_dcbnl_ieee_setets,
2410 .ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc,
2411 .ieee_peer_getets = qed_dcbnl_ieee_peer_getets,
2412 .ieee_getapp = qed_dcbnl_ieee_getapp,
2413 .ieee_setapp = qed_dcbnl_ieee_setapp,
2414};
2415
2416#endif
2417
