1
2
3
4
5
6
7
8
9
10
11#include <linux/netdevice.h>
12#include <linux/types.h>
13#include <linux/errno.h>
14#include <linux/rtnetlink.h>
15#include <linux/interrupt.h>
16#include <linux/pci.h>
17#include <linux/etherdevice.h>
18#include <rdma/ib_verbs.h>
19#include "bnxt_hsi.h"
20#include "bnxt.h"
21#include "bnxt_dcb.h"
22
23#ifdef CONFIG_BNXT_DCB
24static int bnxt_queue_to_tc(struct bnxt *bp, u8 queue_id)
25{
26 int i, j;
27
28 for (i = 0; i < bp->max_tc; i++) {
29 if (bp->q_info[i].queue_id == queue_id) {
30 for (j = 0; j < bp->max_tc; j++) {
31 if (bp->tc_to_qidx[j] == i)
32 return j;
33 }
34 }
35 }
36 return -EINVAL;
37}
38
39static int bnxt_hwrm_queue_pri2cos_cfg(struct bnxt *bp, struct ieee_ets *ets)
40{
41 struct hwrm_queue_pri2cos_cfg_input req = {0};
42 u8 *pri2cos;
43 int i;
44
45 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_PRI2COS_CFG, -1, -1);
46 req.flags = cpu_to_le32(QUEUE_PRI2COS_CFG_REQ_FLAGS_PATH_BIDIR |
47 QUEUE_PRI2COS_CFG_REQ_FLAGS_IVLAN);
48
49 pri2cos = &req.pri0_cos_queue_id;
50 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
51 u8 qidx;
52
53 req.enables |= cpu_to_le32(
54 QUEUE_PRI2COS_CFG_REQ_ENABLES_PRI0_COS_QUEUE_ID << i);
55
56 qidx = bp->tc_to_qidx[ets->prio_tc[i]];
57 pri2cos[i] = bp->q_info[qidx].queue_id;
58 }
59 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
60}
61
62static int bnxt_hwrm_queue_pri2cos_qcfg(struct bnxt *bp, struct ieee_ets *ets)
63{
64 struct hwrm_queue_pri2cos_qcfg_output *resp = bp->hwrm_cmd_resp_addr;
65 struct hwrm_queue_pri2cos_qcfg_input req = {0};
66 int rc = 0;
67
68 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_PRI2COS_QCFG, -1, -1);
69 req.flags = cpu_to_le32(QUEUE_PRI2COS_QCFG_REQ_FLAGS_IVLAN);
70
71 mutex_lock(&bp->hwrm_cmd_lock);
72 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
73 if (!rc) {
74 u8 *pri2cos = &resp->pri0_cos_queue_id;
75 int i;
76
77 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
78 u8 queue_id = pri2cos[i];
79 int tc;
80
81 tc = bnxt_queue_to_tc(bp, queue_id);
82 if (tc >= 0)
83 ets->prio_tc[i] = tc;
84 }
85 }
86 mutex_unlock(&bp->hwrm_cmd_lock);
87 return rc;
88}
89
90static int bnxt_hwrm_queue_cos2bw_cfg(struct bnxt *bp, struct ieee_ets *ets,
91 u8 max_tc)
92{
93 struct hwrm_queue_cos2bw_cfg_input req = {0};
94 struct bnxt_cos2bw_cfg cos2bw;
95 void *data;
96 int i;
97
98 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_COS2BW_CFG, -1, -1);
99 for (i = 0; i < max_tc; i++) {
100 u8 qidx = bp->tc_to_qidx[i];
101
102 req.enables |= cpu_to_le32(
103 QUEUE_COS2BW_CFG_REQ_ENABLES_COS_QUEUE_ID0_VALID <<
104 qidx);
105
106 memset(&cos2bw, 0, sizeof(cos2bw));
107 cos2bw.queue_id = bp->q_info[qidx].queue_id;
108 if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_STRICT) {
109 cos2bw.tsa =
110 QUEUE_COS2BW_QCFG_RESP_QUEUE_ID0_TSA_ASSIGN_SP;
111 cos2bw.pri_lvl = i;
112 } else {
113 cos2bw.tsa =
114 QUEUE_COS2BW_QCFG_RESP_QUEUE_ID0_TSA_ASSIGN_ETS;
115 cos2bw.bw_weight = ets->tc_tx_bw[i];
116
117
118
119 cos2bw.min_bw =
120 cpu_to_le32((ets->tc_tx_bw[i] * 100) |
121 BW_VALUE_UNIT_PERCENT1_100);
122 }
123 data = &req.unused_0 + qidx * (sizeof(cos2bw) - 4);
124 memcpy(data, &cos2bw.queue_id, sizeof(cos2bw) - 4);
125 if (qidx == 0) {
126 req.queue_id0 = cos2bw.queue_id;
127 req.unused_0 = 0;
128 }
129 }
130 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
131}
132
133static int bnxt_hwrm_queue_cos2bw_qcfg(struct bnxt *bp, struct ieee_ets *ets)
134{
135 struct hwrm_queue_cos2bw_qcfg_output *resp = bp->hwrm_cmd_resp_addr;
136 struct hwrm_queue_cos2bw_qcfg_input req = {0};
137 struct bnxt_cos2bw_cfg cos2bw;
138 void *data;
139 int rc, i;
140
141 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_COS2BW_QCFG, -1, -1);
142
143 mutex_lock(&bp->hwrm_cmd_lock);
144 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
145 if (rc) {
146 mutex_unlock(&bp->hwrm_cmd_lock);
147 return rc;
148 }
149
150 data = &resp->queue_id0 + offsetof(struct bnxt_cos2bw_cfg, queue_id);
151 for (i = 0; i < bp->max_tc; i++, data += sizeof(cos2bw) - 4) {
152 int tc;
153
154 memcpy(&cos2bw.queue_id, data, sizeof(cos2bw) - 4);
155 if (i == 0)
156 cos2bw.queue_id = resp->queue_id0;
157
158 tc = bnxt_queue_to_tc(bp, cos2bw.queue_id);
159 if (tc < 0)
160 continue;
161
162 if (cos2bw.tsa ==
163 QUEUE_COS2BW_QCFG_RESP_QUEUE_ID0_TSA_ASSIGN_SP) {
164 ets->tc_tsa[tc] = IEEE_8021QAZ_TSA_STRICT;
165 } else {
166 ets->tc_tsa[tc] = IEEE_8021QAZ_TSA_ETS;
167 ets->tc_tx_bw[tc] = cos2bw.bw_weight;
168 }
169 }
170 mutex_unlock(&bp->hwrm_cmd_lock);
171 return 0;
172}
173
174static int bnxt_queue_remap(struct bnxt *bp, unsigned int lltc_mask)
175{
176 unsigned long qmap = 0;
177 int max = bp->max_tc;
178 int i, j, rc;
179
180
181 for (i = 0, j = 0; i < max; ) {
182 if (lltc_mask & (1 << i)) {
183 if (BNXT_LLQ(bp->q_info[j].queue_profile)) {
184 bp->tc_to_qidx[i] = j;
185 __set_bit(j, &qmap);
186 i++;
187 }
188 j++;
189 continue;
190 }
191 i++;
192 }
193
194 for (i = 0, j = 0; i < max; i++) {
195 if (lltc_mask & (1 << i))
196 continue;
197 j = find_next_zero_bit(&qmap, max, j);
198 bp->tc_to_qidx[i] = j;
199 __set_bit(j, &qmap);
200 j++;
201 }
202
203 if (netif_running(bp->dev)) {
204 bnxt_close_nic(bp, false, false);
205 rc = bnxt_open_nic(bp, false, false);
206 if (rc) {
207 netdev_warn(bp->dev, "failed to open NIC, rc = %d\n", rc);
208 return rc;
209 }
210 }
211 if (bp->ieee_ets) {
212 int tc = netdev_get_num_tc(bp->dev);
213
214 if (!tc)
215 tc = 1;
216 rc = bnxt_hwrm_queue_cos2bw_cfg(bp, bp->ieee_ets, tc);
217 if (rc) {
218 netdev_warn(bp->dev, "failed to config BW, rc = %d\n", rc);
219 return rc;
220 }
221 rc = bnxt_hwrm_queue_pri2cos_cfg(bp, bp->ieee_ets);
222 if (rc) {
223 netdev_warn(bp->dev, "failed to config prio, rc = %d\n", rc);
224 return rc;
225 }
226 }
227 return 0;
228}
229
230static int bnxt_hwrm_queue_pfc_cfg(struct bnxt *bp, struct ieee_pfc *pfc)
231{
232 struct hwrm_queue_pfcenable_cfg_input req = {0};
233 struct ieee_ets *my_ets = bp->ieee_ets;
234 unsigned int tc_mask = 0, pri_mask = 0;
235 u8 i, pri, lltc_count = 0;
236 bool need_q_remap = false;
237
238 if (!my_ets)
239 return -EINVAL;
240
241 for (i = 0; i < bp->max_tc; i++) {
242 for (pri = 0; pri < IEEE_8021QAZ_MAX_TCS; pri++) {
243 if ((pfc->pfc_en & (1 << pri)) &&
244 (my_ets->prio_tc[pri] == i)) {
245 pri_mask |= 1 << pri;
246 tc_mask |= 1 << i;
247 }
248 }
249 if (tc_mask & (1 << i))
250 lltc_count++;
251 }
252 if (lltc_count > bp->max_lltc)
253 return -EINVAL;
254
255 for (i = 0; i < bp->max_tc; i++) {
256 if (tc_mask & (1 << i)) {
257 u8 qidx = bp->tc_to_qidx[i];
258
259 if (!BNXT_LLQ(bp->q_info[qidx].queue_profile)) {
260 need_q_remap = true;
261 break;
262 }
263 }
264 }
265
266 if (need_q_remap)
267 bnxt_queue_remap(bp, tc_mask);
268
269 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_PFCENABLE_CFG, -1, -1);
270 req.flags = cpu_to_le32(pri_mask);
271 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
272}
273
274static int bnxt_hwrm_queue_pfc_qcfg(struct bnxt *bp, struct ieee_pfc *pfc)
275{
276 struct hwrm_queue_pfcenable_qcfg_output *resp = bp->hwrm_cmd_resp_addr;
277 struct hwrm_queue_pfcenable_qcfg_input req = {0};
278 u8 pri_mask;
279 int rc;
280
281 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_PFCENABLE_QCFG, -1, -1);
282
283 mutex_lock(&bp->hwrm_cmd_lock);
284 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
285 if (rc) {
286 mutex_unlock(&bp->hwrm_cmd_lock);
287 return rc;
288 }
289
290 pri_mask = le32_to_cpu(resp->flags);
291 pfc->pfc_en = pri_mask;
292 mutex_unlock(&bp->hwrm_cmd_lock);
293 return 0;
294}
295
296static int bnxt_hwrm_set_dcbx_app(struct bnxt *bp, struct dcb_app *app,
297 bool add)
298{
299 struct hwrm_fw_set_structured_data_input set = {0};
300 struct hwrm_fw_get_structured_data_input get = {0};
301 struct hwrm_struct_data_dcbx_app *fw_app;
302 struct hwrm_struct_hdr *data;
303 dma_addr_t mapping;
304 size_t data_len;
305 int rc, n, i;
306
307 if (bp->hwrm_spec_code < 0x10601)
308 return 0;
309
310 n = IEEE_8021QAZ_MAX_TCS;
311 data_len = sizeof(*data) + sizeof(*fw_app) * n;
312 data = dma_alloc_coherent(&bp->pdev->dev, data_len, &mapping,
313 GFP_KERNEL);
314 if (!data)
315 return -ENOMEM;
316
317 bnxt_hwrm_cmd_hdr_init(bp, &get, HWRM_FW_GET_STRUCTURED_DATA, -1, -1);
318 get.dest_data_addr = cpu_to_le64(mapping);
319 get.structure_id = cpu_to_le16(STRUCT_HDR_STRUCT_ID_DCBX_APP);
320 get.subtype = cpu_to_le16(HWRM_STRUCT_DATA_SUBTYPE_HOST_OPERATIONAL);
321 get.count = 0;
322 rc = hwrm_send_message(bp, &get, sizeof(get), HWRM_CMD_TIMEOUT);
323 if (rc)
324 goto set_app_exit;
325
326 fw_app = (struct hwrm_struct_data_dcbx_app *)(data + 1);
327
328 if (data->struct_id != cpu_to_le16(STRUCT_HDR_STRUCT_ID_DCBX_APP)) {
329 rc = -ENODEV;
330 goto set_app_exit;
331 }
332
333 n = data->count;
334 for (i = 0; i < n; i++, fw_app++) {
335 if (fw_app->protocol_id == cpu_to_be16(app->protocol) &&
336 fw_app->protocol_selector == app->selector &&
337 fw_app->priority == app->priority) {
338 if (add)
339 goto set_app_exit;
340 else
341 break;
342 }
343 }
344 if (add) {
345
346 n++;
347 fw_app->protocol_id = cpu_to_be16(app->protocol);
348 fw_app->protocol_selector = app->selector;
349 fw_app->priority = app->priority;
350 fw_app->valid = 1;
351 } else {
352 size_t len = 0;
353
354
355 if (n == i)
356 goto set_app_exit;
357
358 len = (n - 1 - i) * sizeof(*fw_app);
359 if (len)
360 memmove(fw_app, fw_app + 1, len);
361 n--;
362 memset(fw_app + n, 0, sizeof(*fw_app));
363 }
364 data->count = n;
365 data->len = cpu_to_le16(sizeof(*fw_app) * n);
366 data->subtype = cpu_to_le16(HWRM_STRUCT_DATA_SUBTYPE_HOST_OPERATIONAL);
367
368 bnxt_hwrm_cmd_hdr_init(bp, &set, HWRM_FW_SET_STRUCTURED_DATA, -1, -1);
369 set.src_data_addr = cpu_to_le64(mapping);
370 set.data_len = cpu_to_le16(sizeof(*data) + sizeof(*fw_app) * n);
371 set.hdr_cnt = 1;
372 rc = hwrm_send_message(bp, &set, sizeof(set), HWRM_CMD_TIMEOUT);
373
374set_app_exit:
375 dma_free_coherent(&bp->pdev->dev, data_len, data, mapping);
376 return rc;
377}
378
379static int bnxt_hwrm_queue_dscp_qcaps(struct bnxt *bp)
380{
381 struct hwrm_queue_dscp_qcaps_output *resp = bp->hwrm_cmd_resp_addr;
382 struct hwrm_queue_dscp_qcaps_input req = {0};
383 int rc;
384
385 bp->max_dscp_value = 0;
386 if (bp->hwrm_spec_code < 0x10800 || BNXT_VF(bp))
387 return 0;
388
389 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_DSCP_QCAPS, -1, -1);
390 mutex_lock(&bp->hwrm_cmd_lock);
391 rc = _hwrm_send_message_silent(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
392 if (!rc) {
393 bp->max_dscp_value = (1 << resp->num_dscp_bits) - 1;
394 if (bp->max_dscp_value < 0x3f)
395 bp->max_dscp_value = 0;
396 }
397
398 mutex_unlock(&bp->hwrm_cmd_lock);
399 return rc;
400}
401
402static int bnxt_hwrm_queue_dscp2pri_cfg(struct bnxt *bp, struct dcb_app *app,
403 bool add)
404{
405 struct hwrm_queue_dscp2pri_cfg_input req = {0};
406 struct bnxt_dscp2pri_entry *dscp2pri;
407 dma_addr_t mapping;
408 int rc;
409
410 if (bp->hwrm_spec_code < 0x10800)
411 return 0;
412
413 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_DSCP2PRI_CFG, -1, -1);
414 dscp2pri = dma_alloc_coherent(&bp->pdev->dev, sizeof(*dscp2pri),
415 &mapping, GFP_KERNEL);
416 if (!dscp2pri)
417 return -ENOMEM;
418
419 req.src_data_addr = cpu_to_le64(mapping);
420 dscp2pri->dscp = app->protocol;
421 if (add)
422 dscp2pri->mask = 0x3f;
423 else
424 dscp2pri->mask = 0;
425 dscp2pri->pri = app->priority;
426 req.entry_cnt = cpu_to_le16(1);
427 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
428 dma_free_coherent(&bp->pdev->dev, sizeof(*dscp2pri), dscp2pri,
429 mapping);
430 return rc;
431}
432
433static int bnxt_ets_validate(struct bnxt *bp, struct ieee_ets *ets, u8 *tc)
434{
435 int total_ets_bw = 0;
436 u8 max_tc = 0;
437 int i;
438
439 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
440 if (ets->prio_tc[i] > bp->max_tc) {
441 netdev_err(bp->dev, "priority to TC mapping exceeds TC count %d\n",
442 ets->prio_tc[i]);
443 return -EINVAL;
444 }
445 if (ets->prio_tc[i] > max_tc)
446 max_tc = ets->prio_tc[i];
447
448 if ((ets->tc_tx_bw[i] || ets->tc_tsa[i]) && i > bp->max_tc)
449 return -EINVAL;
450
451 switch (ets->tc_tsa[i]) {
452 case IEEE_8021QAZ_TSA_STRICT:
453 break;
454 case IEEE_8021QAZ_TSA_ETS:
455 total_ets_bw += ets->tc_tx_bw[i];
456 break;
457 default:
458 return -ENOTSUPP;
459 }
460 }
461 if (total_ets_bw > 100)
462 return -EINVAL;
463
464 if (max_tc >= bp->max_tc)
465 *tc = bp->max_tc;
466 else
467 *tc = max_tc + 1;
468 return 0;
469}
470
471static int bnxt_dcbnl_ieee_getets(struct net_device *dev, struct ieee_ets *ets)
472{
473 struct bnxt *bp = netdev_priv(dev);
474 struct ieee_ets *my_ets = bp->ieee_ets;
475 int rc;
476
477 ets->ets_cap = bp->max_tc;
478
479 if (!my_ets) {
480 if (bp->dcbx_cap & DCB_CAP_DCBX_HOST)
481 return 0;
482
483 my_ets = kzalloc(sizeof(*my_ets), GFP_KERNEL);
484 if (!my_ets)
485 return -ENOMEM;
486 rc = bnxt_hwrm_queue_cos2bw_qcfg(bp, my_ets);
487 if (rc)
488 goto error;
489 rc = bnxt_hwrm_queue_pri2cos_qcfg(bp, my_ets);
490 if (rc)
491 goto error;
492
493
494 bp->ieee_ets = my_ets;
495 }
496
497 ets->cbs = my_ets->cbs;
498 memcpy(ets->tc_tx_bw, my_ets->tc_tx_bw, sizeof(ets->tc_tx_bw));
499 memcpy(ets->tc_rx_bw, my_ets->tc_rx_bw, sizeof(ets->tc_rx_bw));
500 memcpy(ets->tc_tsa, my_ets->tc_tsa, sizeof(ets->tc_tsa));
501 memcpy(ets->prio_tc, my_ets->prio_tc, sizeof(ets->prio_tc));
502 return 0;
503error:
504 kfree(my_ets);
505 return rc;
506}
507
508static int bnxt_dcbnl_ieee_setets(struct net_device *dev, struct ieee_ets *ets)
509{
510 struct bnxt *bp = netdev_priv(dev);
511 struct ieee_ets *my_ets = bp->ieee_ets;
512 u8 max_tc = 0;
513 int rc, i;
514
515 if (!(bp->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) ||
516 !(bp->dcbx_cap & DCB_CAP_DCBX_HOST))
517 return -EINVAL;
518
519 rc = bnxt_ets_validate(bp, ets, &max_tc);
520 if (!rc) {
521 if (!my_ets) {
522 my_ets = kzalloc(sizeof(*my_ets), GFP_KERNEL);
523 if (!my_ets)
524 return -ENOMEM;
525
526 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
527 my_ets->prio_tc[i] = IEEE_8021QAZ_MAX_TCS;
528 bp->ieee_ets = my_ets;
529 }
530 rc = bnxt_setup_mq_tc(dev, max_tc);
531 if (rc)
532 return rc;
533 rc = bnxt_hwrm_queue_cos2bw_cfg(bp, ets, max_tc);
534 if (rc)
535 return rc;
536 rc = bnxt_hwrm_queue_pri2cos_cfg(bp, ets);
537 if (rc)
538 return rc;
539 memcpy(my_ets, ets, sizeof(*my_ets));
540 }
541 return rc;
542}
543
544static int bnxt_dcbnl_ieee_getpfc(struct net_device *dev, struct ieee_pfc *pfc)
545{
546 struct bnxt *bp = netdev_priv(dev);
547 __le64 *stats = bp->port_stats.hw_stats;
548 struct ieee_pfc *my_pfc = bp->ieee_pfc;
549 long rx_off, tx_off;
550 int i, rc;
551
552 pfc->pfc_cap = bp->max_lltc;
553
554 if (!my_pfc) {
555 if (bp->dcbx_cap & DCB_CAP_DCBX_HOST)
556 return 0;
557
558 my_pfc = kzalloc(sizeof(*my_pfc), GFP_KERNEL);
559 if (!my_pfc)
560 return 0;
561 bp->ieee_pfc = my_pfc;
562 rc = bnxt_hwrm_queue_pfc_qcfg(bp, my_pfc);
563 if (rc)
564 return 0;
565 }
566
567 pfc->pfc_en = my_pfc->pfc_en;
568 pfc->mbc = my_pfc->mbc;
569 pfc->delay = my_pfc->delay;
570
571 if (!stats)
572 return 0;
573
574 rx_off = BNXT_RX_STATS_OFFSET(rx_pfc_ena_frames_pri0);
575 tx_off = BNXT_TX_STATS_OFFSET(tx_pfc_ena_frames_pri0);
576 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++, rx_off++, tx_off++) {
577 pfc->requests[i] = le64_to_cpu(*(stats + tx_off));
578 pfc->indications[i] = le64_to_cpu(*(stats + rx_off));
579 }
580
581 return 0;
582}
583
584static int bnxt_dcbnl_ieee_setpfc(struct net_device *dev, struct ieee_pfc *pfc)
585{
586 struct bnxt *bp = netdev_priv(dev);
587 struct ieee_pfc *my_pfc = bp->ieee_pfc;
588 int rc;
589
590 if (!(bp->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) ||
591 !(bp->dcbx_cap & DCB_CAP_DCBX_HOST))
592 return -EINVAL;
593
594 if (!my_pfc) {
595 my_pfc = kzalloc(sizeof(*my_pfc), GFP_KERNEL);
596 if (!my_pfc)
597 return -ENOMEM;
598 bp->ieee_pfc = my_pfc;
599 }
600 rc = bnxt_hwrm_queue_pfc_cfg(bp, pfc);
601 if (!rc)
602 memcpy(my_pfc, pfc, sizeof(*my_pfc));
603
604 return rc;
605}
606
607static int bnxt_dcbnl_ieee_dscp_app_prep(struct bnxt *bp, struct dcb_app *app)
608{
609 if (app->selector == IEEE_8021QAZ_APP_SEL_DSCP) {
610 if (!bp->max_dscp_value)
611 return -ENOTSUPP;
612 if (app->protocol > bp->max_dscp_value)
613 return -EINVAL;
614 }
615 return 0;
616}
617
618static int bnxt_dcbnl_ieee_setapp(struct net_device *dev, struct dcb_app *app)
619{
620 struct bnxt *bp = netdev_priv(dev);
621 int rc;
622
623 if (!(bp->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) ||
624 !(bp->dcbx_cap & DCB_CAP_DCBX_HOST))
625 return -EINVAL;
626
627 rc = bnxt_dcbnl_ieee_dscp_app_prep(bp, app);
628 if (rc)
629 return rc;
630
631 rc = dcb_ieee_setapp(dev, app);
632 if (rc)
633 return rc;
634
635 if ((app->selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE &&
636 app->protocol == ETH_P_IBOE) ||
637 (app->selector == IEEE_8021QAZ_APP_SEL_DGRAM &&
638 app->protocol == ROCE_V2_UDP_DPORT))
639 rc = bnxt_hwrm_set_dcbx_app(bp, app, true);
640
641 if (app->selector == IEEE_8021QAZ_APP_SEL_DSCP)
642 rc = bnxt_hwrm_queue_dscp2pri_cfg(bp, app, true);
643
644 return rc;
645}
646
647static int bnxt_dcbnl_ieee_delapp(struct net_device *dev, struct dcb_app *app)
648{
649 struct bnxt *bp = netdev_priv(dev);
650 int rc;
651
652 if (!(bp->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) ||
653 !(bp->dcbx_cap & DCB_CAP_DCBX_HOST))
654 return -EINVAL;
655
656 rc = bnxt_dcbnl_ieee_dscp_app_prep(bp, app);
657 if (rc)
658 return rc;
659
660 rc = dcb_ieee_delapp(dev, app);
661 if (rc)
662 return rc;
663 if ((app->selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE &&
664 app->protocol == ETH_P_IBOE) ||
665 (app->selector == IEEE_8021QAZ_APP_SEL_DGRAM &&
666 app->protocol == ROCE_V2_UDP_DPORT))
667 rc = bnxt_hwrm_set_dcbx_app(bp, app, false);
668
669 if (app->selector == IEEE_8021QAZ_APP_SEL_DSCP)
670 rc = bnxt_hwrm_queue_dscp2pri_cfg(bp, app, false);
671
672 return rc;
673}
674
675static u8 bnxt_dcbnl_getdcbx(struct net_device *dev)
676{
677 struct bnxt *bp = netdev_priv(dev);
678
679 return bp->dcbx_cap;
680}
681
682static u8 bnxt_dcbnl_setdcbx(struct net_device *dev, u8 mode)
683{
684 struct bnxt *bp = netdev_priv(dev);
685
686
687 if (bp->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED)
688 return 1;
689
690 if (mode & DCB_CAP_DCBX_HOST) {
691 if (BNXT_VF(bp) || (bp->fw_cap & BNXT_FW_CAP_LLDP_AGENT))
692 return 1;
693
694
695 if ((mode & DCB_CAP_DCBX_VER_CEE) ||
696 !(mode & DCB_CAP_DCBX_VER_IEEE))
697 return 1;
698 }
699
700 if (mode == bp->dcbx_cap)
701 return 0;
702
703 bp->dcbx_cap = mode;
704 return 0;
705}
706
707static const struct dcbnl_rtnl_ops dcbnl_ops = {
708 .ieee_getets = bnxt_dcbnl_ieee_getets,
709 .ieee_setets = bnxt_dcbnl_ieee_setets,
710 .ieee_getpfc = bnxt_dcbnl_ieee_getpfc,
711 .ieee_setpfc = bnxt_dcbnl_ieee_setpfc,
712 .ieee_setapp = bnxt_dcbnl_ieee_setapp,
713 .ieee_delapp = bnxt_dcbnl_ieee_delapp,
714 .getdcbx = bnxt_dcbnl_getdcbx,
715 .setdcbx = bnxt_dcbnl_setdcbx,
716};
717
718void bnxt_dcb_init(struct bnxt *bp)
719{
720 bp->dcbx_cap = 0;
721 if (bp->hwrm_spec_code < 0x10501)
722 return;
723
724 bnxt_hwrm_queue_dscp_qcaps(bp);
725 bp->dcbx_cap = DCB_CAP_DCBX_VER_IEEE;
726 if (BNXT_PF(bp) && !(bp->fw_cap & BNXT_FW_CAP_LLDP_AGENT))
727 bp->dcbx_cap |= DCB_CAP_DCBX_HOST;
728 else if (bp->fw_cap & BNXT_FW_CAP_DCBX_AGENT)
729 bp->dcbx_cap |= DCB_CAP_DCBX_LLD_MANAGED;
730 bp->dev->dcbnl_ops = &dcbnl_ops;
731}
732
733void bnxt_dcb_free(struct bnxt *bp)
734{
735 kfree(bp->ieee_pfc);
736 kfree(bp->ieee_ets);
737 bp->ieee_pfc = NULL;
738 bp->ieee_ets = NULL;
739}
740
741#else
742
743void bnxt_dcb_init(struct bnxt *bp)
744{
745}
746
747void bnxt_dcb_free(struct bnxt *bp)
748{
749}
750
751#endif
752
