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8#include <linux/types.h>
9#include "qlcnic.h"
10
11#define QLC_DCB_NUM_PARAM 3
12#define QLC_DCB_LOCAL_IDX 0
13#define QLC_DCB_OPER_IDX 1
14#define QLC_DCB_PEER_IDX 2
15
16#define QLC_DCB_GET_MAP(V) (1 << V)
17
18#define QLC_DCB_FW_VER 0x2
19#define QLC_DCB_MAX_TC 0x8
20#define QLC_DCB_MAX_APP 0x8
21#define QLC_DCB_MAX_PRIO QLC_DCB_MAX_TC
22#define QLC_DCB_MAX_PG QLC_DCB_MAX_TC
23
24#define QLC_DCB_TSA_SUPPORT(V) (V & 0x1)
25#define QLC_DCB_ETS_SUPPORT(V) ((V >> 1) & 0x1)
26#define QLC_DCB_VERSION_SUPPORT(V) ((V >> 2) & 0xf)
27#define QLC_DCB_MAX_NUM_TC(V) ((V >> 20) & 0xf)
28#define QLC_DCB_MAX_NUM_ETS_TC(V) ((V >> 24) & 0xf)
29#define QLC_DCB_MAX_NUM_PFC_TC(V) ((V >> 28) & 0xf)
30#define QLC_DCB_GET_TC_PRIO(X, P) ((X >> (P * 3)) & 0x7)
31#define QLC_DCB_GET_PGID_PRIO(X, P) ((X >> (P * 8)) & 0xff)
32#define QLC_DCB_GET_BWPER_PG(X, P) ((X >> (P * 8)) & 0xff)
33#define QLC_DCB_GET_TSA_PG(X, P) ((X >> (P * 8)) & 0xff)
34#define QLC_DCB_GET_PFC_PRIO(X, P) (((X >> 24) >> P) & 0x1)
35#define QLC_DCB_GET_PROTO_ID_APP(X) ((X >> 8) & 0xffff)
36#define QLC_DCB_GET_SELECTOR_APP(X) (X & 0xff)
37
38#define QLC_DCB_LOCAL_PARAM_FWID 0x3
39#define QLC_DCB_OPER_PARAM_FWID 0x1
40#define QLC_DCB_PEER_PARAM_FWID 0x2
41
42#define QLC_83XX_DCB_GET_NUMAPP(X) ((X >> 2) & 0xf)
43#define QLC_83XX_DCB_TSA_VALID(X) (X & 0x1)
44#define QLC_83XX_DCB_PFC_VALID(X) ((X >> 1) & 0x1)
45#define QLC_83XX_DCB_GET_PRIOMAP_APP(X) (X >> 24)
46
47#define QLC_82XX_DCB_GET_NUMAPP(X) ((X >> 12) & 0xf)
48#define QLC_82XX_DCB_TSA_VALID(X) ((X >> 4) & 0x1)
49#define QLC_82XX_DCB_PFC_VALID(X) ((X >> 5) & 0x1)
50#define QLC_82XX_DCB_GET_PRIOVAL_APP(X) ((X >> 24) & 0x7)
51#define QLC_82XX_DCB_GET_PRIOMAP_APP(X) (1 << X)
52#define QLC_82XX_DCB_PRIO_TC_MAP (0x76543210)
53
54static const struct dcbnl_rtnl_ops qlcnic_dcbnl_ops;
55
56static void qlcnic_dcb_aen_work(struct work_struct *);
57static void qlcnic_dcb_data_cee_param_map(struct qlcnic_adapter *);
58
59static inline void __qlcnic_init_dcbnl_ops(struct qlcnic_dcb *);
60static void __qlcnic_dcb_free(struct qlcnic_dcb *);
61static int __qlcnic_dcb_attach(struct qlcnic_dcb *);
62static int __qlcnic_dcb_query_hw_capability(struct qlcnic_dcb *, char *);
63static void __qlcnic_dcb_get_info(struct qlcnic_dcb *);
64
65static int qlcnic_82xx_dcb_get_hw_capability(struct qlcnic_dcb *);
66static int qlcnic_82xx_dcb_query_cee_param(struct qlcnic_dcb *, char *, u8);
67static int qlcnic_82xx_dcb_get_cee_cfg(struct qlcnic_dcb *);
68static void qlcnic_82xx_dcb_aen_handler(struct qlcnic_dcb *, void *);
69
70static int qlcnic_83xx_dcb_get_hw_capability(struct qlcnic_dcb *);
71static int qlcnic_83xx_dcb_query_cee_param(struct qlcnic_dcb *, char *, u8);
72static int qlcnic_83xx_dcb_get_cee_cfg(struct qlcnic_dcb *);
73static void qlcnic_83xx_dcb_aen_handler(struct qlcnic_dcb *, void *);
74
75struct qlcnic_dcb_capability {
76 bool tsa_capability;
77 bool ets_capability;
78 u8 max_num_tc;
79 u8 max_ets_tc;
80 u8 max_pfc_tc;
81 u8 dcb_capability;
82};
83
84struct qlcnic_dcb_param {
85 u32 hdr_prio_pfc_map[2];
86 u32 prio_pg_map[2];
87 u32 pg_bw_map[2];
88 u32 pg_tsa_map[2];
89 u32 app[QLC_DCB_MAX_APP];
90};
91
92struct qlcnic_dcb_mbx_params {
93
94 struct qlcnic_dcb_param type[3];
95 u32 prio_tc_map;
96};
97
98struct qlcnic_82xx_dcb_param_mbx_le {
99 __le32 hdr_prio_pfc_map[2];
100 __le32 prio_pg_map[2];
101 __le32 pg_bw_map[2];
102 __le32 pg_tsa_map[2];
103 __le32 app[QLC_DCB_MAX_APP];
104};
105
106enum qlcnic_dcb_selector {
107 QLC_SELECTOR_DEF = 0x0,
108 QLC_SELECTOR_ETHER,
109 QLC_SELECTOR_TCP,
110 QLC_SELECTOR_UDP,
111};
112
113enum qlcnic_dcb_prio_type {
114 QLC_PRIO_NONE = 0,
115 QLC_PRIO_GROUP,
116 QLC_PRIO_LINK,
117};
118
119enum qlcnic_dcb_pfc_type {
120 QLC_PFC_DISABLED = 0,
121 QLC_PFC_FULL,
122 QLC_PFC_TX,
123 QLC_PFC_RX
124};
125
126struct qlcnic_dcb_prio_cfg {
127 bool valid;
128 enum qlcnic_dcb_pfc_type pfc_type;
129};
130
131struct qlcnic_dcb_pg_cfg {
132 bool valid;
133 u8 total_bw_percent;
134 u8 prio_count;
135 u8 tsa_type;
136};
137
138struct qlcnic_dcb_tc_cfg {
139 bool valid;
140 struct qlcnic_dcb_prio_cfg prio_cfg[QLC_DCB_MAX_PRIO];
141 enum qlcnic_dcb_prio_type prio_type;
142 u8 link_percent;
143 u8 bwg_percent;
144 u8 up_tc_map;
145 u8 pgid;
146};
147
148struct qlcnic_dcb_app {
149 bool valid;
150 enum qlcnic_dcb_selector selector;
151 u16 protocol;
152 u8 priority;
153};
154
155struct qlcnic_dcb_cee {
156 struct qlcnic_dcb_tc_cfg tc_cfg[QLC_DCB_MAX_TC];
157 struct qlcnic_dcb_pg_cfg pg_cfg[QLC_DCB_MAX_PG];
158 struct qlcnic_dcb_app app[QLC_DCB_MAX_APP];
159 bool tc_param_valid;
160 bool pfc_mode_enable;
161};
162
163struct qlcnic_dcb_cfg {
164
165 struct qlcnic_dcb_cee type[QLC_DCB_NUM_PARAM];
166 struct qlcnic_dcb_capability capability;
167 u32 version;
168};
169
170static const struct qlcnic_dcb_ops qlcnic_83xx_dcb_ops = {
171 .init_dcbnl_ops = __qlcnic_init_dcbnl_ops,
172 .free = __qlcnic_dcb_free,
173 .attach = __qlcnic_dcb_attach,
174 .query_hw_capability = __qlcnic_dcb_query_hw_capability,
175 .get_info = __qlcnic_dcb_get_info,
176
177 .get_hw_capability = qlcnic_83xx_dcb_get_hw_capability,
178 .query_cee_param = qlcnic_83xx_dcb_query_cee_param,
179 .get_cee_cfg = qlcnic_83xx_dcb_get_cee_cfg,
180 .aen_handler = qlcnic_83xx_dcb_aen_handler,
181};
182
183static const struct qlcnic_dcb_ops qlcnic_82xx_dcb_ops = {
184 .init_dcbnl_ops = __qlcnic_init_dcbnl_ops,
185 .free = __qlcnic_dcb_free,
186 .attach = __qlcnic_dcb_attach,
187 .query_hw_capability = __qlcnic_dcb_query_hw_capability,
188 .get_info = __qlcnic_dcb_get_info,
189
190 .get_hw_capability = qlcnic_82xx_dcb_get_hw_capability,
191 .query_cee_param = qlcnic_82xx_dcb_query_cee_param,
192 .get_cee_cfg = qlcnic_82xx_dcb_get_cee_cfg,
193 .aen_handler = qlcnic_82xx_dcb_aen_handler,
194};
195
196static u8 qlcnic_dcb_get_num_app(struct qlcnic_adapter *adapter, u32 val)
197{
198 if (qlcnic_82xx_check(adapter))
199 return QLC_82XX_DCB_GET_NUMAPP(val);
200 else
201 return QLC_83XX_DCB_GET_NUMAPP(val);
202}
203
204static inline u8 qlcnic_dcb_pfc_hdr_valid(struct qlcnic_adapter *adapter,
205 u32 val)
206{
207 if (qlcnic_82xx_check(adapter))
208 return QLC_82XX_DCB_PFC_VALID(val);
209 else
210 return QLC_83XX_DCB_PFC_VALID(val);
211}
212
213static inline u8 qlcnic_dcb_tsa_hdr_valid(struct qlcnic_adapter *adapter,
214 u32 val)
215{
216 if (qlcnic_82xx_check(adapter))
217 return QLC_82XX_DCB_TSA_VALID(val);
218 else
219 return QLC_83XX_DCB_TSA_VALID(val);
220}
221
222static inline u8 qlcnic_dcb_get_prio_map_app(struct qlcnic_adapter *adapter,
223 u32 val)
224{
225 if (qlcnic_82xx_check(adapter))
226 return QLC_82XX_DCB_GET_PRIOMAP_APP(val);
227 else
228 return QLC_83XX_DCB_GET_PRIOMAP_APP(val);
229}
230
231static int qlcnic_dcb_prio_count(u8 up_tc_map)
232{
233 int j;
234
235 for (j = 0; j < QLC_DCB_MAX_TC; j++)
236 if (up_tc_map & QLC_DCB_GET_MAP(j))
237 break;
238
239 return j;
240}
241
242static inline void __qlcnic_init_dcbnl_ops(struct qlcnic_dcb *dcb)
243{
244 if (test_bit(QLCNIC_DCB_STATE, &dcb->state))
245 dcb->adapter->netdev->dcbnl_ops = &qlcnic_dcbnl_ops;
246}
247
248static void qlcnic_set_dcb_ops(struct qlcnic_adapter *adapter)
249{
250 if (qlcnic_82xx_check(adapter))
251 adapter->dcb->ops = &qlcnic_82xx_dcb_ops;
252 else if (qlcnic_83xx_check(adapter))
253 adapter->dcb->ops = &qlcnic_83xx_dcb_ops;
254}
255
256int qlcnic_register_dcb(struct qlcnic_adapter *adapter)
257{
258 struct qlcnic_dcb *dcb;
259
260 if (qlcnic_sriov_vf_check(adapter))
261 return 0;
262
263 dcb = kzalloc(sizeof(struct qlcnic_dcb), GFP_ATOMIC);
264 if (!dcb)
265 return -ENOMEM;
266
267 adapter->dcb = dcb;
268 dcb->adapter = adapter;
269 qlcnic_set_dcb_ops(adapter);
270 dcb->state = 0;
271
272 return 0;
273}
274
275static void __qlcnic_dcb_free(struct qlcnic_dcb *dcb)
276{
277 struct qlcnic_adapter *adapter;
278
279 if (!dcb)
280 return;
281
282 adapter = dcb->adapter;
283
284 while (test_bit(QLCNIC_DCB_AEN_MODE, &dcb->state))
285 usleep_range(10000, 11000);
286
287 cancel_delayed_work_sync(&dcb->aen_work);
288
289 if (dcb->wq) {
290 destroy_workqueue(dcb->wq);
291 dcb->wq = NULL;
292 }
293
294 kfree(dcb->cfg);
295 dcb->cfg = NULL;
296 kfree(dcb->param);
297 dcb->param = NULL;
298 kfree(dcb);
299 adapter->dcb = NULL;
300}
301
302static void __qlcnic_dcb_get_info(struct qlcnic_dcb *dcb)
303{
304 qlcnic_dcb_get_hw_capability(dcb);
305 qlcnic_dcb_get_cee_cfg(dcb);
306}
307
308static int __qlcnic_dcb_attach(struct qlcnic_dcb *dcb)
309{
310 int err = 0;
311
312 INIT_DELAYED_WORK(&dcb->aen_work, qlcnic_dcb_aen_work);
313
314 dcb->wq = create_singlethread_workqueue("qlcnic-dcb");
315 if (!dcb->wq) {
316 dev_err(&dcb->adapter->pdev->dev,
317 "DCB workqueue allocation failed. DCB will be disabled\n");
318 return -1;
319 }
320
321 dcb->cfg = kzalloc(sizeof(struct qlcnic_dcb_cfg), GFP_ATOMIC);
322 if (!dcb->cfg) {
323 err = -ENOMEM;
324 goto out_free_wq;
325 }
326
327 dcb->param = kzalloc(sizeof(struct qlcnic_dcb_mbx_params), GFP_ATOMIC);
328 if (!dcb->param) {
329 err = -ENOMEM;
330 goto out_free_cfg;
331 }
332
333 return 0;
334out_free_cfg:
335 kfree(dcb->cfg);
336 dcb->cfg = NULL;
337
338out_free_wq:
339 destroy_workqueue(dcb->wq);
340 dcb->wq = NULL;
341
342 return err;
343}
344
345static int __qlcnic_dcb_query_hw_capability(struct qlcnic_dcb *dcb, char *buf)
346{
347 struct qlcnic_adapter *adapter = dcb->adapter;
348 struct qlcnic_cmd_args cmd;
349 u32 mbx_out;
350 int err;
351
352 err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_DCB_QUERY_CAP);
353 if (err)
354 return err;
355
356 err = qlcnic_issue_cmd(adapter, &cmd);
357 if (err) {
358 dev_err(&adapter->pdev->dev,
359 "Failed to query DCBX capability, err %d\n", err);
360 } else {
361 mbx_out = cmd.rsp.arg[1];
362 if (buf)
363 memcpy(buf, &mbx_out, sizeof(u32));
364 }
365
366 qlcnic_free_mbx_args(&cmd);
367
368 return err;
369}
370
371static int __qlcnic_dcb_get_capability(struct qlcnic_dcb *dcb, u32 *val)
372{
373 struct qlcnic_dcb_capability *cap = &dcb->cfg->capability;
374 u32 mbx_out;
375 int err;
376
377 memset(cap, 0, sizeof(struct qlcnic_dcb_capability));
378
379 err = qlcnic_dcb_query_hw_capability(dcb, (char *)val);
380 if (err)
381 return err;
382
383 mbx_out = *val;
384 if (QLC_DCB_TSA_SUPPORT(mbx_out))
385 cap->tsa_capability = true;
386
387 if (QLC_DCB_ETS_SUPPORT(mbx_out))
388 cap->ets_capability = true;
389
390 cap->max_num_tc = QLC_DCB_MAX_NUM_TC(mbx_out);
391 cap->max_ets_tc = QLC_DCB_MAX_NUM_ETS_TC(mbx_out);
392 cap->max_pfc_tc = QLC_DCB_MAX_NUM_PFC_TC(mbx_out);
393
394 if (cap->max_num_tc > QLC_DCB_MAX_TC ||
395 cap->max_ets_tc > cap->max_num_tc ||
396 cap->max_pfc_tc > cap->max_num_tc) {
397 dev_err(&dcb->adapter->pdev->dev, "Invalid DCB configuration\n");
398 return -EINVAL;
399 }
400
401 return err;
402}
403
404static int qlcnic_82xx_dcb_get_hw_capability(struct qlcnic_dcb *dcb)
405{
406 struct qlcnic_dcb_cfg *cfg = dcb->cfg;
407 struct qlcnic_dcb_capability *cap;
408 u32 mbx_out;
409 int err;
410
411 err = __qlcnic_dcb_get_capability(dcb, &mbx_out);
412 if (err)
413 return err;
414
415 cap = &cfg->capability;
416 cap->dcb_capability = DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_LLD_MANAGED;
417
418 if (cap->dcb_capability && cap->tsa_capability && cap->ets_capability)
419 set_bit(QLCNIC_DCB_STATE, &dcb->state);
420
421 return err;
422}
423
424static int qlcnic_82xx_dcb_query_cee_param(struct qlcnic_dcb *dcb,
425 char *buf, u8 type)
426{
427 u16 size = sizeof(struct qlcnic_82xx_dcb_param_mbx_le);
428 struct qlcnic_adapter *adapter = dcb->adapter;
429 struct qlcnic_82xx_dcb_param_mbx_le *prsp_le;
430 struct device *dev = &adapter->pdev->dev;
431 dma_addr_t cardrsp_phys_addr;
432 struct qlcnic_dcb_param rsp;
433 struct qlcnic_cmd_args cmd;
434 u64 phys_addr;
435 void *addr;
436 int err, i;
437
438 switch (type) {
439 case QLC_DCB_LOCAL_PARAM_FWID:
440 case QLC_DCB_OPER_PARAM_FWID:
441 case QLC_DCB_PEER_PARAM_FWID:
442 break;
443 default:
444 dev_err(dev, "Invalid parameter type %d\n", type);
445 return -EINVAL;
446 }
447
448 addr = dma_alloc_coherent(dev, size, &cardrsp_phys_addr, GFP_KERNEL);
449 if (addr == NULL)
450 return -ENOMEM;
451
452 prsp_le = addr;
453
454 err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_DCB_QUERY_PARAM);
455 if (err)
456 goto out_free_rsp;
457
458 phys_addr = cardrsp_phys_addr;
459 cmd.req.arg[1] = size | (type << 16);
460 cmd.req.arg[2] = MSD(phys_addr);
461 cmd.req.arg[3] = LSD(phys_addr);
462
463 err = qlcnic_issue_cmd(adapter, &cmd);
464 if (err) {
465 dev_err(dev, "Failed to query DCBX parameter, err %d\n", err);
466 goto out;
467 }
468
469 memset(&rsp, 0, sizeof(struct qlcnic_dcb_param));
470 rsp.hdr_prio_pfc_map[0] = le32_to_cpu(prsp_le->hdr_prio_pfc_map[0]);
471 rsp.hdr_prio_pfc_map[1] = le32_to_cpu(prsp_le->hdr_prio_pfc_map[1]);
472 rsp.prio_pg_map[0] = le32_to_cpu(prsp_le->prio_pg_map[0]);
473 rsp.prio_pg_map[1] = le32_to_cpu(prsp_le->prio_pg_map[1]);
474 rsp.pg_bw_map[0] = le32_to_cpu(prsp_le->pg_bw_map[0]);
475 rsp.pg_bw_map[1] = le32_to_cpu(prsp_le->pg_bw_map[1]);
476 rsp.pg_tsa_map[0] = le32_to_cpu(prsp_le->pg_tsa_map[0]);
477 rsp.pg_tsa_map[1] = le32_to_cpu(prsp_le->pg_tsa_map[1]);
478
479 for (i = 0; i < QLC_DCB_MAX_APP; i++)
480 rsp.app[i] = le32_to_cpu(prsp_le->app[i]);
481
482 if (buf)
483 memcpy(buf, &rsp, size);
484out:
485 qlcnic_free_mbx_args(&cmd);
486
487out_free_rsp:
488 dma_free_coherent(dev, size, addr, cardrsp_phys_addr);
489
490 return err;
491}
492
493static int qlcnic_82xx_dcb_get_cee_cfg(struct qlcnic_dcb *dcb)
494{
495 struct qlcnic_dcb_mbx_params *mbx;
496 int err;
497
498 mbx = dcb->param;
499 if (!mbx)
500 return 0;
501
502 err = qlcnic_dcb_query_cee_param(dcb, (char *)&mbx->type[0],
503 QLC_DCB_LOCAL_PARAM_FWID);
504 if (err)
505 return err;
506
507 err = qlcnic_dcb_query_cee_param(dcb, (char *)&mbx->type[1],
508 QLC_DCB_OPER_PARAM_FWID);
509 if (err)
510 return err;
511
512 err = qlcnic_dcb_query_cee_param(dcb, (char *)&mbx->type[2],
513 QLC_DCB_PEER_PARAM_FWID);
514 if (err)
515 return err;
516
517 mbx->prio_tc_map = QLC_82XX_DCB_PRIO_TC_MAP;
518
519 qlcnic_dcb_data_cee_param_map(dcb->adapter);
520
521 return err;
522}
523
524static void qlcnic_dcb_aen_work(struct work_struct *work)
525{
526 struct qlcnic_dcb *dcb;
527
528 dcb = container_of(work, struct qlcnic_dcb, aen_work.work);
529
530 qlcnic_dcb_get_cee_cfg(dcb);
531 clear_bit(QLCNIC_DCB_AEN_MODE, &dcb->state);
532}
533
534static void qlcnic_82xx_dcb_aen_handler(struct qlcnic_dcb *dcb, void *data)
535{
536 if (test_and_set_bit(QLCNIC_DCB_AEN_MODE, &dcb->state))
537 return;
538
539 queue_delayed_work(dcb->wq, &dcb->aen_work, 0);
540}
541
542static int qlcnic_83xx_dcb_get_hw_capability(struct qlcnic_dcb *dcb)
543{
544 struct qlcnic_dcb_capability *cap = &dcb->cfg->capability;
545 u32 mbx_out;
546 int err;
547
548 err = __qlcnic_dcb_get_capability(dcb, &mbx_out);
549 if (err)
550 return err;
551
552 if (mbx_out & BIT_2)
553 cap->dcb_capability = DCB_CAP_DCBX_VER_CEE;
554 if (mbx_out & BIT_3)
555 cap->dcb_capability |= DCB_CAP_DCBX_VER_IEEE;
556 if (cap->dcb_capability)
557 cap->dcb_capability |= DCB_CAP_DCBX_LLD_MANAGED;
558
559 if (cap->dcb_capability && cap->tsa_capability && cap->ets_capability)
560 set_bit(QLCNIC_DCB_STATE, &dcb->state);
561
562 return err;
563}
564
565static int qlcnic_83xx_dcb_query_cee_param(struct qlcnic_dcb *dcb,
566 char *buf, u8 idx)
567{
568 struct qlcnic_adapter *adapter = dcb->adapter;
569 struct qlcnic_dcb_mbx_params mbx_out;
570 int err, i, j, k, max_app, size;
571 struct qlcnic_dcb_param *each;
572 struct qlcnic_cmd_args cmd;
573 u32 val;
574 char *p;
575
576 size = 0;
577 memset(&mbx_out, 0, sizeof(struct qlcnic_dcb_mbx_params));
578 memset(buf, 0, sizeof(struct qlcnic_dcb_mbx_params));
579
580 err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_DCB_QUERY_PARAM);
581 if (err)
582 return err;
583
584 cmd.req.arg[0] |= QLC_DCB_FW_VER << 29;
585 err = qlcnic_issue_cmd(adapter, &cmd);
586 if (err) {
587 dev_err(&adapter->pdev->dev,
588 "Failed to query DCBX param, err %d\n", err);
589 goto out;
590 }
591
592 mbx_out.prio_tc_map = cmd.rsp.arg[1];
593 p = memcpy(buf, &mbx_out, sizeof(u32));
594 k = 2;
595 p += sizeof(u32);
596
597 for (j = 0; j < QLC_DCB_NUM_PARAM; j++) {
598 each = &mbx_out.type[j];
599
600 each->hdr_prio_pfc_map[0] = cmd.rsp.arg[k++];
601 each->hdr_prio_pfc_map[1] = cmd.rsp.arg[k++];
602 each->prio_pg_map[0] = cmd.rsp.arg[k++];
603 each->prio_pg_map[1] = cmd.rsp.arg[k++];
604 each->pg_bw_map[0] = cmd.rsp.arg[k++];
605 each->pg_bw_map[1] = cmd.rsp.arg[k++];
606 each->pg_tsa_map[0] = cmd.rsp.arg[k++];
607 each->pg_tsa_map[1] = cmd.rsp.arg[k++];
608 val = each->hdr_prio_pfc_map[0];
609
610 max_app = qlcnic_dcb_get_num_app(adapter, val);
611 for (i = 0; i < max_app; i++)
612 each->app[i] = cmd.rsp.arg[i + k];
613
614 size = 16 * sizeof(u32);
615 memcpy(p, &each->hdr_prio_pfc_map[0], size);
616 p += size;
617 if (j == 0)
618 k = 18;
619 else
620 k = 34;
621 }
622out:
623 qlcnic_free_mbx_args(&cmd);
624
625 return err;
626}
627
628static int qlcnic_83xx_dcb_get_cee_cfg(struct qlcnic_dcb *dcb)
629{
630 int err;
631
632 err = qlcnic_dcb_query_cee_param(dcb, (char *)dcb->param, 0);
633 if (err)
634 return err;
635
636 qlcnic_dcb_data_cee_param_map(dcb->adapter);
637
638 return err;
639}
640
641static void qlcnic_83xx_dcb_aen_handler(struct qlcnic_dcb *dcb, void *data)
642{
643 u32 *val = data;
644
645 if (test_and_set_bit(QLCNIC_DCB_AEN_MODE, &dcb->state))
646 return;
647
648 if (*val & BIT_8)
649 set_bit(QLCNIC_DCB_STATE, &dcb->state);
650 else
651 clear_bit(QLCNIC_DCB_STATE, &dcb->state);
652
653 queue_delayed_work(dcb->wq, &dcb->aen_work, 0);
654}
655
656static void qlcnic_dcb_fill_cee_tc_params(struct qlcnic_dcb_mbx_params *mbx,
657 struct qlcnic_dcb_param *each,
658 struct qlcnic_dcb_cee *type)
659{
660 struct qlcnic_dcb_tc_cfg *tc_cfg;
661 u8 i, tc, pgid;
662
663 for (i = 0; i < QLC_DCB_MAX_PRIO; i++) {
664 tc = QLC_DCB_GET_TC_PRIO(mbx->prio_tc_map, i);
665 tc_cfg = &type->tc_cfg[tc];
666 tc_cfg->valid = true;
667 tc_cfg->up_tc_map |= QLC_DCB_GET_MAP(i);
668
669 if (QLC_DCB_GET_PFC_PRIO(each->hdr_prio_pfc_map[1], i) &&
670 type->pfc_mode_enable) {
671 tc_cfg->prio_cfg[i].valid = true;
672 tc_cfg->prio_cfg[i].pfc_type = QLC_PFC_FULL;
673 }
674
675 if (i < 4)
676 pgid = QLC_DCB_GET_PGID_PRIO(each->prio_pg_map[0], i);
677 else
678 pgid = QLC_DCB_GET_PGID_PRIO(each->prio_pg_map[1], i);
679
680 tc_cfg->pgid = pgid;
681
682 tc_cfg->prio_type = QLC_PRIO_LINK;
683 type->pg_cfg[tc_cfg->pgid].prio_count++;
684 }
685}
686
687static void qlcnic_dcb_fill_cee_pg_params(struct qlcnic_dcb_param *each,
688 struct qlcnic_dcb_cee *type)
689{
690 struct qlcnic_dcb_pg_cfg *pg_cfg;
691 u8 i, tsa, bw_per;
692
693 for (i = 0; i < QLC_DCB_MAX_PG; i++) {
694 pg_cfg = &type->pg_cfg[i];
695 pg_cfg->valid = true;
696
697 if (i < 4) {
698 bw_per = QLC_DCB_GET_BWPER_PG(each->pg_bw_map[0], i);
699 tsa = QLC_DCB_GET_TSA_PG(each->pg_tsa_map[0], i);
700 } else {
701 bw_per = QLC_DCB_GET_BWPER_PG(each->pg_bw_map[1], i);
702 tsa = QLC_DCB_GET_TSA_PG(each->pg_tsa_map[1], i);
703 }
704
705 pg_cfg->total_bw_percent = bw_per;
706 pg_cfg->tsa_type = tsa;
707 }
708}
709
710static void
711qlcnic_dcb_fill_cee_app_params(struct qlcnic_adapter *adapter, u8 idx,
712 struct qlcnic_dcb_param *each,
713 struct qlcnic_dcb_cee *type)
714{
715 struct qlcnic_dcb_app *app;
716 u8 i, num_app, map, cnt;
717 struct dcb_app new_app;
718
719 num_app = qlcnic_dcb_get_num_app(adapter, each->hdr_prio_pfc_map[0]);
720 for (i = 0; i < num_app; i++) {
721 app = &type->app[i];
722 app->valid = true;
723
724
725 app->selector = QLC_DCB_GET_SELECTOR_APP(each->app[i]) - 1;
726 new_app.selector = app->selector;
727 app->protocol = QLC_DCB_GET_PROTO_ID_APP(each->app[i]);
728 new_app.protocol = app->protocol;
729 map = qlcnic_dcb_get_prio_map_app(adapter, each->app[i]);
730 cnt = qlcnic_dcb_prio_count(map);
731
732 if (cnt >= QLC_DCB_MAX_TC)
733 cnt = 0;
734
735 app->priority = cnt;
736 new_app.priority = cnt;
737
738 if (idx == QLC_DCB_OPER_IDX && adapter->netdev->dcbnl_ops)
739 dcb_setapp(adapter->netdev, &new_app);
740 }
741}
742
743static void qlcnic_dcb_map_cee_params(struct qlcnic_adapter *adapter, u8 idx)
744{
745 struct qlcnic_dcb_mbx_params *mbx = adapter->dcb->param;
746 struct qlcnic_dcb_param *each = &mbx->type[idx];
747 struct qlcnic_dcb_cfg *cfg = adapter->dcb->cfg;
748 struct qlcnic_dcb_cee *type = &cfg->type[idx];
749
750 type->tc_param_valid = false;
751 type->pfc_mode_enable = false;
752 memset(type->tc_cfg, 0,
753 sizeof(struct qlcnic_dcb_tc_cfg) * QLC_DCB_MAX_TC);
754 memset(type->pg_cfg, 0,
755 sizeof(struct qlcnic_dcb_pg_cfg) * QLC_DCB_MAX_TC);
756
757 if (qlcnic_dcb_pfc_hdr_valid(adapter, each->hdr_prio_pfc_map[0]) &&
758 cfg->capability.max_pfc_tc)
759 type->pfc_mode_enable = true;
760
761 if (qlcnic_dcb_tsa_hdr_valid(adapter, each->hdr_prio_pfc_map[0]) &&
762 cfg->capability.max_ets_tc)
763 type->tc_param_valid = true;
764
765 qlcnic_dcb_fill_cee_tc_params(mbx, each, type);
766 qlcnic_dcb_fill_cee_pg_params(each, type);
767 qlcnic_dcb_fill_cee_app_params(adapter, idx, each, type);
768}
769
770static void qlcnic_dcb_data_cee_param_map(struct qlcnic_adapter *adapter)
771{
772 int i;
773
774 for (i = 0; i < QLC_DCB_NUM_PARAM; i++)
775 qlcnic_dcb_map_cee_params(adapter, i);
776
777 dcbnl_cee_notify(adapter->netdev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
778}
779
780static u8 qlcnic_dcb_get_state(struct net_device *netdev)
781{
782 struct qlcnic_adapter *adapter = netdev_priv(netdev);
783
784 return test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state);
785}
786
787static void qlcnic_dcb_get_perm_hw_addr(struct net_device *netdev, u8 *addr)
788{
789 memcpy(addr, netdev->perm_addr, netdev->addr_len);
790}
791
792static void
793qlcnic_dcb_get_pg_tc_cfg_tx(struct net_device *netdev, int tc, u8 *prio,
794 u8 *pgid, u8 *bw_per, u8 *up_tc_map)
795{
796 struct qlcnic_adapter *adapter = netdev_priv(netdev);
797 struct qlcnic_dcb_tc_cfg *tc_cfg, *temp;
798 struct qlcnic_dcb_cee *type;
799 u8 i, cnt, pg;
800
801 type = &adapter->dcb->cfg->type[QLC_DCB_OPER_IDX];
802 *prio = *pgid = *bw_per = *up_tc_map = 0;
803
804 if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state) ||
805 !type->tc_param_valid)
806 return;
807
808 if (tc < 0 || (tc >= QLC_DCB_MAX_TC))
809 return;
810
811 tc_cfg = &type->tc_cfg[tc];
812 if (!tc_cfg->valid)
813 return;
814
815 *pgid = tc_cfg->pgid;
816 *prio = tc_cfg->prio_type;
817 *up_tc_map = tc_cfg->up_tc_map;
818 pg = *pgid;
819
820 for (i = 0, cnt = 0; i < QLC_DCB_MAX_TC; i++) {
821 temp = &type->tc_cfg[i];
822 if (temp->valid && (pg == temp->pgid))
823 cnt++;
824 }
825
826 tc_cfg->bwg_percent = (100 / cnt);
827 *bw_per = tc_cfg->bwg_percent;
828}
829
830static void qlcnic_dcb_get_pg_bwg_cfg_tx(struct net_device *netdev, int pgid,
831 u8 *bw_pct)
832{
833 struct qlcnic_adapter *adapter = netdev_priv(netdev);
834 struct qlcnic_dcb_pg_cfg *pgcfg;
835 struct qlcnic_dcb_cee *type;
836
837 *bw_pct = 0;
838 type = &adapter->dcb->cfg->type[QLC_DCB_OPER_IDX];
839
840 if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state) ||
841 !type->tc_param_valid)
842 return;
843
844 if (pgid < 0 || pgid >= QLC_DCB_MAX_PG)
845 return;
846
847 pgcfg = &type->pg_cfg[pgid];
848 if (!pgcfg->valid)
849 return;
850
851 *bw_pct = pgcfg->total_bw_percent;
852}
853
854static void qlcnic_dcb_get_pfc_cfg(struct net_device *netdev, int prio,
855 u8 *setting)
856{
857 struct qlcnic_adapter *adapter = netdev_priv(netdev);
858 struct qlcnic_dcb_tc_cfg *tc_cfg;
859 u8 val = QLC_DCB_GET_MAP(prio);
860 struct qlcnic_dcb_cee *type;
861 u8 i;
862
863 *setting = 0;
864 type = &adapter->dcb->cfg->type[QLC_DCB_OPER_IDX];
865
866 if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state) ||
867 !type->pfc_mode_enable)
868 return;
869
870 for (i = 0; i < QLC_DCB_MAX_TC; i++) {
871 tc_cfg = &type->tc_cfg[i];
872 if (!tc_cfg->valid)
873 continue;
874
875 if ((val & tc_cfg->up_tc_map) && (tc_cfg->prio_cfg[prio].valid))
876 *setting = tc_cfg->prio_cfg[prio].pfc_type;
877 }
878}
879
880static u8 qlcnic_dcb_get_capability(struct net_device *netdev, int capid,
881 u8 *cap)
882{
883 struct qlcnic_adapter *adapter = netdev_priv(netdev);
884
885 if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
886 return 1;
887
888 switch (capid) {
889 case DCB_CAP_ATTR_PG:
890 case DCB_CAP_ATTR_UP2TC:
891 case DCB_CAP_ATTR_PFC:
892 case DCB_CAP_ATTR_GSP:
893 *cap = true;
894 break;
895 case DCB_CAP_ATTR_PG_TCS:
896 case DCB_CAP_ATTR_PFC_TCS:
897 *cap = 0x80;
898 break;
899 case DCB_CAP_ATTR_DCBX:
900 *cap = adapter->dcb->cfg->capability.dcb_capability;
901 break;
902 default:
903 *cap = false;
904 }
905
906 return 0;
907}
908
909static int qlcnic_dcb_get_num_tcs(struct net_device *netdev, int attr, u8 *num)
910{
911 struct qlcnic_adapter *adapter = netdev_priv(netdev);
912 struct qlcnic_dcb_cfg *cfg = adapter->dcb->cfg;
913
914 if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
915 return -EINVAL;
916
917 switch (attr) {
918 case DCB_NUMTCS_ATTR_PG:
919 *num = cfg->capability.max_ets_tc;
920 return 0;
921 case DCB_NUMTCS_ATTR_PFC:
922 *num = cfg->capability.max_pfc_tc;
923 return 0;
924 default:
925 return -EINVAL;
926 }
927}
928
929static int qlcnic_dcb_get_app(struct net_device *netdev, u8 idtype, u16 id)
930{
931 struct qlcnic_adapter *adapter = netdev_priv(netdev);
932 struct dcb_app app = {
933 .selector = idtype,
934 .protocol = id,
935 };
936
937 if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
938 return -EINVAL;
939
940 return dcb_getapp(netdev, &app);
941}
942
943static u8 qlcnic_dcb_get_pfc_state(struct net_device *netdev)
944{
945 struct qlcnic_adapter *adapter = netdev_priv(netdev);
946 struct qlcnic_dcb *dcb = adapter->dcb;
947
948 if (!test_bit(QLCNIC_DCB_STATE, &dcb->state))
949 return 0;
950
951 return dcb->cfg->type[QLC_DCB_OPER_IDX].pfc_mode_enable;
952}
953
954static u8 qlcnic_dcb_get_dcbx(struct net_device *netdev)
955{
956 struct qlcnic_adapter *adapter = netdev_priv(netdev);
957 struct qlcnic_dcb_cfg *cfg = adapter->dcb->cfg;
958
959 if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
960 return 0;
961
962 return cfg->capability.dcb_capability;
963}
964
965static u8 qlcnic_dcb_get_feat_cfg(struct net_device *netdev, int fid, u8 *flag)
966{
967 struct qlcnic_adapter *adapter = netdev_priv(netdev);
968 struct qlcnic_dcb_cee *type;
969
970 if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
971 return 1;
972
973 type = &adapter->dcb->cfg->type[QLC_DCB_OPER_IDX];
974 *flag = 0;
975
976 switch (fid) {
977 case DCB_FEATCFG_ATTR_PG:
978 if (type->tc_param_valid)
979 *flag |= DCB_FEATCFG_ENABLE;
980 else
981 *flag |= DCB_FEATCFG_ERROR;
982 break;
983 case DCB_FEATCFG_ATTR_PFC:
984 if (type->pfc_mode_enable) {
985 if (type->tc_cfg[0].prio_cfg[0].pfc_type)
986 *flag |= DCB_FEATCFG_ENABLE;
987 } else {
988 *flag |= DCB_FEATCFG_ERROR;
989 }
990 break;
991 case DCB_FEATCFG_ATTR_APP:
992 *flag |= DCB_FEATCFG_ENABLE;
993 break;
994 default:
995 netdev_err(netdev, "Invalid Feature ID %d\n", fid);
996 return 1;
997 }
998
999 return 0;
1000}
1001
1002static inline void
1003qlcnic_dcb_get_pg_tc_cfg_rx(struct net_device *netdev, int prio, u8 *prio_type,
1004 u8 *pgid, u8 *bw_pct, u8 *up_map)
1005{
1006 *prio_type = *pgid = *bw_pct = *up_map = 0;
1007}
1008
1009static inline void
1010qlcnic_dcb_get_pg_bwg_cfg_rx(struct net_device *netdev, int pgid, u8 *bw_pct)
1011{
1012 *bw_pct = 0;
1013}
1014
1015static int qlcnic_dcb_peer_app_info(struct net_device *netdev,
1016 struct dcb_peer_app_info *info,
1017 u16 *app_count)
1018{
1019 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1020 struct qlcnic_dcb_cee *peer;
1021 int i;
1022
1023 memset(info, 0, sizeof(*info));
1024 *app_count = 0;
1025
1026 if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
1027 return 0;
1028
1029 peer = &adapter->dcb->cfg->type[QLC_DCB_PEER_IDX];
1030
1031 for (i = 0; i < QLC_DCB_MAX_APP; i++) {
1032 if (peer->app[i].valid)
1033 (*app_count)++;
1034 }
1035
1036 return 0;
1037}
1038
1039static int qlcnic_dcb_peer_app_table(struct net_device *netdev,
1040 struct dcb_app *table)
1041{
1042 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1043 struct qlcnic_dcb_cee *peer;
1044 struct qlcnic_dcb_app *app;
1045 int i, j;
1046
1047 if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
1048 return 0;
1049
1050 peer = &adapter->dcb->cfg->type[QLC_DCB_PEER_IDX];
1051
1052 for (i = 0, j = 0; i < QLC_DCB_MAX_APP; i++) {
1053 app = &peer->app[i];
1054 if (!app->valid)
1055 continue;
1056
1057 table[j].selector = app->selector;
1058 table[j].priority = app->priority;
1059 table[j++].protocol = app->protocol;
1060 }
1061
1062 return 0;
1063}
1064
1065static int qlcnic_dcb_cee_peer_get_pg(struct net_device *netdev,
1066 struct cee_pg *pg)
1067{
1068 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1069 struct qlcnic_dcb_cee *peer;
1070 u8 i, j, k, map;
1071
1072 if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
1073 return 0;
1074
1075 peer = &adapter->dcb->cfg->type[QLC_DCB_PEER_IDX];
1076
1077 for (i = 0, j = 0; i < QLC_DCB_MAX_PG; i++) {
1078 if (!peer->pg_cfg[i].valid)
1079 continue;
1080
1081 pg->pg_bw[j] = peer->pg_cfg[i].total_bw_percent;
1082
1083 for (k = 0; k < QLC_DCB_MAX_TC; k++) {
1084 if (peer->tc_cfg[i].valid &&
1085 (peer->tc_cfg[i].pgid == i)) {
1086 map = peer->tc_cfg[i].up_tc_map;
1087 pg->prio_pg[j++] = map;
1088 break;
1089 }
1090 }
1091 }
1092
1093 return 0;
1094}
1095
1096static int qlcnic_dcb_cee_peer_get_pfc(struct net_device *netdev,
1097 struct cee_pfc *pfc)
1098{
1099 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1100 struct qlcnic_dcb_cfg *cfg = adapter->dcb->cfg;
1101 struct qlcnic_dcb_tc_cfg *tc;
1102 struct qlcnic_dcb_cee *peer;
1103 u8 i, setting, prio;
1104
1105 pfc->pfc_en = 0;
1106
1107 if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
1108 return 0;
1109
1110 peer = &cfg->type[QLC_DCB_PEER_IDX];
1111
1112 for (i = 0; i < QLC_DCB_MAX_TC; i++) {
1113 tc = &peer->tc_cfg[i];
1114 prio = qlcnic_dcb_prio_count(tc->up_tc_map);
1115
1116 setting = 0;
1117 qlcnic_dcb_get_pfc_cfg(netdev, prio, &setting);
1118 if (setting)
1119 pfc->pfc_en |= QLC_DCB_GET_MAP(i);
1120 }
1121
1122 pfc->tcs_supported = cfg->capability.max_pfc_tc;
1123
1124 return 0;
1125}
1126
1127static const struct dcbnl_rtnl_ops qlcnic_dcbnl_ops = {
1128 .getstate = qlcnic_dcb_get_state,
1129 .getpermhwaddr = qlcnic_dcb_get_perm_hw_addr,
1130 .getpgtccfgtx = qlcnic_dcb_get_pg_tc_cfg_tx,
1131 .getpgbwgcfgtx = qlcnic_dcb_get_pg_bwg_cfg_tx,
1132 .getpfccfg = qlcnic_dcb_get_pfc_cfg,
1133 .getcap = qlcnic_dcb_get_capability,
1134 .getnumtcs = qlcnic_dcb_get_num_tcs,
1135 .getapp = qlcnic_dcb_get_app,
1136 .getpfcstate = qlcnic_dcb_get_pfc_state,
1137 .getdcbx = qlcnic_dcb_get_dcbx,
1138 .getfeatcfg = qlcnic_dcb_get_feat_cfg,
1139
1140 .getpgtccfgrx = qlcnic_dcb_get_pg_tc_cfg_rx,
1141 .getpgbwgcfgrx = qlcnic_dcb_get_pg_bwg_cfg_rx,
1142
1143 .peer_getappinfo = qlcnic_dcb_peer_app_info,
1144 .peer_getapptable = qlcnic_dcb_peer_app_table,
1145 .cee_peer_getpg = qlcnic_dcb_cee_peer_get_pg,
1146 .cee_peer_getpfc = qlcnic_dcb_cee_peer_get_pfc,
1147};
1148
