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