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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs...
[deliverable/linux.git] / drivers / net / bnx2x / bnx2x_dcb.c
1 /* bnx2x_dcb.c: Broadcom Everest network driver.
2 *
3 * Copyright 2009-2010 Broadcom Corporation
4 *
5 * Unless you and Broadcom execute a separate written software license
6 * agreement governing use of this software, this software is licensed to you
7 * under the terms of the GNU General Public License version 2, available
8 * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
9 *
10 * Notwithstanding the above, under no circumstances may you combine this
11 * software in any way with any other Broadcom software provided under a
12 * license other than the GPL, without Broadcom's express prior written
13 * consent.
14 *
15 * Maintained by: Eilon Greenstein <eilong@broadcom.com>
16 * Written by: Dmitry Kravkov
17 *
18 */
19 #include <linux/netdevice.h>
20 #include <linux/types.h>
21 #include <linux/errno.h>
22 #ifdef BCM_DCBNL
23 #include <linux/dcbnl.h>
24 #endif
25
26 #include "bnx2x.h"
27 #include "bnx2x_cmn.h"
28 #include "bnx2x_dcb.h"
29
30
31 /* forward declarations of dcbx related functions */
32 static void bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp);
33 static void bnx2x_pfc_set_pfc(struct bnx2x *bp);
34 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp);
35 static void bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp);
36 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
37 u32 *set_configuration_ets_pg,
38 u32 *pri_pg_tbl);
39 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
40 u32 *pg_pri_orginal_spread,
41 struct pg_help_data *help_data);
42 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
43 struct pg_help_data *help_data,
44 struct dcbx_ets_feature *ets,
45 u32 *pg_pri_orginal_spread);
46 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
47 struct cos_help_data *cos_data,
48 u32 *pg_pri_orginal_spread,
49 struct dcbx_ets_feature *ets);
50 static void bnx2x_pfc_fw_struct_e2(struct bnx2x *bp);
51
52
53 static void bnx2x_pfc_set(struct bnx2x *bp)
54 {
55 struct bnx2x_nig_brb_pfc_port_params pfc_params = {0};
56 u32 pri_bit, val = 0;
57 u8 pri;
58
59 /* Tx COS configuration */
60 if (bp->dcbx_port_params.ets.cos_params[0].pauseable)
61 pfc_params.rx_cos0_priority_mask =
62 bp->dcbx_port_params.ets.cos_params[0].pri_bitmask;
63 if (bp->dcbx_port_params.ets.cos_params[1].pauseable)
64 pfc_params.rx_cos1_priority_mask =
65 bp->dcbx_port_params.ets.cos_params[1].pri_bitmask;
66
67
68 /**
69 * Rx COS configuration
70 * Changing PFC RX configuration .
71 * In RX COS0 will always be configured to lossy and COS1 to lossless
72 */
73 for (pri = 0 ; pri < MAX_PFC_PRIORITIES ; pri++) {
74 pri_bit = 1 << pri;
75
76 if (pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp))
77 val |= 1 << (pri * 4);
78 }
79
80 pfc_params.pkt_priority_to_cos = val;
81
82 /* RX COS0 */
83 pfc_params.llfc_low_priority_classes = 0;
84 /* RX COS1 */
85 pfc_params.llfc_high_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp);
86
87 /* BRB configuration */
88 pfc_params.cos0_pauseable = false;
89 pfc_params.cos1_pauseable = true;
90
91 bnx2x_acquire_phy_lock(bp);
92 bp->link_params.feature_config_flags |= FEATURE_CONFIG_PFC_ENABLED;
93 bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &pfc_params);
94 bnx2x_release_phy_lock(bp);
95 }
96
97 static void bnx2x_pfc_clear(struct bnx2x *bp)
98 {
99 struct bnx2x_nig_brb_pfc_port_params nig_params = {0};
100 nig_params.pause_enable = 1;
101 #ifdef BNX2X_SAFC
102 if (bp->flags & SAFC_TX_FLAG) {
103 u32 high = 0, low = 0;
104 int i;
105
106 for (i = 0; i < BNX2X_MAX_PRIORITY; i++) {
107 if (bp->pri_map[i] == 1)
108 high |= (1 << i);
109 if (bp->pri_map[i] == 0)
110 low |= (1 << i);
111 }
112
113 nig_params.llfc_low_priority_classes = high;
114 nig_params.llfc_low_priority_classes = low;
115
116 nig_params.pause_enable = 0;
117 nig_params.llfc_enable = 1;
118 nig_params.llfc_out_en = 1;
119 }
120 #endif /* BNX2X_SAFC */
121 bnx2x_acquire_phy_lock(bp);
122 bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_PFC_ENABLED;
123 bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &nig_params);
124 bnx2x_release_phy_lock(bp);
125 }
126
127 static void bnx2x_dump_dcbx_drv_param(struct bnx2x *bp,
128 struct dcbx_features *features,
129 u32 error)
130 {
131 u8 i = 0;
132 DP(NETIF_MSG_LINK, "local_mib.error %x\n", error);
133
134 /* PG */
135 DP(NETIF_MSG_LINK,
136 "local_mib.features.ets.enabled %x\n", features->ets.enabled);
137 for (i = 0; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++)
138 DP(NETIF_MSG_LINK,
139 "local_mib.features.ets.pg_bw_tbl[%d] %d\n", i,
140 DCBX_PG_BW_GET(features->ets.pg_bw_tbl, i));
141 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++)
142 DP(NETIF_MSG_LINK,
143 "local_mib.features.ets.pri_pg_tbl[%d] %d\n", i,
144 DCBX_PRI_PG_GET(features->ets.pri_pg_tbl, i));
145
146 /* pfc */
147 DP(NETIF_MSG_LINK, "dcbx_features.pfc.pri_en_bitmap %x\n",
148 features->pfc.pri_en_bitmap);
149 DP(NETIF_MSG_LINK, "dcbx_features.pfc.pfc_caps %x\n",
150 features->pfc.pfc_caps);
151 DP(NETIF_MSG_LINK, "dcbx_features.pfc.enabled %x\n",
152 features->pfc.enabled);
153
154 DP(NETIF_MSG_LINK, "dcbx_features.app.default_pri %x\n",
155 features->app.default_pri);
156 DP(NETIF_MSG_LINK, "dcbx_features.app.tc_supported %x\n",
157 features->app.tc_supported);
158 DP(NETIF_MSG_LINK, "dcbx_features.app.enabled %x\n",
159 features->app.enabled);
160 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
161 DP(NETIF_MSG_LINK,
162 "dcbx_features.app.app_pri_tbl[%x].app_id %x\n",
163 i, features->app.app_pri_tbl[i].app_id);
164 DP(NETIF_MSG_LINK,
165 "dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n",
166 i, features->app.app_pri_tbl[i].pri_bitmap);
167 DP(NETIF_MSG_LINK,
168 "dcbx_features.app.app_pri_tbl[%x].appBitfield %x\n",
169 i, features->app.app_pri_tbl[i].appBitfield);
170 }
171 }
172
173 static void bnx2x_dcbx_get_ap_priority(struct bnx2x *bp,
174 u8 pri_bitmap,
175 u8 llfc_traf_type)
176 {
177 u32 pri = MAX_PFC_PRIORITIES;
178 u32 index = MAX_PFC_PRIORITIES - 1;
179 u32 pri_mask;
180 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
181
182 /* Choose the highest priority */
183 while ((MAX_PFC_PRIORITIES == pri) && (0 != index)) {
184 pri_mask = 1 << index;
185 if (GET_FLAGS(pri_bitmap, pri_mask))
186 pri = index ;
187 index--;
188 }
189
190 if (pri < MAX_PFC_PRIORITIES)
191 ttp[llfc_traf_type] = max_t(u32, ttp[llfc_traf_type], pri);
192 }
193
194 static void bnx2x_dcbx_get_ap_feature(struct bnx2x *bp,
195 struct dcbx_app_priority_feature *app,
196 u32 error) {
197 u8 index;
198 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
199
200 if (GET_FLAGS(error, DCBX_LOCAL_APP_ERROR))
201 DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_ERROR\n");
202
203 if (app->enabled && !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR)) {
204
205 bp->dcbx_port_params.app.enabled = true;
206
207 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
208 ttp[index] = 0;
209
210 if (app->default_pri < MAX_PFC_PRIORITIES)
211 ttp[LLFC_TRAFFIC_TYPE_NW] = app->default_pri;
212
213 for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) {
214 struct dcbx_app_priority_entry *entry =
215 app->app_pri_tbl;
216
217 if (GET_FLAGS(entry[index].appBitfield,
218 DCBX_APP_SF_ETH_TYPE) &&
219 ETH_TYPE_FCOE == entry[index].app_id)
220 bnx2x_dcbx_get_ap_priority(bp,
221 entry[index].pri_bitmap,
222 LLFC_TRAFFIC_TYPE_FCOE);
223
224 if (GET_FLAGS(entry[index].appBitfield,
225 DCBX_APP_SF_PORT) &&
226 TCP_PORT_ISCSI == entry[index].app_id)
227 bnx2x_dcbx_get_ap_priority(bp,
228 entry[index].pri_bitmap,
229 LLFC_TRAFFIC_TYPE_ISCSI);
230 }
231 } else {
232 DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_DISABLED\n");
233 bp->dcbx_port_params.app.enabled = false;
234 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
235 ttp[index] = INVALID_TRAFFIC_TYPE_PRIORITY;
236 }
237 }
238
239 static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp,
240 struct dcbx_ets_feature *ets,
241 u32 error) {
242 int i = 0;
243 u32 pg_pri_orginal_spread[DCBX_MAX_NUM_PG_BW_ENTRIES] = {0};
244 struct pg_help_data pg_help_data;
245 struct bnx2x_dcbx_cos_params *cos_params =
246 bp->dcbx_port_params.ets.cos_params;
247
248 memset(&pg_help_data, 0, sizeof(struct pg_help_data));
249
250
251 if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR))
252 DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_ERROR\n");
253
254
255 /* Clean up old settings of ets on COS */
256 for (i = 0; i < E2_NUM_OF_COS ; i++) {
257
258 cos_params[i].pauseable = false;
259 cos_params[i].strict = BNX2X_DCBX_COS_NOT_STRICT;
260 cos_params[i].bw_tbl = DCBX_INVALID_COS_BW;
261 cos_params[i].pri_bitmask = DCBX_PFC_PRI_GET_NON_PAUSE(bp, 0);
262 }
263
264 if (bp->dcbx_port_params.app.enabled &&
265 !GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR) &&
266 ets->enabled) {
267 DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_ENABLE\n");
268 bp->dcbx_port_params.ets.enabled = true;
269
270 bnx2x_dcbx_get_ets_pri_pg_tbl(bp,
271 pg_pri_orginal_spread,
272 ets->pri_pg_tbl);
273
274 bnx2x_dcbx_get_num_pg_traf_type(bp,
275 pg_pri_orginal_spread,
276 &pg_help_data);
277
278 bnx2x_dcbx_fill_cos_params(bp, &pg_help_data,
279 ets, pg_pri_orginal_spread);
280
281 } else {
282 DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_DISABLED\n");
283 bp->dcbx_port_params.ets.enabled = false;
284 ets->pri_pg_tbl[0] = 0;
285
286 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES ; i++)
287 DCBX_PG_BW_SET(ets->pg_bw_tbl, i, 1);
288 }
289 }
290
291 static void bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp,
292 struct dcbx_pfc_feature *pfc, u32 error)
293 {
294
295 if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR))
296 DP(NETIF_MSG_LINK, "DCBX_LOCAL_PFC_ERROR\n");
297
298 if (bp->dcbx_port_params.app.enabled &&
299 !GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR) &&
300 pfc->enabled) {
301 bp->dcbx_port_params.pfc.enabled = true;
302 bp->dcbx_port_params.pfc.priority_non_pauseable_mask =
303 ~(pfc->pri_en_bitmap);
304 } else {
305 DP(NETIF_MSG_LINK, "DCBX_LOCAL_PFC_DISABLED\n");
306 bp->dcbx_port_params.pfc.enabled = false;
307 bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 0;
308 }
309 }
310
311 static void bnx2x_get_dcbx_drv_param(struct bnx2x *bp,
312 struct dcbx_features *features,
313 u32 error)
314 {
315 bnx2x_dcbx_get_ap_feature(bp, &features->app, error);
316
317 bnx2x_dcbx_get_pfc_feature(bp, &features->pfc, error);
318
319 bnx2x_dcbx_get_ets_feature(bp, &features->ets, error);
320 }
321
322 #define DCBX_LOCAL_MIB_MAX_TRY_READ (100)
323 static int bnx2x_dcbx_read_mib(struct bnx2x *bp,
324 u32 *base_mib_addr,
325 u32 offset,
326 int read_mib_type)
327 {
328 int max_try_read = 0, i;
329 u32 *buff, mib_size, prefix_seq_num, suffix_seq_num;
330 struct lldp_remote_mib *remote_mib ;
331 struct lldp_local_mib *local_mib;
332
333
334 switch (read_mib_type) {
335 case DCBX_READ_LOCAL_MIB:
336 mib_size = sizeof(struct lldp_local_mib);
337 break;
338 case DCBX_READ_REMOTE_MIB:
339 mib_size = sizeof(struct lldp_remote_mib);
340 break;
341 default:
342 return 1; /*error*/
343 }
344
345 offset += BP_PORT(bp) * mib_size;
346
347 do {
348 buff = base_mib_addr;
349 for (i = 0; i < mib_size; i += 4, buff++)
350 *buff = REG_RD(bp, offset + i);
351
352 max_try_read++;
353
354 switch (read_mib_type) {
355 case DCBX_READ_LOCAL_MIB:
356 local_mib = (struct lldp_local_mib *) base_mib_addr;
357 prefix_seq_num = local_mib->prefix_seq_num;
358 suffix_seq_num = local_mib->suffix_seq_num;
359 break;
360 case DCBX_READ_REMOTE_MIB:
361 remote_mib = (struct lldp_remote_mib *) base_mib_addr;
362 prefix_seq_num = remote_mib->prefix_seq_num;
363 suffix_seq_num = remote_mib->suffix_seq_num;
364 break;
365 default:
366 return 1; /*error*/
367 }
368 } while ((prefix_seq_num != suffix_seq_num) &&
369 (max_try_read < DCBX_LOCAL_MIB_MAX_TRY_READ));
370
371 if (max_try_read >= DCBX_LOCAL_MIB_MAX_TRY_READ) {
372 BNX2X_ERR("MIB could not be read\n");
373 return 1;
374 }
375
376 return 0;
377 }
378
379 static void bnx2x_pfc_set_pfc(struct bnx2x *bp)
380 {
381 if (CHIP_IS_E2(bp)) {
382 if (BP_PORT(bp)) {
383 BNX2X_ERR("4 port mode is not supported");
384 return;
385 }
386
387 if (bp->dcbx_port_params.pfc.enabled)
388
389 /* 1. Fills up common PFC structures if required.*/
390 /* 2. Configure NIG, MAC and BRB via the elink:
391 * elink must first check if BMAC is not in reset
392 * and only then configures the BMAC
393 * Or, configure EMAC.
394 */
395 bnx2x_pfc_set(bp);
396
397 else
398 bnx2x_pfc_clear(bp);
399 }
400 }
401
402 static void bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
403 {
404 DP(NETIF_MSG_LINK, "sending STOP TRAFFIC\n");
405 bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_STOP_TRAFFIC,
406 0 /* connectionless */,
407 0 /* dataHi is zero */,
408 0 /* dataLo is zero */,
409 1 /* common */);
410 }
411
412 static void bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
413 {
414 bnx2x_pfc_fw_struct_e2(bp);
415 DP(NETIF_MSG_LINK, "sending START TRAFFIC\n");
416 bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_START_TRAFFIC,
417 0, /* connectionless */
418 U64_HI(bnx2x_sp_mapping(bp, pfc_config)),
419 U64_LO(bnx2x_sp_mapping(bp, pfc_config)),
420 1 /* commmon */);
421 }
422
423 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp)
424 {
425 struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
426 u8 status = 0;
427
428 bnx2x_ets_disabled(&bp->link_params);
429
430 if (!ets->enabled)
431 return;
432
433 if ((ets->num_of_cos == 0) || (ets->num_of_cos > E2_NUM_OF_COS)) {
434 BNX2X_ERR("illegal num of cos= %x", ets->num_of_cos);
435 return;
436 }
437
438 /* valid COS entries */
439 if (ets->num_of_cos == 1) /* no ETS */
440 return;
441
442 /* sanity */
443 if (((BNX2X_DCBX_COS_NOT_STRICT == ets->cos_params[0].strict) &&
444 (DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) ||
445 ((BNX2X_DCBX_COS_NOT_STRICT == ets->cos_params[1].strict) &&
446 (DCBX_INVALID_COS_BW == ets->cos_params[1].bw_tbl))) {
447 BNX2X_ERR("all COS should have at least bw_limit or strict"
448 "ets->cos_params[0].strict= %x"
449 "ets->cos_params[0].bw_tbl= %x"
450 "ets->cos_params[1].strict= %x"
451 "ets->cos_params[1].bw_tbl= %x",
452 ets->cos_params[0].strict,
453 ets->cos_params[0].bw_tbl,
454 ets->cos_params[1].strict,
455 ets->cos_params[1].bw_tbl);
456 return;
457 }
458 /* If we join a group and there is bw_tbl and strict then bw rules */
459 if ((DCBX_INVALID_COS_BW != ets->cos_params[0].bw_tbl) &&
460 (DCBX_INVALID_COS_BW != ets->cos_params[1].bw_tbl)) {
461 u32 bw_tbl_0 = ets->cos_params[0].bw_tbl;
462 u32 bw_tbl_1 = ets->cos_params[1].bw_tbl;
463 /* Do not allow 0-100 configuration
464 * since PBF does not support it
465 * force 1-99 instead
466 */
467 if (bw_tbl_0 == 0) {
468 bw_tbl_0 = 1;
469 bw_tbl_1 = 99;
470 } else if (bw_tbl_1 == 0) {
471 bw_tbl_1 = 1;
472 bw_tbl_0 = 99;
473 }
474
475 bnx2x_ets_bw_limit(&bp->link_params, bw_tbl_0, bw_tbl_1);
476 } else {
477 if (ets->cos_params[0].strict == BNX2X_DCBX_COS_HIGH_STRICT)
478 status = bnx2x_ets_strict(&bp->link_params, 0);
479 else if (ets->cos_params[1].strict
480 == BNX2X_DCBX_COS_HIGH_STRICT)
481 status = bnx2x_ets_strict(&bp->link_params, 1);
482
483 if (status)
484 BNX2X_ERR("update_ets_params failed\n");
485 }
486 }
487
488 static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp)
489 {
490 struct lldp_local_mib local_mib = {0};
491 u32 dcbx_neg_res_offset = SHMEM2_RD(bp, dcbx_neg_res_offset);
492 int rc;
493
494 DP(NETIF_MSG_LINK, "dcbx_neg_res_offset 0x%x\n", dcbx_neg_res_offset);
495
496 if (SHMEM_DCBX_NEG_RES_NONE == dcbx_neg_res_offset) {
497 BNX2X_ERR("FW doesn't support dcbx_neg_res_offset\n");
498 return -EINVAL;
499 }
500 rc = bnx2x_dcbx_read_mib(bp, (u32 *)&local_mib, dcbx_neg_res_offset,
501 DCBX_READ_LOCAL_MIB);
502
503 if (rc) {
504 BNX2X_ERR("Faild to read local mib from FW\n");
505 return rc;
506 }
507
508 /* save features and error */
509 bp->dcbx_local_feat = local_mib.features;
510 bp->dcbx_error = local_mib.error;
511 return 0;
512 }
513
514
515 #ifdef BCM_DCBNL
516 static inline
517 u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent)
518 {
519 u8 pri;
520
521 /* Choose the highest priority */
522 for (pri = MAX_PFC_PRIORITIES - 1; pri > 0; pri--)
523 if (ent->pri_bitmap & (1 << pri))
524 break;
525 return pri;
526 }
527
528 static inline
529 u8 bnx2x_dcbx_dcbnl_app_idtype(struct dcbx_app_priority_entry *ent)
530 {
531 return ((ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) ==
532 DCBX_APP_SF_PORT) ? DCB_APP_IDTYPE_PORTNUM :
533 DCB_APP_IDTYPE_ETHTYPE;
534 }
535
536 static inline
537 void bnx2x_dcbx_invalidate_local_apps(struct bnx2x *bp)
538 {
539 int i;
540 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++)
541 bp->dcbx_local_feat.app.app_pri_tbl[i].appBitfield &=
542 ~DCBX_APP_ENTRY_VALID;
543 }
544
545 int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall)
546 {
547 int i, err = 0;
548
549 for (i = 0; i < DCBX_MAX_APP_PROTOCOL && err == 0; i++) {
550 struct dcbx_app_priority_entry *ent =
551 &bp->dcbx_local_feat.app.app_pri_tbl[i];
552
553 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
554 u8 up = bnx2x_dcbx_dcbnl_app_up(ent);
555
556 /* avoid invalid user-priority */
557 if (up) {
558 struct dcb_app app;
559 app.selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
560 app.protocol = ent->app_id;
561 app.priority = delall ? 0 : up;
562 err = dcb_setapp(bp->dev, &app);
563 }
564 }
565 }
566 return err;
567 }
568 #endif
569
570 void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
571 {
572 switch (state) {
573 case BNX2X_DCBX_STATE_NEG_RECEIVED:
574 {
575 DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_NEG_RECEIVED\n");
576 #ifdef BCM_DCBNL
577 /**
578 * Delete app tlvs from dcbnl before reading new
579 * negotiation results
580 */
581 bnx2x_dcbnl_update_applist(bp, true);
582 #endif
583 /* Read neg results if dcbx is in the FW */
584 if (bnx2x_dcbx_read_shmem_neg_results(bp))
585 return;
586
587 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
588 bp->dcbx_error);
589
590 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
591 bp->dcbx_error);
592
593 if (bp->state != BNX2X_STATE_OPENING_WAIT4_LOAD) {
594 #ifdef BCM_DCBNL
595 /**
596 * Add new app tlvs to dcbnl
597 */
598 bnx2x_dcbnl_update_applist(bp, false);
599 #endif
600 bnx2x_dcbx_stop_hw_tx(bp);
601 return;
602 }
603 /* fall through */
604 #ifdef BCM_DCBNL
605 /**
606 * Invalidate the local app tlvs if they are not added
607 * to the dcbnl app list to avoid deleting them from
608 * the list later on
609 */
610 bnx2x_dcbx_invalidate_local_apps(bp);
611 #endif
612 }
613 case BNX2X_DCBX_STATE_TX_PAUSED:
614 DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_PAUSED\n");
615 bnx2x_pfc_set_pfc(bp);
616
617 bnx2x_dcbx_update_ets_params(bp);
618 if (bp->state != BNX2X_STATE_OPENING_WAIT4_LOAD) {
619 bnx2x_dcbx_resume_hw_tx(bp);
620 return;
621 }
622 /* fall through */
623 case BNX2X_DCBX_STATE_TX_RELEASED:
624 DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_RELEASED\n");
625 if (bp->state != BNX2X_STATE_OPENING_WAIT4_LOAD)
626 bnx2x_fw_command(bp, DRV_MSG_CODE_DCBX_PMF_DRV_OK, 0);
627
628 return;
629 default:
630 BNX2X_ERR("Unknown DCBX_STATE\n");
631 }
632 }
633
634
635 #define LLDP_STATS_OFFSET(bp) (BP_PORT(bp)*\
636 sizeof(struct lldp_dcbx_stat))
637
638 /* calculate struct offset in array according to chip information */
639 #define LLDP_PARAMS_OFFSET(bp) (BP_PORT(bp)*sizeof(struct lldp_params))
640
641 #define LLDP_ADMIN_MIB_OFFSET(bp) (PORT_MAX*sizeof(struct lldp_params) + \
642 BP_PORT(bp)*sizeof(struct lldp_admin_mib))
643
644 static void bnx2x_dcbx_lldp_updated_params(struct bnx2x *bp,
645 u32 dcbx_lldp_params_offset)
646 {
647 struct lldp_params lldp_params = {0};
648 u32 i = 0, *buff = NULL;
649 u32 offset = dcbx_lldp_params_offset + LLDP_PARAMS_OFFSET(bp);
650
651 DP(NETIF_MSG_LINK, "lldp_offset 0x%x\n", offset);
652
653 if ((bp->lldp_config_params.overwrite_settings ==
654 BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE)) {
655 /* Read the data first */
656 buff = (u32 *)&lldp_params;
657 for (i = 0; i < sizeof(struct lldp_params); i += 4, buff++)
658 *buff = REG_RD(bp, (offset + i));
659
660 lldp_params.msg_tx_hold =
661 (u8)bp->lldp_config_params.msg_tx_hold;
662 lldp_params.msg_fast_tx_interval =
663 (u8)bp->lldp_config_params.msg_fast_tx;
664 lldp_params.tx_crd_max =
665 (u8)bp->lldp_config_params.tx_credit_max;
666 lldp_params.msg_tx_interval =
667 (u8)bp->lldp_config_params.msg_tx_interval;
668 lldp_params.tx_fast =
669 (u8)bp->lldp_config_params.tx_fast;
670
671 /* Write the data.*/
672 buff = (u32 *)&lldp_params;
673 for (i = 0; i < sizeof(struct lldp_params); i += 4, buff++)
674 REG_WR(bp, (offset + i) , *buff);
675
676
677 } else if (BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE ==
678 bp->lldp_config_params.overwrite_settings)
679 bp->lldp_config_params.overwrite_settings =
680 BNX2X_DCBX_OVERWRITE_SETTINGS_INVALID;
681 }
682
683 static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp,
684 u32 dcbx_lldp_params_offset)
685 {
686 struct lldp_admin_mib admin_mib;
687 u32 i, other_traf_type = PREDEFINED_APP_IDX_MAX, traf_type = 0;
688 u32 *buff;
689 u32 offset = dcbx_lldp_params_offset + LLDP_ADMIN_MIB_OFFSET(bp);
690
691 /*shortcuts*/
692 struct dcbx_features *af = &admin_mib.features;
693 struct bnx2x_config_dcbx_params *dp = &bp->dcbx_config_params;
694
695 memset(&admin_mib, 0, sizeof(struct lldp_admin_mib));
696 buff = (u32 *)&admin_mib;
697 /* Read the data first */
698 for (i = 0; i < sizeof(struct lldp_admin_mib); i += 4, buff++)
699 *buff = REG_RD(bp, (offset + i));
700
701 if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON)
702 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
703 else
704 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
705
706 if ((BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE ==
707 dp->overwrite_settings)) {
708 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_CEE_VERSION_MASK);
709 admin_mib.ver_cfg_flags |=
710 (dp->admin_dcbx_version << DCBX_CEE_VERSION_SHIFT) &
711 DCBX_CEE_VERSION_MASK;
712
713 af->ets.enabled = (u8)dp->admin_ets_enable;
714
715 af->pfc.enabled = (u8)dp->admin_pfc_enable;
716
717 /* FOR IEEE dp->admin_tc_supported_tx_enable */
718 if (dp->admin_ets_configuration_tx_enable)
719 SET_FLAGS(admin_mib.ver_cfg_flags,
720 DCBX_ETS_CONFIG_TX_ENABLED);
721 else
722 RESET_FLAGS(admin_mib.ver_cfg_flags,
723 DCBX_ETS_CONFIG_TX_ENABLED);
724 /* For IEEE admin_ets_recommendation_tx_enable */
725 if (dp->admin_pfc_tx_enable)
726 SET_FLAGS(admin_mib.ver_cfg_flags,
727 DCBX_PFC_CONFIG_TX_ENABLED);
728 else
729 RESET_FLAGS(admin_mib.ver_cfg_flags,
730 DCBX_PFC_CONFIG_TX_ENABLED);
731
732 if (dp->admin_application_priority_tx_enable)
733 SET_FLAGS(admin_mib.ver_cfg_flags,
734 DCBX_APP_CONFIG_TX_ENABLED);
735 else
736 RESET_FLAGS(admin_mib.ver_cfg_flags,
737 DCBX_APP_CONFIG_TX_ENABLED);
738
739 if (dp->admin_ets_willing)
740 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
741 else
742 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
743 /* For IEEE admin_ets_reco_valid */
744 if (dp->admin_pfc_willing)
745 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
746 else
747 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
748
749 if (dp->admin_app_priority_willing)
750 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
751 else
752 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
753
754 for (i = 0 ; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) {
755 DCBX_PG_BW_SET(af->ets.pg_bw_tbl, i,
756 (u8)dp->admin_configuration_bw_precentage[i]);
757
758 DP(NETIF_MSG_LINK, "pg_bw_tbl[%d] = %02x\n",
759 i, DCBX_PG_BW_GET(af->ets.pg_bw_tbl, i));
760 }
761
762 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
763 DCBX_PRI_PG_SET(af->ets.pri_pg_tbl, i,
764 (u8)dp->admin_configuration_ets_pg[i]);
765
766 DP(NETIF_MSG_LINK, "pri_pg_tbl[%d] = %02x\n",
767 i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i));
768 }
769
770 /*For IEEE admin_recommendation_bw_precentage
771 *For IEEE admin_recommendation_ets_pg */
772 af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap;
773 for (i = 0; i < 4; i++) {
774 if (dp->admin_priority_app_table[i].valid) {
775 struct bnx2x_admin_priority_app_table *table =
776 dp->admin_priority_app_table;
777 if ((ETH_TYPE_FCOE == table[i].app_id) &&
778 (TRAFFIC_TYPE_ETH == table[i].traffic_type))
779 traf_type = FCOE_APP_IDX;
780 else if ((TCP_PORT_ISCSI == table[i].app_id) &&
781 (TRAFFIC_TYPE_PORT == table[i].traffic_type))
782 traf_type = ISCSI_APP_IDX;
783 else
784 traf_type = other_traf_type++;
785
786 af->app.app_pri_tbl[traf_type].app_id =
787 table[i].app_id;
788
789 af->app.app_pri_tbl[traf_type].pri_bitmap =
790 (u8)(1 << table[i].priority);
791
792 af->app.app_pri_tbl[traf_type].appBitfield =
793 (DCBX_APP_ENTRY_VALID);
794
795 af->app.app_pri_tbl[traf_type].appBitfield |=
796 (TRAFFIC_TYPE_ETH == table[i].traffic_type) ?
797 DCBX_APP_SF_ETH_TYPE : DCBX_APP_SF_PORT;
798 }
799 }
800
801 af->app.default_pri = (u8)dp->admin_default_priority;
802
803 } else if (BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE ==
804 dp->overwrite_settings)
805 dp->overwrite_settings = BNX2X_DCBX_OVERWRITE_SETTINGS_INVALID;
806
807 /* Write the data. */
808 buff = (u32 *)&admin_mib;
809 for (i = 0; i < sizeof(struct lldp_admin_mib); i += 4, buff++)
810 REG_WR(bp, (offset + i), *buff);
811 }
812
813 void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled)
814 {
815 if (CHIP_IS_E2(bp) && !CHIP_MODE_IS_4_PORT(bp)) {
816 bp->dcb_state = dcb_on;
817 bp->dcbx_enabled = dcbx_enabled;
818 } else {
819 bp->dcb_state = false;
820 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_INVALID;
821 }
822 DP(NETIF_MSG_LINK, "DCB state [%s:%s]\n",
823 dcb_on ? "ON" : "OFF",
824 dcbx_enabled == BNX2X_DCBX_ENABLED_OFF ? "user-mode" :
825 dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF ? "on-chip static" :
826 dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON ?
827 "on-chip with negotiation" : "invalid");
828 }
829
830 void bnx2x_dcbx_init_params(struct bnx2x *bp)
831 {
832 bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */
833 bp->dcbx_config_params.admin_ets_willing = 1;
834 bp->dcbx_config_params.admin_pfc_willing = 1;
835 bp->dcbx_config_params.overwrite_settings = 1;
836 bp->dcbx_config_params.admin_ets_enable = 1;
837 bp->dcbx_config_params.admin_pfc_enable = 1;
838 bp->dcbx_config_params.admin_tc_supported_tx_enable = 1;
839 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
840 bp->dcbx_config_params.admin_pfc_tx_enable = 1;
841 bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
842 bp->dcbx_config_params.admin_ets_reco_valid = 1;
843 bp->dcbx_config_params.admin_app_priority_willing = 1;
844 bp->dcbx_config_params.admin_configuration_bw_precentage[0] = 00;
845 bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 50;
846 bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 50;
847 bp->dcbx_config_params.admin_configuration_bw_precentage[3] = 0;
848 bp->dcbx_config_params.admin_configuration_bw_precentage[4] = 0;
849 bp->dcbx_config_params.admin_configuration_bw_precentage[5] = 0;
850 bp->dcbx_config_params.admin_configuration_bw_precentage[6] = 0;
851 bp->dcbx_config_params.admin_configuration_bw_precentage[7] = 0;
852 bp->dcbx_config_params.admin_configuration_ets_pg[0] = 1;
853 bp->dcbx_config_params.admin_configuration_ets_pg[1] = 0;
854 bp->dcbx_config_params.admin_configuration_ets_pg[2] = 0;
855 bp->dcbx_config_params.admin_configuration_ets_pg[3] = 2;
856 bp->dcbx_config_params.admin_configuration_ets_pg[4] = 0;
857 bp->dcbx_config_params.admin_configuration_ets_pg[5] = 0;
858 bp->dcbx_config_params.admin_configuration_ets_pg[6] = 0;
859 bp->dcbx_config_params.admin_configuration_ets_pg[7] = 0;
860 bp->dcbx_config_params.admin_recommendation_bw_precentage[0] = 0;
861 bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 1;
862 bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 2;
863 bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0;
864 bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 7;
865 bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 5;
866 bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 6;
867 bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 7;
868 bp->dcbx_config_params.admin_recommendation_ets_pg[0] = 0;
869 bp->dcbx_config_params.admin_recommendation_ets_pg[1] = 1;
870 bp->dcbx_config_params.admin_recommendation_ets_pg[2] = 2;
871 bp->dcbx_config_params.admin_recommendation_ets_pg[3] = 3;
872 bp->dcbx_config_params.admin_recommendation_ets_pg[4] = 4;
873 bp->dcbx_config_params.admin_recommendation_ets_pg[5] = 5;
874 bp->dcbx_config_params.admin_recommendation_ets_pg[6] = 6;
875 bp->dcbx_config_params.admin_recommendation_ets_pg[7] = 7;
876 bp->dcbx_config_params.admin_pfc_bitmap = 0x8; /* FCoE(3) enable */
877 bp->dcbx_config_params.admin_priority_app_table[0].valid = 1;
878 bp->dcbx_config_params.admin_priority_app_table[1].valid = 1;
879 bp->dcbx_config_params.admin_priority_app_table[2].valid = 0;
880 bp->dcbx_config_params.admin_priority_app_table[3].valid = 0;
881 bp->dcbx_config_params.admin_priority_app_table[0].priority = 3;
882 bp->dcbx_config_params.admin_priority_app_table[1].priority = 0;
883 bp->dcbx_config_params.admin_priority_app_table[2].priority = 0;
884 bp->dcbx_config_params.admin_priority_app_table[3].priority = 0;
885 bp->dcbx_config_params.admin_priority_app_table[0].traffic_type = 0;
886 bp->dcbx_config_params.admin_priority_app_table[1].traffic_type = 1;
887 bp->dcbx_config_params.admin_priority_app_table[2].traffic_type = 0;
888 bp->dcbx_config_params.admin_priority_app_table[3].traffic_type = 0;
889 bp->dcbx_config_params.admin_priority_app_table[0].app_id = 0x8906;
890 bp->dcbx_config_params.admin_priority_app_table[1].app_id = 3260;
891 bp->dcbx_config_params.admin_priority_app_table[2].app_id = 0;
892 bp->dcbx_config_params.admin_priority_app_table[3].app_id = 0;
893 bp->dcbx_config_params.admin_default_priority =
894 bp->dcbx_config_params.admin_priority_app_table[1].priority;
895 }
896
897 void bnx2x_dcbx_init(struct bnx2x *bp)
898 {
899 u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE;
900
901 if (bp->dcbx_enabled <= 0)
902 return;
903
904 /* validate:
905 * chip of good for dcbx version,
906 * dcb is wanted
907 * the function is pmf
908 * shmem2 contains DCBX support fields
909 */
910 DP(NETIF_MSG_LINK, "dcb_state %d bp->port.pmf %d\n",
911 bp->dcb_state, bp->port.pmf);
912
913 if (bp->dcb_state == BNX2X_DCB_STATE_ON && bp->port.pmf &&
914 SHMEM2_HAS(bp, dcbx_lldp_params_offset)) {
915 dcbx_lldp_params_offset =
916 SHMEM2_RD(bp, dcbx_lldp_params_offset);
917
918 DP(NETIF_MSG_LINK, "dcbx_lldp_params_offset 0x%x\n",
919 dcbx_lldp_params_offset);
920
921 if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
922 bnx2x_dcbx_lldp_updated_params(bp,
923 dcbx_lldp_params_offset);
924
925 bnx2x_dcbx_admin_mib_updated_params(bp,
926 dcbx_lldp_params_offset);
927
928 /* set default configuration BC has */
929 bnx2x_dcbx_set_params(bp,
930 BNX2X_DCBX_STATE_NEG_RECEIVED);
931
932 bnx2x_fw_command(bp,
933 DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0);
934 }
935 }
936 }
937
938 void bnx2x_dcb_init_intmem_pfc(struct bnx2x *bp)
939 {
940 struct priority_cos pricos[MAX_PFC_TRAFFIC_TYPES];
941 u32 i = 0, addr;
942 memset(pricos, 0, sizeof(pricos));
943 /* Default initialization */
944 for (i = 0; i < MAX_PFC_TRAFFIC_TYPES; i++)
945 pricos[i].priority = LLFC_TRAFFIC_TYPE_TO_PRIORITY_UNMAPPED;
946
947 /* Store per port struct to internal memory */
948 addr = BAR_XSTRORM_INTMEM +
949 XSTORM_CMNG_PER_PORT_VARS_OFFSET(BP_PORT(bp)) +
950 offsetof(struct cmng_struct_per_port,
951 traffic_type_to_priority_cos);
952 __storm_memset_struct(bp, addr, sizeof(pricos), (u32 *)pricos);
953
954
955 /* LLFC disabled.*/
956 REG_WR8(bp , BAR_XSTRORM_INTMEM +
957 XSTORM_CMNG_PER_PORT_VARS_OFFSET(BP_PORT(bp)) +
958 offsetof(struct cmng_struct_per_port, llfc_mode),
959 LLFC_MODE_NONE);
960
961 /* DCBX disabled.*/
962 REG_WR8(bp , BAR_XSTRORM_INTMEM +
963 XSTORM_CMNG_PER_PORT_VARS_OFFSET(BP_PORT(bp)) +
964 offsetof(struct cmng_struct_per_port, dcb_enabled),
965 DCB_DISABLED);
966 }
967
968 static void
969 bnx2x_dcbx_print_cos_params(struct bnx2x *bp,
970 struct flow_control_configuration *pfc_fw_cfg)
971 {
972 u8 pri = 0;
973 u8 cos = 0;
974
975 DP(NETIF_MSG_LINK,
976 "pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version);
977 DP(NETIF_MSG_LINK,
978 "pdev->params.dcbx_port_params.pfc."
979 "priority_non_pauseable_mask %x\n",
980 bp->dcbx_port_params.pfc.priority_non_pauseable_mask);
981
982 for (cos = 0 ; cos < bp->dcbx_port_params.ets.num_of_cos ; cos++) {
983 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
984 "cos_params[%d].pri_bitmask %x\n", cos,
985 bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask);
986
987 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
988 "cos_params[%d].bw_tbl %x\n", cos,
989 bp->dcbx_port_params.ets.cos_params[cos].bw_tbl);
990
991 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
992 "cos_params[%d].strict %x\n", cos,
993 bp->dcbx_port_params.ets.cos_params[cos].strict);
994
995 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
996 "cos_params[%d].pauseable %x\n", cos,
997 bp->dcbx_port_params.ets.cos_params[cos].pauseable);
998 }
999
1000 for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1001 DP(NETIF_MSG_LINK,
1002 "pfc_fw_cfg->traffic_type_to_priority_cos[%d]."
1003 "priority %x\n", pri,
1004 pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority);
1005
1006 DP(NETIF_MSG_LINK,
1007 "pfc_fw_cfg->traffic_type_to_priority_cos[%d].cos %x\n",
1008 pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].cos);
1009 }
1010 }
1011
1012 /* fills help_data according to pg_info */
1013 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
1014 u32 *pg_pri_orginal_spread,
1015 struct pg_help_data *help_data)
1016 {
1017 bool pg_found = false;
1018 u32 i, traf_type, add_traf_type, add_pg;
1019 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1020 struct pg_entry_help_data *data = help_data->data; /*shotcut*/
1021
1022 /* Set to invalid */
1023 for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
1024 data[i].pg = DCBX_ILLEGAL_PG;
1025
1026 for (add_traf_type = 0;
1027 add_traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; add_traf_type++) {
1028 pg_found = false;
1029 if (ttp[add_traf_type] < MAX_PFC_PRIORITIES) {
1030 add_pg = (u8)pg_pri_orginal_spread[ttp[add_traf_type]];
1031 for (traf_type = 0;
1032 traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1033 traf_type++) {
1034 if (data[traf_type].pg == add_pg) {
1035 if (!(data[traf_type].pg_priority &
1036 (1 << ttp[add_traf_type])))
1037 data[traf_type].
1038 num_of_dif_pri++;
1039 data[traf_type].pg_priority |=
1040 (1 << ttp[add_traf_type]);
1041 pg_found = true;
1042 break;
1043 }
1044 }
1045 if (false == pg_found) {
1046 data[help_data->num_of_pg].pg = add_pg;
1047 data[help_data->num_of_pg].pg_priority =
1048 (1 << ttp[add_traf_type]);
1049 data[help_data->num_of_pg].num_of_dif_pri = 1;
1050 help_data->num_of_pg++;
1051 }
1052 }
1053 DP(NETIF_MSG_LINK,
1054 "add_traf_type %d pg_found %s num_of_pg %d\n",
1055 add_traf_type, (false == pg_found) ? "NO" : "YES",
1056 help_data->num_of_pg);
1057 }
1058 }
1059
1060
1061 /*******************************************************************************
1062 * Description: single priority group
1063 *
1064 * Return:
1065 ******************************************************************************/
1066 static void bnx2x_dcbx_ets_disabled_entry_data(struct bnx2x *bp,
1067 struct cos_help_data *cos_data,
1068 u32 pri_join_mask)
1069 {
1070 /* Only one priority than only one COS */
1071 cos_data->data[0].pausable =
1072 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1073 cos_data->data[0].pri_join_mask = pri_join_mask;
1074 cos_data->data[0].cos_bw = 100;
1075 cos_data->num_of_cos = 1;
1076 }
1077
1078 /*******************************************************************************
1079 * Description: updating the cos bw
1080 *
1081 * Return:
1082 ******************************************************************************/
1083 static inline void bnx2x_dcbx_add_to_cos_bw(struct bnx2x *bp,
1084 struct cos_entry_help_data *data,
1085 u8 pg_bw)
1086 {
1087 if (data->cos_bw == DCBX_INVALID_COS_BW)
1088 data->cos_bw = pg_bw;
1089 else
1090 data->cos_bw += pg_bw;
1091 }
1092
1093 /*******************************************************************************
1094 * Description: single priority group
1095 *
1096 * Return:
1097 ******************************************************************************/
1098 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
1099 struct cos_help_data *cos_data,
1100 u32 *pg_pri_orginal_spread,
1101 struct dcbx_ets_feature *ets)
1102 {
1103 u32 pri_tested = 0;
1104 u8 i = 0;
1105 u8 entry = 0;
1106 u8 pg_entry = 0;
1107 u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1108
1109 cos_data->data[0].pausable = true;
1110 cos_data->data[1].pausable = false;
1111 cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1112
1113 for (i = 0 ; i < num_of_pri ; i++) {
1114 pri_tested = 1 << bp->dcbx_port_params.
1115 app.traffic_type_priority[i];
1116
1117 if (pri_tested & DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) {
1118 cos_data->data[1].pri_join_mask |= pri_tested;
1119 entry = 1;
1120 } else {
1121 cos_data->data[0].pri_join_mask |= pri_tested;
1122 entry = 0;
1123 }
1124 pg_entry = (u8)pg_pri_orginal_spread[bp->dcbx_port_params.
1125 app.traffic_type_priority[i]];
1126 /* There can be only one strict pg */
1127 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES)
1128 bnx2x_dcbx_add_to_cos_bw(bp, &cos_data->data[entry],
1129 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry));
1130 else
1131 /* If we join a group and one is strict
1132 * than the bw rulls */
1133 cos_data->data[entry].strict =
1134 BNX2X_DCBX_COS_HIGH_STRICT;
1135 }
1136 if ((0 == cos_data->data[0].pri_join_mask) &&
1137 (0 == cos_data->data[1].pri_join_mask))
1138 BNX2X_ERR("dcbx error: Both groups must have priorities\n");
1139 }
1140
1141
1142 #ifndef POWER_OF_2
1143 #define POWER_OF_2(x) ((0 != x) && (0 == (x & (x-1))))
1144 #endif
1145
1146 static void bxn2x_dcbx_single_pg_to_cos_params(struct bnx2x *bp,
1147 struct pg_help_data *pg_help_data,
1148 struct cos_help_data *cos_data,
1149 u32 pri_join_mask,
1150 u8 num_of_dif_pri)
1151 {
1152 u8 i = 0;
1153 u32 pri_tested = 0;
1154 u32 pri_mask_without_pri = 0;
1155 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1156 /*debug*/
1157 if (num_of_dif_pri == 1) {
1158 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, pri_join_mask);
1159 return;
1160 }
1161 /* single priority group */
1162 if (pg_help_data->data[0].pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1163 /* If there are both pauseable and non-pauseable priorities,
1164 * the pauseable priorities go to the first queue and
1165 * the non-pauseable priorities go to the second queue.
1166 */
1167 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1168 /* Pauseable */
1169 cos_data->data[0].pausable = true;
1170 /* Non pauseable.*/
1171 cos_data->data[1].pausable = false;
1172
1173 if (2 == num_of_dif_pri) {
1174 cos_data->data[0].cos_bw = 50;
1175 cos_data->data[1].cos_bw = 50;
1176 }
1177
1178 if (3 == num_of_dif_pri) {
1179 if (POWER_OF_2(DCBX_PFC_PRI_GET_PAUSE(bp,
1180 pri_join_mask))) {
1181 cos_data->data[0].cos_bw = 33;
1182 cos_data->data[1].cos_bw = 67;
1183 } else {
1184 cos_data->data[0].cos_bw = 67;
1185 cos_data->data[1].cos_bw = 33;
1186 }
1187 }
1188
1189 } else if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask)) {
1190 /* If there are only pauseable priorities,
1191 * then one/two priorities go to the first queue
1192 * and one priority goes to the second queue.
1193 */
1194 if (2 == num_of_dif_pri) {
1195 cos_data->data[0].cos_bw = 50;
1196 cos_data->data[1].cos_bw = 50;
1197 } else {
1198 cos_data->data[0].cos_bw = 67;
1199 cos_data->data[1].cos_bw = 33;
1200 }
1201 cos_data->data[1].pausable = true;
1202 cos_data->data[0].pausable = true;
1203 /* All priorities except FCOE */
1204 cos_data->data[0].pri_join_mask = (pri_join_mask &
1205 ((u8)~(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE])));
1206 /* Only FCOE priority.*/
1207 cos_data->data[1].pri_join_mask =
1208 (1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]);
1209 } else
1210 /* If there are only non-pauseable priorities,
1211 * they will all go to the same queue.
1212 */
1213 bnx2x_dcbx_ets_disabled_entry_data(bp,
1214 cos_data, pri_join_mask);
1215 } else {
1216 /* priority group which is not BW limited (PG#15):*/
1217 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1218 /* If there are both pauseable and non-pauseable
1219 * priorities, the pauseable priorities go to the first
1220 * queue and the non-pauseable priorities
1221 * go to the second queue.
1222 */
1223 if (DCBX_PFC_PRI_GET_PAUSE(bp, pri_join_mask) >
1224 DCBX_PFC_PRI_GET_NON_PAUSE(bp, pri_join_mask)) {
1225 cos_data->data[0].strict =
1226 BNX2X_DCBX_COS_HIGH_STRICT;
1227 cos_data->data[1].strict =
1228 BNX2X_DCBX_COS_LOW_STRICT;
1229 } else {
1230 cos_data->data[0].strict =
1231 BNX2X_DCBX_COS_LOW_STRICT;
1232 cos_data->data[1].strict =
1233 BNX2X_DCBX_COS_HIGH_STRICT;
1234 }
1235 /* Pauseable */
1236 cos_data->data[0].pausable = true;
1237 /* Non pause-able.*/
1238 cos_data->data[1].pausable = false;
1239 } else {
1240 /* If there are only pauseable priorities or
1241 * only non-pauseable,* the lower priorities go
1242 * to the first queue and the higherpriorities go
1243 * to the second queue.
1244 */
1245 cos_data->data[0].pausable =
1246 cos_data->data[1].pausable =
1247 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1248
1249 for (i = 0 ; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) {
1250 pri_tested = 1 << bp->dcbx_port_params.
1251 app.traffic_type_priority[i];
1252 /* Remove priority tested */
1253 pri_mask_without_pri =
1254 (pri_join_mask & ((u8)(~pri_tested)));
1255 if (pri_mask_without_pri < pri_tested)
1256 break;
1257 }
1258
1259 if (i == LLFC_DRIVER_TRAFFIC_TYPE_MAX)
1260 BNX2X_ERR("Invalid value for pri_join_mask -"
1261 " could not find a priority\n");
1262
1263 cos_data->data[0].pri_join_mask = pri_mask_without_pri;
1264 cos_data->data[1].pri_join_mask = pri_tested;
1265 /* Both queues are strict priority,
1266 * and that with the highest priority
1267 * gets the highest strict priority in the arbiter.
1268 */
1269 cos_data->data[0].strict = BNX2X_DCBX_COS_LOW_STRICT;
1270 cos_data->data[1].strict = BNX2X_DCBX_COS_HIGH_STRICT;
1271 }
1272 }
1273 }
1274
1275 static void bnx2x_dcbx_two_pg_to_cos_params(
1276 struct bnx2x *bp,
1277 struct pg_help_data *pg_help_data,
1278 struct dcbx_ets_feature *ets,
1279 struct cos_help_data *cos_data,
1280 u32 *pg_pri_orginal_spread,
1281 u32 pri_join_mask,
1282 u8 num_of_dif_pri)
1283 {
1284 u8 i = 0;
1285 u8 pg[E2_NUM_OF_COS] = {0};
1286
1287 /* If there are both pauseable and non-pauseable priorities,
1288 * the pauseable priorities go to the first queue and
1289 * the non-pauseable priorities go to the second queue.
1290 */
1291 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1292 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1293 pg_help_data->data[0].pg_priority) ||
1294 IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1295 pg_help_data->data[1].pg_priority)) {
1296 /* If one PG contains both pauseable and
1297 * non-pauseable priorities then ETS is disabled.
1298 */
1299 bnx2x_dcbx_separate_pauseable_from_non(bp, cos_data,
1300 pg_pri_orginal_spread, ets);
1301 bp->dcbx_port_params.ets.enabled = false;
1302 return;
1303 }
1304
1305 /* Pauseable */
1306 cos_data->data[0].pausable = true;
1307 /* Non pauseable. */
1308 cos_data->data[1].pausable = false;
1309 if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp,
1310 pg_help_data->data[0].pg_priority)) {
1311 /* 0 is pauseable */
1312 cos_data->data[0].pri_join_mask =
1313 pg_help_data->data[0].pg_priority;
1314 pg[0] = pg_help_data->data[0].pg;
1315 cos_data->data[1].pri_join_mask =
1316 pg_help_data->data[1].pg_priority;
1317 pg[1] = pg_help_data->data[1].pg;
1318 } else {/* 1 is pauseable */
1319 cos_data->data[0].pri_join_mask =
1320 pg_help_data->data[1].pg_priority;
1321 pg[0] = pg_help_data->data[1].pg;
1322 cos_data->data[1].pri_join_mask =
1323 pg_help_data->data[0].pg_priority;
1324 pg[1] = pg_help_data->data[0].pg;
1325 }
1326 } else {
1327 /* If there are only pauseable priorities or
1328 * only non-pauseable, each PG goes to a queue.
1329 */
1330 cos_data->data[0].pausable = cos_data->data[1].pausable =
1331 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1332 cos_data->data[0].pri_join_mask =
1333 pg_help_data->data[0].pg_priority;
1334 pg[0] = pg_help_data->data[0].pg;
1335 cos_data->data[1].pri_join_mask =
1336 pg_help_data->data[1].pg_priority;
1337 pg[1] = pg_help_data->data[1].pg;
1338 }
1339
1340 /* There can be only one strict pg */
1341 for (i = 0 ; i < E2_NUM_OF_COS; i++) {
1342 if (pg[i] < DCBX_MAX_NUM_PG_BW_ENTRIES)
1343 cos_data->data[i].cos_bw =
1344 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg[i]);
1345 else
1346 cos_data->data[i].strict = BNX2X_DCBX_COS_HIGH_STRICT;
1347 }
1348 }
1349
1350 /*******************************************************************************
1351 * Description: Still
1352 *
1353 * Return:
1354 ******************************************************************************/
1355 static void bnx2x_dcbx_three_pg_to_cos_params(
1356 struct bnx2x *bp,
1357 struct pg_help_data *pg_help_data,
1358 struct dcbx_ets_feature *ets,
1359 struct cos_help_data *cos_data,
1360 u32 *pg_pri_orginal_spread,
1361 u32 pri_join_mask,
1362 u8 num_of_dif_pri)
1363 {
1364 u8 i = 0;
1365 u32 pri_tested = 0;
1366 u8 entry = 0;
1367 u8 pg_entry = 0;
1368 bool b_found_strict = false;
1369 u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1370
1371 cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1372 /* If there are both pauseable and non-pauseable priorities,
1373 * the pauseable priorities go to the first queue and the
1374 * non-pauseable priorities go to the second queue.
1375 */
1376 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask))
1377 bnx2x_dcbx_separate_pauseable_from_non(bp,
1378 cos_data, pg_pri_orginal_spread, ets);
1379 else {
1380 /* If two BW-limited PG-s were combined to one queue,
1381 * the BW is their sum.
1382 *
1383 * If there are only pauseable priorities or only non-pauseable,
1384 * and there are both BW-limited and non-BW-limited PG-s,
1385 * the BW-limited PG/s go to one queue and the non-BW-limited
1386 * PG/s go to the second queue.
1387 *
1388 * If there are only pauseable priorities or only non-pauseable
1389 * and all are BW limited, then two priorities go to the first
1390 * queue and one priority goes to the second queue.
1391 *
1392 * We will join this two cases:
1393 * if one is BW limited it will go to the secoend queue
1394 * otherwise the last priority will get it
1395 */
1396
1397 cos_data->data[0].pausable = cos_data->data[1].pausable =
1398 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1399
1400 for (i = 0 ; i < num_of_pri; i++) {
1401 pri_tested = 1 << bp->dcbx_port_params.
1402 app.traffic_type_priority[i];
1403 pg_entry = (u8)pg_pri_orginal_spread[bp->
1404 dcbx_port_params.app.traffic_type_priority[i]];
1405
1406 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1407 entry = 0;
1408
1409 if (i == (num_of_pri-1) &&
1410 false == b_found_strict)
1411 /* last entry will be handled separately
1412 * If no priority is strict than last
1413 * enty goes to last queue.*/
1414 entry = 1;
1415 cos_data->data[entry].pri_join_mask |=
1416 pri_tested;
1417 bnx2x_dcbx_add_to_cos_bw(bp,
1418 &cos_data->data[entry],
1419 DCBX_PG_BW_GET(ets->pg_bw_tbl,
1420 pg_entry));
1421 } else {
1422 b_found_strict = true;
1423 cos_data->data[1].pri_join_mask |= pri_tested;
1424 /* If we join a group and one is strict
1425 * than the bw rulls */
1426 cos_data->data[1].strict =
1427 BNX2X_DCBX_COS_HIGH_STRICT;
1428 }
1429 }
1430 }
1431 }
1432
1433
1434 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
1435 struct pg_help_data *help_data,
1436 struct dcbx_ets_feature *ets,
1437 u32 *pg_pri_orginal_spread)
1438 {
1439 struct cos_help_data cos_data ;
1440 u8 i = 0;
1441 u32 pri_join_mask = 0;
1442 u8 num_of_dif_pri = 0;
1443
1444 memset(&cos_data, 0, sizeof(cos_data));
1445 /* Validate the pg value */
1446 for (i = 0; i < help_data->num_of_pg ; i++) {
1447 if (DCBX_STRICT_PRIORITY != help_data->data[i].pg &&
1448 DCBX_MAX_NUM_PG_BW_ENTRIES <= help_data->data[i].pg)
1449 BNX2X_ERR("Invalid pg[%d] data %x\n", i,
1450 help_data->data[i].pg);
1451 pri_join_mask |= help_data->data[i].pg_priority;
1452 num_of_dif_pri += help_data->data[i].num_of_dif_pri;
1453 }
1454
1455 /* default settings */
1456 cos_data.num_of_cos = 2;
1457 for (i = 0; i < E2_NUM_OF_COS ; i++) {
1458 cos_data.data[i].pri_join_mask = pri_join_mask;
1459 cos_data.data[i].pausable = false;
1460 cos_data.data[i].strict = BNX2X_DCBX_COS_NOT_STRICT;
1461 cos_data.data[i].cos_bw = DCBX_INVALID_COS_BW;
1462 }
1463
1464 switch (help_data->num_of_pg) {
1465 case 1:
1466
1467 bxn2x_dcbx_single_pg_to_cos_params(
1468 bp,
1469 help_data,
1470 &cos_data,
1471 pri_join_mask,
1472 num_of_dif_pri);
1473 break;
1474 case 2:
1475 bnx2x_dcbx_two_pg_to_cos_params(
1476 bp,
1477 help_data,
1478 ets,
1479 &cos_data,
1480 pg_pri_orginal_spread,
1481 pri_join_mask,
1482 num_of_dif_pri);
1483 break;
1484
1485 case 3:
1486 bnx2x_dcbx_three_pg_to_cos_params(
1487 bp,
1488 help_data,
1489 ets,
1490 &cos_data,
1491 pg_pri_orginal_spread,
1492 pri_join_mask,
1493 num_of_dif_pri);
1494
1495 break;
1496 default:
1497 BNX2X_ERR("Wrong pg_help_data.num_of_pg\n");
1498 bnx2x_dcbx_ets_disabled_entry_data(bp,
1499 &cos_data, pri_join_mask);
1500 }
1501
1502 for (i = 0; i < cos_data.num_of_cos ; i++) {
1503 struct bnx2x_dcbx_cos_params *params =
1504 &bp->dcbx_port_params.ets.cos_params[i];
1505
1506 params->pauseable = cos_data.data[i].pausable;
1507 params->strict = cos_data.data[i].strict;
1508 params->bw_tbl = cos_data.data[i].cos_bw;
1509 if (params->pauseable) {
1510 params->pri_bitmask =
1511 DCBX_PFC_PRI_GET_PAUSE(bp,
1512 cos_data.data[i].pri_join_mask);
1513 DP(NETIF_MSG_LINK, "COS %d PAUSABLE prijoinmask 0x%x\n",
1514 i, cos_data.data[i].pri_join_mask);
1515 } else {
1516 params->pri_bitmask =
1517 DCBX_PFC_PRI_GET_NON_PAUSE(bp,
1518 cos_data.data[i].pri_join_mask);
1519 DP(NETIF_MSG_LINK, "COS %d NONPAUSABLE prijoinmask "
1520 "0x%x\n",
1521 i, cos_data.data[i].pri_join_mask);
1522 }
1523 }
1524
1525 bp->dcbx_port_params.ets.num_of_cos = cos_data.num_of_cos ;
1526 }
1527
1528 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
1529 u32 *set_configuration_ets_pg,
1530 u32 *pri_pg_tbl)
1531 {
1532 int i;
1533
1534 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
1535 set_configuration_ets_pg[i] = DCBX_PRI_PG_GET(pri_pg_tbl, i);
1536
1537 DP(NETIF_MSG_LINK, "set_configuration_ets_pg[%d] = 0x%x\n",
1538 i, set_configuration_ets_pg[i]);
1539 }
1540 }
1541
1542 /*******************************************************************************
1543 * Description: Fill pfc_config struct that will be sent in DCBX start ramrod
1544 *
1545 * Return:
1546 ******************************************************************************/
1547 static void bnx2x_pfc_fw_struct_e2(struct bnx2x *bp)
1548 {
1549 struct flow_control_configuration *pfc_fw_cfg = NULL;
1550 u16 pri_bit = 0;
1551 u8 cos = 0, pri = 0;
1552 struct priority_cos *tt2cos;
1553 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1554
1555 pfc_fw_cfg = (struct flow_control_configuration *)
1556 bnx2x_sp(bp, pfc_config);
1557 memset(pfc_fw_cfg, 0, sizeof(struct flow_control_configuration));
1558
1559 /*shortcut*/
1560 tt2cos = pfc_fw_cfg->traffic_type_to_priority_cos;
1561
1562 /* Fw version should be incremented each update */
1563 pfc_fw_cfg->dcb_version = ++bp->dcb_version;
1564 pfc_fw_cfg->dcb_enabled = DCB_ENABLED;
1565
1566 /* Default initialization */
1567 for (pri = 0; pri < MAX_PFC_TRAFFIC_TYPES ; pri++) {
1568 tt2cos[pri].priority = LLFC_TRAFFIC_TYPE_TO_PRIORITY_UNMAPPED;
1569 tt2cos[pri].cos = 0;
1570 }
1571
1572 /* Fill priority parameters */
1573 for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1574 tt2cos[pri].priority = ttp[pri];
1575 pri_bit = 1 << tt2cos[pri].priority;
1576
1577 /* Fill COS parameters based on COS calculated to
1578 * make it more generally for future use */
1579 for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++)
1580 if (bp->dcbx_port_params.ets.cos_params[cos].
1581 pri_bitmask & pri_bit)
1582 tt2cos[pri].cos = cos;
1583 }
1584 bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg);
1585 }
1586 /* DCB netlink */
1587 #ifdef BCM_DCBNL
1588
1589 #define BNX2X_DCBX_CAPS (DCB_CAP_DCBX_LLD_MANAGED | \
1590 DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC)
1591
1592 static inline bool bnx2x_dcbnl_set_valid(struct bnx2x *bp)
1593 {
1594 /* validate dcbnl call that may change HW state:
1595 * DCB is on and DCBX mode was SUCCESSFULLY set by the user.
1596 */
1597 return bp->dcb_state && bp->dcbx_mode_uset;
1598 }
1599
1600 static u8 bnx2x_dcbnl_get_state(struct net_device *netdev)
1601 {
1602 struct bnx2x *bp = netdev_priv(netdev);
1603 DP(NETIF_MSG_LINK, "state = %d\n", bp->dcb_state);
1604 return bp->dcb_state;
1605 }
1606
1607 static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state)
1608 {
1609 struct bnx2x *bp = netdev_priv(netdev);
1610 DP(NETIF_MSG_LINK, "state = %s\n", state ? "on" : "off");
1611
1612 bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled);
1613 return 0;
1614 }
1615
1616 static void bnx2x_dcbnl_get_perm_hw_addr(struct net_device *netdev,
1617 u8 *perm_addr)
1618 {
1619 struct bnx2x *bp = netdev_priv(netdev);
1620 DP(NETIF_MSG_LINK, "GET-PERM-ADDR\n");
1621
1622 /* first the HW mac address */
1623 memcpy(perm_addr, netdev->dev_addr, netdev->addr_len);
1624
1625 #ifdef BCM_CNIC
1626 /* second SAN address */
1627 memcpy(perm_addr+netdev->addr_len, bp->fip_mac, netdev->addr_len);
1628 #endif
1629 }
1630
1631 static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio,
1632 u8 prio_type, u8 pgid, u8 bw_pct,
1633 u8 up_map)
1634 {
1635 struct bnx2x *bp = netdev_priv(netdev);
1636
1637 DP(NETIF_MSG_LINK, "prio[%d] = %d\n", prio, pgid);
1638 if (!bnx2x_dcbnl_set_valid(bp) || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
1639 return;
1640
1641 /**
1642 * bw_pct ingnored - band-width percentage devision between user
1643 * priorities within the same group is not
1644 * standard and hence not supported
1645 *
1646 * prio_type igonred - priority levels within the same group are not
1647 * standard and hence are not supported. According
1648 * to the standard pgid 15 is dedicated to strict
1649 * prioirty traffic (on the port level).
1650 *
1651 * up_map ignored
1652 */
1653
1654 bp->dcbx_config_params.admin_configuration_ets_pg[prio] = pgid;
1655 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1656 }
1657
1658 static void bnx2x_dcbnl_set_pg_bwgcfg_tx(struct net_device *netdev,
1659 int pgid, u8 bw_pct)
1660 {
1661 struct bnx2x *bp = netdev_priv(netdev);
1662 DP(NETIF_MSG_LINK, "pgid[%d] = %d\n", pgid, bw_pct);
1663
1664 if (!bnx2x_dcbnl_set_valid(bp) || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
1665 return;
1666
1667 bp->dcbx_config_params.admin_configuration_bw_precentage[pgid] = bw_pct;
1668 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1669 }
1670
1671 static void bnx2x_dcbnl_set_pg_tccfg_rx(struct net_device *netdev, int prio,
1672 u8 prio_type, u8 pgid, u8 bw_pct,
1673 u8 up_map)
1674 {
1675 struct bnx2x *bp = netdev_priv(netdev);
1676 DP(NETIF_MSG_LINK, "Nothing to set; No RX support\n");
1677 }
1678
1679 static void bnx2x_dcbnl_set_pg_bwgcfg_rx(struct net_device *netdev,
1680 int pgid, u8 bw_pct)
1681 {
1682 struct bnx2x *bp = netdev_priv(netdev);
1683 DP(NETIF_MSG_LINK, "Nothing to set; No RX support\n");
1684 }
1685
1686 static void bnx2x_dcbnl_get_pg_tccfg_tx(struct net_device *netdev, int prio,
1687 u8 *prio_type, u8 *pgid, u8 *bw_pct,
1688 u8 *up_map)
1689 {
1690 struct bnx2x *bp = netdev_priv(netdev);
1691 DP(NETIF_MSG_LINK, "prio = %d\n", prio);
1692
1693 /**
1694 * bw_pct ingnored - band-width percentage devision between user
1695 * priorities within the same group is not
1696 * standard and hence not supported
1697 *
1698 * prio_type igonred - priority levels within the same group are not
1699 * standard and hence are not supported. According
1700 * to the standard pgid 15 is dedicated to strict
1701 * prioirty traffic (on the port level).
1702 *
1703 * up_map ignored
1704 */
1705 *up_map = *bw_pct = *prio_type = *pgid = 0;
1706
1707 if (!bp->dcb_state || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
1708 return;
1709
1710 *pgid = DCBX_PRI_PG_GET(bp->dcbx_local_feat.ets.pri_pg_tbl, prio);
1711 }
1712
1713 static void bnx2x_dcbnl_get_pg_bwgcfg_tx(struct net_device *netdev,
1714 int pgid, u8 *bw_pct)
1715 {
1716 struct bnx2x *bp = netdev_priv(netdev);
1717 DP(NETIF_MSG_LINK, "pgid = %d\n", pgid);
1718
1719 *bw_pct = 0;
1720
1721 if (!bp->dcb_state || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
1722 return;
1723
1724 *bw_pct = DCBX_PG_BW_GET(bp->dcbx_local_feat.ets.pg_bw_tbl, pgid);
1725 }
1726
1727 static void bnx2x_dcbnl_get_pg_tccfg_rx(struct net_device *netdev, int prio,
1728 u8 *prio_type, u8 *pgid, u8 *bw_pct,
1729 u8 *up_map)
1730 {
1731 struct bnx2x *bp = netdev_priv(netdev);
1732 DP(NETIF_MSG_LINK, "Nothing to get; No RX support\n");
1733
1734 *prio_type = *pgid = *bw_pct = *up_map = 0;
1735 }
1736
1737 static void bnx2x_dcbnl_get_pg_bwgcfg_rx(struct net_device *netdev,
1738 int pgid, u8 *bw_pct)
1739 {
1740 struct bnx2x *bp = netdev_priv(netdev);
1741 DP(NETIF_MSG_LINK, "Nothing to get; No RX support\n");
1742
1743 *bw_pct = 0;
1744 }
1745
1746 static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio,
1747 u8 setting)
1748 {
1749 struct bnx2x *bp = netdev_priv(netdev);
1750 DP(NETIF_MSG_LINK, "prio[%d] = %d\n", prio, setting);
1751
1752 if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES)
1753 return;
1754
1755 bp->dcbx_config_params.admin_pfc_bitmap |= ((setting ? 1 : 0) << prio);
1756
1757 if (setting)
1758 bp->dcbx_config_params.admin_pfc_tx_enable = 1;
1759 }
1760
1761 static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio,
1762 u8 *setting)
1763 {
1764 struct bnx2x *bp = netdev_priv(netdev);
1765 DP(NETIF_MSG_LINK, "prio = %d\n", prio);
1766
1767 *setting = 0;
1768
1769 if (!bp->dcb_state || prio >= MAX_PFC_PRIORITIES)
1770 return;
1771
1772 *setting = (bp->dcbx_local_feat.pfc.pri_en_bitmap >> prio) & 0x1;
1773 }
1774
1775 static u8 bnx2x_dcbnl_set_all(struct net_device *netdev)
1776 {
1777 struct bnx2x *bp = netdev_priv(netdev);
1778 int rc = 0;
1779
1780 DP(NETIF_MSG_LINK, "SET-ALL\n");
1781
1782 if (!bnx2x_dcbnl_set_valid(bp))
1783 return 1;
1784
1785 if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
1786 netdev_err(bp->dev, "Handling parity error recovery. "
1787 "Try again later\n");
1788 return 1;
1789 }
1790 if (netif_running(bp->dev)) {
1791 bnx2x_nic_unload(bp, UNLOAD_NORMAL);
1792 rc = bnx2x_nic_load(bp, LOAD_NORMAL);
1793 }
1794 DP(NETIF_MSG_LINK, "set_dcbx_params done (%d)\n", rc);
1795 if (rc)
1796 return 1;
1797
1798 return 0;
1799 }
1800
1801 static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap)
1802 {
1803 struct bnx2x *bp = netdev_priv(netdev);
1804 u8 rval = 0;
1805
1806 if (bp->dcb_state) {
1807 switch (capid) {
1808 case DCB_CAP_ATTR_PG:
1809 *cap = true;
1810 break;
1811 case DCB_CAP_ATTR_PFC:
1812 *cap = true;
1813 break;
1814 case DCB_CAP_ATTR_UP2TC:
1815 *cap = false;
1816 break;
1817 case DCB_CAP_ATTR_PG_TCS:
1818 *cap = 0x80; /* 8 priorities for PGs */
1819 break;
1820 case DCB_CAP_ATTR_PFC_TCS:
1821 *cap = 0x80; /* 8 priorities for PFC */
1822 break;
1823 case DCB_CAP_ATTR_GSP:
1824 *cap = true;
1825 break;
1826 case DCB_CAP_ATTR_BCN:
1827 *cap = false;
1828 break;
1829 case DCB_CAP_ATTR_DCBX:
1830 *cap = BNX2X_DCBX_CAPS;
1831 default:
1832 rval = -EINVAL;
1833 break;
1834 }
1835 } else
1836 rval = -EINVAL;
1837
1838 DP(NETIF_MSG_LINK, "capid %d:%x\n", capid, *cap);
1839 return rval;
1840 }
1841
1842 static u8 bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num)
1843 {
1844 struct bnx2x *bp = netdev_priv(netdev);
1845 u8 rval = 0;
1846
1847 DP(NETIF_MSG_LINK, "tcid %d\n", tcid);
1848
1849 if (bp->dcb_state) {
1850 switch (tcid) {
1851 case DCB_NUMTCS_ATTR_PG:
1852 *num = E2_NUM_OF_COS;
1853 break;
1854 case DCB_NUMTCS_ATTR_PFC:
1855 *num = E2_NUM_OF_COS;
1856 break;
1857 default:
1858 rval = -EINVAL;
1859 break;
1860 }
1861 } else
1862 rval = -EINVAL;
1863
1864 return rval;
1865 }
1866
1867 static u8 bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num)
1868 {
1869 struct bnx2x *bp = netdev_priv(netdev);
1870 DP(NETIF_MSG_LINK, "num tcs = %d; Not supported\n", num);
1871 return -EINVAL;
1872 }
1873
1874 static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev)
1875 {
1876 struct bnx2x *bp = netdev_priv(netdev);
1877 DP(NETIF_MSG_LINK, "state = %d\n", bp->dcbx_local_feat.pfc.enabled);
1878
1879 if (!bp->dcb_state)
1880 return 0;
1881
1882 return bp->dcbx_local_feat.pfc.enabled;
1883 }
1884
1885 static void bnx2x_dcbnl_set_pfc_state(struct net_device *netdev, u8 state)
1886 {
1887 struct bnx2x *bp = netdev_priv(netdev);
1888 DP(NETIF_MSG_LINK, "state = %s\n", state ? "on" : "off");
1889
1890 if (!bnx2x_dcbnl_set_valid(bp))
1891 return;
1892
1893 bp->dcbx_config_params.admin_pfc_tx_enable =
1894 bp->dcbx_config_params.admin_pfc_enable = (state ? 1 : 0);
1895 }
1896
1897 static void bnx2x_admin_app_set_ent(
1898 struct bnx2x_admin_priority_app_table *app_ent,
1899 u8 idtype, u16 idval, u8 up)
1900 {
1901 app_ent->valid = 1;
1902
1903 switch (idtype) {
1904 case DCB_APP_IDTYPE_ETHTYPE:
1905 app_ent->traffic_type = TRAFFIC_TYPE_ETH;
1906 break;
1907 case DCB_APP_IDTYPE_PORTNUM:
1908 app_ent->traffic_type = TRAFFIC_TYPE_PORT;
1909 break;
1910 default:
1911 break; /* never gets here */
1912 }
1913 app_ent->app_id = idval;
1914 app_ent->priority = up;
1915 }
1916
1917 static bool bnx2x_admin_app_is_equal(
1918 struct bnx2x_admin_priority_app_table *app_ent,
1919 u8 idtype, u16 idval)
1920 {
1921 if (!app_ent->valid)
1922 return false;
1923
1924 switch (idtype) {
1925 case DCB_APP_IDTYPE_ETHTYPE:
1926 if (app_ent->traffic_type != TRAFFIC_TYPE_ETH)
1927 return false;
1928 break;
1929 case DCB_APP_IDTYPE_PORTNUM:
1930 if (app_ent->traffic_type != TRAFFIC_TYPE_PORT)
1931 return false;
1932 break;
1933 default:
1934 return false;
1935 }
1936 if (app_ent->app_id != idval)
1937 return false;
1938
1939 return true;
1940 }
1941
1942 static int bnx2x_set_admin_app_up(struct bnx2x *bp, u8 idtype, u16 idval, u8 up)
1943 {
1944 int i, ff;
1945
1946 /* iterate over the app entries looking for idtype and idval */
1947 for (i = 0, ff = -1; i < 4; i++) {
1948 struct bnx2x_admin_priority_app_table *app_ent =
1949 &bp->dcbx_config_params.admin_priority_app_table[i];
1950 if (bnx2x_admin_app_is_equal(app_ent, idtype, idval))
1951 break;
1952
1953 if (ff < 0 && !app_ent->valid)
1954 ff = i;
1955 }
1956 if (i < 4)
1957 /* if found overwrite up */
1958 bp->dcbx_config_params.
1959 admin_priority_app_table[i].priority = up;
1960 else if (ff >= 0)
1961 /* not found use first-free */
1962 bnx2x_admin_app_set_ent(
1963 &bp->dcbx_config_params.admin_priority_app_table[ff],
1964 idtype, idval, up);
1965 else
1966 /* app table is full */
1967 return -EBUSY;
1968
1969 /* up configured, if not 0 make sure feature is enabled */
1970 if (up)
1971 bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
1972
1973 return 0;
1974 }
1975
1976 static u8 bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype,
1977 u16 idval, u8 up)
1978 {
1979 struct bnx2x *bp = netdev_priv(netdev);
1980
1981 DP(NETIF_MSG_LINK, "app_type %d, app_id %x, prio bitmap %d\n",
1982 idtype, idval, up);
1983
1984 if (!bnx2x_dcbnl_set_valid(bp))
1985 return -EINVAL;
1986
1987 /* verify idtype */
1988 switch (idtype) {
1989 case DCB_APP_IDTYPE_ETHTYPE:
1990 case DCB_APP_IDTYPE_PORTNUM:
1991 break;
1992 default:
1993 return -EINVAL;
1994 }
1995 return bnx2x_set_admin_app_up(bp, idtype, idval, up);
1996 }
1997
1998 static u8 bnx2x_dcbnl_get_dcbx(struct net_device *netdev)
1999 {
2000 struct bnx2x *bp = netdev_priv(netdev);
2001 u8 state;
2002
2003 state = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE;
2004
2005 if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF)
2006 state |= DCB_CAP_DCBX_STATIC;
2007
2008 return state;
2009 }
2010
2011 static u8 bnx2x_dcbnl_set_dcbx(struct net_device *netdev, u8 state)
2012 {
2013 struct bnx2x *bp = netdev_priv(netdev);
2014 DP(NETIF_MSG_LINK, "state = %02x\n", state);
2015
2016 /* set dcbx mode */
2017
2018 if ((state & BNX2X_DCBX_CAPS) != state) {
2019 BNX2X_ERR("Requested DCBX mode %x is beyond advertised "
2020 "capabilities\n", state);
2021 return 1;
2022 }
2023
2024 if (bp->dcb_state != BNX2X_DCB_STATE_ON) {
2025 BNX2X_ERR("DCB turned off, DCBX configuration is invalid\n");
2026 return 1;
2027 }
2028
2029 if (state & DCB_CAP_DCBX_STATIC)
2030 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_OFF;
2031 else
2032 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_ON;
2033
2034 bp->dcbx_mode_uset = true;
2035 return 0;
2036 }
2037
2038
2039 static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid,
2040 u8 *flags)
2041 {
2042 struct bnx2x *bp = netdev_priv(netdev);
2043 u8 rval = 0;
2044
2045 DP(NETIF_MSG_LINK, "featid %d\n", featid);
2046
2047 if (bp->dcb_state) {
2048 *flags = 0;
2049 switch (featid) {
2050 case DCB_FEATCFG_ATTR_PG:
2051 if (bp->dcbx_local_feat.ets.enabled)
2052 *flags |= DCB_FEATCFG_ENABLE;
2053 if (bp->dcbx_error & DCBX_LOCAL_ETS_ERROR)
2054 *flags |= DCB_FEATCFG_ERROR;
2055 break;
2056 case DCB_FEATCFG_ATTR_PFC:
2057 if (bp->dcbx_local_feat.pfc.enabled)
2058 *flags |= DCB_FEATCFG_ENABLE;
2059 if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR |
2060 DCBX_LOCAL_PFC_MISMATCH))
2061 *flags |= DCB_FEATCFG_ERROR;
2062 break;
2063 case DCB_FEATCFG_ATTR_APP:
2064 if (bp->dcbx_local_feat.app.enabled)
2065 *flags |= DCB_FEATCFG_ENABLE;
2066 if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR |
2067 DCBX_LOCAL_APP_MISMATCH))
2068 *flags |= DCB_FEATCFG_ERROR;
2069 break;
2070 default:
2071 rval = -EINVAL;
2072 break;
2073 }
2074 } else
2075 rval = -EINVAL;
2076
2077 return rval;
2078 }
2079
2080 static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid,
2081 u8 flags)
2082 {
2083 struct bnx2x *bp = netdev_priv(netdev);
2084 u8 rval = 0;
2085
2086 DP(NETIF_MSG_LINK, "featid = %d flags = %02x\n", featid, flags);
2087
2088 /* ignore the 'advertise' flag */
2089 if (bnx2x_dcbnl_set_valid(bp)) {
2090 switch (featid) {
2091 case DCB_FEATCFG_ATTR_PG:
2092 bp->dcbx_config_params.admin_ets_enable =
2093 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2094 bp->dcbx_config_params.admin_ets_willing =
2095 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2096 break;
2097 case DCB_FEATCFG_ATTR_PFC:
2098 bp->dcbx_config_params.admin_pfc_enable =
2099 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2100 bp->dcbx_config_params.admin_pfc_willing =
2101 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2102 break;
2103 case DCB_FEATCFG_ATTR_APP:
2104 /* ignore enable, always enabled */
2105 bp->dcbx_config_params.admin_app_priority_willing =
2106 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2107 break;
2108 default:
2109 rval = -EINVAL;
2110 break;
2111 }
2112 } else
2113 rval = -EINVAL;
2114
2115 return rval;
2116 }
2117
2118 const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = {
2119 .getstate = bnx2x_dcbnl_get_state,
2120 .setstate = bnx2x_dcbnl_set_state,
2121 .getpermhwaddr = bnx2x_dcbnl_get_perm_hw_addr,
2122 .setpgtccfgtx = bnx2x_dcbnl_set_pg_tccfg_tx,
2123 .setpgbwgcfgtx = bnx2x_dcbnl_set_pg_bwgcfg_tx,
2124 .setpgtccfgrx = bnx2x_dcbnl_set_pg_tccfg_rx,
2125 .setpgbwgcfgrx = bnx2x_dcbnl_set_pg_bwgcfg_rx,
2126 .getpgtccfgtx = bnx2x_dcbnl_get_pg_tccfg_tx,
2127 .getpgbwgcfgtx = bnx2x_dcbnl_get_pg_bwgcfg_tx,
2128 .getpgtccfgrx = bnx2x_dcbnl_get_pg_tccfg_rx,
2129 .getpgbwgcfgrx = bnx2x_dcbnl_get_pg_bwgcfg_rx,
2130 .setpfccfg = bnx2x_dcbnl_set_pfc_cfg,
2131 .getpfccfg = bnx2x_dcbnl_get_pfc_cfg,
2132 .setall = bnx2x_dcbnl_set_all,
2133 .getcap = bnx2x_dcbnl_get_cap,
2134 .getnumtcs = bnx2x_dcbnl_get_numtcs,
2135 .setnumtcs = bnx2x_dcbnl_set_numtcs,
2136 .getpfcstate = bnx2x_dcbnl_get_pfc_state,
2137 .setpfcstate = bnx2x_dcbnl_set_pfc_state,
2138 .setapp = bnx2x_dcbnl_set_app_up,
2139 .getdcbx = bnx2x_dcbnl_get_dcbx,
2140 .setdcbx = bnx2x_dcbnl_set_dcbx,
2141 .getfeatcfg = bnx2x_dcbnl_get_featcfg,
2142 .setfeatcfg = bnx2x_dcbnl_set_featcfg,
2143 };
2144
2145 #endif /* BCM_DCBNL */
Linux kernel - Deliverables
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