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bnx2x,cnic: use FW 7.8.2
[deliverable/linux.git] / drivers / net / ethernet / broadcom / bnx2x / bnx2x_dcb.c
1 /* bnx2x_dcb.c: Broadcom Everest network driver.
2 *
3 * Copyright 2009-2012 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
20 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
21
22 #include <linux/netdevice.h>
23 #include <linux/types.h>
24 #include <linux/errno.h>
25 #include <linux/rtnetlink.h>
26 #include <net/dcbnl.h>
27
28 #include "bnx2x.h"
29 #include "bnx2x_cmn.h"
30 #include "bnx2x_dcb.h"
31
32 /* forward declarations of dcbx related functions */
33 static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp);
34 static void bnx2x_pfc_set_pfc(struct bnx2x *bp);
35 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp);
36 static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp);
37 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
38 u32 *set_configuration_ets_pg,
39 u32 *pri_pg_tbl);
40 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
41 u32 *pg_pri_orginal_spread,
42 struct pg_help_data *help_data);
43 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
44 struct pg_help_data *help_data,
45 struct dcbx_ets_feature *ets,
46 u32 *pg_pri_orginal_spread);
47 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
48 struct cos_help_data *cos_data,
49 u32 *pg_pri_orginal_spread,
50 struct dcbx_ets_feature *ets);
51 static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
52 struct bnx2x_func_tx_start_params*);
53
54 /* helpers: read/write len bytes from addr into buff by REG_RD/REG_WR */
55 static void bnx2x_read_data(struct bnx2x *bp, u32 *buff,
56 u32 addr, u32 len)
57 {
58 int i;
59 for (i = 0; i < len; i += 4, buff++)
60 *buff = REG_RD(bp, addr + i);
61 }
62
63 static void bnx2x_write_data(struct bnx2x *bp, u32 *buff,
64 u32 addr, u32 len)
65 {
66 int i;
67 for (i = 0; i < len; i += 4, buff++)
68 REG_WR(bp, addr + i, *buff);
69 }
70
71 static void bnx2x_pfc_set(struct bnx2x *bp)
72 {
73 struct bnx2x_nig_brb_pfc_port_params pfc_params = {0};
74 u32 pri_bit, val = 0;
75 int i;
76
77 pfc_params.num_of_rx_cos_priority_mask =
78 bp->dcbx_port_params.ets.num_of_cos;
79
80 /* Tx COS configuration */
81 for (i = 0; i < bp->dcbx_port_params.ets.num_of_cos; i++)
82 /*
83 * We configure only the pauseable bits (non pauseable aren't
84 * configured at all) it's done to avoid false pauses from
85 * network
86 */
87 pfc_params.rx_cos_priority_mask[i] =
88 bp->dcbx_port_params.ets.cos_params[i].pri_bitmask
89 & DCBX_PFC_PRI_PAUSE_MASK(bp);
90
91 /*
92 * Rx COS configuration
93 * Changing PFC RX configuration .
94 * In RX COS0 will always be configured to lossless and COS1 to lossy
95 */
96 for (i = 0 ; i < MAX_PFC_PRIORITIES ; i++) {
97 pri_bit = 1 << i;
98
99 if (!(pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp)))
100 val |= 1 << (i * 4);
101 }
102
103 pfc_params.pkt_priority_to_cos = val;
104
105 /* RX COS0 */
106 pfc_params.llfc_low_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp);
107 /* RX COS1 */
108 pfc_params.llfc_high_priority_classes = 0;
109
110 bnx2x_acquire_phy_lock(bp);
111 bp->link_params.feature_config_flags |= FEATURE_CONFIG_PFC_ENABLED;
112 bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &pfc_params);
113 bnx2x_release_phy_lock(bp);
114 }
115
116 static void bnx2x_pfc_clear(struct bnx2x *bp)
117 {
118 struct bnx2x_nig_brb_pfc_port_params nig_params = {0};
119 nig_params.pause_enable = 1;
120 bnx2x_acquire_phy_lock(bp);
121 bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_PFC_ENABLED;
122 bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &nig_params);
123 bnx2x_release_phy_lock(bp);
124 }
125
126 static void bnx2x_dump_dcbx_drv_param(struct bnx2x *bp,
127 struct dcbx_features *features,
128 u32 error)
129 {
130 u8 i = 0;
131 DP(NETIF_MSG_LINK, "local_mib.error %x\n", error);
132
133 /* PG */
134 DP(NETIF_MSG_LINK,
135 "local_mib.features.ets.enabled %x\n", features->ets.enabled);
136 for (i = 0; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++)
137 DP(NETIF_MSG_LINK,
138 "local_mib.features.ets.pg_bw_tbl[%d] %d\n", i,
139 DCBX_PG_BW_GET(features->ets.pg_bw_tbl, i));
140 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++)
141 DP(NETIF_MSG_LINK,
142 "local_mib.features.ets.pri_pg_tbl[%d] %d\n", i,
143 DCBX_PRI_PG_GET(features->ets.pri_pg_tbl, i));
144
145 /* pfc */
146 DP(BNX2X_MSG_DCB, "dcbx_features.pfc.pri_en_bitmap %x\n",
147 features->pfc.pri_en_bitmap);
148 DP(BNX2X_MSG_DCB, "dcbx_features.pfc.pfc_caps %x\n",
149 features->pfc.pfc_caps);
150 DP(BNX2X_MSG_DCB, "dcbx_features.pfc.enabled %x\n",
151 features->pfc.enabled);
152
153 DP(BNX2X_MSG_DCB, "dcbx_features.app.default_pri %x\n",
154 features->app.default_pri);
155 DP(BNX2X_MSG_DCB, "dcbx_features.app.tc_supported %x\n",
156 features->app.tc_supported);
157 DP(BNX2X_MSG_DCB, "dcbx_features.app.enabled %x\n",
158 features->app.enabled);
159 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
160 DP(BNX2X_MSG_DCB,
161 "dcbx_features.app.app_pri_tbl[%x].app_id %x\n",
162 i, features->app.app_pri_tbl[i].app_id);
163 DP(BNX2X_MSG_DCB,
164 "dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n",
165 i, features->app.app_pri_tbl[i].pri_bitmap);
166 DP(BNX2X_MSG_DCB,
167 "dcbx_features.app.app_pri_tbl[%x].appBitfield %x\n",
168 i, features->app.app_pri_tbl[i].appBitfield);
169 }
170 }
171
172 static void bnx2x_dcbx_get_ap_priority(struct bnx2x *bp,
173 u8 pri_bitmap,
174 u8 llfc_traf_type)
175 {
176 u32 pri = MAX_PFC_PRIORITIES;
177 u32 index = MAX_PFC_PRIORITIES - 1;
178 u32 pri_mask;
179 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
180
181 /* Choose the highest priority */
182 while ((MAX_PFC_PRIORITIES == pri) && (0 != index)) {
183 pri_mask = 1 << index;
184 if (GET_FLAGS(pri_bitmap, pri_mask))
185 pri = index ;
186 index--;
187 }
188
189 if (pri < MAX_PFC_PRIORITIES)
190 ttp[llfc_traf_type] = max_t(u32, ttp[llfc_traf_type], pri);
191 }
192
193 static void bnx2x_dcbx_get_ap_feature(struct bnx2x *bp,
194 struct dcbx_app_priority_feature *app,
195 u32 error) {
196 u8 index;
197 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
198
199 if (GET_FLAGS(error, DCBX_LOCAL_APP_ERROR))
200 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_ERROR\n");
201
202 if (GET_FLAGS(error, DCBX_LOCAL_APP_MISMATCH))
203 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_MISMATCH\n");
204
205 if (GET_FLAGS(error, DCBX_REMOTE_APP_TLV_NOT_FOUND))
206 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_APP_TLV_NOT_FOUND\n");
207 if (app->enabled &&
208 !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR | DCBX_LOCAL_APP_MISMATCH |
209 DCBX_REMOTE_APP_TLV_NOT_FOUND)) {
210
211 bp->dcbx_port_params.app.enabled = true;
212
213 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
214 ttp[index] = 0;
215
216 if (app->default_pri < MAX_PFC_PRIORITIES)
217 ttp[LLFC_TRAFFIC_TYPE_NW] = app->default_pri;
218
219 for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) {
220 struct dcbx_app_priority_entry *entry =
221 app->app_pri_tbl;
222
223 if (GET_FLAGS(entry[index].appBitfield,
224 DCBX_APP_SF_ETH_TYPE) &&
225 ETH_TYPE_FCOE == entry[index].app_id)
226 bnx2x_dcbx_get_ap_priority(bp,
227 entry[index].pri_bitmap,
228 LLFC_TRAFFIC_TYPE_FCOE);
229
230 if (GET_FLAGS(entry[index].appBitfield,
231 DCBX_APP_SF_PORT) &&
232 TCP_PORT_ISCSI == entry[index].app_id)
233 bnx2x_dcbx_get_ap_priority(bp,
234 entry[index].pri_bitmap,
235 LLFC_TRAFFIC_TYPE_ISCSI);
236 }
237 } else {
238 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_DISABLED\n");
239 bp->dcbx_port_params.app.enabled = false;
240 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
241 ttp[index] = INVALID_TRAFFIC_TYPE_PRIORITY;
242 }
243 }
244
245 static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp,
246 struct dcbx_ets_feature *ets,
247 u32 error) {
248 int i = 0;
249 u32 pg_pri_orginal_spread[DCBX_MAX_NUM_PG_BW_ENTRIES] = {0};
250 struct pg_help_data pg_help_data;
251 struct bnx2x_dcbx_cos_params *cos_params =
252 bp->dcbx_port_params.ets.cos_params;
253
254 memset(&pg_help_data, 0, sizeof(struct pg_help_data));
255
256
257 if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR))
258 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ERROR\n");
259
260 if (GET_FLAGS(error, DCBX_REMOTE_ETS_TLV_NOT_FOUND))
261 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_ETS_TLV_NOT_FOUND\n");
262
263 /* Clean up old settings of ets on COS */
264 for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params) ; i++) {
265 cos_params[i].pauseable = false;
266 cos_params[i].strict = BNX2X_DCBX_STRICT_INVALID;
267 cos_params[i].bw_tbl = DCBX_INVALID_COS_BW;
268 cos_params[i].pri_bitmask = 0;
269 }
270
271 if (bp->dcbx_port_params.app.enabled && ets->enabled &&
272 !GET_FLAGS(error,
273 DCBX_LOCAL_ETS_ERROR | DCBX_REMOTE_ETS_TLV_NOT_FOUND)) {
274 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ENABLE\n");
275 bp->dcbx_port_params.ets.enabled = true;
276
277 bnx2x_dcbx_get_ets_pri_pg_tbl(bp,
278 pg_pri_orginal_spread,
279 ets->pri_pg_tbl);
280
281 bnx2x_dcbx_get_num_pg_traf_type(bp,
282 pg_pri_orginal_spread,
283 &pg_help_data);
284
285 bnx2x_dcbx_fill_cos_params(bp, &pg_help_data,
286 ets, pg_pri_orginal_spread);
287
288 } else {
289 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_DISABLED\n");
290 bp->dcbx_port_params.ets.enabled = false;
291 ets->pri_pg_tbl[0] = 0;
292
293 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES ; i++)
294 DCBX_PG_BW_SET(ets->pg_bw_tbl, i, 1);
295 }
296 }
297
298 static void bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp,
299 struct dcbx_pfc_feature *pfc, u32 error)
300 {
301
302 if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR))
303 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_ERROR\n");
304
305 if (GET_FLAGS(error, DCBX_REMOTE_PFC_TLV_NOT_FOUND))
306 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_PFC_TLV_NOT_FOUND\n");
307 if (bp->dcbx_port_params.app.enabled && pfc->enabled &&
308 !GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR | DCBX_LOCAL_PFC_MISMATCH |
309 DCBX_REMOTE_PFC_TLV_NOT_FOUND)) {
310 bp->dcbx_port_params.pfc.enabled = true;
311 bp->dcbx_port_params.pfc.priority_non_pauseable_mask =
312 ~(pfc->pri_en_bitmap);
313 } else {
314 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_DISABLED\n");
315 bp->dcbx_port_params.pfc.enabled = false;
316 bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 0;
317 }
318 }
319
320 /* maps unmapped priorities to to the same COS as L2 */
321 static void bnx2x_dcbx_map_nw(struct bnx2x *bp)
322 {
323 int i;
324 u32 unmapped = (1 << MAX_PFC_PRIORITIES) - 1; /* all ones */
325 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
326 u32 nw_prio = 1 << ttp[LLFC_TRAFFIC_TYPE_NW];
327 struct bnx2x_dcbx_cos_params *cos_params =
328 bp->dcbx_port_params.ets.cos_params;
329
330 /* get unmapped priorities by clearing mapped bits */
331 for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
332 unmapped &= ~(1 << ttp[i]);
333
334 /* find cos for nw prio and extend it with unmapped */
335 for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params); i++) {
336 if (cos_params[i].pri_bitmask & nw_prio) {
337 /* extend the bitmask with unmapped */
338 DP(BNX2X_MSG_DCB,
339 "cos %d extended with 0x%08x\n", i, unmapped);
340 cos_params[i].pri_bitmask |= unmapped;
341 break;
342 }
343 }
344 }
345
346 static void bnx2x_get_dcbx_drv_param(struct bnx2x *bp,
347 struct dcbx_features *features,
348 u32 error)
349 {
350 bnx2x_dcbx_get_ap_feature(bp, &features->app, error);
351
352 bnx2x_dcbx_get_pfc_feature(bp, &features->pfc, error);
353
354 bnx2x_dcbx_get_ets_feature(bp, &features->ets, error);
355
356 bnx2x_dcbx_map_nw(bp);
357 }
358
359 #define DCBX_LOCAL_MIB_MAX_TRY_READ (100)
360 static int bnx2x_dcbx_read_mib(struct bnx2x *bp,
361 u32 *base_mib_addr,
362 u32 offset,
363 int read_mib_type)
364 {
365 int max_try_read = 0;
366 u32 mib_size, prefix_seq_num, suffix_seq_num;
367 struct lldp_remote_mib *remote_mib ;
368 struct lldp_local_mib *local_mib;
369
370
371 switch (read_mib_type) {
372 case DCBX_READ_LOCAL_MIB:
373 mib_size = sizeof(struct lldp_local_mib);
374 break;
375 case DCBX_READ_REMOTE_MIB:
376 mib_size = sizeof(struct lldp_remote_mib);
377 break;
378 default:
379 return 1; /*error*/
380 }
381
382 offset += BP_PORT(bp) * mib_size;
383
384 do {
385 bnx2x_read_data(bp, base_mib_addr, offset, mib_size);
386
387 max_try_read++;
388
389 switch (read_mib_type) {
390 case DCBX_READ_LOCAL_MIB:
391 local_mib = (struct lldp_local_mib *) base_mib_addr;
392 prefix_seq_num = local_mib->prefix_seq_num;
393 suffix_seq_num = local_mib->suffix_seq_num;
394 break;
395 case DCBX_READ_REMOTE_MIB:
396 remote_mib = (struct lldp_remote_mib *) base_mib_addr;
397 prefix_seq_num = remote_mib->prefix_seq_num;
398 suffix_seq_num = remote_mib->suffix_seq_num;
399 break;
400 default:
401 return 1; /*error*/
402 }
403 } while ((prefix_seq_num != suffix_seq_num) &&
404 (max_try_read < DCBX_LOCAL_MIB_MAX_TRY_READ));
405
406 if (max_try_read >= DCBX_LOCAL_MIB_MAX_TRY_READ) {
407 BNX2X_ERR("MIB could not be read\n");
408 return 1;
409 }
410
411 return 0;
412 }
413
414 static void bnx2x_pfc_set_pfc(struct bnx2x *bp)
415 {
416 if (bp->dcbx_port_params.pfc.enabled &&
417 !(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
418 /*
419 * 1. Fills up common PFC structures if required
420 * 2. Configure NIG, MAC and BRB via the elink
421 */
422 bnx2x_pfc_set(bp);
423 else
424 bnx2x_pfc_clear(bp);
425 }
426
427 static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
428 {
429 struct bnx2x_func_state_params func_params = {NULL};
430
431 func_params.f_obj = &bp->func_obj;
432 func_params.cmd = BNX2X_F_CMD_TX_STOP;
433
434 DP(BNX2X_MSG_DCB, "STOP TRAFFIC\n");
435 return bnx2x_func_state_change(bp, &func_params);
436 }
437
438 static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
439 {
440 struct bnx2x_func_state_params func_params = {NULL};
441 struct bnx2x_func_tx_start_params *tx_params =
442 &func_params.params.tx_start;
443
444 func_params.f_obj = &bp->func_obj;
445 func_params.cmd = BNX2X_F_CMD_TX_START;
446
447 bnx2x_dcbx_fw_struct(bp, tx_params);
448
449 DP(BNX2X_MSG_DCB, "START TRAFFIC\n");
450 return bnx2x_func_state_change(bp, &func_params);
451 }
452
453 static void bnx2x_dcbx_2cos_limit_update_ets_config(struct bnx2x *bp)
454 {
455 struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
456 int rc = 0;
457
458 if (ets->num_of_cos == 0 || ets->num_of_cos > DCBX_COS_MAX_NUM_E2) {
459 BNX2X_ERR("Illegal number of COSes %d\n", ets->num_of_cos);
460 return;
461 }
462
463 /* valid COS entries */
464 if (ets->num_of_cos == 1) /* no ETS */
465 return;
466
467 /* sanity */
468 if (((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[0].strict) &&
469 (DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) ||
470 ((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[1].strict) &&
471 (DCBX_INVALID_COS_BW == ets->cos_params[1].bw_tbl))) {
472 BNX2X_ERR("all COS should have at least bw_limit or strict"
473 "ets->cos_params[0].strict= %x"
474 "ets->cos_params[0].bw_tbl= %x"
475 "ets->cos_params[1].strict= %x"
476 "ets->cos_params[1].bw_tbl= %x",
477 ets->cos_params[0].strict,
478 ets->cos_params[0].bw_tbl,
479 ets->cos_params[1].strict,
480 ets->cos_params[1].bw_tbl);
481 return;
482 }
483 /* If we join a group and there is bw_tbl and strict then bw rules */
484 if ((DCBX_INVALID_COS_BW != ets->cos_params[0].bw_tbl) &&
485 (DCBX_INVALID_COS_BW != ets->cos_params[1].bw_tbl)) {
486 u32 bw_tbl_0 = ets->cos_params[0].bw_tbl;
487 u32 bw_tbl_1 = ets->cos_params[1].bw_tbl;
488 /* Do not allow 0-100 configuration
489 * since PBF does not support it
490 * force 1-99 instead
491 */
492 if (bw_tbl_0 == 0) {
493 bw_tbl_0 = 1;
494 bw_tbl_1 = 99;
495 } else if (bw_tbl_1 == 0) {
496 bw_tbl_1 = 1;
497 bw_tbl_0 = 99;
498 }
499
500 bnx2x_ets_bw_limit(&bp->link_params, bw_tbl_0, bw_tbl_1);
501 } else {
502 if (ets->cos_params[0].strict == BNX2X_DCBX_STRICT_COS_HIGHEST)
503 rc = bnx2x_ets_strict(&bp->link_params, 0);
504 else if (ets->cos_params[1].strict
505 == BNX2X_DCBX_STRICT_COS_HIGHEST)
506 rc = bnx2x_ets_strict(&bp->link_params, 1);
507 if (rc)
508 BNX2X_ERR("update_ets_params failed\n");
509 }
510 }
511
512 /*
513 * In E3B0 the configuration may have more than 2 COS.
514 */
515 static void bnx2x_dcbx_update_ets_config(struct bnx2x *bp)
516 {
517 struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
518 struct bnx2x_ets_params ets_params = { 0 };
519 u8 i;
520
521 ets_params.num_of_cos = ets->num_of_cos;
522
523 for (i = 0; i < ets->num_of_cos; i++) {
524 /* COS is SP */
525 if (ets->cos_params[i].strict != BNX2X_DCBX_STRICT_INVALID) {
526 if (ets->cos_params[i].bw_tbl != DCBX_INVALID_COS_BW) {
527 BNX2X_ERR("COS can't be not BW and not SP\n");
528 return;
529 }
530
531 ets_params.cos[i].state = bnx2x_cos_state_strict;
532 ets_params.cos[i].params.sp_params.pri =
533 ets->cos_params[i].strict;
534 } else { /* COS is BW */
535 if (ets->cos_params[i].bw_tbl == DCBX_INVALID_COS_BW) {
536 BNX2X_ERR("COS can't be not BW and not SP\n");
537 return;
538 }
539 ets_params.cos[i].state = bnx2x_cos_state_bw;
540 ets_params.cos[i].params.bw_params.bw =
541 (u8)ets->cos_params[i].bw_tbl;
542 }
543 }
544
545 /* Configure the ETS in HW */
546 if (bnx2x_ets_e3b0_config(&bp->link_params, &bp->link_vars,
547 &ets_params)) {
548 BNX2X_ERR("bnx2x_ets_e3b0_config failed\n");
549 bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
550 }
551 }
552
553 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp)
554 {
555 bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
556
557 if (!bp->dcbx_port_params.ets.enabled ||
558 (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
559 return;
560
561 if (CHIP_IS_E3B0(bp))
562 bnx2x_dcbx_update_ets_config(bp);
563 else
564 bnx2x_dcbx_2cos_limit_update_ets_config(bp);
565 }
566
567 #ifdef BCM_DCBNL
568 static int bnx2x_dcbx_read_shmem_remote_mib(struct bnx2x *bp)
569 {
570 struct lldp_remote_mib remote_mib = {0};
571 u32 dcbx_remote_mib_offset = SHMEM2_RD(bp, dcbx_remote_mib_offset);
572 int rc;
573
574 DP(BNX2X_MSG_DCB, "dcbx_remote_mib_offset 0x%x\n",
575 dcbx_remote_mib_offset);
576
577 if (SHMEM_DCBX_REMOTE_MIB_NONE == dcbx_remote_mib_offset) {
578 BNX2X_ERR("FW doesn't support dcbx_remote_mib_offset\n");
579 return -EINVAL;
580 }
581
582 rc = bnx2x_dcbx_read_mib(bp, (u32 *)&remote_mib, dcbx_remote_mib_offset,
583 DCBX_READ_REMOTE_MIB);
584
585 if (rc) {
586 BNX2X_ERR("Faild to read remote mib from FW\n");
587 return rc;
588 }
589
590 /* save features and flags */
591 bp->dcbx_remote_feat = remote_mib.features;
592 bp->dcbx_remote_flags = remote_mib.flags;
593 return 0;
594 }
595 #endif
596
597 static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp)
598 {
599 struct lldp_local_mib local_mib = {0};
600 u32 dcbx_neg_res_offset = SHMEM2_RD(bp, dcbx_neg_res_offset);
601 int rc;
602
603 DP(BNX2X_MSG_DCB, "dcbx_neg_res_offset 0x%x\n", dcbx_neg_res_offset);
604
605 if (SHMEM_DCBX_NEG_RES_NONE == dcbx_neg_res_offset) {
606 BNX2X_ERR("FW doesn't support dcbx_neg_res_offset\n");
607 return -EINVAL;
608 }
609
610 rc = bnx2x_dcbx_read_mib(bp, (u32 *)&local_mib, dcbx_neg_res_offset,
611 DCBX_READ_LOCAL_MIB);
612
613 if (rc) {
614 BNX2X_ERR("Faild to read local mib from FW\n");
615 return rc;
616 }
617
618 /* save features and error */
619 bp->dcbx_local_feat = local_mib.features;
620 bp->dcbx_error = local_mib.error;
621 return 0;
622 }
623
624
625 #ifdef BCM_DCBNL
626 static inline
627 u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent)
628 {
629 u8 pri;
630
631 /* Choose the highest priority */
632 for (pri = MAX_PFC_PRIORITIES - 1; pri > 0; pri--)
633 if (ent->pri_bitmap & (1 << pri))
634 break;
635 return pri;
636 }
637
638 static inline
639 u8 bnx2x_dcbx_dcbnl_app_idtype(struct dcbx_app_priority_entry *ent)
640 {
641 return ((ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) ==
642 DCBX_APP_SF_PORT) ? DCB_APP_IDTYPE_PORTNUM :
643 DCB_APP_IDTYPE_ETHTYPE;
644 }
645
646 int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall)
647 {
648 int i, err = 0;
649
650 for (i = 0; i < DCBX_MAX_APP_PROTOCOL && err == 0; i++) {
651 struct dcbx_app_priority_entry *ent =
652 &bp->dcbx_local_feat.app.app_pri_tbl[i];
653
654 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
655 u8 up = bnx2x_dcbx_dcbnl_app_up(ent);
656
657 /* avoid invalid user-priority */
658 if (up) {
659 struct dcb_app app;
660 app.selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
661 app.protocol = ent->app_id;
662 app.priority = delall ? 0 : up;
663 err = dcb_setapp(bp->dev, &app);
664 }
665 }
666 }
667 return err;
668 }
669 #endif
670
671 static inline void bnx2x_dcbx_update_tc_mapping(struct bnx2x *bp)
672 {
673 u8 prio, cos;
674 for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++) {
675 for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) {
676 if (bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask
677 & (1 << prio)) {
678 bp->prio_to_cos[prio] = cos;
679 DP(BNX2X_MSG_DCB,
680 "tx_mapping %d --> %d\n", prio, cos);
681 }
682 }
683 }
684
685 /* setup tc must be called under rtnl lock, but we can't take it here
686 * as we are handling an attetntion on a work queue which must be
687 * flushed at some rtnl-locked contexts (e.g. if down)
688 */
689 if (!test_and_set_bit(BNX2X_SP_RTNL_SETUP_TC, &bp->sp_rtnl_state))
690 schedule_delayed_work(&bp->sp_rtnl_task, 0);
691 }
692
693 void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
694 {
695 switch (state) {
696 case BNX2X_DCBX_STATE_NEG_RECEIVED:
697 {
698 DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_NEG_RECEIVED\n");
699 #ifdef BCM_DCBNL
700 /**
701 * Delete app tlvs from dcbnl before reading new
702 * negotiation results
703 */
704 bnx2x_dcbnl_update_applist(bp, true);
705
706 /* Read rmeote mib if dcbx is in the FW */
707 if (bnx2x_dcbx_read_shmem_remote_mib(bp))
708 return;
709 #endif
710 /* Read neg results if dcbx is in the FW */
711 if (bnx2x_dcbx_read_shmem_neg_results(bp))
712 return;
713
714 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
715 bp->dcbx_error);
716
717 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
718 bp->dcbx_error);
719
720 /* mark DCBX result for PMF migration */
721 bnx2x_update_drv_flags(bp,
722 1 << DRV_FLAGS_DCB_CONFIGURED,
723 1);
724 #ifdef BCM_DCBNL
725 /*
726 * Add new app tlvs to dcbnl
727 */
728 bnx2x_dcbnl_update_applist(bp, false);
729 #endif
730 /*
731 * reconfigure the netdevice with the results of the new
732 * dcbx negotiation.
733 */
734 bnx2x_dcbx_update_tc_mapping(bp);
735
736 /*
737 * allow other funtions to update their netdevices
738 * accordingly
739 */
740 if (IS_MF(bp))
741 bnx2x_link_sync_notify(bp);
742
743 bnx2x_dcbx_stop_hw_tx(bp);
744
745 return;
746 }
747 case BNX2X_DCBX_STATE_TX_PAUSED:
748 DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_PAUSED\n");
749 bnx2x_pfc_set_pfc(bp);
750
751 bnx2x_dcbx_update_ets_params(bp);
752 bnx2x_dcbx_resume_hw_tx(bp);
753
754 return;
755 case BNX2X_DCBX_STATE_TX_RELEASED:
756 DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_RELEASED\n");
757 bnx2x_fw_command(bp, DRV_MSG_CODE_DCBX_PMF_DRV_OK, 0);
758 #ifdef BCM_DCBNL
759 /*
760 * Send a notification for the new negotiated parameters
761 */
762 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
763 #endif
764 return;
765 default:
766 BNX2X_ERR("Unknown DCBX_STATE\n");
767 }
768 }
769
770 #define LLDP_ADMIN_MIB_OFFSET(bp) (PORT_MAX*sizeof(struct lldp_params) + \
771 BP_PORT(bp)*sizeof(struct lldp_admin_mib))
772
773 static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp,
774 u32 dcbx_lldp_params_offset)
775 {
776 struct lldp_admin_mib admin_mib;
777 u32 i, other_traf_type = PREDEFINED_APP_IDX_MAX, traf_type = 0;
778 u32 offset = dcbx_lldp_params_offset + LLDP_ADMIN_MIB_OFFSET(bp);
779
780 /*shortcuts*/
781 struct dcbx_features *af = &admin_mib.features;
782 struct bnx2x_config_dcbx_params *dp = &bp->dcbx_config_params;
783
784 memset(&admin_mib, 0, sizeof(struct lldp_admin_mib));
785
786 /* Read the data first */
787 bnx2x_read_data(bp, (u32 *)&admin_mib, offset,
788 sizeof(struct lldp_admin_mib));
789
790 if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON)
791 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
792 else
793 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
794
795 if (dp->overwrite_settings == BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE) {
796
797 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_CEE_VERSION_MASK);
798 admin_mib.ver_cfg_flags |=
799 (dp->admin_dcbx_version << DCBX_CEE_VERSION_SHIFT) &
800 DCBX_CEE_VERSION_MASK;
801
802 af->ets.enabled = (u8)dp->admin_ets_enable;
803
804 af->pfc.enabled = (u8)dp->admin_pfc_enable;
805
806 /* FOR IEEE dp->admin_tc_supported_tx_enable */
807 if (dp->admin_ets_configuration_tx_enable)
808 SET_FLAGS(admin_mib.ver_cfg_flags,
809 DCBX_ETS_CONFIG_TX_ENABLED);
810 else
811 RESET_FLAGS(admin_mib.ver_cfg_flags,
812 DCBX_ETS_CONFIG_TX_ENABLED);
813 /* For IEEE admin_ets_recommendation_tx_enable */
814 if (dp->admin_pfc_tx_enable)
815 SET_FLAGS(admin_mib.ver_cfg_flags,
816 DCBX_PFC_CONFIG_TX_ENABLED);
817 else
818 RESET_FLAGS(admin_mib.ver_cfg_flags,
819 DCBX_PFC_CONFIG_TX_ENABLED);
820
821 if (dp->admin_application_priority_tx_enable)
822 SET_FLAGS(admin_mib.ver_cfg_flags,
823 DCBX_APP_CONFIG_TX_ENABLED);
824 else
825 RESET_FLAGS(admin_mib.ver_cfg_flags,
826 DCBX_APP_CONFIG_TX_ENABLED);
827
828 if (dp->admin_ets_willing)
829 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
830 else
831 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
832 /* For IEEE admin_ets_reco_valid */
833 if (dp->admin_pfc_willing)
834 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
835 else
836 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
837
838 if (dp->admin_app_priority_willing)
839 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
840 else
841 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
842
843 for (i = 0 ; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) {
844 DCBX_PG_BW_SET(af->ets.pg_bw_tbl, i,
845 (u8)dp->admin_configuration_bw_precentage[i]);
846
847 DP(BNX2X_MSG_DCB, "pg_bw_tbl[%d] = %02x\n",
848 i, DCBX_PG_BW_GET(af->ets.pg_bw_tbl, i));
849 }
850
851 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
852 DCBX_PRI_PG_SET(af->ets.pri_pg_tbl, i,
853 (u8)dp->admin_configuration_ets_pg[i]);
854
855 DP(BNX2X_MSG_DCB, "pri_pg_tbl[%d] = %02x\n",
856 i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i));
857 }
858
859 /*For IEEE admin_recommendation_bw_precentage
860 *For IEEE admin_recommendation_ets_pg */
861 af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap;
862 for (i = 0; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
863 if (dp->admin_priority_app_table[i].valid) {
864 struct bnx2x_admin_priority_app_table *table =
865 dp->admin_priority_app_table;
866 if ((ETH_TYPE_FCOE == table[i].app_id) &&
867 (TRAFFIC_TYPE_ETH == table[i].traffic_type))
868 traf_type = FCOE_APP_IDX;
869 else if ((TCP_PORT_ISCSI == table[i].app_id) &&
870 (TRAFFIC_TYPE_PORT == table[i].traffic_type))
871 traf_type = ISCSI_APP_IDX;
872 else
873 traf_type = other_traf_type++;
874
875 af->app.app_pri_tbl[traf_type].app_id =
876 table[i].app_id;
877
878 af->app.app_pri_tbl[traf_type].pri_bitmap =
879 (u8)(1 << table[i].priority);
880
881 af->app.app_pri_tbl[traf_type].appBitfield =
882 (DCBX_APP_ENTRY_VALID);
883
884 af->app.app_pri_tbl[traf_type].appBitfield |=
885 (TRAFFIC_TYPE_ETH == table[i].traffic_type) ?
886 DCBX_APP_SF_ETH_TYPE : DCBX_APP_SF_PORT;
887 }
888 }
889
890 af->app.default_pri = (u8)dp->admin_default_priority;
891
892 }
893
894 /* Write the data. */
895 bnx2x_write_data(bp, (u32 *)&admin_mib, offset,
896 sizeof(struct lldp_admin_mib));
897
898 }
899
900 void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled)
901 {
902 if (!CHIP_IS_E1x(bp)) {
903 bp->dcb_state = dcb_on;
904 bp->dcbx_enabled = dcbx_enabled;
905 } else {
906 bp->dcb_state = false;
907 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_INVALID;
908 }
909 DP(BNX2X_MSG_DCB, "DCB state [%s:%s]\n",
910 dcb_on ? "ON" : "OFF",
911 dcbx_enabled == BNX2X_DCBX_ENABLED_OFF ? "user-mode" :
912 dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF ? "on-chip static" :
913 dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON ?
914 "on-chip with negotiation" : "invalid");
915 }
916
917 void bnx2x_dcbx_init_params(struct bnx2x *bp)
918 {
919 bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */
920 bp->dcbx_config_params.admin_ets_willing = 1;
921 bp->dcbx_config_params.admin_pfc_willing = 1;
922 bp->dcbx_config_params.overwrite_settings = 1;
923 bp->dcbx_config_params.admin_ets_enable = 1;
924 bp->dcbx_config_params.admin_pfc_enable = 1;
925 bp->dcbx_config_params.admin_tc_supported_tx_enable = 1;
926 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
927 bp->dcbx_config_params.admin_pfc_tx_enable = 1;
928 bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
929 bp->dcbx_config_params.admin_ets_reco_valid = 1;
930 bp->dcbx_config_params.admin_app_priority_willing = 1;
931 bp->dcbx_config_params.admin_configuration_bw_precentage[0] = 100;
932 bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 0;
933 bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 0;
934 bp->dcbx_config_params.admin_configuration_bw_precentage[3] = 0;
935 bp->dcbx_config_params.admin_configuration_bw_precentage[4] = 0;
936 bp->dcbx_config_params.admin_configuration_bw_precentage[5] = 0;
937 bp->dcbx_config_params.admin_configuration_bw_precentage[6] = 0;
938 bp->dcbx_config_params.admin_configuration_bw_precentage[7] = 0;
939 bp->dcbx_config_params.admin_configuration_ets_pg[0] = 0;
940 bp->dcbx_config_params.admin_configuration_ets_pg[1] = 0;
941 bp->dcbx_config_params.admin_configuration_ets_pg[2] = 0;
942 bp->dcbx_config_params.admin_configuration_ets_pg[3] = 0;
943 bp->dcbx_config_params.admin_configuration_ets_pg[4] = 0;
944 bp->dcbx_config_params.admin_configuration_ets_pg[5] = 0;
945 bp->dcbx_config_params.admin_configuration_ets_pg[6] = 0;
946 bp->dcbx_config_params.admin_configuration_ets_pg[7] = 0;
947 bp->dcbx_config_params.admin_recommendation_bw_precentage[0] = 100;
948 bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 0;
949 bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 0;
950 bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0;
951 bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 0;
952 bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 0;
953 bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 0;
954 bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 0;
955 bp->dcbx_config_params.admin_recommendation_ets_pg[0] = 0;
956 bp->dcbx_config_params.admin_recommendation_ets_pg[1] = 1;
957 bp->dcbx_config_params.admin_recommendation_ets_pg[2] = 2;
958 bp->dcbx_config_params.admin_recommendation_ets_pg[3] = 3;
959 bp->dcbx_config_params.admin_recommendation_ets_pg[4] = 4;
960 bp->dcbx_config_params.admin_recommendation_ets_pg[5] = 5;
961 bp->dcbx_config_params.admin_recommendation_ets_pg[6] = 6;
962 bp->dcbx_config_params.admin_recommendation_ets_pg[7] = 7;
963 bp->dcbx_config_params.admin_pfc_bitmap = 0x0;
964 bp->dcbx_config_params.admin_priority_app_table[0].valid = 0;
965 bp->dcbx_config_params.admin_priority_app_table[1].valid = 0;
966 bp->dcbx_config_params.admin_priority_app_table[2].valid = 0;
967 bp->dcbx_config_params.admin_priority_app_table[3].valid = 0;
968 bp->dcbx_config_params.admin_default_priority = 0;
969 }
970
971 void bnx2x_dcbx_init(struct bnx2x *bp, bool update_shmem)
972 {
973 u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE;
974
975 /* only PMF can send ADMIN msg to MFW in old MFW versions */
976 if ((!bp->port.pmf) && (!(bp->flags & BC_SUPPORTS_DCBX_MSG_NON_PMF)))
977 return;
978
979 if (bp->dcbx_enabled <= 0)
980 return;
981
982 /* validate:
983 * chip of good for dcbx version,
984 * dcb is wanted
985 * shmem2 contains DCBX support fields
986 */
987 DP(BNX2X_MSG_DCB, "dcb_state %d bp->port.pmf %d\n",
988 bp->dcb_state, bp->port.pmf);
989
990 if (bp->dcb_state == BNX2X_DCB_STATE_ON &&
991 SHMEM2_HAS(bp, dcbx_lldp_params_offset)) {
992 dcbx_lldp_params_offset =
993 SHMEM2_RD(bp, dcbx_lldp_params_offset);
994
995 DP(BNX2X_MSG_DCB, "dcbx_lldp_params_offset 0x%x\n",
996 dcbx_lldp_params_offset);
997
998 bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_DCB_CONFIGURED, 0);
999
1000 if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
1001 /* need HW lock to avoid scenario of two drivers
1002 * writing in parallel to shmem
1003 */
1004 bnx2x_acquire_hw_lock(bp,
1005 HW_LOCK_RESOURCE_DCBX_ADMIN_MIB);
1006 if (update_shmem)
1007 bnx2x_dcbx_admin_mib_updated_params(bp,
1008 dcbx_lldp_params_offset);
1009
1010 /* Let HW start negotiation */
1011 bnx2x_fw_command(bp,
1012 DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0);
1013 /* release HW lock only after MFW acks that it finished
1014 * reading values from shmem
1015 */
1016 bnx2x_release_hw_lock(bp,
1017 HW_LOCK_RESOURCE_DCBX_ADMIN_MIB);
1018 }
1019 }
1020 }
1021 static void
1022 bnx2x_dcbx_print_cos_params(struct bnx2x *bp,
1023 struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1024 {
1025 u8 pri = 0;
1026 u8 cos = 0;
1027
1028 DP(BNX2X_MSG_DCB,
1029 "pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version);
1030 DP(BNX2X_MSG_DCB,
1031 "pdev->params.dcbx_port_params.pfc.priority_non_pauseable_mask %x\n",
1032 bp->dcbx_port_params.pfc.priority_non_pauseable_mask);
1033
1034 for (cos = 0 ; cos < bp->dcbx_port_params.ets.num_of_cos ; cos++) {
1035 DP(BNX2X_MSG_DCB,
1036 "pdev->params.dcbx_port_params.ets.cos_params[%d].pri_bitmask %x\n",
1037 cos, bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask);
1038
1039 DP(BNX2X_MSG_DCB,
1040 "pdev->params.dcbx_port_params.ets.cos_params[%d].bw_tbl %x\n",
1041 cos, bp->dcbx_port_params.ets.cos_params[cos].bw_tbl);
1042
1043 DP(BNX2X_MSG_DCB,
1044 "pdev->params.dcbx_port_params.ets.cos_params[%d].strict %x\n",
1045 cos, bp->dcbx_port_params.ets.cos_params[cos].strict);
1046
1047 DP(BNX2X_MSG_DCB,
1048 "pdev->params.dcbx_port_params.ets.cos_params[%d].pauseable %x\n",
1049 cos, bp->dcbx_port_params.ets.cos_params[cos].pauseable);
1050 }
1051
1052 for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1053 DP(BNX2X_MSG_DCB,
1054 "pfc_fw_cfg->traffic_type_to_priority_cos[%d].priority %x\n",
1055 pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority);
1056
1057 DP(BNX2X_MSG_DCB,
1058 "pfc_fw_cfg->traffic_type_to_priority_cos[%d].cos %x\n",
1059 pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].cos);
1060 }
1061 }
1062
1063 /* fills help_data according to pg_info */
1064 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
1065 u32 *pg_pri_orginal_spread,
1066 struct pg_help_data *help_data)
1067 {
1068 bool pg_found = false;
1069 u32 i, traf_type, add_traf_type, add_pg;
1070 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1071 struct pg_entry_help_data *data = help_data->data; /*shotcut*/
1072
1073 /* Set to invalid */
1074 for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
1075 data[i].pg = DCBX_ILLEGAL_PG;
1076
1077 for (add_traf_type = 0;
1078 add_traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; add_traf_type++) {
1079 pg_found = false;
1080 if (ttp[add_traf_type] < MAX_PFC_PRIORITIES) {
1081 add_pg = (u8)pg_pri_orginal_spread[ttp[add_traf_type]];
1082 for (traf_type = 0;
1083 traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1084 traf_type++) {
1085 if (data[traf_type].pg == add_pg) {
1086 if (!(data[traf_type].pg_priority &
1087 (1 << ttp[add_traf_type])))
1088 data[traf_type].
1089 num_of_dif_pri++;
1090 data[traf_type].pg_priority |=
1091 (1 << ttp[add_traf_type]);
1092 pg_found = true;
1093 break;
1094 }
1095 }
1096 if (false == pg_found) {
1097 data[help_data->num_of_pg].pg = add_pg;
1098 data[help_data->num_of_pg].pg_priority =
1099 (1 << ttp[add_traf_type]);
1100 data[help_data->num_of_pg].num_of_dif_pri = 1;
1101 help_data->num_of_pg++;
1102 }
1103 }
1104 DP(BNX2X_MSG_DCB,
1105 "add_traf_type %d pg_found %s num_of_pg %d\n",
1106 add_traf_type, (false == pg_found) ? "NO" : "YES",
1107 help_data->num_of_pg);
1108 }
1109 }
1110
1111 static void bnx2x_dcbx_ets_disabled_entry_data(struct bnx2x *bp,
1112 struct cos_help_data *cos_data,
1113 u32 pri_join_mask)
1114 {
1115 /* Only one priority than only one COS */
1116 cos_data->data[0].pausable =
1117 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1118 cos_data->data[0].pri_join_mask = pri_join_mask;
1119 cos_data->data[0].cos_bw = 100;
1120 cos_data->num_of_cos = 1;
1121 }
1122
1123 static inline void bnx2x_dcbx_add_to_cos_bw(struct bnx2x *bp,
1124 struct cos_entry_help_data *data,
1125 u8 pg_bw)
1126 {
1127 if (data->cos_bw == DCBX_INVALID_COS_BW)
1128 data->cos_bw = pg_bw;
1129 else
1130 data->cos_bw += pg_bw;
1131 }
1132
1133 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
1134 struct cos_help_data *cos_data,
1135 u32 *pg_pri_orginal_spread,
1136 struct dcbx_ets_feature *ets)
1137 {
1138 u32 pri_tested = 0;
1139 u8 i = 0;
1140 u8 entry = 0;
1141 u8 pg_entry = 0;
1142 u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1143
1144 cos_data->data[0].pausable = true;
1145 cos_data->data[1].pausable = false;
1146 cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1147
1148 for (i = 0 ; i < num_of_pri ; i++) {
1149 pri_tested = 1 << bp->dcbx_port_params.
1150 app.traffic_type_priority[i];
1151
1152 if (pri_tested & DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) {
1153 cos_data->data[1].pri_join_mask |= pri_tested;
1154 entry = 1;
1155 } else {
1156 cos_data->data[0].pri_join_mask |= pri_tested;
1157 entry = 0;
1158 }
1159 pg_entry = (u8)pg_pri_orginal_spread[bp->dcbx_port_params.
1160 app.traffic_type_priority[i]];
1161 /* There can be only one strict pg */
1162 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES)
1163 bnx2x_dcbx_add_to_cos_bw(bp, &cos_data->data[entry],
1164 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry));
1165 else
1166 /* If we join a group and one is strict
1167 * than the bw rulls */
1168 cos_data->data[entry].strict =
1169 BNX2X_DCBX_STRICT_COS_HIGHEST;
1170 }
1171 if ((0 == cos_data->data[0].pri_join_mask) &&
1172 (0 == cos_data->data[1].pri_join_mask))
1173 BNX2X_ERR("dcbx error: Both groups must have priorities\n");
1174 }
1175
1176
1177 #ifndef POWER_OF_2
1178 #define POWER_OF_2(x) ((0 != x) && (0 == (x & (x-1))))
1179 #endif
1180
1181 static void bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(struct bnx2x *bp,
1182 struct pg_help_data *pg_help_data,
1183 struct cos_help_data *cos_data,
1184 u32 pri_join_mask,
1185 u8 num_of_dif_pri)
1186 {
1187 u8 i = 0;
1188 u32 pri_tested = 0;
1189 u32 pri_mask_without_pri = 0;
1190 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1191 /*debug*/
1192 if (num_of_dif_pri == 1) {
1193 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, pri_join_mask);
1194 return;
1195 }
1196 /* single priority group */
1197 if (pg_help_data->data[0].pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1198 /* If there are both pauseable and non-pauseable priorities,
1199 * the pauseable priorities go to the first queue and
1200 * the non-pauseable priorities go to the second queue.
1201 */
1202 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1203 /* Pauseable */
1204 cos_data->data[0].pausable = true;
1205 /* Non pauseable.*/
1206 cos_data->data[1].pausable = false;
1207
1208 if (2 == num_of_dif_pri) {
1209 cos_data->data[0].cos_bw = 50;
1210 cos_data->data[1].cos_bw = 50;
1211 }
1212
1213 if (3 == num_of_dif_pri) {
1214 if (POWER_OF_2(DCBX_PFC_PRI_GET_PAUSE(bp,
1215 pri_join_mask))) {
1216 cos_data->data[0].cos_bw = 33;
1217 cos_data->data[1].cos_bw = 67;
1218 } else {
1219 cos_data->data[0].cos_bw = 67;
1220 cos_data->data[1].cos_bw = 33;
1221 }
1222 }
1223
1224 } else if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask)) {
1225 /* If there are only pauseable priorities,
1226 * then one/two priorities go to the first queue
1227 * and one priority goes to the second queue.
1228 */
1229 if (2 == num_of_dif_pri) {
1230 cos_data->data[0].cos_bw = 50;
1231 cos_data->data[1].cos_bw = 50;
1232 } else {
1233 cos_data->data[0].cos_bw = 67;
1234 cos_data->data[1].cos_bw = 33;
1235 }
1236 cos_data->data[1].pausable = true;
1237 cos_data->data[0].pausable = true;
1238 /* All priorities except FCOE */
1239 cos_data->data[0].pri_join_mask = (pri_join_mask &
1240 ((u8)~(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE])));
1241 /* Only FCOE priority.*/
1242 cos_data->data[1].pri_join_mask =
1243 (1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]);
1244 } else
1245 /* If there are only non-pauseable priorities,
1246 * they will all go to the same queue.
1247 */
1248 bnx2x_dcbx_ets_disabled_entry_data(bp,
1249 cos_data, pri_join_mask);
1250 } else {
1251 /* priority group which is not BW limited (PG#15):*/
1252 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1253 /* If there are both pauseable and non-pauseable
1254 * priorities, the pauseable priorities go to the first
1255 * queue and the non-pauseable priorities
1256 * go to the second queue.
1257 */
1258 if (DCBX_PFC_PRI_GET_PAUSE(bp, pri_join_mask) >
1259 DCBX_PFC_PRI_GET_NON_PAUSE(bp, pri_join_mask)) {
1260 cos_data->data[0].strict =
1261 BNX2X_DCBX_STRICT_COS_HIGHEST;
1262 cos_data->data[1].strict =
1263 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1264 BNX2X_DCBX_STRICT_COS_HIGHEST);
1265 } else {
1266 cos_data->data[0].strict =
1267 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1268 BNX2X_DCBX_STRICT_COS_HIGHEST);
1269 cos_data->data[1].strict =
1270 BNX2X_DCBX_STRICT_COS_HIGHEST;
1271 }
1272 /* Pauseable */
1273 cos_data->data[0].pausable = true;
1274 /* Non pause-able.*/
1275 cos_data->data[1].pausable = false;
1276 } else {
1277 /* If there are only pauseable priorities or
1278 * only non-pauseable,* the lower priorities go
1279 * to the first queue and the higherpriorities go
1280 * to the second queue.
1281 */
1282 cos_data->data[0].pausable =
1283 cos_data->data[1].pausable =
1284 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1285
1286 for (i = 0 ; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) {
1287 pri_tested = 1 << bp->dcbx_port_params.
1288 app.traffic_type_priority[i];
1289 /* Remove priority tested */
1290 pri_mask_without_pri =
1291 (pri_join_mask & ((u8)(~pri_tested)));
1292 if (pri_mask_without_pri < pri_tested)
1293 break;
1294 }
1295
1296 if (i == LLFC_DRIVER_TRAFFIC_TYPE_MAX)
1297 BNX2X_ERR("Invalid value for pri_join_mask - could not find a priority\n");
1298
1299 cos_data->data[0].pri_join_mask = pri_mask_without_pri;
1300 cos_data->data[1].pri_join_mask = pri_tested;
1301 /* Both queues are strict priority,
1302 * and that with the highest priority
1303 * gets the highest strict priority in the arbiter.
1304 */
1305 cos_data->data[0].strict =
1306 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1307 BNX2X_DCBX_STRICT_COS_HIGHEST);
1308 cos_data->data[1].strict =
1309 BNX2X_DCBX_STRICT_COS_HIGHEST;
1310 }
1311 }
1312 }
1313
1314 static void bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1315 struct bnx2x *bp,
1316 struct pg_help_data *pg_help_data,
1317 struct dcbx_ets_feature *ets,
1318 struct cos_help_data *cos_data,
1319 u32 *pg_pri_orginal_spread,
1320 u32 pri_join_mask,
1321 u8 num_of_dif_pri)
1322 {
1323 u8 i = 0;
1324 u8 pg[DCBX_COS_MAX_NUM_E2] = { 0 };
1325
1326 /* If there are both pauseable and non-pauseable priorities,
1327 * the pauseable priorities go to the first queue and
1328 * the non-pauseable priorities go to the second queue.
1329 */
1330 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1331 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1332 pg_help_data->data[0].pg_priority) ||
1333 IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1334 pg_help_data->data[1].pg_priority)) {
1335 /* If one PG contains both pauseable and
1336 * non-pauseable priorities then ETS is disabled.
1337 */
1338 bnx2x_dcbx_separate_pauseable_from_non(bp, cos_data,
1339 pg_pri_orginal_spread, ets);
1340 bp->dcbx_port_params.ets.enabled = false;
1341 return;
1342 }
1343
1344 /* Pauseable */
1345 cos_data->data[0].pausable = true;
1346 /* Non pauseable. */
1347 cos_data->data[1].pausable = false;
1348 if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp,
1349 pg_help_data->data[0].pg_priority)) {
1350 /* 0 is pauseable */
1351 cos_data->data[0].pri_join_mask =
1352 pg_help_data->data[0].pg_priority;
1353 pg[0] = pg_help_data->data[0].pg;
1354 cos_data->data[1].pri_join_mask =
1355 pg_help_data->data[1].pg_priority;
1356 pg[1] = pg_help_data->data[1].pg;
1357 } else {/* 1 is pauseable */
1358 cos_data->data[0].pri_join_mask =
1359 pg_help_data->data[1].pg_priority;
1360 pg[0] = pg_help_data->data[1].pg;
1361 cos_data->data[1].pri_join_mask =
1362 pg_help_data->data[0].pg_priority;
1363 pg[1] = pg_help_data->data[0].pg;
1364 }
1365 } else {
1366 /* If there are only pauseable priorities or
1367 * only non-pauseable, each PG goes to a queue.
1368 */
1369 cos_data->data[0].pausable = cos_data->data[1].pausable =
1370 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1371 cos_data->data[0].pri_join_mask =
1372 pg_help_data->data[0].pg_priority;
1373 pg[0] = pg_help_data->data[0].pg;
1374 cos_data->data[1].pri_join_mask =
1375 pg_help_data->data[1].pg_priority;
1376 pg[1] = pg_help_data->data[1].pg;
1377 }
1378
1379 /* There can be only one strict pg */
1380 for (i = 0 ; i < ARRAY_SIZE(pg); i++) {
1381 if (pg[i] < DCBX_MAX_NUM_PG_BW_ENTRIES)
1382 cos_data->data[i].cos_bw =
1383 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg[i]);
1384 else
1385 cos_data->data[i].strict =
1386 BNX2X_DCBX_STRICT_COS_HIGHEST;
1387 }
1388 }
1389
1390 static int bnx2x_dcbx_join_pgs(
1391 struct bnx2x *bp,
1392 struct dcbx_ets_feature *ets,
1393 struct pg_help_data *pg_help_data,
1394 u8 required_num_of_pg)
1395 {
1396 u8 entry_joined = pg_help_data->num_of_pg - 1;
1397 u8 entry_removed = entry_joined + 1;
1398 u8 pg_joined = 0;
1399
1400 if (required_num_of_pg == 0 || ARRAY_SIZE(pg_help_data->data)
1401 <= pg_help_data->num_of_pg) {
1402
1403 BNX2X_ERR("required_num_of_pg can't be zero\n");
1404 return -EINVAL;
1405 }
1406
1407 while (required_num_of_pg < pg_help_data->num_of_pg) {
1408 entry_joined = pg_help_data->num_of_pg - 2;
1409 entry_removed = entry_joined + 1;
1410 /* protect index */
1411 entry_removed %= ARRAY_SIZE(pg_help_data->data);
1412
1413 pg_help_data->data[entry_joined].pg_priority |=
1414 pg_help_data->data[entry_removed].pg_priority;
1415
1416 pg_help_data->data[entry_joined].num_of_dif_pri +=
1417 pg_help_data->data[entry_removed].num_of_dif_pri;
1418
1419 if (pg_help_data->data[entry_joined].pg == DCBX_STRICT_PRI_PG ||
1420 pg_help_data->data[entry_removed].pg == DCBX_STRICT_PRI_PG)
1421 /* Entries joined strict priority rules */
1422 pg_help_data->data[entry_joined].pg =
1423 DCBX_STRICT_PRI_PG;
1424 else {
1425 /* Entries can be joined join BW */
1426 pg_joined = DCBX_PG_BW_GET(ets->pg_bw_tbl,
1427 pg_help_data->data[entry_joined].pg) +
1428 DCBX_PG_BW_GET(ets->pg_bw_tbl,
1429 pg_help_data->data[entry_removed].pg);
1430
1431 DCBX_PG_BW_SET(ets->pg_bw_tbl,
1432 pg_help_data->data[entry_joined].pg, pg_joined);
1433 }
1434 /* Joined the entries */
1435 pg_help_data->num_of_pg--;
1436 }
1437
1438 return 0;
1439 }
1440
1441 static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1442 struct bnx2x *bp,
1443 struct pg_help_data *pg_help_data,
1444 struct dcbx_ets_feature *ets,
1445 struct cos_help_data *cos_data,
1446 u32 *pg_pri_orginal_spread,
1447 u32 pri_join_mask,
1448 u8 num_of_dif_pri)
1449 {
1450 u8 i = 0;
1451 u32 pri_tested = 0;
1452 u8 entry = 0;
1453 u8 pg_entry = 0;
1454 bool b_found_strict = false;
1455 u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1456
1457 cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1458 /* If there are both pauseable and non-pauseable priorities,
1459 * the pauseable priorities go to the first queue and the
1460 * non-pauseable priorities go to the second queue.
1461 */
1462 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask))
1463 bnx2x_dcbx_separate_pauseable_from_non(bp,
1464 cos_data, pg_pri_orginal_spread, ets);
1465 else {
1466 /* If two BW-limited PG-s were combined to one queue,
1467 * the BW is their sum.
1468 *
1469 * If there are only pauseable priorities or only non-pauseable,
1470 * and there are both BW-limited and non-BW-limited PG-s,
1471 * the BW-limited PG/s go to one queue and the non-BW-limited
1472 * PG/s go to the second queue.
1473 *
1474 * If there are only pauseable priorities or only non-pauseable
1475 * and all are BW limited, then two priorities go to the first
1476 * queue and one priority goes to the second queue.
1477 *
1478 * We will join this two cases:
1479 * if one is BW limited it will go to the secoend queue
1480 * otherwise the last priority will get it
1481 */
1482
1483 cos_data->data[0].pausable = cos_data->data[1].pausable =
1484 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1485
1486 for (i = 0 ; i < num_of_pri; i++) {
1487 pri_tested = 1 << bp->dcbx_port_params.
1488 app.traffic_type_priority[i];
1489 pg_entry = (u8)pg_pri_orginal_spread[bp->
1490 dcbx_port_params.app.traffic_type_priority[i]];
1491
1492 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1493 entry = 0;
1494
1495 if (i == (num_of_pri-1) &&
1496 false == b_found_strict)
1497 /* last entry will be handled separately
1498 * If no priority is strict than last
1499 * enty goes to last queue.*/
1500 entry = 1;
1501 cos_data->data[entry].pri_join_mask |=
1502 pri_tested;
1503 bnx2x_dcbx_add_to_cos_bw(bp,
1504 &cos_data->data[entry],
1505 DCBX_PG_BW_GET(ets->pg_bw_tbl,
1506 pg_entry));
1507 } else {
1508 b_found_strict = true;
1509 cos_data->data[1].pri_join_mask |= pri_tested;
1510 /* If we join a group and one is strict
1511 * than the bw rulls */
1512 cos_data->data[1].strict =
1513 BNX2X_DCBX_STRICT_COS_HIGHEST;
1514 }
1515 }
1516 }
1517 }
1518
1519
1520 static void bnx2x_dcbx_2cos_limit_cee_fill_cos_params(struct bnx2x *bp,
1521 struct pg_help_data *help_data,
1522 struct dcbx_ets_feature *ets,
1523 struct cos_help_data *cos_data,
1524 u32 *pg_pri_orginal_spread,
1525 u32 pri_join_mask,
1526 u8 num_of_dif_pri)
1527 {
1528
1529 /* default E2 settings */
1530 cos_data->num_of_cos = DCBX_COS_MAX_NUM_E2;
1531
1532 switch (help_data->num_of_pg) {
1533 case 1:
1534 bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(
1535 bp,
1536 help_data,
1537 cos_data,
1538 pri_join_mask,
1539 num_of_dif_pri);
1540 break;
1541 case 2:
1542 bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1543 bp,
1544 help_data,
1545 ets,
1546 cos_data,
1547 pg_pri_orginal_spread,
1548 pri_join_mask,
1549 num_of_dif_pri);
1550 break;
1551
1552 case 3:
1553 bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1554 bp,
1555 help_data,
1556 ets,
1557 cos_data,
1558 pg_pri_orginal_spread,
1559 pri_join_mask,
1560 num_of_dif_pri);
1561 break;
1562 default:
1563 BNX2X_ERR("Wrong pg_help_data.num_of_pg\n");
1564 bnx2x_dcbx_ets_disabled_entry_data(bp,
1565 cos_data, pri_join_mask);
1566 }
1567 }
1568
1569 static int bnx2x_dcbx_spread_strict_pri(struct bnx2x *bp,
1570 struct cos_help_data *cos_data,
1571 u8 entry,
1572 u8 num_spread_of_entries,
1573 u8 strict_app_pris)
1574 {
1575 u8 strict_pri = BNX2X_DCBX_STRICT_COS_HIGHEST;
1576 u8 num_of_app_pri = MAX_PFC_PRIORITIES;
1577 u8 app_pri_bit = 0;
1578
1579 while (num_spread_of_entries && num_of_app_pri > 0) {
1580 app_pri_bit = 1 << (num_of_app_pri - 1);
1581 if (app_pri_bit & strict_app_pris) {
1582 struct cos_entry_help_data *data = &cos_data->
1583 data[entry];
1584 num_spread_of_entries--;
1585 if (num_spread_of_entries == 0) {
1586 /* last entry needed put all the entries left */
1587 data->cos_bw = DCBX_INVALID_COS_BW;
1588 data->strict = strict_pri;
1589 data->pri_join_mask = strict_app_pris;
1590 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1591 data->pri_join_mask);
1592 } else {
1593 strict_app_pris &= ~app_pri_bit;
1594
1595 data->cos_bw = DCBX_INVALID_COS_BW;
1596 data->strict = strict_pri;
1597 data->pri_join_mask = app_pri_bit;
1598 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1599 data->pri_join_mask);
1600 }
1601
1602 strict_pri =
1603 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(strict_pri);
1604 entry++;
1605 }
1606
1607 num_of_app_pri--;
1608 }
1609
1610 if (num_spread_of_entries) {
1611 BNX2X_ERR("Didn't succeed to spread strict priorities\n");
1612 return -EINVAL;
1613 }
1614
1615 return 0;
1616 }
1617
1618 static u8 bnx2x_dcbx_cee_fill_strict_pri(struct bnx2x *bp,
1619 struct cos_help_data *cos_data,
1620 u8 entry,
1621 u8 num_spread_of_entries,
1622 u8 strict_app_pris)
1623 {
1624
1625 if (bnx2x_dcbx_spread_strict_pri(bp, cos_data, entry,
1626 num_spread_of_entries,
1627 strict_app_pris)) {
1628 struct cos_entry_help_data *data = &cos_data->
1629 data[entry];
1630 /* Fill BW entry */
1631 data->cos_bw = DCBX_INVALID_COS_BW;
1632 data->strict = BNX2X_DCBX_STRICT_COS_HIGHEST;
1633 data->pri_join_mask = strict_app_pris;
1634 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1635 data->pri_join_mask);
1636 return 1;
1637 }
1638
1639 return num_spread_of_entries;
1640 }
1641
1642 static void bnx2x_dcbx_cee_fill_cos_params(struct bnx2x *bp,
1643 struct pg_help_data *help_data,
1644 struct dcbx_ets_feature *ets,
1645 struct cos_help_data *cos_data,
1646 u32 pri_join_mask)
1647
1648 {
1649 u8 need_num_of_entries = 0;
1650 u8 i = 0;
1651 u8 entry = 0;
1652
1653 /*
1654 * if the number of requested PG-s in CEE is greater than 3
1655 * then the results are not determined since this is a violation
1656 * of the standard.
1657 */
1658 if (help_data->num_of_pg > DCBX_COS_MAX_NUM_E3B0) {
1659 if (bnx2x_dcbx_join_pgs(bp, ets, help_data,
1660 DCBX_COS_MAX_NUM_E3B0)) {
1661 BNX2X_ERR("Unable to reduce the number of PGs - we will disables ETS\n");
1662 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data,
1663 pri_join_mask);
1664 return;
1665 }
1666 }
1667
1668 for (i = 0 ; i < help_data->num_of_pg; i++) {
1669 struct pg_entry_help_data *pg = &help_data->data[i];
1670 if (pg->pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1671 struct cos_entry_help_data *data = &cos_data->
1672 data[entry];
1673 /* Fill BW entry */
1674 data->cos_bw = DCBX_PG_BW_GET(ets->pg_bw_tbl, pg->pg);
1675 data->strict = BNX2X_DCBX_STRICT_INVALID;
1676 data->pri_join_mask = pg->pg_priority;
1677 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1678 data->pri_join_mask);
1679
1680 entry++;
1681 } else {
1682 need_num_of_entries = min_t(u8,
1683 (u8)pg->num_of_dif_pri,
1684 (u8)DCBX_COS_MAX_NUM_E3B0 -
1685 help_data->num_of_pg + 1);
1686 /*
1687 * If there are still VOQ-s which have no associated PG,
1688 * then associate these VOQ-s to PG15. These PG-s will
1689 * be used for SP between priorities on PG15.
1690 */
1691 entry += bnx2x_dcbx_cee_fill_strict_pri(bp, cos_data,
1692 entry, need_num_of_entries, pg->pg_priority);
1693 }
1694 }
1695
1696 /* the entry will represent the number of COSes used */
1697 cos_data->num_of_cos = entry;
1698 }
1699 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
1700 struct pg_help_data *help_data,
1701 struct dcbx_ets_feature *ets,
1702 u32 *pg_pri_orginal_spread)
1703 {
1704 struct cos_help_data cos_data;
1705 u8 i = 0;
1706 u32 pri_join_mask = 0;
1707 u8 num_of_dif_pri = 0;
1708
1709 memset(&cos_data, 0, sizeof(cos_data));
1710
1711 /* Validate the pg value */
1712 for (i = 0; i < help_data->num_of_pg ; i++) {
1713 if (DCBX_STRICT_PRIORITY != help_data->data[i].pg &&
1714 DCBX_MAX_NUM_PG_BW_ENTRIES <= help_data->data[i].pg)
1715 BNX2X_ERR("Invalid pg[%d] data %x\n", i,
1716 help_data->data[i].pg);
1717 pri_join_mask |= help_data->data[i].pg_priority;
1718 num_of_dif_pri += help_data->data[i].num_of_dif_pri;
1719 }
1720
1721 /* defaults */
1722 cos_data.num_of_cos = 1;
1723 for (i = 0; i < ARRAY_SIZE(cos_data.data); i++) {
1724 cos_data.data[i].pri_join_mask = 0;
1725 cos_data.data[i].pausable = false;
1726 cos_data.data[i].strict = BNX2X_DCBX_STRICT_INVALID;
1727 cos_data.data[i].cos_bw = DCBX_INVALID_COS_BW;
1728 }
1729
1730 if (CHIP_IS_E3B0(bp))
1731 bnx2x_dcbx_cee_fill_cos_params(bp, help_data, ets,
1732 &cos_data, pri_join_mask);
1733 else /* E2 + E3A0 */
1734 bnx2x_dcbx_2cos_limit_cee_fill_cos_params(bp,
1735 help_data, ets,
1736 &cos_data,
1737 pg_pri_orginal_spread,
1738 pri_join_mask,
1739 num_of_dif_pri);
1740
1741 for (i = 0; i < cos_data.num_of_cos ; i++) {
1742 struct bnx2x_dcbx_cos_params *p =
1743 &bp->dcbx_port_params.ets.cos_params[i];
1744
1745 p->strict = cos_data.data[i].strict;
1746 p->bw_tbl = cos_data.data[i].cos_bw;
1747 p->pri_bitmask = cos_data.data[i].pri_join_mask;
1748 p->pauseable = cos_data.data[i].pausable;
1749
1750 /* sanity */
1751 if (p->bw_tbl != DCBX_INVALID_COS_BW ||
1752 p->strict != BNX2X_DCBX_STRICT_INVALID) {
1753 if (p->pri_bitmask == 0)
1754 BNX2X_ERR("Invalid pri_bitmask for %d\n", i);
1755
1756 if (CHIP_IS_E2(bp) || CHIP_IS_E3A0(bp)) {
1757
1758 if (p->pauseable &&
1759 DCBX_PFC_PRI_GET_NON_PAUSE(bp,
1760 p->pri_bitmask) != 0)
1761 BNX2X_ERR("Inconsistent config for pausable COS %d\n",
1762 i);
1763
1764 if (!p->pauseable &&
1765 DCBX_PFC_PRI_GET_PAUSE(bp,
1766 p->pri_bitmask) != 0)
1767 BNX2X_ERR("Inconsistent config for nonpausable COS %d\n",
1768 i);
1769 }
1770 }
1771
1772 if (p->pauseable)
1773 DP(BNX2X_MSG_DCB, "COS %d PAUSABLE prijoinmask 0x%x\n",
1774 i, cos_data.data[i].pri_join_mask);
1775 else
1776 DP(BNX2X_MSG_DCB,
1777 "COS %d NONPAUSABLE prijoinmask 0x%x\n",
1778 i, cos_data.data[i].pri_join_mask);
1779 }
1780
1781 bp->dcbx_port_params.ets.num_of_cos = cos_data.num_of_cos ;
1782 }
1783
1784 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
1785 u32 *set_configuration_ets_pg,
1786 u32 *pri_pg_tbl)
1787 {
1788 int i;
1789
1790 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
1791 set_configuration_ets_pg[i] = DCBX_PRI_PG_GET(pri_pg_tbl, i);
1792
1793 DP(BNX2X_MSG_DCB, "set_configuration_ets_pg[%d] = 0x%x\n",
1794 i, set_configuration_ets_pg[i]);
1795 }
1796 }
1797
1798 static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
1799 struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1800 {
1801 u16 pri_bit = 0;
1802 u8 cos = 0, pri = 0;
1803 struct priority_cos *tt2cos;
1804 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1805
1806 memset(pfc_fw_cfg, 0, sizeof(*pfc_fw_cfg));
1807
1808 /* to disable DCB - the structure must be zeroed */
1809 if (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR)
1810 return;
1811
1812 /*shortcut*/
1813 tt2cos = pfc_fw_cfg->traffic_type_to_priority_cos;
1814
1815 /* Fw version should be incremented each update */
1816 pfc_fw_cfg->dcb_version = ++bp->dcb_version;
1817 pfc_fw_cfg->dcb_enabled = 1;
1818
1819 /* Fill priority parameters */
1820 for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1821 tt2cos[pri].priority = ttp[pri];
1822 pri_bit = 1 << tt2cos[pri].priority;
1823
1824 /* Fill COS parameters based on COS calculated to
1825 * make it more general for future use */
1826 for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++)
1827 if (bp->dcbx_port_params.ets.cos_params[cos].
1828 pri_bitmask & pri_bit)
1829 tt2cos[pri].cos = cos;
1830 }
1831
1832 /* we never want the FW to add a 0 vlan tag */
1833 pfc_fw_cfg->dont_add_pri_0_en = 1;
1834
1835 bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg);
1836 }
1837
1838 void bnx2x_dcbx_pmf_update(struct bnx2x *bp)
1839 {
1840 /* if we need to syncronize DCBX result from prev PMF
1841 * read it from shmem and update bp and netdev accordingly
1842 */
1843 if (SHMEM2_HAS(bp, drv_flags) &&
1844 GET_FLAGS(SHMEM2_RD(bp, drv_flags), 1 << DRV_FLAGS_DCB_CONFIGURED)) {
1845 /* Read neg results if dcbx is in the FW */
1846 if (bnx2x_dcbx_read_shmem_neg_results(bp))
1847 return;
1848
1849 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1850 bp->dcbx_error);
1851 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1852 bp->dcbx_error);
1853 #ifdef BCM_DCBNL
1854 /*
1855 * Add new app tlvs to dcbnl
1856 */
1857 bnx2x_dcbnl_update_applist(bp, false);
1858 /*
1859 * Send a notification for the new negotiated parameters
1860 */
1861 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
1862 #endif
1863 /*
1864 * reconfigure the netdevice with the results of the new
1865 * dcbx negotiation.
1866 */
1867 bnx2x_dcbx_update_tc_mapping(bp);
1868
1869 }
1870 }
1871
1872 /* DCB netlink */
1873 #ifdef BCM_DCBNL
1874
1875 #define BNX2X_DCBX_CAPS (DCB_CAP_DCBX_LLD_MANAGED | \
1876 DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC)
1877
1878 static inline bool bnx2x_dcbnl_set_valid(struct bnx2x *bp)
1879 {
1880 /* validate dcbnl call that may change HW state:
1881 * DCB is on and DCBX mode was SUCCESSFULLY set by the user.
1882 */
1883 return bp->dcb_state && bp->dcbx_mode_uset;
1884 }
1885
1886 static u8 bnx2x_dcbnl_get_state(struct net_device *netdev)
1887 {
1888 struct bnx2x *bp = netdev_priv(netdev);
1889 DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcb_state);
1890 return bp->dcb_state;
1891 }
1892
1893 static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state)
1894 {
1895 struct bnx2x *bp = netdev_priv(netdev);
1896 DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");
1897
1898 bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled);
1899 return 0;
1900 }
1901
1902 static void bnx2x_dcbnl_get_perm_hw_addr(struct net_device *netdev,
1903 u8 *perm_addr)
1904 {
1905 struct bnx2x *bp = netdev_priv(netdev);
1906 DP(BNX2X_MSG_DCB, "GET-PERM-ADDR\n");
1907
1908 /* first the HW mac address */
1909 memcpy(perm_addr, netdev->dev_addr, netdev->addr_len);
1910
1911 #ifdef BCM_CNIC
1912 /* second SAN address */
1913 memcpy(perm_addr+netdev->addr_len, bp->fip_mac, netdev->addr_len);
1914 #endif
1915 }
1916
1917 static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio,
1918 u8 prio_type, u8 pgid, u8 bw_pct,
1919 u8 up_map)
1920 {
1921 struct bnx2x *bp = netdev_priv(netdev);
1922
1923 DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, pgid);
1924 if (!bnx2x_dcbnl_set_valid(bp) || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
1925 return;
1926
1927 /**
1928 * bw_pct ingnored - band-width percentage devision between user
1929 * priorities within the same group is not
1930 * standard and hence not supported
1931 *
1932 * prio_type igonred - priority levels within the same group are not
1933 * standard and hence are not supported. According
1934 * to the standard pgid 15 is dedicated to strict
1935 * prioirty traffic (on the port level).
1936 *
1937 * up_map ignored
1938 */
1939
1940 bp->dcbx_config_params.admin_configuration_ets_pg[prio] = pgid;
1941 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1942 }
1943
1944 static void bnx2x_dcbnl_set_pg_bwgcfg_tx(struct net_device *netdev,
1945 int pgid, u8 bw_pct)
1946 {
1947 struct bnx2x *bp = netdev_priv(netdev);
1948 DP(BNX2X_MSG_DCB, "pgid[%d] = %d\n", pgid, bw_pct);
1949
1950 if (!bnx2x_dcbnl_set_valid(bp) || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
1951 return;
1952
1953 bp->dcbx_config_params.admin_configuration_bw_precentage[pgid] = bw_pct;
1954 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1955 }
1956
1957 static void bnx2x_dcbnl_set_pg_tccfg_rx(struct net_device *netdev, int prio,
1958 u8 prio_type, u8 pgid, u8 bw_pct,
1959 u8 up_map)
1960 {
1961 struct bnx2x *bp = netdev_priv(netdev);
1962 DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n");
1963 }
1964
1965 static void bnx2x_dcbnl_set_pg_bwgcfg_rx(struct net_device *netdev,
1966 int pgid, u8 bw_pct)
1967 {
1968 struct bnx2x *bp = netdev_priv(netdev);
1969 DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n");
1970 }
1971
1972 static void bnx2x_dcbnl_get_pg_tccfg_tx(struct net_device *netdev, int prio,
1973 u8 *prio_type, u8 *pgid, u8 *bw_pct,
1974 u8 *up_map)
1975 {
1976 struct bnx2x *bp = netdev_priv(netdev);
1977 DP(BNX2X_MSG_DCB, "prio = %d\n", prio);
1978
1979 /**
1980 * bw_pct ingnored - band-width percentage devision between user
1981 * priorities within the same group is not
1982 * standard and hence not supported
1983 *
1984 * prio_type igonred - priority levels within the same group are not
1985 * standard and hence are not supported. According
1986 * to the standard pgid 15 is dedicated to strict
1987 * prioirty traffic (on the port level).
1988 *
1989 * up_map ignored
1990 */
1991 *up_map = *bw_pct = *prio_type = *pgid = 0;
1992
1993 if (!bp->dcb_state || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
1994 return;
1995
1996 *pgid = DCBX_PRI_PG_GET(bp->dcbx_local_feat.ets.pri_pg_tbl, prio);
1997 }
1998
1999 static void bnx2x_dcbnl_get_pg_bwgcfg_tx(struct net_device *netdev,
2000 int pgid, u8 *bw_pct)
2001 {
2002 struct bnx2x *bp = netdev_priv(netdev);
2003 DP(BNX2X_MSG_DCB, "pgid = %d\n", pgid);
2004
2005 *bw_pct = 0;
2006
2007 if (!bp->dcb_state || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
2008 return;
2009
2010 *bw_pct = DCBX_PG_BW_GET(bp->dcbx_local_feat.ets.pg_bw_tbl, pgid);
2011 }
2012
2013 static void bnx2x_dcbnl_get_pg_tccfg_rx(struct net_device *netdev, int prio,
2014 u8 *prio_type, u8 *pgid, u8 *bw_pct,
2015 u8 *up_map)
2016 {
2017 struct bnx2x *bp = netdev_priv(netdev);
2018 DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n");
2019
2020 *prio_type = *pgid = *bw_pct = *up_map = 0;
2021 }
2022
2023 static void bnx2x_dcbnl_get_pg_bwgcfg_rx(struct net_device *netdev,
2024 int pgid, u8 *bw_pct)
2025 {
2026 struct bnx2x *bp = netdev_priv(netdev);
2027 DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n");
2028
2029 *bw_pct = 0;
2030 }
2031
2032 static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio,
2033 u8 setting)
2034 {
2035 struct bnx2x *bp = netdev_priv(netdev);
2036 DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, setting);
2037
2038 if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES)
2039 return;
2040
2041 bp->dcbx_config_params.admin_pfc_bitmap |= ((setting ? 1 : 0) << prio);
2042
2043 if (setting)
2044 bp->dcbx_config_params.admin_pfc_tx_enable = 1;
2045 }
2046
2047 static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio,
2048 u8 *setting)
2049 {
2050 struct bnx2x *bp = netdev_priv(netdev);
2051 DP(BNX2X_MSG_DCB, "prio = %d\n", prio);
2052
2053 *setting = 0;
2054
2055 if (!bp->dcb_state || prio >= MAX_PFC_PRIORITIES)
2056 return;
2057
2058 *setting = (bp->dcbx_local_feat.pfc.pri_en_bitmap >> prio) & 0x1;
2059 }
2060
2061 static u8 bnx2x_dcbnl_set_all(struct net_device *netdev)
2062 {
2063 struct bnx2x *bp = netdev_priv(netdev);
2064 int rc = 0;
2065
2066 DP(BNX2X_MSG_DCB, "SET-ALL\n");
2067
2068 if (!bnx2x_dcbnl_set_valid(bp))
2069 return 1;
2070
2071 if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
2072 netdev_err(bp->dev,
2073 "Handling parity error recovery. Try again later\n");
2074 return 1;
2075 }
2076 if (netif_running(bp->dev))
2077 bnx2x_dcbx_init(bp, true);
2078 DP(BNX2X_MSG_DCB, "set_dcbx_params done (%d)\n", rc);
2079 if (rc)
2080 return 1;
2081
2082 return 0;
2083 }
2084
2085 static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap)
2086 {
2087 struct bnx2x *bp = netdev_priv(netdev);
2088 u8 rval = 0;
2089
2090 if (bp->dcb_state) {
2091 switch (capid) {
2092 case DCB_CAP_ATTR_PG:
2093 *cap = true;
2094 break;
2095 case DCB_CAP_ATTR_PFC:
2096 *cap = true;
2097 break;
2098 case DCB_CAP_ATTR_UP2TC:
2099 *cap = false;
2100 break;
2101 case DCB_CAP_ATTR_PG_TCS:
2102 *cap = 0x80; /* 8 priorities for PGs */
2103 break;
2104 case DCB_CAP_ATTR_PFC_TCS:
2105 *cap = 0x80; /* 8 priorities for PFC */
2106 break;
2107 case DCB_CAP_ATTR_GSP:
2108 *cap = true;
2109 break;
2110 case DCB_CAP_ATTR_BCN:
2111 *cap = false;
2112 break;
2113 case DCB_CAP_ATTR_DCBX:
2114 *cap = BNX2X_DCBX_CAPS;
2115 break;
2116 default:
2117 BNX2X_ERR("Non valid capability ID\n");
2118 rval = -EINVAL;
2119 break;
2120 }
2121 } else {
2122 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2123 rval = -EINVAL;
2124 }
2125
2126 DP(BNX2X_MSG_DCB, "capid %d:%x\n", capid, *cap);
2127 return rval;
2128 }
2129
2130 static int bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num)
2131 {
2132 struct bnx2x *bp = netdev_priv(netdev);
2133 u8 rval = 0;
2134
2135 DP(BNX2X_MSG_DCB, "tcid %d\n", tcid);
2136
2137 if (bp->dcb_state) {
2138 switch (tcid) {
2139 case DCB_NUMTCS_ATTR_PG:
2140 *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2141 DCBX_COS_MAX_NUM_E2;
2142 break;
2143 case DCB_NUMTCS_ATTR_PFC:
2144 *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2145 DCBX_COS_MAX_NUM_E2;
2146 break;
2147 default:
2148 BNX2X_ERR("Non valid TC-ID\n");
2149 rval = -EINVAL;
2150 break;
2151 }
2152 } else {
2153 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2154 rval = -EINVAL;
2155 }
2156
2157 return rval;
2158 }
2159
2160 static int bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num)
2161 {
2162 struct bnx2x *bp = netdev_priv(netdev);
2163 DP(BNX2X_MSG_DCB, "num tcs = %d; Not supported\n", num);
2164 return -EINVAL;
2165 }
2166
2167 static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev)
2168 {
2169 struct bnx2x *bp = netdev_priv(netdev);
2170 DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcbx_local_feat.pfc.enabled);
2171
2172 if (!bp->dcb_state)
2173 return 0;
2174
2175 return bp->dcbx_local_feat.pfc.enabled;
2176 }
2177
2178 static void bnx2x_dcbnl_set_pfc_state(struct net_device *netdev, u8 state)
2179 {
2180 struct bnx2x *bp = netdev_priv(netdev);
2181 DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");
2182
2183 if (!bnx2x_dcbnl_set_valid(bp))
2184 return;
2185
2186 bp->dcbx_config_params.admin_pfc_tx_enable =
2187 bp->dcbx_config_params.admin_pfc_enable = (state ? 1 : 0);
2188 }
2189
2190 static void bnx2x_admin_app_set_ent(
2191 struct bnx2x_admin_priority_app_table *app_ent,
2192 u8 idtype, u16 idval, u8 up)
2193 {
2194 app_ent->valid = 1;
2195
2196 switch (idtype) {
2197 case DCB_APP_IDTYPE_ETHTYPE:
2198 app_ent->traffic_type = TRAFFIC_TYPE_ETH;
2199 break;
2200 case DCB_APP_IDTYPE_PORTNUM:
2201 app_ent->traffic_type = TRAFFIC_TYPE_PORT;
2202 break;
2203 default:
2204 break; /* never gets here */
2205 }
2206 app_ent->app_id = idval;
2207 app_ent->priority = up;
2208 }
2209
2210 static bool bnx2x_admin_app_is_equal(
2211 struct bnx2x_admin_priority_app_table *app_ent,
2212 u8 idtype, u16 idval)
2213 {
2214 if (!app_ent->valid)
2215 return false;
2216
2217 switch (idtype) {
2218 case DCB_APP_IDTYPE_ETHTYPE:
2219 if (app_ent->traffic_type != TRAFFIC_TYPE_ETH)
2220 return false;
2221 break;
2222 case DCB_APP_IDTYPE_PORTNUM:
2223 if (app_ent->traffic_type != TRAFFIC_TYPE_PORT)
2224 return false;
2225 break;
2226 default:
2227 return false;
2228 }
2229 if (app_ent->app_id != idval)
2230 return false;
2231
2232 return true;
2233 }
2234
2235 static int bnx2x_set_admin_app_up(struct bnx2x *bp, u8 idtype, u16 idval, u8 up)
2236 {
2237 int i, ff;
2238
2239 /* iterate over the app entries looking for idtype and idval */
2240 for (i = 0, ff = -1; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
2241 struct bnx2x_admin_priority_app_table *app_ent =
2242 &bp->dcbx_config_params.admin_priority_app_table[i];
2243 if (bnx2x_admin_app_is_equal(app_ent, idtype, idval))
2244 break;
2245
2246 if (ff < 0 && !app_ent->valid)
2247 ff = i;
2248 }
2249 if (i < DCBX_CONFIG_MAX_APP_PROTOCOL)
2250 /* if found overwrite up */
2251 bp->dcbx_config_params.
2252 admin_priority_app_table[i].priority = up;
2253 else if (ff >= 0)
2254 /* not found use first-free */
2255 bnx2x_admin_app_set_ent(
2256 &bp->dcbx_config_params.admin_priority_app_table[ff],
2257 idtype, idval, up);
2258 else {
2259 /* app table is full */
2260 BNX2X_ERR("Application table is too large\n");
2261 return -EBUSY;
2262 }
2263
2264 /* up configured, if not 0 make sure feature is enabled */
2265 if (up)
2266 bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
2267
2268 return 0;
2269 }
2270
2271 static u8 bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype,
2272 u16 idval, u8 up)
2273 {
2274 struct bnx2x *bp = netdev_priv(netdev);
2275
2276 DP(BNX2X_MSG_DCB, "app_type %d, app_id %x, prio bitmap %d\n",
2277 idtype, idval, up);
2278
2279 if (!bnx2x_dcbnl_set_valid(bp)) {
2280 DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
2281 return -EINVAL;
2282 }
2283
2284 /* verify idtype */
2285 switch (idtype) {
2286 case DCB_APP_IDTYPE_ETHTYPE:
2287 case DCB_APP_IDTYPE_PORTNUM:
2288 break;
2289 default:
2290 DP(BNX2X_MSG_DCB, "Wrong ID type\n");
2291 return -EINVAL;
2292 }
2293 return bnx2x_set_admin_app_up(bp, idtype, idval, up);
2294 }
2295
2296 static u8 bnx2x_dcbnl_get_dcbx(struct net_device *netdev)
2297 {
2298 struct bnx2x *bp = netdev_priv(netdev);
2299 u8 state;
2300
2301 state = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE;
2302
2303 if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF)
2304 state |= DCB_CAP_DCBX_STATIC;
2305
2306 return state;
2307 }
2308
2309 static u8 bnx2x_dcbnl_set_dcbx(struct net_device *netdev, u8 state)
2310 {
2311 struct bnx2x *bp = netdev_priv(netdev);
2312 DP(BNX2X_MSG_DCB, "state = %02x\n", state);
2313
2314 /* set dcbx mode */
2315
2316 if ((state & BNX2X_DCBX_CAPS) != state) {
2317 BNX2X_ERR("Requested DCBX mode %x is beyond advertised capabilities\n",
2318 state);
2319 return 1;
2320 }
2321
2322 if (bp->dcb_state != BNX2X_DCB_STATE_ON) {
2323 BNX2X_ERR("DCB turned off, DCBX configuration is invalid\n");
2324 return 1;
2325 }
2326
2327 if (state & DCB_CAP_DCBX_STATIC)
2328 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_OFF;
2329 else
2330 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_ON;
2331
2332 bp->dcbx_mode_uset = true;
2333 return 0;
2334 }
2335
2336 static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid,
2337 u8 *flags)
2338 {
2339 struct bnx2x *bp = netdev_priv(netdev);
2340 u8 rval = 0;
2341
2342 DP(BNX2X_MSG_DCB, "featid %d\n", featid);
2343
2344 if (bp->dcb_state) {
2345 *flags = 0;
2346 switch (featid) {
2347 case DCB_FEATCFG_ATTR_PG:
2348 if (bp->dcbx_local_feat.ets.enabled)
2349 *flags |= DCB_FEATCFG_ENABLE;
2350 if (bp->dcbx_error & DCBX_LOCAL_ETS_ERROR)
2351 *flags |= DCB_FEATCFG_ERROR;
2352 break;
2353 case DCB_FEATCFG_ATTR_PFC:
2354 if (bp->dcbx_local_feat.pfc.enabled)
2355 *flags |= DCB_FEATCFG_ENABLE;
2356 if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR |
2357 DCBX_LOCAL_PFC_MISMATCH))
2358 *flags |= DCB_FEATCFG_ERROR;
2359 break;
2360 case DCB_FEATCFG_ATTR_APP:
2361 if (bp->dcbx_local_feat.app.enabled)
2362 *flags |= DCB_FEATCFG_ENABLE;
2363 if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR |
2364 DCBX_LOCAL_APP_MISMATCH))
2365 *flags |= DCB_FEATCFG_ERROR;
2366 break;
2367 default:
2368 BNX2X_ERR("Non valid featrue-ID\n");
2369 rval = -EINVAL;
2370 break;
2371 }
2372 } else {
2373 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2374 rval = -EINVAL;
2375 }
2376
2377 return rval;
2378 }
2379
2380 static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid,
2381 u8 flags)
2382 {
2383 struct bnx2x *bp = netdev_priv(netdev);
2384 u8 rval = 0;
2385
2386 DP(BNX2X_MSG_DCB, "featid = %d flags = %02x\n", featid, flags);
2387
2388 /* ignore the 'advertise' flag */
2389 if (bnx2x_dcbnl_set_valid(bp)) {
2390 switch (featid) {
2391 case DCB_FEATCFG_ATTR_PG:
2392 bp->dcbx_config_params.admin_ets_enable =
2393 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2394 bp->dcbx_config_params.admin_ets_willing =
2395 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2396 break;
2397 case DCB_FEATCFG_ATTR_PFC:
2398 bp->dcbx_config_params.admin_pfc_enable =
2399 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2400 bp->dcbx_config_params.admin_pfc_willing =
2401 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2402 break;
2403 case DCB_FEATCFG_ATTR_APP:
2404 /* ignore enable, always enabled */
2405 bp->dcbx_config_params.admin_app_priority_willing =
2406 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2407 break;
2408 default:
2409 BNX2X_ERR("Non valid featrue-ID\n");
2410 rval = -EINVAL;
2411 break;
2412 }
2413 } else {
2414 DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
2415 rval = -EINVAL;
2416 }
2417
2418 return rval;
2419 }
2420
2421 static int bnx2x_peer_appinfo(struct net_device *netdev,
2422 struct dcb_peer_app_info *info, u16* app_count)
2423 {
2424 int i;
2425 struct bnx2x *bp = netdev_priv(netdev);
2426
2427 DP(BNX2X_MSG_DCB, "APP-INFO\n");
2428
2429 info->willing = (bp->dcbx_remote_flags & DCBX_APP_REM_WILLING) ?: 0;
2430 info->error = (bp->dcbx_remote_flags & DCBX_APP_RX_ERROR) ?: 0;
2431 *app_count = 0;
2432
2433 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++)
2434 if (bp->dcbx_remote_feat.app.app_pri_tbl[i].appBitfield &
2435 DCBX_APP_ENTRY_VALID)
2436 (*app_count)++;
2437 return 0;
2438 }
2439
2440 static int bnx2x_peer_apptable(struct net_device *netdev,
2441 struct dcb_app *table)
2442 {
2443 int i, j;
2444 struct bnx2x *bp = netdev_priv(netdev);
2445
2446 DP(BNX2X_MSG_DCB, "APP-TABLE\n");
2447
2448 for (i = 0, j = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
2449 struct dcbx_app_priority_entry *ent =
2450 &bp->dcbx_remote_feat.app.app_pri_tbl[i];
2451
2452 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
2453 table[j].selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
2454 table[j].priority = bnx2x_dcbx_dcbnl_app_up(ent);
2455 table[j++].protocol = ent->app_id;
2456 }
2457 }
2458 return 0;
2459 }
2460
2461 static int bnx2x_cee_peer_getpg(struct net_device *netdev, struct cee_pg *pg)
2462 {
2463 int i;
2464 struct bnx2x *bp = netdev_priv(netdev);
2465
2466 pg->willing = (bp->dcbx_remote_flags & DCBX_ETS_REM_WILLING) ?: 0;
2467
2468 for (i = 0; i < CEE_DCBX_MAX_PGS; i++) {
2469 pg->pg_bw[i] =
2470 DCBX_PG_BW_GET(bp->dcbx_remote_feat.ets.pg_bw_tbl, i);
2471 pg->prio_pg[i] =
2472 DCBX_PRI_PG_GET(bp->dcbx_remote_feat.ets.pri_pg_tbl, i);
2473 }
2474 return 0;
2475 }
2476
2477 static int bnx2x_cee_peer_getpfc(struct net_device *netdev,
2478 struct cee_pfc *pfc)
2479 {
2480 struct bnx2x *bp = netdev_priv(netdev);
2481 pfc->tcs_supported = bp->dcbx_remote_feat.pfc.pfc_caps;
2482 pfc->pfc_en = bp->dcbx_remote_feat.pfc.pri_en_bitmap;
2483 return 0;
2484 }
2485
2486 const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = {
2487 .getstate = bnx2x_dcbnl_get_state,
2488 .setstate = bnx2x_dcbnl_set_state,
2489 .getpermhwaddr = bnx2x_dcbnl_get_perm_hw_addr,
2490 .setpgtccfgtx = bnx2x_dcbnl_set_pg_tccfg_tx,
2491 .setpgbwgcfgtx = bnx2x_dcbnl_set_pg_bwgcfg_tx,
2492 .setpgtccfgrx = bnx2x_dcbnl_set_pg_tccfg_rx,
2493 .setpgbwgcfgrx = bnx2x_dcbnl_set_pg_bwgcfg_rx,
2494 .getpgtccfgtx = bnx2x_dcbnl_get_pg_tccfg_tx,
2495 .getpgbwgcfgtx = bnx2x_dcbnl_get_pg_bwgcfg_tx,
2496 .getpgtccfgrx = bnx2x_dcbnl_get_pg_tccfg_rx,
2497 .getpgbwgcfgrx = bnx2x_dcbnl_get_pg_bwgcfg_rx,
2498 .setpfccfg = bnx2x_dcbnl_set_pfc_cfg,
2499 .getpfccfg = bnx2x_dcbnl_get_pfc_cfg,
2500 .setall = bnx2x_dcbnl_set_all,
2501 .getcap = bnx2x_dcbnl_get_cap,
2502 .getnumtcs = bnx2x_dcbnl_get_numtcs,
2503 .setnumtcs = bnx2x_dcbnl_set_numtcs,
2504 .getpfcstate = bnx2x_dcbnl_get_pfc_state,
2505 .setpfcstate = bnx2x_dcbnl_set_pfc_state,
2506 .setapp = bnx2x_dcbnl_set_app_up,
2507 .getdcbx = bnx2x_dcbnl_get_dcbx,
2508 .setdcbx = bnx2x_dcbnl_set_dcbx,
2509 .getfeatcfg = bnx2x_dcbnl_get_featcfg,
2510 .setfeatcfg = bnx2x_dcbnl_set_featcfg,
2511 .peer_getappinfo = bnx2x_peer_appinfo,
2512 .peer_getapptable = bnx2x_peer_apptable,
2513 .cee_peer_getpg = bnx2x_cee_peer_getpg,
2514 .cee_peer_getpfc = bnx2x_cee_peer_getpfc,
2515 };
2516
2517 #endif /* BCM_DCBNL */
Linux kernel - Deliverables
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