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Linux 3.4.102
[linux/fpc-iii.git] / drivers / net / ethernet / broadcom / bnx2x / bnx2x_dcb.c
blob4f9244bd7530877ff791defbe2082a0c2e9aa480
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 lossy and COS1 to lossless
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 = 0;
107 /* RX COS1 */
108 pfc_params.llfc_high_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp);
109
110 /* BRB configuration */
111 pfc_params.cos0_pauseable = false;
112 pfc_params.cos1_pauseable = true;
113
114 bnx2x_acquire_phy_lock(bp);
115 bp->link_params.feature_config_flags |= FEATURE_CONFIG_PFC_ENABLED;
116 bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &pfc_params);
117 bnx2x_release_phy_lock(bp);
118 }
119
120 static void bnx2x_pfc_clear(struct bnx2x *bp)
121 {
122 struct bnx2x_nig_brb_pfc_port_params nig_params = {0};
123 nig_params.pause_enable = 1;
124 bnx2x_acquire_phy_lock(bp);
125 bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_PFC_ENABLED;
126 bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &nig_params);
127 bnx2x_release_phy_lock(bp);
128 }
129
130 static void bnx2x_dump_dcbx_drv_param(struct bnx2x *bp,
131 struct dcbx_features *features,
132 u32 error)
133 {
134 u8 i = 0;
135 DP(NETIF_MSG_LINK, "local_mib.error %x\n", error);
136
137 /* PG */
138 DP(NETIF_MSG_LINK,
139 "local_mib.features.ets.enabled %x\n", features->ets.enabled);
140 for (i = 0; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++)
141 DP(NETIF_MSG_LINK,
142 "local_mib.features.ets.pg_bw_tbl[%d] %d\n", i,
143 DCBX_PG_BW_GET(features->ets.pg_bw_tbl, i));
144 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++)
145 DP(NETIF_MSG_LINK,
146 "local_mib.features.ets.pri_pg_tbl[%d] %d\n", i,
147 DCBX_PRI_PG_GET(features->ets.pri_pg_tbl, i));
148
149 /* pfc */
150 DP(BNX2X_MSG_DCB, "dcbx_features.pfc.pri_en_bitmap %x\n",
151 features->pfc.pri_en_bitmap);
152 DP(BNX2X_MSG_DCB, "dcbx_features.pfc.pfc_caps %x\n",
153 features->pfc.pfc_caps);
154 DP(BNX2X_MSG_DCB, "dcbx_features.pfc.enabled %x\n",
155 features->pfc.enabled);
156
157 DP(BNX2X_MSG_DCB, "dcbx_features.app.default_pri %x\n",
158 features->app.default_pri);
159 DP(BNX2X_MSG_DCB, "dcbx_features.app.tc_supported %x\n",
160 features->app.tc_supported);
161 DP(BNX2X_MSG_DCB, "dcbx_features.app.enabled %x\n",
162 features->app.enabled);
163 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
164 DP(BNX2X_MSG_DCB,
165 "dcbx_features.app.app_pri_tbl[%x].app_id %x\n",
166 i, features->app.app_pri_tbl[i].app_id);
167 DP(BNX2X_MSG_DCB,
168 "dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n",
169 i, features->app.app_pri_tbl[i].pri_bitmap);
170 DP(BNX2X_MSG_DCB,
171 "dcbx_features.app.app_pri_tbl[%x].appBitfield %x\n",
172 i, features->app.app_pri_tbl[i].appBitfield);
173 }
174 }
175
176 static void bnx2x_dcbx_get_ap_priority(struct bnx2x *bp,
177 u8 pri_bitmap,
178 u8 llfc_traf_type)
179 {
180 u32 pri = MAX_PFC_PRIORITIES;
181 u32 index = MAX_PFC_PRIORITIES - 1;
182 u32 pri_mask;
183 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
184
185 /* Choose the highest priority */
186 while ((MAX_PFC_PRIORITIES == pri) && (0 != index)) {
187 pri_mask = 1 << index;
188 if (GET_FLAGS(pri_bitmap, pri_mask))
189 pri = index ;
190 index--;
191 }
192
193 if (pri < MAX_PFC_PRIORITIES)
194 ttp[llfc_traf_type] = max_t(u32, ttp[llfc_traf_type], pri);
195 }
196
197 static void bnx2x_dcbx_get_ap_feature(struct bnx2x *bp,
198 struct dcbx_app_priority_feature *app,
199 u32 error) {
200 u8 index;
201 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
202
203 if (GET_FLAGS(error, DCBX_LOCAL_APP_ERROR))
204 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_ERROR\n");
205
206 if (GET_FLAGS(error, DCBX_LOCAL_APP_MISMATCH))
207 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_MISMATCH\n");
208
209 if (GET_FLAGS(error, DCBX_REMOTE_APP_TLV_NOT_FOUND))
210 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_APP_TLV_NOT_FOUND\n");
211 if (app->enabled &&
212 !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR | DCBX_LOCAL_APP_MISMATCH |
213 DCBX_REMOTE_APP_TLV_NOT_FOUND)) {
214
215 bp->dcbx_port_params.app.enabled = true;
216
217 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
218 ttp[index] = 0;
219
220 if (app->default_pri < MAX_PFC_PRIORITIES)
221 ttp[LLFC_TRAFFIC_TYPE_NW] = app->default_pri;
222
223 for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) {
224 struct dcbx_app_priority_entry *entry =
225 app->app_pri_tbl;
226
227 if (GET_FLAGS(entry[index].appBitfield,
228 DCBX_APP_SF_ETH_TYPE) &&
229 ETH_TYPE_FCOE == entry[index].app_id)
230 bnx2x_dcbx_get_ap_priority(bp,
231 entry[index].pri_bitmap,
232 LLFC_TRAFFIC_TYPE_FCOE);
233
234 if (GET_FLAGS(entry[index].appBitfield,
235 DCBX_APP_SF_PORT) &&
236 TCP_PORT_ISCSI == entry[index].app_id)
237 bnx2x_dcbx_get_ap_priority(bp,
238 entry[index].pri_bitmap,
239 LLFC_TRAFFIC_TYPE_ISCSI);
240 }
241 } else {
242 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_DISABLED\n");
243 bp->dcbx_port_params.app.enabled = false;
244 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
245 ttp[index] = INVALID_TRAFFIC_TYPE_PRIORITY;
246 }
247 }
248
249 static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp,
250 struct dcbx_ets_feature *ets,
251 u32 error) {
252 int i = 0;
253 u32 pg_pri_orginal_spread[DCBX_MAX_NUM_PG_BW_ENTRIES] = {0};
254 struct pg_help_data pg_help_data;
255 struct bnx2x_dcbx_cos_params *cos_params =
256 bp->dcbx_port_params.ets.cos_params;
257
258 memset(&pg_help_data, 0, sizeof(struct pg_help_data));
259
260
261 if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR))
262 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ERROR\n");
263
264 if (GET_FLAGS(error, DCBX_REMOTE_ETS_TLV_NOT_FOUND))
265 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_ETS_TLV_NOT_FOUND\n");
266
267 /* Clean up old settings of ets on COS */
268 for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params) ; i++) {
269 cos_params[i].pauseable = false;
270 cos_params[i].strict = BNX2X_DCBX_STRICT_INVALID;
271 cos_params[i].bw_tbl = DCBX_INVALID_COS_BW;
272 cos_params[i].pri_bitmask = 0;
273 }
274
275 if (bp->dcbx_port_params.app.enabled && ets->enabled &&
276 !GET_FLAGS(error,
277 DCBX_LOCAL_ETS_ERROR | DCBX_REMOTE_ETS_TLV_NOT_FOUND)) {
278 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ENABLE\n");
279 bp->dcbx_port_params.ets.enabled = true;
280
281 bnx2x_dcbx_get_ets_pri_pg_tbl(bp,
282 pg_pri_orginal_spread,
283 ets->pri_pg_tbl);
284
285 bnx2x_dcbx_get_num_pg_traf_type(bp,
286 pg_pri_orginal_spread,
287 &pg_help_data);
288
289 bnx2x_dcbx_fill_cos_params(bp, &pg_help_data,
290 ets, pg_pri_orginal_spread);
291
292 } else {
293 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_DISABLED\n");
294 bp->dcbx_port_params.ets.enabled = false;
295 ets->pri_pg_tbl[0] = 0;
296
297 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES ; i++)
298 DCBX_PG_BW_SET(ets->pg_bw_tbl, i, 1);
299 }
300 }
301
302 static void bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp,
303 struct dcbx_pfc_feature *pfc, u32 error)
304 {
305
306 if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR))
307 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_ERROR\n");
308
309 if (GET_FLAGS(error, DCBX_REMOTE_PFC_TLV_NOT_FOUND))
310 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_PFC_TLV_NOT_FOUND\n");
311 if (bp->dcbx_port_params.app.enabled && pfc->enabled &&
312 !GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR | DCBX_LOCAL_PFC_MISMATCH |
313 DCBX_REMOTE_PFC_TLV_NOT_FOUND)) {
314 bp->dcbx_port_params.pfc.enabled = true;
315 bp->dcbx_port_params.pfc.priority_non_pauseable_mask =
316 ~(pfc->pri_en_bitmap);
317 } else {
318 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_DISABLED\n");
319 bp->dcbx_port_params.pfc.enabled = false;
320 bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 0;
321 }
322 }
323
324 /* maps unmapped priorities to to the same COS as L2 */
325 static void bnx2x_dcbx_map_nw(struct bnx2x *bp)
326 {
327 int i;
328 u32 unmapped = (1 << MAX_PFC_PRIORITIES) - 1; /* all ones */
329 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
330 u32 nw_prio = 1 << ttp[LLFC_TRAFFIC_TYPE_NW];
331 struct bnx2x_dcbx_cos_params *cos_params =
332 bp->dcbx_port_params.ets.cos_params;
333
334 /* get unmapped priorities by clearing mapped bits */
335 for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
336 unmapped &= ~(1 << ttp[i]);
337
338 /* find cos for nw prio and extend it with unmapped */
339 for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params); i++) {
340 if (cos_params[i].pri_bitmask & nw_prio) {
341 /* extend the bitmask with unmapped */
342 DP(BNX2X_MSG_DCB,
343 "cos %d extended with 0x%08x\n", i, unmapped);
344 cos_params[i].pri_bitmask |= unmapped;
345 break;
346 }
347 }
348 }
349
350 static void bnx2x_get_dcbx_drv_param(struct bnx2x *bp,
351 struct dcbx_features *features,
352 u32 error)
353 {
354 bnx2x_dcbx_get_ap_feature(bp, &features->app, error);
355
356 bnx2x_dcbx_get_pfc_feature(bp, &features->pfc, error);
357
358 bnx2x_dcbx_get_ets_feature(bp, &features->ets, error);
359
360 bnx2x_dcbx_map_nw(bp);
361 }
362
363 #define DCBX_LOCAL_MIB_MAX_TRY_READ (100)
364 static int bnx2x_dcbx_read_mib(struct bnx2x *bp,
365 u32 *base_mib_addr,
366 u32 offset,
367 int read_mib_type)
368 {
369 int max_try_read = 0;
370 u32 mib_size, prefix_seq_num, suffix_seq_num;
371 struct lldp_remote_mib *remote_mib ;
372 struct lldp_local_mib *local_mib;
373
374
375 switch (read_mib_type) {
376 case DCBX_READ_LOCAL_MIB:
377 mib_size = sizeof(struct lldp_local_mib);
378 break;
379 case DCBX_READ_REMOTE_MIB:
380 mib_size = sizeof(struct lldp_remote_mib);
381 break;
382 default:
383 return 1; /*error*/
384 }
385
386 offset += BP_PORT(bp) * mib_size;
387
388 do {
389 bnx2x_read_data(bp, base_mib_addr, offset, mib_size);
390
391 max_try_read++;
392
393 switch (read_mib_type) {
394 case DCBX_READ_LOCAL_MIB:
395 local_mib = (struct lldp_local_mib *) base_mib_addr;
396 prefix_seq_num = local_mib->prefix_seq_num;
397 suffix_seq_num = local_mib->suffix_seq_num;
398 break;
399 case DCBX_READ_REMOTE_MIB:
400 remote_mib = (struct lldp_remote_mib *) base_mib_addr;
401 prefix_seq_num = remote_mib->prefix_seq_num;
402 suffix_seq_num = remote_mib->suffix_seq_num;
403 break;
404 default:
405 return 1; /*error*/
406 }
407 } while ((prefix_seq_num != suffix_seq_num) &&
408 (max_try_read < DCBX_LOCAL_MIB_MAX_TRY_READ));
409
410 if (max_try_read >= DCBX_LOCAL_MIB_MAX_TRY_READ) {
411 BNX2X_ERR("MIB could not be read\n");
412 return 1;
413 }
414
415 return 0;
416 }
417
418 static void bnx2x_pfc_set_pfc(struct bnx2x *bp)
419 {
420 if (bp->dcbx_port_params.pfc.enabled &&
421 !(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
422 /*
423 * 1. Fills up common PFC structures if required
424 * 2. Configure NIG, MAC and BRB via the elink
425 */
426 bnx2x_pfc_set(bp);
427 else
428 bnx2x_pfc_clear(bp);
429 }
430
431 static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
432 {
433 struct bnx2x_func_state_params func_params = {NULL};
434
435 func_params.f_obj = &bp->func_obj;
436 func_params.cmd = BNX2X_F_CMD_TX_STOP;
437
438 DP(BNX2X_MSG_DCB, "STOP TRAFFIC\n");
439 return bnx2x_func_state_change(bp, &func_params);
440 }
441
442 static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
443 {
444 struct bnx2x_func_state_params func_params = {NULL};
445 struct bnx2x_func_tx_start_params *tx_params =
446 &func_params.params.tx_start;
447
448 func_params.f_obj = &bp->func_obj;
449 func_params.cmd = BNX2X_F_CMD_TX_START;
450
451 bnx2x_dcbx_fw_struct(bp, tx_params);
452
453 DP(BNX2X_MSG_DCB, "START TRAFFIC\n");
454 return bnx2x_func_state_change(bp, &func_params);
455 }
456
457 static void bnx2x_dcbx_2cos_limit_update_ets_config(struct bnx2x *bp)
458 {
459 struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
460 int rc = 0;
461
462 if (ets->num_of_cos == 0 || ets->num_of_cos > DCBX_COS_MAX_NUM_E2) {
463 BNX2X_ERR("Illegal number of COSes %d\n", ets->num_of_cos);
464 return;
465 }
466
467 /* valid COS entries */
468 if (ets->num_of_cos == 1) /* no ETS */
469 return;
470
471 /* sanity */
472 if (((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[0].strict) &&
473 (DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) ||
474 ((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[1].strict) &&
475 (DCBX_INVALID_COS_BW == ets->cos_params[1].bw_tbl))) {
476 BNX2X_ERR("all COS should have at least bw_limit or strict"
477 "ets->cos_params[0].strict= %x"
478 "ets->cos_params[0].bw_tbl= %x"
479 "ets->cos_params[1].strict= %x"
480 "ets->cos_params[1].bw_tbl= %x",
481 ets->cos_params[0].strict,
482 ets->cos_params[0].bw_tbl,
483 ets->cos_params[1].strict,
484 ets->cos_params[1].bw_tbl);
485 return;
486 }
487 /* If we join a group and there is bw_tbl and strict then bw rules */
488 if ((DCBX_INVALID_COS_BW != ets->cos_params[0].bw_tbl) &&
489 (DCBX_INVALID_COS_BW != ets->cos_params[1].bw_tbl)) {
490 u32 bw_tbl_0 = ets->cos_params[0].bw_tbl;
491 u32 bw_tbl_1 = ets->cos_params[1].bw_tbl;
492 /* Do not allow 0-100 configuration
493 * since PBF does not support it
494 * force 1-99 instead
495 */
496 if (bw_tbl_0 == 0) {
497 bw_tbl_0 = 1;
498 bw_tbl_1 = 99;
499 } else if (bw_tbl_1 == 0) {
500 bw_tbl_1 = 1;
501 bw_tbl_0 = 99;
502 }
503
504 bnx2x_ets_bw_limit(&bp->link_params, bw_tbl_0, bw_tbl_1);
505 } else {
506 if (ets->cos_params[0].strict == BNX2X_DCBX_STRICT_COS_HIGHEST)
507 rc = bnx2x_ets_strict(&bp->link_params, 0);
508 else if (ets->cos_params[1].strict
509 == BNX2X_DCBX_STRICT_COS_HIGHEST)
510 rc = bnx2x_ets_strict(&bp->link_params, 1);
511 if (rc)
512 BNX2X_ERR("update_ets_params failed\n");
513 }
514 }
515
516 /*
517 * In E3B0 the configuration may have more than 2 COS.
518 */
519 static void bnx2x_dcbx_update_ets_config(struct bnx2x *bp)
520 {
521 struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
522 struct bnx2x_ets_params ets_params = { 0 };
523 u8 i;
524
525 ets_params.num_of_cos = ets->num_of_cos;
526
527 for (i = 0; i < ets->num_of_cos; i++) {
528 /* COS is SP */
529 if (ets->cos_params[i].strict != BNX2X_DCBX_STRICT_INVALID) {
530 if (ets->cos_params[i].bw_tbl != DCBX_INVALID_COS_BW) {
531 BNX2X_ERR("COS can't be not BW and not SP\n");
532 return;
533 }
534
535 ets_params.cos[i].state = bnx2x_cos_state_strict;
536 ets_params.cos[i].params.sp_params.pri =
537 ets->cos_params[i].strict;
538 } else { /* COS is BW */
539 if (ets->cos_params[i].bw_tbl == DCBX_INVALID_COS_BW) {
540 BNX2X_ERR("COS can't be not BW and not SP\n");
541 return;
542 }
543 ets_params.cos[i].state = bnx2x_cos_state_bw;
544 ets_params.cos[i].params.bw_params.bw =
545 (u8)ets->cos_params[i].bw_tbl;
546 }
547 }
548
549 /* Configure the ETS in HW */
550 if (bnx2x_ets_e3b0_config(&bp->link_params, &bp->link_vars,
551 &ets_params)) {
552 BNX2X_ERR("bnx2x_ets_e3b0_config failed\n");
553 bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
554 }
555 }
556
557 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp)
558 {
559 bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
560
561 if (!bp->dcbx_port_params.ets.enabled ||
562 (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
563 return;
564
565 if (CHIP_IS_E3B0(bp))
566 bnx2x_dcbx_update_ets_config(bp);
567 else
568 bnx2x_dcbx_2cos_limit_update_ets_config(bp);
569 }
570
571 #ifdef BCM_DCBNL
572 static int bnx2x_dcbx_read_shmem_remote_mib(struct bnx2x *bp)
573 {
574 struct lldp_remote_mib remote_mib = {0};
575 u32 dcbx_remote_mib_offset = SHMEM2_RD(bp, dcbx_remote_mib_offset);
576 int rc;
577
578 DP(BNX2X_MSG_DCB, "dcbx_remote_mib_offset 0x%x\n",
579 dcbx_remote_mib_offset);
580
581 if (SHMEM_DCBX_REMOTE_MIB_NONE == dcbx_remote_mib_offset) {
582 BNX2X_ERR("FW doesn't support dcbx_remote_mib_offset\n");
583 return -EINVAL;
584 }
585
586 rc = bnx2x_dcbx_read_mib(bp, (u32 *)&remote_mib, dcbx_remote_mib_offset,
587 DCBX_READ_REMOTE_MIB);
588
589 if (rc) {
590 BNX2X_ERR("Faild to read remote mib from FW\n");
591 return rc;
592 }
593
594 /* save features and flags */
595 bp->dcbx_remote_feat = remote_mib.features;
596 bp->dcbx_remote_flags = remote_mib.flags;
597 return 0;
598 }
599 #endif
600
601 static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp)
602 {
603 struct lldp_local_mib local_mib = {0};
604 u32 dcbx_neg_res_offset = SHMEM2_RD(bp, dcbx_neg_res_offset);
605 int rc;
606
607 DP(BNX2X_MSG_DCB, "dcbx_neg_res_offset 0x%x\n", dcbx_neg_res_offset);
608
609 if (SHMEM_DCBX_NEG_RES_NONE == dcbx_neg_res_offset) {
610 BNX2X_ERR("FW doesn't support dcbx_neg_res_offset\n");
611 return -EINVAL;
612 }
613
614 rc = bnx2x_dcbx_read_mib(bp, (u32 *)&local_mib, dcbx_neg_res_offset,
615 DCBX_READ_LOCAL_MIB);
616
617 if (rc) {
618 BNX2X_ERR("Faild to read local mib from FW\n");
619 return rc;
620 }
621
622 /* save features and error */
623 bp->dcbx_local_feat = local_mib.features;
624 bp->dcbx_error = local_mib.error;
625 return 0;
626 }
627
628
629 #ifdef BCM_DCBNL
630 static inline
631 u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent)
632 {
633 u8 pri;
634
635 /* Choose the highest priority */
636 for (pri = MAX_PFC_PRIORITIES - 1; pri > 0; pri--)
637 if (ent->pri_bitmap & (1 << pri))
638 break;
639 return pri;
640 }
641
642 static inline
643 u8 bnx2x_dcbx_dcbnl_app_idtype(struct dcbx_app_priority_entry *ent)
644 {
645 return ((ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) ==
646 DCBX_APP_SF_PORT) ? DCB_APP_IDTYPE_PORTNUM :
647 DCB_APP_IDTYPE_ETHTYPE;
648 }
649
650 int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall)
651 {
652 int i, err = 0;
653
654 for (i = 0; i < DCBX_MAX_APP_PROTOCOL && err == 0; i++) {
655 struct dcbx_app_priority_entry *ent =
656 &bp->dcbx_local_feat.app.app_pri_tbl[i];
657
658 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
659 u8 up = bnx2x_dcbx_dcbnl_app_up(ent);
660
661 /* avoid invalid user-priority */
662 if (up) {
663 struct dcb_app app;
664 app.selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
665 app.protocol = ent->app_id;
666 app.priority = delall ? 0 : up;
667 err = dcb_setapp(bp->dev, &app);
668 }
669 }
670 }
671 return err;
672 }
673 #endif
674
675 static inline void bnx2x_dcbx_update_tc_mapping(struct bnx2x *bp)
676 {
677 u8 prio, cos;
678 for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++) {
679 for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) {
680 if (bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask
681 & (1 << prio)) {
682 bp->prio_to_cos[prio] = cos;
683 DP(BNX2X_MSG_DCB,
684 "tx_mapping %d --> %d\n", prio, cos);
685 }
686 }
687 }
688
689 /* setup tc must be called under rtnl lock, but we can't take it here
690 * as we are handling an attetntion on a work queue which must be
691 * flushed at some rtnl-locked contexts (e.g. if down)
692 */
693 if (!test_and_set_bit(BNX2X_SP_RTNL_SETUP_TC, &bp->sp_rtnl_state))
694 schedule_delayed_work(&bp->sp_rtnl_task, 0);
695 }
696
697 void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
698 {
699 switch (state) {
700 case BNX2X_DCBX_STATE_NEG_RECEIVED:
701 {
702 DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_NEG_RECEIVED\n");
703 #ifdef BCM_DCBNL
704 /**
705 * Delete app tlvs from dcbnl before reading new
706 * negotiation results
707 */
708 bnx2x_dcbnl_update_applist(bp, true);
709
710 /* Read rmeote mib if dcbx is in the FW */
711 if (bnx2x_dcbx_read_shmem_remote_mib(bp))
712 return;
713 #endif
714 /* Read neg results if dcbx is in the FW */
715 if (bnx2x_dcbx_read_shmem_neg_results(bp))
716 return;
717
718 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
719 bp->dcbx_error);
720
721 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
722 bp->dcbx_error);
723
724 /* mark DCBX result for PMF migration */
725 bnx2x_update_drv_flags(bp,
726 1 << DRV_FLAGS_DCB_CONFIGURED,
727 1);
728 #ifdef BCM_DCBNL
729 /*
730 * Add new app tlvs to dcbnl
731 */
732 bnx2x_dcbnl_update_applist(bp, false);
733 #endif
734 /*
735 * reconfigure the netdevice with the results of the new
736 * dcbx negotiation.
737 */
738 bnx2x_dcbx_update_tc_mapping(bp);
739
740 /*
741 * allow other funtions to update their netdevices
742 * accordingly
743 */
744 if (IS_MF(bp))
745 bnx2x_link_sync_notify(bp);
746
747 bnx2x_dcbx_stop_hw_tx(bp);
748
749 return;
750 }
751 case BNX2X_DCBX_STATE_TX_PAUSED:
752 DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_PAUSED\n");
753 bnx2x_pfc_set_pfc(bp);
754
755 bnx2x_dcbx_update_ets_params(bp);
756 bnx2x_dcbx_resume_hw_tx(bp);
757
758 return;
759 case BNX2X_DCBX_STATE_TX_RELEASED:
760 DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_RELEASED\n");
761 bnx2x_fw_command(bp, DRV_MSG_CODE_DCBX_PMF_DRV_OK, 0);
762 #ifdef BCM_DCBNL
763 /*
764 * Send a notification for the new negotiated parameters
765 */
766 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
767 #endif
768 return;
769 default:
770 BNX2X_ERR("Unknown DCBX_STATE\n");
771 }
772 }
773
774 #define LLDP_ADMIN_MIB_OFFSET(bp) (PORT_MAX*sizeof(struct lldp_params) + \
775 BP_PORT(bp)*sizeof(struct lldp_admin_mib))
776
777 static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp,
778 u32 dcbx_lldp_params_offset)
779 {
780 struct lldp_admin_mib admin_mib;
781 u32 i, other_traf_type = PREDEFINED_APP_IDX_MAX, traf_type = 0;
782 u32 offset = dcbx_lldp_params_offset + LLDP_ADMIN_MIB_OFFSET(bp);
783
784 /*shortcuts*/
785 struct dcbx_features *af = &admin_mib.features;
786 struct bnx2x_config_dcbx_params *dp = &bp->dcbx_config_params;
787
788 memset(&admin_mib, 0, sizeof(struct lldp_admin_mib));
789
790 /* Read the data first */
791 bnx2x_read_data(bp, (u32 *)&admin_mib, offset,
792 sizeof(struct lldp_admin_mib));
793
794 if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON)
795 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
796 else
797 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
798
799 if (dp->overwrite_settings == BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE) {
800
801 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_CEE_VERSION_MASK);
802 admin_mib.ver_cfg_flags |=
803 (dp->admin_dcbx_version << DCBX_CEE_VERSION_SHIFT) &
804 DCBX_CEE_VERSION_MASK;
805
806 af->ets.enabled = (u8)dp->admin_ets_enable;
807
808 af->pfc.enabled = (u8)dp->admin_pfc_enable;
809
810 /* FOR IEEE dp->admin_tc_supported_tx_enable */
811 if (dp->admin_ets_configuration_tx_enable)
812 SET_FLAGS(admin_mib.ver_cfg_flags,
813 DCBX_ETS_CONFIG_TX_ENABLED);
814 else
815 RESET_FLAGS(admin_mib.ver_cfg_flags,
816 DCBX_ETS_CONFIG_TX_ENABLED);
817 /* For IEEE admin_ets_recommendation_tx_enable */
818 if (dp->admin_pfc_tx_enable)
819 SET_FLAGS(admin_mib.ver_cfg_flags,
820 DCBX_PFC_CONFIG_TX_ENABLED);
821 else
822 RESET_FLAGS(admin_mib.ver_cfg_flags,
823 DCBX_PFC_CONFIG_TX_ENABLED);
824
825 if (dp->admin_application_priority_tx_enable)
826 SET_FLAGS(admin_mib.ver_cfg_flags,
827 DCBX_APP_CONFIG_TX_ENABLED);
828 else
829 RESET_FLAGS(admin_mib.ver_cfg_flags,
830 DCBX_APP_CONFIG_TX_ENABLED);
831
832 if (dp->admin_ets_willing)
833 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
834 else
835 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
836 /* For IEEE admin_ets_reco_valid */
837 if (dp->admin_pfc_willing)
838 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
839 else
840 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
841
842 if (dp->admin_app_priority_willing)
843 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
844 else
845 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
846
847 for (i = 0 ; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) {
848 DCBX_PG_BW_SET(af->ets.pg_bw_tbl, i,
849 (u8)dp->admin_configuration_bw_precentage[i]);
850
851 DP(BNX2X_MSG_DCB, "pg_bw_tbl[%d] = %02x\n",
852 i, DCBX_PG_BW_GET(af->ets.pg_bw_tbl, i));
853 }
854
855 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
856 DCBX_PRI_PG_SET(af->ets.pri_pg_tbl, i,
857 (u8)dp->admin_configuration_ets_pg[i]);
858
859 DP(BNX2X_MSG_DCB, "pri_pg_tbl[%d] = %02x\n",
860 i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i));
861 }
862
863 /*For IEEE admin_recommendation_bw_precentage
864 *For IEEE admin_recommendation_ets_pg */
865 af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap;
866 for (i = 0; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
867 if (dp->admin_priority_app_table[i].valid) {
868 struct bnx2x_admin_priority_app_table *table =
869 dp->admin_priority_app_table;
870 if ((ETH_TYPE_FCOE == table[i].app_id) &&
871 (TRAFFIC_TYPE_ETH == table[i].traffic_type))
872 traf_type = FCOE_APP_IDX;
873 else if ((TCP_PORT_ISCSI == table[i].app_id) &&
874 (TRAFFIC_TYPE_PORT == table[i].traffic_type))
875 traf_type = ISCSI_APP_IDX;
876 else
877 traf_type = other_traf_type++;
878
879 af->app.app_pri_tbl[traf_type].app_id =
880 table[i].app_id;
881
882 af->app.app_pri_tbl[traf_type].pri_bitmap =
883 (u8)(1 << table[i].priority);
884
885 af->app.app_pri_tbl[traf_type].appBitfield =
886 (DCBX_APP_ENTRY_VALID);
887
888 af->app.app_pri_tbl[traf_type].appBitfield |=
889 (TRAFFIC_TYPE_ETH == table[i].traffic_type) ?
890 DCBX_APP_SF_ETH_TYPE : DCBX_APP_SF_PORT;
891 }
892 }
893
894 af->app.default_pri = (u8)dp->admin_default_priority;
895
896 }
897
898 /* Write the data. */
899 bnx2x_write_data(bp, (u32 *)&admin_mib, offset,
900 sizeof(struct lldp_admin_mib));
901
902 }
903
904 void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled)
905 {
906 if (!CHIP_IS_E1x(bp)) {
907 bp->dcb_state = dcb_on;
908 bp->dcbx_enabled = dcbx_enabled;
909 } else {
910 bp->dcb_state = false;
911 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_INVALID;
912 }
913 DP(BNX2X_MSG_DCB, "DCB state [%s:%s]\n",
914 dcb_on ? "ON" : "OFF",
915 dcbx_enabled == BNX2X_DCBX_ENABLED_OFF ? "user-mode" :
916 dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF ? "on-chip static" :
917 dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON ?
918 "on-chip with negotiation" : "invalid");
919 }
920
921 void bnx2x_dcbx_init_params(struct bnx2x *bp)
922 {
923 bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */
924 bp->dcbx_config_params.admin_ets_willing = 1;
925 bp->dcbx_config_params.admin_pfc_willing = 1;
926 bp->dcbx_config_params.overwrite_settings = 1;
927 bp->dcbx_config_params.admin_ets_enable = 1;
928 bp->dcbx_config_params.admin_pfc_enable = 1;
929 bp->dcbx_config_params.admin_tc_supported_tx_enable = 1;
930 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
931 bp->dcbx_config_params.admin_pfc_tx_enable = 1;
932 bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
933 bp->dcbx_config_params.admin_ets_reco_valid = 1;
934 bp->dcbx_config_params.admin_app_priority_willing = 1;
935 bp->dcbx_config_params.admin_configuration_bw_precentage[0] = 100;
936 bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 0;
937 bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 0;
938 bp->dcbx_config_params.admin_configuration_bw_precentage[3] = 0;
939 bp->dcbx_config_params.admin_configuration_bw_precentage[4] = 0;
940 bp->dcbx_config_params.admin_configuration_bw_precentage[5] = 0;
941 bp->dcbx_config_params.admin_configuration_bw_precentage[6] = 0;
942 bp->dcbx_config_params.admin_configuration_bw_precentage[7] = 0;
943 bp->dcbx_config_params.admin_configuration_ets_pg[0] = 0;
944 bp->dcbx_config_params.admin_configuration_ets_pg[1] = 0;
945 bp->dcbx_config_params.admin_configuration_ets_pg[2] = 0;
946 bp->dcbx_config_params.admin_configuration_ets_pg[3] = 0;
947 bp->dcbx_config_params.admin_configuration_ets_pg[4] = 0;
948 bp->dcbx_config_params.admin_configuration_ets_pg[5] = 0;
949 bp->dcbx_config_params.admin_configuration_ets_pg[6] = 0;
950 bp->dcbx_config_params.admin_configuration_ets_pg[7] = 0;
951 bp->dcbx_config_params.admin_recommendation_bw_precentage[0] = 100;
952 bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 0;
953 bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 0;
954 bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0;
955 bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 0;
956 bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 0;
957 bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 0;
958 bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 0;
959 bp->dcbx_config_params.admin_recommendation_ets_pg[0] = 0;
960 bp->dcbx_config_params.admin_recommendation_ets_pg[1] = 1;
961 bp->dcbx_config_params.admin_recommendation_ets_pg[2] = 2;
962 bp->dcbx_config_params.admin_recommendation_ets_pg[3] = 3;
963 bp->dcbx_config_params.admin_recommendation_ets_pg[4] = 4;
964 bp->dcbx_config_params.admin_recommendation_ets_pg[5] = 5;
965 bp->dcbx_config_params.admin_recommendation_ets_pg[6] = 6;
966 bp->dcbx_config_params.admin_recommendation_ets_pg[7] = 7;
967 bp->dcbx_config_params.admin_pfc_bitmap = 0x0;
968 bp->dcbx_config_params.admin_priority_app_table[0].valid = 0;
969 bp->dcbx_config_params.admin_priority_app_table[1].valid = 0;
970 bp->dcbx_config_params.admin_priority_app_table[2].valid = 0;
971 bp->dcbx_config_params.admin_priority_app_table[3].valid = 0;
972 bp->dcbx_config_params.admin_default_priority = 0;
973 }
974
975 void bnx2x_dcbx_init(struct bnx2x *bp)
976 {
977 u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE;
978
979 if (bp->dcbx_enabled <= 0)
980 return;
981
982 /* validate:
983 * chip of good for dcbx version,
984 * dcb is wanted
985 * the function is pmf
986 * shmem2 contains DCBX support fields
987 */
988 DP(BNX2X_MSG_DCB, "dcb_state %d bp->port.pmf %d\n",
989 bp->dcb_state, bp->port.pmf);
990
991 if (bp->dcb_state == BNX2X_DCB_STATE_ON && bp->port.pmf &&
992 SHMEM2_HAS(bp, dcbx_lldp_params_offset)) {
993 dcbx_lldp_params_offset =
994 SHMEM2_RD(bp, dcbx_lldp_params_offset);
995
996 DP(BNX2X_MSG_DCB, "dcbx_lldp_params_offset 0x%x\n",
997 dcbx_lldp_params_offset);
998
999 bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_DCB_CONFIGURED, 0);
1000
1001 if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
1002 bnx2x_dcbx_admin_mib_updated_params(bp,
1003 dcbx_lldp_params_offset);
1004
1005 /* Let HW start negotiation */
1006 bnx2x_fw_command(bp,
1007 DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0);
1008 }
1009 }
1010 }
1011 static void
1012 bnx2x_dcbx_print_cos_params(struct bnx2x *bp,
1013 struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1014 {
1015 u8 pri = 0;
1016 u8 cos = 0;
1017
1018 DP(BNX2X_MSG_DCB,
1019 "pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version);
1020 DP(BNX2X_MSG_DCB,
1021 "pdev->params.dcbx_port_params.pfc.priority_non_pauseable_mask %x\n",
1022 bp->dcbx_port_params.pfc.priority_non_pauseable_mask);
1023
1024 for (cos = 0 ; cos < bp->dcbx_port_params.ets.num_of_cos ; cos++) {
1025 DP(BNX2X_MSG_DCB,
1026 "pdev->params.dcbx_port_params.ets.cos_params[%d].pri_bitmask %x\n",
1027 cos, bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask);
1028
1029 DP(BNX2X_MSG_DCB,
1030 "pdev->params.dcbx_port_params.ets.cos_params[%d].bw_tbl %x\n",
1031 cos, bp->dcbx_port_params.ets.cos_params[cos].bw_tbl);
1032
1033 DP(BNX2X_MSG_DCB,
1034 "pdev->params.dcbx_port_params.ets.cos_params[%d].strict %x\n",
1035 cos, bp->dcbx_port_params.ets.cos_params[cos].strict);
1036
1037 DP(BNX2X_MSG_DCB,
1038 "pdev->params.dcbx_port_params.ets.cos_params[%d].pauseable %x\n",
1039 cos, bp->dcbx_port_params.ets.cos_params[cos].pauseable);
1040 }
1041
1042 for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1043 DP(BNX2X_MSG_DCB,
1044 "pfc_fw_cfg->traffic_type_to_priority_cos[%d].priority %x\n",
1045 pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority);
1046
1047 DP(BNX2X_MSG_DCB,
1048 "pfc_fw_cfg->traffic_type_to_priority_cos[%d].cos %x\n",
1049 pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].cos);
1050 }
1051 }
1052
1053 /* fills help_data according to pg_info */
1054 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
1055 u32 *pg_pri_orginal_spread,
1056 struct pg_help_data *help_data)
1057 {
1058 bool pg_found = false;
1059 u32 i, traf_type, add_traf_type, add_pg;
1060 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1061 struct pg_entry_help_data *data = help_data->data; /*shotcut*/
1062
1063 /* Set to invalid */
1064 for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
1065 data[i].pg = DCBX_ILLEGAL_PG;
1066
1067 for (add_traf_type = 0;
1068 add_traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; add_traf_type++) {
1069 pg_found = false;
1070 if (ttp[add_traf_type] < MAX_PFC_PRIORITIES) {
1071 add_pg = (u8)pg_pri_orginal_spread[ttp[add_traf_type]];
1072 for (traf_type = 0;
1073 traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1074 traf_type++) {
1075 if (data[traf_type].pg == add_pg) {
1076 if (!(data[traf_type].pg_priority &
1077 (1 << ttp[add_traf_type])))
1078 data[traf_type].
1079 num_of_dif_pri++;
1080 data[traf_type].pg_priority |=
1081 (1 << ttp[add_traf_type]);
1082 pg_found = true;
1083 break;
1084 }
1085 }
1086 if (false == pg_found) {
1087 data[help_data->num_of_pg].pg = add_pg;
1088 data[help_data->num_of_pg].pg_priority =
1089 (1 << ttp[add_traf_type]);
1090 data[help_data->num_of_pg].num_of_dif_pri = 1;
1091 help_data->num_of_pg++;
1092 }
1093 }
1094 DP(BNX2X_MSG_DCB,
1095 "add_traf_type %d pg_found %s num_of_pg %d\n",
1096 add_traf_type, (false == pg_found) ? "NO" : "YES",
1097 help_data->num_of_pg);
1098 }
1099 }
1100
1101 static void bnx2x_dcbx_ets_disabled_entry_data(struct bnx2x *bp,
1102 struct cos_help_data *cos_data,
1103 u32 pri_join_mask)
1104 {
1105 /* Only one priority than only one COS */
1106 cos_data->data[0].pausable =
1107 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1108 cos_data->data[0].pri_join_mask = pri_join_mask;
1109 cos_data->data[0].cos_bw = 100;
1110 cos_data->num_of_cos = 1;
1111 }
1112
1113 static inline void bnx2x_dcbx_add_to_cos_bw(struct bnx2x *bp,
1114 struct cos_entry_help_data *data,
1115 u8 pg_bw)
1116 {
1117 if (data->cos_bw == DCBX_INVALID_COS_BW)
1118 data->cos_bw = pg_bw;
1119 else
1120 data->cos_bw += pg_bw;
1121 }
1122
1123 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
1124 struct cos_help_data *cos_data,
1125 u32 *pg_pri_orginal_spread,
1126 struct dcbx_ets_feature *ets)
1127 {
1128 u32 pri_tested = 0;
1129 u8 i = 0;
1130 u8 entry = 0;
1131 u8 pg_entry = 0;
1132 u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1133
1134 cos_data->data[0].pausable = true;
1135 cos_data->data[1].pausable = false;
1136 cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1137
1138 for (i = 0 ; i < num_of_pri ; i++) {
1139 pri_tested = 1 << bp->dcbx_port_params.
1140 app.traffic_type_priority[i];
1141
1142 if (pri_tested & DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) {
1143 cos_data->data[1].pri_join_mask |= pri_tested;
1144 entry = 1;
1145 } else {
1146 cos_data->data[0].pri_join_mask |= pri_tested;
1147 entry = 0;
1148 }
1149 pg_entry = (u8)pg_pri_orginal_spread[bp->dcbx_port_params.
1150 app.traffic_type_priority[i]];
1151 /* There can be only one strict pg */
1152 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES)
1153 bnx2x_dcbx_add_to_cos_bw(bp, &cos_data->data[entry],
1154 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry));
1155 else
1156 /* If we join a group and one is strict
1157 * than the bw rulls */
1158 cos_data->data[entry].strict =
1159 BNX2X_DCBX_STRICT_COS_HIGHEST;
1160 }
1161 if ((0 == cos_data->data[0].pri_join_mask) &&
1162 (0 == cos_data->data[1].pri_join_mask))
1163 BNX2X_ERR("dcbx error: Both groups must have priorities\n");
1164 }
1165
1166
1167 #ifndef POWER_OF_2
1168 #define POWER_OF_2(x) ((0 != x) && (0 == (x & (x-1))))
1169 #endif
1170
1171 static void bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(struct bnx2x *bp,
1172 struct pg_help_data *pg_help_data,
1173 struct cos_help_data *cos_data,
1174 u32 pri_join_mask,
1175 u8 num_of_dif_pri)
1176 {
1177 u8 i = 0;
1178 u32 pri_tested = 0;
1179 u32 pri_mask_without_pri = 0;
1180 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1181 /*debug*/
1182 if (num_of_dif_pri == 1) {
1183 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, pri_join_mask);
1184 return;
1185 }
1186 /* single priority group */
1187 if (pg_help_data->data[0].pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1188 /* If there are both pauseable and non-pauseable priorities,
1189 * the pauseable priorities go to the first queue and
1190 * the non-pauseable priorities go to the second queue.
1191 */
1192 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1193 /* Pauseable */
1194 cos_data->data[0].pausable = true;
1195 /* Non pauseable.*/
1196 cos_data->data[1].pausable = false;
1197
1198 if (2 == num_of_dif_pri) {
1199 cos_data->data[0].cos_bw = 50;
1200 cos_data->data[1].cos_bw = 50;
1201 }
1202
1203 if (3 == num_of_dif_pri) {
1204 if (POWER_OF_2(DCBX_PFC_PRI_GET_PAUSE(bp,
1205 pri_join_mask))) {
1206 cos_data->data[0].cos_bw = 33;
1207 cos_data->data[1].cos_bw = 67;
1208 } else {
1209 cos_data->data[0].cos_bw = 67;
1210 cos_data->data[1].cos_bw = 33;
1211 }
1212 }
1213
1214 } else if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask)) {
1215 /* If there are only pauseable priorities,
1216 * then one/two priorities go to the first queue
1217 * and one priority goes to the second queue.
1218 */
1219 if (2 == num_of_dif_pri) {
1220 cos_data->data[0].cos_bw = 50;
1221 cos_data->data[1].cos_bw = 50;
1222 } else {
1223 cos_data->data[0].cos_bw = 67;
1224 cos_data->data[1].cos_bw = 33;
1225 }
1226 cos_data->data[1].pausable = true;
1227 cos_data->data[0].pausable = true;
1228 /* All priorities except FCOE */
1229 cos_data->data[0].pri_join_mask = (pri_join_mask &
1230 ((u8)~(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE])));
1231 /* Only FCOE priority.*/
1232 cos_data->data[1].pri_join_mask =
1233 (1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]);
1234 } else
1235 /* If there are only non-pauseable priorities,
1236 * they will all go to the same queue.
1237 */
1238 bnx2x_dcbx_ets_disabled_entry_data(bp,
1239 cos_data, pri_join_mask);
1240 } else {
1241 /* priority group which is not BW limited (PG#15):*/
1242 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1243 /* If there are both pauseable and non-pauseable
1244 * priorities, the pauseable priorities go to the first
1245 * queue and the non-pauseable priorities
1246 * go to the second queue.
1247 */
1248 if (DCBX_PFC_PRI_GET_PAUSE(bp, pri_join_mask) >
1249 DCBX_PFC_PRI_GET_NON_PAUSE(bp, pri_join_mask)) {
1250 cos_data->data[0].strict =
1251 BNX2X_DCBX_STRICT_COS_HIGHEST;
1252 cos_data->data[1].strict =
1253 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1254 BNX2X_DCBX_STRICT_COS_HIGHEST);
1255 } else {
1256 cos_data->data[0].strict =
1257 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1258 BNX2X_DCBX_STRICT_COS_HIGHEST);
1259 cos_data->data[1].strict =
1260 BNX2X_DCBX_STRICT_COS_HIGHEST;
1261 }
1262 /* Pauseable */
1263 cos_data->data[0].pausable = true;
1264 /* Non pause-able.*/
1265 cos_data->data[1].pausable = false;
1266 } else {
1267 /* If there are only pauseable priorities or
1268 * only non-pauseable,* the lower priorities go
1269 * to the first queue and the higherpriorities go
1270 * to the second queue.
1271 */
1272 cos_data->data[0].pausable =
1273 cos_data->data[1].pausable =
1274 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1275
1276 for (i = 0 ; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) {
1277 pri_tested = 1 << bp->dcbx_port_params.
1278 app.traffic_type_priority[i];
1279 /* Remove priority tested */
1280 pri_mask_without_pri =
1281 (pri_join_mask & ((u8)(~pri_tested)));
1282 if (pri_mask_without_pri < pri_tested)
1283 break;
1284 }
1285
1286 if (i == LLFC_DRIVER_TRAFFIC_TYPE_MAX)
1287 BNX2X_ERR("Invalid value for pri_join_mask - could not find a priority\n");
1288
1289 cos_data->data[0].pri_join_mask = pri_mask_without_pri;
1290 cos_data->data[1].pri_join_mask = pri_tested;
1291 /* Both queues are strict priority,
1292 * and that with the highest priority
1293 * gets the highest strict priority in the arbiter.
1294 */
1295 cos_data->data[0].strict =
1296 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1297 BNX2X_DCBX_STRICT_COS_HIGHEST);
1298 cos_data->data[1].strict =
1299 BNX2X_DCBX_STRICT_COS_HIGHEST;
1300 }
1301 }
1302 }
1303
1304 static void bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1305 struct bnx2x *bp,
1306 struct pg_help_data *pg_help_data,
1307 struct dcbx_ets_feature *ets,
1308 struct cos_help_data *cos_data,
1309 u32 *pg_pri_orginal_spread,
1310 u32 pri_join_mask,
1311 u8 num_of_dif_pri)
1312 {
1313 u8 i = 0;
1314 u8 pg[DCBX_COS_MAX_NUM_E2] = { 0 };
1315
1316 /* If there are both pauseable and non-pauseable priorities,
1317 * the pauseable priorities go to the first queue and
1318 * the non-pauseable priorities go to the second queue.
1319 */
1320 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1321 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1322 pg_help_data->data[0].pg_priority) ||
1323 IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1324 pg_help_data->data[1].pg_priority)) {
1325 /* If one PG contains both pauseable and
1326 * non-pauseable priorities then ETS is disabled.
1327 */
1328 bnx2x_dcbx_separate_pauseable_from_non(bp, cos_data,
1329 pg_pri_orginal_spread, ets);
1330 bp->dcbx_port_params.ets.enabled = false;
1331 return;
1332 }
1333
1334 /* Pauseable */
1335 cos_data->data[0].pausable = true;
1336 /* Non pauseable. */
1337 cos_data->data[1].pausable = false;
1338 if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp,
1339 pg_help_data->data[0].pg_priority)) {
1340 /* 0 is pauseable */
1341 cos_data->data[0].pri_join_mask =
1342 pg_help_data->data[0].pg_priority;
1343 pg[0] = pg_help_data->data[0].pg;
1344 cos_data->data[1].pri_join_mask =
1345 pg_help_data->data[1].pg_priority;
1346 pg[1] = pg_help_data->data[1].pg;
1347 } else {/* 1 is pauseable */
1348 cos_data->data[0].pri_join_mask =
1349 pg_help_data->data[1].pg_priority;
1350 pg[0] = pg_help_data->data[1].pg;
1351 cos_data->data[1].pri_join_mask =
1352 pg_help_data->data[0].pg_priority;
1353 pg[1] = pg_help_data->data[0].pg;
1354 }
1355 } else {
1356 /* If there are only pauseable priorities or
1357 * only non-pauseable, each PG goes to a queue.
1358 */
1359 cos_data->data[0].pausable = cos_data->data[1].pausable =
1360 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1361 cos_data->data[0].pri_join_mask =
1362 pg_help_data->data[0].pg_priority;
1363 pg[0] = pg_help_data->data[0].pg;
1364 cos_data->data[1].pri_join_mask =
1365 pg_help_data->data[1].pg_priority;
1366 pg[1] = pg_help_data->data[1].pg;
1367 }
1368
1369 /* There can be only one strict pg */
1370 for (i = 0 ; i < ARRAY_SIZE(pg); i++) {
1371 if (pg[i] < DCBX_MAX_NUM_PG_BW_ENTRIES)
1372 cos_data->data[i].cos_bw =
1373 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg[i]);
1374 else
1375 cos_data->data[i].strict =
1376 BNX2X_DCBX_STRICT_COS_HIGHEST;
1377 }
1378 }
1379
1380 static int bnx2x_dcbx_join_pgs(
1381 struct bnx2x *bp,
1382 struct dcbx_ets_feature *ets,
1383 struct pg_help_data *pg_help_data,
1384 u8 required_num_of_pg)
1385 {
1386 u8 entry_joined = pg_help_data->num_of_pg - 1;
1387 u8 entry_removed = entry_joined + 1;
1388 u8 pg_joined = 0;
1389
1390 if (required_num_of_pg == 0 || ARRAY_SIZE(pg_help_data->data)
1391 <= pg_help_data->num_of_pg) {
1392
1393 BNX2X_ERR("required_num_of_pg can't be zero\n");
1394 return -EINVAL;
1395 }
1396
1397 while (required_num_of_pg < pg_help_data->num_of_pg) {
1398 entry_joined = pg_help_data->num_of_pg - 2;
1399 entry_removed = entry_joined + 1;
1400 /* protect index */
1401 entry_removed %= ARRAY_SIZE(pg_help_data->data);
1402
1403 pg_help_data->data[entry_joined].pg_priority |=
1404 pg_help_data->data[entry_removed].pg_priority;
1405
1406 pg_help_data->data[entry_joined].num_of_dif_pri +=
1407 pg_help_data->data[entry_removed].num_of_dif_pri;
1408
1409 if (pg_help_data->data[entry_joined].pg == DCBX_STRICT_PRI_PG ||
1410 pg_help_data->data[entry_removed].pg == DCBX_STRICT_PRI_PG)
1411 /* Entries joined strict priority rules */
1412 pg_help_data->data[entry_joined].pg =
1413 DCBX_STRICT_PRI_PG;
1414 else {
1415 /* Entries can be joined join BW */
1416 pg_joined = DCBX_PG_BW_GET(ets->pg_bw_tbl,
1417 pg_help_data->data[entry_joined].pg) +
1418 DCBX_PG_BW_GET(ets->pg_bw_tbl,
1419 pg_help_data->data[entry_removed].pg);
1420
1421 DCBX_PG_BW_SET(ets->pg_bw_tbl,
1422 pg_help_data->data[entry_joined].pg, pg_joined);
1423 }
1424 /* Joined the entries */
1425 pg_help_data->num_of_pg--;
1426 }
1427
1428 return 0;
1429 }
1430
1431 static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1432 struct bnx2x *bp,
1433 struct pg_help_data *pg_help_data,
1434 struct dcbx_ets_feature *ets,
1435 struct cos_help_data *cos_data,
1436 u32 *pg_pri_orginal_spread,
1437 u32 pri_join_mask,
1438 u8 num_of_dif_pri)
1439 {
1440 u8 i = 0;
1441 u32 pri_tested = 0;
1442 u8 entry = 0;
1443 u8 pg_entry = 0;
1444 bool b_found_strict = false;
1445 u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1446
1447 cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1448 /* If there are both pauseable and non-pauseable priorities,
1449 * the pauseable priorities go to the first queue and the
1450 * non-pauseable priorities go to the second queue.
1451 */
1452 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask))
1453 bnx2x_dcbx_separate_pauseable_from_non(bp,
1454 cos_data, pg_pri_orginal_spread, ets);
1455 else {
1456 /* If two BW-limited PG-s were combined to one queue,
1457 * the BW is their sum.
1458 *
1459 * If there are only pauseable priorities or only non-pauseable,
1460 * and there are both BW-limited and non-BW-limited PG-s,
1461 * the BW-limited PG/s go to one queue and the non-BW-limited
1462 * PG/s go to the second queue.
1463 *
1464 * If there are only pauseable priorities or only non-pauseable
1465 * and all are BW limited, then two priorities go to the first
1466 * queue and one priority goes to the second queue.
1467 *
1468 * We will join this two cases:
1469 * if one is BW limited it will go to the secoend queue
1470 * otherwise the last priority will get it
1471 */
1472
1473 cos_data->data[0].pausable = cos_data->data[1].pausable =
1474 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1475
1476 for (i = 0 ; i < num_of_pri; i++) {
1477 pri_tested = 1 << bp->dcbx_port_params.
1478 app.traffic_type_priority[i];
1479 pg_entry = (u8)pg_pri_orginal_spread[bp->
1480 dcbx_port_params.app.traffic_type_priority[i]];
1481
1482 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1483 entry = 0;
1484
1485 if (i == (num_of_pri-1) &&
1486 false == b_found_strict)
1487 /* last entry will be handled separately
1488 * If no priority is strict than last
1489 * enty goes to last queue.*/
1490 entry = 1;
1491 cos_data->data[entry].pri_join_mask |=
1492 pri_tested;
1493 bnx2x_dcbx_add_to_cos_bw(bp,
1494 &cos_data->data[entry],
1495 DCBX_PG_BW_GET(ets->pg_bw_tbl,
1496 pg_entry));
1497 } else {
1498 b_found_strict = true;
1499 cos_data->data[1].pri_join_mask |= pri_tested;
1500 /* If we join a group and one is strict
1501 * than the bw rulls */
1502 cos_data->data[1].strict =
1503 BNX2X_DCBX_STRICT_COS_HIGHEST;
1504 }
1505 }
1506 }
1507 }
1508
1509
1510 static void bnx2x_dcbx_2cos_limit_cee_fill_cos_params(struct bnx2x *bp,
1511 struct pg_help_data *help_data,
1512 struct dcbx_ets_feature *ets,
1513 struct cos_help_data *cos_data,
1514 u32 *pg_pri_orginal_spread,
1515 u32 pri_join_mask,
1516 u8 num_of_dif_pri)
1517 {
1518
1519 /* default E2 settings */
1520 cos_data->num_of_cos = DCBX_COS_MAX_NUM_E2;
1521
1522 switch (help_data->num_of_pg) {
1523 case 1:
1524 bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(
1525 bp,
1526 help_data,
1527 cos_data,
1528 pri_join_mask,
1529 num_of_dif_pri);
1530 break;
1531 case 2:
1532 bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1533 bp,
1534 help_data,
1535 ets,
1536 cos_data,
1537 pg_pri_orginal_spread,
1538 pri_join_mask,
1539 num_of_dif_pri);
1540 break;
1541
1542 case 3:
1543 bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1544 bp,
1545 help_data,
1546 ets,
1547 cos_data,
1548 pg_pri_orginal_spread,
1549 pri_join_mask,
1550 num_of_dif_pri);
1551 break;
1552 default:
1553 BNX2X_ERR("Wrong pg_help_data.num_of_pg\n");
1554 bnx2x_dcbx_ets_disabled_entry_data(bp,
1555 cos_data, pri_join_mask);
1556 }
1557 }
1558
1559 static int bnx2x_dcbx_spread_strict_pri(struct bnx2x *bp,
1560 struct cos_help_data *cos_data,
1561 u8 entry,
1562 u8 num_spread_of_entries,
1563 u8 strict_app_pris)
1564 {
1565 u8 strict_pri = BNX2X_DCBX_STRICT_COS_HIGHEST;
1566 u8 num_of_app_pri = MAX_PFC_PRIORITIES;
1567 u8 app_pri_bit = 0;
1568
1569 while (num_spread_of_entries && num_of_app_pri > 0) {
1570 app_pri_bit = 1 << (num_of_app_pri - 1);
1571 if (app_pri_bit & strict_app_pris) {
1572 struct cos_entry_help_data *data = &cos_data->
1573 data[entry];
1574 num_spread_of_entries--;
1575 if (num_spread_of_entries == 0) {
1576 /* last entry needed put all the entries left */
1577 data->cos_bw = DCBX_INVALID_COS_BW;
1578 data->strict = strict_pri;
1579 data->pri_join_mask = strict_app_pris;
1580 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1581 data->pri_join_mask);
1582 } else {
1583 strict_app_pris &= ~app_pri_bit;
1584
1585 data->cos_bw = DCBX_INVALID_COS_BW;
1586 data->strict = strict_pri;
1587 data->pri_join_mask = app_pri_bit;
1588 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1589 data->pri_join_mask);
1590 }
1591
1592 strict_pri =
1593 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(strict_pri);
1594 entry++;
1595 }
1596
1597 num_of_app_pri--;
1598 }
1599
1600 if (num_spread_of_entries) {
1601 BNX2X_ERR("Didn't succeed to spread strict priorities\n");
1602 return -EINVAL;
1603 }
1604
1605 return 0;
1606 }
1607
1608 static u8 bnx2x_dcbx_cee_fill_strict_pri(struct bnx2x *bp,
1609 struct cos_help_data *cos_data,
1610 u8 entry,
1611 u8 num_spread_of_entries,
1612 u8 strict_app_pris)
1613 {
1614
1615 if (bnx2x_dcbx_spread_strict_pri(bp, cos_data, entry,
1616 num_spread_of_entries,
1617 strict_app_pris)) {
1618 struct cos_entry_help_data *data = &cos_data->
1619 data[entry];
1620 /* Fill BW entry */
1621 data->cos_bw = DCBX_INVALID_COS_BW;
1622 data->strict = BNX2X_DCBX_STRICT_COS_HIGHEST;
1623 data->pri_join_mask = strict_app_pris;
1624 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1625 data->pri_join_mask);
1626 return 1;
1627 }
1628
1629 return num_spread_of_entries;
1630 }
1631
1632 static void bnx2x_dcbx_cee_fill_cos_params(struct bnx2x *bp,
1633 struct pg_help_data *help_data,
1634 struct dcbx_ets_feature *ets,
1635 struct cos_help_data *cos_data,
1636 u32 pri_join_mask)
1637
1638 {
1639 u8 need_num_of_entries = 0;
1640 u8 i = 0;
1641 u8 entry = 0;
1642
1643 /*
1644 * if the number of requested PG-s in CEE is greater than 3
1645 * then the results are not determined since this is a violation
1646 * of the standard.
1647 */
1648 if (help_data->num_of_pg > DCBX_COS_MAX_NUM_E3B0) {
1649 if (bnx2x_dcbx_join_pgs(bp, ets, help_data,
1650 DCBX_COS_MAX_NUM_E3B0)) {
1651 BNX2X_ERR("Unable to reduce the number of PGs - we will disables ETS\n");
1652 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data,
1653 pri_join_mask);
1654 return;
1655 }
1656 }
1657
1658 for (i = 0 ; i < help_data->num_of_pg; i++) {
1659 struct pg_entry_help_data *pg = &help_data->data[i];
1660 if (pg->pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1661 struct cos_entry_help_data *data = &cos_data->
1662 data[entry];
1663 /* Fill BW entry */
1664 data->cos_bw = DCBX_PG_BW_GET(ets->pg_bw_tbl, pg->pg);
1665 data->strict = BNX2X_DCBX_STRICT_INVALID;
1666 data->pri_join_mask = pg->pg_priority;
1667 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1668 data->pri_join_mask);
1669
1670 entry++;
1671 } else {
1672 need_num_of_entries = min_t(u8,
1673 (u8)pg->num_of_dif_pri,
1674 (u8)DCBX_COS_MAX_NUM_E3B0 -
1675 help_data->num_of_pg + 1);
1676 /*
1677 * If there are still VOQ-s which have no associated PG,
1678 * then associate these VOQ-s to PG15. These PG-s will
1679 * be used for SP between priorities on PG15.
1680 */
1681 entry += bnx2x_dcbx_cee_fill_strict_pri(bp, cos_data,
1682 entry, need_num_of_entries, pg->pg_priority);
1683 }
1684 }
1685
1686 /* the entry will represent the number of COSes used */
1687 cos_data->num_of_cos = entry;
1688 }
1689 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
1690 struct pg_help_data *help_data,
1691 struct dcbx_ets_feature *ets,
1692 u32 *pg_pri_orginal_spread)
1693 {
1694 struct cos_help_data cos_data;
1695 u8 i = 0;
1696 u32 pri_join_mask = 0;
1697 u8 num_of_dif_pri = 0;
1698
1699 memset(&cos_data, 0, sizeof(cos_data));
1700
1701 /* Validate the pg value */
1702 for (i = 0; i < help_data->num_of_pg ; i++) {
1703 if (DCBX_STRICT_PRIORITY != help_data->data[i].pg &&
1704 DCBX_MAX_NUM_PG_BW_ENTRIES <= help_data->data[i].pg)
1705 BNX2X_ERR("Invalid pg[%d] data %x\n", i,
1706 help_data->data[i].pg);
1707 pri_join_mask |= help_data->data[i].pg_priority;
1708 num_of_dif_pri += help_data->data[i].num_of_dif_pri;
1709 }
1710
1711 /* defaults */
1712 cos_data.num_of_cos = 1;
1713 for (i = 0; i < ARRAY_SIZE(cos_data.data); i++) {
1714 cos_data.data[i].pri_join_mask = 0;
1715 cos_data.data[i].pausable = false;
1716 cos_data.data[i].strict = BNX2X_DCBX_STRICT_INVALID;
1717 cos_data.data[i].cos_bw = DCBX_INVALID_COS_BW;
1718 }
1719
1720 if (CHIP_IS_E3B0(bp))
1721 bnx2x_dcbx_cee_fill_cos_params(bp, help_data, ets,
1722 &cos_data, pri_join_mask);
1723 else /* E2 + E3A0 */
1724 bnx2x_dcbx_2cos_limit_cee_fill_cos_params(bp,
1725 help_data, ets,
1726 &cos_data,
1727 pg_pri_orginal_spread,
1728 pri_join_mask,
1729 num_of_dif_pri);
1730
1731 for (i = 0; i < cos_data.num_of_cos ; i++) {
1732 struct bnx2x_dcbx_cos_params *p =
1733 &bp->dcbx_port_params.ets.cos_params[i];
1734
1735 p->strict = cos_data.data[i].strict;
1736 p->bw_tbl = cos_data.data[i].cos_bw;
1737 p->pri_bitmask = cos_data.data[i].pri_join_mask;
1738 p->pauseable = cos_data.data[i].pausable;
1739
1740 /* sanity */
1741 if (p->bw_tbl != DCBX_INVALID_COS_BW ||
1742 p->strict != BNX2X_DCBX_STRICT_INVALID) {
1743 if (p->pri_bitmask == 0)
1744 BNX2X_ERR("Invalid pri_bitmask for %d\n", i);
1745
1746 if (CHIP_IS_E2(bp) || CHIP_IS_E3A0(bp)) {
1747
1748 if (p->pauseable &&
1749 DCBX_PFC_PRI_GET_NON_PAUSE(bp,
1750 p->pri_bitmask) != 0)
1751 BNX2X_ERR("Inconsistent config for pausable COS %d\n",
1752 i);
1753
1754 if (!p->pauseable &&
1755 DCBX_PFC_PRI_GET_PAUSE(bp,
1756 p->pri_bitmask) != 0)
1757 BNX2X_ERR("Inconsistent config for nonpausable COS %d\n",
1758 i);
1759 }
1760 }
1761
1762 if (p->pauseable)
1763 DP(BNX2X_MSG_DCB, "COS %d PAUSABLE prijoinmask 0x%x\n",
1764 i, cos_data.data[i].pri_join_mask);
1765 else
1766 DP(BNX2X_MSG_DCB,
1767 "COS %d NONPAUSABLE prijoinmask 0x%x\n",
1768 i, cos_data.data[i].pri_join_mask);
1769 }
1770
1771 bp->dcbx_port_params.ets.num_of_cos = cos_data.num_of_cos ;
1772 }
1773
1774 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
1775 u32 *set_configuration_ets_pg,
1776 u32 *pri_pg_tbl)
1777 {
1778 int i;
1779
1780 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
1781 set_configuration_ets_pg[i] = DCBX_PRI_PG_GET(pri_pg_tbl, i);
1782
1783 DP(BNX2X_MSG_DCB, "set_configuration_ets_pg[%d] = 0x%x\n",
1784 i, set_configuration_ets_pg[i]);
1785 }
1786 }
1787
1788 static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
1789 struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1790 {
1791 u16 pri_bit = 0;
1792 u8 cos = 0, pri = 0;
1793 struct priority_cos *tt2cos;
1794 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1795
1796 memset(pfc_fw_cfg, 0, sizeof(*pfc_fw_cfg));
1797
1798 /* to disable DCB - the structure must be zeroed */
1799 if (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR)
1800 return;
1801
1802 /*shortcut*/
1803 tt2cos = pfc_fw_cfg->traffic_type_to_priority_cos;
1804
1805 /* Fw version should be incremented each update */
1806 pfc_fw_cfg->dcb_version = ++bp->dcb_version;
1807 pfc_fw_cfg->dcb_enabled = 1;
1808
1809 /* Fill priority parameters */
1810 for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1811 tt2cos[pri].priority = ttp[pri];
1812 pri_bit = 1 << tt2cos[pri].priority;
1813
1814 /* Fill COS parameters based on COS calculated to
1815 * make it more general for future use */
1816 for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++)
1817 if (bp->dcbx_port_params.ets.cos_params[cos].
1818 pri_bitmask & pri_bit)
1819 tt2cos[pri].cos = cos;
1820 }
1821
1822 /* we never want the FW to add a 0 vlan tag */
1823 pfc_fw_cfg->dont_add_pri_0_en = 1;
1824
1825 bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg);
1826 }
1827
1828 void bnx2x_dcbx_pmf_update(struct bnx2x *bp)
1829 {
1830 /* if we need to syncronize DCBX result from prev PMF
1831 * read it from shmem and update bp and netdev accordingly
1832 */
1833 if (SHMEM2_HAS(bp, drv_flags) &&
1834 GET_FLAGS(SHMEM2_RD(bp, drv_flags), 1 << DRV_FLAGS_DCB_CONFIGURED)) {
1835 /* Read neg results if dcbx is in the FW */
1836 if (bnx2x_dcbx_read_shmem_neg_results(bp))
1837 return;
1838
1839 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1840 bp->dcbx_error);
1841 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1842 bp->dcbx_error);
1843 #ifdef BCM_DCBNL
1844 /*
1845 * Add new app tlvs to dcbnl
1846 */
1847 bnx2x_dcbnl_update_applist(bp, false);
1848 /*
1849 * Send a notification for the new negotiated parameters
1850 */
1851 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
1852 #endif
1853 /*
1854 * reconfigure the netdevice with the results of the new
1855 * dcbx negotiation.
1856 */
1857 bnx2x_dcbx_update_tc_mapping(bp);
1858
1859 }
1860 }
1861
1862 /* DCB netlink */
1863 #ifdef BCM_DCBNL
1864
1865 #define BNX2X_DCBX_CAPS (DCB_CAP_DCBX_LLD_MANAGED | \
1866 DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC)
1867
1868 static inline bool bnx2x_dcbnl_set_valid(struct bnx2x *bp)
1869 {
1870 /* validate dcbnl call that may change HW state:
1871 * DCB is on and DCBX mode was SUCCESSFULLY set by the user.
1872 */
1873 return bp->dcb_state && bp->dcbx_mode_uset;
1874 }
1875
1876 static u8 bnx2x_dcbnl_get_state(struct net_device *netdev)
1877 {
1878 struct bnx2x *bp = netdev_priv(netdev);
1879 DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcb_state);
1880 return bp->dcb_state;
1881 }
1882
1883 static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state)
1884 {
1885 struct bnx2x *bp = netdev_priv(netdev);
1886 DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");
1887
1888 bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled);
1889 return 0;
1890 }
1891
1892 static void bnx2x_dcbnl_get_perm_hw_addr(struct net_device *netdev,
1893 u8 *perm_addr)
1894 {
1895 struct bnx2x *bp = netdev_priv(netdev);
1896 DP(BNX2X_MSG_DCB, "GET-PERM-ADDR\n");
1897
1898 /* first the HW mac address */
1899 memcpy(perm_addr, netdev->dev_addr, netdev->addr_len);
1900
1901 #ifdef BCM_CNIC
1902 /* second SAN address */
1903 memcpy(perm_addr+netdev->addr_len, bp->fip_mac, netdev->addr_len);
1904 #endif
1905 }
1906
1907 static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio,
1908 u8 prio_type, u8 pgid, u8 bw_pct,
1909 u8 up_map)
1910 {
1911 struct bnx2x *bp = netdev_priv(netdev);
1912
1913 DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, pgid);
1914 if (!bnx2x_dcbnl_set_valid(bp) || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
1915 return;
1916
1917 /**
1918 * bw_pct ingnored - band-width percentage devision between user
1919 * priorities within the same group is not
1920 * standard and hence not supported
1921 *
1922 * prio_type igonred - priority levels within the same group are not
1923 * standard and hence are not supported. According
1924 * to the standard pgid 15 is dedicated to strict
1925 * prioirty traffic (on the port level).
1926 *
1927 * up_map ignored
1928 */
1929
1930 bp->dcbx_config_params.admin_configuration_ets_pg[prio] = pgid;
1931 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1932 }
1933
1934 static void bnx2x_dcbnl_set_pg_bwgcfg_tx(struct net_device *netdev,
1935 int pgid, u8 bw_pct)
1936 {
1937 struct bnx2x *bp = netdev_priv(netdev);
1938 DP(BNX2X_MSG_DCB, "pgid[%d] = %d\n", pgid, bw_pct);
1939
1940 if (!bnx2x_dcbnl_set_valid(bp) || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
1941 return;
1942
1943 bp->dcbx_config_params.admin_configuration_bw_precentage[pgid] = bw_pct;
1944 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1945 }
1946
1947 static void bnx2x_dcbnl_set_pg_tccfg_rx(struct net_device *netdev, int prio,
1948 u8 prio_type, u8 pgid, u8 bw_pct,
1949 u8 up_map)
1950 {
1951 struct bnx2x *bp = netdev_priv(netdev);
1952 DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n");
1953 }
1954
1955 static void bnx2x_dcbnl_set_pg_bwgcfg_rx(struct net_device *netdev,
1956 int pgid, u8 bw_pct)
1957 {
1958 struct bnx2x *bp = netdev_priv(netdev);
1959 DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n");
1960 }
1961
1962 static void bnx2x_dcbnl_get_pg_tccfg_tx(struct net_device *netdev, int prio,
1963 u8 *prio_type, u8 *pgid, u8 *bw_pct,
1964 u8 *up_map)
1965 {
1966 struct bnx2x *bp = netdev_priv(netdev);
1967 DP(BNX2X_MSG_DCB, "prio = %d\n", prio);
1968
1969 /**
1970 * bw_pct ingnored - band-width percentage devision between user
1971 * priorities within the same group is not
1972 * standard and hence not supported
1973 *
1974 * prio_type igonred - priority levels within the same group are not
1975 * standard and hence are not supported. According
1976 * to the standard pgid 15 is dedicated to strict
1977 * prioirty traffic (on the port level).
1978 *
1979 * up_map ignored
1980 */
1981 *up_map = *bw_pct = *prio_type = *pgid = 0;
1982
1983 if (!bp->dcb_state || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
1984 return;
1985
1986 *pgid = DCBX_PRI_PG_GET(bp->dcbx_local_feat.ets.pri_pg_tbl, prio);
1987 }
1988
1989 static void bnx2x_dcbnl_get_pg_bwgcfg_tx(struct net_device *netdev,
1990 int pgid, u8 *bw_pct)
1991 {
1992 struct bnx2x *bp = netdev_priv(netdev);
1993 DP(BNX2X_MSG_DCB, "pgid = %d\n", pgid);
1994
1995 *bw_pct = 0;
1996
1997 if (!bp->dcb_state || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
1998 return;
1999
2000 *bw_pct = DCBX_PG_BW_GET(bp->dcbx_local_feat.ets.pg_bw_tbl, pgid);
2001 }
2002
2003 static void bnx2x_dcbnl_get_pg_tccfg_rx(struct net_device *netdev, int prio,
2004 u8 *prio_type, u8 *pgid, u8 *bw_pct,
2005 u8 *up_map)
2006 {
2007 struct bnx2x *bp = netdev_priv(netdev);
2008 DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n");
2009
2010 *prio_type = *pgid = *bw_pct = *up_map = 0;
2011 }
2012
2013 static void bnx2x_dcbnl_get_pg_bwgcfg_rx(struct net_device *netdev,
2014 int pgid, u8 *bw_pct)
2015 {
2016 struct bnx2x *bp = netdev_priv(netdev);
2017 DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n");
2018
2019 *bw_pct = 0;
2020 }
2021
2022 static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio,
2023 u8 setting)
2024 {
2025 struct bnx2x *bp = netdev_priv(netdev);
2026 DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, setting);
2027
2028 if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES)
2029 return;
2030
2031 bp->dcbx_config_params.admin_pfc_bitmap |= ((setting ? 1 : 0) << prio);
2032
2033 if (setting)
2034 bp->dcbx_config_params.admin_pfc_tx_enable = 1;
2035 }
2036
2037 static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio,
2038 u8 *setting)
2039 {
2040 struct bnx2x *bp = netdev_priv(netdev);
2041 DP(BNX2X_MSG_DCB, "prio = %d\n", prio);
2042
2043 *setting = 0;
2044
2045 if (!bp->dcb_state || prio >= MAX_PFC_PRIORITIES)
2046 return;
2047
2048 *setting = (bp->dcbx_local_feat.pfc.pri_en_bitmap >> prio) & 0x1;
2049 }
2050
2051 static u8 bnx2x_dcbnl_set_all(struct net_device *netdev)
2052 {
2053 struct bnx2x *bp = netdev_priv(netdev);
2054 int rc = 0;
2055
2056 DP(BNX2X_MSG_DCB, "SET-ALL\n");
2057
2058 if (!bnx2x_dcbnl_set_valid(bp))
2059 return 1;
2060
2061 if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
2062 netdev_err(bp->dev,
2063 "Handling parity error recovery. Try again later\n");
2064 return 1;
2065 }
2066 if (netif_running(bp->dev)) {
2067 bnx2x_nic_unload(bp, UNLOAD_NORMAL);
2068 rc = bnx2x_nic_load(bp, LOAD_NORMAL);
2069 }
2070 DP(BNX2X_MSG_DCB, "set_dcbx_params done (%d)\n", rc);
2071 if (rc)
2072 return 1;
2073
2074 return 0;
2075 }
2076
2077 static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap)
2078 {
2079 struct bnx2x *bp = netdev_priv(netdev);
2080 u8 rval = 0;
2081
2082 if (bp->dcb_state) {
2083 switch (capid) {
2084 case DCB_CAP_ATTR_PG:
2085 *cap = true;
2086 break;
2087 case DCB_CAP_ATTR_PFC:
2088 *cap = true;
2089 break;
2090 case DCB_CAP_ATTR_UP2TC:
2091 *cap = false;
2092 break;
2093 case DCB_CAP_ATTR_PG_TCS:
2094 *cap = 0x80; /* 8 priorities for PGs */
2095 break;
2096 case DCB_CAP_ATTR_PFC_TCS:
2097 *cap = 0x80; /* 8 priorities for PFC */
2098 break;
2099 case DCB_CAP_ATTR_GSP:
2100 *cap = true;
2101 break;
2102 case DCB_CAP_ATTR_BCN:
2103 *cap = false;
2104 break;
2105 case DCB_CAP_ATTR_DCBX:
2106 *cap = BNX2X_DCBX_CAPS;
2107 break;
2108 default:
2109 BNX2X_ERR("Non valid capability ID\n");
2110 rval = -EINVAL;
2111 break;
2112 }
2113 } else {
2114 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2115 rval = -EINVAL;
2116 }
2117
2118 DP(BNX2X_MSG_DCB, "capid %d:%x\n", capid, *cap);
2119 return rval;
2120 }
2121
2122 static int bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num)
2123 {
2124 struct bnx2x *bp = netdev_priv(netdev);
2125 u8 rval = 0;
2126
2127 DP(BNX2X_MSG_DCB, "tcid %d\n", tcid);
2128
2129 if (bp->dcb_state) {
2130 switch (tcid) {
2131 case DCB_NUMTCS_ATTR_PG:
2132 *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2133 DCBX_COS_MAX_NUM_E2;
2134 break;
2135 case DCB_NUMTCS_ATTR_PFC:
2136 *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2137 DCBX_COS_MAX_NUM_E2;
2138 break;
2139 default:
2140 BNX2X_ERR("Non valid TC-ID\n");
2141 rval = -EINVAL;
2142 break;
2143 }
2144 } else {
2145 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2146 rval = -EINVAL;
2147 }
2148
2149 return rval;
2150 }
2151
2152 static int bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num)
2153 {
2154 struct bnx2x *bp = netdev_priv(netdev);
2155 DP(BNX2X_MSG_DCB, "num tcs = %d; Not supported\n", num);
2156 return -EINVAL;
2157 }
2158
2159 static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev)
2160 {
2161 struct bnx2x *bp = netdev_priv(netdev);
2162 DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcbx_local_feat.pfc.enabled);
2163
2164 if (!bp->dcb_state)
2165 return 0;
2166
2167 return bp->dcbx_local_feat.pfc.enabled;
2168 }
2169
2170 static void bnx2x_dcbnl_set_pfc_state(struct net_device *netdev, u8 state)
2171 {
2172 struct bnx2x *bp = netdev_priv(netdev);
2173 DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");
2174
2175 if (!bnx2x_dcbnl_set_valid(bp))
2176 return;
2177
2178 bp->dcbx_config_params.admin_pfc_tx_enable =
2179 bp->dcbx_config_params.admin_pfc_enable = (state ? 1 : 0);
2180 }
2181
2182 static void bnx2x_admin_app_set_ent(
2183 struct bnx2x_admin_priority_app_table *app_ent,
2184 u8 idtype, u16 idval, u8 up)
2185 {
2186 app_ent->valid = 1;
2187
2188 switch (idtype) {
2189 case DCB_APP_IDTYPE_ETHTYPE:
2190 app_ent->traffic_type = TRAFFIC_TYPE_ETH;
2191 break;
2192 case DCB_APP_IDTYPE_PORTNUM:
2193 app_ent->traffic_type = TRAFFIC_TYPE_PORT;
2194 break;
2195 default:
2196 break; /* never gets here */
2197 }
2198 app_ent->app_id = idval;
2199 app_ent->priority = up;
2200 }
2201
2202 static bool bnx2x_admin_app_is_equal(
2203 struct bnx2x_admin_priority_app_table *app_ent,
2204 u8 idtype, u16 idval)
2205 {
2206 if (!app_ent->valid)
2207 return false;
2208
2209 switch (idtype) {
2210 case DCB_APP_IDTYPE_ETHTYPE:
2211 if (app_ent->traffic_type != TRAFFIC_TYPE_ETH)
2212 return false;
2213 break;
2214 case DCB_APP_IDTYPE_PORTNUM:
2215 if (app_ent->traffic_type != TRAFFIC_TYPE_PORT)
2216 return false;
2217 break;
2218 default:
2219 return false;
2220 }
2221 if (app_ent->app_id != idval)
2222 return false;
2223
2224 return true;
2225 }
2226
2227 static int bnx2x_set_admin_app_up(struct bnx2x *bp, u8 idtype, u16 idval, u8 up)
2228 {
2229 int i, ff;
2230
2231 /* iterate over the app entries looking for idtype and idval */
2232 for (i = 0, ff = -1; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
2233 struct bnx2x_admin_priority_app_table *app_ent =
2234 &bp->dcbx_config_params.admin_priority_app_table[i];
2235 if (bnx2x_admin_app_is_equal(app_ent, idtype, idval))
2236 break;
2237
2238 if (ff < 0 && !app_ent->valid)
2239 ff = i;
2240 }
2241 if (i < DCBX_CONFIG_MAX_APP_PROTOCOL)
2242 /* if found overwrite up */
2243 bp->dcbx_config_params.
2244 admin_priority_app_table[i].priority = up;
2245 else if (ff >= 0)
2246 /* not found use first-free */
2247 bnx2x_admin_app_set_ent(
2248 &bp->dcbx_config_params.admin_priority_app_table[ff],
2249 idtype, idval, up);
2250 else {
2251 /* app table is full */
2252 BNX2X_ERR("Application table is too large\n");
2253 return -EBUSY;
2254 }
2255
2256 /* up configured, if not 0 make sure feature is enabled */
2257 if (up)
2258 bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
2259
2260 return 0;
2261 }
2262
2263 static u8 bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype,
2264 u16 idval, u8 up)
2265 {
2266 struct bnx2x *bp = netdev_priv(netdev);
2267
2268 DP(BNX2X_MSG_DCB, "app_type %d, app_id %x, prio bitmap %d\n",
2269 idtype, idval, up);
2270
2271 if (!bnx2x_dcbnl_set_valid(bp)) {
2272 DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
2273 return -EINVAL;
2274 }
2275
2276 /* verify idtype */
2277 switch (idtype) {
2278 case DCB_APP_IDTYPE_ETHTYPE:
2279 case DCB_APP_IDTYPE_PORTNUM:
2280 break;
2281 default:
2282 DP(BNX2X_MSG_DCB, "Wrong ID type\n");
2283 return -EINVAL;
2284 }
2285 return bnx2x_set_admin_app_up(bp, idtype, idval, up);
2286 }
2287
2288 static u8 bnx2x_dcbnl_get_dcbx(struct net_device *netdev)
2289 {
2290 struct bnx2x *bp = netdev_priv(netdev);
2291 u8 state;
2292
2293 state = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE;
2294
2295 if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF)
2296 state |= DCB_CAP_DCBX_STATIC;
2297
2298 return state;
2299 }
2300
2301 static u8 bnx2x_dcbnl_set_dcbx(struct net_device *netdev, u8 state)
2302 {
2303 struct bnx2x *bp = netdev_priv(netdev);
2304 DP(BNX2X_MSG_DCB, "state = %02x\n", state);
2305
2306 /* set dcbx mode */
2307
2308 if ((state & BNX2X_DCBX_CAPS) != state) {
2309 BNX2X_ERR("Requested DCBX mode %x is beyond advertised capabilities\n",
2310 state);
2311 return 1;
2312 }
2313
2314 if (bp->dcb_state != BNX2X_DCB_STATE_ON) {
2315 BNX2X_ERR("DCB turned off, DCBX configuration is invalid\n");
2316 return 1;
2317 }
2318
2319 if (state & DCB_CAP_DCBX_STATIC)
2320 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_OFF;
2321 else
2322 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_ON;
2323
2324 bp->dcbx_mode_uset = true;
2325 return 0;
2326 }
2327
2328 static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid,
2329 u8 *flags)
2330 {
2331 struct bnx2x *bp = netdev_priv(netdev);
2332 u8 rval = 0;
2333
2334 DP(BNX2X_MSG_DCB, "featid %d\n", featid);
2335
2336 if (bp->dcb_state) {
2337 *flags = 0;
2338 switch (featid) {
2339 case DCB_FEATCFG_ATTR_PG:
2340 if (bp->dcbx_local_feat.ets.enabled)
2341 *flags |= DCB_FEATCFG_ENABLE;
2342 if (bp->dcbx_error & DCBX_LOCAL_ETS_ERROR)
2343 *flags |= DCB_FEATCFG_ERROR;
2344 break;
2345 case DCB_FEATCFG_ATTR_PFC:
2346 if (bp->dcbx_local_feat.pfc.enabled)
2347 *flags |= DCB_FEATCFG_ENABLE;
2348 if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR |
2349 DCBX_LOCAL_PFC_MISMATCH))
2350 *flags |= DCB_FEATCFG_ERROR;
2351 break;
2352 case DCB_FEATCFG_ATTR_APP:
2353 if (bp->dcbx_local_feat.app.enabled)
2354 *flags |= DCB_FEATCFG_ENABLE;
2355 if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR |
2356 DCBX_LOCAL_APP_MISMATCH))
2357 *flags |= DCB_FEATCFG_ERROR;
2358 break;
2359 default:
2360 BNX2X_ERR("Non valid featrue-ID\n");
2361 rval = -EINVAL;
2362 break;
2363 }
2364 } else {
2365 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2366 rval = -EINVAL;
2367 }
2368
2369 return rval;
2370 }
2371
2372 static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid,
2373 u8 flags)
2374 {
2375 struct bnx2x *bp = netdev_priv(netdev);
2376 u8 rval = 0;
2377
2378 DP(BNX2X_MSG_DCB, "featid = %d flags = %02x\n", featid, flags);
2379
2380 /* ignore the 'advertise' flag */
2381 if (bnx2x_dcbnl_set_valid(bp)) {
2382 switch (featid) {
2383 case DCB_FEATCFG_ATTR_PG:
2384 bp->dcbx_config_params.admin_ets_enable =
2385 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2386 bp->dcbx_config_params.admin_ets_willing =
2387 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2388 break;
2389 case DCB_FEATCFG_ATTR_PFC:
2390 bp->dcbx_config_params.admin_pfc_enable =
2391 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2392 bp->dcbx_config_params.admin_pfc_willing =
2393 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2394 break;
2395 case DCB_FEATCFG_ATTR_APP:
2396 /* ignore enable, always enabled */
2397 bp->dcbx_config_params.admin_app_priority_willing =
2398 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2399 break;
2400 default:
2401 BNX2X_ERR("Non valid featrue-ID\n");
2402 rval = -EINVAL;
2403 break;
2404 }
2405 } else {
2406 DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
2407 rval = -EINVAL;
2408 }
2409
2410 return rval;
2411 }
2412
2413 static int bnx2x_peer_appinfo(struct net_device *netdev,
2414 struct dcb_peer_app_info *info, u16* app_count)
2415 {
2416 int i;
2417 struct bnx2x *bp = netdev_priv(netdev);
2418
2419 DP(BNX2X_MSG_DCB, "APP-INFO\n");
2420
2421 info->willing = (bp->dcbx_remote_flags & DCBX_APP_REM_WILLING) ?: 0;
2422 info->error = (bp->dcbx_remote_flags & DCBX_APP_RX_ERROR) ?: 0;
2423 *app_count = 0;
2424
2425 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++)
2426 if (bp->dcbx_remote_feat.app.app_pri_tbl[i].appBitfield &
2427 DCBX_APP_ENTRY_VALID)
2428 (*app_count)++;
2429 return 0;
2430 }
2431
2432 static int bnx2x_peer_apptable(struct net_device *netdev,
2433 struct dcb_app *table)
2434 {
2435 int i, j;
2436 struct bnx2x *bp = netdev_priv(netdev);
2437
2438 DP(BNX2X_MSG_DCB, "APP-TABLE\n");
2439
2440 for (i = 0, j = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
2441 struct dcbx_app_priority_entry *ent =
2442 &bp->dcbx_remote_feat.app.app_pri_tbl[i];
2443
2444 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
2445 table[j].selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
2446 table[j].priority = bnx2x_dcbx_dcbnl_app_up(ent);
2447 table[j++].protocol = ent->app_id;
2448 }
2449 }
2450 return 0;
2451 }
2452
2453 static int bnx2x_cee_peer_getpg(struct net_device *netdev, struct cee_pg *pg)
2454 {
2455 int i;
2456 struct bnx2x *bp = netdev_priv(netdev);
2457
2458 pg->willing = (bp->dcbx_remote_flags & DCBX_ETS_REM_WILLING) ?: 0;
2459
2460 for (i = 0; i < CEE_DCBX_MAX_PGS; i++) {
2461 pg->pg_bw[i] =
2462 DCBX_PG_BW_GET(bp->dcbx_remote_feat.ets.pg_bw_tbl, i);
2463 pg->prio_pg[i] =
2464 DCBX_PRI_PG_GET(bp->dcbx_remote_feat.ets.pri_pg_tbl, i);
2465 }
2466 return 0;
2467 }
2468
2469 static int bnx2x_cee_peer_getpfc(struct net_device *netdev,
2470 struct cee_pfc *pfc)
2471 {
2472 struct bnx2x *bp = netdev_priv(netdev);
2473 pfc->tcs_supported = bp->dcbx_remote_feat.pfc.pfc_caps;
2474 pfc->pfc_en = bp->dcbx_remote_feat.pfc.pri_en_bitmap;
2475 return 0;
2476 }
2477
2478 const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = {
2479 .getstate = bnx2x_dcbnl_get_state,
2480 .setstate = bnx2x_dcbnl_set_state,
2481 .getpermhwaddr = bnx2x_dcbnl_get_perm_hw_addr,
2482 .setpgtccfgtx = bnx2x_dcbnl_set_pg_tccfg_tx,
2483 .setpgbwgcfgtx = bnx2x_dcbnl_set_pg_bwgcfg_tx,
2484 .setpgtccfgrx = bnx2x_dcbnl_set_pg_tccfg_rx,
2485 .setpgbwgcfgrx = bnx2x_dcbnl_set_pg_bwgcfg_rx,
2486 .getpgtccfgtx = bnx2x_dcbnl_get_pg_tccfg_tx,
2487 .getpgbwgcfgtx = bnx2x_dcbnl_get_pg_bwgcfg_tx,
2488 .getpgtccfgrx = bnx2x_dcbnl_get_pg_tccfg_rx,
2489 .getpgbwgcfgrx = bnx2x_dcbnl_get_pg_bwgcfg_rx,
2490 .setpfccfg = bnx2x_dcbnl_set_pfc_cfg,
2491 .getpfccfg = bnx2x_dcbnl_get_pfc_cfg,
2492 .setall = bnx2x_dcbnl_set_all,
2493 .getcap = bnx2x_dcbnl_get_cap,
2494 .getnumtcs = bnx2x_dcbnl_get_numtcs,
2495 .setnumtcs = bnx2x_dcbnl_set_numtcs,
2496 .getpfcstate = bnx2x_dcbnl_get_pfc_state,
2497 .setpfcstate = bnx2x_dcbnl_set_pfc_state,
2498 .setapp = bnx2x_dcbnl_set_app_up,
2499 .getdcbx = bnx2x_dcbnl_get_dcbx,
2500 .setdcbx = bnx2x_dcbnl_set_dcbx,
2501 .getfeatcfg = bnx2x_dcbnl_get_featcfg,
2502 .setfeatcfg = bnx2x_dcbnl_set_featcfg,
2503 .peer_getappinfo = bnx2x_peer_appinfo,
2504 .peer_getapptable = bnx2x_peer_apptable,
2505 .cee_peer_getpg = bnx2x_cee_peer_getpg,
2506 .cee_peer_getpfc = bnx2x_cee_peer_getpfc,
2507 };
2508
2509 #endif /* BCM_DCBNL */
Linux with added FPC-III support