1 /* bnx2x_dcb.c: Broadcom Everest network driver.
3 * Copyright 2009-2013 Broadcom Corporation
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").
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
15 * Maintained by: Eilon Greenstein <eilong@broadcom.com>
16 * Written by: Dmitry Kravkov
20 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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>
29 #include "bnx2x_cmn.h"
30 #include "bnx2x_dcb.h"
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,
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*);
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,
59 for (i = 0; i < len; i += 4, buff++)
60 *buff = REG_RD(bp, addr + i);
63 static void bnx2x_write_data(struct bnx2x *bp, u32 *buff,
67 for (i = 0; i < len; i += 4, buff++)
68 REG_WR(bp, addr + i, *buff);
71 static void bnx2x_pfc_set(struct bnx2x *bp)
73 struct bnx2x_nig_brb_pfc_port_params pfc_params = {0};
77 pfc_params.num_of_rx_cos_priority_mask =
78 bp->dcbx_port_params.ets.num_of_cos;
80 /* Tx COS configuration */
81 for (i = 0; i < bp->dcbx_port_params.ets.num_of_cos; i++)
83 * We configure only the pauseable bits (non pauseable aren't
84 * configured at all) it's done to avoid false pauses from
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);
92 * Rx COS configuration
93 * Changing PFC RX configuration .
94 * In RX COS0 will always be configured to lossless and COS1 to lossy
96 for (i = 0 ; i < MAX_PFC_PRIORITIES ; i++) {
99 if (!(pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp)))
103 pfc_params.pkt_priority_to_cos = val;
106 pfc_params.llfc_low_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp);
108 pfc_params.llfc_high_priority_classes = 0;
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);
116 static void bnx2x_pfc_clear(struct bnx2x *bp)
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);
126 static void bnx2x_dump_dcbx_drv_param(struct bnx2x *bp,
127 struct dcbx_features *features,
131 DP(NETIF_MSG_LINK, "local_mib.error %x\n", error);
135 "local_mib.features.ets.enabled %x\n", features->ets.enabled);
136 for (i = 0; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++)
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++)
142 "local_mib.features.ets.pri_pg_tbl[%d] %d\n", i,
143 DCBX_PRI_PG_GET(features->ets.pri_pg_tbl, i));
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);
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++) {
161 "dcbx_features.app.app_pri_tbl[%x].app_id %x\n",
162 i, features->app.app_pri_tbl[i].app_id);
164 "dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n",
165 i, features->app.app_pri_tbl[i].pri_bitmap);
167 "dcbx_features.app.app_pri_tbl[%x].appBitfield %x\n",
168 i, features->app.app_pri_tbl[i].appBitfield);
172 static void bnx2x_dcbx_get_ap_priority(struct bnx2x *bp,
176 u32 pri = MAX_PFC_PRIORITIES;
177 u32 index = MAX_PFC_PRIORITIES - 1;
179 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
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))
189 if (pri < MAX_PFC_PRIORITIES)
190 ttp[llfc_traf_type] = max_t(u32, ttp[llfc_traf_type], pri);
193 static void bnx2x_dcbx_get_ap_feature(struct bnx2x *bp,
194 struct dcbx_app_priority_feature *app,
197 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
199 if (GET_FLAGS(error, DCBX_LOCAL_APP_ERROR))
200 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_ERROR\n");
202 if (GET_FLAGS(error, DCBX_LOCAL_APP_MISMATCH))
203 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_MISMATCH\n");
205 if (GET_FLAGS(error, DCBX_REMOTE_APP_TLV_NOT_FOUND))
206 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_APP_TLV_NOT_FOUND\n");
208 !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR | DCBX_LOCAL_APP_MISMATCH |
209 DCBX_REMOTE_APP_TLV_NOT_FOUND)) {
211 bp->dcbx_port_params.app.enabled = true;
213 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
216 if (app->default_pri < MAX_PFC_PRIORITIES)
217 ttp[LLFC_TRAFFIC_TYPE_NW] = app->default_pri;
219 for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) {
220 struct dcbx_app_priority_entry *entry =
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);
230 if (GET_FLAGS(entry[index].appBitfield,
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);
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;
245 static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp,
246 struct dcbx_ets_feature *ets,
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;
254 memset(&pg_help_data, 0, sizeof(struct pg_help_data));
256 if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR))
257 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ERROR\n");
259 if (GET_FLAGS(error, DCBX_REMOTE_ETS_TLV_NOT_FOUND))
260 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_ETS_TLV_NOT_FOUND\n");
262 /* Clean up old settings of ets on COS */
263 for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params) ; i++) {
264 cos_params[i].pauseable = false;
265 cos_params[i].strict = BNX2X_DCBX_STRICT_INVALID;
266 cos_params[i].bw_tbl = DCBX_INVALID_COS_BW;
267 cos_params[i].pri_bitmask = 0;
270 if (bp->dcbx_port_params.app.enabled && ets->enabled &&
272 DCBX_LOCAL_ETS_ERROR | DCBX_REMOTE_ETS_TLV_NOT_FOUND)) {
273 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ENABLE\n");
274 bp->dcbx_port_params.ets.enabled = true;
276 bnx2x_dcbx_get_ets_pri_pg_tbl(bp,
277 pg_pri_orginal_spread,
280 bnx2x_dcbx_get_num_pg_traf_type(bp,
281 pg_pri_orginal_spread,
284 bnx2x_dcbx_fill_cos_params(bp, &pg_help_data,
285 ets, pg_pri_orginal_spread);
288 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_DISABLED\n");
289 bp->dcbx_port_params.ets.enabled = false;
290 ets->pri_pg_tbl[0] = 0;
292 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES ; i++)
293 DCBX_PG_BW_SET(ets->pg_bw_tbl, i, 1);
297 static void bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp,
298 struct dcbx_pfc_feature *pfc, u32 error)
300 if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR))
301 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_ERROR\n");
303 if (GET_FLAGS(error, DCBX_REMOTE_PFC_TLV_NOT_FOUND))
304 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_PFC_TLV_NOT_FOUND\n");
305 if (bp->dcbx_port_params.app.enabled && pfc->enabled &&
306 !GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR | DCBX_LOCAL_PFC_MISMATCH |
307 DCBX_REMOTE_PFC_TLV_NOT_FOUND)) {
308 bp->dcbx_port_params.pfc.enabled = true;
309 bp->dcbx_port_params.pfc.priority_non_pauseable_mask =
310 ~(pfc->pri_en_bitmap);
312 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_DISABLED\n");
313 bp->dcbx_port_params.pfc.enabled = false;
314 bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 0;
318 /* maps unmapped priorities to to the same COS as L2 */
319 static void bnx2x_dcbx_map_nw(struct bnx2x *bp)
322 u32 unmapped = (1 << MAX_PFC_PRIORITIES) - 1; /* all ones */
323 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
324 u32 nw_prio = 1 << ttp[LLFC_TRAFFIC_TYPE_NW];
325 struct bnx2x_dcbx_cos_params *cos_params =
326 bp->dcbx_port_params.ets.cos_params;
328 /* get unmapped priorities by clearing mapped bits */
329 for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
330 unmapped &= ~(1 << ttp[i]);
332 /* find cos for nw prio and extend it with unmapped */
333 for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params); i++) {
334 if (cos_params[i].pri_bitmask & nw_prio) {
335 /* extend the bitmask with unmapped */
337 "cos %d extended with 0x%08x\n", i, unmapped);
338 cos_params[i].pri_bitmask |= unmapped;
344 static void bnx2x_get_dcbx_drv_param(struct bnx2x *bp,
345 struct dcbx_features *features,
348 bnx2x_dcbx_get_ap_feature(bp, &features->app, error);
350 bnx2x_dcbx_get_pfc_feature(bp, &features->pfc, error);
352 bnx2x_dcbx_get_ets_feature(bp, &features->ets, error);
354 bnx2x_dcbx_map_nw(bp);
357 #define DCBX_LOCAL_MIB_MAX_TRY_READ (100)
358 static int bnx2x_dcbx_read_mib(struct bnx2x *bp,
363 int max_try_read = 0;
364 u32 mib_size, prefix_seq_num, suffix_seq_num;
365 struct lldp_remote_mib *remote_mib ;
366 struct lldp_local_mib *local_mib;
368 switch (read_mib_type) {
369 case DCBX_READ_LOCAL_MIB:
370 mib_size = sizeof(struct lldp_local_mib);
372 case DCBX_READ_REMOTE_MIB:
373 mib_size = sizeof(struct lldp_remote_mib);
379 offset += BP_PORT(bp) * mib_size;
382 bnx2x_read_data(bp, base_mib_addr, offset, mib_size);
386 switch (read_mib_type) {
387 case DCBX_READ_LOCAL_MIB:
388 local_mib = (struct lldp_local_mib *) base_mib_addr;
389 prefix_seq_num = local_mib->prefix_seq_num;
390 suffix_seq_num = local_mib->suffix_seq_num;
392 case DCBX_READ_REMOTE_MIB:
393 remote_mib = (struct lldp_remote_mib *) base_mib_addr;
394 prefix_seq_num = remote_mib->prefix_seq_num;
395 suffix_seq_num = remote_mib->suffix_seq_num;
400 } while ((prefix_seq_num != suffix_seq_num) &&
401 (max_try_read < DCBX_LOCAL_MIB_MAX_TRY_READ));
403 if (max_try_read >= DCBX_LOCAL_MIB_MAX_TRY_READ) {
404 BNX2X_ERR("MIB could not be read\n");
411 static void bnx2x_pfc_set_pfc(struct bnx2x *bp)
413 int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
414 GET_FLAGS(SHMEM2_RD(bp, drv_flags),
415 1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
417 if (bp->dcbx_port_params.pfc.enabled &&
418 (!(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) || mfw_configured))
420 * 1. Fills up common PFC structures if required
421 * 2. Configure NIG, MAC and BRB via the elink
428 static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
430 struct bnx2x_func_state_params func_params = {NULL};
432 func_params.f_obj = &bp->func_obj;
433 func_params.cmd = BNX2X_F_CMD_TX_STOP;
435 DP(BNX2X_MSG_DCB, "STOP TRAFFIC\n");
436 return bnx2x_func_state_change(bp, &func_params);
439 static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
441 struct bnx2x_func_state_params func_params = {NULL};
442 struct bnx2x_func_tx_start_params *tx_params =
443 &func_params.params.tx_start;
445 func_params.f_obj = &bp->func_obj;
446 func_params.cmd = BNX2X_F_CMD_TX_START;
448 bnx2x_dcbx_fw_struct(bp, tx_params);
450 DP(BNX2X_MSG_DCB, "START TRAFFIC\n");
451 return bnx2x_func_state_change(bp, &func_params);
454 static void bnx2x_dcbx_2cos_limit_update_ets_config(struct bnx2x *bp)
456 struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
459 if (ets->num_of_cos == 0 || ets->num_of_cos > DCBX_COS_MAX_NUM_E2) {
460 BNX2X_ERR("Illegal number of COSes %d\n", ets->num_of_cos);
464 /* valid COS entries */
465 if (ets->num_of_cos == 1) /* no ETS */
469 if (((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[0].strict) &&
470 (DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) ||
471 ((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[1].strict) &&
472 (DCBX_INVALID_COS_BW == ets->cos_params[1].bw_tbl))) {
473 BNX2X_ERR("all COS should have at least bw_limit or strict"
474 "ets->cos_params[0].strict= %x"
475 "ets->cos_params[0].bw_tbl= %x"
476 "ets->cos_params[1].strict= %x"
477 "ets->cos_params[1].bw_tbl= %x",
478 ets->cos_params[0].strict,
479 ets->cos_params[0].bw_tbl,
480 ets->cos_params[1].strict,
481 ets->cos_params[1].bw_tbl);
484 /* If we join a group and there is bw_tbl and strict then bw rules */
485 if ((DCBX_INVALID_COS_BW != ets->cos_params[0].bw_tbl) &&
486 (DCBX_INVALID_COS_BW != ets->cos_params[1].bw_tbl)) {
487 u32 bw_tbl_0 = ets->cos_params[0].bw_tbl;
488 u32 bw_tbl_1 = ets->cos_params[1].bw_tbl;
489 /* Do not allow 0-100 configuration
490 * since PBF does not support it
496 } else if (bw_tbl_1 == 0) {
501 bnx2x_ets_bw_limit(&bp->link_params, bw_tbl_0, bw_tbl_1);
503 if (ets->cos_params[0].strict == BNX2X_DCBX_STRICT_COS_HIGHEST)
504 rc = bnx2x_ets_strict(&bp->link_params, 0);
505 else if (ets->cos_params[1].strict
506 == BNX2X_DCBX_STRICT_COS_HIGHEST)
507 rc = bnx2x_ets_strict(&bp->link_params, 1);
509 BNX2X_ERR("update_ets_params failed\n");
514 * In E3B0 the configuration may have more than 2 COS.
516 static void bnx2x_dcbx_update_ets_config(struct bnx2x *bp)
518 struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
519 struct bnx2x_ets_params ets_params = { 0 };
522 ets_params.num_of_cos = ets->num_of_cos;
524 for (i = 0; i < ets->num_of_cos; i++) {
526 if (ets->cos_params[i].strict != BNX2X_DCBX_STRICT_INVALID) {
527 if (ets->cos_params[i].bw_tbl != DCBX_INVALID_COS_BW) {
528 BNX2X_ERR("COS can't be not BW and not SP\n");
532 ets_params.cos[i].state = bnx2x_cos_state_strict;
533 ets_params.cos[i].params.sp_params.pri =
534 ets->cos_params[i].strict;
535 } else { /* COS is BW */
536 if (ets->cos_params[i].bw_tbl == DCBX_INVALID_COS_BW) {
537 BNX2X_ERR("COS can't be not BW and not SP\n");
540 ets_params.cos[i].state = bnx2x_cos_state_bw;
541 ets_params.cos[i].params.bw_params.bw =
542 (u8)ets->cos_params[i].bw_tbl;
546 /* Configure the ETS in HW */
547 if (bnx2x_ets_e3b0_config(&bp->link_params, &bp->link_vars,
549 BNX2X_ERR("bnx2x_ets_e3b0_config failed\n");
550 bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
554 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp)
556 int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
557 GET_FLAGS(SHMEM2_RD(bp, drv_flags),
558 1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
560 bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
562 if (!bp->dcbx_port_params.ets.enabled ||
563 ((bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) && !mfw_configured))
566 if (CHIP_IS_E3B0(bp))
567 bnx2x_dcbx_update_ets_config(bp);
569 bnx2x_dcbx_2cos_limit_update_ets_config(bp);
573 static int bnx2x_dcbx_read_shmem_remote_mib(struct bnx2x *bp)
575 struct lldp_remote_mib remote_mib = {0};
576 u32 dcbx_remote_mib_offset = SHMEM2_RD(bp, dcbx_remote_mib_offset);
579 DP(BNX2X_MSG_DCB, "dcbx_remote_mib_offset 0x%x\n",
580 dcbx_remote_mib_offset);
582 if (SHMEM_DCBX_REMOTE_MIB_NONE == dcbx_remote_mib_offset) {
583 BNX2X_ERR("FW doesn't support dcbx_remote_mib_offset\n");
587 rc = bnx2x_dcbx_read_mib(bp, (u32 *)&remote_mib, dcbx_remote_mib_offset,
588 DCBX_READ_REMOTE_MIB);
591 BNX2X_ERR("Failed to read remote mib from FW\n");
595 /* save features and flags */
596 bp->dcbx_remote_feat = remote_mib.features;
597 bp->dcbx_remote_flags = remote_mib.flags;
602 static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp)
604 struct lldp_local_mib local_mib = {0};
605 u32 dcbx_neg_res_offset = SHMEM2_RD(bp, dcbx_neg_res_offset);
608 DP(BNX2X_MSG_DCB, "dcbx_neg_res_offset 0x%x\n", dcbx_neg_res_offset);
610 if (SHMEM_DCBX_NEG_RES_NONE == dcbx_neg_res_offset) {
611 BNX2X_ERR("FW doesn't support dcbx_neg_res_offset\n");
615 rc = bnx2x_dcbx_read_mib(bp, (u32 *)&local_mib, dcbx_neg_res_offset,
616 DCBX_READ_LOCAL_MIB);
619 BNX2X_ERR("Failed to read local mib from FW\n");
623 /* save features and error */
624 bp->dcbx_local_feat = local_mib.features;
625 bp->dcbx_error = local_mib.error;
631 u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent)
635 /* Choose the highest priority */
636 for (pri = MAX_PFC_PRIORITIES - 1; pri > 0; pri--)
637 if (ent->pri_bitmap & (1 << pri))
643 u8 bnx2x_dcbx_dcbnl_app_idtype(struct dcbx_app_priority_entry *ent)
645 return ((ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) ==
646 DCBX_APP_SF_PORT) ? DCB_APP_IDTYPE_PORTNUM :
647 DCB_APP_IDTYPE_ETHTYPE;
650 int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall)
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];
658 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
659 u8 up = bnx2x_dcbx_dcbnl_app_up(ent);
661 /* avoid invalid user-priority */
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);
675 static inline void bnx2x_dcbx_update_tc_mapping(struct bnx2x *bp)
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
682 bp->prio_to_cos[prio] = cos;
684 "tx_mapping %d --> %d\n", prio, cos);
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)
693 if (!test_and_set_bit(BNX2X_SP_RTNL_SETUP_TC, &bp->sp_rtnl_state))
694 schedule_delayed_work(&bp->sp_rtnl_task, 0);
697 void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
700 case BNX2X_DCBX_STATE_NEG_RECEIVED:
702 DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_NEG_RECEIVED\n");
705 * Delete app tlvs from dcbnl before reading new
706 * negotiation results
708 bnx2x_dcbnl_update_applist(bp, true);
710 /* Read rmeote mib if dcbx is in the FW */
711 if (bnx2x_dcbx_read_shmem_remote_mib(bp))
714 /* Read neg results if dcbx is in the FW */
715 if (bnx2x_dcbx_read_shmem_neg_results(bp))
718 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
721 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
724 /* mark DCBX result for PMF migration */
725 bnx2x_update_drv_flags(bp,
726 1 << DRV_FLAGS_DCB_CONFIGURED,
730 * Add new app tlvs to dcbnl
732 bnx2x_dcbnl_update_applist(bp, false);
735 * reconfigure the netdevice with the results of the new
738 bnx2x_dcbx_update_tc_mapping(bp);
741 * allow other funtions to update their netdevices
745 bnx2x_link_sync_notify(bp);
747 bnx2x_dcbx_stop_hw_tx(bp);
751 case BNX2X_DCBX_STATE_TX_PAUSED:
752 DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_PAUSED\n");
753 bnx2x_pfc_set_pfc(bp);
755 bnx2x_dcbx_update_ets_params(bp);
756 bnx2x_dcbx_resume_hw_tx(bp);
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);
764 * Send a notification for the new negotiated parameters
766 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
770 BNX2X_ERR("Unknown DCBX_STATE\n");
774 #define LLDP_ADMIN_MIB_OFFSET(bp) (PORT_MAX*sizeof(struct lldp_params) + \
775 BP_PORT(bp)*sizeof(struct lldp_admin_mib))
777 static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp,
778 u32 dcbx_lldp_params_offset)
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);
785 struct dcbx_features *af = &admin_mib.features;
786 struct bnx2x_config_dcbx_params *dp = &bp->dcbx_config_params;
788 memset(&admin_mib, 0, sizeof(struct lldp_admin_mib));
790 /* Read the data first */
791 bnx2x_read_data(bp, (u32 *)&admin_mib, offset,
792 sizeof(struct lldp_admin_mib));
794 if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON)
795 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
797 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
799 if (dp->overwrite_settings == BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE) {
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;
806 af->ets.enabled = (u8)dp->admin_ets_enable;
808 af->pfc.enabled = (u8)dp->admin_pfc_enable;
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);
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);
822 RESET_FLAGS(admin_mib.ver_cfg_flags,
823 DCBX_PFC_CONFIG_TX_ENABLED);
825 if (dp->admin_application_priority_tx_enable)
826 SET_FLAGS(admin_mib.ver_cfg_flags,
827 DCBX_APP_CONFIG_TX_ENABLED);
829 RESET_FLAGS(admin_mib.ver_cfg_flags,
830 DCBX_APP_CONFIG_TX_ENABLED);
832 if (dp->admin_ets_willing)
833 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
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);
840 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
842 if (dp->admin_app_priority_willing)
843 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
845 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
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]);
851 DP(BNX2X_MSG_DCB, "pg_bw_tbl[%d] = %02x\n",
852 i, DCBX_PG_BW_GET(af->ets.pg_bw_tbl, i));
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]);
859 DP(BNX2X_MSG_DCB, "pri_pg_tbl[%d] = %02x\n",
860 i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i));
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;
877 traf_type = other_traf_type++;
879 af->app.app_pri_tbl[traf_type].app_id =
882 af->app.app_pri_tbl[traf_type].pri_bitmap =
883 (u8)(1 << table[i].priority);
885 af->app.app_pri_tbl[traf_type].appBitfield =
886 (DCBX_APP_ENTRY_VALID);
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;
894 af->app.default_pri = (u8)dp->admin_default_priority;
897 /* Write the data. */
898 bnx2x_write_data(bp, (u32 *)&admin_mib, offset,
899 sizeof(struct lldp_admin_mib));
902 void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled)
904 if (!CHIP_IS_E1x(bp)) {
905 bp->dcb_state = dcb_on;
906 bp->dcbx_enabled = dcbx_enabled;
908 bp->dcb_state = false;
909 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_INVALID;
911 DP(BNX2X_MSG_DCB, "DCB state [%s:%s]\n",
912 dcb_on ? "ON" : "OFF",
913 dcbx_enabled == BNX2X_DCBX_ENABLED_OFF ? "user-mode" :
914 dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF ? "on-chip static" :
915 dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON ?
916 "on-chip with negotiation" : "invalid");
919 void bnx2x_dcbx_init_params(struct bnx2x *bp)
921 bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */
922 bp->dcbx_config_params.admin_ets_willing = 1;
923 bp->dcbx_config_params.admin_pfc_willing = 1;
924 bp->dcbx_config_params.overwrite_settings = 1;
925 bp->dcbx_config_params.admin_ets_enable = 1;
926 bp->dcbx_config_params.admin_pfc_enable = 1;
927 bp->dcbx_config_params.admin_tc_supported_tx_enable = 1;
928 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
929 bp->dcbx_config_params.admin_pfc_tx_enable = 1;
930 bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
931 bp->dcbx_config_params.admin_ets_reco_valid = 1;
932 bp->dcbx_config_params.admin_app_priority_willing = 1;
933 bp->dcbx_config_params.admin_configuration_bw_precentage[0] = 100;
934 bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 0;
935 bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 0;
936 bp->dcbx_config_params.admin_configuration_bw_precentage[3] = 0;
937 bp->dcbx_config_params.admin_configuration_bw_precentage[4] = 0;
938 bp->dcbx_config_params.admin_configuration_bw_precentage[5] = 0;
939 bp->dcbx_config_params.admin_configuration_bw_precentage[6] = 0;
940 bp->dcbx_config_params.admin_configuration_bw_precentage[7] = 0;
941 bp->dcbx_config_params.admin_configuration_ets_pg[0] = 0;
942 bp->dcbx_config_params.admin_configuration_ets_pg[1] = 0;
943 bp->dcbx_config_params.admin_configuration_ets_pg[2] = 0;
944 bp->dcbx_config_params.admin_configuration_ets_pg[3] = 0;
945 bp->dcbx_config_params.admin_configuration_ets_pg[4] = 0;
946 bp->dcbx_config_params.admin_configuration_ets_pg[5] = 0;
947 bp->dcbx_config_params.admin_configuration_ets_pg[6] = 0;
948 bp->dcbx_config_params.admin_configuration_ets_pg[7] = 0;
949 bp->dcbx_config_params.admin_recommendation_bw_precentage[0] = 100;
950 bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 0;
951 bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 0;
952 bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0;
953 bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 0;
954 bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 0;
955 bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 0;
956 bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 0;
957 bp->dcbx_config_params.admin_recommendation_ets_pg[0] = 0;
958 bp->dcbx_config_params.admin_recommendation_ets_pg[1] = 1;
959 bp->dcbx_config_params.admin_recommendation_ets_pg[2] = 2;
960 bp->dcbx_config_params.admin_recommendation_ets_pg[3] = 3;
961 bp->dcbx_config_params.admin_recommendation_ets_pg[4] = 4;
962 bp->dcbx_config_params.admin_recommendation_ets_pg[5] = 5;
963 bp->dcbx_config_params.admin_recommendation_ets_pg[6] = 6;
964 bp->dcbx_config_params.admin_recommendation_ets_pg[7] = 7;
965 bp->dcbx_config_params.admin_pfc_bitmap = 0x0;
966 bp->dcbx_config_params.admin_priority_app_table[0].valid = 0;
967 bp->dcbx_config_params.admin_priority_app_table[1].valid = 0;
968 bp->dcbx_config_params.admin_priority_app_table[2].valid = 0;
969 bp->dcbx_config_params.admin_priority_app_table[3].valid = 0;
970 bp->dcbx_config_params.admin_default_priority = 0;
973 void bnx2x_dcbx_init(struct bnx2x *bp, bool update_shmem)
975 u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE;
977 /* only PMF can send ADMIN msg to MFW in old MFW versions */
978 if ((!bp->port.pmf) && (!(bp->flags & BC_SUPPORTS_DCBX_MSG_NON_PMF)))
981 if (bp->dcbx_enabled <= 0)
985 * chip of good for dcbx version,
987 * shmem2 contains DCBX support fields
989 DP(BNX2X_MSG_DCB, "dcb_state %d bp->port.pmf %d\n",
990 bp->dcb_state, bp->port.pmf);
992 if (bp->dcb_state == BNX2X_DCB_STATE_ON &&
993 SHMEM2_HAS(bp, dcbx_lldp_params_offset)) {
994 dcbx_lldp_params_offset =
995 SHMEM2_RD(bp, dcbx_lldp_params_offset);
997 DP(BNX2X_MSG_DCB, "dcbx_lldp_params_offset 0x%x\n",
998 dcbx_lldp_params_offset);
1000 bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_DCB_CONFIGURED, 0);
1002 if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
1003 /* need HW lock to avoid scenario of two drivers
1004 * writing in parallel to shmem
1006 bnx2x_acquire_hw_lock(bp,
1007 HW_LOCK_RESOURCE_DCBX_ADMIN_MIB);
1009 bnx2x_dcbx_admin_mib_updated_params(bp,
1010 dcbx_lldp_params_offset);
1012 /* Let HW start negotiation */
1013 bnx2x_fw_command(bp,
1014 DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0);
1015 /* release HW lock only after MFW acks that it finished
1016 * reading values from shmem
1018 bnx2x_release_hw_lock(bp,
1019 HW_LOCK_RESOURCE_DCBX_ADMIN_MIB);
1024 bnx2x_dcbx_print_cos_params(struct bnx2x *bp,
1025 struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1031 "pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version);
1033 "pdev->params.dcbx_port_params.pfc.priority_non_pauseable_mask %x\n",
1034 bp->dcbx_port_params.pfc.priority_non_pauseable_mask);
1036 for (cos = 0 ; cos < bp->dcbx_port_params.ets.num_of_cos ; cos++) {
1038 "pdev->params.dcbx_port_params.ets.cos_params[%d].pri_bitmask %x\n",
1039 cos, bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask);
1042 "pdev->params.dcbx_port_params.ets.cos_params[%d].bw_tbl %x\n",
1043 cos, bp->dcbx_port_params.ets.cos_params[cos].bw_tbl);
1046 "pdev->params.dcbx_port_params.ets.cos_params[%d].strict %x\n",
1047 cos, bp->dcbx_port_params.ets.cos_params[cos].strict);
1050 "pdev->params.dcbx_port_params.ets.cos_params[%d].pauseable %x\n",
1051 cos, bp->dcbx_port_params.ets.cos_params[cos].pauseable);
1054 for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1056 "pfc_fw_cfg->traffic_type_to_priority_cos[%d].priority %x\n",
1057 pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority);
1060 "pfc_fw_cfg->traffic_type_to_priority_cos[%d].cos %x\n",
1061 pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].cos);
1065 /* fills help_data according to pg_info */
1066 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
1067 u32 *pg_pri_orginal_spread,
1068 struct pg_help_data *help_data)
1070 bool pg_found = false;
1071 u32 i, traf_type, add_traf_type, add_pg;
1072 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1073 struct pg_entry_help_data *data = help_data->data; /*shotcut*/
1075 /* Set to invalid */
1076 for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
1077 data[i].pg = DCBX_ILLEGAL_PG;
1079 for (add_traf_type = 0;
1080 add_traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; add_traf_type++) {
1082 if (ttp[add_traf_type] < MAX_PFC_PRIORITIES) {
1083 add_pg = (u8)pg_pri_orginal_spread[ttp[add_traf_type]];
1085 traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1087 if (data[traf_type].pg == add_pg) {
1088 if (!(data[traf_type].pg_priority &
1089 (1 << ttp[add_traf_type])))
1092 data[traf_type].pg_priority |=
1093 (1 << ttp[add_traf_type]);
1098 if (false == pg_found) {
1099 data[help_data->num_of_pg].pg = add_pg;
1100 data[help_data->num_of_pg].pg_priority =
1101 (1 << ttp[add_traf_type]);
1102 data[help_data->num_of_pg].num_of_dif_pri = 1;
1103 help_data->num_of_pg++;
1107 "add_traf_type %d pg_found %s num_of_pg %d\n",
1108 add_traf_type, (false == pg_found) ? "NO" : "YES",
1109 help_data->num_of_pg);
1113 static void bnx2x_dcbx_ets_disabled_entry_data(struct bnx2x *bp,
1114 struct cos_help_data *cos_data,
1117 /* Only one priority than only one COS */
1118 cos_data->data[0].pausable =
1119 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1120 cos_data->data[0].pri_join_mask = pri_join_mask;
1121 cos_data->data[0].cos_bw = 100;
1122 cos_data->num_of_cos = 1;
1125 static inline void bnx2x_dcbx_add_to_cos_bw(struct bnx2x *bp,
1126 struct cos_entry_help_data *data,
1129 if (data->cos_bw == DCBX_INVALID_COS_BW)
1130 data->cos_bw = pg_bw;
1132 data->cos_bw += pg_bw;
1135 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
1136 struct cos_help_data *cos_data,
1137 u32 *pg_pri_orginal_spread,
1138 struct dcbx_ets_feature *ets)
1144 u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1146 cos_data->data[0].pausable = true;
1147 cos_data->data[1].pausable = false;
1148 cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1150 for (i = 0 ; i < num_of_pri ; i++) {
1151 pri_tested = 1 << bp->dcbx_port_params.
1152 app.traffic_type_priority[i];
1154 if (pri_tested & DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) {
1155 cos_data->data[1].pri_join_mask |= pri_tested;
1158 cos_data->data[0].pri_join_mask |= pri_tested;
1161 pg_entry = (u8)pg_pri_orginal_spread[bp->dcbx_port_params.
1162 app.traffic_type_priority[i]];
1163 /* There can be only one strict pg */
1164 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES)
1165 bnx2x_dcbx_add_to_cos_bw(bp, &cos_data->data[entry],
1166 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry));
1168 /* If we join a group and one is strict
1169 * than the bw rulls */
1170 cos_data->data[entry].strict =
1171 BNX2X_DCBX_STRICT_COS_HIGHEST;
1173 if ((0 == cos_data->data[0].pri_join_mask) &&
1174 (0 == cos_data->data[1].pri_join_mask))
1175 BNX2X_ERR("dcbx error: Both groups must have priorities\n");
1179 #define POWER_OF_2(x) ((0 != x) && (0 == (x & (x-1))))
1182 static void bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(struct bnx2x *bp,
1183 struct pg_help_data *pg_help_data,
1184 struct cos_help_data *cos_data,
1190 u32 pri_mask_without_pri = 0;
1191 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1193 if (num_of_dif_pri == 1) {
1194 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, pri_join_mask);
1197 /* single priority group */
1198 if (pg_help_data->data[0].pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1199 /* If there are both pauseable and non-pauseable priorities,
1200 * the pauseable priorities go to the first queue and
1201 * the non-pauseable priorities go to the second queue.
1203 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1205 cos_data->data[0].pausable = true;
1207 cos_data->data[1].pausable = false;
1209 if (2 == num_of_dif_pri) {
1210 cos_data->data[0].cos_bw = 50;
1211 cos_data->data[1].cos_bw = 50;
1214 if (3 == num_of_dif_pri) {
1215 if (POWER_OF_2(DCBX_PFC_PRI_GET_PAUSE(bp,
1217 cos_data->data[0].cos_bw = 33;
1218 cos_data->data[1].cos_bw = 67;
1220 cos_data->data[0].cos_bw = 67;
1221 cos_data->data[1].cos_bw = 33;
1225 } else if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask)) {
1226 /* If there are only pauseable priorities,
1227 * then one/two priorities go to the first queue
1228 * and one priority goes to the second queue.
1230 if (2 == num_of_dif_pri) {
1231 cos_data->data[0].cos_bw = 50;
1232 cos_data->data[1].cos_bw = 50;
1234 cos_data->data[0].cos_bw = 67;
1235 cos_data->data[1].cos_bw = 33;
1237 cos_data->data[1].pausable = true;
1238 cos_data->data[0].pausable = true;
1239 /* All priorities except FCOE */
1240 cos_data->data[0].pri_join_mask = (pri_join_mask &
1241 ((u8)~(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE])));
1242 /* Only FCOE priority.*/
1243 cos_data->data[1].pri_join_mask =
1244 (1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]);
1246 /* If there are only non-pauseable priorities,
1247 * they will all go to the same queue.
1249 bnx2x_dcbx_ets_disabled_entry_data(bp,
1250 cos_data, pri_join_mask);
1252 /* priority group which is not BW limited (PG#15):*/
1253 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1254 /* If there are both pauseable and non-pauseable
1255 * priorities, the pauseable priorities go to the first
1256 * queue and the non-pauseable priorities
1257 * go to the second queue.
1259 if (DCBX_PFC_PRI_GET_PAUSE(bp, pri_join_mask) >
1260 DCBX_PFC_PRI_GET_NON_PAUSE(bp, pri_join_mask)) {
1261 cos_data->data[0].strict =
1262 BNX2X_DCBX_STRICT_COS_HIGHEST;
1263 cos_data->data[1].strict =
1264 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1265 BNX2X_DCBX_STRICT_COS_HIGHEST);
1267 cos_data->data[0].strict =
1268 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1269 BNX2X_DCBX_STRICT_COS_HIGHEST);
1270 cos_data->data[1].strict =
1271 BNX2X_DCBX_STRICT_COS_HIGHEST;
1274 cos_data->data[0].pausable = true;
1275 /* Non pause-able.*/
1276 cos_data->data[1].pausable = false;
1278 /* If there are only pauseable priorities or
1279 * only non-pauseable,* the lower priorities go
1280 * to the first queue and the higherpriorities go
1281 * to the second queue.
1283 cos_data->data[0].pausable =
1284 cos_data->data[1].pausable =
1285 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1287 for (i = 0 ; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) {
1288 pri_tested = 1 << bp->dcbx_port_params.
1289 app.traffic_type_priority[i];
1290 /* Remove priority tested */
1291 pri_mask_without_pri =
1292 (pri_join_mask & ((u8)(~pri_tested)));
1293 if (pri_mask_without_pri < pri_tested)
1297 if (i == LLFC_DRIVER_TRAFFIC_TYPE_MAX)
1298 BNX2X_ERR("Invalid value for pri_join_mask - could not find a priority\n");
1300 cos_data->data[0].pri_join_mask = pri_mask_without_pri;
1301 cos_data->data[1].pri_join_mask = pri_tested;
1302 /* Both queues are strict priority,
1303 * and that with the highest priority
1304 * gets the highest strict priority in the arbiter.
1306 cos_data->data[0].strict =
1307 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1308 BNX2X_DCBX_STRICT_COS_HIGHEST);
1309 cos_data->data[1].strict =
1310 BNX2X_DCBX_STRICT_COS_HIGHEST;
1315 static void bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1317 struct pg_help_data *pg_help_data,
1318 struct dcbx_ets_feature *ets,
1319 struct cos_help_data *cos_data,
1320 u32 *pg_pri_orginal_spread,
1325 u8 pg[DCBX_COS_MAX_NUM_E2] = { 0 };
1327 /* If there are both pauseable and non-pauseable priorities,
1328 * the pauseable priorities go to the first queue and
1329 * the non-pauseable priorities go to the second queue.
1331 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1332 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1333 pg_help_data->data[0].pg_priority) ||
1334 IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1335 pg_help_data->data[1].pg_priority)) {
1336 /* If one PG contains both pauseable and
1337 * non-pauseable priorities then ETS is disabled.
1339 bnx2x_dcbx_separate_pauseable_from_non(bp, cos_data,
1340 pg_pri_orginal_spread, ets);
1341 bp->dcbx_port_params.ets.enabled = false;
1346 cos_data->data[0].pausable = true;
1347 /* Non pauseable. */
1348 cos_data->data[1].pausable = false;
1349 if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp,
1350 pg_help_data->data[0].pg_priority)) {
1351 /* 0 is pauseable */
1352 cos_data->data[0].pri_join_mask =
1353 pg_help_data->data[0].pg_priority;
1354 pg[0] = pg_help_data->data[0].pg;
1355 cos_data->data[1].pri_join_mask =
1356 pg_help_data->data[1].pg_priority;
1357 pg[1] = pg_help_data->data[1].pg;
1358 } else {/* 1 is pauseable */
1359 cos_data->data[0].pri_join_mask =
1360 pg_help_data->data[1].pg_priority;
1361 pg[0] = pg_help_data->data[1].pg;
1362 cos_data->data[1].pri_join_mask =
1363 pg_help_data->data[0].pg_priority;
1364 pg[1] = pg_help_data->data[0].pg;
1367 /* If there are only pauseable priorities or
1368 * only non-pauseable, each PG goes to a queue.
1370 cos_data->data[0].pausable = cos_data->data[1].pausable =
1371 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1372 cos_data->data[0].pri_join_mask =
1373 pg_help_data->data[0].pg_priority;
1374 pg[0] = pg_help_data->data[0].pg;
1375 cos_data->data[1].pri_join_mask =
1376 pg_help_data->data[1].pg_priority;
1377 pg[1] = pg_help_data->data[1].pg;
1380 /* There can be only one strict pg */
1381 for (i = 0 ; i < ARRAY_SIZE(pg); i++) {
1382 if (pg[i] < DCBX_MAX_NUM_PG_BW_ENTRIES)
1383 cos_data->data[i].cos_bw =
1384 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg[i]);
1386 cos_data->data[i].strict =
1387 BNX2X_DCBX_STRICT_COS_HIGHEST;
1391 static int bnx2x_dcbx_join_pgs(
1393 struct dcbx_ets_feature *ets,
1394 struct pg_help_data *pg_help_data,
1395 u8 required_num_of_pg)
1397 u8 entry_joined = pg_help_data->num_of_pg - 1;
1398 u8 entry_removed = entry_joined + 1;
1401 if (required_num_of_pg == 0 || ARRAY_SIZE(pg_help_data->data)
1402 <= pg_help_data->num_of_pg) {
1404 BNX2X_ERR("required_num_of_pg can't be zero\n");
1408 while (required_num_of_pg < pg_help_data->num_of_pg) {
1409 entry_joined = pg_help_data->num_of_pg - 2;
1410 entry_removed = entry_joined + 1;
1412 entry_removed %= ARRAY_SIZE(pg_help_data->data);
1414 pg_help_data->data[entry_joined].pg_priority |=
1415 pg_help_data->data[entry_removed].pg_priority;
1417 pg_help_data->data[entry_joined].num_of_dif_pri +=
1418 pg_help_data->data[entry_removed].num_of_dif_pri;
1420 if (pg_help_data->data[entry_joined].pg == DCBX_STRICT_PRI_PG ||
1421 pg_help_data->data[entry_removed].pg == DCBX_STRICT_PRI_PG)
1422 /* Entries joined strict priority rules */
1423 pg_help_data->data[entry_joined].pg =
1426 /* Entries can be joined join BW */
1427 pg_joined = DCBX_PG_BW_GET(ets->pg_bw_tbl,
1428 pg_help_data->data[entry_joined].pg) +
1429 DCBX_PG_BW_GET(ets->pg_bw_tbl,
1430 pg_help_data->data[entry_removed].pg);
1432 DCBX_PG_BW_SET(ets->pg_bw_tbl,
1433 pg_help_data->data[entry_joined].pg, pg_joined);
1435 /* Joined the entries */
1436 pg_help_data->num_of_pg--;
1442 static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1444 struct pg_help_data *pg_help_data,
1445 struct dcbx_ets_feature *ets,
1446 struct cos_help_data *cos_data,
1447 u32 *pg_pri_orginal_spread,
1455 bool b_found_strict = false;
1456 u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1458 cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1459 /* If there are both pauseable and non-pauseable priorities,
1460 * the pauseable priorities go to the first queue and the
1461 * non-pauseable priorities go to the second queue.
1463 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask))
1464 bnx2x_dcbx_separate_pauseable_from_non(bp,
1465 cos_data, pg_pri_orginal_spread, ets);
1467 /* If two BW-limited PG-s were combined to one queue,
1468 * the BW is their sum.
1470 * If there are only pauseable priorities or only non-pauseable,
1471 * and there are both BW-limited and non-BW-limited PG-s,
1472 * the BW-limited PG/s go to one queue and the non-BW-limited
1473 * PG/s go to the second queue.
1475 * If there are only pauseable priorities or only non-pauseable
1476 * and all are BW limited, then two priorities go to the first
1477 * queue and one priority goes to the second queue.
1479 * We will join this two cases:
1480 * if one is BW limited it will go to the secoend queue
1481 * otherwise the last priority will get it
1484 cos_data->data[0].pausable = cos_data->data[1].pausable =
1485 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1487 for (i = 0 ; i < num_of_pri; i++) {
1488 pri_tested = 1 << bp->dcbx_port_params.
1489 app.traffic_type_priority[i];
1490 pg_entry = (u8)pg_pri_orginal_spread[bp->
1491 dcbx_port_params.app.traffic_type_priority[i]];
1493 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1496 if (i == (num_of_pri-1) &&
1497 false == b_found_strict)
1498 /* last entry will be handled separately
1499 * If no priority is strict than last
1500 * enty goes to last queue.*/
1502 cos_data->data[entry].pri_join_mask |=
1504 bnx2x_dcbx_add_to_cos_bw(bp,
1505 &cos_data->data[entry],
1506 DCBX_PG_BW_GET(ets->pg_bw_tbl,
1509 b_found_strict = true;
1510 cos_data->data[1].pri_join_mask |= pri_tested;
1511 /* If we join a group and one is strict
1512 * than the bw rulls */
1513 cos_data->data[1].strict =
1514 BNX2X_DCBX_STRICT_COS_HIGHEST;
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,
1528 /* default E2 settings */
1529 cos_data->num_of_cos = DCBX_COS_MAX_NUM_E2;
1531 switch (help_data->num_of_pg) {
1533 bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(
1541 bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1546 pg_pri_orginal_spread,
1552 bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1557 pg_pri_orginal_spread,
1562 BNX2X_ERR("Wrong pg_help_data.num_of_pg\n");
1563 bnx2x_dcbx_ets_disabled_entry_data(bp,
1564 cos_data, pri_join_mask);
1568 static int bnx2x_dcbx_spread_strict_pri(struct bnx2x *bp,
1569 struct cos_help_data *cos_data,
1571 u8 num_spread_of_entries,
1574 u8 strict_pri = BNX2X_DCBX_STRICT_COS_HIGHEST;
1575 u8 num_of_app_pri = MAX_PFC_PRIORITIES;
1578 while (num_spread_of_entries && num_of_app_pri > 0) {
1579 app_pri_bit = 1 << (num_of_app_pri - 1);
1580 if (app_pri_bit & strict_app_pris) {
1581 struct cos_entry_help_data *data = &cos_data->
1583 num_spread_of_entries--;
1584 if (num_spread_of_entries == 0) {
1585 /* last entry needed put all the entries left */
1586 data->cos_bw = DCBX_INVALID_COS_BW;
1587 data->strict = strict_pri;
1588 data->pri_join_mask = strict_app_pris;
1589 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1590 data->pri_join_mask);
1592 strict_app_pris &= ~app_pri_bit;
1594 data->cos_bw = DCBX_INVALID_COS_BW;
1595 data->strict = strict_pri;
1596 data->pri_join_mask = app_pri_bit;
1597 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1598 data->pri_join_mask);
1602 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(strict_pri);
1609 if (num_spread_of_entries) {
1610 BNX2X_ERR("Didn't succeed to spread strict priorities\n");
1617 static u8 bnx2x_dcbx_cee_fill_strict_pri(struct bnx2x *bp,
1618 struct cos_help_data *cos_data,
1620 u8 num_spread_of_entries,
1623 if (bnx2x_dcbx_spread_strict_pri(bp, cos_data, entry,
1624 num_spread_of_entries,
1626 struct cos_entry_help_data *data = &cos_data->
1629 data->cos_bw = DCBX_INVALID_COS_BW;
1630 data->strict = BNX2X_DCBX_STRICT_COS_HIGHEST;
1631 data->pri_join_mask = strict_app_pris;
1632 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1633 data->pri_join_mask);
1637 return num_spread_of_entries;
1640 static void bnx2x_dcbx_cee_fill_cos_params(struct bnx2x *bp,
1641 struct pg_help_data *help_data,
1642 struct dcbx_ets_feature *ets,
1643 struct cos_help_data *cos_data,
1647 u8 need_num_of_entries = 0;
1652 * if the number of requested PG-s in CEE is greater than 3
1653 * then the results are not determined since this is a violation
1656 if (help_data->num_of_pg > DCBX_COS_MAX_NUM_E3B0) {
1657 if (bnx2x_dcbx_join_pgs(bp, ets, help_data,
1658 DCBX_COS_MAX_NUM_E3B0)) {
1659 BNX2X_ERR("Unable to reduce the number of PGs - we will disables ETS\n");
1660 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data,
1666 for (i = 0 ; i < help_data->num_of_pg; i++) {
1667 struct pg_entry_help_data *pg = &help_data->data[i];
1668 if (pg->pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1669 struct cos_entry_help_data *data = &cos_data->
1672 data->cos_bw = DCBX_PG_BW_GET(ets->pg_bw_tbl, pg->pg);
1673 data->strict = BNX2X_DCBX_STRICT_INVALID;
1674 data->pri_join_mask = pg->pg_priority;
1675 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1676 data->pri_join_mask);
1680 need_num_of_entries = min_t(u8,
1681 (u8)pg->num_of_dif_pri,
1682 (u8)DCBX_COS_MAX_NUM_E3B0 -
1683 help_data->num_of_pg + 1);
1685 * If there are still VOQ-s which have no associated PG,
1686 * then associate these VOQ-s to PG15. These PG-s will
1687 * be used for SP between priorities on PG15.
1689 entry += bnx2x_dcbx_cee_fill_strict_pri(bp, cos_data,
1690 entry, need_num_of_entries, pg->pg_priority);
1694 /* the entry will represent the number of COSes used */
1695 cos_data->num_of_cos = entry;
1697 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
1698 struct pg_help_data *help_data,
1699 struct dcbx_ets_feature *ets,
1700 u32 *pg_pri_orginal_spread)
1702 struct cos_help_data cos_data;
1704 u32 pri_join_mask = 0;
1705 u8 num_of_dif_pri = 0;
1707 memset(&cos_data, 0, sizeof(cos_data));
1709 /* Validate the pg value */
1710 for (i = 0; i < help_data->num_of_pg ; i++) {
1711 if (DCBX_STRICT_PRIORITY != help_data->data[i].pg &&
1712 DCBX_MAX_NUM_PG_BW_ENTRIES <= help_data->data[i].pg)
1713 BNX2X_ERR("Invalid pg[%d] data %x\n", i,
1714 help_data->data[i].pg);
1715 pri_join_mask |= help_data->data[i].pg_priority;
1716 num_of_dif_pri += help_data->data[i].num_of_dif_pri;
1720 cos_data.num_of_cos = 1;
1721 for (i = 0; i < ARRAY_SIZE(cos_data.data); i++) {
1722 cos_data.data[i].pri_join_mask = 0;
1723 cos_data.data[i].pausable = false;
1724 cos_data.data[i].strict = BNX2X_DCBX_STRICT_INVALID;
1725 cos_data.data[i].cos_bw = DCBX_INVALID_COS_BW;
1728 if (CHIP_IS_E3B0(bp))
1729 bnx2x_dcbx_cee_fill_cos_params(bp, help_data, ets,
1730 &cos_data, pri_join_mask);
1731 else /* E2 + E3A0 */
1732 bnx2x_dcbx_2cos_limit_cee_fill_cos_params(bp,
1735 pg_pri_orginal_spread,
1739 for (i = 0; i < cos_data.num_of_cos ; i++) {
1740 struct bnx2x_dcbx_cos_params *p =
1741 &bp->dcbx_port_params.ets.cos_params[i];
1743 p->strict = cos_data.data[i].strict;
1744 p->bw_tbl = cos_data.data[i].cos_bw;
1745 p->pri_bitmask = cos_data.data[i].pri_join_mask;
1746 p->pauseable = cos_data.data[i].pausable;
1749 if (p->bw_tbl != DCBX_INVALID_COS_BW ||
1750 p->strict != BNX2X_DCBX_STRICT_INVALID) {
1751 if (p->pri_bitmask == 0)
1752 BNX2X_ERR("Invalid pri_bitmask for %d\n", i);
1754 if (CHIP_IS_E2(bp) || CHIP_IS_E3A0(bp)) {
1757 DCBX_PFC_PRI_GET_NON_PAUSE(bp,
1758 p->pri_bitmask) != 0)
1759 BNX2X_ERR("Inconsistent config for pausable COS %d\n",
1762 if (!p->pauseable &&
1763 DCBX_PFC_PRI_GET_PAUSE(bp,
1764 p->pri_bitmask) != 0)
1765 BNX2X_ERR("Inconsistent config for nonpausable COS %d\n",
1771 DP(BNX2X_MSG_DCB, "COS %d PAUSABLE prijoinmask 0x%x\n",
1772 i, cos_data.data[i].pri_join_mask);
1775 "COS %d NONPAUSABLE prijoinmask 0x%x\n",
1776 i, cos_data.data[i].pri_join_mask);
1779 bp->dcbx_port_params.ets.num_of_cos = cos_data.num_of_cos ;
1782 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
1783 u32 *set_configuration_ets_pg,
1788 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
1789 set_configuration_ets_pg[i] = DCBX_PRI_PG_GET(pri_pg_tbl, i);
1791 DP(BNX2X_MSG_DCB, "set_configuration_ets_pg[%d] = 0x%x\n",
1792 i, set_configuration_ets_pg[i]);
1796 static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
1797 struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1800 u8 cos = 0, pri = 0;
1801 struct priority_cos *tt2cos;
1802 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1803 int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
1804 GET_FLAGS(SHMEM2_RD(bp, drv_flags),
1805 1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
1807 memset(pfc_fw_cfg, 0, sizeof(*pfc_fw_cfg));
1809 /* to disable DCB - the structure must be zeroed */
1810 if ((bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) && !mfw_configured)
1814 tt2cos = pfc_fw_cfg->traffic_type_to_priority_cos;
1816 /* Fw version should be incremented each update */
1817 pfc_fw_cfg->dcb_version = ++bp->dcb_version;
1818 pfc_fw_cfg->dcb_enabled = 1;
1820 /* Fill priority parameters */
1821 for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1822 tt2cos[pri].priority = ttp[pri];
1823 pri_bit = 1 << tt2cos[pri].priority;
1825 /* Fill COS parameters based on COS calculated to
1826 * make it more general for future use */
1827 for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++)
1828 if (bp->dcbx_port_params.ets.cos_params[cos].
1829 pri_bitmask & pri_bit)
1830 tt2cos[pri].cos = cos;
1833 /* we never want the FW to add a 0 vlan tag */
1834 pfc_fw_cfg->dont_add_pri_0_en = 1;
1836 bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg);
1839 void bnx2x_dcbx_pmf_update(struct bnx2x *bp)
1841 /* if we need to syncronize DCBX result from prev PMF
1842 * read it from shmem and update bp and netdev accordingly
1844 if (SHMEM2_HAS(bp, drv_flags) &&
1845 GET_FLAGS(SHMEM2_RD(bp, drv_flags), 1 << DRV_FLAGS_DCB_CONFIGURED)) {
1846 /* Read neg results if dcbx is in the FW */
1847 if (bnx2x_dcbx_read_shmem_neg_results(bp))
1850 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1852 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1856 * Add new app tlvs to dcbnl
1858 bnx2x_dcbnl_update_applist(bp, false);
1860 * Send a notification for the new negotiated parameters
1862 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
1865 * reconfigure the netdevice with the results of the new
1868 bnx2x_dcbx_update_tc_mapping(bp);
1875 #define BNX2X_DCBX_CAPS (DCB_CAP_DCBX_LLD_MANAGED | \
1876 DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC)
1878 static inline bool bnx2x_dcbnl_set_valid(struct bnx2x *bp)
1880 /* validate dcbnl call that may change HW state:
1881 * DCB is on and DCBX mode was SUCCESSFULLY set by the user.
1883 return bp->dcb_state && bp->dcbx_mode_uset;
1886 static u8 bnx2x_dcbnl_get_state(struct net_device *netdev)
1888 struct bnx2x *bp = netdev_priv(netdev);
1889 DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcb_state);
1890 return bp->dcb_state;
1893 static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state)
1895 struct bnx2x *bp = netdev_priv(netdev);
1896 DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");
1898 /* Fail to set state to "enabled" if dcbx is disabled in nvram */
1899 if (state && ((bp->dcbx_enabled == BNX2X_DCBX_ENABLED_OFF) ||
1900 (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_INVALID))) {
1901 DP(BNX2X_MSG_DCB, "Can not set dcbx to enabled while it is disabled in nvm\n");
1905 bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled);
1909 static void bnx2x_dcbnl_get_perm_hw_addr(struct net_device *netdev,
1912 struct bnx2x *bp = netdev_priv(netdev);
1913 DP(BNX2X_MSG_DCB, "GET-PERM-ADDR\n");
1915 /* first the HW mac address */
1916 memcpy(perm_addr, netdev->dev_addr, netdev->addr_len);
1918 if (CNIC_LOADED(bp))
1919 /* second SAN address */
1920 memcpy(perm_addr+netdev->addr_len, bp->fip_mac,
1924 static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio,
1925 u8 prio_type, u8 pgid, u8 bw_pct,
1928 struct bnx2x *bp = netdev_priv(netdev);
1930 DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, pgid);
1931 if (!bnx2x_dcbnl_set_valid(bp) || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
1935 * bw_pct ingnored - band-width percentage devision between user
1936 * priorities within the same group is not
1937 * standard and hence not supported
1939 * prio_type igonred - priority levels within the same group are not
1940 * standard and hence are not supported. According
1941 * to the standard pgid 15 is dedicated to strict
1942 * prioirty traffic (on the port level).
1947 bp->dcbx_config_params.admin_configuration_ets_pg[prio] = pgid;
1948 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1951 static void bnx2x_dcbnl_set_pg_bwgcfg_tx(struct net_device *netdev,
1952 int pgid, u8 bw_pct)
1954 struct bnx2x *bp = netdev_priv(netdev);
1955 DP(BNX2X_MSG_DCB, "pgid[%d] = %d\n", pgid, bw_pct);
1957 if (!bnx2x_dcbnl_set_valid(bp) || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
1960 bp->dcbx_config_params.admin_configuration_bw_precentage[pgid] = bw_pct;
1961 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1964 static void bnx2x_dcbnl_set_pg_tccfg_rx(struct net_device *netdev, int prio,
1965 u8 prio_type, u8 pgid, u8 bw_pct,
1968 struct bnx2x *bp = netdev_priv(netdev);
1969 DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n");
1972 static void bnx2x_dcbnl_set_pg_bwgcfg_rx(struct net_device *netdev,
1973 int pgid, u8 bw_pct)
1975 struct bnx2x *bp = netdev_priv(netdev);
1976 DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n");
1979 static void bnx2x_dcbnl_get_pg_tccfg_tx(struct net_device *netdev, int prio,
1980 u8 *prio_type, u8 *pgid, u8 *bw_pct,
1983 struct bnx2x *bp = netdev_priv(netdev);
1984 DP(BNX2X_MSG_DCB, "prio = %d\n", prio);
1987 * bw_pct ingnored - band-width percentage devision between user
1988 * priorities within the same group is not
1989 * standard and hence not supported
1991 * prio_type igonred - priority levels within the same group are not
1992 * standard and hence are not supported. According
1993 * to the standard pgid 15 is dedicated to strict
1994 * prioirty traffic (on the port level).
1998 *up_map = *bw_pct = *prio_type = *pgid = 0;
2000 if (!bp->dcb_state || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
2003 *pgid = DCBX_PRI_PG_GET(bp->dcbx_local_feat.ets.pri_pg_tbl, prio);
2006 static void bnx2x_dcbnl_get_pg_bwgcfg_tx(struct net_device *netdev,
2007 int pgid, u8 *bw_pct)
2009 struct bnx2x *bp = netdev_priv(netdev);
2010 DP(BNX2X_MSG_DCB, "pgid = %d\n", pgid);
2014 if (!bp->dcb_state || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
2017 *bw_pct = DCBX_PG_BW_GET(bp->dcbx_local_feat.ets.pg_bw_tbl, pgid);
2020 static void bnx2x_dcbnl_get_pg_tccfg_rx(struct net_device *netdev, int prio,
2021 u8 *prio_type, u8 *pgid, u8 *bw_pct,
2024 struct bnx2x *bp = netdev_priv(netdev);
2025 DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n");
2027 *prio_type = *pgid = *bw_pct = *up_map = 0;
2030 static void bnx2x_dcbnl_get_pg_bwgcfg_rx(struct net_device *netdev,
2031 int pgid, u8 *bw_pct)
2033 struct bnx2x *bp = netdev_priv(netdev);
2034 DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n");
2039 static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio,
2042 struct bnx2x *bp = netdev_priv(netdev);
2043 DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, setting);
2045 if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES)
2049 bp->dcbx_config_params.admin_pfc_bitmap |= (1 << prio);
2050 bp->dcbx_config_params.admin_pfc_tx_enable = 1;
2052 bp->dcbx_config_params.admin_pfc_bitmap &= ~(1 << prio);
2056 static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio,
2059 struct bnx2x *bp = netdev_priv(netdev);
2060 DP(BNX2X_MSG_DCB, "prio = %d\n", prio);
2064 if (!bp->dcb_state || prio >= MAX_PFC_PRIORITIES)
2067 *setting = (bp->dcbx_local_feat.pfc.pri_en_bitmap >> prio) & 0x1;
2070 static u8 bnx2x_dcbnl_set_all(struct net_device *netdev)
2072 struct bnx2x *bp = netdev_priv(netdev);
2075 DP(BNX2X_MSG_DCB, "SET-ALL\n");
2077 if (!bnx2x_dcbnl_set_valid(bp))
2080 if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
2082 "Handling parity error recovery. Try again later\n");
2085 if (netif_running(bp->dev)) {
2086 bnx2x_update_drv_flags(bp,
2087 1 << DRV_FLAGS_DCB_MFW_CONFIGURED,
2089 bnx2x_dcbx_init(bp, true);
2091 DP(BNX2X_MSG_DCB, "set_dcbx_params done (%d)\n", rc);
2098 static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap)
2100 struct bnx2x *bp = netdev_priv(netdev);
2103 if (bp->dcb_state) {
2105 case DCB_CAP_ATTR_PG:
2108 case DCB_CAP_ATTR_PFC:
2111 case DCB_CAP_ATTR_UP2TC:
2114 case DCB_CAP_ATTR_PG_TCS:
2115 *cap = 0x80; /* 8 priorities for PGs */
2117 case DCB_CAP_ATTR_PFC_TCS:
2118 *cap = 0x80; /* 8 priorities for PFC */
2120 case DCB_CAP_ATTR_GSP:
2123 case DCB_CAP_ATTR_BCN:
2126 case DCB_CAP_ATTR_DCBX:
2127 *cap = BNX2X_DCBX_CAPS;
2130 BNX2X_ERR("Non valid capability ID\n");
2135 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2139 DP(BNX2X_MSG_DCB, "capid %d:%x\n", capid, *cap);
2143 static int bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num)
2145 struct bnx2x *bp = netdev_priv(netdev);
2148 DP(BNX2X_MSG_DCB, "tcid %d\n", tcid);
2150 if (bp->dcb_state) {
2152 case DCB_NUMTCS_ATTR_PG:
2153 *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2154 DCBX_COS_MAX_NUM_E2;
2156 case DCB_NUMTCS_ATTR_PFC:
2157 *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2158 DCBX_COS_MAX_NUM_E2;
2161 BNX2X_ERR("Non valid TC-ID\n");
2166 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2173 static int bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num)
2175 struct bnx2x *bp = netdev_priv(netdev);
2176 DP(BNX2X_MSG_DCB, "num tcs = %d; Not supported\n", num);
2180 static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev)
2182 struct bnx2x *bp = netdev_priv(netdev);
2183 DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcbx_local_feat.pfc.enabled);
2188 return bp->dcbx_local_feat.pfc.enabled;
2191 static void bnx2x_dcbnl_set_pfc_state(struct net_device *netdev, u8 state)
2193 struct bnx2x *bp = netdev_priv(netdev);
2194 DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");
2196 if (!bnx2x_dcbnl_set_valid(bp))
2199 bp->dcbx_config_params.admin_pfc_tx_enable =
2200 bp->dcbx_config_params.admin_pfc_enable = (state ? 1 : 0);
2203 static void bnx2x_admin_app_set_ent(
2204 struct bnx2x_admin_priority_app_table *app_ent,
2205 u8 idtype, u16 idval, u8 up)
2210 case DCB_APP_IDTYPE_ETHTYPE:
2211 app_ent->traffic_type = TRAFFIC_TYPE_ETH;
2213 case DCB_APP_IDTYPE_PORTNUM:
2214 app_ent->traffic_type = TRAFFIC_TYPE_PORT;
2217 break; /* never gets here */
2219 app_ent->app_id = idval;
2220 app_ent->priority = up;
2223 static bool bnx2x_admin_app_is_equal(
2224 struct bnx2x_admin_priority_app_table *app_ent,
2225 u8 idtype, u16 idval)
2227 if (!app_ent->valid)
2231 case DCB_APP_IDTYPE_ETHTYPE:
2232 if (app_ent->traffic_type != TRAFFIC_TYPE_ETH)
2235 case DCB_APP_IDTYPE_PORTNUM:
2236 if (app_ent->traffic_type != TRAFFIC_TYPE_PORT)
2242 if (app_ent->app_id != idval)
2248 static int bnx2x_set_admin_app_up(struct bnx2x *bp, u8 idtype, u16 idval, u8 up)
2252 /* iterate over the app entries looking for idtype and idval */
2253 for (i = 0, ff = -1; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
2254 struct bnx2x_admin_priority_app_table *app_ent =
2255 &bp->dcbx_config_params.admin_priority_app_table[i];
2256 if (bnx2x_admin_app_is_equal(app_ent, idtype, idval))
2259 if (ff < 0 && !app_ent->valid)
2262 if (i < DCBX_CONFIG_MAX_APP_PROTOCOL)
2263 /* if found overwrite up */
2264 bp->dcbx_config_params.
2265 admin_priority_app_table[i].priority = up;
2267 /* not found use first-free */
2268 bnx2x_admin_app_set_ent(
2269 &bp->dcbx_config_params.admin_priority_app_table[ff],
2272 /* app table is full */
2273 BNX2X_ERR("Application table is too large\n");
2277 /* up configured, if not 0 make sure feature is enabled */
2279 bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
2284 static u8 bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype,
2287 struct bnx2x *bp = netdev_priv(netdev);
2289 DP(BNX2X_MSG_DCB, "app_type %d, app_id %x, prio bitmap %d\n",
2292 if (!bnx2x_dcbnl_set_valid(bp)) {
2293 DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
2299 case DCB_APP_IDTYPE_ETHTYPE:
2300 case DCB_APP_IDTYPE_PORTNUM:
2303 DP(BNX2X_MSG_DCB, "Wrong ID type\n");
2306 return bnx2x_set_admin_app_up(bp, idtype, idval, up);
2309 static u8 bnx2x_dcbnl_get_dcbx(struct net_device *netdev)
2311 struct bnx2x *bp = netdev_priv(netdev);
2314 state = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE;
2316 if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF)
2317 state |= DCB_CAP_DCBX_STATIC;
2322 static u8 bnx2x_dcbnl_set_dcbx(struct net_device *netdev, u8 state)
2324 struct bnx2x *bp = netdev_priv(netdev);
2325 DP(BNX2X_MSG_DCB, "state = %02x\n", state);
2329 if ((state & BNX2X_DCBX_CAPS) != state) {
2330 BNX2X_ERR("Requested DCBX mode %x is beyond advertised capabilities\n",
2335 if (bp->dcb_state != BNX2X_DCB_STATE_ON) {
2336 BNX2X_ERR("DCB turned off, DCBX configuration is invalid\n");
2340 if (state & DCB_CAP_DCBX_STATIC)
2341 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_OFF;
2343 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_ON;
2345 bp->dcbx_mode_uset = true;
2349 static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid,
2352 struct bnx2x *bp = netdev_priv(netdev);
2355 DP(BNX2X_MSG_DCB, "featid %d\n", featid);
2357 if (bp->dcb_state) {
2360 case DCB_FEATCFG_ATTR_PG:
2361 if (bp->dcbx_local_feat.ets.enabled)
2362 *flags |= DCB_FEATCFG_ENABLE;
2363 if (bp->dcbx_error & DCBX_LOCAL_ETS_ERROR)
2364 *flags |= DCB_FEATCFG_ERROR;
2366 case DCB_FEATCFG_ATTR_PFC:
2367 if (bp->dcbx_local_feat.pfc.enabled)
2368 *flags |= DCB_FEATCFG_ENABLE;
2369 if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR |
2370 DCBX_LOCAL_PFC_MISMATCH))
2371 *flags |= DCB_FEATCFG_ERROR;
2373 case DCB_FEATCFG_ATTR_APP:
2374 if (bp->dcbx_local_feat.app.enabled)
2375 *flags |= DCB_FEATCFG_ENABLE;
2376 if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR |
2377 DCBX_LOCAL_APP_MISMATCH))
2378 *flags |= DCB_FEATCFG_ERROR;
2381 BNX2X_ERR("Non valid featrue-ID\n");
2386 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2393 static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid,
2396 struct bnx2x *bp = netdev_priv(netdev);
2399 DP(BNX2X_MSG_DCB, "featid = %d flags = %02x\n", featid, flags);
2401 /* ignore the 'advertise' flag */
2402 if (bnx2x_dcbnl_set_valid(bp)) {
2404 case DCB_FEATCFG_ATTR_PG:
2405 bp->dcbx_config_params.admin_ets_enable =
2406 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2407 bp->dcbx_config_params.admin_ets_willing =
2408 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2410 case DCB_FEATCFG_ATTR_PFC:
2411 bp->dcbx_config_params.admin_pfc_enable =
2412 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2413 bp->dcbx_config_params.admin_pfc_willing =
2414 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2416 case DCB_FEATCFG_ATTR_APP:
2417 /* ignore enable, always enabled */
2418 bp->dcbx_config_params.admin_app_priority_willing =
2419 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2422 BNX2X_ERR("Non valid featrue-ID\n");
2427 DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
2434 static int bnx2x_peer_appinfo(struct net_device *netdev,
2435 struct dcb_peer_app_info *info, u16* app_count)
2438 struct bnx2x *bp = netdev_priv(netdev);
2440 DP(BNX2X_MSG_DCB, "APP-INFO\n");
2442 info->willing = (bp->dcbx_remote_flags & DCBX_APP_REM_WILLING) ?: 0;
2443 info->error = (bp->dcbx_remote_flags & DCBX_APP_RX_ERROR) ?: 0;
2446 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++)
2447 if (bp->dcbx_remote_feat.app.app_pri_tbl[i].appBitfield &
2448 DCBX_APP_ENTRY_VALID)
2453 static int bnx2x_peer_apptable(struct net_device *netdev,
2454 struct dcb_app *table)
2457 struct bnx2x *bp = netdev_priv(netdev);
2459 DP(BNX2X_MSG_DCB, "APP-TABLE\n");
2461 for (i = 0, j = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
2462 struct dcbx_app_priority_entry *ent =
2463 &bp->dcbx_remote_feat.app.app_pri_tbl[i];
2465 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
2466 table[j].selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
2467 table[j].priority = bnx2x_dcbx_dcbnl_app_up(ent);
2468 table[j++].protocol = ent->app_id;
2474 static int bnx2x_cee_peer_getpg(struct net_device *netdev, struct cee_pg *pg)
2477 struct bnx2x *bp = netdev_priv(netdev);
2479 pg->willing = (bp->dcbx_remote_flags & DCBX_ETS_REM_WILLING) ?: 0;
2481 for (i = 0; i < CEE_DCBX_MAX_PGS; i++) {
2483 DCBX_PG_BW_GET(bp->dcbx_remote_feat.ets.pg_bw_tbl, i);
2485 DCBX_PRI_PG_GET(bp->dcbx_remote_feat.ets.pri_pg_tbl, i);
2490 static int bnx2x_cee_peer_getpfc(struct net_device *netdev,
2491 struct cee_pfc *pfc)
2493 struct bnx2x *bp = netdev_priv(netdev);
2494 pfc->tcs_supported = bp->dcbx_remote_feat.pfc.pfc_caps;
2495 pfc->pfc_en = bp->dcbx_remote_feat.pfc.pri_en_bitmap;
2499 const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = {
2500 .getstate = bnx2x_dcbnl_get_state,
2501 .setstate = bnx2x_dcbnl_set_state,
2502 .getpermhwaddr = bnx2x_dcbnl_get_perm_hw_addr,
2503 .setpgtccfgtx = bnx2x_dcbnl_set_pg_tccfg_tx,
2504 .setpgbwgcfgtx = bnx2x_dcbnl_set_pg_bwgcfg_tx,
2505 .setpgtccfgrx = bnx2x_dcbnl_set_pg_tccfg_rx,
2506 .setpgbwgcfgrx = bnx2x_dcbnl_set_pg_bwgcfg_rx,
2507 .getpgtccfgtx = bnx2x_dcbnl_get_pg_tccfg_tx,
2508 .getpgbwgcfgtx = bnx2x_dcbnl_get_pg_bwgcfg_tx,
2509 .getpgtccfgrx = bnx2x_dcbnl_get_pg_tccfg_rx,
2510 .getpgbwgcfgrx = bnx2x_dcbnl_get_pg_bwgcfg_rx,
2511 .setpfccfg = bnx2x_dcbnl_set_pfc_cfg,
2512 .getpfccfg = bnx2x_dcbnl_get_pfc_cfg,
2513 .setall = bnx2x_dcbnl_set_all,
2514 .getcap = bnx2x_dcbnl_get_cap,
2515 .getnumtcs = bnx2x_dcbnl_get_numtcs,
2516 .setnumtcs = bnx2x_dcbnl_set_numtcs,
2517 .getpfcstate = bnx2x_dcbnl_get_pfc_state,
2518 .setpfcstate = bnx2x_dcbnl_set_pfc_state,
2519 .setapp = bnx2x_dcbnl_set_app_up,
2520 .getdcbx = bnx2x_dcbnl_get_dcbx,
2521 .setdcbx = bnx2x_dcbnl_set_dcbx,
2522 .getfeatcfg = bnx2x_dcbnl_get_featcfg,
2523 .setfeatcfg = bnx2x_dcbnl_set_featcfg,
2524 .peer_getappinfo = bnx2x_peer_appinfo,
2525 .peer_getapptable = bnx2x_peer_apptable,
2526 .cee_peer_getpg = bnx2x_cee_peer_getpg,
2527 .cee_peer_getpfc = bnx2x_cee_peer_getpfc,
2530 #endif /* BCM_DCBNL */