drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c

   1 /* bnx2x_sp.c: Broadcom Everest network driver.
   2  *
   3  * Copyright (c) 2011-2012 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: Vladislav Zolotarov
  17  *
  18  */
  19
  20 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  21
  22 #include <linux/module.h>
  23 #include <linux/crc32.h>
  24 #include <linux/netdevice.h>
  25 #include <linux/etherdevice.h>
  26 #include <linux/crc32c.h>
  27 #include "bnx2x.h"
  28 #include "bnx2x_cmn.h"
  29 #include "bnx2x_sp.h"
  30
  31 #define BNX2X_MAX_EMUL_MULTI            16
  32
  33 #define MAC_LEADING_ZERO_CNT (ALIGN(ETH_ALEN, sizeof(u32)) - ETH_ALEN)
  34
  35 /**** Exe Queue interfaces ****/
  36
  37 /**
  38  * bnx2x_exe_queue_init - init the Exe Queue object
  39  *
  40  * @o:          poiter to the object
  41  * @exe_len:    length
  42  * @owner:      poiter to the owner
  43  * @validate:   validate function pointer
  44  * @optimize:   optimize function pointer
  45  * @exec:       execute function pointer
  46  * @get:        get function pointer
  47  */
  48 static inline void bnx2x_exe_queue_init(struct bnx2x *bp,
  49                                         struct bnx2x_exe_queue_obj *o,
  50                                         int exe_len,
  51                                         union bnx2x_qable_obj *owner,
  52                                         exe_q_validate validate,
  53                                         exe_q_remove remove,
  54                                         exe_q_optimize optimize,
  55                                         exe_q_execute exec,
  56                                         exe_q_get get)
  57 {
  58         memset(o, 0, sizeof(*o));
  59
  60         INIT_LIST_HEAD(&o->exe_queue);
  61         INIT_LIST_HEAD(&o->pending_comp);
  62
  63         spin_lock_init(&o->lock);
  64
  65         o->exe_chunk_len = exe_len;
  66         o->owner         = owner;
  67
  68         /* Owner specific callbacks */
  69         o->validate      = validate;
  70         o->remove        = remove;
  71         o->optimize      = optimize;
  72         o->execute       = exec;
  73         o->get           = get;
  74
  75         DP(BNX2X_MSG_SP, "Setup the execution queue with the chunk length of %d\n",
  76            exe_len);
  77 }
  78
  79 static inline void bnx2x_exe_queue_free_elem(struct bnx2x *bp,
  80                                              struct bnx2x_exeq_elem *elem)
  81 {
  82         DP(BNX2X_MSG_SP, "Deleting an exe_queue element\n");
  83         kfree(elem);
  84 }
  85
  86 static inline int bnx2x_exe_queue_length(struct bnx2x_exe_queue_obj *o)
  87 {
  88         struct bnx2x_exeq_elem *elem;
  89         int cnt = 0;
  90
  91         spin_lock_bh(&o->lock);
  92
  93         list_for_each_entry(elem, &o->exe_queue, link)
  94                 cnt++;
  95
  96         spin_unlock_bh(&o->lock);
  97
  98         return cnt;
  99 }
 100
 101 /**
 102  * bnx2x_exe_queue_add - add a new element to the execution queue
 103  *
 104  * @bp:         driver handle
 105  * @o:          queue
 106  * @cmd:        new command to add
 107  * @restore:    true - do not optimize the command
 108  *
 109  * If the element is optimized or is illegal, frees it.
 110  */
 111 static inline int bnx2x_exe_queue_add(struct bnx2x *bp,
 112                                       struct bnx2x_exe_queue_obj *o,
 113                                       struct bnx2x_exeq_elem *elem,
 114                                       bool restore)
 115 {
 116         int rc;
 117
 118         spin_lock_bh(&o->lock);
 119
 120         if (!restore) {
 121                 /* Try to cancel this element queue */
 122                 rc = o->optimize(bp, o->owner, elem);
 123                 if (rc)
 124                         goto free_and_exit;
 125
 126                 /* Check if this request is ok */
 127                 rc = o->validate(bp, o->owner, elem);
 128                 if (rc) {
 129                         BNX2X_ERR("Preamble failed: %d\n", rc);
 130                         goto free_and_exit;
 131                 }
 132         }
 133
 134         /* If so, add it to the execution queue */
 135         list_add_tail(&elem->link, &o->exe_queue);
 136
 137         spin_unlock_bh(&o->lock);
 138
 139         return 0;
 140
 141 free_and_exit:
 142         bnx2x_exe_queue_free_elem(bp, elem);
 143
 144         spin_unlock_bh(&o->lock);
 145
 146         return rc;
 147
 148 }
 149
 150 static inline void __bnx2x_exe_queue_reset_pending(
 151         struct bnx2x *bp,
 152         struct bnx2x_exe_queue_obj *o)
 153 {
 154         struct bnx2x_exeq_elem *elem;
 155
 156         while (!list_empty(&o->pending_comp)) {
 157                 elem = list_first_entry(&o->pending_comp,
 158                                         struct bnx2x_exeq_elem, link);
 159
 160                 list_del(&elem->link);
 161                 bnx2x_exe_queue_free_elem(bp, elem);
 162         }
 163 }
 164
 165 static inline void bnx2x_exe_queue_reset_pending(struct bnx2x *bp,
 166                                                  struct bnx2x_exe_queue_obj *o)
 167 {
 168
 169         spin_lock_bh(&o->lock);
 170
 171         __bnx2x_exe_queue_reset_pending(bp, o);
 172
 173         spin_unlock_bh(&o->lock);
 174
 175 }
 176
 177 /**
 178  * bnx2x_exe_queue_step - execute one execution chunk atomically
 179  *
 180  * @bp:                 driver handle
 181  * @o:                  queue
 182  * @ramrod_flags:       flags
 183  *
 184  * (Atomicy is ensured using the exe_queue->lock).
 185  */
 186 static inline int bnx2x_exe_queue_step(struct bnx2x *bp,
 187                                        struct bnx2x_exe_queue_obj *o,
 188                                        unsigned long *ramrod_flags)
 189 {
 190         struct bnx2x_exeq_elem *elem, spacer;
 191         int cur_len = 0, rc;
 192
 193         memset(&spacer, 0, sizeof(spacer));
 194
 195         spin_lock_bh(&o->lock);
 196
 197         /*
 198          * Next step should not be performed until the current is finished,
 199          * unless a DRV_CLEAR_ONLY bit is set. In this case we just want to
 200          * properly clear object internals without sending any command to the FW
 201          * which also implies there won't be any completion to clear the
 202          * 'pending' list.
 203          */
 204         if (!list_empty(&o->pending_comp)) {
 205                 if (test_bit(RAMROD_DRV_CLR_ONLY, ramrod_flags)) {
 206                         DP(BNX2X_MSG_SP, "RAMROD_DRV_CLR_ONLY requested: resetting a pending_comp list\n");
 207                         __bnx2x_exe_queue_reset_pending(bp, o);
 208                 } else {
 209                         spin_unlock_bh(&o->lock);
 210                         return 1;
 211                 }
 212         }
 213
 214         /*
 215          * Run through the pending commands list and create a next
 216          * execution chunk.
 217          */
 218         while (!list_empty(&o->exe_queue)) {
 219                 elem = list_first_entry(&o->exe_queue, struct bnx2x_exeq_elem,
 220                                         link);
 221                 WARN_ON(!elem->cmd_len);
 222
 223                 if (cur_len + elem->cmd_len <= o->exe_chunk_len) {
 224                         cur_len += elem->cmd_len;
 225                         /*
 226                          * Prevent from both lists being empty when moving an
 227                          * element. This will allow the call of
 228                          * bnx2x_exe_queue_empty() without locking.
 229                          */
 230                         list_add_tail(&spacer.link, &o->pending_comp);
 231                         mb();
 232                         list_del(&elem->link);
 233                         list_add_tail(&elem->link, &o->pending_comp);
 234                         list_del(&spacer.link);
 235                 } else
 236                         break;
 237         }
 238
 239         /* Sanity check */
 240         if (!cur_len) {
 241                 spin_unlock_bh(&o->lock);
 242                 return 0;
 243         }
 244
 245         rc = o->execute(bp, o->owner, &o->pending_comp, ramrod_flags);
 246         if (rc < 0)
 247                 /*
 248                  *  In case of an error return the commands back to the queue
 249                  *  and reset the pending_comp.
 250                  */
 251                 list_splice_init(&o->pending_comp, &o->exe_queue);
 252         else if (!rc)
 253                 /*
 254                  * If zero is returned, means there are no outstanding pending
 255                  * completions and we may dismiss the pending list.
 256                  */
 257                 __bnx2x_exe_queue_reset_pending(bp, o);
 258
 259         spin_unlock_bh(&o->lock);
 260         return rc;
 261 }
 262
 263 static inline bool bnx2x_exe_queue_empty(struct bnx2x_exe_queue_obj *o)
 264 {
 265         bool empty = list_empty(&o->exe_queue);
 266
 267         /* Don't reorder!!! */
 268         mb();
 269
 270         return empty && list_empty(&o->pending_comp);
 271 }
 272
 273 static inline struct bnx2x_exeq_elem *bnx2x_exe_queue_alloc_elem(
 274         struct bnx2x *bp)
 275 {
 276         DP(BNX2X_MSG_SP, "Allocating a new exe_queue element\n");
 277         return kzalloc(sizeof(struct bnx2x_exeq_elem), GFP_ATOMIC);
 278 }
 279
 280 /************************ raw_obj functions ***********************************/
 281 static bool bnx2x_raw_check_pending(struct bnx2x_raw_obj *o)
 282 {
 283         return !!test_bit(o->state, o->pstate);
 284 }
 285
 286 static void bnx2x_raw_clear_pending(struct bnx2x_raw_obj *o)
 287 {
 288         smp_mb__before_clear_bit();
 289         clear_bit(o->state, o->pstate);
 290         smp_mb__after_clear_bit();
 291 }
 292
 293 static void bnx2x_raw_set_pending(struct bnx2x_raw_obj *o)
 294 {
 295         smp_mb__before_clear_bit();
 296         set_bit(o->state, o->pstate);
 297         smp_mb__after_clear_bit();
 298 }
 299
 300 /**
 301  * bnx2x_state_wait - wait until the given bit(state) is cleared
 302  *
 303  * @bp:         device handle
 304  * @state:      state which is to be cleared
 305  * @state_p:    state buffer
 306  *
 307  */
 308 static inline int bnx2x_state_wait(struct bnx2x *bp, int state,
 309                                    unsigned long *pstate)
 310 {
 311         /* can take a while if any port is running */
 312         int cnt = 5000;
 313
 314
 315         if (CHIP_REV_IS_EMUL(bp))
 316                 cnt *= 20;
 317
 318         DP(BNX2X_MSG_SP, "waiting for state to become %d\n", state);
 319
 320         might_sleep();
 321         while (cnt--) {
 322                 if (!test_bit(state, pstate)) {
 323 #ifdef BNX2X_STOP_ON_ERROR
 324                         DP(BNX2X_MSG_SP, "exit  (cnt %d)\n", 5000 - cnt);
 325 #endif
 326                         return 0;
 327                 }
 328
 329                 usleep_range(1000, 1000);
 330
 331                 if (bp->panic)
 332                         return -EIO;
 333         }
 334
 335         /* timeout! */
 336         BNX2X_ERR("timeout waiting for state %d\n", state);
 337 #ifdef BNX2X_STOP_ON_ERROR
 338         bnx2x_panic();
 339 #endif
 340
 341         return -EBUSY;
 342 }
 343
 344 static int bnx2x_raw_wait(struct bnx2x *bp, struct bnx2x_raw_obj *raw)
 345 {
 346         return bnx2x_state_wait(bp, raw->state, raw->pstate);
 347 }
 348
 349 /***************** Classification verbs: Set/Del MAC/VLAN/VLAN-MAC ************/
 350 /* credit handling callbacks */
 351 static bool bnx2x_get_cam_offset_mac(struct bnx2x_vlan_mac_obj *o, int *offset)
 352 {
 353         struct bnx2x_credit_pool_obj *mp = o->macs_pool;
 354
 355         WARN_ON(!mp);
 356
 357         return mp->get_entry(mp, offset);
 358 }
 359
 360 static bool bnx2x_get_credit_mac(struct bnx2x_vlan_mac_obj *o)
 361 {
 362         struct bnx2x_credit_pool_obj *mp = o->macs_pool;
 363
 364         WARN_ON(!mp);
 365
 366         return mp->get(mp, 1);
 367 }
 368
 369 static bool bnx2x_get_cam_offset_vlan(struct bnx2x_vlan_mac_obj *o, int *offset)
 370 {
 371         struct bnx2x_credit_pool_obj *vp = o->vlans_pool;
 372
 373         WARN_ON(!vp);
 374
 375         return vp->get_entry(vp, offset);
 376 }
 377
 378 static bool bnx2x_get_credit_vlan(struct bnx2x_vlan_mac_obj *o)
 379 {
 380         struct bnx2x_credit_pool_obj *vp = o->vlans_pool;
 381
 382         WARN_ON(!vp);
 383
 384         return vp->get(vp, 1);
 385 }
 386
 387 static bool bnx2x_get_credit_vlan_mac(struct bnx2x_vlan_mac_obj *o)
 388 {
 389         struct bnx2x_credit_pool_obj *mp = o->macs_pool;
 390         struct bnx2x_credit_pool_obj *vp = o->vlans_pool;
 391
 392         if (!mp->get(mp, 1))
 393                 return false;
 394
 395         if (!vp->get(vp, 1)) {
 396                 mp->put(mp, 1);
 397                 return false;
 398         }
 399
 400         return true;
 401 }
 402
 403 static bool bnx2x_put_cam_offset_mac(struct bnx2x_vlan_mac_obj *o, int offset)
 404 {
 405         struct bnx2x_credit_pool_obj *mp = o->macs_pool;
 406
 407         return mp->put_entry(mp, offset);
 408 }
 409
 410 static bool bnx2x_put_credit_mac(struct bnx2x_vlan_mac_obj *o)
 411 {
 412         struct bnx2x_credit_pool_obj *mp = o->macs_pool;
 413
 414         return mp->put(mp, 1);
 415 }
 416
 417 static bool bnx2x_put_cam_offset_vlan(struct bnx2x_vlan_mac_obj *o, int offset)
 418 {
 419         struct bnx2x_credit_pool_obj *vp = o->vlans_pool;
 420
 421         return vp->put_entry(vp, offset);
 422 }
 423
 424 static bool bnx2x_put_credit_vlan(struct bnx2x_vlan_mac_obj *o)
 425 {
 426         struct bnx2x_credit_pool_obj *vp = o->vlans_pool;
 427
 428         return vp->put(vp, 1);
 429 }
 430
 431 static bool bnx2x_put_credit_vlan_mac(struct bnx2x_vlan_mac_obj *o)
 432 {
 433         struct bnx2x_credit_pool_obj *mp = o->macs_pool;
 434         struct bnx2x_credit_pool_obj *vp = o->vlans_pool;
 435
 436         if (!mp->put(mp, 1))
 437                 return false;
 438
 439         if (!vp->put(vp, 1)) {
 440                 mp->get(mp, 1);
 441                 return false;
 442         }
 443
 444         return true;
 445 }
 446
 447 static int bnx2x_get_n_elements(struct bnx2x *bp, struct bnx2x_vlan_mac_obj *o,
 448                                 int n, u8 *buf)
 449 {
 450         struct bnx2x_vlan_mac_registry_elem *pos;
 451         u8 *next = buf;
 452         int counter = 0;
 453
 454         /* traverse list */
 455         list_for_each_entry(pos, &o->head, link) {
 456                 if (counter < n) {
 457                         /* place leading zeroes in buffer */
 458                         memset(next, 0, MAC_LEADING_ZERO_CNT);
 459
 460                         /* place mac after leading zeroes*/
 461                         memcpy(next + MAC_LEADING_ZERO_CNT, pos->u.mac.mac,
 462                                ETH_ALEN);
 463
 464                         /* calculate address of next element and
 465                          * advance counter
 466                          */
 467                         counter++;
 468                         next = buf + counter * ALIGN(ETH_ALEN, sizeof(u32));
 469
 470                         DP(BNX2X_MSG_SP, "copied element number %d to address %p element was %pM\n",
 471                            counter, next, pos->u.mac.mac);
 472                 }
 473         }
 474         return counter * ETH_ALEN;
 475 }
 476
 477 /* check_add() callbacks */
 478 static int bnx2x_check_mac_add(struct bnx2x *bp,
 479                                struct bnx2x_vlan_mac_obj *o,
 480                                union bnx2x_classification_ramrod_data *data)
 481 {
 482         struct bnx2x_vlan_mac_registry_elem *pos;
 483
 484         DP(BNX2X_MSG_SP, "Checking MAC %pM for ADD command\n", data->mac.mac);
 485
 486         if (!is_valid_ether_addr(data->mac.mac))
 487                 return -EINVAL;
 488
 489         /* Check if a requested MAC already exists */
 490         list_for_each_entry(pos, &o->head, link)
 491                 if (!memcmp(data->mac.mac, pos->u.mac.mac, ETH_ALEN))
 492                         return -EEXIST;
 493
 494         return 0;
 495 }
 496
 497 static int bnx2x_check_vlan_add(struct bnx2x *bp,
 498                                 struct bnx2x_vlan_mac_obj *o,
 499                                 union bnx2x_classification_ramrod_data *data)
 500 {
 501         struct bnx2x_vlan_mac_registry_elem *pos;
 502
 503         DP(BNX2X_MSG_SP, "Checking VLAN %d for ADD command\n", data->vlan.vlan);
 504
 505         list_for_each_entry(pos, &o->head, link)
 506                 if (data->vlan.vlan == pos->u.vlan.vlan)
 507                         return -EEXIST;
 508
 509         return 0;
 510 }
 511
 512 static int bnx2x_check_vlan_mac_add(struct bnx2x *bp,
 513                                     struct bnx2x_vlan_mac_obj *o,
 514                                    union bnx2x_classification_ramrod_data *data)
 515 {
 516         struct bnx2x_vlan_mac_registry_elem *pos;
 517
 518         DP(BNX2X_MSG_SP, "Checking VLAN_MAC (%pM, %d) for ADD command\n",
 519            data->vlan_mac.mac, data->vlan_mac.vlan);
 520
 521         list_for_each_entry(pos, &o->head, link)
 522                 if ((data->vlan_mac.vlan == pos->u.vlan_mac.vlan) &&
 523                     (!memcmp(data->vlan_mac.mac, pos->u.vlan_mac.mac,
 524                              ETH_ALEN)))
 525                         return -EEXIST;
 526
 527         return 0;
 528 }
 529
 530
 531 /* check_del() callbacks */
 532 static struct bnx2x_vlan_mac_registry_elem *
 533         bnx2x_check_mac_del(struct bnx2x *bp,
 534                             struct bnx2x_vlan_mac_obj *o,
 535                             union bnx2x_classification_ramrod_data *data)
 536 {
 537         struct bnx2x_vlan_mac_registry_elem *pos;
 538
 539         DP(BNX2X_MSG_SP, "Checking MAC %pM for DEL command\n", data->mac.mac);
 540
 541         list_for_each_entry(pos, &o->head, link)
 542                 if (!memcmp(data->mac.mac, pos->u.mac.mac, ETH_ALEN))
 543                         return pos;
 544
 545         return NULL;
 546 }
 547
 548 static struct bnx2x_vlan_mac_registry_elem *
 549         bnx2x_check_vlan_del(struct bnx2x *bp,
 550                              struct bnx2x_vlan_mac_obj *o,
 551                              union bnx2x_classification_ramrod_data *data)
 552 {
 553         struct bnx2x_vlan_mac_registry_elem *pos;
 554
 555         DP(BNX2X_MSG_SP, "Checking VLAN %d for DEL command\n", data->vlan.vlan);
 556
 557         list_for_each_entry(pos, &o->head, link)
 558                 if (data->vlan.vlan == pos->u.vlan.vlan)
 559                         return pos;
 560
 561         return NULL;
 562 }
 563
 564 static struct bnx2x_vlan_mac_registry_elem *
 565         bnx2x_check_vlan_mac_del(struct bnx2x *bp,
 566                                  struct bnx2x_vlan_mac_obj *o,
 567                                  union bnx2x_classification_ramrod_data *data)
 568 {
 569         struct bnx2x_vlan_mac_registry_elem *pos;
 570
 571         DP(BNX2X_MSG_SP, "Checking VLAN_MAC (%pM, %d) for DEL command\n",
 572            data->vlan_mac.mac, data->vlan_mac.vlan);
 573
 574         list_for_each_entry(pos, &o->head, link)
 575                 if ((data->vlan_mac.vlan == pos->u.vlan_mac.vlan) &&
 576                     (!memcmp(data->vlan_mac.mac, pos->u.vlan_mac.mac,
 577                              ETH_ALEN)))
 578                         return pos;
 579
 580         return NULL;
 581 }
 582
 583 /* check_move() callback */
 584 static bool bnx2x_check_move(struct bnx2x *bp,
 585                              struct bnx2x_vlan_mac_obj *src_o,
 586                              struct bnx2x_vlan_mac_obj *dst_o,
 587                              union bnx2x_classification_ramrod_data *data)
 588 {
 589         struct bnx2x_vlan_mac_registry_elem *pos;
 590         int rc;
 591
 592         /* Check if we can delete the requested configuration from the first
 593          * object.
 594          */
 595         pos = src_o->check_del(bp, src_o, data);
 596
 597         /*  check if configuration can be added */
 598         rc = dst_o->check_add(bp, dst_o, data);
 599
 600         /* If this classification can not be added (is already set)
 601          * or can't be deleted - return an error.
 602          */
 603         if (rc || !pos)
 604                 return false;
 605
 606         return true;
 607 }
 608
 609 static bool bnx2x_check_move_always_err(
 610         struct bnx2x *bp,
 611         struct bnx2x_vlan_mac_obj *src_o,
 612         struct bnx2x_vlan_mac_obj *dst_o,
 613         union bnx2x_classification_ramrod_data *data)
 614 {
 615         return false;
 616 }
 617
 618
 619 static inline u8 bnx2x_vlan_mac_get_rx_tx_flag(struct bnx2x_vlan_mac_obj *o)
 620 {
 621         struct bnx2x_raw_obj *raw = &o->raw;
 622         u8 rx_tx_flag = 0;
 623
 624         if ((raw->obj_type == BNX2X_OBJ_TYPE_TX) ||
 625             (raw->obj_type == BNX2X_OBJ_TYPE_RX_TX))
 626                 rx_tx_flag |= ETH_CLASSIFY_CMD_HEADER_TX_CMD;
 627
 628         if ((raw->obj_type == BNX2X_OBJ_TYPE_RX) ||
 629             (raw->obj_type == BNX2X_OBJ_TYPE_RX_TX))
 630                 rx_tx_flag |= ETH_CLASSIFY_CMD_HEADER_RX_CMD;
 631
 632         return rx_tx_flag;
 633 }
 634
 635
 636 void bnx2x_set_mac_in_nig(struct bnx2x *bp,
 637                           bool add, unsigned char *dev_addr, int index)
 638 {
 639         u32 wb_data[2];
 640         u32 reg_offset = BP_PORT(bp) ? NIG_REG_LLH1_FUNC_MEM :
 641                          NIG_REG_LLH0_FUNC_MEM;
 642
 643         if (!IS_MF_SI(bp) && !IS_MF_AFEX(bp))
 644                 return;
 645
 646         if (index > BNX2X_LLH_CAM_MAX_PF_LINE)
 647                 return;
 648
 649         DP(BNX2X_MSG_SP, "Going to %s LLH configuration at entry %d\n",
 650                          (add ? "ADD" : "DELETE"), index);
 651
 652         if (add) {
 653                 /* LLH_FUNC_MEM is a u64 WB register */
 654                 reg_offset += 8*index;
 655
 656                 wb_data[0] = ((dev_addr[2] << 24) | (dev_addr[3] << 16) |
 657                               (dev_addr[4] <<  8) |  dev_addr[5]);
 658                 wb_data[1] = ((dev_addr[0] <<  8) |  dev_addr[1]);
 659
 660                 REG_WR_DMAE(bp, reg_offset, wb_data, 2);
 661         }
 662
 663         REG_WR(bp, (BP_PORT(bp) ? NIG_REG_LLH1_FUNC_MEM_ENABLE :
 664                                   NIG_REG_LLH0_FUNC_MEM_ENABLE) + 4*index, add);
 665 }
 666
 667 /**
 668  * bnx2x_vlan_mac_set_cmd_hdr_e2 - set a header in a single classify ramrod
 669  *
 670  * @bp:         device handle
 671  * @o:          queue for which we want to configure this rule
 672  * @add:        if true the command is an ADD command, DEL otherwise
 673  * @opcode:     CLASSIFY_RULE_OPCODE_XXX
 674  * @hdr:        pointer to a header to setup
 675  *
 676  */
 677 static inline void bnx2x_vlan_mac_set_cmd_hdr_e2(struct bnx2x *bp,
 678         struct bnx2x_vlan_mac_obj *o, bool add, int opcode,
 679         struct eth_classify_cmd_header *hdr)
 680 {
 681         struct bnx2x_raw_obj *raw = &o->raw;
 682
 683         hdr->client_id = raw->cl_id;
 684         hdr->func_id = raw->func_id;
 685
 686         /* Rx or/and Tx (internal switching) configuration ? */
 687         hdr->cmd_general_data |=
 688                 bnx2x_vlan_mac_get_rx_tx_flag(o);
 689
 690         if (add)
 691                 hdr->cmd_general_data |= ETH_CLASSIFY_CMD_HEADER_IS_ADD;
 692
 693         hdr->cmd_general_data |=
 694                 (opcode << ETH_CLASSIFY_CMD_HEADER_OPCODE_SHIFT);
 695 }
 696
 697 /**
 698  * bnx2x_vlan_mac_set_rdata_hdr_e2 - set the classify ramrod data header
 699  *
 700  * @cid:        connection id
 701  * @type:       BNX2X_FILTER_XXX_PENDING
 702  * @hdr:        poiter to header to setup
 703  * @rule_cnt:
 704  *
 705  * currently we always configure one rule and echo field to contain a CID and an
 706  * opcode type.
 707  */
 708 static inline void bnx2x_vlan_mac_set_rdata_hdr_e2(u32 cid, int type,
 709                                 struct eth_classify_header *hdr, int rule_cnt)
 710 {
 711         hdr->echo = (cid & BNX2X_SWCID_MASK) | (type << BNX2X_SWCID_SHIFT);
 712         hdr->rule_cnt = (u8)rule_cnt;
 713 }
 714
 715
 716 /* hw_config() callbacks */
 717 static void bnx2x_set_one_mac_e2(struct bnx2x *bp,
 718                                  struct bnx2x_vlan_mac_obj *o,
 719                                  struct bnx2x_exeq_elem *elem, int rule_idx,
 720                                  int cam_offset)
 721 {
 722         struct bnx2x_raw_obj *raw = &o->raw;
 723         struct eth_classify_rules_ramrod_data *data =
 724                 (struct eth_classify_rules_ramrod_data *)(raw->rdata);
 725         int rule_cnt = rule_idx + 1, cmd = elem->cmd_data.vlan_mac.cmd;
 726         union eth_classify_rule_cmd *rule_entry = &data->rules[rule_idx];
 727         bool add = (cmd == BNX2X_VLAN_MAC_ADD) ? true : false;
 728         unsigned long *vlan_mac_flags = &elem->cmd_data.vlan_mac.vlan_mac_flags;
 729         u8 *mac = elem->cmd_data.vlan_mac.u.mac.mac;
 730
 731         /*
 732          * Set LLH CAM entry: currently only iSCSI and ETH macs are
 733          * relevant. In addition, current implementation is tuned for a
 734          * single ETH MAC.
 735          *
 736          * When multiple unicast ETH MACs PF configuration in switch
 737          * independent mode is required (NetQ, multiple netdev MACs,
 738          * etc.), consider better utilisation of 8 per function MAC
 739          * entries in the LLH register. There is also
 740          * NIG_REG_P[01]_LLH_FUNC_MEM2 registers that complete the
 741          * total number of CAM entries to 16.
 742          *
 743          * Currently we won't configure NIG for MACs other than a primary ETH
 744          * MAC and iSCSI L2 MAC.
 745          *
 746          * If this MAC is moving from one Queue to another, no need to change
 747          * NIG configuration.
 748          */
 749         if (cmd != BNX2X_VLAN_MAC_MOVE) {
 750                 if (test_bit(BNX2X_ISCSI_ETH_MAC, vlan_mac_flags))
 751                         bnx2x_set_mac_in_nig(bp, add, mac,
 752                                              BNX2X_LLH_CAM_ISCSI_ETH_LINE);
 753                 else if (test_bit(BNX2X_ETH_MAC, vlan_mac_flags))
 754                         bnx2x_set_mac_in_nig(bp, add, mac,
 755                                              BNX2X_LLH_CAM_ETH_LINE);
 756         }
 757
 758         /* Reset the ramrod data buffer for the first rule */
 759         if (rule_idx == 0)
 760                 memset(data, 0, sizeof(*data));
 761
 762         /* Setup a command header */
 763         bnx2x_vlan_mac_set_cmd_hdr_e2(bp, o, add, CLASSIFY_RULE_OPCODE_MAC,
 764                                       &rule_entry->mac.header);
 765
 766         DP(BNX2X_MSG_SP, "About to %s MAC %pM for Queue %d\n",
 767            (add ? "add" : "delete"), mac, raw->cl_id);
 768
 769         /* Set a MAC itself */
 770         bnx2x_set_fw_mac_addr(&rule_entry->mac.mac_msb,
 771                               &rule_entry->mac.mac_mid,
 772                               &rule_entry->mac.mac_lsb, mac);
 773
 774         /* MOVE: Add a rule that will add this MAC to the target Queue */
 775         if (cmd == BNX2X_VLAN_MAC_MOVE) {
 776                 rule_entry++;
 777                 rule_cnt++;
 778
 779                 /* Setup ramrod data */
 780                 bnx2x_vlan_mac_set_cmd_hdr_e2(bp,
 781                                         elem->cmd_data.vlan_mac.target_obj,
 782                                               true, CLASSIFY_RULE_OPCODE_MAC,
 783                                               &rule_entry->mac.header);
 784
 785                 /* Set a MAC itself */
 786                 bnx2x_set_fw_mac_addr(&rule_entry->mac.mac_msb,
 787                                       &rule_entry->mac.mac_mid,
 788                                       &rule_entry->mac.mac_lsb, mac);
 789         }
 790
 791         /* Set the ramrod data header */
 792         /* TODO: take this to the higher level in order to prevent multiple
 793                  writing */
 794         bnx2x_vlan_mac_set_rdata_hdr_e2(raw->cid, raw->state, &data->header,
 795                                         rule_cnt);
 796 }
 797
 798 /**
 799  * bnx2x_vlan_mac_set_rdata_hdr_e1x - set a header in a single classify ramrod
 800  *
 801  * @bp:         device handle
 802  * @o:          queue
 803  * @type:
 804  * @cam_offset: offset in cam memory
 805  * @hdr:        pointer to a header to setup
 806  *
 807  * E1/E1H
 808  */
 809 static inline void bnx2x_vlan_mac_set_rdata_hdr_e1x(struct bnx2x *bp,
 810         struct bnx2x_vlan_mac_obj *o, int type, int cam_offset,
 811         struct mac_configuration_hdr *hdr)
 812 {
 813         struct bnx2x_raw_obj *r = &o->raw;
 814
 815         hdr->length = 1;
 816         hdr->offset = (u8)cam_offset;
 817         hdr->client_id = 0xff;
 818         hdr->echo = ((r->cid & BNX2X_SWCID_MASK) | (type << BNX2X_SWCID_SHIFT));
 819 }
 820
 821 static inline void bnx2x_vlan_mac_set_cfg_entry_e1x(struct bnx2x *bp,
 822         struct bnx2x_vlan_mac_obj *o, bool add, int opcode, u8 *mac,
 823         u16 vlan_id, struct mac_configuration_entry *cfg_entry)
 824 {
 825         struct bnx2x_raw_obj *r = &o->raw;
 826         u32 cl_bit_vec = (1 << r->cl_id);
 827
 828         cfg_entry->clients_bit_vector = cpu_to_le32(cl_bit_vec);
 829         cfg_entry->pf_id = r->func_id;
 830         cfg_entry->vlan_id = cpu_to_le16(vlan_id);
 831
 832         if (add) {
 833                 SET_FLAG(cfg_entry->flags, MAC_CONFIGURATION_ENTRY_ACTION_TYPE,
 834                          T_ETH_MAC_COMMAND_SET);
 835                 SET_FLAG(cfg_entry->flags,
 836                          MAC_CONFIGURATION_ENTRY_VLAN_FILTERING_MODE, opcode);
 837
 838                 /* Set a MAC in a ramrod data */
 839                 bnx2x_set_fw_mac_addr(&cfg_entry->msb_mac_addr,
 840                                       &cfg_entry->middle_mac_addr,
 841                                       &cfg_entry->lsb_mac_addr, mac);
 842         } else
 843                 SET_FLAG(cfg_entry->flags, MAC_CONFIGURATION_ENTRY_ACTION_TYPE,
 844                          T_ETH_MAC_COMMAND_INVALIDATE);
 845 }
 846
 847 static inline void bnx2x_vlan_mac_set_rdata_e1x(struct bnx2x *bp,
 848         struct bnx2x_vlan_mac_obj *o, int type, int cam_offset, bool add,
 849         u8 *mac, u16 vlan_id, int opcode, struct mac_configuration_cmd *config)
 850 {
 851         struct mac_configuration_entry *cfg_entry = &config->config_table[0];
 852         struct bnx2x_raw_obj *raw = &o->raw;
 853
 854         bnx2x_vlan_mac_set_rdata_hdr_e1x(bp, o, type, cam_offset,
 855                                          &config->hdr);
 856         bnx2x_vlan_mac_set_cfg_entry_e1x(bp, o, add, opcode, mac, vlan_id,
 857                                          cfg_entry);
 858
 859         DP(BNX2X_MSG_SP, "%s MAC %pM CLID %d CAM offset %d\n",
 860                          (add ? "setting" : "clearing"),
 861                          mac, raw->cl_id, cam_offset);
 862 }
 863
 864 /**
 865  * bnx2x_set_one_mac_e1x - fill a single MAC rule ramrod data
 866  *
 867  * @bp:         device handle
 868  * @o:          bnx2x_vlan_mac_obj
 869  * @elem:       bnx2x_exeq_elem
 870  * @rule_idx:   rule_idx
 871  * @cam_offset: cam_offset
 872  */
 873 static void bnx2x_set_one_mac_e1x(struct bnx2x *bp,
 874                                   struct bnx2x_vlan_mac_obj *o,
 875                                   struct bnx2x_exeq_elem *elem, int rule_idx,
 876                                   int cam_offset)
 877 {
 878         struct bnx2x_raw_obj *raw = &o->raw;
 879         struct mac_configuration_cmd *config =
 880                 (struct mac_configuration_cmd *)(raw->rdata);
 881         /*
 882          * 57710 and 57711 do not support MOVE command,
 883          * so it's either ADD or DEL
 884          */
 885         bool add = (elem->cmd_data.vlan_mac.cmd == BNX2X_VLAN_MAC_ADD) ?
 886                 true : false;
 887
 888         /* Reset the ramrod data buffer */
 889         memset(config, 0, sizeof(*config));
 890
 891         bnx2x_vlan_mac_set_rdata_e1x(bp, o, raw->state,
 892                                      cam_offset, add,
 893                                      elem->cmd_data.vlan_mac.u.mac.mac, 0,
 894                                      ETH_VLAN_FILTER_ANY_VLAN, config);
 895 }
 896
 897 static void bnx2x_set_one_vlan_e2(struct bnx2x *bp,
 898                                   struct bnx2x_vlan_mac_obj *o,
 899                                   struct bnx2x_exeq_elem *elem, int rule_idx,
 900                                   int cam_offset)
 901 {
 902         struct bnx2x_raw_obj *raw = &o->raw;
 903         struct eth_classify_rules_ramrod_data *data =
 904                 (struct eth_classify_rules_ramrod_data *)(raw->rdata);
 905         int rule_cnt = rule_idx + 1;
 906         union eth_classify_rule_cmd *rule_entry = &data->rules[rule_idx];
 907         int cmd = elem->cmd_data.vlan_mac.cmd;
 908         bool add = (cmd == BNX2X_VLAN_MAC_ADD) ? true : false;
 909         u16 vlan = elem->cmd_data.vlan_mac.u.vlan.vlan;
 910
 911         /* Reset the ramrod data buffer for the first rule */
 912         if (rule_idx == 0)
 913                 memset(data, 0, sizeof(*data));
 914
 915         /* Set a rule header */
 916         bnx2x_vlan_mac_set_cmd_hdr_e2(bp, o, add, CLASSIFY_RULE_OPCODE_VLAN,
 917                                       &rule_entry->vlan.header);
 918
 919         DP(BNX2X_MSG_SP, "About to %s VLAN %d\n", (add ? "add" : "delete"),
 920                          vlan);
 921
 922         /* Set a VLAN itself */
 923         rule_entry->vlan.vlan = cpu_to_le16(vlan);
 924
 925         /* MOVE: Add a rule that will add this MAC to the target Queue */
 926         if (cmd == BNX2X_VLAN_MAC_MOVE) {
 927                 rule_entry++;
 928                 rule_cnt++;
 929
 930                 /* Setup ramrod data */
 931                 bnx2x_vlan_mac_set_cmd_hdr_e2(bp,
 932                                         elem->cmd_data.vlan_mac.target_obj,
 933                                               true, CLASSIFY_RULE_OPCODE_VLAN,
 934                                               &rule_entry->vlan.header);
 935
 936                 /* Set a VLAN itself */
 937                 rule_entry->vlan.vlan = cpu_to_le16(vlan);
 938         }
 939
 940         /* Set the ramrod data header */
 941         /* TODO: take this to the higher level in order to prevent multiple
 942                  writing */
 943         bnx2x_vlan_mac_set_rdata_hdr_e2(raw->cid, raw->state, &data->header,
 944                                         rule_cnt);
 945 }
 946
 947 static void bnx2x_set_one_vlan_mac_e2(struct bnx2x *bp,
 948                                       struct bnx2x_vlan_mac_obj *o,
 949                                       struct bnx2x_exeq_elem *elem,
 950                                       int rule_idx, int cam_offset)
 951 {
 952         struct bnx2x_raw_obj *raw = &o->raw;
 953         struct eth_classify_rules_ramrod_data *data =
 954                 (struct eth_classify_rules_ramrod_data *)(raw->rdata);
 955         int rule_cnt = rule_idx + 1;
 956         union eth_classify_rule_cmd *rule_entry = &data->rules[rule_idx];
 957         int cmd = elem->cmd_data.vlan_mac.cmd;
 958         bool add = (cmd == BNX2X_VLAN_MAC_ADD) ? true : false;
 959         u16 vlan = elem->cmd_data.vlan_mac.u.vlan_mac.vlan;
 960         u8 *mac = elem->cmd_data.vlan_mac.u.vlan_mac.mac;
 961
 962
 963         /* Reset the ramrod data buffer for the first rule */
 964         if (rule_idx == 0)
 965                 memset(data, 0, sizeof(*data));
 966
 967         /* Set a rule header */
 968         bnx2x_vlan_mac_set_cmd_hdr_e2(bp, o, add, CLASSIFY_RULE_OPCODE_PAIR,
 969                                       &rule_entry->pair.header);
 970
 971         /* Set VLAN and MAC themselvs */
 972         rule_entry->pair.vlan = cpu_to_le16(vlan);
 973         bnx2x_set_fw_mac_addr(&rule_entry->pair.mac_msb,
 974                               &rule_entry->pair.mac_mid,
 975                               &rule_entry->pair.mac_lsb, mac);
 976
 977         /* MOVE: Add a rule that will add this MAC to the target Queue */
 978         if (cmd == BNX2X_VLAN_MAC_MOVE) {
 979                 rule_entry++;
 980                 rule_cnt++;
 981
 982                 /* Setup ramrod data */
 983                 bnx2x_vlan_mac_set_cmd_hdr_e2(bp,
 984                                         elem->cmd_data.vlan_mac.target_obj,
 985                                               true, CLASSIFY_RULE_OPCODE_PAIR,
 986                                               &rule_entry->pair.header);
 987
 988                 /* Set a VLAN itself */
 989                 rule_entry->pair.vlan = cpu_to_le16(vlan);
 990                 bnx2x_set_fw_mac_addr(&rule_entry->pair.mac_msb,
 991                                       &rule_entry->pair.mac_mid,
 992                                       &rule_entry->pair.mac_lsb, mac);
 993         }
 994
 995         /* Set the ramrod data header */
 996         /* TODO: take this to the higher level in order to prevent multiple
 997                  writing */
 998         bnx2x_vlan_mac_set_rdata_hdr_e2(raw->cid, raw->state, &data->header,
 999                                         rule_cnt);
1000 }
1001
1002 /**
1003  * bnx2x_set_one_vlan_mac_e1h -
1004  *
1005  * @bp:         device handle
1006  * @o:          bnx2x_vlan_mac_obj
1007  * @elem:       bnx2x_exeq_elem
1008  * @rule_idx:   rule_idx
1009  * @cam_offset: cam_offset
1010  */
1011 static void bnx2x_set_one_vlan_mac_e1h(struct bnx2x *bp,
1012                                        struct bnx2x_vlan_mac_obj *o,
1013                                        struct bnx2x_exeq_elem *elem,
1014                                        int rule_idx, int cam_offset)
1015 {
1016         struct bnx2x_raw_obj *raw = &o->raw;
1017         struct mac_configuration_cmd *config =
1018                 (struct mac_configuration_cmd *)(raw->rdata);
1019         /*
1020          * 57710 and 57711 do not support MOVE command,
1021          * so it's either ADD or DEL
1022          */
1023         bool add = (elem->cmd_data.vlan_mac.cmd == BNX2X_VLAN_MAC_ADD) ?
1024                 true : false;
1025
1026         /* Reset the ramrod data buffer */
1027         memset(config, 0, sizeof(*config));
1028
1029         bnx2x_vlan_mac_set_rdata_e1x(bp, o, BNX2X_FILTER_VLAN_MAC_PENDING,
1030                                      cam_offset, add,
1031                                      elem->cmd_data.vlan_mac.u.vlan_mac.mac,
1032                                      elem->cmd_data.vlan_mac.u.vlan_mac.vlan,
1033                                      ETH_VLAN_FILTER_CLASSIFY, config);
1034 }
1035
1036 #define list_next_entry(pos, member) \
1037         list_entry((pos)->member.next, typeof(*(pos)), member)
1038
1039 /**
1040  * bnx2x_vlan_mac_restore - reconfigure next MAC/VLAN/VLAN-MAC element
1041  *
1042  * @bp:         device handle
1043  * @p:          command parameters
1044  * @ppos:       pointer to the cooky
1045  *
1046  * reconfigure next MAC/VLAN/VLAN-MAC element from the
1047  * previously configured elements list.
1048  *
1049  * from command parameters only RAMROD_COMP_WAIT bit in ramrod_flags is taken
1050  * into an account
1051  *
1052  * pointer to the cooky  - that should be given back in the next call to make
1053  * function handle the next element. If *ppos is set to NULL it will restart the
1054  * iterator. If returned *ppos == NULL this means that the last element has been
1055  * handled.
1056  *
1057  */
1058 static int bnx2x_vlan_mac_restore(struct bnx2x *bp,
1059                            struct bnx2x_vlan_mac_ramrod_params *p,
1060                            struct bnx2x_vlan_mac_registry_elem **ppos)
1061 {
1062         struct bnx2x_vlan_mac_registry_elem *pos;
1063         struct bnx2x_vlan_mac_obj *o = p->vlan_mac_obj;
1064
1065         /* If list is empty - there is nothing to do here */
1066         if (list_empty(&o->head)) {
1067                 *ppos = NULL;
1068                 return 0;
1069         }
1070
1071         /* make a step... */
1072         if (*ppos == NULL)
1073                 *ppos = list_first_entry(&o->head,
1074                                          struct bnx2x_vlan_mac_registry_elem,
1075                                          link);
1076         else
1077                 *ppos = list_next_entry(*ppos, link);
1078
1079         pos = *ppos;
1080
1081         /* If it's the last step - return NULL */
1082         if (list_is_last(&pos->link, &o->head))
1083                 *ppos = NULL;
1084
1085         /* Prepare a 'user_req' */
1086         memcpy(&p->user_req.u, &pos->u, sizeof(pos->u));
1087
1088         /* Set the command */
1089         p->user_req.cmd = BNX2X_VLAN_MAC_ADD;
1090
1091         /* Set vlan_mac_flags */
1092         p->user_req.vlan_mac_flags = pos->vlan_mac_flags;
1093
1094         /* Set a restore bit */
1095         __set_bit(RAMROD_RESTORE, &p->ramrod_flags);
1096
1097         return bnx2x_config_vlan_mac(bp, p);
1098 }
1099
1100 /*
1101  * bnx2x_exeq_get_mac/bnx2x_exeq_get_vlan/bnx2x_exeq_get_vlan_mac return a
1102  * pointer to an element with a specific criteria and NULL if such an element
1103  * hasn't been found.
1104  */
1105 static struct bnx2x_exeq_elem *bnx2x_exeq_get_mac(
1106         struct bnx2x_exe_queue_obj *o,
1107         struct bnx2x_exeq_elem *elem)
1108 {
1109         struct bnx2x_exeq_elem *pos;
1110         struct bnx2x_mac_ramrod_data *data = &elem->cmd_data.vlan_mac.u.mac;
1111
1112         /* Check pending for execution commands */
1113         list_for_each_entry(pos, &o->exe_queue, link)
1114                 if (!memcmp(&pos->cmd_data.vlan_mac.u.mac, data,
1115                               sizeof(*data)) &&
1116                     (pos->cmd_data.vlan_mac.cmd == elem->cmd_data.vlan_mac.cmd))
1117                         return pos;
1118
1119         return NULL;
1120 }
1121
1122 static struct bnx2x_exeq_elem *bnx2x_exeq_get_vlan(
1123         struct bnx2x_exe_queue_obj *o,
1124         struct bnx2x_exeq_elem *elem)
1125 {
1126         struct bnx2x_exeq_elem *pos;
1127         struct bnx2x_vlan_ramrod_data *data = &elem->cmd_data.vlan_mac.u.vlan;
1128
1129         /* Check pending for execution commands */
1130         list_for_each_entry(pos, &o->exe_queue, link)
1131                 if (!memcmp(&pos->cmd_data.vlan_mac.u.vlan, data,
1132                               sizeof(*data)) &&
1133                     (pos->cmd_data.vlan_mac.cmd == elem->cmd_data.vlan_mac.cmd))
1134                         return pos;
1135
1136         return NULL;
1137 }
1138
1139 static struct bnx2x_exeq_elem *bnx2x_exeq_get_vlan_mac(
1140         struct bnx2x_exe_queue_obj *o,
1141         struct bnx2x_exeq_elem *elem)
1142 {
1143         struct bnx2x_exeq_elem *pos;
1144         struct bnx2x_vlan_mac_ramrod_data *data =
1145                 &elem->cmd_data.vlan_mac.u.vlan_mac;
1146
1147         /* Check pending for execution commands */
1148         list_for_each_entry(pos, &o->exe_queue, link)
1149                 if (!memcmp(&pos->cmd_data.vlan_mac.u.vlan_mac, data,
1150                               sizeof(*data)) &&
1151                     (pos->cmd_data.vlan_mac.cmd == elem->cmd_data.vlan_mac.cmd))
1152                         return pos;
1153
1154         return NULL;
1155 }
1156
1157 /**
1158  * bnx2x_validate_vlan_mac_add - check if an ADD command can be executed
1159  *
1160  * @bp:         device handle
1161  * @qo:         bnx2x_qable_obj
1162  * @elem:       bnx2x_exeq_elem
1163  *
1164  * Checks that the requested configuration can be added. If yes and if
1165  * requested, consume CAM credit.
1166  *
1167  * The 'validate' is run after the 'optimize'.
1168  *
1169  */
1170 static inline int bnx2x_validate_vlan_mac_add(struct bnx2x *bp,
1171                                               union bnx2x_qable_obj *qo,
1172                                               struct bnx2x_exeq_elem *elem)
1173 {
1174         struct bnx2x_vlan_mac_obj *o = &qo->vlan_mac;
1175         struct bnx2x_exe_queue_obj *exeq = &o->exe_queue;
1176         int rc;
1177
1178         /* Check the registry */
1179         rc = o->check_add(bp, o, &elem->cmd_data.vlan_mac.u);
1180         if (rc) {
1181                 DP(BNX2X_MSG_SP, "ADD command is not allowed considering current registry state.\n");
1182                 return rc;
1183         }
1184
1185         /*
1186          * Check if there is a pending ADD command for this
1187          * MAC/VLAN/VLAN-MAC. Return an error if there is.
1188          */
1189         if (exeq->get(exeq, elem)) {
1190                 DP(BNX2X_MSG_SP, "There is a pending ADD command already\n");
1191                 return -EEXIST;
1192         }
1193
1194         /*
1195          * TODO: Check the pending MOVE from other objects where this
1196          * object is a destination object.
1197          */
1198
1199         /* Consume the credit if not requested not to */
1200         if (!(test_bit(BNX2X_DONT_CONSUME_CAM_CREDIT,
1201                        &elem->cmd_data.vlan_mac.vlan_mac_flags) ||
1202             o->get_credit(o)))
1203                 return -EINVAL;
1204
1205         return 0;
1206 }
1207
1208 /**
1209  * bnx2x_validate_vlan_mac_del - check if the DEL command can be executed
1210  *
1211  * @bp:         device handle
1212  * @qo:         quable object to check
1213  * @elem:       element that needs to be deleted
1214  *
1215  * Checks that the requested configuration can be deleted. If yes and if
1216  * requested, returns a CAM credit.
1217  *
1218  * The 'validate' is run after the 'optimize'.
1219  */
1220 static inline int bnx2x_validate_vlan_mac_del(struct bnx2x *bp,
1221                                               union bnx2x_qable_obj *qo,
1222                                               struct bnx2x_exeq_elem *elem)
1223 {
1224         struct bnx2x_vlan_mac_obj *o = &qo->vlan_mac;
1225         struct bnx2x_vlan_mac_registry_elem *pos;
1226         struct bnx2x_exe_queue_obj *exeq = &o->exe_queue;
1227         struct bnx2x_exeq_elem query_elem;
1228
1229         /* If this classification can not be deleted (doesn't exist)
1230          * - return a BNX2X_EXIST.
1231          */
1232         pos = o->check_del(bp, o, &elem->cmd_data.vlan_mac.u);
1233         if (!pos) {
1234                 DP(BNX2X_MSG_SP, "DEL command is not allowed considering current registry state\n");
1235                 return -EEXIST;
1236         }
1237
1238         /*
1239          * Check if there are pending DEL or MOVE commands for this
1240          * MAC/VLAN/VLAN-MAC. Return an error if so.
1241          */
1242         memcpy(&query_elem, elem, sizeof(query_elem));
1243
1244         /* Check for MOVE commands */
1245         query_elem.cmd_data.vlan_mac.cmd = BNX2X_VLAN_MAC_MOVE;
1246         if (exeq->get(exeq, &query_elem)) {
1247                 BNX2X_ERR("There is a pending MOVE command already\n");
1248                 return -EINVAL;
1249         }
1250
1251         /* Check for DEL commands */
1252         if (exeq->get(exeq, elem)) {
1253                 DP(BNX2X_MSG_SP, "There is a pending DEL command already\n");
1254                 return -EEXIST;
1255         }
1256
1257         /* Return the credit to the credit pool if not requested not to */
1258         if (!(test_bit(BNX2X_DONT_CONSUME_CAM_CREDIT,
1259                        &elem->cmd_data.vlan_mac.vlan_mac_flags) ||
1260             o->put_credit(o))) {
1261                 BNX2X_ERR("Failed to return a credit\n");
1262                 return -EINVAL;
1263         }
1264
1265         return 0;
1266 }
1267
1268 /**
1269  * bnx2x_validate_vlan_mac_move - check if the MOVE command can be executed
1270  *
1271  * @bp:         device handle
1272  * @qo:         quable object to check (source)
1273  * @elem:       element that needs to be moved
1274  *
1275  * Checks that the requested configuration can be moved. If yes and if
1276  * requested, returns a CAM credit.
1277  *
1278  * The 'validate' is run after the 'optimize'.
1279  */
1280 static inline int bnx2x_validate_vlan_mac_move(struct bnx2x *bp,
1281                                                union bnx2x_qable_obj *qo,
1282                                                struct bnx2x_exeq_elem *elem)
1283 {
1284         struct bnx2x_vlan_mac_obj *src_o = &qo->vlan_mac;
1285         struct bnx2x_vlan_mac_obj *dest_o = elem->cmd_data.vlan_mac.target_obj;
1286         struct bnx2x_exeq_elem query_elem;
1287         struct bnx2x_exe_queue_obj *src_exeq = &src_o->exe_queue;
1288         struct bnx2x_exe_queue_obj *dest_exeq = &dest_o->exe_queue;
1289
1290         /*
1291          * Check if we can perform this operation based on the current registry
1292          * state.
1293          */
1294         if (!src_o->check_move(bp, src_o, dest_o,
1295                                &elem->cmd_data.vlan_mac.u)) {
1296                 DP(BNX2X_MSG_SP, "MOVE command is not allowed considering current registry state\n");
1297                 return -EINVAL;
1298         }
1299
1300         /*
1301          * Check if there is an already pending DEL or MOVE command for the
1302          * source object or ADD command for a destination object. Return an
1303          * error if so.
1304          */
1305         memcpy(&query_elem, elem, sizeof(query_elem));
1306
1307         /* Check DEL on source */
1308         query_elem.cmd_data.vlan_mac.cmd = BNX2X_VLAN_MAC_DEL;
1309         if (src_exeq->get(src_exeq, &query_elem)) {
1310                 BNX2X_ERR("There is a pending DEL command on the source queue already\n");
1311                 return -EINVAL;
1312         }
1313
1314         /* Check MOVE on source */
1315         if (src_exeq->get(src_exeq, elem)) {
1316                 DP(BNX2X_MSG_SP, "There is a pending MOVE command already\n");
1317                 return -EEXIST;
1318         }
1319
1320         /* Check ADD on destination */
1321         query_elem.cmd_data.vlan_mac.cmd = BNX2X_VLAN_MAC_ADD;
1322         if (dest_exeq->get(dest_exeq, &query_elem)) {
1323                 BNX2X_ERR("There is a pending ADD command on the destination queue already\n");
1324                 return -EINVAL;
1325         }
1326
1327         /* Consume the credit if not requested not to */
1328         if (!(test_bit(BNX2X_DONT_CONSUME_CAM_CREDIT_DEST,
1329                        &elem->cmd_data.vlan_mac.vlan_mac_flags) ||
1330             dest_o->get_credit(dest_o)))
1331                 return -EINVAL;
1332
1333         if (!(test_bit(BNX2X_DONT_CONSUME_CAM_CREDIT,
1334                        &elem->cmd_data.vlan_mac.vlan_mac_flags) ||
1335             src_o->put_credit(src_o))) {
1336                 /* return the credit taken from dest... */
1337                 dest_o->put_credit(dest_o);
1338                 return -EINVAL;
1339         }
1340
1341         return 0;
1342 }
1343
1344 static int bnx2x_validate_vlan_mac(struct bnx2x *bp,
1345                                    union bnx2x_qable_obj *qo,
1346                                    struct bnx2x_exeq_elem *elem)
1347 {
1348         switch (elem->cmd_data.vlan_mac.cmd) {
1349         case BNX2X_VLAN_MAC_ADD:
1350                 return bnx2x_validate_vlan_mac_add(bp, qo, elem);
1351         case BNX2X_VLAN_MAC_DEL:
1352                 return bnx2x_validate_vlan_mac_del(bp, qo, elem);
1353         case BNX2X_VLAN_MAC_MOVE:
1354                 return bnx2x_validate_vlan_mac_move(bp, qo, elem);
1355         default:
1356                 return -EINVAL;
1357         }
1358 }
1359
1360 static int bnx2x_remove_vlan_mac(struct bnx2x *bp,
1361                                   union bnx2x_qable_obj *qo,
1362                                   struct bnx2x_exeq_elem *elem)
1363 {
1364         int rc = 0;
1365
1366         /* If consumption wasn't required, nothing to do */
1367         if (test_bit(BNX2X_DONT_CONSUME_CAM_CREDIT,
1368                      &elem->cmd_data.vlan_mac.vlan_mac_flags))
1369                 return 0;
1370
1371         switch (elem->cmd_data.vlan_mac.cmd) {
1372         case BNX2X_VLAN_MAC_ADD:
1373         case BNX2X_VLAN_MAC_MOVE:
1374                 rc = qo->vlan_mac.put_credit(&qo->vlan_mac);
1375                 break;
1376         case BNX2X_VLAN_MAC_DEL:
1377                 rc = qo->vlan_mac.get_credit(&qo->vlan_mac);
1378                 break;
1379         default:
1380                 return -EINVAL;
1381         }
1382
1383         if (rc != true)
1384                 return -EINVAL;
1385
1386         return 0;
1387 }
1388
1389 /**
1390  * bnx2x_wait_vlan_mac - passivly wait for 5 seconds until all work completes.
1391  *
1392  * @bp:         device handle
1393  * @o:          bnx2x_vlan_mac_obj
1394  *
1395  */
1396 static int bnx2x_wait_vlan_mac(struct bnx2x *bp,
1397                                struct bnx2x_vlan_mac_obj *o)
1398 {
1399         int cnt = 5000, rc;
1400         struct bnx2x_exe_queue_obj *exeq = &o->exe_queue;
1401         struct bnx2x_raw_obj *raw = &o->raw;
1402
1403         while (cnt--) {
1404                 /* Wait for the current command to complete */
1405                 rc = raw->wait_comp(bp, raw);
1406                 if (rc)
1407                         return rc;
1408
1409                 /* Wait until there are no pending commands */
1410                 if (!bnx2x_exe_queue_empty(exeq))
1411                         usleep_range(1000, 1000);
1412                 else
1413                         return 0;
1414         }
1415
1416         return -EBUSY;
1417 }
1418
1419 /**
1420  * bnx2x_complete_vlan_mac - complete one VLAN-MAC ramrod
1421  *
1422  * @bp:         device handle
1423  * @o:          bnx2x_vlan_mac_obj
1424  * @cqe:
1425  * @cont:       if true schedule next execution chunk
1426  *
1427  */
1428 static int bnx2x_complete_vlan_mac(struct bnx2x *bp,
1429                                    struct bnx2x_vlan_mac_obj *o,
1430                                    union event_ring_elem *cqe,
1431                                    unsigned long *ramrod_flags)
1432 {
1433         struct bnx2x_raw_obj *r = &o->raw;
1434         int rc;
1435
1436         /* Reset pending list */
1437         bnx2x_exe_queue_reset_pending(bp, &o->exe_queue);
1438
1439         /* Clear pending */
1440         r->clear_pending(r);
1441
1442         /* If ramrod failed this is most likely a SW bug */
1443         if (cqe->message.error)
1444                 return -EINVAL;
1445
1446         /* Run the next bulk of pending commands if requeted */
1447         if (test_bit(RAMROD_CONT, ramrod_flags)) {
1448                 rc = bnx2x_exe_queue_step(bp, &o->exe_queue, ramrod_flags);
1449                 if (rc < 0)
1450                         return rc;
1451         }
1452
1453         /* If there is more work to do return PENDING */
1454         if (!bnx2x_exe_queue_empty(&o->exe_queue))
1455                 return 1;
1456
1457         return 0;
1458 }
1459
1460 /**
1461  * bnx2x_optimize_vlan_mac - optimize ADD and DEL commands.
1462  *
1463  * @bp:         device handle
1464  * @o:          bnx2x_qable_obj
1465  * @elem:       bnx2x_exeq_elem
1466  */
1467 static int bnx2x_optimize_vlan_mac(struct bnx2x *bp,
1468                                    union bnx2x_qable_obj *qo,
1469                                    struct bnx2x_exeq_elem *elem)
1470 {
1471         struct bnx2x_exeq_elem query, *pos;
1472         struct bnx2x_vlan_mac_obj *o = &qo->vlan_mac;
1473         struct bnx2x_exe_queue_obj *exeq = &o->exe_queue;
1474
1475         memcpy(&query, elem, sizeof(query));
1476
1477         switch (elem->cmd_data.vlan_mac.cmd) {
1478         case BNX2X_VLAN_MAC_ADD:
1479                 query.cmd_data.vlan_mac.cmd = BNX2X_VLAN_MAC_DEL;
1480                 break;
1481         case BNX2X_VLAN_MAC_DEL:
1482                 query.cmd_data.vlan_mac.cmd = BNX2X_VLAN_MAC_ADD;
1483                 break;
1484         default:
1485                 /* Don't handle anything other than ADD or DEL */
1486                 return 0;
1487         }
1488
1489         /* If we found the appropriate element - delete it */
1490         pos = exeq->get(exeq, &query);
1491         if (pos) {
1492
1493                 /* Return the credit of the optimized command */
1494                 if (!test_bit(BNX2X_DONT_CONSUME_CAM_CREDIT,
1495                               &pos->cmd_data.vlan_mac.vlan_mac_flags)) {
1496                         if ((query.cmd_data.vlan_mac.cmd ==
1497                              BNX2X_VLAN_MAC_ADD) && !o->put_credit(o)) {
1498                                 BNX2X_ERR("Failed to return the credit for the optimized ADD command\n");
1499                                 return -EINVAL;
1500                         } else if (!o->get_credit(o)) { /* VLAN_MAC_DEL */
1501                                 BNX2X_ERR("Failed to recover the credit from the optimized DEL command\n");
1502                                 return -EINVAL;
1503                         }
1504                 }
1505
1506                 DP(BNX2X_MSG_SP, "Optimizing %s command\n",
1507                            (elem->cmd_data.vlan_mac.cmd == BNX2X_VLAN_MAC_ADD) ?
1508                            "ADD" : "DEL");
1509
1510                 list_del(&pos->link);
1511                 bnx2x_exe_queue_free_elem(bp, pos);
1512                 return 1;
1513         }
1514
1515         return 0;
1516 }
1517
1518 /**
1519  * bnx2x_vlan_mac_get_registry_elem - prepare a registry element
1520  *
1521  * @bp:   device handle
1522  * @o:
1523  * @elem:
1524  * @restore:
1525  * @re:
1526  *
1527  * prepare a registry element according to the current command request.
1528  */
1529 static inline int bnx2x_vlan_mac_get_registry_elem(
1530         struct bnx2x *bp,
1531         struct bnx2x_vlan_mac_obj *o,
1532         struct bnx2x_exeq_elem *elem,
1533         bool restore,
1534         struct bnx2x_vlan_mac_registry_elem **re)
1535 {
1536         int cmd = elem->cmd_data.vlan_mac.cmd;
1537         struct bnx2x_vlan_mac_registry_elem *reg_elem;
1538
1539         /* Allocate a new registry element if needed. */
1540         if (!restore &&
1541             ((cmd == BNX2X_VLAN_MAC_ADD) || (cmd == BNX2X_VLAN_MAC_MOVE))) {
1542                 reg_elem = kzalloc(sizeof(*reg_elem), GFP_ATOMIC);
1543                 if (!reg_elem)
1544                         return -ENOMEM;
1545
1546                 /* Get a new CAM offset */
1547                 if (!o->get_cam_offset(o, &reg_elem->cam_offset)) {
1548                         /*
1549                          * This shell never happen, because we have checked the
1550                          * CAM availiability in the 'validate'.
1551                          */
1552                         WARN_ON(1);
1553                         kfree(reg_elem);
1554                         return -EINVAL;
1555                 }
1556
1557                 DP(BNX2X_MSG_SP, "Got cam offset %d\n", reg_elem->cam_offset);
1558
1559                 /* Set a VLAN-MAC data */
1560                 memcpy(&reg_elem->u, &elem->cmd_data.vlan_mac.u,
1561                           sizeof(reg_elem->u));
1562
1563                 /* Copy the flags (needed for DEL and RESTORE flows) */
1564                 reg_elem->vlan_mac_flags =
1565                         elem->cmd_data.vlan_mac.vlan_mac_flags;
1566         } else /* DEL, RESTORE */
1567                 reg_elem = o->check_del(bp, o, &elem->cmd_data.vlan_mac.u);
1568
1569         *re = reg_elem;
1570         return 0;
1571 }
1572
1573 /**
1574  * bnx2x_execute_vlan_mac - execute vlan mac command
1575  *
1576  * @bp:                 device handle
1577  * @qo:
1578  * @exe_chunk:
1579  * @ramrod_flags:
1580  *
1581  * go and send a ramrod!
1582  */
1583 static int bnx2x_execute_vlan_mac(struct bnx2x *bp,
1584                                   union bnx2x_qable_obj *qo,
1585                                   struct list_head *exe_chunk,
1586                                   unsigned long *ramrod_flags)
1587 {
1588         struct bnx2x_exeq_elem *elem;
1589         struct bnx2x_vlan_mac_obj *o = &qo->vlan_mac, *cam_obj;
1590         struct bnx2x_raw_obj *r = &o->raw;
1591         int rc, idx = 0;
1592         bool restore = test_bit(RAMROD_RESTORE, ramrod_flags);
1593         bool drv_only = test_bit(RAMROD_DRV_CLR_ONLY, ramrod_flags);
1594         struct bnx2x_vlan_mac_registry_elem *reg_elem;
1595         int cmd;
1596
1597         /*
1598          * If DRIVER_ONLY execution is requested, cleanup a registry
1599          * and exit. Otherwise send a ramrod to FW.
1600          */
1601         if (!drv_only) {
1602                 WARN_ON(r->check_pending(r));
1603
1604                 /* Set pending */
1605                 r->set_pending(r);
1606
1607                 /* Fill tha ramrod data */
1608                 list_for_each_entry(elem, exe_chunk, link) {
1609                         cmd = elem->cmd_data.vlan_mac.cmd;
1610                         /*
1611                          * We will add to the target object in MOVE command, so
1612                          * change the object for a CAM search.
1613                          */
1614                         if (cmd == BNX2X_VLAN_MAC_MOVE)
1615                                 cam_obj = elem->cmd_data.vlan_mac.target_obj;
1616                         else
1617                                 cam_obj = o;
1618
1619                         rc = bnx2x_vlan_mac_get_registry_elem(bp, cam_obj,
1620                                                               elem, restore,
1621                                                               &reg_elem);
1622                         if (rc)
1623                                 goto error_exit;
1624
1625                         WARN_ON(!reg_elem);
1626
1627                         /* Push a new entry into the registry */
1628                         if (!restore &&
1629                             ((cmd == BNX2X_VLAN_MAC_ADD) ||
1630                             (cmd == BNX2X_VLAN_MAC_MOVE)))
1631                                 list_add(&reg_elem->link, &cam_obj->head);
1632
1633                         /* Configure a single command in a ramrod data buffer */
1634                         o->set_one_rule(bp, o, elem, idx,
1635                                         reg_elem->cam_offset);
1636
1637                         /* MOVE command consumes 2 entries in the ramrod data */
1638                         if (cmd == BNX2X_VLAN_MAC_MOVE)
1639                                 idx += 2;
1640                         else
1641                                 idx++;
1642                 }
1643
1644                 /*
1645                  *  No need for an explicit memory barrier here as long we would
1646                  *  need to ensure the ordering of writing to the SPQ element
1647                  *  and updating of the SPQ producer which involves a memory
1648                  *  read and we will have to put a full memory barrier there
1649                  *  (inside bnx2x_sp_post()).
1650                  */
1651
1652                 rc = bnx2x_sp_post(bp, o->ramrod_cmd, r->cid,
1653                                    U64_HI(r->rdata_mapping),
1654                                    U64_LO(r->rdata_mapping),
1655                                    ETH_CONNECTION_TYPE);
1656                 if (rc)
1657                         goto error_exit;
1658         }
1659
1660         /* Now, when we are done with the ramrod - clean up the registry */
1661         list_for_each_entry(elem, exe_chunk, link) {
1662                 cmd = elem->cmd_data.vlan_mac.cmd;
1663                 if ((cmd == BNX2X_VLAN_MAC_DEL) ||
1664                     (cmd == BNX2X_VLAN_MAC_MOVE)) {
1665                         reg_elem = o->check_del(bp, o,
1666                                                 &elem->cmd_data.vlan_mac.u);
1667
1668                         WARN_ON(!reg_elem);
1669
1670                         o->put_cam_offset(o, reg_elem->cam_offset);
1671                         list_del(&reg_elem->link);
1672                         kfree(reg_elem);
1673                 }
1674         }
1675
1676         if (!drv_only)
1677                 return 1;
1678         else
1679                 return 0;
1680
1681 error_exit:
1682         r->clear_pending(r);
1683
1684         /* Cleanup a registry in case of a failure */
1685         list_for_each_entry(elem, exe_chunk, link) {
1686                 cmd = elem->cmd_data.vlan_mac.cmd;
1687
1688                 if (cmd == BNX2X_VLAN_MAC_MOVE)
1689                         cam_obj = elem->cmd_data.vlan_mac.target_obj;
1690                 else
1691                         cam_obj = o;
1692
1693                 /* Delete all newly added above entries */
1694                 if (!restore &&
1695                     ((cmd == BNX2X_VLAN_MAC_ADD) ||
1696                     (cmd == BNX2X_VLAN_MAC_MOVE))) {
1697                         reg_elem = o->check_del(bp, cam_obj,
1698                                                 &elem->cmd_data.vlan_mac.u);
1699                         if (reg_elem) {
1700                                 list_del(&reg_elem->link);
1701                                 kfree(reg_elem);
1702                         }
1703                 }
1704         }
1705
1706         return rc;
1707 }
1708
1709 static inline int bnx2x_vlan_mac_push_new_cmd(
1710         struct bnx2x *bp,
1711         struct bnx2x_vlan_mac_ramrod_params *p)
1712 {
1713         struct bnx2x_exeq_elem *elem;
1714         struct bnx2x_vlan_mac_obj *o = p->vlan_mac_obj;
1715         bool restore = test_bit(RAMROD_RESTORE, &p->ramrod_flags);
1716
1717         /* Allocate the execution queue element */
1718         elem = bnx2x_exe_queue_alloc_elem(bp);
1719         if (!elem)
1720                 return -ENOMEM;
1721
1722         /* Set the command 'length' */
1723         switch (p->user_req.cmd) {
1724         case BNX2X_VLAN_MAC_MOVE:
1725                 elem->cmd_len = 2;
1726                 break;
1727         default:
1728                 elem->cmd_len = 1;
1729         }
1730
1731         /* Fill the object specific info */
1732         memcpy(&elem->cmd_data.vlan_mac, &p->user_req, sizeof(p->user_req));
1733
1734         /* Try to add a new command to the pending list */
1735         return bnx2x_exe_queue_add(bp, &o->exe_queue, elem, restore);
1736 }
1737
1738 /**
1739  * bnx2x_config_vlan_mac - configure VLAN/MAC/VLAN_MAC filtering rules.
1740  *
1741  * @bp:   device handle
1742  * @p:
1743  *
1744  */
1745 int bnx2x_config_vlan_mac(
1746         struct bnx2x *bp,
1747         struct bnx2x_vlan_mac_ramrod_params *p)
1748 {
1749         int rc = 0;
1750         struct bnx2x_vlan_mac_obj *o = p->vlan_mac_obj;
1751         unsigned long *ramrod_flags = &p->ramrod_flags;
1752         bool cont = test_bit(RAMROD_CONT, ramrod_flags);
1753         struct bnx2x_raw_obj *raw = &o->raw;
1754
1755         /*
1756          * Add new elements to the execution list for commands that require it.
1757          */
1758         if (!cont) {
1759                 rc = bnx2x_vlan_mac_push_new_cmd(bp, p);
1760                 if (rc)
1761                         return rc;
1762         }
1763
1764         /*
1765          * If nothing will be executed further in this iteration we want to
1766          * return PENDING if there are pending commands
1767          */
1768         if (!bnx2x_exe_queue_empty(&o->exe_queue))
1769                 rc = 1;
1770
1771         if (test_bit(RAMROD_DRV_CLR_ONLY, ramrod_flags))  {
1772                 DP(BNX2X_MSG_SP, "RAMROD_DRV_CLR_ONLY requested: clearing a pending bit.\n");
1773                 raw->clear_pending(raw);
1774         }
1775
1776         /* Execute commands if required */
1777         if (cont || test_bit(RAMROD_EXEC, ramrod_flags) ||
1778             test_bit(RAMROD_COMP_WAIT, ramrod_flags)) {
1779                 rc = bnx2x_exe_queue_step(bp, &o->exe_queue, ramrod_flags);
1780                 if (rc < 0)
1781                         return rc;
1782         }
1783
1784         /*
1785          * RAMROD_COMP_WAIT is a superset of RAMROD_EXEC. If it was set
1786          * then user want to wait until the last command is done.
1787          */
1788         if (test_bit(RAMROD_COMP_WAIT, &p->ramrod_flags)) {
1789                 /*
1790                  * Wait maximum for the current exe_queue length iterations plus
1791                  * one (for the current pending command).
1792                  */
1793                 int max_iterations = bnx2x_exe_queue_length(&o->exe_queue) + 1;
1794
1795                 while (!bnx2x_exe_queue_empty(&o->exe_queue) &&
1796                        max_iterations--) {
1797
1798                         /* Wait for the current command to complete */
1799                         rc = raw->wait_comp(bp, raw);
1800                         if (rc)
1801                                 return rc;
1802
1803                         /* Make a next step */
1804                         rc = bnx2x_exe_queue_step(bp, &o->exe_queue,
1805                                                   ramrod_flags);
1806                         if (rc < 0)
1807                                 return rc;
1808                 }
1809
1810                 return 0;
1811         }
1812
1813         return rc;
1814 }
1815
1816
1817
1818 /**
1819  * bnx2x_vlan_mac_del_all - delete elements with given vlan_mac_flags spec
1820  *
1821  * @bp:                 device handle
1822  * @o:
1823  * @vlan_mac_flags:
1824  * @ramrod_flags:       execution flags to be used for this deletion
1825  *
1826  * if the last operation has completed successfully and there are no
1827  * moreelements left, positive value if the last operation has completed
1828  * successfully and there are more previously configured elements, negative
1829  * value is current operation has failed.
1830  */
1831 static int bnx2x_vlan_mac_del_all(struct bnx2x *bp,
1832                                   struct bnx2x_vlan_mac_obj *o,
1833                                   unsigned long *vlan_mac_flags,
1834                                   unsigned long *ramrod_flags)
1835 {
1836         struct bnx2x_vlan_mac_registry_elem *pos = NULL;
1837         int rc = 0;
1838         struct bnx2x_vlan_mac_ramrod_params p;
1839         struct bnx2x_exe_queue_obj *exeq = &o->exe_queue;
1840         struct bnx2x_exeq_elem *exeq_pos, *exeq_pos_n;
1841
1842         /* Clear pending commands first */
1843
1844         spin_lock_bh(&exeq->lock);
1845
1846         list_for_each_entry_safe(exeq_pos, exeq_pos_n, &exeq->exe_queue, link) {
1847                 if (exeq_pos->cmd_data.vlan_mac.vlan_mac_flags ==
1848                     *vlan_mac_flags) {
1849                         rc = exeq->remove(bp, exeq->owner, exeq_pos);
1850                         if (rc) {
1851                                 BNX2X_ERR("Failed to remove command\n");
1852                                 spin_unlock_bh(&exeq->lock);
1853                                 return rc;
1854                         }
1855                         list_del(&exeq_pos->link);
1856                 }
1857         }
1858
1859         spin_unlock_bh(&exeq->lock);
1860
1861         /* Prepare a command request */
1862         memset(&p, 0, sizeof(p));
1863         p.vlan_mac_obj = o;
1864         p.ramrod_flags = *ramrod_flags;
1865         p.user_req.cmd = BNX2X_VLAN_MAC_DEL;
1866
1867         /*
1868          * Add all but the last VLAN-MAC to the execution queue without actually
1869          * execution anything.
1870          */
1871         __clear_bit(RAMROD_COMP_WAIT, &p.ramrod_flags);
1872         __clear_bit(RAMROD_EXEC, &p.ramrod_flags);
1873         __clear_bit(RAMROD_CONT, &p.ramrod_flags);
1874
1875         list_for_each_entry(pos, &o->head, link) {
1876                 if (pos->vlan_mac_flags == *vlan_mac_flags) {
1877                         p.user_req.vlan_mac_flags = pos->vlan_mac_flags;
1878                         memcpy(&p.user_req.u, &pos->u, sizeof(pos->u));
1879                         rc = bnx2x_config_vlan_mac(bp, &p);
1880                         if (rc < 0) {
1881                                 BNX2X_ERR("Failed to add a new DEL command\n");
1882                                 return rc;
1883                         }
1884                 }
1885         }
1886
1887         p.ramrod_flags = *ramrod_flags;
1888         __set_bit(RAMROD_CONT, &p.ramrod_flags);
1889
1890         return bnx2x_config_vlan_mac(bp, &p);
1891 }
1892
1893 static inline void bnx2x_init_raw_obj(struct bnx2x_raw_obj *raw, u8 cl_id,
1894         u32 cid, u8 func_id, void *rdata, dma_addr_t rdata_mapping, int state,
1895         unsigned long *pstate, bnx2x_obj_type type)
1896 {
1897         raw->func_id = func_id;
1898         raw->cid = cid;
1899         raw->cl_id = cl_id;
1900         raw->rdata = rdata;
1901         raw->rdata_mapping = rdata_mapping;
1902         raw->state = state;
1903         raw->pstate = pstate;
1904         raw->obj_type = type;
1905         raw->check_pending = bnx2x_raw_check_pending;
1906         raw->clear_pending = bnx2x_raw_clear_pending;
1907         raw->set_pending = bnx2x_raw_set_pending;
1908         raw->wait_comp = bnx2x_raw_wait;
1909 }
1910
1911 static inline void bnx2x_init_vlan_mac_common(struct bnx2x_vlan_mac_obj *o,
1912         u8 cl_id, u32 cid, u8 func_id, void *rdata, dma_addr_t rdata_mapping,
1913         int state, unsigned long *pstate, bnx2x_obj_type type,
1914         struct bnx2x_credit_pool_obj *macs_pool,
1915         struct bnx2x_credit_pool_obj *vlans_pool)
1916 {
1917         INIT_LIST_HEAD(&o->head);
1918
1919         o->macs_pool = macs_pool;
1920         o->vlans_pool = vlans_pool;
1921
1922         o->delete_all = bnx2x_vlan_mac_del_all;
1923         o->restore = bnx2x_vlan_mac_restore;
1924         o->complete = bnx2x_complete_vlan_mac;
1925         o->wait = bnx2x_wait_vlan_mac;
1926
1927         bnx2x_init_raw_obj(&o->raw, cl_id, cid, func_id, rdata, rdata_mapping,
1928                            state, pstate, type);
1929 }
1930
1931
1932 void bnx2x_init_mac_obj(struct bnx2x *bp,
1933                         struct bnx2x_vlan_mac_obj *mac_obj,
1934                         u8 cl_id, u32 cid, u8 func_id, void *rdata,
1935                         dma_addr_t rdata_mapping, int state,
1936                         unsigned long *pstate, bnx2x_obj_type type,
1937                         struct bnx2x_credit_pool_obj *macs_pool)
1938 {
1939         union bnx2x_qable_obj *qable_obj = (union bnx2x_qable_obj *)mac_obj;
1940
1941         bnx2x_init_vlan_mac_common(mac_obj, cl_id, cid, func_id, rdata,
1942                                    rdata_mapping, state, pstate, type,
1943                                    macs_pool, NULL);
1944
1945         /* CAM credit pool handling */
1946         mac_obj->get_credit = bnx2x_get_credit_mac;
1947         mac_obj->put_credit = bnx2x_put_credit_mac;
1948         mac_obj->get_cam_offset = bnx2x_get_cam_offset_mac;
1949         mac_obj->put_cam_offset = bnx2x_put_cam_offset_mac;
1950
1951         if (CHIP_IS_E1x(bp)) {
1952                 mac_obj->set_one_rule      = bnx2x_set_one_mac_e1x;
1953                 mac_obj->check_del         = bnx2x_check_mac_del;
1954                 mac_obj->check_add         = bnx2x_check_mac_add;
1955                 mac_obj->check_move        = bnx2x_check_move_always_err;
1956                 mac_obj->ramrod_cmd        = RAMROD_CMD_ID_ETH_SET_MAC;
1957
1958                 /* Exe Queue */
1959                 bnx2x_exe_queue_init(bp,
1960                                      &mac_obj->exe_queue, 1, qable_obj,
1961                                      bnx2x_validate_vlan_mac,
1962                                      bnx2x_remove_vlan_mac,
1963                                      bnx2x_optimize_vlan_mac,
1964                                      bnx2x_execute_vlan_mac,
1965                                      bnx2x_exeq_get_mac);
1966         } else {
1967                 mac_obj->set_one_rule      = bnx2x_set_one_mac_e2;
1968                 mac_obj->check_del         = bnx2x_check_mac_del;
1969                 mac_obj->check_add         = bnx2x_check_mac_add;
1970                 mac_obj->check_move        = bnx2x_check_move;
1971                 mac_obj->ramrod_cmd        =
1972                         RAMROD_CMD_ID_ETH_CLASSIFICATION_RULES;
1973                 mac_obj->get_n_elements    = bnx2x_get_n_elements;
1974
1975                 /* Exe Queue */
1976                 bnx2x_exe_queue_init(bp,
1977                                      &mac_obj->exe_queue, CLASSIFY_RULES_COUNT,
1978                                      qable_obj, bnx2x_validate_vlan_mac,
1979                                      bnx2x_remove_vlan_mac,
1980                                      bnx2x_optimize_vlan_mac,
1981                                      bnx2x_execute_vlan_mac,
1982                                      bnx2x_exeq_get_mac);
1983         }
1984 }
1985
1986 void bnx2x_init_vlan_obj(struct bnx2x *bp,
1987                          struct bnx2x_vlan_mac_obj *vlan_obj,
1988                          u8 cl_id, u32 cid, u8 func_id, void *rdata,
1989                          dma_addr_t rdata_mapping, int state,
1990                          unsigned long *pstate, bnx2x_obj_type type,
1991                          struct bnx2x_credit_pool_obj *vlans_pool)
1992 {
1993         union bnx2x_qable_obj *qable_obj = (union bnx2x_qable_obj *)vlan_obj;
1994
1995         bnx2x_init_vlan_mac_common(vlan_obj, cl_id, cid, func_id, rdata,
1996                                    rdata_mapping, state, pstate, type, NULL,
1997                                    vlans_pool);
1998
1999         vlan_obj->get_credit = bnx2x_get_credit_vlan;
2000         vlan_obj->put_credit = bnx2x_put_credit_vlan;
2001         vlan_obj->get_cam_offset = bnx2x_get_cam_offset_vlan;
2002         vlan_obj->put_cam_offset = bnx2x_put_cam_offset_vlan;
2003
2004         if (CHIP_IS_E1x(bp)) {
2005                 BNX2X_ERR("Do not support chips others than E2 and newer\n");
2006                 BUG();
2007         } else {
2008                 vlan_obj->set_one_rule      = bnx2x_set_one_vlan_e2;
2009                 vlan_obj->check_del         = bnx2x_check_vlan_del;
2010                 vlan_obj->check_add         = bnx2x_check_vlan_add;
2011                 vlan_obj->check_move        = bnx2x_check_move;
2012                 vlan_obj->ramrod_cmd        =
2013                         RAMROD_CMD_ID_ETH_CLASSIFICATION_RULES;
2014
2015                 /* Exe Queue */
2016                 bnx2x_exe_queue_init(bp,
2017                                      &vlan_obj->exe_queue, CLASSIFY_RULES_COUNT,
2018                                      qable_obj, bnx2x_validate_vlan_mac,
2019                                      bnx2x_remove_vlan_mac,
2020                                      bnx2x_optimize_vlan_mac,
2021                                      bnx2x_execute_vlan_mac,
2022                                      bnx2x_exeq_get_vlan);
2023         }
2024 }
2025
2026 void bnx2x_init_vlan_mac_obj(struct bnx2x *bp,
2027                              struct bnx2x_vlan_mac_obj *vlan_mac_obj,
2028                              u8 cl_id, u32 cid, u8 func_id, void *rdata,
2029                              dma_addr_t rdata_mapping, int state,
2030                              unsigned long *pstate, bnx2x_obj_type type,
2031                              struct bnx2x_credit_pool_obj *macs_pool,
2032                              struct bnx2x_credit_pool_obj *vlans_pool)
2033 {
2034         union bnx2x_qable_obj *qable_obj =
2035                 (union bnx2x_qable_obj *)vlan_mac_obj;
2036
2037         bnx2x_init_vlan_mac_common(vlan_mac_obj, cl_id, cid, func_id, rdata,
2038                                    rdata_mapping, state, pstate, type,
2039                                    macs_pool, vlans_pool);
2040
2041         /* CAM pool handling */
2042         vlan_mac_obj->get_credit = bnx2x_get_credit_vlan_mac;
2043         vlan_mac_obj->put_credit = bnx2x_put_credit_vlan_mac;
2044         /*
2045          * CAM offset is relevant for 57710 and 57711 chips only which have a
2046          * single CAM for both MACs and VLAN-MAC pairs. So the offset
2047          * will be taken from MACs' pool object only.
2048          */
2049         vlan_mac_obj->get_cam_offset = bnx2x_get_cam_offset_mac;
2050         vlan_mac_obj->put_cam_offset = bnx2x_put_cam_offset_mac;
2051
2052         if (CHIP_IS_E1(bp)) {
2053                 BNX2X_ERR("Do not support chips others than E2\n");
2054                 BUG();
2055         } else if (CHIP_IS_E1H(bp)) {
2056                 vlan_mac_obj->set_one_rule      = bnx2x_set_one_vlan_mac_e1h;
2057                 vlan_mac_obj->check_del         = bnx2x_check_vlan_mac_del;
2058                 vlan_mac_obj->check_add         = bnx2x_check_vlan_mac_add;
2059                 vlan_mac_obj->check_move        = bnx2x_check_move_always_err;
2060                 vlan_mac_obj->ramrod_cmd        = RAMROD_CMD_ID_ETH_SET_MAC;
2061
2062                 /* Exe Queue */
2063                 bnx2x_exe_queue_init(bp,
2064                                      &vlan_mac_obj->exe_queue, 1, qable_obj,
2065                                      bnx2x_validate_vlan_mac,
2066                                      bnx2x_remove_vlan_mac,
2067                                      bnx2x_optimize_vlan_mac,
2068                                      bnx2x_execute_vlan_mac,
2069                                      bnx2x_exeq_get_vlan_mac);
2070         } else {
2071                 vlan_mac_obj->set_one_rule      = bnx2x_set_one_vlan_mac_e2;
2072                 vlan_mac_obj->check_del         = bnx2x_check_vlan_mac_del;
2073                 vlan_mac_obj->check_add         = bnx2x_check_vlan_mac_add;
2074                 vlan_mac_obj->check_move        = bnx2x_check_move;
2075                 vlan_mac_obj->ramrod_cmd        =
2076                         RAMROD_CMD_ID_ETH_CLASSIFICATION_RULES;
2077
2078                 /* Exe Queue */
2079                 bnx2x_exe_queue_init(bp,
2080                                      &vlan_mac_obj->exe_queue,
2081                                      CLASSIFY_RULES_COUNT,
2082                                      qable_obj, bnx2x_validate_vlan_mac,
2083                                      bnx2x_remove_vlan_mac,
2084                                      bnx2x_optimize_vlan_mac,
2085                                      bnx2x_execute_vlan_mac,
2086                                      bnx2x_exeq_get_vlan_mac);
2087         }
2088
2089 }
2090
2091 /* RX_MODE verbs: DROP_ALL/ACCEPT_ALL/ACCEPT_ALL_MULTI/ACCEPT_ALL_VLAN/NORMAL */
2092 static inline void __storm_memset_mac_filters(struct bnx2x *bp,
2093                         struct tstorm_eth_mac_filter_config *mac_filters,
2094                         u16 pf_id)
2095 {
2096         size_t size = sizeof(struct tstorm_eth_mac_filter_config);
2097
2098         u32 addr = BAR_TSTRORM_INTMEM +
2099                         TSTORM_MAC_FILTER_CONFIG_OFFSET(pf_id);
2100
2101         __storm_memset_struct(bp, addr, size, (u32 *)mac_filters);
2102 }
2103
2104 static int bnx2x_set_rx_mode_e1x(struct bnx2x *bp,
2105                                  struct bnx2x_rx_mode_ramrod_params *p)
2106 {
2107         /* update the bp MAC filter structure  */
2108         u32 mask = (1 << p->cl_id);
2109
2110         struct tstorm_eth_mac_filter_config *mac_filters =
2111                 (struct tstorm_eth_mac_filter_config *)p->rdata;
2112
2113         /* initial seeting is drop-all */
2114         u8 drop_all_ucast = 1, drop_all_mcast = 1;
2115         u8 accp_all_ucast = 0, accp_all_bcast = 0, accp_all_mcast = 0;
2116         u8 unmatched_unicast = 0;
2117
2118     /* In e1x there we only take into account rx acceot flag since tx switching
2119      * isn't enabled. */
2120         if (test_bit(BNX2X_ACCEPT_UNICAST, &p->rx_accept_flags))
2121                 /* accept matched ucast */
2122                 drop_all_ucast = 0;
2123
2124         if (test_bit(BNX2X_ACCEPT_MULTICAST, &p->rx_accept_flags))
2125                 /* accept matched mcast */
2126                 drop_all_mcast = 0;
2127
2128         if (test_bit(BNX2X_ACCEPT_ALL_UNICAST, &p->rx_accept_flags)) {
2129                 /* accept all mcast */
2130                 drop_all_ucast = 0;
2131                 accp_all_ucast = 1;
2132         }
2133         if (test_bit(BNX2X_ACCEPT_ALL_MULTICAST, &p->rx_accept_flags)) {
2134                 /* accept all mcast */
2135                 drop_all_mcast = 0;
2136                 accp_all_mcast = 1;
2137         }
2138         if (test_bit(BNX2X_ACCEPT_BROADCAST, &p->rx_accept_flags))
2139                 /* accept (all) bcast */
2140                 accp_all_bcast = 1;
2141         if (test_bit(BNX2X_ACCEPT_UNMATCHED, &p->rx_accept_flags))
2142                 /* accept unmatched unicasts */
2143                 unmatched_unicast = 1;
2144
2145         mac_filters->ucast_drop_all = drop_all_ucast ?
2146                 mac_filters->ucast_drop_all | mask :
2147                 mac_filters->ucast_drop_all & ~mask;
2148
2149         mac_filters->mcast_drop_all = drop_all_mcast ?
2150                 mac_filters->mcast_drop_all | mask :
2151                 mac_filters->mcast_drop_all & ~mask;
2152
2153         mac_filters->ucast_accept_all = accp_all_ucast ?
2154                 mac_filters->ucast_accept_all | mask :
2155                 mac_filters->ucast_accept_all & ~mask;
2156
2157         mac_filters->mcast_accept_all = accp_all_mcast ?
2158                 mac_filters->mcast_accept_all | mask :
2159                 mac_filters->mcast_accept_all & ~mask;
2160
2161         mac_filters->bcast_accept_all = accp_all_bcast ?
2162                 mac_filters->bcast_accept_all | mask :
2163                 mac_filters->bcast_accept_all & ~mask;
2164
2165         mac_filters->unmatched_unicast = unmatched_unicast ?
2166                 mac_filters->unmatched_unicast | mask :
2167                 mac_filters->unmatched_unicast & ~mask;
2168
2169         DP(BNX2X_MSG_SP, "drop_ucast 0x%x\ndrop_mcast 0x%x\n accp_ucast 0x%x\n"
2170                                          "accp_mcast 0x%x\naccp_bcast 0x%x\n",
2171            mac_filters->ucast_drop_all, mac_filters->mcast_drop_all,
2172            mac_filters->ucast_accept_all, mac_filters->mcast_accept_all,
2173            mac_filters->bcast_accept_all);
2174
2175         /* write the MAC filter structure*/
2176         __storm_memset_mac_filters(bp, mac_filters, p->func_id);
2177
2178         /* The operation is completed */
2179         clear_bit(p->state, p->pstate);
2180         smp_mb__after_clear_bit();
2181
2182         return 0;
2183 }
2184
2185 /* Setup ramrod data */
2186 static inline void bnx2x_rx_mode_set_rdata_hdr_e2(u32 cid,
2187                                 struct eth_classify_header *hdr,
2188                                 u8 rule_cnt)
2189 {
2190         hdr->echo = cid;
2191         hdr->rule_cnt = rule_cnt;
2192 }
2193
2194 static inline void bnx2x_rx_mode_set_cmd_state_e2(struct bnx2x *bp,
2195                                 unsigned long accept_flags,
2196                                 struct eth_filter_rules_cmd *cmd,
2197                                 bool clear_accept_all)
2198 {
2199         u16 state;
2200
2201         /* start with 'drop-all' */
2202         state = ETH_FILTER_RULES_CMD_UCAST_DROP_ALL |
2203                 ETH_FILTER_RULES_CMD_MCAST_DROP_ALL;
2204
2205         if (accept_flags) {
2206                 if (test_bit(BNX2X_ACCEPT_UNICAST, &accept_flags))
2207                         state &= ~ETH_FILTER_RULES_CMD_UCAST_DROP_ALL;
2208
2209                 if (test_bit(BNX2X_ACCEPT_MULTICAST, &accept_flags))
2210                         state &= ~ETH_FILTER_RULES_CMD_MCAST_DROP_ALL;
2211
2212                 if (test_bit(BNX2X_ACCEPT_ALL_UNICAST, &accept_flags)) {
2213                         state &= ~ETH_FILTER_RULES_CMD_UCAST_DROP_ALL;
2214                         state |= ETH_FILTER_RULES_CMD_UCAST_ACCEPT_ALL;
2215                 }
2216
2217                 if (test_bit(BNX2X_ACCEPT_ALL_MULTICAST, &accept_flags)) {
2218                         state |= ETH_FILTER_RULES_CMD_MCAST_ACCEPT_ALL;
2219                         state &= ~ETH_FILTER_RULES_CMD_MCAST_DROP_ALL;
2220                 }
2221                 if (test_bit(BNX2X_ACCEPT_BROADCAST, &accept_flags))
2222                         state |= ETH_FILTER_RULES_CMD_BCAST_ACCEPT_ALL;
2223
2224                 if (test_bit(BNX2X_ACCEPT_UNMATCHED, &accept_flags)) {
2225                         state &= ~ETH_FILTER_RULES_CMD_UCAST_DROP_ALL;
2226                         state |= ETH_FILTER_RULES_CMD_UCAST_ACCEPT_UNMATCHED;
2227                 }
2228                 if (test_bit(BNX2X_ACCEPT_ANY_VLAN, &accept_flags))
2229                         state |= ETH_FILTER_RULES_CMD_ACCEPT_ANY_VLAN;
2230         }
2231
2232         /* Clear ACCEPT_ALL_XXX flags for FCoE L2 Queue */
2233         if (clear_accept_all) {
2234                 state &= ~ETH_FILTER_RULES_CMD_MCAST_ACCEPT_ALL;
2235                 state &= ~ETH_FILTER_RULES_CMD_BCAST_ACCEPT_ALL;
2236                 state &= ~ETH_FILTER_RULES_CMD_UCAST_ACCEPT_ALL;
2237                 state &= ~ETH_FILTER_RULES_CMD_UCAST_ACCEPT_UNMATCHED;
2238         }
2239
2240         cmd->state = cpu_to_le16(state);
2241
2242 }
2243
2244 static int bnx2x_set_rx_mode_e2(struct bnx2x *bp,
2245                                 struct bnx2x_rx_mode_ramrod_params *p)
2246 {
2247         struct eth_filter_rules_ramrod_data *data = p->rdata;
2248         int rc;
2249         u8 rule_idx = 0;
2250
2251         /* Reset the ramrod data buffer */
2252         memset(data, 0, sizeof(*data));
2253
2254         /* Setup ramrod data */
2255
2256         /* Tx (internal switching) */
2257         if (test_bit(RAMROD_TX, &p->ramrod_flags)) {
2258                 data->rules[rule_idx].client_id = p->cl_id;
2259                 data->rules[rule_idx].func_id = p->func_id;
2260
2261                 data->rules[rule_idx].cmd_general_data =
2262                         ETH_FILTER_RULES_CMD_TX_CMD;
2263
2264                 bnx2x_rx_mode_set_cmd_state_e2(bp, p->tx_accept_flags,
2265                         &(data->rules[rule_idx++]), false);
2266         }
2267
2268         /* Rx */
2269         if (test_bit(RAMROD_RX, &p->ramrod_flags)) {
2270                 data->rules[rule_idx].client_id = p->cl_id;
2271                 data->rules[rule_idx].func_id = p->func_id;
2272
2273                 data->rules[rule_idx].cmd_general_data =
2274                         ETH_FILTER_RULES_CMD_RX_CMD;
2275
2276                 bnx2x_rx_mode_set_cmd_state_e2(bp, p->rx_accept_flags,
2277                         &(data->rules[rule_idx++]), false);
2278         }
2279
2280
2281         /*
2282          * If FCoE Queue configuration has been requested configure the Rx and
2283          * internal switching modes for this queue in separate rules.
2284          *
2285          * FCoE queue shell never be set to ACCEPT_ALL packets of any sort:
2286          * MCAST_ALL, UCAST_ALL, BCAST_ALL and UNMATCHED.
2287          */
2288         if (test_bit(BNX2X_RX_MODE_FCOE_ETH, &p->rx_mode_flags)) {
2289                 /*  Tx (internal switching) */
2290                 if (test_bit(RAMROD_TX, &p->ramrod_flags)) {
2291                         data->rules[rule_idx].client_id = bnx2x_fcoe(bp, cl_id);
2292                         data->rules[rule_idx].func_id = p->func_id;
2293
2294                         data->rules[rule_idx].cmd_general_data =
2295                                                 ETH_FILTER_RULES_CMD_TX_CMD;
2296
2297                         bnx2x_rx_mode_set_cmd_state_e2(bp, p->tx_accept_flags,
2298                                                      &(data->rules[rule_idx++]),
2299                                                        true);
2300                 }
2301
2302                 /* Rx */
2303                 if (test_bit(RAMROD_RX, &p->ramrod_flags)) {
2304                         data->rules[rule_idx].client_id = bnx2x_fcoe(bp, cl_id);
2305                         data->rules[rule_idx].func_id = p->func_id;
2306
2307                         data->rules[rule_idx].cmd_general_data =
2308                                                 ETH_FILTER_RULES_CMD_RX_CMD;
2309
2310                         bnx2x_rx_mode_set_cmd_state_e2(bp, p->rx_accept_flags,
2311                                                      &(data->rules[rule_idx++]),
2312                                                        true);
2313                 }
2314         }
2315
2316         /*
2317          * Set the ramrod header (most importantly - number of rules to
2318          * configure).
2319          */
2320         bnx2x_rx_mode_set_rdata_hdr_e2(p->cid, &data->header, rule_idx);
2321
2322         DP(BNX2X_MSG_SP, "About to configure %d rules, rx_accept_flags 0x%lx, tx_accept_flags 0x%lx\n",
2323                          data->header.rule_cnt, p->rx_accept_flags,
2324                          p->tx_accept_flags);
2325
2326         /*
2327          *  No need for an explicit memory barrier here as long we would
2328          *  need to ensure the ordering of writing to the SPQ element
2329          *  and updating of the SPQ producer which involves a memory
2330          *  read and we will have to put a full memory barrier there
2331          *  (inside bnx2x_sp_post()).
2332          */
2333
2334         /* Send a ramrod */
2335         rc = bnx2x_sp_post(bp, RAMROD_CMD_ID_ETH_FILTER_RULES, p->cid,
2336                            U64_HI(p->rdata_mapping),
2337                            U64_LO(p->rdata_mapping),
2338                            ETH_CONNECTION_TYPE);
2339         if (rc)
2340                 return rc;
2341
2342         /* Ramrod completion is pending */
2343         return 1;
2344 }
2345
2346 static int bnx2x_wait_rx_mode_comp_e2(struct bnx2x *bp,
2347                                       struct bnx2x_rx_mode_ramrod_params *p)
2348 {
2349         return bnx2x_state_wait(bp, p->state, p->pstate);
2350 }
2351
2352 static int bnx2x_empty_rx_mode_wait(struct bnx2x *bp,
2353                                     struct bnx2x_rx_mode_ramrod_params *p)
2354 {
2355         /* Do nothing */
2356         return 0;
2357 }
2358
2359 int bnx2x_config_rx_mode(struct bnx2x *bp,
2360                          struct bnx2x_rx_mode_ramrod_params *p)
2361 {
2362         int rc;
2363
2364         /* Configure the new classification in the chip */
2365         rc = p->rx_mode_obj->config_rx_mode(bp, p);
2366         if (rc < 0)
2367                 return rc;
2368
2369         /* Wait for a ramrod completion if was requested */
2370         if (test_bit(RAMROD_COMP_WAIT, &p->ramrod_flags)) {
2371                 rc = p->rx_mode_obj->wait_comp(bp, p);
2372                 if (rc)
2373                         return rc;
2374         }
2375
2376         return rc;
2377 }
2378
2379 void bnx2x_init_rx_mode_obj(struct bnx2x *bp,
2380                             struct bnx2x_rx_mode_obj *o)
2381 {
2382         if (CHIP_IS_E1x(bp)) {
2383                 o->wait_comp      = bnx2x_empty_rx_mode_wait;
2384                 o->config_rx_mode = bnx2x_set_rx_mode_e1x;
2385         } else {
2386                 o->wait_comp      = bnx2x_wait_rx_mode_comp_e2;
2387                 o->config_rx_mode = bnx2x_set_rx_mode_e2;
2388         }
2389 }
2390
2391 /********************* Multicast verbs: SET, CLEAR ****************************/
2392 static inline u8 bnx2x_mcast_bin_from_mac(u8 *mac)
2393 {
2394         return (crc32c_le(0, mac, ETH_ALEN) >> 24) & 0xff;
2395 }
2396
2397 struct bnx2x_mcast_mac_elem {
2398         struct list_head link;
2399         u8 mac[ETH_ALEN];
2400         u8 pad[2]; /* For a natural alignment of the following buffer */
2401 };
2402
2403 struct bnx2x_pending_mcast_cmd {
2404         struct list_head link;
2405         int type; /* BNX2X_MCAST_CMD_X */
2406         union {
2407                 struct list_head macs_head;
2408                 u32 macs_num; /* Needed for DEL command */
2409                 int next_bin; /* Needed for RESTORE flow with aprox match */
2410         } data;
2411
2412         bool done; /* set to true, when the command has been handled,
2413                     * practically used in 57712 handling only, where one pending
2414                     * command may be handled in a few operations. As long as for
2415                     * other chips every operation handling is completed in a
2416                     * single ramrod, there is no need to utilize this field.
2417                     */
2418 };
2419
2420 static int bnx2x_mcast_wait(struct bnx2x *bp,
2421                             struct bnx2x_mcast_obj *o)
2422 {
2423         if (bnx2x_state_wait(bp, o->sched_state, o->raw.pstate) ||
2424                         o->raw.wait_comp(bp, &o->raw))
2425                 return -EBUSY;
2426
2427         return 0;
2428 }
2429
2430 static int bnx2x_mcast_enqueue_cmd(struct bnx2x *bp,
2431                                    struct bnx2x_mcast_obj *o,
2432                                    struct bnx2x_mcast_ramrod_params *p,
2433                                    int cmd)
2434 {
2435         int total_sz;
2436         struct bnx2x_pending_mcast_cmd *new_cmd;
2437         struct bnx2x_mcast_mac_elem *cur_mac = NULL;
2438         struct bnx2x_mcast_list_elem *pos;
2439         int macs_list_len = ((cmd == BNX2X_MCAST_CMD_ADD) ?
2440                              p->mcast_list_len : 0);
2441
2442         /* If the command is empty ("handle pending commands only"), break */
2443         if (!p->mcast_list_len)
2444                 return 0;
2445
2446         total_sz = sizeof(*new_cmd) +
2447                 macs_list_len * sizeof(struct bnx2x_mcast_mac_elem);
2448
2449         /* Add mcast is called under spin_lock, thus calling with GFP_ATOMIC */
2450         new_cmd = kzalloc(total_sz, GFP_ATOMIC);
2451
2452         if (!new_cmd)
2453                 return -ENOMEM;
2454
2455         DP(BNX2X_MSG_SP, "About to enqueue a new %d command. macs_list_len=%d\n",
2456            cmd, macs_list_len);
2457
2458         INIT_LIST_HEAD(&new_cmd->data.macs_head);
2459
2460         new_cmd->type = cmd;
2461         new_cmd->done = false;
2462
2463         switch (cmd) {
2464         case BNX2X_MCAST_CMD_ADD:
2465                 cur_mac = (struct bnx2x_mcast_mac_elem *)
2466                           ((u8 *)new_cmd + sizeof(*new_cmd));
2467
2468                 /* Push the MACs of the current command into the pendig command
2469                  * MACs list: FIFO
2470                  */
2471                 list_for_each_entry(pos, &p->mcast_list, link) {
2472                         memcpy(cur_mac->mac, pos->mac, ETH_ALEN);
2473                         list_add_tail(&cur_mac->link, &new_cmd->data.macs_head);
2474                         cur_mac++;
2475                 }
2476
2477                 break;
2478
2479         case BNX2X_MCAST_CMD_DEL:
2480                 new_cmd->data.macs_num = p->mcast_list_len;
2481                 break;
2482
2483         case BNX2X_MCAST_CMD_RESTORE:
2484                 new_cmd->data.next_bin = 0;
2485                 break;
2486
2487         default:
2488                 kfree(new_cmd);
2489                 BNX2X_ERR("Unknown command: %d\n", cmd);
2490                 return -EINVAL;
2491         }
2492
2493         /* Push the new pending command to the tail of the pending list: FIFO */
2494         list_add_tail(&new_cmd->link, &o->pending_cmds_head);
2495
2496         o->set_sched(o);
2497
2498         return 1;
2499 }
2500
2501 /**
2502  * bnx2x_mcast_get_next_bin - get the next set bin (index)
2503  *
2504  * @o:
2505  * @last:       index to start looking from (including)
2506  *
2507  * returns the next found (set) bin or a negative value if none is found.
2508  */
2509 static inline int bnx2x_mcast_get_next_bin(struct bnx2x_mcast_obj *o, int last)
2510 {
2511         int i, j, inner_start = last % BIT_VEC64_ELEM_SZ;
2512
2513         for (i = last / BIT_VEC64_ELEM_SZ; i < BNX2X_MCAST_VEC_SZ; i++) {
2514                 if (o->registry.aprox_match.vec[i])
2515                         for (j = inner_start; j < BIT_VEC64_ELEM_SZ; j++) {
2516                                 int cur_bit = j + BIT_VEC64_ELEM_SZ * i;
2517                                 if (BIT_VEC64_TEST_BIT(o->registry.aprox_match.
2518                                                        vec, cur_bit)) {
2519                                         return cur_bit;
2520                                 }
2521                         }
2522                 inner_start = 0;
2523         }
2524
2525         /* None found */
2526         return -1;
2527 }
2528
2529 /**
2530  * bnx2x_mcast_clear_first_bin - find the first set bin and clear it
2531  *
2532  * @o:
2533  *
2534  * returns the index of the found bin or -1 if none is found
2535  */
2536 static inline int bnx2x_mcast_clear_first_bin(struct bnx2x_mcast_obj *o)
2537 {
2538         int cur_bit = bnx2x_mcast_get_next_bin(o, 0);
2539
2540         if (cur_bit >= 0)
2541                 BIT_VEC64_CLEAR_BIT(o->registry.aprox_match.vec, cur_bit);
2542
2543         return cur_bit;
2544 }
2545
2546 static inline u8 bnx2x_mcast_get_rx_tx_flag(struct bnx2x_mcast_obj *o)
2547 {
2548         struct bnx2x_raw_obj *raw = &o->raw;
2549         u8 rx_tx_flag = 0;
2550
2551         if ((raw->obj_type == BNX2X_OBJ_TYPE_TX) ||
2552             (raw->obj_type == BNX2X_OBJ_TYPE_RX_TX))
2553                 rx_tx_flag |= ETH_MULTICAST_RULES_CMD_TX_CMD;
2554
2555         if ((raw->obj_type == BNX2X_OBJ_TYPE_RX) ||
2556             (raw->obj_type == BNX2X_OBJ_TYPE_RX_TX))
2557                 rx_tx_flag |= ETH_MULTICAST_RULES_CMD_RX_CMD;
2558
2559         return rx_tx_flag;
2560 }
2561
2562 static void bnx2x_mcast_set_one_rule_e2(struct bnx2x *bp,
2563                                         struct bnx2x_mcast_obj *o, int idx,
2564                                         union bnx2x_mcast_config_data *cfg_data,
2565                                         int cmd)
2566 {
2567         struct bnx2x_raw_obj *r = &o->raw;
2568         struct eth_multicast_rules_ramrod_data *data =
2569                 (struct eth_multicast_rules_ramrod_data *)(r->rdata);
2570         u8 func_id = r->func_id;
2571         u8 rx_tx_add_flag = bnx2x_mcast_get_rx_tx_flag(o);
2572         int bin;
2573
2574         if ((cmd == BNX2X_MCAST_CMD_ADD) || (cmd == BNX2X_MCAST_CMD_RESTORE))
2575                 rx_tx_add_flag |= ETH_MULTICAST_RULES_CMD_IS_ADD;
2576
2577         data->rules[idx].cmd_general_data |= rx_tx_add_flag;
2578
2579         /* Get a bin and update a bins' vector */
2580         switch (cmd) {
2581         case BNX2X_MCAST_CMD_ADD:
2582                 bin = bnx2x_mcast_bin_from_mac(cfg_data->mac);
2583                 BIT_VEC64_SET_BIT(o->registry.aprox_match.vec, bin);
2584                 break;
2585
2586         case BNX2X_MCAST_CMD_DEL:
2587                 /* If there were no more bins to clear
2588                  * (bnx2x_mcast_clear_first_bin() returns -1) then we would
2589                  * clear any (0xff) bin.
2590                  * See bnx2x_mcast_validate_e2() for explanation when it may
2591                  * happen.
2592                  */
2593                 bin = bnx2x_mcast_clear_first_bin(o);
2594                 break;
2595
2596         case BNX2X_MCAST_CMD_RESTORE:
2597                 bin = cfg_data->bin;
2598                 break;
2599
2600         default:
2601                 BNX2X_ERR("Unknown command: %d\n", cmd);
2602                 return;
2603         }
2604
2605         DP(BNX2X_MSG_SP, "%s bin %d\n",
2606                          ((rx_tx_add_flag & ETH_MULTICAST_RULES_CMD_IS_ADD) ?
2607                          "Setting"  : "Clearing"), bin);
2608
2609         data->rules[idx].bin_id    = (u8)bin;
2610         data->rules[idx].func_id   = func_id;
2611         data->rules[idx].engine_id = o->engine_id;
2612 }
2613
2614 /**
2615  * bnx2x_mcast_handle_restore_cmd_e2 - restore configuration from the registry
2616  *
2617  * @bp:         device handle
2618  * @o:
2619  * @start_bin:  index in the registry to start from (including)
2620  * @rdata_idx:  index in the ramrod data to start from
2621  *
2622  * returns last handled bin index or -1 if all bins have been handled
2623  */
2624 static inline int bnx2x_mcast_handle_restore_cmd_e2(
2625         struct bnx2x *bp, struct bnx2x_mcast_obj *o , int start_bin,
2626         int *rdata_idx)
2627 {
2628         int cur_bin, cnt = *rdata_idx;
2629         union bnx2x_mcast_config_data cfg_data = {0};
2630
2631         /* go through the registry and configure the bins from it */
2632         for (cur_bin = bnx2x_mcast_get_next_bin(o, start_bin); cur_bin >= 0;
2633             cur_bin = bnx2x_mcast_get_next_bin(o, cur_bin + 1)) {
2634
2635                 cfg_data.bin = (u8)cur_bin;
2636                 o->set_one_rule(bp, o, cnt, &cfg_data,
2637                                 BNX2X_MCAST_CMD_RESTORE);
2638
2639                 cnt++;
2640
2641                 DP(BNX2X_MSG_SP, "About to configure a bin %d\n", cur_bin);
2642
2643                 /* Break if we reached the maximum number
2644                  * of rules.
2645                  */
2646                 if (cnt >= o->max_cmd_len)
2647                         break;
2648         }
2649
2650         *rdata_idx = cnt;
2651
2652         return cur_bin;
2653 }
2654
2655 static inline void bnx2x_mcast_hdl_pending_add_e2(struct bnx2x *bp,
2656         struct bnx2x_mcast_obj *o, struct bnx2x_pending_mcast_cmd *cmd_pos,
2657         int *line_idx)
2658 {
2659         struct bnx2x_mcast_mac_elem *pmac_pos, *pmac_pos_n;
2660         int cnt = *line_idx;
2661         union bnx2x_mcast_config_data cfg_data = {0};
2662
2663         list_for_each_entry_safe(pmac_pos, pmac_pos_n, &cmd_pos->data.macs_head,
2664                                  link) {
2665
2666                 cfg_data.mac = &pmac_pos->mac[0];
2667                 o->set_one_rule(bp, o, cnt, &cfg_data, cmd_pos->type);
2668
2669                 cnt++;
2670
2671                 DP(BNX2X_MSG_SP, "About to configure %pM mcast MAC\n",
2672                    pmac_pos->mac);
2673
2674                 list_del(&pmac_pos->link);
2675
2676                 /* Break if we reached the maximum number
2677                  * of rules.
2678                  */
2679                 if (cnt >= o->max_cmd_len)
2680                         break;
2681         }
2682
2683         *line_idx = cnt;
2684
2685         /* if no more MACs to configure - we are done */
2686         if (list_empty(&cmd_pos->data.macs_head))
2687                 cmd_pos->done = true;
2688 }
2689
2690 static inline void bnx2x_mcast_hdl_pending_del_e2(struct bnx2x *bp,
2691         struct bnx2x_mcast_obj *o, struct bnx2x_pending_mcast_cmd *cmd_pos,
2692         int *line_idx)
2693 {
2694         int cnt = *line_idx;
2695
2696         while (cmd_pos->data.macs_num) {
2697                 o->set_one_rule(bp, o, cnt, NULL, cmd_pos->type);
2698
2699                 cnt++;
2700
2701                 cmd_pos->data.macs_num--;
2702
2703                   DP(BNX2X_MSG_SP, "Deleting MAC. %d left,cnt is %d\n",
2704                                    cmd_pos->data.macs_num, cnt);
2705
2706                 /* Break if we reached the maximum
2707                  * number of rules.
2708                  */
2709                 if (cnt >= o->max_cmd_len)
2710                         break;
2711         }
2712
2713         *line_idx = cnt;
2714
2715         /* If we cleared all bins - we are done */
2716         if (!cmd_pos->data.macs_num)
2717                 cmd_pos->done = true;
2718 }
2719
2720 static inline void bnx2x_mcast_hdl_pending_restore_e2(struct bnx2x *bp,
2721         struct bnx2x_mcast_obj *o, struct bnx2x_pending_mcast_cmd *cmd_pos,
2722         int *line_idx)
2723 {
2724         cmd_pos->data.next_bin = o->hdl_restore(bp, o, cmd_pos->data.next_bin,
2725                                                 line_idx);
2726
2727         if (cmd_pos->data.next_bin < 0)
2728                 /* If o->set_restore returned -1 we are done */
2729                 cmd_pos->done = true;
2730         else
2731                 /* Start from the next bin next time */
2732                 cmd_pos->data.next_bin++;
2733 }
2734
2735 static inline int bnx2x_mcast_handle_pending_cmds_e2(struct bnx2x *bp,
2736                                 struct bnx2x_mcast_ramrod_params *p)
2737 {
2738         struct bnx2x_pending_mcast_cmd *cmd_pos, *cmd_pos_n;
2739         int cnt = 0;
2740         struct bnx2x_mcast_obj *o = p->mcast_obj;
2741
2742         list_for_each_entry_safe(cmd_pos, cmd_pos_n, &o->pending_cmds_head,
2743                                  link) {
2744                 switch (cmd_pos->type) {
2745                 case BNX2X_MCAST_CMD_ADD:
2746                         bnx2x_mcast_hdl_pending_add_e2(bp, o, cmd_pos, &cnt);
2747                         break;
2748
2749                 case BNX2X_MCAST_CMD_DEL:
2750                         bnx2x_mcast_hdl_pending_del_e2(bp, o, cmd_pos, &cnt);
2751                         break;
2752
2753                 case BNX2X_MCAST_CMD_RESTORE:
2754                         bnx2x_mcast_hdl_pending_restore_e2(bp, o, cmd_pos,
2755                                                            &cnt);
2756                         break;
2757
2758                 default:
2759                         BNX2X_ERR("Unknown command: %d\n", cmd_pos->type);
2760                         return -EINVAL;
2761                 }
2762
2763                 /* If the command has been completed - remove it from the list
2764                  * and free the memory
2765                  */
2766                 if (cmd_pos->done) {
2767                         list_del(&cmd_pos->link);
2768                         kfree(cmd_pos);
2769                 }
2770
2771                 /* Break if we reached the maximum number of rules */
2772                 if (cnt >= o->max_cmd_len)
2773                         break;
2774         }
2775
2776         return cnt;
2777 }
2778
2779 static inline void bnx2x_mcast_hdl_add(struct bnx2x *bp,
2780         struct bnx2x_mcast_obj *o, struct bnx2x_mcast_ramrod_params *p,
2781         int *line_idx)
2782 {
2783         struct bnx2x_mcast_list_elem *mlist_pos;
2784         union bnx2x_mcast_config_data cfg_data = {0};
2785         int cnt = *line_idx;
2786
2787         list_for_each_entry(mlist_pos, &p->mcast_list, link) {
2788                 cfg_data.mac = mlist_pos->mac;
2789                 o->set_one_rule(bp, o, cnt, &cfg_data, BNX2X_MCAST_CMD_ADD);
2790
2791                 cnt++;
2792
2793                 DP(BNX2X_MSG_SP, "About to configure %pM mcast MAC\n",
2794                                  mlist_pos->mac);
2795         }
2796
2797         *line_idx = cnt;
2798 }
2799
2800 static inline void bnx2x_mcast_hdl_del(struct bnx2x *bp,
2801         struct bnx2x_mcast_obj *o, struct bnx2x_mcast_ramrod_params *p,
2802         int *line_idx)
2803 {
2804         int cnt = *line_idx, i;
2805
2806         for (i = 0; i < p->mcast_list_len; i++) {
2807                 o->set_one_rule(bp, o, cnt, NULL, BNX2X_MCAST_CMD_DEL);
2808
2809                 cnt++;
2810
2811                 DP(BNX2X_MSG_SP, "Deleting MAC. %d left\n",
2812                                  p->mcast_list_len - i - 1);
2813         }
2814
2815         *line_idx = cnt;
2816 }
2817
2818 /**
2819  * bnx2x_mcast_handle_current_cmd -
2820  *
2821  * @bp:         device handle
2822  * @p:
2823  * @cmd:
2824  * @start_cnt:  first line in the ramrod data that may be used
2825  *
2826  * This function is called iff there is enough place for the current command in
2827  * the ramrod data.
2828  * Returns number of lines filled in the ramrod data in total.
2829  */
2830 static inline int bnx2x_mcast_handle_current_cmd(struct bnx2x *bp,
2831                         struct bnx2x_mcast_ramrod_params *p, int cmd,
2832                         int start_cnt)
2833 {
2834         struct bnx2x_mcast_obj *o = p->mcast_obj;
2835         int cnt = start_cnt;
2836
2837         DP(BNX2X_MSG_SP, "p->mcast_list_len=%d\n", p->mcast_list_len);
2838
2839         switch (cmd) {
2840         case BNX2X_MCAST_CMD_ADD:
2841                 bnx2x_mcast_hdl_add(bp, o, p, &cnt);
2842                 break;
2843
2844         case BNX2X_MCAST_CMD_DEL:
2845                 bnx2x_mcast_hdl_del(bp, o, p, &cnt);
2846                 break;
2847
2848         case BNX2X_MCAST_CMD_RESTORE:
2849                 o->hdl_restore(bp, o, 0, &cnt);
2850                 break;
2851
2852         default:
2853                 BNX2X_ERR("Unknown command: %d\n", cmd);
2854                 return -EINVAL;
2855         }
2856
2857         /* The current command has been handled */
2858         p->mcast_list_len = 0;
2859
2860         return cnt;
2861 }
2862
2863 static int bnx2x_mcast_validate_e2(struct bnx2x *bp,
2864                                    struct bnx2x_mcast_ramrod_params *p,
2865                                    int cmd)
2866 {
2867         struct bnx2x_mcast_obj *o = p->mcast_obj;
2868         int reg_sz = o->get_registry_size(o);
2869
2870         switch (cmd) {
2871         /* DEL command deletes all currently configured MACs */
2872         case BNX2X_MCAST_CMD_DEL:
2873                 o->set_registry_size(o, 0);
2874                 /* Don't break */
2875
2876         /* RESTORE command will restore the entire multicast configuration */
2877         case BNX2X_MCAST_CMD_RESTORE:
2878                 /* Here we set the approximate amount of work to do, which in
2879                  * fact may be only less as some MACs in postponed ADD
2880                  * command(s) scheduled before this command may fall into
2881                  * the same bin and the actual number of bins set in the
2882                  * registry would be less than we estimated here. See
2883                  * bnx2x_mcast_set_one_rule_e2() for further details.
2884                  */
2885                 p->mcast_list_len = reg_sz;
2886                 break;
2887
2888         case BNX2X_MCAST_CMD_ADD:
2889         case BNX2X_MCAST_CMD_CONT:
2890                 /* Here we assume that all new MACs will fall into new bins.
2891                  * However we will correct the real registry size after we
2892                  * handle all pending commands.
2893                  */
2894                 o->set_registry_size(o, reg_sz + p->mcast_list_len);
2895                 break;
2896
2897         default:
2898                 BNX2X_ERR("Unknown command: %d\n", cmd);
2899                 return -EINVAL;
2900
2901         }
2902
2903         /* Increase the total number of MACs pending to be configured */
2904         o->total_pending_num += p->mcast_list_len;
2905
2906         return 0;
2907 }
2908
2909 static void bnx2x_mcast_revert_e2(struct bnx2x *bp,
2910                                       struct bnx2x_mcast_ramrod_params *p,
2911                                       int old_num_bins)
2912 {
2913         struct bnx2x_mcast_obj *o = p->mcast_obj;
2914
2915         o->set_registry_size(o, old_num_bins);
2916         o->total_pending_num -= p->mcast_list_len;
2917 }
2918
2919 /**
2920  * bnx2x_mcast_set_rdata_hdr_e2 - sets a header values
2921  *
2922  * @bp:         device handle
2923  * @p:
2924  * @len:        number of rules to handle
2925  */
2926 static inline void bnx2x_mcast_set_rdata_hdr_e2(struct bnx2x *bp,
2927                                         struct bnx2x_mcast_ramrod_params *p,
2928                                         u8 len)
2929 {
2930         struct bnx2x_raw_obj *r = &p->mcast_obj->raw;
2931         struct eth_multicast_rules_ramrod_data *data =
2932                 (struct eth_multicast_rules_ramrod_data *)(r->rdata);
2933
2934         data->header.echo = ((r->cid & BNX2X_SWCID_MASK) |
2935                           (BNX2X_FILTER_MCAST_PENDING << BNX2X_SWCID_SHIFT));
2936         data->header.rule_cnt = len;
2937 }
2938
2939 /**
2940  * bnx2x_mcast_refresh_registry_e2 - recalculate the actual number of set bins
2941  *
2942  * @bp:         device handle
2943  * @o:
2944  *
2945  * Recalculate the actual number of set bins in the registry using Brian
2946  * Kernighan's algorithm: it's execution complexity is as a number of set bins.
2947  *
2948  * returns 0 for the compliance with bnx2x_mcast_refresh_registry_e1().
2949  */
2950 static inline int bnx2x_mcast_refresh_registry_e2(struct bnx2x *bp,
2951                                                   struct bnx2x_mcast_obj *o)
2952 {
2953         int i, cnt = 0;
2954         u64 elem;
2955
2956         for (i = 0; i < BNX2X_MCAST_VEC_SZ; i++) {
2957                 elem = o->registry.aprox_match.vec[i];
2958                 for (; elem; cnt++)
2959                         elem &= elem - 1;
2960         }
2961
2962         o->set_registry_size(o, cnt);
2963
2964         return 0;
2965 }
2966
2967 static int bnx2x_mcast_setup_e2(struct bnx2x *bp,
2968                                 struct bnx2x_mcast_ramrod_params *p,
2969                                 int cmd)
2970 {
2971         struct bnx2x_raw_obj *raw = &p->mcast_obj->raw;
2972         struct bnx2x_mcast_obj *o = p->mcast_obj;
2973         struct eth_multicast_rules_ramrod_data *data =
2974                 (struct eth_multicast_rules_ramrod_data *)(raw->rdata);
2975         int cnt = 0, rc;
2976
2977         /* Reset the ramrod data buffer */
2978         memset(data, 0, sizeof(*data));
2979
2980         cnt = bnx2x_mcast_handle_pending_cmds_e2(bp, p);
2981
2982         /* If there are no more pending commands - clear SCHEDULED state */
2983         if (list_empty(&o->pending_cmds_head))
2984                 o->clear_sched(o);
2985
2986         /* The below may be true iff there was enough room in ramrod
2987          * data for all pending commands and for the current
2988          * command. Otherwise the current command would have been added
2989          * to the pending commands and p->mcast_list_len would have been
2990          * zeroed.
2991          */
2992         if (p->mcast_list_len > 0)
2993                 cnt = bnx2x_mcast_handle_current_cmd(bp, p, cmd, cnt);
2994
2995         /* We've pulled out some MACs - update the total number of
2996          * outstanding.
2997          */
2998         o->total_pending_num -= cnt;
2999
3000         /* send a ramrod */
3001         WARN_ON(o->total_pending_num < 0);
3002         WARN_ON(cnt > o->max_cmd_len);
3003
3004         bnx2x_mcast_set_rdata_hdr_e2(bp, p, (u8)cnt);
3005
3006         /* Update a registry size if there are no more pending operations.
3007          *
3008          * We don't want to change the value of the registry size if there are
3009          * pending operations because we want it to always be equal to the
3010          * exact or the approximate number (see bnx2x_mcast_validate_e2()) of
3011          * set bins after the last requested operation in order to properly
3012          * evaluate the size of the next DEL/RESTORE operation.
3013          *
3014          * Note that we update the registry itself during command(s) handling
3015          * - see bnx2x_mcast_set_one_rule_e2(). That's because for 57712 we
3016          * aggregate multiple commands (ADD/DEL/RESTORE) into one ramrod but
3017          * with a limited amount of update commands (per MAC/bin) and we don't
3018          * know in this scope what the actual state of bins configuration is
3019          * going to be after this ramrod.
3020          */
3021         if (!o->total_pending_num)
3022                 bnx2x_mcast_refresh_registry_e2(bp, o);
3023
3024         /*
3025          * If CLEAR_ONLY was requested - don't send a ramrod and clear
3026          * RAMROD_PENDING status immediately.
3027          */
3028         if (test_bit(RAMROD_DRV_CLR_ONLY, &p->ramrod_flags)) {
3029                 raw->clear_pending(raw);
3030                 return 0;
3031         } else {
3032                 /*
3033                  *  No need for an explicit memory barrier here as long we would
3034                  *  need to ensure the ordering of writing to the SPQ element
3035                  *  and updating of the SPQ producer which involves a memory
3036                  *  read and we will have to put a full memory barrier there
3037                  *  (inside bnx2x_sp_post()).
3038                  */
3039
3040                 /* Send a ramrod */
3041                 rc = bnx2x_sp_post(bp, RAMROD_CMD_ID_ETH_MULTICAST_RULES,
3042                                    raw->cid, U64_HI(raw->rdata_mapping),
3043                                    U64_LO(raw->rdata_mapping),
3044                                    ETH_CONNECTION_TYPE);
3045                 if (rc)
3046                         return rc;
3047
3048                 /* Ramrod completion is pending */
3049                 return 1;
3050         }
3051 }
3052
3053 static int bnx2x_mcast_validate_e1h(struct bnx2x *bp,
3054                                     struct bnx2x_mcast_ramrod_params *p,
3055                                     int cmd)
3056 {
3057         /* Mark, that there is a work to do */
3058         if ((cmd == BNX2X_MCAST_CMD_DEL) || (cmd == BNX2X_MCAST_CMD_RESTORE))
3059                 p->mcast_list_len = 1;
3060
3061         return 0;
3062 }
3063
3064 static void bnx2x_mcast_revert_e1h(struct bnx2x *bp,
3065                                        struct bnx2x_mcast_ramrod_params *p,
3066                                        int old_num_bins)
3067 {
3068         /* Do nothing */
3069 }
3070
3071 #define BNX2X_57711_SET_MC_FILTER(filter, bit) \
3072 do { \
3073         (filter)[(bit) >> 5] |= (1 << ((bit) & 0x1f)); \
3074 } while (0)
3075
3076 static inline void bnx2x_mcast_hdl_add_e1h(struct bnx2x *bp,
3077                                            struct bnx2x_mcast_obj *o,
3078                                            struct bnx2x_mcast_ramrod_params *p,
3079                                            u32 *mc_filter)
3080 {
3081         struct bnx2x_mcast_list_elem *mlist_pos;
3082         int bit;
3083
3084         list_for_each_entry(mlist_pos, &p->mcast_list, link) {
3085                 bit = bnx2x_mcast_bin_from_mac(mlist_pos->mac);
3086                 BNX2X_57711_SET_MC_FILTER(mc_filter, bit);
3087
3088                 DP(BNX2X_MSG_SP, "About to configure %pM mcast MAC, bin %d\n",
3089                                  mlist_pos->mac, bit);
3090
3091                 /* bookkeeping... */
3092                 BIT_VEC64_SET_BIT(o->registry.aprox_match.vec,
3093                                   bit);
3094         }
3095 }
3096
3097 static inline void bnx2x_mcast_hdl_restore_e1h(struct bnx2x *bp,
3098         struct bnx2x_mcast_obj *o, struct bnx2x_mcast_ramrod_params *p,
3099         u32 *mc_filter)
3100 {
3101         int bit;
3102
3103         for (bit = bnx2x_mcast_get_next_bin(o, 0);
3104              bit >= 0;
3105              bit = bnx2x_mcast_get_next_bin(o, bit + 1)) {
3106                 BNX2X_57711_SET_MC_FILTER(mc_filter, bit);
3107                 DP(BNX2X_MSG_SP, "About to set bin %d\n", bit);
3108         }
3109 }
3110
3111 /* On 57711 we write the multicast MACs' aproximate match
3112  * table by directly into the TSTORM's internal RAM. So we don't
3113  * really need to handle any tricks to make it work.
3114  */
3115 static int bnx2x_mcast_setup_e1h(struct bnx2x *bp,
3116                                  struct bnx2x_mcast_ramrod_params *p,
3117                                  int cmd)
3118 {
3119         int i;
3120         struct bnx2x_mcast_obj *o = p->mcast_obj;
3121         struct bnx2x_raw_obj *r = &o->raw;
3122
3123         /* If CLEAR_ONLY has been requested - clear the registry
3124          * and clear a pending bit.
3125          */
3126         if (!test_bit(RAMROD_DRV_CLR_ONLY, &p->ramrod_flags)) {
3127                 u32 mc_filter[MC_HASH_SIZE] = {0};
3128
3129                 /* Set the multicast filter bits before writing it into
3130                  * the internal memory.
3131                  */
3132                 switch (cmd) {
3133                 case BNX2X_MCAST_CMD_ADD:
3134                         bnx2x_mcast_hdl_add_e1h(bp, o, p, mc_filter);
3135                         break;
3136
3137                 case BNX2X_MCAST_CMD_DEL:
3138                         DP(BNX2X_MSG_SP,
3139                            "Invalidating multicast MACs configuration\n");
3140
3141                         /* clear the registry */
3142                         memset(o->registry.aprox_match.vec, 0,
3143                                sizeof(o->registry.aprox_match.vec));
3144                         break;
3145
3146                 case BNX2X_MCAST_CMD_RESTORE:
3147                         bnx2x_mcast_hdl_restore_e1h(bp, o, p, mc_filter);
3148                         break;
3149
3150                 default:
3151                         BNX2X_ERR("Unknown command: %d\n", cmd);
3152                         return -EINVAL;
3153                 }
3154
3155                 /* Set the mcast filter in the internal memory */
3156                 for (i = 0; i < MC_HASH_SIZE; i++)
3157                         REG_WR(bp, MC_HASH_OFFSET(bp, i), mc_filter[i]);
3158         } else
3159                 /* clear the registry */
3160                 memset(o->registry.aprox_match.vec, 0,
3161                        sizeof(o->registry.aprox_match.vec));
3162
3163         /* We are done */
3164         r->clear_pending(r);
3165
3166         return 0;
3167 }
3168
3169 static int bnx2x_mcast_validate_e1(struct bnx2x *bp,
3170                                    struct bnx2x_mcast_ramrod_params *p,
3171                                    int cmd)
3172 {
3173         struct bnx2x_mcast_obj *o = p->mcast_obj;
3174         int reg_sz = o->get_registry_size(o);
3175
3176         switch (cmd) {
3177         /* DEL command deletes all currently configured MACs */
3178         case BNX2X_MCAST_CMD_DEL:
3179                 o->set_registry_size(o, 0);
3180                 /* Don't break */
3181
3182         /* RESTORE command will restore the entire multicast configuration */
3183         case BNX2X_MCAST_CMD_RESTORE:
3184                 p->mcast_list_len = reg_sz;
3185                   DP(BNX2X_MSG_SP, "Command %d, p->mcast_list_len=%d\n",
3186                                    cmd, p->mcast_list_len);
3187                 break;
3188
3189         case BNX2X_MCAST_CMD_ADD:
3190         case BNX2X_MCAST_CMD_CONT:
3191                 /* Multicast MACs on 57710 are configured as unicast MACs and
3192                  * there is only a limited number of CAM entries for that
3193                  * matter.
3194                  */
3195                 if (p->mcast_list_len > o->max_cmd_len) {
3196                         BNX2X_ERR("Can't configure more than %d multicast MACs on 57710\n",
3197                                   o->max_cmd_len);
3198                         return -EINVAL;
3199                 }
3200                 /* Every configured MAC should be cleared if DEL command is
3201                  * called. Only the last ADD command is relevant as long as
3202                  * every ADD commands overrides the previous configuration.
3203                  */
3204                 DP(BNX2X_MSG_SP, "p->mcast_list_len=%d\n", p->mcast_list_len);
3205                 if (p->mcast_list_len > 0)
3206                         o->set_registry_size(o, p->mcast_list_len);
3207
3208                 break;
3209
3210         default:
3211                 BNX2X_ERR("Unknown command: %d\n", cmd);
3212                 return -EINVAL;
3213
3214         }
3215
3216         /* We want to ensure that commands are executed one by one for 57710.
3217          * Therefore each none-empty command will consume o->max_cmd_len.
3218          */
3219         if (p->mcast_list_len)
3220                 o->total_pending_num += o->max_cmd_len;
3221
3222         return 0;
3223 }
3224
3225 static void bnx2x_mcast_revert_e1(struct bnx2x *bp,
3226                                       struct bnx2x_mcast_ramrod_params *p,
3227                                       int old_num_macs)
3228 {
3229         struct bnx2x_mcast_obj *o = p->mcast_obj;
3230
3231         o->set_registry_size(o, old_num_macs);
3232
3233         /* If current command hasn't been handled yet and we are
3234          * here means that it's meant to be dropped and we have to
3235          * update the number of outstandling MACs accordingly.
3236          */
3237         if (p->mcast_list_len)
3238                 o->total_pending_num -= o->max_cmd_len;
3239 }
3240
3241 static void bnx2x_mcast_set_one_rule_e1(struct bnx2x *bp,
3242                                         struct bnx2x_mcast_obj *o, int idx,
3243                                         union bnx2x_mcast_config_data *cfg_data,
3244                                         int cmd)
3245 {
3246         struct bnx2x_raw_obj *r = &o->raw;
3247         struct mac_configuration_cmd *data =
3248                 (struct mac_configuration_cmd *)(r->rdata);
3249
3250         /* copy mac */
3251         if ((cmd == BNX2X_MCAST_CMD_ADD) || (cmd == BNX2X_MCAST_CMD_RESTORE)) {
3252                 bnx2x_set_fw_mac_addr(&data->config_table[idx].msb_mac_addr,
3253                                       &data->config_table[idx].middle_mac_addr,
3254                                       &data->config_table[idx].lsb_mac_addr,
3255                                       cfg_data->mac);
3256
3257                 data->config_table[idx].vlan_id = 0;
3258                 data->config_table[idx].pf_id = r->func_id;
3259                 data->config_table[idx].clients_bit_vector =
3260                         cpu_to_le32(1 << r->cl_id);
3261
3262                 SET_FLAG(data->config_table[idx].flags,
3263                          MAC_CONFIGURATION_ENTRY_ACTION_TYPE,
3264                          T_ETH_MAC_COMMAND_SET);
3265         }
3266 }
3267
3268 /**
3269  * bnx2x_mcast_set_rdata_hdr_e1  - set header values in mac_configuration_cmd
3270  *
3271  * @bp:         device handle
3272  * @p:
3273  * @len:        number of rules to handle
3274  */
3275 static inline void bnx2x_mcast_set_rdata_hdr_e1(struct bnx2x *bp,
3276                                         struct bnx2x_mcast_ramrod_params *p,
3277                                         u8 len)
3278 {
3279         struct bnx2x_raw_obj *r = &p->mcast_obj->raw;
3280         struct mac_configuration_cmd *data =
3281                 (struct mac_configuration_cmd *)(r->rdata);
3282
3283         u8 offset = (CHIP_REV_IS_SLOW(bp) ?
3284                      BNX2X_MAX_EMUL_MULTI*(1 + r->func_id) :
3285                      BNX2X_MAX_MULTICAST*(1 + r->func_id));
3286
3287         data->hdr.offset = offset;
3288         data->hdr.client_id = 0xff;
3289         data->hdr.echo = ((r->cid & BNX2X_SWCID_MASK) |
3290                           (BNX2X_FILTER_MCAST_PENDING << BNX2X_SWCID_SHIFT));
3291         data->hdr.length = len;
3292 }
3293
3294 /**
3295  * bnx2x_mcast_handle_restore_cmd_e1 - restore command for 57710
3296  *
3297  * @bp:         device handle
3298  * @o:
3299  * @start_idx:  index in the registry to start from
3300  * @rdata_idx:  index in the ramrod data to start from
3301  *
3302  * restore command for 57710 is like all other commands - always a stand alone
3303  * command - start_idx and rdata_idx will always be 0. This function will always
3304  * succeed.
3305  * returns -1 to comply with 57712 variant.
3306  */
3307 static inline int bnx2x_mcast_handle_restore_cmd_e1(
3308         struct bnx2x *bp, struct bnx2x_mcast_obj *o , int start_idx,
3309         int *rdata_idx)
3310 {
3311         struct bnx2x_mcast_mac_elem *elem;
3312         int i = 0;
3313         union bnx2x_mcast_config_data cfg_data = {0};
3314
3315         /* go through the registry and configure the MACs from it. */
3316         list_for_each_entry(elem, &o->registry.exact_match.macs, link) {
3317                 cfg_data.mac = &elem->mac[0];
3318                 o->set_one_rule(bp, o, i, &cfg_data, BNX2X_MCAST_CMD_RESTORE);
3319
3320                 i++;
3321
3322                   DP(BNX2X_MSG_SP, "About to configure %pM mcast MAC\n",
3323                                    cfg_data.mac);
3324         }
3325
3326         *rdata_idx = i;
3327
3328         return -1;
3329 }
3330
3331
3332 static inline int bnx2x_mcast_handle_pending_cmds_e1(
3333         struct bnx2x *bp, struct bnx2x_mcast_ramrod_params *p)
3334 {
3335         struct bnx2x_pending_mcast_cmd *cmd_pos;
3336         struct bnx2x_mcast_mac_elem *pmac_pos;
3337         struct bnx2x_mcast_obj *o = p->mcast_obj;
3338         union bnx2x_mcast_config_data cfg_data = {0};
3339         int cnt = 0;
3340
3341
3342         /* If nothing to be done - return */
3343         if (list_empty(&o->pending_cmds_head))
3344                 return 0;
3345
3346         /* Handle the first command */
3347         cmd_pos = list_first_entry(&o->pending_cmds_head,
3348                                    struct bnx2x_pending_mcast_cmd, link);
3349
3350         switch (cmd_pos->type) {
3351         case BNX2X_MCAST_CMD_ADD:
3352                 list_for_each_entry(pmac_pos, &cmd_pos->data.macs_head, link) {
3353                         cfg_data.mac = &pmac_pos->mac[0];
3354                         o->set_one_rule(bp, o, cnt, &cfg_data, cmd_pos->type);
3355
3356                         cnt++;
3357
3358                         DP(BNX2X_MSG_SP, "About to configure %pM mcast MAC\n",
3359                                          pmac_pos->mac);
3360                 }
3361                 break;
3362
3363         case BNX2X_MCAST_CMD_DEL:
3364                 cnt = cmd_pos->data.macs_num;
3365                 DP(BNX2X_MSG_SP, "About to delete %d multicast MACs\n", cnt);
3366                 break;
3367
3368         case BNX2X_MCAST_CMD_RESTORE:
3369                 o->hdl_restore(bp, o, 0, &cnt);
3370                 break;
3371
3372         default:
3373                 BNX2X_ERR("Unknown command: %d\n", cmd_pos->type);
3374                 return -EINVAL;
3375         }
3376
3377         list_del(&cmd_pos->link);
3378         kfree(cmd_pos);
3379
3380         return cnt;
3381 }
3382
3383 /**
3384  * bnx2x_get_fw_mac_addr - revert the bnx2x_set_fw_mac_addr().
3385  *
3386  * @fw_hi:
3387  * @fw_mid:
3388  * @fw_lo:
3389  * @mac:
3390  */
3391 static inline void bnx2x_get_fw_mac_addr(__le16 *fw_hi, __le16 *fw_mid,
3392                                          __le16 *fw_lo, u8 *mac)
3393 {
3394         mac[1] = ((u8 *)fw_hi)[0];
3395         mac[0] = ((u8 *)fw_hi)[1];
3396         mac[3] = ((u8 *)fw_mid)[0];
3397         mac[2] = ((u8 *)fw_mid)[1];
3398         mac[5] = ((u8 *)fw_lo)[0];
3399         mac[4] = ((u8 *)fw_lo)[1];
3400 }
3401
3402 /**
3403  * bnx2x_mcast_refresh_registry_e1 -
3404  *
3405  * @bp:         device handle
3406  * @cnt:
3407  *
3408  * Check the ramrod data first entry flag to see if it's a DELETE or ADD command
3409  * and update the registry correspondingly: if ADD - allocate a memory and add
3410  * the entries to the registry (list), if DELETE - clear the registry and free
3411  * the memory.
3412  */
3413 static inline int bnx2x_mcast_refresh_registry_e1(struct bnx2x *bp,
3414                                                   struct bnx2x_mcast_obj *o)
3415 {
3416         struct bnx2x_raw_obj *raw = &o->raw;
3417         struct bnx2x_mcast_mac_elem *elem;
3418         struct mac_configuration_cmd *data =
3419                         (struct mac_configuration_cmd *)(raw->rdata);
3420
3421         /* If first entry contains a SET bit - the command was ADD,
3422          * otherwise - DEL_ALL
3423          */
3424         if (GET_FLAG(data->config_table[0].flags,
3425                         MAC_CONFIGURATION_ENTRY_ACTION_TYPE)) {
3426                 int i, len = data->hdr.length;
3427
3428                 /* Break if it was a RESTORE command */
3429                 if (!list_empty(&o->registry.exact_match.macs))
3430                         return 0;
3431
3432                 elem = kcalloc(len, sizeof(*elem), GFP_ATOMIC);
3433                 if (!elem) {
3434                         BNX2X_ERR("Failed to allocate registry memory\n");
3435                         return -ENOMEM;
3436                 }
3437
3438                 for (i = 0; i < len; i++, elem++) {
3439                         bnx2x_get_fw_mac_addr(
3440                                 &data->config_table[i].msb_mac_addr,
3441                                 &data->config_table[i].middle_mac_addr,
3442                                 &data->config_table[i].lsb_mac_addr,
3443                                 elem->mac);
3444                         DP(BNX2X_MSG_SP, "Adding registry entry for [%pM]\n",
3445                            elem->mac);
3446                         list_add_tail(&elem->link,
3447                                       &o->registry.exact_match.macs);
3448                 }
3449         } else {
3450                 elem = list_first_entry(&o->registry.exact_match.macs,
3451                                         struct bnx2x_mcast_mac_elem, link);
3452                 DP(BNX2X_MSG_SP, "Deleting a registry\n");
3453                 kfree(elem);
3454                 INIT_LIST_HEAD(&o->registry.exact_match.macs);
3455         }
3456
3457         return 0;
3458 }
3459
3460 static int bnx2x_mcast_setup_e1(struct bnx2x *bp,
3461                                 struct bnx2x_mcast_ramrod_params *p,
3462                                 int cmd)
3463 {
3464         struct bnx2x_mcast_obj *o = p->mcast_obj;
3465         struct bnx2x_raw_obj *raw = &o->raw;
3466         struct mac_configuration_cmd *data =
3467                 (struct mac_configuration_cmd *)(raw->rdata);
3468         int cnt = 0, i, rc;
3469
3470         /* Reset the ramrod data buffer */
3471         memset(data, 0, sizeof(*data));
3472
3473         /* First set all entries as invalid */
3474         for (i = 0; i < o->max_cmd_len ; i++)
3475                 SET_FLAG(data->config_table[i].flags,
3476                          MAC_CONFIGURATION_ENTRY_ACTION_TYPE,
3477                          T_ETH_MAC_COMMAND_INVALIDATE);
3478
3479         /* Handle pending commands first */
3480         cnt = bnx2x_mcast_handle_pending_cmds_e1(bp, p);
3481
3482         /* If there are no more pending commands - clear SCHEDULED state */
3483         if (list_empty(&o->pending_cmds_head))
3484                 o->clear_sched(o);
3485
3486         /* The below may be true iff there were no pending commands */
3487         if (!cnt)
3488                 cnt = bnx2x_mcast_handle_current_cmd(bp, p, cmd, 0);
3489
3490         /* For 57710 every command has o->max_cmd_len length to ensure that
3491          * commands are done one at a time.
3492          */
3493         o->total_pending_num -= o->max_cmd_len;
3494
3495         /* send a ramrod */
3496
3497         WARN_ON(cnt > o->max_cmd_len);
3498
3499         /* Set ramrod header (in particular, a number of entries to update) */
3500         bnx2x_mcast_set_rdata_hdr_e1(bp, p, (u8)cnt);
3501
3502         /* update a registry: we need the registry contents to be always up
3503          * to date in order to be able to execute a RESTORE opcode. Here
3504          * we use the fact that for 57710 we sent one command at a time
3505          * hence we may take the registry update out of the command handling
3506          * and do it in a simpler way here.
3507          */
3508         rc = bnx2x_mcast_refresh_registry_e1(bp, o);
3509         if (rc)
3510                 return rc;
3511
3512         /*
3513          * If CLEAR_ONLY was requested - don't send a ramrod and clear
3514          * RAMROD_PENDING status immediately.
3515          */
3516         if (test_bit(RAMROD_DRV_CLR_ONLY, &p->ramrod_flags)) {
3517                 raw->clear_pending(raw);
3518                 return 0;
3519         } else {
3520                 /*
3521                  *  No need for an explicit memory barrier here as long we would
3522                  *  need to ensure the ordering of writing to the SPQ element
3523                  *  and updating of the SPQ producer which involves a memory
3524                  *  read and we will have to put a full memory barrier there
3525                  *  (inside bnx2x_sp_post()).
3526                  */
3527
3528                 /* Send a ramrod */
3529                 rc = bnx2x_sp_post(bp, RAMROD_CMD_ID_ETH_SET_MAC, raw->cid,
3530                                    U64_HI(raw->rdata_mapping),
3531                                    U64_LO(raw->rdata_mapping),
3532                                    ETH_CONNECTION_TYPE);
3533                 if (rc)
3534                         return rc;
3535
3536                 /* Ramrod completion is pending */
3537                 return 1;
3538         }
3539
3540 }
3541
3542 static int bnx2x_mcast_get_registry_size_exact(struct bnx2x_mcast_obj *o)
3543 {
3544         return o->registry.exact_match.num_macs_set;
3545 }
3546
3547 static int bnx2x_mcast_get_registry_size_aprox(struct bnx2x_mcast_obj *o)
3548 {
3549         return o->registry.aprox_match.num_bins_set;
3550 }
3551
3552 static void bnx2x_mcast_set_registry_size_exact(struct bnx2x_mcast_obj *o,
3553                                                 int n)
3554 {
3555         o->registry.exact_match.num_macs_set = n;
3556 }
3557
3558 static void bnx2x_mcast_set_registry_size_aprox(struct bnx2x_mcast_obj *o,
3559                                                 int n)
3560 {
3561         o->registry.aprox_match.num_bins_set = n;
3562 }
3563
3564 int bnx2x_config_mcast(struct bnx2x *bp,
3565                        struct bnx2x_mcast_ramrod_params *p,
3566                        int cmd)
3567 {
3568         struct bnx2x_mcast_obj *o = p->mcast_obj;
3569         struct bnx2x_raw_obj *r = &o->raw;
3570         int rc = 0, old_reg_size;
3571
3572         /* This is needed to recover number of currently configured mcast macs
3573          * in case of failure.
3574          */
3575         old_reg_size = o->get_registry_size(o);
3576
3577         /* Do some calculations and checks */
3578         rc = o->validate(bp, p, cmd);
3579         if (rc)
3580                 return rc;
3581
3582         /* Return if there is no work to do */
3583         if ((!p->mcast_list_len) && (!o->check_sched(o)))
3584                 return 0;
3585
3586         DP(BNX2X_MSG_SP, "o->total_pending_num=%d p->mcast_list_len=%d o->max_cmd_len=%d\n",
3587            o->total_pending_num, p->mcast_list_len, o->max_cmd_len);
3588
3589         /* Enqueue the current command to the pending list if we can't complete
3590          * it in the current iteration
3591          */
3592         if (r->check_pending(r) ||
3593             ((o->max_cmd_len > 0) && (o->total_pending_num > o->max_cmd_len))) {
3594                 rc = o->enqueue_cmd(bp, p->mcast_obj, p, cmd);
3595                 if (rc < 0)
3596                         goto error_exit1;
3597
3598                 /* As long as the current command is in a command list we
3599                  * don't need to handle it separately.
3600                  */
3601                 p->mcast_list_len = 0;
3602         }
3603
3604         if (!r->check_pending(r)) {
3605
3606                 /* Set 'pending' state */
3607                 r->set_pending(r);
3608
3609                 /* Configure the new classification in the chip */
3610                 rc = o->config_mcast(bp, p, cmd);
3611                 if (rc < 0)
3612                         goto error_exit2;
3613
3614                 /* Wait for a ramrod completion if was requested */
3615                 if (test_bit(RAMROD_COMP_WAIT, &p->ramrod_flags))
3616                         rc = o->wait_comp(bp, o);
3617         }
3618
3619         return rc;
3620
3621 error_exit2:
3622         r->clear_pending(r);
3623
3624 error_exit1:
3625         o->revert(bp, p, old_reg_size);
3626
3627         return rc;
3628 }
3629
3630 static void bnx2x_mcast_clear_sched(struct bnx2x_mcast_obj *o)
3631 {
3632         smp_mb__before_clear_bit();
3633         clear_bit(o->sched_state, o->raw.pstate);
3634         smp_mb__after_clear_bit();
3635 }
3636
3637 static void bnx2x_mcast_set_sched(struct bnx2x_mcast_obj *o)
3638 {
3639         smp_mb__before_clear_bit();
3640         set_bit(o->sched_state, o->raw.pstate);
3641         smp_mb__after_clear_bit();
3642 }
3643
3644 static bool bnx2x_mcast_check_sched(struct bnx2x_mcast_obj *o)
3645 {
3646         return !!test_bit(o->sched_state, o->raw.pstate);
3647 }
3648
3649 static bool bnx2x_mcast_check_pending(struct bnx2x_mcast_obj *o)
3650 {
3651         return o->raw.check_pending(&o->raw) || o->check_sched(o);
3652 }
3653
3654 void bnx2x_init_mcast_obj(struct bnx2x *bp,
3655                           struct bnx2x_mcast_obj *mcast_obj,
3656                           u8 mcast_cl_id, u32 mcast_cid, u8 func_id,
3657                           u8 engine_id, void *rdata, dma_addr_t rdata_mapping,
3658                           int state, unsigned long *pstate, bnx2x_obj_type type)
3659 {
3660         memset(mcast_obj, 0, sizeof(*mcast_obj));
3661
3662         bnx2x_init_raw_obj(&mcast_obj->raw, mcast_cl_id, mcast_cid, func_id,
3663                            rdata, rdata_mapping, state, pstate, type);
3664
3665         mcast_obj->engine_id = engine_id;
3666
3667         INIT_LIST_HEAD(&mcast_obj->pending_cmds_head);
3668
3669         mcast_obj->sched_state = BNX2X_FILTER_MCAST_SCHED;
3670         mcast_obj->check_sched = bnx2x_mcast_check_sched;
3671         mcast_obj->set_sched = bnx2x_mcast_set_sched;
3672         mcast_obj->clear_sched = bnx2x_mcast_clear_sched;
3673
3674         if (CHIP_IS_E1(bp)) {
3675                 mcast_obj->config_mcast      = bnx2x_mcast_setup_e1;
3676                 mcast_obj->enqueue_cmd       = bnx2x_mcast_enqueue_cmd;
3677                 mcast_obj->hdl_restore       =
3678                         bnx2x_mcast_handle_restore_cmd_e1;
3679                 mcast_obj->check_pending     = bnx2x_mcast_check_pending;
3680
3681                 if (CHIP_REV_IS_SLOW(bp))
3682                         mcast_obj->max_cmd_len = BNX2X_MAX_EMUL_MULTI;
3683                 else
3684                         mcast_obj->max_cmd_len = BNX2X_MAX_MULTICAST;
3685
3686                 mcast_obj->wait_comp         = bnx2x_mcast_wait;
3687                 mcast_obj->set_one_rule      = bnx2x_mcast_set_one_rule_e1;
3688                 mcast_obj->validate          = bnx2x_mcast_validate_e1;
3689                 mcast_obj->revert            = bnx2x_mcast_revert_e1;
3690                 mcast_obj->get_registry_size =
3691                         bnx2x_mcast_get_registry_size_exact;
3692                 mcast_obj->set_registry_size =
3693                         bnx2x_mcast_set_registry_size_exact;
3694
3695                 /* 57710 is the only chip that uses the exact match for mcast
3696                  * at the moment.
3697                  */
3698                 INIT_LIST_HEAD(&mcast_obj->registry.exact_match.macs);
3699
3700         } else if (CHIP_IS_E1H(bp)) {
3701                 mcast_obj->config_mcast  = bnx2x_mcast_setup_e1h;
3702                 mcast_obj->enqueue_cmd   = NULL;
3703                 mcast_obj->hdl_restore   = NULL;
3704                 mcast_obj->check_pending = bnx2x_mcast_check_pending;
3705
3706                 /* 57711 doesn't send a ramrod, so it has unlimited credit
3707                  * for one command.
3708                  */
3709                 mcast_obj->max_cmd_len       = -1;
3710                 mcast_obj->wait_comp         = bnx2x_mcast_wait;
3711                 mcast_obj->set_one_rule      = NULL;
3712                 mcast_obj->validate          = bnx2x_mcast_validate_e1h;
3713                 mcast_obj->revert            = bnx2x_mcast_revert_e1h;
3714                 mcast_obj->get_registry_size =
3715                         bnx2x_mcast_get_registry_size_aprox;
3716                 mcast_obj->set_registry_size =
3717                         bnx2x_mcast_set_registry_size_aprox;
3718         } else {
3719                 mcast_obj->config_mcast      = bnx2x_mcast_setup_e2;
3720                 mcast_obj->enqueue_cmd       = bnx2x_mcast_enqueue_cmd;
3721                 mcast_obj->hdl_restore       =
3722                         bnx2x_mcast_handle_restore_cmd_e2;
3723                 mcast_obj->check_pending     = bnx2x_mcast_check_pending;
3724                 /* TODO: There should be a proper HSI define for this number!!!
3725                  */
3726                 mcast_obj->max_cmd_len       = 16;
3727                 mcast_obj->wait_comp         = bnx2x_mcast_wait;
3728                 mcast_obj->set_one_rule      = bnx2x_mcast_set_one_rule_e2;
3729                 mcast_obj->validate          = bnx2x_mcast_validate_e2;
3730                 mcast_obj->revert            = bnx2x_mcast_revert_e2;
3731                 mcast_obj->get_registry_size =
3732                         bnx2x_mcast_get_registry_size_aprox;
3733                 mcast_obj->set_registry_size =
3734                         bnx2x_mcast_set_registry_size_aprox;
3735         }
3736 }
3737
3738 /*************************** Credit handling **********************************/
3739
3740 /**
3741  * atomic_add_ifless - add if the result is less than a given value.
3742  *
3743  * @v:  pointer of type atomic_t
3744  * @a:  the amount to add to v...
3745  * @u:  ...if (v + a) is less than u.
3746  *
3747  * returns true if (v + a) was less than u, and false otherwise.
3748  *
3749  */
3750 static inline bool __atomic_add_ifless(atomic_t *v, int a, int u)
3751 {
3752         int c, old;
3753
3754         c = atomic_read(v);
3755         for (;;) {
3756                 if (unlikely(c + a >= u))
3757                         return false;
3758
3759                 old = atomic_cmpxchg((v), c, c + a);
3760                 if (likely(old == c))
3761                         break;
3762                 c = old;
3763         }
3764
3765         return true;
3766 }
3767
3768 /**
3769  * atomic_dec_ifmoe - dec if the result is more or equal than a given value.
3770  *
3771  * @v:  pointer of type atomic_t
3772  * @a:  the amount to dec from v...
3773  * @u:  ...if (v - a) is more or equal than u.
3774  *
3775  * returns true if (v - a) was more or equal than u, and false
3776  * otherwise.
3777  */
3778 static inline bool __atomic_dec_ifmoe(atomic_t *v, int a, int u)
3779 {
3780         int c, old;
3781
3782         c = atomic_read(v);
3783         for (;;) {
3784                 if (unlikely(c - a < u))
3785                         return false;
3786
3787                 old = atomic_cmpxchg((v), c, c - a);
3788                 if (likely(old == c))
3789                         break;
3790                 c = old;
3791         }
3792
3793         return true;
3794 }
3795
3796 static bool bnx2x_credit_pool_get(struct bnx2x_credit_pool_obj *o, int cnt)
3797 {
3798         bool rc;
3799
3800         smp_mb();
3801         rc = __atomic_dec_ifmoe(&o->credit, cnt, 0);
3802         smp_mb();
3803
3804         return rc;
3805 }
3806
3807 static bool bnx2x_credit_pool_put(struct bnx2x_credit_pool_obj *o, int cnt)
3808 {
3809         bool rc;
3810
3811         smp_mb();
3812
3813         /* Don't let to refill if credit + cnt > pool_sz */
3814         rc = __atomic_add_ifless(&o->credit, cnt, o->pool_sz + 1);
3815
3816         smp_mb();
3817
3818         return rc;
3819 }
3820
3821 static int bnx2x_credit_pool_check(struct bnx2x_credit_pool_obj *o)
3822 {
3823         int cur_credit;
3824
3825         smp_mb();
3826         cur_credit = atomic_read(&o->credit);
3827
3828         return cur_credit;
3829 }
3830
3831 static bool bnx2x_credit_pool_always_true(struct bnx2x_credit_pool_obj *o,
3832                                           int cnt)
3833 {
3834         return true;
3835 }
3836
3837
3838 static bool bnx2x_credit_pool_get_entry(
3839         struct bnx2x_credit_pool_obj *o,
3840         int *offset)
3841 {
3842         int idx, vec, i;
3843
3844         *offset = -1;
3845
3846         /* Find "internal cam-offset" then add to base for this object... */
3847         for (vec = 0; vec < BNX2X_POOL_VEC_SIZE; vec++) {
3848
3849                 /* Skip the current vector if there are no free entries in it */
3850                 if (!o->pool_mirror[vec])
3851                         continue;
3852
3853                 /* If we've got here we are going to find a free entry */
3854                 for (idx = vec * BIT_VEC64_ELEM_SZ, i = 0;
3855                       i < BIT_VEC64_ELEM_SZ; idx++, i++)
3856
3857                         if (BIT_VEC64_TEST_BIT(o->pool_mirror, idx)) {
3858                                 /* Got one!! */
3859                                 BIT_VEC64_CLEAR_BIT(o->pool_mirror, idx);
3860                                 *offset = o->base_pool_offset + idx;
3861                                 return true;
3862                         }
3863         }
3864
3865         return false;
3866 }
3867
3868 static bool bnx2x_credit_pool_put_entry(
3869         struct bnx2x_credit_pool_obj *o,
3870         int offset)
3871 {
3872         if (offset < o->base_pool_offset)
3873                 return false;
3874
3875         offset -= o->base_pool_offset;
3876
3877         if (offset >= o->pool_sz)
3878                 return false;
3879
3880         /* Return the entry to the pool */
3881         BIT_VEC64_SET_BIT(o->pool_mirror, offset);
3882
3883         return true;
3884 }
3885
3886 static bool bnx2x_credit_pool_put_entry_always_true(
3887         struct bnx2x_credit_pool_obj *o,
3888         int offset)
3889 {
3890         return true;
3891 }
3892
3893 static bool bnx2x_credit_pool_get_entry_always_true(
3894         struct bnx2x_credit_pool_obj *o,
3895         int *offset)
3896 {
3897         *offset = -1;
3898         return true;
3899 }
3900 /**
3901  * bnx2x_init_credit_pool - initialize credit pool internals.
3902  *
3903  * @p:
3904  * @base:       Base entry in the CAM to use.
3905  * @credit:     pool size.
3906  *
3907  * If base is negative no CAM entries handling will be performed.
3908  * If credit is negative pool operations will always succeed (unlimited pool).
3909  *
3910  */
3911 static inline void bnx2x_init_credit_pool(struct bnx2x_credit_pool_obj *p,
3912                                           int base, int credit)
3913 {
3914         /* Zero the object first */
3915         memset(p, 0, sizeof(*p));
3916
3917         /* Set the table to all 1s */
3918         memset(&p->pool_mirror, 0xff, sizeof(p->pool_mirror));
3919
3920         /* Init a pool as full */
3921         atomic_set(&p->credit, credit);
3922
3923         /* The total poll size */
3924         p->pool_sz = credit;
3925
3926         p->base_pool_offset = base;
3927
3928         /* Commit the change */
3929         smp_mb();
3930
3931         p->check = bnx2x_credit_pool_check;
3932
3933         /* if pool credit is negative - disable the checks */
3934         if (credit >= 0) {
3935                 p->put      = bnx2x_credit_pool_put;
3936                 p->get      = bnx2x_credit_pool_get;
3937                 p->put_entry = bnx2x_credit_pool_put_entry;
3938                 p->get_entry = bnx2x_credit_pool_get_entry;
3939         } else {
3940                 p->put      = bnx2x_credit_pool_always_true;
3941                 p->get      = bnx2x_credit_pool_always_true;
3942                 p->put_entry = bnx2x_credit_pool_put_entry_always_true;
3943                 p->get_entry = bnx2x_credit_pool_get_entry_always_true;
3944         }
3945
3946         /* If base is negative - disable entries handling */
3947         if (base < 0) {
3948                 p->put_entry = bnx2x_credit_pool_put_entry_always_true;
3949                 p->get_entry = bnx2x_credit_pool_get_entry_always_true;
3950         }
3951 }
3952
3953 void bnx2x_init_mac_credit_pool(struct bnx2x *bp,
3954                                 struct bnx2x_credit_pool_obj *p, u8 func_id,
3955                                 u8 func_num)
3956 {
3957 /* TODO: this will be defined in consts as well... */
3958 #define BNX2X_CAM_SIZE_EMUL 5
3959
3960         int cam_sz;
3961
3962         if (CHIP_IS_E1(bp)) {
3963                 /* In E1, Multicast is saved in cam... */
3964                 if (!CHIP_REV_IS_SLOW(bp))
3965                         cam_sz = (MAX_MAC_CREDIT_E1 / 2) - BNX2X_MAX_MULTICAST;
3966                 else
3967                         cam_sz = BNX2X_CAM_SIZE_EMUL - BNX2X_MAX_EMUL_MULTI;
3968
3969                 bnx2x_init_credit_pool(p, func_id * cam_sz, cam_sz);
3970
3971         } else if (CHIP_IS_E1H(bp)) {
3972                 /* CAM credit is equaly divided between all active functions
3973                  * on the PORT!.
3974                  */
3975                 if ((func_num > 0)) {
3976                         if (!CHIP_REV_IS_SLOW(bp))
3977                                 cam_sz = (MAX_MAC_CREDIT_E1H / (2*func_num));
3978                         else
3979                                 cam_sz = BNX2X_CAM_SIZE_EMUL;
3980                         bnx2x_init_credit_pool(p, func_id * cam_sz, cam_sz);
3981                 } else {
3982                         /* this should never happen! Block MAC operations. */
3983                         bnx2x_init_credit_pool(p, 0, 0);
3984                 }
3985
3986         } else {
3987
3988                 /*
3989                  * CAM credit is equaly divided between all active functions
3990                  * on the PATH.
3991                  */
3992                 if ((func_num > 0)) {
3993                         if (!CHIP_REV_IS_SLOW(bp))
3994                                 cam_sz = (MAX_MAC_CREDIT_E2 / func_num);
3995                         else
3996                                 cam_sz = BNX2X_CAM_SIZE_EMUL;
3997
3998                         /*
3999                          * No need for CAM entries handling for 57712 and
4000                          * newer.
4001                          */
4002                         bnx2x_init_credit_pool(p, -1, cam_sz);
4003                 } else {
4004                         /* this should never happen! Block MAC operations. */
4005                         bnx2x_init_credit_pool(p, 0, 0);
4006                 }
4007
4008         }
4009 }
4010
4011 void bnx2x_init_vlan_credit_pool(struct bnx2x *bp,
4012                                  struct bnx2x_credit_pool_obj *p,
4013                                  u8 func_id,
4014                                  u8 func_num)
4015 {
4016         if (CHIP_IS_E1x(bp)) {
4017                 /*
4018                  * There is no VLAN credit in HW on 57710 and 57711 only
4019                  * MAC / MAC-VLAN can be set
4020                  */
4021                 bnx2x_init_credit_pool(p, 0, -1);
4022         } else {
4023                 /*
4024                  * CAM credit is equaly divided between all active functions
4025                  * on the PATH.
4026                  */
4027                 if (func_num > 0) {
4028                         int credit = MAX_VLAN_CREDIT_E2 / func_num;
4029                         bnx2x_init_credit_pool(p, func_id * credit, credit);
4030                 } else
4031                         /* this should never happen! Block VLAN operations. */
4032                         bnx2x_init_credit_pool(p, 0, 0);
4033         }
4034 }
4035
4036 /****************** RSS Configuration ******************/
4037 /**
4038  * bnx2x_debug_print_ind_table - prints the indirection table configuration.
4039  *
4040  * @bp:         driver hanlde
4041  * @p:          pointer to rss configuration
4042  *
4043  * Prints it when NETIF_MSG_IFUP debug level is configured.
4044  */
4045 static inline void bnx2x_debug_print_ind_table(struct bnx2x *bp,
4046                                         struct bnx2x_config_rss_params *p)
4047 {
4048         int i;
4049
4050         DP(BNX2X_MSG_SP, "Setting indirection table to:\n");
4051         DP(BNX2X_MSG_SP, "0x0000: ");
4052         for (i = 0; i < T_ETH_INDIRECTION_TABLE_SIZE; i++) {
4053                 DP_CONT(BNX2X_MSG_SP, "0x%02x ", p->ind_table[i]);
4054
4055                 /* Print 4 bytes in a line */
4056                 if ((i + 1 < T_ETH_INDIRECTION_TABLE_SIZE) &&
4057                     (((i + 1) & 0x3) == 0)) {
4058                         DP_CONT(BNX2X_MSG_SP, "\n");
4059                         DP(BNX2X_MSG_SP, "0x%04x: ", i + 1);
4060                 }
4061         }
4062
4063         DP_CONT(BNX2X_MSG_SP, "\n");
4064 }
4065
4066 /**
4067  * bnx2x_setup_rss - configure RSS
4068  *
4069  * @bp:         device handle
4070  * @p:          rss configuration
4071  *
4072  * sends on UPDATE ramrod for that matter.
4073  */
4074 static int bnx2x_setup_rss(struct bnx2x *bp,
4075                            struct bnx2x_config_rss_params *p)
4076 {
4077         struct bnx2x_rss_config_obj *o = p->rss_obj;
4078         struct bnx2x_raw_obj *r = &o->raw;
4079         struct eth_rss_update_ramrod_data *data =
4080                 (struct eth_rss_update_ramrod_data *)(r->rdata);
4081         u8 rss_mode = 0;
4082         int rc;
4083
4084         memset(data, 0, sizeof(*data));
4085
4086         DP(BNX2X_MSG_SP, "Configuring RSS\n");
4087
4088         /* Set an echo field */
4089         data->echo = (r->cid & BNX2X_SWCID_MASK) |
4090                      (r->state << BNX2X_SWCID_SHIFT);
4091
4092         /* RSS mode */
4093         if (test_bit(BNX2X_RSS_MODE_DISABLED, &p->rss_flags))
4094                 rss_mode = ETH_RSS_MODE_DISABLED;
4095         else if (test_bit(BNX2X_RSS_MODE_REGULAR, &p->rss_flags))
4096                 rss_mode = ETH_RSS_MODE_REGULAR;
4097
4098         data->rss_mode = rss_mode;
4099
4100         DP(BNX2X_MSG_SP, "rss_mode=%d\n", rss_mode);
4101
4102         /* RSS capabilities */
4103         if (test_bit(BNX2X_RSS_IPV4, &p->rss_flags))
4104                 data->capabilities |=
4105                         ETH_RSS_UPDATE_RAMROD_DATA_IPV4_CAPABILITY;
4106
4107         if (test_bit(BNX2X_RSS_IPV4_TCP, &p->rss_flags))
4108                 data->capabilities |=
4109                         ETH_RSS_UPDATE_RAMROD_DATA_IPV4_TCP_CAPABILITY;
4110
4111         if (test_bit(BNX2X_RSS_IPV4_UDP, &p->rss_flags))
4112                 data->capabilities |=
4113                         ETH_RSS_UPDATE_RAMROD_DATA_IPV4_UDP_CAPABILITY;
4114
4115         if (test_bit(BNX2X_RSS_IPV6, &p->rss_flags))
4116                 data->capabilities |=
4117                         ETH_RSS_UPDATE_RAMROD_DATA_IPV6_CAPABILITY;
4118
4119         if (test_bit(BNX2X_RSS_IPV6_TCP, &p->rss_flags))
4120                 data->capabilities |=
4121                         ETH_RSS_UPDATE_RAMROD_DATA_IPV6_TCP_CAPABILITY;
4122
4123         if (test_bit(BNX2X_RSS_IPV6_UDP, &p->rss_flags))
4124                 data->capabilities |=
4125                         ETH_RSS_UPDATE_RAMROD_DATA_IPV6_UDP_CAPABILITY;
4126
4127         /* Hashing mask */
4128         data->rss_result_mask = p->rss_result_mask;
4129
4130         /* RSS engine ID */
4131         data->rss_engine_id = o->engine_id;
4132
4133         DP(BNX2X_MSG_SP, "rss_engine_id=%d\n", data->rss_engine_id);
4134
4135         /* Indirection table */
4136         memcpy(data->indirection_table, p->ind_table,
4137                   T_ETH_INDIRECTION_TABLE_SIZE);
4138
4139         /* Remember the last configuration */
4140         memcpy(o->ind_table, p->ind_table, T_ETH_INDIRECTION_TABLE_SIZE);
4141
4142         /* Print the indirection table */
4143         if (netif_msg_ifup(bp))
4144                 bnx2x_debug_print_ind_table(bp, p);
4145
4146         /* RSS keys */
4147         if (test_bit(BNX2X_RSS_SET_SRCH, &p->rss_flags)) {
4148                 memcpy(&data->rss_key[0], &p->rss_key[0],
4149                        sizeof(data->rss_key));
4150                 data->capabilities |= ETH_RSS_UPDATE_RAMROD_DATA_UPDATE_RSS_KEY;
4151         }
4152
4153         /*
4154          *  No need for an explicit memory barrier here as long we would
4155          *  need to ensure the ordering of writing to the SPQ element
4156          *  and updating of the SPQ producer which involves a memory
4157          *  read and we will have to put a full memory barrier there
4158          *  (inside bnx2x_sp_post()).
4159          */
4160
4161         /* Send a ramrod */
4162         rc = bnx2x_sp_post(bp, RAMROD_CMD_ID_ETH_RSS_UPDATE, r->cid,
4163                            U64_HI(r->rdata_mapping),
4164                            U64_LO(r->rdata_mapping),
4165                            ETH_CONNECTION_TYPE);
4166
4167         if (rc < 0)
4168                 return rc;
4169
4170         return 1;
4171 }
4172
4173 void bnx2x_get_rss_ind_table(struct bnx2x_rss_config_obj *rss_obj,
4174                              u8 *ind_table)
4175 {
4176         memcpy(ind_table, rss_obj->ind_table, sizeof(rss_obj->ind_table));
4177 }
4178
4179 int bnx2x_config_rss(struct bnx2x *bp,
4180                      struct bnx2x_config_rss_params *p)
4181 {
4182         int rc;
4183         struct bnx2x_rss_config_obj *o = p->rss_obj;
4184         struct bnx2x_raw_obj *r = &o->raw;
4185
4186         /* Do nothing if only driver cleanup was requested */
4187         if (test_bit(RAMROD_DRV_CLR_ONLY, &p->ramrod_flags))
4188                 return 0;
4189
4190         r->set_pending(r);
4191
4192         rc = o->config_rss(bp, p);
4193         if (rc < 0) {
4194                 r->clear_pending(r);
4195                 return rc;
4196         }
4197
4198         if (test_bit(RAMROD_COMP_WAIT, &p->ramrod_flags))
4199                 rc = r->wait_comp(bp, r);
4200
4201         return rc;
4202 }
4203
4204
4205 void bnx2x_init_rss_config_obj(struct bnx2x *bp,
4206                                struct bnx2x_rss_config_obj *rss_obj,
4207                                u8 cl_id, u32 cid, u8 func_id, u8 engine_id,
4208                                void *rdata, dma_addr_t rdata_mapping,
4209                                int state, unsigned long *pstate,
4210                                bnx2x_obj_type type)
4211 {
4212         bnx2x_init_raw_obj(&rss_obj->raw, cl_id, cid, func_id, rdata,
4213                            rdata_mapping, state, pstate, type);
4214
4215         rss_obj->engine_id  = engine_id;
4216         rss_obj->config_rss = bnx2x_setup_rss;
4217 }
4218
4219 /********************** Queue state object ***********************************/
4220
4221 /**
4222  * bnx2x_queue_state_change - perform Queue state change transition
4223  *
4224  * @bp:         device handle
4225  * @params:     parameters to perform the transition
4226  *
4227  * returns 0 in case of successfully completed transition, negative error
4228  * code in case of failure, positive (EBUSY) value if there is a completion
4229  * to that is still pending (possible only if RAMROD_COMP_WAIT is
4230  * not set in params->ramrod_flags for asynchronous commands).
4231  *
4232  */
4233 int bnx2x_queue_state_change(struct bnx2x *bp,
4234                              struct bnx2x_queue_state_params *params)
4235 {
4236         struct bnx2x_queue_sp_obj *o = params->q_obj;
4237         int rc, pending_bit;
4238         unsigned long *pending = &o->pending;
4239
4240         /* Check that the requested transition is legal */
4241         if (o->check_transition(bp, o, params))
4242                 return -EINVAL;
4243
4244         /* Set "pending" bit */
4245         pending_bit = o->set_pending(o, params);
4246
4247         /* Don't send a command if only driver cleanup was requested */
4248         if (test_bit(RAMROD_DRV_CLR_ONLY, &params->ramrod_flags))
4249                 o->complete_cmd(bp, o, pending_bit);
4250         else {
4251                 /* Send a ramrod */
4252                 rc = o->send_cmd(bp, params);
4253                 if (rc) {
4254                         o->next_state = BNX2X_Q_STATE_MAX;
4255                         clear_bit(pending_bit, pending);
4256                         smp_mb__after_clear_bit();
4257                         return rc;
4258                 }
4259
4260                 if (test_bit(RAMROD_COMP_WAIT, &params->ramrod_flags)) {
4261                         rc = o->wait_comp(bp, o, pending_bit);
4262                         if (rc)
4263                                 return rc;
4264
4265                         return 0;
4266                 }
4267         }
4268
4269         return !!test_bit(pending_bit, pending);
4270 }
4271
4272
4273 static int bnx2x_queue_set_pending(struct bnx2x_queue_sp_obj *obj,
4274                                    struct bnx2x_queue_state_params *params)
4275 {
4276         enum bnx2x_queue_cmd cmd = params->cmd, bit;
4277
4278         /* ACTIVATE and DEACTIVATE commands are implemented on top of
4279          * UPDATE command.
4280          */
4281         if ((cmd == BNX2X_Q_CMD_ACTIVATE) ||
4282             (cmd == BNX2X_Q_CMD_DEACTIVATE))
4283                 bit = BNX2X_Q_CMD_UPDATE;
4284         else
4285                 bit = cmd;
4286
4287         set_bit(bit, &obj->pending);
4288         return bit;
4289 }
4290
4291 static int bnx2x_queue_wait_comp(struct bnx2x *bp,
4292                                  struct bnx2x_queue_sp_obj *o,
4293                                  enum bnx2x_queue_cmd cmd)
4294 {
4295         return bnx2x_state_wait(bp, cmd, &o->pending);
4296 }
4297
4298 /**
4299  * bnx2x_queue_comp_cmd - complete the state change command.
4300  *
4301  * @bp:         device handle
4302  * @o:
4303  * @cmd:
4304  *
4305  * Checks that the arrived completion is expected.
4306  */
4307 static int bnx2x_queue_comp_cmd(struct bnx2x *bp,
4308                                 struct bnx2x_queue_sp_obj *o,
4309                                 enum bnx2x_queue_cmd cmd)
4310 {
4311         unsigned long cur_pending = o->pending;
4312
4313         if (!test_and_clear_bit(cmd, &cur_pending)) {
4314                 BNX2X_ERR("Bad MC reply %d for queue %d in state %d pending 0x%lx, next_state %d\n",
4315                           cmd, o->cids[BNX2X_PRIMARY_CID_INDEX],
4316                           o->state, cur_pending, o->next_state);
4317                 return -EINVAL;
4318         }
4319
4320         if (o->next_tx_only >= o->max_cos)
4321                 /* >= becuase tx only must always be smaller than cos since the
4322                  * primary connection suports COS 0
4323                  */
4324                 BNX2X_ERR("illegal value for next tx_only: %d. max cos was %d",
4325                            o->next_tx_only, o->max_cos);
4326
4327         DP(BNX2X_MSG_SP,
4328            "Completing command %d for queue %d, setting state to %d\n",
4329            cmd, o->cids[BNX2X_PRIMARY_CID_INDEX], o->next_state);
4330
4331         if (o->next_tx_only)  /* print num tx-only if any exist */
4332                 DP(BNX2X_MSG_SP, "primary cid %d: num tx-only cons %d\n",
4333                    o->cids[BNX2X_PRIMARY_CID_INDEX], o->next_tx_only);
4334
4335         o->state = o->next_state;
4336         o->num_tx_only = o->next_tx_only;
4337         o->next_state = BNX2X_Q_STATE_MAX;
4338
4339         /* It's important that o->state and o->next_state are
4340          * updated before o->pending.
4341          */
4342         wmb();
4343
4344         clear_bit(cmd, &o->pending);
4345         smp_mb__after_clear_bit();
4346
4347         return 0;
4348 }
4349
4350 static void bnx2x_q_fill_setup_data_e2(struct bnx2x *bp,
4351                                 struct bnx2x_queue_state_params *cmd_params,
4352                                 struct client_init_ramrod_data *data)
4353 {
4354         struct bnx2x_queue_setup_params *params = &cmd_params->params.setup;
4355
4356         /* Rx data */
4357
4358         /* IPv6 TPA supported for E2 and above only */
4359         data->rx.tpa_en |= test_bit(BNX2X_Q_FLG_TPA_IPV6, &params->flags) *
4360                                 CLIENT_INIT_RX_DATA_TPA_EN_IPV6;
4361 }
4362
4363 static void bnx2x_q_fill_init_general_data(struct bnx2x *bp,
4364                                 struct bnx2x_queue_sp_obj *o,
4365                                 struct bnx2x_general_setup_params *params,
4366                                 struct client_init_general_data *gen_data,
4367                                 unsigned long *flags)
4368 {
4369         gen_data->client_id = o->cl_id;
4370
4371         if (test_bit(BNX2X_Q_FLG_STATS, flags)) {
4372                 gen_data->statistics_counter_id =
4373                                         params->stat_id;
4374                 gen_data->statistics_en_flg = 1;
4375                 gen_data->statistics_zero_flg =
4376                         test_bit(BNX2X_Q_FLG_ZERO_STATS, flags);
4377         } else
4378                 gen_data->statistics_counter_id =
4379                                         DISABLE_STATISTIC_COUNTER_ID_VALUE;
4380
4381         gen_data->is_fcoe_flg = test_bit(BNX2X_Q_FLG_FCOE, flags);
4382         gen_data->activate_flg = test_bit(BNX2X_Q_FLG_ACTIVE, flags);
4383         gen_data->sp_client_id = params->spcl_id;
4384         gen_data->mtu = cpu_to_le16(params->mtu);
4385         gen_data->func_id = o->func_id;
4386
4387
4388         gen_data->cos = params->cos;
4389
4390         gen_data->traffic_type =
4391                 test_bit(BNX2X_Q_FLG_FCOE, flags) ?
4392                 LLFC_TRAFFIC_TYPE_FCOE : LLFC_TRAFFIC_TYPE_NW;
4393
4394         DP(BNX2X_MSG_SP, "flags: active %d, cos %d, stats en %d\n",
4395            gen_data->activate_flg, gen_data->cos, gen_data->statistics_en_flg);
4396 }
4397
4398 static void bnx2x_q_fill_init_tx_data(struct bnx2x_queue_sp_obj *o,
4399                                 struct bnx2x_txq_setup_params *params,
4400                                 struct client_init_tx_data *tx_data,
4401                                 unsigned long *flags)
4402 {
4403         tx_data->enforce_security_flg =
4404                 test_bit(BNX2X_Q_FLG_TX_SEC, flags);
4405         tx_data->default_vlan =
4406                 cpu_to_le16(params->default_vlan);
4407         tx_data->default_vlan_flg =
4408                 test_bit(BNX2X_Q_FLG_DEF_VLAN, flags);
4409         tx_data->tx_switching_flg =
4410                 test_bit(BNX2X_Q_FLG_TX_SWITCH, flags);
4411         tx_data->anti_spoofing_flg =
4412                 test_bit(BNX2X_Q_FLG_ANTI_SPOOF, flags);
4413         tx_data->force_default_pri_flg =
4414                 test_bit(BNX2X_Q_FLG_FORCE_DEFAULT_PRI, flags);
4415
4416         tx_data->tx_status_block_id = params->fw_sb_id;
4417         tx_data->tx_sb_index_number = params->sb_cq_index;
4418         tx_data->tss_leading_client_id = params->tss_leading_cl_id;
4419
4420         tx_data->tx_bd_page_base.lo =
4421                 cpu_to_le32(U64_LO(params->dscr_map));
4422         tx_data->tx_bd_page_base.hi =
4423                 cpu_to_le32(U64_HI(params->dscr_map));
4424
4425         /* Don't configure any Tx switching mode during queue SETUP */
4426         tx_data->state = 0;
4427 }
4428
4429 static void bnx2x_q_fill_init_pause_data(struct bnx2x_queue_sp_obj *o,
4430                                 struct rxq_pause_params *params,
4431                                 struct client_init_rx_data *rx_data)
4432 {
4433         /* flow control data */
4434         rx_data->cqe_pause_thr_low = cpu_to_le16(params->rcq_th_lo);
4435         rx_data->cqe_pause_thr_high = cpu_to_le16(params->rcq_th_hi);
4436         rx_data->bd_pause_thr_low = cpu_to_le16(params->bd_th_lo);
4437         rx_data->bd_pause_thr_high = cpu_to_le16(params->bd_th_hi);
4438         rx_data->sge_pause_thr_low = cpu_to_le16(params->sge_th_lo);
4439         rx_data->sge_pause_thr_high = cpu_to_le16(params->sge_th_hi);
4440         rx_data->rx_cos_mask = cpu_to_le16(params->pri_map);
4441 }
4442
4443 static void bnx2x_q_fill_init_rx_data(struct bnx2x_queue_sp_obj *o,
4444                                 struct bnx2x_rxq_setup_params *params,
4445                                 struct client_init_rx_data *rx_data,
4446                                 unsigned long *flags)
4447 {
4448         rx_data->tpa_en = test_bit(BNX2X_Q_FLG_TPA, flags) *
4449                                 CLIENT_INIT_RX_DATA_TPA_EN_IPV4;
4450         rx_data->tpa_en |= test_bit(BNX2X_Q_FLG_TPA_GRO, flags) *
4451                                 CLIENT_INIT_RX_DATA_TPA_MODE;
4452         rx_data->vmqueue_mode_en_flg = 0;
4453
4454         rx_data->cache_line_alignment_log_size =
4455                 params->cache_line_log;
4456         rx_data->enable_dynamic_hc =
4457                 test_bit(BNX2X_Q_FLG_DHC, flags);
4458         rx_data->max_sges_for_packet = params->max_sges_pkt;
4459         rx_data->client_qzone_id = params->cl_qzone_id;
4460         rx_data->max_agg_size = cpu_to_le16(params->tpa_agg_sz);
4461
4462         /* Always start in DROP_ALL mode */
4463         rx_data->state = cpu_to_le16(CLIENT_INIT_RX_DATA_UCAST_DROP_ALL |
4464                                      CLIENT_INIT_RX_DATA_MCAST_DROP_ALL);
4465
4466         /* We don't set drop flags */
4467         rx_data->drop_ip_cs_err_flg = 0;
4468         rx_data->drop_tcp_cs_err_flg = 0;
4469         rx_data->drop_ttl0_flg = 0;
4470         rx_data->drop_udp_cs_err_flg = 0;
4471         rx_data->inner_vlan_removal_enable_flg =
4472                 test_bit(BNX2X_Q_FLG_VLAN, flags);
4473         rx_data->outer_vlan_removal_enable_flg =
4474                 test_bit(BNX2X_Q_FLG_OV, flags);
4475         rx_data->status_block_id = params->fw_sb_id;
4476         rx_data->rx_sb_index_number = params->sb_cq_index;
4477         rx_data->max_tpa_queues = params->max_tpa_queues;
4478         rx_data->max_bytes_on_bd = cpu_to_le16(params->buf_sz);
4479         rx_data->sge_buff_size = cpu_to_le16(params->sge_buf_sz);
4480         rx_data->bd_page_base.lo =
4481                 cpu_to_le32(U64_LO(params->dscr_map));
4482         rx_data->bd_page_base.hi =
4483                 cpu_to_le32(U64_HI(params->dscr_map));
4484         rx_data->sge_page_base.lo =
4485                 cpu_to_le32(U64_LO(params->sge_map));
4486         rx_data->sge_page_base.hi =
4487                 cpu_to_le32(U64_HI(params->sge_map));
4488         rx_data->cqe_page_base.lo =
4489                 cpu_to_le32(U64_LO(params->rcq_map));
4490         rx_data->cqe_page_base.hi =
4491                 cpu_to_le32(U64_HI(params->rcq_map));
4492         rx_data->is_leading_rss = test_bit(BNX2X_Q_FLG_LEADING_RSS, flags);
4493
4494         if (test_bit(BNX2X_Q_FLG_MCAST, flags)) {
4495                 rx_data->approx_mcast_engine_id = params->mcast_engine_id;
4496                 rx_data->is_approx_mcast = 1;
4497         }
4498
4499         rx_data->rss_engine_id = params->rss_engine_id;
4500
4501         /* silent vlan removal */
4502         rx_data->silent_vlan_removal_flg =
4503                 test_bit(BNX2X_Q_FLG_SILENT_VLAN_REM, flags);
4504         rx_data->silent_vlan_value =
4505                 cpu_to_le16(params->silent_removal_value);
4506         rx_data->silent_vlan_mask =
4507                 cpu_to_le16(params->silent_removal_mask);
4508
4509 }
4510
4511 /* initialize the general, tx and rx parts of a queue object */
4512 static void bnx2x_q_fill_setup_data_cmn(struct bnx2x *bp,
4513                                 struct bnx2x_queue_state_params *cmd_params,
4514                                 struct client_init_ramrod_data *data)
4515 {
4516         bnx2x_q_fill_init_general_data(bp, cmd_params->q_obj,
4517                                        &cmd_params->params.setup.gen_params,
4518                                        &data->general,
4519                                        &cmd_params->params.setup.flags);
4520
4521         bnx2x_q_fill_init_tx_data(cmd_params->q_obj,
4522                                   &cmd_params->params.setup.txq_params,
4523                                   &data->tx,
4524                                   &cmd_params->params.setup.flags);
4525
4526         bnx2x_q_fill_init_rx_data(cmd_params->q_obj,
4527                                   &cmd_params->params.setup.rxq_params,
4528                                   &data->rx,
4529                                   &cmd_params->params.setup.flags);
4530
4531         bnx2x_q_fill_init_pause_data(cmd_params->q_obj,
4532                                      &cmd_params->params.setup.pause_params,
4533                                      &data->rx);
4534 }
4535
4536 /* initialize the general and tx parts of a tx-only queue object */
4537 static void bnx2x_q_fill_setup_tx_only(struct bnx2x *bp,
4538                                 struct bnx2x_queue_state_params *cmd_params,
4539                                 struct tx_queue_init_ramrod_data *data)
4540 {
4541         bnx2x_q_fill_init_general_data(bp, cmd_params->q_obj,
4542                                        &cmd_params->params.tx_only.gen_params,
4543                                        &data->general,
4544                                        &cmd_params->params.tx_only.flags);
4545
4546         bnx2x_q_fill_init_tx_data(cmd_params->q_obj,
4547                                   &cmd_params->params.tx_only.txq_params,
4548                                   &data->tx,
4549                                   &cmd_params->params.tx_only.flags);
4550
4551         DP(BNX2X_MSG_SP, "cid %d, tx bd page lo %x hi %x",
4552                          cmd_params->q_obj->cids[0],
4553                          data->tx.tx_bd_page_base.lo,
4554                          data->tx.tx_bd_page_base.hi);
4555 }
4556
4557 /**
4558  * bnx2x_q_init - init HW/FW queue
4559  *
4560  * @bp:         device handle
4561  * @params:
4562  *
4563  * HW/FW initial Queue configuration:
4564  *      - HC: Rx and Tx
4565  *      - CDU context validation
4566  *
4567  */
4568 static inline int bnx2x_q_init(struct bnx2x *bp,
4569                                struct bnx2x_queue_state_params *params)
4570 {
4571         struct bnx2x_queue_sp_obj *o = params->q_obj;
4572         struct bnx2x_queue_init_params *init = &params->params.init;
4573         u16 hc_usec;
4574         u8 cos;
4575
4576         /* Tx HC configuration */
4577         if (test_bit(BNX2X_Q_TYPE_HAS_TX, &o->type) &&
4578             test_bit(BNX2X_Q_FLG_HC, &init->tx.flags)) {
4579                 hc_usec = init->tx.hc_rate ? 1000000 / init->tx.hc_rate : 0;
4580
4581                 bnx2x_update_coalesce_sb_index(bp, init->tx.fw_sb_id,
4582                         init->tx.sb_cq_index,
4583                         !test_bit(BNX2X_Q_FLG_HC_EN, &init->tx.flags),
4584                         hc_usec);
4585         }
4586
4587         /* Rx HC configuration */
4588         if (test_bit(BNX2X_Q_TYPE_HAS_RX, &o->type) &&
4589             test_bit(BNX2X_Q_FLG_HC, &init->rx.flags)) {
4590                 hc_usec = init->rx.hc_rate ? 1000000 / init->rx.hc_rate : 0;
4591
4592                 bnx2x_update_coalesce_sb_index(bp, init->rx.fw_sb_id,
4593                         init->rx.sb_cq_index,
4594                         !test_bit(BNX2X_Q_FLG_HC_EN, &init->rx.flags),
4595                         hc_usec);
4596         }
4597
4598         /* Set CDU context validation values */
4599         for (cos = 0; cos < o->max_cos; cos++) {
4600                 DP(BNX2X_MSG_SP, "setting context validation. cid %d, cos %d\n",
4601                                  o->cids[cos], cos);
4602                 DP(BNX2X_MSG_SP, "context pointer %p\n", init->cxts[cos]);
4603                 bnx2x_set_ctx_validation(bp, init->cxts[cos], o->cids[cos]);
4604         }
4605
4606         /* As no ramrod is sent, complete the command immediately  */
4607         o->complete_cmd(bp, o, BNX2X_Q_CMD_INIT);
4608
4609         mmiowb();
4610         smp_mb();
4611
4612         return 0;
4613 }
4614
4615 static inline int bnx2x_q_send_setup_e1x(struct bnx2x *bp,
4616                                         struct bnx2x_queue_state_params *params)
4617 {
4618         struct bnx2x_queue_sp_obj *o = params->q_obj;
4619         struct client_init_ramrod_data *rdata =
4620                 (struct client_init_ramrod_data *)o->rdata;
4621         dma_addr_t data_mapping = o->rdata_mapping;
4622         int ramrod = RAMROD_CMD_ID_ETH_CLIENT_SETUP;
4623
4624         /* Clear the ramrod data */
4625         memset(rdata, 0, sizeof(*rdata));
4626
4627         /* Fill the ramrod data */
4628         bnx2x_q_fill_setup_data_cmn(bp, params, rdata);
4629
4630         /*
4631          *  No need for an explicit memory barrier here as long we would
4632          *  need to ensure the ordering of writing to the SPQ element
4633          *  and updating of the SPQ producer which involves a memory
4634          *  read and we will have to put a full memory barrier there
4635          *  (inside bnx2x_sp_post()).
4636          */
4637
4638         return bnx2x_sp_post(bp, ramrod, o->cids[BNX2X_PRIMARY_CID_INDEX],
4639                              U64_HI(data_mapping),
4640                              U64_LO(data_mapping), ETH_CONNECTION_TYPE);
4641 }
4642
4643 static inline int bnx2x_q_send_setup_e2(struct bnx2x *bp,
4644                                         struct bnx2x_queue_state_params *params)
4645 {
4646         struct bnx2x_queue_sp_obj *o = params->q_obj;
4647         struct client_init_ramrod_data *rdata =
4648                 (struct client_init_ramrod_data *)o->rdata;
4649         dma_addr_t data_mapping = o->rdata_mapping;
4650         int ramrod = RAMROD_CMD_ID_ETH_CLIENT_SETUP;
4651
4652         /* Clear the ramrod data */
4653         memset(rdata, 0, sizeof(*rdata));
4654
4655         /* Fill the ramrod data */
4656         bnx2x_q_fill_setup_data_cmn(bp, params, rdata);
4657         bnx2x_q_fill_setup_data_e2(bp, params, rdata);
4658
4659         /*
4660          *  No need for an explicit memory barrier here as long we would
4661          *  need to ensure the ordering of writing to the SPQ element
4662          *  and updating of the SPQ producer which involves a memory
4663          *  read and we will have to put a full memory barrier there
4664          *  (inside bnx2x_sp_post()).
4665          */
4666
4667         return bnx2x_sp_post(bp, ramrod, o->cids[BNX2X_PRIMARY_CID_INDEX],
4668                              U64_HI(data_mapping),
4669                              U64_LO(data_mapping), ETH_CONNECTION_TYPE);
4670 }
4671
4672 static inline int bnx2x_q_send_setup_tx_only(struct bnx2x *bp,
4673                                   struct bnx2x_queue_state_params *params)
4674 {
4675         struct bnx2x_queue_sp_obj *o = params->q_obj;
4676         struct tx_queue_init_ramrod_data *rdata =
4677                 (struct tx_queue_init_ramrod_data *)o->rdata;
4678         dma_addr_t data_mapping = o->rdata_mapping;
4679         int ramrod = RAMROD_CMD_ID_ETH_TX_QUEUE_SETUP;
4680         struct bnx2x_queue_setup_tx_only_params *tx_only_params =
4681                 &params->params.tx_only;
4682         u8 cid_index = tx_only_params->cid_index;
4683
4684
4685         if (cid_index >= o->max_cos) {
4686                 BNX2X_ERR("queue[%d]: cid_index (%d) is out of range\n",
4687                           o->cl_id, cid_index);
4688                 return -EINVAL;
4689         }
4690
4691         DP(BNX2X_MSG_SP, "parameters received: cos: %d sp-id: %d\n",
4692                          tx_only_params->gen_params.cos,
4693                          tx_only_params->gen_params.spcl_id);
4694
4695         /* Clear the ramrod data */
4696         memset(rdata, 0, sizeof(*rdata));
4697
4698         /* Fill the ramrod data */
4699         bnx2x_q_fill_setup_tx_only(bp, params, rdata);
4700
4701         DP(BNX2X_MSG_SP, "sending tx-only ramrod: cid %d, client-id %d, sp-client id %d, cos %d\n",
4702                          o->cids[cid_index], rdata->general.client_id,
4703                          rdata->general.sp_client_id, rdata->general.cos);
4704
4705         /*
4706          *  No need for an explicit memory barrier here as long we would
4707          *  need to ensure the ordering of writing to the SPQ element
4708          *  and updating of the SPQ producer which involves a memory
4709          *  read and we will have to put a full memory barrier there
4710          *  (inside bnx2x_sp_post()).
4711          */
4712
4713         return bnx2x_sp_post(bp, ramrod, o->cids[cid_index],
4714                              U64_HI(data_mapping),
4715                              U64_LO(data_mapping), ETH_CONNECTION_TYPE);
4716 }
4717
4718 static void bnx2x_q_fill_update_data(struct bnx2x *bp,
4719                                      struct bnx2x_queue_sp_obj *obj,
4720                                      struct bnx2x_queue_update_params *params,
4721                                      struct client_update_ramrod_data *data)
4722 {
4723         /* Client ID of the client to update */
4724         data->client_id = obj->cl_id;
4725
4726         /* Function ID of the client to update */
4727         data->func_id = obj->func_id;
4728
4729         /* Default VLAN value */
4730         data->default_vlan = cpu_to_le16(params->def_vlan);
4731
4732         /* Inner VLAN stripping */
4733         data->inner_vlan_removal_enable_flg =
4734                 test_bit(BNX2X_Q_UPDATE_IN_VLAN_REM, &params->update_flags);
4735         data->inner_vlan_removal_change_flg =
4736                 test_bit(BNX2X_Q_UPDATE_IN_VLAN_REM_CHNG,
4737                          &params->update_flags);
4738
4739         /* Outer VLAN sripping */
4740         data->outer_vlan_removal_enable_flg =
4741                 test_bit(BNX2X_Q_UPDATE_OUT_VLAN_REM, &params->update_flags);
4742         data->outer_vlan_removal_change_flg =
4743                 test_bit(BNX2X_Q_UPDATE_OUT_VLAN_REM_CHNG,
4744                          &params->update_flags);
4745
4746         /* Drop packets that have source MAC that doesn't belong to this
4747          * Queue.
4748          */
4749         data->anti_spoofing_enable_flg =
4750                 test_bit(BNX2X_Q_UPDATE_ANTI_SPOOF, &params->update_flags);
4751         data->anti_spoofing_change_flg =
4752                 test_bit(BNX2X_Q_UPDATE_ANTI_SPOOF_CHNG, &params->update_flags);
4753
4754         /* Activate/Deactivate */
4755         data->activate_flg =
4756                 test_bit(BNX2X_Q_UPDATE_ACTIVATE, &params->update_flags);
4757         data->activate_change_flg =
4758                 test_bit(BNX2X_Q_UPDATE_ACTIVATE_CHNG, &params->update_flags);
4759
4760         /* Enable default VLAN */
4761         data->default_vlan_enable_flg =
4762                 test_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN, &params->update_flags);
4763         data->default_vlan_change_flg =
4764                 test_bit(BNX2X_Q_UPDATE_DEF_VLAN_EN_CHNG,
4765                          &params->update_flags);
4766
4767         /* silent vlan removal */
4768         data->silent_vlan_change_flg =
4769                 test_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM_CHNG,
4770                          &params->update_flags);
4771         data->silent_vlan_removal_flg =
4772                 test_bit(BNX2X_Q_UPDATE_SILENT_VLAN_REM, &params->update_flags);
4773         data->silent_vlan_value = cpu_to_le16(params->silent_removal_value);
4774         data->silent_vlan_mask = cpu_to_le16(params->silent_removal_mask);
4775 }
4776
4777 static inline int bnx2x_q_send_update(struct bnx2x *bp,
4778                                       struct bnx2x_queue_state_params *params)
4779 {
4780         struct bnx2x_queue_sp_obj *o = params->q_obj;
4781         struct client_update_ramrod_data *rdata =
4782                 (struct client_update_ramrod_data *)o->rdata;
4783         dma_addr_t data_mapping = o->rdata_mapping;
4784         struct bnx2x_queue_update_params *update_params =
4785                 &params->params.update;
4786         u8 cid_index = update_params->cid_index;
4787
4788         if (cid_index >= o->max_cos) {
4789                 BNX2X_ERR("queue[%d]: cid_index (%d) is out of range\n",
4790                           o->cl_id, cid_index);
4791                 return -EINVAL;
4792         }
4793
4794
4795         /* Clear the ramrod data */
4796         memset(rdata, 0, sizeof(*rdata));
4797
4798         /* Fill the ramrod data */
4799         bnx2x_q_fill_update_data(bp, o, update_params, rdata);
4800
4801         /*
4802          *  No need for an explicit memory barrier here as long we would
4803          *  need to ensure the ordering of writing to the SPQ element
4804          *  and updating of the SPQ producer which involves a memory
4805          *  read and we will have to put a full memory barrier there
4806          *  (inside bnx2x_sp_post()).
4807          */
4808
4809         return bnx2x_sp_post(bp, RAMROD_CMD_ID_ETH_CLIENT_UPDATE,
4810                              o->cids[cid_index], U64_HI(data_mapping),
4811                              U64_LO(data_mapping), ETH_CONNECTION_TYPE);
4812 }
4813
4814 /**
4815  * bnx2x_q_send_deactivate - send DEACTIVATE command
4816  *
4817  * @bp:         device handle
4818  * @params:
4819  *
4820  * implemented using the UPDATE command.
4821  */
4822 static inline int bnx2x_q_send_deactivate(struct bnx2x *bp,
4823                                         struct bnx2x_queue_state_params *params)
4824 {
4825         struct bnx2x_queue_update_params *update = &params->params.update;
4826
4827         memset(update, 0, sizeof(*update));
4828
4829         __set_bit(BNX2X_Q_UPDATE_ACTIVATE_CHNG, &update->update_flags);
4830
4831         return bnx2x_q_send_update(bp, params);
4832 }
4833
4834 /**
4835  * bnx2x_q_send_activate - send ACTIVATE command
4836  *
4837  * @bp:         device handle
4838  * @params:
4839  *
4840  * implemented using the UPDATE command.
4841  */
4842 static inline int bnx2x_q_send_activate(struct bnx2x *bp,
4843                                         struct bnx2x_queue_state_params *params)
4844 {
4845         struct bnx2x_queue_update_params *update = &params->params.update;
4846
4847         memset(update, 0, sizeof(*update));
4848
4849         __set_bit(BNX2X_Q_UPDATE_ACTIVATE, &update->update_flags);
4850         __set_bit(BNX2X_Q_UPDATE_ACTIVATE_CHNG, &update->update_flags);
4851
4852         return bnx2x_q_send_update(bp, params);
4853 }
4854
4855 static inline int bnx2x_q_send_update_tpa(struct bnx2x *bp,
4856                                         struct bnx2x_queue_state_params *params)
4857 {
4858         /* TODO: Not implemented yet. */
4859         return -1;
4860 }
4861
4862 static inline int bnx2x_q_send_halt(struct bnx2x *bp,
4863                                     struct bnx2x_queue_state_params *params)
4864 {
4865         struct bnx2x_queue_sp_obj *o = params->q_obj;
4866
4867         return bnx2x_sp_post(bp, RAMROD_CMD_ID_ETH_HALT,
4868                              o->cids[BNX2X_PRIMARY_CID_INDEX], 0, o->cl_id,
4869                              ETH_CONNECTION_TYPE);
4870 }
4871
4872 static inline int bnx2x_q_send_cfc_del(struct bnx2x *bp,
4873                                        struct bnx2x_queue_state_params *params)
4874 {
4875         struct bnx2x_queue_sp_obj *o = params->q_obj;
4876         u8 cid_idx = params->params.cfc_del.cid_index;
4877
4878         if (cid_idx >= o->max_cos) {
4879                 BNX2X_ERR("queue[%d]: cid_index (%d) is out of range\n",
4880                           o->cl_id, cid_idx);
4881                 return -EINVAL;
4882         }
4883
4884         return bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_CFC_DEL,
4885                              o->cids[cid_idx], 0, 0, NONE_CONNECTION_TYPE);
4886 }
4887
4888 static inline int bnx2x_q_send_terminate(struct bnx2x *bp,
4889                                         struct bnx2x_queue_state_params *params)
4890 {
4891         struct bnx2x_queue_sp_obj *o = params->q_obj;
4892         u8 cid_index = params->params.terminate.cid_index;
4893
4894         if (cid_index >= o->max_cos) {
4895                 BNX2X_ERR("queue[%d]: cid_index (%d) is out of range\n",
4896                           o->cl_id, cid_index);
4897                 return -EINVAL;
4898         }
4899
4900         return bnx2x_sp_post(bp, RAMROD_CMD_ID_ETH_TERMINATE,
4901                              o->cids[cid_index], 0, 0, ETH_CONNECTION_TYPE);
4902 }
4903
4904 static inline int bnx2x_q_send_empty(struct bnx2x *bp,
4905                                      struct bnx2x_queue_state_params *params)
4906 {
4907         struct bnx2x_queue_sp_obj *o = params->q_obj;
4908
4909         return bnx2x_sp_post(bp, RAMROD_CMD_ID_ETH_EMPTY,
4910                              o->cids[BNX2X_PRIMARY_CID_INDEX], 0, 0,
4911                              ETH_CONNECTION_TYPE);
4912 }
4913
4914 static inline int bnx2x_queue_send_cmd_cmn(struct bnx2x *bp,
4915                                         struct bnx2x_queue_state_params *params)
4916 {
4917         switch (params->cmd) {
4918         case BNX2X_Q_CMD_INIT:
4919                 return bnx2x_q_init(bp, params);
4920         case BNX2X_Q_CMD_SETUP_TX_ONLY:
4921                 return bnx2x_q_send_setup_tx_only(bp, params);
4922         case BNX2X_Q_CMD_DEACTIVATE:
4923                 return bnx2x_q_send_deactivate(bp, params);
4924         case BNX2X_Q_CMD_ACTIVATE:
4925                 return bnx2x_q_send_activate(bp, params);
4926         case BNX2X_Q_CMD_UPDATE:
4927                 return bnx2x_q_send_update(bp, params);
4928         case BNX2X_Q_CMD_UPDATE_TPA:
4929                 return bnx2x_q_send_update_tpa(bp, params);
4930         case BNX2X_Q_CMD_HALT:
4931                 return bnx2x_q_send_halt(bp, params);
4932         case BNX2X_Q_CMD_CFC_DEL:
4933                 return bnx2x_q_send_cfc_del(bp, params);
4934         case BNX2X_Q_CMD_TERMINATE:
4935                 return bnx2x_q_send_terminate(bp, params);
4936         case BNX2X_Q_CMD_EMPTY:
4937                 return bnx2x_q_send_empty(bp, params);
4938         default:
4939                 BNX2X_ERR("Unknown command: %d\n", params->cmd);
4940                 return -EINVAL;
4941         }
4942 }
4943
4944 static int bnx2x_queue_send_cmd_e1x(struct bnx2x *bp,
4945                                     struct bnx2x_queue_state_params *params)
4946 {
4947         switch (params->cmd) {
4948         case BNX2X_Q_CMD_SETUP:
4949                 return bnx2x_q_send_setup_e1x(bp, params);
4950         case BNX2X_Q_CMD_INIT:
4951         case BNX2X_Q_CMD_SETUP_TX_ONLY:
4952         case BNX2X_Q_CMD_DEACTIVATE:
4953         case BNX2X_Q_CMD_ACTIVATE:
4954         case BNX2X_Q_CMD_UPDATE:
4955         case BNX2X_Q_CMD_UPDATE_TPA:
4956         case BNX2X_Q_CMD_HALT:
4957         case BNX2X_Q_CMD_CFC_DEL:
4958         case BNX2X_Q_CMD_TERMINATE:
4959         case BNX2X_Q_CMD_EMPTY:
4960                 return bnx2x_queue_send_cmd_cmn(bp, params);
4961         default:
4962                 BNX2X_ERR("Unknown command: %d\n", params->cmd);
4963                 return -EINVAL;
4964         }
4965 }
4966
4967 static int bnx2x_queue_send_cmd_e2(struct bnx2x *bp,
4968                                    struct bnx2x_queue_state_params *params)
4969 {
4970         switch (params->cmd) {
4971         case BNX2X_Q_CMD_SETUP:
4972                 return bnx2x_q_send_setup_e2(bp, params);
4973         case BNX2X_Q_CMD_INIT:
4974         case BNX2X_Q_CMD_SETUP_TX_ONLY:
4975         case BNX2X_Q_CMD_DEACTIVATE:
4976         case BNX2X_Q_CMD_ACTIVATE:
4977         case BNX2X_Q_CMD_UPDATE:
4978         case BNX2X_Q_CMD_UPDATE_TPA:
4979         case BNX2X_Q_CMD_HALT:
4980         case BNX2X_Q_CMD_CFC_DEL:
4981         case BNX2X_Q_CMD_TERMINATE:
4982         case BNX2X_Q_CMD_EMPTY:
4983                 return bnx2x_queue_send_cmd_cmn(bp, params);
4984         default:
4985                 BNX2X_ERR("Unknown command: %d\n", params->cmd);
4986                 return -EINVAL;
4987         }
4988 }
4989
4990 /**
4991  * bnx2x_queue_chk_transition - check state machine of a regular Queue
4992  *
4993  * @bp:         device handle
4994  * @o:
4995  * @params:
4996  *
4997  * (not Forwarding)
4998  * It both checks if the requested command is legal in a current
4999  * state and, if it's legal, sets a `next_state' in the object
5000  * that will be used in the completion flow to set the `state'
5001  * of the object.
5002  *
5003  * returns 0 if a requested command is a legal transition,
5004  *         -EINVAL otherwise.
5005  */
5006 static int bnx2x_queue_chk_transition(struct bnx2x *bp,
5007                                       struct bnx2x_queue_sp_obj *o,
5008                                       struct bnx2x_queue_state_params *params)
5009 {
5010         enum bnx2x_q_state state = o->state, next_state = BNX2X_Q_STATE_MAX;
5011         enum bnx2x_queue_cmd cmd = params->cmd;
5012         struct bnx2x_queue_update_params *update_params =
5013                  &params->params.update;
5014         u8 next_tx_only = o->num_tx_only;
5015
5016         /*
5017          * Forget all pending for completion commands if a driver only state
5018          * transition has been requested.
5019          */
5020         if (test_bit(RAMROD_DRV_CLR_ONLY, &params->ramrod_flags)) {
5021                 o->pending = 0;
5022                 o->next_state = BNX2X_Q_STATE_MAX;
5023         }
5024
5025         /*
5026          * Don't allow a next state transition if we are in the middle of
5027          * the previous one.
5028          */
5029         if (o->pending)
5030                 return -EBUSY;
5031
5032         switch (state) {
5033         case BNX2X_Q_STATE_RESET:
5034                 if (cmd == BNX2X_Q_CMD_INIT)
5035                         next_state = BNX2X_Q_STATE_INITIALIZED;
5036
5037                 break;
5038         case BNX2X_Q_STATE_INITIALIZED:
5039                 if (cmd == BNX2X_Q_CMD_SETUP) {
5040                         if (test_bit(BNX2X_Q_FLG_ACTIVE,
5041                                      &params->params.setup.flags))
5042                                 next_state = BNX2X_Q_STATE_ACTIVE;
5043                         else
5044                                 next_state = BNX2X_Q_STATE_INACTIVE;
5045                 }
5046
5047                 break;
5048         case BNX2X_Q_STATE_ACTIVE:
5049                 if (cmd == BNX2X_Q_CMD_DEACTIVATE)
5050                         next_state = BNX2X_Q_STATE_INACTIVE;
5051
5052                 else if ((cmd == BNX2X_Q_CMD_EMPTY) ||
5053                          (cmd == BNX2X_Q_CMD_UPDATE_TPA))
5054                         next_state = BNX2X_Q_STATE_ACTIVE;
5055
5056                 else if (cmd == BNX2X_Q_CMD_SETUP_TX_ONLY) {
5057                         next_state = BNX2X_Q_STATE_MULTI_COS;
5058                         next_tx_only = 1;
5059                 }
5060
5061                 else if (cmd == BNX2X_Q_CMD_HALT)
5062                         next_state = BNX2X_Q_STATE_STOPPED;
5063
5064                 else if (cmd == BNX2X_Q_CMD_UPDATE) {
5065                         /* If "active" state change is requested, update the
5066                          *  state accordingly.
5067                          */
5068                         if (test_bit(BNX2X_Q_UPDATE_ACTIVATE_CHNG,
5069                                      &update_params->update_flags) &&
5070                             !test_bit(BNX2X_Q_UPDATE_ACTIVATE,
5071                                       &update_params->update_flags))
5072                                 next_state = BNX2X_Q_STATE_INACTIVE;
5073                         else
5074                                 next_state = BNX2X_Q_STATE_ACTIVE;
5075                 }
5076
5077                 break;
5078         case BNX2X_Q_STATE_MULTI_COS:
5079                 if (cmd == BNX2X_Q_CMD_TERMINATE)
5080                         next_state = BNX2X_Q_STATE_MCOS_TERMINATED;
5081
5082                 else if (cmd == BNX2X_Q_CMD_SETUP_TX_ONLY) {
5083                         next_state = BNX2X_Q_STATE_MULTI_COS;
5084                         next_tx_only = o->num_tx_only + 1;
5085                 }
5086
5087                 else if ((cmd == BNX2X_Q_CMD_EMPTY) ||
5088                          (cmd == BNX2X_Q_CMD_UPDATE_TPA))
5089                         next_state = BNX2X_Q_STATE_MULTI_COS;
5090
5091                 else if (cmd == BNX2X_Q_CMD_UPDATE) {
5092                         /* If "active" state change is requested, update the
5093                          *  state accordingly.
5094                          */
5095                         if (test_bit(BNX2X_Q_UPDATE_ACTIVATE_CHNG,
5096                                      &update_params->update_flags) &&
5097                             !test_bit(BNX2X_Q_UPDATE_ACTIVATE,
5098                                       &update_params->update_flags))
5099                                 next_state = BNX2X_Q_STATE_INACTIVE;
5100                         else
5101                                 next_state = BNX2X_Q_STATE_MULTI_COS;
5102                 }
5103
5104                 break;
5105         case BNX2X_Q_STATE_MCOS_TERMINATED:
5106                 if (cmd == BNX2X_Q_CMD_CFC_DEL) {
5107                         next_tx_only = o->num_tx_only - 1;
5108                         if (next_tx_only == 0)
5109                                 next_state = BNX2X_Q_STATE_ACTIVE;
5110                         else
5111                                 next_state = BNX2X_Q_STATE_MULTI_COS;
5112                 }
5113
5114                 break;
5115         case BNX2X_Q_STATE_INACTIVE:
5116                 if (cmd == BNX2X_Q_CMD_ACTIVATE)
5117                         next_state = BNX2X_Q_STATE_ACTIVE;
5118
5119                 else if ((cmd == BNX2X_Q_CMD_EMPTY) ||
5120                          (cmd == BNX2X_Q_CMD_UPDATE_TPA))
5121                         next_state = BNX2X_Q_STATE_INACTIVE;
5122
5123                 else if (cmd == BNX2X_Q_CMD_HALT)
5124                         next_state = BNX2X_Q_STATE_STOPPED;
5125
5126                 else if (cmd == BNX2X_Q_CMD_UPDATE) {
5127                         /* If "active" state change is requested, update the
5128                          * state accordingly.
5129                          */
5130                         if (test_bit(BNX2X_Q_UPDATE_ACTIVATE_CHNG,
5131                                      &update_params->update_flags) &&
5132                             test_bit(BNX2X_Q_UPDATE_ACTIVATE,
5133                                      &update_params->update_flags)){
5134                                 if (o->num_tx_only == 0)
5135                                         next_state = BNX2X_Q_STATE_ACTIVE;
5136                                 else /* tx only queues exist for this queue */
5137                                         next_state = BNX2X_Q_STATE_MULTI_COS;
5138                         } else
5139                                 next_state = BNX2X_Q_STATE_INACTIVE;
5140                 }
5141
5142                 break;
5143         case BNX2X_Q_STATE_STOPPED:
5144                 if (cmd == BNX2X_Q_CMD_TERMINATE)
5145                         next_state = BNX2X_Q_STATE_TERMINATED;
5146
5147                 break;
5148         case BNX2X_Q_STATE_TERMINATED:
5149                 if (cmd == BNX2X_Q_CMD_CFC_DEL)
5150                         next_state = BNX2X_Q_STATE_RESET;
5151
5152                 break;
5153         default:
5154                 BNX2X_ERR("Illegal state: %d\n", state);
5155         }
5156
5157         /* Transition is assured */
5158         if (next_state != BNX2X_Q_STATE_MAX) {
5159                 DP(BNX2X_MSG_SP, "Good state transition: %d(%d)->%d\n",
5160                                  state, cmd, next_state);
5161                 o->next_state = next_state;
5162                 o->next_tx_only = next_tx_only;
5163                 return 0;
5164         }
5165
5166         DP(BNX2X_MSG_SP, "Bad state transition request: %d %d\n", state, cmd);
5167
5168         return -EINVAL;
5169 }
5170
5171 void bnx2x_init_queue_obj(struct bnx2x *bp,
5172                           struct bnx2x_queue_sp_obj *obj,
5173                           u8 cl_id, u32 *cids, u8 cid_cnt, u8 func_id,
5174                           void *rdata,
5175                           dma_addr_t rdata_mapping, unsigned long type)
5176 {
5177         memset(obj, 0, sizeof(*obj));
5178
5179         /* We support only BNX2X_MULTI_TX_COS Tx CoS at the moment */
5180         BUG_ON(BNX2X_MULTI_TX_COS < cid_cnt);
5181
5182         memcpy(obj->cids, cids, sizeof(obj->cids[0]) * cid_cnt);
5183         obj->max_cos = cid_cnt;
5184         obj->cl_id = cl_id;
5185         obj->func_id = func_id;
5186         obj->rdata = rdata;
5187         obj->rdata_mapping = rdata_mapping;
5188         obj->type = type;
5189         obj->next_state = BNX2X_Q_STATE_MAX;
5190
5191         if (CHIP_IS_E1x(bp))
5192                 obj->send_cmd = bnx2x_queue_send_cmd_e1x;
5193         else
5194                 obj->send_cmd = bnx2x_queue_send_cmd_e2;
5195
5196         obj->check_transition = bnx2x_queue_chk_transition;
5197
5198         obj->complete_cmd = bnx2x_queue_comp_cmd;
5199         obj->wait_comp = bnx2x_queue_wait_comp;
5200         obj->set_pending = bnx2x_queue_set_pending;
5201 }
5202
5203 /********************** Function state object *********************************/
5204 enum bnx2x_func_state bnx2x_func_get_state(struct bnx2x *bp,
5205                                            struct bnx2x_func_sp_obj *o)
5206 {
5207         /* in the middle of transaction - return INVALID state */
5208         if (o->pending)
5209                 return BNX2X_F_STATE_MAX;
5210
5211         /*
5212          * unsure the order of reading of o->pending and o->state
5213          * o->pending should be read first
5214          */
5215         rmb();
5216
5217         return o->state;
5218 }
5219
5220 static int bnx2x_func_wait_comp(struct bnx2x *bp,
5221                                 struct bnx2x_func_sp_obj *o,
5222                                 enum bnx2x_func_cmd cmd)
5223 {
5224         return bnx2x_state_wait(bp, cmd, &o->pending);
5225 }
5226
5227 /**
5228  * bnx2x_func_state_change_comp - complete the state machine transition
5229  *
5230  * @bp:         device handle
5231  * @o:
5232  * @cmd:
5233  *
5234  * Called on state change transition. Completes the state
5235  * machine transition only - no HW interaction.
5236  */
5237 static inline int bnx2x_func_state_change_comp(struct bnx2x *bp,
5238                                                struct bnx2x_func_sp_obj *o,
5239                                                enum bnx2x_func_cmd cmd)
5240 {
5241         unsigned long cur_pending = o->pending;
5242
5243         if (!test_and_clear_bit(cmd, &cur_pending)) {
5244                 BNX2X_ERR("Bad MC reply %d for func %d in state %d pending 0x%lx, next_state %d\n",
5245                           cmd, BP_FUNC(bp), o->state,
5246                           cur_pending, o->next_state);
5247                 return -EINVAL;
5248         }
5249
5250         DP(BNX2X_MSG_SP,
5251            "Completing command %d for func %d, setting state to %d\n",
5252            cmd, BP_FUNC(bp), o->next_state);
5253
5254         o->state = o->next_state;
5255         o->next_state = BNX2X_F_STATE_MAX;
5256
5257         /* It's important that o->state and o->next_state are
5258          * updated before o->pending.
5259          */
5260         wmb();
5261
5262         clear_bit(cmd, &o->pending);
5263         smp_mb__after_clear_bit();
5264
5265         return 0;
5266 }
5267
5268 /**
5269  * bnx2x_func_comp_cmd - complete the state change command
5270  *
5271  * @bp:         device handle
5272  * @o:
5273  * @cmd:
5274  *
5275  * Checks that the arrived completion is expected.
5276  */
5277 static int bnx2x_func_comp_cmd(struct bnx2x *bp,
5278                                struct bnx2x_func_sp_obj *o,
5279                                enum bnx2x_func_cmd cmd)
5280 {
5281         /* Complete the state machine part first, check if it's a
5282          * legal completion.
5283          */
5284         int rc = bnx2x_func_state_change_comp(bp, o, cmd);
5285         return rc;
5286 }
5287
5288 /**
5289  * bnx2x_func_chk_transition - perform function state machine transition
5290  *
5291  * @bp:         device handle
5292  * @o:
5293  * @params:
5294  *
5295  * It both checks if the requested command is legal in a current
5296  * state and, if it's legal, sets a `next_state' in the object
5297  * that will be used in the completion flow to set the `state'
5298  * of the object.
5299  *
5300  * returns 0 if a requested command is a legal transition,
5301  *         -EINVAL otherwise.
5302  */
5303 static int bnx2x_func_chk_transition(struct bnx2x *bp,
5304                                      struct bnx2x_func_sp_obj *o,
5305                                      struct bnx2x_func_state_params *params)
5306 {
5307         enum bnx2x_func_state state = o->state, next_state = BNX2X_F_STATE_MAX;
5308         enum bnx2x_func_cmd cmd = params->cmd;
5309
5310         /*
5311          * Forget all pending for completion commands if a driver only state
5312          * transition has been requested.
5313          */
5314         if (test_bit(RAMROD_DRV_CLR_ONLY, &params->ramrod_flags)) {
5315                 o->pending = 0;
5316                 o->next_state = BNX2X_F_STATE_MAX;
5317         }
5318
5319         /*
5320          * Don't allow a next state transition if we are in the middle of
5321          * the previous one.
5322          */
5323         if (o->pending)
5324                 return -EBUSY;
5325
5326         switch (state) {
5327         case BNX2X_F_STATE_RESET:
5328                 if (cmd == BNX2X_F_CMD_HW_INIT)
5329                         next_state = BNX2X_F_STATE_INITIALIZED;
5330
5331                 break;
5332         case BNX2X_F_STATE_INITIALIZED:
5333                 if (cmd == BNX2X_F_CMD_START)
5334                         next_state = BNX2X_F_STATE_STARTED;
5335
5336                 else if (cmd == BNX2X_F_CMD_HW_RESET)
5337                         next_state = BNX2X_F_STATE_RESET;
5338
5339                 break;
5340         case BNX2X_F_STATE_STARTED:
5341                 if (cmd == BNX2X_F_CMD_STOP)
5342                         next_state = BNX2X_F_STATE_INITIALIZED;
5343                 /* afex ramrods can be sent only in started mode, and only
5344                  * if not pending for function_stop ramrod completion
5345                  * for these events - next state remained STARTED.
5346                  */
5347                 else if ((cmd == BNX2X_F_CMD_AFEX_UPDATE) &&
5348                          (!test_bit(BNX2X_F_CMD_STOP, &o->pending)))
5349                         next_state = BNX2X_F_STATE_STARTED;
5350
5351                 else if ((cmd == BNX2X_F_CMD_AFEX_VIFLISTS) &&
5352                          (!test_bit(BNX2X_F_CMD_STOP, &o->pending)))
5353                         next_state = BNX2X_F_STATE_STARTED;
5354                 else if (cmd == BNX2X_F_CMD_TX_STOP)
5355                         next_state = BNX2X_F_STATE_TX_STOPPED;
5356
5357                 break;
5358         case BNX2X_F_STATE_TX_STOPPED:
5359                 if (cmd == BNX2X_F_CMD_TX_START)
5360                         next_state = BNX2X_F_STATE_STARTED;
5361
5362                 break;
5363         default:
5364                 BNX2X_ERR("Unknown state: %d\n", state);
5365         }
5366
5367         /* Transition is assured */
5368         if (next_state != BNX2X_F_STATE_MAX) {
5369                 DP(BNX2X_MSG_SP, "Good function state transition: %d(%d)->%d\n",
5370                                  state, cmd, next_state);
5371                 o->next_state = next_state;
5372                 return 0;
5373         }
5374
5375         DP(BNX2X_MSG_SP, "Bad function state transition request: %d %d\n",
5376                          state, cmd);
5377
5378         return -EINVAL;
5379 }
5380
5381 /**
5382  * bnx2x_func_init_func - performs HW init at function stage
5383  *
5384  * @bp:         device handle
5385  * @drv:
5386  *
5387  * Init HW when the current phase is
5388  * FW_MSG_CODE_DRV_LOAD_FUNCTION: initialize only FUNCTION-only
5389  * HW blocks.
5390  */
5391 static inline int bnx2x_func_init_func(struct bnx2x *bp,
5392                                        const struct bnx2x_func_sp_drv_ops *drv)
5393 {
5394         return drv->init_hw_func(bp);
5395 }
5396
5397 /**
5398  * bnx2x_func_init_port - performs HW init at port stage
5399  *
5400  * @bp:         device handle
5401  * @drv:
5402  *
5403  * Init HW when the current phase is
5404  * FW_MSG_CODE_DRV_LOAD_PORT: initialize PORT-only and
5405  * FUNCTION-only HW blocks.
5406  *
5407  */
5408 static inline int bnx2x_func_init_port(struct bnx2x *bp,
5409                                        const struct bnx2x_func_sp_drv_ops *drv)
5410 {
5411         int rc = drv->init_hw_port(bp);
5412         if (rc)
5413                 return rc;
5414
5415         return bnx2x_func_init_func(bp, drv);
5416 }
5417
5418 /**
5419  * bnx2x_func_init_cmn_chip - performs HW init at chip-common stage
5420  *
5421  * @bp:         device handle
5422  * @drv:
5423  *
5424  * Init HW when the current phase is
5425  * FW_MSG_CODE_DRV_LOAD_COMMON_CHIP: initialize COMMON_CHIP,
5426  * PORT-only and FUNCTION-only HW blocks.
5427  */
5428 static inline int bnx2x_func_init_cmn_chip(struct bnx2x *bp,
5429                                         const struct bnx2x_func_sp_drv_ops *drv)
5430 {
5431         int rc = drv->init_hw_cmn_chip(bp);
5432         if (rc)
5433                 return rc;
5434
5435         return bnx2x_func_init_port(bp, drv);
5436 }
5437
5438 /**
5439  * bnx2x_func_init_cmn - performs HW init at common stage
5440  *
5441  * @bp:         device handle
5442  * @drv:
5443  *
5444  * Init HW when the current phase is
5445  * FW_MSG_CODE_DRV_LOAD_COMMON_CHIP: initialize COMMON,
5446  * PORT-only and FUNCTION-only HW blocks.
5447  */
5448 static inline int bnx2x_func_init_cmn(struct bnx2x *bp,
5449                                       const struct bnx2x_func_sp_drv_ops *drv)
5450 {
5451         int rc = drv->init_hw_cmn(bp);
5452         if (rc)
5453                 return rc;
5454
5455         return bnx2x_func_init_port(bp, drv);
5456 }
5457
5458 static int bnx2x_func_hw_init(struct bnx2x *bp,
5459                               struct bnx2x_func_state_params *params)
5460 {
5461         u32 load_code = params->params.hw_init.load_phase;
5462         struct bnx2x_func_sp_obj *o = params->f_obj;
5463         const struct bnx2x_func_sp_drv_ops *drv = o->drv;
5464         int rc = 0;
5465
5466         DP(BNX2X_MSG_SP, "function %d  load_code %x\n",
5467                          BP_ABS_FUNC(bp), load_code);
5468
5469         /* Prepare buffers for unzipping the FW */
5470         rc = drv->gunzip_init(bp);
5471         if (rc)
5472                 return rc;
5473
5474         /* Prepare FW */
5475         rc = drv->init_fw(bp);
5476         if (rc) {
5477                 BNX2X_ERR("Error loading firmware\n");
5478                 goto init_err;
5479         }
5480
5481         /* Handle the beginning of COMMON_XXX pases separatelly... */
5482         switch (load_code) {
5483         case FW_MSG_CODE_DRV_LOAD_COMMON_CHIP:
5484                 rc = bnx2x_func_init_cmn_chip(bp, drv);
5485                 if (rc)
5486                         goto init_err;
5487
5488                 break;
5489         case FW_MSG_CODE_DRV_LOAD_COMMON:
5490                 rc = bnx2x_func_init_cmn(bp, drv);
5491                 if (rc)
5492                         goto init_err;
5493
5494                 break;
5495         case FW_MSG_CODE_DRV_LOAD_PORT:
5496                 rc = bnx2x_func_init_port(bp, drv);
5497                 if (rc)
5498                         goto init_err;
5499
5500                 break;
5501         case FW_MSG_CODE_DRV_LOAD_FUNCTION:
5502                 rc = bnx2x_func_init_func(bp, drv);
5503                 if (rc)
5504                         goto init_err;
5505
5506                 break;
5507         default:
5508                 BNX2X_ERR("Unknown load_code (0x%x) from MCP\n", load_code);
5509                 rc = -EINVAL;
5510         }
5511
5512 init_err:
5513         drv->gunzip_end(bp);
5514
5515         /* In case of success, complete the comand immediatelly: no ramrods
5516          * have been sent.
5517          */
5518         if (!rc)
5519                 o->complete_cmd(bp, o, BNX2X_F_CMD_HW_INIT);
5520
5521         return rc;
5522 }
5523
5524 /**
5525  * bnx2x_func_reset_func - reset HW at function stage
5526  *
5527  * @bp:         device handle
5528  * @drv:
5529  *
5530  * Reset HW at FW_MSG_CODE_DRV_UNLOAD_FUNCTION stage: reset only
5531  * FUNCTION-only HW blocks.
5532  */
5533 static inline void bnx2x_func_reset_func(struct bnx2x *bp,
5534                                         const struct bnx2x_func_sp_drv_ops *drv)
5535 {
5536         drv->reset_hw_func(bp);
5537 }
5538
5539 /**
5540  * bnx2x_func_reset_port - reser HW at port stage
5541  *
5542  * @bp:         device handle
5543  * @drv:
5544  *
5545  * Reset HW at FW_MSG_CODE_DRV_UNLOAD_PORT stage: reset
5546  * FUNCTION-only and PORT-only HW blocks.
5547  *
5548  *                 !!!IMPORTANT!!!
5549  *
5550  * It's important to call reset_port before reset_func() as the last thing
5551  * reset_func does is pf_disable() thus disabling PGLUE_B, which
5552  * makes impossible any DMAE transactions.
5553  */
5554 static inline void bnx2x_func_reset_port(struct bnx2x *bp,
5555                                         const struct bnx2x_func_sp_drv_ops *drv)
5556 {
5557         drv->reset_hw_port(bp);
5558         bnx2x_func_reset_func(bp, drv);
5559 }
5560
5561 /**
5562  * bnx2x_func_reset_cmn - reser HW at common stage
5563  *
5564  * @bp:         device handle
5565  * @drv:
5566  *
5567  * Reset HW at FW_MSG_CODE_DRV_UNLOAD_COMMON and
5568  * FW_MSG_CODE_DRV_UNLOAD_COMMON_CHIP stages: reset COMMON,
5569  * COMMON_CHIP, FUNCTION-only and PORT-only HW blocks.
5570  */
5571 static inline void bnx2x_func_reset_cmn(struct bnx2x *bp,
5572                                         const struct bnx2x_func_sp_drv_ops *drv)
5573 {
5574         bnx2x_func_reset_port(bp, drv);
5575         drv->reset_hw_cmn(bp);
5576 }
5577
5578
5579 static inline int bnx2x_func_hw_reset(struct bnx2x *bp,
5580                                       struct bnx2x_func_state_params *params)
5581 {
5582         u32 reset_phase = params->params.hw_reset.reset_phase;
5583         struct bnx2x_func_sp_obj *o = params->f_obj;
5584         const struct bnx2x_func_sp_drv_ops *drv = o->drv;
5585
5586         DP(BNX2X_MSG_SP, "function %d  reset_phase %x\n", BP_ABS_FUNC(bp),
5587                          reset_phase);
5588
5589         switch (reset_phase) {
5590         case FW_MSG_CODE_DRV_UNLOAD_COMMON:
5591                 bnx2x_func_reset_cmn(bp, drv);
5592                 break;
5593         case FW_MSG_CODE_DRV_UNLOAD_PORT:
5594                 bnx2x_func_reset_port(bp, drv);
5595                 break;
5596         case FW_MSG_CODE_DRV_UNLOAD_FUNCTION:
5597                 bnx2x_func_reset_func(bp, drv);
5598                 break;
5599         default:
5600                 BNX2X_ERR("Unknown reset_phase (0x%x) from MCP\n",
5601                            reset_phase);
5602                 break;
5603         }
5604
5605         /* Complete the comand immediatelly: no ramrods have been sent. */
5606         o->complete_cmd(bp, o, BNX2X_F_CMD_HW_RESET);
5607
5608         return 0;
5609 }
5610
5611 static inline int bnx2x_func_send_start(struct bnx2x *bp,
5612                                         struct bnx2x_func_state_params *params)
5613 {
5614         struct bnx2x_func_sp_obj *o = params->f_obj;
5615         struct function_start_data *rdata =
5616                 (struct function_start_data *)o->rdata;
5617         dma_addr_t data_mapping = o->rdata_mapping;
5618         struct bnx2x_func_start_params *start_params = &params->params.start;
5619
5620         memset(rdata, 0, sizeof(*rdata));
5621
5622         /* Fill the ramrod data with provided parameters */
5623         rdata->function_mode = cpu_to_le16(start_params->mf_mode);
5624         rdata->sd_vlan_tag   = cpu_to_le16(start_params->sd_vlan_tag);
5625         rdata->path_id       = BP_PATH(bp);
5626         rdata->network_cos_mode = start_params->network_cos_mode;
5627
5628         /*
5629          *  No need for an explicit memory barrier here as long we would
5630          *  need to ensure the ordering of writing to the SPQ element
5631          *  and updating of the SPQ producer which involves a memory
5632          *  read and we will have to put a full memory barrier there
5633          *  (inside bnx2x_sp_post()).
5634          */
5635
5636         return bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_FUNCTION_START, 0,
5637                              U64_HI(data_mapping),
5638                              U64_LO(data_mapping), NONE_CONNECTION_TYPE);
5639 }
5640
5641 static inline int bnx2x_func_send_afex_update(struct bnx2x *bp,
5642                                          struct bnx2x_func_state_params *params)
5643 {
5644         struct bnx2x_func_sp_obj *o = params->f_obj;
5645         struct function_update_data *rdata =
5646                 (struct function_update_data *)o->afex_rdata;
5647         dma_addr_t data_mapping = o->afex_rdata_mapping;
5648         struct bnx2x_func_afex_update_params *afex_update_params =
5649                 &params->params.afex_update;
5650
5651         memset(rdata, 0, sizeof(*rdata));
5652
5653         /* Fill the ramrod data with provided parameters */
5654         rdata->vif_id_change_flg = 1;
5655         rdata->vif_id = cpu_to_le16(afex_update_params->vif_id);
5656         rdata->afex_default_vlan_change_flg = 1;
5657         rdata->afex_default_vlan =
5658                 cpu_to_le16(afex_update_params->afex_default_vlan);
5659         rdata->allowed_priorities_change_flg = 1;
5660         rdata->allowed_priorities = afex_update_params->allowed_priorities;
5661
5662         /*  No need for an explicit memory barrier here as long we would
5663          *  need to ensure the ordering of writing to the SPQ element
5664          *  and updating of the SPQ producer which involves a memory
5665          *  read and we will have to put a full memory barrier there
5666          *  (inside bnx2x_sp_post()).
5667          */
5668         DP(BNX2X_MSG_SP,
5669            "afex: sending func_update vif_id 0x%x dvlan 0x%x prio 0x%x\n",
5670            rdata->vif_id,
5671            rdata->afex_default_vlan, rdata->allowed_priorities);
5672
5673         return bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_FUNCTION_UPDATE, 0,
5674                              U64_HI(data_mapping),
5675                              U64_LO(data_mapping), NONE_CONNECTION_TYPE);
5676 }
5677
5678 static
5679 inline int bnx2x_func_send_afex_viflists(struct bnx2x *bp,
5680                                          struct bnx2x_func_state_params *params)
5681 {
5682         struct bnx2x_func_sp_obj *o = params->f_obj;
5683         struct afex_vif_list_ramrod_data *rdata =
5684                 (struct afex_vif_list_ramrod_data *)o->afex_rdata;
5685         struct bnx2x_func_afex_viflists_params *afex_viflist_params =
5686                 &params->params.afex_viflists;
5687         u64 *p_rdata = (u64 *)rdata;
5688
5689         memset(rdata, 0, sizeof(*rdata));
5690
5691         /* Fill the ramrod data with provided parameters */
5692         rdata->vif_list_index = afex_viflist_params->vif_list_index;
5693         rdata->func_bit_map = afex_viflist_params->func_bit_map;
5694         rdata->afex_vif_list_command =
5695                 afex_viflist_params->afex_vif_list_command;
5696         rdata->func_to_clear = afex_viflist_params->func_to_clear;
5697
5698         /* send in echo type of sub command */
5699         rdata->echo = afex_viflist_params->afex_vif_list_command;
5700
5701         /*  No need for an explicit memory barrier here as long we would
5702          *  need to ensure the ordering of writing to the SPQ element
5703          *  and updating of the SPQ producer which involves a memory
5704          *  read and we will have to put a full memory barrier there
5705          *  (inside bnx2x_sp_post()).
5706          */
5707
5708         DP(BNX2X_MSG_SP, "afex: ramrod lists, cmd 0x%x index 0x%x func_bit_map 0x%x func_to_clr 0x%x\n",
5709            rdata->afex_vif_list_command, rdata->vif_list_index,
5710            rdata->func_bit_map, rdata->func_to_clear);
5711
5712         /* this ramrod sends data directly and not through DMA mapping */
5713         return bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_AFEX_VIF_LISTS, 0,
5714                              U64_HI(*p_rdata), U64_LO(*p_rdata),
5715                              NONE_CONNECTION_TYPE);
5716 }
5717
5718 static inline int bnx2x_func_send_stop(struct bnx2x *bp,
5719                                        struct bnx2x_func_state_params *params)
5720 {
5721         return bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_FUNCTION_STOP, 0, 0, 0,
5722                              NONE_CONNECTION_TYPE);
5723 }
5724
5725 static inline int bnx2x_func_send_tx_stop(struct bnx2x *bp,
5726                                        struct bnx2x_func_state_params *params)
5727 {
5728         return bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_STOP_TRAFFIC, 0, 0, 0,
5729                              NONE_CONNECTION_TYPE);
5730 }
5731 static inline int bnx2x_func_send_tx_start(struct bnx2x *bp,
5732                                        struct bnx2x_func_state_params *params)
5733 {
5734         struct bnx2x_func_sp_obj *o = params->f_obj;
5735         struct flow_control_configuration *rdata =
5736                 (struct flow_control_configuration *)o->rdata;
5737         dma_addr_t data_mapping = o->rdata_mapping;
5738         struct bnx2x_func_tx_start_params *tx_start_params =
5739                 &params->params.tx_start;
5740         int i;
5741
5742         memset(rdata, 0, sizeof(*rdata));
5743
5744         rdata->dcb_enabled = tx_start_params->dcb_enabled;
5745         rdata->dcb_version = tx_start_params->dcb_version;
5746         rdata->dont_add_pri_0_en = tx_start_params->dont_add_pri_0_en;
5747
5748         for (i = 0; i < ARRAY_SIZE(rdata->traffic_type_to_priority_cos); i++)
5749                 rdata->traffic_type_to_priority_cos[i] =
5750                         tx_start_params->traffic_type_to_priority_cos[i];
5751
5752         return bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_START_TRAFFIC, 0,
5753                              U64_HI(data_mapping),
5754                              U64_LO(data_mapping), NONE_CONNECTION_TYPE);
5755 }
5756
5757 static int bnx2x_func_send_cmd(struct bnx2x *bp,
5758                                struct bnx2x_func_state_params *params)
5759 {
5760         switch (params->cmd) {
5761         case BNX2X_F_CMD_HW_INIT:
5762                 return bnx2x_func_hw_init(bp, params);
5763         case BNX2X_F_CMD_START:
5764                 return bnx2x_func_send_start(bp, params);
5765         case BNX2X_F_CMD_STOP:
5766                 return bnx2x_func_send_stop(bp, params);
5767         case BNX2X_F_CMD_HW_RESET:
5768                 return bnx2x_func_hw_reset(bp, params);
5769         case BNX2X_F_CMD_AFEX_UPDATE:
5770                 return bnx2x_func_send_afex_update(bp, params);
5771         case BNX2X_F_CMD_AFEX_VIFLISTS:
5772                 return bnx2x_func_send_afex_viflists(bp, params);
5773         case BNX2X_F_CMD_TX_STOP:
5774                 return bnx2x_func_send_tx_stop(bp, params);
5775         case BNX2X_F_CMD_TX_START:
5776                 return bnx2x_func_send_tx_start(bp, params);
5777         default:
5778                 BNX2X_ERR("Unknown command: %d\n", params->cmd);
5779                 return -EINVAL;
5780         }
5781 }
5782
5783 void bnx2x_init_func_obj(struct bnx2x *bp,
5784                          struct bnx2x_func_sp_obj *obj,
5785                          void *rdata, dma_addr_t rdata_mapping,
5786                          void *afex_rdata, dma_addr_t afex_rdata_mapping,
5787                          struct bnx2x_func_sp_drv_ops *drv_iface)
5788 {
5789         memset(obj, 0, sizeof(*obj));
5790
5791         mutex_init(&obj->one_pending_mutex);
5792
5793         obj->rdata = rdata;
5794         obj->rdata_mapping = rdata_mapping;
5795         obj->afex_rdata = afex_rdata;
5796         obj->afex_rdata_mapping = afex_rdata_mapping;
5797         obj->send_cmd = bnx2x_func_send_cmd;
5798         obj->check_transition = bnx2x_func_chk_transition;
5799         obj->complete_cmd = bnx2x_func_comp_cmd;
5800         obj->wait_comp = bnx2x_func_wait_comp;
5801
5802         obj->drv = drv_iface;
5803 }
5804
5805 /**
5806  * bnx2x_func_state_change - perform Function state change transition
5807  *
5808  * @bp:         device handle
5809  * @params:     parameters to perform the transaction
5810  *
5811  * returns 0 in case of successfully completed transition,
5812  *         negative error code in case of failure, positive
5813  *         (EBUSY) value if there is a completion to that is
5814  *         still pending (possible only if RAMROD_COMP_WAIT is
5815  *         not set in params->ramrod_flags for asynchronous
5816  *         commands).
5817  */
5818 int bnx2x_func_state_change(struct bnx2x *bp,
5819                             struct bnx2x_func_state_params *params)
5820 {
5821         struct bnx2x_func_sp_obj *o = params->f_obj;
5822         int rc;
5823         enum bnx2x_func_cmd cmd = params->cmd;
5824         unsigned long *pending = &o->pending;
5825
5826         mutex_lock(&o->one_pending_mutex);
5827
5828         /* Check that the requested transition is legal */
5829         if (o->check_transition(bp, o, params)) {
5830                 mutex_unlock(&o->one_pending_mutex);
5831                 return -EINVAL;
5832         }
5833
5834         /* Set "pending" bit */
5835         set_bit(cmd, pending);
5836
5837         /* Don't send a command if only driver cleanup was requested */
5838         if (test_bit(RAMROD_DRV_CLR_ONLY, &params->ramrod_flags)) {
5839                 bnx2x_func_state_change_comp(bp, o, cmd);
5840                 mutex_unlock(&o->one_pending_mutex);
5841         } else {
5842                 /* Send a ramrod */
5843                 rc = o->send_cmd(bp, params);
5844
5845                 mutex_unlock(&o->one_pending_mutex);
5846
5847                 if (rc) {
5848                         o->next_state = BNX2X_F_STATE_MAX;
5849                         clear_bit(cmd, pending);
5850                         smp_mb__after_clear_bit();
5851                         return rc;
5852                 }
5853
5854                 if (test_bit(RAMROD_COMP_WAIT, &params->ramrod_flags)) {
5855                         rc = o->wait_comp(bp, o, cmd);
5856                         if (rc)
5857                                 return rc;
5858
5859                         return 0;
5860                 }
5861         }
5862
5863         return !!test_bit(cmd, pending);
5864 }