drivers/infiniband/hw/bnxt_re/qplib_fp.c

   1 /*
   2  * Broadcom NetXtreme-E RoCE driver.
   3  *
   4  * Copyright (c) 2016 - 2017, Broadcom. All rights reserved.  The term
   5  * Broadcom refers to Broadcom Limited and/or its subsidiaries.
   6  *
   7  * This software is available to you under a choice of one of two
   8  * licenses.  You may choose to be licensed under the terms of the GNU
   9  * General Public License (GPL) Version 2, available from the file
  10  * COPYING in the main directory of this source tree, or the
  11  * BSD license below:
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  *
  17  * 1. Redistributions of source code must retain the above copyright
  18  *    notice, this list of conditions and the following disclaimer.
  19  * 2. Redistributions in binary form must reproduce the above copyright
  20  *    notice, this list of conditions and the following disclaimer in
  21  *    the documentation and/or other materials provided with the
  22  *    distribution.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
  25  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  26  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  27  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
  28  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  31  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  32  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  33  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  34  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  *
  36  * Description: Fast Path Operators
  37  */
  38
  39 #define dev_fmt(fmt) "QPLIB: " fmt
  40
  41 #include <linux/interrupt.h>
  42 #include <linux/spinlock.h>
  43 #include <linux/sched.h>
  44 #include <linux/slab.h>
  45 #include <linux/pci.h>
  46 #include <linux/delay.h>
  47 #include <linux/prefetch.h>
  48 #include <linux/if_ether.h>
  49 #include <rdma/ib_mad.h>
  50
  51 #include "roce_hsi.h"
  52
  53 #include "qplib_res.h"
  54 #include "qplib_rcfw.h"
  55 #include "qplib_sp.h"
  56 #include "qplib_fp.h"
  57
  58 static void __clean_cq(struct bnxt_qplib_cq *cq, u64 qp);
  59
  60 static void bnxt_qplib_cancel_phantom_processing(struct bnxt_qplib_qp *qp)
  61 {
  62         qp->sq.condition = false;
  63         qp->sq.send_phantom = false;
  64         qp->sq.single = false;
  65 }
  66
  67 /* Flush list */
  68 static void __bnxt_qplib_add_flush_qp(struct bnxt_qplib_qp *qp)
  69 {
  70         struct bnxt_qplib_cq *scq, *rcq;
  71
  72         scq = qp->scq;
  73         rcq = qp->rcq;
  74
  75         if (!qp->sq.flushed) {
  76                 dev_dbg(&scq->hwq.pdev->dev,
  77                         "FP: Adding to SQ Flush list = %p\n", qp);
  78                 bnxt_qplib_cancel_phantom_processing(qp);
  79                 list_add_tail(&qp->sq_flush, &scq->sqf_head);
  80                 qp->sq.flushed = true;
  81         }
  82         if (!qp->srq) {
  83                 if (!qp->rq.flushed) {
  84                         dev_dbg(&rcq->hwq.pdev->dev,
  85                                 "FP: Adding to RQ Flush list = %p\n", qp);
  86                         list_add_tail(&qp->rq_flush, &rcq->rqf_head);
  87                         qp->rq.flushed = true;
  88                 }
  89         }
  90 }
  91
  92 static void bnxt_qplib_acquire_cq_flush_locks(struct bnxt_qplib_qp *qp,
  93                                        unsigned long *flags)
  94         __acquires(&qp->scq->flush_lock) __acquires(&qp->rcq->flush_lock)
  95 {
  96         spin_lock_irqsave(&qp->scq->flush_lock, *flags);
  97         if (qp->scq == qp->rcq)
  98                 __acquire(&qp->rcq->flush_lock);
  99         else
 100                 spin_lock(&qp->rcq->flush_lock);
 101 }
 102
 103 static void bnxt_qplib_release_cq_flush_locks(struct bnxt_qplib_qp *qp,
 104                                        unsigned long *flags)
 105         __releases(&qp->scq->flush_lock) __releases(&qp->rcq->flush_lock)
 106 {
 107         if (qp->scq == qp->rcq)
 108                 __release(&qp->rcq->flush_lock);
 109         else
 110                 spin_unlock(&qp->rcq->flush_lock);
 111         spin_unlock_irqrestore(&qp->scq->flush_lock, *flags);
 112 }
 113
 114 void bnxt_qplib_add_flush_qp(struct bnxt_qplib_qp *qp)
 115 {
 116         unsigned long flags;
 117
 118         bnxt_qplib_acquire_cq_flush_locks(qp, &flags);
 119         __bnxt_qplib_add_flush_qp(qp);
 120         bnxt_qplib_release_cq_flush_locks(qp, &flags);
 121 }
 122
 123 static void __bnxt_qplib_del_flush_qp(struct bnxt_qplib_qp *qp)
 124 {
 125         if (qp->sq.flushed) {
 126                 qp->sq.flushed = false;
 127                 list_del(&qp->sq_flush);
 128         }
 129         if (!qp->srq) {
 130                 if (qp->rq.flushed) {
 131                         qp->rq.flushed = false;
 132                         list_del(&qp->rq_flush);
 133                 }
 134         }
 135 }
 136
 137 void bnxt_qplib_clean_qp(struct bnxt_qplib_qp *qp)
 138 {
 139         unsigned long flags;
 140
 141         bnxt_qplib_acquire_cq_flush_locks(qp, &flags);
 142         __clean_cq(qp->scq, (u64)(unsigned long)qp);
 143         qp->sq.hwq.prod = 0;
 144         qp->sq.hwq.cons = 0;
 145         __clean_cq(qp->rcq, (u64)(unsigned long)qp);
 146         qp->rq.hwq.prod = 0;
 147         qp->rq.hwq.cons = 0;
 148
 149         __bnxt_qplib_del_flush_qp(qp);
 150         bnxt_qplib_release_cq_flush_locks(qp, &flags);
 151 }
 152
 153 static void bnxt_qpn_cqn_sched_task(struct work_struct *work)
 154 {
 155         struct bnxt_qplib_nq_work *nq_work =
 156                         container_of(work, struct bnxt_qplib_nq_work, work);
 157
 158         struct bnxt_qplib_cq *cq = nq_work->cq;
 159         struct bnxt_qplib_nq *nq = nq_work->nq;
 160
 161         if (cq && nq) {
 162                 spin_lock_bh(&cq->compl_lock);
 163                 if (atomic_read(&cq->arm_state) && nq->cqn_handler) {
 164                         dev_dbg(&nq->pdev->dev,
 165                                 "%s:Trigger cq  = %p event nq = %p\n",
 166                                 __func__, cq, nq);
 167                         nq->cqn_handler(nq, cq);
 168                 }
 169                 spin_unlock_bh(&cq->compl_lock);
 170         }
 171         kfree(nq_work);
 172 }
 173
 174 static void bnxt_qplib_free_qp_hdr_buf(struct bnxt_qplib_res *res,
 175                                        struct bnxt_qplib_qp *qp)
 176 {
 177         struct bnxt_qplib_q *rq = &qp->rq;
 178         struct bnxt_qplib_q *sq = &qp->sq;
 179
 180         if (qp->rq_hdr_buf)
 181                 dma_free_coherent(&res->pdev->dev,
 182                                   rq->max_wqe * qp->rq_hdr_buf_size,
 183                                   qp->rq_hdr_buf, qp->rq_hdr_buf_map);
 184         if (qp->sq_hdr_buf)
 185                 dma_free_coherent(&res->pdev->dev,
 186                                   sq->max_wqe * qp->sq_hdr_buf_size,
 187                                   qp->sq_hdr_buf, qp->sq_hdr_buf_map);
 188         qp->rq_hdr_buf = NULL;
 189         qp->sq_hdr_buf = NULL;
 190         qp->rq_hdr_buf_map = 0;
 191         qp->sq_hdr_buf_map = 0;
 192         qp->sq_hdr_buf_size = 0;
 193         qp->rq_hdr_buf_size = 0;
 194 }
 195
 196 static int bnxt_qplib_alloc_qp_hdr_buf(struct bnxt_qplib_res *res,
 197                                        struct bnxt_qplib_qp *qp)
 198 {
 199         struct bnxt_qplib_q *rq = &qp->rq;
 200         struct bnxt_qplib_q *sq = &qp->sq;
 201         int rc = 0;
 202
 203         if (qp->sq_hdr_buf_size && sq->max_wqe) {
 204                 qp->sq_hdr_buf = dma_alloc_coherent(&res->pdev->dev,
 205                                         sq->max_wqe * qp->sq_hdr_buf_size,
 206                                         &qp->sq_hdr_buf_map, GFP_KERNEL);
 207                 if (!qp->sq_hdr_buf) {
 208                         rc = -ENOMEM;
 209                         dev_err(&res->pdev->dev,
 210                                 "Failed to create sq_hdr_buf\n");
 211                         goto fail;
 212                 }
 213         }
 214
 215         if (qp->rq_hdr_buf_size && rq->max_wqe) {
 216                 qp->rq_hdr_buf = dma_alloc_coherent(&res->pdev->dev,
 217                                                     rq->max_wqe *
 218                                                     qp->rq_hdr_buf_size,
 219                                                     &qp->rq_hdr_buf_map,
 220                                                     GFP_KERNEL);
 221                 if (!qp->rq_hdr_buf) {
 222                         rc = -ENOMEM;
 223                         dev_err(&res->pdev->dev,
 224                                 "Failed to create rq_hdr_buf\n");
 225                         goto fail;
 226                 }
 227         }
 228         return 0;
 229
 230 fail:
 231         bnxt_qplib_free_qp_hdr_buf(res, qp);
 232         return rc;
 233 }
 234
 235 static void clean_nq(struct bnxt_qplib_nq *nq, struct bnxt_qplib_cq *cq)
 236 {
 237         struct bnxt_qplib_hwq *hwq = &nq->hwq;
 238         struct nq_base *nqe, **nq_ptr;
 239         int budget = nq->budget;
 240         uintptr_t q_handle;
 241         u16 type;
 242
 243         spin_lock_bh(&hwq->lock);
 244         /* Service the NQ until empty */
 245         while (budget--) {
 246                 nq_ptr = (struct nq_base **)hwq->pbl_ptr;
 247                 nqe = &nq_ptr[NQE_PG(hwq->cons)][NQE_IDX(hwq->cons)];
 248                 if (!NQE_CMP_VALID(nqe, nq->nq_db.dbinfo.flags))
 249                         break;
 250
 251                 /*
 252                  * The valid test of the entry must be done first before
 253                  * reading any further.
 254                  */
 255                 dma_rmb();
 256
 257                 type = le16_to_cpu(nqe->info10_type) & NQ_BASE_TYPE_MASK;
 258                 switch (type) {
 259                 case NQ_BASE_TYPE_CQ_NOTIFICATION:
 260                 {
 261                         struct nq_cn *nqcne = (struct nq_cn *)nqe;
 262
 263                         q_handle = le32_to_cpu(nqcne->cq_handle_low);
 264                         q_handle |= (u64)le32_to_cpu(nqcne->cq_handle_high)
 265                                                      << 32;
 266                         if ((unsigned long)cq == q_handle) {
 267                                 nqcne->cq_handle_low = 0;
 268                                 nqcne->cq_handle_high = 0;
 269                                 cq->cnq_events++;
 270                         }
 271                         break;
 272                 }
 273                 default:
 274                         break;
 275                 }
 276                 bnxt_qplib_hwq_incr_cons(hwq->max_elements, &hwq->cons,
 277                                          1, &nq->nq_db.dbinfo.flags);
 278         }
 279         spin_unlock_bh(&hwq->lock);
 280 }
 281
 282 /* Wait for receiving all NQEs for this CQ and clean the NQEs associated with
 283  * this CQ.
 284  */
 285 static void __wait_for_all_nqes(struct bnxt_qplib_cq *cq, u16 cnq_events)
 286 {
 287         u32 retry_cnt = 100;
 288
 289         while (retry_cnt--) {
 290                 if (cnq_events == cq->cnq_events)
 291                         return;
 292                 usleep_range(50, 100);
 293                 clean_nq(cq->nq, cq);
 294         }
 295 }
 296
 297 static void bnxt_qplib_service_nq(struct tasklet_struct *t)
 298 {
 299         struct bnxt_qplib_nq *nq = from_tasklet(nq, t, nq_tasklet);
 300         struct bnxt_qplib_hwq *hwq = &nq->hwq;
 301         struct bnxt_qplib_cq *cq;
 302         int budget = nq->budget;
 303         struct nq_base *nqe;
 304         uintptr_t q_handle;
 305         u32 hw_polled = 0;
 306         u16 type;
 307
 308         spin_lock_bh(&hwq->lock);
 309         /* Service the NQ until empty */
 310         while (budget--) {
 311                 nqe = bnxt_qplib_get_qe(hwq, hwq->cons, NULL);
 312                 if (!NQE_CMP_VALID(nqe, nq->nq_db.dbinfo.flags))
 313                         break;
 314
 315                 /*
 316                  * The valid test of the entry must be done first before
 317                  * reading any further.
 318                  */
 319                 dma_rmb();
 320
 321                 type = le16_to_cpu(nqe->info10_type) & NQ_BASE_TYPE_MASK;
 322                 switch (type) {
 323                 case NQ_BASE_TYPE_CQ_NOTIFICATION:
 324                 {
 325                         struct nq_cn *nqcne = (struct nq_cn *)nqe;
 326
 327                         q_handle = le32_to_cpu(nqcne->cq_handle_low);
 328                         q_handle |= (u64)le32_to_cpu(nqcne->cq_handle_high)
 329                                                      << 32;
 330                         cq = (struct bnxt_qplib_cq *)(unsigned long)q_handle;
 331                         if (!cq)
 332                                 break;
 333                         cq->toggle = (le16_to_cpu(nqe->info10_type) &
 334                                         NQ_CN_TOGGLE_MASK) >> NQ_CN_TOGGLE_SFT;
 335                         cq->dbinfo.toggle = cq->toggle;
 336                         bnxt_qplib_armen_db(&cq->dbinfo,
 337                                             DBC_DBC_TYPE_CQ_ARMENA);
 338                         spin_lock_bh(&cq->compl_lock);
 339                         atomic_set(&cq->arm_state, 0);
 340                         if (nq->cqn_handler(nq, (cq)))
 341                                 dev_warn(&nq->pdev->dev,
 342                                          "cqn - type 0x%x not handled\n", type);
 343                         cq->cnq_events++;
 344                         spin_unlock_bh(&cq->compl_lock);
 345                         break;
 346                 }
 347                 case NQ_BASE_TYPE_SRQ_EVENT:
 348                 {
 349                         struct bnxt_qplib_srq *srq;
 350                         struct nq_srq_event *nqsrqe =
 351                                                 (struct nq_srq_event *)nqe;
 352
 353                         q_handle = le32_to_cpu(nqsrqe->srq_handle_low);
 354                         q_handle |= (u64)le32_to_cpu(nqsrqe->srq_handle_high)
 355                                      << 32;
 356                         srq = (struct bnxt_qplib_srq *)q_handle;
 357                         bnxt_qplib_armen_db(&srq->dbinfo,
 358                                             DBC_DBC_TYPE_SRQ_ARMENA);
 359                         if (nq->srqn_handler(nq,
 360                                              (struct bnxt_qplib_srq *)q_handle,
 361                                              nqsrqe->event))
 362                                 dev_warn(&nq->pdev->dev,
 363                                          "SRQ event 0x%x not handled\n",
 364                                          nqsrqe->event);
 365                         break;
 366                 }
 367                 case NQ_BASE_TYPE_DBQ_EVENT:
 368                         break;
 369                 default:
 370                         dev_warn(&nq->pdev->dev,
 371                                  "nqe with type = 0x%x not handled\n", type);
 372                         break;
 373                 }
 374                 hw_polled++;
 375                 bnxt_qplib_hwq_incr_cons(hwq->max_elements, &hwq->cons,
 376                                          1, &nq->nq_db.dbinfo.flags);
 377         }
 378         if (hw_polled)
 379                 bnxt_qplib_ring_nq_db(&nq->nq_db.dbinfo, nq->res->cctx, true);
 380         spin_unlock_bh(&hwq->lock);
 381 }
 382
 383 /* bnxt_re_synchronize_nq - self polling notification queue.
 384  * @nq      -     notification queue pointer
 385  *
 386  * This function will start polling entries of a given notification queue
 387  * for all pending  entries.
 388  * This function is useful to synchronize notification entries while resources
 389  * are going away.
 390  */
 391
 392 void bnxt_re_synchronize_nq(struct bnxt_qplib_nq *nq)
 393 {
 394         int budget = nq->budget;
 395
 396         nq->budget = nq->hwq.max_elements;
 397         bnxt_qplib_service_nq(&nq->nq_tasklet);
 398         nq->budget = budget;
 399 }
 400
 401 static irqreturn_t bnxt_qplib_nq_irq(int irq, void *dev_instance)
 402 {
 403         struct bnxt_qplib_nq *nq = dev_instance;
 404         struct bnxt_qplib_hwq *hwq = &nq->hwq;
 405         u32 sw_cons;
 406
 407         /* Prefetch the NQ element */
 408         sw_cons = HWQ_CMP(hwq->cons, hwq);
 409         prefetch(bnxt_qplib_get_qe(hwq, sw_cons, NULL));
 410
 411         /* Fan out to CPU affinitized kthreads? */
 412         tasklet_schedule(&nq->nq_tasklet);
 413
 414         return IRQ_HANDLED;
 415 }
 416
 417 void bnxt_qplib_nq_stop_irq(struct bnxt_qplib_nq *nq, bool kill)
 418 {
 419         if (!nq->requested)
 420                 return;
 421
 422         nq->requested = false;
 423         /* Mask h/w interrupt */
 424         bnxt_qplib_ring_nq_db(&nq->nq_db.dbinfo, nq->res->cctx, false);
 425         /* Sync with last running IRQ handler */
 426         synchronize_irq(nq->msix_vec);
 427         irq_set_affinity_hint(nq->msix_vec, NULL);
 428         free_irq(nq->msix_vec, nq);
 429         kfree(nq->name);
 430         nq->name = NULL;
 431
 432         if (kill)
 433                 tasklet_kill(&nq->nq_tasklet);
 434         tasklet_disable(&nq->nq_tasklet);
 435 }
 436
 437 void bnxt_qplib_disable_nq(struct bnxt_qplib_nq *nq)
 438 {
 439         if (nq->cqn_wq) {
 440                 destroy_workqueue(nq->cqn_wq);
 441                 nq->cqn_wq = NULL;
 442         }
 443
 444         /* Make sure the HW is stopped! */
 445         bnxt_qplib_nq_stop_irq(nq, true);
 446
 447         if (nq->nq_db.reg.bar_reg) {
 448                 iounmap(nq->nq_db.reg.bar_reg);
 449                 nq->nq_db.reg.bar_reg = NULL;
 450         }
 451
 452         nq->cqn_handler = NULL;
 453         nq->srqn_handler = NULL;
 454         nq->msix_vec = 0;
 455 }
 456
 457 int bnxt_qplib_nq_start_irq(struct bnxt_qplib_nq *nq, int nq_indx,
 458                             int msix_vector, bool need_init)
 459 {
 460         struct bnxt_qplib_res *res = nq->res;
 461         int rc;
 462
 463         if (nq->requested)
 464                 return -EFAULT;
 465
 466         nq->msix_vec = msix_vector;
 467         if (need_init)
 468                 tasklet_setup(&nq->nq_tasklet, bnxt_qplib_service_nq);
 469         else
 470                 tasklet_enable(&nq->nq_tasklet);
 471
 472         nq->name = kasprintf(GFP_KERNEL, "bnxt_re-nq-%d@pci:%s",
 473                              nq_indx, pci_name(res->pdev));
 474         if (!nq->name)
 475                 return -ENOMEM;
 476         rc = request_irq(nq->msix_vec, bnxt_qplib_nq_irq, 0, nq->name, nq);
 477         if (rc) {
 478                 kfree(nq->name);
 479                 nq->name = NULL;
 480                 tasklet_disable(&nq->nq_tasklet);
 481                 return rc;
 482         }
 483
 484         cpumask_clear(&nq->mask);
 485         cpumask_set_cpu(nq_indx, &nq->mask);
 486         rc = irq_set_affinity_hint(nq->msix_vec, &nq->mask);
 487         if (rc) {
 488                 dev_warn(&nq->pdev->dev,
 489                          "set affinity failed; vector: %d nq_idx: %d\n",
 490                          nq->msix_vec, nq_indx);
 491         }
 492         nq->requested = true;
 493         bnxt_qplib_ring_nq_db(&nq->nq_db.dbinfo, res->cctx, true);
 494
 495         return rc;
 496 }
 497
 498 static int bnxt_qplib_map_nq_db(struct bnxt_qplib_nq *nq,  u32 reg_offt)
 499 {
 500         resource_size_t reg_base;
 501         struct bnxt_qplib_nq_db *nq_db;
 502         struct pci_dev *pdev;
 503
 504         pdev = nq->pdev;
 505         nq_db = &nq->nq_db;
 506
 507         nq_db->dbinfo.flags = 0;
 508         nq_db->reg.bar_id = NQ_CONS_PCI_BAR_REGION;
 509         nq_db->reg.bar_base = pci_resource_start(pdev, nq_db->reg.bar_id);
 510         if (!nq_db->reg.bar_base) {
 511                 dev_err(&pdev->dev, "QPLIB: NQ BAR region %d resc start is 0!",
 512                         nq_db->reg.bar_id);
 513                 return -ENOMEM;
 514         }
 515
 516         reg_base = nq_db->reg.bar_base + reg_offt;
 517         /* Unconditionally map 8 bytes to support 57500 series */
 518         nq_db->reg.len = 8;
 519         nq_db->reg.bar_reg = ioremap(reg_base, nq_db->reg.len);
 520         if (!nq_db->reg.bar_reg) {
 521                 dev_err(&pdev->dev, "QPLIB: NQ BAR region %d mapping failed",
 522                         nq_db->reg.bar_id);
 523                 return -ENOMEM;
 524         }
 525
 526         nq_db->dbinfo.db = nq_db->reg.bar_reg;
 527         nq_db->dbinfo.hwq = &nq->hwq;
 528         nq_db->dbinfo.xid = nq->ring_id;
 529
 530         return 0;
 531 }
 532
 533 int bnxt_qplib_enable_nq(struct pci_dev *pdev, struct bnxt_qplib_nq *nq,
 534                          int nq_idx, int msix_vector, int bar_reg_offset,
 535                          cqn_handler_t cqn_handler,
 536                          srqn_handler_t srqn_handler)
 537 {
 538         int rc;
 539
 540         nq->pdev = pdev;
 541         nq->cqn_handler = cqn_handler;
 542         nq->srqn_handler = srqn_handler;
 543
 544         /* Have a task to schedule CQ notifiers in post send case */
 545         nq->cqn_wq  = create_singlethread_workqueue("bnxt_qplib_nq");
 546         if (!nq->cqn_wq)
 547                 return -ENOMEM;
 548
 549         rc = bnxt_qplib_map_nq_db(nq, bar_reg_offset);
 550         if (rc)
 551                 goto fail;
 552
 553         rc = bnxt_qplib_nq_start_irq(nq, nq_idx, msix_vector, true);
 554         if (rc) {
 555                 dev_err(&nq->pdev->dev,
 556                         "Failed to request irq for nq-idx %d\n", nq_idx);
 557                 goto fail;
 558         }
 559
 560         return 0;
 561 fail:
 562         bnxt_qplib_disable_nq(nq);
 563         return rc;
 564 }
 565
 566 void bnxt_qplib_free_nq(struct bnxt_qplib_nq *nq)
 567 {
 568         if (nq->hwq.max_elements) {
 569                 bnxt_qplib_free_hwq(nq->res, &nq->hwq);
 570                 nq->hwq.max_elements = 0;
 571         }
 572 }
 573
 574 int bnxt_qplib_alloc_nq(struct bnxt_qplib_res *res, struct bnxt_qplib_nq *nq)
 575 {
 576         struct bnxt_qplib_hwq_attr hwq_attr = {};
 577         struct bnxt_qplib_sg_info sginfo = {};
 578
 579         nq->pdev = res->pdev;
 580         nq->res = res;
 581         if (!nq->hwq.max_elements ||
 582             nq->hwq.max_elements > BNXT_QPLIB_NQE_MAX_CNT)
 583                 nq->hwq.max_elements = BNXT_QPLIB_NQE_MAX_CNT;
 584
 585         sginfo.pgsize = PAGE_SIZE;
 586         sginfo.pgshft = PAGE_SHIFT;
 587         hwq_attr.res = res;
 588         hwq_attr.sginfo = &sginfo;
 589         hwq_attr.depth = nq->hwq.max_elements;
 590         hwq_attr.stride = sizeof(struct nq_base);
 591         hwq_attr.type = bnxt_qplib_get_hwq_type(nq->res);
 592         if (bnxt_qplib_alloc_init_hwq(&nq->hwq, &hwq_attr)) {
 593                 dev_err(&nq->pdev->dev, "FP NQ allocation failed");
 594                 return -ENOMEM;
 595         }
 596         nq->budget = 8;
 597         return 0;
 598 }
 599
 600 /* SRQ */
 601 void bnxt_qplib_destroy_srq(struct bnxt_qplib_res *res,
 602                            struct bnxt_qplib_srq *srq)
 603 {
 604         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 605         struct creq_destroy_srq_resp resp = {};
 606         struct bnxt_qplib_cmdqmsg msg = {};
 607         struct cmdq_destroy_srq req = {};
 608         int rc;
 609
 610         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
 611                                  CMDQ_BASE_OPCODE_DESTROY_SRQ,
 612                                  sizeof(req));
 613
 614         /* Configure the request */
 615         req.srq_cid = cpu_to_le32(srq->id);
 616
 617         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req), sizeof(resp), 0);
 618         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
 619         kfree(srq->swq);
 620         if (rc)
 621                 return;
 622         bnxt_qplib_free_hwq(res, &srq->hwq);
 623 }
 624
 625 int bnxt_qplib_create_srq(struct bnxt_qplib_res *res,
 626                           struct bnxt_qplib_srq *srq)
 627 {
 628         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 629         struct bnxt_qplib_hwq_attr hwq_attr = {};
 630         struct creq_create_srq_resp resp = {};
 631         struct bnxt_qplib_cmdqmsg msg = {};
 632         struct cmdq_create_srq req = {};
 633         struct bnxt_qplib_pbl *pbl;
 634         u16 pg_sz_lvl;
 635         int rc, idx;
 636
 637         hwq_attr.res = res;
 638         hwq_attr.sginfo = &srq->sg_info;
 639         hwq_attr.depth = srq->max_wqe;
 640         hwq_attr.stride = srq->wqe_size;
 641         hwq_attr.type = HWQ_TYPE_QUEUE;
 642         rc = bnxt_qplib_alloc_init_hwq(&srq->hwq, &hwq_attr);
 643         if (rc)
 644                 return rc;
 645
 646         srq->swq = kcalloc(srq->hwq.max_elements, sizeof(*srq->swq),
 647                            GFP_KERNEL);
 648         if (!srq->swq) {
 649                 rc = -ENOMEM;
 650                 goto fail;
 651         }
 652         srq->dbinfo.flags = 0;
 653         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
 654                                  CMDQ_BASE_OPCODE_CREATE_SRQ,
 655                                  sizeof(req));
 656
 657         /* Configure the request */
 658         req.dpi = cpu_to_le32(srq->dpi->dpi);
 659         req.srq_handle = cpu_to_le64((uintptr_t)srq);
 660
 661         req.srq_size = cpu_to_le16((u16)srq->hwq.max_elements);
 662         pbl = &srq->hwq.pbl[PBL_LVL_0];
 663         pg_sz_lvl = ((u16)bnxt_qplib_base_pg_size(&srq->hwq) <<
 664                      CMDQ_CREATE_SRQ_PG_SIZE_SFT);
 665         pg_sz_lvl |= (srq->hwq.level & CMDQ_CREATE_SRQ_LVL_MASK) <<
 666                       CMDQ_CREATE_SRQ_LVL_SFT;
 667         req.pg_size_lvl = cpu_to_le16(pg_sz_lvl);
 668         req.pbl = cpu_to_le64(pbl->pg_map_arr[0]);
 669         req.pd_id = cpu_to_le32(srq->pd->id);
 670         req.eventq_id = cpu_to_le16(srq->eventq_hw_ring_id);
 671
 672         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req), sizeof(resp), 0);
 673         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
 674         if (rc)
 675                 goto fail;
 676
 677         spin_lock_init(&srq->lock);
 678         srq->start_idx = 0;
 679         srq->last_idx = srq->hwq.max_elements - 1;
 680         for (idx = 0; idx < srq->hwq.max_elements; idx++)
 681                 srq->swq[idx].next_idx = idx + 1;
 682         srq->swq[srq->last_idx].next_idx = -1;
 683
 684         srq->id = le32_to_cpu(resp.xid);
 685         srq->dbinfo.hwq = &srq->hwq;
 686         srq->dbinfo.xid = srq->id;
 687         srq->dbinfo.db = srq->dpi->dbr;
 688         srq->dbinfo.max_slot = 1;
 689         srq->dbinfo.priv_db = res->dpi_tbl.priv_db;
 690         if (srq->threshold)
 691                 bnxt_qplib_armen_db(&srq->dbinfo, DBC_DBC_TYPE_SRQ_ARMENA);
 692         srq->arm_req = false;
 693
 694         return 0;
 695 fail:
 696         bnxt_qplib_free_hwq(res, &srq->hwq);
 697         kfree(srq->swq);
 698
 699         return rc;
 700 }
 701
 702 int bnxt_qplib_modify_srq(struct bnxt_qplib_res *res,
 703                           struct bnxt_qplib_srq *srq)
 704 {
 705         struct bnxt_qplib_hwq *srq_hwq = &srq->hwq;
 706         u32 count;
 707
 708         count = __bnxt_qplib_get_avail(srq_hwq);
 709         if (count > srq->threshold) {
 710                 srq->arm_req = false;
 711                 bnxt_qplib_srq_arm_db(&srq->dbinfo, srq->threshold);
 712         } else {
 713                 /* Deferred arming */
 714                 srq->arm_req = true;
 715         }
 716
 717         return 0;
 718 }
 719
 720 int bnxt_qplib_query_srq(struct bnxt_qplib_res *res,
 721                          struct bnxt_qplib_srq *srq)
 722 {
 723         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 724         struct creq_query_srq_resp resp = {};
 725         struct bnxt_qplib_cmdqmsg msg = {};
 726         struct bnxt_qplib_rcfw_sbuf sbuf;
 727         struct creq_query_srq_resp_sb *sb;
 728         struct cmdq_query_srq req = {};
 729         int rc;
 730
 731         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
 732                                  CMDQ_BASE_OPCODE_QUERY_SRQ,
 733                                  sizeof(req));
 734
 735         /* Configure the request */
 736         sbuf.size = ALIGN(sizeof(*sb), BNXT_QPLIB_CMDQE_UNITS);
 737         sbuf.sb = dma_alloc_coherent(&rcfw->pdev->dev, sbuf.size,
 738                                      &sbuf.dma_addr, GFP_KERNEL);
 739         if (!sbuf.sb)
 740                 return -ENOMEM;
 741         req.resp_size = sbuf.size / BNXT_QPLIB_CMDQE_UNITS;
 742         req.srq_cid = cpu_to_le32(srq->id);
 743         sb = sbuf.sb;
 744         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, &sbuf, sizeof(req),
 745                                 sizeof(resp), 0);
 746         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
 747         srq->threshold = le16_to_cpu(sb->srq_limit);
 748         dma_free_coherent(&rcfw->pdev->dev, sbuf.size,
 749                           sbuf.sb, sbuf.dma_addr);
 750
 751         return rc;
 752 }
 753
 754 int bnxt_qplib_post_srq_recv(struct bnxt_qplib_srq *srq,
 755                              struct bnxt_qplib_swqe *wqe)
 756 {
 757         struct bnxt_qplib_hwq *srq_hwq = &srq->hwq;
 758         struct rq_wqe *srqe;
 759         struct sq_sge *hw_sge;
 760         u32 count = 0;
 761         int i, next;
 762
 763         spin_lock(&srq_hwq->lock);
 764         if (srq->start_idx == srq->last_idx) {
 765                 dev_err(&srq_hwq->pdev->dev,
 766                         "FP: SRQ (0x%x) is full!\n", srq->id);
 767                 spin_unlock(&srq_hwq->lock);
 768                 return -EINVAL;
 769         }
 770         next = srq->start_idx;
 771         srq->start_idx = srq->swq[next].next_idx;
 772         spin_unlock(&srq_hwq->lock);
 773
 774         srqe = bnxt_qplib_get_qe(srq_hwq, srq_hwq->prod, NULL);
 775         memset(srqe, 0, srq->wqe_size);
 776         /* Calculate wqe_size16 and data_len */
 777         for (i = 0, hw_sge = (struct sq_sge *)srqe->data;
 778              i < wqe->num_sge; i++, hw_sge++) {
 779                 hw_sge->va_or_pa = cpu_to_le64(wqe->sg_list[i].addr);
 780                 hw_sge->l_key = cpu_to_le32(wqe->sg_list[i].lkey);
 781                 hw_sge->size = cpu_to_le32(wqe->sg_list[i].size);
 782         }
 783         srqe->wqe_type = wqe->type;
 784         srqe->flags = wqe->flags;
 785         srqe->wqe_size = wqe->num_sge +
 786                         ((offsetof(typeof(*srqe), data) + 15) >> 4);
 787         srqe->wr_id[0] = cpu_to_le32((u32)next);
 788         srq->swq[next].wr_id = wqe->wr_id;
 789
 790         bnxt_qplib_hwq_incr_prod(&srq->dbinfo, srq_hwq, srq->dbinfo.max_slot);
 791
 792         spin_lock(&srq_hwq->lock);
 793         count = __bnxt_qplib_get_avail(srq_hwq);
 794         spin_unlock(&srq_hwq->lock);
 795         /* Ring DB */
 796         bnxt_qplib_ring_prod_db(&srq->dbinfo, DBC_DBC_TYPE_SRQ);
 797         if (srq->arm_req == true && count > srq->threshold) {
 798                 srq->arm_req = false;
 799                 bnxt_qplib_srq_arm_db(&srq->dbinfo, srq->threshold);
 800         }
 801
 802         return 0;
 803 }
 804
 805 /* QP */
 806
 807 static int bnxt_qplib_alloc_init_swq(struct bnxt_qplib_q *que)
 808 {
 809         int indx;
 810
 811         que->swq = kcalloc(que->max_wqe, sizeof(*que->swq), GFP_KERNEL);
 812         if (!que->swq)
 813                 return -ENOMEM;
 814
 815         que->swq_start = 0;
 816         que->swq_last = que->max_wqe - 1;
 817         for (indx = 0; indx < que->max_wqe; indx++)
 818                 que->swq[indx].next_idx = indx + 1;
 819         que->swq[que->swq_last].next_idx = 0; /* Make it circular */
 820         que->swq_last = 0;
 821
 822         return 0;
 823 }
 824
 825 int bnxt_qplib_create_qp1(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
 826 {
 827         struct bnxt_qplib_hwq_attr hwq_attr = {};
 828         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 829         struct creq_create_qp1_resp resp = {};
 830         struct bnxt_qplib_cmdqmsg msg = {};
 831         struct bnxt_qplib_q *sq = &qp->sq;
 832         struct bnxt_qplib_q *rq = &qp->rq;
 833         struct cmdq_create_qp1 req = {};
 834         struct bnxt_qplib_pbl *pbl;
 835         u32 qp_flags = 0;
 836         u8 pg_sz_lvl;
 837         u32 tbl_indx;
 838         int rc;
 839
 840         sq->dbinfo.flags = 0;
 841         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
 842                                  CMDQ_BASE_OPCODE_CREATE_QP1,
 843                                  sizeof(req));
 844         /* General */
 845         req.type = qp->type;
 846         req.dpi = cpu_to_le32(qp->dpi->dpi);
 847         req.qp_handle = cpu_to_le64(qp->qp_handle);
 848
 849         /* SQ */
 850         hwq_attr.res = res;
 851         hwq_attr.sginfo = &sq->sg_info;
 852         hwq_attr.stride = sizeof(struct sq_sge);
 853         hwq_attr.depth = bnxt_qplib_get_depth(sq);
 854         hwq_attr.type = HWQ_TYPE_QUEUE;
 855         rc = bnxt_qplib_alloc_init_hwq(&sq->hwq, &hwq_attr);
 856         if (rc)
 857                 return rc;
 858
 859         rc = bnxt_qplib_alloc_init_swq(sq);
 860         if (rc)
 861                 goto fail_sq;
 862
 863         req.sq_size = cpu_to_le32(bnxt_qplib_set_sq_size(sq, qp->wqe_mode));
 864         pbl = &sq->hwq.pbl[PBL_LVL_0];
 865         req.sq_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
 866         pg_sz_lvl = (bnxt_qplib_base_pg_size(&sq->hwq) <<
 867                      CMDQ_CREATE_QP1_SQ_PG_SIZE_SFT);
 868         pg_sz_lvl |= (sq->hwq.level & CMDQ_CREATE_QP1_SQ_LVL_MASK);
 869         req.sq_pg_size_sq_lvl = pg_sz_lvl;
 870         req.sq_fwo_sq_sge =
 871                 cpu_to_le16((sq->max_sge & CMDQ_CREATE_QP1_SQ_SGE_MASK) <<
 872                              CMDQ_CREATE_QP1_SQ_SGE_SFT);
 873         req.scq_cid = cpu_to_le32(qp->scq->id);
 874
 875         /* RQ */
 876         if (rq->max_wqe) {
 877                 rq->dbinfo.flags = 0;
 878                 hwq_attr.res = res;
 879                 hwq_attr.sginfo = &rq->sg_info;
 880                 hwq_attr.stride = sizeof(struct sq_sge);
 881                 hwq_attr.depth = bnxt_qplib_get_depth(rq);
 882                 hwq_attr.type = HWQ_TYPE_QUEUE;
 883                 rc = bnxt_qplib_alloc_init_hwq(&rq->hwq, &hwq_attr);
 884                 if (rc)
 885                         goto sq_swq;
 886                 rc = bnxt_qplib_alloc_init_swq(rq);
 887                 if (rc)
 888                         goto fail_rq;
 889                 req.rq_size = cpu_to_le32(rq->max_wqe);
 890                 pbl = &rq->hwq.pbl[PBL_LVL_0];
 891                 req.rq_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
 892                 pg_sz_lvl = (bnxt_qplib_base_pg_size(&rq->hwq) <<
 893                              CMDQ_CREATE_QP1_RQ_PG_SIZE_SFT);
 894                 pg_sz_lvl |= (rq->hwq.level & CMDQ_CREATE_QP1_RQ_LVL_MASK);
 895                 req.rq_pg_size_rq_lvl = pg_sz_lvl;
 896                 req.rq_fwo_rq_sge =
 897                         cpu_to_le16((rq->max_sge &
 898                                      CMDQ_CREATE_QP1_RQ_SGE_MASK) <<
 899                                     CMDQ_CREATE_QP1_RQ_SGE_SFT);
 900         }
 901         req.rcq_cid = cpu_to_le32(qp->rcq->id);
 902         /* Header buffer - allow hdr_buf pass in */
 903         rc = bnxt_qplib_alloc_qp_hdr_buf(res, qp);
 904         if (rc) {
 905                 rc = -ENOMEM;
 906                 goto rq_rwq;
 907         }
 908         qp_flags |= CMDQ_CREATE_QP1_QP_FLAGS_RESERVED_LKEY_ENABLE;
 909         req.qp_flags = cpu_to_le32(qp_flags);
 910         req.pd_id = cpu_to_le32(qp->pd->id);
 911
 912         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req), sizeof(resp), 0);
 913         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
 914         if (rc)
 915                 goto fail;
 916
 917         qp->id = le32_to_cpu(resp.xid);
 918         qp->cur_qp_state = CMDQ_MODIFY_QP_NEW_STATE_RESET;
 919         qp->cctx = res->cctx;
 920         sq->dbinfo.hwq = &sq->hwq;
 921         sq->dbinfo.xid = qp->id;
 922         sq->dbinfo.db = qp->dpi->dbr;
 923         sq->dbinfo.max_slot = bnxt_qplib_set_sq_max_slot(qp->wqe_mode);
 924         if (rq->max_wqe) {
 925                 rq->dbinfo.hwq = &rq->hwq;
 926                 rq->dbinfo.xid = qp->id;
 927                 rq->dbinfo.db = qp->dpi->dbr;
 928                 rq->dbinfo.max_slot = bnxt_qplib_set_rq_max_slot(rq->wqe_size);
 929         }
 930         tbl_indx = map_qp_id_to_tbl_indx(qp->id, rcfw);
 931         rcfw->qp_tbl[tbl_indx].qp_id = qp->id;
 932         rcfw->qp_tbl[tbl_indx].qp_handle = (void *)qp;
 933
 934         return 0;
 935
 936 fail:
 937         bnxt_qplib_free_qp_hdr_buf(res, qp);
 938 rq_rwq:
 939         kfree(rq->swq);
 940 fail_rq:
 941         bnxt_qplib_free_hwq(res, &rq->hwq);
 942 sq_swq:
 943         kfree(sq->swq);
 944 fail_sq:
 945         bnxt_qplib_free_hwq(res, &sq->hwq);
 946         return rc;
 947 }
 948
 949 static void bnxt_qplib_init_psn_ptr(struct bnxt_qplib_qp *qp, int size)
 950 {
 951         struct bnxt_qplib_hwq *hwq;
 952         struct bnxt_qplib_q *sq;
 953         u64 fpsne, psn_pg;
 954         u16 indx_pad = 0;
 955
 956         sq = &qp->sq;
 957         hwq = &sq->hwq;
 958         /* First psn entry */
 959         fpsne = (u64)bnxt_qplib_get_qe(hwq, hwq->depth, &psn_pg);
 960         if (!IS_ALIGNED(fpsne, PAGE_SIZE))
 961                 indx_pad = (fpsne & ~PAGE_MASK) / size;
 962         hwq->pad_pgofft = indx_pad;
 963         hwq->pad_pg = (u64 *)psn_pg;
 964         hwq->pad_stride = size;
 965 }
 966
 967 int bnxt_qplib_create_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
 968 {
 969         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 970         struct bnxt_qplib_hwq_attr hwq_attr = {};
 971         struct bnxt_qplib_sg_info sginfo = {};
 972         struct creq_create_qp_resp resp = {};
 973         struct bnxt_qplib_cmdqmsg msg = {};
 974         struct bnxt_qplib_q *sq = &qp->sq;
 975         struct bnxt_qplib_q *rq = &qp->rq;
 976         struct cmdq_create_qp req = {};
 977         int rc, req_size, psn_sz = 0;
 978         struct bnxt_qplib_hwq *xrrq;
 979         struct bnxt_qplib_pbl *pbl;
 980         u32 qp_flags = 0;
 981         u8 pg_sz_lvl;
 982         u32 tbl_indx;
 983         u16 nsge;
 984
 985         if (res->dattr)
 986                 qp->dev_cap_flags = res->dattr->dev_cap_flags;
 987
 988         sq->dbinfo.flags = 0;
 989         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
 990                                  CMDQ_BASE_OPCODE_CREATE_QP,
 991                                  sizeof(req));
 992
 993         /* General */
 994         req.type = qp->type;
 995         req.dpi = cpu_to_le32(qp->dpi->dpi);
 996         req.qp_handle = cpu_to_le64(qp->qp_handle);
 997
 998         /* SQ */
 999         if (qp->type == CMDQ_CREATE_QP_TYPE_RC) {
1000                 psn_sz = bnxt_qplib_is_chip_gen_p5_p7(res->cctx) ?
1001                          sizeof(struct sq_psn_search_ext) :
1002                          sizeof(struct sq_psn_search);
1003
1004                 if (BNXT_RE_HW_RETX(qp->dev_cap_flags)) {
1005                         psn_sz = sizeof(struct sq_msn_search);
1006                         qp->msn = 0;
1007                 }
1008         }
1009
1010         hwq_attr.res = res;
1011         hwq_attr.sginfo = &sq->sg_info;
1012         hwq_attr.stride = sizeof(struct sq_sge);
1013         hwq_attr.depth = bnxt_qplib_get_depth(sq);
1014         hwq_attr.aux_stride = psn_sz;
1015         hwq_attr.aux_depth = bnxt_qplib_set_sq_size(sq, qp->wqe_mode);
1016         /* Update msn tbl size */
1017         if (BNXT_RE_HW_RETX(qp->dev_cap_flags) && psn_sz) {
1018                 hwq_attr.aux_depth = roundup_pow_of_two(bnxt_qplib_set_sq_size(sq, qp->wqe_mode));
1019                 qp->msn_tbl_sz = hwq_attr.aux_depth;
1020                 qp->msn = 0;
1021         }
1022
1023         hwq_attr.type = HWQ_TYPE_QUEUE;
1024         rc = bnxt_qplib_alloc_init_hwq(&sq->hwq, &hwq_attr);
1025         if (rc)
1026                 return rc;
1027
1028         rc = bnxt_qplib_alloc_init_swq(sq);
1029         if (rc)
1030                 goto fail_sq;
1031
1032         if (psn_sz)
1033                 bnxt_qplib_init_psn_ptr(qp, psn_sz);
1034
1035         req.sq_size = cpu_to_le32(bnxt_qplib_set_sq_size(sq, qp->wqe_mode));
1036         pbl = &sq->hwq.pbl[PBL_LVL_0];
1037         req.sq_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
1038         pg_sz_lvl = (bnxt_qplib_base_pg_size(&sq->hwq) <<
1039                      CMDQ_CREATE_QP_SQ_PG_SIZE_SFT);
1040         pg_sz_lvl |= (sq->hwq.level & CMDQ_CREATE_QP_SQ_LVL_MASK);
1041         req.sq_pg_size_sq_lvl = pg_sz_lvl;
1042         req.sq_fwo_sq_sge =
1043                 cpu_to_le16(((sq->max_sge & CMDQ_CREATE_QP_SQ_SGE_MASK) <<
1044                              CMDQ_CREATE_QP_SQ_SGE_SFT) | 0);
1045         req.scq_cid = cpu_to_le32(qp->scq->id);
1046
1047         /* RQ */
1048         if (!qp->srq) {
1049                 rq->dbinfo.flags = 0;
1050                 hwq_attr.res = res;
1051                 hwq_attr.sginfo = &rq->sg_info;
1052                 hwq_attr.stride = sizeof(struct sq_sge);
1053                 hwq_attr.depth = bnxt_qplib_get_depth(rq);
1054                 hwq_attr.aux_stride = 0;
1055                 hwq_attr.aux_depth = 0;
1056                 hwq_attr.type = HWQ_TYPE_QUEUE;
1057                 rc = bnxt_qplib_alloc_init_hwq(&rq->hwq, &hwq_attr);
1058                 if (rc)
1059                         goto sq_swq;
1060                 rc = bnxt_qplib_alloc_init_swq(rq);
1061                 if (rc)
1062                         goto fail_rq;
1063
1064                 req.rq_size = cpu_to_le32(rq->max_wqe);
1065                 pbl = &rq->hwq.pbl[PBL_LVL_0];
1066                 req.rq_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
1067                 pg_sz_lvl = (bnxt_qplib_base_pg_size(&rq->hwq) <<
1068                              CMDQ_CREATE_QP_RQ_PG_SIZE_SFT);
1069                 pg_sz_lvl |= (rq->hwq.level & CMDQ_CREATE_QP_RQ_LVL_MASK);
1070                 req.rq_pg_size_rq_lvl = pg_sz_lvl;
1071                 nsge = (qp->wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC) ?
1072                         6 : rq->max_sge;
1073                 req.rq_fwo_rq_sge =
1074                         cpu_to_le16(((nsge &
1075                                       CMDQ_CREATE_QP_RQ_SGE_MASK) <<
1076                                      CMDQ_CREATE_QP_RQ_SGE_SFT) | 0);
1077         } else {
1078                 /* SRQ */
1079                 qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_SRQ_USED;
1080                 req.srq_cid = cpu_to_le32(qp->srq->id);
1081         }
1082         req.rcq_cid = cpu_to_le32(qp->rcq->id);
1083
1084         qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_RESERVED_LKEY_ENABLE;
1085         qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_FR_PMR_ENABLED;
1086         if (qp->sig_type)
1087                 qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_FORCE_COMPLETION;
1088         if (qp->wqe_mode == BNXT_QPLIB_WQE_MODE_VARIABLE)
1089                 qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_VARIABLE_SIZED_WQE_ENABLED;
1090         if (_is_ext_stats_supported(res->dattr->dev_cap_flags) && !res->is_vf)
1091                 qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_EXT_STATS_ENABLED;
1092
1093         req.qp_flags = cpu_to_le32(qp_flags);
1094
1095         /* ORRQ and IRRQ */
1096         if (psn_sz) {
1097                 xrrq = &qp->orrq;
1098                 xrrq->max_elements =
1099                         ORD_LIMIT_TO_ORRQ_SLOTS(qp->max_rd_atomic);
1100                 req_size = xrrq->max_elements *
1101                            BNXT_QPLIB_MAX_ORRQE_ENTRY_SIZE + PAGE_SIZE - 1;
1102                 req_size &= ~(PAGE_SIZE - 1);
1103                 sginfo.pgsize = req_size;
1104                 sginfo.pgshft = PAGE_SHIFT;
1105
1106                 hwq_attr.res = res;
1107                 hwq_attr.sginfo = &sginfo;
1108                 hwq_attr.depth = xrrq->max_elements;
1109                 hwq_attr.stride = BNXT_QPLIB_MAX_ORRQE_ENTRY_SIZE;
1110                 hwq_attr.aux_stride = 0;
1111                 hwq_attr.aux_depth = 0;
1112                 hwq_attr.type = HWQ_TYPE_CTX;
1113                 rc = bnxt_qplib_alloc_init_hwq(xrrq, &hwq_attr);
1114                 if (rc)
1115                         goto rq_swq;
1116                 pbl = &xrrq->pbl[PBL_LVL_0];
1117                 req.orrq_addr = cpu_to_le64(pbl->pg_map_arr[0]);
1118
1119                 xrrq = &qp->irrq;
1120                 xrrq->max_elements = IRD_LIMIT_TO_IRRQ_SLOTS(
1121                                                 qp->max_dest_rd_atomic);
1122                 req_size = xrrq->max_elements *
1123                            BNXT_QPLIB_MAX_IRRQE_ENTRY_SIZE + PAGE_SIZE - 1;
1124                 req_size &= ~(PAGE_SIZE - 1);
1125                 sginfo.pgsize = req_size;
1126                 hwq_attr.depth =  xrrq->max_elements;
1127                 hwq_attr.stride = BNXT_QPLIB_MAX_IRRQE_ENTRY_SIZE;
1128                 rc = bnxt_qplib_alloc_init_hwq(xrrq, &hwq_attr);
1129                 if (rc)
1130                         goto fail_orrq;
1131
1132                 pbl = &xrrq->pbl[PBL_LVL_0];
1133                 req.irrq_addr = cpu_to_le64(pbl->pg_map_arr[0]);
1134         }
1135         req.pd_id = cpu_to_le32(qp->pd->id);
1136
1137         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
1138                                 sizeof(resp), 0);
1139         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
1140         if (rc)
1141                 goto fail;
1142
1143         qp->id = le32_to_cpu(resp.xid);
1144         qp->cur_qp_state = CMDQ_MODIFY_QP_NEW_STATE_RESET;
1145         INIT_LIST_HEAD(&qp->sq_flush);
1146         INIT_LIST_HEAD(&qp->rq_flush);
1147         qp->cctx = res->cctx;
1148         sq->dbinfo.hwq = &sq->hwq;
1149         sq->dbinfo.xid = qp->id;
1150         sq->dbinfo.db = qp->dpi->dbr;
1151         sq->dbinfo.max_slot = bnxt_qplib_set_sq_max_slot(qp->wqe_mode);
1152         if (rq->max_wqe) {
1153                 rq->dbinfo.hwq = &rq->hwq;
1154                 rq->dbinfo.xid = qp->id;
1155                 rq->dbinfo.db = qp->dpi->dbr;
1156                 rq->dbinfo.max_slot = bnxt_qplib_set_rq_max_slot(rq->wqe_size);
1157         }
1158         tbl_indx = map_qp_id_to_tbl_indx(qp->id, rcfw);
1159         rcfw->qp_tbl[tbl_indx].qp_id = qp->id;
1160         rcfw->qp_tbl[tbl_indx].qp_handle = (void *)qp;
1161
1162         return 0;
1163 fail:
1164         bnxt_qplib_free_hwq(res, &qp->irrq);
1165 fail_orrq:
1166         bnxt_qplib_free_hwq(res, &qp->orrq);
1167 rq_swq:
1168         kfree(rq->swq);
1169 fail_rq:
1170         bnxt_qplib_free_hwq(res, &rq->hwq);
1171 sq_swq:
1172         kfree(sq->swq);
1173 fail_sq:
1174         bnxt_qplib_free_hwq(res, &sq->hwq);
1175         return rc;
1176 }
1177
1178 static void __modify_flags_from_init_state(struct bnxt_qplib_qp *qp)
1179 {
1180         switch (qp->state) {
1181         case CMDQ_MODIFY_QP_NEW_STATE_RTR:
1182                 /* INIT->RTR, configure the path_mtu to the default
1183                  * 2048 if not being requested
1184                  */
1185                 if (!(qp->modify_flags &
1186                     CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU)) {
1187                         qp->modify_flags |=
1188                                 CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU;
1189                         qp->path_mtu =
1190                                 CMDQ_MODIFY_QP_PATH_MTU_MTU_2048;
1191                 }
1192                 qp->modify_flags &=
1193                         ~CMDQ_MODIFY_QP_MODIFY_MASK_VLAN_ID;
1194                 /* Bono FW require the max_dest_rd_atomic to be >= 1 */
1195                 if (qp->max_dest_rd_atomic < 1)
1196                         qp->max_dest_rd_atomic = 1;
1197                 qp->modify_flags &= ~CMDQ_MODIFY_QP_MODIFY_MASK_SRC_MAC;
1198                 /* Bono FW 20.6.5 requires SGID_INDEX configuration */
1199                 if (!(qp->modify_flags &
1200                     CMDQ_MODIFY_QP_MODIFY_MASK_SGID_INDEX)) {
1201                         qp->modify_flags |=
1202                                 CMDQ_MODIFY_QP_MODIFY_MASK_SGID_INDEX;
1203                         qp->ah.sgid_index = 0;
1204                 }
1205                 break;
1206         default:
1207                 break;
1208         }
1209 }
1210
1211 static void __modify_flags_from_rtr_state(struct bnxt_qplib_qp *qp)
1212 {
1213         switch (qp->state) {
1214         case CMDQ_MODIFY_QP_NEW_STATE_RTS:
1215                 /* Bono FW requires the max_rd_atomic to be >= 1 */
1216                 if (qp->max_rd_atomic < 1)
1217                         qp->max_rd_atomic = 1;
1218                 /* Bono FW does not allow PKEY_INDEX,
1219                  * DGID, FLOW_LABEL, SGID_INDEX, HOP_LIMIT,
1220                  * TRAFFIC_CLASS, DEST_MAC, PATH_MTU, RQ_PSN,
1221                  * MIN_RNR_TIMER, MAX_DEST_RD_ATOMIC, DEST_QP_ID
1222                  * modification
1223                  */
1224                 qp->modify_flags &=
1225                         ~(CMDQ_MODIFY_QP_MODIFY_MASK_PKEY |
1226                           CMDQ_MODIFY_QP_MODIFY_MASK_DGID |
1227                           CMDQ_MODIFY_QP_MODIFY_MASK_FLOW_LABEL |
1228                           CMDQ_MODIFY_QP_MODIFY_MASK_SGID_INDEX |
1229                           CMDQ_MODIFY_QP_MODIFY_MASK_HOP_LIMIT |
1230                           CMDQ_MODIFY_QP_MODIFY_MASK_TRAFFIC_CLASS |
1231                           CMDQ_MODIFY_QP_MODIFY_MASK_DEST_MAC |
1232                           CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU |
1233                           CMDQ_MODIFY_QP_MODIFY_MASK_RQ_PSN |
1234                           CMDQ_MODIFY_QP_MODIFY_MASK_MIN_RNR_TIMER |
1235                           CMDQ_MODIFY_QP_MODIFY_MASK_MAX_DEST_RD_ATOMIC |
1236                           CMDQ_MODIFY_QP_MODIFY_MASK_DEST_QP_ID);
1237                 break;
1238         default:
1239                 break;
1240         }
1241 }
1242
1243 static void __filter_modify_flags(struct bnxt_qplib_qp *qp)
1244 {
1245         switch (qp->cur_qp_state) {
1246         case CMDQ_MODIFY_QP_NEW_STATE_RESET:
1247                 break;
1248         case CMDQ_MODIFY_QP_NEW_STATE_INIT:
1249                 __modify_flags_from_init_state(qp);
1250                 break;
1251         case CMDQ_MODIFY_QP_NEW_STATE_RTR:
1252                 __modify_flags_from_rtr_state(qp);
1253                 break;
1254         case CMDQ_MODIFY_QP_NEW_STATE_RTS:
1255                 break;
1256         case CMDQ_MODIFY_QP_NEW_STATE_SQD:
1257                 break;
1258         case CMDQ_MODIFY_QP_NEW_STATE_SQE:
1259                 break;
1260         case CMDQ_MODIFY_QP_NEW_STATE_ERR:
1261                 break;
1262         default:
1263                 break;
1264         }
1265 }
1266
1267 int bnxt_qplib_modify_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
1268 {
1269         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
1270         struct creq_modify_qp_resp resp = {};
1271         struct bnxt_qplib_cmdqmsg msg = {};
1272         struct cmdq_modify_qp req = {};
1273         u32 temp32[4];
1274         u32 bmask;
1275         int rc;
1276
1277         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
1278                                  CMDQ_BASE_OPCODE_MODIFY_QP,
1279                                  sizeof(req));
1280
1281         /* Filter out the qp_attr_mask based on the state->new transition */
1282         __filter_modify_flags(qp);
1283         bmask = qp->modify_flags;
1284         req.modify_mask = cpu_to_le32(qp->modify_flags);
1285         req.qp_cid = cpu_to_le32(qp->id);
1286         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_STATE) {
1287                 req.network_type_en_sqd_async_notify_new_state =
1288                                 (qp->state & CMDQ_MODIFY_QP_NEW_STATE_MASK) |
1289                                 (qp->en_sqd_async_notify ?
1290                                         CMDQ_MODIFY_QP_EN_SQD_ASYNC_NOTIFY : 0);
1291         }
1292         req.network_type_en_sqd_async_notify_new_state |= qp->nw_type;
1293
1294         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_ACCESS)
1295                 req.access = qp->access;
1296
1297         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_PKEY)
1298                 req.pkey = cpu_to_le16(IB_DEFAULT_PKEY_FULL);
1299
1300         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_QKEY)
1301                 req.qkey = cpu_to_le32(qp->qkey);
1302
1303         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_DGID) {
1304                 memcpy(temp32, qp->ah.dgid.data, sizeof(struct bnxt_qplib_gid));
1305                 req.dgid[0] = cpu_to_le32(temp32[0]);
1306                 req.dgid[1] = cpu_to_le32(temp32[1]);
1307                 req.dgid[2] = cpu_to_le32(temp32[2]);
1308                 req.dgid[3] = cpu_to_le32(temp32[3]);
1309         }
1310         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_FLOW_LABEL)
1311                 req.flow_label = cpu_to_le32(qp->ah.flow_label);
1312
1313         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_SGID_INDEX)
1314                 req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id
1315                                              [qp->ah.sgid_index]);
1316
1317         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_HOP_LIMIT)
1318                 req.hop_limit = qp->ah.hop_limit;
1319
1320         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_TRAFFIC_CLASS)
1321                 req.traffic_class = qp->ah.traffic_class;
1322
1323         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_DEST_MAC)
1324                 memcpy(req.dest_mac, qp->ah.dmac, 6);
1325
1326         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU)
1327                 req.path_mtu_pingpong_push_enable |= qp->path_mtu;
1328
1329         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_TIMEOUT)
1330                 req.timeout = qp->timeout;
1331
1332         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_RETRY_CNT)
1333                 req.retry_cnt = qp->retry_cnt;
1334
1335         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_RNR_RETRY)
1336                 req.rnr_retry = qp->rnr_retry;
1337
1338         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_MIN_RNR_TIMER)
1339                 req.min_rnr_timer = qp->min_rnr_timer;
1340
1341         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_RQ_PSN)
1342                 req.rq_psn = cpu_to_le32(qp->rq.psn);
1343
1344         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_SQ_PSN)
1345                 req.sq_psn = cpu_to_le32(qp->sq.psn);
1346
1347         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_MAX_RD_ATOMIC)
1348                 req.max_rd_atomic =
1349                         ORD_LIMIT_TO_ORRQ_SLOTS(qp->max_rd_atomic);
1350
1351         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_MAX_DEST_RD_ATOMIC)
1352                 req.max_dest_rd_atomic =
1353                         IRD_LIMIT_TO_IRRQ_SLOTS(qp->max_dest_rd_atomic);
1354
1355         req.sq_size = cpu_to_le32(qp->sq.hwq.max_elements);
1356         req.rq_size = cpu_to_le32(qp->rq.hwq.max_elements);
1357         req.sq_sge = cpu_to_le16(qp->sq.max_sge);
1358         req.rq_sge = cpu_to_le16(qp->rq.max_sge);
1359         req.max_inline_data = cpu_to_le32(qp->max_inline_data);
1360         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_DEST_QP_ID)
1361                 req.dest_qp_id = cpu_to_le32(qp->dest_qpn);
1362
1363         req.vlan_pcp_vlan_dei_vlan_id = cpu_to_le16(qp->vlan_id);
1364
1365         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),  sizeof(resp), 0);
1366         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
1367         if (rc)
1368                 return rc;
1369         qp->cur_qp_state = qp->state;
1370         return 0;
1371 }
1372
1373 int bnxt_qplib_query_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
1374 {
1375         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
1376         struct creq_query_qp_resp resp = {};
1377         struct bnxt_qplib_cmdqmsg msg = {};
1378         struct bnxt_qplib_rcfw_sbuf sbuf;
1379         struct creq_query_qp_resp_sb *sb;
1380         struct cmdq_query_qp req = {};
1381         u32 temp32[4];
1382         int i, rc;
1383
1384         sbuf.size = ALIGN(sizeof(*sb), BNXT_QPLIB_CMDQE_UNITS);
1385         sbuf.sb = dma_alloc_coherent(&rcfw->pdev->dev, sbuf.size,
1386                                      &sbuf.dma_addr, GFP_KERNEL);
1387         if (!sbuf.sb)
1388                 return -ENOMEM;
1389         sb = sbuf.sb;
1390
1391         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
1392                                  CMDQ_BASE_OPCODE_QUERY_QP,
1393                                  sizeof(req));
1394
1395         req.qp_cid = cpu_to_le32(qp->id);
1396         req.resp_size = sbuf.size / BNXT_QPLIB_CMDQE_UNITS;
1397         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, &sbuf, sizeof(req),
1398                                 sizeof(resp), 0);
1399         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
1400         if (rc)
1401                 goto bail;
1402         /* Extract the context from the side buffer */
1403         qp->state = sb->en_sqd_async_notify_state &
1404                         CREQ_QUERY_QP_RESP_SB_STATE_MASK;
1405         qp->en_sqd_async_notify = sb->en_sqd_async_notify_state &
1406                                   CREQ_QUERY_QP_RESP_SB_EN_SQD_ASYNC_NOTIFY;
1407         qp->access = sb->access;
1408         qp->pkey_index = le16_to_cpu(sb->pkey);
1409         qp->qkey = le32_to_cpu(sb->qkey);
1410
1411         temp32[0] = le32_to_cpu(sb->dgid[0]);
1412         temp32[1] = le32_to_cpu(sb->dgid[1]);
1413         temp32[2] = le32_to_cpu(sb->dgid[2]);
1414         temp32[3] = le32_to_cpu(sb->dgid[3]);
1415         memcpy(qp->ah.dgid.data, temp32, sizeof(qp->ah.dgid.data));
1416
1417         qp->ah.flow_label = le32_to_cpu(sb->flow_label);
1418
1419         qp->ah.sgid_index = 0;
1420         for (i = 0; i < res->sgid_tbl.max; i++) {
1421                 if (res->sgid_tbl.hw_id[i] == le16_to_cpu(sb->sgid_index)) {
1422                         qp->ah.sgid_index = i;
1423                         break;
1424                 }
1425         }
1426         if (i == res->sgid_tbl.max)
1427                 dev_warn(&res->pdev->dev, "SGID not found??\n");
1428
1429         qp->ah.hop_limit = sb->hop_limit;
1430         qp->ah.traffic_class = sb->traffic_class;
1431         memcpy(qp->ah.dmac, sb->dest_mac, 6);
1432         qp->ah.vlan_id = (le16_to_cpu(sb->path_mtu_dest_vlan_id) &
1433                                 CREQ_QUERY_QP_RESP_SB_VLAN_ID_MASK) >>
1434                                 CREQ_QUERY_QP_RESP_SB_VLAN_ID_SFT;
1435         qp->path_mtu = (le16_to_cpu(sb->path_mtu_dest_vlan_id) &
1436                                     CREQ_QUERY_QP_RESP_SB_PATH_MTU_MASK) >>
1437                                     CREQ_QUERY_QP_RESP_SB_PATH_MTU_SFT;
1438         qp->timeout = sb->timeout;
1439         qp->retry_cnt = sb->retry_cnt;
1440         qp->rnr_retry = sb->rnr_retry;
1441         qp->min_rnr_timer = sb->min_rnr_timer;
1442         qp->rq.psn = le32_to_cpu(sb->rq_psn);
1443         qp->max_rd_atomic = ORRQ_SLOTS_TO_ORD_LIMIT(sb->max_rd_atomic);
1444         qp->sq.psn = le32_to_cpu(sb->sq_psn);
1445         qp->max_dest_rd_atomic =
1446                         IRRQ_SLOTS_TO_IRD_LIMIT(sb->max_dest_rd_atomic);
1447         qp->sq.max_wqe = qp->sq.hwq.max_elements;
1448         qp->rq.max_wqe = qp->rq.hwq.max_elements;
1449         qp->sq.max_sge = le16_to_cpu(sb->sq_sge);
1450         qp->rq.max_sge = le16_to_cpu(sb->rq_sge);
1451         qp->max_inline_data = le32_to_cpu(sb->max_inline_data);
1452         qp->dest_qpn = le32_to_cpu(sb->dest_qp_id);
1453         memcpy(qp->smac, sb->src_mac, 6);
1454         qp->vlan_id = le16_to_cpu(sb->vlan_pcp_vlan_dei_vlan_id);
1455 bail:
1456         dma_free_coherent(&rcfw->pdev->dev, sbuf.size,
1457                           sbuf.sb, sbuf.dma_addr);
1458         return rc;
1459 }
1460
1461 static void __clean_cq(struct bnxt_qplib_cq *cq, u64 qp)
1462 {
1463         struct bnxt_qplib_hwq *cq_hwq = &cq->hwq;
1464         u32 peek_flags, peek_cons;
1465         struct cq_base *hw_cqe;
1466         int i;
1467
1468         peek_flags = cq->dbinfo.flags;
1469         peek_cons = cq_hwq->cons;
1470         for (i = 0; i < cq_hwq->max_elements; i++) {
1471                 hw_cqe = bnxt_qplib_get_qe(cq_hwq, peek_cons, NULL);
1472                 if (!CQE_CMP_VALID(hw_cqe, peek_flags))
1473                         continue;
1474                 /*
1475                  * The valid test of the entry must be done first before
1476                  * reading any further.
1477                  */
1478                 dma_rmb();
1479                 switch (hw_cqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK) {
1480                 case CQ_BASE_CQE_TYPE_REQ:
1481                 case CQ_BASE_CQE_TYPE_TERMINAL:
1482                 {
1483                         struct cq_req *cqe = (struct cq_req *)hw_cqe;
1484
1485                         if (qp == le64_to_cpu(cqe->qp_handle))
1486                                 cqe->qp_handle = 0;
1487                         break;
1488                 }
1489                 case CQ_BASE_CQE_TYPE_RES_RC:
1490                 case CQ_BASE_CQE_TYPE_RES_UD:
1491                 case CQ_BASE_CQE_TYPE_RES_RAWETH_QP1:
1492                 {
1493                         struct cq_res_rc *cqe = (struct cq_res_rc *)hw_cqe;
1494
1495                         if (qp == le64_to_cpu(cqe->qp_handle))
1496                                 cqe->qp_handle = 0;
1497                         break;
1498                 }
1499                 default:
1500                         break;
1501                 }
1502                 bnxt_qplib_hwq_incr_cons(cq_hwq->max_elements, &peek_cons,
1503                                          1, &peek_flags);
1504         }
1505 }
1506
1507 int bnxt_qplib_destroy_qp(struct bnxt_qplib_res *res,
1508                           struct bnxt_qplib_qp *qp)
1509 {
1510         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
1511         struct creq_destroy_qp_resp resp = {};
1512         struct bnxt_qplib_cmdqmsg msg = {};
1513         struct cmdq_destroy_qp req = {};
1514         u32 tbl_indx;
1515         int rc;
1516
1517         tbl_indx = map_qp_id_to_tbl_indx(qp->id, rcfw);
1518         rcfw->qp_tbl[tbl_indx].qp_id = BNXT_QPLIB_QP_ID_INVALID;
1519         rcfw->qp_tbl[tbl_indx].qp_handle = NULL;
1520
1521         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
1522                                  CMDQ_BASE_OPCODE_DESTROY_QP,
1523                                  sizeof(req));
1524
1525         req.qp_cid = cpu_to_le32(qp->id);
1526         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
1527                                 sizeof(resp), 0);
1528         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
1529         if (rc) {
1530                 rcfw->qp_tbl[tbl_indx].qp_id = qp->id;
1531                 rcfw->qp_tbl[tbl_indx].qp_handle = qp;
1532                 return rc;
1533         }
1534
1535         return 0;
1536 }
1537
1538 void bnxt_qplib_free_qp_res(struct bnxt_qplib_res *res,
1539                             struct bnxt_qplib_qp *qp)
1540 {
1541         bnxt_qplib_free_qp_hdr_buf(res, qp);
1542         bnxt_qplib_free_hwq(res, &qp->sq.hwq);
1543         kfree(qp->sq.swq);
1544
1545         bnxt_qplib_free_hwq(res, &qp->rq.hwq);
1546         kfree(qp->rq.swq);
1547
1548         if (qp->irrq.max_elements)
1549                 bnxt_qplib_free_hwq(res, &qp->irrq);
1550         if (qp->orrq.max_elements)
1551                 bnxt_qplib_free_hwq(res, &qp->orrq);
1552
1553 }
1554
1555 void *bnxt_qplib_get_qp1_sq_buf(struct bnxt_qplib_qp *qp,
1556                                 struct bnxt_qplib_sge *sge)
1557 {
1558         struct bnxt_qplib_q *sq = &qp->sq;
1559         u32 sw_prod;
1560
1561         memset(sge, 0, sizeof(*sge));
1562
1563         if (qp->sq_hdr_buf) {
1564                 sw_prod = sq->swq_start;
1565                 sge->addr = (dma_addr_t)(qp->sq_hdr_buf_map +
1566                                          sw_prod * qp->sq_hdr_buf_size);
1567                 sge->lkey = 0xFFFFFFFF;
1568                 sge->size = qp->sq_hdr_buf_size;
1569                 return qp->sq_hdr_buf + sw_prod * sge->size;
1570         }
1571         return NULL;
1572 }
1573
1574 u32 bnxt_qplib_get_rq_prod_index(struct bnxt_qplib_qp *qp)
1575 {
1576         struct bnxt_qplib_q *rq = &qp->rq;
1577
1578         return rq->swq_start;
1579 }
1580
1581 dma_addr_t bnxt_qplib_get_qp_buf_from_index(struct bnxt_qplib_qp *qp, u32 index)
1582 {
1583         return (qp->rq_hdr_buf_map + index * qp->rq_hdr_buf_size);
1584 }
1585
1586 void *bnxt_qplib_get_qp1_rq_buf(struct bnxt_qplib_qp *qp,
1587                                 struct bnxt_qplib_sge *sge)
1588 {
1589         struct bnxt_qplib_q *rq = &qp->rq;
1590         u32 sw_prod;
1591
1592         memset(sge, 0, sizeof(*sge));
1593
1594         if (qp->rq_hdr_buf) {
1595                 sw_prod = rq->swq_start;
1596                 sge->addr = (dma_addr_t)(qp->rq_hdr_buf_map +
1597                                          sw_prod * qp->rq_hdr_buf_size);
1598                 sge->lkey = 0xFFFFFFFF;
1599                 sge->size = qp->rq_hdr_buf_size;
1600                 return qp->rq_hdr_buf + sw_prod * sge->size;
1601         }
1602         return NULL;
1603 }
1604
1605 /* Fil the MSN table into the next psn row */
1606 static void bnxt_qplib_fill_msn_search(struct bnxt_qplib_qp *qp,
1607                                        struct bnxt_qplib_swqe *wqe,
1608                                        struct bnxt_qplib_swq *swq)
1609 {
1610         struct sq_msn_search *msns;
1611         u32 start_psn, next_psn;
1612         u16 start_idx;
1613
1614         msns = (struct sq_msn_search *)swq->psn_search;
1615         msns->start_idx_next_psn_start_psn = 0;
1616
1617         start_psn = swq->start_psn;
1618         next_psn = swq->next_psn;
1619         start_idx = swq->slot_idx;
1620         msns->start_idx_next_psn_start_psn |=
1621                 bnxt_re_update_msn_tbl(start_idx, next_psn, start_psn);
1622         qp->msn++;
1623         qp->msn %= qp->msn_tbl_sz;
1624 }
1625
1626 static void bnxt_qplib_fill_psn_search(struct bnxt_qplib_qp *qp,
1627                                        struct bnxt_qplib_swqe *wqe,
1628                                        struct bnxt_qplib_swq *swq)
1629 {
1630         struct sq_psn_search_ext *psns_ext;
1631         struct sq_psn_search *psns;
1632         u32 flg_npsn;
1633         u32 op_spsn;
1634
1635         if (!swq->psn_search)
1636                 return;
1637         /* Handle MSN differently on cap flags  */
1638         if (BNXT_RE_HW_RETX(qp->dev_cap_flags)) {
1639                 bnxt_qplib_fill_msn_search(qp, wqe, swq);
1640                 return;
1641         }
1642         psns = (struct sq_psn_search *)swq->psn_search;
1643         psns = swq->psn_search;
1644         psns_ext = swq->psn_ext;
1645
1646         op_spsn = ((swq->start_psn << SQ_PSN_SEARCH_START_PSN_SFT) &
1647                     SQ_PSN_SEARCH_START_PSN_MASK);
1648         op_spsn |= ((wqe->type << SQ_PSN_SEARCH_OPCODE_SFT) &
1649                      SQ_PSN_SEARCH_OPCODE_MASK);
1650         flg_npsn = ((swq->next_psn << SQ_PSN_SEARCH_NEXT_PSN_SFT) &
1651                      SQ_PSN_SEARCH_NEXT_PSN_MASK);
1652
1653         if (bnxt_qplib_is_chip_gen_p5_p7(qp->cctx)) {
1654                 psns_ext->opcode_start_psn = cpu_to_le32(op_spsn);
1655                 psns_ext->flags_next_psn = cpu_to_le32(flg_npsn);
1656                 psns_ext->start_slot_idx = cpu_to_le16(swq->slot_idx);
1657         } else {
1658                 psns->opcode_start_psn = cpu_to_le32(op_spsn);
1659                 psns->flags_next_psn = cpu_to_le32(flg_npsn);
1660         }
1661 }
1662
1663 static int bnxt_qplib_put_inline(struct bnxt_qplib_qp *qp,
1664                                  struct bnxt_qplib_swqe *wqe,
1665                                  u16 *idx)
1666 {
1667         struct bnxt_qplib_hwq *hwq;
1668         int len, t_len, offt;
1669         bool pull_dst = true;
1670         void *il_dst = NULL;
1671         void *il_src = NULL;
1672         int t_cplen, cplen;
1673         int indx;
1674
1675         hwq = &qp->sq.hwq;
1676         t_len = 0;
1677         for (indx = 0; indx < wqe->num_sge; indx++) {
1678                 len = wqe->sg_list[indx].size;
1679                 il_src = (void *)wqe->sg_list[indx].addr;
1680                 t_len += len;
1681                 if (t_len > qp->max_inline_data)
1682                         return -ENOMEM;
1683                 while (len) {
1684                         if (pull_dst) {
1685                                 pull_dst = false;
1686                                 il_dst = bnxt_qplib_get_prod_qe(hwq, *idx);
1687                                 (*idx)++;
1688                                 t_cplen = 0;
1689                                 offt = 0;
1690                         }
1691                         cplen = min_t(int, len, sizeof(struct sq_sge));
1692                         cplen = min_t(int, cplen,
1693                                         (sizeof(struct sq_sge) - offt));
1694                         memcpy(il_dst, il_src, cplen);
1695                         t_cplen += cplen;
1696                         il_src += cplen;
1697                         il_dst += cplen;
1698                         offt += cplen;
1699                         len -= cplen;
1700                         if (t_cplen == sizeof(struct sq_sge))
1701                                 pull_dst = true;
1702                 }
1703         }
1704
1705         return t_len;
1706 }
1707
1708 static u32 bnxt_qplib_put_sges(struct bnxt_qplib_hwq *hwq,
1709                                struct bnxt_qplib_sge *ssge,
1710                                u16 nsge, u16 *idx)
1711 {
1712         struct sq_sge *dsge;
1713         int indx, len = 0;
1714
1715         for (indx = 0; indx < nsge; indx++, (*idx)++) {
1716                 dsge = bnxt_qplib_get_prod_qe(hwq, *idx);
1717                 dsge->va_or_pa = cpu_to_le64(ssge[indx].addr);
1718                 dsge->l_key = cpu_to_le32(ssge[indx].lkey);
1719                 dsge->size = cpu_to_le32(ssge[indx].size);
1720                 len += ssge[indx].size;
1721         }
1722
1723         return len;
1724 }
1725
1726 static u16 bnxt_qplib_required_slots(struct bnxt_qplib_qp *qp,
1727                                      struct bnxt_qplib_swqe *wqe,
1728                                      u16 *wqe_sz, u16 *qdf, u8 mode)
1729 {
1730         u32 ilsize, bytes;
1731         u16 nsge;
1732         u16 slot;
1733
1734         nsge = wqe->num_sge;
1735         /* Adding sq_send_hdr is a misnomer, for rq also hdr size is same. */
1736         bytes = sizeof(struct sq_send_hdr) + nsge * sizeof(struct sq_sge);
1737         if (wqe->flags & BNXT_QPLIB_SWQE_FLAGS_INLINE) {
1738                 ilsize = bnxt_qplib_calc_ilsize(wqe, qp->max_inline_data);
1739                 bytes = ALIGN(ilsize, sizeof(struct sq_sge));
1740                 bytes += sizeof(struct sq_send_hdr);
1741         }
1742
1743         *qdf =  __xlate_qfd(qp->sq.q_full_delta, bytes);
1744         slot = bytes >> 4;
1745         *wqe_sz = slot;
1746         if (mode == BNXT_QPLIB_WQE_MODE_STATIC)
1747                 slot = 8;
1748         return slot;
1749 }
1750
1751 static void bnxt_qplib_pull_psn_buff(struct bnxt_qplib_qp *qp, struct bnxt_qplib_q *sq,
1752                                      struct bnxt_qplib_swq *swq, bool hw_retx)
1753 {
1754         struct bnxt_qplib_hwq *hwq;
1755         u32 pg_num, pg_indx;
1756         void *buff;
1757         u32 tail;
1758
1759         hwq = &sq->hwq;
1760         if (!hwq->pad_pg)
1761                 return;
1762         tail = swq->slot_idx / sq->dbinfo.max_slot;
1763         if (hw_retx) {
1764                 /* For HW retx use qp msn index */
1765                 tail = qp->msn;
1766                 tail %= qp->msn_tbl_sz;
1767         }
1768         pg_num = (tail + hwq->pad_pgofft) / (PAGE_SIZE / hwq->pad_stride);
1769         pg_indx = (tail + hwq->pad_pgofft) % (PAGE_SIZE / hwq->pad_stride);
1770         buff = (void *)(hwq->pad_pg[pg_num] + pg_indx * hwq->pad_stride);
1771         swq->psn_ext = buff;
1772         swq->psn_search = buff;
1773 }
1774
1775 void bnxt_qplib_post_send_db(struct bnxt_qplib_qp *qp)
1776 {
1777         struct bnxt_qplib_q *sq = &qp->sq;
1778
1779         bnxt_qplib_ring_prod_db(&sq->dbinfo, DBC_DBC_TYPE_SQ);
1780 }
1781
1782 int bnxt_qplib_post_send(struct bnxt_qplib_qp *qp,
1783                          struct bnxt_qplib_swqe *wqe)
1784 {
1785         struct bnxt_qplib_nq_work *nq_work = NULL;
1786         int i, rc = 0, data_len = 0, pkt_num = 0;
1787         struct bnxt_qplib_q *sq = &qp->sq;
1788         struct bnxt_qplib_hwq *hwq;
1789         struct bnxt_qplib_swq *swq;
1790         bool sch_handler = false;
1791         u16 wqe_sz, qdf = 0;
1792         bool msn_update;
1793         void *base_hdr;
1794         void *ext_hdr;
1795         __le32 temp32;
1796         u32 wqe_idx;
1797         u32 slots;
1798         u16 idx;
1799
1800         hwq = &sq->hwq;
1801         if (qp->state != CMDQ_MODIFY_QP_NEW_STATE_RTS &&
1802             qp->state != CMDQ_MODIFY_QP_NEW_STATE_ERR) {
1803                 dev_err(&hwq->pdev->dev,
1804                         "QPLIB: FP: QP (0x%x) is in the 0x%x state",
1805                         qp->id, qp->state);
1806                 rc = -EINVAL;
1807                 goto done;
1808         }
1809
1810         slots = bnxt_qplib_required_slots(qp, wqe, &wqe_sz, &qdf, qp->wqe_mode);
1811         if (bnxt_qplib_queue_full(sq, slots + qdf)) {
1812                 dev_err(&hwq->pdev->dev,
1813                         "prod = %#x cons = %#x qdepth = %#x delta = %#x\n",
1814                         hwq->prod, hwq->cons, hwq->depth, sq->q_full_delta);
1815                 rc = -ENOMEM;
1816                 goto done;
1817         }
1818
1819         swq = bnxt_qplib_get_swqe(sq, &wqe_idx);
1820         bnxt_qplib_pull_psn_buff(qp, sq, swq, BNXT_RE_HW_RETX(qp->dev_cap_flags));
1821
1822         idx = 0;
1823         swq->slot_idx = hwq->prod;
1824         swq->slots = slots;
1825         swq->wr_id = wqe->wr_id;
1826         swq->type = wqe->type;
1827         swq->flags = wqe->flags;
1828         swq->start_psn = sq->psn & BTH_PSN_MASK;
1829         if (qp->sig_type)
1830                 swq->flags |= SQ_SEND_FLAGS_SIGNAL_COMP;
1831
1832         if (qp->state == CMDQ_MODIFY_QP_NEW_STATE_ERR) {
1833                 sch_handler = true;
1834                 dev_dbg(&hwq->pdev->dev,
1835                         "%s Error QP. Scheduling for poll_cq\n", __func__);
1836                 goto queue_err;
1837         }
1838
1839         base_hdr = bnxt_qplib_get_prod_qe(hwq, idx++);
1840         ext_hdr = bnxt_qplib_get_prod_qe(hwq, idx++);
1841         memset(base_hdr, 0, sizeof(struct sq_sge));
1842         memset(ext_hdr, 0, sizeof(struct sq_sge));
1843
1844         if (wqe->flags & BNXT_QPLIB_SWQE_FLAGS_INLINE)
1845                 /* Copy the inline data */
1846                 data_len = bnxt_qplib_put_inline(qp, wqe, &idx);
1847         else
1848                 data_len = bnxt_qplib_put_sges(hwq, wqe->sg_list, wqe->num_sge,
1849                                                &idx);
1850         if (data_len < 0)
1851                 goto queue_err;
1852         /* Make sure we update MSN table only for wired wqes */
1853         msn_update = true;
1854         /* Specifics */
1855         switch (wqe->type) {
1856         case BNXT_QPLIB_SWQE_TYPE_SEND:
1857                 if (qp->type == CMDQ_CREATE_QP1_TYPE_GSI) {
1858                         struct sq_send_raweth_qp1_hdr *sqe = base_hdr;
1859                         struct sq_raw_ext_hdr *ext_sqe = ext_hdr;
1860                         /* Assemble info for Raw Ethertype QPs */
1861
1862                         sqe->wqe_type = wqe->type;
1863                         sqe->flags = wqe->flags;
1864                         sqe->wqe_size = wqe_sz;
1865                         sqe->cfa_action = cpu_to_le16(wqe->rawqp1.cfa_action);
1866                         sqe->lflags = cpu_to_le16(wqe->rawqp1.lflags);
1867                         sqe->length = cpu_to_le32(data_len);
1868                         ext_sqe->cfa_meta = cpu_to_le32((wqe->rawqp1.cfa_meta &
1869                                 SQ_SEND_RAWETH_QP1_CFA_META_VLAN_VID_MASK) <<
1870                                 SQ_SEND_RAWETH_QP1_CFA_META_VLAN_VID_SFT);
1871
1872                         break;
1873                 }
1874                 fallthrough;
1875         case BNXT_QPLIB_SWQE_TYPE_SEND_WITH_IMM:
1876         case BNXT_QPLIB_SWQE_TYPE_SEND_WITH_INV:
1877         {
1878                 struct sq_ud_ext_hdr *ext_sqe = ext_hdr;
1879                 struct sq_send_hdr *sqe = base_hdr;
1880
1881                 sqe->wqe_type = wqe->type;
1882                 sqe->flags = wqe->flags;
1883                 sqe->wqe_size = wqe_sz;
1884                 sqe->inv_key_or_imm_data = cpu_to_le32(wqe->send.inv_key);
1885                 if (qp->type == CMDQ_CREATE_QP_TYPE_UD ||
1886                     qp->type == CMDQ_CREATE_QP_TYPE_GSI) {
1887                         sqe->q_key = cpu_to_le32(wqe->send.q_key);
1888                         sqe->length = cpu_to_le32(data_len);
1889                         sq->psn = (sq->psn + 1) & BTH_PSN_MASK;
1890                         ext_sqe->dst_qp = cpu_to_le32(wqe->send.dst_qp &
1891                                                       SQ_SEND_DST_QP_MASK);
1892                         ext_sqe->avid = cpu_to_le32(wqe->send.avid &
1893                                                     SQ_SEND_AVID_MASK);
1894                         msn_update = false;
1895                 } else {
1896                         sqe->length = cpu_to_le32(data_len);
1897                         if (qp->mtu)
1898                                 pkt_num = (data_len + qp->mtu - 1) / qp->mtu;
1899                         if (!pkt_num)
1900                                 pkt_num = 1;
1901                         sq->psn = (sq->psn + pkt_num) & BTH_PSN_MASK;
1902                 }
1903                 break;
1904         }
1905         case BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE:
1906         case BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE_WITH_IMM:
1907         case BNXT_QPLIB_SWQE_TYPE_RDMA_READ:
1908         {
1909                 struct sq_rdma_ext_hdr *ext_sqe = ext_hdr;
1910                 struct sq_rdma_hdr *sqe = base_hdr;
1911
1912                 sqe->wqe_type = wqe->type;
1913                 sqe->flags = wqe->flags;
1914                 sqe->wqe_size = wqe_sz;
1915                 sqe->imm_data = cpu_to_le32(wqe->rdma.inv_key);
1916                 sqe->length = cpu_to_le32((u32)data_len);
1917                 ext_sqe->remote_va = cpu_to_le64(wqe->rdma.remote_va);
1918                 ext_sqe->remote_key = cpu_to_le32(wqe->rdma.r_key);
1919                 if (qp->mtu)
1920                         pkt_num = (data_len + qp->mtu - 1) / qp->mtu;
1921                 if (!pkt_num)
1922                         pkt_num = 1;
1923                 sq->psn = (sq->psn + pkt_num) & BTH_PSN_MASK;
1924                 break;
1925         }
1926         case BNXT_QPLIB_SWQE_TYPE_ATOMIC_CMP_AND_SWP:
1927         case BNXT_QPLIB_SWQE_TYPE_ATOMIC_FETCH_AND_ADD:
1928         {
1929                 struct sq_atomic_ext_hdr *ext_sqe = ext_hdr;
1930                 struct sq_atomic_hdr *sqe = base_hdr;
1931
1932                 sqe->wqe_type = wqe->type;
1933                 sqe->flags = wqe->flags;
1934                 sqe->remote_key = cpu_to_le32(wqe->atomic.r_key);
1935                 sqe->remote_va = cpu_to_le64(wqe->atomic.remote_va);
1936                 ext_sqe->swap_data = cpu_to_le64(wqe->atomic.swap_data);
1937                 ext_sqe->cmp_data = cpu_to_le64(wqe->atomic.cmp_data);
1938                 if (qp->mtu)
1939                         pkt_num = (data_len + qp->mtu - 1) / qp->mtu;
1940                 if (!pkt_num)
1941                         pkt_num = 1;
1942                 sq->psn = (sq->psn + pkt_num) & BTH_PSN_MASK;
1943                 break;
1944         }
1945         case BNXT_QPLIB_SWQE_TYPE_LOCAL_INV:
1946         {
1947                 struct sq_localinvalidate *sqe = base_hdr;
1948
1949                 sqe->wqe_type = wqe->type;
1950                 sqe->flags = wqe->flags;
1951                 sqe->inv_l_key = cpu_to_le32(wqe->local_inv.inv_l_key);
1952                 msn_update = false;
1953                 break;
1954         }
1955         case BNXT_QPLIB_SWQE_TYPE_FAST_REG_MR:
1956         {
1957                 struct sq_fr_pmr_ext_hdr *ext_sqe = ext_hdr;
1958                 struct sq_fr_pmr_hdr *sqe = base_hdr;
1959
1960                 sqe->wqe_type = wqe->type;
1961                 sqe->flags = wqe->flags;
1962                 sqe->access_cntl = wqe->frmr.access_cntl |
1963                                    SQ_FR_PMR_ACCESS_CNTL_LOCAL_WRITE;
1964                 sqe->zero_based_page_size_log =
1965                         (wqe->frmr.pg_sz_log & SQ_FR_PMR_PAGE_SIZE_LOG_MASK) <<
1966                         SQ_FR_PMR_PAGE_SIZE_LOG_SFT |
1967                         (wqe->frmr.zero_based ? SQ_FR_PMR_ZERO_BASED : 0);
1968                 sqe->l_key = cpu_to_le32(wqe->frmr.l_key);
1969                 temp32 = cpu_to_le32(wqe->frmr.length);
1970                 memcpy(sqe->length, &temp32, sizeof(wqe->frmr.length));
1971                 sqe->numlevels_pbl_page_size_log =
1972                         ((wqe->frmr.pbl_pg_sz_log <<
1973                                         SQ_FR_PMR_PBL_PAGE_SIZE_LOG_SFT) &
1974                                         SQ_FR_PMR_PBL_PAGE_SIZE_LOG_MASK) |
1975                         ((wqe->frmr.levels << SQ_FR_PMR_NUMLEVELS_SFT) &
1976                                         SQ_FR_PMR_NUMLEVELS_MASK);
1977
1978                 for (i = 0; i < wqe->frmr.page_list_len; i++)
1979                         wqe->frmr.pbl_ptr[i] = cpu_to_le64(
1980                                                 wqe->frmr.page_list[i] |
1981                                                 PTU_PTE_VALID);
1982                 ext_sqe->pblptr = cpu_to_le64(wqe->frmr.pbl_dma_ptr);
1983                 ext_sqe->va = cpu_to_le64(wqe->frmr.va);
1984                 msn_update = false;
1985
1986                 break;
1987         }
1988         case BNXT_QPLIB_SWQE_TYPE_BIND_MW:
1989         {
1990                 struct sq_bind_ext_hdr *ext_sqe = ext_hdr;
1991                 struct sq_bind_hdr *sqe = base_hdr;
1992
1993                 sqe->wqe_type = wqe->type;
1994                 sqe->flags = wqe->flags;
1995                 sqe->access_cntl = wqe->bind.access_cntl;
1996                 sqe->mw_type_zero_based = wqe->bind.mw_type |
1997                         (wqe->bind.zero_based ? SQ_BIND_ZERO_BASED : 0);
1998                 sqe->parent_l_key = cpu_to_le32(wqe->bind.parent_l_key);
1999                 sqe->l_key = cpu_to_le32(wqe->bind.r_key);
2000                 ext_sqe->va = cpu_to_le64(wqe->bind.va);
2001                 ext_sqe->length_lo = cpu_to_le32(wqe->bind.length);
2002                 msn_update = false;
2003                 break;
2004         }
2005         default:
2006                 /* Bad wqe, return error */
2007                 rc = -EINVAL;
2008                 goto done;
2009         }
2010         if (!BNXT_RE_HW_RETX(qp->dev_cap_flags) || msn_update) {
2011                 swq->next_psn = sq->psn & BTH_PSN_MASK;
2012                 bnxt_qplib_fill_psn_search(qp, wqe, swq);
2013         }
2014 queue_err:
2015         bnxt_qplib_swq_mod_start(sq, wqe_idx);
2016         bnxt_qplib_hwq_incr_prod(&sq->dbinfo, hwq, swq->slots);
2017         qp->wqe_cnt++;
2018 done:
2019         if (sch_handler) {
2020                 nq_work = kzalloc(sizeof(*nq_work), GFP_ATOMIC);
2021                 if (nq_work) {
2022                         nq_work->cq = qp->scq;
2023                         nq_work->nq = qp->scq->nq;
2024                         INIT_WORK(&nq_work->work, bnxt_qpn_cqn_sched_task);
2025                         queue_work(qp->scq->nq->cqn_wq, &nq_work->work);
2026                 } else {
2027                         dev_err(&hwq->pdev->dev,
2028                                 "FP: Failed to allocate SQ nq_work!\n");
2029                         rc = -ENOMEM;
2030                 }
2031         }
2032         return rc;
2033 }
2034
2035 void bnxt_qplib_post_recv_db(struct bnxt_qplib_qp *qp)
2036 {
2037         struct bnxt_qplib_q *rq = &qp->rq;
2038
2039         bnxt_qplib_ring_prod_db(&rq->dbinfo, DBC_DBC_TYPE_RQ);
2040 }
2041
2042 int bnxt_qplib_post_recv(struct bnxt_qplib_qp *qp,
2043                          struct bnxt_qplib_swqe *wqe)
2044 {
2045         struct bnxt_qplib_nq_work *nq_work = NULL;
2046         struct bnxt_qplib_q *rq = &qp->rq;
2047         struct rq_wqe_hdr *base_hdr;
2048         struct rq_ext_hdr *ext_hdr;
2049         struct bnxt_qplib_hwq *hwq;
2050         struct bnxt_qplib_swq *swq;
2051         bool sch_handler = false;
2052         u16 wqe_sz, idx;
2053         u32 wqe_idx;
2054         int rc = 0;
2055
2056         hwq = &rq->hwq;
2057         if (qp->state == CMDQ_MODIFY_QP_NEW_STATE_RESET) {
2058                 dev_err(&hwq->pdev->dev,
2059                         "QPLIB: FP: QP (0x%x) is in the 0x%x state",
2060                         qp->id, qp->state);
2061                 rc = -EINVAL;
2062                 goto done;
2063         }
2064
2065         if (bnxt_qplib_queue_full(rq, rq->dbinfo.max_slot)) {
2066                 dev_err(&hwq->pdev->dev,
2067                         "FP: QP (0x%x) RQ is full!\n", qp->id);
2068                 rc = -EINVAL;
2069                 goto done;
2070         }
2071
2072         swq = bnxt_qplib_get_swqe(rq, &wqe_idx);
2073         swq->wr_id = wqe->wr_id;
2074         swq->slots = rq->dbinfo.max_slot;
2075
2076         if (qp->state == CMDQ_MODIFY_QP_NEW_STATE_ERR) {
2077                 sch_handler = true;
2078                 dev_dbg(&hwq->pdev->dev,
2079                         "%s: Error QP. Scheduling for poll_cq\n", __func__);
2080                 goto queue_err;
2081         }
2082
2083         idx = 0;
2084         base_hdr = bnxt_qplib_get_prod_qe(hwq, idx++);
2085         ext_hdr = bnxt_qplib_get_prod_qe(hwq, idx++);
2086         memset(base_hdr, 0, sizeof(struct sq_sge));
2087         memset(ext_hdr, 0, sizeof(struct sq_sge));
2088         wqe_sz = (sizeof(struct rq_wqe_hdr) +
2089         wqe->num_sge * sizeof(struct sq_sge)) >> 4;
2090         bnxt_qplib_put_sges(hwq, wqe->sg_list, wqe->num_sge, &idx);
2091         if (!wqe->num_sge) {
2092                 struct sq_sge *sge;
2093
2094                 sge = bnxt_qplib_get_prod_qe(hwq, idx++);
2095                 sge->size = 0;
2096                 wqe_sz++;
2097         }
2098         base_hdr->wqe_type = wqe->type;
2099         base_hdr->flags = wqe->flags;
2100         base_hdr->wqe_size = wqe_sz;
2101         base_hdr->wr_id[0] = cpu_to_le32(wqe_idx);
2102 queue_err:
2103         bnxt_qplib_swq_mod_start(rq, wqe_idx);
2104         bnxt_qplib_hwq_incr_prod(&rq->dbinfo, hwq, swq->slots);
2105 done:
2106         if (sch_handler) {
2107                 nq_work = kzalloc(sizeof(*nq_work), GFP_ATOMIC);
2108                 if (nq_work) {
2109                         nq_work->cq = qp->rcq;
2110                         nq_work->nq = qp->rcq->nq;
2111                         INIT_WORK(&nq_work->work, bnxt_qpn_cqn_sched_task);
2112                         queue_work(qp->rcq->nq->cqn_wq, &nq_work->work);
2113                 } else {
2114                         dev_err(&hwq->pdev->dev,
2115                                 "FP: Failed to allocate RQ nq_work!\n");
2116                         rc = -ENOMEM;
2117                 }
2118         }
2119
2120         return rc;
2121 }
2122
2123 /* CQ */
2124 int bnxt_qplib_create_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
2125 {
2126         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
2127         struct bnxt_qplib_hwq_attr hwq_attr = {};
2128         struct creq_create_cq_resp resp = {};
2129         struct bnxt_qplib_cmdqmsg msg = {};
2130         struct cmdq_create_cq req = {};
2131         struct bnxt_qplib_pbl *pbl;
2132         u32 pg_sz_lvl;
2133         int rc;
2134
2135         if (!cq->dpi) {
2136                 dev_err(&rcfw->pdev->dev,
2137                         "FP: CREATE_CQ failed due to NULL DPI\n");
2138                 return -EINVAL;
2139         }
2140
2141         cq->dbinfo.flags = 0;
2142         hwq_attr.res = res;
2143         hwq_attr.depth = cq->max_wqe;
2144         hwq_attr.stride = sizeof(struct cq_base);
2145         hwq_attr.type = HWQ_TYPE_QUEUE;
2146         hwq_attr.sginfo = &cq->sg_info;
2147         rc = bnxt_qplib_alloc_init_hwq(&cq->hwq, &hwq_attr);
2148         if (rc)
2149                 return rc;
2150
2151         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
2152                                  CMDQ_BASE_OPCODE_CREATE_CQ,
2153                                  sizeof(req));
2154
2155         req.dpi = cpu_to_le32(cq->dpi->dpi);
2156         req.cq_handle = cpu_to_le64(cq->cq_handle);
2157         req.cq_size = cpu_to_le32(cq->max_wqe);
2158         pbl = &cq->hwq.pbl[PBL_LVL_0];
2159         pg_sz_lvl = (bnxt_qplib_base_pg_size(&cq->hwq) <<
2160                      CMDQ_CREATE_CQ_PG_SIZE_SFT);
2161         pg_sz_lvl |= (cq->hwq.level & CMDQ_CREATE_CQ_LVL_MASK);
2162         req.pg_size_lvl = cpu_to_le32(pg_sz_lvl);
2163         req.pbl = cpu_to_le64(pbl->pg_map_arr[0]);
2164         req.cq_fco_cnq_id = cpu_to_le32(
2165                         (cq->cnq_hw_ring_id & CMDQ_CREATE_CQ_CNQ_ID_MASK) <<
2166                          CMDQ_CREATE_CQ_CNQ_ID_SFT);
2167         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
2168                                 sizeof(resp), 0);
2169         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
2170         if (rc)
2171                 goto fail;
2172
2173         cq->id = le32_to_cpu(resp.xid);
2174         cq->period = BNXT_QPLIB_QUEUE_START_PERIOD;
2175         init_waitqueue_head(&cq->waitq);
2176         INIT_LIST_HEAD(&cq->sqf_head);
2177         INIT_LIST_HEAD(&cq->rqf_head);
2178         spin_lock_init(&cq->compl_lock);
2179         spin_lock_init(&cq->flush_lock);
2180
2181         cq->dbinfo.hwq = &cq->hwq;
2182         cq->dbinfo.xid = cq->id;
2183         cq->dbinfo.db = cq->dpi->dbr;
2184         cq->dbinfo.priv_db = res->dpi_tbl.priv_db;
2185         cq->dbinfo.flags = 0;
2186         cq->dbinfo.toggle = 0;
2187
2188         bnxt_qplib_armen_db(&cq->dbinfo, DBC_DBC_TYPE_CQ_ARMENA);
2189
2190         return 0;
2191
2192 fail:
2193         bnxt_qplib_free_hwq(res, &cq->hwq);
2194         return rc;
2195 }
2196
2197 void bnxt_qplib_resize_cq_complete(struct bnxt_qplib_res *res,
2198                                    struct bnxt_qplib_cq *cq)
2199 {
2200         bnxt_qplib_free_hwq(res, &cq->hwq);
2201         memcpy(&cq->hwq, &cq->resize_hwq, sizeof(cq->hwq));
2202        /* Reset only the cons bit in the flags */
2203         cq->dbinfo.flags &= ~(1UL << BNXT_QPLIB_FLAG_EPOCH_CONS_SHIFT);
2204 }
2205
2206 int bnxt_qplib_resize_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq,
2207                          int new_cqes)
2208 {
2209         struct bnxt_qplib_hwq_attr hwq_attr = {};
2210         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
2211         struct creq_resize_cq_resp resp = {};
2212         struct bnxt_qplib_cmdqmsg msg = {};
2213         struct cmdq_resize_cq req = {};
2214         struct bnxt_qplib_pbl *pbl;
2215         u32 pg_sz, lvl, new_sz;
2216         int rc;
2217
2218         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
2219                                  CMDQ_BASE_OPCODE_RESIZE_CQ,
2220                                  sizeof(req));
2221         hwq_attr.sginfo = &cq->sg_info;
2222         hwq_attr.res = res;
2223         hwq_attr.depth = new_cqes;
2224         hwq_attr.stride = sizeof(struct cq_base);
2225         hwq_attr.type = HWQ_TYPE_QUEUE;
2226         rc = bnxt_qplib_alloc_init_hwq(&cq->resize_hwq, &hwq_attr);
2227         if (rc)
2228                 return rc;
2229
2230         req.cq_cid = cpu_to_le32(cq->id);
2231         pbl = &cq->resize_hwq.pbl[PBL_LVL_0];
2232         pg_sz = bnxt_qplib_base_pg_size(&cq->resize_hwq);
2233         lvl = (cq->resize_hwq.level << CMDQ_RESIZE_CQ_LVL_SFT) &
2234                                        CMDQ_RESIZE_CQ_LVL_MASK;
2235         new_sz = (new_cqes << CMDQ_RESIZE_CQ_NEW_CQ_SIZE_SFT) &
2236                   CMDQ_RESIZE_CQ_NEW_CQ_SIZE_MASK;
2237         req.new_cq_size_pg_size_lvl = cpu_to_le32(new_sz | pg_sz | lvl);
2238         req.new_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
2239
2240         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
2241                                 sizeof(resp), 0);
2242         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
2243         return rc;
2244 }
2245
2246 int bnxt_qplib_destroy_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
2247 {
2248         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
2249         struct creq_destroy_cq_resp resp = {};
2250         struct bnxt_qplib_cmdqmsg msg = {};
2251         struct cmdq_destroy_cq req = {};
2252         u16 total_cnq_events;
2253         int rc;
2254
2255         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
2256                                  CMDQ_BASE_OPCODE_DESTROY_CQ,
2257                                  sizeof(req));
2258
2259         req.cq_cid = cpu_to_le32(cq->id);
2260         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
2261                                 sizeof(resp), 0);
2262         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
2263         if (rc)
2264                 return rc;
2265         total_cnq_events = le16_to_cpu(resp.total_cnq_events);
2266         __wait_for_all_nqes(cq, total_cnq_events);
2267         bnxt_qplib_free_hwq(res, &cq->hwq);
2268         return 0;
2269 }
2270
2271 static int __flush_sq(struct bnxt_qplib_q *sq, struct bnxt_qplib_qp *qp,
2272                       struct bnxt_qplib_cqe **pcqe, int *budget)
2273 {
2274         struct bnxt_qplib_cqe *cqe;
2275         u32 start, last;
2276         int rc = 0;
2277
2278         /* Now complete all outstanding SQEs with FLUSHED_ERR */
2279         start = sq->swq_start;
2280         cqe = *pcqe;
2281         while (*budget) {
2282                 last = sq->swq_last;
2283                 if (start == last)
2284                         break;
2285                 /* Skip the FENCE WQE completions */
2286                 if (sq->swq[last].wr_id == BNXT_QPLIB_FENCE_WRID) {
2287                         bnxt_qplib_cancel_phantom_processing(qp);
2288                         goto skip_compl;
2289                 }
2290                 memset(cqe, 0, sizeof(*cqe));
2291                 cqe->status = CQ_REQ_STATUS_WORK_REQUEST_FLUSHED_ERR;
2292                 cqe->opcode = CQ_BASE_CQE_TYPE_REQ;
2293                 cqe->qp_handle = (u64)(unsigned long)qp;
2294                 cqe->wr_id = sq->swq[last].wr_id;
2295                 cqe->src_qp = qp->id;
2296                 cqe->type = sq->swq[last].type;
2297                 cqe++;
2298                 (*budget)--;
2299 skip_compl:
2300                 bnxt_qplib_hwq_incr_cons(sq->hwq.max_elements, &sq->hwq.cons,
2301                                          sq->swq[last].slots, &sq->dbinfo.flags);
2302                 sq->swq_last = sq->swq[last].next_idx;
2303         }
2304         *pcqe = cqe;
2305         if (!(*budget) && sq->swq_last != start)
2306                 /* Out of budget */
2307                 rc = -EAGAIN;
2308
2309         return rc;
2310 }
2311
2312 static int __flush_rq(struct bnxt_qplib_q *rq, struct bnxt_qplib_qp *qp,
2313                       struct bnxt_qplib_cqe **pcqe, int *budget)
2314 {
2315         struct bnxt_qplib_cqe *cqe;
2316         u32 start, last;
2317         int opcode = 0;
2318         int rc = 0;
2319
2320         switch (qp->type) {
2321         case CMDQ_CREATE_QP1_TYPE_GSI:
2322                 opcode = CQ_BASE_CQE_TYPE_RES_RAWETH_QP1;
2323                 break;
2324         case CMDQ_CREATE_QP_TYPE_RC:
2325                 opcode = CQ_BASE_CQE_TYPE_RES_RC;
2326                 break;
2327         case CMDQ_CREATE_QP_TYPE_UD:
2328         case CMDQ_CREATE_QP_TYPE_GSI:
2329                 opcode = CQ_BASE_CQE_TYPE_RES_UD;
2330                 break;
2331         }
2332
2333         /* Flush the rest of the RQ */
2334         start = rq->swq_start;
2335         cqe = *pcqe;
2336         while (*budget) {
2337                 last = rq->swq_last;
2338                 if (last == start)
2339                         break;
2340                 memset(cqe, 0, sizeof(*cqe));
2341                 cqe->status =
2342                     CQ_RES_RC_STATUS_WORK_REQUEST_FLUSHED_ERR;
2343                 cqe->opcode = opcode;
2344                 cqe->qp_handle = (unsigned long)qp;
2345                 cqe->wr_id = rq->swq[last].wr_id;
2346                 cqe++;
2347                 (*budget)--;
2348                 bnxt_qplib_hwq_incr_cons(rq->hwq.max_elements, &rq->hwq.cons,
2349                                          rq->swq[last].slots, &rq->dbinfo.flags);
2350                 rq->swq_last = rq->swq[last].next_idx;
2351         }
2352         *pcqe = cqe;
2353         if (!*budget && rq->swq_last != start)
2354                 /* Out of budget */
2355                 rc = -EAGAIN;
2356
2357         return rc;
2358 }
2359
2360 void bnxt_qplib_mark_qp_error(void *qp_handle)
2361 {
2362         struct bnxt_qplib_qp *qp = qp_handle;
2363
2364         if (!qp)
2365                 return;
2366
2367         /* Must block new posting of SQ and RQ */
2368         qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
2369         bnxt_qplib_cancel_phantom_processing(qp);
2370 }
2371
2372 /* Note: SQE is valid from sw_sq_cons up to cqe_sq_cons (exclusive)
2373  *       CQE is track from sw_cq_cons to max_element but valid only if VALID=1
2374  */
2375 static int do_wa9060(struct bnxt_qplib_qp *qp, struct bnxt_qplib_cq *cq,
2376                      u32 cq_cons, u32 swq_last, u32 cqe_sq_cons)
2377 {
2378         u32 peek_sw_cq_cons, peek_sq_cons_idx, peek_flags;
2379         struct bnxt_qplib_q *sq = &qp->sq;
2380         struct cq_req *peek_req_hwcqe;
2381         struct bnxt_qplib_qp *peek_qp;
2382         struct bnxt_qplib_q *peek_sq;
2383         struct bnxt_qplib_swq *swq;
2384         struct cq_base *peek_hwcqe;
2385         int i, rc = 0;
2386
2387         /* Normal mode */
2388         /* Check for the psn_search marking before completing */
2389         swq = &sq->swq[swq_last];
2390         if (swq->psn_search &&
2391             le32_to_cpu(swq->psn_search->flags_next_psn) & 0x80000000) {
2392                 /* Unmark */
2393                 swq->psn_search->flags_next_psn = cpu_to_le32
2394                         (le32_to_cpu(swq->psn_search->flags_next_psn)
2395                                      & ~0x80000000);
2396                 dev_dbg(&cq->hwq.pdev->dev,
2397                         "FP: Process Req cq_cons=0x%x qp=0x%x sq cons sw=0x%x cqe=0x%x marked!\n",
2398                         cq_cons, qp->id, swq_last, cqe_sq_cons);
2399                 sq->condition = true;
2400                 sq->send_phantom = true;
2401
2402                 /* TODO: Only ARM if the previous SQE is ARMALL */
2403                 bnxt_qplib_ring_db(&cq->dbinfo, DBC_DBC_TYPE_CQ_ARMALL);
2404                 rc = -EAGAIN;
2405                 goto out;
2406         }
2407         if (sq->condition) {
2408                 /* Peek at the completions */
2409                 peek_flags = cq->dbinfo.flags;
2410                 peek_sw_cq_cons = cq_cons;
2411                 i = cq->hwq.max_elements;
2412                 while (i--) {
2413                         peek_hwcqe = bnxt_qplib_get_qe(&cq->hwq,
2414                                                        peek_sw_cq_cons, NULL);
2415                         /* If the next hwcqe is VALID */
2416                         if (CQE_CMP_VALID(peek_hwcqe, peek_flags)) {
2417                         /*
2418                          * The valid test of the entry must be done first before
2419                          * reading any further.
2420                          */
2421                                 dma_rmb();
2422                                 /* If the next hwcqe is a REQ */
2423                                 if ((peek_hwcqe->cqe_type_toggle &
2424                                     CQ_BASE_CQE_TYPE_MASK) ==
2425                                     CQ_BASE_CQE_TYPE_REQ) {
2426                                         peek_req_hwcqe = (struct cq_req *)
2427                                                          peek_hwcqe;
2428                                         peek_qp = (struct bnxt_qplib_qp *)
2429                                                 ((unsigned long)
2430                                                  le64_to_cpu
2431                                                  (peek_req_hwcqe->qp_handle));
2432                                         peek_sq = &peek_qp->sq;
2433                                         peek_sq_cons_idx =
2434                                                 ((le16_to_cpu(
2435                                                   peek_req_hwcqe->sq_cons_idx)
2436                                                   - 1) % sq->max_wqe);
2437                                         /* If the hwcqe's sq's wr_id matches */
2438                                         if (peek_sq == sq &&
2439                                             sq->swq[peek_sq_cons_idx].wr_id ==
2440                                             BNXT_QPLIB_FENCE_WRID) {
2441                                                 /*
2442                                                  *  Unbreak only if the phantom
2443                                                  *  comes back
2444                                                  */
2445                                                 dev_dbg(&cq->hwq.pdev->dev,
2446                                                         "FP: Got Phantom CQE\n");
2447                                                 sq->condition = false;
2448                                                 sq->single = true;
2449                                                 rc = 0;
2450                                                 goto out;
2451                                         }
2452                                 }
2453                                 /* Valid but not the phantom, so keep looping */
2454                         } else {
2455                                 /* Not valid yet, just exit and wait */
2456                                 rc = -EINVAL;
2457                                 goto out;
2458                         }
2459                         bnxt_qplib_hwq_incr_cons(cq->hwq.max_elements,
2460                                                  &peek_sw_cq_cons,
2461                                                  1, &peek_flags);
2462                 }
2463                 dev_err(&cq->hwq.pdev->dev,
2464                         "Should not have come here! cq_cons=0x%x qp=0x%x sq cons sw=0x%x hw=0x%x\n",
2465                         cq_cons, qp->id, swq_last, cqe_sq_cons);
2466                 rc = -EINVAL;
2467         }
2468 out:
2469         return rc;
2470 }
2471
2472 static int bnxt_qplib_cq_process_req(struct bnxt_qplib_cq *cq,
2473                                      struct cq_req *hwcqe,
2474                                      struct bnxt_qplib_cqe **pcqe, int *budget,
2475                                      u32 cq_cons, struct bnxt_qplib_qp **lib_qp)
2476 {
2477         struct bnxt_qplib_swq *swq;
2478         struct bnxt_qplib_cqe *cqe;
2479         struct bnxt_qplib_qp *qp;
2480         struct bnxt_qplib_q *sq;
2481         u32 cqe_sq_cons;
2482         int rc = 0;
2483
2484         qp = (struct bnxt_qplib_qp *)((unsigned long)
2485                                       le64_to_cpu(hwcqe->qp_handle));
2486         if (!qp) {
2487                 dev_err(&cq->hwq.pdev->dev,
2488                         "FP: Process Req qp is NULL\n");
2489                 return -EINVAL;
2490         }
2491         sq = &qp->sq;
2492
2493         cqe_sq_cons = le16_to_cpu(hwcqe->sq_cons_idx) % sq->max_wqe;
2494         if (qp->sq.flushed) {
2495                 dev_dbg(&cq->hwq.pdev->dev,
2496                         "%s: QP in Flush QP = %p\n", __func__, qp);
2497                 goto done;
2498         }
2499         /* Require to walk the sq's swq to fabricate CQEs for all previously
2500          * signaled SWQEs due to CQE aggregation from the current sq cons
2501          * to the cqe_sq_cons
2502          */
2503         cqe = *pcqe;
2504         while (*budget) {
2505                 if (sq->swq_last == cqe_sq_cons)
2506                         /* Done */
2507                         break;
2508
2509                 swq = &sq->swq[sq->swq_last];
2510                 memset(cqe, 0, sizeof(*cqe));
2511                 cqe->opcode = CQ_BASE_CQE_TYPE_REQ;
2512                 cqe->qp_handle = (u64)(unsigned long)qp;
2513                 cqe->src_qp = qp->id;
2514                 cqe->wr_id = swq->wr_id;
2515                 if (cqe->wr_id == BNXT_QPLIB_FENCE_WRID)
2516                         goto skip;
2517                 cqe->type = swq->type;
2518
2519                 /* For the last CQE, check for status.  For errors, regardless
2520                  * of the request being signaled or not, it must complete with
2521                  * the hwcqe error status
2522                  */
2523                 if (swq->next_idx == cqe_sq_cons &&
2524                     hwcqe->status != CQ_REQ_STATUS_OK) {
2525                         cqe->status = hwcqe->status;
2526                         dev_err(&cq->hwq.pdev->dev,
2527                                 "FP: CQ Processed Req wr_id[%d] = 0x%llx with status 0x%x\n",
2528                                 sq->swq_last, cqe->wr_id, cqe->status);
2529                         cqe++;
2530                         (*budget)--;
2531                         bnxt_qplib_mark_qp_error(qp);
2532                         /* Add qp to flush list of the CQ */
2533                         bnxt_qplib_add_flush_qp(qp);
2534                 } else {
2535                         /* Before we complete, do WA 9060 */
2536                         if (do_wa9060(qp, cq, cq_cons, sq->swq_last,
2537                                       cqe_sq_cons)) {
2538                                 *lib_qp = qp;
2539                                 goto out;
2540                         }
2541                         if (swq->flags & SQ_SEND_FLAGS_SIGNAL_COMP) {
2542                                 cqe->status = CQ_REQ_STATUS_OK;
2543                                 cqe++;
2544                                 (*budget)--;
2545                         }
2546                 }
2547 skip:
2548                 bnxt_qplib_hwq_incr_cons(sq->hwq.max_elements, &sq->hwq.cons,
2549                                          swq->slots, &sq->dbinfo.flags);
2550                 sq->swq_last = swq->next_idx;
2551                 if (sq->single)
2552                         break;
2553         }
2554 out:
2555         *pcqe = cqe;
2556         if (sq->swq_last != cqe_sq_cons) {
2557                 /* Out of budget */
2558                 rc = -EAGAIN;
2559                 goto done;
2560         }
2561         /*
2562          * Back to normal completion mode only after it has completed all of
2563          * the WC for this CQE
2564          */
2565         sq->single = false;
2566 done:
2567         return rc;
2568 }
2569
2570 static void bnxt_qplib_release_srqe(struct bnxt_qplib_srq *srq, u32 tag)
2571 {
2572         spin_lock(&srq->hwq.lock);
2573         srq->swq[srq->last_idx].next_idx = (int)tag;
2574         srq->last_idx = (int)tag;
2575         srq->swq[srq->last_idx].next_idx = -1;
2576         bnxt_qplib_hwq_incr_cons(srq->hwq.max_elements, &srq->hwq.cons,
2577                                  srq->dbinfo.max_slot, &srq->dbinfo.flags);
2578         spin_unlock(&srq->hwq.lock);
2579 }
2580
2581 static int bnxt_qplib_cq_process_res_rc(struct bnxt_qplib_cq *cq,
2582                                         struct cq_res_rc *hwcqe,
2583                                         struct bnxt_qplib_cqe **pcqe,
2584                                         int *budget)
2585 {
2586         struct bnxt_qplib_srq *srq;
2587         struct bnxt_qplib_cqe *cqe;
2588         struct bnxt_qplib_qp *qp;
2589         struct bnxt_qplib_q *rq;
2590         u32 wr_id_idx;
2591
2592         qp = (struct bnxt_qplib_qp *)((unsigned long)
2593                                       le64_to_cpu(hwcqe->qp_handle));
2594         if (!qp) {
2595                 dev_err(&cq->hwq.pdev->dev, "process_cq RC qp is NULL\n");
2596                 return -EINVAL;
2597         }
2598         if (qp->rq.flushed) {
2599                 dev_dbg(&cq->hwq.pdev->dev,
2600                         "%s: QP in Flush QP = %p\n", __func__, qp);
2601                 return 0;
2602         }
2603
2604         cqe = *pcqe;
2605         cqe->opcode = hwcqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK;
2606         cqe->length = le32_to_cpu(hwcqe->length);
2607         cqe->invrkey = le32_to_cpu(hwcqe->imm_data_or_inv_r_key);
2608         cqe->mr_handle = le64_to_cpu(hwcqe->mr_handle);
2609         cqe->flags = le16_to_cpu(hwcqe->flags);
2610         cqe->status = hwcqe->status;
2611         cqe->qp_handle = (u64)(unsigned long)qp;
2612
2613         wr_id_idx = le32_to_cpu(hwcqe->srq_or_rq_wr_id) &
2614                                 CQ_RES_RC_SRQ_OR_RQ_WR_ID_MASK;
2615         if (cqe->flags & CQ_RES_RC_FLAGS_SRQ_SRQ) {
2616                 srq = qp->srq;
2617                 if (!srq)
2618                         return -EINVAL;
2619                 if (wr_id_idx >= srq->hwq.max_elements) {
2620                         dev_err(&cq->hwq.pdev->dev,
2621                                 "FP: CQ Process RC wr_id idx 0x%x exceeded SRQ max 0x%x\n",
2622                                 wr_id_idx, srq->hwq.max_elements);
2623                         return -EINVAL;
2624                 }
2625                 cqe->wr_id = srq->swq[wr_id_idx].wr_id;
2626                 bnxt_qplib_release_srqe(srq, wr_id_idx);
2627                 cqe++;
2628                 (*budget)--;
2629                 *pcqe = cqe;
2630         } else {
2631                 struct bnxt_qplib_swq *swq;
2632
2633                 rq = &qp->rq;
2634                 if (wr_id_idx > (rq->max_wqe - 1)) {
2635                         dev_err(&cq->hwq.pdev->dev,
2636                                 "FP: CQ Process RC wr_id idx 0x%x exceeded RQ max 0x%x\n",
2637                                 wr_id_idx, rq->max_wqe);
2638                         return -EINVAL;
2639                 }
2640                 if (wr_id_idx != rq->swq_last)
2641                         return -EINVAL;
2642                 swq = &rq->swq[rq->swq_last];
2643                 cqe->wr_id = swq->wr_id;
2644                 cqe++;
2645                 (*budget)--;
2646                 bnxt_qplib_hwq_incr_cons(rq->hwq.max_elements, &rq->hwq.cons,
2647                                          swq->slots, &rq->dbinfo.flags);
2648                 rq->swq_last = swq->next_idx;
2649                 *pcqe = cqe;
2650
2651                 if (hwcqe->status != CQ_RES_RC_STATUS_OK) {
2652                         qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
2653                         /* Add qp to flush list of the CQ */
2654                         bnxt_qplib_add_flush_qp(qp);
2655                 }
2656         }
2657
2658         return 0;
2659 }
2660
2661 static int bnxt_qplib_cq_process_res_ud(struct bnxt_qplib_cq *cq,
2662                                         struct cq_res_ud *hwcqe,
2663                                         struct bnxt_qplib_cqe **pcqe,
2664                                         int *budget)
2665 {
2666         struct bnxt_qplib_srq *srq;
2667         struct bnxt_qplib_cqe *cqe;
2668         struct bnxt_qplib_qp *qp;
2669         struct bnxt_qplib_q *rq;
2670         u32 wr_id_idx;
2671
2672         qp = (struct bnxt_qplib_qp *)((unsigned long)
2673                                       le64_to_cpu(hwcqe->qp_handle));
2674         if (!qp) {
2675                 dev_err(&cq->hwq.pdev->dev, "process_cq UD qp is NULL\n");
2676                 return -EINVAL;
2677         }
2678         if (qp->rq.flushed) {
2679                 dev_dbg(&cq->hwq.pdev->dev,
2680                         "%s: QP in Flush QP = %p\n", __func__, qp);
2681                 return 0;
2682         }
2683         cqe = *pcqe;
2684         cqe->opcode = hwcqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK;
2685         cqe->length = le16_to_cpu(hwcqe->length) & CQ_RES_UD_LENGTH_MASK;
2686         cqe->cfa_meta = le16_to_cpu(hwcqe->cfa_metadata);
2687         cqe->invrkey = le32_to_cpu(hwcqe->imm_data);
2688         cqe->flags = le16_to_cpu(hwcqe->flags);
2689         cqe->status = hwcqe->status;
2690         cqe->qp_handle = (u64)(unsigned long)qp;
2691         /*FIXME: Endianness fix needed for smace */
2692         memcpy(cqe->smac, hwcqe->src_mac, ETH_ALEN);
2693         wr_id_idx = le32_to_cpu(hwcqe->src_qp_high_srq_or_rq_wr_id)
2694                                 & CQ_RES_UD_SRQ_OR_RQ_WR_ID_MASK;
2695         cqe->src_qp = le16_to_cpu(hwcqe->src_qp_low) |
2696                                   ((le32_to_cpu(
2697                                   hwcqe->src_qp_high_srq_or_rq_wr_id) &
2698                                  CQ_RES_UD_SRC_QP_HIGH_MASK) >> 8);
2699
2700         if (cqe->flags & CQ_RES_RC_FLAGS_SRQ_SRQ) {
2701                 srq = qp->srq;
2702                 if (!srq)
2703                         return -EINVAL;
2704
2705                 if (wr_id_idx >= srq->hwq.max_elements) {
2706                         dev_err(&cq->hwq.pdev->dev,
2707                                 "FP: CQ Process UD wr_id idx 0x%x exceeded SRQ max 0x%x\n",
2708                                 wr_id_idx, srq->hwq.max_elements);
2709                         return -EINVAL;
2710                 }
2711                 cqe->wr_id = srq->swq[wr_id_idx].wr_id;
2712                 bnxt_qplib_release_srqe(srq, wr_id_idx);
2713                 cqe++;
2714                 (*budget)--;
2715                 *pcqe = cqe;
2716         } else {
2717                 struct bnxt_qplib_swq *swq;
2718
2719                 rq = &qp->rq;
2720                 if (wr_id_idx > (rq->max_wqe - 1)) {
2721                         dev_err(&cq->hwq.pdev->dev,
2722                                 "FP: CQ Process UD wr_id idx 0x%x exceeded RQ max 0x%x\n",
2723                                 wr_id_idx, rq->max_wqe);
2724                         return -EINVAL;
2725                 }
2726
2727                 if (rq->swq_last != wr_id_idx)
2728                         return -EINVAL;
2729                 swq = &rq->swq[rq->swq_last];
2730                 cqe->wr_id = swq->wr_id;
2731                 cqe++;
2732                 (*budget)--;
2733                 bnxt_qplib_hwq_incr_cons(rq->hwq.max_elements, &rq->hwq.cons,
2734                                          swq->slots, &rq->dbinfo.flags);
2735                 rq->swq_last = swq->next_idx;
2736                 *pcqe = cqe;
2737
2738                 if (hwcqe->status != CQ_RES_RC_STATUS_OK) {
2739                         qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
2740                         /* Add qp to flush list of the CQ */
2741                         bnxt_qplib_add_flush_qp(qp);
2742                 }
2743         }
2744
2745         return 0;
2746 }
2747
2748 bool bnxt_qplib_is_cq_empty(struct bnxt_qplib_cq *cq)
2749 {
2750         struct cq_base *hw_cqe;
2751         bool rc = true;
2752
2753         hw_cqe = bnxt_qplib_get_qe(&cq->hwq, cq->hwq.cons, NULL);
2754          /* Check for Valid bit. If the CQE is valid, return false */
2755         rc = !CQE_CMP_VALID(hw_cqe, cq->dbinfo.flags);
2756         return rc;
2757 }
2758
2759 static int bnxt_qplib_cq_process_res_raweth_qp1(struct bnxt_qplib_cq *cq,
2760                                                 struct cq_res_raweth_qp1 *hwcqe,
2761                                                 struct bnxt_qplib_cqe **pcqe,
2762                                                 int *budget)
2763 {
2764         struct bnxt_qplib_qp *qp;
2765         struct bnxt_qplib_q *rq;
2766         struct bnxt_qplib_srq *srq;
2767         struct bnxt_qplib_cqe *cqe;
2768         u32 wr_id_idx;
2769
2770         qp = (struct bnxt_qplib_qp *)((unsigned long)
2771                                       le64_to_cpu(hwcqe->qp_handle));
2772         if (!qp) {
2773                 dev_err(&cq->hwq.pdev->dev, "process_cq Raw/QP1 qp is NULL\n");
2774                 return -EINVAL;
2775         }
2776         if (qp->rq.flushed) {
2777                 dev_dbg(&cq->hwq.pdev->dev,
2778                         "%s: QP in Flush QP = %p\n", __func__, qp);
2779                 return 0;
2780         }
2781         cqe = *pcqe;
2782         cqe->opcode = hwcqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK;
2783         cqe->flags = le16_to_cpu(hwcqe->flags);
2784         cqe->qp_handle = (u64)(unsigned long)qp;
2785
2786         wr_id_idx =
2787                 le32_to_cpu(hwcqe->raweth_qp1_payload_offset_srq_or_rq_wr_id)
2788                                 & CQ_RES_RAWETH_QP1_SRQ_OR_RQ_WR_ID_MASK;
2789         cqe->src_qp = qp->id;
2790         if (qp->id == 1 && !cqe->length) {
2791                 /* Add workaround for the length misdetection */
2792                 cqe->length = 296;
2793         } else {
2794                 cqe->length = le16_to_cpu(hwcqe->length);
2795         }
2796         cqe->pkey_index = qp->pkey_index;
2797         memcpy(cqe->smac, qp->smac, 6);
2798
2799         cqe->raweth_qp1_flags = le16_to_cpu(hwcqe->raweth_qp1_flags);
2800         cqe->raweth_qp1_flags2 = le32_to_cpu(hwcqe->raweth_qp1_flags2);
2801         cqe->raweth_qp1_metadata = le32_to_cpu(hwcqe->raweth_qp1_metadata);
2802
2803         if (cqe->flags & CQ_RES_RAWETH_QP1_FLAGS_SRQ_SRQ) {
2804                 srq = qp->srq;
2805                 if (!srq) {
2806                         dev_err(&cq->hwq.pdev->dev,
2807                                 "FP: SRQ used but not defined??\n");
2808                         return -EINVAL;
2809                 }
2810                 if (wr_id_idx >= srq->hwq.max_elements) {
2811                         dev_err(&cq->hwq.pdev->dev,
2812                                 "FP: CQ Process Raw/QP1 wr_id idx 0x%x exceeded SRQ max 0x%x\n",
2813                                 wr_id_idx, srq->hwq.max_elements);
2814                         return -EINVAL;
2815                 }
2816                 cqe->wr_id = srq->swq[wr_id_idx].wr_id;
2817                 bnxt_qplib_release_srqe(srq, wr_id_idx);
2818                 cqe++;
2819                 (*budget)--;
2820                 *pcqe = cqe;
2821         } else {
2822                 struct bnxt_qplib_swq *swq;
2823
2824                 rq = &qp->rq;
2825                 if (wr_id_idx > (rq->max_wqe - 1)) {
2826                         dev_err(&cq->hwq.pdev->dev,
2827                                 "FP: CQ Process Raw/QP1 RQ wr_id idx 0x%x exceeded RQ max 0x%x\n",
2828                                 wr_id_idx, rq->max_wqe);
2829                         return -EINVAL;
2830                 }
2831                 if (rq->swq_last != wr_id_idx)
2832                         return -EINVAL;
2833                 swq = &rq->swq[rq->swq_last];
2834                 cqe->wr_id = swq->wr_id;
2835                 cqe++;
2836                 (*budget)--;
2837                 bnxt_qplib_hwq_incr_cons(rq->hwq.max_elements, &rq->hwq.cons,
2838                                          swq->slots, &rq->dbinfo.flags);
2839                 rq->swq_last = swq->next_idx;
2840                 *pcqe = cqe;
2841
2842                 if (hwcqe->status != CQ_RES_RC_STATUS_OK) {
2843                         qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
2844                         /* Add qp to flush list of the CQ */
2845                         bnxt_qplib_add_flush_qp(qp);
2846                 }
2847         }
2848
2849         return 0;
2850 }
2851
2852 static int bnxt_qplib_cq_process_terminal(struct bnxt_qplib_cq *cq,
2853                                           struct cq_terminal *hwcqe,
2854                                           struct bnxt_qplib_cqe **pcqe,
2855                                           int *budget)
2856 {
2857         struct bnxt_qplib_qp *qp;
2858         struct bnxt_qplib_q *sq, *rq;
2859         struct bnxt_qplib_cqe *cqe;
2860         u32 swq_last = 0, cqe_cons;
2861         int rc = 0;
2862
2863         /* Check the Status */
2864         if (hwcqe->status != CQ_TERMINAL_STATUS_OK)
2865                 dev_warn(&cq->hwq.pdev->dev,
2866                          "FP: CQ Process Terminal Error status = 0x%x\n",
2867                          hwcqe->status);
2868
2869         qp = (struct bnxt_qplib_qp *)((unsigned long)
2870                                       le64_to_cpu(hwcqe->qp_handle));
2871         if (!qp)
2872                 return -EINVAL;
2873
2874         /* Must block new posting of SQ and RQ */
2875         qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
2876
2877         sq = &qp->sq;
2878         rq = &qp->rq;
2879
2880         cqe_cons = le16_to_cpu(hwcqe->sq_cons_idx);
2881         if (cqe_cons == 0xFFFF)
2882                 goto do_rq;
2883         cqe_cons %= sq->max_wqe;
2884
2885         if (qp->sq.flushed) {
2886                 dev_dbg(&cq->hwq.pdev->dev,
2887                         "%s: QP in Flush QP = %p\n", __func__, qp);
2888                 goto sq_done;
2889         }
2890
2891         /* Terminal CQE can also include aggregated successful CQEs prior.
2892          * So we must complete all CQEs from the current sq's cons to the
2893          * cq_cons with status OK
2894          */
2895         cqe = *pcqe;
2896         while (*budget) {
2897                 swq_last = sq->swq_last;
2898                 if (swq_last == cqe_cons)
2899                         break;
2900                 if (sq->swq[swq_last].flags & SQ_SEND_FLAGS_SIGNAL_COMP) {
2901                         memset(cqe, 0, sizeof(*cqe));
2902                         cqe->status = CQ_REQ_STATUS_OK;
2903                         cqe->opcode = CQ_BASE_CQE_TYPE_REQ;
2904                         cqe->qp_handle = (u64)(unsigned long)qp;
2905                         cqe->src_qp = qp->id;
2906                         cqe->wr_id = sq->swq[swq_last].wr_id;
2907                         cqe->type = sq->swq[swq_last].type;
2908                         cqe++;
2909                         (*budget)--;
2910                 }
2911                 bnxt_qplib_hwq_incr_cons(sq->hwq.max_elements, &sq->hwq.cons,
2912                                          sq->swq[swq_last].slots, &sq->dbinfo.flags);
2913                 sq->swq_last = sq->swq[swq_last].next_idx;
2914         }
2915         *pcqe = cqe;
2916         if (!(*budget) && swq_last != cqe_cons) {
2917                 /* Out of budget */
2918                 rc = -EAGAIN;
2919                 goto sq_done;
2920         }
2921 sq_done:
2922         if (rc)
2923                 return rc;
2924 do_rq:
2925         cqe_cons = le16_to_cpu(hwcqe->rq_cons_idx);
2926         if (cqe_cons == 0xFFFF) {
2927                 goto done;
2928         } else if (cqe_cons > rq->max_wqe - 1) {
2929                 dev_err(&cq->hwq.pdev->dev,
2930                         "FP: CQ Processed terminal reported rq_cons_idx 0x%x exceeds max 0x%x\n",
2931                         cqe_cons, rq->max_wqe);
2932                 rc = -EINVAL;
2933                 goto done;
2934         }
2935
2936         if (qp->rq.flushed) {
2937                 dev_dbg(&cq->hwq.pdev->dev,
2938                         "%s: QP in Flush QP = %p\n", __func__, qp);
2939                 rc = 0;
2940                 goto done;
2941         }
2942
2943         /* Terminal CQE requires all posted RQEs to complete with FLUSHED_ERR
2944          * from the current rq->cons to the rq->prod regardless what the
2945          * rq->cons the terminal CQE indicates
2946          */
2947
2948         /* Add qp to flush list of the CQ */
2949         bnxt_qplib_add_flush_qp(qp);
2950 done:
2951         return rc;
2952 }
2953
2954 static int bnxt_qplib_cq_process_cutoff(struct bnxt_qplib_cq *cq,
2955                                         struct cq_cutoff *hwcqe)
2956 {
2957         /* Check the Status */
2958         if (hwcqe->status != CQ_CUTOFF_STATUS_OK) {
2959                 dev_err(&cq->hwq.pdev->dev,
2960                         "FP: CQ Process Cutoff Error status = 0x%x\n",
2961                         hwcqe->status);
2962                 return -EINVAL;
2963         }
2964         clear_bit(CQ_FLAGS_RESIZE_IN_PROG, &cq->flags);
2965         wake_up_interruptible(&cq->waitq);
2966
2967         return 0;
2968 }
2969
2970 int bnxt_qplib_process_flush_list(struct bnxt_qplib_cq *cq,
2971                                   struct bnxt_qplib_cqe *cqe,
2972                                   int num_cqes)
2973 {
2974         struct bnxt_qplib_qp *qp = NULL;
2975         u32 budget = num_cqes;
2976         unsigned long flags;
2977
2978         spin_lock_irqsave(&cq->flush_lock, flags);
2979         list_for_each_entry(qp, &cq->sqf_head, sq_flush) {
2980                 dev_dbg(&cq->hwq.pdev->dev, "FP: Flushing SQ QP= %p\n", qp);
2981                 __flush_sq(&qp->sq, qp, &cqe, &budget);
2982         }
2983
2984         list_for_each_entry(qp, &cq->rqf_head, rq_flush) {
2985                 dev_dbg(&cq->hwq.pdev->dev, "FP: Flushing RQ QP= %p\n", qp);
2986                 __flush_rq(&qp->rq, qp, &cqe, &budget);
2987         }
2988         spin_unlock_irqrestore(&cq->flush_lock, flags);
2989
2990         return num_cqes - budget;
2991 }
2992
2993 int bnxt_qplib_poll_cq(struct bnxt_qplib_cq *cq, struct bnxt_qplib_cqe *cqe,
2994                        int num_cqes, struct bnxt_qplib_qp **lib_qp)
2995 {
2996         struct cq_base *hw_cqe;
2997         int budget, rc = 0;
2998         u32 hw_polled = 0;
2999         u8 type;
3000
3001         budget = num_cqes;
3002
3003         while (budget) {
3004                 hw_cqe = bnxt_qplib_get_qe(&cq->hwq, cq->hwq.cons, NULL);
3005
3006                 /* Check for Valid bit */
3007                 if (!CQE_CMP_VALID(hw_cqe, cq->dbinfo.flags))
3008                         break;
3009
3010                 /*
3011                  * The valid test of the entry must be done first before
3012                  * reading any further.
3013                  */
3014                 dma_rmb();
3015                 /* From the device's respective CQE format to qplib_wc*/
3016                 type = hw_cqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK;
3017                 switch (type) {
3018                 case CQ_BASE_CQE_TYPE_REQ:
3019                         rc = bnxt_qplib_cq_process_req(cq,
3020                                                        (struct cq_req *)hw_cqe,
3021                                                        &cqe, &budget,
3022                                                        cq->hwq.cons, lib_qp);
3023                         break;
3024                 case CQ_BASE_CQE_TYPE_RES_RC:
3025                         rc = bnxt_qplib_cq_process_res_rc(cq,
3026                                                           (struct cq_res_rc *)
3027                                                           hw_cqe, &cqe,
3028                                                           &budget);
3029                         break;
3030                 case CQ_BASE_CQE_TYPE_RES_UD:
3031                         rc = bnxt_qplib_cq_process_res_ud
3032                                         (cq, (struct cq_res_ud *)hw_cqe, &cqe,
3033                                          &budget);
3034                         break;
3035                 case CQ_BASE_CQE_TYPE_RES_RAWETH_QP1:
3036                         rc = bnxt_qplib_cq_process_res_raweth_qp1
3037                                         (cq, (struct cq_res_raweth_qp1 *)
3038                                          hw_cqe, &cqe, &budget);
3039                         break;
3040                 case CQ_BASE_CQE_TYPE_TERMINAL:
3041                         rc = bnxt_qplib_cq_process_terminal
3042                                         (cq, (struct cq_terminal *)hw_cqe,
3043                                          &cqe, &budget);
3044                         break;
3045                 case CQ_BASE_CQE_TYPE_CUT_OFF:
3046                         bnxt_qplib_cq_process_cutoff
3047                                         (cq, (struct cq_cutoff *)hw_cqe);
3048                         /* Done processing this CQ */
3049                         goto exit;
3050                 default:
3051                         dev_err(&cq->hwq.pdev->dev,
3052                                 "process_cq unknown type 0x%lx\n",
3053                                 hw_cqe->cqe_type_toggle &
3054                                 CQ_BASE_CQE_TYPE_MASK);
3055                         rc = -EINVAL;
3056                         break;
3057                 }
3058                 if (rc < 0) {
3059                         if (rc == -EAGAIN)
3060                                 break;
3061                         /* Error while processing the CQE, just skip to the
3062                          * next one
3063                          */
3064                         if (type != CQ_BASE_CQE_TYPE_TERMINAL)
3065                                 dev_err(&cq->hwq.pdev->dev,
3066                                         "process_cqe error rc = 0x%x\n", rc);
3067                 }
3068                 hw_polled++;
3069                 bnxt_qplib_hwq_incr_cons(cq->hwq.max_elements, &cq->hwq.cons,
3070                                          1, &cq->dbinfo.flags);
3071
3072         }
3073         if (hw_polled)
3074                 bnxt_qplib_ring_db(&cq->dbinfo, DBC_DBC_TYPE_CQ);
3075 exit:
3076         return num_cqes - budget;
3077 }
3078
3079 void bnxt_qplib_req_notify_cq(struct bnxt_qplib_cq *cq, u32 arm_type)
3080 {
3081         cq->dbinfo.toggle = cq->toggle;
3082         if (arm_type)
3083                 bnxt_qplib_ring_db(&cq->dbinfo, arm_type);
3084         /* Using cq->arm_state variable to track whether to issue cq handler */
3085         atomic_set(&cq->arm_state, 1);
3086 }
3087
3088 void bnxt_qplib_flush_cqn_wq(struct bnxt_qplib_qp *qp)
3089 {
3090         flush_workqueue(qp->scq->nq->cqn_wq);
3091         if (qp->scq != qp->rcq)
3092                 flush_workqueue(qp->rcq->nq->cqn_wq);
3093 }