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         if (!rc)
 748                 srq->threshold = le16_to_cpu(sb->srq_limit);
 749         dma_free_coherent(&rcfw->pdev->dev, sbuf.size,
 750                           sbuf.sb, sbuf.dma_addr);
 751
 752         return rc;
 753 }
 754
 755 int bnxt_qplib_post_srq_recv(struct bnxt_qplib_srq *srq,
 756                              struct bnxt_qplib_swqe *wqe)
 757 {
 758         struct bnxt_qplib_hwq *srq_hwq = &srq->hwq;
 759         struct rq_wqe *srqe;
 760         struct sq_sge *hw_sge;
 761         u32 count = 0;
 762         int i, next;
 763
 764         spin_lock(&srq_hwq->lock);
 765         if (srq->start_idx == srq->last_idx) {
 766                 dev_err(&srq_hwq->pdev->dev,
 767                         "FP: SRQ (0x%x) is full!\n", srq->id);
 768                 spin_unlock(&srq_hwq->lock);
 769                 return -EINVAL;
 770         }
 771         next = srq->start_idx;
 772         srq->start_idx = srq->swq[next].next_idx;
 773         spin_unlock(&srq_hwq->lock);
 774
 775         srqe = bnxt_qplib_get_qe(srq_hwq, srq_hwq->prod, NULL);
 776         memset(srqe, 0, srq->wqe_size);
 777         /* Calculate wqe_size16 and data_len */
 778         for (i = 0, hw_sge = (struct sq_sge *)srqe->data;
 779              i < wqe->num_sge; i++, hw_sge++) {
 780                 hw_sge->va_or_pa = cpu_to_le64(wqe->sg_list[i].addr);
 781                 hw_sge->l_key = cpu_to_le32(wqe->sg_list[i].lkey);
 782                 hw_sge->size = cpu_to_le32(wqe->sg_list[i].size);
 783         }
 784         srqe->wqe_type = wqe->type;
 785         srqe->flags = wqe->flags;
 786         srqe->wqe_size = wqe->num_sge +
 787                         ((offsetof(typeof(*srqe), data) + 15) >> 4);
 788         srqe->wr_id[0] = cpu_to_le32((u32)next);
 789         srq->swq[next].wr_id = wqe->wr_id;
 790
 791         bnxt_qplib_hwq_incr_prod(&srq->dbinfo, srq_hwq, srq->dbinfo.max_slot);
 792
 793         spin_lock(&srq_hwq->lock);
 794         count = __bnxt_qplib_get_avail(srq_hwq);
 795         spin_unlock(&srq_hwq->lock);
 796         /* Ring DB */
 797         bnxt_qplib_ring_prod_db(&srq->dbinfo, DBC_DBC_TYPE_SRQ);
 798         if (srq->arm_req == true && count > srq->threshold) {
 799                 srq->arm_req = false;
 800                 bnxt_qplib_srq_arm_db(&srq->dbinfo, srq->threshold);
 801         }
 802
 803         return 0;
 804 }
 805
 806 /* QP */
 807
 808 static int bnxt_qplib_alloc_init_swq(struct bnxt_qplib_q *que)
 809 {
 810         int indx;
 811
 812         que->swq = kcalloc(que->max_wqe, sizeof(*que->swq), GFP_KERNEL);
 813         if (!que->swq)
 814                 return -ENOMEM;
 815
 816         que->swq_start = 0;
 817         que->swq_last = que->max_wqe - 1;
 818         for (indx = 0; indx < que->max_wqe; indx++)
 819                 que->swq[indx].next_idx = indx + 1;
 820         que->swq[que->swq_last].next_idx = 0; /* Make it circular */
 821         que->swq_last = 0;
 822
 823         return 0;
 824 }
 825
 826 int bnxt_qplib_create_qp1(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
 827 {
 828         struct bnxt_qplib_hwq_attr hwq_attr = {};
 829         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 830         struct creq_create_qp1_resp resp = {};
 831         struct bnxt_qplib_cmdqmsg msg = {};
 832         struct bnxt_qplib_q *sq = &qp->sq;
 833         struct bnxt_qplib_q *rq = &qp->rq;
 834         struct cmdq_create_qp1 req = {};
 835         struct bnxt_qplib_pbl *pbl;
 836         u32 qp_flags = 0;
 837         u8 pg_sz_lvl;
 838         u32 tbl_indx;
 839         int rc;
 840
 841         sq->dbinfo.flags = 0;
 842         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
 843                                  CMDQ_BASE_OPCODE_CREATE_QP1,
 844                                  sizeof(req));
 845         /* General */
 846         req.type = qp->type;
 847         req.dpi = cpu_to_le32(qp->dpi->dpi);
 848         req.qp_handle = cpu_to_le64(qp->qp_handle);
 849
 850         /* SQ */
 851         hwq_attr.res = res;
 852         hwq_attr.sginfo = &sq->sg_info;
 853         hwq_attr.stride = sizeof(struct sq_sge);
 854         hwq_attr.depth = bnxt_qplib_get_depth(sq);
 855         hwq_attr.type = HWQ_TYPE_QUEUE;
 856         rc = bnxt_qplib_alloc_init_hwq(&sq->hwq, &hwq_attr);
 857         if (rc)
 858                 return rc;
 859
 860         rc = bnxt_qplib_alloc_init_swq(sq);
 861         if (rc)
 862                 goto fail_sq;
 863
 864         req.sq_size = cpu_to_le32(bnxt_qplib_set_sq_size(sq, qp->wqe_mode));
 865         pbl = &sq->hwq.pbl[PBL_LVL_0];
 866         req.sq_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
 867         pg_sz_lvl = (bnxt_qplib_base_pg_size(&sq->hwq) <<
 868                      CMDQ_CREATE_QP1_SQ_PG_SIZE_SFT);
 869         pg_sz_lvl |= (sq->hwq.level & CMDQ_CREATE_QP1_SQ_LVL_MASK);
 870         req.sq_pg_size_sq_lvl = pg_sz_lvl;
 871         req.sq_fwo_sq_sge =
 872                 cpu_to_le16((sq->max_sge & CMDQ_CREATE_QP1_SQ_SGE_MASK) <<
 873                              CMDQ_CREATE_QP1_SQ_SGE_SFT);
 874         req.scq_cid = cpu_to_le32(qp->scq->id);
 875
 876         /* RQ */
 877         if (rq->max_wqe) {
 878                 rq->dbinfo.flags = 0;
 879                 hwq_attr.res = res;
 880                 hwq_attr.sginfo = &rq->sg_info;
 881                 hwq_attr.stride = sizeof(struct sq_sge);
 882                 hwq_attr.depth = bnxt_qplib_get_depth(rq);
 883                 hwq_attr.type = HWQ_TYPE_QUEUE;
 884                 rc = bnxt_qplib_alloc_init_hwq(&rq->hwq, &hwq_attr);
 885                 if (rc)
 886                         goto sq_swq;
 887                 rc = bnxt_qplib_alloc_init_swq(rq);
 888                 if (rc)
 889                         goto fail_rq;
 890                 req.rq_size = cpu_to_le32(rq->max_wqe);
 891                 pbl = &rq->hwq.pbl[PBL_LVL_0];
 892                 req.rq_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
 893                 pg_sz_lvl = (bnxt_qplib_base_pg_size(&rq->hwq) <<
 894                              CMDQ_CREATE_QP1_RQ_PG_SIZE_SFT);
 895                 pg_sz_lvl |= (rq->hwq.level & CMDQ_CREATE_QP1_RQ_LVL_MASK);
 896                 req.rq_pg_size_rq_lvl = pg_sz_lvl;
 897                 req.rq_fwo_rq_sge =
 898                         cpu_to_le16((rq->max_sge &
 899                                      CMDQ_CREATE_QP1_RQ_SGE_MASK) <<
 900                                     CMDQ_CREATE_QP1_RQ_SGE_SFT);
 901         }
 902         req.rcq_cid = cpu_to_le32(qp->rcq->id);
 903         /* Header buffer - allow hdr_buf pass in */
 904         rc = bnxt_qplib_alloc_qp_hdr_buf(res, qp);
 905         if (rc) {
 906                 rc = -ENOMEM;
 907                 goto rq_rwq;
 908         }
 909         qp_flags |= CMDQ_CREATE_QP1_QP_FLAGS_RESERVED_LKEY_ENABLE;
 910         req.qp_flags = cpu_to_le32(qp_flags);
 911         req.pd_id = cpu_to_le32(qp->pd->id);
 912
 913         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req), sizeof(resp), 0);
 914         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
 915         if (rc)
 916                 goto fail;
 917
 918         qp->id = le32_to_cpu(resp.xid);
 919         qp->cur_qp_state = CMDQ_MODIFY_QP_NEW_STATE_RESET;
 920         qp->cctx = res->cctx;
 921         sq->dbinfo.hwq = &sq->hwq;
 922         sq->dbinfo.xid = qp->id;
 923         sq->dbinfo.db = qp->dpi->dbr;
 924         sq->dbinfo.max_slot = bnxt_qplib_set_sq_max_slot(qp->wqe_mode);
 925         if (rq->max_wqe) {
 926                 rq->dbinfo.hwq = &rq->hwq;
 927                 rq->dbinfo.xid = qp->id;
 928                 rq->dbinfo.db = qp->dpi->dbr;
 929                 rq->dbinfo.max_slot = bnxt_qplib_set_rq_max_slot(rq->wqe_size);
 930         }
 931         tbl_indx = map_qp_id_to_tbl_indx(qp->id, rcfw);
 932         rcfw->qp_tbl[tbl_indx].qp_id = qp->id;
 933         rcfw->qp_tbl[tbl_indx].qp_handle = (void *)qp;
 934
 935         return 0;
 936
 937 fail:
 938         bnxt_qplib_free_qp_hdr_buf(res, qp);
 939 rq_rwq:
 940         kfree(rq->swq);
 941 fail_rq:
 942         bnxt_qplib_free_hwq(res, &rq->hwq);
 943 sq_swq:
 944         kfree(sq->swq);
 945 fail_sq:
 946         bnxt_qplib_free_hwq(res, &sq->hwq);
 947         return rc;
 948 }
 949
 950 static void bnxt_qplib_init_psn_ptr(struct bnxt_qplib_qp *qp, int size)
 951 {
 952         struct bnxt_qplib_hwq *hwq;
 953         struct bnxt_qplib_q *sq;
 954         u64 fpsne, psn_pg;
 955         u16 indx_pad = 0;
 956
 957         sq = &qp->sq;
 958         hwq = &sq->hwq;
 959         /* First psn entry */
 960         fpsne = (u64)bnxt_qplib_get_qe(hwq, hwq->depth, &psn_pg);
 961         if (!IS_ALIGNED(fpsne, PAGE_SIZE))
 962                 indx_pad = (fpsne & ~PAGE_MASK) / size;
 963         hwq->pad_pgofft = indx_pad;
 964         hwq->pad_pg = (u64 *)psn_pg;
 965         hwq->pad_stride = size;
 966 }
 967
 968 int bnxt_qplib_create_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
 969 {
 970         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
 971         struct bnxt_qplib_hwq_attr hwq_attr = {};
 972         struct bnxt_qplib_sg_info sginfo = {};
 973         struct creq_create_qp_resp resp = {};
 974         struct bnxt_qplib_cmdqmsg msg = {};
 975         struct bnxt_qplib_q *sq = &qp->sq;
 976         struct bnxt_qplib_q *rq = &qp->rq;
 977         struct cmdq_create_qp req = {};
 978         int rc, req_size, psn_sz = 0;
 979         struct bnxt_qplib_hwq *xrrq;
 980         struct bnxt_qplib_pbl *pbl;
 981         u32 qp_flags = 0;
 982         u8 pg_sz_lvl;
 983         u32 tbl_indx;
 984         u16 nsge;
 985
 986         if (res->dattr)
 987                 qp->is_host_msn_tbl = _is_host_msn_table(res->dattr->dev_cap_flags2);
 988
 989         sq->dbinfo.flags = 0;
 990         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
 991                                  CMDQ_BASE_OPCODE_CREATE_QP,
 992                                  sizeof(req));
 993
 994         /* General */
 995         req.type = qp->type;
 996         req.dpi = cpu_to_le32(qp->dpi->dpi);
 997         req.qp_handle = cpu_to_le64(qp->qp_handle);
 998
 999         /* SQ */
1000         if (qp->type == CMDQ_CREATE_QP_TYPE_RC) {
1001                 psn_sz = bnxt_qplib_is_chip_gen_p5_p7(res->cctx) ?
1002                          sizeof(struct sq_psn_search_ext) :
1003                          sizeof(struct sq_psn_search);
1004
1005                 if (qp->is_host_msn_tbl) {
1006                         psn_sz = sizeof(struct sq_msn_search);
1007                         qp->msn = 0;
1008                 }
1009         }
1010
1011         hwq_attr.res = res;
1012         hwq_attr.sginfo = &sq->sg_info;
1013         hwq_attr.stride = sizeof(struct sq_sge);
1014         hwq_attr.depth = bnxt_qplib_get_depth(sq);
1015         hwq_attr.aux_stride = psn_sz;
1016         hwq_attr.aux_depth = psn_sz ? bnxt_qplib_set_sq_size(sq, qp->wqe_mode)
1017                                     : 0;
1018         /* Update msn tbl size */
1019         if (qp->is_host_msn_tbl && psn_sz) {
1020                 hwq_attr.aux_depth = roundup_pow_of_two(bnxt_qplib_set_sq_size(sq, qp->wqe_mode));
1021                 qp->msn_tbl_sz = hwq_attr.aux_depth;
1022                 qp->msn = 0;
1023         }
1024
1025         hwq_attr.type = HWQ_TYPE_QUEUE;
1026         rc = bnxt_qplib_alloc_init_hwq(&sq->hwq, &hwq_attr);
1027         if (rc)
1028                 return rc;
1029
1030         rc = bnxt_qplib_alloc_init_swq(sq);
1031         if (rc)
1032                 goto fail_sq;
1033
1034         if (psn_sz)
1035                 bnxt_qplib_init_psn_ptr(qp, psn_sz);
1036
1037         req.sq_size = cpu_to_le32(bnxt_qplib_set_sq_size(sq, qp->wqe_mode));
1038         pbl = &sq->hwq.pbl[PBL_LVL_0];
1039         req.sq_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
1040         pg_sz_lvl = (bnxt_qplib_base_pg_size(&sq->hwq) <<
1041                      CMDQ_CREATE_QP_SQ_PG_SIZE_SFT);
1042         pg_sz_lvl |= (sq->hwq.level & CMDQ_CREATE_QP_SQ_LVL_MASK);
1043         req.sq_pg_size_sq_lvl = pg_sz_lvl;
1044         req.sq_fwo_sq_sge =
1045                 cpu_to_le16(((sq->max_sge & CMDQ_CREATE_QP_SQ_SGE_MASK) <<
1046                              CMDQ_CREATE_QP_SQ_SGE_SFT) | 0);
1047         req.scq_cid = cpu_to_le32(qp->scq->id);
1048
1049         /* RQ */
1050         if (!qp->srq) {
1051                 rq->dbinfo.flags = 0;
1052                 hwq_attr.res = res;
1053                 hwq_attr.sginfo = &rq->sg_info;
1054                 hwq_attr.stride = sizeof(struct sq_sge);
1055                 hwq_attr.depth = bnxt_qplib_get_depth(rq);
1056                 hwq_attr.aux_stride = 0;
1057                 hwq_attr.aux_depth = 0;
1058                 hwq_attr.type = HWQ_TYPE_QUEUE;
1059                 rc = bnxt_qplib_alloc_init_hwq(&rq->hwq, &hwq_attr);
1060                 if (rc)
1061                         goto sq_swq;
1062                 rc = bnxt_qplib_alloc_init_swq(rq);
1063                 if (rc)
1064                         goto fail_rq;
1065
1066                 req.rq_size = cpu_to_le32(rq->max_wqe);
1067                 pbl = &rq->hwq.pbl[PBL_LVL_0];
1068                 req.rq_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
1069                 pg_sz_lvl = (bnxt_qplib_base_pg_size(&rq->hwq) <<
1070                              CMDQ_CREATE_QP_RQ_PG_SIZE_SFT);
1071                 pg_sz_lvl |= (rq->hwq.level & CMDQ_CREATE_QP_RQ_LVL_MASK);
1072                 req.rq_pg_size_rq_lvl = pg_sz_lvl;
1073                 nsge = (qp->wqe_mode == BNXT_QPLIB_WQE_MODE_STATIC) ?
1074                         6 : rq->max_sge;
1075                 req.rq_fwo_rq_sge =
1076                         cpu_to_le16(((nsge &
1077                                       CMDQ_CREATE_QP_RQ_SGE_MASK) <<
1078                                      CMDQ_CREATE_QP_RQ_SGE_SFT) | 0);
1079         } else {
1080                 /* SRQ */
1081                 qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_SRQ_USED;
1082                 req.srq_cid = cpu_to_le32(qp->srq->id);
1083         }
1084         req.rcq_cid = cpu_to_le32(qp->rcq->id);
1085
1086         qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_RESERVED_LKEY_ENABLE;
1087         qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_FR_PMR_ENABLED;
1088         if (qp->sig_type)
1089                 qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_FORCE_COMPLETION;
1090         if (qp->wqe_mode == BNXT_QPLIB_WQE_MODE_VARIABLE)
1091                 qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_VARIABLE_SIZED_WQE_ENABLED;
1092         if (_is_ext_stats_supported(res->dattr->dev_cap_flags) && !res->is_vf)
1093                 qp_flags |= CMDQ_CREATE_QP_QP_FLAGS_EXT_STATS_ENABLED;
1094
1095         req.qp_flags = cpu_to_le32(qp_flags);
1096
1097         /* ORRQ and IRRQ */
1098         if (psn_sz) {
1099                 xrrq = &qp->orrq;
1100                 xrrq->max_elements =
1101                         ORD_LIMIT_TO_ORRQ_SLOTS(qp->max_rd_atomic);
1102                 req_size = xrrq->max_elements *
1103                            BNXT_QPLIB_MAX_ORRQE_ENTRY_SIZE + PAGE_SIZE - 1;
1104                 req_size &= ~(PAGE_SIZE - 1);
1105                 sginfo.pgsize = req_size;
1106                 sginfo.pgshft = PAGE_SHIFT;
1107
1108                 hwq_attr.res = res;
1109                 hwq_attr.sginfo = &sginfo;
1110                 hwq_attr.depth = xrrq->max_elements;
1111                 hwq_attr.stride = BNXT_QPLIB_MAX_ORRQE_ENTRY_SIZE;
1112                 hwq_attr.aux_stride = 0;
1113                 hwq_attr.aux_depth = 0;
1114                 hwq_attr.type = HWQ_TYPE_CTX;
1115                 rc = bnxt_qplib_alloc_init_hwq(xrrq, &hwq_attr);
1116                 if (rc)
1117                         goto rq_swq;
1118                 pbl = &xrrq->pbl[PBL_LVL_0];
1119                 req.orrq_addr = cpu_to_le64(pbl->pg_map_arr[0]);
1120
1121                 xrrq = &qp->irrq;
1122                 xrrq->max_elements = IRD_LIMIT_TO_IRRQ_SLOTS(
1123                                                 qp->max_dest_rd_atomic);
1124                 req_size = xrrq->max_elements *
1125                            BNXT_QPLIB_MAX_IRRQE_ENTRY_SIZE + PAGE_SIZE - 1;
1126                 req_size &= ~(PAGE_SIZE - 1);
1127                 sginfo.pgsize = req_size;
1128                 hwq_attr.depth =  xrrq->max_elements;
1129                 hwq_attr.stride = BNXT_QPLIB_MAX_IRRQE_ENTRY_SIZE;
1130                 rc = bnxt_qplib_alloc_init_hwq(xrrq, &hwq_attr);
1131                 if (rc)
1132                         goto fail_orrq;
1133
1134                 pbl = &xrrq->pbl[PBL_LVL_0];
1135                 req.irrq_addr = cpu_to_le64(pbl->pg_map_arr[0]);
1136         }
1137         req.pd_id = cpu_to_le32(qp->pd->id);
1138
1139         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
1140                                 sizeof(resp), 0);
1141         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
1142         if (rc)
1143                 goto fail;
1144
1145         qp->id = le32_to_cpu(resp.xid);
1146         qp->cur_qp_state = CMDQ_MODIFY_QP_NEW_STATE_RESET;
1147         INIT_LIST_HEAD(&qp->sq_flush);
1148         INIT_LIST_HEAD(&qp->rq_flush);
1149         qp->cctx = res->cctx;
1150         sq->dbinfo.hwq = &sq->hwq;
1151         sq->dbinfo.xid = qp->id;
1152         sq->dbinfo.db = qp->dpi->dbr;
1153         sq->dbinfo.max_slot = bnxt_qplib_set_sq_max_slot(qp->wqe_mode);
1154         if (rq->max_wqe) {
1155                 rq->dbinfo.hwq = &rq->hwq;
1156                 rq->dbinfo.xid = qp->id;
1157                 rq->dbinfo.db = qp->dpi->dbr;
1158                 rq->dbinfo.max_slot = bnxt_qplib_set_rq_max_slot(rq->wqe_size);
1159         }
1160         tbl_indx = map_qp_id_to_tbl_indx(qp->id, rcfw);
1161         rcfw->qp_tbl[tbl_indx].qp_id = qp->id;
1162         rcfw->qp_tbl[tbl_indx].qp_handle = (void *)qp;
1163
1164         return 0;
1165 fail:
1166         bnxt_qplib_free_hwq(res, &qp->irrq);
1167 fail_orrq:
1168         bnxt_qplib_free_hwq(res, &qp->orrq);
1169 rq_swq:
1170         kfree(rq->swq);
1171 fail_rq:
1172         bnxt_qplib_free_hwq(res, &rq->hwq);
1173 sq_swq:
1174         kfree(sq->swq);
1175 fail_sq:
1176         bnxt_qplib_free_hwq(res, &sq->hwq);
1177         return rc;
1178 }
1179
1180 static void __modify_flags_from_init_state(struct bnxt_qplib_qp *qp)
1181 {
1182         switch (qp->state) {
1183         case CMDQ_MODIFY_QP_NEW_STATE_RTR:
1184                 /* INIT->RTR, configure the path_mtu to the default
1185                  * 2048 if not being requested
1186                  */
1187                 if (!(qp->modify_flags &
1188                     CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU)) {
1189                         qp->modify_flags |=
1190                                 CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU;
1191                         qp->path_mtu =
1192                                 CMDQ_MODIFY_QP_PATH_MTU_MTU_2048;
1193                 }
1194                 qp->modify_flags &=
1195                         ~CMDQ_MODIFY_QP_MODIFY_MASK_VLAN_ID;
1196                 /* Bono FW require the max_dest_rd_atomic to be >= 1 */
1197                 if (qp->max_dest_rd_atomic < 1)
1198                         qp->max_dest_rd_atomic = 1;
1199                 qp->modify_flags &= ~CMDQ_MODIFY_QP_MODIFY_MASK_SRC_MAC;
1200                 /* Bono FW 20.6.5 requires SGID_INDEX configuration */
1201                 if (!(qp->modify_flags &
1202                     CMDQ_MODIFY_QP_MODIFY_MASK_SGID_INDEX)) {
1203                         qp->modify_flags |=
1204                                 CMDQ_MODIFY_QP_MODIFY_MASK_SGID_INDEX;
1205                         qp->ah.sgid_index = 0;
1206                 }
1207                 break;
1208         default:
1209                 break;
1210         }
1211 }
1212
1213 static void __modify_flags_from_rtr_state(struct bnxt_qplib_qp *qp)
1214 {
1215         switch (qp->state) {
1216         case CMDQ_MODIFY_QP_NEW_STATE_RTS:
1217                 /* Bono FW requires the max_rd_atomic to be >= 1 */
1218                 if (qp->max_rd_atomic < 1)
1219                         qp->max_rd_atomic = 1;
1220                 /* Bono FW does not allow PKEY_INDEX,
1221                  * DGID, FLOW_LABEL, SGID_INDEX, HOP_LIMIT,
1222                  * TRAFFIC_CLASS, DEST_MAC, PATH_MTU, RQ_PSN,
1223                  * MIN_RNR_TIMER, MAX_DEST_RD_ATOMIC, DEST_QP_ID
1224                  * modification
1225                  */
1226                 qp->modify_flags &=
1227                         ~(CMDQ_MODIFY_QP_MODIFY_MASK_PKEY |
1228                           CMDQ_MODIFY_QP_MODIFY_MASK_DGID |
1229                           CMDQ_MODIFY_QP_MODIFY_MASK_FLOW_LABEL |
1230                           CMDQ_MODIFY_QP_MODIFY_MASK_SGID_INDEX |
1231                           CMDQ_MODIFY_QP_MODIFY_MASK_HOP_LIMIT |
1232                           CMDQ_MODIFY_QP_MODIFY_MASK_TRAFFIC_CLASS |
1233                           CMDQ_MODIFY_QP_MODIFY_MASK_DEST_MAC |
1234                           CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU |
1235                           CMDQ_MODIFY_QP_MODIFY_MASK_RQ_PSN |
1236                           CMDQ_MODIFY_QP_MODIFY_MASK_MIN_RNR_TIMER |
1237                           CMDQ_MODIFY_QP_MODIFY_MASK_MAX_DEST_RD_ATOMIC |
1238                           CMDQ_MODIFY_QP_MODIFY_MASK_DEST_QP_ID);
1239                 break;
1240         default:
1241                 break;
1242         }
1243 }
1244
1245 static void __filter_modify_flags(struct bnxt_qplib_qp *qp)
1246 {
1247         switch (qp->cur_qp_state) {
1248         case CMDQ_MODIFY_QP_NEW_STATE_RESET:
1249                 break;
1250         case CMDQ_MODIFY_QP_NEW_STATE_INIT:
1251                 __modify_flags_from_init_state(qp);
1252                 break;
1253         case CMDQ_MODIFY_QP_NEW_STATE_RTR:
1254                 __modify_flags_from_rtr_state(qp);
1255                 break;
1256         case CMDQ_MODIFY_QP_NEW_STATE_RTS:
1257                 break;
1258         case CMDQ_MODIFY_QP_NEW_STATE_SQD:
1259                 break;
1260         case CMDQ_MODIFY_QP_NEW_STATE_SQE:
1261                 break;
1262         case CMDQ_MODIFY_QP_NEW_STATE_ERR:
1263                 break;
1264         default:
1265                 break;
1266         }
1267 }
1268
1269 int bnxt_qplib_modify_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
1270 {
1271         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
1272         struct creq_modify_qp_resp resp = {};
1273         struct bnxt_qplib_cmdqmsg msg = {};
1274         struct cmdq_modify_qp req = {};
1275         u32 temp32[4];
1276         u32 bmask;
1277         int rc;
1278
1279         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
1280                                  CMDQ_BASE_OPCODE_MODIFY_QP,
1281                                  sizeof(req));
1282
1283         /* Filter out the qp_attr_mask based on the state->new transition */
1284         __filter_modify_flags(qp);
1285         bmask = qp->modify_flags;
1286         req.modify_mask = cpu_to_le32(qp->modify_flags);
1287         req.qp_cid = cpu_to_le32(qp->id);
1288         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_STATE) {
1289                 req.network_type_en_sqd_async_notify_new_state =
1290                                 (qp->state & CMDQ_MODIFY_QP_NEW_STATE_MASK) |
1291                                 (qp->en_sqd_async_notify ?
1292                                         CMDQ_MODIFY_QP_EN_SQD_ASYNC_NOTIFY : 0);
1293         }
1294         req.network_type_en_sqd_async_notify_new_state |= qp->nw_type;
1295
1296         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_ACCESS)
1297                 req.access = qp->access;
1298
1299         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_PKEY)
1300                 req.pkey = cpu_to_le16(IB_DEFAULT_PKEY_FULL);
1301
1302         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_QKEY)
1303                 req.qkey = cpu_to_le32(qp->qkey);
1304
1305         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_DGID) {
1306                 memcpy(temp32, qp->ah.dgid.data, sizeof(struct bnxt_qplib_gid));
1307                 req.dgid[0] = cpu_to_le32(temp32[0]);
1308                 req.dgid[1] = cpu_to_le32(temp32[1]);
1309                 req.dgid[2] = cpu_to_le32(temp32[2]);
1310                 req.dgid[3] = cpu_to_le32(temp32[3]);
1311         }
1312         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_FLOW_LABEL)
1313                 req.flow_label = cpu_to_le32(qp->ah.flow_label);
1314
1315         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_SGID_INDEX)
1316                 req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id
1317                                              [qp->ah.sgid_index]);
1318
1319         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_HOP_LIMIT)
1320                 req.hop_limit = qp->ah.hop_limit;
1321
1322         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_TRAFFIC_CLASS)
1323                 req.traffic_class = qp->ah.traffic_class;
1324
1325         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_DEST_MAC)
1326                 memcpy(req.dest_mac, qp->ah.dmac, 6);
1327
1328         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU)
1329                 req.path_mtu_pingpong_push_enable |= qp->path_mtu;
1330
1331         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_TIMEOUT)
1332                 req.timeout = qp->timeout;
1333
1334         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_RETRY_CNT)
1335                 req.retry_cnt = qp->retry_cnt;
1336
1337         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_RNR_RETRY)
1338                 req.rnr_retry = qp->rnr_retry;
1339
1340         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_MIN_RNR_TIMER)
1341                 req.min_rnr_timer = qp->min_rnr_timer;
1342
1343         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_RQ_PSN)
1344                 req.rq_psn = cpu_to_le32(qp->rq.psn);
1345
1346         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_SQ_PSN)
1347                 req.sq_psn = cpu_to_le32(qp->sq.psn);
1348
1349         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_MAX_RD_ATOMIC)
1350                 req.max_rd_atomic =
1351                         ORD_LIMIT_TO_ORRQ_SLOTS(qp->max_rd_atomic);
1352
1353         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_MAX_DEST_RD_ATOMIC)
1354                 req.max_dest_rd_atomic =
1355                         IRD_LIMIT_TO_IRRQ_SLOTS(qp->max_dest_rd_atomic);
1356
1357         req.sq_size = cpu_to_le32(qp->sq.hwq.max_elements);
1358         req.rq_size = cpu_to_le32(qp->rq.hwq.max_elements);
1359         req.sq_sge = cpu_to_le16(qp->sq.max_sge);
1360         req.rq_sge = cpu_to_le16(qp->rq.max_sge);
1361         req.max_inline_data = cpu_to_le32(qp->max_inline_data);
1362         if (bmask & CMDQ_MODIFY_QP_MODIFY_MASK_DEST_QP_ID)
1363                 req.dest_qp_id = cpu_to_le32(qp->dest_qpn);
1364
1365         req.vlan_pcp_vlan_dei_vlan_id = cpu_to_le16(qp->vlan_id);
1366
1367         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),  sizeof(resp), 0);
1368         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
1369         if (rc)
1370                 return rc;
1371         qp->cur_qp_state = qp->state;
1372         return 0;
1373 }
1374
1375 int bnxt_qplib_query_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
1376 {
1377         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
1378         struct creq_query_qp_resp resp = {};
1379         struct bnxt_qplib_cmdqmsg msg = {};
1380         struct bnxt_qplib_rcfw_sbuf sbuf;
1381         struct creq_query_qp_resp_sb *sb;
1382         struct cmdq_query_qp req = {};
1383         u32 temp32[4];
1384         int i, rc;
1385
1386         sbuf.size = ALIGN(sizeof(*sb), BNXT_QPLIB_CMDQE_UNITS);
1387         sbuf.sb = dma_alloc_coherent(&rcfw->pdev->dev, sbuf.size,
1388                                      &sbuf.dma_addr, GFP_KERNEL);
1389         if (!sbuf.sb)
1390                 return -ENOMEM;
1391         sb = sbuf.sb;
1392
1393         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
1394                                  CMDQ_BASE_OPCODE_QUERY_QP,
1395                                  sizeof(req));
1396
1397         req.qp_cid = cpu_to_le32(qp->id);
1398         req.resp_size = sbuf.size / BNXT_QPLIB_CMDQE_UNITS;
1399         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, &sbuf, sizeof(req),
1400                                 sizeof(resp), 0);
1401         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
1402         if (rc)
1403                 goto bail;
1404         /* Extract the context from the side buffer */
1405         qp->state = sb->en_sqd_async_notify_state &
1406                         CREQ_QUERY_QP_RESP_SB_STATE_MASK;
1407         qp->en_sqd_async_notify = sb->en_sqd_async_notify_state &
1408                                   CREQ_QUERY_QP_RESP_SB_EN_SQD_ASYNC_NOTIFY;
1409         qp->access = sb->access;
1410         qp->pkey_index = le16_to_cpu(sb->pkey);
1411         qp->qkey = le32_to_cpu(sb->qkey);
1412
1413         temp32[0] = le32_to_cpu(sb->dgid[0]);
1414         temp32[1] = le32_to_cpu(sb->dgid[1]);
1415         temp32[2] = le32_to_cpu(sb->dgid[2]);
1416         temp32[3] = le32_to_cpu(sb->dgid[3]);
1417         memcpy(qp->ah.dgid.data, temp32, sizeof(qp->ah.dgid.data));
1418
1419         qp->ah.flow_label = le32_to_cpu(sb->flow_label);
1420
1421         qp->ah.sgid_index = 0;
1422         for (i = 0; i < res->sgid_tbl.max; i++) {
1423                 if (res->sgid_tbl.hw_id[i] == le16_to_cpu(sb->sgid_index)) {
1424                         qp->ah.sgid_index = i;
1425                         break;
1426                 }
1427         }
1428         if (i == res->sgid_tbl.max)
1429                 dev_warn(&res->pdev->dev, "SGID not found??\n");
1430
1431         qp->ah.hop_limit = sb->hop_limit;
1432         qp->ah.traffic_class = sb->traffic_class;
1433         memcpy(qp->ah.dmac, sb->dest_mac, 6);
1434         qp->ah.vlan_id = (le16_to_cpu(sb->path_mtu_dest_vlan_id) &
1435                                 CREQ_QUERY_QP_RESP_SB_VLAN_ID_MASK) >>
1436                                 CREQ_QUERY_QP_RESP_SB_VLAN_ID_SFT;
1437         qp->path_mtu = (le16_to_cpu(sb->path_mtu_dest_vlan_id) &
1438                                     CREQ_QUERY_QP_RESP_SB_PATH_MTU_MASK) >>
1439                                     CREQ_QUERY_QP_RESP_SB_PATH_MTU_SFT;
1440         qp->timeout = sb->timeout;
1441         qp->retry_cnt = sb->retry_cnt;
1442         qp->rnr_retry = sb->rnr_retry;
1443         qp->min_rnr_timer = sb->min_rnr_timer;
1444         qp->rq.psn = le32_to_cpu(sb->rq_psn);
1445         qp->max_rd_atomic = ORRQ_SLOTS_TO_ORD_LIMIT(sb->max_rd_atomic);
1446         qp->sq.psn = le32_to_cpu(sb->sq_psn);
1447         qp->max_dest_rd_atomic =
1448                         IRRQ_SLOTS_TO_IRD_LIMIT(sb->max_dest_rd_atomic);
1449         qp->sq.max_wqe = qp->sq.hwq.max_elements;
1450         qp->rq.max_wqe = qp->rq.hwq.max_elements;
1451         qp->sq.max_sge = le16_to_cpu(sb->sq_sge);
1452         qp->rq.max_sge = le16_to_cpu(sb->rq_sge);
1453         qp->max_inline_data = le32_to_cpu(sb->max_inline_data);
1454         qp->dest_qpn = le32_to_cpu(sb->dest_qp_id);
1455         memcpy(qp->smac, sb->src_mac, 6);
1456         qp->vlan_id = le16_to_cpu(sb->vlan_pcp_vlan_dei_vlan_id);
1457 bail:
1458         dma_free_coherent(&rcfw->pdev->dev, sbuf.size,
1459                           sbuf.sb, sbuf.dma_addr);
1460         return rc;
1461 }
1462
1463 static void __clean_cq(struct bnxt_qplib_cq *cq, u64 qp)
1464 {
1465         struct bnxt_qplib_hwq *cq_hwq = &cq->hwq;
1466         u32 peek_flags, peek_cons;
1467         struct cq_base *hw_cqe;
1468         int i;
1469
1470         peek_flags = cq->dbinfo.flags;
1471         peek_cons = cq_hwq->cons;
1472         for (i = 0; i < cq_hwq->max_elements; i++) {
1473                 hw_cqe = bnxt_qplib_get_qe(cq_hwq, peek_cons, NULL);
1474                 if (!CQE_CMP_VALID(hw_cqe, peek_flags))
1475                         continue;
1476                 /*
1477                  * The valid test of the entry must be done first before
1478                  * reading any further.
1479                  */
1480                 dma_rmb();
1481                 switch (hw_cqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK) {
1482                 case CQ_BASE_CQE_TYPE_REQ:
1483                 case CQ_BASE_CQE_TYPE_TERMINAL:
1484                 {
1485                         struct cq_req *cqe = (struct cq_req *)hw_cqe;
1486
1487                         if (qp == le64_to_cpu(cqe->qp_handle))
1488                                 cqe->qp_handle = 0;
1489                         break;
1490                 }
1491                 case CQ_BASE_CQE_TYPE_RES_RC:
1492                 case CQ_BASE_CQE_TYPE_RES_UD:
1493                 case CQ_BASE_CQE_TYPE_RES_RAWETH_QP1:
1494                 {
1495                         struct cq_res_rc *cqe = (struct cq_res_rc *)hw_cqe;
1496
1497                         if (qp == le64_to_cpu(cqe->qp_handle))
1498                                 cqe->qp_handle = 0;
1499                         break;
1500                 }
1501                 default:
1502                         break;
1503                 }
1504                 bnxt_qplib_hwq_incr_cons(cq_hwq->max_elements, &peek_cons,
1505                                          1, &peek_flags);
1506         }
1507 }
1508
1509 int bnxt_qplib_destroy_qp(struct bnxt_qplib_res *res,
1510                           struct bnxt_qplib_qp *qp)
1511 {
1512         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
1513         struct creq_destroy_qp_resp resp = {};
1514         struct bnxt_qplib_cmdqmsg msg = {};
1515         struct cmdq_destroy_qp req = {};
1516         u32 tbl_indx;
1517         int rc;
1518
1519         tbl_indx = map_qp_id_to_tbl_indx(qp->id, rcfw);
1520         rcfw->qp_tbl[tbl_indx].qp_id = BNXT_QPLIB_QP_ID_INVALID;
1521         rcfw->qp_tbl[tbl_indx].qp_handle = NULL;
1522
1523         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
1524                                  CMDQ_BASE_OPCODE_DESTROY_QP,
1525                                  sizeof(req));
1526
1527         req.qp_cid = cpu_to_le32(qp->id);
1528         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
1529                                 sizeof(resp), 0);
1530         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
1531         if (rc) {
1532                 rcfw->qp_tbl[tbl_indx].qp_id = qp->id;
1533                 rcfw->qp_tbl[tbl_indx].qp_handle = qp;
1534                 return rc;
1535         }
1536
1537         return 0;
1538 }
1539
1540 void bnxt_qplib_free_qp_res(struct bnxt_qplib_res *res,
1541                             struct bnxt_qplib_qp *qp)
1542 {
1543         bnxt_qplib_free_qp_hdr_buf(res, qp);
1544         bnxt_qplib_free_hwq(res, &qp->sq.hwq);
1545         kfree(qp->sq.swq);
1546
1547         bnxt_qplib_free_hwq(res, &qp->rq.hwq);
1548         kfree(qp->rq.swq);
1549
1550         if (qp->irrq.max_elements)
1551                 bnxt_qplib_free_hwq(res, &qp->irrq);
1552         if (qp->orrq.max_elements)
1553                 bnxt_qplib_free_hwq(res, &qp->orrq);
1554
1555 }
1556
1557 void *bnxt_qplib_get_qp1_sq_buf(struct bnxt_qplib_qp *qp,
1558                                 struct bnxt_qplib_sge *sge)
1559 {
1560         struct bnxt_qplib_q *sq = &qp->sq;
1561         u32 sw_prod;
1562
1563         memset(sge, 0, sizeof(*sge));
1564
1565         if (qp->sq_hdr_buf) {
1566                 sw_prod = sq->swq_start;
1567                 sge->addr = (dma_addr_t)(qp->sq_hdr_buf_map +
1568                                          sw_prod * qp->sq_hdr_buf_size);
1569                 sge->lkey = 0xFFFFFFFF;
1570                 sge->size = qp->sq_hdr_buf_size;
1571                 return qp->sq_hdr_buf + sw_prod * sge->size;
1572         }
1573         return NULL;
1574 }
1575
1576 u32 bnxt_qplib_get_rq_prod_index(struct bnxt_qplib_qp *qp)
1577 {
1578         struct bnxt_qplib_q *rq = &qp->rq;
1579
1580         return rq->swq_start;
1581 }
1582
1583 dma_addr_t bnxt_qplib_get_qp_buf_from_index(struct bnxt_qplib_qp *qp, u32 index)
1584 {
1585         return (qp->rq_hdr_buf_map + index * qp->rq_hdr_buf_size);
1586 }
1587
1588 void *bnxt_qplib_get_qp1_rq_buf(struct bnxt_qplib_qp *qp,
1589                                 struct bnxt_qplib_sge *sge)
1590 {
1591         struct bnxt_qplib_q *rq = &qp->rq;
1592         u32 sw_prod;
1593
1594         memset(sge, 0, sizeof(*sge));
1595
1596         if (qp->rq_hdr_buf) {
1597                 sw_prod = rq->swq_start;
1598                 sge->addr = (dma_addr_t)(qp->rq_hdr_buf_map +
1599                                          sw_prod * qp->rq_hdr_buf_size);
1600                 sge->lkey = 0xFFFFFFFF;
1601                 sge->size = qp->rq_hdr_buf_size;
1602                 return qp->rq_hdr_buf + sw_prod * sge->size;
1603         }
1604         return NULL;
1605 }
1606
1607 /* Fil the MSN table into the next psn row */
1608 static void bnxt_qplib_fill_msn_search(struct bnxt_qplib_qp *qp,
1609                                        struct bnxt_qplib_swqe *wqe,
1610                                        struct bnxt_qplib_swq *swq)
1611 {
1612         struct sq_msn_search *msns;
1613         u32 start_psn, next_psn;
1614         u16 start_idx;
1615
1616         msns = (struct sq_msn_search *)swq->psn_search;
1617         msns->start_idx_next_psn_start_psn = 0;
1618
1619         start_psn = swq->start_psn;
1620         next_psn = swq->next_psn;
1621         start_idx = swq->slot_idx;
1622         msns->start_idx_next_psn_start_psn |=
1623                 bnxt_re_update_msn_tbl(start_idx, next_psn, start_psn);
1624         qp->msn++;
1625         qp->msn %= qp->msn_tbl_sz;
1626 }
1627
1628 static void bnxt_qplib_fill_psn_search(struct bnxt_qplib_qp *qp,
1629                                        struct bnxt_qplib_swqe *wqe,
1630                                        struct bnxt_qplib_swq *swq)
1631 {
1632         struct sq_psn_search_ext *psns_ext;
1633         struct sq_psn_search *psns;
1634         u32 flg_npsn;
1635         u32 op_spsn;
1636
1637         if (!swq->psn_search)
1638                 return;
1639         /* Handle MSN differently on cap flags  */
1640         if (qp->is_host_msn_tbl) {
1641                 bnxt_qplib_fill_msn_search(qp, wqe, swq);
1642                 return;
1643         }
1644         psns = (struct sq_psn_search *)swq->psn_search;
1645         psns = swq->psn_search;
1646         psns_ext = swq->psn_ext;
1647
1648         op_spsn = ((swq->start_psn << SQ_PSN_SEARCH_START_PSN_SFT) &
1649                     SQ_PSN_SEARCH_START_PSN_MASK);
1650         op_spsn |= ((wqe->type << SQ_PSN_SEARCH_OPCODE_SFT) &
1651                      SQ_PSN_SEARCH_OPCODE_MASK);
1652         flg_npsn = ((swq->next_psn << SQ_PSN_SEARCH_NEXT_PSN_SFT) &
1653                      SQ_PSN_SEARCH_NEXT_PSN_MASK);
1654
1655         if (bnxt_qplib_is_chip_gen_p5_p7(qp->cctx)) {
1656                 psns_ext->opcode_start_psn = cpu_to_le32(op_spsn);
1657                 psns_ext->flags_next_psn = cpu_to_le32(flg_npsn);
1658                 psns_ext->start_slot_idx = cpu_to_le16(swq->slot_idx);
1659         } else {
1660                 psns->opcode_start_psn = cpu_to_le32(op_spsn);
1661                 psns->flags_next_psn = cpu_to_le32(flg_npsn);
1662         }
1663 }
1664
1665 static int bnxt_qplib_put_inline(struct bnxt_qplib_qp *qp,
1666                                  struct bnxt_qplib_swqe *wqe,
1667                                  u16 *idx)
1668 {
1669         struct bnxt_qplib_hwq *hwq;
1670         int len, t_len, offt;
1671         bool pull_dst = true;
1672         void *il_dst = NULL;
1673         void *il_src = NULL;
1674         int t_cplen, cplen;
1675         int indx;
1676
1677         hwq = &qp->sq.hwq;
1678         t_len = 0;
1679         for (indx = 0; indx < wqe->num_sge; indx++) {
1680                 len = wqe->sg_list[indx].size;
1681                 il_src = (void *)wqe->sg_list[indx].addr;
1682                 t_len += len;
1683                 if (t_len > qp->max_inline_data)
1684                         return -ENOMEM;
1685                 while (len) {
1686                         if (pull_dst) {
1687                                 pull_dst = false;
1688                                 il_dst = bnxt_qplib_get_prod_qe(hwq, *idx);
1689                                 (*idx)++;
1690                                 t_cplen = 0;
1691                                 offt = 0;
1692                         }
1693                         cplen = min_t(int, len, sizeof(struct sq_sge));
1694                         cplen = min_t(int, cplen,
1695                                         (sizeof(struct sq_sge) - offt));
1696                         memcpy(il_dst, il_src, cplen);
1697                         t_cplen += cplen;
1698                         il_src += cplen;
1699                         il_dst += cplen;
1700                         offt += cplen;
1701                         len -= cplen;
1702                         if (t_cplen == sizeof(struct sq_sge))
1703                                 pull_dst = true;
1704                 }
1705         }
1706
1707         return t_len;
1708 }
1709
1710 static u32 bnxt_qplib_put_sges(struct bnxt_qplib_hwq *hwq,
1711                                struct bnxt_qplib_sge *ssge,
1712                                u16 nsge, u16 *idx)
1713 {
1714         struct sq_sge *dsge;
1715         int indx, len = 0;
1716
1717         for (indx = 0; indx < nsge; indx++, (*idx)++) {
1718                 dsge = bnxt_qplib_get_prod_qe(hwq, *idx);
1719                 dsge->va_or_pa = cpu_to_le64(ssge[indx].addr);
1720                 dsge->l_key = cpu_to_le32(ssge[indx].lkey);
1721                 dsge->size = cpu_to_le32(ssge[indx].size);
1722                 len += ssge[indx].size;
1723         }
1724
1725         return len;
1726 }
1727
1728 static u16 bnxt_qplib_required_slots(struct bnxt_qplib_qp *qp,
1729                                      struct bnxt_qplib_swqe *wqe,
1730                                      u16 *wqe_sz, u16 *qdf, u8 mode)
1731 {
1732         u32 ilsize, bytes;
1733         u16 nsge;
1734         u16 slot;
1735
1736         nsge = wqe->num_sge;
1737         /* Adding sq_send_hdr is a misnomer, for rq also hdr size is same. */
1738         bytes = sizeof(struct sq_send_hdr) + nsge * sizeof(struct sq_sge);
1739         if (wqe->flags & BNXT_QPLIB_SWQE_FLAGS_INLINE) {
1740                 ilsize = bnxt_qplib_calc_ilsize(wqe, qp->max_inline_data);
1741                 bytes = ALIGN(ilsize, sizeof(struct sq_sge));
1742                 bytes += sizeof(struct sq_send_hdr);
1743         }
1744
1745         *qdf =  __xlate_qfd(qp->sq.q_full_delta, bytes);
1746         slot = bytes >> 4;
1747         *wqe_sz = slot;
1748         if (mode == BNXT_QPLIB_WQE_MODE_STATIC)
1749                 slot = 8;
1750         return slot;
1751 }
1752
1753 static void bnxt_qplib_pull_psn_buff(struct bnxt_qplib_qp *qp, struct bnxt_qplib_q *sq,
1754                                      struct bnxt_qplib_swq *swq, bool hw_retx)
1755 {
1756         struct bnxt_qplib_hwq *hwq;
1757         u32 pg_num, pg_indx;
1758         void *buff;
1759         u32 tail;
1760
1761         hwq = &sq->hwq;
1762         if (!hwq->pad_pg)
1763                 return;
1764         tail = swq->slot_idx / sq->dbinfo.max_slot;
1765         if (hw_retx) {
1766                 /* For HW retx use qp msn index */
1767                 tail = qp->msn;
1768                 tail %= qp->msn_tbl_sz;
1769         }
1770         pg_num = (tail + hwq->pad_pgofft) / (PAGE_SIZE / hwq->pad_stride);
1771         pg_indx = (tail + hwq->pad_pgofft) % (PAGE_SIZE / hwq->pad_stride);
1772         buff = (void *)(hwq->pad_pg[pg_num] + pg_indx * hwq->pad_stride);
1773         swq->psn_ext = buff;
1774         swq->psn_search = buff;
1775 }
1776
1777 void bnxt_qplib_post_send_db(struct bnxt_qplib_qp *qp)
1778 {
1779         struct bnxt_qplib_q *sq = &qp->sq;
1780
1781         bnxt_qplib_ring_prod_db(&sq->dbinfo, DBC_DBC_TYPE_SQ);
1782 }
1783
1784 int bnxt_qplib_post_send(struct bnxt_qplib_qp *qp,
1785                          struct bnxt_qplib_swqe *wqe)
1786 {
1787         struct bnxt_qplib_nq_work *nq_work = NULL;
1788         int i, rc = 0, data_len = 0, pkt_num = 0;
1789         struct bnxt_qplib_q *sq = &qp->sq;
1790         struct bnxt_qplib_hwq *hwq;
1791         struct bnxt_qplib_swq *swq;
1792         bool sch_handler = false;
1793         u16 wqe_sz, qdf = 0;
1794         bool msn_update;
1795         void *base_hdr;
1796         void *ext_hdr;
1797         __le32 temp32;
1798         u32 wqe_idx;
1799         u32 slots;
1800         u16 idx;
1801
1802         hwq = &sq->hwq;
1803         if (qp->state != CMDQ_MODIFY_QP_NEW_STATE_RTS &&
1804             qp->state != CMDQ_MODIFY_QP_NEW_STATE_ERR) {
1805                 dev_err(&hwq->pdev->dev,
1806                         "QPLIB: FP: QP (0x%x) is in the 0x%x state",
1807                         qp->id, qp->state);
1808                 rc = -EINVAL;
1809                 goto done;
1810         }
1811
1812         slots = bnxt_qplib_required_slots(qp, wqe, &wqe_sz, &qdf, qp->wqe_mode);
1813         if (bnxt_qplib_queue_full(sq, slots + qdf)) {
1814                 dev_err(&hwq->pdev->dev,
1815                         "prod = %#x cons = %#x qdepth = %#x delta = %#x\n",
1816                         hwq->prod, hwq->cons, hwq->depth, sq->q_full_delta);
1817                 rc = -ENOMEM;
1818                 goto done;
1819         }
1820
1821         swq = bnxt_qplib_get_swqe(sq, &wqe_idx);
1822         bnxt_qplib_pull_psn_buff(qp, sq, swq, qp->is_host_msn_tbl);
1823
1824         idx = 0;
1825         swq->slot_idx = hwq->prod;
1826         swq->slots = slots;
1827         swq->wr_id = wqe->wr_id;
1828         swq->type = wqe->type;
1829         swq->flags = wqe->flags;
1830         swq->start_psn = sq->psn & BTH_PSN_MASK;
1831         if (qp->sig_type)
1832                 swq->flags |= SQ_SEND_FLAGS_SIGNAL_COMP;
1833
1834         if (qp->state == CMDQ_MODIFY_QP_NEW_STATE_ERR) {
1835                 sch_handler = true;
1836                 dev_dbg(&hwq->pdev->dev,
1837                         "%s Error QP. Scheduling for poll_cq\n", __func__);
1838                 goto queue_err;
1839         }
1840
1841         base_hdr = bnxt_qplib_get_prod_qe(hwq, idx++);
1842         ext_hdr = bnxt_qplib_get_prod_qe(hwq, idx++);
1843         memset(base_hdr, 0, sizeof(struct sq_sge));
1844         memset(ext_hdr, 0, sizeof(struct sq_sge));
1845
1846         if (wqe->flags & BNXT_QPLIB_SWQE_FLAGS_INLINE)
1847                 /* Copy the inline data */
1848                 data_len = bnxt_qplib_put_inline(qp, wqe, &idx);
1849         else
1850                 data_len = bnxt_qplib_put_sges(hwq, wqe->sg_list, wqe->num_sge,
1851                                                &idx);
1852         if (data_len < 0)
1853                 goto queue_err;
1854         /* Make sure we update MSN table only for wired wqes */
1855         msn_update = true;
1856         /* Specifics */
1857         switch (wqe->type) {
1858         case BNXT_QPLIB_SWQE_TYPE_SEND:
1859                 if (qp->type == CMDQ_CREATE_QP1_TYPE_GSI) {
1860                         struct sq_send_raweth_qp1_hdr *sqe = base_hdr;
1861                         struct sq_raw_ext_hdr *ext_sqe = ext_hdr;
1862                         /* Assemble info for Raw Ethertype QPs */
1863
1864                         sqe->wqe_type = wqe->type;
1865                         sqe->flags = wqe->flags;
1866                         sqe->wqe_size = wqe_sz;
1867                         sqe->cfa_action = cpu_to_le16(wqe->rawqp1.cfa_action);
1868                         sqe->lflags = cpu_to_le16(wqe->rawqp1.lflags);
1869                         sqe->length = cpu_to_le32(data_len);
1870                         ext_sqe->cfa_meta = cpu_to_le32((wqe->rawqp1.cfa_meta &
1871                                 SQ_SEND_RAWETH_QP1_CFA_META_VLAN_VID_MASK) <<
1872                                 SQ_SEND_RAWETH_QP1_CFA_META_VLAN_VID_SFT);
1873
1874                         break;
1875                 }
1876                 fallthrough;
1877         case BNXT_QPLIB_SWQE_TYPE_SEND_WITH_IMM:
1878         case BNXT_QPLIB_SWQE_TYPE_SEND_WITH_INV:
1879         {
1880                 struct sq_ud_ext_hdr *ext_sqe = ext_hdr;
1881                 struct sq_send_hdr *sqe = base_hdr;
1882
1883                 sqe->wqe_type = wqe->type;
1884                 sqe->flags = wqe->flags;
1885                 sqe->wqe_size = wqe_sz;
1886                 sqe->inv_key_or_imm_data = cpu_to_le32(wqe->send.inv_key);
1887                 if (qp->type == CMDQ_CREATE_QP_TYPE_UD ||
1888                     qp->type == CMDQ_CREATE_QP_TYPE_GSI) {
1889                         sqe->q_key = cpu_to_le32(wqe->send.q_key);
1890                         sqe->length = cpu_to_le32(data_len);
1891                         sq->psn = (sq->psn + 1) & BTH_PSN_MASK;
1892                         ext_sqe->dst_qp = cpu_to_le32(wqe->send.dst_qp &
1893                                                       SQ_SEND_DST_QP_MASK);
1894                         ext_sqe->avid = cpu_to_le32(wqe->send.avid &
1895                                                     SQ_SEND_AVID_MASK);
1896                         msn_update = false;
1897                 } else {
1898                         sqe->length = cpu_to_le32(data_len);
1899                         if (qp->mtu)
1900                                 pkt_num = (data_len + qp->mtu - 1) / qp->mtu;
1901                         if (!pkt_num)
1902                                 pkt_num = 1;
1903                         sq->psn = (sq->psn + pkt_num) & BTH_PSN_MASK;
1904                 }
1905                 break;
1906         }
1907         case BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE:
1908         case BNXT_QPLIB_SWQE_TYPE_RDMA_WRITE_WITH_IMM:
1909         case BNXT_QPLIB_SWQE_TYPE_RDMA_READ:
1910         {
1911                 struct sq_rdma_ext_hdr *ext_sqe = ext_hdr;
1912                 struct sq_rdma_hdr *sqe = base_hdr;
1913
1914                 sqe->wqe_type = wqe->type;
1915                 sqe->flags = wqe->flags;
1916                 sqe->wqe_size = wqe_sz;
1917                 sqe->imm_data = cpu_to_le32(wqe->rdma.inv_key);
1918                 sqe->length = cpu_to_le32((u32)data_len);
1919                 ext_sqe->remote_va = cpu_to_le64(wqe->rdma.remote_va);
1920                 ext_sqe->remote_key = cpu_to_le32(wqe->rdma.r_key);
1921                 if (qp->mtu)
1922                         pkt_num = (data_len + qp->mtu - 1) / qp->mtu;
1923                 if (!pkt_num)
1924                         pkt_num = 1;
1925                 sq->psn = (sq->psn + pkt_num) & BTH_PSN_MASK;
1926                 break;
1927         }
1928         case BNXT_QPLIB_SWQE_TYPE_ATOMIC_CMP_AND_SWP:
1929         case BNXT_QPLIB_SWQE_TYPE_ATOMIC_FETCH_AND_ADD:
1930         {
1931                 struct sq_atomic_ext_hdr *ext_sqe = ext_hdr;
1932                 struct sq_atomic_hdr *sqe = base_hdr;
1933
1934                 sqe->wqe_type = wqe->type;
1935                 sqe->flags = wqe->flags;
1936                 sqe->remote_key = cpu_to_le32(wqe->atomic.r_key);
1937                 sqe->remote_va = cpu_to_le64(wqe->atomic.remote_va);
1938                 ext_sqe->swap_data = cpu_to_le64(wqe->atomic.swap_data);
1939                 ext_sqe->cmp_data = cpu_to_le64(wqe->atomic.cmp_data);
1940                 if (qp->mtu)
1941                         pkt_num = (data_len + qp->mtu - 1) / qp->mtu;
1942                 if (!pkt_num)
1943                         pkt_num = 1;
1944                 sq->psn = (sq->psn + pkt_num) & BTH_PSN_MASK;
1945                 break;
1946         }
1947         case BNXT_QPLIB_SWQE_TYPE_LOCAL_INV:
1948         {
1949                 struct sq_localinvalidate *sqe = base_hdr;
1950
1951                 sqe->wqe_type = wqe->type;
1952                 sqe->flags = wqe->flags;
1953                 sqe->inv_l_key = cpu_to_le32(wqe->local_inv.inv_l_key);
1954                 msn_update = false;
1955                 break;
1956         }
1957         case BNXT_QPLIB_SWQE_TYPE_FAST_REG_MR:
1958         {
1959                 struct sq_fr_pmr_ext_hdr *ext_sqe = ext_hdr;
1960                 struct sq_fr_pmr_hdr *sqe = base_hdr;
1961
1962                 sqe->wqe_type = wqe->type;
1963                 sqe->flags = wqe->flags;
1964                 sqe->access_cntl = wqe->frmr.access_cntl |
1965                                    SQ_FR_PMR_ACCESS_CNTL_LOCAL_WRITE;
1966                 sqe->zero_based_page_size_log =
1967                         (wqe->frmr.pg_sz_log & SQ_FR_PMR_PAGE_SIZE_LOG_MASK) <<
1968                         SQ_FR_PMR_PAGE_SIZE_LOG_SFT |
1969                         (wqe->frmr.zero_based ? SQ_FR_PMR_ZERO_BASED : 0);
1970                 sqe->l_key = cpu_to_le32(wqe->frmr.l_key);
1971                 temp32 = cpu_to_le32(wqe->frmr.length);
1972                 memcpy(sqe->length, &temp32, sizeof(wqe->frmr.length));
1973                 sqe->numlevels_pbl_page_size_log =
1974                         ((wqe->frmr.pbl_pg_sz_log <<
1975                                         SQ_FR_PMR_PBL_PAGE_SIZE_LOG_SFT) &
1976                                         SQ_FR_PMR_PBL_PAGE_SIZE_LOG_MASK) |
1977                         ((wqe->frmr.levels << SQ_FR_PMR_NUMLEVELS_SFT) &
1978                                         SQ_FR_PMR_NUMLEVELS_MASK);
1979
1980                 for (i = 0; i < wqe->frmr.page_list_len; i++)
1981                         wqe->frmr.pbl_ptr[i] = cpu_to_le64(
1982                                                 wqe->frmr.page_list[i] |
1983                                                 PTU_PTE_VALID);
1984                 ext_sqe->pblptr = cpu_to_le64(wqe->frmr.pbl_dma_ptr);
1985                 ext_sqe->va = cpu_to_le64(wqe->frmr.va);
1986                 msn_update = false;
1987
1988                 break;
1989         }
1990         case BNXT_QPLIB_SWQE_TYPE_BIND_MW:
1991         {
1992                 struct sq_bind_ext_hdr *ext_sqe = ext_hdr;
1993                 struct sq_bind_hdr *sqe = base_hdr;
1994
1995                 sqe->wqe_type = wqe->type;
1996                 sqe->flags = wqe->flags;
1997                 sqe->access_cntl = wqe->bind.access_cntl;
1998                 sqe->mw_type_zero_based = wqe->bind.mw_type |
1999                         (wqe->bind.zero_based ? SQ_BIND_ZERO_BASED : 0);
2000                 sqe->parent_l_key = cpu_to_le32(wqe->bind.parent_l_key);
2001                 sqe->l_key = cpu_to_le32(wqe->bind.r_key);
2002                 ext_sqe->va = cpu_to_le64(wqe->bind.va);
2003                 ext_sqe->length_lo = cpu_to_le32(wqe->bind.length);
2004                 msn_update = false;
2005                 break;
2006         }
2007         default:
2008                 /* Bad wqe, return error */
2009                 rc = -EINVAL;
2010                 goto done;
2011         }
2012         if (!qp->is_host_msn_tbl || msn_update) {
2013                 swq->next_psn = sq->psn & BTH_PSN_MASK;
2014                 bnxt_qplib_fill_psn_search(qp, wqe, swq);
2015         }
2016 queue_err:
2017         bnxt_qplib_swq_mod_start(sq, wqe_idx);
2018         bnxt_qplib_hwq_incr_prod(&sq->dbinfo, hwq, swq->slots);
2019         qp->wqe_cnt++;
2020 done:
2021         if (sch_handler) {
2022                 nq_work = kzalloc(sizeof(*nq_work), GFP_ATOMIC);
2023                 if (nq_work) {
2024                         nq_work->cq = qp->scq;
2025                         nq_work->nq = qp->scq->nq;
2026                         INIT_WORK(&nq_work->work, bnxt_qpn_cqn_sched_task);
2027                         queue_work(qp->scq->nq->cqn_wq, &nq_work->work);
2028                 } else {
2029                         dev_err(&hwq->pdev->dev,
2030                                 "FP: Failed to allocate SQ nq_work!\n");
2031                         rc = -ENOMEM;
2032                 }
2033         }
2034         return rc;
2035 }
2036
2037 void bnxt_qplib_post_recv_db(struct bnxt_qplib_qp *qp)
2038 {
2039         struct bnxt_qplib_q *rq = &qp->rq;
2040
2041         bnxt_qplib_ring_prod_db(&rq->dbinfo, DBC_DBC_TYPE_RQ);
2042 }
2043
2044 int bnxt_qplib_post_recv(struct bnxt_qplib_qp *qp,
2045                          struct bnxt_qplib_swqe *wqe)
2046 {
2047         struct bnxt_qplib_nq_work *nq_work = NULL;
2048         struct bnxt_qplib_q *rq = &qp->rq;
2049         struct rq_wqe_hdr *base_hdr;
2050         struct rq_ext_hdr *ext_hdr;
2051         struct bnxt_qplib_hwq *hwq;
2052         struct bnxt_qplib_swq *swq;
2053         bool sch_handler = false;
2054         u16 wqe_sz, idx;
2055         u32 wqe_idx;
2056         int rc = 0;
2057
2058         hwq = &rq->hwq;
2059         if (qp->state == CMDQ_MODIFY_QP_NEW_STATE_RESET) {
2060                 dev_err(&hwq->pdev->dev,
2061                         "QPLIB: FP: QP (0x%x) is in the 0x%x state",
2062                         qp->id, qp->state);
2063                 rc = -EINVAL;
2064                 goto done;
2065         }
2066
2067         if (bnxt_qplib_queue_full(rq, rq->dbinfo.max_slot)) {
2068                 dev_err(&hwq->pdev->dev,
2069                         "FP: QP (0x%x) RQ is full!\n", qp->id);
2070                 rc = -EINVAL;
2071                 goto done;
2072         }
2073
2074         swq = bnxt_qplib_get_swqe(rq, &wqe_idx);
2075         swq->wr_id = wqe->wr_id;
2076         swq->slots = rq->dbinfo.max_slot;
2077
2078         if (qp->state == CMDQ_MODIFY_QP_NEW_STATE_ERR) {
2079                 sch_handler = true;
2080                 dev_dbg(&hwq->pdev->dev,
2081                         "%s: Error QP. Scheduling for poll_cq\n", __func__);
2082                 goto queue_err;
2083         }
2084
2085         idx = 0;
2086         base_hdr = bnxt_qplib_get_prod_qe(hwq, idx++);
2087         ext_hdr = bnxt_qplib_get_prod_qe(hwq, idx++);
2088         memset(base_hdr, 0, sizeof(struct sq_sge));
2089         memset(ext_hdr, 0, sizeof(struct sq_sge));
2090         wqe_sz = (sizeof(struct rq_wqe_hdr) +
2091         wqe->num_sge * sizeof(struct sq_sge)) >> 4;
2092         bnxt_qplib_put_sges(hwq, wqe->sg_list, wqe->num_sge, &idx);
2093         if (!wqe->num_sge) {
2094                 struct sq_sge *sge;
2095
2096                 sge = bnxt_qplib_get_prod_qe(hwq, idx++);
2097                 sge->size = 0;
2098                 wqe_sz++;
2099         }
2100         base_hdr->wqe_type = wqe->type;
2101         base_hdr->flags = wqe->flags;
2102         base_hdr->wqe_size = wqe_sz;
2103         base_hdr->wr_id[0] = cpu_to_le32(wqe_idx);
2104 queue_err:
2105         bnxt_qplib_swq_mod_start(rq, wqe_idx);
2106         bnxt_qplib_hwq_incr_prod(&rq->dbinfo, hwq, swq->slots);
2107 done:
2108         if (sch_handler) {
2109                 nq_work = kzalloc(sizeof(*nq_work), GFP_ATOMIC);
2110                 if (nq_work) {
2111                         nq_work->cq = qp->rcq;
2112                         nq_work->nq = qp->rcq->nq;
2113                         INIT_WORK(&nq_work->work, bnxt_qpn_cqn_sched_task);
2114                         queue_work(qp->rcq->nq->cqn_wq, &nq_work->work);
2115                 } else {
2116                         dev_err(&hwq->pdev->dev,
2117                                 "FP: Failed to allocate RQ nq_work!\n");
2118                         rc = -ENOMEM;
2119                 }
2120         }
2121
2122         return rc;
2123 }
2124
2125 /* CQ */
2126 int bnxt_qplib_create_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
2127 {
2128         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
2129         struct bnxt_qplib_hwq_attr hwq_attr = {};
2130         struct creq_create_cq_resp resp = {};
2131         struct bnxt_qplib_cmdqmsg msg = {};
2132         struct cmdq_create_cq req = {};
2133         struct bnxt_qplib_pbl *pbl;
2134         u32 pg_sz_lvl;
2135         int rc;
2136
2137         if (!cq->dpi) {
2138                 dev_err(&rcfw->pdev->dev,
2139                         "FP: CREATE_CQ failed due to NULL DPI\n");
2140                 return -EINVAL;
2141         }
2142
2143         cq->dbinfo.flags = 0;
2144         hwq_attr.res = res;
2145         hwq_attr.depth = cq->max_wqe;
2146         hwq_attr.stride = sizeof(struct cq_base);
2147         hwq_attr.type = HWQ_TYPE_QUEUE;
2148         hwq_attr.sginfo = &cq->sg_info;
2149         rc = bnxt_qplib_alloc_init_hwq(&cq->hwq, &hwq_attr);
2150         if (rc)
2151                 return rc;
2152
2153         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
2154                                  CMDQ_BASE_OPCODE_CREATE_CQ,
2155                                  sizeof(req));
2156
2157         req.dpi = cpu_to_le32(cq->dpi->dpi);
2158         req.cq_handle = cpu_to_le64(cq->cq_handle);
2159         req.cq_size = cpu_to_le32(cq->max_wqe);
2160         pbl = &cq->hwq.pbl[PBL_LVL_0];
2161         pg_sz_lvl = (bnxt_qplib_base_pg_size(&cq->hwq) <<
2162                      CMDQ_CREATE_CQ_PG_SIZE_SFT);
2163         pg_sz_lvl |= (cq->hwq.level & CMDQ_CREATE_CQ_LVL_MASK);
2164         req.pg_size_lvl = cpu_to_le32(pg_sz_lvl);
2165         req.pbl = cpu_to_le64(pbl->pg_map_arr[0]);
2166         req.cq_fco_cnq_id = cpu_to_le32(
2167                         (cq->cnq_hw_ring_id & CMDQ_CREATE_CQ_CNQ_ID_MASK) <<
2168                          CMDQ_CREATE_CQ_CNQ_ID_SFT);
2169         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
2170                                 sizeof(resp), 0);
2171         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
2172         if (rc)
2173                 goto fail;
2174
2175         cq->id = le32_to_cpu(resp.xid);
2176         cq->period = BNXT_QPLIB_QUEUE_START_PERIOD;
2177         init_waitqueue_head(&cq->waitq);
2178         INIT_LIST_HEAD(&cq->sqf_head);
2179         INIT_LIST_HEAD(&cq->rqf_head);
2180         spin_lock_init(&cq->compl_lock);
2181         spin_lock_init(&cq->flush_lock);
2182
2183         cq->dbinfo.hwq = &cq->hwq;
2184         cq->dbinfo.xid = cq->id;
2185         cq->dbinfo.db = cq->dpi->dbr;
2186         cq->dbinfo.priv_db = res->dpi_tbl.priv_db;
2187         cq->dbinfo.flags = 0;
2188         cq->dbinfo.toggle = 0;
2189
2190         bnxt_qplib_armen_db(&cq->dbinfo, DBC_DBC_TYPE_CQ_ARMENA);
2191
2192         return 0;
2193
2194 fail:
2195         bnxt_qplib_free_hwq(res, &cq->hwq);
2196         return rc;
2197 }
2198
2199 void bnxt_qplib_resize_cq_complete(struct bnxt_qplib_res *res,
2200                                    struct bnxt_qplib_cq *cq)
2201 {
2202         bnxt_qplib_free_hwq(res, &cq->hwq);
2203         memcpy(&cq->hwq, &cq->resize_hwq, sizeof(cq->hwq));
2204        /* Reset only the cons bit in the flags */
2205         cq->dbinfo.flags &= ~(1UL << BNXT_QPLIB_FLAG_EPOCH_CONS_SHIFT);
2206 }
2207
2208 int bnxt_qplib_resize_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq,
2209                          int new_cqes)
2210 {
2211         struct bnxt_qplib_hwq_attr hwq_attr = {};
2212         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
2213         struct creq_resize_cq_resp resp = {};
2214         struct bnxt_qplib_cmdqmsg msg = {};
2215         struct cmdq_resize_cq req = {};
2216         struct bnxt_qplib_pbl *pbl;
2217         u32 pg_sz, lvl, new_sz;
2218         int rc;
2219
2220         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
2221                                  CMDQ_BASE_OPCODE_RESIZE_CQ,
2222                                  sizeof(req));
2223         hwq_attr.sginfo = &cq->sg_info;
2224         hwq_attr.res = res;
2225         hwq_attr.depth = new_cqes;
2226         hwq_attr.stride = sizeof(struct cq_base);
2227         hwq_attr.type = HWQ_TYPE_QUEUE;
2228         rc = bnxt_qplib_alloc_init_hwq(&cq->resize_hwq, &hwq_attr);
2229         if (rc)
2230                 return rc;
2231
2232         req.cq_cid = cpu_to_le32(cq->id);
2233         pbl = &cq->resize_hwq.pbl[PBL_LVL_0];
2234         pg_sz = bnxt_qplib_base_pg_size(&cq->resize_hwq);
2235         lvl = (cq->resize_hwq.level << CMDQ_RESIZE_CQ_LVL_SFT) &
2236                                        CMDQ_RESIZE_CQ_LVL_MASK;
2237         new_sz = (new_cqes << CMDQ_RESIZE_CQ_NEW_CQ_SIZE_SFT) &
2238                   CMDQ_RESIZE_CQ_NEW_CQ_SIZE_MASK;
2239         req.new_cq_size_pg_size_lvl = cpu_to_le32(new_sz | pg_sz | lvl);
2240         req.new_pbl = cpu_to_le64(pbl->pg_map_arr[0]);
2241
2242         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
2243                                 sizeof(resp), 0);
2244         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
2245         return rc;
2246 }
2247
2248 int bnxt_qplib_destroy_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
2249 {
2250         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
2251         struct creq_destroy_cq_resp resp = {};
2252         struct bnxt_qplib_cmdqmsg msg = {};
2253         struct cmdq_destroy_cq req = {};
2254         u16 total_cnq_events;
2255         int rc;
2256
2257         bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,
2258                                  CMDQ_BASE_OPCODE_DESTROY_CQ,
2259                                  sizeof(req));
2260
2261         req.cq_cid = cpu_to_le32(cq->id);
2262         bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, NULL, sizeof(req),
2263                                 sizeof(resp), 0);
2264         rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);
2265         if (rc)
2266                 return rc;
2267         total_cnq_events = le16_to_cpu(resp.total_cnq_events);
2268         __wait_for_all_nqes(cq, total_cnq_events);
2269         bnxt_qplib_free_hwq(res, &cq->hwq);
2270         return 0;
2271 }
2272
2273 static int __flush_sq(struct bnxt_qplib_q *sq, struct bnxt_qplib_qp *qp,
2274                       struct bnxt_qplib_cqe **pcqe, int *budget)
2275 {
2276         struct bnxt_qplib_cqe *cqe;
2277         u32 start, last;
2278         int rc = 0;
2279
2280         /* Now complete all outstanding SQEs with FLUSHED_ERR */
2281         start = sq->swq_start;
2282         cqe = *pcqe;
2283         while (*budget) {
2284                 last = sq->swq_last;
2285                 if (start == last)
2286                         break;
2287                 /* Skip the FENCE WQE completions */
2288                 if (sq->swq[last].wr_id == BNXT_QPLIB_FENCE_WRID) {
2289                         bnxt_qplib_cancel_phantom_processing(qp);
2290                         goto skip_compl;
2291                 }
2292                 memset(cqe, 0, sizeof(*cqe));
2293                 cqe->status = CQ_REQ_STATUS_WORK_REQUEST_FLUSHED_ERR;
2294                 cqe->opcode = CQ_BASE_CQE_TYPE_REQ;
2295                 cqe->qp_handle = (u64)(unsigned long)qp;
2296                 cqe->wr_id = sq->swq[last].wr_id;
2297                 cqe->src_qp = qp->id;
2298                 cqe->type = sq->swq[last].type;
2299                 cqe++;
2300                 (*budget)--;
2301 skip_compl:
2302                 bnxt_qplib_hwq_incr_cons(sq->hwq.max_elements, &sq->hwq.cons,
2303                                          sq->swq[last].slots, &sq->dbinfo.flags);
2304                 sq->swq_last = sq->swq[last].next_idx;
2305         }
2306         *pcqe = cqe;
2307         if (!(*budget) && sq->swq_last != start)
2308                 /* Out of budget */
2309                 rc = -EAGAIN;
2310
2311         return rc;
2312 }
2313
2314 static int __flush_rq(struct bnxt_qplib_q *rq, struct bnxt_qplib_qp *qp,
2315                       struct bnxt_qplib_cqe **pcqe, int *budget)
2316 {
2317         struct bnxt_qplib_cqe *cqe;
2318         u32 start, last;
2319         int opcode = 0;
2320         int rc = 0;
2321
2322         switch (qp->type) {
2323         case CMDQ_CREATE_QP1_TYPE_GSI:
2324                 opcode = CQ_BASE_CQE_TYPE_RES_RAWETH_QP1;
2325                 break;
2326         case CMDQ_CREATE_QP_TYPE_RC:
2327                 opcode = CQ_BASE_CQE_TYPE_RES_RC;
2328                 break;
2329         case CMDQ_CREATE_QP_TYPE_UD:
2330         case CMDQ_CREATE_QP_TYPE_GSI:
2331                 opcode = CQ_BASE_CQE_TYPE_RES_UD;
2332                 break;
2333         }
2334
2335         /* Flush the rest of the RQ */
2336         start = rq->swq_start;
2337         cqe = *pcqe;
2338         while (*budget) {
2339                 last = rq->swq_last;
2340                 if (last == start)
2341                         break;
2342                 memset(cqe, 0, sizeof(*cqe));
2343                 cqe->status =
2344                     CQ_RES_RC_STATUS_WORK_REQUEST_FLUSHED_ERR;
2345                 cqe->opcode = opcode;
2346                 cqe->qp_handle = (unsigned long)qp;
2347                 cqe->wr_id = rq->swq[last].wr_id;
2348                 cqe++;
2349                 (*budget)--;
2350                 bnxt_qplib_hwq_incr_cons(rq->hwq.max_elements, &rq->hwq.cons,
2351                                          rq->swq[last].slots, &rq->dbinfo.flags);
2352                 rq->swq_last = rq->swq[last].next_idx;
2353         }
2354         *pcqe = cqe;
2355         if (!*budget && rq->swq_last != start)
2356                 /* Out of budget */
2357                 rc = -EAGAIN;
2358
2359         return rc;
2360 }
2361
2362 void bnxt_qplib_mark_qp_error(void *qp_handle)
2363 {
2364         struct bnxt_qplib_qp *qp = qp_handle;
2365
2366         if (!qp)
2367                 return;
2368
2369         /* Must block new posting of SQ and RQ */
2370         qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
2371         bnxt_qplib_cancel_phantom_processing(qp);
2372 }
2373
2374 /* Note: SQE is valid from sw_sq_cons up to cqe_sq_cons (exclusive)
2375  *       CQE is track from sw_cq_cons to max_element but valid only if VALID=1
2376  */
2377 static int do_wa9060(struct bnxt_qplib_qp *qp, struct bnxt_qplib_cq *cq,
2378                      u32 cq_cons, u32 swq_last, u32 cqe_sq_cons)
2379 {
2380         u32 peek_sw_cq_cons, peek_sq_cons_idx, peek_flags;
2381         struct bnxt_qplib_q *sq = &qp->sq;
2382         struct cq_req *peek_req_hwcqe;
2383         struct bnxt_qplib_qp *peek_qp;
2384         struct bnxt_qplib_q *peek_sq;
2385         struct bnxt_qplib_swq *swq;
2386         struct cq_base *peek_hwcqe;
2387         int i, rc = 0;
2388
2389         /* Normal mode */
2390         /* Check for the psn_search marking before completing */
2391         swq = &sq->swq[swq_last];
2392         if (swq->psn_search &&
2393             le32_to_cpu(swq->psn_search->flags_next_psn) & 0x80000000) {
2394                 /* Unmark */
2395                 swq->psn_search->flags_next_psn = cpu_to_le32
2396                         (le32_to_cpu(swq->psn_search->flags_next_psn)
2397                                      & ~0x80000000);
2398                 dev_dbg(&cq->hwq.pdev->dev,
2399                         "FP: Process Req cq_cons=0x%x qp=0x%x sq cons sw=0x%x cqe=0x%x marked!\n",
2400                         cq_cons, qp->id, swq_last, cqe_sq_cons);
2401                 sq->condition = true;
2402                 sq->send_phantom = true;
2403
2404                 /* TODO: Only ARM if the previous SQE is ARMALL */
2405                 bnxt_qplib_ring_db(&cq->dbinfo, DBC_DBC_TYPE_CQ_ARMALL);
2406                 rc = -EAGAIN;
2407                 goto out;
2408         }
2409         if (sq->condition) {
2410                 /* Peek at the completions */
2411                 peek_flags = cq->dbinfo.flags;
2412                 peek_sw_cq_cons = cq_cons;
2413                 i = cq->hwq.max_elements;
2414                 while (i--) {
2415                         peek_hwcqe = bnxt_qplib_get_qe(&cq->hwq,
2416                                                        peek_sw_cq_cons, NULL);
2417                         /* If the next hwcqe is VALID */
2418                         if (CQE_CMP_VALID(peek_hwcqe, peek_flags)) {
2419                         /*
2420                          * The valid test of the entry must be done first before
2421                          * reading any further.
2422                          */
2423                                 dma_rmb();
2424                                 /* If the next hwcqe is a REQ */
2425                                 if ((peek_hwcqe->cqe_type_toggle &
2426                                     CQ_BASE_CQE_TYPE_MASK) ==
2427                                     CQ_BASE_CQE_TYPE_REQ) {
2428                                         peek_req_hwcqe = (struct cq_req *)
2429                                                          peek_hwcqe;
2430                                         peek_qp = (struct bnxt_qplib_qp *)
2431                                                 ((unsigned long)
2432                                                  le64_to_cpu
2433                                                  (peek_req_hwcqe->qp_handle));
2434                                         peek_sq = &peek_qp->sq;
2435                                         peek_sq_cons_idx =
2436                                                 ((le16_to_cpu(
2437                                                   peek_req_hwcqe->sq_cons_idx)
2438                                                   - 1) % sq->max_wqe);
2439                                         /* If the hwcqe's sq's wr_id matches */
2440                                         if (peek_sq == sq &&
2441                                             sq->swq[peek_sq_cons_idx].wr_id ==
2442                                             BNXT_QPLIB_FENCE_WRID) {
2443                                                 /*
2444                                                  *  Unbreak only if the phantom
2445                                                  *  comes back
2446                                                  */
2447                                                 dev_dbg(&cq->hwq.pdev->dev,
2448                                                         "FP: Got Phantom CQE\n");
2449                                                 sq->condition = false;
2450                                                 sq->single = true;
2451                                                 rc = 0;
2452                                                 goto out;
2453                                         }
2454                                 }
2455                                 /* Valid but not the phantom, so keep looping */
2456                         } else {
2457                                 /* Not valid yet, just exit and wait */
2458                                 rc = -EINVAL;
2459                                 goto out;
2460                         }
2461                         bnxt_qplib_hwq_incr_cons(cq->hwq.max_elements,
2462                                                  &peek_sw_cq_cons,
2463                                                  1, &peek_flags);
2464                 }
2465                 dev_err(&cq->hwq.pdev->dev,
2466                         "Should not have come here! cq_cons=0x%x qp=0x%x sq cons sw=0x%x hw=0x%x\n",
2467                         cq_cons, qp->id, swq_last, cqe_sq_cons);
2468                 rc = -EINVAL;
2469         }
2470 out:
2471         return rc;
2472 }
2473
2474 static int bnxt_qplib_cq_process_req(struct bnxt_qplib_cq *cq,
2475                                      struct cq_req *hwcqe,
2476                                      struct bnxt_qplib_cqe **pcqe, int *budget,
2477                                      u32 cq_cons, struct bnxt_qplib_qp **lib_qp)
2478 {
2479         struct bnxt_qplib_swq *swq;
2480         struct bnxt_qplib_cqe *cqe;
2481         struct bnxt_qplib_qp *qp;
2482         struct bnxt_qplib_q *sq;
2483         u32 cqe_sq_cons;
2484         int rc = 0;
2485
2486         qp = (struct bnxt_qplib_qp *)((unsigned long)
2487                                       le64_to_cpu(hwcqe->qp_handle));
2488         if (!qp) {
2489                 dev_err(&cq->hwq.pdev->dev,
2490                         "FP: Process Req qp is NULL\n");
2491                 return -EINVAL;
2492         }
2493         sq = &qp->sq;
2494
2495         cqe_sq_cons = le16_to_cpu(hwcqe->sq_cons_idx) % sq->max_wqe;
2496         if (qp->sq.flushed) {
2497                 dev_dbg(&cq->hwq.pdev->dev,
2498                         "%s: QP in Flush QP = %p\n", __func__, qp);
2499                 goto done;
2500         }
2501         /* Require to walk the sq's swq to fabricate CQEs for all previously
2502          * signaled SWQEs due to CQE aggregation from the current sq cons
2503          * to the cqe_sq_cons
2504          */
2505         cqe = *pcqe;
2506         while (*budget) {
2507                 if (sq->swq_last == cqe_sq_cons)
2508                         /* Done */
2509                         break;
2510
2511                 swq = &sq->swq[sq->swq_last];
2512                 memset(cqe, 0, sizeof(*cqe));
2513                 cqe->opcode = CQ_BASE_CQE_TYPE_REQ;
2514                 cqe->qp_handle = (u64)(unsigned long)qp;
2515                 cqe->src_qp = qp->id;
2516                 cqe->wr_id = swq->wr_id;
2517                 if (cqe->wr_id == BNXT_QPLIB_FENCE_WRID)
2518                         goto skip;
2519                 cqe->type = swq->type;
2520
2521                 /* For the last CQE, check for status.  For errors, regardless
2522                  * of the request being signaled or not, it must complete with
2523                  * the hwcqe error status
2524                  */
2525                 if (swq->next_idx == cqe_sq_cons &&
2526                     hwcqe->status != CQ_REQ_STATUS_OK) {
2527                         cqe->status = hwcqe->status;
2528                         dev_err(&cq->hwq.pdev->dev,
2529                                 "FP: CQ Processed Req wr_id[%d] = 0x%llx with status 0x%x\n",
2530                                 sq->swq_last, cqe->wr_id, cqe->status);
2531                         cqe++;
2532                         (*budget)--;
2533                         bnxt_qplib_mark_qp_error(qp);
2534                         /* Add qp to flush list of the CQ */
2535                         bnxt_qplib_add_flush_qp(qp);
2536                 } else {
2537                         /* Before we complete, do WA 9060 */
2538                         if (do_wa9060(qp, cq, cq_cons, sq->swq_last,
2539                                       cqe_sq_cons)) {
2540                                 *lib_qp = qp;
2541                                 goto out;
2542                         }
2543                         if (swq->flags & SQ_SEND_FLAGS_SIGNAL_COMP) {
2544                                 cqe->status = CQ_REQ_STATUS_OK;
2545                                 cqe++;
2546                                 (*budget)--;
2547                         }
2548                 }
2549 skip:
2550                 bnxt_qplib_hwq_incr_cons(sq->hwq.max_elements, &sq->hwq.cons,
2551                                          swq->slots, &sq->dbinfo.flags);
2552                 sq->swq_last = swq->next_idx;
2553                 if (sq->single)
2554                         break;
2555         }
2556 out:
2557         *pcqe = cqe;
2558         if (sq->swq_last != cqe_sq_cons) {
2559                 /* Out of budget */
2560                 rc = -EAGAIN;
2561                 goto done;
2562         }
2563         /*
2564          * Back to normal completion mode only after it has completed all of
2565          * the WC for this CQE
2566          */
2567         sq->single = false;
2568 done:
2569         return rc;
2570 }
2571
2572 static void bnxt_qplib_release_srqe(struct bnxt_qplib_srq *srq, u32 tag)
2573 {
2574         spin_lock(&srq->hwq.lock);
2575         srq->swq[srq->last_idx].next_idx = (int)tag;
2576         srq->last_idx = (int)tag;
2577         srq->swq[srq->last_idx].next_idx = -1;
2578         bnxt_qplib_hwq_incr_cons(srq->hwq.max_elements, &srq->hwq.cons,
2579                                  srq->dbinfo.max_slot, &srq->dbinfo.flags);
2580         spin_unlock(&srq->hwq.lock);
2581 }
2582
2583 static int bnxt_qplib_cq_process_res_rc(struct bnxt_qplib_cq *cq,
2584                                         struct cq_res_rc *hwcqe,
2585                                         struct bnxt_qplib_cqe **pcqe,
2586                                         int *budget)
2587 {
2588         struct bnxt_qplib_srq *srq;
2589         struct bnxt_qplib_cqe *cqe;
2590         struct bnxt_qplib_qp *qp;
2591         struct bnxt_qplib_q *rq;
2592         u32 wr_id_idx;
2593
2594         qp = (struct bnxt_qplib_qp *)((unsigned long)
2595                                       le64_to_cpu(hwcqe->qp_handle));
2596         if (!qp) {
2597                 dev_err(&cq->hwq.pdev->dev, "process_cq RC qp is NULL\n");
2598                 return -EINVAL;
2599         }
2600         if (qp->rq.flushed) {
2601                 dev_dbg(&cq->hwq.pdev->dev,
2602                         "%s: QP in Flush QP = %p\n", __func__, qp);
2603                 return 0;
2604         }
2605
2606         cqe = *pcqe;
2607         cqe->opcode = hwcqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK;
2608         cqe->length = le32_to_cpu(hwcqe->length);
2609         cqe->invrkey = le32_to_cpu(hwcqe->imm_data_or_inv_r_key);
2610         cqe->mr_handle = le64_to_cpu(hwcqe->mr_handle);
2611         cqe->flags = le16_to_cpu(hwcqe->flags);
2612         cqe->status = hwcqe->status;
2613         cqe->qp_handle = (u64)(unsigned long)qp;
2614
2615         wr_id_idx = le32_to_cpu(hwcqe->srq_or_rq_wr_id) &
2616                                 CQ_RES_RC_SRQ_OR_RQ_WR_ID_MASK;
2617         if (cqe->flags & CQ_RES_RC_FLAGS_SRQ_SRQ) {
2618                 srq = qp->srq;
2619                 if (!srq)
2620                         return -EINVAL;
2621                 if (wr_id_idx >= srq->hwq.max_elements) {
2622                         dev_err(&cq->hwq.pdev->dev,
2623                                 "FP: CQ Process RC wr_id idx 0x%x exceeded SRQ max 0x%x\n",
2624                                 wr_id_idx, srq->hwq.max_elements);
2625                         return -EINVAL;
2626                 }
2627                 cqe->wr_id = srq->swq[wr_id_idx].wr_id;
2628                 bnxt_qplib_release_srqe(srq, wr_id_idx);
2629                 cqe++;
2630                 (*budget)--;
2631                 *pcqe = cqe;
2632         } else {
2633                 struct bnxt_qplib_swq *swq;
2634
2635                 rq = &qp->rq;
2636                 if (wr_id_idx > (rq->max_wqe - 1)) {
2637                         dev_err(&cq->hwq.pdev->dev,
2638                                 "FP: CQ Process RC wr_id idx 0x%x exceeded RQ max 0x%x\n",
2639                                 wr_id_idx, rq->max_wqe);
2640                         return -EINVAL;
2641                 }
2642                 if (wr_id_idx != rq->swq_last)
2643                         return -EINVAL;
2644                 swq = &rq->swq[rq->swq_last];
2645                 cqe->wr_id = swq->wr_id;
2646                 cqe++;
2647                 (*budget)--;
2648                 bnxt_qplib_hwq_incr_cons(rq->hwq.max_elements, &rq->hwq.cons,
2649                                          swq->slots, &rq->dbinfo.flags);
2650                 rq->swq_last = swq->next_idx;
2651                 *pcqe = cqe;
2652
2653                 if (hwcqe->status != CQ_RES_RC_STATUS_OK) {
2654                         qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
2655                         /* Add qp to flush list of the CQ */
2656                         bnxt_qplib_add_flush_qp(qp);
2657                 }
2658         }
2659
2660         return 0;
2661 }
2662
2663 static int bnxt_qplib_cq_process_res_ud(struct bnxt_qplib_cq *cq,
2664                                         struct cq_res_ud *hwcqe,
2665                                         struct bnxt_qplib_cqe **pcqe,
2666                                         int *budget)
2667 {
2668         struct bnxt_qplib_srq *srq;
2669         struct bnxt_qplib_cqe *cqe;
2670         struct bnxt_qplib_qp *qp;
2671         struct bnxt_qplib_q *rq;
2672         u32 wr_id_idx;
2673
2674         qp = (struct bnxt_qplib_qp *)((unsigned long)
2675                                       le64_to_cpu(hwcqe->qp_handle));
2676         if (!qp) {
2677                 dev_err(&cq->hwq.pdev->dev, "process_cq UD qp is NULL\n");
2678                 return -EINVAL;
2679         }
2680         if (qp->rq.flushed) {
2681                 dev_dbg(&cq->hwq.pdev->dev,
2682                         "%s: QP in Flush QP = %p\n", __func__, qp);
2683                 return 0;
2684         }
2685         cqe = *pcqe;
2686         cqe->opcode = hwcqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK;
2687         cqe->length = le16_to_cpu(hwcqe->length) & CQ_RES_UD_LENGTH_MASK;
2688         cqe->cfa_meta = le16_to_cpu(hwcqe->cfa_metadata);
2689         cqe->invrkey = le32_to_cpu(hwcqe->imm_data);
2690         cqe->flags = le16_to_cpu(hwcqe->flags);
2691         cqe->status = hwcqe->status;
2692         cqe->qp_handle = (u64)(unsigned long)qp;
2693         /*FIXME: Endianness fix needed for smace */
2694         memcpy(cqe->smac, hwcqe->src_mac, ETH_ALEN);
2695         wr_id_idx = le32_to_cpu(hwcqe->src_qp_high_srq_or_rq_wr_id)
2696                                 & CQ_RES_UD_SRQ_OR_RQ_WR_ID_MASK;
2697         cqe->src_qp = le16_to_cpu(hwcqe->src_qp_low) |
2698                                   ((le32_to_cpu(
2699                                   hwcqe->src_qp_high_srq_or_rq_wr_id) &
2700                                  CQ_RES_UD_SRC_QP_HIGH_MASK) >> 8);
2701
2702         if (cqe->flags & CQ_RES_RC_FLAGS_SRQ_SRQ) {
2703                 srq = qp->srq;
2704                 if (!srq)
2705                         return -EINVAL;
2706
2707                 if (wr_id_idx >= srq->hwq.max_elements) {
2708                         dev_err(&cq->hwq.pdev->dev,
2709                                 "FP: CQ Process UD wr_id idx 0x%x exceeded SRQ max 0x%x\n",
2710                                 wr_id_idx, srq->hwq.max_elements);
2711                         return -EINVAL;
2712                 }
2713                 cqe->wr_id = srq->swq[wr_id_idx].wr_id;
2714                 bnxt_qplib_release_srqe(srq, wr_id_idx);
2715                 cqe++;
2716                 (*budget)--;
2717                 *pcqe = cqe;
2718         } else {
2719                 struct bnxt_qplib_swq *swq;
2720
2721                 rq = &qp->rq;
2722                 if (wr_id_idx > (rq->max_wqe - 1)) {
2723                         dev_err(&cq->hwq.pdev->dev,
2724                                 "FP: CQ Process UD wr_id idx 0x%x exceeded RQ max 0x%x\n",
2725                                 wr_id_idx, rq->max_wqe);
2726                         return -EINVAL;
2727                 }
2728
2729                 if (rq->swq_last != wr_id_idx)
2730                         return -EINVAL;
2731                 swq = &rq->swq[rq->swq_last];
2732                 cqe->wr_id = swq->wr_id;
2733                 cqe++;
2734                 (*budget)--;
2735                 bnxt_qplib_hwq_incr_cons(rq->hwq.max_elements, &rq->hwq.cons,
2736                                          swq->slots, &rq->dbinfo.flags);
2737                 rq->swq_last = swq->next_idx;
2738                 *pcqe = cqe;
2739
2740                 if (hwcqe->status != CQ_RES_RC_STATUS_OK) {
2741                         qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
2742                         /* Add qp to flush list of the CQ */
2743                         bnxt_qplib_add_flush_qp(qp);
2744                 }
2745         }
2746
2747         return 0;
2748 }
2749
2750 bool bnxt_qplib_is_cq_empty(struct bnxt_qplib_cq *cq)
2751 {
2752         struct cq_base *hw_cqe;
2753         bool rc = true;
2754
2755         hw_cqe = bnxt_qplib_get_qe(&cq->hwq, cq->hwq.cons, NULL);
2756          /* Check for Valid bit. If the CQE is valid, return false */
2757         rc = !CQE_CMP_VALID(hw_cqe, cq->dbinfo.flags);
2758         return rc;
2759 }
2760
2761 static int bnxt_qplib_cq_process_res_raweth_qp1(struct bnxt_qplib_cq *cq,
2762                                                 struct cq_res_raweth_qp1 *hwcqe,
2763                                                 struct bnxt_qplib_cqe **pcqe,
2764                                                 int *budget)
2765 {
2766         struct bnxt_qplib_qp *qp;
2767         struct bnxt_qplib_q *rq;
2768         struct bnxt_qplib_srq *srq;
2769         struct bnxt_qplib_cqe *cqe;
2770         u32 wr_id_idx;
2771
2772         qp = (struct bnxt_qplib_qp *)((unsigned long)
2773                                       le64_to_cpu(hwcqe->qp_handle));
2774         if (!qp) {
2775                 dev_err(&cq->hwq.pdev->dev, "process_cq Raw/QP1 qp is NULL\n");
2776                 return -EINVAL;
2777         }
2778         if (qp->rq.flushed) {
2779                 dev_dbg(&cq->hwq.pdev->dev,
2780                         "%s: QP in Flush QP = %p\n", __func__, qp);
2781                 return 0;
2782         }
2783         cqe = *pcqe;
2784         cqe->opcode = hwcqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK;
2785         cqe->flags = le16_to_cpu(hwcqe->flags);
2786         cqe->qp_handle = (u64)(unsigned long)qp;
2787
2788         wr_id_idx =
2789                 le32_to_cpu(hwcqe->raweth_qp1_payload_offset_srq_or_rq_wr_id)
2790                                 & CQ_RES_RAWETH_QP1_SRQ_OR_RQ_WR_ID_MASK;
2791         cqe->src_qp = qp->id;
2792         if (qp->id == 1 && !cqe->length) {
2793                 /* Add workaround for the length misdetection */
2794                 cqe->length = 296;
2795         } else {
2796                 cqe->length = le16_to_cpu(hwcqe->length);
2797         }
2798         cqe->pkey_index = qp->pkey_index;
2799         memcpy(cqe->smac, qp->smac, 6);
2800
2801         cqe->raweth_qp1_flags = le16_to_cpu(hwcqe->raweth_qp1_flags);
2802         cqe->raweth_qp1_flags2 = le32_to_cpu(hwcqe->raweth_qp1_flags2);
2803         cqe->raweth_qp1_metadata = le32_to_cpu(hwcqe->raweth_qp1_metadata);
2804
2805         if (cqe->flags & CQ_RES_RAWETH_QP1_FLAGS_SRQ_SRQ) {
2806                 srq = qp->srq;
2807                 if (!srq) {
2808                         dev_err(&cq->hwq.pdev->dev,
2809                                 "FP: SRQ used but not defined??\n");
2810                         return -EINVAL;
2811                 }
2812                 if (wr_id_idx >= srq->hwq.max_elements) {
2813                         dev_err(&cq->hwq.pdev->dev,
2814                                 "FP: CQ Process Raw/QP1 wr_id idx 0x%x exceeded SRQ max 0x%x\n",
2815                                 wr_id_idx, srq->hwq.max_elements);
2816                         return -EINVAL;
2817                 }
2818                 cqe->wr_id = srq->swq[wr_id_idx].wr_id;
2819                 bnxt_qplib_release_srqe(srq, wr_id_idx);
2820                 cqe++;
2821                 (*budget)--;
2822                 *pcqe = cqe;
2823         } else {
2824                 struct bnxt_qplib_swq *swq;
2825
2826                 rq = &qp->rq;
2827                 if (wr_id_idx > (rq->max_wqe - 1)) {
2828                         dev_err(&cq->hwq.pdev->dev,
2829                                 "FP: CQ Process Raw/QP1 RQ wr_id idx 0x%x exceeded RQ max 0x%x\n",
2830                                 wr_id_idx, rq->max_wqe);
2831                         return -EINVAL;
2832                 }
2833                 if (rq->swq_last != wr_id_idx)
2834                         return -EINVAL;
2835                 swq = &rq->swq[rq->swq_last];
2836                 cqe->wr_id = swq->wr_id;
2837                 cqe++;
2838                 (*budget)--;
2839                 bnxt_qplib_hwq_incr_cons(rq->hwq.max_elements, &rq->hwq.cons,
2840                                          swq->slots, &rq->dbinfo.flags);
2841                 rq->swq_last = swq->next_idx;
2842                 *pcqe = cqe;
2843
2844                 if (hwcqe->status != CQ_RES_RC_STATUS_OK) {
2845                         qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
2846                         /* Add qp to flush list of the CQ */
2847                         bnxt_qplib_add_flush_qp(qp);
2848                 }
2849         }
2850
2851         return 0;
2852 }
2853
2854 static int bnxt_qplib_cq_process_terminal(struct bnxt_qplib_cq *cq,
2855                                           struct cq_terminal *hwcqe,
2856                                           struct bnxt_qplib_cqe **pcqe,
2857                                           int *budget)
2858 {
2859         struct bnxt_qplib_qp *qp;
2860         struct bnxt_qplib_q *sq, *rq;
2861         struct bnxt_qplib_cqe *cqe;
2862         u32 swq_last = 0, cqe_cons;
2863         int rc = 0;
2864
2865         /* Check the Status */
2866         if (hwcqe->status != CQ_TERMINAL_STATUS_OK)
2867                 dev_warn(&cq->hwq.pdev->dev,
2868                          "FP: CQ Process Terminal Error status = 0x%x\n",
2869                          hwcqe->status);
2870
2871         qp = (struct bnxt_qplib_qp *)((unsigned long)
2872                                       le64_to_cpu(hwcqe->qp_handle));
2873         if (!qp)
2874                 return -EINVAL;
2875
2876         /* Must block new posting of SQ and RQ */
2877         qp->state = CMDQ_MODIFY_QP_NEW_STATE_ERR;
2878
2879         sq = &qp->sq;
2880         rq = &qp->rq;
2881
2882         cqe_cons = le16_to_cpu(hwcqe->sq_cons_idx);
2883         if (cqe_cons == 0xFFFF)
2884                 goto do_rq;
2885         cqe_cons %= sq->max_wqe;
2886
2887         if (qp->sq.flushed) {
2888                 dev_dbg(&cq->hwq.pdev->dev,
2889                         "%s: QP in Flush QP = %p\n", __func__, qp);
2890                 goto sq_done;
2891         }
2892
2893         /* Terminal CQE can also include aggregated successful CQEs prior.
2894          * So we must complete all CQEs from the current sq's cons to the
2895          * cq_cons with status OK
2896          */
2897         cqe = *pcqe;
2898         while (*budget) {
2899                 swq_last = sq->swq_last;
2900                 if (swq_last == cqe_cons)
2901                         break;
2902                 if (sq->swq[swq_last].flags & SQ_SEND_FLAGS_SIGNAL_COMP) {
2903                         memset(cqe, 0, sizeof(*cqe));
2904                         cqe->status = CQ_REQ_STATUS_OK;
2905                         cqe->opcode = CQ_BASE_CQE_TYPE_REQ;
2906                         cqe->qp_handle = (u64)(unsigned long)qp;
2907                         cqe->src_qp = qp->id;
2908                         cqe->wr_id = sq->swq[swq_last].wr_id;
2909                         cqe->type = sq->swq[swq_last].type;
2910                         cqe++;
2911                         (*budget)--;
2912                 }
2913                 bnxt_qplib_hwq_incr_cons(sq->hwq.max_elements, &sq->hwq.cons,
2914                                          sq->swq[swq_last].slots, &sq->dbinfo.flags);
2915                 sq->swq_last = sq->swq[swq_last].next_idx;
2916         }
2917         *pcqe = cqe;
2918         if (!(*budget) && swq_last != cqe_cons) {
2919                 /* Out of budget */
2920                 rc = -EAGAIN;
2921                 goto sq_done;
2922         }
2923 sq_done:
2924         if (rc)
2925                 return rc;
2926 do_rq:
2927         cqe_cons = le16_to_cpu(hwcqe->rq_cons_idx);
2928         if (cqe_cons == 0xFFFF) {
2929                 goto done;
2930         } else if (cqe_cons > rq->max_wqe - 1) {
2931                 dev_err(&cq->hwq.pdev->dev,
2932                         "FP: CQ Processed terminal reported rq_cons_idx 0x%x exceeds max 0x%x\n",
2933                         cqe_cons, rq->max_wqe);
2934                 rc = -EINVAL;
2935                 goto done;
2936         }
2937
2938         if (qp->rq.flushed) {
2939                 dev_dbg(&cq->hwq.pdev->dev,
2940                         "%s: QP in Flush QP = %p\n", __func__, qp);
2941                 rc = 0;
2942                 goto done;
2943         }
2944
2945         /* Terminal CQE requires all posted RQEs to complete with FLUSHED_ERR
2946          * from the current rq->cons to the rq->prod regardless what the
2947          * rq->cons the terminal CQE indicates
2948          */
2949
2950         /* Add qp to flush list of the CQ */
2951         bnxt_qplib_add_flush_qp(qp);
2952 done:
2953         return rc;
2954 }
2955
2956 static int bnxt_qplib_cq_process_cutoff(struct bnxt_qplib_cq *cq,
2957                                         struct cq_cutoff *hwcqe)
2958 {
2959         /* Check the Status */
2960         if (hwcqe->status != CQ_CUTOFF_STATUS_OK) {
2961                 dev_err(&cq->hwq.pdev->dev,
2962                         "FP: CQ Process Cutoff Error status = 0x%x\n",
2963                         hwcqe->status);
2964                 return -EINVAL;
2965         }
2966         clear_bit(CQ_FLAGS_RESIZE_IN_PROG, &cq->flags);
2967         wake_up_interruptible(&cq->waitq);
2968
2969         return 0;
2970 }
2971
2972 int bnxt_qplib_process_flush_list(struct bnxt_qplib_cq *cq,
2973                                   struct bnxt_qplib_cqe *cqe,
2974                                   int num_cqes)
2975 {
2976         struct bnxt_qplib_qp *qp = NULL;
2977         u32 budget = num_cqes;
2978         unsigned long flags;
2979
2980         spin_lock_irqsave(&cq->flush_lock, flags);
2981         list_for_each_entry(qp, &cq->sqf_head, sq_flush) {
2982                 dev_dbg(&cq->hwq.pdev->dev, "FP: Flushing SQ QP= %p\n", qp);
2983                 __flush_sq(&qp->sq, qp, &cqe, &budget);
2984         }
2985
2986         list_for_each_entry(qp, &cq->rqf_head, rq_flush) {
2987                 dev_dbg(&cq->hwq.pdev->dev, "FP: Flushing RQ QP= %p\n", qp);
2988                 __flush_rq(&qp->rq, qp, &cqe, &budget);
2989         }
2990         spin_unlock_irqrestore(&cq->flush_lock, flags);
2991
2992         return num_cqes - budget;
2993 }
2994
2995 int bnxt_qplib_poll_cq(struct bnxt_qplib_cq *cq, struct bnxt_qplib_cqe *cqe,
2996                        int num_cqes, struct bnxt_qplib_qp **lib_qp)
2997 {
2998         struct cq_base *hw_cqe;
2999         int budget, rc = 0;
3000         u32 hw_polled = 0;
3001         u8 type;
3002
3003         budget = num_cqes;
3004
3005         while (budget) {
3006                 hw_cqe = bnxt_qplib_get_qe(&cq->hwq, cq->hwq.cons, NULL);
3007
3008                 /* Check for Valid bit */
3009                 if (!CQE_CMP_VALID(hw_cqe, cq->dbinfo.flags))
3010                         break;
3011
3012                 /*
3013                  * The valid test of the entry must be done first before
3014                  * reading any further.
3015                  */
3016                 dma_rmb();
3017                 /* From the device's respective CQE format to qplib_wc*/
3018                 type = hw_cqe->cqe_type_toggle & CQ_BASE_CQE_TYPE_MASK;
3019                 switch (type) {
3020                 case CQ_BASE_CQE_TYPE_REQ:
3021                         rc = bnxt_qplib_cq_process_req(cq,
3022                                                        (struct cq_req *)hw_cqe,
3023                                                        &cqe, &budget,
3024                                                        cq->hwq.cons, lib_qp);
3025                         break;
3026                 case CQ_BASE_CQE_TYPE_RES_RC:
3027                         rc = bnxt_qplib_cq_process_res_rc(cq,
3028                                                           (struct cq_res_rc *)
3029                                                           hw_cqe, &cqe,
3030                                                           &budget);
3031                         break;
3032                 case CQ_BASE_CQE_TYPE_RES_UD:
3033                         rc = bnxt_qplib_cq_process_res_ud
3034                                         (cq, (struct cq_res_ud *)hw_cqe, &cqe,
3035                                          &budget);
3036                         break;
3037                 case CQ_BASE_CQE_TYPE_RES_RAWETH_QP1:
3038                         rc = bnxt_qplib_cq_process_res_raweth_qp1
3039                                         (cq, (struct cq_res_raweth_qp1 *)
3040                                          hw_cqe, &cqe, &budget);
3041                         break;
3042                 case CQ_BASE_CQE_TYPE_TERMINAL:
3043                         rc = bnxt_qplib_cq_process_terminal
3044                                         (cq, (struct cq_terminal *)hw_cqe,
3045                                          &cqe, &budget);
3046                         break;
3047                 case CQ_BASE_CQE_TYPE_CUT_OFF:
3048                         bnxt_qplib_cq_process_cutoff
3049                                         (cq, (struct cq_cutoff *)hw_cqe);
3050                         /* Done processing this CQ */
3051                         goto exit;
3052                 default:
3053                         dev_err(&cq->hwq.pdev->dev,
3054                                 "process_cq unknown type 0x%lx\n",
3055                                 hw_cqe->cqe_type_toggle &
3056                                 CQ_BASE_CQE_TYPE_MASK);
3057                         rc = -EINVAL;
3058                         break;
3059                 }
3060                 if (rc < 0) {
3061                         if (rc == -EAGAIN)
3062                                 break;
3063                         /* Error while processing the CQE, just skip to the
3064                          * next one
3065                          */
3066                         if (type != CQ_BASE_CQE_TYPE_TERMINAL)
3067                                 dev_err(&cq->hwq.pdev->dev,
3068                                         "process_cqe error rc = 0x%x\n", rc);
3069                 }
3070                 hw_polled++;
3071                 bnxt_qplib_hwq_incr_cons(cq->hwq.max_elements, &cq->hwq.cons,
3072                                          1, &cq->dbinfo.flags);
3073
3074         }
3075         if (hw_polled)
3076                 bnxt_qplib_ring_db(&cq->dbinfo, DBC_DBC_TYPE_CQ);
3077 exit:
3078         return num_cqes - budget;
3079 }
3080
3081 void bnxt_qplib_req_notify_cq(struct bnxt_qplib_cq *cq, u32 arm_type)
3082 {
3083         cq->dbinfo.toggle = cq->toggle;
3084         if (arm_type)
3085                 bnxt_qplib_ring_db(&cq->dbinfo, arm_type);
3086         /* Using cq->arm_state variable to track whether to issue cq handler */
3087         atomic_set(&cq->arm_state, 1);
3088 }
3089
3090 void bnxt_qplib_flush_cqn_wq(struct bnxt_qplib_qp *qp)
3091 {
3092         flush_workqueue(qp->scq->nq->cqn_wq);
3093         if (qp->scq != qp->rcq)
3094                 flush_workqueue(qp->rcq->nq->cqn_wq);
3095 }