drivers/infiniband/hw/irdma/verbs.c

   1 // SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB
   2 /* Copyright (c) 2015 - 2021 Intel Corporation */
   3 #include "main.h"
   4
   5 /**
   6  * irdma_query_device - get device attributes
   7  * @ibdev: device pointer from stack
   8  * @props: returning device attributes
   9  * @udata: user data
  10  */
  11 static int irdma_query_device(struct ib_device *ibdev,
  12                               struct ib_device_attr *props,
  13                               struct ib_udata *udata)
  14 {
  15         struct irdma_device *iwdev = to_iwdev(ibdev);
  16         struct irdma_pci_f *rf = iwdev->rf;
  17         struct pci_dev *pcidev = iwdev->rf->pcidev;
  18         struct irdma_hw_attrs *hw_attrs = &rf->sc_dev.hw_attrs;
  19
  20         if (udata->inlen || udata->outlen)
  21                 return -EINVAL;
  22
  23         memset(props, 0, sizeof(*props));
  24         addrconf_addr_eui48((u8 *)&props->sys_image_guid,
  25                             iwdev->netdev->dev_addr);
  26         props->fw_ver = (u64)irdma_fw_major_ver(&rf->sc_dev) << 32 |
  27                         irdma_fw_minor_ver(&rf->sc_dev);
  28         props->device_cap_flags = IB_DEVICE_MEM_WINDOW |
  29                                   IB_DEVICE_MEM_MGT_EXTENSIONS;
  30         props->kernel_cap_flags = IBK_LOCAL_DMA_LKEY;
  31         props->vendor_id = pcidev->vendor;
  32         props->vendor_part_id = pcidev->device;
  33
  34         props->hw_ver = rf->pcidev->revision;
  35         props->page_size_cap = hw_attrs->page_size_cap;
  36         props->max_mr_size = hw_attrs->max_mr_size;
  37         props->max_qp = rf->max_qp - rf->used_qps;
  38         props->max_qp_wr = hw_attrs->max_qp_wr;
  39         props->max_send_sge = hw_attrs->uk_attrs.max_hw_wq_frags;
  40         props->max_recv_sge = hw_attrs->uk_attrs.max_hw_wq_frags;
  41         props->max_cq = rf->max_cq - rf->used_cqs;
  42         props->max_cqe = rf->max_cqe - 1;
  43         props->max_mr = rf->max_mr - rf->used_mrs;
  44         props->max_mw = props->max_mr;
  45         props->max_pd = rf->max_pd - rf->used_pds;
  46         props->max_sge_rd = hw_attrs->uk_attrs.max_hw_read_sges;
  47         props->max_qp_rd_atom = hw_attrs->max_hw_ird;
  48         props->max_qp_init_rd_atom = hw_attrs->max_hw_ord;
  49         if (rdma_protocol_roce(ibdev, 1)) {
  50                 props->device_cap_flags |= IB_DEVICE_RC_RNR_NAK_GEN;
  51                 props->max_pkeys = IRDMA_PKEY_TBL_SZ;
  52         }
  53
  54         props->max_ah = rf->max_ah;
  55         props->max_mcast_grp = rf->max_mcg;
  56         props->max_mcast_qp_attach = IRDMA_MAX_MGS_PER_CTX;
  57         props->max_total_mcast_qp_attach = rf->max_qp * IRDMA_MAX_MGS_PER_CTX;
  58         props->max_fast_reg_page_list_len = IRDMA_MAX_PAGES_PER_FMR;
  59 #define HCA_CLOCK_TIMESTAMP_MASK 0x1ffff
  60         if (hw_attrs->uk_attrs.hw_rev >= IRDMA_GEN_2)
  61                 props->timestamp_mask = HCA_CLOCK_TIMESTAMP_MASK;
  62
  63         return 0;
  64 }
  65
  66 /**
  67  * irdma_query_port - get port attributes
  68  * @ibdev: device pointer from stack
  69  * @port: port number for query
  70  * @props: returning device attributes
  71  */
  72 static int irdma_query_port(struct ib_device *ibdev, u32 port,
  73                             struct ib_port_attr *props)
  74 {
  75         struct irdma_device *iwdev = to_iwdev(ibdev);
  76         struct net_device *netdev = iwdev->netdev;
  77
  78         /* no need to zero out pros here. done by caller */
  79
  80         props->max_mtu = IB_MTU_4096;
  81         props->active_mtu = ib_mtu_int_to_enum(netdev->mtu);
  82         props->lid = 1;
  83         props->lmc = 0;
  84         props->sm_lid = 0;
  85         props->sm_sl = 0;
  86         if (netif_carrier_ok(netdev) && netif_running(netdev)) {
  87                 props->state = IB_PORT_ACTIVE;
  88                 props->phys_state = IB_PORT_PHYS_STATE_LINK_UP;
  89         } else {
  90                 props->state = IB_PORT_DOWN;
  91                 props->phys_state = IB_PORT_PHYS_STATE_DISABLED;
  92         }
  93
  94         ib_get_eth_speed(ibdev, port, &props->active_speed,
  95                          &props->active_width);
  96
  97         if (rdma_protocol_roce(ibdev, 1)) {
  98                 props->gid_tbl_len = 32;
  99                 props->ip_gids = true;
 100                 props->pkey_tbl_len = IRDMA_PKEY_TBL_SZ;
 101         } else {
 102                 props->gid_tbl_len = 1;
 103         }
 104         props->qkey_viol_cntr = 0;
 105         props->port_cap_flags |= IB_PORT_CM_SUP | IB_PORT_REINIT_SUP;
 106         props->max_msg_sz = iwdev->rf->sc_dev.hw_attrs.max_hw_outbound_msg_size;
 107
 108         return 0;
 109 }
 110
 111 /**
 112  * irdma_disassociate_ucontext - Disassociate user context
 113  * @context: ib user context
 114  */
 115 static void irdma_disassociate_ucontext(struct ib_ucontext *context)
 116 {
 117 }
 118
 119 static int irdma_mmap_legacy(struct irdma_ucontext *ucontext,
 120                              struct vm_area_struct *vma)
 121 {
 122         u64 pfn;
 123
 124         if (vma->vm_pgoff || vma->vm_end - vma->vm_start != PAGE_SIZE)
 125                 return -EINVAL;
 126
 127         vma->vm_private_data = ucontext;
 128         pfn = ((uintptr_t)ucontext->iwdev->rf->sc_dev.hw_regs[IRDMA_DB_ADDR_OFFSET] +
 129                pci_resource_start(ucontext->iwdev->rf->pcidev, 0)) >> PAGE_SHIFT;
 130
 131         return rdma_user_mmap_io(&ucontext->ibucontext, vma, pfn, PAGE_SIZE,
 132                                  pgprot_noncached(vma->vm_page_prot), NULL);
 133 }
 134
 135 static void irdma_mmap_free(struct rdma_user_mmap_entry *rdma_entry)
 136 {
 137         struct irdma_user_mmap_entry *entry = to_irdma_mmap_entry(rdma_entry);
 138
 139         kfree(entry);
 140 }
 141
 142 static struct rdma_user_mmap_entry*
 143 irdma_user_mmap_entry_insert(struct irdma_ucontext *ucontext, u64 bar_offset,
 144                              enum irdma_mmap_flag mmap_flag, u64 *mmap_offset)
 145 {
 146         struct irdma_user_mmap_entry *entry = kzalloc(sizeof(*entry), GFP_KERNEL);
 147         int ret;
 148
 149         if (!entry)
 150                 return NULL;
 151
 152         entry->bar_offset = bar_offset;
 153         entry->mmap_flag = mmap_flag;
 154
 155         ret = rdma_user_mmap_entry_insert(&ucontext->ibucontext,
 156                                           &entry->rdma_entry, PAGE_SIZE);
 157         if (ret) {
 158                 kfree(entry);
 159                 return NULL;
 160         }
 161         *mmap_offset = rdma_user_mmap_get_offset(&entry->rdma_entry);
 162
 163         return &entry->rdma_entry;
 164 }
 165
 166 /**
 167  * irdma_mmap - user memory map
 168  * @context: context created during alloc
 169  * @vma: kernel info for user memory map
 170  */
 171 static int irdma_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
 172 {
 173         struct rdma_user_mmap_entry *rdma_entry;
 174         struct irdma_user_mmap_entry *entry;
 175         struct irdma_ucontext *ucontext;
 176         u64 pfn;
 177         int ret;
 178
 179         ucontext = to_ucontext(context);
 180
 181         /* Legacy support for libi40iw with hard-coded mmap key */
 182         if (ucontext->legacy_mode)
 183                 return irdma_mmap_legacy(ucontext, vma);
 184
 185         rdma_entry = rdma_user_mmap_entry_get(&ucontext->ibucontext, vma);
 186         if (!rdma_entry) {
 187                 ibdev_dbg(&ucontext->iwdev->ibdev,
 188                           "VERBS: pgoff[0x%lx] does not have valid entry\n",
 189                           vma->vm_pgoff);
 190                 return -EINVAL;
 191         }
 192
 193         entry = to_irdma_mmap_entry(rdma_entry);
 194         ibdev_dbg(&ucontext->iwdev->ibdev,
 195                   "VERBS: bar_offset [0x%llx] mmap_flag [%d]\n",
 196                   entry->bar_offset, entry->mmap_flag);
 197
 198         pfn = (entry->bar_offset +
 199               pci_resource_start(ucontext->iwdev->rf->pcidev, 0)) >> PAGE_SHIFT;
 200
 201         switch (entry->mmap_flag) {
 202         case IRDMA_MMAP_IO_NC:
 203                 ret = rdma_user_mmap_io(context, vma, pfn, PAGE_SIZE,
 204                                         pgprot_noncached(vma->vm_page_prot),
 205                                         rdma_entry);
 206                 break;
 207         case IRDMA_MMAP_IO_WC:
 208                 ret = rdma_user_mmap_io(context, vma, pfn, PAGE_SIZE,
 209                                         pgprot_writecombine(vma->vm_page_prot),
 210                                         rdma_entry);
 211                 break;
 212         default:
 213                 ret = -EINVAL;
 214         }
 215
 216         if (ret)
 217                 ibdev_dbg(&ucontext->iwdev->ibdev,
 218                           "VERBS: bar_offset [0x%llx] mmap_flag[%d] err[%d]\n",
 219                           entry->bar_offset, entry->mmap_flag, ret);
 220         rdma_user_mmap_entry_put(rdma_entry);
 221
 222         return ret;
 223 }
 224
 225 /**
 226  * irdma_alloc_push_page - allocate a push page for qp
 227  * @iwqp: qp pointer
 228  */
 229 static void irdma_alloc_push_page(struct irdma_qp *iwqp)
 230 {
 231         struct irdma_cqp_request *cqp_request;
 232         struct cqp_cmds_info *cqp_info;
 233         struct irdma_device *iwdev = iwqp->iwdev;
 234         struct irdma_sc_qp *qp = &iwqp->sc_qp;
 235         int status;
 236
 237         cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true);
 238         if (!cqp_request)
 239                 return;
 240
 241         cqp_info = &cqp_request->info;
 242         cqp_info->cqp_cmd = IRDMA_OP_MANAGE_PUSH_PAGE;
 243         cqp_info->post_sq = 1;
 244         cqp_info->in.u.manage_push_page.info.push_idx = 0;
 245         cqp_info->in.u.manage_push_page.info.qs_handle =
 246                 qp->vsi->qos[qp->user_pri].qs_handle;
 247         cqp_info->in.u.manage_push_page.info.free_page = 0;
 248         cqp_info->in.u.manage_push_page.info.push_page_type = 0;
 249         cqp_info->in.u.manage_push_page.cqp = &iwdev->rf->cqp.sc_cqp;
 250         cqp_info->in.u.manage_push_page.scratch = (uintptr_t)cqp_request;
 251
 252         status = irdma_handle_cqp_op(iwdev->rf, cqp_request);
 253         if (!status && cqp_request->compl_info.op_ret_val <
 254             iwdev->rf->sc_dev.hw_attrs.max_hw_device_pages) {
 255                 qp->push_idx = cqp_request->compl_info.op_ret_val;
 256                 qp->push_offset = 0;
 257         }
 258
 259         irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request);
 260 }
 261
 262 /**
 263  * irdma_alloc_ucontext - Allocate the user context data structure
 264  * @uctx: uverbs context pointer
 265  * @udata: user data
 266  *
 267  * This keeps track of all objects associated with a particular
 268  * user-mode client.
 269  */
 270 static int irdma_alloc_ucontext(struct ib_ucontext *uctx,
 271                                 struct ib_udata *udata)
 272 {
 273 #define IRDMA_ALLOC_UCTX_MIN_REQ_LEN offsetofend(struct irdma_alloc_ucontext_req, rsvd8)
 274 #define IRDMA_ALLOC_UCTX_MIN_RESP_LEN offsetofend(struct irdma_alloc_ucontext_resp, rsvd)
 275         struct ib_device *ibdev = uctx->device;
 276         struct irdma_device *iwdev = to_iwdev(ibdev);
 277         struct irdma_alloc_ucontext_req req = {};
 278         struct irdma_alloc_ucontext_resp uresp = {};
 279         struct irdma_ucontext *ucontext = to_ucontext(uctx);
 280         struct irdma_uk_attrs *uk_attrs;
 281
 282         if (udata->inlen < IRDMA_ALLOC_UCTX_MIN_REQ_LEN ||
 283             udata->outlen < IRDMA_ALLOC_UCTX_MIN_RESP_LEN)
 284                 return -EINVAL;
 285
 286         if (ib_copy_from_udata(&req, udata, min(sizeof(req), udata->inlen)))
 287                 return -EINVAL;
 288
 289         if (req.userspace_ver < 4 || req.userspace_ver > IRDMA_ABI_VER)
 290                 goto ver_error;
 291
 292         ucontext->iwdev = iwdev;
 293         ucontext->abi_ver = req.userspace_ver;
 294
 295         uk_attrs = &iwdev->rf->sc_dev.hw_attrs.uk_attrs;
 296         /* GEN_1 legacy support with libi40iw */
 297         if (udata->outlen == IRDMA_ALLOC_UCTX_MIN_RESP_LEN) {
 298                 if (uk_attrs->hw_rev != IRDMA_GEN_1)
 299                         return -EOPNOTSUPP;
 300
 301                 ucontext->legacy_mode = true;
 302                 uresp.max_qps = iwdev->rf->max_qp;
 303                 uresp.max_pds = iwdev->rf->sc_dev.hw_attrs.max_hw_pds;
 304                 uresp.wq_size = iwdev->rf->sc_dev.hw_attrs.max_qp_wr * 2;
 305                 uresp.kernel_ver = req.userspace_ver;
 306                 if (ib_copy_to_udata(udata, &uresp,
 307                                      min(sizeof(uresp), udata->outlen)))
 308                         return -EFAULT;
 309         } else {
 310                 u64 bar_off = (uintptr_t)iwdev->rf->sc_dev.hw_regs[IRDMA_DB_ADDR_OFFSET];
 311
 312                 ucontext->db_mmap_entry =
 313                         irdma_user_mmap_entry_insert(ucontext, bar_off,
 314                                                      IRDMA_MMAP_IO_NC,
 315                                                      &uresp.db_mmap_key);
 316                 if (!ucontext->db_mmap_entry)
 317                         return -ENOMEM;
 318
 319                 uresp.kernel_ver = IRDMA_ABI_VER;
 320                 uresp.feature_flags = uk_attrs->feature_flags;
 321                 uresp.max_hw_wq_frags = uk_attrs->max_hw_wq_frags;
 322                 uresp.max_hw_read_sges = uk_attrs->max_hw_read_sges;
 323                 uresp.max_hw_inline = uk_attrs->max_hw_inline;
 324                 uresp.max_hw_rq_quanta = uk_attrs->max_hw_rq_quanta;
 325                 uresp.max_hw_wq_quanta = uk_attrs->max_hw_wq_quanta;
 326                 uresp.max_hw_sq_chunk = uk_attrs->max_hw_sq_chunk;
 327                 uresp.max_hw_cq_size = uk_attrs->max_hw_cq_size;
 328                 uresp.min_hw_cq_size = uk_attrs->min_hw_cq_size;
 329                 uresp.hw_rev = uk_attrs->hw_rev;
 330                 if (ib_copy_to_udata(udata, &uresp,
 331                                      min(sizeof(uresp), udata->outlen))) {
 332                         rdma_user_mmap_entry_remove(ucontext->db_mmap_entry);
 333                         return -EFAULT;
 334                 }
 335         }
 336
 337         INIT_LIST_HEAD(&ucontext->cq_reg_mem_list);
 338         spin_lock_init(&ucontext->cq_reg_mem_list_lock);
 339         INIT_LIST_HEAD(&ucontext->qp_reg_mem_list);
 340         spin_lock_init(&ucontext->qp_reg_mem_list_lock);
 341
 342         return 0;
 343
 344 ver_error:
 345         ibdev_err(&iwdev->ibdev,
 346                   "Invalid userspace driver version detected. Detected version %d, should be %d\n",
 347                   req.userspace_ver, IRDMA_ABI_VER);
 348         return -EINVAL;
 349 }
 350
 351 /**
 352  * irdma_dealloc_ucontext - deallocate the user context data structure
 353  * @context: user context created during alloc
 354  */
 355 static void irdma_dealloc_ucontext(struct ib_ucontext *context)
 356 {
 357         struct irdma_ucontext *ucontext = to_ucontext(context);
 358
 359         rdma_user_mmap_entry_remove(ucontext->db_mmap_entry);
 360 }
 361
 362 /**
 363  * irdma_alloc_pd - allocate protection domain
 364  * @pd: PD pointer
 365  * @udata: user data
 366  */
 367 static int irdma_alloc_pd(struct ib_pd *pd, struct ib_udata *udata)
 368 {
 369 #define IRDMA_ALLOC_PD_MIN_RESP_LEN offsetofend(struct irdma_alloc_pd_resp, rsvd)
 370         struct irdma_pd *iwpd = to_iwpd(pd);
 371         struct irdma_device *iwdev = to_iwdev(pd->device);
 372         struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;
 373         struct irdma_pci_f *rf = iwdev->rf;
 374         struct irdma_alloc_pd_resp uresp = {};
 375         struct irdma_sc_pd *sc_pd;
 376         u32 pd_id = 0;
 377         int err;
 378
 379         if (udata && udata->outlen < IRDMA_ALLOC_PD_MIN_RESP_LEN)
 380                 return -EINVAL;
 381
 382         err = irdma_alloc_rsrc(rf, rf->allocated_pds, rf->max_pd, &pd_id,
 383                                &rf->next_pd);
 384         if (err)
 385                 return err;
 386
 387         sc_pd = &iwpd->sc_pd;
 388         if (udata) {
 389                 struct irdma_ucontext *ucontext =
 390                         rdma_udata_to_drv_context(udata, struct irdma_ucontext,
 391                                                   ibucontext);
 392                 irdma_sc_pd_init(dev, sc_pd, pd_id, ucontext->abi_ver);
 393                 uresp.pd_id = pd_id;
 394                 if (ib_copy_to_udata(udata, &uresp,
 395                                      min(sizeof(uresp), udata->outlen))) {
 396                         err = -EFAULT;
 397                         goto error;
 398                 }
 399         } else {
 400                 irdma_sc_pd_init(dev, sc_pd, pd_id, IRDMA_ABI_VER);
 401         }
 402
 403         return 0;
 404 error:
 405         irdma_free_rsrc(rf, rf->allocated_pds, pd_id);
 406
 407         return err;
 408 }
 409
 410 /**
 411  * irdma_dealloc_pd - deallocate pd
 412  * @ibpd: ptr of pd to be deallocated
 413  * @udata: user data
 414  */
 415 static int irdma_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
 416 {
 417         struct irdma_pd *iwpd = to_iwpd(ibpd);
 418         struct irdma_device *iwdev = to_iwdev(ibpd->device);
 419
 420         irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_pds, iwpd->sc_pd.pd_id);
 421
 422         return 0;
 423 }
 424
 425 /**
 426  * irdma_get_pbl - Retrieve pbl from a list given a virtual
 427  * address
 428  * @va: user virtual address
 429  * @pbl_list: pbl list to search in (QP's or CQ's)
 430  */
 431 static struct irdma_pbl *irdma_get_pbl(unsigned long va,
 432                                        struct list_head *pbl_list)
 433 {
 434         struct irdma_pbl *iwpbl;
 435
 436         list_for_each_entry (iwpbl, pbl_list, list) {
 437                 if (iwpbl->user_base == va) {
 438                         list_del(&iwpbl->list);
 439                         iwpbl->on_list = false;
 440                         return iwpbl;
 441                 }
 442         }
 443
 444         return NULL;
 445 }
 446
 447 /**
 448  * irdma_clean_cqes - clean cq entries for qp
 449  * @iwqp: qp ptr (user or kernel)
 450  * @iwcq: cq ptr
 451  */
 452 static void irdma_clean_cqes(struct irdma_qp *iwqp, struct irdma_cq *iwcq)
 453 {
 454         struct irdma_cq_uk *ukcq = &iwcq->sc_cq.cq_uk;
 455         unsigned long flags;
 456
 457         spin_lock_irqsave(&iwcq->lock, flags);
 458         irdma_uk_clean_cq(&iwqp->sc_qp.qp_uk, ukcq);
 459         spin_unlock_irqrestore(&iwcq->lock, flags);
 460 }
 461
 462 static void irdma_remove_push_mmap_entries(struct irdma_qp *iwqp)
 463 {
 464         if (iwqp->push_db_mmap_entry) {
 465                 rdma_user_mmap_entry_remove(iwqp->push_db_mmap_entry);
 466                 iwqp->push_db_mmap_entry = NULL;
 467         }
 468         if (iwqp->push_wqe_mmap_entry) {
 469                 rdma_user_mmap_entry_remove(iwqp->push_wqe_mmap_entry);
 470                 iwqp->push_wqe_mmap_entry = NULL;
 471         }
 472 }
 473
 474 static int irdma_setup_push_mmap_entries(struct irdma_ucontext *ucontext,
 475                                          struct irdma_qp *iwqp,
 476                                          u64 *push_wqe_mmap_key,
 477                                          u64 *push_db_mmap_key)
 478 {
 479         struct irdma_device *iwdev = ucontext->iwdev;
 480         u64 rsvd, bar_off;
 481
 482         rsvd = IRDMA_PF_BAR_RSVD;
 483         bar_off = (uintptr_t)iwdev->rf->sc_dev.hw_regs[IRDMA_DB_ADDR_OFFSET];
 484         /* skip over db page */
 485         bar_off += IRDMA_HW_PAGE_SIZE;
 486         /* push wqe page */
 487         bar_off += rsvd + iwqp->sc_qp.push_idx * IRDMA_HW_PAGE_SIZE;
 488         iwqp->push_wqe_mmap_entry = irdma_user_mmap_entry_insert(ucontext,
 489                                         bar_off, IRDMA_MMAP_IO_WC,
 490                                         push_wqe_mmap_key);
 491         if (!iwqp->push_wqe_mmap_entry)
 492                 return -ENOMEM;
 493
 494         /* push doorbell page */
 495         bar_off += IRDMA_HW_PAGE_SIZE;
 496         iwqp->push_db_mmap_entry = irdma_user_mmap_entry_insert(ucontext,
 497                                         bar_off, IRDMA_MMAP_IO_NC,
 498                                         push_db_mmap_key);
 499         if (!iwqp->push_db_mmap_entry) {
 500                 rdma_user_mmap_entry_remove(iwqp->push_wqe_mmap_entry);
 501                 return -ENOMEM;
 502         }
 503
 504         return 0;
 505 }
 506
 507 /**
 508  * irdma_destroy_qp - destroy qp
 509  * @ibqp: qp's ib pointer also to get to device's qp address
 510  * @udata: user data
 511  */
 512 static int irdma_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata)
 513 {
 514         struct irdma_qp *iwqp = to_iwqp(ibqp);
 515         struct irdma_device *iwdev = iwqp->iwdev;
 516
 517         iwqp->sc_qp.qp_uk.destroy_pending = true;
 518
 519         if (iwqp->iwarp_state == IRDMA_QP_STATE_RTS)
 520                 irdma_modify_qp_to_err(&iwqp->sc_qp);
 521
 522         if (!iwqp->user_mode)
 523                 cancel_delayed_work_sync(&iwqp->dwork_flush);
 524
 525         if (!iwqp->user_mode) {
 526                 if (iwqp->iwscq) {
 527                         irdma_clean_cqes(iwqp, iwqp->iwscq);
 528                         if (iwqp->iwrcq != iwqp->iwscq)
 529                                 irdma_clean_cqes(iwqp, iwqp->iwrcq);
 530                 }
 531         }
 532
 533         irdma_qp_rem_ref(&iwqp->ibqp);
 534         wait_for_completion(&iwqp->free_qp);
 535         irdma_free_lsmm_rsrc(iwqp);
 536         irdma_cqp_qp_destroy_cmd(&iwdev->rf->sc_dev, &iwqp->sc_qp);
 537
 538         irdma_remove_push_mmap_entries(iwqp);
 539         irdma_free_qp_rsrc(iwqp);
 540
 541         return 0;
 542 }
 543
 544 /**
 545  * irdma_setup_virt_qp - setup for allocation of virtual qp
 546  * @iwdev: irdma device
 547  * @iwqp: qp ptr
 548  * @init_info: initialize info to return
 549  */
 550 static void irdma_setup_virt_qp(struct irdma_device *iwdev,
 551                                struct irdma_qp *iwqp,
 552                                struct irdma_qp_init_info *init_info)
 553 {
 554         struct irdma_pbl *iwpbl = iwqp->iwpbl;
 555         struct irdma_qp_mr *qpmr = &iwpbl->qp_mr;
 556
 557         iwqp->page = qpmr->sq_page;
 558         init_info->shadow_area_pa = qpmr->shadow;
 559         if (iwpbl->pbl_allocated) {
 560                 init_info->virtual_map = true;
 561                 init_info->sq_pa = qpmr->sq_pbl.idx;
 562                 init_info->rq_pa = qpmr->rq_pbl.idx;
 563         } else {
 564                 init_info->sq_pa = qpmr->sq_pbl.addr;
 565                 init_info->rq_pa = qpmr->rq_pbl.addr;
 566         }
 567 }
 568
 569 /**
 570  * irdma_setup_kmode_qp - setup initialization for kernel mode qp
 571  * @iwdev: iwarp device
 572  * @iwqp: qp ptr (user or kernel)
 573  * @info: initialize info to return
 574  * @init_attr: Initial QP create attributes
 575  */
 576 static int irdma_setup_kmode_qp(struct irdma_device *iwdev,
 577                                 struct irdma_qp *iwqp,
 578                                 struct irdma_qp_init_info *info,
 579                                 struct ib_qp_init_attr *init_attr)
 580 {
 581         struct irdma_dma_mem *mem = &iwqp->kqp.dma_mem;
 582         u32 sqdepth, rqdepth;
 583         u8 sqshift, rqshift;
 584         u32 size;
 585         int status;
 586         struct irdma_qp_uk_init_info *ukinfo = &info->qp_uk_init_info;
 587         struct irdma_uk_attrs *uk_attrs = &iwdev->rf->sc_dev.hw_attrs.uk_attrs;
 588
 589         irdma_get_wqe_shift(uk_attrs,
 590                 uk_attrs->hw_rev >= IRDMA_GEN_2 ? ukinfo->max_sq_frag_cnt + 1 :
 591                                                   ukinfo->max_sq_frag_cnt,
 592                 ukinfo->max_inline_data, &sqshift);
 593         status = irdma_get_sqdepth(uk_attrs, ukinfo->sq_size, sqshift,
 594                                    &sqdepth);
 595         if (status)
 596                 return status;
 597
 598         if (uk_attrs->hw_rev == IRDMA_GEN_1)
 599                 rqshift = IRDMA_MAX_RQ_WQE_SHIFT_GEN1;
 600         else
 601                 irdma_get_wqe_shift(uk_attrs, ukinfo->max_rq_frag_cnt, 0,
 602                                     &rqshift);
 603
 604         status = irdma_get_rqdepth(uk_attrs, ukinfo->rq_size, rqshift,
 605                                    &rqdepth);
 606         if (status)
 607                 return status;
 608
 609         iwqp->kqp.sq_wrid_mem =
 610                 kcalloc(sqdepth, sizeof(*iwqp->kqp.sq_wrid_mem), GFP_KERNEL);
 611         if (!iwqp->kqp.sq_wrid_mem)
 612                 return -ENOMEM;
 613
 614         iwqp->kqp.rq_wrid_mem =
 615                 kcalloc(rqdepth, sizeof(*iwqp->kqp.rq_wrid_mem), GFP_KERNEL);
 616         if (!iwqp->kqp.rq_wrid_mem) {
 617                 kfree(iwqp->kqp.sq_wrid_mem);
 618                 iwqp->kqp.sq_wrid_mem = NULL;
 619                 return -ENOMEM;
 620         }
 621
 622         ukinfo->sq_wrtrk_array = iwqp->kqp.sq_wrid_mem;
 623         ukinfo->rq_wrid_array = iwqp->kqp.rq_wrid_mem;
 624
 625         size = (sqdepth + rqdepth) * IRDMA_QP_WQE_MIN_SIZE;
 626         size += (IRDMA_SHADOW_AREA_SIZE << 3);
 627
 628         mem->size = ALIGN(size, 256);
 629         mem->va = dma_alloc_coherent(iwdev->rf->hw.device, mem->size,
 630                                      &mem->pa, GFP_KERNEL);
 631         if (!mem->va) {
 632                 kfree(iwqp->kqp.sq_wrid_mem);
 633                 iwqp->kqp.sq_wrid_mem = NULL;
 634                 kfree(iwqp->kqp.rq_wrid_mem);
 635                 iwqp->kqp.rq_wrid_mem = NULL;
 636                 return -ENOMEM;
 637         }
 638
 639         ukinfo->sq = mem->va;
 640         info->sq_pa = mem->pa;
 641         ukinfo->rq = &ukinfo->sq[sqdepth];
 642         info->rq_pa = info->sq_pa + (sqdepth * IRDMA_QP_WQE_MIN_SIZE);
 643         ukinfo->shadow_area = ukinfo->rq[rqdepth].elem;
 644         info->shadow_area_pa = info->rq_pa + (rqdepth * IRDMA_QP_WQE_MIN_SIZE);
 645         ukinfo->sq_size = sqdepth >> sqshift;
 646         ukinfo->rq_size = rqdepth >> rqshift;
 647         ukinfo->qp_id = iwqp->ibqp.qp_num;
 648
 649         init_attr->cap.max_send_wr = (sqdepth - IRDMA_SQ_RSVD) >> sqshift;
 650         init_attr->cap.max_recv_wr = (rqdepth - IRDMA_RQ_RSVD) >> rqshift;
 651
 652         return 0;
 653 }
 654
 655 static int irdma_cqp_create_qp_cmd(struct irdma_qp *iwqp)
 656 {
 657         struct irdma_pci_f *rf = iwqp->iwdev->rf;
 658         struct irdma_cqp_request *cqp_request;
 659         struct cqp_cmds_info *cqp_info;
 660         struct irdma_create_qp_info *qp_info;
 661         int status;
 662
 663         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
 664         if (!cqp_request)
 665                 return -ENOMEM;
 666
 667         cqp_info = &cqp_request->info;
 668         qp_info = &cqp_request->info.in.u.qp_create.info;
 669         memset(qp_info, 0, sizeof(*qp_info));
 670         qp_info->mac_valid = true;
 671         qp_info->cq_num_valid = true;
 672         qp_info->next_iwarp_state = IRDMA_QP_STATE_IDLE;
 673
 674         cqp_info->cqp_cmd = IRDMA_OP_QP_CREATE;
 675         cqp_info->post_sq = 1;
 676         cqp_info->in.u.qp_create.qp = &iwqp->sc_qp;
 677         cqp_info->in.u.qp_create.scratch = (uintptr_t)cqp_request;
 678         status = irdma_handle_cqp_op(rf, cqp_request);
 679         irdma_put_cqp_request(&rf->cqp, cqp_request);
 680
 681         return status;
 682 }
 683
 684 static void irdma_roce_fill_and_set_qpctx_info(struct irdma_qp *iwqp,
 685                                                struct irdma_qp_host_ctx_info *ctx_info)
 686 {
 687         struct irdma_device *iwdev = iwqp->iwdev;
 688         struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;
 689         struct irdma_roce_offload_info *roce_info;
 690         struct irdma_udp_offload_info *udp_info;
 691
 692         udp_info = &iwqp->udp_info;
 693         udp_info->snd_mss = ib_mtu_enum_to_int(ib_mtu_int_to_enum(iwdev->vsi.mtu));
 694         udp_info->cwnd = iwdev->roce_cwnd;
 695         udp_info->rexmit_thresh = 2;
 696         udp_info->rnr_nak_thresh = 2;
 697         udp_info->src_port = 0xc000;
 698         udp_info->dst_port = ROCE_V2_UDP_DPORT;
 699         roce_info = &iwqp->roce_info;
 700         ether_addr_copy(roce_info->mac_addr, iwdev->netdev->dev_addr);
 701
 702         roce_info->rd_en = true;
 703         roce_info->wr_rdresp_en = true;
 704         roce_info->bind_en = true;
 705         roce_info->dcqcn_en = false;
 706         roce_info->rtomin = 5;
 707
 708         roce_info->ack_credits = iwdev->roce_ackcreds;
 709         roce_info->ird_size = dev->hw_attrs.max_hw_ird;
 710         roce_info->ord_size = dev->hw_attrs.max_hw_ord;
 711
 712         if (!iwqp->user_mode) {
 713                 roce_info->priv_mode_en = true;
 714                 roce_info->fast_reg_en = true;
 715                 roce_info->udprivcq_en = true;
 716         }
 717         roce_info->roce_tver = 0;
 718
 719         ctx_info->roce_info = &iwqp->roce_info;
 720         ctx_info->udp_info = &iwqp->udp_info;
 721         irdma_sc_qp_setctx_roce(&iwqp->sc_qp, iwqp->host_ctx.va, ctx_info);
 722 }
 723
 724 static void irdma_iw_fill_and_set_qpctx_info(struct irdma_qp *iwqp,
 725                                              struct irdma_qp_host_ctx_info *ctx_info)
 726 {
 727         struct irdma_device *iwdev = iwqp->iwdev;
 728         struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;
 729         struct irdma_iwarp_offload_info *iwarp_info;
 730
 731         iwarp_info = &iwqp->iwarp_info;
 732         ether_addr_copy(iwarp_info->mac_addr, iwdev->netdev->dev_addr);
 733         iwarp_info->rd_en = true;
 734         iwarp_info->wr_rdresp_en = true;
 735         iwarp_info->bind_en = true;
 736         iwarp_info->ecn_en = true;
 737         iwarp_info->rtomin = 5;
 738
 739         if (dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2)
 740                 iwarp_info->ib_rd_en = true;
 741         if (!iwqp->user_mode) {
 742                 iwarp_info->priv_mode_en = true;
 743                 iwarp_info->fast_reg_en = true;
 744         }
 745         iwarp_info->ddp_ver = 1;
 746         iwarp_info->rdmap_ver = 1;
 747
 748         ctx_info->iwarp_info = &iwqp->iwarp_info;
 749         ctx_info->iwarp_info_valid = true;
 750         irdma_sc_qp_setctx(&iwqp->sc_qp, iwqp->host_ctx.va, ctx_info);
 751         ctx_info->iwarp_info_valid = false;
 752 }
 753
 754 static int irdma_validate_qp_attrs(struct ib_qp_init_attr *init_attr,
 755                                    struct irdma_device *iwdev)
 756 {
 757         struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;
 758         struct irdma_uk_attrs *uk_attrs = &dev->hw_attrs.uk_attrs;
 759
 760         if (init_attr->create_flags)
 761                 return -EOPNOTSUPP;
 762
 763         if (init_attr->cap.max_inline_data > uk_attrs->max_hw_inline ||
 764             init_attr->cap.max_send_sge > uk_attrs->max_hw_wq_frags ||
 765             init_attr->cap.max_recv_sge > uk_attrs->max_hw_wq_frags)
 766                 return -EINVAL;
 767
 768         if (rdma_protocol_roce(&iwdev->ibdev, 1)) {
 769                 if (init_attr->qp_type != IB_QPT_RC &&
 770                     init_attr->qp_type != IB_QPT_UD &&
 771                     init_attr->qp_type != IB_QPT_GSI)
 772                         return -EOPNOTSUPP;
 773         } else {
 774                 if (init_attr->qp_type != IB_QPT_RC)
 775                         return -EOPNOTSUPP;
 776         }
 777
 778         return 0;
 779 }
 780
 781 static void irdma_flush_worker(struct work_struct *work)
 782 {
 783         struct delayed_work *dwork = to_delayed_work(work);
 784         struct irdma_qp *iwqp = container_of(dwork, struct irdma_qp, dwork_flush);
 785
 786         irdma_generate_flush_completions(iwqp);
 787 }
 788
 789 /**
 790  * irdma_create_qp - create qp
 791  * @ibqp: ptr of qp
 792  * @init_attr: attributes for qp
 793  * @udata: user data for create qp
 794  */
 795 static int irdma_create_qp(struct ib_qp *ibqp,
 796                            struct ib_qp_init_attr *init_attr,
 797                            struct ib_udata *udata)
 798 {
 799 #define IRDMA_CREATE_QP_MIN_REQ_LEN offsetofend(struct irdma_create_qp_req, user_compl_ctx)
 800 #define IRDMA_CREATE_QP_MIN_RESP_LEN offsetofend(struct irdma_create_qp_resp, rsvd)
 801         struct ib_pd *ibpd = ibqp->pd;
 802         struct irdma_pd *iwpd = to_iwpd(ibpd);
 803         struct irdma_device *iwdev = to_iwdev(ibpd->device);
 804         struct irdma_pci_f *rf = iwdev->rf;
 805         struct irdma_qp *iwqp = to_iwqp(ibqp);
 806         struct irdma_create_qp_req req = {};
 807         struct irdma_create_qp_resp uresp = {};
 808         u32 qp_num = 0;
 809         int err_code;
 810         int sq_size;
 811         int rq_size;
 812         struct irdma_sc_qp *qp;
 813         struct irdma_sc_dev *dev = &rf->sc_dev;
 814         struct irdma_uk_attrs *uk_attrs = &dev->hw_attrs.uk_attrs;
 815         struct irdma_qp_init_info init_info = {};
 816         struct irdma_qp_host_ctx_info *ctx_info;
 817         unsigned long flags;
 818
 819         err_code = irdma_validate_qp_attrs(init_attr, iwdev);
 820         if (err_code)
 821                 return err_code;
 822
 823         if (udata && (udata->inlen < IRDMA_CREATE_QP_MIN_REQ_LEN ||
 824                       udata->outlen < IRDMA_CREATE_QP_MIN_RESP_LEN))
 825                 return -EINVAL;
 826
 827         sq_size = init_attr->cap.max_send_wr;
 828         rq_size = init_attr->cap.max_recv_wr;
 829
 830         init_info.vsi = &iwdev->vsi;
 831         init_info.qp_uk_init_info.uk_attrs = uk_attrs;
 832         init_info.qp_uk_init_info.sq_size = sq_size;
 833         init_info.qp_uk_init_info.rq_size = rq_size;
 834         init_info.qp_uk_init_info.max_sq_frag_cnt = init_attr->cap.max_send_sge;
 835         init_info.qp_uk_init_info.max_rq_frag_cnt = init_attr->cap.max_recv_sge;
 836         init_info.qp_uk_init_info.max_inline_data = init_attr->cap.max_inline_data;
 837
 838         qp = &iwqp->sc_qp;
 839         qp->qp_uk.back_qp = iwqp;
 840         qp->push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX;
 841
 842         iwqp->iwdev = iwdev;
 843         iwqp->q2_ctx_mem.size = ALIGN(IRDMA_Q2_BUF_SIZE + IRDMA_QP_CTX_SIZE,
 844                                       256);
 845         iwqp->q2_ctx_mem.va = dma_alloc_coherent(dev->hw->device,
 846                                                  iwqp->q2_ctx_mem.size,
 847                                                  &iwqp->q2_ctx_mem.pa,
 848                                                  GFP_KERNEL);
 849         if (!iwqp->q2_ctx_mem.va)
 850                 return -ENOMEM;
 851
 852         init_info.q2 = iwqp->q2_ctx_mem.va;
 853         init_info.q2_pa = iwqp->q2_ctx_mem.pa;
 854         init_info.host_ctx = (__le64 *)(init_info.q2 + IRDMA_Q2_BUF_SIZE);
 855         init_info.host_ctx_pa = init_info.q2_pa + IRDMA_Q2_BUF_SIZE;
 856
 857         if (init_attr->qp_type == IB_QPT_GSI)
 858                 qp_num = 1;
 859         else
 860                 err_code = irdma_alloc_rsrc(rf, rf->allocated_qps, rf->max_qp,
 861                                             &qp_num, &rf->next_qp);
 862         if (err_code)
 863                 goto error;
 864
 865         iwqp->iwpd = iwpd;
 866         iwqp->ibqp.qp_num = qp_num;
 867         qp = &iwqp->sc_qp;
 868         iwqp->iwscq = to_iwcq(init_attr->send_cq);
 869         iwqp->iwrcq = to_iwcq(init_attr->recv_cq);
 870         iwqp->host_ctx.va = init_info.host_ctx;
 871         iwqp->host_ctx.pa = init_info.host_ctx_pa;
 872         iwqp->host_ctx.size = IRDMA_QP_CTX_SIZE;
 873
 874         init_info.pd = &iwpd->sc_pd;
 875         init_info.qp_uk_init_info.qp_id = iwqp->ibqp.qp_num;
 876         if (!rdma_protocol_roce(&iwdev->ibdev, 1))
 877                 init_info.qp_uk_init_info.first_sq_wq = 1;
 878         iwqp->ctx_info.qp_compl_ctx = (uintptr_t)qp;
 879         init_waitqueue_head(&iwqp->waitq);
 880         init_waitqueue_head(&iwqp->mod_qp_waitq);
 881
 882         if (udata) {
 883                 err_code = ib_copy_from_udata(&req, udata,
 884                                               min(sizeof(req), udata->inlen));
 885                 if (err_code) {
 886                         ibdev_dbg(&iwdev->ibdev,
 887                                   "VERBS: ib_copy_from_data fail\n");
 888                         goto error;
 889                 }
 890
 891                 iwqp->ctx_info.qp_compl_ctx = req.user_compl_ctx;
 892                 iwqp->user_mode = 1;
 893                 if (req.user_wqe_bufs) {
 894                         struct irdma_ucontext *ucontext =
 895                                 rdma_udata_to_drv_context(udata,
 896                                                           struct irdma_ucontext,
 897                                                           ibucontext);
 898
 899                         init_info.qp_uk_init_info.legacy_mode = ucontext->legacy_mode;
 900                         spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags);
 901                         iwqp->iwpbl = irdma_get_pbl((unsigned long)req.user_wqe_bufs,
 902                                                     &ucontext->qp_reg_mem_list);
 903                         spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags);
 904
 905                         if (!iwqp->iwpbl) {
 906                                 err_code = -ENODATA;
 907                                 ibdev_dbg(&iwdev->ibdev, "VERBS: no pbl info\n");
 908                                 goto error;
 909                         }
 910                 }
 911                 init_info.qp_uk_init_info.abi_ver = iwpd->sc_pd.abi_ver;
 912                 irdma_setup_virt_qp(iwdev, iwqp, &init_info);
 913         } else {
 914                 INIT_DELAYED_WORK(&iwqp->dwork_flush, irdma_flush_worker);
 915                 init_info.qp_uk_init_info.abi_ver = IRDMA_ABI_VER;
 916                 err_code = irdma_setup_kmode_qp(iwdev, iwqp, &init_info, init_attr);
 917         }
 918
 919         if (err_code) {
 920                 ibdev_dbg(&iwdev->ibdev, "VERBS: setup qp failed\n");
 921                 goto error;
 922         }
 923
 924         if (rdma_protocol_roce(&iwdev->ibdev, 1)) {
 925                 if (init_attr->qp_type == IB_QPT_RC) {
 926                         init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_ROCE_RC;
 927                         init_info.qp_uk_init_info.qp_caps = IRDMA_SEND_WITH_IMM |
 928                                                             IRDMA_WRITE_WITH_IMM |
 929                                                             IRDMA_ROCE;
 930                 } else {
 931                         init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_ROCE_UD;
 932                         init_info.qp_uk_init_info.qp_caps = IRDMA_SEND_WITH_IMM |
 933                                                             IRDMA_ROCE;
 934                 }
 935         } else {
 936                 init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_IWARP;
 937                 init_info.qp_uk_init_info.qp_caps = IRDMA_WRITE_WITH_IMM;
 938         }
 939
 940         if (dev->hw_attrs.uk_attrs.hw_rev > IRDMA_GEN_1)
 941                 init_info.qp_uk_init_info.qp_caps |= IRDMA_PUSH_MODE;
 942
 943         err_code = irdma_sc_qp_init(qp, &init_info);
 944         if (err_code) {
 945                 ibdev_dbg(&iwdev->ibdev, "VERBS: qp_init fail\n");
 946                 goto error;
 947         }
 948
 949         ctx_info = &iwqp->ctx_info;
 950         ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id;
 951         ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id;
 952
 953         if (rdma_protocol_roce(&iwdev->ibdev, 1))
 954                 irdma_roce_fill_and_set_qpctx_info(iwqp, ctx_info);
 955         else
 956                 irdma_iw_fill_and_set_qpctx_info(iwqp, ctx_info);
 957
 958         err_code = irdma_cqp_create_qp_cmd(iwqp);
 959         if (err_code)
 960                 goto error;
 961
 962         refcount_set(&iwqp->refcnt, 1);
 963         spin_lock_init(&iwqp->lock);
 964         spin_lock_init(&iwqp->sc_qp.pfpdu.lock);
 965         iwqp->sig_all = (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) ? 1 : 0;
 966         rf->qp_table[qp_num] = iwqp;
 967         iwqp->max_send_wr = sq_size;
 968         iwqp->max_recv_wr = rq_size;
 969
 970         if (rdma_protocol_roce(&iwdev->ibdev, 1)) {
 971                 if (dev->ws_add(&iwdev->vsi, 0)) {
 972                         irdma_cqp_qp_destroy_cmd(&rf->sc_dev, &iwqp->sc_qp);
 973                         err_code = -EINVAL;
 974                         goto error;
 975                 }
 976
 977                 irdma_qp_add_qos(&iwqp->sc_qp);
 978         }
 979
 980         if (udata) {
 981                 /* GEN_1 legacy support with libi40iw does not have expanded uresp struct */
 982                 if (udata->outlen < sizeof(uresp)) {
 983                         uresp.lsmm = 1;
 984                         uresp.push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX_GEN_1;
 985                 } else {
 986                         if (rdma_protocol_iwarp(&iwdev->ibdev, 1))
 987                                 uresp.lsmm = 1;
 988                 }
 989                 uresp.actual_sq_size = sq_size;
 990                 uresp.actual_rq_size = rq_size;
 991                 uresp.qp_id = qp_num;
 992                 uresp.qp_caps = qp->qp_uk.qp_caps;
 993
 994                 err_code = ib_copy_to_udata(udata, &uresp,
 995                                             min(sizeof(uresp), udata->outlen));
 996                 if (err_code) {
 997                         ibdev_dbg(&iwdev->ibdev, "VERBS: copy_to_udata failed\n");
 998                         irdma_destroy_qp(&iwqp->ibqp, udata);
 999                         return err_code;
1000                 }
1001         }
1002
1003         init_completion(&iwqp->free_qp);
1004         return 0;
1005
1006 error:
1007         irdma_free_qp_rsrc(iwqp);
1008         return err_code;
1009 }
1010
1011 static int irdma_get_ib_acc_flags(struct irdma_qp *iwqp)
1012 {
1013         int acc_flags = 0;
1014
1015         if (rdma_protocol_roce(iwqp->ibqp.device, 1)) {
1016                 if (iwqp->roce_info.wr_rdresp_en) {
1017                         acc_flags |= IB_ACCESS_LOCAL_WRITE;
1018                         acc_flags |= IB_ACCESS_REMOTE_WRITE;
1019                 }
1020                 if (iwqp->roce_info.rd_en)
1021                         acc_flags |= IB_ACCESS_REMOTE_READ;
1022                 if (iwqp->roce_info.bind_en)
1023                         acc_flags |= IB_ACCESS_MW_BIND;
1024         } else {
1025                 if (iwqp->iwarp_info.wr_rdresp_en) {
1026                         acc_flags |= IB_ACCESS_LOCAL_WRITE;
1027                         acc_flags |= IB_ACCESS_REMOTE_WRITE;
1028                 }
1029                 if (iwqp->iwarp_info.rd_en)
1030                         acc_flags |= IB_ACCESS_REMOTE_READ;
1031                 if (iwqp->iwarp_info.bind_en)
1032                         acc_flags |= IB_ACCESS_MW_BIND;
1033         }
1034         return acc_flags;
1035 }
1036
1037 /**
1038  * irdma_query_qp - query qp attributes
1039  * @ibqp: qp pointer
1040  * @attr: attributes pointer
1041  * @attr_mask: Not used
1042  * @init_attr: qp attributes to return
1043  */
1044 static int irdma_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
1045                           int attr_mask, struct ib_qp_init_attr *init_attr)
1046 {
1047         struct irdma_qp *iwqp = to_iwqp(ibqp);
1048         struct irdma_sc_qp *qp = &iwqp->sc_qp;
1049
1050         memset(attr, 0, sizeof(*attr));
1051         memset(init_attr, 0, sizeof(*init_attr));
1052
1053         attr->qp_state = iwqp->ibqp_state;
1054         attr->cur_qp_state = iwqp->ibqp_state;
1055         attr->cap.max_send_wr = iwqp->max_send_wr;
1056         attr->cap.max_recv_wr = iwqp->max_recv_wr;
1057         attr->cap.max_inline_data = qp->qp_uk.max_inline_data;
1058         attr->cap.max_send_sge = qp->qp_uk.max_sq_frag_cnt;
1059         attr->cap.max_recv_sge = qp->qp_uk.max_rq_frag_cnt;
1060         attr->qp_access_flags = irdma_get_ib_acc_flags(iwqp);
1061         attr->port_num = 1;
1062         if (rdma_protocol_roce(ibqp->device, 1)) {
1063                 attr->path_mtu = ib_mtu_int_to_enum(iwqp->udp_info.snd_mss);
1064                 attr->qkey = iwqp->roce_info.qkey;
1065                 attr->rq_psn = iwqp->udp_info.epsn;
1066                 attr->sq_psn = iwqp->udp_info.psn_nxt;
1067                 attr->dest_qp_num = iwqp->roce_info.dest_qp;
1068                 attr->pkey_index = iwqp->roce_info.p_key;
1069                 attr->retry_cnt = iwqp->udp_info.rexmit_thresh;
1070                 attr->rnr_retry = iwqp->udp_info.rnr_nak_thresh;
1071                 attr->max_rd_atomic = iwqp->roce_info.ord_size;
1072                 attr->max_dest_rd_atomic = iwqp->roce_info.ird_size;
1073         }
1074
1075         init_attr->event_handler = iwqp->ibqp.event_handler;
1076         init_attr->qp_context = iwqp->ibqp.qp_context;
1077         init_attr->send_cq = iwqp->ibqp.send_cq;
1078         init_attr->recv_cq = iwqp->ibqp.recv_cq;
1079         init_attr->cap = attr->cap;
1080
1081         return 0;
1082 }
1083
1084 /**
1085  * irdma_query_pkey - Query partition key
1086  * @ibdev: device pointer from stack
1087  * @port: port number
1088  * @index: index of pkey
1089  * @pkey: pointer to store the pkey
1090  */
1091 static int irdma_query_pkey(struct ib_device *ibdev, u32 port, u16 index,
1092                             u16 *pkey)
1093 {
1094         if (index >= IRDMA_PKEY_TBL_SZ)
1095                 return -EINVAL;
1096
1097         *pkey = IRDMA_DEFAULT_PKEY;
1098         return 0;
1099 }
1100
1101 /**
1102  * irdma_modify_qp_roce - modify qp request
1103  * @ibqp: qp's pointer for modify
1104  * @attr: access attributes
1105  * @attr_mask: state mask
1106  * @udata: user data
1107  */
1108 int irdma_modify_qp_roce(struct ib_qp *ibqp, struct ib_qp_attr *attr,
1109                          int attr_mask, struct ib_udata *udata)
1110 {
1111 #define IRDMA_MODIFY_QP_MIN_REQ_LEN offsetofend(struct irdma_modify_qp_req, rq_flush)
1112 #define IRDMA_MODIFY_QP_MIN_RESP_LEN offsetofend(struct irdma_modify_qp_resp, push_valid)
1113         struct irdma_pd *iwpd = to_iwpd(ibqp->pd);
1114         struct irdma_qp *iwqp = to_iwqp(ibqp);
1115         struct irdma_device *iwdev = iwqp->iwdev;
1116         struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;
1117         struct irdma_qp_host_ctx_info *ctx_info;
1118         struct irdma_roce_offload_info *roce_info;
1119         struct irdma_udp_offload_info *udp_info;
1120         struct irdma_modify_qp_info info = {};
1121         struct irdma_modify_qp_resp uresp = {};
1122         struct irdma_modify_qp_req ureq = {};
1123         unsigned long flags;
1124         u8 issue_modify_qp = 0;
1125         int ret = 0;
1126
1127         ctx_info = &iwqp->ctx_info;
1128         roce_info = &iwqp->roce_info;
1129         udp_info = &iwqp->udp_info;
1130
1131         if (udata) {
1132                 /* udata inlen/outlen can be 0 when supporting legacy libi40iw */
1133                 if ((udata->inlen && udata->inlen < IRDMA_MODIFY_QP_MIN_REQ_LEN) ||
1134                     (udata->outlen && udata->outlen < IRDMA_MODIFY_QP_MIN_RESP_LEN))
1135                         return -EINVAL;
1136         }
1137
1138         if (attr_mask & ~IB_QP_ATTR_STANDARD_BITS)
1139                 return -EOPNOTSUPP;
1140
1141         if (attr_mask & IB_QP_DEST_QPN)
1142                 roce_info->dest_qp = attr->dest_qp_num;
1143
1144         if (attr_mask & IB_QP_PKEY_INDEX) {
1145                 ret = irdma_query_pkey(ibqp->device, 0, attr->pkey_index,
1146                                        &roce_info->p_key);
1147                 if (ret)
1148                         return ret;
1149         }
1150
1151         if (attr_mask & IB_QP_QKEY)
1152                 roce_info->qkey = attr->qkey;
1153
1154         if (attr_mask & IB_QP_PATH_MTU)
1155                 udp_info->snd_mss = ib_mtu_enum_to_int(attr->path_mtu);
1156
1157         if (attr_mask & IB_QP_SQ_PSN) {
1158                 udp_info->psn_nxt = attr->sq_psn;
1159                 udp_info->lsn =  0xffff;
1160                 udp_info->psn_una = attr->sq_psn;
1161                 udp_info->psn_max = attr->sq_psn;
1162         }
1163
1164         if (attr_mask & IB_QP_RQ_PSN)
1165                 udp_info->epsn = attr->rq_psn;
1166
1167         if (attr_mask & IB_QP_RNR_RETRY)
1168                 udp_info->rnr_nak_thresh = attr->rnr_retry;
1169
1170         if (attr_mask & IB_QP_RETRY_CNT)
1171                 udp_info->rexmit_thresh = attr->retry_cnt;
1172
1173         ctx_info->roce_info->pd_id = iwpd->sc_pd.pd_id;
1174
1175         if (attr_mask & IB_QP_AV) {
1176                 struct irdma_av *av = &iwqp->roce_ah.av;
1177                 const struct ib_gid_attr *sgid_attr;
1178                 u16 vlan_id = VLAN_N_VID;
1179                 u32 local_ip[4];
1180
1181                 memset(&iwqp->roce_ah, 0, sizeof(iwqp->roce_ah));
1182                 if (attr->ah_attr.ah_flags & IB_AH_GRH) {
1183                         udp_info->ttl = attr->ah_attr.grh.hop_limit;
1184                         udp_info->flow_label = attr->ah_attr.grh.flow_label;
1185                         udp_info->tos = attr->ah_attr.grh.traffic_class;
1186                         udp_info->src_port =
1187                                 rdma_get_udp_sport(udp_info->flow_label,
1188                                                    ibqp->qp_num,
1189                                                    roce_info->dest_qp);
1190                         irdma_qp_rem_qos(&iwqp->sc_qp);
1191                         dev->ws_remove(iwqp->sc_qp.vsi, ctx_info->user_pri);
1192                         ctx_info->user_pri = rt_tos2priority(udp_info->tos);
1193                         iwqp->sc_qp.user_pri = ctx_info->user_pri;
1194                         if (dev->ws_add(iwqp->sc_qp.vsi, ctx_info->user_pri))
1195                                 return -ENOMEM;
1196                         irdma_qp_add_qos(&iwqp->sc_qp);
1197                 }
1198                 sgid_attr = attr->ah_attr.grh.sgid_attr;
1199                 ret = rdma_read_gid_l2_fields(sgid_attr, &vlan_id,
1200                                               ctx_info->roce_info->mac_addr);
1201                 if (ret)
1202                         return ret;
1203
1204                 if (vlan_id >= VLAN_N_VID && iwdev->dcb_vlan_mode)
1205                         vlan_id = 0;
1206                 if (vlan_id < VLAN_N_VID) {
1207                         udp_info->insert_vlan_tag = true;
1208                         udp_info->vlan_tag = vlan_id |
1209                                 ctx_info->user_pri << VLAN_PRIO_SHIFT;
1210                 } else {
1211                         udp_info->insert_vlan_tag = false;
1212                 }
1213
1214                 av->attrs = attr->ah_attr;
1215                 rdma_gid2ip((struct sockaddr *)&av->sgid_addr, &sgid_attr->gid);
1216                 rdma_gid2ip((struct sockaddr *)&av->dgid_addr, &attr->ah_attr.grh.dgid);
1217                 av->net_type = rdma_gid_attr_network_type(sgid_attr);
1218                 if (av->net_type == RDMA_NETWORK_IPV6) {
1219                         __be32 *daddr =
1220                                 av->dgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32;
1221                         __be32 *saddr =
1222                                 av->sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32;
1223
1224                         irdma_copy_ip_ntohl(&udp_info->dest_ip_addr[0], daddr);
1225                         irdma_copy_ip_ntohl(&udp_info->local_ipaddr[0], saddr);
1226
1227                         udp_info->ipv4 = false;
1228                         irdma_copy_ip_ntohl(local_ip, daddr);
1229
1230                 } else if (av->net_type == RDMA_NETWORK_IPV4) {
1231                         __be32 saddr = av->sgid_addr.saddr_in.sin_addr.s_addr;
1232                         __be32 daddr = av->dgid_addr.saddr_in.sin_addr.s_addr;
1233
1234                         local_ip[0] = ntohl(daddr);
1235
1236                         udp_info->ipv4 = true;
1237                         udp_info->dest_ip_addr[0] = 0;
1238                         udp_info->dest_ip_addr[1] = 0;
1239                         udp_info->dest_ip_addr[2] = 0;
1240                         udp_info->dest_ip_addr[3] = local_ip[0];
1241
1242                         udp_info->local_ipaddr[0] = 0;
1243                         udp_info->local_ipaddr[1] = 0;
1244                         udp_info->local_ipaddr[2] = 0;
1245                         udp_info->local_ipaddr[3] = ntohl(saddr);
1246                 }
1247                 udp_info->arp_idx =
1248                         irdma_add_arp(iwdev->rf, local_ip, udp_info->ipv4,
1249                                       attr->ah_attr.roce.dmac);
1250         }
1251
1252         if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) {
1253                 if (attr->max_rd_atomic > dev->hw_attrs.max_hw_ord) {
1254                         ibdev_err(&iwdev->ibdev,
1255                                   "rd_atomic = %d, above max_hw_ord=%d\n",
1256                                   attr->max_rd_atomic,
1257                                   dev->hw_attrs.max_hw_ord);
1258                         return -EINVAL;
1259                 }
1260                 if (attr->max_rd_atomic)
1261                         roce_info->ord_size = attr->max_rd_atomic;
1262                 info.ord_valid = true;
1263         }
1264
1265         if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) {
1266                 if (attr->max_dest_rd_atomic > dev->hw_attrs.max_hw_ird) {
1267                         ibdev_err(&iwdev->ibdev,
1268                                   "rd_atomic = %d, above max_hw_ird=%d\n",
1269                                    attr->max_rd_atomic,
1270                                    dev->hw_attrs.max_hw_ird);
1271                         return -EINVAL;
1272                 }
1273                 if (attr->max_dest_rd_atomic)
1274                         roce_info->ird_size = attr->max_dest_rd_atomic;
1275         }
1276
1277         if (attr_mask & IB_QP_ACCESS_FLAGS) {
1278                 if (attr->qp_access_flags & IB_ACCESS_LOCAL_WRITE)
1279                         roce_info->wr_rdresp_en = true;
1280                 if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE)
1281                         roce_info->wr_rdresp_en = true;
1282                 if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ)
1283                         roce_info->rd_en = true;
1284         }
1285
1286         wait_event(iwqp->mod_qp_waitq, !atomic_read(&iwqp->hw_mod_qp_pend));
1287
1288         ibdev_dbg(&iwdev->ibdev,
1289                   "VERBS: caller: %pS qp_id=%d to_ibqpstate=%d ibqpstate=%d irdma_qpstate=%d attr_mask=0x%x\n",
1290                   __builtin_return_address(0), ibqp->qp_num, attr->qp_state,
1291                   iwqp->ibqp_state, iwqp->iwarp_state, attr_mask);
1292
1293         spin_lock_irqsave(&iwqp->lock, flags);
1294         if (attr_mask & IB_QP_STATE) {
1295                 if (!ib_modify_qp_is_ok(iwqp->ibqp_state, attr->qp_state,
1296                                         iwqp->ibqp.qp_type, attr_mask)) {
1297                         ibdev_warn(&iwdev->ibdev, "modify_qp invalid for qp_id=%d, old_state=0x%x, new_state=0x%x\n",
1298                                    iwqp->ibqp.qp_num, iwqp->ibqp_state,
1299                                    attr->qp_state);
1300                         ret = -EINVAL;
1301                         goto exit;
1302                 }
1303                 info.curr_iwarp_state = iwqp->iwarp_state;
1304
1305                 switch (attr->qp_state) {
1306                 case IB_QPS_INIT:
1307                         if (iwqp->iwarp_state > IRDMA_QP_STATE_IDLE) {
1308                                 ret = -EINVAL;
1309                                 goto exit;
1310                         }
1311
1312                         if (iwqp->iwarp_state == IRDMA_QP_STATE_INVALID) {
1313                                 info.next_iwarp_state = IRDMA_QP_STATE_IDLE;
1314                                 issue_modify_qp = 1;
1315                         }
1316                         break;
1317                 case IB_QPS_RTR:
1318                         if (iwqp->iwarp_state > IRDMA_QP_STATE_IDLE) {
1319                                 ret = -EINVAL;
1320                                 goto exit;
1321                         }
1322                         info.arp_cache_idx_valid = true;
1323                         info.cq_num_valid = true;
1324                         info.next_iwarp_state = IRDMA_QP_STATE_RTR;
1325                         issue_modify_qp = 1;
1326                         break;
1327                 case IB_QPS_RTS:
1328                         if (iwqp->ibqp_state < IB_QPS_RTR ||
1329                             iwqp->ibqp_state == IB_QPS_ERR) {
1330                                 ret = -EINVAL;
1331                                 goto exit;
1332                         }
1333
1334                         info.arp_cache_idx_valid = true;
1335                         info.cq_num_valid = true;
1336                         info.ord_valid = true;
1337                         info.next_iwarp_state = IRDMA_QP_STATE_RTS;
1338                         issue_modify_qp = 1;
1339                         if (iwdev->push_mode && udata &&
1340                             iwqp->sc_qp.push_idx == IRDMA_INVALID_PUSH_PAGE_INDEX &&
1341                             dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) {
1342                                 spin_unlock_irqrestore(&iwqp->lock, flags);
1343                                 irdma_alloc_push_page(iwqp);
1344                                 spin_lock_irqsave(&iwqp->lock, flags);
1345                         }
1346                         break;
1347                 case IB_QPS_SQD:
1348                         if (iwqp->iwarp_state == IRDMA_QP_STATE_SQD)
1349                                 goto exit;
1350
1351                         if (iwqp->iwarp_state != IRDMA_QP_STATE_RTS) {
1352                                 ret = -EINVAL;
1353                                 goto exit;
1354                         }
1355
1356                         info.next_iwarp_state = IRDMA_QP_STATE_SQD;
1357                         issue_modify_qp = 1;
1358                         break;
1359                 case IB_QPS_SQE:
1360                 case IB_QPS_ERR:
1361                 case IB_QPS_RESET:
1362                         if (iwqp->iwarp_state == IRDMA_QP_STATE_RTS) {
1363                                 spin_unlock_irqrestore(&iwqp->lock, flags);
1364                                 info.next_iwarp_state = IRDMA_QP_STATE_SQD;
1365                                 irdma_hw_modify_qp(iwdev, iwqp, &info, true);
1366                                 spin_lock_irqsave(&iwqp->lock, flags);
1367                         }
1368
1369                         if (iwqp->iwarp_state == IRDMA_QP_STATE_ERROR) {
1370                                 spin_unlock_irqrestore(&iwqp->lock, flags);
1371                                 if (udata && udata->inlen) {
1372                                         if (ib_copy_from_udata(&ureq, udata,
1373                                             min(sizeof(ureq), udata->inlen)))
1374                                                 return -EINVAL;
1375
1376                                         irdma_flush_wqes(iwqp,
1377                                             (ureq.sq_flush ? IRDMA_FLUSH_SQ : 0) |
1378                                             (ureq.rq_flush ? IRDMA_FLUSH_RQ : 0) |
1379                                             IRDMA_REFLUSH);
1380                                 }
1381                                 return 0;
1382                         }
1383
1384                         info.next_iwarp_state = IRDMA_QP_STATE_ERROR;
1385                         issue_modify_qp = 1;
1386                         break;
1387                 default:
1388                         ret = -EINVAL;
1389                         goto exit;
1390                 }
1391
1392                 iwqp->ibqp_state = attr->qp_state;
1393         }
1394
1395         ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id;
1396         ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id;
1397         irdma_sc_qp_setctx_roce(&iwqp->sc_qp, iwqp->host_ctx.va, ctx_info);
1398         spin_unlock_irqrestore(&iwqp->lock, flags);
1399
1400         if (attr_mask & IB_QP_STATE) {
1401                 if (issue_modify_qp) {
1402                         ctx_info->rem_endpoint_idx = udp_info->arp_idx;
1403                         if (irdma_hw_modify_qp(iwdev, iwqp, &info, true))
1404                                 return -EINVAL;
1405                         spin_lock_irqsave(&iwqp->lock, flags);
1406                         if (iwqp->iwarp_state == info.curr_iwarp_state) {
1407                                 iwqp->iwarp_state = info.next_iwarp_state;
1408                                 iwqp->ibqp_state = attr->qp_state;
1409                         }
1410                         if (iwqp->ibqp_state > IB_QPS_RTS &&
1411                             !iwqp->flush_issued) {
1412                                 spin_unlock_irqrestore(&iwqp->lock, flags);
1413                                 irdma_flush_wqes(iwqp, IRDMA_FLUSH_SQ |
1414                                                        IRDMA_FLUSH_RQ |
1415                                                        IRDMA_FLUSH_WAIT);
1416                                 iwqp->flush_issued = 1;
1417                         } else {
1418                                 spin_unlock_irqrestore(&iwqp->lock, flags);
1419                         }
1420                 } else {
1421                         iwqp->ibqp_state = attr->qp_state;
1422                 }
1423                 if (udata && udata->outlen && dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) {
1424                         struct irdma_ucontext *ucontext;
1425
1426                         ucontext = rdma_udata_to_drv_context(udata,
1427                                         struct irdma_ucontext, ibucontext);
1428                         if (iwqp->sc_qp.push_idx != IRDMA_INVALID_PUSH_PAGE_INDEX &&
1429                             !iwqp->push_wqe_mmap_entry &&
1430                             !irdma_setup_push_mmap_entries(ucontext, iwqp,
1431                                 &uresp.push_wqe_mmap_key, &uresp.push_db_mmap_key)) {
1432                                 uresp.push_valid = 1;
1433                                 uresp.push_offset = iwqp->sc_qp.push_offset;
1434                         }
1435                         ret = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp),
1436                                                udata->outlen));
1437                         if (ret) {
1438                                 irdma_remove_push_mmap_entries(iwqp);
1439                                 ibdev_dbg(&iwdev->ibdev,
1440                                           "VERBS: copy_to_udata failed\n");
1441                                 return ret;
1442                         }
1443                 }
1444         }
1445
1446         return 0;
1447 exit:
1448         spin_unlock_irqrestore(&iwqp->lock, flags);
1449
1450         return ret;
1451 }
1452
1453 /**
1454  * irdma_modify_qp - modify qp request
1455  * @ibqp: qp's pointer for modify
1456  * @attr: access attributes
1457  * @attr_mask: state mask
1458  * @udata: user data
1459  */
1460 int irdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
1461                     struct ib_udata *udata)
1462 {
1463 #define IRDMA_MODIFY_QP_MIN_REQ_LEN offsetofend(struct irdma_modify_qp_req, rq_flush)
1464 #define IRDMA_MODIFY_QP_MIN_RESP_LEN offsetofend(struct irdma_modify_qp_resp, push_valid)
1465         struct irdma_qp *iwqp = to_iwqp(ibqp);
1466         struct irdma_device *iwdev = iwqp->iwdev;
1467         struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;
1468         struct irdma_qp_host_ctx_info *ctx_info;
1469         struct irdma_tcp_offload_info *tcp_info;
1470         struct irdma_iwarp_offload_info *offload_info;
1471         struct irdma_modify_qp_info info = {};
1472         struct irdma_modify_qp_resp uresp = {};
1473         struct irdma_modify_qp_req ureq = {};
1474         u8 issue_modify_qp = 0;
1475         u8 dont_wait = 0;
1476         int err;
1477         unsigned long flags;
1478
1479         if (udata) {
1480                 /* udata inlen/outlen can be 0 when supporting legacy libi40iw */
1481                 if ((udata->inlen && udata->inlen < IRDMA_MODIFY_QP_MIN_REQ_LEN) ||
1482                     (udata->outlen && udata->outlen < IRDMA_MODIFY_QP_MIN_RESP_LEN))
1483                         return -EINVAL;
1484         }
1485
1486         if (attr_mask & ~IB_QP_ATTR_STANDARD_BITS)
1487                 return -EOPNOTSUPP;
1488
1489         ctx_info = &iwqp->ctx_info;
1490         offload_info = &iwqp->iwarp_info;
1491         tcp_info = &iwqp->tcp_info;
1492         wait_event(iwqp->mod_qp_waitq, !atomic_read(&iwqp->hw_mod_qp_pend));
1493         ibdev_dbg(&iwdev->ibdev,
1494                   "VERBS: caller: %pS qp_id=%d to_ibqpstate=%d ibqpstate=%d irdma_qpstate=%d last_aeq=%d hw_tcp_state=%d hw_iwarp_state=%d attr_mask=0x%x\n",
1495                   __builtin_return_address(0), ibqp->qp_num, attr->qp_state,
1496                   iwqp->ibqp_state, iwqp->iwarp_state, iwqp->last_aeq,
1497                   iwqp->hw_tcp_state, iwqp->hw_iwarp_state, attr_mask);
1498
1499         spin_lock_irqsave(&iwqp->lock, flags);
1500         if (attr_mask & IB_QP_STATE) {
1501                 info.curr_iwarp_state = iwqp->iwarp_state;
1502                 switch (attr->qp_state) {
1503                 case IB_QPS_INIT:
1504                 case IB_QPS_RTR:
1505                         if (iwqp->iwarp_state > IRDMA_QP_STATE_IDLE) {
1506                                 err = -EINVAL;
1507                                 goto exit;
1508                         }
1509
1510                         if (iwqp->iwarp_state == IRDMA_QP_STATE_INVALID) {
1511                                 info.next_iwarp_state = IRDMA_QP_STATE_IDLE;
1512                                 issue_modify_qp = 1;
1513                         }
1514                         if (iwdev->push_mode && udata &&
1515                             iwqp->sc_qp.push_idx == IRDMA_INVALID_PUSH_PAGE_INDEX &&
1516                             dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) {
1517                                 spin_unlock_irqrestore(&iwqp->lock, flags);
1518                                 irdma_alloc_push_page(iwqp);
1519                                 spin_lock_irqsave(&iwqp->lock, flags);
1520                         }
1521                         break;
1522                 case IB_QPS_RTS:
1523                         if (iwqp->iwarp_state > IRDMA_QP_STATE_RTS ||
1524                             !iwqp->cm_id) {
1525                                 err = -EINVAL;
1526                                 goto exit;
1527                         }
1528
1529                         issue_modify_qp = 1;
1530                         iwqp->hw_tcp_state = IRDMA_TCP_STATE_ESTABLISHED;
1531                         iwqp->hte_added = 1;
1532                         info.next_iwarp_state = IRDMA_QP_STATE_RTS;
1533                         info.tcp_ctx_valid = true;
1534                         info.ord_valid = true;
1535                         info.arp_cache_idx_valid = true;
1536                         info.cq_num_valid = true;
1537                         break;
1538                 case IB_QPS_SQD:
1539                         if (iwqp->hw_iwarp_state > IRDMA_QP_STATE_RTS) {
1540                                 err = 0;
1541                                 goto exit;
1542                         }
1543
1544                         if (iwqp->iwarp_state == IRDMA_QP_STATE_CLOSING ||
1545                             iwqp->iwarp_state < IRDMA_QP_STATE_RTS) {
1546                                 err = 0;
1547                                 goto exit;
1548                         }
1549
1550                         if (iwqp->iwarp_state > IRDMA_QP_STATE_CLOSING) {
1551                                 err = -EINVAL;
1552                                 goto exit;
1553                         }
1554
1555                         info.next_iwarp_state = IRDMA_QP_STATE_CLOSING;
1556                         issue_modify_qp = 1;
1557                         break;
1558                 case IB_QPS_SQE:
1559                         if (iwqp->iwarp_state >= IRDMA_QP_STATE_TERMINATE) {
1560                                 err = -EINVAL;
1561                                 goto exit;
1562                         }
1563
1564                         info.next_iwarp_state = IRDMA_QP_STATE_TERMINATE;
1565                         issue_modify_qp = 1;
1566                         break;
1567                 case IB_QPS_ERR:
1568                 case IB_QPS_RESET:
1569                         if (iwqp->iwarp_state == IRDMA_QP_STATE_ERROR) {
1570                                 spin_unlock_irqrestore(&iwqp->lock, flags);
1571                                 if (udata && udata->inlen) {
1572                                         if (ib_copy_from_udata(&ureq, udata,
1573                                             min(sizeof(ureq), udata->inlen)))
1574                                                 return -EINVAL;
1575
1576                                         irdma_flush_wqes(iwqp,
1577                                             (ureq.sq_flush ? IRDMA_FLUSH_SQ : 0) |
1578                                             (ureq.rq_flush ? IRDMA_FLUSH_RQ : 0) |
1579                                             IRDMA_REFLUSH);
1580                                 }
1581                                 return 0;
1582                         }
1583
1584                         if (iwqp->sc_qp.term_flags) {
1585                                 spin_unlock_irqrestore(&iwqp->lock, flags);
1586                                 irdma_terminate_del_timer(&iwqp->sc_qp);
1587                                 spin_lock_irqsave(&iwqp->lock, flags);
1588                         }
1589                         info.next_iwarp_state = IRDMA_QP_STATE_ERROR;
1590                         if (iwqp->hw_tcp_state > IRDMA_TCP_STATE_CLOSED &&
1591                             iwdev->iw_status &&
1592                             iwqp->hw_tcp_state != IRDMA_TCP_STATE_TIME_WAIT)
1593                                 info.reset_tcp_conn = true;
1594                         else
1595                                 dont_wait = 1;
1596
1597                         issue_modify_qp = 1;
1598                         info.next_iwarp_state = IRDMA_QP_STATE_ERROR;
1599                         break;
1600                 default:
1601                         err = -EINVAL;
1602                         goto exit;
1603                 }
1604
1605                 iwqp->ibqp_state = attr->qp_state;
1606         }
1607         if (attr_mask & IB_QP_ACCESS_FLAGS) {
1608                 ctx_info->iwarp_info_valid = true;
1609                 if (attr->qp_access_flags & IB_ACCESS_LOCAL_WRITE)
1610                         offload_info->wr_rdresp_en = true;
1611                 if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE)
1612                         offload_info->wr_rdresp_en = true;
1613                 if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ)
1614                         offload_info->rd_en = true;
1615         }
1616
1617         if (ctx_info->iwarp_info_valid) {
1618                 ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id;
1619                 ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id;
1620                 irdma_sc_qp_setctx(&iwqp->sc_qp, iwqp->host_ctx.va, ctx_info);
1621         }
1622         spin_unlock_irqrestore(&iwqp->lock, flags);
1623
1624         if (attr_mask & IB_QP_STATE) {
1625                 if (issue_modify_qp) {
1626                         ctx_info->rem_endpoint_idx = tcp_info->arp_idx;
1627                         if (irdma_hw_modify_qp(iwdev, iwqp, &info, true))
1628                                 return -EINVAL;
1629                 }
1630
1631                 spin_lock_irqsave(&iwqp->lock, flags);
1632                 if (iwqp->iwarp_state == info.curr_iwarp_state) {
1633                         iwqp->iwarp_state = info.next_iwarp_state;
1634                         iwqp->ibqp_state = attr->qp_state;
1635                 }
1636                 spin_unlock_irqrestore(&iwqp->lock, flags);
1637         }
1638
1639         if (issue_modify_qp && iwqp->ibqp_state > IB_QPS_RTS) {
1640                 if (dont_wait) {
1641                         if (iwqp->hw_tcp_state) {
1642                                 spin_lock_irqsave(&iwqp->lock, flags);
1643                                 iwqp->hw_tcp_state = IRDMA_TCP_STATE_CLOSED;
1644                                 iwqp->last_aeq = IRDMA_AE_RESET_SENT;
1645                                 spin_unlock_irqrestore(&iwqp->lock, flags);
1646                         }
1647                         irdma_cm_disconn(iwqp);
1648                 } else {
1649                         int close_timer_started;
1650
1651                         spin_lock_irqsave(&iwdev->cm_core.ht_lock, flags);
1652
1653                         if (iwqp->cm_node) {
1654                                 refcount_inc(&iwqp->cm_node->refcnt);
1655                                 spin_unlock_irqrestore(&iwdev->cm_core.ht_lock, flags);
1656                                 close_timer_started = atomic_inc_return(&iwqp->close_timer_started);
1657                                 if (iwqp->cm_id && close_timer_started == 1)
1658                                         irdma_schedule_cm_timer(iwqp->cm_node,
1659                                                 (struct irdma_puda_buf *)iwqp,
1660                                                 IRDMA_TIMER_TYPE_CLOSE, 1, 0);
1661
1662                                 irdma_rem_ref_cm_node(iwqp->cm_node);
1663                         } else {
1664                                 spin_unlock_irqrestore(&iwdev->cm_core.ht_lock, flags);
1665                         }
1666                 }
1667         }
1668         if (attr_mask & IB_QP_STATE && udata && udata->outlen &&
1669             dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) {
1670                 struct irdma_ucontext *ucontext;
1671
1672                 ucontext = rdma_udata_to_drv_context(udata,
1673                                         struct irdma_ucontext, ibucontext);
1674                 if (iwqp->sc_qp.push_idx != IRDMA_INVALID_PUSH_PAGE_INDEX &&
1675                     !iwqp->push_wqe_mmap_entry &&
1676                     !irdma_setup_push_mmap_entries(ucontext, iwqp,
1677                         &uresp.push_wqe_mmap_key, &uresp.push_db_mmap_key)) {
1678                         uresp.push_valid = 1;
1679                         uresp.push_offset = iwqp->sc_qp.push_offset;
1680                 }
1681
1682                 err = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp),
1683                                        udata->outlen));
1684                 if (err) {
1685                         irdma_remove_push_mmap_entries(iwqp);
1686                         ibdev_dbg(&iwdev->ibdev,
1687                                   "VERBS: copy_to_udata failed\n");
1688                         return err;
1689                 }
1690         }
1691
1692         return 0;
1693 exit:
1694         spin_unlock_irqrestore(&iwqp->lock, flags);
1695
1696         return err;
1697 }
1698
1699 /**
1700  * irdma_cq_free_rsrc - free up resources for cq
1701  * @rf: RDMA PCI function
1702  * @iwcq: cq ptr
1703  */
1704 static void irdma_cq_free_rsrc(struct irdma_pci_f *rf, struct irdma_cq *iwcq)
1705 {
1706         struct irdma_sc_cq *cq = &iwcq->sc_cq;
1707
1708         if (!iwcq->user_mode) {
1709                 dma_free_coherent(rf->sc_dev.hw->device, iwcq->kmem.size,
1710                                   iwcq->kmem.va, iwcq->kmem.pa);
1711                 iwcq->kmem.va = NULL;
1712                 dma_free_coherent(rf->sc_dev.hw->device,
1713                                   iwcq->kmem_shadow.size,
1714                                   iwcq->kmem_shadow.va, iwcq->kmem_shadow.pa);
1715                 iwcq->kmem_shadow.va = NULL;
1716         }
1717
1718         irdma_free_rsrc(rf, rf->allocated_cqs, cq->cq_uk.cq_id);
1719 }
1720
1721 /**
1722  * irdma_free_cqbuf - worker to free a cq buffer
1723  * @work: provides access to the cq buffer to free
1724  */
1725 static void irdma_free_cqbuf(struct work_struct *work)
1726 {
1727         struct irdma_cq_buf *cq_buf = container_of(work, struct irdma_cq_buf, work);
1728
1729         dma_free_coherent(cq_buf->hw->device, cq_buf->kmem_buf.size,
1730                           cq_buf->kmem_buf.va, cq_buf->kmem_buf.pa);
1731         cq_buf->kmem_buf.va = NULL;
1732         kfree(cq_buf);
1733 }
1734
1735 /**
1736  * irdma_process_resize_list - remove resized cq buffers from the resize_list
1737  * @iwcq: cq which owns the resize_list
1738  * @iwdev: irdma device
1739  * @lcqe_buf: the buffer where the last cqe is received
1740  */
1741 static int irdma_process_resize_list(struct irdma_cq *iwcq,
1742                                      struct irdma_device *iwdev,
1743                                      struct irdma_cq_buf *lcqe_buf)
1744 {
1745         struct list_head *tmp_node, *list_node;
1746         struct irdma_cq_buf *cq_buf;
1747         int cnt = 0;
1748
1749         list_for_each_safe(list_node, tmp_node, &iwcq->resize_list) {
1750                 cq_buf = list_entry(list_node, struct irdma_cq_buf, list);
1751                 if (cq_buf == lcqe_buf)
1752                         return cnt;
1753
1754                 list_del(&cq_buf->list);
1755                 queue_work(iwdev->cleanup_wq, &cq_buf->work);
1756                 cnt++;
1757         }
1758
1759         return cnt;
1760 }
1761
1762 /**
1763  * irdma_destroy_cq - destroy cq
1764  * @ib_cq: cq pointer
1765  * @udata: user data
1766  */
1767 static int irdma_destroy_cq(struct ib_cq *ib_cq, struct ib_udata *udata)
1768 {
1769         struct irdma_device *iwdev = to_iwdev(ib_cq->device);
1770         struct irdma_cq *iwcq = to_iwcq(ib_cq);
1771         struct irdma_sc_cq *cq = &iwcq->sc_cq;
1772         struct irdma_sc_dev *dev = cq->dev;
1773         struct irdma_sc_ceq *ceq = dev->ceq[cq->ceq_id];
1774         struct irdma_ceq *iwceq = container_of(ceq, struct irdma_ceq, sc_ceq);
1775         unsigned long flags;
1776
1777         spin_lock_irqsave(&iwcq->lock, flags);
1778         if (!list_empty(&iwcq->cmpl_generated))
1779                 irdma_remove_cmpls_list(iwcq);
1780         if (!list_empty(&iwcq->resize_list))
1781                 irdma_process_resize_list(iwcq, iwdev, NULL);
1782         spin_unlock_irqrestore(&iwcq->lock, flags);
1783
1784         irdma_cq_wq_destroy(iwdev->rf, cq);
1785
1786         spin_lock_irqsave(&iwceq->ce_lock, flags);
1787         irdma_sc_cleanup_ceqes(cq, ceq);
1788         spin_unlock_irqrestore(&iwceq->ce_lock, flags);
1789         irdma_cq_free_rsrc(iwdev->rf, iwcq);
1790
1791         return 0;
1792 }
1793
1794 /**
1795  * irdma_resize_cq - resize cq
1796  * @ibcq: cq to be resized
1797  * @entries: desired cq size
1798  * @udata: user data
1799  */
1800 static int irdma_resize_cq(struct ib_cq *ibcq, int entries,
1801                            struct ib_udata *udata)
1802 {
1803 #define IRDMA_RESIZE_CQ_MIN_REQ_LEN offsetofend(struct irdma_resize_cq_req, user_cq_buffer)
1804         struct irdma_cq *iwcq = to_iwcq(ibcq);
1805         struct irdma_sc_dev *dev = iwcq->sc_cq.dev;
1806         struct irdma_cqp_request *cqp_request;
1807         struct cqp_cmds_info *cqp_info;
1808         struct irdma_modify_cq_info *m_info;
1809         struct irdma_modify_cq_info info = {};
1810         struct irdma_dma_mem kmem_buf;
1811         struct irdma_cq_mr *cqmr_buf;
1812         struct irdma_pbl *iwpbl_buf;
1813         struct irdma_device *iwdev;
1814         struct irdma_pci_f *rf;
1815         struct irdma_cq_buf *cq_buf = NULL;
1816         unsigned long flags;
1817         int ret;
1818
1819         iwdev = to_iwdev(ibcq->device);
1820         rf = iwdev->rf;
1821
1822         if (!(rf->sc_dev.hw_attrs.uk_attrs.feature_flags &
1823             IRDMA_FEATURE_CQ_RESIZE))
1824                 return -EOPNOTSUPP;
1825
1826         if (udata && udata->inlen < IRDMA_RESIZE_CQ_MIN_REQ_LEN)
1827                 return -EINVAL;
1828
1829         if (entries > rf->max_cqe)
1830                 return -EINVAL;
1831
1832         if (!iwcq->user_mode) {
1833                 entries++;
1834                 if (rf->sc_dev.hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2)
1835                         entries *= 2;
1836         }
1837
1838         info.cq_size = max(entries, 4);
1839
1840         if (info.cq_size == iwcq->sc_cq.cq_uk.cq_size - 1)
1841                 return 0;
1842
1843         if (udata) {
1844                 struct irdma_resize_cq_req req = {};
1845                 struct irdma_ucontext *ucontext =
1846                         rdma_udata_to_drv_context(udata, struct irdma_ucontext,
1847                                                   ibucontext);
1848
1849                 /* CQ resize not supported with legacy GEN_1 libi40iw */
1850                 if (ucontext->legacy_mode)
1851                         return -EOPNOTSUPP;
1852
1853                 if (ib_copy_from_udata(&req, udata,
1854                                        min(sizeof(req), udata->inlen)))
1855                         return -EINVAL;
1856
1857                 spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
1858                 iwpbl_buf = irdma_get_pbl((unsigned long)req.user_cq_buffer,
1859                                           &ucontext->cq_reg_mem_list);
1860                 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
1861
1862                 if (!iwpbl_buf)
1863                         return -ENOMEM;
1864
1865                 cqmr_buf = &iwpbl_buf->cq_mr;
1866                 if (iwpbl_buf->pbl_allocated) {
1867                         info.virtual_map = true;
1868                         info.pbl_chunk_size = 1;
1869                         info.first_pm_pbl_idx = cqmr_buf->cq_pbl.idx;
1870                 } else {
1871                         info.cq_pa = cqmr_buf->cq_pbl.addr;
1872                 }
1873         } else {
1874                 /* Kmode CQ resize */
1875                 int rsize;
1876
1877                 rsize = info.cq_size * sizeof(struct irdma_cqe);
1878                 kmem_buf.size = ALIGN(round_up(rsize, 256), 256);
1879                 kmem_buf.va = dma_alloc_coherent(dev->hw->device,
1880                                                  kmem_buf.size, &kmem_buf.pa,
1881                                                  GFP_KERNEL);
1882                 if (!kmem_buf.va)
1883                         return -ENOMEM;
1884
1885                 info.cq_base = kmem_buf.va;
1886                 info.cq_pa = kmem_buf.pa;
1887                 cq_buf = kzalloc(sizeof(*cq_buf), GFP_KERNEL);
1888                 if (!cq_buf) {
1889                         ret = -ENOMEM;
1890                         goto error;
1891                 }
1892         }
1893
1894         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
1895         if (!cqp_request) {
1896                 ret = -ENOMEM;
1897                 goto error;
1898         }
1899
1900         info.shadow_read_threshold = iwcq->sc_cq.shadow_read_threshold;
1901         info.cq_resize = true;
1902
1903         cqp_info = &cqp_request->info;
1904         m_info = &cqp_info->in.u.cq_modify.info;
1905         memcpy(m_info, &info, sizeof(*m_info));
1906
1907         cqp_info->cqp_cmd = IRDMA_OP_CQ_MODIFY;
1908         cqp_info->in.u.cq_modify.cq = &iwcq->sc_cq;
1909         cqp_info->in.u.cq_modify.scratch = (uintptr_t)cqp_request;
1910         cqp_info->post_sq = 1;
1911         ret = irdma_handle_cqp_op(rf, cqp_request);
1912         irdma_put_cqp_request(&rf->cqp, cqp_request);
1913         if (ret)
1914                 goto error;
1915
1916         spin_lock_irqsave(&iwcq->lock, flags);
1917         if (cq_buf) {
1918                 cq_buf->kmem_buf = iwcq->kmem;
1919                 cq_buf->hw = dev->hw;
1920                 memcpy(&cq_buf->cq_uk, &iwcq->sc_cq.cq_uk, sizeof(cq_buf->cq_uk));
1921                 INIT_WORK(&cq_buf->work, irdma_free_cqbuf);
1922                 list_add_tail(&cq_buf->list, &iwcq->resize_list);
1923                 iwcq->kmem = kmem_buf;
1924         }
1925
1926         irdma_sc_cq_resize(&iwcq->sc_cq, &info);
1927         ibcq->cqe = info.cq_size - 1;
1928         spin_unlock_irqrestore(&iwcq->lock, flags);
1929
1930         return 0;
1931 error:
1932         if (!udata) {
1933                 dma_free_coherent(dev->hw->device, kmem_buf.size, kmem_buf.va,
1934                                   kmem_buf.pa);
1935                 kmem_buf.va = NULL;
1936         }
1937         kfree(cq_buf);
1938
1939         return ret;
1940 }
1941
1942 static inline int cq_validate_flags(u32 flags, u8 hw_rev)
1943 {
1944         /* GEN1 does not support CQ create flags */
1945         if (hw_rev == IRDMA_GEN_1)
1946                 return flags ? -EOPNOTSUPP : 0;
1947
1948         return flags & ~IB_UVERBS_CQ_FLAGS_TIMESTAMP_COMPLETION ? -EOPNOTSUPP : 0;
1949 }
1950
1951 /**
1952  * irdma_create_cq - create cq
1953  * @ibcq: CQ allocated
1954  * @attr: attributes for cq
1955  * @udata: user data
1956  */
1957 static int irdma_create_cq(struct ib_cq *ibcq,
1958                            const struct ib_cq_init_attr *attr,
1959                            struct ib_udata *udata)
1960 {
1961 #define IRDMA_CREATE_CQ_MIN_REQ_LEN offsetofend(struct irdma_create_cq_req, user_cq_buf)
1962 #define IRDMA_CREATE_CQ_MIN_RESP_LEN offsetofend(struct irdma_create_cq_resp, cq_size)
1963         struct ib_device *ibdev = ibcq->device;
1964         struct irdma_device *iwdev = to_iwdev(ibdev);
1965         struct irdma_pci_f *rf = iwdev->rf;
1966         struct irdma_cq *iwcq = to_iwcq(ibcq);
1967         u32 cq_num = 0;
1968         struct irdma_sc_cq *cq;
1969         struct irdma_sc_dev *dev = &rf->sc_dev;
1970         struct irdma_cq_init_info info = {};
1971         struct irdma_cqp_request *cqp_request;
1972         struct cqp_cmds_info *cqp_info;
1973         struct irdma_cq_uk_init_info *ukinfo = &info.cq_uk_init_info;
1974         unsigned long flags;
1975         int err_code;
1976         int entries = attr->cqe;
1977
1978         err_code = cq_validate_flags(attr->flags, dev->hw_attrs.uk_attrs.hw_rev);
1979         if (err_code)
1980                 return err_code;
1981
1982         if (udata && (udata->inlen < IRDMA_CREATE_CQ_MIN_REQ_LEN ||
1983                       udata->outlen < IRDMA_CREATE_CQ_MIN_RESP_LEN))
1984                 return -EINVAL;
1985
1986         err_code = irdma_alloc_rsrc(rf, rf->allocated_cqs, rf->max_cq, &cq_num,
1987                                     &rf->next_cq);
1988         if (err_code)
1989                 return err_code;
1990
1991         cq = &iwcq->sc_cq;
1992         cq->back_cq = iwcq;
1993         spin_lock_init(&iwcq->lock);
1994         INIT_LIST_HEAD(&iwcq->resize_list);
1995         INIT_LIST_HEAD(&iwcq->cmpl_generated);
1996         info.dev = dev;
1997         ukinfo->cq_size = max(entries, 4);
1998         ukinfo->cq_id = cq_num;
1999         iwcq->ibcq.cqe = info.cq_uk_init_info.cq_size;
2000         if (attr->comp_vector < rf->ceqs_count)
2001                 info.ceq_id = attr->comp_vector;
2002         info.ceq_id_valid = true;
2003         info.ceqe_mask = 1;
2004         info.type = IRDMA_CQ_TYPE_IWARP;
2005         info.vsi = &iwdev->vsi;
2006
2007         if (udata) {
2008                 struct irdma_ucontext *ucontext;
2009                 struct irdma_create_cq_req req = {};
2010                 struct irdma_cq_mr *cqmr;
2011                 struct irdma_pbl *iwpbl;
2012                 struct irdma_pbl *iwpbl_shadow;
2013                 struct irdma_cq_mr *cqmr_shadow;
2014
2015                 iwcq->user_mode = true;
2016                 ucontext =
2017                         rdma_udata_to_drv_context(udata, struct irdma_ucontext,
2018                                                   ibucontext);
2019                 if (ib_copy_from_udata(&req, udata,
2020                                        min(sizeof(req), udata->inlen))) {
2021                         err_code = -EFAULT;
2022                         goto cq_free_rsrc;
2023                 }
2024
2025                 spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
2026                 iwpbl = irdma_get_pbl((unsigned long)req.user_cq_buf,
2027                                       &ucontext->cq_reg_mem_list);
2028                 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
2029                 if (!iwpbl) {
2030                         err_code = -EPROTO;
2031                         goto cq_free_rsrc;
2032                 }
2033
2034                 iwcq->iwpbl = iwpbl;
2035                 iwcq->cq_mem_size = 0;
2036                 cqmr = &iwpbl->cq_mr;
2037
2038                 if (rf->sc_dev.hw_attrs.uk_attrs.feature_flags &
2039                     IRDMA_FEATURE_CQ_RESIZE && !ucontext->legacy_mode) {
2040                         spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
2041                         iwpbl_shadow = irdma_get_pbl(
2042                                         (unsigned long)req.user_shadow_area,
2043                                         &ucontext->cq_reg_mem_list);
2044                         spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
2045
2046                         if (!iwpbl_shadow) {
2047                                 err_code = -EPROTO;
2048                                 goto cq_free_rsrc;
2049                         }
2050                         iwcq->iwpbl_shadow = iwpbl_shadow;
2051                         cqmr_shadow = &iwpbl_shadow->cq_mr;
2052                         info.shadow_area_pa = cqmr_shadow->cq_pbl.addr;
2053                         cqmr->split = true;
2054                 } else {
2055                         info.shadow_area_pa = cqmr->shadow;
2056                 }
2057                 if (iwpbl->pbl_allocated) {
2058                         info.virtual_map = true;
2059                         info.pbl_chunk_size = 1;
2060                         info.first_pm_pbl_idx = cqmr->cq_pbl.idx;
2061                 } else {
2062                         info.cq_base_pa = cqmr->cq_pbl.addr;
2063                 }
2064         } else {
2065                 /* Kmode allocations */
2066                 int rsize;
2067
2068                 if (entries < 1 || entries > rf->max_cqe) {
2069                         err_code = -EINVAL;
2070                         goto cq_free_rsrc;
2071                 }
2072
2073                 entries++;
2074                 if (dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2)
2075                         entries *= 2;
2076                 ukinfo->cq_size = entries;
2077
2078                 rsize = info.cq_uk_init_info.cq_size * sizeof(struct irdma_cqe);
2079                 iwcq->kmem.size = ALIGN(round_up(rsize, 256), 256);
2080                 iwcq->kmem.va = dma_alloc_coherent(dev->hw->device,
2081                                                    iwcq->kmem.size,
2082                                                    &iwcq->kmem.pa, GFP_KERNEL);
2083                 if (!iwcq->kmem.va) {
2084                         err_code = -ENOMEM;
2085                         goto cq_free_rsrc;
2086                 }
2087
2088                 iwcq->kmem_shadow.size = ALIGN(IRDMA_SHADOW_AREA_SIZE << 3,
2089                                                64);
2090                 iwcq->kmem_shadow.va = dma_alloc_coherent(dev->hw->device,
2091                                                           iwcq->kmem_shadow.size,
2092                                                           &iwcq->kmem_shadow.pa,
2093                                                           GFP_KERNEL);
2094                 if (!iwcq->kmem_shadow.va) {
2095                         err_code = -ENOMEM;
2096                         goto cq_free_rsrc;
2097                 }
2098                 info.shadow_area_pa = iwcq->kmem_shadow.pa;
2099                 ukinfo->shadow_area = iwcq->kmem_shadow.va;
2100                 ukinfo->cq_base = iwcq->kmem.va;
2101                 info.cq_base_pa = iwcq->kmem.pa;
2102         }
2103
2104         if (dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2)
2105                 info.shadow_read_threshold = min(info.cq_uk_init_info.cq_size / 2,
2106                                                  (u32)IRDMA_MAX_CQ_READ_THRESH);
2107
2108         if (irdma_sc_cq_init(cq, &info)) {
2109                 ibdev_dbg(&iwdev->ibdev, "VERBS: init cq fail\n");
2110                 err_code = -EPROTO;
2111                 goto cq_free_rsrc;
2112         }
2113
2114         cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true);
2115         if (!cqp_request) {
2116                 err_code = -ENOMEM;
2117                 goto cq_free_rsrc;
2118         }
2119
2120         cqp_info = &cqp_request->info;
2121         cqp_info->cqp_cmd = IRDMA_OP_CQ_CREATE;
2122         cqp_info->post_sq = 1;
2123         cqp_info->in.u.cq_create.cq = cq;
2124         cqp_info->in.u.cq_create.check_overflow = true;
2125         cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request;
2126         err_code = irdma_handle_cqp_op(rf, cqp_request);
2127         irdma_put_cqp_request(&rf->cqp, cqp_request);
2128         if (err_code)
2129                 goto cq_free_rsrc;
2130
2131         if (udata) {
2132                 struct irdma_create_cq_resp resp = {};
2133
2134                 resp.cq_id = info.cq_uk_init_info.cq_id;
2135                 resp.cq_size = info.cq_uk_init_info.cq_size;
2136                 if (ib_copy_to_udata(udata, &resp,
2137                                      min(sizeof(resp), udata->outlen))) {
2138                         ibdev_dbg(&iwdev->ibdev,
2139                                   "VERBS: copy to user data\n");
2140                         err_code = -EPROTO;
2141                         goto cq_destroy;
2142                 }
2143         }
2144         return 0;
2145 cq_destroy:
2146         irdma_cq_wq_destroy(rf, cq);
2147 cq_free_rsrc:
2148         irdma_cq_free_rsrc(rf, iwcq);
2149
2150         return err_code;
2151 }
2152
2153 /**
2154  * irdma_get_mr_access - get hw MR access permissions from IB access flags
2155  * @access: IB access flags
2156  */
2157 static inline u16 irdma_get_mr_access(int access)
2158 {
2159         u16 hw_access = 0;
2160
2161         hw_access |= (access & IB_ACCESS_LOCAL_WRITE) ?
2162                      IRDMA_ACCESS_FLAGS_LOCALWRITE : 0;
2163         hw_access |= (access & IB_ACCESS_REMOTE_WRITE) ?
2164                      IRDMA_ACCESS_FLAGS_REMOTEWRITE : 0;
2165         hw_access |= (access & IB_ACCESS_REMOTE_READ) ?
2166                      IRDMA_ACCESS_FLAGS_REMOTEREAD : 0;
2167         hw_access |= (access & IB_ACCESS_MW_BIND) ?
2168                      IRDMA_ACCESS_FLAGS_BIND_WINDOW : 0;
2169         hw_access |= (access & IB_ZERO_BASED) ?
2170                      IRDMA_ACCESS_FLAGS_ZERO_BASED : 0;
2171         hw_access |= IRDMA_ACCESS_FLAGS_LOCALREAD;
2172
2173         return hw_access;
2174 }
2175
2176 /**
2177  * irdma_free_stag - free stag resource
2178  * @iwdev: irdma device
2179  * @stag: stag to free
2180  */
2181 static void irdma_free_stag(struct irdma_device *iwdev, u32 stag)
2182 {
2183         u32 stag_idx;
2184
2185         stag_idx = (stag & iwdev->rf->mr_stagmask) >> IRDMA_CQPSQ_STAG_IDX_S;
2186         irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_mrs, stag_idx);
2187 }
2188
2189 /**
2190  * irdma_create_stag - create random stag
2191  * @iwdev: irdma device
2192  */
2193 static u32 irdma_create_stag(struct irdma_device *iwdev)
2194 {
2195         u32 stag = 0;
2196         u32 stag_index = 0;
2197         u32 next_stag_index;
2198         u32 driver_key;
2199         u32 random;
2200         u8 consumer_key;
2201         int ret;
2202
2203         get_random_bytes(&random, sizeof(random));
2204         consumer_key = (u8)random;
2205
2206         driver_key = random & ~iwdev->rf->mr_stagmask;
2207         next_stag_index = (random & iwdev->rf->mr_stagmask) >> 8;
2208         next_stag_index %= iwdev->rf->max_mr;
2209
2210         ret = irdma_alloc_rsrc(iwdev->rf, iwdev->rf->allocated_mrs,
2211                                iwdev->rf->max_mr, &stag_index,
2212                                &next_stag_index);
2213         if (ret)
2214                 return stag;
2215         stag = stag_index << IRDMA_CQPSQ_STAG_IDX_S;
2216         stag |= driver_key;
2217         stag += (u32)consumer_key;
2218
2219         return stag;
2220 }
2221
2222 /**
2223  * irdma_next_pbl_addr - Get next pbl address
2224  * @pbl: pointer to a pble
2225  * @pinfo: info pointer
2226  * @idx: index
2227  */
2228 static inline u64 *irdma_next_pbl_addr(u64 *pbl, struct irdma_pble_info **pinfo,
2229                                        u32 *idx)
2230 {
2231         *idx += 1;
2232         if (!(*pinfo) || *idx != (*pinfo)->cnt)
2233                 return ++pbl;
2234         *idx = 0;
2235         (*pinfo)++;
2236
2237         return (*pinfo)->addr;
2238 }
2239
2240 /**
2241  * irdma_copy_user_pgaddrs - copy user page address to pble's os locally
2242  * @iwmr: iwmr for IB's user page addresses
2243  * @pbl: ple pointer to save 1 level or 0 level pble
2244  * @level: indicated level 0, 1 or 2
2245  */
2246 static void irdma_copy_user_pgaddrs(struct irdma_mr *iwmr, u64 *pbl,
2247                                     enum irdma_pble_level level)
2248 {
2249         struct ib_umem *region = iwmr->region;
2250         struct irdma_pbl *iwpbl = &iwmr->iwpbl;
2251         struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;
2252         struct irdma_pble_info *pinfo;
2253         struct ib_block_iter biter;
2254         u32 idx = 0;
2255         u32 pbl_cnt = 0;
2256
2257         pinfo = (level == PBLE_LEVEL_1) ? NULL : palloc->level2.leaf;
2258
2259         if (iwmr->type == IRDMA_MEMREG_TYPE_QP)
2260                 iwpbl->qp_mr.sq_page = sg_page(region->sgt_append.sgt.sgl);
2261
2262         rdma_umem_for_each_dma_block(region, &biter, iwmr->page_size) {
2263                 *pbl = rdma_block_iter_dma_address(&biter);
2264                 if (++pbl_cnt == palloc->total_cnt)
2265                         break;
2266                 pbl = irdma_next_pbl_addr(pbl, &pinfo, &idx);
2267         }
2268 }
2269
2270 /**
2271  * irdma_check_mem_contiguous - check if pbls stored in arr are contiguous
2272  * @arr: lvl1 pbl array
2273  * @npages: page count
2274  * @pg_size: page size
2275  *
2276  */
2277 static bool irdma_check_mem_contiguous(u64 *arr, u32 npages, u32 pg_size)
2278 {
2279         u32 pg_idx;
2280
2281         for (pg_idx = 0; pg_idx < npages; pg_idx++) {
2282                 if ((*arr + (pg_size * pg_idx)) != arr[pg_idx])
2283                         return false;
2284         }
2285
2286         return true;
2287 }
2288
2289 /**
2290  * irdma_check_mr_contiguous - check if MR is physically contiguous
2291  * @palloc: pbl allocation struct
2292  * @pg_size: page size
2293  */
2294 static bool irdma_check_mr_contiguous(struct irdma_pble_alloc *palloc,
2295                                       u32 pg_size)
2296 {
2297         struct irdma_pble_level2 *lvl2 = &palloc->level2;
2298         struct irdma_pble_info *leaf = lvl2->leaf;
2299         u64 *arr = NULL;
2300         u64 *start_addr = NULL;
2301         int i;
2302         bool ret;
2303
2304         if (palloc->level == PBLE_LEVEL_1) {
2305                 arr = palloc->level1.addr;
2306                 ret = irdma_check_mem_contiguous(arr, palloc->total_cnt,
2307                                                  pg_size);
2308                 return ret;
2309         }
2310
2311         start_addr = leaf->addr;
2312
2313         for (i = 0; i < lvl2->leaf_cnt; i++, leaf++) {
2314                 arr = leaf->addr;
2315                 if ((*start_addr + (i * pg_size * PBLE_PER_PAGE)) != *arr)
2316                         return false;
2317                 ret = irdma_check_mem_contiguous(arr, leaf->cnt, pg_size);
2318                 if (!ret)
2319                         return false;
2320         }
2321
2322         return true;
2323 }
2324
2325 /**
2326  * irdma_setup_pbles - copy user pg address to pble's
2327  * @rf: RDMA PCI function
2328  * @iwmr: mr pointer for this memory registration
2329  * @lvl: requested pble levels
2330  */
2331 static int irdma_setup_pbles(struct irdma_pci_f *rf, struct irdma_mr *iwmr,
2332                              u8 lvl)
2333 {
2334         struct irdma_pbl *iwpbl = &iwmr->iwpbl;
2335         struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;
2336         struct irdma_pble_info *pinfo;
2337         u64 *pbl;
2338         int status;
2339         enum irdma_pble_level level = PBLE_LEVEL_1;
2340
2341         if (lvl) {
2342                 status = irdma_get_pble(rf->pble_rsrc, palloc, iwmr->page_cnt,
2343                                         lvl);
2344                 if (status)
2345                         return status;
2346
2347                 iwpbl->pbl_allocated = true;
2348                 level = palloc->level;
2349                 pinfo = (level == PBLE_LEVEL_1) ? &palloc->level1 :
2350                                                   palloc->level2.leaf;
2351                 pbl = pinfo->addr;
2352         } else {
2353                 pbl = iwmr->pgaddrmem;
2354         }
2355
2356         irdma_copy_user_pgaddrs(iwmr, pbl, level);
2357
2358         if (lvl)
2359                 iwmr->pgaddrmem[0] = *pbl;
2360
2361         return 0;
2362 }
2363
2364 /**
2365  * irdma_handle_q_mem - handle memory for qp and cq
2366  * @iwdev: irdma device
2367  * @req: information for q memory management
2368  * @iwpbl: pble struct
2369  * @lvl: pble level mask
2370  */
2371 static int irdma_handle_q_mem(struct irdma_device *iwdev,
2372                               struct irdma_mem_reg_req *req,
2373                               struct irdma_pbl *iwpbl, u8 lvl)
2374 {
2375         struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;
2376         struct irdma_mr *iwmr = iwpbl->iwmr;
2377         struct irdma_qp_mr *qpmr = &iwpbl->qp_mr;
2378         struct irdma_cq_mr *cqmr = &iwpbl->cq_mr;
2379         struct irdma_hmc_pble *hmc_p;
2380         u64 *arr = iwmr->pgaddrmem;
2381         u32 pg_size, total;
2382         int err = 0;
2383         bool ret = true;
2384
2385         pg_size = iwmr->page_size;
2386         err = irdma_setup_pbles(iwdev->rf, iwmr, lvl);
2387         if (err)
2388                 return err;
2389
2390         if (lvl)
2391                 arr = palloc->level1.addr;
2392
2393         switch (iwmr->type) {
2394         case IRDMA_MEMREG_TYPE_QP:
2395                 total = req->sq_pages + req->rq_pages;
2396                 hmc_p = &qpmr->sq_pbl;
2397                 qpmr->shadow = (dma_addr_t)arr[total];
2398
2399                 if (lvl) {
2400                         ret = irdma_check_mem_contiguous(arr, req->sq_pages,
2401                                                          pg_size);
2402                         if (ret)
2403                                 ret = irdma_check_mem_contiguous(&arr[req->sq_pages],
2404                                                                  req->rq_pages,
2405                                                                  pg_size);
2406                 }
2407
2408                 if (!ret) {
2409                         hmc_p->idx = palloc->level1.idx;
2410                         hmc_p = &qpmr->rq_pbl;
2411                         hmc_p->idx = palloc->level1.idx + req->sq_pages;
2412                 } else {
2413                         hmc_p->addr = arr[0];
2414                         hmc_p = &qpmr->rq_pbl;
2415                         hmc_p->addr = arr[req->sq_pages];
2416                 }
2417                 break;
2418         case IRDMA_MEMREG_TYPE_CQ:
2419                 hmc_p = &cqmr->cq_pbl;
2420
2421                 if (!cqmr->split)
2422                         cqmr->shadow = (dma_addr_t)arr[req->cq_pages];
2423
2424                 if (lvl)
2425                         ret = irdma_check_mem_contiguous(arr, req->cq_pages,
2426                                                          pg_size);
2427
2428                 if (!ret)
2429                         hmc_p->idx = palloc->level1.idx;
2430                 else
2431                         hmc_p->addr = arr[0];
2432         break;
2433         default:
2434                 ibdev_dbg(&iwdev->ibdev, "VERBS: MR type error\n");
2435                 err = -EINVAL;
2436         }
2437
2438         if (lvl && ret) {
2439                 irdma_free_pble(iwdev->rf->pble_rsrc, palloc);
2440                 iwpbl->pbl_allocated = false;
2441         }
2442
2443         return err;
2444 }
2445
2446 /**
2447  * irdma_hw_alloc_mw - create the hw memory window
2448  * @iwdev: irdma device
2449  * @iwmr: pointer to memory window info
2450  */
2451 static int irdma_hw_alloc_mw(struct irdma_device *iwdev, struct irdma_mr *iwmr)
2452 {
2453         struct irdma_mw_alloc_info *info;
2454         struct irdma_pd *iwpd = to_iwpd(iwmr->ibmr.pd);
2455         struct irdma_cqp_request *cqp_request;
2456         struct cqp_cmds_info *cqp_info;
2457         int status;
2458
2459         cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true);
2460         if (!cqp_request)
2461                 return -ENOMEM;
2462
2463         cqp_info = &cqp_request->info;
2464         info = &cqp_info->in.u.mw_alloc.info;
2465         memset(info, 0, sizeof(*info));
2466         if (iwmr->ibmw.type == IB_MW_TYPE_1)
2467                 info->mw_wide = true;
2468
2469         info->page_size = PAGE_SIZE;
2470         info->mw_stag_index = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S;
2471         info->pd_id = iwpd->sc_pd.pd_id;
2472         info->remote_access = true;
2473         cqp_info->cqp_cmd = IRDMA_OP_MW_ALLOC;
2474         cqp_info->post_sq = 1;
2475         cqp_info->in.u.mw_alloc.dev = &iwdev->rf->sc_dev;
2476         cqp_info->in.u.mw_alloc.scratch = (uintptr_t)cqp_request;
2477         status = irdma_handle_cqp_op(iwdev->rf, cqp_request);
2478         irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request);
2479
2480         return status;
2481 }
2482
2483 /**
2484  * irdma_alloc_mw - Allocate memory window
2485  * @ibmw: Memory Window
2486  * @udata: user data pointer
2487  */
2488 static int irdma_alloc_mw(struct ib_mw *ibmw, struct ib_udata *udata)
2489 {
2490         struct irdma_device *iwdev = to_iwdev(ibmw->device);
2491         struct irdma_mr *iwmr = to_iwmw(ibmw);
2492         int err_code;
2493         u32 stag;
2494
2495         stag = irdma_create_stag(iwdev);
2496         if (!stag)
2497                 return -ENOMEM;
2498
2499         iwmr->stag = stag;
2500         ibmw->rkey = stag;
2501
2502         err_code = irdma_hw_alloc_mw(iwdev, iwmr);
2503         if (err_code) {
2504                 irdma_free_stag(iwdev, stag);
2505                 return err_code;
2506         }
2507
2508         return 0;
2509 }
2510
2511 /**
2512  * irdma_dealloc_mw - Dealloc memory window
2513  * @ibmw: memory window structure.
2514  */
2515 static int irdma_dealloc_mw(struct ib_mw *ibmw)
2516 {
2517         struct ib_pd *ibpd = ibmw->pd;
2518         struct irdma_pd *iwpd = to_iwpd(ibpd);
2519         struct irdma_mr *iwmr = to_iwmr((struct ib_mr *)ibmw);
2520         struct irdma_device *iwdev = to_iwdev(ibmw->device);
2521         struct irdma_cqp_request *cqp_request;
2522         struct cqp_cmds_info *cqp_info;
2523         struct irdma_dealloc_stag_info *info;
2524
2525         cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true);
2526         if (!cqp_request)
2527                 return -ENOMEM;
2528
2529         cqp_info = &cqp_request->info;
2530         info = &cqp_info->in.u.dealloc_stag.info;
2531         memset(info, 0, sizeof(*info));
2532         info->pd_id = iwpd->sc_pd.pd_id;
2533         info->stag_idx = ibmw->rkey >> IRDMA_CQPSQ_STAG_IDX_S;
2534         info->mr = false;
2535         cqp_info->cqp_cmd = IRDMA_OP_DEALLOC_STAG;
2536         cqp_info->post_sq = 1;
2537         cqp_info->in.u.dealloc_stag.dev = &iwdev->rf->sc_dev;
2538         cqp_info->in.u.dealloc_stag.scratch = (uintptr_t)cqp_request;
2539         irdma_handle_cqp_op(iwdev->rf, cqp_request);
2540         irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request);
2541         irdma_free_stag(iwdev, iwmr->stag);
2542
2543         return 0;
2544 }
2545
2546 /**
2547  * irdma_hw_alloc_stag - cqp command to allocate stag
2548  * @iwdev: irdma device
2549  * @iwmr: irdma mr pointer
2550  */
2551 static int irdma_hw_alloc_stag(struct irdma_device *iwdev,
2552                                struct irdma_mr *iwmr)
2553 {
2554         struct irdma_allocate_stag_info *info;
2555         struct irdma_pd *iwpd = to_iwpd(iwmr->ibmr.pd);
2556         int status;
2557         struct irdma_cqp_request *cqp_request;
2558         struct cqp_cmds_info *cqp_info;
2559
2560         cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true);
2561         if (!cqp_request)
2562                 return -ENOMEM;
2563
2564         cqp_info = &cqp_request->info;
2565         info = &cqp_info->in.u.alloc_stag.info;
2566         memset(info, 0, sizeof(*info));
2567         info->page_size = PAGE_SIZE;
2568         info->stag_idx = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S;
2569         info->pd_id = iwpd->sc_pd.pd_id;
2570         info->total_len = iwmr->len;
2571         info->remote_access = true;
2572         cqp_info->cqp_cmd = IRDMA_OP_ALLOC_STAG;
2573         cqp_info->post_sq = 1;
2574         cqp_info->in.u.alloc_stag.dev = &iwdev->rf->sc_dev;
2575         cqp_info->in.u.alloc_stag.scratch = (uintptr_t)cqp_request;
2576         status = irdma_handle_cqp_op(iwdev->rf, cqp_request);
2577         irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request);
2578
2579         return status;
2580 }
2581
2582 /**
2583  * irdma_alloc_mr - register stag for fast memory registration
2584  * @pd: ibpd pointer
2585  * @mr_type: memory for stag registrion
2586  * @max_num_sg: man number of pages
2587  */
2588 static struct ib_mr *irdma_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
2589                                     u32 max_num_sg)
2590 {
2591         struct irdma_device *iwdev = to_iwdev(pd->device);
2592         struct irdma_pble_alloc *palloc;
2593         struct irdma_pbl *iwpbl;
2594         struct irdma_mr *iwmr;
2595         u32 stag;
2596         int err_code;
2597
2598         iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL);
2599         if (!iwmr)
2600                 return ERR_PTR(-ENOMEM);
2601
2602         stag = irdma_create_stag(iwdev);
2603         if (!stag) {
2604                 err_code = -ENOMEM;
2605                 goto err;
2606         }
2607
2608         iwmr->stag = stag;
2609         iwmr->ibmr.rkey = stag;
2610         iwmr->ibmr.lkey = stag;
2611         iwmr->ibmr.pd = pd;
2612         iwmr->ibmr.device = pd->device;
2613         iwpbl = &iwmr->iwpbl;
2614         iwpbl->iwmr = iwmr;
2615         iwmr->type = IRDMA_MEMREG_TYPE_MEM;
2616         palloc = &iwpbl->pble_alloc;
2617         iwmr->page_cnt = max_num_sg;
2618         err_code = irdma_get_pble(iwdev->rf->pble_rsrc, palloc, iwmr->page_cnt,
2619                                   false);
2620         if (err_code)
2621                 goto err_get_pble;
2622
2623         err_code = irdma_hw_alloc_stag(iwdev, iwmr);
2624         if (err_code)
2625                 goto err_alloc_stag;
2626
2627         iwpbl->pbl_allocated = true;
2628
2629         return &iwmr->ibmr;
2630 err_alloc_stag:
2631         irdma_free_pble(iwdev->rf->pble_rsrc, palloc);
2632 err_get_pble:
2633         irdma_free_stag(iwdev, stag);
2634 err:
2635         kfree(iwmr);
2636
2637         return ERR_PTR(err_code);
2638 }
2639
2640 /**
2641  * irdma_set_page - populate pbl list for fmr
2642  * @ibmr: ib mem to access iwarp mr pointer
2643  * @addr: page dma address fro pbl list
2644  */
2645 static int irdma_set_page(struct ib_mr *ibmr, u64 addr)
2646 {
2647         struct irdma_mr *iwmr = to_iwmr(ibmr);
2648         struct irdma_pbl *iwpbl = &iwmr->iwpbl;
2649         struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;
2650         u64 *pbl;
2651
2652         if (unlikely(iwmr->npages == iwmr->page_cnt))
2653                 return -ENOMEM;
2654
2655         if (palloc->level == PBLE_LEVEL_2) {
2656                 struct irdma_pble_info *palloc_info =
2657                         palloc->level2.leaf + (iwmr->npages >> PBLE_512_SHIFT);
2658
2659                 palloc_info->addr[iwmr->npages & (PBLE_PER_PAGE - 1)] = addr;
2660         } else {
2661                 pbl = palloc->level1.addr;
2662                 pbl[iwmr->npages] = addr;
2663         }
2664         iwmr->npages++;
2665
2666         return 0;
2667 }
2668
2669 /**
2670  * irdma_map_mr_sg - map of sg list for fmr
2671  * @ibmr: ib mem to access iwarp mr pointer
2672  * @sg: scatter gather list
2673  * @sg_nents: number of sg pages
2674  * @sg_offset: scatter gather list for fmr
2675  */
2676 static int irdma_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg,
2677                            int sg_nents, unsigned int *sg_offset)
2678 {
2679         struct irdma_mr *iwmr = to_iwmr(ibmr);
2680
2681         iwmr->npages = 0;
2682
2683         return ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, irdma_set_page);
2684 }
2685
2686 /**
2687  * irdma_hwreg_mr - send cqp command for memory registration
2688  * @iwdev: irdma device
2689  * @iwmr: irdma mr pointer
2690  * @access: access for MR
2691  */
2692 static int irdma_hwreg_mr(struct irdma_device *iwdev, struct irdma_mr *iwmr,
2693                           u16 access)
2694 {
2695         struct irdma_pbl *iwpbl = &iwmr->iwpbl;
2696         struct irdma_reg_ns_stag_info *stag_info;
2697         struct irdma_pd *iwpd = to_iwpd(iwmr->ibmr.pd);
2698         struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;
2699         struct irdma_cqp_request *cqp_request;
2700         struct cqp_cmds_info *cqp_info;
2701         int ret;
2702
2703         cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true);
2704         if (!cqp_request)
2705                 return -ENOMEM;
2706
2707         cqp_info = &cqp_request->info;
2708         stag_info = &cqp_info->in.u.mr_reg_non_shared.info;
2709         memset(stag_info, 0, sizeof(*stag_info));
2710         stag_info->va = iwpbl->user_base;
2711         stag_info->stag_idx = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S;
2712         stag_info->stag_key = (u8)iwmr->stag;
2713         stag_info->total_len = iwmr->len;
2714         stag_info->access_rights = irdma_get_mr_access(access);
2715         stag_info->pd_id = iwpd->sc_pd.pd_id;
2716         if (stag_info->access_rights & IRDMA_ACCESS_FLAGS_ZERO_BASED)
2717                 stag_info->addr_type = IRDMA_ADDR_TYPE_ZERO_BASED;
2718         else
2719                 stag_info->addr_type = IRDMA_ADDR_TYPE_VA_BASED;
2720         stag_info->page_size = iwmr->page_size;
2721
2722         if (iwpbl->pbl_allocated) {
2723                 if (palloc->level == PBLE_LEVEL_1) {
2724                         stag_info->first_pm_pbl_index = palloc->level1.idx;
2725                         stag_info->chunk_size = 1;
2726                 } else {
2727                         stag_info->first_pm_pbl_index = palloc->level2.root.idx;
2728                         stag_info->chunk_size = 3;
2729                 }
2730         } else {
2731                 stag_info->reg_addr_pa = iwmr->pgaddrmem[0];
2732         }
2733
2734         cqp_info->cqp_cmd = IRDMA_OP_MR_REG_NON_SHARED;
2735         cqp_info->post_sq = 1;
2736         cqp_info->in.u.mr_reg_non_shared.dev = &iwdev->rf->sc_dev;
2737         cqp_info->in.u.mr_reg_non_shared.scratch = (uintptr_t)cqp_request;
2738         ret = irdma_handle_cqp_op(iwdev->rf, cqp_request);
2739         irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request);
2740
2741         return ret;
2742 }
2743
2744 static int irdma_reg_user_mr_type_mem(struct irdma_mr *iwmr, int access)
2745 {
2746         struct irdma_device *iwdev = to_iwdev(iwmr->ibmr.device);
2747         struct irdma_pbl *iwpbl = &iwmr->iwpbl;
2748         u32 stag;
2749         u8 lvl;
2750         int err;
2751
2752         lvl = iwmr->page_cnt != 1 ? PBLE_LEVEL_1 | PBLE_LEVEL_2 : PBLE_LEVEL_0;
2753
2754         err = irdma_setup_pbles(iwdev->rf, iwmr, lvl);
2755         if (err)
2756                 return err;
2757
2758         if (lvl) {
2759                 err = irdma_check_mr_contiguous(&iwpbl->pble_alloc,
2760                                                 iwmr->page_size);
2761                 if (err) {
2762                         irdma_free_pble(iwdev->rf->pble_rsrc, &iwpbl->pble_alloc);
2763                         iwpbl->pbl_allocated = false;
2764                 }
2765         }
2766
2767         stag = irdma_create_stag(iwdev);
2768         if (!stag) {
2769                 err = -ENOMEM;
2770                 goto free_pble;
2771         }
2772
2773         iwmr->stag = stag;
2774         iwmr->ibmr.rkey = stag;
2775         iwmr->ibmr.lkey = stag;
2776         err = irdma_hwreg_mr(iwdev, iwmr, access);
2777         if (err)
2778                 goto err_hwreg;
2779
2780         return 0;
2781
2782 err_hwreg:
2783         irdma_free_stag(iwdev, stag);
2784
2785 free_pble:
2786         if (iwpbl->pble_alloc.level != PBLE_LEVEL_0 && iwpbl->pbl_allocated)
2787                 irdma_free_pble(iwdev->rf->pble_rsrc, &iwpbl->pble_alloc);
2788
2789         return err;
2790 }
2791
2792 static struct irdma_mr *irdma_alloc_iwmr(struct ib_umem *region,
2793                                          struct ib_pd *pd, u64 virt,
2794                                          enum irdma_memreg_type reg_type)
2795 {
2796         struct irdma_device *iwdev = to_iwdev(pd->device);
2797         struct irdma_pbl *iwpbl = NULL;
2798         struct irdma_mr *iwmr = NULL;
2799         unsigned long pgsz_bitmap;
2800
2801         iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL);
2802         if (!iwmr)
2803                 return ERR_PTR(-ENOMEM);
2804
2805         iwpbl = &iwmr->iwpbl;
2806         iwpbl->iwmr = iwmr;
2807         iwmr->region = region;
2808         iwmr->ibmr.pd = pd;
2809         iwmr->ibmr.device = pd->device;
2810         iwmr->ibmr.iova = virt;
2811         iwmr->type = reg_type;
2812
2813         pgsz_bitmap = (reg_type == IRDMA_MEMREG_TYPE_MEM) ?
2814                 iwdev->rf->sc_dev.hw_attrs.page_size_cap : PAGE_SIZE;
2815
2816         iwmr->page_size = ib_umem_find_best_pgsz(region, pgsz_bitmap, virt);
2817         if (unlikely(!iwmr->page_size)) {
2818                 kfree(iwmr);
2819                 return ERR_PTR(-EOPNOTSUPP);
2820         }
2821
2822         iwmr->len = region->length;
2823         iwpbl->user_base = virt;
2824         iwmr->page_cnt = ib_umem_num_dma_blocks(region, iwmr->page_size);
2825
2826         return iwmr;
2827 }
2828
2829 static void irdma_free_iwmr(struct irdma_mr *iwmr)
2830 {
2831         kfree(iwmr);
2832 }
2833
2834 static int irdma_reg_user_mr_type_qp(struct irdma_mem_reg_req req,
2835                                      struct ib_udata *udata,
2836                                      struct irdma_mr *iwmr)
2837 {
2838         struct irdma_device *iwdev = to_iwdev(iwmr->ibmr.device);
2839         struct irdma_pbl *iwpbl = &iwmr->iwpbl;
2840         struct irdma_ucontext *ucontext = NULL;
2841         unsigned long flags;
2842         u32 total;
2843         int err;
2844         u8 lvl;
2845
2846         total = req.sq_pages + req.rq_pages + 1;
2847         if (total > iwmr->page_cnt)
2848                 return -EINVAL;
2849
2850         total = req.sq_pages + req.rq_pages;
2851         lvl = total > 2 ? PBLE_LEVEL_1 : PBLE_LEVEL_0;
2852         err = irdma_handle_q_mem(iwdev, &req, iwpbl, lvl);
2853         if (err)
2854                 return err;
2855
2856         ucontext = rdma_udata_to_drv_context(udata, struct irdma_ucontext,
2857                                              ibucontext);
2858         spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags);
2859         list_add_tail(&iwpbl->list, &ucontext->qp_reg_mem_list);
2860         iwpbl->on_list = true;
2861         spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags);
2862
2863         return 0;
2864 }
2865
2866 static int irdma_reg_user_mr_type_cq(struct irdma_mem_reg_req req,
2867                                      struct ib_udata *udata,
2868                                      struct irdma_mr *iwmr)
2869 {
2870         struct irdma_device *iwdev = to_iwdev(iwmr->ibmr.device);
2871         struct irdma_pbl *iwpbl = &iwmr->iwpbl;
2872         struct irdma_ucontext *ucontext = NULL;
2873         u8 shadow_pgcnt = 1;
2874         unsigned long flags;
2875         u32 total;
2876         int err;
2877         u8 lvl;
2878
2879         if (iwdev->rf->sc_dev.hw_attrs.uk_attrs.feature_flags & IRDMA_FEATURE_CQ_RESIZE)
2880                 shadow_pgcnt = 0;
2881         total = req.cq_pages + shadow_pgcnt;
2882         if (total > iwmr->page_cnt)
2883                 return -EINVAL;
2884
2885         lvl = req.cq_pages > 1 ? PBLE_LEVEL_1 : PBLE_LEVEL_0;
2886         err = irdma_handle_q_mem(iwdev, &req, iwpbl, lvl);
2887         if (err)
2888                 return err;
2889
2890         ucontext = rdma_udata_to_drv_context(udata, struct irdma_ucontext,
2891                                              ibucontext);
2892         spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
2893         list_add_tail(&iwpbl->list, &ucontext->cq_reg_mem_list);
2894         iwpbl->on_list = true;
2895         spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
2896
2897         return 0;
2898 }
2899
2900 /**
2901  * irdma_reg_user_mr - Register a user memory region
2902  * @pd: ptr of pd
2903  * @start: virtual start address
2904  * @len: length of mr
2905  * @virt: virtual address
2906  * @access: access of mr
2907  * @udata: user data
2908  */
2909 static struct ib_mr *irdma_reg_user_mr(struct ib_pd *pd, u64 start, u64 len,
2910                                        u64 virt, int access,
2911                                        struct ib_udata *udata)
2912 {
2913 #define IRDMA_MEM_REG_MIN_REQ_LEN offsetofend(struct irdma_mem_reg_req, sq_pages)
2914         struct irdma_device *iwdev = to_iwdev(pd->device);
2915         struct irdma_mem_reg_req req = {};
2916         struct ib_umem *region = NULL;
2917         struct irdma_mr *iwmr = NULL;
2918         int err;
2919
2920         if (len > iwdev->rf->sc_dev.hw_attrs.max_mr_size)
2921                 return ERR_PTR(-EINVAL);
2922
2923         if (udata->inlen < IRDMA_MEM_REG_MIN_REQ_LEN)
2924                 return ERR_PTR(-EINVAL);
2925
2926         region = ib_umem_get(pd->device, start, len, access);
2927
2928         if (IS_ERR(region)) {
2929                 ibdev_dbg(&iwdev->ibdev,
2930                           "VERBS: Failed to create ib_umem region\n");
2931                 return (struct ib_mr *)region;
2932         }
2933
2934         if (ib_copy_from_udata(&req, udata, min(sizeof(req), udata->inlen))) {
2935                 ib_umem_release(region);
2936                 return ERR_PTR(-EFAULT);
2937         }
2938
2939         iwmr = irdma_alloc_iwmr(region, pd, virt, req.reg_type);
2940         if (IS_ERR(iwmr)) {
2941                 ib_umem_release(region);
2942                 return (struct ib_mr *)iwmr;
2943         }
2944
2945         switch (req.reg_type) {
2946         case IRDMA_MEMREG_TYPE_QP:
2947                 err = irdma_reg_user_mr_type_qp(req, udata, iwmr);
2948                 if (err)
2949                         goto error;
2950
2951                 break;
2952         case IRDMA_MEMREG_TYPE_CQ:
2953                 err = irdma_reg_user_mr_type_cq(req, udata, iwmr);
2954                 if (err)
2955                         goto error;
2956                 break;
2957         case IRDMA_MEMREG_TYPE_MEM:
2958                 err = irdma_reg_user_mr_type_mem(iwmr, access);
2959                 if (err)
2960                         goto error;
2961
2962                 break;
2963         default:
2964                 err = -EINVAL;
2965                 goto error;
2966         }
2967
2968         return &iwmr->ibmr;
2969 error:
2970         ib_umem_release(region);
2971         irdma_free_iwmr(iwmr);
2972
2973         return ERR_PTR(err);
2974 }
2975
2976 static struct ib_mr *irdma_reg_user_mr_dmabuf(struct ib_pd *pd, u64 start,
2977                                               u64 len, u64 virt,
2978                                               int fd, int access,
2979                                               struct ib_udata *udata)
2980 {
2981         struct irdma_device *iwdev = to_iwdev(pd->device);
2982         struct ib_umem_dmabuf *umem_dmabuf;
2983         struct irdma_mr *iwmr;
2984         int err;
2985
2986         if (len > iwdev->rf->sc_dev.hw_attrs.max_mr_size)
2987                 return ERR_PTR(-EINVAL);
2988
2989         umem_dmabuf = ib_umem_dmabuf_get_pinned(pd->device, start, len, fd, access);
2990         if (IS_ERR(umem_dmabuf)) {
2991                 err = PTR_ERR(umem_dmabuf);
2992                 ibdev_dbg(&iwdev->ibdev, "Failed to get dmabuf umem[%d]\n", err);
2993                 return ERR_PTR(err);
2994         }
2995
2996         iwmr = irdma_alloc_iwmr(&umem_dmabuf->umem, pd, virt, IRDMA_MEMREG_TYPE_MEM);
2997         if (IS_ERR(iwmr)) {
2998                 err = PTR_ERR(iwmr);
2999                 goto err_release;
3000         }
3001
3002         err = irdma_reg_user_mr_type_mem(iwmr, access);
3003         if (err)
3004                 goto err_iwmr;
3005
3006         return &iwmr->ibmr;
3007
3008 err_iwmr:
3009         irdma_free_iwmr(iwmr);
3010
3011 err_release:
3012         ib_umem_release(&umem_dmabuf->umem);
3013
3014         return ERR_PTR(err);
3015 }
3016
3017 /**
3018  * irdma_reg_phys_mr - register kernel physical memory
3019  * @pd: ibpd pointer
3020  * @addr: physical address of memory to register
3021  * @size: size of memory to register
3022  * @access: Access rights
3023  * @iova_start: start of virtual address for physical buffers
3024  */
3025 struct ib_mr *irdma_reg_phys_mr(struct ib_pd *pd, u64 addr, u64 size, int access,
3026                                 u64 *iova_start)
3027 {
3028         struct irdma_device *iwdev = to_iwdev(pd->device);
3029         struct irdma_pbl *iwpbl;
3030         struct irdma_mr *iwmr;
3031         u32 stag;
3032         int ret;
3033
3034         iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL);
3035         if (!iwmr)
3036                 return ERR_PTR(-ENOMEM);
3037
3038         iwmr->ibmr.pd = pd;
3039         iwmr->ibmr.device = pd->device;
3040         iwpbl = &iwmr->iwpbl;
3041         iwpbl->iwmr = iwmr;
3042         iwmr->type = IRDMA_MEMREG_TYPE_MEM;
3043         iwpbl->user_base = *iova_start;
3044         stag = irdma_create_stag(iwdev);
3045         if (!stag) {
3046                 ret = -ENOMEM;
3047                 goto err;
3048         }
3049
3050         iwmr->stag = stag;
3051         iwmr->ibmr.iova = *iova_start;
3052         iwmr->ibmr.rkey = stag;
3053         iwmr->ibmr.lkey = stag;
3054         iwmr->page_cnt = 1;
3055         iwmr->pgaddrmem[0] = addr;
3056         iwmr->len = size;
3057         iwmr->page_size = SZ_4K;
3058         ret = irdma_hwreg_mr(iwdev, iwmr, access);
3059         if (ret) {
3060                 irdma_free_stag(iwdev, stag);
3061                 goto err;
3062         }
3063
3064         return &iwmr->ibmr;
3065
3066 err:
3067         kfree(iwmr);
3068
3069         return ERR_PTR(ret);
3070 }
3071
3072 /**
3073  * irdma_get_dma_mr - register physical mem
3074  * @pd: ptr of pd
3075  * @acc: access for memory
3076  */
3077 static struct ib_mr *irdma_get_dma_mr(struct ib_pd *pd, int acc)
3078 {
3079         u64 kva = 0;
3080
3081         return irdma_reg_phys_mr(pd, 0, 0, acc, &kva);
3082 }
3083
3084 /**
3085  * irdma_del_memlist - Deleting pbl list entries for CQ/QP
3086  * @iwmr: iwmr for IB's user page addresses
3087  * @ucontext: ptr to user context
3088  */
3089 static void irdma_del_memlist(struct irdma_mr *iwmr,
3090                               struct irdma_ucontext *ucontext)
3091 {
3092         struct irdma_pbl *iwpbl = &iwmr->iwpbl;
3093         unsigned long flags;
3094
3095         switch (iwmr->type) {
3096         case IRDMA_MEMREG_TYPE_CQ:
3097                 spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags);
3098                 if (iwpbl->on_list) {
3099                         iwpbl->on_list = false;
3100                         list_del(&iwpbl->list);
3101                 }
3102                 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags);
3103                 break;
3104         case IRDMA_MEMREG_TYPE_QP:
3105                 spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags);
3106                 if (iwpbl->on_list) {
3107                         iwpbl->on_list = false;
3108                         list_del(&iwpbl->list);
3109                 }
3110                 spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags);
3111                 break;
3112         default:
3113                 break;
3114         }
3115 }
3116
3117 /**
3118  * irdma_dereg_mr - deregister mr
3119  * @ib_mr: mr ptr for dereg
3120  * @udata: user data
3121  */
3122 static int irdma_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata)
3123 {
3124         struct ib_pd *ibpd = ib_mr->pd;
3125         struct irdma_pd *iwpd = to_iwpd(ibpd);
3126         struct irdma_mr *iwmr = to_iwmr(ib_mr);
3127         struct irdma_device *iwdev = to_iwdev(ib_mr->device);
3128         struct irdma_dealloc_stag_info *info;
3129         struct irdma_pbl *iwpbl = &iwmr->iwpbl;
3130         struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc;
3131         struct irdma_cqp_request *cqp_request;
3132         struct cqp_cmds_info *cqp_info;
3133         int status;
3134
3135         if (iwmr->type != IRDMA_MEMREG_TYPE_MEM) {
3136                 if (iwmr->region) {
3137                         struct irdma_ucontext *ucontext;
3138
3139                         ucontext = rdma_udata_to_drv_context(udata,
3140                                                 struct irdma_ucontext,
3141                                                 ibucontext);
3142                         irdma_del_memlist(iwmr, ucontext);
3143                 }
3144                 goto done;
3145         }
3146
3147         cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true);
3148         if (!cqp_request)
3149                 return -ENOMEM;
3150
3151         cqp_info = &cqp_request->info;
3152         info = &cqp_info->in.u.dealloc_stag.info;
3153         memset(info, 0, sizeof(*info));
3154         info->pd_id = iwpd->sc_pd.pd_id;
3155         info->stag_idx = ib_mr->rkey >> IRDMA_CQPSQ_STAG_IDX_S;
3156         info->mr = true;
3157         if (iwpbl->pbl_allocated)
3158                 info->dealloc_pbl = true;
3159
3160         cqp_info->cqp_cmd = IRDMA_OP_DEALLOC_STAG;
3161         cqp_info->post_sq = 1;
3162         cqp_info->in.u.dealloc_stag.dev = &iwdev->rf->sc_dev;
3163         cqp_info->in.u.dealloc_stag.scratch = (uintptr_t)cqp_request;
3164         status = irdma_handle_cqp_op(iwdev->rf, cqp_request);
3165         irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request);
3166         if (status)
3167                 return status;
3168
3169         irdma_free_stag(iwdev, iwmr->stag);
3170 done:
3171         if (iwpbl->pbl_allocated)
3172                 irdma_free_pble(iwdev->rf->pble_rsrc, palloc);
3173         ib_umem_release(iwmr->region);
3174         kfree(iwmr);
3175
3176         return 0;
3177 }
3178
3179 /**
3180  * irdma_post_send -  kernel application wr
3181  * @ibqp: qp ptr for wr
3182  * @ib_wr: work request ptr
3183  * @bad_wr: return of bad wr if err
3184  */
3185 static int irdma_post_send(struct ib_qp *ibqp,
3186                            const struct ib_send_wr *ib_wr,
3187                            const struct ib_send_wr **bad_wr)
3188 {
3189         struct irdma_qp *iwqp;
3190         struct irdma_qp_uk *ukqp;
3191         struct irdma_sc_dev *dev;
3192         struct irdma_post_sq_info info;
3193         int err = 0;
3194         unsigned long flags;
3195         bool inv_stag;
3196         struct irdma_ah *ah;
3197
3198         iwqp = to_iwqp(ibqp);
3199         ukqp = &iwqp->sc_qp.qp_uk;
3200         dev = &iwqp->iwdev->rf->sc_dev;
3201
3202         spin_lock_irqsave(&iwqp->lock, flags);
3203         while (ib_wr) {
3204                 memset(&info, 0, sizeof(info));
3205                 inv_stag = false;
3206                 info.wr_id = (ib_wr->wr_id);
3207                 if ((ib_wr->send_flags & IB_SEND_SIGNALED) || iwqp->sig_all)
3208                         info.signaled = true;
3209                 if (ib_wr->send_flags & IB_SEND_FENCE)
3210                         info.read_fence = true;
3211                 switch (ib_wr->opcode) {
3212                 case IB_WR_SEND_WITH_IMM:
3213                         if (ukqp->qp_caps & IRDMA_SEND_WITH_IMM) {
3214                                 info.imm_data_valid = true;
3215                                 info.imm_data = ntohl(ib_wr->ex.imm_data);
3216                         } else {
3217                                 err = -EINVAL;
3218                                 break;
3219                         }
3220                         fallthrough;
3221                 case IB_WR_SEND:
3222                 case IB_WR_SEND_WITH_INV:
3223                         if (ib_wr->opcode == IB_WR_SEND ||
3224                             ib_wr->opcode == IB_WR_SEND_WITH_IMM) {
3225                                 if (ib_wr->send_flags & IB_SEND_SOLICITED)
3226                                         info.op_type = IRDMA_OP_TYPE_SEND_SOL;
3227                                 else
3228                                         info.op_type = IRDMA_OP_TYPE_SEND;
3229                         } else {
3230                                 if (ib_wr->send_flags & IB_SEND_SOLICITED)
3231                                         info.op_type = IRDMA_OP_TYPE_SEND_SOL_INV;
3232                                 else
3233                                         info.op_type = IRDMA_OP_TYPE_SEND_INV;
3234                                 info.stag_to_inv = ib_wr->ex.invalidate_rkey;
3235                         }
3236
3237                         info.op.send.num_sges = ib_wr->num_sge;
3238                         info.op.send.sg_list = ib_wr->sg_list;
3239                         if (iwqp->ibqp.qp_type == IB_QPT_UD ||
3240                             iwqp->ibqp.qp_type == IB_QPT_GSI) {
3241                                 ah = to_iwah(ud_wr(ib_wr)->ah);
3242                                 info.op.send.ah_id = ah->sc_ah.ah_info.ah_idx;
3243                                 info.op.send.qkey = ud_wr(ib_wr)->remote_qkey;
3244                                 info.op.send.dest_qp = ud_wr(ib_wr)->remote_qpn;
3245                         }
3246
3247                         if (ib_wr->send_flags & IB_SEND_INLINE)
3248                                 err = irdma_uk_inline_send(ukqp, &info, false);
3249                         else
3250                                 err = irdma_uk_send(ukqp, &info, false);
3251                         break;
3252                 case IB_WR_RDMA_WRITE_WITH_IMM:
3253                         if (ukqp->qp_caps & IRDMA_WRITE_WITH_IMM) {
3254                                 info.imm_data_valid = true;
3255                                 info.imm_data = ntohl(ib_wr->ex.imm_data);
3256                         } else {
3257                                 err = -EINVAL;
3258                                 break;
3259                         }
3260                         fallthrough;
3261                 case IB_WR_RDMA_WRITE:
3262                         if (ib_wr->send_flags & IB_SEND_SOLICITED)
3263                                 info.op_type = IRDMA_OP_TYPE_RDMA_WRITE_SOL;
3264                         else
3265                                 info.op_type = IRDMA_OP_TYPE_RDMA_WRITE;
3266
3267                         info.op.rdma_write.num_lo_sges = ib_wr->num_sge;
3268                         info.op.rdma_write.lo_sg_list = ib_wr->sg_list;
3269                         info.op.rdma_write.rem_addr.addr =
3270                                 rdma_wr(ib_wr)->remote_addr;
3271                         info.op.rdma_write.rem_addr.lkey = rdma_wr(ib_wr)->rkey;
3272                         if (ib_wr->send_flags & IB_SEND_INLINE)
3273                                 err = irdma_uk_inline_rdma_write(ukqp, &info, false);
3274                         else
3275                                 err = irdma_uk_rdma_write(ukqp, &info, false);
3276                         break;
3277                 case IB_WR_RDMA_READ_WITH_INV:
3278                         inv_stag = true;
3279                         fallthrough;
3280                 case IB_WR_RDMA_READ:
3281                         if (ib_wr->num_sge >
3282                             dev->hw_attrs.uk_attrs.max_hw_read_sges) {
3283                                 err = -EINVAL;
3284                                 break;
3285                         }
3286                         info.op_type = IRDMA_OP_TYPE_RDMA_READ;
3287                         info.op.rdma_read.rem_addr.addr = rdma_wr(ib_wr)->remote_addr;
3288                         info.op.rdma_read.rem_addr.lkey = rdma_wr(ib_wr)->rkey;
3289                         info.op.rdma_read.lo_sg_list = (void *)ib_wr->sg_list;
3290                         info.op.rdma_read.num_lo_sges = ib_wr->num_sge;
3291                         err = irdma_uk_rdma_read(ukqp, &info, inv_stag, false);
3292                         break;
3293                 case IB_WR_LOCAL_INV:
3294                         info.op_type = IRDMA_OP_TYPE_INV_STAG;
3295                         info.local_fence = info.read_fence;
3296                         info.op.inv_local_stag.target_stag = ib_wr->ex.invalidate_rkey;
3297                         err = irdma_uk_stag_local_invalidate(ukqp, &info, true);
3298                         break;
3299                 case IB_WR_REG_MR: {
3300                         struct irdma_mr *iwmr = to_iwmr(reg_wr(ib_wr)->mr);
3301                         struct irdma_pble_alloc *palloc = &iwmr->iwpbl.pble_alloc;
3302                         struct irdma_fast_reg_stag_info stag_info = {};
3303
3304                         stag_info.signaled = info.signaled;
3305                         stag_info.read_fence = info.read_fence;
3306                         stag_info.access_rights = irdma_get_mr_access(reg_wr(ib_wr)->access);
3307                         stag_info.stag_key = reg_wr(ib_wr)->key & 0xff;
3308                         stag_info.stag_idx = reg_wr(ib_wr)->key >> 8;
3309                         stag_info.page_size = reg_wr(ib_wr)->mr->page_size;
3310                         stag_info.wr_id = ib_wr->wr_id;
3311                         stag_info.addr_type = IRDMA_ADDR_TYPE_VA_BASED;
3312                         stag_info.va = (void *)(uintptr_t)iwmr->ibmr.iova;
3313                         stag_info.total_len = iwmr->ibmr.length;
3314                         stag_info.reg_addr_pa = *palloc->level1.addr;
3315                         stag_info.first_pm_pbl_index = palloc->level1.idx;
3316                         stag_info.local_fence = ib_wr->send_flags & IB_SEND_FENCE;
3317                         if (iwmr->npages > IRDMA_MIN_PAGES_PER_FMR)
3318                                 stag_info.chunk_size = 1;
3319                         err = irdma_sc_mr_fast_register(&iwqp->sc_qp, &stag_info,
3320                                                         true);
3321                         break;
3322                 }
3323                 default:
3324                         err = -EINVAL;
3325                         ibdev_dbg(&iwqp->iwdev->ibdev,
3326                                   "VERBS: upost_send bad opcode = 0x%x\n",
3327                                   ib_wr->opcode);
3328                         break;
3329                 }
3330
3331                 if (err)
3332                         break;
3333                 ib_wr = ib_wr->next;
3334         }
3335
3336         if (!iwqp->flush_issued) {
3337                 if (iwqp->hw_iwarp_state <= IRDMA_QP_STATE_RTS)
3338                         irdma_uk_qp_post_wr(ukqp);
3339                 spin_unlock_irqrestore(&iwqp->lock, flags);
3340         } else {
3341                 spin_unlock_irqrestore(&iwqp->lock, flags);
3342                 mod_delayed_work(iwqp->iwdev->cleanup_wq, &iwqp->dwork_flush,
3343                                  msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS));
3344         }
3345         if (err)
3346                 *bad_wr = ib_wr;
3347
3348         return err;
3349 }
3350
3351 /**
3352  * irdma_post_recv - post receive wr for kernel application
3353  * @ibqp: ib qp pointer
3354  * @ib_wr: work request for receive
3355  * @bad_wr: bad wr caused an error
3356  */
3357 static int irdma_post_recv(struct ib_qp *ibqp,
3358                            const struct ib_recv_wr *ib_wr,
3359                            const struct ib_recv_wr **bad_wr)
3360 {
3361         struct irdma_qp *iwqp;
3362         struct irdma_qp_uk *ukqp;
3363         struct irdma_post_rq_info post_recv = {};
3364         unsigned long flags;
3365         int err = 0;
3366
3367         iwqp = to_iwqp(ibqp);
3368         ukqp = &iwqp->sc_qp.qp_uk;
3369
3370         spin_lock_irqsave(&iwqp->lock, flags);
3371         while (ib_wr) {
3372                 post_recv.num_sges = ib_wr->num_sge;
3373                 post_recv.wr_id = ib_wr->wr_id;
3374                 post_recv.sg_list = ib_wr->sg_list;
3375                 err = irdma_uk_post_receive(ukqp, &post_recv);
3376                 if (err) {
3377                         ibdev_dbg(&iwqp->iwdev->ibdev,
3378                                   "VERBS: post_recv err %d\n", err);
3379                         goto out;
3380                 }
3381
3382                 ib_wr = ib_wr->next;
3383         }
3384
3385 out:
3386         spin_unlock_irqrestore(&iwqp->lock, flags);
3387         if (iwqp->flush_issued)
3388                 mod_delayed_work(iwqp->iwdev->cleanup_wq, &iwqp->dwork_flush,
3389                                  msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS));
3390
3391         if (err)
3392                 *bad_wr = ib_wr;
3393
3394         return err;
3395 }
3396
3397 /**
3398  * irdma_flush_err_to_ib_wc_status - return change flush error code to IB status
3399  * @opcode: iwarp flush code
3400  */
3401 static enum ib_wc_status irdma_flush_err_to_ib_wc_status(enum irdma_flush_opcode opcode)
3402 {
3403         switch (opcode) {
3404         case FLUSH_PROT_ERR:
3405                 return IB_WC_LOC_PROT_ERR;
3406         case FLUSH_REM_ACCESS_ERR:
3407                 return IB_WC_REM_ACCESS_ERR;
3408         case FLUSH_LOC_QP_OP_ERR:
3409                 return IB_WC_LOC_QP_OP_ERR;
3410         case FLUSH_REM_OP_ERR:
3411                 return IB_WC_REM_OP_ERR;
3412         case FLUSH_LOC_LEN_ERR:
3413                 return IB_WC_LOC_LEN_ERR;
3414         case FLUSH_GENERAL_ERR:
3415                 return IB_WC_WR_FLUSH_ERR;
3416         case FLUSH_RETRY_EXC_ERR:
3417                 return IB_WC_RETRY_EXC_ERR;
3418         case FLUSH_MW_BIND_ERR:
3419                 return IB_WC_MW_BIND_ERR;
3420         case FLUSH_REM_INV_REQ_ERR:
3421                 return IB_WC_REM_INV_REQ_ERR;
3422         case FLUSH_FATAL_ERR:
3423         default:
3424                 return IB_WC_FATAL_ERR;
3425         }
3426 }
3427
3428 /**
3429  * irdma_process_cqe - process cqe info
3430  * @entry: processed cqe
3431  * @cq_poll_info: cqe info
3432  */
3433 static void irdma_process_cqe(struct ib_wc *entry,
3434                               struct irdma_cq_poll_info *cq_poll_info)
3435 {
3436         struct irdma_sc_qp *qp;
3437
3438         entry->wc_flags = 0;
3439         entry->pkey_index = 0;
3440         entry->wr_id = cq_poll_info->wr_id;
3441
3442         qp = cq_poll_info->qp_handle;
3443         entry->qp = qp->qp_uk.back_qp;
3444
3445         if (cq_poll_info->error) {
3446                 entry->status = (cq_poll_info->comp_status == IRDMA_COMPL_STATUS_FLUSHED) ?
3447                                 irdma_flush_err_to_ib_wc_status(cq_poll_info->minor_err) : IB_WC_GENERAL_ERR;
3448
3449                 entry->vendor_err = cq_poll_info->major_err << 16 |
3450                                     cq_poll_info->minor_err;
3451         } else {
3452                 entry->status = IB_WC_SUCCESS;
3453                 if (cq_poll_info->imm_valid) {
3454                         entry->ex.imm_data = htonl(cq_poll_info->imm_data);
3455                         entry->wc_flags |= IB_WC_WITH_IMM;
3456                 }
3457                 if (cq_poll_info->ud_smac_valid) {
3458                         ether_addr_copy(entry->smac, cq_poll_info->ud_smac);
3459                         entry->wc_flags |= IB_WC_WITH_SMAC;
3460                 }
3461
3462                 if (cq_poll_info->ud_vlan_valid) {
3463                         u16 vlan = cq_poll_info->ud_vlan & VLAN_VID_MASK;
3464
3465                         entry->sl = cq_poll_info->ud_vlan >> VLAN_PRIO_SHIFT;
3466                         if (vlan) {
3467                                 entry->vlan_id = vlan;
3468                                 entry->wc_flags |= IB_WC_WITH_VLAN;
3469                         }
3470                 } else {
3471                         entry->sl = 0;
3472                 }
3473         }
3474
3475         if (cq_poll_info->q_type == IRDMA_CQE_QTYPE_SQ) {
3476                 set_ib_wc_op_sq(cq_poll_info, entry);
3477         } else {
3478                 set_ib_wc_op_rq(cq_poll_info, entry,
3479                                 qp->qp_uk.qp_caps & IRDMA_SEND_WITH_IMM ?
3480                                 true : false);
3481                 if (qp->qp_uk.qp_type != IRDMA_QP_TYPE_ROCE_UD &&
3482                     cq_poll_info->stag_invalid_set) {
3483                         entry->ex.invalidate_rkey = cq_poll_info->inv_stag;
3484                         entry->wc_flags |= IB_WC_WITH_INVALIDATE;
3485                 }
3486         }
3487
3488         if (qp->qp_uk.qp_type == IRDMA_QP_TYPE_ROCE_UD) {
3489                 entry->src_qp = cq_poll_info->ud_src_qpn;
3490                 entry->slid = 0;
3491                 entry->wc_flags |=
3492                         (IB_WC_GRH | IB_WC_WITH_NETWORK_HDR_TYPE);
3493                 entry->network_hdr_type = cq_poll_info->ipv4 ?
3494                                                   RDMA_NETWORK_IPV4 :
3495                                                   RDMA_NETWORK_IPV6;
3496         } else {
3497                 entry->src_qp = cq_poll_info->qp_id;
3498         }
3499
3500         entry->byte_len = cq_poll_info->bytes_xfered;
3501 }
3502
3503 /**
3504  * irdma_poll_one - poll one entry of the CQ
3505  * @ukcq: ukcq to poll
3506  * @cur_cqe: current CQE info to be filled in
3507  * @entry: ibv_wc object to be filled for non-extended CQ or NULL for extended CQ
3508  *
3509  * Returns the internal irdma device error code or 0 on success
3510  */
3511 static inline int irdma_poll_one(struct irdma_cq_uk *ukcq,
3512                                  struct irdma_cq_poll_info *cur_cqe,
3513                                  struct ib_wc *entry)
3514 {
3515         int ret = irdma_uk_cq_poll_cmpl(ukcq, cur_cqe);
3516
3517         if (ret)
3518                 return ret;
3519
3520         irdma_process_cqe(entry, cur_cqe);
3521
3522         return 0;
3523 }
3524
3525 /**
3526  * __irdma_poll_cq - poll cq for completion (kernel apps)
3527  * @iwcq: cq to poll
3528  * @num_entries: number of entries to poll
3529  * @entry: wr of a completed entry
3530  */
3531 static int __irdma_poll_cq(struct irdma_cq *iwcq, int num_entries, struct ib_wc *entry)
3532 {
3533         struct list_head *tmp_node, *list_node;
3534         struct irdma_cq_buf *last_buf = NULL;
3535         struct irdma_cq_poll_info *cur_cqe = &iwcq->cur_cqe;
3536         struct irdma_cq_buf *cq_buf;
3537         int ret;
3538         struct irdma_device *iwdev;
3539         struct irdma_cq_uk *ukcq;
3540         bool cq_new_cqe = false;
3541         int resized_bufs = 0;
3542         int npolled = 0;
3543
3544         iwdev = to_iwdev(iwcq->ibcq.device);
3545         ukcq = &iwcq->sc_cq.cq_uk;
3546
3547         /* go through the list of previously resized CQ buffers */
3548         list_for_each_safe(list_node, tmp_node, &iwcq->resize_list) {
3549                 cq_buf = container_of(list_node, struct irdma_cq_buf, list);
3550                 while (npolled < num_entries) {
3551                         ret = irdma_poll_one(&cq_buf->cq_uk, cur_cqe, entry + npolled);
3552                         if (!ret) {
3553                                 ++npolled;
3554                                 cq_new_cqe = true;
3555                                 continue;
3556                         }
3557                         if (ret == -ENOENT)
3558                                 break;
3559                          /* QP using the CQ is destroyed. Skip reporting this CQE */
3560                         if (ret == -EFAULT) {
3561                                 cq_new_cqe = true;
3562                                 continue;
3563                         }
3564                         goto error;
3565                 }
3566
3567                 /* save the resized CQ buffer which received the last cqe */
3568                 if (cq_new_cqe)
3569                         last_buf = cq_buf;
3570                 cq_new_cqe = false;
3571         }
3572
3573         /* check the current CQ for new cqes */
3574         while (npolled < num_entries) {
3575                 ret = irdma_poll_one(ukcq, cur_cqe, entry + npolled);
3576                 if (ret == -ENOENT) {
3577                         ret = irdma_generated_cmpls(iwcq, cur_cqe);
3578                         if (!ret)
3579                                 irdma_process_cqe(entry + npolled, cur_cqe);
3580                 }
3581                 if (!ret) {
3582                         ++npolled;
3583                         cq_new_cqe = true;
3584                         continue;
3585                 }
3586
3587                 if (ret == -ENOENT)
3588                         break;
3589                 /* QP using the CQ is destroyed. Skip reporting this CQE */
3590                 if (ret == -EFAULT) {
3591                         cq_new_cqe = true;
3592                         continue;
3593                 }
3594                 goto error;
3595         }
3596
3597         if (cq_new_cqe)
3598                 /* all previous CQ resizes are complete */
3599                 resized_bufs = irdma_process_resize_list(iwcq, iwdev, NULL);
3600         else if (last_buf)
3601                 /* only CQ resizes up to the last_buf are complete */
3602                 resized_bufs = irdma_process_resize_list(iwcq, iwdev, last_buf);
3603         if (resized_bufs)
3604                 /* report to the HW the number of complete CQ resizes */
3605                 irdma_uk_cq_set_resized_cnt(ukcq, resized_bufs);
3606
3607         return npolled;
3608 error:
3609         ibdev_dbg(&iwdev->ibdev, "%s: Error polling CQ, irdma_err: %d\n",
3610                   __func__, ret);
3611
3612         return ret;
3613 }
3614
3615 /**
3616  * irdma_poll_cq - poll cq for completion (kernel apps)
3617  * @ibcq: cq to poll
3618  * @num_entries: number of entries to poll
3619  * @entry: wr of a completed entry
3620  */
3621 static int irdma_poll_cq(struct ib_cq *ibcq, int num_entries,
3622                          struct ib_wc *entry)
3623 {
3624         struct irdma_cq *iwcq;
3625         unsigned long flags;
3626         int ret;
3627
3628         iwcq = to_iwcq(ibcq);
3629
3630         spin_lock_irqsave(&iwcq->lock, flags);
3631         ret = __irdma_poll_cq(iwcq, num_entries, entry);
3632         spin_unlock_irqrestore(&iwcq->lock, flags);
3633
3634         return ret;
3635 }
3636
3637 /**
3638  * irdma_req_notify_cq - arm cq kernel application
3639  * @ibcq: cq to arm
3640  * @notify_flags: notofication flags
3641  */
3642 static int irdma_req_notify_cq(struct ib_cq *ibcq,
3643                                enum ib_cq_notify_flags notify_flags)
3644 {
3645         struct irdma_cq *iwcq;
3646         struct irdma_cq_uk *ukcq;
3647         unsigned long flags;
3648         enum irdma_cmpl_notify cq_notify;
3649         bool promo_event = false;
3650         int ret = 0;
3651
3652         cq_notify = notify_flags == IB_CQ_SOLICITED ?
3653                     IRDMA_CQ_COMPL_SOLICITED : IRDMA_CQ_COMPL_EVENT;
3654         iwcq = to_iwcq(ibcq);
3655         ukcq = &iwcq->sc_cq.cq_uk;
3656
3657         spin_lock_irqsave(&iwcq->lock, flags);
3658         /* Only promote to arm the CQ for any event if the last arm event was solicited. */
3659         if (iwcq->last_notify == IRDMA_CQ_COMPL_SOLICITED && notify_flags != IB_CQ_SOLICITED)
3660                 promo_event = true;
3661
3662         if (!atomic_cmpxchg(&iwcq->armed, 0, 1) || promo_event) {
3663                 iwcq->last_notify = cq_notify;
3664                 irdma_uk_cq_request_notification(ukcq, cq_notify);
3665         }
3666
3667         if ((notify_flags & IB_CQ_REPORT_MISSED_EVENTS) &&
3668             (!irdma_cq_empty(iwcq) || !list_empty(&iwcq->cmpl_generated)))
3669                 ret = 1;
3670         spin_unlock_irqrestore(&iwcq->lock, flags);
3671
3672         return ret;
3673 }
3674
3675 static int irdma_roce_port_immutable(struct ib_device *ibdev, u32 port_num,
3676                                      struct ib_port_immutable *immutable)
3677 {
3678         struct ib_port_attr attr;
3679         int err;
3680
3681         immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP;
3682         err = ib_query_port(ibdev, port_num, &attr);
3683         if (err)
3684                 return err;
3685
3686         immutable->max_mad_size = IB_MGMT_MAD_SIZE;
3687         immutable->pkey_tbl_len = attr.pkey_tbl_len;
3688         immutable->gid_tbl_len = attr.gid_tbl_len;
3689
3690         return 0;
3691 }
3692
3693 static int irdma_iw_port_immutable(struct ib_device *ibdev, u32 port_num,
3694                                    struct ib_port_immutable *immutable)
3695 {
3696         struct ib_port_attr attr;
3697         int err;
3698
3699         immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;
3700         err = ib_query_port(ibdev, port_num, &attr);
3701         if (err)
3702                 return err;
3703         immutable->gid_tbl_len = attr.gid_tbl_len;
3704
3705         return 0;
3706 }
3707
3708 static const struct rdma_stat_desc irdma_hw_stat_names[] = {
3709         /* gen1 - 32-bit */
3710         [IRDMA_HW_STAT_INDEX_IP4RXDISCARD].name         = "ip4InDiscards",
3711         [IRDMA_HW_STAT_INDEX_IP4RXTRUNC].name           = "ip4InTruncatedPkts",
3712         [IRDMA_HW_STAT_INDEX_IP4TXNOROUTE].name         = "ip4OutNoRoutes",
3713         [IRDMA_HW_STAT_INDEX_IP6RXDISCARD].name         = "ip6InDiscards",
3714         [IRDMA_HW_STAT_INDEX_IP6RXTRUNC].name           = "ip6InTruncatedPkts",
3715         [IRDMA_HW_STAT_INDEX_IP6TXNOROUTE].name         = "ip6OutNoRoutes",
3716         [IRDMA_HW_STAT_INDEX_TCPRTXSEG].name            = "tcpRetransSegs",
3717         [IRDMA_HW_STAT_INDEX_TCPRXOPTERR].name          = "tcpInOptErrors",
3718         [IRDMA_HW_STAT_INDEX_TCPRXPROTOERR].name        = "tcpInProtoErrors",
3719         [IRDMA_HW_STAT_INDEX_RXVLANERR].name            = "rxVlanErrors",
3720         /* gen1 - 64-bit */
3721         [IRDMA_HW_STAT_INDEX_IP4RXOCTS].name            = "ip4InOctets",
3722         [IRDMA_HW_STAT_INDEX_IP4RXPKTS].name            = "ip4InPkts",
3723         [IRDMA_HW_STAT_INDEX_IP4RXFRAGS].name           = "ip4InReasmRqd",
3724         [IRDMA_HW_STAT_INDEX_IP4RXMCPKTS].name          = "ip4InMcastPkts",
3725         [IRDMA_HW_STAT_INDEX_IP4TXOCTS].name            = "ip4OutOctets",
3726         [IRDMA_HW_STAT_INDEX_IP4TXPKTS].name            = "ip4OutPkts",
3727         [IRDMA_HW_STAT_INDEX_IP4TXFRAGS].name           = "ip4OutSegRqd",
3728         [IRDMA_HW_STAT_INDEX_IP4TXMCPKTS].name          = "ip4OutMcastPkts",
3729         [IRDMA_HW_STAT_INDEX_IP6RXOCTS].name            = "ip6InOctets",
3730         [IRDMA_HW_STAT_INDEX_IP6RXPKTS].name            = "ip6InPkts",
3731         [IRDMA_HW_STAT_INDEX_IP6RXFRAGS].name           = "ip6InReasmRqd",
3732         [IRDMA_HW_STAT_INDEX_IP6RXMCPKTS].name          = "ip6InMcastPkts",
3733         [IRDMA_HW_STAT_INDEX_IP6TXOCTS].name            = "ip6OutOctets",
3734         [IRDMA_HW_STAT_INDEX_IP6TXPKTS].name            = "ip6OutPkts",
3735         [IRDMA_HW_STAT_INDEX_IP6TXFRAGS].name           = "ip6OutSegRqd",
3736         [IRDMA_HW_STAT_INDEX_IP6TXMCPKTS].name          = "ip6OutMcastPkts",
3737         [IRDMA_HW_STAT_INDEX_TCPRXSEGS].name            = "tcpInSegs",
3738         [IRDMA_HW_STAT_INDEX_TCPTXSEG].name             = "tcpOutSegs",
3739         [IRDMA_HW_STAT_INDEX_RDMARXRDS].name            = "iwInRdmaReads",
3740         [IRDMA_HW_STAT_INDEX_RDMARXSNDS].name           = "iwInRdmaSends",
3741         [IRDMA_HW_STAT_INDEX_RDMARXWRS].name            = "iwInRdmaWrites",
3742         [IRDMA_HW_STAT_INDEX_RDMATXRDS].name            = "iwOutRdmaReads",
3743         [IRDMA_HW_STAT_INDEX_RDMATXSNDS].name           = "iwOutRdmaSends",
3744         [IRDMA_HW_STAT_INDEX_RDMATXWRS].name            = "iwOutRdmaWrites",
3745         [IRDMA_HW_STAT_INDEX_RDMAVBND].name             = "iwRdmaBnd",
3746         [IRDMA_HW_STAT_INDEX_RDMAVINV].name             = "iwRdmaInv",
3747
3748         /* gen2 - 32-bit */
3749         [IRDMA_HW_STAT_INDEX_RXRPCNPHANDLED].name       = "cnpHandled",
3750         [IRDMA_HW_STAT_INDEX_RXRPCNPIGNORED].name       = "cnpIgnored",
3751         [IRDMA_HW_STAT_INDEX_TXNPCNPSENT].name          = "cnpSent",
3752         /* gen2 - 64-bit */
3753         [IRDMA_HW_STAT_INDEX_IP4RXMCOCTS].name          = "ip4InMcastOctets",
3754         [IRDMA_HW_STAT_INDEX_IP4TXMCOCTS].name          = "ip4OutMcastOctets",
3755         [IRDMA_HW_STAT_INDEX_IP6RXMCOCTS].name          = "ip6InMcastOctets",
3756         [IRDMA_HW_STAT_INDEX_IP6TXMCOCTS].name          = "ip6OutMcastOctets",
3757         [IRDMA_HW_STAT_INDEX_UDPRXPKTS].name            = "RxUDP",
3758         [IRDMA_HW_STAT_INDEX_UDPTXPKTS].name            = "TxUDP",
3759         [IRDMA_HW_STAT_INDEX_RXNPECNMARKEDPKTS].name    = "RxECNMrkd",
3760
3761 };
3762
3763 static void irdma_get_dev_fw_str(struct ib_device *dev, char *str)
3764 {
3765         struct irdma_device *iwdev = to_iwdev(dev);
3766
3767         snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u",
3768                  irdma_fw_major_ver(&iwdev->rf->sc_dev),
3769                  irdma_fw_minor_ver(&iwdev->rf->sc_dev));
3770 }
3771
3772 /**
3773  * irdma_alloc_hw_port_stats - Allocate a hw stats structure
3774  * @ibdev: device pointer from stack
3775  * @port_num: port number
3776  */
3777 static struct rdma_hw_stats *irdma_alloc_hw_port_stats(struct ib_device *ibdev,
3778                                                        u32 port_num)
3779 {
3780         struct irdma_device *iwdev = to_iwdev(ibdev);
3781         struct irdma_sc_dev *dev = &iwdev->rf->sc_dev;
3782
3783         int num_counters = dev->hw_attrs.max_stat_idx;
3784         unsigned long lifespan = RDMA_HW_STATS_DEFAULT_LIFESPAN;
3785
3786         return rdma_alloc_hw_stats_struct(irdma_hw_stat_names, num_counters,
3787                                           lifespan);
3788 }
3789
3790 /**
3791  * irdma_get_hw_stats - Populates the rdma_hw_stats structure
3792  * @ibdev: device pointer from stack
3793  * @stats: stats pointer from stack
3794  * @port_num: port number
3795  * @index: which hw counter the stack is requesting we update
3796  */
3797 static int irdma_get_hw_stats(struct ib_device *ibdev,
3798                               struct rdma_hw_stats *stats, u32 port_num,
3799                               int index)
3800 {
3801         struct irdma_device *iwdev = to_iwdev(ibdev);
3802         struct irdma_dev_hw_stats *hw_stats = &iwdev->vsi.pestat->hw_stats;
3803
3804         if (iwdev->rf->rdma_ver >= IRDMA_GEN_2)
3805                 irdma_cqp_gather_stats_cmd(&iwdev->rf->sc_dev, iwdev->vsi.pestat, true);
3806         else
3807                 irdma_cqp_gather_stats_gen1(&iwdev->rf->sc_dev, iwdev->vsi.pestat);
3808
3809         memcpy(&stats->value[0], hw_stats, sizeof(u64) * stats->num_counters);
3810
3811         return stats->num_counters;
3812 }
3813
3814 /**
3815  * irdma_query_gid - Query port GID
3816  * @ibdev: device pointer from stack
3817  * @port: port number
3818  * @index: Entry index
3819  * @gid: Global ID
3820  */
3821 static int irdma_query_gid(struct ib_device *ibdev, u32 port, int index,
3822                            union ib_gid *gid)
3823 {
3824         struct irdma_device *iwdev = to_iwdev(ibdev);
3825
3826         memset(gid->raw, 0, sizeof(gid->raw));
3827         ether_addr_copy(gid->raw, iwdev->netdev->dev_addr);
3828
3829         return 0;
3830 }
3831
3832 /**
3833  * mcast_list_add -  Add a new mcast item to list
3834  * @rf: RDMA PCI function
3835  * @new_elem: pointer to element to add
3836  */
3837 static void mcast_list_add(struct irdma_pci_f *rf,
3838                            struct mc_table_list *new_elem)
3839 {
3840         list_add(&new_elem->list, &rf->mc_qht_list.list);
3841 }
3842
3843 /**
3844  * mcast_list_del - Remove an mcast item from list
3845  * @mc_qht_elem: pointer to mcast table list element
3846  */
3847 static void mcast_list_del(struct mc_table_list *mc_qht_elem)
3848 {
3849         if (mc_qht_elem)
3850                 list_del(&mc_qht_elem->list);
3851 }
3852
3853 /**
3854  * mcast_list_lookup_ip - Search mcast list for address
3855  * @rf: RDMA PCI function
3856  * @ip_mcast: pointer to mcast IP address
3857  */
3858 static struct mc_table_list *mcast_list_lookup_ip(struct irdma_pci_f *rf,
3859                                                   u32 *ip_mcast)
3860 {
3861         struct mc_table_list *mc_qht_el;
3862         struct list_head *pos, *q;
3863
3864         list_for_each_safe (pos, q, &rf->mc_qht_list.list) {
3865                 mc_qht_el = list_entry(pos, struct mc_table_list, list);
3866                 if (!memcmp(mc_qht_el->mc_info.dest_ip, ip_mcast,
3867                             sizeof(mc_qht_el->mc_info.dest_ip)))
3868                         return mc_qht_el;
3869         }
3870
3871         return NULL;
3872 }
3873
3874 /**
3875  * irdma_mcast_cqp_op - perform a mcast cqp operation
3876  * @iwdev: irdma device
3877  * @mc_grp_ctx: mcast group info
3878  * @op: operation
3879  *
3880  * returns error status
3881  */
3882 static int irdma_mcast_cqp_op(struct irdma_device *iwdev,
3883                               struct irdma_mcast_grp_info *mc_grp_ctx, u8 op)
3884 {
3885         struct cqp_cmds_info *cqp_info;
3886         struct irdma_cqp_request *cqp_request;
3887         int status;
3888
3889         cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true);
3890         if (!cqp_request)
3891                 return -ENOMEM;
3892
3893         cqp_request->info.in.u.mc_create.info = *mc_grp_ctx;
3894         cqp_info = &cqp_request->info;
3895         cqp_info->cqp_cmd = op;
3896         cqp_info->post_sq = 1;
3897         cqp_info->in.u.mc_create.scratch = (uintptr_t)cqp_request;
3898         cqp_info->in.u.mc_create.cqp = &iwdev->rf->cqp.sc_cqp;
3899         status = irdma_handle_cqp_op(iwdev->rf, cqp_request);
3900         irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request);
3901
3902         return status;
3903 }
3904
3905 /**
3906  * irdma_mcast_mac - Get the multicast MAC for an IP address
3907  * @ip_addr: IPv4 or IPv6 address
3908  * @mac: pointer to result MAC address
3909  * @ipv4: flag indicating IPv4 or IPv6
3910  *
3911  */
3912 void irdma_mcast_mac(u32 *ip_addr, u8 *mac, bool ipv4)
3913 {
3914         u8 *ip = (u8 *)ip_addr;
3915
3916         if (ipv4) {
3917                 unsigned char mac4[ETH_ALEN] = {0x01, 0x00, 0x5E, 0x00,
3918                                                 0x00, 0x00};
3919
3920                 mac4[3] = ip[2] & 0x7F;
3921                 mac4[4] = ip[1];
3922                 mac4[5] = ip[0];
3923                 ether_addr_copy(mac, mac4);
3924         } else {
3925                 unsigned char mac6[ETH_ALEN] = {0x33, 0x33, 0x00, 0x00,
3926                                                 0x00, 0x00};
3927
3928                 mac6[2] = ip[3];
3929                 mac6[3] = ip[2];
3930                 mac6[4] = ip[1];
3931                 mac6[5] = ip[0];
3932                 ether_addr_copy(mac, mac6);
3933         }
3934 }
3935
3936 /**
3937  * irdma_attach_mcast - attach a qp to a multicast group
3938  * @ibqp: ptr to qp
3939  * @ibgid: pointer to global ID
3940  * @lid: local ID
3941  *
3942  * returns error status
3943  */
3944 static int irdma_attach_mcast(struct ib_qp *ibqp, union ib_gid *ibgid, u16 lid)
3945 {
3946         struct irdma_qp *iwqp = to_iwqp(ibqp);
3947         struct irdma_device *iwdev = iwqp->iwdev;
3948         struct irdma_pci_f *rf = iwdev->rf;
3949         struct mc_table_list *mc_qht_elem;
3950         struct irdma_mcast_grp_ctx_entry_info mcg_info = {};
3951         unsigned long flags;
3952         u32 ip_addr[4] = {};
3953         u32 mgn;
3954         u32 no_mgs;
3955         int ret = 0;
3956         bool ipv4;
3957         u16 vlan_id;
3958         union irdma_sockaddr sgid_addr;
3959         unsigned char dmac[ETH_ALEN];
3960
3961         rdma_gid2ip((struct sockaddr *)&sgid_addr, ibgid);
3962
3963         if (!ipv6_addr_v4mapped((struct in6_addr *)ibgid)) {
3964                 irdma_copy_ip_ntohl(ip_addr,
3965                                     sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32);
3966                 irdma_netdev_vlan_ipv6(ip_addr, &vlan_id, NULL);
3967                 ipv4 = false;
3968                 ibdev_dbg(&iwdev->ibdev,
3969                           "VERBS: qp_id=%d, IP6address=%pI6\n", ibqp->qp_num,
3970                           ip_addr);
3971                 irdma_mcast_mac(ip_addr, dmac, false);
3972         } else {
3973                 ip_addr[0] = ntohl(sgid_addr.saddr_in.sin_addr.s_addr);
3974                 ipv4 = true;
3975                 vlan_id = irdma_get_vlan_ipv4(ip_addr);
3976                 irdma_mcast_mac(ip_addr, dmac, true);
3977                 ibdev_dbg(&iwdev->ibdev,
3978                           "VERBS: qp_id=%d, IP4address=%pI4, MAC=%pM\n",
3979                           ibqp->qp_num, ip_addr, dmac);
3980         }
3981
3982         spin_lock_irqsave(&rf->qh_list_lock, flags);
3983         mc_qht_elem = mcast_list_lookup_ip(rf, ip_addr);
3984         if (!mc_qht_elem) {
3985                 struct irdma_dma_mem *dma_mem_mc;
3986
3987                 spin_unlock_irqrestore(&rf->qh_list_lock, flags);
3988                 mc_qht_elem = kzalloc(sizeof(*mc_qht_elem), GFP_KERNEL);
3989                 if (!mc_qht_elem)
3990                         return -ENOMEM;
3991
3992                 mc_qht_elem->mc_info.ipv4_valid = ipv4;
3993                 memcpy(mc_qht_elem->mc_info.dest_ip, ip_addr,
3994                        sizeof(mc_qht_elem->mc_info.dest_ip));
3995                 ret = irdma_alloc_rsrc(rf, rf->allocated_mcgs, rf->max_mcg,
3996                                        &mgn, &rf->next_mcg);
3997                 if (ret) {
3998                         kfree(mc_qht_elem);
3999                         return -ENOMEM;
4000                 }
4001
4002                 mc_qht_elem->mc_info.mgn = mgn;
4003                 dma_mem_mc = &mc_qht_elem->mc_grp_ctx.dma_mem_mc;
4004                 dma_mem_mc->size = ALIGN(sizeof(u64) * IRDMA_MAX_MGS_PER_CTX,
4005                                          IRDMA_HW_PAGE_SIZE);
4006                 dma_mem_mc->va = dma_alloc_coherent(rf->hw.device,
4007                                                     dma_mem_mc->size,
4008                                                     &dma_mem_mc->pa,
4009                                                     GFP_KERNEL);
4010                 if (!dma_mem_mc->va) {
4011                         irdma_free_rsrc(rf, rf->allocated_mcgs, mgn);
4012                         kfree(mc_qht_elem);
4013                         return -ENOMEM;
4014                 }
4015
4016                 mc_qht_elem->mc_grp_ctx.mg_id = (u16)mgn;
4017                 memcpy(mc_qht_elem->mc_grp_ctx.dest_ip_addr, ip_addr,
4018                        sizeof(mc_qht_elem->mc_grp_ctx.dest_ip_addr));
4019                 mc_qht_elem->mc_grp_ctx.ipv4_valid = ipv4;
4020                 mc_qht_elem->mc_grp_ctx.vlan_id = vlan_id;
4021                 if (vlan_id < VLAN_N_VID)
4022                         mc_qht_elem->mc_grp_ctx.vlan_valid = true;
4023                 mc_qht_elem->mc_grp_ctx.hmc_fcn_id = iwdev->rf->sc_dev.hmc_fn_id;
4024                 mc_qht_elem->mc_grp_ctx.qs_handle =
4025                         iwqp->sc_qp.vsi->qos[iwqp->sc_qp.user_pri].qs_handle;
4026                 ether_addr_copy(mc_qht_elem->mc_grp_ctx.dest_mac_addr, dmac);
4027
4028                 spin_lock_irqsave(&rf->qh_list_lock, flags);
4029                 mcast_list_add(rf, mc_qht_elem);
4030         } else {
4031                 if (mc_qht_elem->mc_grp_ctx.no_of_mgs ==
4032                     IRDMA_MAX_MGS_PER_CTX) {
4033                         spin_unlock_irqrestore(&rf->qh_list_lock, flags);
4034                         return -ENOMEM;
4035                 }
4036         }
4037
4038         mcg_info.qp_id = iwqp->ibqp.qp_num;
4039         no_mgs = mc_qht_elem->mc_grp_ctx.no_of_mgs;
4040         irdma_sc_add_mcast_grp(&mc_qht_elem->mc_grp_ctx, &mcg_info);
4041         spin_unlock_irqrestore(&rf->qh_list_lock, flags);
4042
4043         /* Only if there is a change do we need to modify or create */
4044         if (!no_mgs) {
4045                 ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx,
4046                                          IRDMA_OP_MC_CREATE);
4047         } else if (no_mgs != mc_qht_elem->mc_grp_ctx.no_of_mgs) {
4048                 ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx,
4049                                          IRDMA_OP_MC_MODIFY);
4050         } else {
4051                 return 0;
4052         }
4053
4054         if (ret)
4055                 goto error;
4056
4057         return 0;
4058
4059 error:
4060         irdma_sc_del_mcast_grp(&mc_qht_elem->mc_grp_ctx, &mcg_info);
4061         if (!mc_qht_elem->mc_grp_ctx.no_of_mgs) {
4062                 mcast_list_del(mc_qht_elem);
4063                 dma_free_coherent(rf->hw.device,
4064                                   mc_qht_elem->mc_grp_ctx.dma_mem_mc.size,
4065                                   mc_qht_elem->mc_grp_ctx.dma_mem_mc.va,
4066                                   mc_qht_elem->mc_grp_ctx.dma_mem_mc.pa);
4067                 mc_qht_elem->mc_grp_ctx.dma_mem_mc.va = NULL;
4068                 irdma_free_rsrc(rf, rf->allocated_mcgs,
4069                                 mc_qht_elem->mc_grp_ctx.mg_id);
4070                 kfree(mc_qht_elem);
4071         }
4072
4073         return ret;
4074 }
4075
4076 /**
4077  * irdma_detach_mcast - detach a qp from a multicast group
4078  * @ibqp: ptr to qp
4079  * @ibgid: pointer to global ID
4080  * @lid: local ID
4081  *
4082  * returns error status
4083  */
4084 static int irdma_detach_mcast(struct ib_qp *ibqp, union ib_gid *ibgid, u16 lid)
4085 {
4086         struct irdma_qp *iwqp = to_iwqp(ibqp);
4087         struct irdma_device *iwdev = iwqp->iwdev;
4088         struct irdma_pci_f *rf = iwdev->rf;
4089         u32 ip_addr[4] = {};
4090         struct mc_table_list *mc_qht_elem;
4091         struct irdma_mcast_grp_ctx_entry_info mcg_info = {};
4092         int ret;
4093         unsigned long flags;
4094         union irdma_sockaddr sgid_addr;
4095
4096         rdma_gid2ip((struct sockaddr *)&sgid_addr, ibgid);
4097         if (!ipv6_addr_v4mapped((struct in6_addr *)ibgid))
4098                 irdma_copy_ip_ntohl(ip_addr,
4099                                     sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32);
4100         else
4101                 ip_addr[0] = ntohl(sgid_addr.saddr_in.sin_addr.s_addr);
4102
4103         spin_lock_irqsave(&rf->qh_list_lock, flags);
4104         mc_qht_elem = mcast_list_lookup_ip(rf, ip_addr);
4105         if (!mc_qht_elem) {
4106                 spin_unlock_irqrestore(&rf->qh_list_lock, flags);
4107                 ibdev_dbg(&iwdev->ibdev,
4108                           "VERBS: address not found MCG\n");
4109                 return 0;
4110         }
4111
4112         mcg_info.qp_id = iwqp->ibqp.qp_num;
4113         irdma_sc_del_mcast_grp(&mc_qht_elem->mc_grp_ctx, &mcg_info);
4114         if (!mc_qht_elem->mc_grp_ctx.no_of_mgs) {
4115                 mcast_list_del(mc_qht_elem);
4116                 spin_unlock_irqrestore(&rf->qh_list_lock, flags);
4117                 ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx,
4118                                          IRDMA_OP_MC_DESTROY);
4119                 if (ret) {
4120                         ibdev_dbg(&iwdev->ibdev,
4121                                   "VERBS: failed MC_DESTROY MCG\n");
4122                         spin_lock_irqsave(&rf->qh_list_lock, flags);
4123                         mcast_list_add(rf, mc_qht_elem);
4124                         spin_unlock_irqrestore(&rf->qh_list_lock, flags);
4125                         return -EAGAIN;
4126                 }
4127
4128                 dma_free_coherent(rf->hw.device,
4129                                   mc_qht_elem->mc_grp_ctx.dma_mem_mc.size,
4130                                   mc_qht_elem->mc_grp_ctx.dma_mem_mc.va,
4131                                   mc_qht_elem->mc_grp_ctx.dma_mem_mc.pa);
4132                 mc_qht_elem->mc_grp_ctx.dma_mem_mc.va = NULL;
4133                 irdma_free_rsrc(rf, rf->allocated_mcgs,
4134                                 mc_qht_elem->mc_grp_ctx.mg_id);
4135                 kfree(mc_qht_elem);
4136         } else {
4137                 spin_unlock_irqrestore(&rf->qh_list_lock, flags);
4138                 ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx,
4139                                          IRDMA_OP_MC_MODIFY);
4140                 if (ret) {
4141                         ibdev_dbg(&iwdev->ibdev,
4142                                   "VERBS: failed Modify MCG\n");
4143                         return ret;
4144                 }
4145         }
4146
4147         return 0;
4148 }
4149
4150 static int irdma_create_hw_ah(struct irdma_device *iwdev, struct irdma_ah *ah, bool sleep)
4151 {
4152         struct irdma_pci_f *rf = iwdev->rf;
4153         int err;
4154
4155         err = irdma_alloc_rsrc(rf, rf->allocated_ahs, rf->max_ah, &ah->sc_ah.ah_info.ah_idx,
4156                                &rf->next_ah);
4157         if (err)
4158                 return err;
4159
4160         err = irdma_ah_cqp_op(rf, &ah->sc_ah, IRDMA_OP_AH_CREATE, sleep,
4161                               irdma_gsi_ud_qp_ah_cb, &ah->sc_ah);
4162
4163         if (err) {
4164                 ibdev_dbg(&iwdev->ibdev, "VERBS: CQP-OP Create AH fail");
4165                 goto err_ah_create;
4166         }
4167
4168         if (!sleep) {
4169                 int cnt = CQP_COMPL_WAIT_TIME_MS * CQP_TIMEOUT_THRESHOLD;
4170
4171                 do {
4172                         irdma_cqp_ce_handler(rf, &rf->ccq.sc_cq);
4173                         mdelay(1);
4174                 } while (!ah->sc_ah.ah_info.ah_valid && --cnt);
4175
4176                 if (!cnt) {
4177                         ibdev_dbg(&iwdev->ibdev, "VERBS: CQP create AH timed out");
4178                         err = -ETIMEDOUT;
4179                         goto err_ah_create;
4180                 }
4181         }
4182         return 0;
4183
4184 err_ah_create:
4185         irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_ahs, ah->sc_ah.ah_info.ah_idx);
4186
4187         return err;
4188 }
4189
4190 static int irdma_setup_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *attr)
4191 {
4192         struct irdma_pd *pd = to_iwpd(ibah->pd);
4193         struct irdma_ah *ah = container_of(ibah, struct irdma_ah, ibah);
4194         struct rdma_ah_attr *ah_attr = attr->ah_attr;
4195         const struct ib_gid_attr *sgid_attr;
4196         struct irdma_device *iwdev = to_iwdev(ibah->pd->device);
4197         struct irdma_pci_f *rf = iwdev->rf;
4198         struct irdma_sc_ah *sc_ah;
4199         struct irdma_ah_info *ah_info;
4200         union irdma_sockaddr sgid_addr, dgid_addr;
4201         int err;
4202         u8 dmac[ETH_ALEN];
4203
4204         ah->pd = pd;
4205         sc_ah = &ah->sc_ah;
4206         sc_ah->ah_info.vsi = &iwdev->vsi;
4207         irdma_sc_init_ah(&rf->sc_dev, sc_ah);
4208         ah->sgid_index = ah_attr->grh.sgid_index;
4209         sgid_attr = ah_attr->grh.sgid_attr;
4210         memcpy(&ah->dgid, &ah_attr->grh.dgid, sizeof(ah->dgid));
4211         rdma_gid2ip((struct sockaddr *)&sgid_addr, &sgid_attr->gid);
4212         rdma_gid2ip((struct sockaddr *)&dgid_addr, &ah_attr->grh.dgid);
4213         ah->av.attrs = *ah_attr;
4214         ah->av.net_type = rdma_gid_attr_network_type(sgid_attr);
4215         ah_info = &sc_ah->ah_info;
4216         ah_info->pd_idx = pd->sc_pd.pd_id;
4217         if (ah_attr->ah_flags & IB_AH_GRH) {
4218                 ah_info->flow_label = ah_attr->grh.flow_label;
4219                 ah_info->hop_ttl = ah_attr->grh.hop_limit;
4220                 ah_info->tc_tos = ah_attr->grh.traffic_class;
4221         }
4222
4223         ether_addr_copy(dmac, ah_attr->roce.dmac);
4224         if (ah->av.net_type == RDMA_NETWORK_IPV4) {
4225                 ah_info->ipv4_valid = true;
4226                 ah_info->dest_ip_addr[0] =
4227                         ntohl(dgid_addr.saddr_in.sin_addr.s_addr);
4228                 ah_info->src_ip_addr[0] =
4229                         ntohl(sgid_addr.saddr_in.sin_addr.s_addr);
4230                 ah_info->do_lpbk = irdma_ipv4_is_lpb(ah_info->src_ip_addr[0],
4231                                                      ah_info->dest_ip_addr[0]);
4232                 if (ipv4_is_multicast(dgid_addr.saddr_in.sin_addr.s_addr)) {
4233                         ah_info->do_lpbk = true;
4234                         irdma_mcast_mac(ah_info->dest_ip_addr, dmac, true);
4235                 }
4236         } else {
4237                 irdma_copy_ip_ntohl(ah_info->dest_ip_addr,
4238                                     dgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32);
4239                 irdma_copy_ip_ntohl(ah_info->src_ip_addr,
4240                                     sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32);
4241                 ah_info->do_lpbk = irdma_ipv6_is_lpb(ah_info->src_ip_addr,
4242                                                      ah_info->dest_ip_addr);
4243                 if (rdma_is_multicast_addr(&dgid_addr.saddr_in6.sin6_addr)) {
4244                         ah_info->do_lpbk = true;
4245                         irdma_mcast_mac(ah_info->dest_ip_addr, dmac, false);
4246                 }
4247         }
4248
4249         err = rdma_read_gid_l2_fields(sgid_attr, &ah_info->vlan_tag,
4250                                       ah_info->mac_addr);
4251         if (err)
4252                 return err;
4253
4254         ah_info->dst_arpindex = irdma_add_arp(iwdev->rf, ah_info->dest_ip_addr,
4255                                               ah_info->ipv4_valid, dmac);
4256
4257         if (ah_info->dst_arpindex == -1)
4258                 return -EINVAL;
4259
4260         if (ah_info->vlan_tag >= VLAN_N_VID && iwdev->dcb_vlan_mode)
4261                 ah_info->vlan_tag = 0;
4262
4263         if (ah_info->vlan_tag < VLAN_N_VID) {
4264                 ah_info->insert_vlan_tag = true;
4265                 ah_info->vlan_tag |=
4266                         rt_tos2priority(ah_info->tc_tos) << VLAN_PRIO_SHIFT;
4267         }
4268
4269         return 0;
4270 }
4271
4272 /**
4273  * irdma_ah_exists - Check for existing identical AH
4274  * @iwdev: irdma device
4275  * @new_ah: AH to check for
4276  *
4277  * returns true if AH is found, false if not found.
4278  */
4279 static bool irdma_ah_exists(struct irdma_device *iwdev,
4280                             struct irdma_ah *new_ah)
4281 {
4282         struct irdma_ah *ah;
4283         u32 key = new_ah->sc_ah.ah_info.dest_ip_addr[0] ^
4284                   new_ah->sc_ah.ah_info.dest_ip_addr[1] ^
4285                   new_ah->sc_ah.ah_info.dest_ip_addr[2] ^
4286                   new_ah->sc_ah.ah_info.dest_ip_addr[3];
4287
4288         hash_for_each_possible(iwdev->ah_hash_tbl, ah, list, key) {
4289                 /* Set ah_valid and ah_id the same so memcmp can work */
4290                 new_ah->sc_ah.ah_info.ah_idx = ah->sc_ah.ah_info.ah_idx;
4291                 new_ah->sc_ah.ah_info.ah_valid = ah->sc_ah.ah_info.ah_valid;
4292                 if (!memcmp(&ah->sc_ah.ah_info, &new_ah->sc_ah.ah_info,
4293                             sizeof(ah->sc_ah.ah_info))) {
4294                         refcount_inc(&ah->refcnt);
4295                         new_ah->parent_ah = ah;
4296                         return true;
4297                 }
4298         }
4299
4300         return false;
4301 }
4302
4303 /**
4304  * irdma_destroy_ah - Destroy address handle
4305  * @ibah: pointer to address handle
4306  * @ah_flags: flags for sleepable
4307  */
4308 static int irdma_destroy_ah(struct ib_ah *ibah, u32 ah_flags)
4309 {
4310         struct irdma_device *iwdev = to_iwdev(ibah->device);
4311         struct irdma_ah *ah = to_iwah(ibah);
4312
4313         if ((ah_flags & RDMA_DESTROY_AH_SLEEPABLE) && ah->parent_ah) {
4314                 mutex_lock(&iwdev->ah_tbl_lock);
4315                 if (!refcount_dec_and_test(&ah->parent_ah->refcnt)) {
4316                         mutex_unlock(&iwdev->ah_tbl_lock);
4317                         return 0;
4318                 }
4319                 hash_del(&ah->parent_ah->list);
4320                 kfree(ah->parent_ah);
4321                 mutex_unlock(&iwdev->ah_tbl_lock);
4322         }
4323
4324         irdma_ah_cqp_op(iwdev->rf, &ah->sc_ah, IRDMA_OP_AH_DESTROY,
4325                         false, NULL, ah);
4326
4327         irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_ahs,
4328                         ah->sc_ah.ah_info.ah_idx);
4329
4330         return 0;
4331 }
4332
4333 /**
4334  * irdma_create_user_ah - create user address handle
4335  * @ibah: address handle
4336  * @attr: address handle attributes
4337  * @udata: User data
4338  *
4339  * returns 0 on success, error otherwise
4340  */
4341 static int irdma_create_user_ah(struct ib_ah *ibah,
4342                                 struct rdma_ah_init_attr *attr,
4343                                 struct ib_udata *udata)
4344 {
4345 #define IRDMA_CREATE_AH_MIN_RESP_LEN offsetofend(struct irdma_create_ah_resp, rsvd)
4346         struct irdma_ah *ah = container_of(ibah, struct irdma_ah, ibah);
4347         struct irdma_device *iwdev = to_iwdev(ibah->pd->device);
4348         struct irdma_create_ah_resp uresp;
4349         struct irdma_ah *parent_ah;
4350         int err;
4351
4352         if (udata && udata->outlen < IRDMA_CREATE_AH_MIN_RESP_LEN)
4353                 return -EINVAL;
4354
4355         err = irdma_setup_ah(ibah, attr);
4356         if (err)
4357                 return err;
4358         mutex_lock(&iwdev->ah_tbl_lock);
4359         if (!irdma_ah_exists(iwdev, ah)) {
4360                 err = irdma_create_hw_ah(iwdev, ah, true);
4361                 if (err) {
4362                         mutex_unlock(&iwdev->ah_tbl_lock);
4363                         return err;
4364                 }
4365                 /* Add new AH to list */
4366                 parent_ah = kmemdup(ah, sizeof(*ah), GFP_KERNEL);
4367                 if (parent_ah) {
4368                         u32 key = parent_ah->sc_ah.ah_info.dest_ip_addr[0] ^
4369                                   parent_ah->sc_ah.ah_info.dest_ip_addr[1] ^
4370                                   parent_ah->sc_ah.ah_info.dest_ip_addr[2] ^
4371                                   parent_ah->sc_ah.ah_info.dest_ip_addr[3];
4372
4373                         ah->parent_ah = parent_ah;
4374                         hash_add(iwdev->ah_hash_tbl, &parent_ah->list, key);
4375                         refcount_set(&parent_ah->refcnt, 1);
4376                 }
4377         }
4378         mutex_unlock(&iwdev->ah_tbl_lock);
4379
4380         uresp.ah_id = ah->sc_ah.ah_info.ah_idx;
4381         err = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen));
4382         if (err)
4383                 irdma_destroy_ah(ibah, attr->flags);
4384
4385         return err;
4386 }
4387
4388 /**
4389  * irdma_create_ah - create address handle
4390  * @ibah: address handle
4391  * @attr: address handle attributes
4392  * @udata: NULL
4393  *
4394  * returns 0 on success, error otherwise
4395  */
4396 static int irdma_create_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *attr,
4397                            struct ib_udata *udata)
4398 {
4399         struct irdma_ah *ah = container_of(ibah, struct irdma_ah, ibah);
4400         struct irdma_device *iwdev = to_iwdev(ibah->pd->device);
4401         int err;
4402
4403         err = irdma_setup_ah(ibah, attr);
4404         if (err)
4405                 return err;
4406         err = irdma_create_hw_ah(iwdev, ah, attr->flags & RDMA_CREATE_AH_SLEEPABLE);
4407
4408         return err;
4409 }
4410
4411 /**
4412  * irdma_query_ah - Query address handle
4413  * @ibah: pointer to address handle
4414  * @ah_attr: address handle attributes
4415  */
4416 static int irdma_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr)
4417 {
4418         struct irdma_ah *ah = to_iwah(ibah);
4419
4420         memset(ah_attr, 0, sizeof(*ah_attr));
4421         if (ah->av.attrs.ah_flags & IB_AH_GRH) {
4422                 ah_attr->ah_flags = IB_AH_GRH;
4423                 ah_attr->grh.flow_label = ah->sc_ah.ah_info.flow_label;
4424                 ah_attr->grh.traffic_class = ah->sc_ah.ah_info.tc_tos;
4425                 ah_attr->grh.hop_limit = ah->sc_ah.ah_info.hop_ttl;
4426                 ah_attr->grh.sgid_index = ah->sgid_index;
4427                 ah_attr->grh.sgid_index = ah->sgid_index;
4428                 memcpy(&ah_attr->grh.dgid, &ah->dgid,
4429                        sizeof(ah_attr->grh.dgid));
4430         }
4431
4432         return 0;
4433 }
4434
4435 static enum rdma_link_layer irdma_get_link_layer(struct ib_device *ibdev,
4436                                                  u32 port_num)
4437 {
4438         return IB_LINK_LAYER_ETHERNET;
4439 }
4440
4441 static const struct ib_device_ops irdma_roce_dev_ops = {
4442         .attach_mcast = irdma_attach_mcast,
4443         .create_ah = irdma_create_ah,
4444         .create_user_ah = irdma_create_user_ah,
4445         .destroy_ah = irdma_destroy_ah,
4446         .detach_mcast = irdma_detach_mcast,
4447         .get_link_layer = irdma_get_link_layer,
4448         .get_port_immutable = irdma_roce_port_immutable,
4449         .modify_qp = irdma_modify_qp_roce,
4450         .query_ah = irdma_query_ah,
4451         .query_pkey = irdma_query_pkey,
4452 };
4453
4454 static const struct ib_device_ops irdma_iw_dev_ops = {
4455         .modify_qp = irdma_modify_qp,
4456         .get_port_immutable = irdma_iw_port_immutable,
4457         .query_gid = irdma_query_gid,
4458 };
4459
4460 static const struct ib_device_ops irdma_dev_ops = {
4461         .owner = THIS_MODULE,
4462         .driver_id = RDMA_DRIVER_IRDMA,
4463         .uverbs_abi_ver = IRDMA_ABI_VER,
4464
4465         .alloc_hw_port_stats = irdma_alloc_hw_port_stats,
4466         .alloc_mr = irdma_alloc_mr,
4467         .alloc_mw = irdma_alloc_mw,
4468         .alloc_pd = irdma_alloc_pd,
4469         .alloc_ucontext = irdma_alloc_ucontext,
4470         .create_cq = irdma_create_cq,
4471         .create_qp = irdma_create_qp,
4472         .dealloc_driver = irdma_ib_dealloc_device,
4473         .dealloc_mw = irdma_dealloc_mw,
4474         .dealloc_pd = irdma_dealloc_pd,
4475         .dealloc_ucontext = irdma_dealloc_ucontext,
4476         .dereg_mr = irdma_dereg_mr,
4477         .destroy_cq = irdma_destroy_cq,
4478         .destroy_qp = irdma_destroy_qp,
4479         .disassociate_ucontext = irdma_disassociate_ucontext,
4480         .get_dev_fw_str = irdma_get_dev_fw_str,
4481         .get_dma_mr = irdma_get_dma_mr,
4482         .get_hw_stats = irdma_get_hw_stats,
4483         .map_mr_sg = irdma_map_mr_sg,
4484         .mmap = irdma_mmap,
4485         .mmap_free = irdma_mmap_free,
4486         .poll_cq = irdma_poll_cq,
4487         .post_recv = irdma_post_recv,
4488         .post_send = irdma_post_send,
4489         .query_device = irdma_query_device,
4490         .query_port = irdma_query_port,
4491         .query_qp = irdma_query_qp,
4492         .reg_user_mr = irdma_reg_user_mr,
4493         .reg_user_mr_dmabuf = irdma_reg_user_mr_dmabuf,
4494         .req_notify_cq = irdma_req_notify_cq,
4495         .resize_cq = irdma_resize_cq,
4496         INIT_RDMA_OBJ_SIZE(ib_pd, irdma_pd, ibpd),
4497         INIT_RDMA_OBJ_SIZE(ib_ucontext, irdma_ucontext, ibucontext),
4498         INIT_RDMA_OBJ_SIZE(ib_ah, irdma_ah, ibah),
4499         INIT_RDMA_OBJ_SIZE(ib_cq, irdma_cq, ibcq),
4500         INIT_RDMA_OBJ_SIZE(ib_mw, irdma_mr, ibmw),
4501         INIT_RDMA_OBJ_SIZE(ib_qp, irdma_qp, ibqp),
4502 };
4503
4504 /**
4505  * irdma_init_roce_device - initialization of roce rdma device
4506  * @iwdev: irdma device
4507  */
4508 static void irdma_init_roce_device(struct irdma_device *iwdev)
4509 {
4510         iwdev->ibdev.node_type = RDMA_NODE_IB_CA;
4511         addrconf_addr_eui48((u8 *)&iwdev->ibdev.node_guid,
4512                             iwdev->netdev->dev_addr);
4513         ib_set_device_ops(&iwdev->ibdev, &irdma_roce_dev_ops);
4514 }
4515
4516 /**
4517  * irdma_init_iw_device - initialization of iwarp rdma device
4518  * @iwdev: irdma device
4519  */
4520 static int irdma_init_iw_device(struct irdma_device *iwdev)
4521 {
4522         struct net_device *netdev = iwdev->netdev;
4523
4524         iwdev->ibdev.node_type = RDMA_NODE_RNIC;
4525         addrconf_addr_eui48((u8 *)&iwdev->ibdev.node_guid,
4526                             netdev->dev_addr);
4527         iwdev->ibdev.ops.iw_add_ref = irdma_qp_add_ref;
4528         iwdev->ibdev.ops.iw_rem_ref = irdma_qp_rem_ref;
4529         iwdev->ibdev.ops.iw_get_qp = irdma_get_qp;
4530         iwdev->ibdev.ops.iw_connect = irdma_connect;
4531         iwdev->ibdev.ops.iw_accept = irdma_accept;
4532         iwdev->ibdev.ops.iw_reject = irdma_reject;
4533         iwdev->ibdev.ops.iw_create_listen = irdma_create_listen;
4534         iwdev->ibdev.ops.iw_destroy_listen = irdma_destroy_listen;
4535         memcpy(iwdev->ibdev.iw_ifname, netdev->name,
4536                sizeof(iwdev->ibdev.iw_ifname));
4537         ib_set_device_ops(&iwdev->ibdev, &irdma_iw_dev_ops);
4538
4539         return 0;
4540 }
4541
4542 /**
4543  * irdma_init_rdma_device - initialization of rdma device
4544  * @iwdev: irdma device
4545  */
4546 static int irdma_init_rdma_device(struct irdma_device *iwdev)
4547 {
4548         struct pci_dev *pcidev = iwdev->rf->pcidev;
4549         int ret;
4550
4551         if (iwdev->roce_mode) {
4552                 irdma_init_roce_device(iwdev);
4553         } else {
4554                 ret = irdma_init_iw_device(iwdev);
4555                 if (ret)
4556                         return ret;
4557         }
4558         iwdev->ibdev.phys_port_cnt = 1;
4559         iwdev->ibdev.num_comp_vectors = iwdev->rf->ceqs_count;
4560         iwdev->ibdev.dev.parent = &pcidev->dev;
4561         ib_set_device_ops(&iwdev->ibdev, &irdma_dev_ops);
4562
4563         return 0;
4564 }
4565
4566 /**
4567  * irdma_port_ibevent - indicate port event
4568  * @iwdev: irdma device
4569  */
4570 void irdma_port_ibevent(struct irdma_device *iwdev)
4571 {
4572         struct ib_event event;
4573
4574         event.device = &iwdev->ibdev;
4575         event.element.port_num = 1;
4576         event.event =
4577                 iwdev->iw_status ? IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR;
4578         ib_dispatch_event(&event);
4579 }
4580
4581 /**
4582  * irdma_ib_unregister_device - unregister rdma device from IB
4583  * core
4584  * @iwdev: irdma device
4585  */
4586 void irdma_ib_unregister_device(struct irdma_device *iwdev)
4587 {
4588         iwdev->iw_status = 0;
4589         irdma_port_ibevent(iwdev);
4590         ib_unregister_device(&iwdev->ibdev);
4591 }
4592
4593 /**
4594  * irdma_ib_register_device - register irdma device to IB core
4595  * @iwdev: irdma device
4596  */
4597 int irdma_ib_register_device(struct irdma_device *iwdev)
4598 {
4599         int ret;
4600
4601         ret = irdma_init_rdma_device(iwdev);
4602         if (ret)
4603                 return ret;
4604
4605         ret = ib_device_set_netdev(&iwdev->ibdev, iwdev->netdev, 1);
4606         if (ret)
4607                 goto error;
4608         dma_set_max_seg_size(iwdev->rf->hw.device, UINT_MAX);
4609         ret = ib_register_device(&iwdev->ibdev, "irdma%d", iwdev->rf->hw.device);
4610         if (ret)
4611                 goto error;
4612
4613         iwdev->iw_status = 1;
4614         irdma_port_ibevent(iwdev);
4615
4616         return 0;
4617
4618 error:
4619         if (ret)
4620                 ibdev_dbg(&iwdev->ibdev, "VERBS: Register RDMA device fail\n");
4621
4622         return ret;
4623 }
4624
4625 /**
4626  * irdma_ib_dealloc_device
4627  * @ibdev: ib device
4628  *
4629  * callback from ibdev dealloc_driver to deallocate resources
4630  * unber irdma device
4631  */
4632 void irdma_ib_dealloc_device(struct ib_device *ibdev)
4633 {
4634         struct irdma_device *iwdev = to_iwdev(ibdev);
4635
4636         irdma_rt_deinit_hw(iwdev);
4637         irdma_ctrl_deinit_hw(iwdev->rf);
4638         kfree(iwdev->rf);
4639 }