drivers/net/ethernet/qlogic/qed/qed_roce.c

   1 /* QLogic qed NIC Driver
   2  * Copyright (c) 2015-2016  QLogic Corporation
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and /or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32 #include <linux/types.h>
  33 #include <asm/byteorder.h>
  34 #include <linux/bitops.h>
  35 #include <linux/delay.h>
  36 #include <linux/dma-mapping.h>
  37 #include <linux/errno.h>
  38 #include <linux/etherdevice.h>
  39 #include <linux/if_ether.h>
  40 #include <linux/if_vlan.h>
  41 #include <linux/io.h>
  42 #include <linux/ip.h>
  43 #include <linux/ipv6.h>
  44 #include <linux/kernel.h>
  45 #include <linux/list.h>
  46 #include <linux/module.h>
  47 #include <linux/mutex.h>
  48 #include <linux/pci.h>
  49 #include <linux/slab.h>
  50 #include <linux/spinlock.h>
  51 #include <linux/string.h>
  52 #include <linux/tcp.h>
  53 #include <linux/bitops.h>
  54 #include <linux/qed/qed_roce_if.h>
  55 #include <linux/qed/qed_roce_if.h>
  56 #include "qed.h"
  57 #include "qed_cxt.h"
  58 #include "qed_hsi.h"
  59 #include "qed_hw.h"
  60 #include "qed_init_ops.h"
  61 #include "qed_int.h"
  62 #include "qed_ll2.h"
  63 #include "qed_mcp.h"
  64 #include "qed_reg_addr.h"
  65 #include "qed_sp.h"
  66 #include "qed_roce.h"
  67 #include "qed_ll2.h"
  68
  69 void qed_async_roce_event(struct qed_hwfn *p_hwfn,
  70                           struct event_ring_entry *p_eqe)
  71 {
  72         struct qed_rdma_info *p_rdma_info = p_hwfn->p_rdma_info;
  73
  74         p_rdma_info->events.affiliated_event(p_rdma_info->events.context,
  75                                              p_eqe->opcode, &p_eqe->data);
  76 }
  77
  78 static int qed_rdma_bmap_alloc(struct qed_hwfn *p_hwfn,
  79                                struct qed_bmap *bmap, u32 max_count)
  80 {
  81         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "max_count = %08x\n", max_count);
  82
  83         bmap->max_count = max_count;
  84
  85         bmap->bitmap = kzalloc(BITS_TO_LONGS(max_count) * sizeof(long),
  86                                GFP_KERNEL);
  87         if (!bmap->bitmap) {
  88                 DP_NOTICE(p_hwfn,
  89                           "qed bmap alloc failed: cannot allocate memory (bitmap)\n");
  90                 return -ENOMEM;
  91         }
  92
  93         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocated bitmap %p\n",
  94                    bmap->bitmap);
  95         return 0;
  96 }
  97
  98 static int qed_rdma_bmap_alloc_id(struct qed_hwfn *p_hwfn,
  99                                   struct qed_bmap *bmap, u32 *id_num)
 100 {
 101         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "bmap = %p\n", bmap);
 102
 103         *id_num = find_first_zero_bit(bmap->bitmap, bmap->max_count);
 104
 105         if (*id_num >= bmap->max_count) {
 106                 DP_NOTICE(p_hwfn, "no id available max_count=%d\n",
 107                           bmap->max_count);
 108                 return -EINVAL;
 109         }
 110
 111         __set_bit(*id_num, bmap->bitmap);
 112
 113         return 0;
 114 }
 115
 116 static void qed_bmap_release_id(struct qed_hwfn *p_hwfn,
 117                                 struct qed_bmap *bmap, u32 id_num)
 118 {
 119         bool b_acquired;
 120
 121         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "id_num = %08x", id_num);
 122         if (id_num >= bmap->max_count)
 123                 return;
 124
 125         b_acquired = test_and_clear_bit(id_num, bmap->bitmap);
 126         if (!b_acquired) {
 127                 DP_NOTICE(p_hwfn, "ID %d already released\n", id_num);
 128                 return;
 129         }
 130 }
 131
 132 static u32 qed_rdma_get_sb_id(void *p_hwfn, u32 rel_sb_id)
 133 {
 134         /* First sb id for RoCE is after all the l2 sb */
 135         return FEAT_NUM((struct qed_hwfn *)p_hwfn, QED_PF_L2_QUE) + rel_sb_id;
 136 }
 137
 138 static int qed_rdma_alloc(struct qed_hwfn *p_hwfn,
 139                           struct qed_ptt *p_ptt,
 140                           struct qed_rdma_start_in_params *params)
 141 {
 142         struct qed_rdma_info *p_rdma_info;
 143         u32 num_cons, num_tasks;
 144         int rc = -ENOMEM;
 145
 146         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocating RDMA\n");
 147
 148         /* Allocate a struct with current pf rdma info */
 149         p_rdma_info = kzalloc(sizeof(*p_rdma_info), GFP_KERNEL);
 150         if (!p_rdma_info) {
 151                 DP_NOTICE(p_hwfn,
 152                           "qed rdma alloc failed: cannot allocate memory (rdma info). rc = %d\n",
 153                           rc);
 154                 return rc;
 155         }
 156
 157         p_hwfn->p_rdma_info = p_rdma_info;
 158         p_rdma_info->proto = PROTOCOLID_ROCE;
 159
 160         num_cons = qed_cxt_get_proto_cid_count(p_hwfn, p_rdma_info->proto,
 161                                                NULL);
 162
 163         p_rdma_info->num_qps = num_cons / 2;
 164
 165         num_tasks = qed_cxt_get_proto_tid_count(p_hwfn, PROTOCOLID_ROCE);
 166
 167         /* Each MR uses a single task */
 168         p_rdma_info->num_mrs = num_tasks;
 169
 170         /* Queue zone lines are shared between RoCE and L2 in such a way that
 171          * they can be used by each without obstructing the other.
 172          */
 173         p_rdma_info->queue_zone_base = (u16)FEAT_NUM(p_hwfn, QED_L2_QUEUE);
 174
 175         /* Allocate a struct with device params and fill it */
 176         p_rdma_info->dev = kzalloc(sizeof(*p_rdma_info->dev), GFP_KERNEL);
 177         if (!p_rdma_info->dev) {
 178                 DP_NOTICE(p_hwfn,
 179                           "qed rdma alloc failed: cannot allocate memory (rdma info dev). rc = %d\n",
 180                           rc);
 181                 goto free_rdma_info;
 182         }
 183
 184         /* Allocate a struct with port params and fill it */
 185         p_rdma_info->port = kzalloc(sizeof(*p_rdma_info->port), GFP_KERNEL);
 186         if (!p_rdma_info->port) {
 187                 DP_NOTICE(p_hwfn,
 188                           "qed rdma alloc failed: cannot allocate memory (rdma info port). rc = %d\n",
 189                           rc);
 190                 goto free_rdma_dev;
 191         }
 192
 193         /* Allocate bit map for pd's */
 194         rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->pd_map, RDMA_MAX_PDS);
 195         if (rc) {
 196                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
 197                            "Failed to allocate pd_map, rc = %d\n",
 198                            rc);
 199                 goto free_rdma_port;
 200         }
 201
 202         /* Allocate DPI bitmap */
 203         rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->dpi_map,
 204                                  p_hwfn->dpi_count);
 205         if (rc) {
 206                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
 207                            "Failed to allocate DPI bitmap, rc = %d\n", rc);
 208                 goto free_pd_map;
 209         }
 210
 211         /* Allocate bitmap for cq's. The maximum number of CQs is bounded to
 212          * twice the number of QPs.
 213          */
 214         rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->cq_map,
 215                                  p_rdma_info->num_qps * 2);
 216         if (rc) {
 217                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
 218                            "Failed to allocate cq bitmap, rc = %d\n", rc);
 219                 goto free_dpi_map;
 220         }
 221
 222         /* Allocate bitmap for toggle bit for cq icids
 223          * We toggle the bit every time we create or resize cq for a given icid.
 224          * The maximum number of CQs is bounded to  twice the number of QPs.
 225          */
 226         rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->toggle_bits,
 227                                  p_rdma_info->num_qps * 2);
 228         if (rc) {
 229                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
 230                            "Failed to allocate toogle bits, rc = %d\n", rc);
 231                 goto free_cq_map;
 232         }
 233
 234         /* Allocate bitmap for itids */
 235         rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->tid_map,
 236                                  p_rdma_info->num_mrs);
 237         if (rc) {
 238                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
 239                            "Failed to allocate itids bitmaps, rc = %d\n", rc);
 240                 goto free_toggle_map;
 241         }
 242
 243         /* Allocate bitmap for cids used for qps. */
 244         rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->cid_map, num_cons);
 245         if (rc) {
 246                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
 247                            "Failed to allocate cid bitmap, rc = %d\n", rc);
 248                 goto free_tid_map;
 249         }
 250
 251         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocation successful\n");
 252         return 0;
 253
 254 free_tid_map:
 255         kfree(p_rdma_info->tid_map.bitmap);
 256 free_toggle_map:
 257         kfree(p_rdma_info->toggle_bits.bitmap);
 258 free_cq_map:
 259         kfree(p_rdma_info->cq_map.bitmap);
 260 free_dpi_map:
 261         kfree(p_rdma_info->dpi_map.bitmap);
 262 free_pd_map:
 263         kfree(p_rdma_info->pd_map.bitmap);
 264 free_rdma_port:
 265         kfree(p_rdma_info->port);
 266 free_rdma_dev:
 267         kfree(p_rdma_info->dev);
 268 free_rdma_info:
 269         kfree(p_rdma_info);
 270
 271         return rc;
 272 }
 273
 274 static void qed_rdma_resc_free(struct qed_hwfn *p_hwfn)
 275 {
 276         struct qed_rdma_info *p_rdma_info = p_hwfn->p_rdma_info;
 277
 278         kfree(p_rdma_info->cid_map.bitmap);
 279         kfree(p_rdma_info->tid_map.bitmap);
 280         kfree(p_rdma_info->toggle_bits.bitmap);
 281         kfree(p_rdma_info->cq_map.bitmap);
 282         kfree(p_rdma_info->dpi_map.bitmap);
 283         kfree(p_rdma_info->pd_map.bitmap);
 284
 285         kfree(p_rdma_info->port);
 286         kfree(p_rdma_info->dev);
 287
 288         kfree(p_rdma_info);
 289 }
 290
 291 static void qed_rdma_free(struct qed_hwfn *p_hwfn)
 292 {
 293         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Freeing RDMA\n");
 294
 295         qed_rdma_resc_free(p_hwfn);
 296 }
 297
 298 static void qed_rdma_get_guid(struct qed_hwfn *p_hwfn, u8 *guid)
 299 {
 300         guid[0] = p_hwfn->hw_info.hw_mac_addr[0] ^ 2;
 301         guid[1] = p_hwfn->hw_info.hw_mac_addr[1];
 302         guid[2] = p_hwfn->hw_info.hw_mac_addr[2];
 303         guid[3] = 0xff;
 304         guid[4] = 0xfe;
 305         guid[5] = p_hwfn->hw_info.hw_mac_addr[3];
 306         guid[6] = p_hwfn->hw_info.hw_mac_addr[4];
 307         guid[7] = p_hwfn->hw_info.hw_mac_addr[5];
 308 }
 309
 310 static void qed_rdma_init_events(struct qed_hwfn *p_hwfn,
 311                                  struct qed_rdma_start_in_params *params)
 312 {
 313         struct qed_rdma_events *events;
 314
 315         events = &p_hwfn->p_rdma_info->events;
 316
 317         events->unaffiliated_event = params->events->unaffiliated_event;
 318         events->affiliated_event = params->events->affiliated_event;
 319         events->context = params->events->context;
 320 }
 321
 322 static void qed_rdma_init_devinfo(struct qed_hwfn *p_hwfn,
 323                                   struct qed_rdma_start_in_params *params)
 324 {
 325         struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev;
 326         struct qed_dev *cdev = p_hwfn->cdev;
 327         u32 pci_status_control;
 328         u32 num_qps;
 329
 330         /* Vendor specific information */
 331         dev->vendor_id = cdev->vendor_id;
 332         dev->vendor_part_id = cdev->device_id;
 333         dev->hw_ver = 0;
 334         dev->fw_ver = (FW_MAJOR_VERSION << 24) | (FW_MINOR_VERSION << 16) |
 335                       (FW_REVISION_VERSION << 8) | (FW_ENGINEERING_VERSION);
 336
 337         qed_rdma_get_guid(p_hwfn, (u8 *)&dev->sys_image_guid);
 338         dev->node_guid = dev->sys_image_guid;
 339
 340         dev->max_sge = min_t(u32, RDMA_MAX_SGE_PER_SQ_WQE,
 341                              RDMA_MAX_SGE_PER_RQ_WQE);
 342
 343         if (cdev->rdma_max_sge)
 344                 dev->max_sge = min_t(u32, cdev->rdma_max_sge, dev->max_sge);
 345
 346         dev->max_inline = ROCE_REQ_MAX_INLINE_DATA_SIZE;
 347
 348         dev->max_inline = (cdev->rdma_max_inline) ?
 349                           min_t(u32, cdev->rdma_max_inline, dev->max_inline) :
 350                           dev->max_inline;
 351
 352         dev->max_wqe = QED_RDMA_MAX_WQE;
 353         dev->max_cnq = (u8)FEAT_NUM(p_hwfn, QED_RDMA_CNQ);
 354
 355         /* The number of QPs may be higher than QED_ROCE_MAX_QPS, because
 356          * it is up-aligned to 16 and then to ILT page size within qed cxt.
 357          * This is OK in terms of ILT but we don't want to configure the FW
 358          * above its abilities
 359          */
 360         num_qps = ROCE_MAX_QPS;
 361         num_qps = min_t(u64, num_qps, p_hwfn->p_rdma_info->num_qps);
 362         dev->max_qp = num_qps;
 363
 364         /* CQs uses the same icids that QPs use hence they are limited by the
 365          * number of icids. There are two icids per QP.
 366          */
 367         dev->max_cq = num_qps * 2;
 368
 369         /* The number of mrs is smaller by 1 since the first is reserved */
 370         dev->max_mr = p_hwfn->p_rdma_info->num_mrs - 1;
 371         dev->max_mr_size = QED_RDMA_MAX_MR_SIZE;
 372
 373         /* The maximum CQE capacity per CQ supported.
 374          * max number of cqes will be in two layer pbl,
 375          * 8 is the pointer size in bytes
 376          * 32 is the size of cq element in bytes
 377          */
 378         if (params->cq_mode == QED_RDMA_CQ_MODE_32_BITS)
 379                 dev->max_cqe = QED_RDMA_MAX_CQE_32_BIT;
 380         else
 381                 dev->max_cqe = QED_RDMA_MAX_CQE_16_BIT;
 382
 383         dev->max_mw = 0;
 384         dev->max_fmr = QED_RDMA_MAX_FMR;
 385         dev->max_mr_mw_fmr_pbl = (PAGE_SIZE / 8) * (PAGE_SIZE / 8);
 386         dev->max_mr_mw_fmr_size = dev->max_mr_mw_fmr_pbl * PAGE_SIZE;
 387         dev->max_pkey = QED_RDMA_MAX_P_KEY;
 388
 389         dev->max_qp_resp_rd_atomic_resc = RDMA_RING_PAGE_SIZE /
 390                                           (RDMA_RESP_RD_ATOMIC_ELM_SIZE * 2);
 391         dev->max_qp_req_rd_atomic_resc = RDMA_RING_PAGE_SIZE /
 392                                          RDMA_REQ_RD_ATOMIC_ELM_SIZE;
 393         dev->max_dev_resp_rd_atomic_resc = dev->max_qp_resp_rd_atomic_resc *
 394                                            p_hwfn->p_rdma_info->num_qps;
 395         dev->page_size_caps = QED_RDMA_PAGE_SIZE_CAPS;
 396         dev->dev_ack_delay = QED_RDMA_ACK_DELAY;
 397         dev->max_pd = RDMA_MAX_PDS;
 398         dev->max_ah = p_hwfn->p_rdma_info->num_qps;
 399         dev->max_stats_queues = (u8)RESC_NUM(p_hwfn, QED_RDMA_STATS_QUEUE);
 400
 401         /* Set capablities */
 402         dev->dev_caps = 0;
 403         SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_RNR_NAK, 1);
 404         SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_PORT_ACTIVE_EVENT, 1);
 405         SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_PORT_CHANGE_EVENT, 1);
 406         SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_RESIZE_CQ, 1);
 407         SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_BASE_MEMORY_EXT, 1);
 408         SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_BASE_QUEUE_EXT, 1);
 409         SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_ZBVA, 1);
 410         SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_LOCAL_INV_FENCE, 1);
 411
 412         /* Check atomic operations support in PCI configuration space. */
 413         pci_read_config_dword(cdev->pdev,
 414                               cdev->pdev->pcie_cap + PCI_EXP_DEVCTL2,
 415                               &pci_status_control);
 416
 417         if (pci_status_control & PCI_EXP_DEVCTL2_LTR_EN)
 418                 SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_ATOMIC_OP, 1);
 419 }
 420
 421 static void qed_rdma_init_port(struct qed_hwfn *p_hwfn)
 422 {
 423         struct qed_rdma_port *port = p_hwfn->p_rdma_info->port;
 424         struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev;
 425
 426         port->port_state = p_hwfn->mcp_info->link_output.link_up ?
 427                            QED_RDMA_PORT_UP : QED_RDMA_PORT_DOWN;
 428
 429         port->max_msg_size = min_t(u64,
 430                                    (dev->max_mr_mw_fmr_size *
 431                                     p_hwfn->cdev->rdma_max_sge),
 432                                    BIT(31));
 433
 434         port->pkey_bad_counter = 0;
 435 }
 436
 437 static int qed_rdma_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 438 {
 439         u32 ll2_ethertype_en;
 440
 441         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Initializing HW\n");
 442         p_hwfn->b_rdma_enabled_in_prs = false;
 443
 444         qed_wr(p_hwfn, p_ptt, PRS_REG_ROCE_DEST_QP_MAX_PF, 0);
 445
 446         p_hwfn->rdma_prs_search_reg = PRS_REG_SEARCH_ROCE;
 447
 448         /* We delay writing to this reg until first cid is allocated. See
 449          * qed_cxt_dynamic_ilt_alloc function for more details
 450          */
 451         ll2_ethertype_en = qed_rd(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN);
 452         qed_wr(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN,
 453                (ll2_ethertype_en | 0x01));
 454
 455         if (qed_cxt_get_proto_cid_start(p_hwfn, PROTOCOLID_ROCE) % 2) {
 456                 DP_NOTICE(p_hwfn, "The first RoCE's cid should be even\n");
 457                 return -EINVAL;
 458         }
 459
 460         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Initializing HW - Done\n");
 461         return 0;
 462 }
 463
 464 static int qed_rdma_start_fw(struct qed_hwfn *p_hwfn,
 465                              struct qed_rdma_start_in_params *params,
 466                              struct qed_ptt *p_ptt)
 467 {
 468         struct rdma_init_func_ramrod_data *p_ramrod;
 469         struct qed_rdma_cnq_params *p_cnq_pbl_list;
 470         struct rdma_init_func_hdr *p_params_header;
 471         struct rdma_cnq_params *p_cnq_params;
 472         struct qed_sp_init_data init_data;
 473         struct qed_spq_entry *p_ent;
 474         u32 cnq_id, sb_id;
 475         int rc;
 476
 477         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Starting FW\n");
 478
 479         /* Save the number of cnqs for the function close ramrod */
 480         p_hwfn->p_rdma_info->num_cnqs = params->desired_cnq;
 481
 482         /* Get SPQ entry */
 483         memset(&init_data, 0, sizeof(init_data));
 484         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 485         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
 486
 487         rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_FUNC_INIT,
 488                                  p_hwfn->p_rdma_info->proto, &init_data);
 489         if (rc)
 490                 return rc;
 491
 492         p_ramrod = &p_ent->ramrod.roce_init_func.rdma;
 493
 494         p_params_header = &p_ramrod->params_header;
 495         p_params_header->cnq_start_offset = (u8)RESC_START(p_hwfn,
 496                                                            QED_RDMA_CNQ_RAM);
 497         p_params_header->num_cnqs = params->desired_cnq;
 498
 499         if (params->cq_mode == QED_RDMA_CQ_MODE_16_BITS)
 500                 p_params_header->cq_ring_mode = 1;
 501         else
 502                 p_params_header->cq_ring_mode = 0;
 503
 504         for (cnq_id = 0; cnq_id < params->desired_cnq; cnq_id++) {
 505                 sb_id = qed_rdma_get_sb_id(p_hwfn, cnq_id);
 506                 p_cnq_params = &p_ramrod->cnq_params[cnq_id];
 507                 p_cnq_pbl_list = &params->cnq_pbl_list[cnq_id];
 508                 p_cnq_params->sb_num =
 509                         cpu_to_le16(p_hwfn->sbs_info[sb_id]->igu_sb_id);
 510
 511                 p_cnq_params->sb_index = p_hwfn->pf_params.rdma_pf_params.gl_pi;
 512                 p_cnq_params->num_pbl_pages = p_cnq_pbl_list->num_pbl_pages;
 513
 514                 DMA_REGPAIR_LE(p_cnq_params->pbl_base_addr,
 515                                p_cnq_pbl_list->pbl_ptr);
 516
 517                 /* we assume here that cnq_id and qz_offset are the same */
 518                 p_cnq_params->queue_zone_num =
 519                         cpu_to_le16(p_hwfn->p_rdma_info->queue_zone_base +
 520                                     cnq_id);
 521         }
 522
 523         return qed_spq_post(p_hwfn, p_ent, NULL);
 524 }
 525
 526 static int qed_rdma_alloc_tid(void *rdma_cxt, u32 *itid)
 527 {
 528         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 529         int rc;
 530
 531         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocate TID\n");
 532
 533         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
 534         rc = qed_rdma_bmap_alloc_id(p_hwfn,
 535                                     &p_hwfn->p_rdma_info->tid_map, itid);
 536         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
 537         if (rc)
 538                 goto out;
 539
 540         rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_TASK, *itid);
 541 out:
 542         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocate TID - done, rc = %d\n", rc);
 543         return rc;
 544 }
 545
 546 static int qed_rdma_reserve_lkey(struct qed_hwfn *p_hwfn)
 547 {
 548         struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev;
 549
 550         /* The first DPI is reserved for the Kernel */
 551         __set_bit(0, p_hwfn->p_rdma_info->dpi_map.bitmap);
 552
 553         /* Tid 0 will be used as the key for "reserved MR".
 554          * The driver should allocate memory for it so it can be loaded but no
 555          * ramrod should be passed on it.
 556          */
 557         qed_rdma_alloc_tid(p_hwfn, &dev->reserved_lkey);
 558         if (dev->reserved_lkey != RDMA_RESERVED_LKEY) {
 559                 DP_NOTICE(p_hwfn,
 560                           "Reserved lkey should be equal to RDMA_RESERVED_LKEY\n");
 561                 return -EINVAL;
 562         }
 563
 564         return 0;
 565 }
 566
 567 static int qed_rdma_setup(struct qed_hwfn *p_hwfn,
 568                           struct qed_ptt *p_ptt,
 569                           struct qed_rdma_start_in_params *params)
 570 {
 571         int rc;
 572
 573         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA setup\n");
 574
 575         spin_lock_init(&p_hwfn->p_rdma_info->lock);
 576
 577         qed_rdma_init_devinfo(p_hwfn, params);
 578         qed_rdma_init_port(p_hwfn);
 579         qed_rdma_init_events(p_hwfn, params);
 580
 581         rc = qed_rdma_reserve_lkey(p_hwfn);
 582         if (rc)
 583                 return rc;
 584
 585         rc = qed_rdma_init_hw(p_hwfn, p_ptt);
 586         if (rc)
 587                 return rc;
 588
 589         return qed_rdma_start_fw(p_hwfn, params, p_ptt);
 590 }
 591
 592 static int qed_rdma_stop(void *rdma_cxt)
 593 {
 594         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 595         struct rdma_close_func_ramrod_data *p_ramrod;
 596         struct qed_sp_init_data init_data;
 597         struct qed_spq_entry *p_ent;
 598         struct qed_ptt *p_ptt;
 599         u32 ll2_ethertype_en;
 600         int rc = -EBUSY;
 601
 602         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA stop\n");
 603
 604         p_ptt = qed_ptt_acquire(p_hwfn);
 605         if (!p_ptt) {
 606                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Failed to acquire PTT\n");
 607                 return rc;
 608         }
 609
 610         /* Disable RoCE search */
 611         qed_wr(p_hwfn, p_ptt, p_hwfn->rdma_prs_search_reg, 0);
 612         p_hwfn->b_rdma_enabled_in_prs = false;
 613
 614         qed_wr(p_hwfn, p_ptt, PRS_REG_ROCE_DEST_QP_MAX_PF, 0);
 615
 616         ll2_ethertype_en = qed_rd(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN);
 617
 618         qed_wr(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN,
 619                (ll2_ethertype_en & 0xFFFE));
 620
 621         qed_ptt_release(p_hwfn, p_ptt);
 622
 623         /* Get SPQ entry */
 624         memset(&init_data, 0, sizeof(init_data));
 625         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 626         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
 627
 628         /* Stop RoCE */
 629         rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_FUNC_CLOSE,
 630                                  p_hwfn->p_rdma_info->proto, &init_data);
 631         if (rc)
 632                 goto out;
 633
 634         p_ramrod = &p_ent->ramrod.rdma_close_func;
 635
 636         p_ramrod->num_cnqs = p_hwfn->p_rdma_info->num_cnqs;
 637         p_ramrod->cnq_start_offset = (u8)RESC_START(p_hwfn, QED_RDMA_CNQ_RAM);
 638
 639         rc = qed_spq_post(p_hwfn, p_ent, NULL);
 640
 641 out:
 642         qed_rdma_free(p_hwfn);
 643
 644         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA stop done, rc = %d\n", rc);
 645         return rc;
 646 }
 647
 648 static int qed_rdma_add_user(void *rdma_cxt,
 649                              struct qed_rdma_add_user_out_params *out_params)
 650 {
 651         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 652         u32 dpi_start_offset;
 653         u32 returned_id = 0;
 654         int rc;
 655
 656         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Adding User\n");
 657
 658         /* Allocate DPI */
 659         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
 660         rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_hwfn->p_rdma_info->dpi_map,
 661                                     &returned_id);
 662         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
 663
 664         out_params->dpi = (u16)returned_id;
 665
 666         /* Calculate the corresponding DPI address */
 667         dpi_start_offset = p_hwfn->dpi_start_offset;
 668
 669         out_params->dpi_addr = (u64)((u8 __iomem *)p_hwfn->doorbells +
 670                                      dpi_start_offset +
 671                                      ((out_params->dpi) * p_hwfn->dpi_size));
 672
 673         out_params->dpi_phys_addr = p_hwfn->cdev->db_phys_addr +
 674                                     dpi_start_offset +
 675                                     ((out_params->dpi) * p_hwfn->dpi_size);
 676
 677         out_params->dpi_size = p_hwfn->dpi_size;
 678
 679         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Adding user - done, rc = %d\n", rc);
 680         return rc;
 681 }
 682
 683 static struct qed_rdma_port *qed_rdma_query_port(void *rdma_cxt)
 684 {
 685         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 686         struct qed_rdma_port *p_port = p_hwfn->p_rdma_info->port;
 687
 688         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA Query port\n");
 689
 690         /* Link may have changed */
 691         p_port->port_state = p_hwfn->mcp_info->link_output.link_up ?
 692                              QED_RDMA_PORT_UP : QED_RDMA_PORT_DOWN;
 693
 694         p_port->link_speed = p_hwfn->mcp_info->link_output.speed;
 695
 696         return p_port;
 697 }
 698
 699 static struct qed_rdma_device *qed_rdma_query_device(void *rdma_cxt)
 700 {
 701         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 702
 703         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Query device\n");
 704
 705         /* Return struct with device parameters */
 706         return p_hwfn->p_rdma_info->dev;
 707 }
 708
 709 static void qed_rdma_free_tid(void *rdma_cxt, u32 itid)
 710 {
 711         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 712
 713         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "itid = %08x\n", itid);
 714
 715         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
 716         qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->tid_map, itid);
 717         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
 718 }
 719
 720 static void qed_rdma_cnq_prod_update(void *rdma_cxt, u8 qz_offset, u16 prod)
 721 {
 722         struct qed_hwfn *p_hwfn;
 723         u16 qz_num;
 724         u32 addr;
 725
 726         p_hwfn = (struct qed_hwfn *)rdma_cxt;
 727         qz_num = p_hwfn->p_rdma_info->queue_zone_base + qz_offset;
 728         addr = GTT_BAR0_MAP_REG_USDM_RAM +
 729                USTORM_COMMON_QUEUE_CONS_OFFSET(qz_num);
 730
 731         REG_WR16(p_hwfn, addr, prod);
 732
 733         /* keep prod updates ordered */
 734         wmb();
 735 }
 736
 737 static int qed_fill_rdma_dev_info(struct qed_dev *cdev,
 738                                   struct qed_dev_rdma_info *info)
 739 {
 740         memset(info, 0, sizeof(*info));
 741
 742         info->rdma_type = QED_RDMA_TYPE_ROCE;
 743
 744         qed_fill_dev_info(cdev, &info->common);
 745
 746         return 0;
 747 }
 748
 749 static int qed_rdma_get_sb_start(struct qed_dev *cdev)
 750 {
 751         int feat_num;
 752
 753         if (cdev->num_hwfns > 1)
 754                 feat_num = FEAT_NUM(QED_LEADING_HWFN(cdev), QED_PF_L2_QUE);
 755         else
 756                 feat_num = FEAT_NUM(QED_LEADING_HWFN(cdev), QED_PF_L2_QUE) *
 757                            cdev->num_hwfns;
 758
 759         return feat_num;
 760 }
 761
 762 static int qed_rdma_get_min_cnq_msix(struct qed_dev *cdev)
 763 {
 764         int n_cnq = FEAT_NUM(QED_LEADING_HWFN(cdev), QED_RDMA_CNQ);
 765         int n_msix = cdev->int_params.rdma_msix_cnt;
 766
 767         return min_t(int, n_cnq, n_msix);
 768 }
 769
 770 static int qed_rdma_set_int(struct qed_dev *cdev, u16 cnt)
 771 {
 772         int limit = 0;
 773
 774         /* Mark the fastpath as free/used */
 775         cdev->int_params.fp_initialized = cnt ? true : false;
 776
 777         if (cdev->int_params.out.int_mode != QED_INT_MODE_MSIX) {
 778                 DP_ERR(cdev,
 779                        "qed roce supports only MSI-X interrupts (detected %d).\n",
 780                        cdev->int_params.out.int_mode);
 781                 return -EINVAL;
 782         } else if (cdev->int_params.fp_msix_cnt) {
 783                 limit = cdev->int_params.rdma_msix_cnt;
 784         }
 785
 786         if (!limit)
 787                 return -ENOMEM;
 788
 789         return min_t(int, cnt, limit);
 790 }
 791
 792 static int qed_rdma_get_int(struct qed_dev *cdev, struct qed_int_info *info)
 793 {
 794         memset(info, 0, sizeof(*info));
 795
 796         if (!cdev->int_params.fp_initialized) {
 797                 DP_INFO(cdev,
 798                         "Protocol driver requested interrupt information, but its support is not yet configured\n");
 799                 return -EINVAL;
 800         }
 801
 802         if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) {
 803                 int msix_base = cdev->int_params.rdma_msix_base;
 804
 805                 info->msix_cnt = cdev->int_params.rdma_msix_cnt;
 806                 info->msix = &cdev->int_params.msix_table[msix_base];
 807
 808                 DP_VERBOSE(cdev, QED_MSG_RDMA, "msix_cnt = %d msix_base=%d\n",
 809                            info->msix_cnt, msix_base);
 810         }
 811
 812         return 0;
 813 }
 814
 815 static int qed_rdma_alloc_pd(void *rdma_cxt, u16 *pd)
 816 {
 817         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 818         u32 returned_id;
 819         int rc;
 820
 821         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Alloc PD\n");
 822
 823         /* Allocates an unused protection domain */
 824         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
 825         rc = qed_rdma_bmap_alloc_id(p_hwfn,
 826                                     &p_hwfn->p_rdma_info->pd_map, &returned_id);
 827         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
 828
 829         *pd = (u16)returned_id;
 830
 831         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Alloc PD - done, rc = %d\n", rc);
 832         return rc;
 833 }
 834
 835 static void qed_rdma_free_pd(void *rdma_cxt, u16 pd)
 836 {
 837         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 838
 839         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "pd = %08x\n", pd);
 840
 841         /* Returns a previously allocated protection domain for reuse */
 842         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
 843         qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->pd_map, pd);
 844         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
 845 }
 846
 847 static enum qed_rdma_toggle_bit
 848 qed_rdma_toggle_bit_create_resize_cq(struct qed_hwfn *p_hwfn, u16 icid)
 849 {
 850         struct qed_rdma_info *p_info = p_hwfn->p_rdma_info;
 851         enum qed_rdma_toggle_bit toggle_bit;
 852         u32 bmap_id;
 853
 854         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", icid);
 855
 856         /* the function toggle the bit that is related to a given icid
 857          * and returns the new toggle bit's value
 858          */
 859         bmap_id = icid - qed_cxt_get_proto_cid_start(p_hwfn, p_info->proto);
 860
 861         spin_lock_bh(&p_info->lock);
 862         toggle_bit = !test_and_change_bit(bmap_id,
 863                                           p_info->toggle_bits.bitmap);
 864         spin_unlock_bh(&p_info->lock);
 865
 866         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QED_RDMA_TOGGLE_BIT_= %d\n",
 867                    toggle_bit);
 868
 869         return toggle_bit;
 870 }
 871
 872 static int qed_rdma_create_cq(void *rdma_cxt,
 873                               struct qed_rdma_create_cq_in_params *params,
 874                               u16 *icid)
 875 {
 876         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 877         struct qed_rdma_info *p_info = p_hwfn->p_rdma_info;
 878         struct rdma_create_cq_ramrod_data *p_ramrod;
 879         enum qed_rdma_toggle_bit toggle_bit;
 880         struct qed_sp_init_data init_data;
 881         struct qed_spq_entry *p_ent;
 882         u32 returned_id, start_cid;
 883         int rc;
 884
 885         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "cq_handle = %08x%08x\n",
 886                    params->cq_handle_hi, params->cq_handle_lo);
 887
 888         /* Allocate icid */
 889         spin_lock_bh(&p_info->lock);
 890         rc = qed_rdma_bmap_alloc_id(p_hwfn,
 891                                     &p_info->cq_map, &returned_id);
 892         spin_unlock_bh(&p_info->lock);
 893
 894         if (rc) {
 895                 DP_NOTICE(p_hwfn, "Can't create CQ, rc = %d\n", rc);
 896                 return rc;
 897         }
 898
 899         start_cid = qed_cxt_get_proto_cid_start(p_hwfn,
 900                                                 p_info->proto);
 901         *icid = returned_id + start_cid;
 902
 903         /* Check if icid requires a page allocation */
 904         rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, *icid);
 905         if (rc)
 906                 goto err;
 907
 908         /* Get SPQ entry */
 909         memset(&init_data, 0, sizeof(init_data));
 910         init_data.cid = *icid;
 911         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 912         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
 913
 914         /* Send create CQ ramrod */
 915         rc = qed_sp_init_request(p_hwfn, &p_ent,
 916                                  RDMA_RAMROD_CREATE_CQ,
 917                                  p_info->proto, &init_data);
 918         if (rc)
 919                 goto err;
 920
 921         p_ramrod = &p_ent->ramrod.rdma_create_cq;
 922
 923         p_ramrod->cq_handle.hi = cpu_to_le32(params->cq_handle_hi);
 924         p_ramrod->cq_handle.lo = cpu_to_le32(params->cq_handle_lo);
 925         p_ramrod->dpi = cpu_to_le16(params->dpi);
 926         p_ramrod->is_two_level_pbl = params->pbl_two_level;
 927         p_ramrod->max_cqes = cpu_to_le32(params->cq_size);
 928         DMA_REGPAIR_LE(p_ramrod->pbl_addr, params->pbl_ptr);
 929         p_ramrod->pbl_num_pages = cpu_to_le16(params->pbl_num_pages);
 930         p_ramrod->cnq_id = (u8)RESC_START(p_hwfn, QED_RDMA_CNQ_RAM) +
 931                            params->cnq_id;
 932         p_ramrod->int_timeout = params->int_timeout;
 933
 934         /* toggle the bit for every resize or create cq for a given icid */
 935         toggle_bit = qed_rdma_toggle_bit_create_resize_cq(p_hwfn, *icid);
 936
 937         p_ramrod->toggle_bit = toggle_bit;
 938
 939         rc = qed_spq_post(p_hwfn, p_ent, NULL);
 940         if (rc) {
 941                 /* restore toggle bit */
 942                 qed_rdma_toggle_bit_create_resize_cq(p_hwfn, *icid);
 943                 goto err;
 944         }
 945
 946         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Created CQ, rc = %d\n", rc);
 947         return rc;
 948
 949 err:
 950         /* release allocated icid */
 951         qed_bmap_release_id(p_hwfn, &p_info->cq_map, returned_id);
 952         DP_NOTICE(p_hwfn, "Create CQ failed, rc = %d\n", rc);
 953
 954         return rc;
 955 }
 956
 957 static int
 958 qed_rdma_destroy_cq(void *rdma_cxt,
 959                     struct qed_rdma_destroy_cq_in_params *in_params,
 960                     struct qed_rdma_destroy_cq_out_params *out_params)
 961 {
 962         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 963         struct rdma_destroy_cq_output_params *p_ramrod_res;
 964         struct rdma_destroy_cq_ramrod_data *p_ramrod;
 965         struct qed_sp_init_data init_data;
 966         struct qed_spq_entry *p_ent;
 967         dma_addr_t ramrod_res_phys;
 968         int rc = -ENOMEM;
 969
 970         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", in_params->icid);
 971
 972         p_ramrod_res =
 973             (struct rdma_destroy_cq_output_params *)
 974             dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
 975                                sizeof(struct rdma_destroy_cq_output_params),
 976                                &ramrod_res_phys, GFP_KERNEL);
 977         if (!p_ramrod_res) {
 978                 DP_NOTICE(p_hwfn,
 979                           "qed destroy cq failed: cannot allocate memory (ramrod)\n");
 980                 return rc;
 981         }
 982
 983         /* Get SPQ entry */
 984         memset(&init_data, 0, sizeof(init_data));
 985         init_data.cid = in_params->icid;
 986         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 987         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
 988
 989         /* Send destroy CQ ramrod */
 990         rc = qed_sp_init_request(p_hwfn, &p_ent,
 991                                  RDMA_RAMROD_DESTROY_CQ,
 992                                  p_hwfn->p_rdma_info->proto, &init_data);
 993         if (rc)
 994                 goto err;
 995
 996         p_ramrod = &p_ent->ramrod.rdma_destroy_cq;
 997         DMA_REGPAIR_LE(p_ramrod->output_params_addr, ramrod_res_phys);
 998
 999         rc = qed_spq_post(p_hwfn, p_ent, NULL);
1000         if (rc)
1001                 goto err;
1002
1003         out_params->num_cq_notif = le16_to_cpu(p_ramrod_res->cnq_num);
1004
1005         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
1006                           sizeof(struct rdma_destroy_cq_output_params),
1007                           p_ramrod_res, ramrod_res_phys);
1008
1009         /* Free icid */
1010         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
1011
1012         qed_bmap_release_id(p_hwfn,
1013                             &p_hwfn->p_rdma_info->cq_map,
1014                             (in_params->icid -
1015                              qed_cxt_get_proto_cid_start(p_hwfn,
1016                                                          p_hwfn->
1017                                                          p_rdma_info->proto)));
1018
1019         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
1020
1021         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Destroyed CQ, rc = %d\n", rc);
1022         return rc;
1023
1024 err:    dma_free_coherent(&p_hwfn->cdev->pdev->dev,
1025                           sizeof(struct rdma_destroy_cq_output_params),
1026                           p_ramrod_res, ramrod_res_phys);
1027
1028         return rc;
1029 }
1030
1031 static void qed_rdma_set_fw_mac(u16 *p_fw_mac, u8 *p_qed_mac)
1032 {
1033         p_fw_mac[0] = cpu_to_le16((p_qed_mac[0] << 8) + p_qed_mac[1]);
1034         p_fw_mac[1] = cpu_to_le16((p_qed_mac[2] << 8) + p_qed_mac[3]);
1035         p_fw_mac[2] = cpu_to_le16((p_qed_mac[4] << 8) + p_qed_mac[5]);
1036 }
1037
1038 static void qed_rdma_copy_gids(struct qed_rdma_qp *qp, __le32 *src_gid,
1039                                __le32 *dst_gid)
1040 {
1041         u32 i;
1042
1043         if (qp->roce_mode == ROCE_V2_IPV4) {
1044                 /* The IPv4 addresses shall be aligned to the highest word.
1045                  * The lower words must be zero.
1046                  */
1047                 memset(src_gid, 0, sizeof(union qed_gid));
1048                 memset(dst_gid, 0, sizeof(union qed_gid));
1049                 src_gid[3] = cpu_to_le32(qp->sgid.ipv4_addr);
1050                 dst_gid[3] = cpu_to_le32(qp->dgid.ipv4_addr);
1051         } else {
1052                 /* GIDs and IPv6 addresses coincide in location and size */
1053                 for (i = 0; i < ARRAY_SIZE(qp->sgid.dwords); i++) {
1054                         src_gid[i] = cpu_to_le32(qp->sgid.dwords[i]);
1055                         dst_gid[i] = cpu_to_le32(qp->dgid.dwords[i]);
1056                 }
1057         }
1058 }
1059
1060 static enum roce_flavor qed_roce_mode_to_flavor(enum roce_mode roce_mode)
1061 {
1062         switch (roce_mode) {
1063         case ROCE_V1:
1064                 return PLAIN_ROCE;
1065         case ROCE_V2_IPV4:
1066                 return RROCE_IPV4;
1067         case ROCE_V2_IPV6:
1068                 return RROCE_IPV6;
1069         default:
1070                 return MAX_ROCE_FLAVOR;
1071         }
1072 }
1073
1074 static int qed_roce_alloc_cid(struct qed_hwfn *p_hwfn, u16 *cid)
1075 {
1076         struct qed_rdma_info *p_rdma_info = p_hwfn->p_rdma_info;
1077         u32 responder_icid;
1078         u32 requester_icid;
1079         int rc;
1080
1081         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
1082         rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_rdma_info->cid_map,
1083                                     &responder_icid);
1084         if (rc) {
1085                 spin_unlock_bh(&p_rdma_info->lock);
1086                 return rc;
1087         }
1088
1089         rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_rdma_info->cid_map,
1090                                     &requester_icid);
1091
1092         spin_unlock_bh(&p_rdma_info->lock);
1093         if (rc)
1094                 goto err;
1095
1096         /* the two icid's should be adjacent */
1097         if ((requester_icid - responder_icid) != 1) {
1098                 DP_NOTICE(p_hwfn, "Failed to allocate two adjacent qp's'\n");
1099                 rc = -EINVAL;
1100                 goto err;
1101         }
1102
1103         responder_icid += qed_cxt_get_proto_cid_start(p_hwfn,
1104                                                       p_rdma_info->proto);
1105         requester_icid += qed_cxt_get_proto_cid_start(p_hwfn,
1106                                                       p_rdma_info->proto);
1107
1108         /* If these icids require a new ILT line allocate DMA-able context for
1109          * an ILT page
1110          */
1111         rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, responder_icid);
1112         if (rc)
1113                 goto err;
1114
1115         rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, requester_icid);
1116         if (rc)
1117                 goto err;
1118
1119         *cid = (u16)responder_icid;
1120         return rc;
1121
1122 err:
1123         spin_lock_bh(&p_rdma_info->lock);
1124         qed_bmap_release_id(p_hwfn, &p_rdma_info->cid_map, responder_icid);
1125         qed_bmap_release_id(p_hwfn, &p_rdma_info->cid_map, requester_icid);
1126
1127         spin_unlock_bh(&p_rdma_info->lock);
1128         DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
1129                    "Allocate CID - failed, rc = %d\n", rc);
1130         return rc;
1131 }
1132
1133 static int qed_roce_sp_create_responder(struct qed_hwfn *p_hwfn,
1134                                         struct qed_rdma_qp *qp)
1135 {
1136         struct roce_create_qp_resp_ramrod_data *p_ramrod;
1137         struct qed_sp_init_data init_data;
1138         union qed_qm_pq_params qm_params;
1139         enum roce_flavor roce_flavor;
1140         struct qed_spq_entry *p_ent;
1141         u16 physical_queue0 = 0;
1142         int rc;
1143
1144         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
1145
1146         /* Allocate DMA-able memory for IRQ */
1147         qp->irq_num_pages = 1;
1148         qp->irq = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
1149                                      RDMA_RING_PAGE_SIZE,
1150                                      &qp->irq_phys_addr, GFP_KERNEL);
1151         if (!qp->irq) {
1152                 rc = -ENOMEM;
1153                 DP_NOTICE(p_hwfn,
1154                           "qed create responder failed: cannot allocate memory (irq). rc = %d\n",
1155                           rc);
1156                 return rc;
1157         }
1158
1159         /* Get SPQ entry */
1160         memset(&init_data, 0, sizeof(init_data));
1161         init_data.cid = qp->icid;
1162         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
1163         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
1164
1165         rc = qed_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_CREATE_QP,
1166                                  PROTOCOLID_ROCE, &init_data);
1167         if (rc)
1168                 goto err;
1169
1170         p_ramrod = &p_ent->ramrod.roce_create_qp_resp;
1171
1172         p_ramrod->flags = 0;
1173
1174         roce_flavor = qed_roce_mode_to_flavor(qp->roce_mode);
1175         SET_FIELD(p_ramrod->flags,
1176                   ROCE_CREATE_QP_RESP_RAMROD_DATA_ROCE_FLAVOR, roce_flavor);
1177
1178         SET_FIELD(p_ramrod->flags,
1179                   ROCE_CREATE_QP_RESP_RAMROD_DATA_RDMA_RD_EN,
1180                   qp->incoming_rdma_read_en);
1181
1182         SET_FIELD(p_ramrod->flags,
1183                   ROCE_CREATE_QP_RESP_RAMROD_DATA_RDMA_WR_EN,
1184                   qp->incoming_rdma_write_en);
1185
1186         SET_FIELD(p_ramrod->flags,
1187                   ROCE_CREATE_QP_RESP_RAMROD_DATA_ATOMIC_EN,
1188                   qp->incoming_atomic_en);
1189
1190         SET_FIELD(p_ramrod->flags,
1191                   ROCE_CREATE_QP_RESP_RAMROD_DATA_E2E_FLOW_CONTROL_EN,
1192                   qp->e2e_flow_control_en);
1193
1194         SET_FIELD(p_ramrod->flags,
1195                   ROCE_CREATE_QP_RESP_RAMROD_DATA_SRQ_FLG, qp->use_srq);
1196
1197         SET_FIELD(p_ramrod->flags,
1198                   ROCE_CREATE_QP_RESP_RAMROD_DATA_RESERVED_KEY_EN,
1199                   qp->fmr_and_reserved_lkey);
1200
1201         SET_FIELD(p_ramrod->flags,
1202                   ROCE_CREATE_QP_RESP_RAMROD_DATA_MIN_RNR_NAK_TIMER,
1203                   qp->min_rnr_nak_timer);
1204
1205         p_ramrod->max_ird = qp->max_rd_atomic_resp;
1206         p_ramrod->traffic_class = qp->traffic_class_tos;
1207         p_ramrod->hop_limit = qp->hop_limit_ttl;
1208         p_ramrod->irq_num_pages = qp->irq_num_pages;
1209         p_ramrod->p_key = cpu_to_le16(qp->pkey);
1210         p_ramrod->flow_label = cpu_to_le32(qp->flow_label);
1211         p_ramrod->dst_qp_id = cpu_to_le32(qp->dest_qp);
1212         p_ramrod->mtu = cpu_to_le16(qp->mtu);
1213         p_ramrod->initial_psn = cpu_to_le32(qp->rq_psn);
1214         p_ramrod->pd = cpu_to_le16(qp->pd);
1215         p_ramrod->rq_num_pages = cpu_to_le16(qp->rq_num_pages);
1216         DMA_REGPAIR_LE(p_ramrod->rq_pbl_addr, qp->rq_pbl_ptr);
1217         DMA_REGPAIR_LE(p_ramrod->irq_pbl_addr, qp->irq_phys_addr);
1218         qed_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid);
1219         p_ramrod->qp_handle_for_async.hi = cpu_to_le32(qp->qp_handle_async.hi);
1220         p_ramrod->qp_handle_for_async.lo = cpu_to_le32(qp->qp_handle_async.lo);
1221         p_ramrod->qp_handle_for_cqe.hi = cpu_to_le32(qp->qp_handle.hi);
1222         p_ramrod->qp_handle_for_cqe.lo = cpu_to_le32(qp->qp_handle.lo);
1223         p_ramrod->stats_counter_id = p_hwfn->rel_pf_id;
1224         p_ramrod->cq_cid = cpu_to_le32((p_hwfn->hw_info.opaque_fid << 16) |
1225                                        qp->rq_cq_id);
1226
1227         memset(&qm_params, 0, sizeof(qm_params));
1228         qm_params.roce.qpid = qp->icid >> 1;
1229         physical_queue0 = qed_get_qm_pq(p_hwfn, PROTOCOLID_ROCE, &qm_params);
1230
1231         p_ramrod->physical_queue0 = cpu_to_le16(physical_queue0);
1232         p_ramrod->dpi = cpu_to_le16(qp->dpi);
1233
1234         qed_rdma_set_fw_mac(p_ramrod->remote_mac_addr, qp->remote_mac_addr);
1235         qed_rdma_set_fw_mac(p_ramrod->local_mac_addr, qp->local_mac_addr);
1236
1237         p_ramrod->udp_src_port = qp->udp_src_port;
1238         p_ramrod->vlan_id = cpu_to_le16(qp->vlan_id);
1239         p_ramrod->srq_id.srq_idx = cpu_to_le16(qp->srq_id);
1240         p_ramrod->srq_id.opaque_fid = cpu_to_le16(p_hwfn->hw_info.opaque_fid);
1241
1242         p_ramrod->stats_counter_id = RESC_START(p_hwfn, QED_RDMA_STATS_QUEUE) +
1243                                      qp->stats_queue;
1244
1245         rc = qed_spq_post(p_hwfn, p_ent, NULL);
1246
1247         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d physical_queue0 = 0x%x\n",
1248                    rc, physical_queue0);
1249
1250         if (rc)
1251                 goto err;
1252
1253         qp->resp_offloaded = true;
1254
1255         return rc;
1256
1257 err:
1258         DP_NOTICE(p_hwfn, "create responder - failed, rc = %d\n", rc);
1259         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
1260                           qp->irq_num_pages * RDMA_RING_PAGE_SIZE,
1261                           qp->irq, qp->irq_phys_addr);
1262
1263         return rc;
1264 }
1265
1266 static int qed_roce_sp_create_requester(struct qed_hwfn *p_hwfn,
1267                                         struct qed_rdma_qp *qp)
1268 {
1269         struct roce_create_qp_req_ramrod_data *p_ramrod;
1270         struct qed_sp_init_data init_data;
1271         union qed_qm_pq_params qm_params;
1272         enum roce_flavor roce_flavor;
1273         struct qed_spq_entry *p_ent;
1274         u16 physical_queue0 = 0;
1275         int rc;
1276
1277         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
1278
1279         /* Allocate DMA-able memory for ORQ */
1280         qp->orq_num_pages = 1;
1281         qp->orq = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
1282                                      RDMA_RING_PAGE_SIZE,
1283                                      &qp->orq_phys_addr, GFP_KERNEL);
1284         if (!qp->orq) {
1285                 rc = -ENOMEM;
1286                 DP_NOTICE(p_hwfn,
1287                           "qed create requester failed: cannot allocate memory (orq). rc = %d\n",
1288                           rc);
1289                 return rc;
1290         }
1291
1292         /* Get SPQ entry */
1293         memset(&init_data, 0, sizeof(init_data));
1294         init_data.cid = qp->icid + 1;
1295         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
1296         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
1297
1298         rc = qed_sp_init_request(p_hwfn, &p_ent,
1299                                  ROCE_RAMROD_CREATE_QP,
1300                                  PROTOCOLID_ROCE, &init_data);
1301         if (rc)
1302                 goto err;
1303
1304         p_ramrod = &p_ent->ramrod.roce_create_qp_req;
1305
1306         p_ramrod->flags = 0;
1307
1308         roce_flavor = qed_roce_mode_to_flavor(qp->roce_mode);
1309         SET_FIELD(p_ramrod->flags,
1310                   ROCE_CREATE_QP_REQ_RAMROD_DATA_ROCE_FLAVOR, roce_flavor);
1311
1312         SET_FIELD(p_ramrod->flags,
1313                   ROCE_CREATE_QP_REQ_RAMROD_DATA_FMR_AND_RESERVED_EN,
1314                   qp->fmr_and_reserved_lkey);
1315
1316         SET_FIELD(p_ramrod->flags,
1317                   ROCE_CREATE_QP_REQ_RAMROD_DATA_SIGNALED_COMP, qp->signal_all);
1318
1319         SET_FIELD(p_ramrod->flags,
1320                   ROCE_CREATE_QP_REQ_RAMROD_DATA_ERR_RETRY_CNT, qp->retry_cnt);
1321
1322         SET_FIELD(p_ramrod->flags,
1323                   ROCE_CREATE_QP_REQ_RAMROD_DATA_RNR_NAK_CNT,
1324                   qp->rnr_retry_cnt);
1325
1326         p_ramrod->max_ord = qp->max_rd_atomic_req;
1327         p_ramrod->traffic_class = qp->traffic_class_tos;
1328         p_ramrod->hop_limit = qp->hop_limit_ttl;
1329         p_ramrod->orq_num_pages = qp->orq_num_pages;
1330         p_ramrod->p_key = cpu_to_le16(qp->pkey);
1331         p_ramrod->flow_label = cpu_to_le32(qp->flow_label);
1332         p_ramrod->dst_qp_id = cpu_to_le32(qp->dest_qp);
1333         p_ramrod->ack_timeout_val = cpu_to_le32(qp->ack_timeout);
1334         p_ramrod->mtu = cpu_to_le16(qp->mtu);
1335         p_ramrod->initial_psn = cpu_to_le32(qp->sq_psn);
1336         p_ramrod->pd = cpu_to_le16(qp->pd);
1337         p_ramrod->sq_num_pages = cpu_to_le16(qp->sq_num_pages);
1338         DMA_REGPAIR_LE(p_ramrod->sq_pbl_addr, qp->sq_pbl_ptr);
1339         DMA_REGPAIR_LE(p_ramrod->orq_pbl_addr, qp->orq_phys_addr);
1340         qed_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid);
1341         p_ramrod->qp_handle_for_async.hi = cpu_to_le32(qp->qp_handle_async.hi);
1342         p_ramrod->qp_handle_for_async.lo = cpu_to_le32(qp->qp_handle_async.lo);
1343         p_ramrod->qp_handle_for_cqe.hi = cpu_to_le32(qp->qp_handle.hi);
1344         p_ramrod->qp_handle_for_cqe.lo = cpu_to_le32(qp->qp_handle.lo);
1345         p_ramrod->stats_counter_id = p_hwfn->rel_pf_id;
1346         p_ramrod->cq_cid = cpu_to_le32((p_hwfn->hw_info.opaque_fid << 16) |
1347                                        qp->sq_cq_id);
1348
1349         memset(&qm_params, 0, sizeof(qm_params));
1350         qm_params.roce.qpid = qp->icid >> 1;
1351         physical_queue0 = qed_get_qm_pq(p_hwfn, PROTOCOLID_ROCE, &qm_params);
1352
1353         p_ramrod->physical_queue0 = cpu_to_le16(physical_queue0);
1354         p_ramrod->dpi = cpu_to_le16(qp->dpi);
1355
1356         qed_rdma_set_fw_mac(p_ramrod->remote_mac_addr, qp->remote_mac_addr);
1357         qed_rdma_set_fw_mac(p_ramrod->local_mac_addr, qp->local_mac_addr);
1358
1359         p_ramrod->udp_src_port = qp->udp_src_port;
1360         p_ramrod->vlan_id = cpu_to_le16(qp->vlan_id);
1361         p_ramrod->stats_counter_id = RESC_START(p_hwfn, QED_RDMA_STATS_QUEUE) +
1362                                      qp->stats_queue;
1363
1364         rc = qed_spq_post(p_hwfn, p_ent, NULL);
1365
1366         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc);
1367
1368         if (rc)
1369                 goto err;
1370
1371         qp->req_offloaded = true;
1372
1373         return rc;
1374
1375 err:
1376         DP_NOTICE(p_hwfn, "Create requested - failed, rc = %d\n", rc);
1377         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
1378                           qp->orq_num_pages * RDMA_RING_PAGE_SIZE,
1379                           qp->orq, qp->orq_phys_addr);
1380         return rc;
1381 }
1382
1383 static int qed_roce_sp_modify_responder(struct qed_hwfn *p_hwfn,
1384                                         struct qed_rdma_qp *qp,
1385                                         bool move_to_err, u32 modify_flags)
1386 {
1387         struct roce_modify_qp_resp_ramrod_data *p_ramrod;
1388         struct qed_sp_init_data init_data;
1389         struct qed_spq_entry *p_ent;
1390         int rc;
1391
1392         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
1393
1394         if (move_to_err && !qp->resp_offloaded)
1395                 return 0;
1396
1397         /* Get SPQ entry */
1398         memset(&init_data, 0, sizeof(init_data));
1399         init_data.cid = qp->icid;
1400         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
1401         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
1402
1403         rc = qed_sp_init_request(p_hwfn, &p_ent,
1404                                  ROCE_EVENT_MODIFY_QP,
1405                                  PROTOCOLID_ROCE, &init_data);
1406         if (rc) {
1407                 DP_NOTICE(p_hwfn, "rc = %d\n", rc);
1408                 return rc;
1409         }
1410
1411         p_ramrod = &p_ent->ramrod.roce_modify_qp_resp;
1412
1413         p_ramrod->flags = 0;
1414
1415         SET_FIELD(p_ramrod->flags,
1416                   ROCE_MODIFY_QP_RESP_RAMROD_DATA_MOVE_TO_ERR_FLG, move_to_err);
1417
1418         SET_FIELD(p_ramrod->flags,
1419                   ROCE_MODIFY_QP_RESP_RAMROD_DATA_RDMA_RD_EN,
1420                   qp->incoming_rdma_read_en);
1421
1422         SET_FIELD(p_ramrod->flags,
1423                   ROCE_MODIFY_QP_RESP_RAMROD_DATA_RDMA_WR_EN,
1424                   qp->incoming_rdma_write_en);
1425
1426         SET_FIELD(p_ramrod->flags,
1427                   ROCE_MODIFY_QP_RESP_RAMROD_DATA_ATOMIC_EN,
1428                   qp->incoming_atomic_en);
1429
1430         SET_FIELD(p_ramrod->flags,
1431                   ROCE_CREATE_QP_RESP_RAMROD_DATA_E2E_FLOW_CONTROL_EN,
1432                   qp->e2e_flow_control_en);
1433
1434         SET_FIELD(p_ramrod->flags,
1435                   ROCE_MODIFY_QP_RESP_RAMROD_DATA_RDMA_OPS_EN_FLG,
1436                   GET_FIELD(modify_flags,
1437                             QED_RDMA_MODIFY_QP_VALID_RDMA_OPS_EN));
1438
1439         SET_FIELD(p_ramrod->flags,
1440                   ROCE_MODIFY_QP_RESP_RAMROD_DATA_P_KEY_FLG,
1441                   GET_FIELD(modify_flags, QED_ROCE_MODIFY_QP_VALID_PKEY));
1442
1443         SET_FIELD(p_ramrod->flags,
1444                   ROCE_MODIFY_QP_RESP_RAMROD_DATA_ADDRESS_VECTOR_FLG,
1445                   GET_FIELD(modify_flags,
1446                             QED_ROCE_MODIFY_QP_VALID_ADDRESS_VECTOR));
1447
1448         SET_FIELD(p_ramrod->flags,
1449                   ROCE_MODIFY_QP_RESP_RAMROD_DATA_MAX_IRD_FLG,
1450                   GET_FIELD(modify_flags,
1451                             QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_RESP));
1452
1453         SET_FIELD(p_ramrod->flags,
1454                   ROCE_MODIFY_QP_RESP_RAMROD_DATA_MIN_RNR_NAK_TIMER_FLG,
1455                   GET_FIELD(modify_flags,
1456                             QED_ROCE_MODIFY_QP_VALID_MIN_RNR_NAK_TIMER));
1457
1458         p_ramrod->fields = 0;
1459         SET_FIELD(p_ramrod->fields,
1460                   ROCE_MODIFY_QP_RESP_RAMROD_DATA_MIN_RNR_NAK_TIMER,
1461                   qp->min_rnr_nak_timer);
1462
1463         p_ramrod->max_ird = qp->max_rd_atomic_resp;
1464         p_ramrod->traffic_class = qp->traffic_class_tos;
1465         p_ramrod->hop_limit = qp->hop_limit_ttl;
1466         p_ramrod->p_key = cpu_to_le16(qp->pkey);
1467         p_ramrod->flow_label = cpu_to_le32(qp->flow_label);
1468         p_ramrod->mtu = cpu_to_le16(qp->mtu);
1469         qed_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid);
1470         rc = qed_spq_post(p_hwfn, p_ent, NULL);
1471
1472         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Modify responder, rc = %d\n", rc);
1473         return rc;
1474 }
1475
1476 static int qed_roce_sp_modify_requester(struct qed_hwfn *p_hwfn,
1477                                         struct qed_rdma_qp *qp,
1478                                         bool move_to_sqd,
1479                                         bool move_to_err, u32 modify_flags)
1480 {
1481         struct roce_modify_qp_req_ramrod_data *p_ramrod;
1482         struct qed_sp_init_data init_data;
1483         struct qed_spq_entry *p_ent;
1484         int rc;
1485
1486         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
1487
1488         if (move_to_err && !(qp->req_offloaded))
1489                 return 0;
1490
1491         /* Get SPQ entry */
1492         memset(&init_data, 0, sizeof(init_data));
1493         init_data.cid = qp->icid + 1;
1494         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
1495         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
1496
1497         rc = qed_sp_init_request(p_hwfn, &p_ent,
1498                                  ROCE_EVENT_MODIFY_QP,
1499                                  PROTOCOLID_ROCE, &init_data);
1500         if (rc) {
1501                 DP_NOTICE(p_hwfn, "rc = %d\n", rc);
1502                 return rc;
1503         }
1504
1505         p_ramrod = &p_ent->ramrod.roce_modify_qp_req;
1506
1507         p_ramrod->flags = 0;
1508
1509         SET_FIELD(p_ramrod->flags,
1510                   ROCE_MODIFY_QP_REQ_RAMROD_DATA_MOVE_TO_ERR_FLG, move_to_err);
1511
1512         SET_FIELD(p_ramrod->flags,
1513                   ROCE_MODIFY_QP_REQ_RAMROD_DATA_MOVE_TO_SQD_FLG, move_to_sqd);
1514
1515         SET_FIELD(p_ramrod->flags,
1516                   ROCE_MODIFY_QP_REQ_RAMROD_DATA_EN_SQD_ASYNC_NOTIFY,
1517                   qp->sqd_async);
1518
1519         SET_FIELD(p_ramrod->flags,
1520                   ROCE_MODIFY_QP_REQ_RAMROD_DATA_P_KEY_FLG,
1521                   GET_FIELD(modify_flags, QED_ROCE_MODIFY_QP_VALID_PKEY));
1522
1523         SET_FIELD(p_ramrod->flags,
1524                   ROCE_MODIFY_QP_REQ_RAMROD_DATA_ADDRESS_VECTOR_FLG,
1525                   GET_FIELD(modify_flags,
1526                             QED_ROCE_MODIFY_QP_VALID_ADDRESS_VECTOR));
1527
1528         SET_FIELD(p_ramrod->flags,
1529                   ROCE_MODIFY_QP_REQ_RAMROD_DATA_MAX_ORD_FLG,
1530                   GET_FIELD(modify_flags,
1531                             QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_REQ));
1532
1533         SET_FIELD(p_ramrod->flags,
1534                   ROCE_MODIFY_QP_REQ_RAMROD_DATA_RNR_NAK_CNT_FLG,
1535                   GET_FIELD(modify_flags,
1536                             QED_ROCE_MODIFY_QP_VALID_RNR_RETRY_CNT));
1537
1538         SET_FIELD(p_ramrod->flags,
1539                   ROCE_MODIFY_QP_REQ_RAMROD_DATA_ERR_RETRY_CNT_FLG,
1540                   GET_FIELD(modify_flags, QED_ROCE_MODIFY_QP_VALID_RETRY_CNT));
1541
1542         SET_FIELD(p_ramrod->flags,
1543                   ROCE_MODIFY_QP_REQ_RAMROD_DATA_ACK_TIMEOUT_FLG,
1544                   GET_FIELD(modify_flags,
1545                             QED_ROCE_MODIFY_QP_VALID_ACK_TIMEOUT));
1546
1547         p_ramrod->fields = 0;
1548         SET_FIELD(p_ramrod->fields,
1549                   ROCE_MODIFY_QP_REQ_RAMROD_DATA_ERR_RETRY_CNT, qp->retry_cnt);
1550
1551         SET_FIELD(p_ramrod->fields,
1552                   ROCE_MODIFY_QP_REQ_RAMROD_DATA_RNR_NAK_CNT,
1553                   qp->rnr_retry_cnt);
1554
1555         p_ramrod->max_ord = qp->max_rd_atomic_req;
1556         p_ramrod->traffic_class = qp->traffic_class_tos;
1557         p_ramrod->hop_limit = qp->hop_limit_ttl;
1558         p_ramrod->p_key = cpu_to_le16(qp->pkey);
1559         p_ramrod->flow_label = cpu_to_le32(qp->flow_label);
1560         p_ramrod->ack_timeout_val = cpu_to_le32(qp->ack_timeout);
1561         p_ramrod->mtu = cpu_to_le16(qp->mtu);
1562         qed_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid);
1563         rc = qed_spq_post(p_hwfn, p_ent, NULL);
1564
1565         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Modify requester, rc = %d\n", rc);
1566         return rc;
1567 }
1568
1569 static int qed_roce_sp_destroy_qp_responder(struct qed_hwfn *p_hwfn,
1570                                             struct qed_rdma_qp *qp,
1571                                             u32 *num_invalidated_mw)
1572 {
1573         struct roce_destroy_qp_resp_output_params *p_ramrod_res;
1574         struct roce_destroy_qp_resp_ramrod_data *p_ramrod;
1575         struct qed_sp_init_data init_data;
1576         struct qed_spq_entry *p_ent;
1577         dma_addr_t ramrod_res_phys;
1578         int rc;
1579
1580         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
1581
1582         if (!qp->resp_offloaded)
1583                 return 0;
1584
1585         /* Get SPQ entry */
1586         memset(&init_data, 0, sizeof(init_data));
1587         init_data.cid = qp->icid;
1588         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
1589         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
1590
1591         rc = qed_sp_init_request(p_hwfn, &p_ent,
1592                                  ROCE_RAMROD_DESTROY_QP,
1593                                  PROTOCOLID_ROCE, &init_data);
1594         if (rc)
1595                 return rc;
1596
1597         p_ramrod = &p_ent->ramrod.roce_destroy_qp_resp;
1598
1599         p_ramrod_res = (struct roce_destroy_qp_resp_output_params *)
1600             dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_ramrod_res),
1601                                &ramrod_res_phys, GFP_KERNEL);
1602
1603         if (!p_ramrod_res) {
1604                 rc = -ENOMEM;
1605                 DP_NOTICE(p_hwfn,
1606                           "qed destroy responder failed: cannot allocate memory (ramrod). rc = %d\n",
1607                           rc);
1608                 return rc;
1609         }
1610
1611         DMA_REGPAIR_LE(p_ramrod->output_params_addr, ramrod_res_phys);
1612
1613         rc = qed_spq_post(p_hwfn, p_ent, NULL);
1614         if (rc)
1615                 goto err;
1616
1617         *num_invalidated_mw = le32_to_cpu(p_ramrod_res->num_invalidated_mw);
1618
1619         /* Free IRQ - only if ramrod succeeded, in case FW is still using it */
1620         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
1621                           qp->irq_num_pages * RDMA_RING_PAGE_SIZE,
1622                           qp->irq, qp->irq_phys_addr);
1623
1624         qp->resp_offloaded = false;
1625
1626         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Destroy responder, rc = %d\n", rc);
1627
1628 err:
1629         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
1630                           sizeof(struct roce_destroy_qp_resp_output_params),
1631                           p_ramrod_res, ramrod_res_phys);
1632
1633         return rc;
1634 }
1635
1636 static int qed_roce_sp_destroy_qp_requester(struct qed_hwfn *p_hwfn,
1637                                             struct qed_rdma_qp *qp,
1638                                             u32 *num_bound_mw)
1639 {
1640         struct roce_destroy_qp_req_output_params *p_ramrod_res;
1641         struct roce_destroy_qp_req_ramrod_data *p_ramrod;
1642         struct qed_sp_init_data init_data;
1643         struct qed_spq_entry *p_ent;
1644         dma_addr_t ramrod_res_phys;
1645         int rc = -ENOMEM;
1646
1647         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
1648
1649         if (!qp->req_offloaded)
1650                 return 0;
1651
1652         p_ramrod_res = (struct roce_destroy_qp_req_output_params *)
1653                        dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
1654                                           sizeof(*p_ramrod_res),
1655                                           &ramrod_res_phys, GFP_KERNEL);
1656         if (!p_ramrod_res) {
1657                 DP_NOTICE(p_hwfn,
1658                           "qed destroy requester failed: cannot allocate memory (ramrod)\n");
1659                 return rc;
1660         }
1661
1662         /* Get SPQ entry */
1663         memset(&init_data, 0, sizeof(init_data));
1664         init_data.cid = qp->icid + 1;
1665         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
1666         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
1667
1668         rc = qed_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_DESTROY_QP,
1669                                  PROTOCOLID_ROCE, &init_data);
1670         if (rc)
1671                 goto err;
1672
1673         p_ramrod = &p_ent->ramrod.roce_destroy_qp_req;
1674         DMA_REGPAIR_LE(p_ramrod->output_params_addr, ramrod_res_phys);
1675
1676         rc = qed_spq_post(p_hwfn, p_ent, NULL);
1677         if (rc)
1678                 goto err;
1679
1680         *num_bound_mw = le32_to_cpu(p_ramrod_res->num_bound_mw);
1681
1682         /* Free ORQ - only if ramrod succeeded, in case FW is still using it */
1683         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
1684                           qp->orq_num_pages * RDMA_RING_PAGE_SIZE,
1685                           qp->orq, qp->orq_phys_addr);
1686
1687         qp->req_offloaded = false;
1688
1689         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Destroy requester, rc = %d\n", rc);
1690
1691 err:
1692         dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_ramrod_res),
1693                           p_ramrod_res, ramrod_res_phys);
1694
1695         return rc;
1696 }
1697
1698 static int qed_roce_query_qp(struct qed_hwfn *p_hwfn,
1699                              struct qed_rdma_qp *qp,
1700                              struct qed_rdma_query_qp_out_params *out_params)
1701 {
1702         struct roce_query_qp_resp_output_params *p_resp_ramrod_res;
1703         struct roce_query_qp_req_output_params *p_req_ramrod_res;
1704         struct roce_query_qp_resp_ramrod_data *p_resp_ramrod;
1705         struct roce_query_qp_req_ramrod_data *p_req_ramrod;
1706         struct qed_sp_init_data init_data;
1707         dma_addr_t resp_ramrod_res_phys;
1708         dma_addr_t req_ramrod_res_phys;
1709         struct qed_spq_entry *p_ent;
1710         bool rq_err_state;
1711         bool sq_err_state;
1712         bool sq_draining;
1713         int rc = -ENOMEM;
1714
1715         if ((!(qp->resp_offloaded)) && (!(qp->req_offloaded))) {
1716                 /* We can't send ramrod to the fw since this qp wasn't offloaded
1717                  * to the fw yet
1718                  */
1719                 out_params->draining = false;
1720                 out_params->rq_psn = qp->rq_psn;
1721                 out_params->sq_psn = qp->sq_psn;
1722                 out_params->state = qp->cur_state;
1723
1724                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "No QPs as no offload\n");
1725                 return 0;
1726         }
1727
1728         if (!(qp->resp_offloaded)) {
1729                 DP_NOTICE(p_hwfn,
1730                           "The responder's qp should be offloded before requester's\n");
1731                 return -EINVAL;
1732         }
1733
1734         /* Send a query responder ramrod to FW to get RQ-PSN and state */
1735         p_resp_ramrod_res = (struct roce_query_qp_resp_output_params *)
1736             dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
1737                                sizeof(*p_resp_ramrod_res),
1738                                &resp_ramrod_res_phys, GFP_KERNEL);
1739         if (!p_resp_ramrod_res) {
1740                 DP_NOTICE(p_hwfn,
1741                           "qed query qp failed: cannot allocate memory (ramrod)\n");
1742                 return rc;
1743         }
1744
1745         /* Get SPQ entry */
1746         memset(&init_data, 0, sizeof(init_data));
1747         init_data.cid = qp->icid;
1748         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
1749         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
1750         rc = qed_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_QUERY_QP,
1751                                  PROTOCOLID_ROCE, &init_data);
1752         if (rc)
1753                 goto err_resp;
1754
1755         p_resp_ramrod = &p_ent->ramrod.roce_query_qp_resp;
1756         DMA_REGPAIR_LE(p_resp_ramrod->output_params_addr, resp_ramrod_res_phys);
1757
1758         rc = qed_spq_post(p_hwfn, p_ent, NULL);
1759         if (rc)
1760                 goto err_resp;
1761
1762         out_params->rq_psn = le32_to_cpu(p_resp_ramrod_res->psn);
1763         rq_err_state = GET_FIELD(le32_to_cpu(p_resp_ramrod_res->err_flag),
1764                                  ROCE_QUERY_QP_RESP_OUTPUT_PARAMS_ERROR_FLG);
1765
1766         dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_resp_ramrod_res),
1767                           p_resp_ramrod_res, resp_ramrod_res_phys);
1768
1769         if (!(qp->req_offloaded)) {
1770                 /* Don't send query qp for the requester */
1771                 out_params->sq_psn = qp->sq_psn;
1772                 out_params->draining = false;
1773
1774                 if (rq_err_state)
1775                         qp->cur_state = QED_ROCE_QP_STATE_ERR;
1776
1777                 out_params->state = qp->cur_state;
1778
1779                 return 0;
1780         }
1781
1782         /* Send a query requester ramrod to FW to get SQ-PSN and state */
1783         p_req_ramrod_res = (struct roce_query_qp_req_output_params *)
1784                            dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
1785                                               sizeof(*p_req_ramrod_res),
1786                                               &req_ramrod_res_phys,
1787                                               GFP_KERNEL);
1788         if (!p_req_ramrod_res) {
1789                 rc = -ENOMEM;
1790                 DP_NOTICE(p_hwfn,
1791                           "qed query qp failed: cannot allocate memory (ramrod)\n");
1792                 return rc;
1793         }
1794
1795         /* Get SPQ entry */
1796         init_data.cid = qp->icid + 1;
1797         rc = qed_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_QUERY_QP,
1798                                  PROTOCOLID_ROCE, &init_data);
1799         if (rc)
1800                 goto err_req;
1801
1802         p_req_ramrod = &p_ent->ramrod.roce_query_qp_req;
1803         DMA_REGPAIR_LE(p_req_ramrod->output_params_addr, req_ramrod_res_phys);
1804
1805         rc = qed_spq_post(p_hwfn, p_ent, NULL);
1806         if (rc)
1807                 goto err_req;
1808
1809         out_params->sq_psn = le32_to_cpu(p_req_ramrod_res->psn);
1810         sq_err_state = GET_FIELD(le32_to_cpu(p_req_ramrod_res->flags),
1811                                  ROCE_QUERY_QP_REQ_OUTPUT_PARAMS_ERR_FLG);
1812         sq_draining =
1813                 GET_FIELD(le32_to_cpu(p_req_ramrod_res->flags),
1814                           ROCE_QUERY_QP_REQ_OUTPUT_PARAMS_SQ_DRAINING_FLG);
1815
1816         dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_req_ramrod_res),
1817                           p_req_ramrod_res, req_ramrod_res_phys);
1818
1819         out_params->draining = false;
1820
1821         if (rq_err_state)
1822                 qp->cur_state = QED_ROCE_QP_STATE_ERR;
1823         else if (sq_err_state)
1824                 qp->cur_state = QED_ROCE_QP_STATE_SQE;
1825         else if (sq_draining)
1826                 out_params->draining = true;
1827         out_params->state = qp->cur_state;
1828
1829         return 0;
1830
1831 err_req:
1832         dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_req_ramrod_res),
1833                           p_req_ramrod_res, req_ramrod_res_phys);
1834         return rc;
1835 err_resp:
1836         dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_resp_ramrod_res),
1837                           p_resp_ramrod_res, resp_ramrod_res_phys);
1838         return rc;
1839 }
1840
1841 static int qed_roce_destroy_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp)
1842 {
1843         u32 num_invalidated_mw = 0;
1844         u32 num_bound_mw = 0;
1845         u32 start_cid;
1846         int rc;
1847
1848         /* Destroys the specified QP */
1849         if ((qp->cur_state != QED_ROCE_QP_STATE_RESET) &&
1850             (qp->cur_state != QED_ROCE_QP_STATE_ERR) &&
1851             (qp->cur_state != QED_ROCE_QP_STATE_INIT)) {
1852                 DP_NOTICE(p_hwfn,
1853                           "QP must be in error, reset or init state before destroying it\n");
1854                 return -EINVAL;
1855         }
1856
1857         rc = qed_roce_sp_destroy_qp_responder(p_hwfn, qp, &num_invalidated_mw);
1858         if (rc)
1859                 return rc;
1860
1861         /* Send destroy requester ramrod */
1862         rc = qed_roce_sp_destroy_qp_requester(p_hwfn, qp, &num_bound_mw);
1863         if (rc)
1864                 return rc;
1865
1866         if (num_invalidated_mw != num_bound_mw) {
1867                 DP_NOTICE(p_hwfn,
1868                           "number of invalidate memory windows is different from bounded ones\n");
1869                 return -EINVAL;
1870         }
1871
1872         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
1873
1874         start_cid = qed_cxt_get_proto_cid_start(p_hwfn,
1875                                                 p_hwfn->p_rdma_info->proto);
1876
1877         /* Release responder's icid */
1878         qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map,
1879                             qp->icid - start_cid);
1880
1881         /* Release requester's icid */
1882         qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map,
1883                             qp->icid + 1 - start_cid);
1884
1885         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
1886
1887         return 0;
1888 }
1889
1890 static int qed_rdma_query_qp(void *rdma_cxt,
1891                              struct qed_rdma_qp *qp,
1892                              struct qed_rdma_query_qp_out_params *out_params)
1893 {
1894         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
1895         int rc;
1896
1897         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
1898
1899         /* The following fields are filled in from qp and not FW as they can't
1900          * be modified by FW
1901          */
1902         out_params->mtu = qp->mtu;
1903         out_params->dest_qp = qp->dest_qp;
1904         out_params->incoming_atomic_en = qp->incoming_atomic_en;
1905         out_params->e2e_flow_control_en = qp->e2e_flow_control_en;
1906         out_params->incoming_rdma_read_en = qp->incoming_rdma_read_en;
1907         out_params->incoming_rdma_write_en = qp->incoming_rdma_write_en;
1908         out_params->dgid = qp->dgid;
1909         out_params->flow_label = qp->flow_label;
1910         out_params->hop_limit_ttl = qp->hop_limit_ttl;
1911         out_params->traffic_class_tos = qp->traffic_class_tos;
1912         out_params->timeout = qp->ack_timeout;
1913         out_params->rnr_retry = qp->rnr_retry_cnt;
1914         out_params->retry_cnt = qp->retry_cnt;
1915         out_params->min_rnr_nak_timer = qp->min_rnr_nak_timer;
1916         out_params->pkey_index = 0;
1917         out_params->max_rd_atomic = qp->max_rd_atomic_req;
1918         out_params->max_dest_rd_atomic = qp->max_rd_atomic_resp;
1919         out_params->sqd_async = qp->sqd_async;
1920
1921         rc = qed_roce_query_qp(p_hwfn, qp, out_params);
1922
1923         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Query QP, rc = %d\n", rc);
1924         return rc;
1925 }
1926
1927 static int qed_rdma_destroy_qp(void *rdma_cxt, struct qed_rdma_qp *qp)
1928 {
1929         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
1930         int rc = 0;
1931
1932         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
1933
1934         rc = qed_roce_destroy_qp(p_hwfn, qp);
1935
1936         /* free qp params struct */
1937         kfree(qp);
1938
1939         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP destroyed\n");
1940         return rc;
1941 }
1942
1943 static struct qed_rdma_qp *
1944 qed_rdma_create_qp(void *rdma_cxt,
1945                    struct qed_rdma_create_qp_in_params *in_params,
1946                    struct qed_rdma_create_qp_out_params *out_params)
1947 {
1948         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
1949         struct qed_rdma_qp *qp;
1950         u8 max_stats_queues;
1951         int rc;
1952
1953         if (!rdma_cxt || !in_params || !out_params || !p_hwfn->p_rdma_info) {
1954                 DP_ERR(p_hwfn->cdev,
1955                        "qed roce create qp failed due to NULL entry (rdma_cxt=%p, in=%p, out=%p, roce_info=?\n",
1956                        rdma_cxt, in_params, out_params);
1957                 return NULL;
1958         }
1959
1960         DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
1961                    "qed rdma create qp called with qp_handle = %08x%08x\n",
1962                    in_params->qp_handle_hi, in_params->qp_handle_lo);
1963
1964         /* Some sanity checks... */
1965         max_stats_queues = p_hwfn->p_rdma_info->dev->max_stats_queues;
1966         if (in_params->stats_queue >= max_stats_queues) {
1967                 DP_ERR(p_hwfn->cdev,
1968                        "qed rdma create qp failed due to invalid statistics queue %d. maximum is %d\n",
1969                        in_params->stats_queue, max_stats_queues);
1970                 return NULL;
1971         }
1972
1973         qp = kzalloc(sizeof(*qp), GFP_KERNEL);
1974         if (!qp) {
1975                 DP_NOTICE(p_hwfn, "Failed to allocate qed_rdma_qp\n");
1976                 return NULL;
1977         }
1978
1979         rc = qed_roce_alloc_cid(p_hwfn, &qp->icid);
1980         qp->qpid = ((0xFF << 16) | qp->icid);
1981
1982         DP_INFO(p_hwfn, "ROCE qpid=%x\n", qp->qpid);
1983
1984         if (rc) {
1985                 kfree(qp);
1986                 return NULL;
1987         }
1988
1989         qp->cur_state = QED_ROCE_QP_STATE_RESET;
1990         qp->qp_handle.hi = cpu_to_le32(in_params->qp_handle_hi);
1991         qp->qp_handle.lo = cpu_to_le32(in_params->qp_handle_lo);
1992         qp->qp_handle_async.hi = cpu_to_le32(in_params->qp_handle_async_hi);
1993         qp->qp_handle_async.lo = cpu_to_le32(in_params->qp_handle_async_lo);
1994         qp->use_srq = in_params->use_srq;
1995         qp->signal_all = in_params->signal_all;
1996         qp->fmr_and_reserved_lkey = in_params->fmr_and_reserved_lkey;
1997         qp->pd = in_params->pd;
1998         qp->dpi = in_params->dpi;
1999         qp->sq_cq_id = in_params->sq_cq_id;
2000         qp->sq_num_pages = in_params->sq_num_pages;
2001         qp->sq_pbl_ptr = in_params->sq_pbl_ptr;
2002         qp->rq_cq_id = in_params->rq_cq_id;
2003         qp->rq_num_pages = in_params->rq_num_pages;
2004         qp->rq_pbl_ptr = in_params->rq_pbl_ptr;
2005         qp->srq_id = in_params->srq_id;
2006         qp->req_offloaded = false;
2007         qp->resp_offloaded = false;
2008         qp->e2e_flow_control_en = qp->use_srq ? false : true;
2009         qp->stats_queue = in_params->stats_queue;
2010
2011         out_params->icid = qp->icid;
2012         out_params->qp_id = qp->qpid;
2013
2014         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Create QP, rc = %d\n", rc);
2015         return qp;
2016 }
2017
2018 static int qed_roce_modify_qp(struct qed_hwfn *p_hwfn,
2019                               struct qed_rdma_qp *qp,
2020                               enum qed_roce_qp_state prev_state,
2021                               struct qed_rdma_modify_qp_in_params *params)
2022 {
2023         u32 num_invalidated_mw = 0, num_bound_mw = 0;
2024         int rc = 0;
2025
2026         /* Perform additional operations according to the current state and the
2027          * next state
2028          */
2029         if (((prev_state == QED_ROCE_QP_STATE_INIT) ||
2030              (prev_state == QED_ROCE_QP_STATE_RESET)) &&
2031             (qp->cur_state == QED_ROCE_QP_STATE_RTR)) {
2032                 /* Init->RTR or Reset->RTR */
2033                 rc = qed_roce_sp_create_responder(p_hwfn, qp);
2034                 return rc;
2035         } else if ((prev_state == QED_ROCE_QP_STATE_RTR) &&
2036                    (qp->cur_state == QED_ROCE_QP_STATE_RTS)) {
2037                 /* RTR-> RTS */
2038                 rc = qed_roce_sp_create_requester(p_hwfn, qp);
2039                 if (rc)
2040                         return rc;
2041
2042                 /* Send modify responder ramrod */
2043                 rc = qed_roce_sp_modify_responder(p_hwfn, qp, false,
2044                                                   params->modify_flags);
2045                 return rc;
2046         } else if ((prev_state == QED_ROCE_QP_STATE_RTS) &&
2047                    (qp->cur_state == QED_ROCE_QP_STATE_RTS)) {
2048                 /* RTS->RTS */
2049                 rc = qed_roce_sp_modify_responder(p_hwfn, qp, false,
2050                                                   params->modify_flags);
2051                 if (rc)
2052                         return rc;
2053
2054                 rc = qed_roce_sp_modify_requester(p_hwfn, qp, false, false,
2055                                                   params->modify_flags);
2056                 return rc;
2057         } else if ((prev_state == QED_ROCE_QP_STATE_RTS) &&
2058                    (qp->cur_state == QED_ROCE_QP_STATE_SQD)) {
2059                 /* RTS->SQD */
2060                 rc = qed_roce_sp_modify_requester(p_hwfn, qp, true, false,
2061                                                   params->modify_flags);
2062                 return rc;
2063         } else if ((prev_state == QED_ROCE_QP_STATE_SQD) &&
2064                    (qp->cur_state == QED_ROCE_QP_STATE_SQD)) {
2065                 /* SQD->SQD */
2066                 rc = qed_roce_sp_modify_responder(p_hwfn, qp, false,
2067                                                   params->modify_flags);
2068                 if (rc)
2069                         return rc;
2070
2071                 rc = qed_roce_sp_modify_requester(p_hwfn, qp, false, false,
2072                                                   params->modify_flags);
2073                 return rc;
2074         } else if ((prev_state == QED_ROCE_QP_STATE_SQD) &&
2075                    (qp->cur_state == QED_ROCE_QP_STATE_RTS)) {
2076                 /* SQD->RTS */
2077                 rc = qed_roce_sp_modify_responder(p_hwfn, qp, false,
2078                                                   params->modify_flags);
2079                 if (rc)
2080                         return rc;
2081
2082                 rc = qed_roce_sp_modify_requester(p_hwfn, qp, false, false,
2083                                                   params->modify_flags);
2084
2085                 return rc;
2086         } else if (qp->cur_state == QED_ROCE_QP_STATE_ERR ||
2087                    qp->cur_state == QED_ROCE_QP_STATE_SQE) {
2088                 /* ->ERR */
2089                 rc = qed_roce_sp_modify_responder(p_hwfn, qp, true,
2090                                                   params->modify_flags);
2091                 if (rc)
2092                         return rc;
2093
2094                 rc = qed_roce_sp_modify_requester(p_hwfn, qp, false, true,
2095                                                   params->modify_flags);
2096                 return rc;
2097         } else if (qp->cur_state == QED_ROCE_QP_STATE_RESET) {
2098                 /* Any state -> RESET */
2099
2100                 rc = qed_roce_sp_destroy_qp_responder(p_hwfn, qp,
2101                                                       &num_invalidated_mw);
2102                 if (rc)
2103                         return rc;
2104
2105                 rc = qed_roce_sp_destroy_qp_requester(p_hwfn, qp,
2106                                                       &num_bound_mw);
2107
2108                 if (num_invalidated_mw != num_bound_mw) {
2109                         DP_NOTICE(p_hwfn,
2110                                   "number of invalidate memory windows is different from bounded ones\n");
2111                         return -EINVAL;
2112                 }
2113         } else {
2114                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "0\n");
2115         }
2116
2117         return rc;
2118 }
2119
2120 static int qed_rdma_modify_qp(void *rdma_cxt,
2121                               struct qed_rdma_qp *qp,
2122                               struct qed_rdma_modify_qp_in_params *params)
2123 {
2124         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
2125         enum qed_roce_qp_state prev_state;
2126         int rc = 0;
2127
2128         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x params->new_state=%d\n",
2129                    qp->icid, params->new_state);
2130
2131         if (rc) {
2132                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc);
2133                 return rc;
2134         }
2135
2136         if (GET_FIELD(params->modify_flags,
2137                       QED_RDMA_MODIFY_QP_VALID_RDMA_OPS_EN)) {
2138                 qp->incoming_rdma_read_en = params->incoming_rdma_read_en;
2139                 qp->incoming_rdma_write_en = params->incoming_rdma_write_en;
2140                 qp->incoming_atomic_en = params->incoming_atomic_en;
2141         }
2142
2143         /* Update QP structure with the updated values */
2144         if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_ROCE_MODE))
2145                 qp->roce_mode = params->roce_mode;
2146         if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_PKEY))
2147                 qp->pkey = params->pkey;
2148         if (GET_FIELD(params->modify_flags,
2149                       QED_ROCE_MODIFY_QP_VALID_E2E_FLOW_CONTROL_EN))
2150                 qp->e2e_flow_control_en = params->e2e_flow_control_en;
2151         if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_DEST_QP))
2152                 qp->dest_qp = params->dest_qp;
2153         if (GET_FIELD(params->modify_flags,
2154                       QED_ROCE_MODIFY_QP_VALID_ADDRESS_VECTOR)) {
2155                 /* Indicates that the following parameters have changed:
2156                  * Traffic class, flow label, hop limit, source GID,
2157                  * destination GID, loopback indicator
2158                  */
2159                 qp->traffic_class_tos = params->traffic_class_tos;
2160                 qp->flow_label = params->flow_label;
2161                 qp->hop_limit_ttl = params->hop_limit_ttl;
2162
2163                 qp->sgid = params->sgid;
2164                 qp->dgid = params->dgid;
2165                 qp->udp_src_port = 0;
2166                 qp->vlan_id = params->vlan_id;
2167                 qp->mtu = params->mtu;
2168                 qp->lb_indication = params->lb_indication;
2169                 memcpy((u8 *)&qp->remote_mac_addr[0],
2170                        (u8 *)&params->remote_mac_addr[0], ETH_ALEN);
2171                 if (params->use_local_mac) {
2172                         memcpy((u8 *)&qp->local_mac_addr[0],
2173                                (u8 *)&params->local_mac_addr[0], ETH_ALEN);
2174                 } else {
2175                         memcpy((u8 *)&qp->local_mac_addr[0],
2176                                (u8 *)&p_hwfn->hw_info.hw_mac_addr, ETH_ALEN);
2177                 }
2178         }
2179         if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_RQ_PSN))
2180                 qp->rq_psn = params->rq_psn;
2181         if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_SQ_PSN))
2182                 qp->sq_psn = params->sq_psn;
2183         if (GET_FIELD(params->modify_flags,
2184                       QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_REQ))
2185                 qp->max_rd_atomic_req = params->max_rd_atomic_req;
2186         if (GET_FIELD(params->modify_flags,
2187                       QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_RESP))
2188                 qp->max_rd_atomic_resp = params->max_rd_atomic_resp;
2189         if (GET_FIELD(params->modify_flags,
2190                       QED_ROCE_MODIFY_QP_VALID_ACK_TIMEOUT))
2191                 qp->ack_timeout = params->ack_timeout;
2192         if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_RETRY_CNT))
2193                 qp->retry_cnt = params->retry_cnt;
2194         if (GET_FIELD(params->modify_flags,
2195                       QED_ROCE_MODIFY_QP_VALID_RNR_RETRY_CNT))
2196                 qp->rnr_retry_cnt = params->rnr_retry_cnt;
2197         if (GET_FIELD(params->modify_flags,
2198                       QED_ROCE_MODIFY_QP_VALID_MIN_RNR_NAK_TIMER))
2199                 qp->min_rnr_nak_timer = params->min_rnr_nak_timer;
2200
2201         qp->sqd_async = params->sqd_async;
2202
2203         prev_state = qp->cur_state;
2204         if (GET_FIELD(params->modify_flags,
2205                       QED_RDMA_MODIFY_QP_VALID_NEW_STATE)) {
2206                 qp->cur_state = params->new_state;
2207                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "qp->cur_state=%d\n",
2208                            qp->cur_state);
2209         }
2210
2211         rc = qed_roce_modify_qp(p_hwfn, qp, prev_state, params);
2212
2213         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Modify QP, rc = %d\n", rc);
2214         return rc;
2215 }
2216
2217 static int
2218 qed_rdma_register_tid(void *rdma_cxt,
2219                       struct qed_rdma_register_tid_in_params *params)
2220 {
2221         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
2222         struct rdma_register_tid_ramrod_data *p_ramrod;
2223         struct qed_sp_init_data init_data;
2224         struct qed_spq_entry *p_ent;
2225         enum rdma_tid_type tid_type;
2226         u8 fw_return_code;
2227         int rc;
2228
2229         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "itid = %08x\n", params->itid);
2230
2231         /* Get SPQ entry */
2232         memset(&init_data, 0, sizeof(init_data));
2233         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
2234         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
2235
2236         rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_REGISTER_MR,
2237                                  p_hwfn->p_rdma_info->proto, &init_data);
2238         if (rc) {
2239                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc);
2240                 return rc;
2241         }
2242
2243         if (p_hwfn->p_rdma_info->last_tid < params->itid)
2244                 p_hwfn->p_rdma_info->last_tid = params->itid;
2245
2246         p_ramrod = &p_ent->ramrod.rdma_register_tid;
2247
2248         p_ramrod->flags = 0;
2249         SET_FIELD(p_ramrod->flags,
2250                   RDMA_REGISTER_TID_RAMROD_DATA_TWO_LEVEL_PBL,
2251                   params->pbl_two_level);
2252
2253         SET_FIELD(p_ramrod->flags,
2254                   RDMA_REGISTER_TID_RAMROD_DATA_ZERO_BASED, params->zbva);
2255
2256         SET_FIELD(p_ramrod->flags,
2257                   RDMA_REGISTER_TID_RAMROD_DATA_PHY_MR, params->phy_mr);
2258
2259         /* Don't initialize D/C field, as it may override other bits. */
2260         if (!(params->tid_type == QED_RDMA_TID_FMR) && !(params->dma_mr))
2261                 SET_FIELD(p_ramrod->flags,
2262                           RDMA_REGISTER_TID_RAMROD_DATA_PAGE_SIZE_LOG,
2263                           params->page_size_log - 12);
2264
2265         SET_FIELD(p_ramrod->flags,
2266                   RDMA_REGISTER_TID_RAMROD_DATA_MAX_ID,
2267                   p_hwfn->p_rdma_info->last_tid);
2268
2269         SET_FIELD(p_ramrod->flags,
2270                   RDMA_REGISTER_TID_RAMROD_DATA_REMOTE_READ,
2271                   params->remote_read);
2272
2273         SET_FIELD(p_ramrod->flags,
2274                   RDMA_REGISTER_TID_RAMROD_DATA_REMOTE_WRITE,
2275                   params->remote_write);
2276
2277         SET_FIELD(p_ramrod->flags,
2278                   RDMA_REGISTER_TID_RAMROD_DATA_REMOTE_ATOMIC,
2279                   params->remote_atomic);
2280
2281         SET_FIELD(p_ramrod->flags,
2282                   RDMA_REGISTER_TID_RAMROD_DATA_LOCAL_WRITE,
2283                   params->local_write);
2284
2285         SET_FIELD(p_ramrod->flags,
2286                   RDMA_REGISTER_TID_RAMROD_DATA_LOCAL_READ, params->local_read);
2287
2288         SET_FIELD(p_ramrod->flags,
2289                   RDMA_REGISTER_TID_RAMROD_DATA_ENABLE_MW_BIND,
2290                   params->mw_bind);
2291
2292         SET_FIELD(p_ramrod->flags1,
2293                   RDMA_REGISTER_TID_RAMROD_DATA_PBL_PAGE_SIZE_LOG,
2294                   params->pbl_page_size_log - 12);
2295
2296         SET_FIELD(p_ramrod->flags2,
2297                   RDMA_REGISTER_TID_RAMROD_DATA_DMA_MR, params->dma_mr);
2298
2299         switch (params->tid_type) {
2300         case QED_RDMA_TID_REGISTERED_MR:
2301                 tid_type = RDMA_TID_REGISTERED_MR;
2302                 break;
2303         case QED_RDMA_TID_FMR:
2304                 tid_type = RDMA_TID_FMR;
2305                 break;
2306         case QED_RDMA_TID_MW_TYPE1:
2307                 tid_type = RDMA_TID_MW_TYPE1;
2308                 break;
2309         case QED_RDMA_TID_MW_TYPE2A:
2310                 tid_type = RDMA_TID_MW_TYPE2A;
2311                 break;
2312         default:
2313                 rc = -EINVAL;
2314                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc);
2315                 return rc;
2316         }
2317         SET_FIELD(p_ramrod->flags1,
2318                   RDMA_REGISTER_TID_RAMROD_DATA_TID_TYPE, tid_type);
2319
2320         p_ramrod->itid = cpu_to_le32(params->itid);
2321         p_ramrod->key = params->key;
2322         p_ramrod->pd = cpu_to_le16(params->pd);
2323         p_ramrod->length_hi = (u8)(params->length >> 32);
2324         p_ramrod->length_lo = DMA_LO_LE(params->length);
2325         if (params->zbva) {
2326                 /* Lower 32 bits of the registered MR address.
2327                  * In case of zero based MR, will hold FBO
2328                  */
2329                 p_ramrod->va.hi = 0;
2330                 p_ramrod->va.lo = cpu_to_le32(params->fbo);
2331         } else {
2332                 DMA_REGPAIR_LE(p_ramrod->va, params->vaddr);
2333         }
2334         DMA_REGPAIR_LE(p_ramrod->pbl_base, params->pbl_ptr);
2335
2336         /* DIF */
2337         if (params->dif_enabled) {
2338                 SET_FIELD(p_ramrod->flags2,
2339                           RDMA_REGISTER_TID_RAMROD_DATA_DIF_ON_HOST_FLG, 1);
2340                 DMA_REGPAIR_LE(p_ramrod->dif_error_addr,
2341                                params->dif_error_addr);
2342                 DMA_REGPAIR_LE(p_ramrod->dif_runt_addr, params->dif_runt_addr);
2343         }
2344
2345         rc = qed_spq_post(p_hwfn, p_ent, &fw_return_code);
2346
2347         if (fw_return_code != RDMA_RETURN_OK) {
2348                 DP_NOTICE(p_hwfn, "fw_return_code = %d\n", fw_return_code);
2349                 return -EINVAL;
2350         }
2351
2352         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Register TID, rc = %d\n", rc);
2353         return rc;
2354 }
2355
2356 static int qed_rdma_deregister_tid(void *rdma_cxt, u32 itid)
2357 {
2358         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
2359         struct rdma_deregister_tid_ramrod_data *p_ramrod;
2360         struct qed_sp_init_data init_data;
2361         struct qed_spq_entry *p_ent;
2362         struct qed_ptt *p_ptt;
2363         u8 fw_return_code;
2364         int rc;
2365
2366         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "itid = %08x\n", itid);
2367
2368         /* Get SPQ entry */
2369         memset(&init_data, 0, sizeof(init_data));
2370         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
2371         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
2372
2373         rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_DEREGISTER_MR,
2374                                  p_hwfn->p_rdma_info->proto, &init_data);
2375         if (rc) {
2376                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc);
2377                 return rc;
2378         }
2379
2380         p_ramrod = &p_ent->ramrod.rdma_deregister_tid;
2381         p_ramrod->itid = cpu_to_le32(itid);
2382
2383         rc = qed_spq_post(p_hwfn, p_ent, &fw_return_code);
2384         if (rc) {
2385                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc);
2386                 return rc;
2387         }
2388
2389         if (fw_return_code == RDMA_RETURN_DEREGISTER_MR_BAD_STATE_ERR) {
2390                 DP_NOTICE(p_hwfn, "fw_return_code = %d\n", fw_return_code);
2391                 return -EINVAL;
2392         } else if (fw_return_code == RDMA_RETURN_NIG_DRAIN_REQ) {
2393                 /* Bit indicating that the TID is in use and a nig drain is
2394                  * required before sending the ramrod again
2395                  */
2396                 p_ptt = qed_ptt_acquire(p_hwfn);
2397                 if (!p_ptt) {
2398                         rc = -EBUSY;
2399                         DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
2400                                    "Failed to acquire PTT\n");
2401                         return rc;
2402                 }
2403
2404                 rc = qed_mcp_drain(p_hwfn, p_ptt);
2405                 if (rc) {
2406                         qed_ptt_release(p_hwfn, p_ptt);
2407                         DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
2408                                    "Drain failed\n");
2409                         return rc;
2410                 }
2411
2412                 qed_ptt_release(p_hwfn, p_ptt);
2413
2414                 /* Resend the ramrod */
2415                 rc = qed_sp_init_request(p_hwfn, &p_ent,
2416                                          RDMA_RAMROD_DEREGISTER_MR,
2417                                          p_hwfn->p_rdma_info->proto,
2418                                          &init_data);
2419                 if (rc) {
2420                         DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
2421                                    "Failed to init sp-element\n");
2422                         return rc;
2423                 }
2424
2425                 rc = qed_spq_post(p_hwfn, p_ent, &fw_return_code);
2426                 if (rc) {
2427                         DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
2428                                    "Ramrod failed\n");
2429                         return rc;
2430                 }
2431
2432                 if (fw_return_code != RDMA_RETURN_OK) {
2433                         DP_NOTICE(p_hwfn, "fw_return_code = %d\n",
2434                                   fw_return_code);
2435                         return rc;
2436                 }
2437         }
2438
2439         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "De-registered TID, rc = %d\n", rc);
2440         return rc;
2441 }
2442
2443 static void *qed_rdma_get_rdma_ctx(struct qed_dev *cdev)
2444 {
2445         return QED_LEADING_HWFN(cdev);
2446 }
2447
2448 static void qed_rdma_dpm_conf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
2449 {
2450         u32 val;
2451
2452         val = (p_hwfn->dcbx_no_edpm || p_hwfn->db_bar_no_edpm) ? 0 : 1;
2453
2454         qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_DPM_ENABLE, val);
2455         DP_VERBOSE(p_hwfn, (QED_MSG_DCB | QED_MSG_RDMA),
2456                    "Changing DPM_EN state to %d (DCBX=%d, DB_BAR=%d)\n",
2457                    val, p_hwfn->dcbx_no_edpm, p_hwfn->db_bar_no_edpm);
2458 }
2459
2460 void qed_rdma_dpm_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
2461 {
2462         p_hwfn->db_bar_no_edpm = true;
2463
2464         qed_rdma_dpm_conf(p_hwfn, p_ptt);
2465 }
2466
2467 static int qed_rdma_start(void *rdma_cxt,
2468                           struct qed_rdma_start_in_params *params)
2469 {
2470         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
2471         struct qed_ptt *p_ptt;
2472         int rc = -EBUSY;
2473
2474         DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
2475                    "desired_cnq = %08x\n", params->desired_cnq);
2476
2477         p_ptt = qed_ptt_acquire(p_hwfn);
2478         if (!p_ptt)
2479                 goto err;
2480
2481         rc = qed_rdma_alloc(p_hwfn, p_ptt, params);
2482         if (rc)
2483                 goto err1;
2484
2485         rc = qed_rdma_setup(p_hwfn, p_ptt, params);
2486         if (rc)
2487                 goto err2;
2488
2489         qed_ptt_release(p_hwfn, p_ptt);
2490
2491         return rc;
2492
2493 err2:
2494         qed_rdma_free(p_hwfn);
2495 err1:
2496         qed_ptt_release(p_hwfn, p_ptt);
2497 err:
2498         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA start - error, rc = %d\n", rc);
2499         return rc;
2500 }
2501
2502 static int qed_rdma_init(struct qed_dev *cdev,
2503                          struct qed_rdma_start_in_params *params)
2504 {
2505         return qed_rdma_start(QED_LEADING_HWFN(cdev), params);
2506 }
2507
2508 static void qed_rdma_remove_user(void *rdma_cxt, u16 dpi)
2509 {
2510         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
2511
2512         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "dpi = %08x\n", dpi);
2513
2514         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
2515         qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->dpi_map, dpi);
2516         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
2517 }
2518
2519 void qed_ll2b_complete_tx_gsi_packet(struct qed_hwfn *p_hwfn,
2520                                      u8 connection_handle,
2521                                      void *cookie,
2522                                      dma_addr_t first_frag_addr,
2523                                      bool b_last_fragment, bool b_last_packet)
2524 {
2525         struct qed_roce_ll2_packet *packet = cookie;
2526         struct qed_roce_ll2_info *roce_ll2 = p_hwfn->ll2;
2527
2528         roce_ll2->cbs.tx_cb(roce_ll2->cb_cookie, packet);
2529 }
2530
2531 void qed_ll2b_release_tx_gsi_packet(struct qed_hwfn *p_hwfn,
2532                                     u8 connection_handle,
2533                                     void *cookie,
2534                                     dma_addr_t first_frag_addr,
2535                                     bool b_last_fragment, bool b_last_packet)
2536 {
2537         qed_ll2b_complete_tx_gsi_packet(p_hwfn, connection_handle,
2538                                         cookie, first_frag_addr,
2539                                         b_last_fragment, b_last_packet);
2540 }
2541
2542 void qed_ll2b_complete_rx_gsi_packet(struct qed_hwfn *p_hwfn,
2543                                      u8 connection_handle,
2544                                      void *cookie,
2545                                      dma_addr_t rx_buf_addr,
2546                                      u16 data_length,
2547                                      u8 data_length_error,
2548                                      u16 parse_flags,
2549                                      u16 vlan,
2550                                      u32 src_mac_addr_hi,
2551                                      u16 src_mac_addr_lo, bool b_last_packet)
2552 {
2553         struct qed_roce_ll2_info *roce_ll2 = p_hwfn->ll2;
2554         struct qed_roce_ll2_rx_params params;
2555         struct qed_dev *cdev = p_hwfn->cdev;
2556         struct qed_roce_ll2_packet pkt;
2557
2558         DP_VERBOSE(cdev,
2559                    QED_MSG_LL2,
2560                    "roce ll2 rx complete: bus_addr=%p, len=%d, data_len_err=%d\n",
2561                    (void *)(uintptr_t)rx_buf_addr,
2562                    data_length, data_length_error);
2563
2564         memset(&pkt, 0, sizeof(pkt));
2565         pkt.n_seg = 1;
2566         pkt.payload[0].baddr = rx_buf_addr;
2567         pkt.payload[0].len = data_length;
2568
2569         memset(&params, 0, sizeof(params));
2570         params.vlan_id = vlan;
2571         *((u32 *)&params.smac[0]) = ntohl(src_mac_addr_hi);
2572         *((u16 *)&params.smac[4]) = ntohs(src_mac_addr_lo);
2573
2574         if (data_length_error) {
2575                 DP_ERR(cdev,
2576                        "roce ll2 rx complete: data length error %d, length=%d\n",
2577                        data_length_error, data_length);
2578                 params.rc = -EINVAL;
2579         }
2580
2581         roce_ll2->cbs.rx_cb(roce_ll2->cb_cookie, &pkt, &params);
2582 }
2583
2584 static int qed_roce_ll2_set_mac_filter(struct qed_dev *cdev,
2585                                        u8 *old_mac_address,
2586                                        u8 *new_mac_address)
2587 {
2588         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2589         struct qed_ptt *p_ptt;
2590         int rc = 0;
2591
2592         if (!hwfn->ll2 || hwfn->ll2->handle == QED_LL2_UNUSED_HANDLE) {
2593                 DP_ERR(cdev,
2594                        "qed roce mac filter failed - roce_info/ll2 NULL\n");
2595                 return -EINVAL;
2596         }
2597
2598         p_ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev));
2599         if (!p_ptt) {
2600                 DP_ERR(cdev,
2601                        "qed roce ll2 mac filter set: failed to acquire PTT\n");
2602                 return -EINVAL;
2603         }
2604
2605         mutex_lock(&hwfn->ll2->lock);
2606         if (old_mac_address)
2607                 qed_llh_remove_mac_filter(QED_LEADING_HWFN(cdev), p_ptt,
2608                                           old_mac_address);
2609         if (new_mac_address)
2610                 rc = qed_llh_add_mac_filter(QED_LEADING_HWFN(cdev), p_ptt,
2611                                             new_mac_address);
2612         mutex_unlock(&hwfn->ll2->lock);
2613
2614         qed_ptt_release(QED_LEADING_HWFN(cdev), p_ptt);
2615
2616         if (rc)
2617                 DP_ERR(cdev,
2618                        "qed roce ll2 mac filter set: failed to add mac filter\n");
2619
2620         return rc;
2621 }
2622
2623 static int qed_roce_ll2_start(struct qed_dev *cdev,
2624                               struct qed_roce_ll2_params *params)
2625 {
2626         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2627         struct qed_roce_ll2_info *roce_ll2;
2628         struct qed_ll2_info ll2_params;
2629         int rc;
2630
2631         if (!params) {
2632                 DP_ERR(cdev, "qed roce ll2 start: failed due to NULL params\n");
2633                 return -EINVAL;
2634         }
2635         if (!params->cbs.tx_cb || !params->cbs.rx_cb) {
2636                 DP_ERR(cdev,
2637                        "qed roce ll2 start: failed due to NULL tx/rx. tx_cb=%p, rx_cb=%p\n",
2638                        params->cbs.tx_cb, params->cbs.rx_cb);
2639                 return -EINVAL;
2640         }
2641         if (!is_valid_ether_addr(params->mac_address)) {
2642                 DP_ERR(cdev,
2643                        "qed roce ll2 start: failed due to invalid Ethernet address %pM\n",
2644                        params->mac_address);
2645                 return -EINVAL;
2646         }
2647
2648         /* Initialize */
2649         roce_ll2 = kzalloc(sizeof(*roce_ll2), GFP_ATOMIC);
2650         if (!roce_ll2) {
2651                 DP_ERR(cdev, "qed roce ll2 start: failed memory allocation\n");
2652                 return -ENOMEM;
2653         }
2654         memset(roce_ll2, 0, sizeof(*roce_ll2));
2655         roce_ll2->handle = QED_LL2_UNUSED_HANDLE;
2656         roce_ll2->cbs = params->cbs;
2657         roce_ll2->cb_cookie = params->cb_cookie;
2658         mutex_init(&roce_ll2->lock);
2659
2660         memset(&ll2_params, 0, sizeof(ll2_params));
2661         ll2_params.conn_type = QED_LL2_TYPE_ROCE;
2662         ll2_params.mtu = params->mtu;
2663         ll2_params.rx_drop_ttl0_flg = true;
2664         ll2_params.rx_vlan_removal_en = false;
2665         ll2_params.tx_dest = CORE_TX_DEST_NW;
2666         ll2_params.ai_err_packet_too_big = LL2_DROP_PACKET;
2667         ll2_params.ai_err_no_buf = LL2_DROP_PACKET;
2668         ll2_params.gsi_enable = true;
2669
2670         rc = qed_ll2_acquire_connection(QED_LEADING_HWFN(cdev), &ll2_params,
2671                                         params->max_rx_buffers,
2672                                         params->max_tx_buffers,
2673                                         &roce_ll2->handle);
2674         if (rc) {
2675                 DP_ERR(cdev,
2676                        "qed roce ll2 start: failed to acquire LL2 connection (rc=%d)\n",
2677                        rc);
2678                 goto err;
2679         }
2680
2681         rc = qed_ll2_establish_connection(QED_LEADING_HWFN(cdev),
2682                                           roce_ll2->handle);
2683         if (rc) {
2684                 DP_ERR(cdev,
2685                        "qed roce ll2 start: failed to establish LL2 connection (rc=%d)\n",
2686                        rc);
2687                 goto err1;
2688         }
2689
2690         hwfn->ll2 = roce_ll2;
2691
2692         rc = qed_roce_ll2_set_mac_filter(cdev, NULL, params->mac_address);
2693         if (rc) {
2694                 hwfn->ll2 = NULL;
2695                 goto err2;
2696         }
2697         ether_addr_copy(roce_ll2->mac_address, params->mac_address);
2698
2699         return 0;
2700
2701 err2:
2702         qed_ll2_terminate_connection(QED_LEADING_HWFN(cdev), roce_ll2->handle);
2703 err1:
2704         qed_ll2_release_connection(QED_LEADING_HWFN(cdev), roce_ll2->handle);
2705 err:
2706         kfree(roce_ll2);
2707         return rc;
2708 }
2709
2710 static int qed_roce_ll2_stop(struct qed_dev *cdev)
2711 {
2712         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2713         struct qed_roce_ll2_info *roce_ll2 = hwfn->ll2;
2714         int rc;
2715
2716         if (roce_ll2->handle == QED_LL2_UNUSED_HANDLE) {
2717                 DP_ERR(cdev, "qed roce ll2 stop: cannot stop an unused LL2\n");
2718                 return -EINVAL;
2719         }
2720
2721         /* remove LL2 MAC address filter */
2722         rc = qed_roce_ll2_set_mac_filter(cdev, roce_ll2->mac_address, NULL);
2723         eth_zero_addr(roce_ll2->mac_address);
2724
2725         rc = qed_ll2_terminate_connection(QED_LEADING_HWFN(cdev),
2726                                           roce_ll2->handle);
2727         if (rc)
2728                 DP_ERR(cdev,
2729                        "qed roce ll2 stop: failed to terminate LL2 connection (rc=%d)\n",
2730                        rc);
2731
2732         qed_ll2_release_connection(QED_LEADING_HWFN(cdev), roce_ll2->handle);
2733
2734         roce_ll2->handle = QED_LL2_UNUSED_HANDLE;
2735
2736         kfree(roce_ll2);
2737
2738         return rc;
2739 }
2740
2741 static int qed_roce_ll2_tx(struct qed_dev *cdev,
2742                            struct qed_roce_ll2_packet *pkt,
2743                            struct qed_roce_ll2_tx_params *params)
2744 {
2745         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2746         struct qed_roce_ll2_info *roce_ll2 = hwfn->ll2;
2747         enum qed_ll2_roce_flavor_type qed_roce_flavor;
2748         u8 flags = 0;
2749         int rc;
2750         int i;
2751
2752         if (!pkt || !params) {
2753                 DP_ERR(cdev,
2754                        "roce ll2 tx: failed tx because one of the following is NULL - drv=%p, pkt=%p, params=%p\n",
2755                        cdev, pkt, params);
2756                 return -EINVAL;
2757         }
2758
2759         qed_roce_flavor = (pkt->roce_mode == ROCE_V1) ? QED_LL2_ROCE
2760                                                       : QED_LL2_RROCE;
2761
2762         if (pkt->roce_mode == ROCE_V2_IPV4)
2763                 flags |= BIT(CORE_TX_BD_FLAGS_IP_CSUM_SHIFT);
2764
2765         /* Tx header */
2766         rc = qed_ll2_prepare_tx_packet(QED_LEADING_HWFN(cdev), roce_ll2->handle,
2767                                        1 + pkt->n_seg, 0, flags, 0,
2768                                        qed_roce_flavor, pkt->header.baddr,
2769                                        pkt->header.len, pkt, 1);
2770         if (rc) {
2771                 DP_ERR(cdev, "roce ll2 tx: header failed (rc=%d)\n", rc);
2772                 return QED_ROCE_TX_HEAD_FAILURE;
2773         }
2774
2775         /* Tx payload */
2776         for (i = 0; i < pkt->n_seg; i++) {
2777                 rc = qed_ll2_set_fragment_of_tx_packet(QED_LEADING_HWFN(cdev),
2778                                                        roce_ll2->handle,
2779                                                        pkt->payload[i].baddr,
2780                                                        pkt->payload[i].len);
2781                 if (rc) {
2782                         /* If failed not much to do here, partial packet has
2783                          * been posted * we can't free memory, will need to wait
2784                          * for completion
2785                          */
2786                         DP_ERR(cdev,
2787                                "roce ll2 tx: payload failed (rc=%d)\n", rc);
2788                         return QED_ROCE_TX_FRAG_FAILURE;
2789                 }
2790         }
2791
2792         return 0;
2793 }
2794
2795 static int qed_roce_ll2_post_rx_buffer(struct qed_dev *cdev,
2796                                        struct qed_roce_ll2_buffer *buf,
2797                                        u64 cookie, u8 notify_fw)
2798 {
2799         return qed_ll2_post_rx_buffer(QED_LEADING_HWFN(cdev),
2800                                       QED_LEADING_HWFN(cdev)->ll2->handle,
2801                                       buf->baddr, buf->len,
2802                                       (void *)(uintptr_t)cookie, notify_fw);
2803 }
2804
2805 static int qed_roce_ll2_stats(struct qed_dev *cdev, struct qed_ll2_stats *stats)
2806 {
2807         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2808         struct qed_roce_ll2_info *roce_ll2 = hwfn->ll2;
2809
2810         return qed_ll2_get_stats(QED_LEADING_HWFN(cdev),
2811                                  roce_ll2->handle, stats);
2812 }
2813
2814 static const struct qed_rdma_ops qed_rdma_ops_pass = {
2815         .common = &qed_common_ops_pass,
2816         .fill_dev_info = &qed_fill_rdma_dev_info,
2817         .rdma_get_rdma_ctx = &qed_rdma_get_rdma_ctx,
2818         .rdma_init = &qed_rdma_init,
2819         .rdma_add_user = &qed_rdma_add_user,
2820         .rdma_remove_user = &qed_rdma_remove_user,
2821         .rdma_stop = &qed_rdma_stop,
2822         .rdma_query_port = &qed_rdma_query_port,
2823         .rdma_query_device = &qed_rdma_query_device,
2824         .rdma_get_start_sb = &qed_rdma_get_sb_start,
2825         .rdma_get_rdma_int = &qed_rdma_get_int,
2826         .rdma_set_rdma_int = &qed_rdma_set_int,
2827         .rdma_get_min_cnq_msix = &qed_rdma_get_min_cnq_msix,
2828         .rdma_cnq_prod_update = &qed_rdma_cnq_prod_update,
2829         .rdma_alloc_pd = &qed_rdma_alloc_pd,
2830         .rdma_dealloc_pd = &qed_rdma_free_pd,
2831         .rdma_create_cq = &qed_rdma_create_cq,
2832         .rdma_destroy_cq = &qed_rdma_destroy_cq,
2833         .rdma_create_qp = &qed_rdma_create_qp,
2834         .rdma_modify_qp = &qed_rdma_modify_qp,
2835         .rdma_query_qp = &qed_rdma_query_qp,
2836         .rdma_destroy_qp = &qed_rdma_destroy_qp,
2837         .rdma_alloc_tid = &qed_rdma_alloc_tid,
2838         .rdma_free_tid = &qed_rdma_free_tid,
2839         .rdma_register_tid = &qed_rdma_register_tid,
2840         .rdma_deregister_tid = &qed_rdma_deregister_tid,
2841         .roce_ll2_start = &qed_roce_ll2_start,
2842         .roce_ll2_stop = &qed_roce_ll2_stop,
2843         .roce_ll2_tx = &qed_roce_ll2_tx,
2844         .roce_ll2_post_rx_buffer = &qed_roce_ll2_post_rx_buffer,
2845         .roce_ll2_set_mac_filter = &qed_roce_ll2_set_mac_filter,
2846         .roce_ll2_stats = &qed_roce_ll2_stats,
2847 };
2848
2849 const struct qed_rdma_ops *qed_get_rdma_ops(void)
2850 {
2851         return &qed_rdma_ops_pass;
2852 }
2853 EXPORT_SYMBOL(qed_get_rdma_ops);