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

   1 /* QLogic qed NIC Driver
   2  * Copyright (c) 2015-2017  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/io.h>
  39 #include <linux/kernel.h>
  40 #include <linux/list.h>
  41 #include <linux/module.h>
  42 #include <linux/mutex.h>
  43 #include <linux/pci.h>
  44 #include <linux/slab.h>
  45 #include <linux/spinlock.h>
  46 #include <linux/string.h>
  47 #include "qed.h"
  48 #include "qed_cxt.h"
  49 #include "qed_hsi.h"
  50 #include "qed_hw.h"
  51 #include "qed_init_ops.h"
  52 #include "qed_int.h"
  53 #include "qed_ll2.h"
  54 #include "qed_mcp.h"
  55 #include "qed_reg_addr.h"
  56 #include <linux/qed/qed_rdma_if.h>
  57 #include "qed_rdma.h"
  58 #include "qed_roce.h"
  59 #include "qed_sp.h"
  60
  61
  62 int qed_rdma_bmap_alloc(struct qed_hwfn *p_hwfn,
  63                         struct qed_bmap *bmap, u32 max_count, char *name)
  64 {
  65         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "max_count = %08x\n", max_count);
  66
  67         bmap->max_count = max_count;
  68
  69         bmap->bitmap = kcalloc(BITS_TO_LONGS(max_count), sizeof(long),
  70                                GFP_KERNEL);
  71         if (!bmap->bitmap)
  72                 return -ENOMEM;
  73
  74         snprintf(bmap->name, QED_RDMA_MAX_BMAP_NAME, "%s", name);
  75
  76         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "0\n");
  77         return 0;
  78 }
  79
  80 int qed_rdma_bmap_alloc_id(struct qed_hwfn *p_hwfn,
  81                            struct qed_bmap *bmap, u32 *id_num)
  82 {
  83         *id_num = find_first_zero_bit(bmap->bitmap, bmap->max_count);
  84         if (*id_num >= bmap->max_count)
  85                 return -EINVAL;
  86
  87         __set_bit(*id_num, bmap->bitmap);
  88
  89         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "%s bitmap: allocated id %d\n",
  90                    bmap->name, *id_num);
  91
  92         return 0;
  93 }
  94
  95 void qed_bmap_set_id(struct qed_hwfn *p_hwfn,
  96                      struct qed_bmap *bmap, u32 id_num)
  97 {
  98         if (id_num >= bmap->max_count)
  99                 return;
 100
 101         __set_bit(id_num, bmap->bitmap);
 102 }
 103
 104 void qed_bmap_release_id(struct qed_hwfn *p_hwfn,
 105                          struct qed_bmap *bmap, u32 id_num)
 106 {
 107         bool b_acquired;
 108
 109         if (id_num >= bmap->max_count)
 110                 return;
 111
 112         b_acquired = test_and_clear_bit(id_num, bmap->bitmap);
 113         if (!b_acquired) {
 114                 DP_NOTICE(p_hwfn, "%s bitmap: id %d already released\n",
 115                           bmap->name, id_num);
 116                 return;
 117         }
 118
 119         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "%s bitmap: released id %d\n",
 120                    bmap->name, id_num);
 121 }
 122
 123 int qed_bmap_test_id(struct qed_hwfn *p_hwfn,
 124                      struct qed_bmap *bmap, u32 id_num)
 125 {
 126         if (id_num >= bmap->max_count)
 127                 return -1;
 128
 129         return test_bit(id_num, bmap->bitmap);
 130 }
 131
 132 static bool qed_bmap_is_empty(struct qed_bmap *bmap)
 133 {
 134         return bmap->max_count == find_first_bit(bmap->bitmap, bmap->max_count);
 135 }
 136
 137 static u32 qed_rdma_get_sb_id(void *p_hwfn, u32 rel_sb_id)
 138 {
 139         /* First sb id for RoCE is after all the l2 sb */
 140         return FEAT_NUM((struct qed_hwfn *)p_hwfn, QED_PF_L2_QUE) + rel_sb_id;
 141 }
 142
 143 int qed_rdma_info_alloc(struct qed_hwfn *p_hwfn)
 144 {
 145         struct qed_rdma_info *p_rdma_info;
 146
 147         p_rdma_info = kzalloc(sizeof(*p_rdma_info), GFP_KERNEL);
 148         if (!p_rdma_info)
 149                 return -ENOMEM;
 150
 151         spin_lock_init(&p_rdma_info->lock);
 152
 153         p_hwfn->p_rdma_info = p_rdma_info;
 154         return 0;
 155 }
 156
 157 void qed_rdma_info_free(struct qed_hwfn *p_hwfn)
 158 {
 159         kfree(p_hwfn->p_rdma_info);
 160         p_hwfn->p_rdma_info = NULL;
 161 }
 162
 163 static int qed_rdma_alloc(struct qed_hwfn *p_hwfn)
 164 {
 165         struct qed_rdma_info *p_rdma_info = p_hwfn->p_rdma_info;
 166         u32 num_cons, num_tasks;
 167         int rc = -ENOMEM;
 168
 169         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocating RDMA\n");
 170
 171         if (QED_IS_IWARP_PERSONALITY(p_hwfn))
 172                 p_rdma_info->proto = PROTOCOLID_IWARP;
 173         else
 174                 p_rdma_info->proto = PROTOCOLID_ROCE;
 175
 176         num_cons = qed_cxt_get_proto_cid_count(p_hwfn, p_rdma_info->proto,
 177                                                NULL);
 178
 179         if (QED_IS_IWARP_PERSONALITY(p_hwfn))
 180                 p_rdma_info->num_qps = num_cons;
 181         else
 182                 p_rdma_info->num_qps = num_cons / 2; /* 2 cids per qp */
 183
 184         num_tasks = qed_cxt_get_proto_tid_count(p_hwfn, PROTOCOLID_ROCE);
 185
 186         /* Each MR uses a single task */
 187         p_rdma_info->num_mrs = num_tasks;
 188
 189         /* Queue zone lines are shared between RoCE and L2 in such a way that
 190          * they can be used by each without obstructing the other.
 191          */
 192         p_rdma_info->queue_zone_base = (u16)RESC_START(p_hwfn, QED_L2_QUEUE);
 193         p_rdma_info->max_queue_zones = (u16)RESC_NUM(p_hwfn, QED_L2_QUEUE);
 194
 195         /* Allocate a struct with device params and fill it */
 196         p_rdma_info->dev = kzalloc(sizeof(*p_rdma_info->dev), GFP_KERNEL);
 197         if (!p_rdma_info->dev)
 198                 return rc;
 199
 200         /* Allocate a struct with port params and fill it */
 201         p_rdma_info->port = kzalloc(sizeof(*p_rdma_info->port), GFP_KERNEL);
 202         if (!p_rdma_info->port)
 203                 goto free_rdma_dev;
 204
 205         /* Allocate bit map for pd's */
 206         rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->pd_map, RDMA_MAX_PDS,
 207                                  "PD");
 208         if (rc) {
 209                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
 210                            "Failed to allocate pd_map, rc = %d\n",
 211                            rc);
 212                 goto free_rdma_port;
 213         }
 214
 215         /* Allocate DPI bitmap */
 216         rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->dpi_map,
 217                                  p_hwfn->dpi_count, "DPI");
 218         if (rc) {
 219                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
 220                            "Failed to allocate DPI bitmap, rc = %d\n", rc);
 221                 goto free_pd_map;
 222         }
 223
 224         /* Allocate bitmap for cq's. The maximum number of CQs is bound to
 225          * the number of connections we support. (num_qps in iWARP or
 226          * num_qps/2 in RoCE).
 227          */
 228         rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->cq_map, num_cons, "CQ");
 229         if (rc) {
 230                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
 231                            "Failed to allocate cq bitmap, rc = %d\n", rc);
 232                 goto free_dpi_map;
 233         }
 234
 235         /* Allocate bitmap for toggle bit for cq icids
 236          * We toggle the bit every time we create or resize cq for a given icid.
 237          * Size needs to equal the size of the cq bmap.
 238          */
 239         rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->toggle_bits,
 240                                  num_cons, "Toggle");
 241         if (rc) {
 242                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
 243                            "Failed to allocate toggle bits, rc = %d\n", rc);
 244                 goto free_cq_map;
 245         }
 246
 247         /* Allocate bitmap for itids */
 248         rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->tid_map,
 249                                  p_rdma_info->num_mrs, "MR");
 250         if (rc) {
 251                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
 252                            "Failed to allocate itids bitmaps, rc = %d\n", rc);
 253                 goto free_toggle_map;
 254         }
 255
 256         /* Allocate bitmap for cids used for qps. */
 257         rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->cid_map, num_cons,
 258                                  "CID");
 259         if (rc) {
 260                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
 261                            "Failed to allocate cid bitmap, rc = %d\n", rc);
 262                 goto free_tid_map;
 263         }
 264
 265         /* Allocate bitmap for cids used for responders/requesters. */
 266         rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->real_cid_map, num_cons,
 267                                  "REAL_CID");
 268         if (rc) {
 269                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
 270                            "Failed to allocate real cid bitmap, rc = %d\n", rc);
 271                 goto free_cid_map;
 272         }
 273
 274         /* Allocate bitmap for srqs */
 275         p_rdma_info->num_srqs = qed_cxt_get_srq_count(p_hwfn);
 276         rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->srq_map,
 277                                  p_rdma_info->num_srqs, "SRQ");
 278         if (rc) {
 279                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
 280                            "Failed to allocate srq bitmap, rc = %d\n", rc);
 281                 goto free_real_cid_map;
 282         }
 283
 284         if (QED_IS_IWARP_PERSONALITY(p_hwfn))
 285                 rc = qed_iwarp_alloc(p_hwfn);
 286
 287         if (rc)
 288                 goto free_srq_map;
 289
 290         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocation successful\n");
 291         return 0;
 292
 293 free_srq_map:
 294         kfree(p_rdma_info->srq_map.bitmap);
 295 free_real_cid_map:
 296         kfree(p_rdma_info->real_cid_map.bitmap);
 297 free_cid_map:
 298         kfree(p_rdma_info->cid_map.bitmap);
 299 free_tid_map:
 300         kfree(p_rdma_info->tid_map.bitmap);
 301 free_toggle_map:
 302         kfree(p_rdma_info->toggle_bits.bitmap);
 303 free_cq_map:
 304         kfree(p_rdma_info->cq_map.bitmap);
 305 free_dpi_map:
 306         kfree(p_rdma_info->dpi_map.bitmap);
 307 free_pd_map:
 308         kfree(p_rdma_info->pd_map.bitmap);
 309 free_rdma_port:
 310         kfree(p_rdma_info->port);
 311 free_rdma_dev:
 312         kfree(p_rdma_info->dev);
 313
 314         return rc;
 315 }
 316
 317 void qed_rdma_bmap_free(struct qed_hwfn *p_hwfn,
 318                         struct qed_bmap *bmap, bool check)
 319 {
 320         int weight = bitmap_weight(bmap->bitmap, bmap->max_count);
 321         int last_line = bmap->max_count / (64 * 8);
 322         int last_item = last_line * 8 +
 323             DIV_ROUND_UP(bmap->max_count % (64 * 8), 64);
 324         u64 *pmap = (u64 *)bmap->bitmap;
 325         int line, item, offset;
 326         u8 str_last_line[200] = { 0 };
 327
 328         if (!weight || !check)
 329                 goto end;
 330
 331         DP_NOTICE(p_hwfn,
 332                   "%s bitmap not free - size=%d, weight=%d, 512 bits per line\n",
 333                   bmap->name, bmap->max_count, weight);
 334
 335         /* print aligned non-zero lines, if any */
 336         for (item = 0, line = 0; line < last_line; line++, item += 8)
 337                 if (bitmap_weight((unsigned long *)&pmap[item], 64 * 8))
 338                         DP_NOTICE(p_hwfn,
 339                                   "line 0x%04x: 0x%016llx 0x%016llx 0x%016llx 0x%016llx 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
 340                                   line,
 341                                   pmap[item],
 342                                   pmap[item + 1],
 343                                   pmap[item + 2],
 344                                   pmap[item + 3],
 345                                   pmap[item + 4],
 346                                   pmap[item + 5],
 347                                   pmap[item + 6], pmap[item + 7]);
 348
 349         /* print last unaligned non-zero line, if any */
 350         if ((bmap->max_count % (64 * 8)) &&
 351             (bitmap_weight((unsigned long *)&pmap[item],
 352                            bmap->max_count - item * 64))) {
 353                 offset = sprintf(str_last_line, "line 0x%04x: ", line);
 354                 for (; item < last_item; item++)
 355                         offset += sprintf(str_last_line + offset,
 356                                           "0x%016llx ", pmap[item]);
 357                 DP_NOTICE(p_hwfn, "%s\n", str_last_line);
 358         }
 359
 360 end:
 361         kfree(bmap->bitmap);
 362         bmap->bitmap = NULL;
 363 }
 364
 365 static void qed_rdma_resc_free(struct qed_hwfn *p_hwfn)
 366 {
 367         struct qed_rdma_info *p_rdma_info = p_hwfn->p_rdma_info;
 368
 369         if (QED_IS_IWARP_PERSONALITY(p_hwfn))
 370                 qed_iwarp_resc_free(p_hwfn);
 371
 372         qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->cid_map, 1);
 373         qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->pd_map, 1);
 374         qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->dpi_map, 1);
 375         qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->cq_map, 1);
 376         qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->toggle_bits, 0);
 377         qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->tid_map, 1);
 378         qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->srq_map, 1);
 379         qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->real_cid_map, 1);
 380
 381         kfree(p_rdma_info->port);
 382         kfree(p_rdma_info->dev);
 383 }
 384
 385 static void qed_rdma_free_tid(void *rdma_cxt, u32 itid)
 386 {
 387         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 388
 389         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "itid = %08x\n", itid);
 390
 391         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
 392         qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->tid_map, itid);
 393         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
 394 }
 395
 396 static void qed_rdma_free_reserved_lkey(struct qed_hwfn *p_hwfn)
 397 {
 398         qed_rdma_free_tid(p_hwfn, p_hwfn->p_rdma_info->dev->reserved_lkey);
 399 }
 400
 401 static void qed_rdma_free(struct qed_hwfn *p_hwfn)
 402 {
 403         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Freeing RDMA\n");
 404
 405         qed_rdma_free_reserved_lkey(p_hwfn);
 406         qed_cxt_free_proto_ilt(p_hwfn, p_hwfn->p_rdma_info->proto);
 407         qed_rdma_resc_free(p_hwfn);
 408 }
 409
 410 static void qed_rdma_get_guid(struct qed_hwfn *p_hwfn, u8 *guid)
 411 {
 412         guid[0] = p_hwfn->hw_info.hw_mac_addr[0] ^ 2;
 413         guid[1] = p_hwfn->hw_info.hw_mac_addr[1];
 414         guid[2] = p_hwfn->hw_info.hw_mac_addr[2];
 415         guid[3] = 0xff;
 416         guid[4] = 0xfe;
 417         guid[5] = p_hwfn->hw_info.hw_mac_addr[3];
 418         guid[6] = p_hwfn->hw_info.hw_mac_addr[4];
 419         guid[7] = p_hwfn->hw_info.hw_mac_addr[5];
 420 }
 421
 422 static void qed_rdma_init_events(struct qed_hwfn *p_hwfn,
 423                                  struct qed_rdma_start_in_params *params)
 424 {
 425         struct qed_rdma_events *events;
 426
 427         events = &p_hwfn->p_rdma_info->events;
 428
 429         events->unaffiliated_event = params->events->unaffiliated_event;
 430         events->affiliated_event = params->events->affiliated_event;
 431         events->context = params->events->context;
 432 }
 433
 434 static void qed_rdma_init_devinfo(struct qed_hwfn *p_hwfn,
 435                                   struct qed_rdma_start_in_params *params)
 436 {
 437         struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev;
 438         struct qed_dev *cdev = p_hwfn->cdev;
 439         u32 pci_status_control;
 440         u32 num_qps;
 441
 442         /* Vendor specific information */
 443         dev->vendor_id = cdev->vendor_id;
 444         dev->vendor_part_id = cdev->device_id;
 445         dev->hw_ver = cdev->chip_rev;
 446         dev->fw_ver = (FW_MAJOR_VERSION << 24) | (FW_MINOR_VERSION << 16) |
 447                       (FW_REVISION_VERSION << 8) | (FW_ENGINEERING_VERSION);
 448
 449         qed_rdma_get_guid(p_hwfn, (u8 *)&dev->sys_image_guid);
 450         dev->node_guid = dev->sys_image_guid;
 451
 452         dev->max_sge = min_t(u32, RDMA_MAX_SGE_PER_SQ_WQE,
 453                              RDMA_MAX_SGE_PER_RQ_WQE);
 454
 455         if (cdev->rdma_max_sge)
 456                 dev->max_sge = min_t(u32, cdev->rdma_max_sge, dev->max_sge);
 457
 458         dev->max_srq_sge = QED_RDMA_MAX_SGE_PER_SRQ_WQE;
 459         if (p_hwfn->cdev->rdma_max_srq_sge) {
 460                 dev->max_srq_sge = min_t(u32,
 461                                          p_hwfn->cdev->rdma_max_srq_sge,
 462                                          dev->max_srq_sge);
 463         }
 464         dev->max_inline = ROCE_REQ_MAX_INLINE_DATA_SIZE;
 465
 466         dev->max_inline = (cdev->rdma_max_inline) ?
 467                           min_t(u32, cdev->rdma_max_inline, dev->max_inline) :
 468                           dev->max_inline;
 469
 470         dev->max_wqe = QED_RDMA_MAX_WQE;
 471         dev->max_cnq = (u8)FEAT_NUM(p_hwfn, QED_RDMA_CNQ);
 472
 473         /* The number of QPs may be higher than QED_ROCE_MAX_QPS, because
 474          * it is up-aligned to 16 and then to ILT page size within qed cxt.
 475          * This is OK in terms of ILT but we don't want to configure the FW
 476          * above its abilities
 477          */
 478         num_qps = ROCE_MAX_QPS;
 479         num_qps = min_t(u64, num_qps, p_hwfn->p_rdma_info->num_qps);
 480         dev->max_qp = num_qps;
 481
 482         /* CQs uses the same icids that QPs use hence they are limited by the
 483          * number of icids. There are two icids per QP.
 484          */
 485         dev->max_cq = num_qps * 2;
 486
 487         /* The number of mrs is smaller by 1 since the first is reserved */
 488         dev->max_mr = p_hwfn->p_rdma_info->num_mrs - 1;
 489         dev->max_mr_size = QED_RDMA_MAX_MR_SIZE;
 490
 491         /* The maximum CQE capacity per CQ supported.
 492          * max number of cqes will be in two layer pbl,
 493          * 8 is the pointer size in bytes
 494          * 32 is the size of cq element in bytes
 495          */
 496         if (params->cq_mode == QED_RDMA_CQ_MODE_32_BITS)
 497                 dev->max_cqe = QED_RDMA_MAX_CQE_32_BIT;
 498         else
 499                 dev->max_cqe = QED_RDMA_MAX_CQE_16_BIT;
 500
 501         dev->max_mw = 0;
 502         dev->max_fmr = QED_RDMA_MAX_FMR;
 503         dev->max_mr_mw_fmr_pbl = (PAGE_SIZE / 8) * (PAGE_SIZE / 8);
 504         dev->max_mr_mw_fmr_size = dev->max_mr_mw_fmr_pbl * PAGE_SIZE;
 505         dev->max_pkey = QED_RDMA_MAX_P_KEY;
 506
 507         dev->max_srq = p_hwfn->p_rdma_info->num_srqs;
 508         dev->max_srq_wr = QED_RDMA_MAX_SRQ_WQE_ELEM;
 509         dev->max_qp_resp_rd_atomic_resc = RDMA_RING_PAGE_SIZE /
 510                                           (RDMA_RESP_RD_ATOMIC_ELM_SIZE * 2);
 511         dev->max_qp_req_rd_atomic_resc = RDMA_RING_PAGE_SIZE /
 512                                          RDMA_REQ_RD_ATOMIC_ELM_SIZE;
 513         dev->max_dev_resp_rd_atomic_resc = dev->max_qp_resp_rd_atomic_resc *
 514                                            p_hwfn->p_rdma_info->num_qps;
 515         dev->page_size_caps = QED_RDMA_PAGE_SIZE_CAPS;
 516         dev->dev_ack_delay = QED_RDMA_ACK_DELAY;
 517         dev->max_pd = RDMA_MAX_PDS;
 518         dev->max_ah = p_hwfn->p_rdma_info->num_qps;
 519         dev->max_stats_queues = (u8)RESC_NUM(p_hwfn, QED_RDMA_STATS_QUEUE);
 520
 521         /* Set capablities */
 522         dev->dev_caps = 0;
 523         SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_RNR_NAK, 1);
 524         SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_PORT_ACTIVE_EVENT, 1);
 525         SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_PORT_CHANGE_EVENT, 1);
 526         SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_RESIZE_CQ, 1);
 527         SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_BASE_MEMORY_EXT, 1);
 528         SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_BASE_QUEUE_EXT, 1);
 529         SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_ZBVA, 1);
 530         SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_LOCAL_INV_FENCE, 1);
 531
 532         /* Check atomic operations support in PCI configuration space. */
 533         pcie_capability_read_dword(cdev->pdev, PCI_EXP_DEVCTL2,
 534                                    &pci_status_control);
 535
 536         if (pci_status_control & PCI_EXP_DEVCTL2_LTR_EN)
 537                 SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_ATOMIC_OP, 1);
 538
 539         if (QED_IS_IWARP_PERSONALITY(p_hwfn))
 540                 qed_iwarp_init_devinfo(p_hwfn);
 541 }
 542
 543 static void qed_rdma_init_port(struct qed_hwfn *p_hwfn)
 544 {
 545         struct qed_rdma_port *port = p_hwfn->p_rdma_info->port;
 546         struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev;
 547
 548         port->port_state = p_hwfn->mcp_info->link_output.link_up ?
 549                            QED_RDMA_PORT_UP : QED_RDMA_PORT_DOWN;
 550
 551         port->max_msg_size = min_t(u64,
 552                                    (dev->max_mr_mw_fmr_size *
 553                                     p_hwfn->cdev->rdma_max_sge),
 554                                    BIT(31));
 555
 556         port->pkey_bad_counter = 0;
 557 }
 558
 559 static int qed_rdma_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 560 {
 561         int rc = 0;
 562
 563         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Initializing HW\n");
 564         p_hwfn->b_rdma_enabled_in_prs = false;
 565
 566         if (QED_IS_IWARP_PERSONALITY(p_hwfn))
 567                 qed_iwarp_init_hw(p_hwfn, p_ptt);
 568         else
 569                 rc = qed_roce_init_hw(p_hwfn, p_ptt);
 570
 571         return rc;
 572 }
 573
 574 static int qed_rdma_start_fw(struct qed_hwfn *p_hwfn,
 575                              struct qed_rdma_start_in_params *params,
 576                              struct qed_ptt *p_ptt)
 577 {
 578         struct rdma_init_func_ramrod_data *p_ramrod;
 579         struct qed_rdma_cnq_params *p_cnq_pbl_list;
 580         struct rdma_init_func_hdr *p_params_header;
 581         struct rdma_cnq_params *p_cnq_params;
 582         struct qed_sp_init_data init_data;
 583         struct qed_spq_entry *p_ent;
 584         u32 cnq_id, sb_id;
 585         u16 igu_sb_id;
 586         int rc;
 587
 588         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Starting FW\n");
 589
 590         /* Save the number of cnqs for the function close ramrod */
 591         p_hwfn->p_rdma_info->num_cnqs = params->desired_cnq;
 592
 593         /* Get SPQ entry */
 594         memset(&init_data, 0, sizeof(init_data));
 595         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 596         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
 597
 598         rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_FUNC_INIT,
 599                                  p_hwfn->p_rdma_info->proto, &init_data);
 600         if (rc)
 601                 return rc;
 602
 603         if (QED_IS_IWARP_PERSONALITY(p_hwfn)) {
 604                 qed_iwarp_init_fw_ramrod(p_hwfn,
 605                                          &p_ent->ramrod.iwarp_init_func);
 606                 p_ramrod = &p_ent->ramrod.iwarp_init_func.rdma;
 607         } else {
 608                 p_ramrod = &p_ent->ramrod.roce_init_func.rdma;
 609         }
 610
 611         p_params_header = &p_ramrod->params_header;
 612         p_params_header->cnq_start_offset = (u8)RESC_START(p_hwfn,
 613                                                            QED_RDMA_CNQ_RAM);
 614         p_params_header->num_cnqs = params->desired_cnq;
 615
 616         if (params->cq_mode == QED_RDMA_CQ_MODE_16_BITS)
 617                 p_params_header->cq_ring_mode = 1;
 618         else
 619                 p_params_header->cq_ring_mode = 0;
 620
 621         for (cnq_id = 0; cnq_id < params->desired_cnq; cnq_id++) {
 622                 sb_id = qed_rdma_get_sb_id(p_hwfn, cnq_id);
 623                 igu_sb_id = qed_get_igu_sb_id(p_hwfn, sb_id);
 624                 p_ramrod->cnq_params[cnq_id].sb_num = cpu_to_le16(igu_sb_id);
 625                 p_cnq_params = &p_ramrod->cnq_params[cnq_id];
 626                 p_cnq_pbl_list = &params->cnq_pbl_list[cnq_id];
 627
 628                 p_cnq_params->sb_index = p_hwfn->pf_params.rdma_pf_params.gl_pi;
 629                 p_cnq_params->num_pbl_pages = p_cnq_pbl_list->num_pbl_pages;
 630
 631                 DMA_REGPAIR_LE(p_cnq_params->pbl_base_addr,
 632                                p_cnq_pbl_list->pbl_ptr);
 633
 634                 /* we assume here that cnq_id and qz_offset are the same */
 635                 p_cnq_params->queue_zone_num =
 636                         cpu_to_le16(p_hwfn->p_rdma_info->queue_zone_base +
 637                                     cnq_id);
 638         }
 639
 640         return qed_spq_post(p_hwfn, p_ent, NULL);
 641 }
 642
 643 static int qed_rdma_alloc_tid(void *rdma_cxt, u32 *itid)
 644 {
 645         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 646         int rc;
 647
 648         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocate TID\n");
 649
 650         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
 651         rc = qed_rdma_bmap_alloc_id(p_hwfn,
 652                                     &p_hwfn->p_rdma_info->tid_map, itid);
 653         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
 654         if (rc)
 655                 goto out;
 656
 657         rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_TASK, *itid);
 658 out:
 659         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocate TID - done, rc = %d\n", rc);
 660         return rc;
 661 }
 662
 663 static int qed_rdma_reserve_lkey(struct qed_hwfn *p_hwfn)
 664 {
 665         struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev;
 666
 667         /* Tid 0 will be used as the key for "reserved MR".
 668          * The driver should allocate memory for it so it can be loaded but no
 669          * ramrod should be passed on it.
 670          */
 671         qed_rdma_alloc_tid(p_hwfn, &dev->reserved_lkey);
 672         if (dev->reserved_lkey != RDMA_RESERVED_LKEY) {
 673                 DP_NOTICE(p_hwfn,
 674                           "Reserved lkey should be equal to RDMA_RESERVED_LKEY\n");
 675                 return -EINVAL;
 676         }
 677
 678         return 0;
 679 }
 680
 681 static int qed_rdma_setup(struct qed_hwfn *p_hwfn,
 682                           struct qed_ptt *p_ptt,
 683                           struct qed_rdma_start_in_params *params)
 684 {
 685         int rc;
 686
 687         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA setup\n");
 688
 689         qed_rdma_init_devinfo(p_hwfn, params);
 690         qed_rdma_init_port(p_hwfn);
 691         qed_rdma_init_events(p_hwfn, params);
 692
 693         rc = qed_rdma_reserve_lkey(p_hwfn);
 694         if (rc)
 695                 return rc;
 696
 697         rc = qed_rdma_init_hw(p_hwfn, p_ptt);
 698         if (rc)
 699                 return rc;
 700
 701         if (QED_IS_IWARP_PERSONALITY(p_hwfn)) {
 702                 rc = qed_iwarp_setup(p_hwfn, params);
 703                 if (rc)
 704                         return rc;
 705         } else {
 706                 rc = qed_roce_setup(p_hwfn);
 707                 if (rc)
 708                         return rc;
 709         }
 710
 711         return qed_rdma_start_fw(p_hwfn, params, p_ptt);
 712 }
 713
 714 static int qed_rdma_stop(void *rdma_cxt)
 715 {
 716         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 717         struct rdma_close_func_ramrod_data *p_ramrod;
 718         struct qed_sp_init_data init_data;
 719         struct qed_spq_entry *p_ent;
 720         struct qed_ptt *p_ptt;
 721         u32 ll2_ethertype_en;
 722         int rc = -EBUSY;
 723
 724         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA stop\n");
 725
 726         p_ptt = qed_ptt_acquire(p_hwfn);
 727         if (!p_ptt) {
 728                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Failed to acquire PTT\n");
 729                 return rc;
 730         }
 731
 732         /* Disable RoCE search */
 733         qed_wr(p_hwfn, p_ptt, p_hwfn->rdma_prs_search_reg, 0);
 734         p_hwfn->b_rdma_enabled_in_prs = false;
 735         p_hwfn->p_rdma_info->active = 0;
 736         qed_wr(p_hwfn, p_ptt, PRS_REG_ROCE_DEST_QP_MAX_PF, 0);
 737
 738         ll2_ethertype_en = qed_rd(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN);
 739
 740         qed_wr(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN,
 741                (ll2_ethertype_en & 0xFFFE));
 742
 743         if (QED_IS_IWARP_PERSONALITY(p_hwfn)) {
 744                 rc = qed_iwarp_stop(p_hwfn);
 745                 if (rc) {
 746                         qed_ptt_release(p_hwfn, p_ptt);
 747                         return rc;
 748                 }
 749         } else {
 750                 qed_roce_stop(p_hwfn);
 751         }
 752
 753         qed_ptt_release(p_hwfn, p_ptt);
 754
 755         /* Get SPQ entry */
 756         memset(&init_data, 0, sizeof(init_data));
 757         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
 758         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
 759
 760         /* Stop RoCE */
 761         rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_FUNC_CLOSE,
 762                                  p_hwfn->p_rdma_info->proto, &init_data);
 763         if (rc)
 764                 goto out;
 765
 766         p_ramrod = &p_ent->ramrod.rdma_close_func;
 767
 768         p_ramrod->num_cnqs = p_hwfn->p_rdma_info->num_cnqs;
 769         p_ramrod->cnq_start_offset = (u8)RESC_START(p_hwfn, QED_RDMA_CNQ_RAM);
 770
 771         rc = qed_spq_post(p_hwfn, p_ent, NULL);
 772
 773 out:
 774         qed_rdma_free(p_hwfn);
 775
 776         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA stop done, rc = %d\n", rc);
 777         return rc;
 778 }
 779
 780 static int qed_rdma_add_user(void *rdma_cxt,
 781                              struct qed_rdma_add_user_out_params *out_params)
 782 {
 783         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 784         u32 dpi_start_offset;
 785         u32 returned_id = 0;
 786         int rc;
 787
 788         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Adding User\n");
 789
 790         /* Allocate DPI */
 791         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
 792         rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_hwfn->p_rdma_info->dpi_map,
 793                                     &returned_id);
 794         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
 795
 796         out_params->dpi = (u16)returned_id;
 797
 798         /* Calculate the corresponding DPI address */
 799         dpi_start_offset = p_hwfn->dpi_start_offset;
 800
 801         out_params->dpi_addr = p_hwfn->doorbells + dpi_start_offset +
 802                                out_params->dpi * p_hwfn->dpi_size;
 803
 804         out_params->dpi_phys_addr = p_hwfn->db_phys_addr +
 805                                     dpi_start_offset +
 806                                     ((out_params->dpi) * p_hwfn->dpi_size);
 807
 808         out_params->dpi_size = p_hwfn->dpi_size;
 809         out_params->wid_count = p_hwfn->wid_count;
 810
 811         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Adding user - done, rc = %d\n", rc);
 812         return rc;
 813 }
 814
 815 static struct qed_rdma_port *qed_rdma_query_port(void *rdma_cxt)
 816 {
 817         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 818         struct qed_rdma_port *p_port = p_hwfn->p_rdma_info->port;
 819         struct qed_mcp_link_state *p_link_output;
 820
 821         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA Query port\n");
 822
 823         /* The link state is saved only for the leading hwfn */
 824         p_link_output = &QED_LEADING_HWFN(p_hwfn->cdev)->mcp_info->link_output;
 825
 826         p_port->port_state = p_link_output->link_up ? QED_RDMA_PORT_UP
 827             : QED_RDMA_PORT_DOWN;
 828
 829         p_port->link_speed = p_link_output->speed;
 830
 831         p_port->max_msg_size = RDMA_MAX_DATA_SIZE_IN_WQE;
 832
 833         return p_port;
 834 }
 835
 836 static struct qed_rdma_device *qed_rdma_query_device(void *rdma_cxt)
 837 {
 838         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 839
 840         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Query device\n");
 841
 842         /* Return struct with device parameters */
 843         return p_hwfn->p_rdma_info->dev;
 844 }
 845
 846 static void qed_rdma_cnq_prod_update(void *rdma_cxt, u8 qz_offset, u16 prod)
 847 {
 848         struct qed_hwfn *p_hwfn;
 849         u16 qz_num;
 850         u32 addr;
 851
 852         p_hwfn = (struct qed_hwfn *)rdma_cxt;
 853
 854         if (qz_offset > p_hwfn->p_rdma_info->max_queue_zones) {
 855                 DP_NOTICE(p_hwfn,
 856                           "queue zone offset %d is too large (max is %d)\n",
 857                           qz_offset, p_hwfn->p_rdma_info->max_queue_zones);
 858                 return;
 859         }
 860
 861         qz_num = p_hwfn->p_rdma_info->queue_zone_base + qz_offset;
 862         addr = GTT_BAR0_MAP_REG_USDM_RAM +
 863                USTORM_COMMON_QUEUE_CONS_OFFSET(qz_num);
 864
 865         REG_WR16(p_hwfn, addr, prod);
 866
 867         /* keep prod updates ordered */
 868         wmb();
 869 }
 870
 871 static int qed_fill_rdma_dev_info(struct qed_dev *cdev,
 872                                   struct qed_dev_rdma_info *info)
 873 {
 874         struct qed_hwfn *p_hwfn = QED_AFFIN_HWFN(cdev);
 875
 876         memset(info, 0, sizeof(*info));
 877
 878         info->rdma_type = QED_IS_ROCE_PERSONALITY(p_hwfn) ?
 879             QED_RDMA_TYPE_ROCE : QED_RDMA_TYPE_IWARP;
 880
 881         info->user_dpm_enabled = (p_hwfn->db_bar_no_edpm == 0);
 882
 883         qed_fill_dev_info(cdev, &info->common);
 884
 885         return 0;
 886 }
 887
 888 static int qed_rdma_get_sb_start(struct qed_dev *cdev)
 889 {
 890         int feat_num;
 891
 892         if (cdev->num_hwfns > 1)
 893                 feat_num = FEAT_NUM(QED_AFFIN_HWFN(cdev), QED_PF_L2_QUE);
 894         else
 895                 feat_num = FEAT_NUM(QED_AFFIN_HWFN(cdev), QED_PF_L2_QUE) *
 896                            cdev->num_hwfns;
 897
 898         return feat_num;
 899 }
 900
 901 static int qed_rdma_get_min_cnq_msix(struct qed_dev *cdev)
 902 {
 903         int n_cnq = FEAT_NUM(QED_AFFIN_HWFN(cdev), QED_RDMA_CNQ);
 904         int n_msix = cdev->int_params.rdma_msix_cnt;
 905
 906         return min_t(int, n_cnq, n_msix);
 907 }
 908
 909 static int qed_rdma_set_int(struct qed_dev *cdev, u16 cnt)
 910 {
 911         int limit = 0;
 912
 913         /* Mark the fastpath as free/used */
 914         cdev->int_params.fp_initialized = cnt ? true : false;
 915
 916         if (cdev->int_params.out.int_mode != QED_INT_MODE_MSIX) {
 917                 DP_ERR(cdev,
 918                        "qed roce supports only MSI-X interrupts (detected %d).\n",
 919                        cdev->int_params.out.int_mode);
 920                 return -EINVAL;
 921         } else if (cdev->int_params.fp_msix_cnt) {
 922                 limit = cdev->int_params.rdma_msix_cnt;
 923         }
 924
 925         if (!limit)
 926                 return -ENOMEM;
 927
 928         return min_t(int, cnt, limit);
 929 }
 930
 931 static int qed_rdma_get_int(struct qed_dev *cdev, struct qed_int_info *info)
 932 {
 933         memset(info, 0, sizeof(*info));
 934
 935         if (!cdev->int_params.fp_initialized) {
 936                 DP_INFO(cdev,
 937                         "Protocol driver requested interrupt information, but its support is not yet configured\n");
 938                 return -EINVAL;
 939         }
 940
 941         if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) {
 942                 int msix_base = cdev->int_params.rdma_msix_base;
 943
 944                 info->msix_cnt = cdev->int_params.rdma_msix_cnt;
 945                 info->msix = &cdev->int_params.msix_table[msix_base];
 946
 947                 DP_VERBOSE(cdev, QED_MSG_RDMA, "msix_cnt = %d msix_base=%d\n",
 948                            info->msix_cnt, msix_base);
 949         }
 950
 951         return 0;
 952 }
 953
 954 static int qed_rdma_alloc_pd(void *rdma_cxt, u16 *pd)
 955 {
 956         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 957         u32 returned_id;
 958         int rc;
 959
 960         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Alloc PD\n");
 961
 962         /* Allocates an unused protection domain */
 963         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
 964         rc = qed_rdma_bmap_alloc_id(p_hwfn,
 965                                     &p_hwfn->p_rdma_info->pd_map, &returned_id);
 966         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
 967
 968         *pd = (u16)returned_id;
 969
 970         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Alloc PD - done, rc = %d\n", rc);
 971         return rc;
 972 }
 973
 974 static void qed_rdma_free_pd(void *rdma_cxt, u16 pd)
 975 {
 976         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
 977
 978         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "pd = %08x\n", pd);
 979
 980         /* Returns a previously allocated protection domain for reuse */
 981         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
 982         qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->pd_map, pd);
 983         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
 984 }
 985
 986 static enum qed_rdma_toggle_bit
 987 qed_rdma_toggle_bit_create_resize_cq(struct qed_hwfn *p_hwfn, u16 icid)
 988 {
 989         struct qed_rdma_info *p_info = p_hwfn->p_rdma_info;
 990         enum qed_rdma_toggle_bit toggle_bit;
 991         u32 bmap_id;
 992
 993         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", icid);
 994
 995         /* the function toggle the bit that is related to a given icid
 996          * and returns the new toggle bit's value
 997          */
 998         bmap_id = icid - qed_cxt_get_proto_cid_start(p_hwfn, p_info->proto);
 999
1000         spin_lock_bh(&p_info->lock);
1001         toggle_bit = !test_and_change_bit(bmap_id,
1002                                           p_info->toggle_bits.bitmap);
1003         spin_unlock_bh(&p_info->lock);
1004
1005         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QED_RDMA_TOGGLE_BIT_= %d\n",
1006                    toggle_bit);
1007
1008         return toggle_bit;
1009 }
1010
1011 static int qed_rdma_create_cq(void *rdma_cxt,
1012                               struct qed_rdma_create_cq_in_params *params,
1013                               u16 *icid)
1014 {
1015         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
1016         struct qed_rdma_info *p_info = p_hwfn->p_rdma_info;
1017         struct rdma_create_cq_ramrod_data *p_ramrod;
1018         enum qed_rdma_toggle_bit toggle_bit;
1019         struct qed_sp_init_data init_data;
1020         struct qed_spq_entry *p_ent;
1021         u32 returned_id, start_cid;
1022         int rc;
1023
1024         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "cq_handle = %08x%08x\n",
1025                    params->cq_handle_hi, params->cq_handle_lo);
1026
1027         /* Allocate icid */
1028         spin_lock_bh(&p_info->lock);
1029         rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_info->cq_map, &returned_id);
1030         spin_unlock_bh(&p_info->lock);
1031
1032         if (rc) {
1033                 DP_NOTICE(p_hwfn, "Can't create CQ, rc = %d\n", rc);
1034                 return rc;
1035         }
1036
1037         start_cid = qed_cxt_get_proto_cid_start(p_hwfn,
1038                                                 p_info->proto);
1039         *icid = returned_id + start_cid;
1040
1041         /* Check if icid requires a page allocation */
1042         rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, *icid);
1043         if (rc)
1044                 goto err;
1045
1046         /* Get SPQ entry */
1047         memset(&init_data, 0, sizeof(init_data));
1048         init_data.cid = *icid;
1049         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
1050         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
1051
1052         /* Send create CQ ramrod */
1053         rc = qed_sp_init_request(p_hwfn, &p_ent,
1054                                  RDMA_RAMROD_CREATE_CQ,
1055                                  p_info->proto, &init_data);
1056         if (rc)
1057                 goto err;
1058
1059         p_ramrod = &p_ent->ramrod.rdma_create_cq;
1060
1061         p_ramrod->cq_handle.hi = cpu_to_le32(params->cq_handle_hi);
1062         p_ramrod->cq_handle.lo = cpu_to_le32(params->cq_handle_lo);
1063         p_ramrod->dpi = cpu_to_le16(params->dpi);
1064         p_ramrod->is_two_level_pbl = params->pbl_two_level;
1065         p_ramrod->max_cqes = cpu_to_le32(params->cq_size);
1066         DMA_REGPAIR_LE(p_ramrod->pbl_addr, params->pbl_ptr);
1067         p_ramrod->pbl_num_pages = cpu_to_le16(params->pbl_num_pages);
1068         p_ramrod->cnq_id = (u8)RESC_START(p_hwfn, QED_RDMA_CNQ_RAM) +
1069                            params->cnq_id;
1070         p_ramrod->int_timeout = params->int_timeout;
1071
1072         /* toggle the bit for every resize or create cq for a given icid */
1073         toggle_bit = qed_rdma_toggle_bit_create_resize_cq(p_hwfn, *icid);
1074
1075         p_ramrod->toggle_bit = toggle_bit;
1076
1077         rc = qed_spq_post(p_hwfn, p_ent, NULL);
1078         if (rc) {
1079                 /* restore toggle bit */
1080                 qed_rdma_toggle_bit_create_resize_cq(p_hwfn, *icid);
1081                 goto err;
1082         }
1083
1084         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Created CQ, rc = %d\n", rc);
1085         return rc;
1086
1087 err:
1088         /* release allocated icid */
1089         spin_lock_bh(&p_info->lock);
1090         qed_bmap_release_id(p_hwfn, &p_info->cq_map, returned_id);
1091         spin_unlock_bh(&p_info->lock);
1092         DP_NOTICE(p_hwfn, "Create CQ failed, rc = %d\n", rc);
1093
1094         return rc;
1095 }
1096
1097 static int
1098 qed_rdma_destroy_cq(void *rdma_cxt,
1099                     struct qed_rdma_destroy_cq_in_params *in_params,
1100                     struct qed_rdma_destroy_cq_out_params *out_params)
1101 {
1102         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
1103         struct rdma_destroy_cq_output_params *p_ramrod_res;
1104         struct rdma_destroy_cq_ramrod_data *p_ramrod;
1105         struct qed_sp_init_data init_data;
1106         struct qed_spq_entry *p_ent;
1107         dma_addr_t ramrod_res_phys;
1108         enum protocol_type proto;
1109         int rc = -ENOMEM;
1110
1111         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", in_params->icid);
1112
1113         p_ramrod_res =
1114             (struct rdma_destroy_cq_output_params *)
1115             dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
1116                                sizeof(struct rdma_destroy_cq_output_params),
1117                                &ramrod_res_phys, GFP_KERNEL);
1118         if (!p_ramrod_res) {
1119                 DP_NOTICE(p_hwfn,
1120                           "qed destroy cq failed: cannot allocate memory (ramrod)\n");
1121                 return rc;
1122         }
1123
1124         /* Get SPQ entry */
1125         memset(&init_data, 0, sizeof(init_data));
1126         init_data.cid = in_params->icid;
1127         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
1128         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
1129         proto = p_hwfn->p_rdma_info->proto;
1130         /* Send destroy CQ ramrod */
1131         rc = qed_sp_init_request(p_hwfn, &p_ent,
1132                                  RDMA_RAMROD_DESTROY_CQ,
1133                                  proto, &init_data);
1134         if (rc)
1135                 goto err;
1136
1137         p_ramrod = &p_ent->ramrod.rdma_destroy_cq;
1138         DMA_REGPAIR_LE(p_ramrod->output_params_addr, ramrod_res_phys);
1139
1140         rc = qed_spq_post(p_hwfn, p_ent, NULL);
1141         if (rc)
1142                 goto err;
1143
1144         out_params->num_cq_notif = le16_to_cpu(p_ramrod_res->cnq_num);
1145
1146         dma_free_coherent(&p_hwfn->cdev->pdev->dev,
1147                           sizeof(struct rdma_destroy_cq_output_params),
1148                           p_ramrod_res, ramrod_res_phys);
1149
1150         /* Free icid */
1151         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
1152
1153         qed_bmap_release_id(p_hwfn,
1154                             &p_hwfn->p_rdma_info->cq_map,
1155                             (in_params->icid -
1156                              qed_cxt_get_proto_cid_start(p_hwfn, proto)));
1157
1158         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
1159
1160         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Destroyed CQ, rc = %d\n", rc);
1161         return rc;
1162
1163 err:    dma_free_coherent(&p_hwfn->cdev->pdev->dev,
1164                           sizeof(struct rdma_destroy_cq_output_params),
1165                           p_ramrod_res, ramrod_res_phys);
1166
1167         return rc;
1168 }
1169
1170 void qed_rdma_set_fw_mac(u16 *p_fw_mac, u8 *p_qed_mac)
1171 {
1172         p_fw_mac[0] = cpu_to_le16((p_qed_mac[0] << 8) + p_qed_mac[1]);
1173         p_fw_mac[1] = cpu_to_le16((p_qed_mac[2] << 8) + p_qed_mac[3]);
1174         p_fw_mac[2] = cpu_to_le16((p_qed_mac[4] << 8) + p_qed_mac[5]);
1175 }
1176
1177 static int qed_rdma_query_qp(void *rdma_cxt,
1178                              struct qed_rdma_qp *qp,
1179                              struct qed_rdma_query_qp_out_params *out_params)
1180 {
1181         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
1182         int rc = 0;
1183
1184         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
1185
1186         /* The following fields are filled in from qp and not FW as they can't
1187          * be modified by FW
1188          */
1189         out_params->mtu = qp->mtu;
1190         out_params->dest_qp = qp->dest_qp;
1191         out_params->incoming_atomic_en = qp->incoming_atomic_en;
1192         out_params->e2e_flow_control_en = qp->e2e_flow_control_en;
1193         out_params->incoming_rdma_read_en = qp->incoming_rdma_read_en;
1194         out_params->incoming_rdma_write_en = qp->incoming_rdma_write_en;
1195         out_params->dgid = qp->dgid;
1196         out_params->flow_label = qp->flow_label;
1197         out_params->hop_limit_ttl = qp->hop_limit_ttl;
1198         out_params->traffic_class_tos = qp->traffic_class_tos;
1199         out_params->timeout = qp->ack_timeout;
1200         out_params->rnr_retry = qp->rnr_retry_cnt;
1201         out_params->retry_cnt = qp->retry_cnt;
1202         out_params->min_rnr_nak_timer = qp->min_rnr_nak_timer;
1203         out_params->pkey_index = 0;
1204         out_params->max_rd_atomic = qp->max_rd_atomic_req;
1205         out_params->max_dest_rd_atomic = qp->max_rd_atomic_resp;
1206         out_params->sqd_async = qp->sqd_async;
1207
1208         if (QED_IS_IWARP_PERSONALITY(p_hwfn))
1209                 qed_iwarp_query_qp(qp, out_params);
1210         else
1211                 rc = qed_roce_query_qp(p_hwfn, qp, out_params);
1212
1213         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Query QP, rc = %d\n", rc);
1214         return rc;
1215 }
1216
1217 static int qed_rdma_destroy_qp(void *rdma_cxt, struct qed_rdma_qp *qp)
1218 {
1219         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
1220         int rc = 0;
1221
1222         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid);
1223
1224         if (QED_IS_IWARP_PERSONALITY(p_hwfn))
1225                 rc = qed_iwarp_destroy_qp(p_hwfn, qp);
1226         else
1227                 rc = qed_roce_destroy_qp(p_hwfn, qp);
1228
1229         /* free qp params struct */
1230         kfree(qp);
1231
1232         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP destroyed\n");
1233         return rc;
1234 }
1235
1236 static struct qed_rdma_qp *
1237 qed_rdma_create_qp(void *rdma_cxt,
1238                    struct qed_rdma_create_qp_in_params *in_params,
1239                    struct qed_rdma_create_qp_out_params *out_params)
1240 {
1241         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
1242         struct qed_rdma_qp *qp;
1243         u8 max_stats_queues;
1244         int rc;
1245
1246         if (!rdma_cxt || !in_params || !out_params ||
1247             !p_hwfn->p_rdma_info->active) {
1248                 DP_ERR(p_hwfn->cdev,
1249                        "qed roce create qp failed due to NULL entry (rdma_cxt=%p, in=%p, out=%p, roce_info=?\n",
1250                        rdma_cxt, in_params, out_params);
1251                 return NULL;
1252         }
1253
1254         DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
1255                    "qed rdma create qp called with qp_handle = %08x%08x\n",
1256                    in_params->qp_handle_hi, in_params->qp_handle_lo);
1257
1258         /* Some sanity checks... */
1259         max_stats_queues = p_hwfn->p_rdma_info->dev->max_stats_queues;
1260         if (in_params->stats_queue >= max_stats_queues) {
1261                 DP_ERR(p_hwfn->cdev,
1262                        "qed rdma create qp failed due to invalid statistics queue %d. maximum is %d\n",
1263                        in_params->stats_queue, max_stats_queues);
1264                 return NULL;
1265         }
1266
1267         if (QED_IS_IWARP_PERSONALITY(p_hwfn)) {
1268                 if (in_params->sq_num_pages * sizeof(struct regpair) >
1269                     IWARP_SHARED_QUEUE_PAGE_SQ_PBL_MAX_SIZE) {
1270                         DP_NOTICE(p_hwfn->cdev,
1271                                   "Sq num pages: %d exceeds maximum\n",
1272                                   in_params->sq_num_pages);
1273                         return NULL;
1274                 }
1275                 if (in_params->rq_num_pages * sizeof(struct regpair) >
1276                     IWARP_SHARED_QUEUE_PAGE_RQ_PBL_MAX_SIZE) {
1277                         DP_NOTICE(p_hwfn->cdev,
1278                                   "Rq num pages: %d exceeds maximum\n",
1279                                   in_params->rq_num_pages);
1280                         return NULL;
1281                 }
1282         }
1283
1284         qp = kzalloc(sizeof(*qp), GFP_KERNEL);
1285         if (!qp)
1286                 return NULL;
1287
1288         qp->cur_state = QED_ROCE_QP_STATE_RESET;
1289         qp->qp_handle.hi = cpu_to_le32(in_params->qp_handle_hi);
1290         qp->qp_handle.lo = cpu_to_le32(in_params->qp_handle_lo);
1291         qp->qp_handle_async.hi = cpu_to_le32(in_params->qp_handle_async_hi);
1292         qp->qp_handle_async.lo = cpu_to_le32(in_params->qp_handle_async_lo);
1293         qp->use_srq = in_params->use_srq;
1294         qp->signal_all = in_params->signal_all;
1295         qp->fmr_and_reserved_lkey = in_params->fmr_and_reserved_lkey;
1296         qp->pd = in_params->pd;
1297         qp->dpi = in_params->dpi;
1298         qp->sq_cq_id = in_params->sq_cq_id;
1299         qp->sq_num_pages = in_params->sq_num_pages;
1300         qp->sq_pbl_ptr = in_params->sq_pbl_ptr;
1301         qp->rq_cq_id = in_params->rq_cq_id;
1302         qp->rq_num_pages = in_params->rq_num_pages;
1303         qp->rq_pbl_ptr = in_params->rq_pbl_ptr;
1304         qp->srq_id = in_params->srq_id;
1305         qp->req_offloaded = false;
1306         qp->resp_offloaded = false;
1307         qp->e2e_flow_control_en = qp->use_srq ? false : true;
1308         qp->stats_queue = in_params->stats_queue;
1309
1310         if (QED_IS_IWARP_PERSONALITY(p_hwfn)) {
1311                 rc = qed_iwarp_create_qp(p_hwfn, qp, out_params);
1312                 qp->qpid = qp->icid;
1313         } else {
1314                 rc = qed_roce_alloc_cid(p_hwfn, &qp->icid);
1315                 qp->qpid = ((0xFF << 16) | qp->icid);
1316         }
1317
1318         if (rc) {
1319                 kfree(qp);
1320                 return NULL;
1321         }
1322
1323         out_params->icid = qp->icid;
1324         out_params->qp_id = qp->qpid;
1325
1326         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Create QP, rc = %d\n", rc);
1327         return qp;
1328 }
1329
1330 static int qed_rdma_modify_qp(void *rdma_cxt,
1331                               struct qed_rdma_qp *qp,
1332                               struct qed_rdma_modify_qp_in_params *params)
1333 {
1334         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
1335         enum qed_roce_qp_state prev_state;
1336         int rc = 0;
1337
1338         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x params->new_state=%d\n",
1339                    qp->icid, params->new_state);
1340
1341         if (rc) {
1342                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc);
1343                 return rc;
1344         }
1345
1346         if (GET_FIELD(params->modify_flags,
1347                       QED_RDMA_MODIFY_QP_VALID_RDMA_OPS_EN)) {
1348                 qp->incoming_rdma_read_en = params->incoming_rdma_read_en;
1349                 qp->incoming_rdma_write_en = params->incoming_rdma_write_en;
1350                 qp->incoming_atomic_en = params->incoming_atomic_en;
1351         }
1352
1353         /* Update QP structure with the updated values */
1354         if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_ROCE_MODE))
1355                 qp->roce_mode = params->roce_mode;
1356         if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_PKEY))
1357                 qp->pkey = params->pkey;
1358         if (GET_FIELD(params->modify_flags,
1359                       QED_ROCE_MODIFY_QP_VALID_E2E_FLOW_CONTROL_EN))
1360                 qp->e2e_flow_control_en = params->e2e_flow_control_en;
1361         if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_DEST_QP))
1362                 qp->dest_qp = params->dest_qp;
1363         if (GET_FIELD(params->modify_flags,
1364                       QED_ROCE_MODIFY_QP_VALID_ADDRESS_VECTOR)) {
1365                 /* Indicates that the following parameters have changed:
1366                  * Traffic class, flow label, hop limit, source GID,
1367                  * destination GID, loopback indicator
1368                  */
1369                 qp->traffic_class_tos = params->traffic_class_tos;
1370                 qp->flow_label = params->flow_label;
1371                 qp->hop_limit_ttl = params->hop_limit_ttl;
1372
1373                 qp->sgid = params->sgid;
1374                 qp->dgid = params->dgid;
1375                 qp->udp_src_port = 0;
1376                 qp->vlan_id = params->vlan_id;
1377                 qp->mtu = params->mtu;
1378                 qp->lb_indication = params->lb_indication;
1379                 memcpy((u8 *)&qp->remote_mac_addr[0],
1380                        (u8 *)&params->remote_mac_addr[0], ETH_ALEN);
1381                 if (params->use_local_mac) {
1382                         memcpy((u8 *)&qp->local_mac_addr[0],
1383                                (u8 *)&params->local_mac_addr[0], ETH_ALEN);
1384                 } else {
1385                         memcpy((u8 *)&qp->local_mac_addr[0],
1386                                (u8 *)&p_hwfn->hw_info.hw_mac_addr, ETH_ALEN);
1387                 }
1388         }
1389         if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_RQ_PSN))
1390                 qp->rq_psn = params->rq_psn;
1391         if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_SQ_PSN))
1392                 qp->sq_psn = params->sq_psn;
1393         if (GET_FIELD(params->modify_flags,
1394                       QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_REQ))
1395                 qp->max_rd_atomic_req = params->max_rd_atomic_req;
1396         if (GET_FIELD(params->modify_flags,
1397                       QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_RESP))
1398                 qp->max_rd_atomic_resp = params->max_rd_atomic_resp;
1399         if (GET_FIELD(params->modify_flags,
1400                       QED_ROCE_MODIFY_QP_VALID_ACK_TIMEOUT))
1401                 qp->ack_timeout = params->ack_timeout;
1402         if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_RETRY_CNT))
1403                 qp->retry_cnt = params->retry_cnt;
1404         if (GET_FIELD(params->modify_flags,
1405                       QED_ROCE_MODIFY_QP_VALID_RNR_RETRY_CNT))
1406                 qp->rnr_retry_cnt = params->rnr_retry_cnt;
1407         if (GET_FIELD(params->modify_flags,
1408                       QED_ROCE_MODIFY_QP_VALID_MIN_RNR_NAK_TIMER))
1409                 qp->min_rnr_nak_timer = params->min_rnr_nak_timer;
1410
1411         qp->sqd_async = params->sqd_async;
1412
1413         prev_state = qp->cur_state;
1414         if (GET_FIELD(params->modify_flags,
1415                       QED_RDMA_MODIFY_QP_VALID_NEW_STATE)) {
1416                 qp->cur_state = params->new_state;
1417                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "qp->cur_state=%d\n",
1418                            qp->cur_state);
1419         }
1420
1421         if (QED_IS_IWARP_PERSONALITY(p_hwfn)) {
1422                 enum qed_iwarp_qp_state new_state =
1423                     qed_roce2iwarp_state(qp->cur_state);
1424
1425                 rc = qed_iwarp_modify_qp(p_hwfn, qp, new_state, 0);
1426         } else {
1427                 rc = qed_roce_modify_qp(p_hwfn, qp, prev_state, params);
1428         }
1429
1430         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Modify QP, rc = %d\n", rc);
1431         return rc;
1432 }
1433
1434 static int
1435 qed_rdma_register_tid(void *rdma_cxt,
1436                       struct qed_rdma_register_tid_in_params *params)
1437 {
1438         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
1439         struct rdma_register_tid_ramrod_data *p_ramrod;
1440         struct qed_sp_init_data init_data;
1441         struct qed_spq_entry *p_ent;
1442         enum rdma_tid_type tid_type;
1443         u8 fw_return_code;
1444         int rc;
1445
1446         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "itid = %08x\n", params->itid);
1447
1448         /* Get SPQ entry */
1449         memset(&init_data, 0, sizeof(init_data));
1450         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
1451         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
1452
1453         rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_REGISTER_MR,
1454                                  p_hwfn->p_rdma_info->proto, &init_data);
1455         if (rc) {
1456                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc);
1457                 return rc;
1458         }
1459
1460         if (p_hwfn->p_rdma_info->last_tid < params->itid)
1461                 p_hwfn->p_rdma_info->last_tid = params->itid;
1462
1463         p_ramrod = &p_ent->ramrod.rdma_register_tid;
1464
1465         p_ramrod->flags = 0;
1466         SET_FIELD(p_ramrod->flags,
1467                   RDMA_REGISTER_TID_RAMROD_DATA_TWO_LEVEL_PBL,
1468                   params->pbl_two_level);
1469
1470         SET_FIELD(p_ramrod->flags,
1471                   RDMA_REGISTER_TID_RAMROD_DATA_ZERO_BASED, params->zbva);
1472
1473         SET_FIELD(p_ramrod->flags,
1474                   RDMA_REGISTER_TID_RAMROD_DATA_PHY_MR, params->phy_mr);
1475
1476         /* Don't initialize D/C field, as it may override other bits. */
1477         if (!(params->tid_type == QED_RDMA_TID_FMR) && !(params->dma_mr))
1478                 SET_FIELD(p_ramrod->flags,
1479                           RDMA_REGISTER_TID_RAMROD_DATA_PAGE_SIZE_LOG,
1480                           params->page_size_log - 12);
1481
1482         SET_FIELD(p_ramrod->flags,
1483                   RDMA_REGISTER_TID_RAMROD_DATA_REMOTE_READ,
1484                   params->remote_read);
1485
1486         SET_FIELD(p_ramrod->flags,
1487                   RDMA_REGISTER_TID_RAMROD_DATA_REMOTE_WRITE,
1488                   params->remote_write);
1489
1490         SET_FIELD(p_ramrod->flags,
1491                   RDMA_REGISTER_TID_RAMROD_DATA_REMOTE_ATOMIC,
1492                   params->remote_atomic);
1493
1494         SET_FIELD(p_ramrod->flags,
1495                   RDMA_REGISTER_TID_RAMROD_DATA_LOCAL_WRITE,
1496                   params->local_write);
1497
1498         SET_FIELD(p_ramrod->flags,
1499                   RDMA_REGISTER_TID_RAMROD_DATA_LOCAL_READ, params->local_read);
1500
1501         SET_FIELD(p_ramrod->flags,
1502                   RDMA_REGISTER_TID_RAMROD_DATA_ENABLE_MW_BIND,
1503                   params->mw_bind);
1504
1505         SET_FIELD(p_ramrod->flags1,
1506                   RDMA_REGISTER_TID_RAMROD_DATA_PBL_PAGE_SIZE_LOG,
1507                   params->pbl_page_size_log - 12);
1508
1509         SET_FIELD(p_ramrod->flags2,
1510                   RDMA_REGISTER_TID_RAMROD_DATA_DMA_MR, params->dma_mr);
1511
1512         switch (params->tid_type) {
1513         case QED_RDMA_TID_REGISTERED_MR:
1514                 tid_type = RDMA_TID_REGISTERED_MR;
1515                 break;
1516         case QED_RDMA_TID_FMR:
1517                 tid_type = RDMA_TID_FMR;
1518                 break;
1519         case QED_RDMA_TID_MW:
1520                 tid_type = RDMA_TID_MW;
1521                 break;
1522         default:
1523                 rc = -EINVAL;
1524                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc);
1525                 qed_sp_destroy_request(p_hwfn, p_ent);
1526                 return rc;
1527         }
1528         SET_FIELD(p_ramrod->flags1,
1529                   RDMA_REGISTER_TID_RAMROD_DATA_TID_TYPE, tid_type);
1530
1531         p_ramrod->itid = cpu_to_le32(params->itid);
1532         p_ramrod->key = params->key;
1533         p_ramrod->pd = cpu_to_le16(params->pd);
1534         p_ramrod->length_hi = (u8)(params->length >> 32);
1535         p_ramrod->length_lo = DMA_LO_LE(params->length);
1536         if (params->zbva) {
1537                 /* Lower 32 bits of the registered MR address.
1538                  * In case of zero based MR, will hold FBO
1539                  */
1540                 p_ramrod->va.hi = 0;
1541                 p_ramrod->va.lo = cpu_to_le32(params->fbo);
1542         } else {
1543                 DMA_REGPAIR_LE(p_ramrod->va, params->vaddr);
1544         }
1545         DMA_REGPAIR_LE(p_ramrod->pbl_base, params->pbl_ptr);
1546
1547         /* DIF */
1548         if (params->dif_enabled) {
1549                 SET_FIELD(p_ramrod->flags2,
1550                           RDMA_REGISTER_TID_RAMROD_DATA_DIF_ON_HOST_FLG, 1);
1551                 DMA_REGPAIR_LE(p_ramrod->dif_error_addr,
1552                                params->dif_error_addr);
1553         }
1554
1555         rc = qed_spq_post(p_hwfn, p_ent, &fw_return_code);
1556         if (rc)
1557                 return rc;
1558
1559         if (fw_return_code != RDMA_RETURN_OK) {
1560                 DP_NOTICE(p_hwfn, "fw_return_code = %d\n", fw_return_code);
1561                 return -EINVAL;
1562         }
1563
1564         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Register TID, rc = %d\n", rc);
1565         return rc;
1566 }
1567
1568 static int qed_rdma_deregister_tid(void *rdma_cxt, u32 itid)
1569 {
1570         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
1571         struct rdma_deregister_tid_ramrod_data *p_ramrod;
1572         struct qed_sp_init_data init_data;
1573         struct qed_spq_entry *p_ent;
1574         struct qed_ptt *p_ptt;
1575         u8 fw_return_code;
1576         int rc;
1577
1578         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "itid = %08x\n", itid);
1579
1580         /* Get SPQ entry */
1581         memset(&init_data, 0, sizeof(init_data));
1582         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
1583         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
1584
1585         rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_DEREGISTER_MR,
1586                                  p_hwfn->p_rdma_info->proto, &init_data);
1587         if (rc) {
1588                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc);
1589                 return rc;
1590         }
1591
1592         p_ramrod = &p_ent->ramrod.rdma_deregister_tid;
1593         p_ramrod->itid = cpu_to_le32(itid);
1594
1595         rc = qed_spq_post(p_hwfn, p_ent, &fw_return_code);
1596         if (rc) {
1597                 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc);
1598                 return rc;
1599         }
1600
1601         if (fw_return_code == RDMA_RETURN_DEREGISTER_MR_BAD_STATE_ERR) {
1602                 DP_NOTICE(p_hwfn, "fw_return_code = %d\n", fw_return_code);
1603                 return -EINVAL;
1604         } else if (fw_return_code == RDMA_RETURN_NIG_DRAIN_REQ) {
1605                 /* Bit indicating that the TID is in use and a nig drain is
1606                  * required before sending the ramrod again
1607                  */
1608                 p_ptt = qed_ptt_acquire(p_hwfn);
1609                 if (!p_ptt) {
1610                         rc = -EBUSY;
1611                         DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
1612                                    "Failed to acquire PTT\n");
1613                         return rc;
1614                 }
1615
1616                 rc = qed_mcp_drain(p_hwfn, p_ptt);
1617                 if (rc) {
1618                         qed_ptt_release(p_hwfn, p_ptt);
1619                         DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
1620                                    "Drain failed\n");
1621                         return rc;
1622                 }
1623
1624                 qed_ptt_release(p_hwfn, p_ptt);
1625
1626                 /* Resend the ramrod */
1627                 rc = qed_sp_init_request(p_hwfn, &p_ent,
1628                                          RDMA_RAMROD_DEREGISTER_MR,
1629                                          p_hwfn->p_rdma_info->proto,
1630                                          &init_data);
1631                 if (rc) {
1632                         DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
1633                                    "Failed to init sp-element\n");
1634                         return rc;
1635                 }
1636
1637                 rc = qed_spq_post(p_hwfn, p_ent, &fw_return_code);
1638                 if (rc) {
1639                         DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
1640                                    "Ramrod failed\n");
1641                         return rc;
1642                 }
1643
1644                 if (fw_return_code != RDMA_RETURN_OK) {
1645                         DP_NOTICE(p_hwfn, "fw_return_code = %d\n",
1646                                   fw_return_code);
1647                         return rc;
1648                 }
1649         }
1650
1651         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "De-registered TID, rc = %d\n", rc);
1652         return rc;
1653 }
1654
1655 static void *qed_rdma_get_rdma_ctx(struct qed_dev *cdev)
1656 {
1657         return QED_AFFIN_HWFN(cdev);
1658 }
1659
1660 static int qed_rdma_modify_srq(void *rdma_cxt,
1661                                struct qed_rdma_modify_srq_in_params *in_params)
1662 {
1663         struct rdma_srq_modify_ramrod_data *p_ramrod;
1664         struct qed_sp_init_data init_data = {};
1665         struct qed_hwfn *p_hwfn = rdma_cxt;
1666         struct qed_spq_entry *p_ent;
1667         u16 opaque_fid;
1668         int rc;
1669
1670         init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
1671         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
1672
1673         rc = qed_sp_init_request(p_hwfn, &p_ent,
1674                                  RDMA_RAMROD_MODIFY_SRQ,
1675                                  p_hwfn->p_rdma_info->proto, &init_data);
1676         if (rc)
1677                 return rc;
1678
1679         p_ramrod = &p_ent->ramrod.rdma_modify_srq;
1680         p_ramrod->srq_id.srq_idx = cpu_to_le16(in_params->srq_id);
1681         opaque_fid = p_hwfn->hw_info.opaque_fid;
1682         p_ramrod->srq_id.opaque_fid = cpu_to_le16(opaque_fid);
1683         p_ramrod->wqe_limit = cpu_to_le32(in_params->wqe_limit);
1684
1685         rc = qed_spq_post(p_hwfn, p_ent, NULL);
1686         if (rc)
1687                 return rc;
1688
1689         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "modified SRQ id = %x",
1690                    in_params->srq_id);
1691
1692         return rc;
1693 }
1694
1695 static int
1696 qed_rdma_destroy_srq(void *rdma_cxt,
1697                      struct qed_rdma_destroy_srq_in_params *in_params)
1698 {
1699         struct rdma_srq_destroy_ramrod_data *p_ramrod;
1700         struct qed_sp_init_data init_data = {};
1701         struct qed_hwfn *p_hwfn = rdma_cxt;
1702         struct qed_spq_entry *p_ent;
1703         struct qed_bmap *bmap;
1704         u16 opaque_fid;
1705         int rc;
1706
1707         opaque_fid = p_hwfn->hw_info.opaque_fid;
1708
1709         init_data.opaque_fid = opaque_fid;
1710         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
1711
1712         rc = qed_sp_init_request(p_hwfn, &p_ent,
1713                                  RDMA_RAMROD_DESTROY_SRQ,
1714                                  p_hwfn->p_rdma_info->proto, &init_data);
1715         if (rc)
1716                 return rc;
1717
1718         p_ramrod = &p_ent->ramrod.rdma_destroy_srq;
1719         p_ramrod->srq_id.srq_idx = cpu_to_le16(in_params->srq_id);
1720         p_ramrod->srq_id.opaque_fid = cpu_to_le16(opaque_fid);
1721
1722         rc = qed_spq_post(p_hwfn, p_ent, NULL);
1723         if (rc)
1724                 return rc;
1725
1726         bmap = &p_hwfn->p_rdma_info->srq_map;
1727
1728         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
1729         qed_bmap_release_id(p_hwfn, bmap, in_params->srq_id);
1730         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
1731
1732         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "SRQ destroyed Id = %x",
1733                    in_params->srq_id);
1734
1735         return rc;
1736 }
1737
1738 static int
1739 qed_rdma_create_srq(void *rdma_cxt,
1740                     struct qed_rdma_create_srq_in_params *in_params,
1741                     struct qed_rdma_create_srq_out_params *out_params)
1742 {
1743         struct rdma_srq_create_ramrod_data *p_ramrod;
1744         struct qed_sp_init_data init_data = {};
1745         struct qed_hwfn *p_hwfn = rdma_cxt;
1746         enum qed_cxt_elem_type elem_type;
1747         struct qed_spq_entry *p_ent;
1748         u16 opaque_fid, srq_id;
1749         struct qed_bmap *bmap;
1750         u32 returned_id;
1751         int rc;
1752
1753         bmap = &p_hwfn->p_rdma_info->srq_map;
1754         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
1755         rc = qed_rdma_bmap_alloc_id(p_hwfn, bmap, &returned_id);
1756         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
1757
1758         if (rc) {
1759                 DP_NOTICE(p_hwfn, "failed to allocate srq id\n");
1760                 return rc;
1761         }
1762
1763         elem_type = QED_ELEM_SRQ;
1764         rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, elem_type, returned_id);
1765         if (rc)
1766                 goto err;
1767         /* returned id is no greater than u16 */
1768         srq_id = (u16)returned_id;
1769         opaque_fid = p_hwfn->hw_info.opaque_fid;
1770
1771         opaque_fid = p_hwfn->hw_info.opaque_fid;
1772         init_data.opaque_fid = opaque_fid;
1773         init_data.comp_mode = QED_SPQ_MODE_EBLOCK;
1774
1775         rc = qed_sp_init_request(p_hwfn, &p_ent,
1776                                  RDMA_RAMROD_CREATE_SRQ,
1777                                  p_hwfn->p_rdma_info->proto, &init_data);
1778         if (rc)
1779                 goto err;
1780
1781         p_ramrod = &p_ent->ramrod.rdma_create_srq;
1782         DMA_REGPAIR_LE(p_ramrod->pbl_base_addr, in_params->pbl_base_addr);
1783         p_ramrod->pages_in_srq_pbl = cpu_to_le16(in_params->num_pages);
1784         p_ramrod->pd_id = cpu_to_le16(in_params->pd_id);
1785         p_ramrod->srq_id.srq_idx = cpu_to_le16(srq_id);
1786         p_ramrod->srq_id.opaque_fid = cpu_to_le16(opaque_fid);
1787         p_ramrod->page_size = cpu_to_le16(in_params->page_size);
1788         DMA_REGPAIR_LE(p_ramrod->producers_addr, in_params->prod_pair_addr);
1789
1790         rc = qed_spq_post(p_hwfn, p_ent, NULL);
1791         if (rc)
1792                 goto err;
1793
1794         out_params->srq_id = srq_id;
1795
1796         DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
1797                    "SRQ created Id = %x\n", out_params->srq_id);
1798
1799         return rc;
1800
1801 err:
1802         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
1803         qed_bmap_release_id(p_hwfn, bmap, returned_id);
1804         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
1805
1806         return rc;
1807 }
1808
1809 bool qed_rdma_allocated_qps(struct qed_hwfn *p_hwfn)
1810 {
1811         bool result;
1812
1813         /* if rdma wasn't activated yet, naturally there are no qps */
1814         if (!p_hwfn->p_rdma_info->active)
1815                 return false;
1816
1817         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
1818         if (!p_hwfn->p_rdma_info->cid_map.bitmap)
1819                 result = false;
1820         else
1821                 result = !qed_bmap_is_empty(&p_hwfn->p_rdma_info->cid_map);
1822         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
1823         return result;
1824 }
1825
1826 void qed_rdma_dpm_conf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
1827 {
1828         u32 val;
1829
1830         val = (p_hwfn->dcbx_no_edpm || p_hwfn->db_bar_no_edpm) ? 0 : 1;
1831
1832         qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_DPM_ENABLE, val);
1833         DP_VERBOSE(p_hwfn, (QED_MSG_DCB | QED_MSG_RDMA),
1834                    "Changing DPM_EN state to %d (DCBX=%d, DB_BAR=%d)\n",
1835                    val, p_hwfn->dcbx_no_edpm, p_hwfn->db_bar_no_edpm);
1836 }
1837
1838
1839 void qed_rdma_dpm_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
1840 {
1841         p_hwfn->db_bar_no_edpm = true;
1842
1843         qed_rdma_dpm_conf(p_hwfn, p_ptt);
1844 }
1845
1846 static int qed_rdma_start(void *rdma_cxt,
1847                           struct qed_rdma_start_in_params *params)
1848 {
1849         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
1850         struct qed_ptt *p_ptt;
1851         int rc = -EBUSY;
1852
1853         DP_VERBOSE(p_hwfn, QED_MSG_RDMA,
1854                    "desired_cnq = %08x\n", params->desired_cnq);
1855
1856         p_ptt = qed_ptt_acquire(p_hwfn);
1857         if (!p_ptt)
1858                 goto err;
1859
1860         rc = qed_rdma_alloc(p_hwfn);
1861         if (rc)
1862                 goto err1;
1863
1864         rc = qed_rdma_setup(p_hwfn, p_ptt, params);
1865         if (rc)
1866                 goto err2;
1867
1868         qed_ptt_release(p_hwfn, p_ptt);
1869         p_hwfn->p_rdma_info->active = 1;
1870
1871         return rc;
1872
1873 err2:
1874         qed_rdma_free(p_hwfn);
1875 err1:
1876         qed_ptt_release(p_hwfn, p_ptt);
1877 err:
1878         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA start - error, rc = %d\n", rc);
1879         return rc;
1880 }
1881
1882 static int qed_rdma_init(struct qed_dev *cdev,
1883                          struct qed_rdma_start_in_params *params)
1884 {
1885         return qed_rdma_start(QED_AFFIN_HWFN(cdev), params);
1886 }
1887
1888 static void qed_rdma_remove_user(void *rdma_cxt, u16 dpi)
1889 {
1890         struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt;
1891
1892         DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "dpi = %08x\n", dpi);
1893
1894         spin_lock_bh(&p_hwfn->p_rdma_info->lock);
1895         qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->dpi_map, dpi);
1896         spin_unlock_bh(&p_hwfn->p_rdma_info->lock);
1897 }
1898
1899 static int qed_roce_ll2_set_mac_filter(struct qed_dev *cdev,
1900                                        u8 *old_mac_address,
1901                                        u8 *new_mac_address)
1902 {
1903         int rc = 0;
1904
1905         if (old_mac_address)
1906                 qed_llh_remove_mac_filter(cdev, 0, old_mac_address);
1907         if (new_mac_address)
1908                 rc = qed_llh_add_mac_filter(cdev, 0, new_mac_address);
1909
1910         if (rc)
1911                 DP_ERR(cdev,
1912                        "qed roce ll2 mac filter set: failed to add MAC filter\n");
1913
1914         return rc;
1915 }
1916
1917 static int qed_iwarp_set_engine_affin(struct qed_dev *cdev, bool b_reset)
1918 {
1919         enum qed_eng eng;
1920         u8 ppfid = 0;
1921         int rc;
1922
1923         /* Make sure iwarp cmt mode is enabled before setting affinity */
1924         if (!cdev->iwarp_cmt)
1925                 return -EINVAL;
1926
1927         if (b_reset)
1928                 eng = QED_BOTH_ENG;
1929         else
1930                 eng = cdev->l2_affin_hint ? QED_ENG1 : QED_ENG0;
1931
1932         rc = qed_llh_set_ppfid_affinity(cdev, ppfid, eng);
1933         if (rc) {
1934                 DP_NOTICE(cdev,
1935                           "Failed to set the engine affinity of ppfid %d\n",
1936                           ppfid);
1937                 return rc;
1938         }
1939
1940         DP_VERBOSE(cdev, (QED_MSG_RDMA | QED_MSG_SP),
1941                    "LLH: Set the engine affinity of non-RoCE packets as %d\n",
1942                    eng);
1943
1944         return 0;
1945 }
1946
1947 static const struct qed_rdma_ops qed_rdma_ops_pass = {
1948         .common = &qed_common_ops_pass,
1949         .fill_dev_info = &qed_fill_rdma_dev_info,
1950         .rdma_get_rdma_ctx = &qed_rdma_get_rdma_ctx,
1951         .rdma_init = &qed_rdma_init,
1952         .rdma_add_user = &qed_rdma_add_user,
1953         .rdma_remove_user = &qed_rdma_remove_user,
1954         .rdma_stop = &qed_rdma_stop,
1955         .rdma_query_port = &qed_rdma_query_port,
1956         .rdma_query_device = &qed_rdma_query_device,
1957         .rdma_get_start_sb = &qed_rdma_get_sb_start,
1958         .rdma_get_rdma_int = &qed_rdma_get_int,
1959         .rdma_set_rdma_int = &qed_rdma_set_int,
1960         .rdma_get_min_cnq_msix = &qed_rdma_get_min_cnq_msix,
1961         .rdma_cnq_prod_update = &qed_rdma_cnq_prod_update,
1962         .rdma_alloc_pd = &qed_rdma_alloc_pd,
1963         .rdma_dealloc_pd = &qed_rdma_free_pd,
1964         .rdma_create_cq = &qed_rdma_create_cq,
1965         .rdma_destroy_cq = &qed_rdma_destroy_cq,
1966         .rdma_create_qp = &qed_rdma_create_qp,
1967         .rdma_modify_qp = &qed_rdma_modify_qp,
1968         .rdma_query_qp = &qed_rdma_query_qp,
1969         .rdma_destroy_qp = &qed_rdma_destroy_qp,
1970         .rdma_alloc_tid = &qed_rdma_alloc_tid,
1971         .rdma_free_tid = &qed_rdma_free_tid,
1972         .rdma_register_tid = &qed_rdma_register_tid,
1973         .rdma_deregister_tid = &qed_rdma_deregister_tid,
1974         .rdma_create_srq = &qed_rdma_create_srq,
1975         .rdma_modify_srq = &qed_rdma_modify_srq,
1976         .rdma_destroy_srq = &qed_rdma_destroy_srq,
1977         .ll2_acquire_connection = &qed_ll2_acquire_connection,
1978         .ll2_establish_connection = &qed_ll2_establish_connection,
1979         .ll2_terminate_connection = &qed_ll2_terminate_connection,
1980         .ll2_release_connection = &qed_ll2_release_connection,
1981         .ll2_post_rx_buffer = &qed_ll2_post_rx_buffer,
1982         .ll2_prepare_tx_packet = &qed_ll2_prepare_tx_packet,
1983         .ll2_set_fragment_of_tx_packet = &qed_ll2_set_fragment_of_tx_packet,
1984         .ll2_set_mac_filter = &qed_roce_ll2_set_mac_filter,
1985         .ll2_get_stats = &qed_ll2_get_stats,
1986         .iwarp_set_engine_affin = &qed_iwarp_set_engine_affin,
1987         .iwarp_connect = &qed_iwarp_connect,
1988         .iwarp_create_listen = &qed_iwarp_create_listen,
1989         .iwarp_destroy_listen = &qed_iwarp_destroy_listen,
1990         .iwarp_accept = &qed_iwarp_accept,
1991         .iwarp_reject = &qed_iwarp_reject,
1992         .iwarp_send_rtr = &qed_iwarp_send_rtr,
1993 };
1994
1995 const struct qed_rdma_ops *qed_get_rdma_ops(void)
1996 {
1997         return &qed_rdma_ops_pass;
1998 }
1999 EXPORT_SYMBOL(qed_get_rdma_ops);