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   1 /*
   2  * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
   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  * $Id: mthca_cmd.c 1349 2004-12-16 21:09:43Z roland $
  33  */
  34
  35 #include <linux/sched.h>
  36 #include <linux/pci.h>
  37 #include <linux/errno.h>
  38 #include <asm/io.h>
  39 #include <ib_mad.h>
  40
  41 #include "mthca_dev.h"
  42 #include "mthca_config_reg.h"
  43 #include "mthca_cmd.h"
  44 #include "mthca_memfree.h"
  45
  46 #define CMD_POLL_TOKEN 0xffff
  47
  48 enum {
  49         HCR_IN_PARAM_OFFSET    = 0x00,
  50         HCR_IN_MODIFIER_OFFSET = 0x08,
  51         HCR_OUT_PARAM_OFFSET   = 0x0c,
  52         HCR_TOKEN_OFFSET       = 0x14,
  53         HCR_STATUS_OFFSET      = 0x18,
  54
  55         HCR_OPMOD_SHIFT        = 12,
  56         HCA_E_BIT              = 22,
  57         HCR_GO_BIT             = 23
  58 };
  59
  60 enum {
  61         /* initialization and general commands */
  62         CMD_SYS_EN          = 0x1,
  63         CMD_SYS_DIS         = 0x2,
  64         CMD_MAP_FA          = 0xfff,
  65         CMD_UNMAP_FA        = 0xffe,
  66         CMD_RUN_FW          = 0xff6,
  67         CMD_MOD_STAT_CFG    = 0x34,
  68         CMD_QUERY_DEV_LIM   = 0x3,
  69         CMD_QUERY_FW        = 0x4,
  70         CMD_ENABLE_LAM      = 0xff8,
  71         CMD_DISABLE_LAM     = 0xff7,
  72         CMD_QUERY_DDR       = 0x5,
  73         CMD_QUERY_ADAPTER   = 0x6,
  74         CMD_INIT_HCA        = 0x7,
  75         CMD_CLOSE_HCA       = 0x8,
  76         CMD_INIT_IB         = 0x9,
  77         CMD_CLOSE_IB        = 0xa,
  78         CMD_QUERY_HCA       = 0xb,
  79         CMD_SET_IB          = 0xc,
  80         CMD_ACCESS_DDR      = 0x2e,
  81         CMD_MAP_ICM         = 0xffa,
  82         CMD_UNMAP_ICM       = 0xff9,
  83         CMD_MAP_ICM_AUX     = 0xffc,
  84         CMD_UNMAP_ICM_AUX   = 0xffb,
  85         CMD_SET_ICM_SIZE    = 0xffd,
  86
  87         /* TPT commands */
  88         CMD_SW2HW_MPT       = 0xd,
  89         CMD_QUERY_MPT       = 0xe,
  90         CMD_HW2SW_MPT       = 0xf,
  91         CMD_READ_MTT        = 0x10,
  92         CMD_WRITE_MTT       = 0x11,
  93         CMD_SYNC_TPT        = 0x2f,
  94
  95         /* EQ commands */
  96         CMD_MAP_EQ          = 0x12,
  97         CMD_SW2HW_EQ        = 0x13,
  98         CMD_HW2SW_EQ        = 0x14,
  99         CMD_QUERY_EQ        = 0x15,
 100
 101         /* CQ commands */
 102         CMD_SW2HW_CQ        = 0x16,
 103         CMD_HW2SW_CQ        = 0x17,
 104         CMD_QUERY_CQ        = 0x18,
 105         CMD_RESIZE_CQ       = 0x2c,
 106
 107         /* SRQ commands */
 108         CMD_SW2HW_SRQ       = 0x35,
 109         CMD_HW2SW_SRQ       = 0x36,
 110         CMD_QUERY_SRQ       = 0x37,
 111
 112         /* QP/EE commands */
 113         CMD_RST2INIT_QPEE   = 0x19,
 114         CMD_INIT2RTR_QPEE   = 0x1a,
 115         CMD_RTR2RTS_QPEE    = 0x1b,
 116         CMD_RTS2RTS_QPEE    = 0x1c,
 117         CMD_SQERR2RTS_QPEE  = 0x1d,
 118         CMD_2ERR_QPEE       = 0x1e,
 119         CMD_RTS2SQD_QPEE    = 0x1f,
 120         CMD_SQD2SQD_QPEE    = 0x38,
 121         CMD_SQD2RTS_QPEE    = 0x20,
 122         CMD_ERR2RST_QPEE    = 0x21,
 123         CMD_QUERY_QPEE      = 0x22,
 124         CMD_INIT2INIT_QPEE  = 0x2d,
 125         CMD_SUSPEND_QPEE    = 0x32,
 126         CMD_UNSUSPEND_QPEE  = 0x33,
 127         /* special QPs and management commands */
 128         CMD_CONF_SPECIAL_QP = 0x23,
 129         CMD_MAD_IFC         = 0x24,
 130
 131         /* multicast commands */
 132         CMD_READ_MGM        = 0x25,
 133         CMD_WRITE_MGM       = 0x26,
 134         CMD_MGID_HASH       = 0x27,
 135
 136         /* miscellaneous commands */
 137         CMD_DIAG_RPRT       = 0x30,
 138         CMD_NOP             = 0x31,
 139
 140         /* debug commands */
 141         CMD_QUERY_DEBUG_MSG = 0x2a,
 142         CMD_SET_DEBUG_MSG   = 0x2b,
 143 };
 144
 145 /*
 146  * According to Mellanox code, FW may be starved and never complete
 147  * commands.  So we can't use strict timeouts described in PRM -- we
 148  * just arbitrarily select 60 seconds for now.
 149  */
 150 #if 0
 151 /*
 152  * Round up and add 1 to make sure we get the full wait time (since we
 153  * will be starting in the middle of a jiffy)
 154  */
 155 enum {
 156         CMD_TIME_CLASS_A = (HZ + 999) / 1000 + 1,
 157         CMD_TIME_CLASS_B = (HZ +  99) /  100 + 1,
 158         CMD_TIME_CLASS_C = (HZ +   9) /   10 + 1
 159 };
 160 #else
 161 enum {
 162         CMD_TIME_CLASS_A = 60 * HZ,
 163         CMD_TIME_CLASS_B = 60 * HZ,
 164         CMD_TIME_CLASS_C = 60 * HZ
 165 };
 166 #endif
 167
 168 enum {
 169         GO_BIT_TIMEOUT = HZ * 10
 170 };
 171
 172 struct mthca_cmd_context {
 173         struct completion done;
 174         struct timer_list timer;
 175         int               result;
 176         int               next;
 177         u64               out_param;
 178         u16               token;
 179         u8                status;
 180 };
 181
 182 static inline int go_bit(struct mthca_dev *dev)
 183 {
 184         return readl(dev->hcr + HCR_STATUS_OFFSET) &
 185                 swab32(1 << HCR_GO_BIT);
 186 }
 187
 188 static int mthca_cmd_post(struct mthca_dev *dev,
 189                           u64 in_param,
 190                           u64 out_param,
 191                           u32 in_modifier,
 192                           u8 op_modifier,
 193                           u16 op,
 194                           u16 token,
 195                           int event)
 196 {
 197         int err = 0;
 198
 199         if (down_interruptible(&dev->cmd.hcr_sem))
 200                 return -EINTR;
 201
 202         if (event) {
 203                 unsigned long end = jiffies + GO_BIT_TIMEOUT;
 204
 205                 while (go_bit(dev) && time_before(jiffies, end)) {
 206                         set_current_state(TASK_RUNNING);
 207                         schedule();
 208                 }
 209         }
 210
 211         if (go_bit(dev)) {
 212                 err = -EAGAIN;
 213                 goto out;
 214         }
 215
 216         /*
 217          * We use writel (instead of something like memcpy_toio)
 218          * because writes of less than 32 bits to the HCR don't work
 219          * (and some architectures such as ia64 implement memcpy_toio
 220          * in terms of writeb).
 221          */
 222         __raw_writel(cpu_to_be32(in_param >> 32),           dev->hcr + 0 * 4);
 223         __raw_writel(cpu_to_be32(in_param & 0xfffffffful),  dev->hcr + 1 * 4);
 224         __raw_writel(cpu_to_be32(in_modifier),              dev->hcr + 2 * 4);
 225         __raw_writel(cpu_to_be32(out_param >> 32),          dev->hcr + 3 * 4);
 226         __raw_writel(cpu_to_be32(out_param & 0xfffffffful), dev->hcr + 4 * 4);
 227         __raw_writel(cpu_to_be32(token << 16),              dev->hcr + 5 * 4);
 228
 229         /* __raw_writel may not order writes. */
 230         wmb();
 231
 232         __raw_writel(cpu_to_be32((1 << HCR_GO_BIT)                |
 233                                  (event ? (1 << HCA_E_BIT) : 0)   |
 234                                  (op_modifier << HCR_OPMOD_SHIFT) |
 235                                  op),                       dev->hcr + 6 * 4);
 236
 237 out:
 238         up(&dev->cmd.hcr_sem);
 239         return err;
 240 }
 241
 242 static int mthca_cmd_poll(struct mthca_dev *dev,
 243                           u64 in_param,
 244                           u64 *out_param,
 245                           int out_is_imm,
 246                           u32 in_modifier,
 247                           u8 op_modifier,
 248                           u16 op,
 249                           unsigned long timeout,
 250                           u8 *status)
 251 {
 252         int err = 0;
 253         unsigned long end;
 254
 255         if (down_interruptible(&dev->cmd.poll_sem))
 256                 return -EINTR;
 257
 258         err = mthca_cmd_post(dev, in_param,
 259                              out_param ? *out_param : 0,
 260                              in_modifier, op_modifier,
 261                              op, CMD_POLL_TOKEN, 0);
 262         if (err)
 263                 goto out;
 264
 265         end = timeout + jiffies;
 266         while (go_bit(dev) && time_before(jiffies, end)) {
 267                 set_current_state(TASK_RUNNING);
 268                 schedule();
 269         }
 270
 271         if (go_bit(dev)) {
 272                 err = -EBUSY;
 273                 goto out;
 274         }
 275
 276         if (out_is_imm) {
 277                 memcpy_fromio(out_param, dev->hcr + HCR_OUT_PARAM_OFFSET, sizeof (u64));
 278                 be64_to_cpus(out_param);
 279         }
 280
 281         *status = be32_to_cpu(__raw_readl(dev->hcr + HCR_STATUS_OFFSET)) >> 24;
 282
 283 out:
 284         up(&dev->cmd.poll_sem);
 285         return err;
 286 }
 287
 288 void mthca_cmd_event(struct mthca_dev *dev,
 289                      u16 token,
 290                      u8  status,
 291                      u64 out_param)
 292 {
 293         struct mthca_cmd_context *context =
 294                 &dev->cmd.context[token & dev->cmd.token_mask];
 295
 296         /* previously timed out command completing at long last */
 297         if (token != context->token)
 298                 return;
 299
 300         context->result    = 0;
 301         context->status    = status;
 302         context->out_param = out_param;
 303
 304         context->token += dev->cmd.token_mask + 1;
 305
 306         complete(&context->done);
 307 }
 308
 309 static void event_timeout(unsigned long context_ptr)
 310 {
 311         struct mthca_cmd_context *context =
 312                 (struct mthca_cmd_context *) context_ptr;
 313
 314         context->result = -EBUSY;
 315         complete(&context->done);
 316 }
 317
 318 static int mthca_cmd_wait(struct mthca_dev *dev,
 319                           u64 in_param,
 320                           u64 *out_param,
 321                           int out_is_imm,
 322                           u32 in_modifier,
 323                           u8 op_modifier,
 324                           u16 op,
 325                           unsigned long timeout,
 326                           u8 *status)
 327 {
 328         int err = 0;
 329         struct mthca_cmd_context *context;
 330
 331         if (down_interruptible(&dev->cmd.event_sem))
 332                 return -EINTR;
 333
 334         spin_lock(&dev->cmd.context_lock);
 335         BUG_ON(dev->cmd.free_head < 0);
 336         context = &dev->cmd.context[dev->cmd.free_head];
 337         dev->cmd.free_head = context->next;
 338         spin_unlock(&dev->cmd.context_lock);
 339
 340         init_completion(&context->done);
 341
 342         err = mthca_cmd_post(dev, in_param,
 343                              out_param ? *out_param : 0,
 344                              in_modifier, op_modifier,
 345                              op, context->token, 1);
 346         if (err)
 347                 goto out;
 348
 349         context->timer.expires  = jiffies + timeout;
 350         add_timer(&context->timer);
 351
 352         wait_for_completion(&context->done);
 353         del_timer_sync(&context->timer);
 354
 355         err = context->result;
 356         if (err)
 357                 goto out;
 358
 359         *status = context->status;
 360         if (*status)
 361                 mthca_dbg(dev, "Command %02x completed with status %02x\n",
 362                           op, *status);
 363
 364         if (out_is_imm)
 365                 *out_param = context->out_param;
 366
 367 out:
 368         spin_lock(&dev->cmd.context_lock);
 369         context->next = dev->cmd.free_head;
 370         dev->cmd.free_head = context - dev->cmd.context;
 371         spin_unlock(&dev->cmd.context_lock);
 372
 373         up(&dev->cmd.event_sem);
 374         return err;
 375 }
 376
 377 /* Invoke a command with an output mailbox */
 378 static int mthca_cmd_box(struct mthca_dev *dev,
 379                          u64 in_param,
 380                          u64 out_param,
 381                          u32 in_modifier,
 382                          u8 op_modifier,
 383                          u16 op,
 384                          unsigned long timeout,
 385                          u8 *status)
 386 {
 387         if (dev->cmd.use_events)
 388                 return mthca_cmd_wait(dev, in_param, &out_param, 0,
 389                                       in_modifier, op_modifier, op,
 390                                       timeout, status);
 391         else
 392                 return mthca_cmd_poll(dev, in_param, &out_param, 0,
 393                                       in_modifier, op_modifier, op,
 394                                       timeout, status);
 395 }
 396
 397 /* Invoke a command with no output parameter */
 398 static int mthca_cmd(struct mthca_dev *dev,
 399                      u64 in_param,
 400                      u32 in_modifier,
 401                      u8 op_modifier,
 402                      u16 op,
 403                      unsigned long timeout,
 404                      u8 *status)
 405 {
 406         return mthca_cmd_box(dev, in_param, 0, in_modifier,
 407                              op_modifier, op, timeout, status);
 408 }
 409
 410 /*
 411  * Invoke a command with an immediate output parameter (and copy the
 412  * output into the caller's out_param pointer after the command
 413  * executes).
 414  */
 415 static int mthca_cmd_imm(struct mthca_dev *dev,
 416                          u64 in_param,
 417                          u64 *out_param,
 418                          u32 in_modifier,
 419                          u8 op_modifier,
 420                          u16 op,
 421                          unsigned long timeout,
 422                          u8 *status)
 423 {
 424         if (dev->cmd.use_events)
 425                 return mthca_cmd_wait(dev, in_param, out_param, 1,
 426                                       in_modifier, op_modifier, op,
 427                                       timeout, status);
 428         else
 429                 return mthca_cmd_poll(dev, in_param, out_param, 1,
 430                                       in_modifier, op_modifier, op,
 431                                       timeout, status);
 432 }
 433
 434 /*
 435  * Switch to using events to issue FW commands (should be called after
 436  * event queue to command events has been initialized).
 437  */
 438 int mthca_cmd_use_events(struct mthca_dev *dev)
 439 {
 440         int i;
 441
 442         dev->cmd.context = kmalloc(dev->cmd.max_cmds *
 443                                    sizeof (struct mthca_cmd_context),
 444                                    GFP_KERNEL);
 445         if (!dev->cmd.context)
 446                 return -ENOMEM;
 447
 448         for (i = 0; i < dev->cmd.max_cmds; ++i) {
 449                 dev->cmd.context[i].token = i;
 450                 dev->cmd.context[i].next = i + 1;
 451                 init_timer(&dev->cmd.context[i].timer);
 452                 dev->cmd.context[i].timer.data     =
 453                         (unsigned long) &dev->cmd.context[i];
 454                 dev->cmd.context[i].timer.function = event_timeout;
 455         }
 456
 457         dev->cmd.context[dev->cmd.max_cmds - 1].next = -1;
 458         dev->cmd.free_head = 0;
 459
 460         sema_init(&dev->cmd.event_sem, dev->cmd.max_cmds);
 461         spin_lock_init(&dev->cmd.context_lock);
 462
 463         for (dev->cmd.token_mask = 1;
 464              dev->cmd.token_mask < dev->cmd.max_cmds;
 465              dev->cmd.token_mask <<= 1)
 466                 ; /* nothing */
 467         --dev->cmd.token_mask;
 468
 469         dev->cmd.use_events = 1;
 470         down(&dev->cmd.poll_sem);
 471
 472         return 0;
 473 }
 474
 475 /*
 476  * Switch back to polling (used when shutting down the device)
 477  */
 478 void mthca_cmd_use_polling(struct mthca_dev *dev)
 479 {
 480         int i;
 481
 482         dev->cmd.use_events = 0;
 483
 484         for (i = 0; i < dev->cmd.max_cmds; ++i)
 485                 down(&dev->cmd.event_sem);
 486
 487         kfree(dev->cmd.context);
 488
 489         up(&dev->cmd.poll_sem);
 490 }
 491
 492 int mthca_SYS_EN(struct mthca_dev *dev, u8 *status)
 493 {
 494         u64 out;
 495         int ret;
 496
 497         ret = mthca_cmd_imm(dev, 0, &out, 0, 0, CMD_SYS_EN, HZ, status);
 498
 499         if (*status == MTHCA_CMD_STAT_DDR_MEM_ERR)
 500                 mthca_warn(dev, "SYS_EN DDR error: syn=%x, sock=%d, "
 501                            "sladdr=%d, SPD source=%s\n",
 502                            (int) (out >> 6) & 0xf, (int) (out >> 4) & 3,
 503                            (int) (out >> 1) & 7, (int) out & 1 ? "NVMEM" : "DIMM");
 504
 505         return ret;
 506 }
 507
 508 int mthca_SYS_DIS(struct mthca_dev *dev, u8 *status)
 509 {
 510         return mthca_cmd(dev, 0, 0, 0, CMD_SYS_DIS, HZ, status);
 511 }
 512
 513 static int mthca_map_cmd(struct mthca_dev *dev, u16 op, struct mthca_icm *icm,
 514                          u64 virt, u8 *status)
 515 {
 516         u32 *inbox;
 517         dma_addr_t indma;
 518         struct mthca_icm_iter iter;
 519         int lg;
 520         int nent = 0;
 521         int i;
 522         int err = 0;
 523         int ts = 0, tc = 0;
 524
 525         inbox = pci_alloc_consistent(dev->pdev, PAGE_SIZE, &indma);
 526         if (!inbox)
 527                 return -ENOMEM;
 528
 529         memset(inbox, 0, PAGE_SIZE);
 530
 531         for (mthca_icm_first(icm, &iter);
 532              !mthca_icm_last(&iter);
 533              mthca_icm_next(&iter)) {
 534                 /*
 535                  * We have to pass pages that are aligned to their
 536                  * size, so find the least significant 1 in the
 537                  * address or size and use that as our log2 size.
 538                  */
 539                 lg = ffs(mthca_icm_addr(&iter) | mthca_icm_size(&iter)) - 1;
 540                 if (lg < 12) {
 541                         mthca_warn(dev, "Got FW area not aligned to 4K (%llx/%lx).\n",
 542                                    (unsigned long long) mthca_icm_addr(&iter),
 543                                    mthca_icm_size(&iter));
 544                         err = -EINVAL;
 545                         goto out;
 546                 }
 547                 for (i = 0; i < mthca_icm_size(&iter) / (1 << lg); ++i, ++nent) {
 548                         if (virt != -1) {
 549                                 *((__be64 *) (inbox + nent * 4)) =
 550                                         cpu_to_be64(virt);
 551                                 virt += 1 << lg;
 552                         }
 553
 554                         *((__be64 *) (inbox + nent * 4 + 2)) =
 555                                 cpu_to_be64((mthca_icm_addr(&iter) +
 556                                              (i << lg)) | (lg - 12));
 557                         ts += 1 << (lg - 10);
 558                         ++tc;
 559
 560                         if (nent == PAGE_SIZE / 16) {
 561                                 err = mthca_cmd(dev, indma, nent, 0, op,
 562                                                 CMD_TIME_CLASS_B, status);
 563                                 if (err || *status)
 564                                         goto out;
 565                                 nent = 0;
 566                         }
 567                 }
 568         }
 569
 570         if (nent)
 571                 err = mthca_cmd(dev, indma, nent, 0, op,
 572                                 CMD_TIME_CLASS_B, status);
 573
 574         switch (op) {
 575         case CMD_MAP_FA:
 576                 mthca_dbg(dev, "Mapped %d chunks/%d KB for FW.\n", tc, ts);
 577                 break;
 578         case CMD_MAP_ICM_AUX:
 579                 mthca_dbg(dev, "Mapped %d chunks/%d KB for ICM aux.\n", tc, ts);
 580                 break;
 581         case CMD_MAP_ICM:
 582                 mthca_dbg(dev, "Mapped %d chunks/%d KB at %llx for ICM.\n",
 583                           tc, ts, (unsigned long long) virt - (ts << 10));
 584                 break;
 585         }
 586
 587 out:
 588         pci_free_consistent(dev->pdev, PAGE_SIZE, inbox, indma);
 589         return err;
 590 }
 591
 592 int mthca_MAP_FA(struct mthca_dev *dev, struct mthca_icm *icm, u8 *status)
 593 {
 594         return mthca_map_cmd(dev, CMD_MAP_FA, icm, -1, status);
 595 }
 596
 597 int mthca_UNMAP_FA(struct mthca_dev *dev, u8 *status)
 598 {
 599         return mthca_cmd(dev, 0, 0, 0, CMD_UNMAP_FA, CMD_TIME_CLASS_B, status);
 600 }
 601
 602 int mthca_RUN_FW(struct mthca_dev *dev, u8 *status)
 603 {
 604         return mthca_cmd(dev, 0, 0, 0, CMD_RUN_FW, CMD_TIME_CLASS_A, status);
 605 }
 606
 607 int mthca_QUERY_FW(struct mthca_dev *dev, u8 *status)
 608 {
 609         u32 *outbox;
 610         dma_addr_t outdma;
 611         int err = 0;
 612         u8 lg;
 613
 614 #define QUERY_FW_OUT_SIZE             0x100
 615 #define QUERY_FW_VER_OFFSET            0x00
 616 #define QUERY_FW_MAX_CMD_OFFSET        0x0f
 617 #define QUERY_FW_ERR_START_OFFSET      0x30
 618 #define QUERY_FW_ERR_SIZE_OFFSET       0x38
 619
 620 #define QUERY_FW_START_OFFSET          0x20
 621 #define QUERY_FW_END_OFFSET            0x28
 622
 623 #define QUERY_FW_SIZE_OFFSET           0x00
 624 #define QUERY_FW_CLR_INT_BASE_OFFSET   0x20
 625 #define QUERY_FW_EQ_ARM_BASE_OFFSET    0x40
 626 #define QUERY_FW_EQ_SET_CI_BASE_OFFSET 0x48
 627
 628         outbox = pci_alloc_consistent(dev->pdev, QUERY_FW_OUT_SIZE, &outdma);
 629         if (!outbox) {
 630                 return -ENOMEM;
 631         }
 632
 633         err = mthca_cmd_box(dev, 0, outdma, 0, 0, CMD_QUERY_FW,
 634                             CMD_TIME_CLASS_A, status);
 635
 636         if (err)
 637                 goto out;
 638
 639         MTHCA_GET(dev->fw_ver,   outbox, QUERY_FW_VER_OFFSET);
 640         /*
 641          * FW subminor version is at more signifant bits than minor
 642          * version, so swap here.
 643          */
 644         dev->fw_ver = (dev->fw_ver & 0xffff00000000ull) |
 645                 ((dev->fw_ver & 0xffff0000ull) >> 16) |
 646                 ((dev->fw_ver & 0x0000ffffull) << 16);
 647
 648         MTHCA_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
 649         dev->cmd.max_cmds = 1 << lg;
 650
 651         mthca_dbg(dev, "FW version %012llx, max commands %d\n",
 652                   (unsigned long long) dev->fw_ver, dev->cmd.max_cmds);
 653
 654         if (dev->hca_type == ARBEL_NATIVE) {
 655                 MTHCA_GET(dev->fw.arbel.fw_pages,       outbox, QUERY_FW_SIZE_OFFSET);
 656                 MTHCA_GET(dev->fw.arbel.clr_int_base,   outbox, QUERY_FW_CLR_INT_BASE_OFFSET);
 657                 MTHCA_GET(dev->fw.arbel.eq_arm_base,    outbox, QUERY_FW_EQ_ARM_BASE_OFFSET);
 658                 MTHCA_GET(dev->fw.arbel.eq_set_ci_base, outbox, QUERY_FW_EQ_SET_CI_BASE_OFFSET);
 659                 mthca_dbg(dev, "FW size %d KB\n", dev->fw.arbel.fw_pages << 2);
 660
 661                 /*
 662                  * Arbel page size is always 4 KB; round up number of
 663                  * system pages needed.
 664                  */
 665                 dev->fw.arbel.fw_pages =
 666                         (dev->fw.arbel.fw_pages + (1 << (PAGE_SHIFT - 12)) - 1) >>
 667                         (PAGE_SHIFT - 12);
 668
 669                 mthca_dbg(dev, "Clear int @ %llx, EQ arm @ %llx, EQ set CI @ %llx\n",
 670                           (unsigned long long) dev->fw.arbel.clr_int_base,
 671                           (unsigned long long) dev->fw.arbel.eq_arm_base,
 672                           (unsigned long long) dev->fw.arbel.eq_set_ci_base);
 673         } else {
 674                 MTHCA_GET(dev->fw.tavor.fw_start, outbox, QUERY_FW_START_OFFSET);
 675                 MTHCA_GET(dev->fw.tavor.fw_end,   outbox, QUERY_FW_END_OFFSET);
 676
 677                 mthca_dbg(dev, "FW size %d KB (start %llx, end %llx)\n",
 678                           (int) ((dev->fw.tavor.fw_end - dev->fw.tavor.fw_start) >> 10),
 679                           (unsigned long long) dev->fw.tavor.fw_start,
 680                           (unsigned long long) dev->fw.tavor.fw_end);
 681         }
 682
 683 out:
 684         pci_free_consistent(dev->pdev, QUERY_FW_OUT_SIZE, outbox, outdma);
 685         return err;
 686 }
 687
 688 int mthca_ENABLE_LAM(struct mthca_dev *dev, u8 *status)
 689 {
 690         u8 info;
 691         u32 *outbox;
 692         dma_addr_t outdma;
 693         int err = 0;
 694
 695 #define ENABLE_LAM_OUT_SIZE         0x100
 696 #define ENABLE_LAM_START_OFFSET     0x00
 697 #define ENABLE_LAM_END_OFFSET       0x08
 698 #define ENABLE_LAM_INFO_OFFSET      0x13
 699
 700 #define ENABLE_LAM_INFO_HIDDEN_FLAG (1 << 4)
 701 #define ENABLE_LAM_INFO_ECC_MASK    0x3
 702
 703         outbox = pci_alloc_consistent(dev->pdev, ENABLE_LAM_OUT_SIZE, &outdma);
 704         if (!outbox)
 705                 return -ENOMEM;
 706
 707         err = mthca_cmd_box(dev, 0, outdma, 0, 0, CMD_ENABLE_LAM,
 708                             CMD_TIME_CLASS_C, status);
 709
 710         if (err)
 711                 goto out;
 712
 713         if (*status == MTHCA_CMD_STAT_LAM_NOT_PRE)
 714                 goto out;
 715
 716         MTHCA_GET(dev->ddr_start, outbox, ENABLE_LAM_START_OFFSET);
 717         MTHCA_GET(dev->ddr_end,   outbox, ENABLE_LAM_END_OFFSET);
 718         MTHCA_GET(info,           outbox, ENABLE_LAM_INFO_OFFSET);
 719
 720         if (!!(info & ENABLE_LAM_INFO_HIDDEN_FLAG) !=
 721             !!(dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN)) {
 722                 mthca_info(dev, "FW reports that HCA-attached memory "
 723                            "is %s hidden; does not match PCI config\n",
 724                            (info & ENABLE_LAM_INFO_HIDDEN_FLAG) ?
 725                            "" : "not");
 726         }
 727         if (info & ENABLE_LAM_INFO_HIDDEN_FLAG)
 728                 mthca_dbg(dev, "HCA-attached memory is hidden.\n");
 729
 730         mthca_dbg(dev, "HCA memory size %d KB (start %llx, end %llx)\n",
 731                   (int) ((dev->ddr_end - dev->ddr_start) >> 10),
 732                   (unsigned long long) dev->ddr_start,
 733                   (unsigned long long) dev->ddr_end);
 734
 735 out:
 736         pci_free_consistent(dev->pdev, ENABLE_LAM_OUT_SIZE, outbox, outdma);
 737         return err;
 738 }
 739
 740 int mthca_DISABLE_LAM(struct mthca_dev *dev, u8 *status)
 741 {
 742         return mthca_cmd(dev, 0, 0, 0, CMD_SYS_DIS, CMD_TIME_CLASS_C, status);
 743 }
 744
 745 int mthca_QUERY_DDR(struct mthca_dev *dev, u8 *status)
 746 {
 747         u8 info;
 748         u32 *outbox;
 749         dma_addr_t outdma;
 750         int err = 0;
 751
 752 #define QUERY_DDR_OUT_SIZE         0x100
 753 #define QUERY_DDR_START_OFFSET     0x00
 754 #define QUERY_DDR_END_OFFSET       0x08
 755 #define QUERY_DDR_INFO_OFFSET      0x13
 756
 757 #define QUERY_DDR_INFO_HIDDEN_FLAG (1 << 4)
 758 #define QUERY_DDR_INFO_ECC_MASK    0x3
 759
 760         outbox = pci_alloc_consistent(dev->pdev, QUERY_DDR_OUT_SIZE, &outdma);
 761         if (!outbox)
 762                 return -ENOMEM;
 763
 764         err = mthca_cmd_box(dev, 0, outdma, 0, 0, CMD_QUERY_DDR,
 765                             CMD_TIME_CLASS_A, status);
 766
 767         if (err)
 768                 goto out;
 769
 770         MTHCA_GET(dev->ddr_start, outbox, QUERY_DDR_START_OFFSET);
 771         MTHCA_GET(dev->ddr_end,   outbox, QUERY_DDR_END_OFFSET);
 772         MTHCA_GET(info,           outbox, QUERY_DDR_INFO_OFFSET);
 773
 774         if (!!(info & QUERY_DDR_INFO_HIDDEN_FLAG) !=
 775             !!(dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN)) {
 776                 mthca_info(dev, "FW reports that HCA-attached memory "
 777                            "is %s hidden; does not match PCI config\n",
 778                            (info & QUERY_DDR_INFO_HIDDEN_FLAG) ?
 779                            "" : "not");
 780         }
 781         if (info & QUERY_DDR_INFO_HIDDEN_FLAG)
 782                 mthca_dbg(dev, "HCA-attached memory is hidden.\n");
 783
 784         mthca_dbg(dev, "HCA memory size %d KB (start %llx, end %llx)\n",
 785                   (int) ((dev->ddr_end - dev->ddr_start) >> 10),
 786                   (unsigned long long) dev->ddr_start,
 787                   (unsigned long long) dev->ddr_end);
 788
 789 out:
 790         pci_free_consistent(dev->pdev, QUERY_DDR_OUT_SIZE, outbox, outdma);
 791         return err;
 792 }
 793
 794 int mthca_QUERY_DEV_LIM(struct mthca_dev *dev,
 795                         struct mthca_dev_lim *dev_lim, u8 *status)
 796 {
 797         u32 *outbox;
 798         dma_addr_t outdma;
 799         u8 field;
 800         u16 size;
 801         int err;
 802
 803 #define QUERY_DEV_LIM_OUT_SIZE             0x100
 804 #define QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET     0x10
 805 #define QUERY_DEV_LIM_MAX_QP_SZ_OFFSET      0x11
 806 #define QUERY_DEV_LIM_RSVD_QP_OFFSET        0x12
 807 #define QUERY_DEV_LIM_MAX_QP_OFFSET         0x13
 808 #define QUERY_DEV_LIM_RSVD_SRQ_OFFSET       0x14
 809 #define QUERY_DEV_LIM_MAX_SRQ_OFFSET        0x15
 810 #define QUERY_DEV_LIM_RSVD_EEC_OFFSET       0x16
 811 #define QUERY_DEV_LIM_MAX_EEC_OFFSET        0x17
 812 #define QUERY_DEV_LIM_MAX_CQ_SZ_OFFSET      0x19
 813 #define QUERY_DEV_LIM_RSVD_CQ_OFFSET        0x1a
 814 #define QUERY_DEV_LIM_MAX_CQ_OFFSET         0x1b
 815 #define QUERY_DEV_LIM_MAX_MPT_OFFSET        0x1d
 816 #define QUERY_DEV_LIM_RSVD_EQ_OFFSET        0x1e
 817 #define QUERY_DEV_LIM_MAX_EQ_OFFSET         0x1f
 818 #define QUERY_DEV_LIM_RSVD_MTT_OFFSET       0x20
 819 #define QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET     0x21
 820 #define QUERY_DEV_LIM_RSVD_MRW_OFFSET       0x22
 821 #define QUERY_DEV_LIM_MAX_MTT_SEG_OFFSET    0x23
 822 #define QUERY_DEV_LIM_MAX_AV_OFFSET         0x27
 823 #define QUERY_DEV_LIM_MAX_REQ_QP_OFFSET     0x29
 824 #define QUERY_DEV_LIM_MAX_RES_QP_OFFSET     0x2b
 825 #define QUERY_DEV_LIM_MAX_RDMA_OFFSET       0x2f
 826 #define QUERY_DEV_LIM_RSZ_SRQ_OFFSET        0x33
 827 #define QUERY_DEV_LIM_ACK_DELAY_OFFSET      0x35
 828 #define QUERY_DEV_LIM_MTU_WIDTH_OFFSET      0x36
 829 #define QUERY_DEV_LIM_VL_PORT_OFFSET        0x37
 830 #define QUERY_DEV_LIM_MAX_GID_OFFSET        0x3b
 831 #define QUERY_DEV_LIM_MAX_PKEY_OFFSET       0x3f
 832 #define QUERY_DEV_LIM_FLAGS_OFFSET          0x44
 833 #define QUERY_DEV_LIM_RSVD_UAR_OFFSET       0x48
 834 #define QUERY_DEV_LIM_UAR_SZ_OFFSET         0x49
 835 #define QUERY_DEV_LIM_PAGE_SZ_OFFSET        0x4b
 836 #define QUERY_DEV_LIM_MAX_SG_OFFSET         0x51
 837 #define QUERY_DEV_LIM_MAX_DESC_SZ_OFFSET    0x52
 838 #define QUERY_DEV_LIM_MAX_SG_RQ_OFFSET      0x55
 839 #define QUERY_DEV_LIM_MAX_DESC_SZ_RQ_OFFSET 0x56
 840 #define QUERY_DEV_LIM_MAX_QP_MCG_OFFSET     0x61
 841 #define QUERY_DEV_LIM_RSVD_MCG_OFFSET       0x62
 842 #define QUERY_DEV_LIM_MAX_MCG_OFFSET        0x63
 843 #define QUERY_DEV_LIM_RSVD_PD_OFFSET        0x64
 844 #define QUERY_DEV_LIM_MAX_PD_OFFSET         0x65
 845 #define QUERY_DEV_LIM_RSVD_RDD_OFFSET       0x66
 846 #define QUERY_DEV_LIM_MAX_RDD_OFFSET        0x67
 847 #define QUERY_DEV_LIM_EEC_ENTRY_SZ_OFFSET   0x80
 848 #define QUERY_DEV_LIM_QPC_ENTRY_SZ_OFFSET   0x82
 849 #define QUERY_DEV_LIM_EEEC_ENTRY_SZ_OFFSET  0x84
 850 #define QUERY_DEV_LIM_EQPC_ENTRY_SZ_OFFSET  0x86
 851 #define QUERY_DEV_LIM_EQC_ENTRY_SZ_OFFSET   0x88
 852 #define QUERY_DEV_LIM_CQC_ENTRY_SZ_OFFSET   0x8a
 853 #define QUERY_DEV_LIM_SRQ_ENTRY_SZ_OFFSET   0x8c
 854 #define QUERY_DEV_LIM_UAR_ENTRY_SZ_OFFSET   0x8e
 855 #define QUERY_DEV_LIM_MTT_ENTRY_SZ_OFFSET   0x90
 856 #define QUERY_DEV_LIM_MPT_ENTRY_SZ_OFFSET   0x92
 857 #define QUERY_DEV_LIM_PBL_SZ_OFFSET         0x96
 858 #define QUERY_DEV_LIM_BMME_FLAGS_OFFSET     0x97
 859 #define QUERY_DEV_LIM_RSVD_LKEY_OFFSET      0x98
 860 #define QUERY_DEV_LIM_LAMR_OFFSET           0x9f
 861 #define QUERY_DEV_LIM_MAX_ICM_SZ_OFFSET     0xa0
 862
 863         outbox = pci_alloc_consistent(dev->pdev, QUERY_DEV_LIM_OUT_SIZE, &outdma);
 864         if (!outbox)
 865                 return -ENOMEM;
 866
 867         err = mthca_cmd_box(dev, 0, outdma, 0, 0, CMD_QUERY_DEV_LIM,
 868                             CMD_TIME_CLASS_A, status);
 869
 870         if (err)
 871                 goto out;
 872
 873         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET);
 874         dev_lim->max_srq_sz = 1 << field;
 875         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_SZ_OFFSET);
 876         dev_lim->max_qp_sz = 1 << field;
 877         MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_QP_OFFSET);
 878         dev_lim->reserved_qps = 1 << (field & 0xf);
 879         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_OFFSET);
 880         dev_lim->max_qps = 1 << (field & 0x1f);
 881         MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_SRQ_OFFSET);
 882         dev_lim->reserved_srqs = 1 << (field >> 4);
 883         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_OFFSET);
 884         dev_lim->max_srqs = 1 << (field & 0x1f);
 885         MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_EEC_OFFSET);
 886         dev_lim->reserved_eecs = 1 << (field & 0xf);
 887         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_EEC_OFFSET);
 888         dev_lim->max_eecs = 1 << (field & 0x1f);
 889         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_CQ_SZ_OFFSET);
 890         dev_lim->max_cq_sz = 1 << field;
 891         MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_CQ_OFFSET);
 892         dev_lim->reserved_cqs = 1 << (field & 0xf);
 893         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_CQ_OFFSET);
 894         dev_lim->max_cqs = 1 << (field & 0x1f);
 895         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MPT_OFFSET);
 896         dev_lim->max_mpts = 1 << (field & 0x3f);
 897         MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_EQ_OFFSET);
 898         dev_lim->reserved_eqs = 1 << (field & 0xf);
 899         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_EQ_OFFSET);
 900         dev_lim->max_eqs = 1 << (field & 0x7);
 901         MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MTT_OFFSET);
 902         dev_lim->reserved_mtts = 1 << (field >> 4);
 903         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET);
 904         dev_lim->max_mrw_sz = 1 << field;
 905         MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MRW_OFFSET);
 906         dev_lim->reserved_mrws = 1 << (field & 0xf);
 907         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MTT_SEG_OFFSET);
 908         dev_lim->max_mtt_seg = 1 << (field & 0x3f);
 909         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_REQ_QP_OFFSET);
 910         dev_lim->max_requester_per_qp = 1 << (field & 0x3f);
 911         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RES_QP_OFFSET);
 912         dev_lim->max_responder_per_qp = 1 << (field & 0x3f);
 913         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RDMA_OFFSET);
 914         dev_lim->max_rdma_global = 1 << (field & 0x3f);
 915         MTHCA_GET(field, outbox, QUERY_DEV_LIM_ACK_DELAY_OFFSET);
 916         dev_lim->local_ca_ack_delay = field & 0x1f;
 917         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MTU_WIDTH_OFFSET);
 918         dev_lim->max_mtu        = field >> 4;
 919         dev_lim->max_port_width = field & 0xf;
 920         MTHCA_GET(field, outbox, QUERY_DEV_LIM_VL_PORT_OFFSET);
 921         dev_lim->max_vl    = field >> 4;
 922         dev_lim->num_ports = field & 0xf;
 923         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_GID_OFFSET);
 924         dev_lim->max_gids = 1 << (field & 0xf);
 925         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_PKEY_OFFSET);
 926         dev_lim->max_pkeys = 1 << (field & 0xf);
 927         MTHCA_GET(dev_lim->flags, outbox, QUERY_DEV_LIM_FLAGS_OFFSET);
 928         MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_UAR_OFFSET);
 929         dev_lim->reserved_uars = field >> 4;
 930         MTHCA_GET(field, outbox, QUERY_DEV_LIM_UAR_SZ_OFFSET);
 931         dev_lim->uar_size = 1 << ((field & 0x3f) + 20);
 932         MTHCA_GET(field, outbox, QUERY_DEV_LIM_PAGE_SZ_OFFSET);
 933         dev_lim->min_page_sz = 1 << field;
 934         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SG_OFFSET);
 935         dev_lim->max_sg = field;
 936
 937         MTHCA_GET(size, outbox, QUERY_DEV_LIM_MAX_DESC_SZ_OFFSET);
 938         dev_lim->max_desc_sz = size;
 939
 940         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_MCG_OFFSET);
 941         dev_lim->max_qp_per_mcg = 1 << field;
 942         MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MCG_OFFSET);
 943         dev_lim->reserved_mgms = field & 0xf;
 944         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MCG_OFFSET);
 945         dev_lim->max_mcgs = 1 << field;
 946         MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_PD_OFFSET);
 947         dev_lim->reserved_pds = field >> 4;
 948         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_PD_OFFSET);
 949         dev_lim->max_pds = 1 << (field & 0x3f);
 950         MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_RDD_OFFSET);
 951         dev_lim->reserved_rdds = field >> 4;
 952         MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RDD_OFFSET);
 953         dev_lim->max_rdds = 1 << (field & 0x3f);
 954
 955         MTHCA_GET(size, outbox, QUERY_DEV_LIM_EEC_ENTRY_SZ_OFFSET);
 956         dev_lim->eec_entry_sz = size;
 957         MTHCA_GET(size, outbox, QUERY_DEV_LIM_QPC_ENTRY_SZ_OFFSET);
 958         dev_lim->qpc_entry_sz = size;
 959         MTHCA_GET(size, outbox, QUERY_DEV_LIM_EEEC_ENTRY_SZ_OFFSET);
 960         dev_lim->eeec_entry_sz = size;
 961         MTHCA_GET(size, outbox, QUERY_DEV_LIM_EQPC_ENTRY_SZ_OFFSET);
 962         dev_lim->eqpc_entry_sz = size;
 963         MTHCA_GET(size, outbox, QUERY_DEV_LIM_EQC_ENTRY_SZ_OFFSET);
 964         dev_lim->eqc_entry_sz = size;
 965         MTHCA_GET(size, outbox, QUERY_DEV_LIM_CQC_ENTRY_SZ_OFFSET);
 966         dev_lim->cqc_entry_sz = size;
 967         MTHCA_GET(size, outbox, QUERY_DEV_LIM_SRQ_ENTRY_SZ_OFFSET);
 968         dev_lim->srq_entry_sz = size;
 969         MTHCA_GET(size, outbox, QUERY_DEV_LIM_UAR_ENTRY_SZ_OFFSET);
 970         dev_lim->uar_scratch_entry_sz = size;
 971
 972         mthca_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n",
 973                   dev_lim->max_qps, dev_lim->reserved_qps, dev_lim->qpc_entry_sz);
 974         mthca_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n",
 975                   dev_lim->max_cqs, dev_lim->reserved_cqs, dev_lim->cqc_entry_sz);
 976         mthca_dbg(dev, "Max EQs: %d, reserved EQs: %d, entry size: %d\n",
 977                   dev_lim->max_eqs, dev_lim->reserved_eqs, dev_lim->eqc_entry_sz);
 978         mthca_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n",
 979                   dev_lim->reserved_mrws, dev_lim->reserved_mtts);
 980         mthca_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n",
 981                   dev_lim->max_pds, dev_lim->reserved_pds, dev_lim->reserved_uars);
 982         mthca_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n",
 983                   dev_lim->max_pds, dev_lim->reserved_mgms);
 984
 985         mthca_dbg(dev, "Flags: %08x\n", dev_lim->flags);
 986
 987         if (dev->hca_type == ARBEL_NATIVE) {
 988                 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSZ_SRQ_OFFSET);
 989                 dev_lim->hca.arbel.resize_srq = field & 1;
 990                 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SG_RQ_OFFSET);
 991                 dev_lim->max_sg = min_t(int, field, dev_lim->max_sg);
 992                 MTHCA_GET(size, outbox, QUERY_DEV_LIM_MTT_ENTRY_SZ_OFFSET);
 993                 MTHCA_GET(size, outbox, QUERY_DEV_LIM_MPT_ENTRY_SZ_OFFSET);
 994                 dev_lim->mpt_entry_sz = size;
 995                 MTHCA_GET(field, outbox, QUERY_DEV_LIM_PBL_SZ_OFFSET);
 996                 dev_lim->hca.arbel.max_pbl_sz = 1 << (field & 0x3f);
 997                 MTHCA_GET(dev_lim->hca.arbel.bmme_flags, outbox,
 998                           QUERY_DEV_LIM_BMME_FLAGS_OFFSET);
 999                 MTHCA_GET(dev_lim->hca.arbel.reserved_lkey, outbox,
1000                           QUERY_DEV_LIM_RSVD_LKEY_OFFSET);
1001                 MTHCA_GET(field, outbox, QUERY_DEV_LIM_LAMR_OFFSET);
1002                 dev_lim->hca.arbel.lam_required = field & 1;
1003                 MTHCA_GET(dev_lim->hca.arbel.max_icm_sz, outbox,
1004                           QUERY_DEV_LIM_MAX_ICM_SZ_OFFSET);
1005
1006                 if (dev_lim->hca.arbel.bmme_flags & 1)
1007                         mthca_dbg(dev, "Base MM extensions: yes "
1008                                   "(flags %d, max PBL %d, rsvd L_Key %08x)\n",
1009                                   dev_lim->hca.arbel.bmme_flags,
1010                                   dev_lim->hca.arbel.max_pbl_sz,
1011                                   dev_lim->hca.arbel.reserved_lkey);
1012                 else
1013                         mthca_dbg(dev, "Base MM extensions: no\n");
1014
1015                 mthca_dbg(dev, "Max ICM size %lld MB\n",
1016                           (unsigned long long) dev_lim->hca.arbel.max_icm_sz >> 20);
1017         } else {
1018                 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_AV_OFFSET);
1019                 dev_lim->hca.tavor.max_avs = 1 << (field & 0x3f);
1020                 dev_lim->mpt_entry_sz = MTHCA_MPT_ENTRY_SIZE;
1021         }
1022
1023 out:
1024         pci_free_consistent(dev->pdev, QUERY_DEV_LIM_OUT_SIZE, outbox, outdma);
1025         return err;
1026 }
1027
1028 int mthca_QUERY_ADAPTER(struct mthca_dev *dev,
1029                         struct mthca_adapter *adapter, u8 *status)
1030 {
1031         u32 *outbox;
1032         dma_addr_t outdma;
1033         int err;
1034
1035 #define QUERY_ADAPTER_OUT_SIZE             0x100
1036 #define QUERY_ADAPTER_VENDOR_ID_OFFSET     0x00
1037 #define QUERY_ADAPTER_DEVICE_ID_OFFSET     0x04
1038 #define QUERY_ADAPTER_REVISION_ID_OFFSET   0x08
1039 #define QUERY_ADAPTER_INTA_PIN_OFFSET      0x10
1040
1041         outbox = pci_alloc_consistent(dev->pdev, QUERY_ADAPTER_OUT_SIZE, &outdma);
1042         if (!outbox)
1043                 return -ENOMEM;
1044
1045         err = mthca_cmd_box(dev, 0, outdma, 0, 0, CMD_QUERY_ADAPTER,
1046                             CMD_TIME_CLASS_A, status);
1047
1048         if (err)
1049                 goto out;
1050
1051         MTHCA_GET(adapter->vendor_id, outbox, QUERY_ADAPTER_VENDOR_ID_OFFSET);
1052         MTHCA_GET(adapter->device_id, outbox, QUERY_ADAPTER_DEVICE_ID_OFFSET);
1053         MTHCA_GET(adapter->revision_id, outbox, QUERY_ADAPTER_REVISION_ID_OFFSET);
1054         MTHCA_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET);
1055
1056 out:
1057         pci_free_consistent(dev->pdev, QUERY_DEV_LIM_OUT_SIZE, outbox, outdma);
1058         return err;
1059 }
1060
1061 int mthca_INIT_HCA(struct mthca_dev *dev,
1062                    struct mthca_init_hca_param *param,
1063                    u8 *status)
1064 {
1065         u32 *inbox;
1066         dma_addr_t indma;
1067         int err;
1068
1069 #define INIT_HCA_IN_SIZE                 0x200
1070 #define INIT_HCA_FLAGS_OFFSET            0x014
1071 #define INIT_HCA_QPC_OFFSET              0x020
1072 #define  INIT_HCA_QPC_BASE_OFFSET        (INIT_HCA_QPC_OFFSET + 0x10)
1073 #define  INIT_HCA_LOG_QP_OFFSET          (INIT_HCA_QPC_OFFSET + 0x17)
1074 #define  INIT_HCA_EEC_BASE_OFFSET        (INIT_HCA_QPC_OFFSET + 0x20)
1075 #define  INIT_HCA_LOG_EEC_OFFSET         (INIT_HCA_QPC_OFFSET + 0x27)
1076 #define  INIT_HCA_SRQC_BASE_OFFSET       (INIT_HCA_QPC_OFFSET + 0x28)
1077 #define  INIT_HCA_LOG_SRQ_OFFSET         (INIT_HCA_QPC_OFFSET + 0x2f)
1078 #define  INIT_HCA_CQC_BASE_OFFSET        (INIT_HCA_QPC_OFFSET + 0x30)
1079 #define  INIT_HCA_LOG_CQ_OFFSET          (INIT_HCA_QPC_OFFSET + 0x37)
1080 #define  INIT_HCA_EQPC_BASE_OFFSET       (INIT_HCA_QPC_OFFSET + 0x40)
1081 #define  INIT_HCA_EEEC_BASE_OFFSET       (INIT_HCA_QPC_OFFSET + 0x50)
1082 #define  INIT_HCA_EQC_BASE_OFFSET        (INIT_HCA_QPC_OFFSET + 0x60)
1083 #define  INIT_HCA_LOG_EQ_OFFSET          (INIT_HCA_QPC_OFFSET + 0x67)
1084 #define  INIT_HCA_RDB_BASE_OFFSET        (INIT_HCA_QPC_OFFSET + 0x70)
1085 #define INIT_HCA_UDAV_OFFSET             0x0b0
1086 #define  INIT_HCA_UDAV_LKEY_OFFSET       (INIT_HCA_UDAV_OFFSET + 0x0)
1087 #define  INIT_HCA_UDAV_PD_OFFSET         (INIT_HCA_UDAV_OFFSET + 0x4)
1088 #define INIT_HCA_MCAST_OFFSET            0x0c0
1089 #define  INIT_HCA_MC_BASE_OFFSET         (INIT_HCA_MCAST_OFFSET + 0x00)
1090 #define  INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x12)
1091 #define  INIT_HCA_MC_HASH_SZ_OFFSET      (INIT_HCA_MCAST_OFFSET + 0x16)
1092 #define  INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b)
1093 #define INIT_HCA_TPT_OFFSET              0x0f0
1094 #define  INIT_HCA_MPT_BASE_OFFSET        (INIT_HCA_TPT_OFFSET + 0x00)
1095 #define  INIT_HCA_MTT_SEG_SZ_OFFSET      (INIT_HCA_TPT_OFFSET + 0x09)
1096 #define  INIT_HCA_LOG_MPT_SZ_OFFSET      (INIT_HCA_TPT_OFFSET + 0x0b)
1097 #define  INIT_HCA_MTT_BASE_OFFSET        (INIT_HCA_TPT_OFFSET + 0x10)
1098 #define INIT_HCA_UAR_OFFSET              0x120
1099 #define  INIT_HCA_UAR_BASE_OFFSET        (INIT_HCA_UAR_OFFSET + 0x00)
1100 #define  INIT_HCA_UARC_SZ_OFFSET         (INIT_HCA_UAR_OFFSET + 0x09)
1101 #define  INIT_HCA_LOG_UAR_SZ_OFFSET      (INIT_HCA_UAR_OFFSET + 0x0a)
1102 #define  INIT_HCA_UAR_PAGE_SZ_OFFSET     (INIT_HCA_UAR_OFFSET + 0x0b)
1103 #define  INIT_HCA_UAR_SCATCH_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x10)
1104 #define  INIT_HCA_UAR_CTX_BASE_OFFSET    (INIT_HCA_UAR_OFFSET + 0x18)
1105
1106         inbox = pci_alloc_consistent(dev->pdev, INIT_HCA_IN_SIZE, &indma);
1107         if (!inbox)
1108                 return -ENOMEM;
1109
1110         memset(inbox, 0, INIT_HCA_IN_SIZE);
1111
1112 #if defined(__LITTLE_ENDIAN)
1113         *(inbox + INIT_HCA_FLAGS_OFFSET / 4) &= ~cpu_to_be32(1 << 1);
1114 #elif defined(__BIG_ENDIAN)
1115         *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 1);
1116 #else
1117 #error Host endianness not defined
1118 #endif
1119         /* Check port for UD address vector: */
1120         *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1);
1121
1122         /* We leave wqe_quota, responder_exu, etc as 0 (default) */
1123
1124         /* QPC/EEC/CQC/EQC/RDB attributes */
1125
1126         MTHCA_PUT(inbox, param->qpc_base,     INIT_HCA_QPC_BASE_OFFSET);
1127         MTHCA_PUT(inbox, param->log_num_qps,  INIT_HCA_LOG_QP_OFFSET);
1128         MTHCA_PUT(inbox, param->eec_base,     INIT_HCA_EEC_BASE_OFFSET);
1129         MTHCA_PUT(inbox, param->log_num_eecs, INIT_HCA_LOG_EEC_OFFSET);
1130         MTHCA_PUT(inbox, param->srqc_base,    INIT_HCA_SRQC_BASE_OFFSET);
1131         MTHCA_PUT(inbox, param->log_num_srqs, INIT_HCA_LOG_SRQ_OFFSET);
1132         MTHCA_PUT(inbox, param->cqc_base,     INIT_HCA_CQC_BASE_OFFSET);
1133         MTHCA_PUT(inbox, param->log_num_cqs,  INIT_HCA_LOG_CQ_OFFSET);
1134         MTHCA_PUT(inbox, param->eqpc_base,    INIT_HCA_EQPC_BASE_OFFSET);
1135         MTHCA_PUT(inbox, param->eeec_base,    INIT_HCA_EEEC_BASE_OFFSET);
1136         MTHCA_PUT(inbox, param->eqc_base,     INIT_HCA_EQC_BASE_OFFSET);
1137         MTHCA_PUT(inbox, param->log_num_eqs,  INIT_HCA_LOG_EQ_OFFSET);
1138         MTHCA_PUT(inbox, param->rdb_base,     INIT_HCA_RDB_BASE_OFFSET);
1139
1140         /* UD AV attributes */
1141
1142         /* multicast attributes */
1143
1144         MTHCA_PUT(inbox, param->mc_base,         INIT_HCA_MC_BASE_OFFSET);
1145         MTHCA_PUT(inbox, param->log_mc_entry_sz, INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
1146         MTHCA_PUT(inbox, param->mc_hash_sz,      INIT_HCA_MC_HASH_SZ_OFFSET);
1147         MTHCA_PUT(inbox, param->log_mc_table_sz, INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
1148
1149         /* TPT attributes */
1150
1151         MTHCA_PUT(inbox, param->mpt_base,   INIT_HCA_MPT_BASE_OFFSET);
1152         if (dev->hca_type != ARBEL_NATIVE)
1153                 MTHCA_PUT(inbox, param->mtt_seg_sz, INIT_HCA_MTT_SEG_SZ_OFFSET);
1154         MTHCA_PUT(inbox, param->log_mpt_sz, INIT_HCA_LOG_MPT_SZ_OFFSET);
1155         MTHCA_PUT(inbox, param->mtt_base,   INIT_HCA_MTT_BASE_OFFSET);
1156
1157         /* UAR attributes */
1158         {
1159                 u8 uar_page_sz = PAGE_SHIFT - 12;
1160                 MTHCA_PUT(inbox, uar_page_sz, INIT_HCA_UAR_PAGE_SZ_OFFSET);
1161         }
1162
1163         MTHCA_PUT(inbox, param->uar_scratch_base, INIT_HCA_UAR_SCATCH_BASE_OFFSET);
1164
1165         if (dev->hca_type == ARBEL_NATIVE) {
1166                 MTHCA_PUT(inbox, param->log_uarc_sz, INIT_HCA_UARC_SZ_OFFSET);
1167                 MTHCA_PUT(inbox, param->log_uar_sz,  INIT_HCA_LOG_UAR_SZ_OFFSET);
1168                 MTHCA_PUT(inbox, param->uarc_base,   INIT_HCA_UAR_CTX_BASE_OFFSET);
1169         }
1170
1171         err = mthca_cmd(dev, indma, 0, 0, CMD_INIT_HCA,
1172                         HZ, status);
1173
1174         pci_free_consistent(dev->pdev, INIT_HCA_IN_SIZE, inbox, indma);
1175         return err;
1176 }
1177
1178 int mthca_INIT_IB(struct mthca_dev *dev,
1179                   struct mthca_init_ib_param *param,
1180                   int port, u8 *status)
1181 {
1182         u32 *inbox;
1183         dma_addr_t indma;
1184         int err;
1185         u32 flags;
1186
1187 #define INIT_IB_IN_SIZE          56
1188 #define INIT_IB_FLAGS_OFFSET     0x00
1189 #define INIT_IB_FLAG_SIG         (1 << 18)
1190 #define INIT_IB_FLAG_NG          (1 << 17)
1191 #define INIT_IB_FLAG_G0          (1 << 16)
1192 #define INIT_IB_FLAG_1X          (1 << 8)
1193 #define INIT_IB_FLAG_4X          (1 << 9)
1194 #define INIT_IB_FLAG_12X         (1 << 11)
1195 #define INIT_IB_VL_SHIFT         4
1196 #define INIT_IB_MTU_SHIFT        12
1197 #define INIT_IB_MAX_GID_OFFSET   0x06
1198 #define INIT_IB_MAX_PKEY_OFFSET  0x0a
1199 #define INIT_IB_GUID0_OFFSET     0x10
1200 #define INIT_IB_NODE_GUID_OFFSET 0x18
1201 #define INIT_IB_SI_GUID_OFFSET   0x20
1202
1203         inbox = pci_alloc_consistent(dev->pdev, INIT_IB_IN_SIZE, &indma);
1204         if (!inbox)
1205                 return -ENOMEM;
1206
1207         memset(inbox, 0, INIT_IB_IN_SIZE);
1208
1209         flags = 0;
1210         flags |= param->enable_1x     ? INIT_IB_FLAG_1X  : 0;
1211         flags |= param->enable_4x     ? INIT_IB_FLAG_4X  : 0;
1212         flags |= param->set_guid0     ? INIT_IB_FLAG_G0  : 0;
1213         flags |= param->set_node_guid ? INIT_IB_FLAG_NG  : 0;
1214         flags |= param->set_si_guid   ? INIT_IB_FLAG_SIG : 0;
1215         flags |= param->vl_cap << INIT_IB_VL_SHIFT;
1216         flags |= param->mtu_cap << INIT_IB_MTU_SHIFT;
1217         MTHCA_PUT(inbox, flags, INIT_IB_FLAGS_OFFSET);
1218
1219         MTHCA_PUT(inbox, param->gid_cap,   INIT_IB_MAX_GID_OFFSET);
1220         MTHCA_PUT(inbox, param->pkey_cap,  INIT_IB_MAX_PKEY_OFFSET);
1221         MTHCA_PUT(inbox, param->guid0,     INIT_IB_GUID0_OFFSET);
1222         MTHCA_PUT(inbox, param->node_guid, INIT_IB_NODE_GUID_OFFSET);
1223         MTHCA_PUT(inbox, param->si_guid,   INIT_IB_SI_GUID_OFFSET);
1224
1225         err = mthca_cmd(dev, indma, port, 0, CMD_INIT_IB,
1226                         CMD_TIME_CLASS_A, status);
1227
1228         pci_free_consistent(dev->pdev, INIT_HCA_IN_SIZE, inbox, indma);
1229         return err;
1230 }
1231
1232 int mthca_CLOSE_IB(struct mthca_dev *dev, int port, u8 *status)
1233 {
1234         return mthca_cmd(dev, 0, port, 0, CMD_CLOSE_IB, HZ, status);
1235 }
1236
1237 int mthca_CLOSE_HCA(struct mthca_dev *dev, int panic, u8 *status)
1238 {
1239         return mthca_cmd(dev, 0, 0, panic, CMD_CLOSE_HCA, HZ, status);
1240 }
1241
1242 int mthca_SET_IB(struct mthca_dev *dev, struct mthca_set_ib_param *param,
1243                  int port, u8 *status)
1244 {
1245         u32 *inbox;
1246         dma_addr_t indma;
1247         int err;
1248         u32 flags = 0;
1249
1250 #define SET_IB_IN_SIZE         0x40
1251 #define SET_IB_FLAGS_OFFSET    0x00
1252 #define SET_IB_FLAG_SIG        (1 << 18)
1253 #define SET_IB_FLAG_RQK        (1 <<  0)
1254 #define SET_IB_CAP_MASK_OFFSET 0x04
1255 #define SET_IB_SI_GUID_OFFSET  0x08
1256
1257         inbox = pci_alloc_consistent(dev->pdev, SET_IB_IN_SIZE, &indma);
1258         if (!inbox)
1259                 return -ENOMEM;
1260
1261         memset(inbox, 0, SET_IB_IN_SIZE);
1262
1263         flags |= param->set_si_guid     ? SET_IB_FLAG_SIG : 0;
1264         flags |= param->reset_qkey_viol ? SET_IB_FLAG_RQK : 0;
1265         MTHCA_PUT(inbox, flags, SET_IB_FLAGS_OFFSET);
1266
1267         MTHCA_PUT(inbox, param->cap_mask, SET_IB_CAP_MASK_OFFSET);
1268         MTHCA_PUT(inbox, param->si_guid,  SET_IB_SI_GUID_OFFSET);
1269
1270         err = mthca_cmd(dev, indma, port, 0, CMD_SET_IB,
1271                         CMD_TIME_CLASS_B, status);
1272
1273         pci_free_consistent(dev->pdev, INIT_HCA_IN_SIZE, inbox, indma);
1274         return err;
1275 }
1276
1277 int mthca_MAP_ICM(struct mthca_dev *dev, struct mthca_icm *icm, u64 virt, u8 *status)
1278 {
1279         return mthca_map_cmd(dev, CMD_MAP_ICM, icm, virt, status);
1280 }
1281
1282 int mthca_MAP_ICM_page(struct mthca_dev *dev, u64 dma_addr, u64 virt, u8 *status)
1283 {
1284         u64 *inbox;
1285         dma_addr_t indma;
1286         int err;
1287
1288         inbox = pci_alloc_consistent(dev->pdev, 16, &indma);
1289         if (!inbox)
1290                 return -ENOMEM;
1291
1292         inbox[0] = cpu_to_be64(virt);
1293         inbox[1] = cpu_to_be64(dma_addr);
1294
1295         err = mthca_cmd(dev, indma, 1, 0, CMD_MAP_ICM, CMD_TIME_CLASS_B, status);
1296
1297         pci_free_consistent(dev->pdev, 16, inbox, indma);
1298
1299         if (!err)
1300                 mthca_dbg(dev, "Mapped page at %llx for ICM.\n",
1301                           (unsigned long long) virt);
1302
1303         return err;
1304 }
1305
1306 int mthca_UNMAP_ICM(struct mthca_dev *dev, u64 virt, u32 page_count, u8 *status)
1307 {
1308         mthca_dbg(dev, "Unmapping %d pages at %llx from ICM.\n",
1309                   page_count, (unsigned long long) virt);
1310
1311         return mthca_cmd(dev, virt, page_count, 0, CMD_UNMAP_ICM, CMD_TIME_CLASS_B, status);
1312 }
1313
1314 int mthca_MAP_ICM_AUX(struct mthca_dev *dev, struct mthca_icm *icm, u8 *status)
1315 {
1316         return mthca_map_cmd(dev, CMD_MAP_ICM_AUX, icm, -1, status);
1317 }
1318
1319 int mthca_UNMAP_ICM_AUX(struct mthca_dev *dev, u8 *status)
1320 {
1321         return mthca_cmd(dev, 0, 0, 0, CMD_UNMAP_ICM_AUX, CMD_TIME_CLASS_B, status);
1322 }
1323
1324 int mthca_SET_ICM_SIZE(struct mthca_dev *dev, u64 icm_size, u64 *aux_pages,
1325                        u8 *status)
1326 {
1327         int ret = mthca_cmd_imm(dev, icm_size, aux_pages, 0, 0, CMD_SET_ICM_SIZE,
1328                                 CMD_TIME_CLASS_A, status);
1329
1330         if (ret || status)
1331                 return ret;
1332
1333         /*
1334          * Arbel page size is always 4 KB; round up number of system
1335          * pages needed.
1336          */
1337         *aux_pages = (*aux_pages + (1 << (PAGE_SHIFT - 12)) - 1) >> (PAGE_SHIFT - 12);
1338
1339         return 0;
1340 }
1341
1342 int mthca_SW2HW_MPT(struct mthca_dev *dev, void *mpt_entry,
1343                     int mpt_index, u8 *status)
1344 {
1345         dma_addr_t indma;
1346         int err;
1347
1348         indma = pci_map_single(dev->pdev, mpt_entry,
1349                                MTHCA_MPT_ENTRY_SIZE,
1350                                PCI_DMA_TODEVICE);
1351         if (pci_dma_mapping_error(indma))
1352                 return -ENOMEM;
1353
1354         err = mthca_cmd(dev, indma, mpt_index, 0, CMD_SW2HW_MPT,
1355                         CMD_TIME_CLASS_B, status);
1356
1357         pci_unmap_single(dev->pdev, indma,
1358                          MTHCA_MPT_ENTRY_SIZE, PCI_DMA_TODEVICE);
1359         return err;
1360 }
1361
1362 int mthca_HW2SW_MPT(struct mthca_dev *dev, void *mpt_entry,
1363                     int mpt_index, u8 *status)
1364 {
1365         dma_addr_t outdma = 0;
1366         int err;
1367
1368         if (mpt_entry) {
1369                 outdma = pci_map_single(dev->pdev, mpt_entry,
1370                                         MTHCA_MPT_ENTRY_SIZE,
1371                                         PCI_DMA_FROMDEVICE);
1372                 if (pci_dma_mapping_error(outdma))
1373                         return -ENOMEM;
1374         }
1375
1376         err = mthca_cmd_box(dev, 0, outdma, mpt_index, !mpt_entry,
1377                             CMD_HW2SW_MPT,
1378                             CMD_TIME_CLASS_B, status);
1379
1380         if (mpt_entry)
1381                 pci_unmap_single(dev->pdev, outdma,
1382                                  MTHCA_MPT_ENTRY_SIZE,
1383                                  PCI_DMA_FROMDEVICE);
1384         return err;
1385 }
1386
1387 int mthca_WRITE_MTT(struct mthca_dev *dev, u64 *mtt_entry,
1388                     int num_mtt, u8 *status)
1389 {
1390         dma_addr_t indma;
1391         int err;
1392
1393         indma = pci_map_single(dev->pdev, mtt_entry,
1394                                (num_mtt + 2) * 8,
1395                                PCI_DMA_TODEVICE);
1396         if (pci_dma_mapping_error(indma))
1397                 return -ENOMEM;
1398
1399         err = mthca_cmd(dev, indma, num_mtt, 0, CMD_WRITE_MTT,
1400                         CMD_TIME_CLASS_B, status);
1401
1402         pci_unmap_single(dev->pdev, indma,
1403                          (num_mtt + 2) * 8, PCI_DMA_TODEVICE);
1404         return err;
1405 }
1406
1407 int mthca_MAP_EQ(struct mthca_dev *dev, u64 event_mask, int unmap,
1408                  int eq_num, u8 *status)
1409 {
1410         mthca_dbg(dev, "%s mask %016llx for eqn %d\n",
1411                   unmap ? "Clearing" : "Setting",
1412                   (unsigned long long) event_mask, eq_num);
1413         return mthca_cmd(dev, event_mask, (unmap << 31) | eq_num,
1414                          0, CMD_MAP_EQ, CMD_TIME_CLASS_B, status);
1415 }
1416
1417 int mthca_SW2HW_EQ(struct mthca_dev *dev, void *eq_context,
1418                    int eq_num, u8 *status)
1419 {
1420         dma_addr_t indma;
1421         int err;
1422
1423         indma = pci_map_single(dev->pdev, eq_context,
1424                                MTHCA_EQ_CONTEXT_SIZE,
1425                                PCI_DMA_TODEVICE);
1426         if (pci_dma_mapping_error(indma))
1427                 return -ENOMEM;
1428
1429         err = mthca_cmd(dev, indma, eq_num, 0, CMD_SW2HW_EQ,
1430                         CMD_TIME_CLASS_A, status);
1431
1432         pci_unmap_single(dev->pdev, indma,
1433                          MTHCA_EQ_CONTEXT_SIZE, PCI_DMA_TODEVICE);
1434         return err;
1435 }
1436
1437 int mthca_HW2SW_EQ(struct mthca_dev *dev, void *eq_context,
1438                    int eq_num, u8 *status)
1439 {
1440         dma_addr_t outdma = 0;
1441         int err;
1442
1443         outdma = pci_map_single(dev->pdev, eq_context,
1444                                 MTHCA_EQ_CONTEXT_SIZE,
1445                                 PCI_DMA_FROMDEVICE);
1446         if (pci_dma_mapping_error(outdma))
1447                 return -ENOMEM;
1448
1449         err = mthca_cmd_box(dev, 0, outdma, eq_num, 0,
1450                             CMD_HW2SW_EQ,
1451                             CMD_TIME_CLASS_A, status);
1452
1453         pci_unmap_single(dev->pdev, outdma,
1454                          MTHCA_EQ_CONTEXT_SIZE,
1455                          PCI_DMA_FROMDEVICE);
1456         return err;
1457 }
1458
1459 int mthca_SW2HW_CQ(struct mthca_dev *dev, void *cq_context,
1460                    int cq_num, u8 *status)
1461 {
1462         dma_addr_t indma;
1463         int err;
1464
1465         indma = pci_map_single(dev->pdev, cq_context,
1466                                MTHCA_CQ_CONTEXT_SIZE,
1467                                PCI_DMA_TODEVICE);
1468         if (pci_dma_mapping_error(indma))
1469                 return -ENOMEM;
1470
1471         err = mthca_cmd(dev, indma, cq_num, 0, CMD_SW2HW_CQ,
1472                         CMD_TIME_CLASS_A, status);
1473
1474         pci_unmap_single(dev->pdev, indma,
1475                          MTHCA_CQ_CONTEXT_SIZE, PCI_DMA_TODEVICE);
1476         return err;
1477 }
1478
1479 int mthca_HW2SW_CQ(struct mthca_dev *dev, void *cq_context,
1480                    int cq_num, u8 *status)
1481 {
1482         dma_addr_t outdma = 0;
1483         int err;
1484
1485         outdma = pci_map_single(dev->pdev, cq_context,
1486                                 MTHCA_CQ_CONTEXT_SIZE,
1487                                 PCI_DMA_FROMDEVICE);
1488         if (pci_dma_mapping_error(outdma))
1489                 return -ENOMEM;
1490
1491         err = mthca_cmd_box(dev, 0, outdma, cq_num, 0,
1492                             CMD_HW2SW_CQ,
1493                             CMD_TIME_CLASS_A, status);
1494
1495         pci_unmap_single(dev->pdev, outdma,
1496                          MTHCA_CQ_CONTEXT_SIZE,
1497                          PCI_DMA_FROMDEVICE);
1498         return err;
1499 }
1500
1501 int mthca_MODIFY_QP(struct mthca_dev *dev, int trans, u32 num,
1502                     int is_ee, void *qp_context, u32 optmask,
1503                     u8 *status)
1504 {
1505         static const u16 op[] = {
1506                 [MTHCA_TRANS_RST2INIT]  = CMD_RST2INIT_QPEE,
1507                 [MTHCA_TRANS_INIT2INIT] = CMD_INIT2INIT_QPEE,
1508                 [MTHCA_TRANS_INIT2RTR]  = CMD_INIT2RTR_QPEE,
1509                 [MTHCA_TRANS_RTR2RTS]   = CMD_RTR2RTS_QPEE,
1510                 [MTHCA_TRANS_RTS2RTS]   = CMD_RTS2RTS_QPEE,
1511                 [MTHCA_TRANS_SQERR2RTS] = CMD_SQERR2RTS_QPEE,
1512                 [MTHCA_TRANS_ANY2ERR]   = CMD_2ERR_QPEE,
1513                 [MTHCA_TRANS_RTS2SQD]   = CMD_RTS2SQD_QPEE,
1514                 [MTHCA_TRANS_SQD2SQD]   = CMD_SQD2SQD_QPEE,
1515                 [MTHCA_TRANS_SQD2RTS]   = CMD_SQD2RTS_QPEE,
1516                 [MTHCA_TRANS_ANY2RST]   = CMD_ERR2RST_QPEE
1517         };
1518         u8 op_mod = 0;
1519
1520         dma_addr_t indma;
1521         int err;
1522
1523         if (trans < 0 || trans >= ARRAY_SIZE(op))
1524                 return -EINVAL;
1525
1526         if (trans == MTHCA_TRANS_ANY2RST) {
1527                 indma  = 0;
1528                 op_mod = 3;     /* don't write outbox, any->reset */
1529
1530                 /* For debugging */
1531                 qp_context = pci_alloc_consistent(dev->pdev, MTHCA_QP_CONTEXT_SIZE,
1532                                                   &indma);
1533                 op_mod = 2;     /* write outbox, any->reset */
1534         } else {
1535                 indma = pci_map_single(dev->pdev, qp_context,
1536                                        MTHCA_QP_CONTEXT_SIZE,
1537                                        PCI_DMA_TODEVICE);
1538                 if (pci_dma_mapping_error(indma))
1539                         return -ENOMEM;
1540
1541                 if (0) {
1542                         int i;
1543                         mthca_dbg(dev, "Dumping QP context:\n");
1544                         printk("  opt param mask: %08x\n", be32_to_cpup(qp_context));
1545                         for (i = 0; i < 0x100 / 4; ++i) {
1546                                 if (i % 8 == 0)
1547                                         printk("  [%02x] ", i * 4);
1548                                 printk(" %08x", be32_to_cpu(((u32 *) qp_context)[i + 2]));
1549                                 if ((i + 1) % 8 == 0)
1550                                         printk("\n");
1551                         }
1552                 }
1553         }
1554
1555         if (trans == MTHCA_TRANS_ANY2RST) {
1556                 err = mthca_cmd_box(dev, 0, indma, (!!is_ee << 24) | num,
1557                                     op_mod, op[trans], CMD_TIME_CLASS_C, status);
1558
1559                 if (0) {
1560                         int i;
1561                         mthca_dbg(dev, "Dumping QP context:\n");
1562                         printk(" %08x\n", be32_to_cpup(qp_context));
1563                         for (i = 0; i < 0x100 / 4; ++i) {
1564                                 if (i % 8 == 0)
1565                                         printk("[%02x] ", i * 4);
1566                                 printk(" %08x", be32_to_cpu(((u32 *) qp_context)[i + 2]));
1567                                 if ((i + 1) % 8 == 0)
1568                                         printk("\n");
1569                         }
1570                 }
1571
1572         } else
1573                 err = mthca_cmd(dev, indma, (!!is_ee << 24) | num,
1574                                 op_mod, op[trans], CMD_TIME_CLASS_C, status);
1575
1576         if (trans != MTHCA_TRANS_ANY2RST)
1577                 pci_unmap_single(dev->pdev, indma,
1578                                  MTHCA_QP_CONTEXT_SIZE, PCI_DMA_TODEVICE);
1579         else
1580                 pci_free_consistent(dev->pdev, MTHCA_QP_CONTEXT_SIZE,
1581                                     qp_context, indma);
1582         return err;
1583 }
1584
1585 int mthca_QUERY_QP(struct mthca_dev *dev, u32 num, int is_ee,
1586                    void *qp_context, u8 *status)
1587 {
1588         dma_addr_t outdma = 0;
1589         int err;
1590
1591         outdma = pci_map_single(dev->pdev, qp_context,
1592                                 MTHCA_QP_CONTEXT_SIZE,
1593                                 PCI_DMA_FROMDEVICE);
1594         if (pci_dma_mapping_error(outdma))
1595                 return -ENOMEM;
1596
1597         err = mthca_cmd_box(dev, 0, outdma, (!!is_ee << 24) | num, 0,
1598                             CMD_QUERY_QPEE,
1599                             CMD_TIME_CLASS_A, status);
1600
1601         pci_unmap_single(dev->pdev, outdma,
1602                          MTHCA_QP_CONTEXT_SIZE,
1603                          PCI_DMA_FROMDEVICE);
1604         return err;
1605 }
1606
1607 int mthca_CONF_SPECIAL_QP(struct mthca_dev *dev, int type, u32 qpn,
1608                           u8 *status)
1609 {
1610         u8 op_mod;
1611
1612         switch (type) {
1613         case IB_QPT_SMI:
1614                 op_mod = 0;
1615                 break;
1616         case IB_QPT_GSI:
1617                 op_mod = 1;
1618                 break;
1619         case IB_QPT_RAW_IPV6:
1620                 op_mod = 2;
1621                 break;
1622         case IB_QPT_RAW_ETY:
1623                 op_mod = 3;
1624                 break;
1625         default:
1626                 return -EINVAL;
1627         }
1628
1629         return mthca_cmd(dev, 0, qpn, op_mod, CMD_CONF_SPECIAL_QP,
1630                          CMD_TIME_CLASS_B, status);
1631 }
1632
1633 int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey,
1634                   int port, struct ib_wc* in_wc, struct ib_grh* in_grh,
1635                   void *in_mad, void *response_mad, u8 *status)
1636 {
1637         void *box;
1638         dma_addr_t dma;
1639         int err;
1640         u32 in_modifier = port;
1641         u8 op_modifier = 0;
1642
1643 #define MAD_IFC_BOX_SIZE      0x400
1644 #define MAD_IFC_MY_QPN_OFFSET 0x100
1645 #define MAD_IFC_RQPN_OFFSET   0x104
1646 #define MAD_IFC_SL_OFFSET     0x108
1647 #define MAD_IFC_G_PATH_OFFSET 0x109
1648 #define MAD_IFC_RLID_OFFSET   0x10a
1649 #define MAD_IFC_PKEY_OFFSET   0x10e
1650 #define MAD_IFC_GRH_OFFSET    0x140
1651
1652         box = pci_alloc_consistent(dev->pdev, MAD_IFC_BOX_SIZE, &dma);
1653         if (!box)
1654                 return -ENOMEM;
1655
1656         memcpy(box, in_mad, 256);
1657
1658         /*
1659          * Key check traps can't be generated unless we have in_wc to
1660          * tell us where to send the trap.
1661          */
1662         if (ignore_mkey || !in_wc)
1663                 op_modifier |= 0x1;
1664         if (ignore_bkey || !in_wc)
1665                 op_modifier |= 0x2;
1666
1667         if (in_wc) {
1668                 u8 val;
1669
1670                 memset(box + 256, 0, 256);
1671
1672                 MTHCA_PUT(box, in_wc->qp_num,     MAD_IFC_MY_QPN_OFFSET);
1673                 MTHCA_PUT(box, in_wc->src_qp,     MAD_IFC_RQPN_OFFSET);
1674
1675                 val = in_wc->sl << 4;
1676                 MTHCA_PUT(box, val,               MAD_IFC_SL_OFFSET);
1677
1678                 val = in_wc->dlid_path_bits |
1679                         (in_wc->wc_flags & IB_WC_GRH ? 0x80 : 0);
1680                 MTHCA_PUT(box, val,               MAD_IFC_GRH_OFFSET);
1681
1682                 MTHCA_PUT(box, in_wc->slid,       MAD_IFC_RLID_OFFSET);
1683                 MTHCA_PUT(box, in_wc->pkey_index, MAD_IFC_PKEY_OFFSET);
1684
1685                 if (in_grh)
1686                         memcpy((u8 *) box + MAD_IFC_GRH_OFFSET, in_grh, 40);
1687
1688                 op_modifier |= 0x10;
1689
1690                 in_modifier |= in_wc->slid << 16;
1691         }
1692
1693         err = mthca_cmd_box(dev, dma, dma + 512, in_modifier, op_modifier,
1694                             CMD_MAD_IFC, CMD_TIME_CLASS_C, status);
1695
1696         if (!err && !*status)
1697                 memcpy(response_mad, box + 512, 256);
1698
1699         pci_free_consistent(dev->pdev, MAD_IFC_BOX_SIZE, box, dma);
1700         return err;
1701 }
1702
1703 int mthca_READ_MGM(struct mthca_dev *dev, int index, void *mgm,
1704                    u8 *status)
1705 {
1706         dma_addr_t outdma = 0;
1707         int err;
1708
1709         outdma = pci_map_single(dev->pdev, mgm,
1710                                 MTHCA_MGM_ENTRY_SIZE,
1711                                 PCI_DMA_FROMDEVICE);
1712         if (pci_dma_mapping_error(outdma))
1713                 return -ENOMEM;
1714
1715         err = mthca_cmd_box(dev, 0, outdma, index, 0,
1716                             CMD_READ_MGM,
1717                             CMD_TIME_CLASS_A, status);
1718
1719         pci_unmap_single(dev->pdev, outdma,
1720                          MTHCA_MGM_ENTRY_SIZE,
1721                          PCI_DMA_FROMDEVICE);
1722         return err;
1723 }
1724
1725 int mthca_WRITE_MGM(struct mthca_dev *dev, int index, void *mgm,
1726                     u8 *status)
1727 {
1728         dma_addr_t indma;
1729         int err;
1730
1731         indma = pci_map_single(dev->pdev, mgm,
1732                                MTHCA_MGM_ENTRY_SIZE,
1733                                PCI_DMA_TODEVICE);
1734         if (pci_dma_mapping_error(indma))
1735                 return -ENOMEM;
1736
1737         err = mthca_cmd(dev, indma, index, 0, CMD_WRITE_MGM,
1738                         CMD_TIME_CLASS_A, status);
1739
1740         pci_unmap_single(dev->pdev, indma,
1741                          MTHCA_MGM_ENTRY_SIZE, PCI_DMA_TODEVICE);
1742         return err;
1743 }
1744
1745 int mthca_MGID_HASH(struct mthca_dev *dev, void *gid, u16 *hash,
1746                     u8 *status)
1747 {
1748         dma_addr_t indma;
1749         u64 imm;
1750         int err;
1751
1752         indma = pci_map_single(dev->pdev, gid, 16, PCI_DMA_TODEVICE);
1753         if (pci_dma_mapping_error(indma))
1754                 return -ENOMEM;
1755
1756         err = mthca_cmd_imm(dev, indma, &imm, 0, 0, CMD_MGID_HASH,
1757                             CMD_TIME_CLASS_A, status);
1758         *hash = imm;
1759
1760         pci_unmap_single(dev->pdev, indma, 16, PCI_DMA_TODEVICE);
1761         return err;
1762 }
1763
1764 int mthca_NOP(struct mthca_dev *dev, u8 *status)
1765 {
1766         return mthca_cmd(dev, 0, 0x1f, 0, CMD_NOP, msecs_to_jiffies(100), status);
1767 }