1 /* 2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. 3 * Copyright (c) 2005 Mellanox Technologies. All rights reserved. 4 * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved. 5 * 6 * This software is available to you under a choice of one of two 7 * licenses. You may choose to be licensed under the terms of the GNU 8 * General Public License (GPL) Version 2, available from the file 9 * COPYING in the main directory of this source tree, or the 10 * OpenIB.org BSD license below: 11 * 12 * Redistribution and use in source and binary forms, with or 13 * without modification, are permitted provided that the following 14 * conditions are met: 15 * 16 * - Redistributions of source code must retain the above 17 * copyright notice, this list of conditions and the following 18 * disclaimer. 19 * 20 * - Redistributions in binary form must reproduce the above 21 * copyright notice, this list of conditions and the following 22 * disclaimer in the documentation and/or other materials 23 * provided with the distribution. 24 * 25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32 * SOFTWARE. 33 * 34 * $Id: mthca_cmd.c 1349 2004-12-16 21:09:43Z roland $ 35 */ 36 37 #include <linux/completion.h> 38 #include <linux/pci.h> 39 #include <linux/errno.h> 40 #include <linux/sched.h> 41 #include <asm/io.h> 42 #include <rdma/ib_mad.h> 43 44 #include "mthca_dev.h" 45 #include "mthca_config_reg.h" 46 #include "mthca_cmd.h" 47 #include "mthca_memfree.h" 48 49 #define CMD_POLL_TOKEN 0xffff 50 51 enum { 52 HCR_IN_PARAM_OFFSET = 0x00, 53 HCR_IN_MODIFIER_OFFSET = 0x08, 54 HCR_OUT_PARAM_OFFSET = 0x0c, 55 HCR_TOKEN_OFFSET = 0x14, 56 HCR_STATUS_OFFSET = 0x18, 57 58 HCR_OPMOD_SHIFT = 12, 59 HCA_E_BIT = 22, 60 HCR_GO_BIT = 23 61 }; 62 63 enum { 64 /* initialization and general commands */ 65 CMD_SYS_EN = 0x1, 66 CMD_SYS_DIS = 0x2, 67 CMD_MAP_FA = 0xfff, 68 CMD_UNMAP_FA = 0xffe, 69 CMD_RUN_FW = 0xff6, 70 CMD_MOD_STAT_CFG = 0x34, 71 CMD_QUERY_DEV_LIM = 0x3, 72 CMD_QUERY_FW = 0x4, 73 CMD_ENABLE_LAM = 0xff8, 74 CMD_DISABLE_LAM = 0xff7, 75 CMD_QUERY_DDR = 0x5, 76 CMD_QUERY_ADAPTER = 0x6, 77 CMD_INIT_HCA = 0x7, 78 CMD_CLOSE_HCA = 0x8, 79 CMD_INIT_IB = 0x9, 80 CMD_CLOSE_IB = 0xa, 81 CMD_QUERY_HCA = 0xb, 82 CMD_SET_IB = 0xc, 83 CMD_ACCESS_DDR = 0x2e, 84 CMD_MAP_ICM = 0xffa, 85 CMD_UNMAP_ICM = 0xff9, 86 CMD_MAP_ICM_AUX = 0xffc, 87 CMD_UNMAP_ICM_AUX = 0xffb, 88 CMD_SET_ICM_SIZE = 0xffd, 89 90 /* TPT commands */ 91 CMD_SW2HW_MPT = 0xd, 92 CMD_QUERY_MPT = 0xe, 93 CMD_HW2SW_MPT = 0xf, 94 CMD_READ_MTT = 0x10, 95 CMD_WRITE_MTT = 0x11, 96 CMD_SYNC_TPT = 0x2f, 97 98 /* EQ commands */ 99 CMD_MAP_EQ = 0x12, 100 CMD_SW2HW_EQ = 0x13, 101 CMD_HW2SW_EQ = 0x14, 102 CMD_QUERY_EQ = 0x15, 103 104 /* CQ commands */ 105 CMD_SW2HW_CQ = 0x16, 106 CMD_HW2SW_CQ = 0x17, 107 CMD_QUERY_CQ = 0x18, 108 CMD_RESIZE_CQ = 0x2c, 109 110 /* SRQ commands */ 111 CMD_SW2HW_SRQ = 0x35, 112 CMD_HW2SW_SRQ = 0x36, 113 CMD_QUERY_SRQ = 0x37, 114 CMD_ARM_SRQ = 0x40, 115 116 /* QP/EE commands */ 117 CMD_RST2INIT_QPEE = 0x19, 118 CMD_INIT2RTR_QPEE = 0x1a, 119 CMD_RTR2RTS_QPEE = 0x1b, 120 CMD_RTS2RTS_QPEE = 0x1c, 121 CMD_SQERR2RTS_QPEE = 0x1d, 122 CMD_2ERR_QPEE = 0x1e, 123 CMD_RTS2SQD_QPEE = 0x1f, 124 CMD_SQD2SQD_QPEE = 0x38, 125 CMD_SQD2RTS_QPEE = 0x20, 126 CMD_ERR2RST_QPEE = 0x21, 127 CMD_QUERY_QPEE = 0x22, 128 CMD_INIT2INIT_QPEE = 0x2d, 129 CMD_SUSPEND_QPEE = 0x32, 130 CMD_UNSUSPEND_QPEE = 0x33, 131 /* special QPs and management commands */ 132 CMD_CONF_SPECIAL_QP = 0x23, 133 CMD_MAD_IFC = 0x24, 134 135 /* multicast commands */ 136 CMD_READ_MGM = 0x25, 137 CMD_WRITE_MGM = 0x26, 138 CMD_MGID_HASH = 0x27, 139 140 /* miscellaneous commands */ 141 CMD_DIAG_RPRT = 0x30, 142 CMD_NOP = 0x31, 143 144 /* debug commands */ 145 CMD_QUERY_DEBUG_MSG = 0x2a, 146 CMD_SET_DEBUG_MSG = 0x2b, 147 }; 148 149 /* 150 * According to Mellanox code, FW may be starved and never complete 151 * commands. So we can't use strict timeouts described in PRM -- we 152 * just arbitrarily select 60 seconds for now. 153 */ 154 #if 0 155 /* 156 * Round up and add 1 to make sure we get the full wait time (since we 157 * will be starting in the middle of a jiffy) 158 */ 159 enum { 160 CMD_TIME_CLASS_A = (HZ + 999) / 1000 + 1, 161 CMD_TIME_CLASS_B = (HZ + 99) / 100 + 1, 162 CMD_TIME_CLASS_C = (HZ + 9) / 10 + 1 163 }; 164 #else 165 enum { 166 CMD_TIME_CLASS_A = 60 * HZ, 167 CMD_TIME_CLASS_B = 60 * HZ, 168 CMD_TIME_CLASS_C = 60 * HZ 169 }; 170 #endif 171 172 enum { 173 GO_BIT_TIMEOUT = HZ * 10 174 }; 175 176 struct mthca_cmd_context { 177 struct completion done; 178 int result; 179 int next; 180 u64 out_param; 181 u16 token; 182 u8 status; 183 }; 184 185 static int fw_cmd_doorbell = 0; 186 module_param(fw_cmd_doorbell, int, 0644); 187 MODULE_PARM_DESC(fw_cmd_doorbell, "post FW commands through doorbell page if nonzero " 188 "(and supported by FW)"); 189 190 static inline int go_bit(struct mthca_dev *dev) 191 { 192 return readl(dev->hcr + HCR_STATUS_OFFSET) & 193 swab32(1 << HCR_GO_BIT); 194 } 195 196 static void mthca_cmd_post_dbell(struct mthca_dev *dev, 197 u64 in_param, 198 u64 out_param, 199 u32 in_modifier, 200 u8 op_modifier, 201 u16 op, 202 u16 token) 203 { 204 void __iomem *ptr = dev->cmd.dbell_map; 205 u16 *offs = dev->cmd.dbell_offsets; 206 207 __raw_writel((__force u32) cpu_to_be32(in_param >> 32), ptr + offs[0]); 208 wmb(); 209 __raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), ptr + offs[1]); 210 wmb(); 211 __raw_writel((__force u32) cpu_to_be32(in_modifier), ptr + offs[2]); 212 wmb(); 213 __raw_writel((__force u32) cpu_to_be32(out_param >> 32), ptr + offs[3]); 214 wmb(); 215 __raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), ptr + offs[4]); 216 wmb(); 217 __raw_writel((__force u32) cpu_to_be32(token << 16), ptr + offs[5]); 218 wmb(); 219 __raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) | 220 (1 << HCA_E_BIT) | 221 (op_modifier << HCR_OPMOD_SHIFT) | 222 op), ptr + offs[6]); 223 wmb(); 224 __raw_writel((__force u32) 0, ptr + offs[7]); 225 wmb(); 226 } 227 228 static int mthca_cmd_post_hcr(struct mthca_dev *dev, 229 u64 in_param, 230 u64 out_param, 231 u32 in_modifier, 232 u8 op_modifier, 233 u16 op, 234 u16 token, 235 int event) 236 { 237 if (event) { 238 unsigned long end = jiffies + GO_BIT_TIMEOUT; 239 240 while (go_bit(dev) && time_before(jiffies, end)) { 241 set_current_state(TASK_RUNNING); 242 schedule(); 243 } 244 } 245 246 if (go_bit(dev)) 247 return -EAGAIN; 248 249 /* 250 * We use writel (instead of something like memcpy_toio) 251 * because writes of less than 32 bits to the HCR don't work 252 * (and some architectures such as ia64 implement memcpy_toio 253 * in terms of writeb). 254 */ 255 __raw_writel((__force u32) cpu_to_be32(in_param >> 32), dev->hcr + 0 * 4); 256 __raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), dev->hcr + 1 * 4); 257 __raw_writel((__force u32) cpu_to_be32(in_modifier), dev->hcr + 2 * 4); 258 __raw_writel((__force u32) cpu_to_be32(out_param >> 32), dev->hcr + 3 * 4); 259 __raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), dev->hcr + 4 * 4); 260 __raw_writel((__force u32) cpu_to_be32(token << 16), dev->hcr + 5 * 4); 261 262 /* __raw_writel may not order writes. */ 263 wmb(); 264 265 __raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) | 266 (event ? (1 << HCA_E_BIT) : 0) | 267 (op_modifier << HCR_OPMOD_SHIFT) | 268 op), dev->hcr + 6 * 4); 269 270 return 0; 271 } 272 273 static int mthca_cmd_post(struct mthca_dev *dev, 274 u64 in_param, 275 u64 out_param, 276 u32 in_modifier, 277 u8 op_modifier, 278 u16 op, 279 u16 token, 280 int event) 281 { 282 int err = 0; 283 284 mutex_lock(&dev->cmd.hcr_mutex); 285 286 if (event && dev->cmd.flags & MTHCA_CMD_POST_DOORBELLS && fw_cmd_doorbell) 287 mthca_cmd_post_dbell(dev, in_param, out_param, in_modifier, 288 op_modifier, op, token); 289 else 290 err = mthca_cmd_post_hcr(dev, in_param, out_param, in_modifier, 291 op_modifier, op, token, event); 292 293 /* 294 * Make sure that our HCR writes don't get mixed in with 295 * writes from another CPU starting a FW command. 296 */ 297 mmiowb(); 298 299 mutex_unlock(&dev->cmd.hcr_mutex); 300 return err; 301 } 302 303 static int mthca_cmd_poll(struct mthca_dev *dev, 304 u64 in_param, 305 u64 *out_param, 306 int out_is_imm, 307 u32 in_modifier, 308 u8 op_modifier, 309 u16 op, 310 unsigned long timeout, 311 u8 *status) 312 { 313 int err = 0; 314 unsigned long end; 315 316 down(&dev->cmd.poll_sem); 317 318 err = mthca_cmd_post(dev, in_param, 319 out_param ? *out_param : 0, 320 in_modifier, op_modifier, 321 op, CMD_POLL_TOKEN, 0); 322 if (err) 323 goto out; 324 325 end = timeout + jiffies; 326 while (go_bit(dev) && time_before(jiffies, end)) { 327 set_current_state(TASK_RUNNING); 328 schedule(); 329 } 330 331 if (go_bit(dev)) { 332 err = -EBUSY; 333 goto out; 334 } 335 336 if (out_is_imm) 337 *out_param = 338 (u64) be32_to_cpu((__force __be32) 339 __raw_readl(dev->hcr + HCR_OUT_PARAM_OFFSET)) << 32 | 340 (u64) be32_to_cpu((__force __be32) 341 __raw_readl(dev->hcr + HCR_OUT_PARAM_OFFSET + 4)); 342 343 *status = be32_to_cpu((__force __be32) __raw_readl(dev->hcr + HCR_STATUS_OFFSET)) >> 24; 344 345 out: 346 up(&dev->cmd.poll_sem); 347 return err; 348 } 349 350 void mthca_cmd_event(struct mthca_dev *dev, 351 u16 token, 352 u8 status, 353 u64 out_param) 354 { 355 struct mthca_cmd_context *context = 356 &dev->cmd.context[token & dev->cmd.token_mask]; 357 358 /* previously timed out command completing at long last */ 359 if (token != context->token) 360 return; 361 362 context->result = 0; 363 context->status = status; 364 context->out_param = out_param; 365 366 complete(&context->done); 367 } 368 369 static int mthca_cmd_wait(struct mthca_dev *dev, 370 u64 in_param, 371 u64 *out_param, 372 int out_is_imm, 373 u32 in_modifier, 374 u8 op_modifier, 375 u16 op, 376 unsigned long timeout, 377 u8 *status) 378 { 379 int err = 0; 380 struct mthca_cmd_context *context; 381 382 down(&dev->cmd.event_sem); 383 384 spin_lock(&dev->cmd.context_lock); 385 BUG_ON(dev->cmd.free_head < 0); 386 context = &dev->cmd.context[dev->cmd.free_head]; 387 context->token += dev->cmd.token_mask + 1; 388 dev->cmd.free_head = context->next; 389 spin_unlock(&dev->cmd.context_lock); 390 391 init_completion(&context->done); 392 393 err = mthca_cmd_post(dev, in_param, 394 out_param ? *out_param : 0, 395 in_modifier, op_modifier, 396 op, context->token, 1); 397 if (err) 398 goto out; 399 400 if (!wait_for_completion_timeout(&context->done, timeout)) { 401 err = -EBUSY; 402 goto out; 403 } 404 405 err = context->result; 406 if (err) 407 goto out; 408 409 *status = context->status; 410 if (*status) 411 mthca_dbg(dev, "Command %02x completed with status %02x\n", 412 op, *status); 413 414 if (out_is_imm) 415 *out_param = context->out_param; 416 417 out: 418 spin_lock(&dev->cmd.context_lock); 419 context->next = dev->cmd.free_head; 420 dev->cmd.free_head = context - dev->cmd.context; 421 spin_unlock(&dev->cmd.context_lock); 422 423 up(&dev->cmd.event_sem); 424 return err; 425 } 426 427 /* Invoke a command with an output mailbox */ 428 static int mthca_cmd_box(struct mthca_dev *dev, 429 u64 in_param, 430 u64 out_param, 431 u32 in_modifier, 432 u8 op_modifier, 433 u16 op, 434 unsigned long timeout, 435 u8 *status) 436 { 437 if (dev->cmd.flags & MTHCA_CMD_USE_EVENTS) 438 return mthca_cmd_wait(dev, in_param, &out_param, 0, 439 in_modifier, op_modifier, op, 440 timeout, status); 441 else 442 return mthca_cmd_poll(dev, in_param, &out_param, 0, 443 in_modifier, op_modifier, op, 444 timeout, status); 445 } 446 447 /* Invoke a command with no output parameter */ 448 static int mthca_cmd(struct mthca_dev *dev, 449 u64 in_param, 450 u32 in_modifier, 451 u8 op_modifier, 452 u16 op, 453 unsigned long timeout, 454 u8 *status) 455 { 456 return mthca_cmd_box(dev, in_param, 0, in_modifier, 457 op_modifier, op, timeout, status); 458 } 459 460 /* 461 * Invoke a command with an immediate output parameter (and copy the 462 * output into the caller's out_param pointer after the command 463 * executes). 464 */ 465 static int mthca_cmd_imm(struct mthca_dev *dev, 466 u64 in_param, 467 u64 *out_param, 468 u32 in_modifier, 469 u8 op_modifier, 470 u16 op, 471 unsigned long timeout, 472 u8 *status) 473 { 474 if (dev->cmd.flags & MTHCA_CMD_USE_EVENTS) 475 return mthca_cmd_wait(dev, in_param, out_param, 1, 476 in_modifier, op_modifier, op, 477 timeout, status); 478 else 479 return mthca_cmd_poll(dev, in_param, out_param, 1, 480 in_modifier, op_modifier, op, 481 timeout, status); 482 } 483 484 int mthca_cmd_init(struct mthca_dev *dev) 485 { 486 mutex_init(&dev->cmd.hcr_mutex); 487 sema_init(&dev->cmd.poll_sem, 1); 488 dev->cmd.flags = 0; 489 490 dev->hcr = ioremap(pci_resource_start(dev->pdev, 0) + MTHCA_HCR_BASE, 491 MTHCA_HCR_SIZE); 492 if (!dev->hcr) { 493 mthca_err(dev, "Couldn't map command register."); 494 return -ENOMEM; 495 } 496 497 dev->cmd.pool = pci_pool_create("mthca_cmd", dev->pdev, 498 MTHCA_MAILBOX_SIZE, 499 MTHCA_MAILBOX_SIZE, 0); 500 if (!dev->cmd.pool) { 501 iounmap(dev->hcr); 502 return -ENOMEM; 503 } 504 505 return 0; 506 } 507 508 void mthca_cmd_cleanup(struct mthca_dev *dev) 509 { 510 pci_pool_destroy(dev->cmd.pool); 511 iounmap(dev->hcr); 512 if (dev->cmd.flags & MTHCA_CMD_POST_DOORBELLS) 513 iounmap(dev->cmd.dbell_map); 514 } 515 516 /* 517 * Switch to using events to issue FW commands (should be called after 518 * event queue to command events has been initialized). 519 */ 520 int mthca_cmd_use_events(struct mthca_dev *dev) 521 { 522 int i; 523 524 dev->cmd.context = kmalloc(dev->cmd.max_cmds * 525 sizeof (struct mthca_cmd_context), 526 GFP_KERNEL); 527 if (!dev->cmd.context) 528 return -ENOMEM; 529 530 for (i = 0; i < dev->cmd.max_cmds; ++i) { 531 dev->cmd.context[i].token = i; 532 dev->cmd.context[i].next = i + 1; 533 } 534 535 dev->cmd.context[dev->cmd.max_cmds - 1].next = -1; 536 dev->cmd.free_head = 0; 537 538 sema_init(&dev->cmd.event_sem, dev->cmd.max_cmds); 539 spin_lock_init(&dev->cmd.context_lock); 540 541 for (dev->cmd.token_mask = 1; 542 dev->cmd.token_mask < dev->cmd.max_cmds; 543 dev->cmd.token_mask <<= 1) 544 ; /* nothing */ 545 --dev->cmd.token_mask; 546 547 dev->cmd.flags |= MTHCA_CMD_USE_EVENTS; 548 549 down(&dev->cmd.poll_sem); 550 551 return 0; 552 } 553 554 /* 555 * Switch back to polling (used when shutting down the device) 556 */ 557 void mthca_cmd_use_polling(struct mthca_dev *dev) 558 { 559 int i; 560 561 dev->cmd.flags &= ~MTHCA_CMD_USE_EVENTS; 562 563 for (i = 0; i < dev->cmd.max_cmds; ++i) 564 down(&dev->cmd.event_sem); 565 566 kfree(dev->cmd.context); 567 568 up(&dev->cmd.poll_sem); 569 } 570 571 struct mthca_mailbox *mthca_alloc_mailbox(struct mthca_dev *dev, 572 gfp_t gfp_mask) 573 { 574 struct mthca_mailbox *mailbox; 575 576 mailbox = kmalloc(sizeof *mailbox, gfp_mask); 577 if (!mailbox) 578 return ERR_PTR(-ENOMEM); 579 580 mailbox->buf = pci_pool_alloc(dev->cmd.pool, gfp_mask, &mailbox->dma); 581 if (!mailbox->buf) { 582 kfree(mailbox); 583 return ERR_PTR(-ENOMEM); 584 } 585 586 return mailbox; 587 } 588 589 void mthca_free_mailbox(struct mthca_dev *dev, struct mthca_mailbox *mailbox) 590 { 591 if (!mailbox) 592 return; 593 594 pci_pool_free(dev->cmd.pool, mailbox->buf, mailbox->dma); 595 kfree(mailbox); 596 } 597 598 int mthca_SYS_EN(struct mthca_dev *dev, u8 *status) 599 { 600 u64 out; 601 int ret; 602 603 ret = mthca_cmd_imm(dev, 0, &out, 0, 0, CMD_SYS_EN, HZ, status); 604 605 if (*status == MTHCA_CMD_STAT_DDR_MEM_ERR) 606 mthca_warn(dev, "SYS_EN DDR error: syn=%x, sock=%d, " 607 "sladdr=%d, SPD source=%s\n", 608 (int) (out >> 6) & 0xf, (int) (out >> 4) & 3, 609 (int) (out >> 1) & 7, (int) out & 1 ? "NVMEM" : "DIMM"); 610 611 return ret; 612 } 613 614 int mthca_SYS_DIS(struct mthca_dev *dev, u8 *status) 615 { 616 return mthca_cmd(dev, 0, 0, 0, CMD_SYS_DIS, HZ, status); 617 } 618 619 static int mthca_map_cmd(struct mthca_dev *dev, u16 op, struct mthca_icm *icm, 620 u64 virt, u8 *status) 621 { 622 struct mthca_mailbox *mailbox; 623 struct mthca_icm_iter iter; 624 __be64 *pages; 625 int lg; 626 int nent = 0; 627 int i; 628 int err = 0; 629 int ts = 0, tc = 0; 630 631 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 632 if (IS_ERR(mailbox)) 633 return PTR_ERR(mailbox); 634 memset(mailbox->buf, 0, MTHCA_MAILBOX_SIZE); 635 pages = mailbox->buf; 636 637 for (mthca_icm_first(icm, &iter); 638 !mthca_icm_last(&iter); 639 mthca_icm_next(&iter)) { 640 /* 641 * We have to pass pages that are aligned to their 642 * size, so find the least significant 1 in the 643 * address or size and use that as our log2 size. 644 */ 645 lg = ffs(mthca_icm_addr(&iter) | mthca_icm_size(&iter)) - 1; 646 if (lg < MTHCA_ICM_PAGE_SHIFT) { 647 mthca_warn(dev, "Got FW area not aligned to %d (%llx/%lx).\n", 648 MTHCA_ICM_PAGE_SIZE, 649 (unsigned long long) mthca_icm_addr(&iter), 650 mthca_icm_size(&iter)); 651 err = -EINVAL; 652 goto out; 653 } 654 for (i = 0; i < mthca_icm_size(&iter) >> lg; ++i) { 655 if (virt != -1) { 656 pages[nent * 2] = cpu_to_be64(virt); 657 virt += 1 << lg; 658 } 659 660 pages[nent * 2 + 1] = 661 cpu_to_be64((mthca_icm_addr(&iter) + (i << lg)) | 662 (lg - MTHCA_ICM_PAGE_SHIFT)); 663 ts += 1 << (lg - 10); 664 ++tc; 665 666 if (++nent == MTHCA_MAILBOX_SIZE / 16) { 667 err = mthca_cmd(dev, mailbox->dma, nent, 0, op, 668 CMD_TIME_CLASS_B, status); 669 if (err || *status) 670 goto out; 671 nent = 0; 672 } 673 } 674 } 675 676 if (nent) 677 err = mthca_cmd(dev, mailbox->dma, nent, 0, op, 678 CMD_TIME_CLASS_B, status); 679 680 switch (op) { 681 case CMD_MAP_FA: 682 mthca_dbg(dev, "Mapped %d chunks/%d KB for FW.\n", tc, ts); 683 break; 684 case CMD_MAP_ICM_AUX: 685 mthca_dbg(dev, "Mapped %d chunks/%d KB for ICM aux.\n", tc, ts); 686 break; 687 case CMD_MAP_ICM: 688 mthca_dbg(dev, "Mapped %d chunks/%d KB at %llx for ICM.\n", 689 tc, ts, (unsigned long long) virt - (ts << 10)); 690 break; 691 } 692 693 out: 694 mthca_free_mailbox(dev, mailbox); 695 return err; 696 } 697 698 int mthca_MAP_FA(struct mthca_dev *dev, struct mthca_icm *icm, u8 *status) 699 { 700 return mthca_map_cmd(dev, CMD_MAP_FA, icm, -1, status); 701 } 702 703 int mthca_UNMAP_FA(struct mthca_dev *dev, u8 *status) 704 { 705 return mthca_cmd(dev, 0, 0, 0, CMD_UNMAP_FA, CMD_TIME_CLASS_B, status); 706 } 707 708 int mthca_RUN_FW(struct mthca_dev *dev, u8 *status) 709 { 710 return mthca_cmd(dev, 0, 0, 0, CMD_RUN_FW, CMD_TIME_CLASS_A, status); 711 } 712 713 static void mthca_setup_cmd_doorbells(struct mthca_dev *dev, u64 base) 714 { 715 unsigned long addr; 716 u16 max_off = 0; 717 int i; 718 719 for (i = 0; i < 8; ++i) 720 max_off = max(max_off, dev->cmd.dbell_offsets[i]); 721 722 if ((base & PAGE_MASK) != ((base + max_off) & PAGE_MASK)) { 723 mthca_warn(dev, "Firmware doorbell region at 0x%016llx, " 724 "length 0x%x crosses a page boundary\n", 725 (unsigned long long) base, max_off); 726 return; 727 } 728 729 addr = pci_resource_start(dev->pdev, 2) + 730 ((pci_resource_len(dev->pdev, 2) - 1) & base); 731 dev->cmd.dbell_map = ioremap(addr, max_off + sizeof(u32)); 732 if (!dev->cmd.dbell_map) 733 return; 734 735 dev->cmd.flags |= MTHCA_CMD_POST_DOORBELLS; 736 mthca_dbg(dev, "Mapped doorbell page for posting FW commands\n"); 737 } 738 739 int mthca_QUERY_FW(struct mthca_dev *dev, u8 *status) 740 { 741 struct mthca_mailbox *mailbox; 742 u32 *outbox; 743 u64 base; 744 u32 tmp; 745 int err = 0; 746 u8 lg; 747 int i; 748 749 #define QUERY_FW_OUT_SIZE 0x100 750 #define QUERY_FW_VER_OFFSET 0x00 751 #define QUERY_FW_MAX_CMD_OFFSET 0x0f 752 #define QUERY_FW_ERR_START_OFFSET 0x30 753 #define QUERY_FW_ERR_SIZE_OFFSET 0x38 754 755 #define QUERY_FW_CMD_DB_EN_OFFSET 0x10 756 #define QUERY_FW_CMD_DB_OFFSET 0x50 757 #define QUERY_FW_CMD_DB_BASE 0x60 758 759 #define QUERY_FW_START_OFFSET 0x20 760 #define QUERY_FW_END_OFFSET 0x28 761 762 #define QUERY_FW_SIZE_OFFSET 0x00 763 #define QUERY_FW_CLR_INT_BASE_OFFSET 0x20 764 #define QUERY_FW_EQ_ARM_BASE_OFFSET 0x40 765 #define QUERY_FW_EQ_SET_CI_BASE_OFFSET 0x48 766 767 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 768 if (IS_ERR(mailbox)) 769 return PTR_ERR(mailbox); 770 outbox = mailbox->buf; 771 772 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_FW, 773 CMD_TIME_CLASS_A, status); 774 775 if (err) 776 goto out; 777 778 MTHCA_GET(dev->fw_ver, outbox, QUERY_FW_VER_OFFSET); 779 /* 780 * FW subminor version is at more significant bits than minor 781 * version, so swap here. 782 */ 783 dev->fw_ver = (dev->fw_ver & 0xffff00000000ull) | 784 ((dev->fw_ver & 0xffff0000ull) >> 16) | 785 ((dev->fw_ver & 0x0000ffffull) << 16); 786 787 MTHCA_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET); 788 dev->cmd.max_cmds = 1 << lg; 789 790 mthca_dbg(dev, "FW version %012llx, max commands %d\n", 791 (unsigned long long) dev->fw_ver, dev->cmd.max_cmds); 792 793 MTHCA_GET(dev->catas_err.addr, outbox, QUERY_FW_ERR_START_OFFSET); 794 MTHCA_GET(dev->catas_err.size, outbox, QUERY_FW_ERR_SIZE_OFFSET); 795 796 mthca_dbg(dev, "Catastrophic error buffer at 0x%llx, size 0x%x\n", 797 (unsigned long long) dev->catas_err.addr, dev->catas_err.size); 798 799 MTHCA_GET(tmp, outbox, QUERY_FW_CMD_DB_EN_OFFSET); 800 if (tmp & 0x1) { 801 mthca_dbg(dev, "FW supports commands through doorbells\n"); 802 803 MTHCA_GET(base, outbox, QUERY_FW_CMD_DB_BASE); 804 for (i = 0; i < MTHCA_CMD_NUM_DBELL_DWORDS; ++i) 805 MTHCA_GET(dev->cmd.dbell_offsets[i], outbox, 806 QUERY_FW_CMD_DB_OFFSET + (i << 1)); 807 808 mthca_setup_cmd_doorbells(dev, base); 809 } 810 811 if (mthca_is_memfree(dev)) { 812 MTHCA_GET(dev->fw.arbel.fw_pages, outbox, QUERY_FW_SIZE_OFFSET); 813 MTHCA_GET(dev->fw.arbel.clr_int_base, outbox, QUERY_FW_CLR_INT_BASE_OFFSET); 814 MTHCA_GET(dev->fw.arbel.eq_arm_base, outbox, QUERY_FW_EQ_ARM_BASE_OFFSET); 815 MTHCA_GET(dev->fw.arbel.eq_set_ci_base, outbox, QUERY_FW_EQ_SET_CI_BASE_OFFSET); 816 mthca_dbg(dev, "FW size %d KB\n", dev->fw.arbel.fw_pages << 2); 817 818 /* 819 * Round up number of system pages needed in case 820 * MTHCA_ICM_PAGE_SIZE < PAGE_SIZE. 821 */ 822 dev->fw.arbel.fw_pages = 823 ALIGN(dev->fw.arbel.fw_pages, PAGE_SIZE / MTHCA_ICM_PAGE_SIZE) >> 824 (PAGE_SHIFT - MTHCA_ICM_PAGE_SHIFT); 825 826 mthca_dbg(dev, "Clear int @ %llx, EQ arm @ %llx, EQ set CI @ %llx\n", 827 (unsigned long long) dev->fw.arbel.clr_int_base, 828 (unsigned long long) dev->fw.arbel.eq_arm_base, 829 (unsigned long long) dev->fw.arbel.eq_set_ci_base); 830 } else { 831 MTHCA_GET(dev->fw.tavor.fw_start, outbox, QUERY_FW_START_OFFSET); 832 MTHCA_GET(dev->fw.tavor.fw_end, outbox, QUERY_FW_END_OFFSET); 833 834 mthca_dbg(dev, "FW size %d KB (start %llx, end %llx)\n", 835 (int) ((dev->fw.tavor.fw_end - dev->fw.tavor.fw_start) >> 10), 836 (unsigned long long) dev->fw.tavor.fw_start, 837 (unsigned long long) dev->fw.tavor.fw_end); 838 } 839 840 out: 841 mthca_free_mailbox(dev, mailbox); 842 return err; 843 } 844 845 int mthca_ENABLE_LAM(struct mthca_dev *dev, u8 *status) 846 { 847 struct mthca_mailbox *mailbox; 848 u8 info; 849 u32 *outbox; 850 int err = 0; 851 852 #define ENABLE_LAM_OUT_SIZE 0x100 853 #define ENABLE_LAM_START_OFFSET 0x00 854 #define ENABLE_LAM_END_OFFSET 0x08 855 #define ENABLE_LAM_INFO_OFFSET 0x13 856 857 #define ENABLE_LAM_INFO_HIDDEN_FLAG (1 << 4) 858 #define ENABLE_LAM_INFO_ECC_MASK 0x3 859 860 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 861 if (IS_ERR(mailbox)) 862 return PTR_ERR(mailbox); 863 outbox = mailbox->buf; 864 865 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_ENABLE_LAM, 866 CMD_TIME_CLASS_C, status); 867 868 if (err) 869 goto out; 870 871 if (*status == MTHCA_CMD_STAT_LAM_NOT_PRE) 872 goto out; 873 874 MTHCA_GET(dev->ddr_start, outbox, ENABLE_LAM_START_OFFSET); 875 MTHCA_GET(dev->ddr_end, outbox, ENABLE_LAM_END_OFFSET); 876 MTHCA_GET(info, outbox, ENABLE_LAM_INFO_OFFSET); 877 878 if (!!(info & ENABLE_LAM_INFO_HIDDEN_FLAG) != 879 !!(dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN)) { 880 mthca_info(dev, "FW reports that HCA-attached memory " 881 "is %s hidden; does not match PCI config\n", 882 (info & ENABLE_LAM_INFO_HIDDEN_FLAG) ? 883 "" : "not"); 884 } 885 if (info & ENABLE_LAM_INFO_HIDDEN_FLAG) 886 mthca_dbg(dev, "HCA-attached memory is hidden.\n"); 887 888 mthca_dbg(dev, "HCA memory size %d KB (start %llx, end %llx)\n", 889 (int) ((dev->ddr_end - dev->ddr_start) >> 10), 890 (unsigned long long) dev->ddr_start, 891 (unsigned long long) dev->ddr_end); 892 893 out: 894 mthca_free_mailbox(dev, mailbox); 895 return err; 896 } 897 898 int mthca_DISABLE_LAM(struct mthca_dev *dev, u8 *status) 899 { 900 return mthca_cmd(dev, 0, 0, 0, CMD_SYS_DIS, CMD_TIME_CLASS_C, status); 901 } 902 903 int mthca_QUERY_DDR(struct mthca_dev *dev, u8 *status) 904 { 905 struct mthca_mailbox *mailbox; 906 u8 info; 907 u32 *outbox; 908 int err = 0; 909 910 #define QUERY_DDR_OUT_SIZE 0x100 911 #define QUERY_DDR_START_OFFSET 0x00 912 #define QUERY_DDR_END_OFFSET 0x08 913 #define QUERY_DDR_INFO_OFFSET 0x13 914 915 #define QUERY_DDR_INFO_HIDDEN_FLAG (1 << 4) 916 #define QUERY_DDR_INFO_ECC_MASK 0x3 917 918 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 919 if (IS_ERR(mailbox)) 920 return PTR_ERR(mailbox); 921 outbox = mailbox->buf; 922 923 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_DDR, 924 CMD_TIME_CLASS_A, status); 925 926 if (err) 927 goto out; 928 929 MTHCA_GET(dev->ddr_start, outbox, QUERY_DDR_START_OFFSET); 930 MTHCA_GET(dev->ddr_end, outbox, QUERY_DDR_END_OFFSET); 931 MTHCA_GET(info, outbox, QUERY_DDR_INFO_OFFSET); 932 933 if (!!(info & QUERY_DDR_INFO_HIDDEN_FLAG) != 934 !!(dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN)) { 935 mthca_info(dev, "FW reports that HCA-attached memory " 936 "is %s hidden; does not match PCI config\n", 937 (info & QUERY_DDR_INFO_HIDDEN_FLAG) ? 938 "" : "not"); 939 } 940 if (info & QUERY_DDR_INFO_HIDDEN_FLAG) 941 mthca_dbg(dev, "HCA-attached memory is hidden.\n"); 942 943 mthca_dbg(dev, "HCA memory size %d KB (start %llx, end %llx)\n", 944 (int) ((dev->ddr_end - dev->ddr_start) >> 10), 945 (unsigned long long) dev->ddr_start, 946 (unsigned long long) dev->ddr_end); 947 948 out: 949 mthca_free_mailbox(dev, mailbox); 950 return err; 951 } 952 953 int mthca_QUERY_DEV_LIM(struct mthca_dev *dev, 954 struct mthca_dev_lim *dev_lim, u8 *status) 955 { 956 struct mthca_mailbox *mailbox; 957 u32 *outbox; 958 u8 field; 959 u16 size; 960 u16 stat_rate; 961 int err; 962 963 #define QUERY_DEV_LIM_OUT_SIZE 0x100 964 #define QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET 0x10 965 #define QUERY_DEV_LIM_MAX_QP_SZ_OFFSET 0x11 966 #define QUERY_DEV_LIM_RSVD_QP_OFFSET 0x12 967 #define QUERY_DEV_LIM_MAX_QP_OFFSET 0x13 968 #define QUERY_DEV_LIM_RSVD_SRQ_OFFSET 0x14 969 #define QUERY_DEV_LIM_MAX_SRQ_OFFSET 0x15 970 #define QUERY_DEV_LIM_RSVD_EEC_OFFSET 0x16 971 #define QUERY_DEV_LIM_MAX_EEC_OFFSET 0x17 972 #define QUERY_DEV_LIM_MAX_CQ_SZ_OFFSET 0x19 973 #define QUERY_DEV_LIM_RSVD_CQ_OFFSET 0x1a 974 #define QUERY_DEV_LIM_MAX_CQ_OFFSET 0x1b 975 #define QUERY_DEV_LIM_MAX_MPT_OFFSET 0x1d 976 #define QUERY_DEV_LIM_RSVD_EQ_OFFSET 0x1e 977 #define QUERY_DEV_LIM_MAX_EQ_OFFSET 0x1f 978 #define QUERY_DEV_LIM_RSVD_MTT_OFFSET 0x20 979 #define QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET 0x21 980 #define QUERY_DEV_LIM_RSVD_MRW_OFFSET 0x22 981 #define QUERY_DEV_LIM_MAX_MTT_SEG_OFFSET 0x23 982 #define QUERY_DEV_LIM_MAX_AV_OFFSET 0x27 983 #define QUERY_DEV_LIM_MAX_REQ_QP_OFFSET 0x29 984 #define QUERY_DEV_LIM_MAX_RES_QP_OFFSET 0x2b 985 #define QUERY_DEV_LIM_MAX_RDMA_OFFSET 0x2f 986 #define QUERY_DEV_LIM_RSZ_SRQ_OFFSET 0x33 987 #define QUERY_DEV_LIM_ACK_DELAY_OFFSET 0x35 988 #define QUERY_DEV_LIM_MTU_WIDTH_OFFSET 0x36 989 #define QUERY_DEV_LIM_VL_PORT_OFFSET 0x37 990 #define QUERY_DEV_LIM_MAX_GID_OFFSET 0x3b 991 #define QUERY_DEV_LIM_RATE_SUPPORT_OFFSET 0x3c 992 #define QUERY_DEV_LIM_MAX_PKEY_OFFSET 0x3f 993 #define QUERY_DEV_LIM_FLAGS_OFFSET 0x44 994 #define QUERY_DEV_LIM_RSVD_UAR_OFFSET 0x48 995 #define QUERY_DEV_LIM_UAR_SZ_OFFSET 0x49 996 #define QUERY_DEV_LIM_PAGE_SZ_OFFSET 0x4b 997 #define QUERY_DEV_LIM_MAX_SG_OFFSET 0x51 998 #define QUERY_DEV_LIM_MAX_DESC_SZ_OFFSET 0x52 999 #define QUERY_DEV_LIM_MAX_SG_RQ_OFFSET 0x55 1000 #define QUERY_DEV_LIM_MAX_DESC_SZ_RQ_OFFSET 0x56 1001 #define QUERY_DEV_LIM_MAX_QP_MCG_OFFSET 0x61 1002 #define QUERY_DEV_LIM_RSVD_MCG_OFFSET 0x62 1003 #define QUERY_DEV_LIM_MAX_MCG_OFFSET 0x63 1004 #define QUERY_DEV_LIM_RSVD_PD_OFFSET 0x64 1005 #define QUERY_DEV_LIM_MAX_PD_OFFSET 0x65 1006 #define QUERY_DEV_LIM_RSVD_RDD_OFFSET 0x66 1007 #define QUERY_DEV_LIM_MAX_RDD_OFFSET 0x67 1008 #define QUERY_DEV_LIM_EEC_ENTRY_SZ_OFFSET 0x80 1009 #define QUERY_DEV_LIM_QPC_ENTRY_SZ_OFFSET 0x82 1010 #define QUERY_DEV_LIM_EEEC_ENTRY_SZ_OFFSET 0x84 1011 #define QUERY_DEV_LIM_EQPC_ENTRY_SZ_OFFSET 0x86 1012 #define QUERY_DEV_LIM_EQC_ENTRY_SZ_OFFSET 0x88 1013 #define QUERY_DEV_LIM_CQC_ENTRY_SZ_OFFSET 0x8a 1014 #define QUERY_DEV_LIM_SRQ_ENTRY_SZ_OFFSET 0x8c 1015 #define QUERY_DEV_LIM_UAR_ENTRY_SZ_OFFSET 0x8e 1016 #define QUERY_DEV_LIM_MTT_ENTRY_SZ_OFFSET 0x90 1017 #define QUERY_DEV_LIM_MPT_ENTRY_SZ_OFFSET 0x92 1018 #define QUERY_DEV_LIM_PBL_SZ_OFFSET 0x96 1019 #define QUERY_DEV_LIM_BMME_FLAGS_OFFSET 0x97 1020 #define QUERY_DEV_LIM_RSVD_LKEY_OFFSET 0x98 1021 #define QUERY_DEV_LIM_LAMR_OFFSET 0x9f 1022 #define QUERY_DEV_LIM_MAX_ICM_SZ_OFFSET 0xa0 1023 1024 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1025 if (IS_ERR(mailbox)) 1026 return PTR_ERR(mailbox); 1027 outbox = mailbox->buf; 1028 1029 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_DEV_LIM, 1030 CMD_TIME_CLASS_A, status); 1031 1032 if (err) 1033 goto out; 1034 1035 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_QP_OFFSET); 1036 dev_lim->reserved_qps = 1 << (field & 0xf); 1037 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_OFFSET); 1038 dev_lim->max_qps = 1 << (field & 0x1f); 1039 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_SRQ_OFFSET); 1040 dev_lim->reserved_srqs = 1 << (field >> 4); 1041 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_OFFSET); 1042 dev_lim->max_srqs = 1 << (field & 0x1f); 1043 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_EEC_OFFSET); 1044 dev_lim->reserved_eecs = 1 << (field & 0xf); 1045 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_EEC_OFFSET); 1046 dev_lim->max_eecs = 1 << (field & 0x1f); 1047 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_CQ_SZ_OFFSET); 1048 dev_lim->max_cq_sz = 1 << field; 1049 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_CQ_OFFSET); 1050 dev_lim->reserved_cqs = 1 << (field & 0xf); 1051 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_CQ_OFFSET); 1052 dev_lim->max_cqs = 1 << (field & 0x1f); 1053 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MPT_OFFSET); 1054 dev_lim->max_mpts = 1 << (field & 0x3f); 1055 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_EQ_OFFSET); 1056 dev_lim->reserved_eqs = 1 << (field & 0xf); 1057 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_EQ_OFFSET); 1058 dev_lim->max_eqs = 1 << (field & 0x7); 1059 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MTT_OFFSET); 1060 if (mthca_is_memfree(dev)) 1061 dev_lim->reserved_mtts = ALIGN((1 << (field >> 4)) * sizeof(u64), 1062 MTHCA_MTT_SEG_SIZE) / MTHCA_MTT_SEG_SIZE; 1063 else 1064 dev_lim->reserved_mtts = 1 << (field >> 4); 1065 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET); 1066 dev_lim->max_mrw_sz = 1 << field; 1067 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MRW_OFFSET); 1068 dev_lim->reserved_mrws = 1 << (field & 0xf); 1069 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MTT_SEG_OFFSET); 1070 dev_lim->max_mtt_seg = 1 << (field & 0x3f); 1071 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_REQ_QP_OFFSET); 1072 dev_lim->max_requester_per_qp = 1 << (field & 0x3f); 1073 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RES_QP_OFFSET); 1074 dev_lim->max_responder_per_qp = 1 << (field & 0x3f); 1075 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RDMA_OFFSET); 1076 dev_lim->max_rdma_global = 1 << (field & 0x3f); 1077 MTHCA_GET(field, outbox, QUERY_DEV_LIM_ACK_DELAY_OFFSET); 1078 dev_lim->local_ca_ack_delay = field & 0x1f; 1079 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MTU_WIDTH_OFFSET); 1080 dev_lim->max_mtu = field >> 4; 1081 dev_lim->max_port_width = field & 0xf; 1082 MTHCA_GET(field, outbox, QUERY_DEV_LIM_VL_PORT_OFFSET); 1083 dev_lim->max_vl = field >> 4; 1084 dev_lim->num_ports = field & 0xf; 1085 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_GID_OFFSET); 1086 dev_lim->max_gids = 1 << (field & 0xf); 1087 MTHCA_GET(stat_rate, outbox, QUERY_DEV_LIM_RATE_SUPPORT_OFFSET); 1088 dev_lim->stat_rate_support = stat_rate; 1089 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_PKEY_OFFSET); 1090 dev_lim->max_pkeys = 1 << (field & 0xf); 1091 MTHCA_GET(dev_lim->flags, outbox, QUERY_DEV_LIM_FLAGS_OFFSET); 1092 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_UAR_OFFSET); 1093 dev_lim->reserved_uars = field >> 4; 1094 MTHCA_GET(field, outbox, QUERY_DEV_LIM_UAR_SZ_OFFSET); 1095 dev_lim->uar_size = 1 << ((field & 0x3f) + 20); 1096 MTHCA_GET(field, outbox, QUERY_DEV_LIM_PAGE_SZ_OFFSET); 1097 dev_lim->min_page_sz = 1 << field; 1098 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SG_OFFSET); 1099 dev_lim->max_sg = field; 1100 1101 MTHCA_GET(size, outbox, QUERY_DEV_LIM_MAX_DESC_SZ_OFFSET); 1102 dev_lim->max_desc_sz = size; 1103 1104 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_MCG_OFFSET); 1105 dev_lim->max_qp_per_mcg = 1 << field; 1106 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MCG_OFFSET); 1107 dev_lim->reserved_mgms = field & 0xf; 1108 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MCG_OFFSET); 1109 dev_lim->max_mcgs = 1 << field; 1110 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_PD_OFFSET); 1111 dev_lim->reserved_pds = field >> 4; 1112 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_PD_OFFSET); 1113 dev_lim->max_pds = 1 << (field & 0x3f); 1114 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_RDD_OFFSET); 1115 dev_lim->reserved_rdds = field >> 4; 1116 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RDD_OFFSET); 1117 dev_lim->max_rdds = 1 << (field & 0x3f); 1118 1119 MTHCA_GET(size, outbox, QUERY_DEV_LIM_EEC_ENTRY_SZ_OFFSET); 1120 dev_lim->eec_entry_sz = size; 1121 MTHCA_GET(size, outbox, QUERY_DEV_LIM_QPC_ENTRY_SZ_OFFSET); 1122 dev_lim->qpc_entry_sz = size; 1123 MTHCA_GET(size, outbox, QUERY_DEV_LIM_EEEC_ENTRY_SZ_OFFSET); 1124 dev_lim->eeec_entry_sz = size; 1125 MTHCA_GET(size, outbox, QUERY_DEV_LIM_EQPC_ENTRY_SZ_OFFSET); 1126 dev_lim->eqpc_entry_sz = size; 1127 MTHCA_GET(size, outbox, QUERY_DEV_LIM_EQC_ENTRY_SZ_OFFSET); 1128 dev_lim->eqc_entry_sz = size; 1129 MTHCA_GET(size, outbox, QUERY_DEV_LIM_CQC_ENTRY_SZ_OFFSET); 1130 dev_lim->cqc_entry_sz = size; 1131 MTHCA_GET(size, outbox, QUERY_DEV_LIM_SRQ_ENTRY_SZ_OFFSET); 1132 dev_lim->srq_entry_sz = size; 1133 MTHCA_GET(size, outbox, QUERY_DEV_LIM_UAR_ENTRY_SZ_OFFSET); 1134 dev_lim->uar_scratch_entry_sz = size; 1135 1136 if (mthca_is_memfree(dev)) { 1137 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET); 1138 dev_lim->max_srq_sz = 1 << field; 1139 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_SZ_OFFSET); 1140 dev_lim->max_qp_sz = 1 << field; 1141 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSZ_SRQ_OFFSET); 1142 dev_lim->hca.arbel.resize_srq = field & 1; 1143 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SG_RQ_OFFSET); 1144 dev_lim->max_sg = min_t(int, field, dev_lim->max_sg); 1145 MTHCA_GET(size, outbox, QUERY_DEV_LIM_MAX_DESC_SZ_RQ_OFFSET); 1146 dev_lim->max_desc_sz = min_t(int, size, dev_lim->max_desc_sz); 1147 MTHCA_GET(size, outbox, QUERY_DEV_LIM_MPT_ENTRY_SZ_OFFSET); 1148 dev_lim->mpt_entry_sz = size; 1149 MTHCA_GET(field, outbox, QUERY_DEV_LIM_PBL_SZ_OFFSET); 1150 dev_lim->hca.arbel.max_pbl_sz = 1 << (field & 0x3f); 1151 MTHCA_GET(dev_lim->hca.arbel.bmme_flags, outbox, 1152 QUERY_DEV_LIM_BMME_FLAGS_OFFSET); 1153 MTHCA_GET(dev_lim->hca.arbel.reserved_lkey, outbox, 1154 QUERY_DEV_LIM_RSVD_LKEY_OFFSET); 1155 MTHCA_GET(field, outbox, QUERY_DEV_LIM_LAMR_OFFSET); 1156 dev_lim->hca.arbel.lam_required = field & 1; 1157 MTHCA_GET(dev_lim->hca.arbel.max_icm_sz, outbox, 1158 QUERY_DEV_LIM_MAX_ICM_SZ_OFFSET); 1159 1160 if (dev_lim->hca.arbel.bmme_flags & 1) 1161 mthca_dbg(dev, "Base MM extensions: yes " 1162 "(flags %d, max PBL %d, rsvd L_Key %08x)\n", 1163 dev_lim->hca.arbel.bmme_flags, 1164 dev_lim->hca.arbel.max_pbl_sz, 1165 dev_lim->hca.arbel.reserved_lkey); 1166 else 1167 mthca_dbg(dev, "Base MM extensions: no\n"); 1168 1169 mthca_dbg(dev, "Max ICM size %lld MB\n", 1170 (unsigned long long) dev_lim->hca.arbel.max_icm_sz >> 20); 1171 } else { 1172 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET); 1173 dev_lim->max_srq_sz = (1 << field) - 1; 1174 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_SZ_OFFSET); 1175 dev_lim->max_qp_sz = (1 << field) - 1; 1176 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_AV_OFFSET); 1177 dev_lim->hca.tavor.max_avs = 1 << (field & 0x3f); 1178 dev_lim->mpt_entry_sz = MTHCA_MPT_ENTRY_SIZE; 1179 } 1180 1181 mthca_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n", 1182 dev_lim->max_qps, dev_lim->reserved_qps, dev_lim->qpc_entry_sz); 1183 mthca_dbg(dev, "Max SRQs: %d, reserved SRQs: %d, entry size: %d\n", 1184 dev_lim->max_srqs, dev_lim->reserved_srqs, dev_lim->srq_entry_sz); 1185 mthca_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n", 1186 dev_lim->max_cqs, dev_lim->reserved_cqs, dev_lim->cqc_entry_sz); 1187 mthca_dbg(dev, "Max EQs: %d, reserved EQs: %d, entry size: %d\n", 1188 dev_lim->max_eqs, dev_lim->reserved_eqs, dev_lim->eqc_entry_sz); 1189 mthca_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n", 1190 dev_lim->reserved_mrws, dev_lim->reserved_mtts); 1191 mthca_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n", 1192 dev_lim->max_pds, dev_lim->reserved_pds, dev_lim->reserved_uars); 1193 mthca_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n", 1194 dev_lim->max_pds, dev_lim->reserved_mgms); 1195 mthca_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n", 1196 dev_lim->max_cq_sz, dev_lim->max_qp_sz, dev_lim->max_srq_sz); 1197 1198 mthca_dbg(dev, "Flags: %08x\n", dev_lim->flags); 1199 1200 out: 1201 mthca_free_mailbox(dev, mailbox); 1202 return err; 1203 } 1204 1205 static void get_board_id(void *vsd, char *board_id) 1206 { 1207 int i; 1208 1209 #define VSD_OFFSET_SIG1 0x00 1210 #define VSD_OFFSET_SIG2 0xde 1211 #define VSD_OFFSET_MLX_BOARD_ID 0xd0 1212 #define VSD_OFFSET_TS_BOARD_ID 0x20 1213 1214 #define VSD_SIGNATURE_TOPSPIN 0x5ad 1215 1216 memset(board_id, 0, MTHCA_BOARD_ID_LEN); 1217 1218 if (be16_to_cpup(vsd + VSD_OFFSET_SIG1) == VSD_SIGNATURE_TOPSPIN && 1219 be16_to_cpup(vsd + VSD_OFFSET_SIG2) == VSD_SIGNATURE_TOPSPIN) { 1220 strlcpy(board_id, vsd + VSD_OFFSET_TS_BOARD_ID, MTHCA_BOARD_ID_LEN); 1221 } else { 1222 /* 1223 * The board ID is a string but the firmware byte 1224 * swaps each 4-byte word before passing it back to 1225 * us. Therefore we need to swab it before printing. 1226 */ 1227 for (i = 0; i < 4; ++i) 1228 ((u32 *) board_id)[i] = 1229 swab32(*(u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4)); 1230 } 1231 } 1232 1233 int mthca_QUERY_ADAPTER(struct mthca_dev *dev, 1234 struct mthca_adapter *adapter, u8 *status) 1235 { 1236 struct mthca_mailbox *mailbox; 1237 u32 *outbox; 1238 int err; 1239 1240 #define QUERY_ADAPTER_OUT_SIZE 0x100 1241 #define QUERY_ADAPTER_VENDOR_ID_OFFSET 0x00 1242 #define QUERY_ADAPTER_DEVICE_ID_OFFSET 0x04 1243 #define QUERY_ADAPTER_REVISION_ID_OFFSET 0x08 1244 #define QUERY_ADAPTER_INTA_PIN_OFFSET 0x10 1245 #define QUERY_ADAPTER_VSD_OFFSET 0x20 1246 1247 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1248 if (IS_ERR(mailbox)) 1249 return PTR_ERR(mailbox); 1250 outbox = mailbox->buf; 1251 1252 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_ADAPTER, 1253 CMD_TIME_CLASS_A, status); 1254 1255 if (err) 1256 goto out; 1257 1258 if (!mthca_is_memfree(dev)) { 1259 MTHCA_GET(adapter->vendor_id, outbox, 1260 QUERY_ADAPTER_VENDOR_ID_OFFSET); 1261 MTHCA_GET(adapter->device_id, outbox, 1262 QUERY_ADAPTER_DEVICE_ID_OFFSET); 1263 MTHCA_GET(adapter->revision_id, outbox, 1264 QUERY_ADAPTER_REVISION_ID_OFFSET); 1265 } 1266 MTHCA_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET); 1267 1268 get_board_id(outbox + QUERY_ADAPTER_VSD_OFFSET / 4, 1269 adapter->board_id); 1270 1271 out: 1272 mthca_free_mailbox(dev, mailbox); 1273 return err; 1274 } 1275 1276 int mthca_INIT_HCA(struct mthca_dev *dev, 1277 struct mthca_init_hca_param *param, 1278 u8 *status) 1279 { 1280 struct mthca_mailbox *mailbox; 1281 __be32 *inbox; 1282 int err; 1283 1284 #define INIT_HCA_IN_SIZE 0x200 1285 #define INIT_HCA_FLAGS1_OFFSET 0x00c 1286 #define INIT_HCA_FLAGS2_OFFSET 0x014 1287 #define INIT_HCA_QPC_OFFSET 0x020 1288 #define INIT_HCA_QPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x10) 1289 #define INIT_HCA_LOG_QP_OFFSET (INIT_HCA_QPC_OFFSET + 0x17) 1290 #define INIT_HCA_EEC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x20) 1291 #define INIT_HCA_LOG_EEC_OFFSET (INIT_HCA_QPC_OFFSET + 0x27) 1292 #define INIT_HCA_SRQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x28) 1293 #define INIT_HCA_LOG_SRQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x2f) 1294 #define INIT_HCA_CQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x30) 1295 #define INIT_HCA_LOG_CQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x37) 1296 #define INIT_HCA_EQPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x40) 1297 #define INIT_HCA_EEEC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x50) 1298 #define INIT_HCA_EQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x60) 1299 #define INIT_HCA_LOG_EQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x67) 1300 #define INIT_HCA_RDB_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x70) 1301 #define INIT_HCA_UDAV_OFFSET 0x0b0 1302 #define INIT_HCA_UDAV_LKEY_OFFSET (INIT_HCA_UDAV_OFFSET + 0x0) 1303 #define INIT_HCA_UDAV_PD_OFFSET (INIT_HCA_UDAV_OFFSET + 0x4) 1304 #define INIT_HCA_MCAST_OFFSET 0x0c0 1305 #define INIT_HCA_MC_BASE_OFFSET (INIT_HCA_MCAST_OFFSET + 0x00) 1306 #define INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x12) 1307 #define INIT_HCA_MC_HASH_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x16) 1308 #define INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b) 1309 #define INIT_HCA_TPT_OFFSET 0x0f0 1310 #define INIT_HCA_MPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x00) 1311 #define INIT_HCA_MTT_SEG_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x09) 1312 #define INIT_HCA_LOG_MPT_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x0b) 1313 #define INIT_HCA_MTT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x10) 1314 #define INIT_HCA_UAR_OFFSET 0x120 1315 #define INIT_HCA_UAR_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x00) 1316 #define INIT_HCA_UARC_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x09) 1317 #define INIT_HCA_LOG_UAR_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0a) 1318 #define INIT_HCA_UAR_PAGE_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0b) 1319 #define INIT_HCA_UAR_SCATCH_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x10) 1320 #define INIT_HCA_UAR_CTX_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x18) 1321 1322 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1323 if (IS_ERR(mailbox)) 1324 return PTR_ERR(mailbox); 1325 inbox = mailbox->buf; 1326 1327 memset(inbox, 0, INIT_HCA_IN_SIZE); 1328 1329 if (dev->mthca_flags & MTHCA_FLAG_SINAI_OPT) 1330 MTHCA_PUT(inbox, 0x1, INIT_HCA_FLAGS1_OFFSET); 1331 1332 #if defined(__LITTLE_ENDIAN) 1333 *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) &= ~cpu_to_be32(1 << 1); 1334 #elif defined(__BIG_ENDIAN) 1335 *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) |= cpu_to_be32(1 << 1); 1336 #else 1337 #error Host endianness not defined 1338 #endif 1339 /* Check port for UD address vector: */ 1340 *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) |= cpu_to_be32(1); 1341 1342 /* Enable IPoIB checksumming if we can: */ 1343 if (dev->device_cap_flags & IB_DEVICE_UD_IP_CSUM) 1344 *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) |= cpu_to_be32(7 << 3); 1345 1346 /* We leave wqe_quota, responder_exu, etc as 0 (default) */ 1347 1348 /* QPC/EEC/CQC/EQC/RDB attributes */ 1349 1350 MTHCA_PUT(inbox, param->qpc_base, INIT_HCA_QPC_BASE_OFFSET); 1351 MTHCA_PUT(inbox, param->log_num_qps, INIT_HCA_LOG_QP_OFFSET); 1352 MTHCA_PUT(inbox, param->eec_base, INIT_HCA_EEC_BASE_OFFSET); 1353 MTHCA_PUT(inbox, param->log_num_eecs, INIT_HCA_LOG_EEC_OFFSET); 1354 MTHCA_PUT(inbox, param->srqc_base, INIT_HCA_SRQC_BASE_OFFSET); 1355 MTHCA_PUT(inbox, param->log_num_srqs, INIT_HCA_LOG_SRQ_OFFSET); 1356 MTHCA_PUT(inbox, param->cqc_base, INIT_HCA_CQC_BASE_OFFSET); 1357 MTHCA_PUT(inbox, param->log_num_cqs, INIT_HCA_LOG_CQ_OFFSET); 1358 MTHCA_PUT(inbox, param->eqpc_base, INIT_HCA_EQPC_BASE_OFFSET); 1359 MTHCA_PUT(inbox, param->eeec_base, INIT_HCA_EEEC_BASE_OFFSET); 1360 MTHCA_PUT(inbox, param->eqc_base, INIT_HCA_EQC_BASE_OFFSET); 1361 MTHCA_PUT(inbox, param->log_num_eqs, INIT_HCA_LOG_EQ_OFFSET); 1362 MTHCA_PUT(inbox, param->rdb_base, INIT_HCA_RDB_BASE_OFFSET); 1363 1364 /* UD AV attributes */ 1365 1366 /* multicast attributes */ 1367 1368 MTHCA_PUT(inbox, param->mc_base, INIT_HCA_MC_BASE_OFFSET); 1369 MTHCA_PUT(inbox, param->log_mc_entry_sz, INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET); 1370 MTHCA_PUT(inbox, param->mc_hash_sz, INIT_HCA_MC_HASH_SZ_OFFSET); 1371 MTHCA_PUT(inbox, param->log_mc_table_sz, INIT_HCA_LOG_MC_TABLE_SZ_OFFSET); 1372 1373 /* TPT attributes */ 1374 1375 MTHCA_PUT(inbox, param->mpt_base, INIT_HCA_MPT_BASE_OFFSET); 1376 if (!mthca_is_memfree(dev)) 1377 MTHCA_PUT(inbox, param->mtt_seg_sz, INIT_HCA_MTT_SEG_SZ_OFFSET); 1378 MTHCA_PUT(inbox, param->log_mpt_sz, INIT_HCA_LOG_MPT_SZ_OFFSET); 1379 MTHCA_PUT(inbox, param->mtt_base, INIT_HCA_MTT_BASE_OFFSET); 1380 1381 /* UAR attributes */ 1382 { 1383 u8 uar_page_sz = PAGE_SHIFT - 12; 1384 MTHCA_PUT(inbox, uar_page_sz, INIT_HCA_UAR_PAGE_SZ_OFFSET); 1385 } 1386 1387 MTHCA_PUT(inbox, param->uar_scratch_base, INIT_HCA_UAR_SCATCH_BASE_OFFSET); 1388 1389 if (mthca_is_memfree(dev)) { 1390 MTHCA_PUT(inbox, param->log_uarc_sz, INIT_HCA_UARC_SZ_OFFSET); 1391 MTHCA_PUT(inbox, param->log_uar_sz, INIT_HCA_LOG_UAR_SZ_OFFSET); 1392 MTHCA_PUT(inbox, param->uarc_base, INIT_HCA_UAR_CTX_BASE_OFFSET); 1393 } 1394 1395 err = mthca_cmd(dev, mailbox->dma, 0, 0, CMD_INIT_HCA, HZ, status); 1396 1397 mthca_free_mailbox(dev, mailbox); 1398 return err; 1399 } 1400 1401 int mthca_INIT_IB(struct mthca_dev *dev, 1402 struct mthca_init_ib_param *param, 1403 int port, u8 *status) 1404 { 1405 struct mthca_mailbox *mailbox; 1406 u32 *inbox; 1407 int err; 1408 u32 flags; 1409 1410 #define INIT_IB_IN_SIZE 56 1411 #define INIT_IB_FLAGS_OFFSET 0x00 1412 #define INIT_IB_FLAG_SIG (1 << 18) 1413 #define INIT_IB_FLAG_NG (1 << 17) 1414 #define INIT_IB_FLAG_G0 (1 << 16) 1415 #define INIT_IB_VL_SHIFT 4 1416 #define INIT_IB_PORT_WIDTH_SHIFT 8 1417 #define INIT_IB_MTU_SHIFT 12 1418 #define INIT_IB_MAX_GID_OFFSET 0x06 1419 #define INIT_IB_MAX_PKEY_OFFSET 0x0a 1420 #define INIT_IB_GUID0_OFFSET 0x10 1421 #define INIT_IB_NODE_GUID_OFFSET 0x18 1422 #define INIT_IB_SI_GUID_OFFSET 0x20 1423 1424 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1425 if (IS_ERR(mailbox)) 1426 return PTR_ERR(mailbox); 1427 inbox = mailbox->buf; 1428 1429 memset(inbox, 0, INIT_IB_IN_SIZE); 1430 1431 flags = 0; 1432 flags |= param->set_guid0 ? INIT_IB_FLAG_G0 : 0; 1433 flags |= param->set_node_guid ? INIT_IB_FLAG_NG : 0; 1434 flags |= param->set_si_guid ? INIT_IB_FLAG_SIG : 0; 1435 flags |= param->vl_cap << INIT_IB_VL_SHIFT; 1436 flags |= param->port_width << INIT_IB_PORT_WIDTH_SHIFT; 1437 flags |= param->mtu_cap << INIT_IB_MTU_SHIFT; 1438 MTHCA_PUT(inbox, flags, INIT_IB_FLAGS_OFFSET); 1439 1440 MTHCA_PUT(inbox, param->gid_cap, INIT_IB_MAX_GID_OFFSET); 1441 MTHCA_PUT(inbox, param->pkey_cap, INIT_IB_MAX_PKEY_OFFSET); 1442 MTHCA_PUT(inbox, param->guid0, INIT_IB_GUID0_OFFSET); 1443 MTHCA_PUT(inbox, param->node_guid, INIT_IB_NODE_GUID_OFFSET); 1444 MTHCA_PUT(inbox, param->si_guid, INIT_IB_SI_GUID_OFFSET); 1445 1446 err = mthca_cmd(dev, mailbox->dma, port, 0, CMD_INIT_IB, 1447 CMD_TIME_CLASS_A, status); 1448 1449 mthca_free_mailbox(dev, mailbox); 1450 return err; 1451 } 1452 1453 int mthca_CLOSE_IB(struct mthca_dev *dev, int port, u8 *status) 1454 { 1455 return mthca_cmd(dev, 0, port, 0, CMD_CLOSE_IB, HZ, status); 1456 } 1457 1458 int mthca_CLOSE_HCA(struct mthca_dev *dev, int panic, u8 *status) 1459 { 1460 return mthca_cmd(dev, 0, 0, panic, CMD_CLOSE_HCA, HZ, status); 1461 } 1462 1463 int mthca_SET_IB(struct mthca_dev *dev, struct mthca_set_ib_param *param, 1464 int port, u8 *status) 1465 { 1466 struct mthca_mailbox *mailbox; 1467 u32 *inbox; 1468 int err; 1469 u32 flags = 0; 1470 1471 #define SET_IB_IN_SIZE 0x40 1472 #define SET_IB_FLAGS_OFFSET 0x00 1473 #define SET_IB_FLAG_SIG (1 << 18) 1474 #define SET_IB_FLAG_RQK (1 << 0) 1475 #define SET_IB_CAP_MASK_OFFSET 0x04 1476 #define SET_IB_SI_GUID_OFFSET 0x08 1477 1478 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1479 if (IS_ERR(mailbox)) 1480 return PTR_ERR(mailbox); 1481 inbox = mailbox->buf; 1482 1483 memset(inbox, 0, SET_IB_IN_SIZE); 1484 1485 flags |= param->set_si_guid ? SET_IB_FLAG_SIG : 0; 1486 flags |= param->reset_qkey_viol ? SET_IB_FLAG_RQK : 0; 1487 MTHCA_PUT(inbox, flags, SET_IB_FLAGS_OFFSET); 1488 1489 MTHCA_PUT(inbox, param->cap_mask, SET_IB_CAP_MASK_OFFSET); 1490 MTHCA_PUT(inbox, param->si_guid, SET_IB_SI_GUID_OFFSET); 1491 1492 err = mthca_cmd(dev, mailbox->dma, port, 0, CMD_SET_IB, 1493 CMD_TIME_CLASS_B, status); 1494 1495 mthca_free_mailbox(dev, mailbox); 1496 return err; 1497 } 1498 1499 int mthca_MAP_ICM(struct mthca_dev *dev, struct mthca_icm *icm, u64 virt, u8 *status) 1500 { 1501 return mthca_map_cmd(dev, CMD_MAP_ICM, icm, virt, status); 1502 } 1503 1504 int mthca_MAP_ICM_page(struct mthca_dev *dev, u64 dma_addr, u64 virt, u8 *status) 1505 { 1506 struct mthca_mailbox *mailbox; 1507 __be64 *inbox; 1508 int err; 1509 1510 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1511 if (IS_ERR(mailbox)) 1512 return PTR_ERR(mailbox); 1513 inbox = mailbox->buf; 1514 1515 inbox[0] = cpu_to_be64(virt); 1516 inbox[1] = cpu_to_be64(dma_addr); 1517 1518 err = mthca_cmd(dev, mailbox->dma, 1, 0, CMD_MAP_ICM, 1519 CMD_TIME_CLASS_B, status); 1520 1521 mthca_free_mailbox(dev, mailbox); 1522 1523 if (!err) 1524 mthca_dbg(dev, "Mapped page at %llx to %llx for ICM.\n", 1525 (unsigned long long) dma_addr, (unsigned long long) virt); 1526 1527 return err; 1528 } 1529 1530 int mthca_UNMAP_ICM(struct mthca_dev *dev, u64 virt, u32 page_count, u8 *status) 1531 { 1532 mthca_dbg(dev, "Unmapping %d pages at %llx from ICM.\n", 1533 page_count, (unsigned long long) virt); 1534 1535 return mthca_cmd(dev, virt, page_count, 0, CMD_UNMAP_ICM, CMD_TIME_CLASS_B, status); 1536 } 1537 1538 int mthca_MAP_ICM_AUX(struct mthca_dev *dev, struct mthca_icm *icm, u8 *status) 1539 { 1540 return mthca_map_cmd(dev, CMD_MAP_ICM_AUX, icm, -1, status); 1541 } 1542 1543 int mthca_UNMAP_ICM_AUX(struct mthca_dev *dev, u8 *status) 1544 { 1545 return mthca_cmd(dev, 0, 0, 0, CMD_UNMAP_ICM_AUX, CMD_TIME_CLASS_B, status); 1546 } 1547 1548 int mthca_SET_ICM_SIZE(struct mthca_dev *dev, u64 icm_size, u64 *aux_pages, 1549 u8 *status) 1550 { 1551 int ret = mthca_cmd_imm(dev, icm_size, aux_pages, 0, 0, CMD_SET_ICM_SIZE, 1552 CMD_TIME_CLASS_A, status); 1553 1554 if (ret || status) 1555 return ret; 1556 1557 /* 1558 * Round up number of system pages needed in case 1559 * MTHCA_ICM_PAGE_SIZE < PAGE_SIZE. 1560 */ 1561 *aux_pages = ALIGN(*aux_pages, PAGE_SIZE / MTHCA_ICM_PAGE_SIZE) >> 1562 (PAGE_SHIFT - MTHCA_ICM_PAGE_SHIFT); 1563 1564 return 0; 1565 } 1566 1567 int mthca_SW2HW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1568 int mpt_index, u8 *status) 1569 { 1570 return mthca_cmd(dev, mailbox->dma, mpt_index, 0, CMD_SW2HW_MPT, 1571 CMD_TIME_CLASS_B, status); 1572 } 1573 1574 int mthca_HW2SW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1575 int mpt_index, u8 *status) 1576 { 1577 return mthca_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, mpt_index, 1578 !mailbox, CMD_HW2SW_MPT, 1579 CMD_TIME_CLASS_B, status); 1580 } 1581 1582 int mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1583 int num_mtt, u8 *status) 1584 { 1585 return mthca_cmd(dev, mailbox->dma, num_mtt, 0, CMD_WRITE_MTT, 1586 CMD_TIME_CLASS_B, status); 1587 } 1588 1589 int mthca_SYNC_TPT(struct mthca_dev *dev, u8 *status) 1590 { 1591 return mthca_cmd(dev, 0, 0, 0, CMD_SYNC_TPT, CMD_TIME_CLASS_B, status); 1592 } 1593 1594 int mthca_MAP_EQ(struct mthca_dev *dev, u64 event_mask, int unmap, 1595 int eq_num, u8 *status) 1596 { 1597 mthca_dbg(dev, "%s mask %016llx for eqn %d\n", 1598 unmap ? "Clearing" : "Setting", 1599 (unsigned long long) event_mask, eq_num); 1600 return mthca_cmd(dev, event_mask, (unmap << 31) | eq_num, 1601 0, CMD_MAP_EQ, CMD_TIME_CLASS_B, status); 1602 } 1603 1604 int mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1605 int eq_num, u8 *status) 1606 { 1607 return mthca_cmd(dev, mailbox->dma, eq_num, 0, CMD_SW2HW_EQ, 1608 CMD_TIME_CLASS_A, status); 1609 } 1610 1611 int mthca_HW2SW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1612 int eq_num, u8 *status) 1613 { 1614 return mthca_cmd_box(dev, 0, mailbox->dma, eq_num, 0, 1615 CMD_HW2SW_EQ, 1616 CMD_TIME_CLASS_A, status); 1617 } 1618 1619 int mthca_SW2HW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1620 int cq_num, u8 *status) 1621 { 1622 return mthca_cmd(dev, mailbox->dma, cq_num, 0, CMD_SW2HW_CQ, 1623 CMD_TIME_CLASS_A, status); 1624 } 1625 1626 int mthca_HW2SW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1627 int cq_num, u8 *status) 1628 { 1629 return mthca_cmd_box(dev, 0, mailbox->dma, cq_num, 0, 1630 CMD_HW2SW_CQ, 1631 CMD_TIME_CLASS_A, status); 1632 } 1633 1634 int mthca_RESIZE_CQ(struct mthca_dev *dev, int cq_num, u32 lkey, u8 log_size, 1635 u8 *status) 1636 { 1637 struct mthca_mailbox *mailbox; 1638 __be32 *inbox; 1639 int err; 1640 1641 #define RESIZE_CQ_IN_SIZE 0x40 1642 #define RESIZE_CQ_LOG_SIZE_OFFSET 0x0c 1643 #define RESIZE_CQ_LKEY_OFFSET 0x1c 1644 1645 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1646 if (IS_ERR(mailbox)) 1647 return PTR_ERR(mailbox); 1648 inbox = mailbox->buf; 1649 1650 memset(inbox, 0, RESIZE_CQ_IN_SIZE); 1651 /* 1652 * Leave start address fields zeroed out -- mthca assumes that 1653 * MRs for CQs always start at virtual address 0. 1654 */ 1655 MTHCA_PUT(inbox, log_size, RESIZE_CQ_LOG_SIZE_OFFSET); 1656 MTHCA_PUT(inbox, lkey, RESIZE_CQ_LKEY_OFFSET); 1657 1658 err = mthca_cmd(dev, mailbox->dma, cq_num, 1, CMD_RESIZE_CQ, 1659 CMD_TIME_CLASS_B, status); 1660 1661 mthca_free_mailbox(dev, mailbox); 1662 return err; 1663 } 1664 1665 int mthca_SW2HW_SRQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1666 int srq_num, u8 *status) 1667 { 1668 return mthca_cmd(dev, mailbox->dma, srq_num, 0, CMD_SW2HW_SRQ, 1669 CMD_TIME_CLASS_A, status); 1670 } 1671 1672 int mthca_HW2SW_SRQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1673 int srq_num, u8 *status) 1674 { 1675 return mthca_cmd_box(dev, 0, mailbox->dma, srq_num, 0, 1676 CMD_HW2SW_SRQ, 1677 CMD_TIME_CLASS_A, status); 1678 } 1679 1680 int mthca_QUERY_SRQ(struct mthca_dev *dev, u32 num, 1681 struct mthca_mailbox *mailbox, u8 *status) 1682 { 1683 return mthca_cmd_box(dev, 0, mailbox->dma, num, 0, 1684 CMD_QUERY_SRQ, CMD_TIME_CLASS_A, status); 1685 } 1686 1687 int mthca_ARM_SRQ(struct mthca_dev *dev, int srq_num, int limit, u8 *status) 1688 { 1689 return mthca_cmd(dev, limit, srq_num, 0, CMD_ARM_SRQ, 1690 CMD_TIME_CLASS_B, status); 1691 } 1692 1693 int mthca_MODIFY_QP(struct mthca_dev *dev, enum ib_qp_state cur, 1694 enum ib_qp_state next, u32 num, int is_ee, 1695 struct mthca_mailbox *mailbox, u32 optmask, 1696 u8 *status) 1697 { 1698 static const u16 op[IB_QPS_ERR + 1][IB_QPS_ERR + 1] = { 1699 [IB_QPS_RESET] = { 1700 [IB_QPS_RESET] = CMD_ERR2RST_QPEE, 1701 [IB_QPS_ERR] = CMD_2ERR_QPEE, 1702 [IB_QPS_INIT] = CMD_RST2INIT_QPEE, 1703 }, 1704 [IB_QPS_INIT] = { 1705 [IB_QPS_RESET] = CMD_ERR2RST_QPEE, 1706 [IB_QPS_ERR] = CMD_2ERR_QPEE, 1707 [IB_QPS_INIT] = CMD_INIT2INIT_QPEE, 1708 [IB_QPS_RTR] = CMD_INIT2RTR_QPEE, 1709 }, 1710 [IB_QPS_RTR] = { 1711 [IB_QPS_RESET] = CMD_ERR2RST_QPEE, 1712 [IB_QPS_ERR] = CMD_2ERR_QPEE, 1713 [IB_QPS_RTS] = CMD_RTR2RTS_QPEE, 1714 }, 1715 [IB_QPS_RTS] = { 1716 [IB_QPS_RESET] = CMD_ERR2RST_QPEE, 1717 [IB_QPS_ERR] = CMD_2ERR_QPEE, 1718 [IB_QPS_RTS] = CMD_RTS2RTS_QPEE, 1719 [IB_QPS_SQD] = CMD_RTS2SQD_QPEE, 1720 }, 1721 [IB_QPS_SQD] = { 1722 [IB_QPS_RESET] = CMD_ERR2RST_QPEE, 1723 [IB_QPS_ERR] = CMD_2ERR_QPEE, 1724 [IB_QPS_RTS] = CMD_SQD2RTS_QPEE, 1725 [IB_QPS_SQD] = CMD_SQD2SQD_QPEE, 1726 }, 1727 [IB_QPS_SQE] = { 1728 [IB_QPS_RESET] = CMD_ERR2RST_QPEE, 1729 [IB_QPS_ERR] = CMD_2ERR_QPEE, 1730 [IB_QPS_RTS] = CMD_SQERR2RTS_QPEE, 1731 }, 1732 [IB_QPS_ERR] = { 1733 [IB_QPS_RESET] = CMD_ERR2RST_QPEE, 1734 [IB_QPS_ERR] = CMD_2ERR_QPEE, 1735 } 1736 }; 1737 1738 u8 op_mod = 0; 1739 int my_mailbox = 0; 1740 int err; 1741 1742 if (op[cur][next] == CMD_ERR2RST_QPEE) { 1743 op_mod = 3; /* don't write outbox, any->reset */ 1744 1745 /* For debugging */ 1746 if (!mailbox) { 1747 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1748 if (!IS_ERR(mailbox)) { 1749 my_mailbox = 1; 1750 op_mod = 2; /* write outbox, any->reset */ 1751 } else 1752 mailbox = NULL; 1753 } 1754 1755 err = mthca_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, 1756 (!!is_ee << 24) | num, op_mod, 1757 op[cur][next], CMD_TIME_CLASS_C, status); 1758 1759 if (0 && mailbox) { 1760 int i; 1761 mthca_dbg(dev, "Dumping QP context:\n"); 1762 printk(" %08x\n", be32_to_cpup(mailbox->buf)); 1763 for (i = 0; i < 0x100 / 4; ++i) { 1764 if (i % 8 == 0) 1765 printk("[%02x] ", i * 4); 1766 printk(" %08x", 1767 be32_to_cpu(((__be32 *) mailbox->buf)[i + 2])); 1768 if ((i + 1) % 8 == 0) 1769 printk("\n"); 1770 } 1771 } 1772 1773 if (my_mailbox) 1774 mthca_free_mailbox(dev, mailbox); 1775 } else { 1776 if (0) { 1777 int i; 1778 mthca_dbg(dev, "Dumping QP context:\n"); 1779 printk(" opt param mask: %08x\n", be32_to_cpup(mailbox->buf)); 1780 for (i = 0; i < 0x100 / 4; ++i) { 1781 if (i % 8 == 0) 1782 printk(" [%02x] ", i * 4); 1783 printk(" %08x", 1784 be32_to_cpu(((__be32 *) mailbox->buf)[i + 2])); 1785 if ((i + 1) % 8 == 0) 1786 printk("\n"); 1787 } 1788 } 1789 1790 err = mthca_cmd(dev, mailbox->dma, optmask | (!!is_ee << 24) | num, 1791 op_mod, op[cur][next], CMD_TIME_CLASS_C, status); 1792 } 1793 1794 return err; 1795 } 1796 1797 int mthca_QUERY_QP(struct mthca_dev *dev, u32 num, int is_ee, 1798 struct mthca_mailbox *mailbox, u8 *status) 1799 { 1800 return mthca_cmd_box(dev, 0, mailbox->dma, (!!is_ee << 24) | num, 0, 1801 CMD_QUERY_QPEE, CMD_TIME_CLASS_A, status); 1802 } 1803 1804 int mthca_CONF_SPECIAL_QP(struct mthca_dev *dev, int type, u32 qpn, 1805 u8 *status) 1806 { 1807 u8 op_mod; 1808 1809 switch (type) { 1810 case IB_QPT_SMI: 1811 op_mod = 0; 1812 break; 1813 case IB_QPT_GSI: 1814 op_mod = 1; 1815 break; 1816 case IB_QPT_RAW_IPV6: 1817 op_mod = 2; 1818 break; 1819 case IB_QPT_RAW_ETY: 1820 op_mod = 3; 1821 break; 1822 default: 1823 return -EINVAL; 1824 } 1825 1826 return mthca_cmd(dev, 0, qpn, op_mod, CMD_CONF_SPECIAL_QP, 1827 CMD_TIME_CLASS_B, status); 1828 } 1829 1830 int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey, 1831 int port, struct ib_wc *in_wc, struct ib_grh *in_grh, 1832 void *in_mad, void *response_mad, u8 *status) 1833 { 1834 struct mthca_mailbox *inmailbox, *outmailbox; 1835 void *inbox; 1836 int err; 1837 u32 in_modifier = port; 1838 u8 op_modifier = 0; 1839 1840 #define MAD_IFC_BOX_SIZE 0x400 1841 #define MAD_IFC_MY_QPN_OFFSET 0x100 1842 #define MAD_IFC_RQPN_OFFSET 0x108 1843 #define MAD_IFC_SL_OFFSET 0x10c 1844 #define MAD_IFC_G_PATH_OFFSET 0x10d 1845 #define MAD_IFC_RLID_OFFSET 0x10e 1846 #define MAD_IFC_PKEY_OFFSET 0x112 1847 #define MAD_IFC_GRH_OFFSET 0x140 1848 1849 inmailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1850 if (IS_ERR(inmailbox)) 1851 return PTR_ERR(inmailbox); 1852 inbox = inmailbox->buf; 1853 1854 outmailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1855 if (IS_ERR(outmailbox)) { 1856 mthca_free_mailbox(dev, inmailbox); 1857 return PTR_ERR(outmailbox); 1858 } 1859 1860 memcpy(inbox, in_mad, 256); 1861 1862 /* 1863 * Key check traps can't be generated unless we have in_wc to 1864 * tell us where to send the trap. 1865 */ 1866 if (ignore_mkey || !in_wc) 1867 op_modifier |= 0x1; 1868 if (ignore_bkey || !in_wc) 1869 op_modifier |= 0x2; 1870 1871 if (in_wc) { 1872 u8 val; 1873 1874 memset(inbox + 256, 0, 256); 1875 1876 MTHCA_PUT(inbox, in_wc->qp->qp_num, MAD_IFC_MY_QPN_OFFSET); 1877 MTHCA_PUT(inbox, in_wc->src_qp, MAD_IFC_RQPN_OFFSET); 1878 1879 val = in_wc->sl << 4; 1880 MTHCA_PUT(inbox, val, MAD_IFC_SL_OFFSET); 1881 1882 val = in_wc->dlid_path_bits | 1883 (in_wc->wc_flags & IB_WC_GRH ? 0x80 : 0); 1884 MTHCA_PUT(inbox, val, MAD_IFC_G_PATH_OFFSET); 1885 1886 MTHCA_PUT(inbox, in_wc->slid, MAD_IFC_RLID_OFFSET); 1887 MTHCA_PUT(inbox, in_wc->pkey_index, MAD_IFC_PKEY_OFFSET); 1888 1889 if (in_grh) 1890 memcpy(inbox + MAD_IFC_GRH_OFFSET, in_grh, 40); 1891 1892 op_modifier |= 0x4; 1893 1894 in_modifier |= in_wc->slid << 16; 1895 } 1896 1897 err = mthca_cmd_box(dev, inmailbox->dma, outmailbox->dma, 1898 in_modifier, op_modifier, 1899 CMD_MAD_IFC, CMD_TIME_CLASS_C, status); 1900 1901 if (!err && !*status) 1902 memcpy(response_mad, outmailbox->buf, 256); 1903 1904 mthca_free_mailbox(dev, inmailbox); 1905 mthca_free_mailbox(dev, outmailbox); 1906 return err; 1907 } 1908 1909 int mthca_READ_MGM(struct mthca_dev *dev, int index, 1910 struct mthca_mailbox *mailbox, u8 *status) 1911 { 1912 return mthca_cmd_box(dev, 0, mailbox->dma, index, 0, 1913 CMD_READ_MGM, CMD_TIME_CLASS_A, status); 1914 } 1915 1916 int mthca_WRITE_MGM(struct mthca_dev *dev, int index, 1917 struct mthca_mailbox *mailbox, u8 *status) 1918 { 1919 return mthca_cmd(dev, mailbox->dma, index, 0, CMD_WRITE_MGM, 1920 CMD_TIME_CLASS_A, status); 1921 } 1922 1923 int mthca_MGID_HASH(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1924 u16 *hash, u8 *status) 1925 { 1926 u64 imm; 1927 int err; 1928 1929 err = mthca_cmd_imm(dev, mailbox->dma, &imm, 0, 0, CMD_MGID_HASH, 1930 CMD_TIME_CLASS_A, status); 1931 1932 *hash = imm; 1933 return err; 1934 } 1935 1936 int mthca_NOP(struct mthca_dev *dev, u8 *status) 1937 { 1938 return mthca_cmd(dev, 0, 0x1f, 0, CMD_NOP, msecs_to_jiffies(100), status); 1939 } 1940