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 35 #define LINUXKPI_PARAM_PREFIX mthca_ 36 37 #include <linux/completion.h> 38 #include <linux/pci.h> 39 #include <linux/errno.h> 40 #include <linux/sched.h> 41 #include <linux/module.h> 42 #include <linux/slab.h> 43 #include <linux/page.h> 44 #include <asm/io.h> 45 #include <rdma/ib_mad.h> 46 47 #include "mthca_dev.h" 48 #include "mthca_config_reg.h" 49 #include "mthca_cmd.h" 50 #include "mthca_memfree.h" 51 52 #define CMD_POLL_TOKEN 0xffff 53 54 enum { 55 HCR_IN_PARAM_OFFSET = 0x00, 56 HCR_IN_MODIFIER_OFFSET = 0x08, 57 HCR_OUT_PARAM_OFFSET = 0x0c, 58 HCR_TOKEN_OFFSET = 0x14, 59 HCR_STATUS_OFFSET = 0x18, 60 61 HCR_OPMOD_SHIFT = 12, 62 HCA_E_BIT = 22, 63 HCR_GO_BIT = 23 64 }; 65 66 enum { 67 /* initialization and general commands */ 68 CMD_SYS_EN = 0x1, 69 CMD_SYS_DIS = 0x2, 70 CMD_MAP_FA = 0xfff, 71 CMD_UNMAP_FA = 0xffe, 72 CMD_RUN_FW = 0xff6, 73 CMD_MOD_STAT_CFG = 0x34, 74 CMD_QUERY_DEV_LIM = 0x3, 75 CMD_QUERY_FW = 0x4, 76 CMD_ENABLE_LAM = 0xff8, 77 CMD_DISABLE_LAM = 0xff7, 78 CMD_QUERY_DDR = 0x5, 79 CMD_QUERY_ADAPTER = 0x6, 80 CMD_INIT_HCA = 0x7, 81 CMD_CLOSE_HCA = 0x8, 82 CMD_INIT_IB = 0x9, 83 CMD_CLOSE_IB = 0xa, 84 CMD_QUERY_HCA = 0xb, 85 CMD_SET_IB = 0xc, 86 CMD_ACCESS_DDR = 0x2e, 87 CMD_MAP_ICM = 0xffa, 88 CMD_UNMAP_ICM = 0xff9, 89 CMD_MAP_ICM_AUX = 0xffc, 90 CMD_UNMAP_ICM_AUX = 0xffb, 91 CMD_SET_ICM_SIZE = 0xffd, 92 93 /* TPT commands */ 94 CMD_SW2HW_MPT = 0xd, 95 CMD_QUERY_MPT = 0xe, 96 CMD_HW2SW_MPT = 0xf, 97 CMD_READ_MTT = 0x10, 98 CMD_WRITE_MTT = 0x11, 99 CMD_SYNC_TPT = 0x2f, 100 101 /* EQ commands */ 102 CMD_MAP_EQ = 0x12, 103 CMD_SW2HW_EQ = 0x13, 104 CMD_HW2SW_EQ = 0x14, 105 CMD_QUERY_EQ = 0x15, 106 107 /* CQ commands */ 108 CMD_SW2HW_CQ = 0x16, 109 CMD_HW2SW_CQ = 0x17, 110 CMD_QUERY_CQ = 0x18, 111 CMD_RESIZE_CQ = 0x2c, 112 113 /* SRQ commands */ 114 CMD_SW2HW_SRQ = 0x35, 115 CMD_HW2SW_SRQ = 0x36, 116 CMD_QUERY_SRQ = 0x37, 117 CMD_ARM_SRQ = 0x40, 118 119 /* QP/EE commands */ 120 CMD_RST2INIT_QPEE = 0x19, 121 CMD_INIT2RTR_QPEE = 0x1a, 122 CMD_RTR2RTS_QPEE = 0x1b, 123 CMD_RTS2RTS_QPEE = 0x1c, 124 CMD_SQERR2RTS_QPEE = 0x1d, 125 CMD_2ERR_QPEE = 0x1e, 126 CMD_RTS2SQD_QPEE = 0x1f, 127 CMD_SQD2SQD_QPEE = 0x38, 128 CMD_SQD2RTS_QPEE = 0x20, 129 CMD_ERR2RST_QPEE = 0x21, 130 CMD_QUERY_QPEE = 0x22, 131 CMD_INIT2INIT_QPEE = 0x2d, 132 CMD_SUSPEND_QPEE = 0x32, 133 CMD_UNSUSPEND_QPEE = 0x33, 134 /* special QPs and management commands */ 135 CMD_CONF_SPECIAL_QP = 0x23, 136 CMD_MAD_IFC = 0x24, 137 138 /* multicast commands */ 139 CMD_READ_MGM = 0x25, 140 CMD_WRITE_MGM = 0x26, 141 CMD_MGID_HASH = 0x27, 142 143 /* miscellaneous commands */ 144 CMD_DIAG_RPRT = 0x30, 145 CMD_NOP = 0x31, 146 147 /* debug commands */ 148 CMD_QUERY_DEBUG_MSG = 0x2a, 149 CMD_SET_DEBUG_MSG = 0x2b, 150 }; 151 152 /* 153 * According to Mellanox code, FW may be starved and never complete 154 * commands. So we can't use strict timeouts described in PRM -- we 155 * just arbitrarily select 60 seconds for now. 156 */ 157 #if 0 158 /* 159 * Round up and add 1 to make sure we get the full wait time (since we 160 * will be starting in the middle of a jiffy) 161 */ 162 enum { 163 CMD_TIME_CLASS_A = (HZ + 999) / 1000 + 1, 164 CMD_TIME_CLASS_B = (HZ + 99) / 100 + 1, 165 CMD_TIME_CLASS_C = (HZ + 9) / 10 + 1, 166 CMD_TIME_CLASS_D = 60 * HZ 167 }; 168 #else 169 #define CMD_TIME_CLASS_A (60 * HZ) 170 #define CMD_TIME_CLASS_B (60 * HZ) 171 #define CMD_TIME_CLASS_C (60 * HZ) 172 #define CMD_TIME_CLASS_D (60 * HZ) 173 #endif 174 175 #define GO_BIT_TIMEOUT (HZ * 10) 176 177 struct mthca_cmd_context { 178 struct completion done; 179 int result; 180 int next; 181 u64 out_param; 182 u16 token; 183 u8 status; 184 }; 185 186 static int fw_cmd_doorbell = 0; 187 module_param(fw_cmd_doorbell, int, 0644); 188 MODULE_PARM_DESC(fw_cmd_doorbell, "post FW commands through doorbell page if nonzero " 189 "(and supported by FW)"); 190 191 static inline int go_bit(struct mthca_dev *dev) 192 { 193 return readl(dev->hcr + HCR_STATUS_OFFSET) & 194 swab32(1 << HCR_GO_BIT); 195 } 196 197 static void mthca_cmd_post_dbell(struct mthca_dev *dev, 198 u64 in_param, 199 u64 out_param, 200 u32 in_modifier, 201 u8 op_modifier, 202 u16 op, 203 u16 token) 204 { 205 void __iomem *ptr = dev->cmd.dbell_map; 206 u16 *offs = dev->cmd.dbell_offsets; 207 208 __raw_writel((__force u32) cpu_to_be32(in_param >> 32), ptr + offs[0]); 209 wmb(); 210 __raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), ptr + offs[1]); 211 wmb(); 212 __raw_writel((__force u32) cpu_to_be32(in_modifier), ptr + offs[2]); 213 wmb(); 214 __raw_writel((__force u32) cpu_to_be32(out_param >> 32), ptr + offs[3]); 215 wmb(); 216 __raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), ptr + offs[4]); 217 wmb(); 218 __raw_writel((__force u32) cpu_to_be32(token << 16), ptr + offs[5]); 219 wmb(); 220 __raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) | 221 (1 << HCA_E_BIT) | 222 (op_modifier << HCR_OPMOD_SHIFT) | 223 op), ptr + offs[6]); 224 wmb(); 225 __raw_writel((__force u32) 0, ptr + offs[7]); 226 wmb(); 227 } 228 229 static int mthca_cmd_post_hcr(struct mthca_dev *dev, 230 u64 in_param, 231 u64 out_param, 232 u32 in_modifier, 233 u8 op_modifier, 234 u16 op, 235 u16 token, 236 int event) 237 { 238 if (event) { 239 unsigned long end = jiffies + GO_BIT_TIMEOUT; 240 241 while (go_bit(dev) && time_before(jiffies, end)) { 242 set_current_state(TASK_RUNNING); 243 schedule(); 244 } 245 } 246 247 if (go_bit(dev)) 248 return -EAGAIN; 249 250 /* 251 * We use writel (instead of something like memcpy_toio) 252 * because writes of less than 32 bits to the HCR don't work 253 * (and some architectures such as ia64 implement memcpy_toio 254 * in terms of writeb). 255 */ 256 __raw_writel((__force u32) cpu_to_be32(in_param >> 32), dev->hcr + 0 * 4); 257 __raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful), dev->hcr + 1 * 4); 258 __raw_writel((__force u32) cpu_to_be32(in_modifier), dev->hcr + 2 * 4); 259 __raw_writel((__force u32) cpu_to_be32(out_param >> 32), dev->hcr + 3 * 4); 260 __raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), dev->hcr + 4 * 4); 261 __raw_writel((__force u32) cpu_to_be32(token << 16), dev->hcr + 5 * 4); 262 263 /* __raw_writel may not order writes. */ 264 wmb(); 265 266 __raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT) | 267 (event ? (1 << HCA_E_BIT) : 0) | 268 (op_modifier << HCR_OPMOD_SHIFT) | 269 op), dev->hcr + 6 * 4); 270 271 return 0; 272 } 273 274 static int mthca_cmd_post(struct mthca_dev *dev, 275 u64 in_param, 276 u64 out_param, 277 u32 in_modifier, 278 u8 op_modifier, 279 u16 op, 280 u16 token, 281 int event) 282 { 283 int err = 0; 284 285 mutex_lock(&dev->cmd.hcr_mutex); 286 287 if (event && dev->cmd.flags & MTHCA_CMD_POST_DOORBELLS && fw_cmd_doorbell) 288 mthca_cmd_post_dbell(dev, in_param, out_param, in_modifier, 289 op_modifier, op, token); 290 else 291 err = mthca_cmd_post_hcr(dev, in_param, out_param, in_modifier, 292 op_modifier, op, token, event); 293 294 /* 295 * Make sure that our HCR writes don't get mixed in with 296 * writes from another CPU starting a FW command. 297 */ 298 mmiowb(); 299 300 mutex_unlock(&dev->cmd.hcr_mutex); 301 return err; 302 } 303 304 static int mthca_status_to_errno(u8 status) 305 { 306 static const int trans_table[] = { 307 [MTHCA_CMD_STAT_INTERNAL_ERR] = -EIO, 308 [MTHCA_CMD_STAT_BAD_OP] = -EPERM, 309 [MTHCA_CMD_STAT_BAD_PARAM] = -EINVAL, 310 [MTHCA_CMD_STAT_BAD_SYS_STATE] = -ENXIO, 311 [MTHCA_CMD_STAT_BAD_RESOURCE] = -EBADF, 312 [MTHCA_CMD_STAT_RESOURCE_BUSY] = -EBUSY, 313 [MTHCA_CMD_STAT_DDR_MEM_ERR] = -ENOMEM, 314 [MTHCA_CMD_STAT_EXCEED_LIM] = -ENOMEM, 315 [MTHCA_CMD_STAT_BAD_RES_STATE] = -EBADF, 316 [MTHCA_CMD_STAT_BAD_INDEX] = -EBADF, 317 [MTHCA_CMD_STAT_BAD_NVMEM] = -EFAULT, 318 [MTHCA_CMD_STAT_BAD_QPEE_STATE] = -EINVAL, 319 [MTHCA_CMD_STAT_BAD_SEG_PARAM] = -EFAULT, 320 [MTHCA_CMD_STAT_REG_BOUND] = -EBUSY, 321 [MTHCA_CMD_STAT_LAM_NOT_PRE] = -EAGAIN, 322 [MTHCA_CMD_STAT_BAD_PKT] = -EBADMSG, 323 [MTHCA_CMD_STAT_BAD_SIZE] = -ENOMEM, 324 }; 325 326 if (status >= ARRAY_SIZE(trans_table) || 327 (status != MTHCA_CMD_STAT_OK 328 && trans_table[status] == 0)) 329 return -EINVAL; 330 331 return trans_table[status]; 332 } 333 334 static int mthca_cmd_poll(struct mthca_dev *dev, 335 u64 in_param, 336 u64 *out_param, 337 int out_is_imm, 338 u32 in_modifier, 339 u8 op_modifier, 340 u16 op, 341 unsigned long timeout) 342 { 343 int err = 0; 344 unsigned long end; 345 u8 status; 346 347 down(&dev->cmd.poll_sem); 348 349 err = mthca_cmd_post(dev, in_param, 350 out_param ? *out_param : 0, 351 in_modifier, op_modifier, 352 op, CMD_POLL_TOKEN, 0); 353 if (err) 354 goto out; 355 356 end = timeout + jiffies; 357 while (go_bit(dev) && time_before(jiffies, end)) { 358 set_current_state(TASK_RUNNING); 359 schedule(); 360 } 361 362 if (go_bit(dev)) { 363 err = -EBUSY; 364 goto out; 365 } 366 367 if (out_is_imm) 368 *out_param = 369 (u64) be32_to_cpu((__force __be32) 370 __raw_readl(dev->hcr + HCR_OUT_PARAM_OFFSET)) << 32 | 371 (u64) be32_to_cpu((__force __be32) 372 __raw_readl(dev->hcr + HCR_OUT_PARAM_OFFSET + 4)); 373 374 status = be32_to_cpu((__force __be32) __raw_readl(dev->hcr + HCR_STATUS_OFFSET)) >> 24; 375 if (status) { 376 mthca_dbg(dev, "Command %02x completed with status %02x\n", 377 op, status); 378 err = mthca_status_to_errno(status); 379 } 380 381 out: 382 up(&dev->cmd.poll_sem); 383 return err; 384 } 385 386 void mthca_cmd_event(struct mthca_dev *dev, 387 u16 token, 388 u8 status, 389 u64 out_param) 390 { 391 struct mthca_cmd_context *context = 392 &dev->cmd.context[token & dev->cmd.token_mask]; 393 394 /* previously timed out command completing at long last */ 395 if (token != context->token) 396 return; 397 398 context->result = 0; 399 context->status = status; 400 context->out_param = out_param; 401 402 complete(&context->done); 403 } 404 405 static int mthca_cmd_wait(struct mthca_dev *dev, 406 u64 in_param, 407 u64 *out_param, 408 int out_is_imm, 409 u32 in_modifier, 410 u8 op_modifier, 411 u16 op, 412 unsigned long timeout) 413 { 414 int err = 0; 415 struct mthca_cmd_context *context; 416 417 down(&dev->cmd.event_sem); 418 419 spin_lock(&dev->cmd.context_lock); 420 BUG_ON(dev->cmd.free_head < 0); 421 context = &dev->cmd.context[dev->cmd.free_head]; 422 context->token += dev->cmd.token_mask + 1; 423 dev->cmd.free_head = context->next; 424 spin_unlock(&dev->cmd.context_lock); 425 426 init_completion(&context->done); 427 428 err = mthca_cmd_post(dev, in_param, 429 out_param ? *out_param : 0, 430 in_modifier, op_modifier, 431 op, context->token, 1); 432 if (err) 433 goto out; 434 435 if (!wait_for_completion_timeout(&context->done, timeout)) { 436 err = -EBUSY; 437 goto out; 438 } 439 440 err = context->result; 441 if (err) 442 goto out; 443 444 if (context->status) { 445 mthca_dbg(dev, "Command %02x completed with status %02x\n", 446 op, context->status); 447 err = mthca_status_to_errno(context->status); 448 } 449 450 if (out_is_imm) 451 *out_param = context->out_param; 452 453 out: 454 spin_lock(&dev->cmd.context_lock); 455 context->next = dev->cmd.free_head; 456 dev->cmd.free_head = context - dev->cmd.context; 457 spin_unlock(&dev->cmd.context_lock); 458 459 up(&dev->cmd.event_sem); 460 return err; 461 } 462 463 /* Invoke a command with an output mailbox */ 464 static int mthca_cmd_box(struct mthca_dev *dev, 465 u64 in_param, 466 u64 out_param, 467 u32 in_modifier, 468 u8 op_modifier, 469 u16 op, 470 unsigned long timeout) 471 { 472 if (dev->cmd.flags & MTHCA_CMD_USE_EVENTS) 473 return mthca_cmd_wait(dev, in_param, &out_param, 0, 474 in_modifier, op_modifier, op, 475 timeout); 476 else 477 return mthca_cmd_poll(dev, in_param, &out_param, 0, 478 in_modifier, op_modifier, op, 479 timeout); 480 } 481 482 /* Invoke a command with no output parameter */ 483 static int mthca_cmd(struct mthca_dev *dev, 484 u64 in_param, 485 u32 in_modifier, 486 u8 op_modifier, 487 u16 op, 488 unsigned long timeout) 489 { 490 return mthca_cmd_box(dev, in_param, 0, in_modifier, 491 op_modifier, op, timeout); 492 } 493 494 /* 495 * Invoke a command with an immediate output parameter (and copy the 496 * output into the caller's out_param pointer after the command 497 * executes). 498 */ 499 static int mthca_cmd_imm(struct mthca_dev *dev, 500 u64 in_param, 501 u64 *out_param, 502 u32 in_modifier, 503 u8 op_modifier, 504 u16 op, 505 unsigned long timeout) 506 { 507 if (dev->cmd.flags & MTHCA_CMD_USE_EVENTS) 508 return mthca_cmd_wait(dev, in_param, out_param, 1, 509 in_modifier, op_modifier, op, 510 timeout); 511 else 512 return mthca_cmd_poll(dev, in_param, out_param, 1, 513 in_modifier, op_modifier, op, 514 timeout); 515 } 516 517 int mthca_cmd_init(struct mthca_dev *dev) 518 { 519 mutex_init(&dev->cmd.hcr_mutex); 520 sema_init(&dev->cmd.poll_sem, 1); 521 dev->cmd.flags = 0; 522 523 dev->hcr = ioremap(pci_resource_start(dev->pdev, 0) + MTHCA_HCR_BASE, 524 MTHCA_HCR_SIZE); 525 if (!dev->hcr) { 526 mthca_err(dev, "Couldn't map command register."); 527 return -ENOMEM; 528 } 529 530 dev->cmd.pool = pci_pool_create("mthca_cmd", dev->pdev, 531 MTHCA_MAILBOX_SIZE, 532 MTHCA_MAILBOX_SIZE, 0); 533 if (!dev->cmd.pool) { 534 iounmap(dev->hcr); 535 return -ENOMEM; 536 } 537 538 return 0; 539 } 540 541 void mthca_cmd_cleanup(struct mthca_dev *dev) 542 { 543 pci_pool_destroy(dev->cmd.pool); 544 iounmap(dev->hcr); 545 if (dev->cmd.flags & MTHCA_CMD_POST_DOORBELLS) 546 iounmap(dev->cmd.dbell_map); 547 } 548 549 /* 550 * Switch to using events to issue FW commands (should be called after 551 * event queue to command events has been initialized). 552 */ 553 int mthca_cmd_use_events(struct mthca_dev *dev) 554 { 555 int i; 556 557 dev->cmd.context = kmalloc(dev->cmd.max_cmds * 558 sizeof (struct mthca_cmd_context), 559 GFP_KERNEL); 560 if (!dev->cmd.context) 561 return -ENOMEM; 562 563 for (i = 0; i < dev->cmd.max_cmds; ++i) { 564 dev->cmd.context[i].token = i; 565 dev->cmd.context[i].next = i + 1; 566 } 567 568 dev->cmd.context[dev->cmd.max_cmds - 1].next = -1; 569 dev->cmd.free_head = 0; 570 571 sema_init(&dev->cmd.event_sem, dev->cmd.max_cmds); 572 spin_lock_init(&dev->cmd.context_lock); 573 574 for (dev->cmd.token_mask = 1; 575 dev->cmd.token_mask < dev->cmd.max_cmds; 576 dev->cmd.token_mask <<= 1) 577 ; /* nothing */ 578 --dev->cmd.token_mask; 579 580 dev->cmd.flags |= MTHCA_CMD_USE_EVENTS; 581 582 down(&dev->cmd.poll_sem); 583 584 return 0; 585 } 586 587 /* 588 * Switch back to polling (used when shutting down the device) 589 */ 590 void mthca_cmd_use_polling(struct mthca_dev *dev) 591 { 592 int i; 593 594 dev->cmd.flags &= ~MTHCA_CMD_USE_EVENTS; 595 596 for (i = 0; i < dev->cmd.max_cmds; ++i) 597 down(&dev->cmd.event_sem); 598 599 kfree(dev->cmd.context); 600 601 up(&dev->cmd.poll_sem); 602 } 603 604 struct mthca_mailbox *mthca_alloc_mailbox(struct mthca_dev *dev, 605 gfp_t gfp_mask) 606 { 607 struct mthca_mailbox *mailbox; 608 609 mailbox = kmalloc(sizeof *mailbox, gfp_mask); 610 if (!mailbox) 611 return ERR_PTR(-ENOMEM); 612 613 mailbox->buf = pci_pool_alloc(dev->cmd.pool, gfp_mask, &mailbox->dma); 614 if (!mailbox->buf) { 615 kfree(mailbox); 616 return ERR_PTR(-ENOMEM); 617 } 618 619 return mailbox; 620 } 621 622 void mthca_free_mailbox(struct mthca_dev *dev, struct mthca_mailbox *mailbox) 623 { 624 if (!mailbox) 625 return; 626 627 pci_pool_free(dev->cmd.pool, mailbox->buf, mailbox->dma); 628 kfree(mailbox); 629 } 630 631 int mthca_SYS_EN(struct mthca_dev *dev) 632 { 633 u64 out; 634 int ret; 635 636 ret = mthca_cmd_imm(dev, 0, &out, 0, 0, CMD_SYS_EN, CMD_TIME_CLASS_D); 637 638 if (ret == -ENOMEM) 639 mthca_warn(dev, "SYS_EN DDR error: syn=%x, sock=%d, " 640 "sladdr=%d, SPD source=%s\n", 641 (int) (out >> 6) & 0xf, (int) (out >> 4) & 3, 642 (int) (out >> 1) & 7, (int) out & 1 ? "NVMEM" : "DIMM"); 643 644 return ret; 645 } 646 647 int mthca_SYS_DIS(struct mthca_dev *dev) 648 { 649 return mthca_cmd(dev, 0, 0, 0, CMD_SYS_DIS, CMD_TIME_CLASS_C); 650 } 651 652 static int mthca_map_cmd(struct mthca_dev *dev, u16 op, struct mthca_icm *icm, 653 u64 virt) 654 { 655 struct mthca_mailbox *mailbox; 656 struct mthca_icm_iter iter; 657 __be64 *pages; 658 int lg; 659 int nent = 0; 660 int i; 661 int err = 0; 662 int ts = 0, tc = 0; 663 664 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 665 if (IS_ERR(mailbox)) 666 return PTR_ERR(mailbox); 667 memset(mailbox->buf, 0, MTHCA_MAILBOX_SIZE); 668 pages = mailbox->buf; 669 670 for (mthca_icm_first(icm, &iter); 671 !mthca_icm_last(&iter); 672 mthca_icm_next(&iter)) { 673 /* 674 * We have to pass pages that are aligned to their 675 * size, so find the least significant 1 in the 676 * address or size and use that as our log2 size. 677 */ 678 lg = ffs(mthca_icm_addr(&iter) | mthca_icm_size(&iter)) - 1; 679 if (lg < MTHCA_ICM_PAGE_SHIFT) { 680 mthca_warn(dev, "Got FW area not aligned to %d (%llx/%lx).\n", 681 MTHCA_ICM_PAGE_SIZE, 682 (unsigned long long) mthca_icm_addr(&iter), 683 mthca_icm_size(&iter)); 684 err = -EINVAL; 685 goto out; 686 } 687 for (i = 0; i < mthca_icm_size(&iter) >> lg; ++i) { 688 if (virt != -1) { 689 pages[nent * 2] = cpu_to_be64(virt); 690 virt += 1 << lg; 691 } 692 693 pages[nent * 2 + 1] = 694 cpu_to_be64((mthca_icm_addr(&iter) + (i << lg)) | 695 (lg - MTHCA_ICM_PAGE_SHIFT)); 696 ts += 1 << (lg - 10); 697 ++tc; 698 699 if (++nent == MTHCA_MAILBOX_SIZE / 16) { 700 err = mthca_cmd(dev, mailbox->dma, nent, 0, op, 701 CMD_TIME_CLASS_B); 702 if (err) 703 goto out; 704 nent = 0; 705 } 706 } 707 } 708 709 if (nent) 710 err = mthca_cmd(dev, mailbox->dma, nent, 0, op, 711 CMD_TIME_CLASS_B); 712 713 switch (op) { 714 case CMD_MAP_FA: 715 mthca_dbg(dev, "Mapped %d chunks/%d KB for FW.\n", tc, ts); 716 break; 717 case CMD_MAP_ICM_AUX: 718 mthca_dbg(dev, "Mapped %d chunks/%d KB for ICM aux.\n", tc, ts); 719 break; 720 case CMD_MAP_ICM: 721 mthca_dbg(dev, "Mapped %d chunks/%d KB at %llx for ICM.\n", 722 tc, ts, (unsigned long long) virt - (ts << 10)); 723 break; 724 } 725 726 out: 727 mthca_free_mailbox(dev, mailbox); 728 return err; 729 } 730 731 int mthca_MAP_FA(struct mthca_dev *dev, struct mthca_icm *icm) 732 { 733 return mthca_map_cmd(dev, CMD_MAP_FA, icm, -1); 734 } 735 736 int mthca_UNMAP_FA(struct mthca_dev *dev) 737 { 738 return mthca_cmd(dev, 0, 0, 0, CMD_UNMAP_FA, CMD_TIME_CLASS_B); 739 } 740 741 int mthca_RUN_FW(struct mthca_dev *dev) 742 { 743 return mthca_cmd(dev, 0, 0, 0, CMD_RUN_FW, CMD_TIME_CLASS_A); 744 } 745 746 static void mthca_setup_cmd_doorbells(struct mthca_dev *dev, u64 base) 747 { 748 phys_addr_t addr; 749 u16 max_off = 0; 750 int i; 751 752 for (i = 0; i < 8; ++i) 753 max_off = max(max_off, dev->cmd.dbell_offsets[i]); 754 755 if ((base & PAGE_MASK) != ((base + max_off) & PAGE_MASK)) { 756 mthca_warn(dev, "Firmware doorbell region at 0x%016llx, " 757 "length 0x%x crosses a page boundary\n", 758 (unsigned long long) base, max_off); 759 return; 760 } 761 762 addr = pci_resource_start(dev->pdev, 2) + 763 ((pci_resource_len(dev->pdev, 2) - 1) & base); 764 dev->cmd.dbell_map = ioremap(addr, max_off + sizeof(u32)); 765 if (!dev->cmd.dbell_map) 766 return; 767 768 dev->cmd.flags |= MTHCA_CMD_POST_DOORBELLS; 769 mthca_dbg(dev, "Mapped doorbell page for posting FW commands\n"); 770 } 771 772 int mthca_QUERY_FW(struct mthca_dev *dev) 773 { 774 struct mthca_mailbox *mailbox; 775 u32 *outbox; 776 u64 base; 777 u32 tmp; 778 int err = 0; 779 u8 lg; 780 int i; 781 782 #define QUERY_FW_OUT_SIZE 0x100 783 #define QUERY_FW_VER_OFFSET 0x00 784 #define QUERY_FW_MAX_CMD_OFFSET 0x0f 785 #define QUERY_FW_ERR_START_OFFSET 0x30 786 #define QUERY_FW_ERR_SIZE_OFFSET 0x38 787 788 #define QUERY_FW_CMD_DB_EN_OFFSET 0x10 789 #define QUERY_FW_CMD_DB_OFFSET 0x50 790 #define QUERY_FW_CMD_DB_BASE 0x60 791 792 #define QUERY_FW_START_OFFSET 0x20 793 #define QUERY_FW_END_OFFSET 0x28 794 795 #define QUERY_FW_SIZE_OFFSET 0x00 796 #define QUERY_FW_CLR_INT_BASE_OFFSET 0x20 797 #define QUERY_FW_EQ_ARM_BASE_OFFSET 0x40 798 #define QUERY_FW_EQ_SET_CI_BASE_OFFSET 0x48 799 800 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 801 if (IS_ERR(mailbox)) 802 return PTR_ERR(mailbox); 803 outbox = mailbox->buf; 804 805 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_FW, 806 CMD_TIME_CLASS_A); 807 808 if (err) 809 goto out; 810 811 MTHCA_GET(dev->fw_ver, outbox, QUERY_FW_VER_OFFSET); 812 /* 813 * FW subminor version is at more significant bits than minor 814 * version, so swap here. 815 */ 816 dev->fw_ver = (dev->fw_ver & 0xffff00000000ull) | 817 ((dev->fw_ver & 0xffff0000ull) >> 16) | 818 ((dev->fw_ver & 0x0000ffffull) << 16); 819 820 MTHCA_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET); 821 dev->cmd.max_cmds = 1 << lg; 822 823 mthca_dbg(dev, "FW version %012llx, max commands %d\n", 824 (unsigned long long) dev->fw_ver, dev->cmd.max_cmds); 825 826 MTHCA_GET(dev->catas_err.addr, outbox, QUERY_FW_ERR_START_OFFSET); 827 MTHCA_GET(dev->catas_err.size, outbox, QUERY_FW_ERR_SIZE_OFFSET); 828 829 mthca_dbg(dev, "Catastrophic error buffer at 0x%llx, size 0x%x\n", 830 (unsigned long long) dev->catas_err.addr, dev->catas_err.size); 831 832 MTHCA_GET(tmp, outbox, QUERY_FW_CMD_DB_EN_OFFSET); 833 if (tmp & 0x1) { 834 mthca_dbg(dev, "FW supports commands through doorbells\n"); 835 836 MTHCA_GET(base, outbox, QUERY_FW_CMD_DB_BASE); 837 for (i = 0; i < MTHCA_CMD_NUM_DBELL_DWORDS; ++i) 838 MTHCA_GET(dev->cmd.dbell_offsets[i], outbox, 839 QUERY_FW_CMD_DB_OFFSET + (i << 1)); 840 841 mthca_setup_cmd_doorbells(dev, base); 842 } 843 844 if (mthca_is_memfree(dev)) { 845 MTHCA_GET(dev->fw.arbel.fw_pages, outbox, QUERY_FW_SIZE_OFFSET); 846 MTHCA_GET(dev->fw.arbel.clr_int_base, outbox, QUERY_FW_CLR_INT_BASE_OFFSET); 847 MTHCA_GET(dev->fw.arbel.eq_arm_base, outbox, QUERY_FW_EQ_ARM_BASE_OFFSET); 848 MTHCA_GET(dev->fw.arbel.eq_set_ci_base, outbox, QUERY_FW_EQ_SET_CI_BASE_OFFSET); 849 mthca_dbg(dev, "FW size %d KB\n", dev->fw.arbel.fw_pages << 2); 850 851 /* 852 * Round up number of system pages needed in case 853 * MTHCA_ICM_PAGE_SIZE < PAGE_SIZE. 854 */ 855 dev->fw.arbel.fw_pages = 856 ALIGN(dev->fw.arbel.fw_pages, PAGE_SIZE / MTHCA_ICM_PAGE_SIZE) >> 857 (PAGE_SHIFT - MTHCA_ICM_PAGE_SHIFT); 858 859 mthca_dbg(dev, "Clear int @ %llx, EQ arm @ %llx, EQ set CI @ %llx\n", 860 (unsigned long long) dev->fw.arbel.clr_int_base, 861 (unsigned long long) dev->fw.arbel.eq_arm_base, 862 (unsigned long long) dev->fw.arbel.eq_set_ci_base); 863 } else { 864 MTHCA_GET(dev->fw.tavor.fw_start, outbox, QUERY_FW_START_OFFSET); 865 MTHCA_GET(dev->fw.tavor.fw_end, outbox, QUERY_FW_END_OFFSET); 866 867 mthca_dbg(dev, "FW size %d KB (start %llx, end %llx)\n", 868 (int) ((dev->fw.tavor.fw_end - dev->fw.tavor.fw_start) >> 10), 869 (unsigned long long) dev->fw.tavor.fw_start, 870 (unsigned long long) dev->fw.tavor.fw_end); 871 } 872 873 out: 874 mthca_free_mailbox(dev, mailbox); 875 return err; 876 } 877 878 int mthca_ENABLE_LAM(struct mthca_dev *dev) 879 { 880 struct mthca_mailbox *mailbox; 881 u8 info; 882 u32 *outbox; 883 int err = 0; 884 885 #define ENABLE_LAM_OUT_SIZE 0x100 886 #define ENABLE_LAM_START_OFFSET 0x00 887 #define ENABLE_LAM_END_OFFSET 0x08 888 #define ENABLE_LAM_INFO_OFFSET 0x13 889 890 #define ENABLE_LAM_INFO_HIDDEN_FLAG (1 << 4) 891 #define ENABLE_LAM_INFO_ECC_MASK 0x3 892 893 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 894 if (IS_ERR(mailbox)) 895 return PTR_ERR(mailbox); 896 outbox = mailbox->buf; 897 898 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_ENABLE_LAM, 899 CMD_TIME_CLASS_C); 900 901 if (err) 902 goto out; 903 904 MTHCA_GET(dev->ddr_start, outbox, ENABLE_LAM_START_OFFSET); 905 MTHCA_GET(dev->ddr_end, outbox, ENABLE_LAM_END_OFFSET); 906 MTHCA_GET(info, outbox, ENABLE_LAM_INFO_OFFSET); 907 908 if (!!(info & ENABLE_LAM_INFO_HIDDEN_FLAG) != 909 !!(dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN)) { 910 mthca_info(dev, "FW reports that HCA-attached memory " 911 "is %s hidden; does not match PCI config\n", 912 (info & ENABLE_LAM_INFO_HIDDEN_FLAG) ? 913 "" : "not"); 914 } 915 if (info & ENABLE_LAM_INFO_HIDDEN_FLAG) 916 mthca_dbg(dev, "HCA-attached memory is hidden.\n"); 917 918 mthca_dbg(dev, "HCA memory size %d KB (start %llx, end %llx)\n", 919 (int) ((dev->ddr_end - dev->ddr_start) >> 10), 920 (unsigned long long) dev->ddr_start, 921 (unsigned long long) dev->ddr_end); 922 923 out: 924 mthca_free_mailbox(dev, mailbox); 925 return err; 926 } 927 928 int mthca_DISABLE_LAM(struct mthca_dev *dev) 929 { 930 return mthca_cmd(dev, 0, 0, 0, CMD_SYS_DIS, CMD_TIME_CLASS_C); 931 } 932 933 int mthca_QUERY_DDR(struct mthca_dev *dev) 934 { 935 struct mthca_mailbox *mailbox; 936 u8 info; 937 u32 *outbox; 938 int err = 0; 939 940 #define QUERY_DDR_OUT_SIZE 0x100 941 #define QUERY_DDR_START_OFFSET 0x00 942 #define QUERY_DDR_END_OFFSET 0x08 943 #define QUERY_DDR_INFO_OFFSET 0x13 944 945 #define QUERY_DDR_INFO_HIDDEN_FLAG (1 << 4) 946 #define QUERY_DDR_INFO_ECC_MASK 0x3 947 948 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 949 if (IS_ERR(mailbox)) 950 return PTR_ERR(mailbox); 951 outbox = mailbox->buf; 952 953 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_DDR, 954 CMD_TIME_CLASS_A); 955 956 if (err) 957 goto out; 958 959 MTHCA_GET(dev->ddr_start, outbox, QUERY_DDR_START_OFFSET); 960 MTHCA_GET(dev->ddr_end, outbox, QUERY_DDR_END_OFFSET); 961 MTHCA_GET(info, outbox, QUERY_DDR_INFO_OFFSET); 962 963 if (!!(info & QUERY_DDR_INFO_HIDDEN_FLAG) != 964 !!(dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN)) { 965 mthca_info(dev, "FW reports that HCA-attached memory " 966 "is %s hidden; does not match PCI config\n", 967 (info & QUERY_DDR_INFO_HIDDEN_FLAG) ? 968 "" : "not"); 969 } 970 if (info & QUERY_DDR_INFO_HIDDEN_FLAG) 971 mthca_dbg(dev, "HCA-attached memory is hidden.\n"); 972 973 mthca_dbg(dev, "HCA memory size %d KB (start %llx, end %llx)\n", 974 (int) ((dev->ddr_end - dev->ddr_start) >> 10), 975 (unsigned long long) dev->ddr_start, 976 (unsigned long long) dev->ddr_end); 977 978 out: 979 mthca_free_mailbox(dev, mailbox); 980 return err; 981 } 982 983 int mthca_QUERY_DEV_LIM(struct mthca_dev *dev, 984 struct mthca_dev_lim *dev_lim) 985 { 986 struct mthca_mailbox *mailbox; 987 u32 *outbox; 988 u8 field; 989 u16 size; 990 u16 stat_rate; 991 int err; 992 993 #define QUERY_DEV_LIM_OUT_SIZE 0x100 994 #define QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET 0x10 995 #define QUERY_DEV_LIM_MAX_QP_SZ_OFFSET 0x11 996 #define QUERY_DEV_LIM_RSVD_QP_OFFSET 0x12 997 #define QUERY_DEV_LIM_MAX_QP_OFFSET 0x13 998 #define QUERY_DEV_LIM_RSVD_SRQ_OFFSET 0x14 999 #define QUERY_DEV_LIM_MAX_SRQ_OFFSET 0x15 1000 #define QUERY_DEV_LIM_RSVD_EEC_OFFSET 0x16 1001 #define QUERY_DEV_LIM_MAX_EEC_OFFSET 0x17 1002 #define QUERY_DEV_LIM_MAX_CQ_SZ_OFFSET 0x19 1003 #define QUERY_DEV_LIM_RSVD_CQ_OFFSET 0x1a 1004 #define QUERY_DEV_LIM_MAX_CQ_OFFSET 0x1b 1005 #define QUERY_DEV_LIM_MAX_MPT_OFFSET 0x1d 1006 #define QUERY_DEV_LIM_RSVD_EQ_OFFSET 0x1e 1007 #define QUERY_DEV_LIM_MAX_EQ_OFFSET 0x1f 1008 #define QUERY_DEV_LIM_RSVD_MTT_OFFSET 0x20 1009 #define QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET 0x21 1010 #define QUERY_DEV_LIM_RSVD_MRW_OFFSET 0x22 1011 #define QUERY_DEV_LIM_MAX_MTT_SEG_OFFSET 0x23 1012 #define QUERY_DEV_LIM_MAX_AV_OFFSET 0x27 1013 #define QUERY_DEV_LIM_MAX_REQ_QP_OFFSET 0x29 1014 #define QUERY_DEV_LIM_MAX_RES_QP_OFFSET 0x2b 1015 #define QUERY_DEV_LIM_MAX_RDMA_OFFSET 0x2f 1016 #define QUERY_DEV_LIM_RSZ_SRQ_OFFSET 0x33 1017 #define QUERY_DEV_LIM_ACK_DELAY_OFFSET 0x35 1018 #define QUERY_DEV_LIM_MTU_WIDTH_OFFSET 0x36 1019 #define QUERY_DEV_LIM_VL_PORT_OFFSET 0x37 1020 #define QUERY_DEV_LIM_MAX_GID_OFFSET 0x3b 1021 #define QUERY_DEV_LIM_RATE_SUPPORT_OFFSET 0x3c 1022 #define QUERY_DEV_LIM_MAX_PKEY_OFFSET 0x3f 1023 #define QUERY_DEV_LIM_FLAGS_OFFSET 0x44 1024 #define QUERY_DEV_LIM_RSVD_UAR_OFFSET 0x48 1025 #define QUERY_DEV_LIM_UAR_SZ_OFFSET 0x49 1026 #define QUERY_DEV_LIM_PAGE_SZ_OFFSET 0x4b 1027 #define QUERY_DEV_LIM_MAX_SG_OFFSET 0x51 1028 #define QUERY_DEV_LIM_MAX_DESC_SZ_OFFSET 0x52 1029 #define QUERY_DEV_LIM_MAX_SG_RQ_OFFSET 0x55 1030 #define QUERY_DEV_LIM_MAX_DESC_SZ_RQ_OFFSET 0x56 1031 #define QUERY_DEV_LIM_MAX_QP_MCG_OFFSET 0x61 1032 #define QUERY_DEV_LIM_RSVD_MCG_OFFSET 0x62 1033 #define QUERY_DEV_LIM_MAX_MCG_OFFSET 0x63 1034 #define QUERY_DEV_LIM_RSVD_PD_OFFSET 0x64 1035 #define QUERY_DEV_LIM_MAX_PD_OFFSET 0x65 1036 #define QUERY_DEV_LIM_RSVD_RDD_OFFSET 0x66 1037 #define QUERY_DEV_LIM_MAX_RDD_OFFSET 0x67 1038 #define QUERY_DEV_LIM_EEC_ENTRY_SZ_OFFSET 0x80 1039 #define QUERY_DEV_LIM_QPC_ENTRY_SZ_OFFSET 0x82 1040 #define QUERY_DEV_LIM_EEEC_ENTRY_SZ_OFFSET 0x84 1041 #define QUERY_DEV_LIM_EQPC_ENTRY_SZ_OFFSET 0x86 1042 #define QUERY_DEV_LIM_EQC_ENTRY_SZ_OFFSET 0x88 1043 #define QUERY_DEV_LIM_CQC_ENTRY_SZ_OFFSET 0x8a 1044 #define QUERY_DEV_LIM_SRQ_ENTRY_SZ_OFFSET 0x8c 1045 #define QUERY_DEV_LIM_UAR_ENTRY_SZ_OFFSET 0x8e 1046 #define QUERY_DEV_LIM_MTT_ENTRY_SZ_OFFSET 0x90 1047 #define QUERY_DEV_LIM_MPT_ENTRY_SZ_OFFSET 0x92 1048 #define QUERY_DEV_LIM_PBL_SZ_OFFSET 0x96 1049 #define QUERY_DEV_LIM_BMME_FLAGS_OFFSET 0x97 1050 #define QUERY_DEV_LIM_RSVD_LKEY_OFFSET 0x98 1051 #define QUERY_DEV_LIM_LAMR_OFFSET 0x9f 1052 #define QUERY_DEV_LIM_MAX_ICM_SZ_OFFSET 0xa0 1053 1054 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1055 if (IS_ERR(mailbox)) 1056 return PTR_ERR(mailbox); 1057 outbox = mailbox->buf; 1058 1059 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_DEV_LIM, 1060 CMD_TIME_CLASS_A); 1061 1062 if (err) 1063 goto out; 1064 1065 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_QP_OFFSET); 1066 dev_lim->reserved_qps = 1 << (field & 0xf); 1067 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_OFFSET); 1068 dev_lim->max_qps = 1 << (field & 0x1f); 1069 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_SRQ_OFFSET); 1070 dev_lim->reserved_srqs = 1 << (field >> 4); 1071 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_OFFSET); 1072 dev_lim->max_srqs = 1 << (field & 0x1f); 1073 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_EEC_OFFSET); 1074 dev_lim->reserved_eecs = 1 << (field & 0xf); 1075 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_EEC_OFFSET); 1076 dev_lim->max_eecs = 1 << (field & 0x1f); 1077 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_CQ_SZ_OFFSET); 1078 dev_lim->max_cq_sz = 1 << field; 1079 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_CQ_OFFSET); 1080 dev_lim->reserved_cqs = 1 << (field & 0xf); 1081 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_CQ_OFFSET); 1082 dev_lim->max_cqs = 1 << (field & 0x1f); 1083 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MPT_OFFSET); 1084 dev_lim->max_mpts = 1 << (field & 0x3f); 1085 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_EQ_OFFSET); 1086 dev_lim->reserved_eqs = 1 << (field & 0xf); 1087 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_EQ_OFFSET); 1088 dev_lim->max_eqs = 1 << (field & 0x7); 1089 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MTT_OFFSET); 1090 if (mthca_is_memfree(dev)) 1091 dev_lim->reserved_mtts = ALIGN((1 << (field >> 4)) * sizeof(u64), 1092 dev->limits.mtt_seg_size) / dev->limits.mtt_seg_size; 1093 else 1094 dev_lim->reserved_mtts = 1 << (field >> 4); 1095 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MRW_SZ_OFFSET); 1096 dev_lim->max_mrw_sz = 1 << field; 1097 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MRW_OFFSET); 1098 dev_lim->reserved_mrws = 1 << (field & 0xf); 1099 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MTT_SEG_OFFSET); 1100 dev_lim->max_mtt_seg = 1 << (field & 0x3f); 1101 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_REQ_QP_OFFSET); 1102 dev_lim->max_requester_per_qp = 1 << (field & 0x3f); 1103 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RES_QP_OFFSET); 1104 dev_lim->max_responder_per_qp = 1 << (field & 0x3f); 1105 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RDMA_OFFSET); 1106 dev_lim->max_rdma_global = 1 << (field & 0x3f); 1107 MTHCA_GET(field, outbox, QUERY_DEV_LIM_ACK_DELAY_OFFSET); 1108 dev_lim->local_ca_ack_delay = field & 0x1f; 1109 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MTU_WIDTH_OFFSET); 1110 dev_lim->max_mtu = field >> 4; 1111 dev_lim->max_port_width = field & 0xf; 1112 MTHCA_GET(field, outbox, QUERY_DEV_LIM_VL_PORT_OFFSET); 1113 dev_lim->max_vl = field >> 4; 1114 dev_lim->num_ports = field & 0xf; 1115 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_GID_OFFSET); 1116 dev_lim->max_gids = 1 << (field & 0xf); 1117 MTHCA_GET(stat_rate, outbox, QUERY_DEV_LIM_RATE_SUPPORT_OFFSET); 1118 dev_lim->stat_rate_support = stat_rate; 1119 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_PKEY_OFFSET); 1120 dev_lim->max_pkeys = 1 << (field & 0xf); 1121 MTHCA_GET(dev_lim->flags, outbox, QUERY_DEV_LIM_FLAGS_OFFSET); 1122 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_UAR_OFFSET); 1123 dev_lim->reserved_uars = field >> 4; 1124 MTHCA_GET(field, outbox, QUERY_DEV_LIM_UAR_SZ_OFFSET); 1125 dev_lim->uar_size = 1 << ((field & 0x3f) + 20); 1126 MTHCA_GET(field, outbox, QUERY_DEV_LIM_PAGE_SZ_OFFSET); 1127 dev_lim->min_page_sz = 1 << field; 1128 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SG_OFFSET); 1129 dev_lim->max_sg = field; 1130 1131 MTHCA_GET(size, outbox, QUERY_DEV_LIM_MAX_DESC_SZ_OFFSET); 1132 dev_lim->max_desc_sz = size; 1133 1134 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_MCG_OFFSET); 1135 dev_lim->max_qp_per_mcg = 1 << field; 1136 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_MCG_OFFSET); 1137 dev_lim->reserved_mgms = field & 0xf; 1138 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_MCG_OFFSET); 1139 dev_lim->max_mcgs = 1 << field; 1140 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_PD_OFFSET); 1141 dev_lim->reserved_pds = field >> 4; 1142 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_PD_OFFSET); 1143 dev_lim->max_pds = 1 << (field & 0x3f); 1144 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_RDD_OFFSET); 1145 dev_lim->reserved_rdds = field >> 4; 1146 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_RDD_OFFSET); 1147 dev_lim->max_rdds = 1 << (field & 0x3f); 1148 1149 MTHCA_GET(size, outbox, QUERY_DEV_LIM_EEC_ENTRY_SZ_OFFSET); 1150 dev_lim->eec_entry_sz = size; 1151 MTHCA_GET(size, outbox, QUERY_DEV_LIM_QPC_ENTRY_SZ_OFFSET); 1152 dev_lim->qpc_entry_sz = size; 1153 MTHCA_GET(size, outbox, QUERY_DEV_LIM_EEEC_ENTRY_SZ_OFFSET); 1154 dev_lim->eeec_entry_sz = size; 1155 MTHCA_GET(size, outbox, QUERY_DEV_LIM_EQPC_ENTRY_SZ_OFFSET); 1156 dev_lim->eqpc_entry_sz = size; 1157 MTHCA_GET(size, outbox, QUERY_DEV_LIM_EQC_ENTRY_SZ_OFFSET); 1158 dev_lim->eqc_entry_sz = size; 1159 MTHCA_GET(size, outbox, QUERY_DEV_LIM_CQC_ENTRY_SZ_OFFSET); 1160 dev_lim->cqc_entry_sz = size; 1161 MTHCA_GET(size, outbox, QUERY_DEV_LIM_SRQ_ENTRY_SZ_OFFSET); 1162 dev_lim->srq_entry_sz = size; 1163 MTHCA_GET(size, outbox, QUERY_DEV_LIM_UAR_ENTRY_SZ_OFFSET); 1164 dev_lim->uar_scratch_entry_sz = size; 1165 1166 if (mthca_is_memfree(dev)) { 1167 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET); 1168 dev_lim->max_srq_sz = 1 << field; 1169 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_SZ_OFFSET); 1170 dev_lim->max_qp_sz = 1 << field; 1171 MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSZ_SRQ_OFFSET); 1172 dev_lim->hca.arbel.resize_srq = field & 1; 1173 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SG_RQ_OFFSET); 1174 dev_lim->max_sg = min_t(int, field, dev_lim->max_sg); 1175 MTHCA_GET(size, outbox, QUERY_DEV_LIM_MAX_DESC_SZ_RQ_OFFSET); 1176 dev_lim->max_desc_sz = min_t(int, size, dev_lim->max_desc_sz); 1177 MTHCA_GET(size, outbox, QUERY_DEV_LIM_MPT_ENTRY_SZ_OFFSET); 1178 dev_lim->mpt_entry_sz = size; 1179 MTHCA_GET(field, outbox, QUERY_DEV_LIM_PBL_SZ_OFFSET); 1180 dev_lim->hca.arbel.max_pbl_sz = 1 << (field & 0x3f); 1181 MTHCA_GET(dev_lim->hca.arbel.bmme_flags, outbox, 1182 QUERY_DEV_LIM_BMME_FLAGS_OFFSET); 1183 MTHCA_GET(dev_lim->hca.arbel.reserved_lkey, outbox, 1184 QUERY_DEV_LIM_RSVD_LKEY_OFFSET); 1185 MTHCA_GET(field, outbox, QUERY_DEV_LIM_LAMR_OFFSET); 1186 dev_lim->hca.arbel.lam_required = field & 1; 1187 MTHCA_GET(dev_lim->hca.arbel.max_icm_sz, outbox, 1188 QUERY_DEV_LIM_MAX_ICM_SZ_OFFSET); 1189 1190 if (dev_lim->hca.arbel.bmme_flags & 1) 1191 mthca_dbg(dev, "Base MM extensions: yes " 1192 "(flags %d, max PBL %d, rsvd L_Key %08x)\n", 1193 dev_lim->hca.arbel.bmme_flags, 1194 dev_lim->hca.arbel.max_pbl_sz, 1195 dev_lim->hca.arbel.reserved_lkey); 1196 else 1197 mthca_dbg(dev, "Base MM extensions: no\n"); 1198 1199 mthca_dbg(dev, "Max ICM size %lld MB\n", 1200 (unsigned long long) dev_lim->hca.arbel.max_icm_sz >> 20); 1201 } else { 1202 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET); 1203 dev_lim->max_srq_sz = (1 << field) - 1; 1204 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_SZ_OFFSET); 1205 dev_lim->max_qp_sz = (1 << field) - 1; 1206 MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_AV_OFFSET); 1207 dev_lim->hca.tavor.max_avs = 1 << (field & 0x3f); 1208 dev_lim->mpt_entry_sz = MTHCA_MPT_ENTRY_SIZE; 1209 } 1210 1211 mthca_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n", 1212 dev_lim->max_qps, dev_lim->reserved_qps, dev_lim->qpc_entry_sz); 1213 mthca_dbg(dev, "Max SRQs: %d, reserved SRQs: %d, entry size: %d\n", 1214 dev_lim->max_srqs, dev_lim->reserved_srqs, dev_lim->srq_entry_sz); 1215 mthca_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n", 1216 dev_lim->max_cqs, dev_lim->reserved_cqs, dev_lim->cqc_entry_sz); 1217 mthca_dbg(dev, "Max EQs: %d, reserved EQs: %d, entry size: %d\n", 1218 dev_lim->max_eqs, dev_lim->reserved_eqs, dev_lim->eqc_entry_sz); 1219 mthca_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n", 1220 dev_lim->reserved_mrws, dev_lim->reserved_mtts); 1221 mthca_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n", 1222 dev_lim->max_pds, dev_lim->reserved_pds, dev_lim->reserved_uars); 1223 mthca_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n", 1224 dev_lim->max_pds, dev_lim->reserved_mgms); 1225 mthca_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n", 1226 dev_lim->max_cq_sz, dev_lim->max_qp_sz, dev_lim->max_srq_sz); 1227 1228 mthca_dbg(dev, "Flags: %08x\n", dev_lim->flags); 1229 1230 out: 1231 mthca_free_mailbox(dev, mailbox); 1232 return err; 1233 } 1234 1235 static void get_board_id(void *vsd, char *board_id) 1236 { 1237 int i; 1238 1239 #define VSD_OFFSET_SIG1 0x00 1240 #define VSD_OFFSET_SIG2 0xde 1241 #define VSD_OFFSET_MLX_BOARD_ID 0xd0 1242 #define VSD_OFFSET_TS_BOARD_ID 0x20 1243 1244 #define VSD_SIGNATURE_TOPSPIN 0x5ad 1245 1246 memset(board_id, 0, MTHCA_BOARD_ID_LEN); 1247 1248 if (be16_to_cpup(vsd + VSD_OFFSET_SIG1) == VSD_SIGNATURE_TOPSPIN && 1249 be16_to_cpup(vsd + VSD_OFFSET_SIG2) == VSD_SIGNATURE_TOPSPIN) { 1250 strlcpy(board_id, vsd + VSD_OFFSET_TS_BOARD_ID, MTHCA_BOARD_ID_LEN); 1251 } else { 1252 /* 1253 * The board ID is a string but the firmware byte 1254 * swaps each 4-byte word before passing it back to 1255 * us. Therefore we need to swab it before printing. 1256 */ 1257 for (i = 0; i < 4; ++i) 1258 ((u32 *) board_id)[i] = 1259 swab32(*(u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4)); 1260 } 1261 } 1262 1263 int mthca_QUERY_ADAPTER(struct mthca_dev *dev, 1264 struct mthca_adapter *adapter) 1265 { 1266 struct mthca_mailbox *mailbox; 1267 u32 *outbox; 1268 int err; 1269 1270 #define QUERY_ADAPTER_OUT_SIZE 0x100 1271 #define QUERY_ADAPTER_VENDOR_ID_OFFSET 0x00 1272 #define QUERY_ADAPTER_DEVICE_ID_OFFSET 0x04 1273 #define QUERY_ADAPTER_REVISION_ID_OFFSET 0x08 1274 #define QUERY_ADAPTER_INTA_PIN_OFFSET 0x10 1275 #define QUERY_ADAPTER_VSD_OFFSET 0x20 1276 1277 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1278 if (IS_ERR(mailbox)) 1279 return PTR_ERR(mailbox); 1280 outbox = mailbox->buf; 1281 1282 err = mthca_cmd_box(dev, 0, mailbox->dma, 0, 0, CMD_QUERY_ADAPTER, 1283 CMD_TIME_CLASS_A); 1284 1285 if (err) 1286 goto out; 1287 1288 if (!mthca_is_memfree(dev)) { 1289 MTHCA_GET(adapter->vendor_id, outbox, 1290 QUERY_ADAPTER_VENDOR_ID_OFFSET); 1291 MTHCA_GET(adapter->device_id, outbox, 1292 QUERY_ADAPTER_DEVICE_ID_OFFSET); 1293 MTHCA_GET(adapter->revision_id, outbox, 1294 QUERY_ADAPTER_REVISION_ID_OFFSET); 1295 } 1296 MTHCA_GET(adapter->inta_pin, outbox, QUERY_ADAPTER_INTA_PIN_OFFSET); 1297 1298 get_board_id(outbox + QUERY_ADAPTER_VSD_OFFSET / 4, 1299 adapter->board_id); 1300 1301 out: 1302 mthca_free_mailbox(dev, mailbox); 1303 return err; 1304 } 1305 1306 int mthca_INIT_HCA(struct mthca_dev *dev, 1307 struct mthca_init_hca_param *param) 1308 { 1309 struct mthca_mailbox *mailbox; 1310 __be32 *inbox; 1311 int err; 1312 1313 #define INIT_HCA_IN_SIZE 0x200 1314 #define INIT_HCA_FLAGS1_OFFSET 0x00c 1315 #define INIT_HCA_FLAGS2_OFFSET 0x014 1316 #define INIT_HCA_QPC_OFFSET 0x020 1317 #define INIT_HCA_QPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x10) 1318 #define INIT_HCA_LOG_QP_OFFSET (INIT_HCA_QPC_OFFSET + 0x17) 1319 #define INIT_HCA_EEC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x20) 1320 #define INIT_HCA_LOG_EEC_OFFSET (INIT_HCA_QPC_OFFSET + 0x27) 1321 #define INIT_HCA_SRQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x28) 1322 #define INIT_HCA_LOG_SRQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x2f) 1323 #define INIT_HCA_CQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x30) 1324 #define INIT_HCA_LOG_CQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x37) 1325 #define INIT_HCA_EQPC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x40) 1326 #define INIT_HCA_EEEC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x50) 1327 #define INIT_HCA_EQC_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x60) 1328 #define INIT_HCA_LOG_EQ_OFFSET (INIT_HCA_QPC_OFFSET + 0x67) 1329 #define INIT_HCA_RDB_BASE_OFFSET (INIT_HCA_QPC_OFFSET + 0x70) 1330 #define INIT_HCA_UDAV_OFFSET 0x0b0 1331 #define INIT_HCA_UDAV_LKEY_OFFSET (INIT_HCA_UDAV_OFFSET + 0x0) 1332 #define INIT_HCA_UDAV_PD_OFFSET (INIT_HCA_UDAV_OFFSET + 0x4) 1333 #define INIT_HCA_MCAST_OFFSET 0x0c0 1334 #define INIT_HCA_MC_BASE_OFFSET (INIT_HCA_MCAST_OFFSET + 0x00) 1335 #define INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x12) 1336 #define INIT_HCA_MC_HASH_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x16) 1337 #define INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b) 1338 #define INIT_HCA_TPT_OFFSET 0x0f0 1339 #define INIT_HCA_MPT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x00) 1340 #define INIT_HCA_MTT_SEG_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x09) 1341 #define INIT_HCA_LOG_MPT_SZ_OFFSET (INIT_HCA_TPT_OFFSET + 0x0b) 1342 #define INIT_HCA_MTT_BASE_OFFSET (INIT_HCA_TPT_OFFSET + 0x10) 1343 #define INIT_HCA_UAR_OFFSET 0x120 1344 #define INIT_HCA_UAR_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x00) 1345 #define INIT_HCA_UARC_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x09) 1346 #define INIT_HCA_LOG_UAR_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0a) 1347 #define INIT_HCA_UAR_PAGE_SZ_OFFSET (INIT_HCA_UAR_OFFSET + 0x0b) 1348 #define INIT_HCA_UAR_SCATCH_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x10) 1349 #define INIT_HCA_UAR_CTX_BASE_OFFSET (INIT_HCA_UAR_OFFSET + 0x18) 1350 1351 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1352 if (IS_ERR(mailbox)) 1353 return PTR_ERR(mailbox); 1354 inbox = mailbox->buf; 1355 1356 memset(inbox, 0, INIT_HCA_IN_SIZE); 1357 1358 if (dev->mthca_flags & MTHCA_FLAG_SINAI_OPT) 1359 MTHCA_PUT(inbox, 0x1, INIT_HCA_FLAGS1_OFFSET); 1360 1361 #if defined(__LITTLE_ENDIAN) 1362 *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) &= ~cpu_to_be32(1 << 1); 1363 #elif defined(__BIG_ENDIAN) 1364 *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) |= cpu_to_be32(1 << 1); 1365 #else 1366 #error Host endianness not defined 1367 #endif 1368 /* Check port for UD address vector: */ 1369 *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) |= cpu_to_be32(1); 1370 1371 /* Enable IPoIB checksumming if we can: */ 1372 if (dev->device_cap_flags & IB_DEVICE_UD_IP_CSUM) 1373 *(inbox + INIT_HCA_FLAGS2_OFFSET / 4) |= cpu_to_be32(7 << 3); 1374 1375 /* We leave wqe_quota, responder_exu, etc as 0 (default) */ 1376 1377 /* QPC/EEC/CQC/EQC/RDB attributes */ 1378 1379 MTHCA_PUT(inbox, param->qpc_base, INIT_HCA_QPC_BASE_OFFSET); 1380 MTHCA_PUT(inbox, param->log_num_qps, INIT_HCA_LOG_QP_OFFSET); 1381 MTHCA_PUT(inbox, param->eec_base, INIT_HCA_EEC_BASE_OFFSET); 1382 MTHCA_PUT(inbox, param->log_num_eecs, INIT_HCA_LOG_EEC_OFFSET); 1383 MTHCA_PUT(inbox, param->srqc_base, INIT_HCA_SRQC_BASE_OFFSET); 1384 MTHCA_PUT(inbox, param->log_num_srqs, INIT_HCA_LOG_SRQ_OFFSET); 1385 MTHCA_PUT(inbox, param->cqc_base, INIT_HCA_CQC_BASE_OFFSET); 1386 MTHCA_PUT(inbox, param->log_num_cqs, INIT_HCA_LOG_CQ_OFFSET); 1387 MTHCA_PUT(inbox, param->eqpc_base, INIT_HCA_EQPC_BASE_OFFSET); 1388 MTHCA_PUT(inbox, param->eeec_base, INIT_HCA_EEEC_BASE_OFFSET); 1389 MTHCA_PUT(inbox, param->eqc_base, INIT_HCA_EQC_BASE_OFFSET); 1390 MTHCA_PUT(inbox, param->log_num_eqs, INIT_HCA_LOG_EQ_OFFSET); 1391 MTHCA_PUT(inbox, param->rdb_base, INIT_HCA_RDB_BASE_OFFSET); 1392 1393 /* UD AV attributes */ 1394 1395 /* multicast attributes */ 1396 1397 MTHCA_PUT(inbox, param->mc_base, INIT_HCA_MC_BASE_OFFSET); 1398 MTHCA_PUT(inbox, param->log_mc_entry_sz, INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET); 1399 MTHCA_PUT(inbox, param->mc_hash_sz, INIT_HCA_MC_HASH_SZ_OFFSET); 1400 MTHCA_PUT(inbox, param->log_mc_table_sz, INIT_HCA_LOG_MC_TABLE_SZ_OFFSET); 1401 1402 /* TPT attributes */ 1403 1404 MTHCA_PUT(inbox, param->mpt_base, INIT_HCA_MPT_BASE_OFFSET); 1405 if (!mthca_is_memfree(dev)) 1406 MTHCA_PUT(inbox, param->mtt_seg_sz, INIT_HCA_MTT_SEG_SZ_OFFSET); 1407 MTHCA_PUT(inbox, param->log_mpt_sz, INIT_HCA_LOG_MPT_SZ_OFFSET); 1408 MTHCA_PUT(inbox, param->mtt_base, INIT_HCA_MTT_BASE_OFFSET); 1409 1410 /* UAR attributes */ 1411 { 1412 u8 uar_page_sz = PAGE_SHIFT - 12; 1413 MTHCA_PUT(inbox, uar_page_sz, INIT_HCA_UAR_PAGE_SZ_OFFSET); 1414 } 1415 1416 MTHCA_PUT(inbox, param->uar_scratch_base, INIT_HCA_UAR_SCATCH_BASE_OFFSET); 1417 1418 if (mthca_is_memfree(dev)) { 1419 MTHCA_PUT(inbox, param->log_uarc_sz, INIT_HCA_UARC_SZ_OFFSET); 1420 MTHCA_PUT(inbox, param->log_uar_sz, INIT_HCA_LOG_UAR_SZ_OFFSET); 1421 MTHCA_PUT(inbox, param->uarc_base, INIT_HCA_UAR_CTX_BASE_OFFSET); 1422 } 1423 1424 err = mthca_cmd(dev, mailbox->dma, 0, 0, 1425 CMD_INIT_HCA, CMD_TIME_CLASS_D); 1426 1427 mthca_free_mailbox(dev, mailbox); 1428 return err; 1429 } 1430 1431 int mthca_INIT_IB(struct mthca_dev *dev, 1432 struct mthca_init_ib_param *param, 1433 int port) 1434 { 1435 struct mthca_mailbox *mailbox; 1436 u32 *inbox; 1437 int err; 1438 u32 flags; 1439 1440 #define INIT_IB_IN_SIZE 56 1441 #define INIT_IB_FLAGS_OFFSET 0x00 1442 #define INIT_IB_FLAG_SIG (1 << 18) 1443 #define INIT_IB_FLAG_NG (1 << 17) 1444 #define INIT_IB_FLAG_G0 (1 << 16) 1445 #define INIT_IB_VL_SHIFT 4 1446 #define INIT_IB_PORT_WIDTH_SHIFT 8 1447 #define INIT_IB_MTU_SHIFT 12 1448 #define INIT_IB_MAX_GID_OFFSET 0x06 1449 #define INIT_IB_MAX_PKEY_OFFSET 0x0a 1450 #define INIT_IB_GUID0_OFFSET 0x10 1451 #define INIT_IB_NODE_GUID_OFFSET 0x18 1452 #define INIT_IB_SI_GUID_OFFSET 0x20 1453 1454 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1455 if (IS_ERR(mailbox)) 1456 return PTR_ERR(mailbox); 1457 inbox = mailbox->buf; 1458 1459 memset(inbox, 0, INIT_IB_IN_SIZE); 1460 1461 flags = 0; 1462 flags |= param->set_guid0 ? INIT_IB_FLAG_G0 : 0; 1463 flags |= param->set_node_guid ? INIT_IB_FLAG_NG : 0; 1464 flags |= param->set_si_guid ? INIT_IB_FLAG_SIG : 0; 1465 flags |= param->vl_cap << INIT_IB_VL_SHIFT; 1466 flags |= param->port_width << INIT_IB_PORT_WIDTH_SHIFT; 1467 flags |= param->mtu_cap << INIT_IB_MTU_SHIFT; 1468 MTHCA_PUT(inbox, flags, INIT_IB_FLAGS_OFFSET); 1469 1470 MTHCA_PUT(inbox, param->gid_cap, INIT_IB_MAX_GID_OFFSET); 1471 MTHCA_PUT(inbox, param->pkey_cap, INIT_IB_MAX_PKEY_OFFSET); 1472 MTHCA_PUT(inbox, param->guid0, INIT_IB_GUID0_OFFSET); 1473 MTHCA_PUT(inbox, param->node_guid, INIT_IB_NODE_GUID_OFFSET); 1474 MTHCA_PUT(inbox, param->si_guid, INIT_IB_SI_GUID_OFFSET); 1475 1476 err = mthca_cmd(dev, mailbox->dma, port, 0, CMD_INIT_IB, 1477 CMD_TIME_CLASS_A); 1478 1479 mthca_free_mailbox(dev, mailbox); 1480 return err; 1481 } 1482 1483 int mthca_CLOSE_IB(struct mthca_dev *dev, int port) 1484 { 1485 return mthca_cmd(dev, 0, port, 0, CMD_CLOSE_IB, CMD_TIME_CLASS_A); 1486 } 1487 1488 int mthca_CLOSE_HCA(struct mthca_dev *dev, int panic) 1489 { 1490 return mthca_cmd(dev, 0, 0, panic, CMD_CLOSE_HCA, CMD_TIME_CLASS_C); 1491 } 1492 1493 int mthca_SET_IB(struct mthca_dev *dev, struct mthca_set_ib_param *param, 1494 int port) 1495 { 1496 struct mthca_mailbox *mailbox; 1497 u32 *inbox; 1498 int err; 1499 u32 flags = 0; 1500 1501 #define SET_IB_IN_SIZE 0x40 1502 #define SET_IB_FLAGS_OFFSET 0x00 1503 #define SET_IB_FLAG_SIG (1 << 18) 1504 #define SET_IB_FLAG_RQK (1 << 0) 1505 #define SET_IB_CAP_MASK_OFFSET 0x04 1506 #define SET_IB_SI_GUID_OFFSET 0x08 1507 1508 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1509 if (IS_ERR(mailbox)) 1510 return PTR_ERR(mailbox); 1511 inbox = mailbox->buf; 1512 1513 memset(inbox, 0, SET_IB_IN_SIZE); 1514 1515 flags |= param->set_si_guid ? SET_IB_FLAG_SIG : 0; 1516 flags |= param->reset_qkey_viol ? SET_IB_FLAG_RQK : 0; 1517 MTHCA_PUT(inbox, flags, SET_IB_FLAGS_OFFSET); 1518 1519 MTHCA_PUT(inbox, param->cap_mask, SET_IB_CAP_MASK_OFFSET); 1520 MTHCA_PUT(inbox, param->si_guid, SET_IB_SI_GUID_OFFSET); 1521 1522 err = mthca_cmd(dev, mailbox->dma, port, 0, CMD_SET_IB, 1523 CMD_TIME_CLASS_B); 1524 1525 mthca_free_mailbox(dev, mailbox); 1526 return err; 1527 } 1528 1529 int mthca_MAP_ICM(struct mthca_dev *dev, struct mthca_icm *icm, u64 virt) 1530 { 1531 return mthca_map_cmd(dev, CMD_MAP_ICM, icm, virt); 1532 } 1533 1534 int mthca_MAP_ICM_page(struct mthca_dev *dev, u64 dma_addr, u64 virt) 1535 { 1536 struct mthca_mailbox *mailbox; 1537 __be64 *inbox; 1538 int err; 1539 1540 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1541 if (IS_ERR(mailbox)) 1542 return PTR_ERR(mailbox); 1543 inbox = mailbox->buf; 1544 1545 inbox[0] = cpu_to_be64(virt); 1546 inbox[1] = cpu_to_be64(dma_addr); 1547 1548 err = mthca_cmd(dev, mailbox->dma, 1, 0, CMD_MAP_ICM, 1549 CMD_TIME_CLASS_B); 1550 1551 mthca_free_mailbox(dev, mailbox); 1552 1553 if (!err) 1554 mthca_dbg(dev, "Mapped page at %llx to %llx for ICM.\n", 1555 (unsigned long long) dma_addr, (unsigned long long) virt); 1556 1557 return err; 1558 } 1559 1560 int mthca_UNMAP_ICM(struct mthca_dev *dev, u64 virt, u32 page_count) 1561 { 1562 mthca_dbg(dev, "Unmapping %d pages at %llx from ICM.\n", 1563 page_count, (unsigned long long) virt); 1564 1565 return mthca_cmd(dev, virt, page_count, 0, 1566 CMD_UNMAP_ICM, CMD_TIME_CLASS_B); 1567 } 1568 1569 int mthca_MAP_ICM_AUX(struct mthca_dev *dev, struct mthca_icm *icm) 1570 { 1571 return mthca_map_cmd(dev, CMD_MAP_ICM_AUX, icm, -1); 1572 } 1573 1574 int mthca_UNMAP_ICM_AUX(struct mthca_dev *dev) 1575 { 1576 return mthca_cmd(dev, 0, 0, 0, CMD_UNMAP_ICM_AUX, CMD_TIME_CLASS_B); 1577 } 1578 1579 int mthca_SET_ICM_SIZE(struct mthca_dev *dev, u64 icm_size, u64 *aux_pages) 1580 { 1581 int ret = mthca_cmd_imm(dev, icm_size, aux_pages, 0, 1582 0, CMD_SET_ICM_SIZE, CMD_TIME_CLASS_A); 1583 1584 if (ret) 1585 return ret; 1586 1587 /* 1588 * Round up number of system pages needed in case 1589 * MTHCA_ICM_PAGE_SIZE < PAGE_SIZE. 1590 */ 1591 *aux_pages = ALIGN(*aux_pages, PAGE_SIZE / MTHCA_ICM_PAGE_SIZE) >> 1592 (PAGE_SHIFT - MTHCA_ICM_PAGE_SHIFT); 1593 1594 return 0; 1595 } 1596 1597 int mthca_SW2HW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1598 int mpt_index) 1599 { 1600 return mthca_cmd(dev, mailbox->dma, mpt_index, 0, CMD_SW2HW_MPT, 1601 CMD_TIME_CLASS_B); 1602 } 1603 1604 int mthca_HW2SW_MPT(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1605 int mpt_index) 1606 { 1607 return mthca_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, mpt_index, 1608 !mailbox, CMD_HW2SW_MPT, 1609 CMD_TIME_CLASS_B); 1610 } 1611 1612 int mthca_WRITE_MTT(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1613 int num_mtt) 1614 { 1615 return mthca_cmd(dev, mailbox->dma, num_mtt, 0, CMD_WRITE_MTT, 1616 CMD_TIME_CLASS_B); 1617 } 1618 1619 int mthca_SYNC_TPT(struct mthca_dev *dev) 1620 { 1621 return mthca_cmd(dev, 0, 0, 0, CMD_SYNC_TPT, CMD_TIME_CLASS_B); 1622 } 1623 1624 int mthca_MAP_EQ(struct mthca_dev *dev, u64 event_mask, int unmap, 1625 int eq_num) 1626 { 1627 mthca_dbg(dev, "%s mask %016llx for eqn %d\n", 1628 unmap ? "Clearing" : "Setting", 1629 (unsigned long long) event_mask, eq_num); 1630 return mthca_cmd(dev, event_mask, (unmap << 31) | eq_num, 1631 0, CMD_MAP_EQ, CMD_TIME_CLASS_B); 1632 } 1633 1634 int mthca_SW2HW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1635 int eq_num) 1636 { 1637 return mthca_cmd(dev, mailbox->dma, eq_num, 0, CMD_SW2HW_EQ, 1638 CMD_TIME_CLASS_A); 1639 } 1640 1641 int mthca_HW2SW_EQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1642 int eq_num) 1643 { 1644 return mthca_cmd_box(dev, 0, mailbox->dma, eq_num, 0, 1645 CMD_HW2SW_EQ, 1646 CMD_TIME_CLASS_A); 1647 } 1648 1649 int mthca_SW2HW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1650 int cq_num) 1651 { 1652 return mthca_cmd(dev, mailbox->dma, cq_num, 0, CMD_SW2HW_CQ, 1653 CMD_TIME_CLASS_A); 1654 } 1655 1656 int mthca_HW2SW_CQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1657 int cq_num) 1658 { 1659 return mthca_cmd_box(dev, 0, mailbox->dma, cq_num, 0, 1660 CMD_HW2SW_CQ, 1661 CMD_TIME_CLASS_A); 1662 } 1663 1664 int mthca_RESIZE_CQ(struct mthca_dev *dev, int cq_num, u32 lkey, u8 log_size) 1665 { 1666 struct mthca_mailbox *mailbox; 1667 __be32 *inbox; 1668 int err; 1669 1670 #define RESIZE_CQ_IN_SIZE 0x40 1671 #define RESIZE_CQ_LOG_SIZE_OFFSET 0x0c 1672 #define RESIZE_CQ_LKEY_OFFSET 0x1c 1673 1674 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1675 if (IS_ERR(mailbox)) 1676 return PTR_ERR(mailbox); 1677 inbox = mailbox->buf; 1678 1679 memset(inbox, 0, RESIZE_CQ_IN_SIZE); 1680 /* 1681 * Leave start address fields zeroed out -- mthca assumes that 1682 * MRs for CQs always start at virtual address 0. 1683 */ 1684 MTHCA_PUT(inbox, log_size, RESIZE_CQ_LOG_SIZE_OFFSET); 1685 MTHCA_PUT(inbox, lkey, RESIZE_CQ_LKEY_OFFSET); 1686 1687 err = mthca_cmd(dev, mailbox->dma, cq_num, 1, CMD_RESIZE_CQ, 1688 CMD_TIME_CLASS_B); 1689 1690 mthca_free_mailbox(dev, mailbox); 1691 return err; 1692 } 1693 1694 int mthca_SW2HW_SRQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1695 int srq_num) 1696 { 1697 return mthca_cmd(dev, mailbox->dma, srq_num, 0, CMD_SW2HW_SRQ, 1698 CMD_TIME_CLASS_A); 1699 } 1700 1701 int mthca_HW2SW_SRQ(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1702 int srq_num) 1703 { 1704 return mthca_cmd_box(dev, 0, mailbox->dma, srq_num, 0, 1705 CMD_HW2SW_SRQ, 1706 CMD_TIME_CLASS_A); 1707 } 1708 1709 int mthca_QUERY_SRQ(struct mthca_dev *dev, u32 num, 1710 struct mthca_mailbox *mailbox) 1711 { 1712 return mthca_cmd_box(dev, 0, mailbox->dma, num, 0, 1713 CMD_QUERY_SRQ, CMD_TIME_CLASS_A); 1714 } 1715 1716 int mthca_ARM_SRQ(struct mthca_dev *dev, int srq_num, int limit) 1717 { 1718 return mthca_cmd(dev, limit, srq_num, 0, CMD_ARM_SRQ, 1719 CMD_TIME_CLASS_B); 1720 } 1721 1722 int mthca_MODIFY_QP(struct mthca_dev *dev, enum ib_qp_state cur, 1723 enum ib_qp_state next, u32 num, int is_ee, 1724 struct mthca_mailbox *mailbox, u32 optmask) 1725 { 1726 static const u16 op[IB_QPS_ERR + 1][IB_QPS_ERR + 1] = { 1727 [IB_QPS_RESET] = { 1728 [IB_QPS_RESET] = CMD_ERR2RST_QPEE, 1729 [IB_QPS_ERR] = CMD_2ERR_QPEE, 1730 [IB_QPS_INIT] = CMD_RST2INIT_QPEE, 1731 }, 1732 [IB_QPS_INIT] = { 1733 [IB_QPS_RESET] = CMD_ERR2RST_QPEE, 1734 [IB_QPS_ERR] = CMD_2ERR_QPEE, 1735 [IB_QPS_INIT] = CMD_INIT2INIT_QPEE, 1736 [IB_QPS_RTR] = CMD_INIT2RTR_QPEE, 1737 }, 1738 [IB_QPS_RTR] = { 1739 [IB_QPS_RESET] = CMD_ERR2RST_QPEE, 1740 [IB_QPS_ERR] = CMD_2ERR_QPEE, 1741 [IB_QPS_RTS] = CMD_RTR2RTS_QPEE, 1742 }, 1743 [IB_QPS_RTS] = { 1744 [IB_QPS_RESET] = CMD_ERR2RST_QPEE, 1745 [IB_QPS_ERR] = CMD_2ERR_QPEE, 1746 [IB_QPS_RTS] = CMD_RTS2RTS_QPEE, 1747 [IB_QPS_SQD] = CMD_RTS2SQD_QPEE, 1748 }, 1749 [IB_QPS_SQD] = { 1750 [IB_QPS_RESET] = CMD_ERR2RST_QPEE, 1751 [IB_QPS_ERR] = CMD_2ERR_QPEE, 1752 [IB_QPS_RTS] = CMD_SQD2RTS_QPEE, 1753 [IB_QPS_SQD] = CMD_SQD2SQD_QPEE, 1754 }, 1755 [IB_QPS_SQE] = { 1756 [IB_QPS_RESET] = CMD_ERR2RST_QPEE, 1757 [IB_QPS_ERR] = CMD_2ERR_QPEE, 1758 [IB_QPS_RTS] = CMD_SQERR2RTS_QPEE, 1759 }, 1760 [IB_QPS_ERR] = { 1761 [IB_QPS_RESET] = CMD_ERR2RST_QPEE, 1762 [IB_QPS_ERR] = CMD_2ERR_QPEE, 1763 } 1764 }; 1765 1766 u8 op_mod = 0; 1767 int my_mailbox = 0; 1768 int err; 1769 1770 if (op[cur][next] == CMD_ERR2RST_QPEE) { 1771 op_mod = 3; /* don't write outbox, any->reset */ 1772 1773 /* For debugging */ 1774 if (!mailbox) { 1775 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1776 if (!IS_ERR(mailbox)) { 1777 my_mailbox = 1; 1778 op_mod = 2; /* write outbox, any->reset */ 1779 } else 1780 mailbox = NULL; 1781 } 1782 1783 err = mthca_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, 1784 (!!is_ee << 24) | num, op_mod, 1785 op[cur][next], CMD_TIME_CLASS_C); 1786 1787 if (0 && mailbox) { 1788 int i; 1789 mthca_dbg(dev, "Dumping QP context:\n"); 1790 printk(" %08x\n", be32_to_cpup(mailbox->buf)); 1791 for (i = 0; i < 0x100 / 4; ++i) { 1792 if (i % 8 == 0) 1793 printk("[%02x] ", i * 4); 1794 printk(" %08x", 1795 be32_to_cpu(((__be32 *) mailbox->buf)[i + 2])); 1796 if ((i + 1) % 8 == 0) 1797 printk("\n"); 1798 } 1799 } 1800 1801 if (my_mailbox) 1802 mthca_free_mailbox(dev, mailbox); 1803 } else { 1804 if (0) { 1805 int i; 1806 mthca_dbg(dev, "Dumping QP context:\n"); 1807 printk(" opt param mask: %08x\n", be32_to_cpup(mailbox->buf)); 1808 for (i = 0; i < 0x100 / 4; ++i) { 1809 if (i % 8 == 0) 1810 printk(" [%02x] ", i * 4); 1811 printk(" %08x", 1812 be32_to_cpu(((__be32 *) mailbox->buf)[i + 2])); 1813 if ((i + 1) % 8 == 0) 1814 printk("\n"); 1815 } 1816 } 1817 1818 err = mthca_cmd(dev, mailbox->dma, optmask | (!!is_ee << 24) | num, 1819 op_mod, op[cur][next], CMD_TIME_CLASS_C); 1820 } 1821 1822 return err; 1823 } 1824 1825 int mthca_QUERY_QP(struct mthca_dev *dev, u32 num, int is_ee, 1826 struct mthca_mailbox *mailbox) 1827 { 1828 return mthca_cmd_box(dev, 0, mailbox->dma, (!!is_ee << 24) | num, 0, 1829 CMD_QUERY_QPEE, CMD_TIME_CLASS_A); 1830 } 1831 1832 int mthca_CONF_SPECIAL_QP(struct mthca_dev *dev, int type, u32 qpn) 1833 { 1834 u8 op_mod; 1835 1836 switch (type) { 1837 case IB_QPT_SMI: 1838 op_mod = 0; 1839 break; 1840 case IB_QPT_GSI: 1841 op_mod = 1; 1842 break; 1843 case IB_QPT_RAW_IPV6: 1844 op_mod = 2; 1845 break; 1846 case IB_QPT_RAW_ETHERTYPE: 1847 op_mod = 3; 1848 break; 1849 default: 1850 return -EINVAL; 1851 } 1852 1853 return mthca_cmd(dev, 0, qpn, op_mod, CMD_CONF_SPECIAL_QP, 1854 CMD_TIME_CLASS_B); 1855 } 1856 1857 int mthca_MAD_IFC(struct mthca_dev *dev, int ignore_mkey, int ignore_bkey, 1858 int port, const struct ib_wc *in_wc, const struct ib_grh *in_grh, 1859 const void *in_mad, void *response_mad) 1860 { 1861 struct mthca_mailbox *inmailbox, *outmailbox; 1862 void *inbox; 1863 int err; 1864 u32 in_modifier = port; 1865 u8 op_modifier = 0; 1866 1867 #define MAD_IFC_BOX_SIZE 0x400 1868 #define MAD_IFC_MY_QPN_OFFSET 0x100 1869 #define MAD_IFC_RQPN_OFFSET 0x108 1870 #define MAD_IFC_SL_OFFSET 0x10c 1871 #define MAD_IFC_G_PATH_OFFSET 0x10d 1872 #define MAD_IFC_RLID_OFFSET 0x10e 1873 #define MAD_IFC_PKEY_OFFSET 0x112 1874 #define MAD_IFC_GRH_OFFSET 0x140 1875 1876 inmailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1877 if (IS_ERR(inmailbox)) 1878 return PTR_ERR(inmailbox); 1879 inbox = inmailbox->buf; 1880 1881 outmailbox = mthca_alloc_mailbox(dev, GFP_KERNEL); 1882 if (IS_ERR(outmailbox)) { 1883 mthca_free_mailbox(dev, inmailbox); 1884 return PTR_ERR(outmailbox); 1885 } 1886 1887 memcpy(inbox, in_mad, 256); 1888 1889 /* 1890 * Key check traps can't be generated unless we have in_wc to 1891 * tell us where to send the trap. 1892 */ 1893 if (ignore_mkey || !in_wc) 1894 op_modifier |= 0x1; 1895 if (ignore_bkey || !in_wc) 1896 op_modifier |= 0x2; 1897 1898 if (in_wc) { 1899 u8 val; 1900 1901 memset(inbox + 256, 0, 256); 1902 1903 MTHCA_PUT(inbox, in_wc->qp->qp_num, MAD_IFC_MY_QPN_OFFSET); 1904 MTHCA_PUT(inbox, in_wc->src_qp, MAD_IFC_RQPN_OFFSET); 1905 1906 val = in_wc->sl << 4; 1907 MTHCA_PUT(inbox, val, MAD_IFC_SL_OFFSET); 1908 1909 val = in_wc->dlid_path_bits | 1910 (in_wc->wc_flags & IB_WC_GRH ? 0x80 : 0); 1911 MTHCA_PUT(inbox, val, MAD_IFC_G_PATH_OFFSET); 1912 1913 MTHCA_PUT(inbox, in_wc->slid, MAD_IFC_RLID_OFFSET); 1914 MTHCA_PUT(inbox, in_wc->pkey_index, MAD_IFC_PKEY_OFFSET); 1915 1916 if (in_grh) 1917 memcpy(inbox + MAD_IFC_GRH_OFFSET, in_grh, 40); 1918 1919 op_modifier |= 0x4; 1920 1921 in_modifier |= in_wc->slid << 16; 1922 } 1923 1924 err = mthca_cmd_box(dev, inmailbox->dma, outmailbox->dma, 1925 in_modifier, op_modifier, 1926 CMD_MAD_IFC, CMD_TIME_CLASS_C); 1927 1928 if (!err) 1929 memcpy(response_mad, outmailbox->buf, 256); 1930 1931 mthca_free_mailbox(dev, inmailbox); 1932 mthca_free_mailbox(dev, outmailbox); 1933 return err; 1934 } 1935 1936 int mthca_READ_MGM(struct mthca_dev *dev, int index, 1937 struct mthca_mailbox *mailbox) 1938 { 1939 return mthca_cmd_box(dev, 0, mailbox->dma, index, 0, 1940 CMD_READ_MGM, CMD_TIME_CLASS_A); 1941 } 1942 1943 int mthca_WRITE_MGM(struct mthca_dev *dev, int index, 1944 struct mthca_mailbox *mailbox) 1945 { 1946 return mthca_cmd(dev, mailbox->dma, index, 0, CMD_WRITE_MGM, 1947 CMD_TIME_CLASS_A); 1948 } 1949 1950 int mthca_MGID_HASH(struct mthca_dev *dev, struct mthca_mailbox *mailbox, 1951 u16 *hash) 1952 { 1953 u64 imm; 1954 int err; 1955 1956 err = mthca_cmd_imm(dev, mailbox->dma, &imm, 0, 0, CMD_MGID_HASH, 1957 CMD_TIME_CLASS_A); 1958 1959 *hash = imm; 1960 return err; 1961 } 1962 1963 int mthca_NOP(struct mthca_dev *dev) 1964 { 1965 return mthca_cmd(dev, 0, 0x1f, 0, CMD_NOP, msecs_to_jiffies(100)); 1966 } 1967