1 /* 2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. 3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 4 * 5 * This software is available to you under a choice of one of two 6 * licenses. You may choose to be licensed under the terms of the GNU 7 * General Public License (GPL) Version 2, available from the file 8 * COPYING in the main directory of this source tree, or the 9 * OpenIB.org BSD license below: 10 * 11 * Redistribution and use in source and binary forms, with or 12 * without modification, are permitted provided that the following 13 * conditions are met: 14 * 15 * - Redistributions of source code must retain the above 16 * copyright notice, this list of conditions and the following 17 * disclaimer. 18 * 19 * - Redistributions in binary form must reproduce the above 20 * copyright notice, this list of conditions and the following 21 * disclaimer in the documentation and/or other materials 22 * provided with the distribution. 23 * 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 31 * SOFTWARE. 32 * 33 * $Id: mthca_main.c 1396 2004-12-28 04:10:27Z roland $ 34 */ 35 36 #include <linux/config.h> 37 #include <linux/version.h> 38 #include <linux/module.h> 39 #include <linux/init.h> 40 #include <linux/errno.h> 41 #include <linux/pci.h> 42 #include <linux/interrupt.h> 43 44 #include "mthca_dev.h" 45 #include "mthca_config_reg.h" 46 #include "mthca_cmd.h" 47 #include "mthca_profile.h" 48 #include "mthca_memfree.h" 49 50 MODULE_AUTHOR("Roland Dreier"); 51 MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver"); 52 MODULE_LICENSE("Dual BSD/GPL"); 53 MODULE_VERSION(DRV_VERSION); 54 55 #ifdef CONFIG_PCI_MSI 56 57 static int msi_x = 0; 58 module_param(msi_x, int, 0444); 59 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero"); 60 61 static int msi = 0; 62 module_param(msi, int, 0444); 63 MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero"); 64 65 #else /* CONFIG_PCI_MSI */ 66 67 #define msi_x (0) 68 #define msi (0) 69 70 #endif /* CONFIG_PCI_MSI */ 71 72 static const char mthca_version[] __devinitdata = 73 DRV_NAME ": Mellanox InfiniBand HCA driver v" 74 DRV_VERSION " (" DRV_RELDATE ")\n"; 75 76 static struct mthca_profile default_profile = { 77 .num_qp = 1 << 16, 78 .rdb_per_qp = 4, 79 .num_cq = 1 << 16, 80 .num_mcg = 1 << 13, 81 .num_mpt = 1 << 17, 82 .num_mtt = 1 << 20, 83 .num_udav = 1 << 15, /* Tavor only */ 84 .fmr_reserved_mtts = 1 << 18, /* Tavor only */ 85 .uarc_size = 1 << 18, /* Arbel only */ 86 }; 87 88 static int __devinit mthca_tune_pci(struct mthca_dev *mdev) 89 { 90 int cap; 91 u16 val; 92 93 /* First try to max out Read Byte Count */ 94 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX); 95 if (cap) { 96 if (pci_read_config_word(mdev->pdev, cap + PCI_X_CMD, &val)) { 97 mthca_err(mdev, "Couldn't read PCI-X command register, " 98 "aborting.\n"); 99 return -ENODEV; 100 } 101 val = (val & ~PCI_X_CMD_MAX_READ) | (3 << 2); 102 if (pci_write_config_word(mdev->pdev, cap + PCI_X_CMD, val)) { 103 mthca_err(mdev, "Couldn't write PCI-X command register, " 104 "aborting.\n"); 105 return -ENODEV; 106 } 107 } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE)) 108 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n"); 109 110 cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP); 111 if (cap) { 112 if (pci_read_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, &val)) { 113 mthca_err(mdev, "Couldn't read PCI Express device control " 114 "register, aborting.\n"); 115 return -ENODEV; 116 } 117 val = (val & ~PCI_EXP_DEVCTL_READRQ) | (5 << 12); 118 if (pci_write_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, val)) { 119 mthca_err(mdev, "Couldn't write PCI Express device control " 120 "register, aborting.\n"); 121 return -ENODEV; 122 } 123 } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE) 124 mthca_info(mdev, "No PCI Express capability, " 125 "not setting Max Read Request Size.\n"); 126 127 return 0; 128 } 129 130 static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim) 131 { 132 int err; 133 u8 status; 134 135 err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status); 136 if (err) { 137 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); 138 return err; 139 } 140 if (status) { 141 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, " 142 "aborting.\n", status); 143 return -EINVAL; 144 } 145 if (dev_lim->min_page_sz > PAGE_SIZE) { 146 mthca_err(mdev, "HCA minimum page size of %d bigger than " 147 "kernel PAGE_SIZE of %ld, aborting.\n", 148 dev_lim->min_page_sz, PAGE_SIZE); 149 return -ENODEV; 150 } 151 if (dev_lim->num_ports > MTHCA_MAX_PORTS) { 152 mthca_err(mdev, "HCA has %d ports, but we only support %d, " 153 "aborting.\n", 154 dev_lim->num_ports, MTHCA_MAX_PORTS); 155 return -ENODEV; 156 } 157 158 mdev->limits.num_ports = dev_lim->num_ports; 159 mdev->limits.vl_cap = dev_lim->max_vl; 160 mdev->limits.mtu_cap = dev_lim->max_mtu; 161 mdev->limits.gid_table_len = dev_lim->max_gids; 162 mdev->limits.pkey_table_len = dev_lim->max_pkeys; 163 mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay; 164 mdev->limits.max_sg = dev_lim->max_sg; 165 mdev->limits.reserved_qps = dev_lim->reserved_qps; 166 mdev->limits.reserved_srqs = dev_lim->reserved_srqs; 167 mdev->limits.reserved_eecs = dev_lim->reserved_eecs; 168 mdev->limits.reserved_cqs = dev_lim->reserved_cqs; 169 mdev->limits.reserved_eqs = dev_lim->reserved_eqs; 170 mdev->limits.reserved_mtts = dev_lim->reserved_mtts; 171 mdev->limits.reserved_mrws = dev_lim->reserved_mrws; 172 mdev->limits.reserved_uars = dev_lim->reserved_uars; 173 mdev->limits.reserved_pds = dev_lim->reserved_pds; 174 175 /* IB_DEVICE_RESIZE_MAX_WR not supported by driver. 176 May be doable since hardware supports it for SRQ. 177 178 IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver. 179 180 IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not 181 supported by driver. */ 182 mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | 183 IB_DEVICE_PORT_ACTIVE_EVENT | 184 IB_DEVICE_SYS_IMAGE_GUID | 185 IB_DEVICE_RC_RNR_NAK_GEN; 186 187 if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR) 188 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; 189 190 if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR) 191 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; 192 193 if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI) 194 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI; 195 196 if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG) 197 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; 198 199 if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE) 200 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; 201 202 if (dev_lim->flags & DEV_LIM_FLAG_SRQ) 203 mdev->mthca_flags |= MTHCA_FLAG_SRQ; 204 205 return 0; 206 } 207 208 static int __devinit mthca_init_tavor(struct mthca_dev *mdev) 209 { 210 u8 status; 211 int err; 212 struct mthca_dev_lim dev_lim; 213 struct mthca_profile profile; 214 struct mthca_init_hca_param init_hca; 215 struct mthca_adapter adapter; 216 217 err = mthca_SYS_EN(mdev, &status); 218 if (err) { 219 mthca_err(mdev, "SYS_EN command failed, aborting.\n"); 220 return err; 221 } 222 if (status) { 223 mthca_err(mdev, "SYS_EN returned status 0x%02x, " 224 "aborting.\n", status); 225 return -EINVAL; 226 } 227 228 err = mthca_QUERY_FW(mdev, &status); 229 if (err) { 230 mthca_err(mdev, "QUERY_FW command failed, aborting.\n"); 231 goto err_disable; 232 } 233 if (status) { 234 mthca_err(mdev, "QUERY_FW returned status 0x%02x, " 235 "aborting.\n", status); 236 err = -EINVAL; 237 goto err_disable; 238 } 239 err = mthca_QUERY_DDR(mdev, &status); 240 if (err) { 241 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n"); 242 goto err_disable; 243 } 244 if (status) { 245 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, " 246 "aborting.\n", status); 247 err = -EINVAL; 248 goto err_disable; 249 } 250 251 err = mthca_dev_lim(mdev, &dev_lim); 252 253 profile = default_profile; 254 profile.num_uar = dev_lim.uar_size / PAGE_SIZE; 255 profile.uarc_size = 0; 256 257 err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); 258 if (err < 0) 259 goto err_disable; 260 261 err = mthca_INIT_HCA(mdev, &init_hca, &status); 262 if (err) { 263 mthca_err(mdev, "INIT_HCA command failed, aborting.\n"); 264 goto err_disable; 265 } 266 if (status) { 267 mthca_err(mdev, "INIT_HCA returned status 0x%02x, " 268 "aborting.\n", status); 269 err = -EINVAL; 270 goto err_disable; 271 } 272 273 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status); 274 if (err) { 275 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n"); 276 goto err_close; 277 } 278 if (status) { 279 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, " 280 "aborting.\n", status); 281 err = -EINVAL; 282 goto err_close; 283 } 284 285 mdev->eq_table.inta_pin = adapter.inta_pin; 286 mdev->rev_id = adapter.revision_id; 287 288 return 0; 289 290 err_close: 291 mthca_CLOSE_HCA(mdev, 0, &status); 292 293 err_disable: 294 mthca_SYS_DIS(mdev, &status); 295 296 return err; 297 } 298 299 static int __devinit mthca_load_fw(struct mthca_dev *mdev) 300 { 301 u8 status; 302 int err; 303 304 /* FIXME: use HCA-attached memory for FW if present */ 305 306 mdev->fw.arbel.fw_icm = 307 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages, 308 GFP_HIGHUSER | __GFP_NOWARN); 309 if (!mdev->fw.arbel.fw_icm) { 310 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n"); 311 return -ENOMEM; 312 } 313 314 err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status); 315 if (err) { 316 mthca_err(mdev, "MAP_FA command failed, aborting.\n"); 317 goto err_free; 318 } 319 if (status) { 320 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status); 321 err = -EINVAL; 322 goto err_free; 323 } 324 err = mthca_RUN_FW(mdev, &status); 325 if (err) { 326 mthca_err(mdev, "RUN_FW command failed, aborting.\n"); 327 goto err_unmap_fa; 328 } 329 if (status) { 330 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status); 331 err = -EINVAL; 332 goto err_unmap_fa; 333 } 334 335 return 0; 336 337 err_unmap_fa: 338 mthca_UNMAP_FA(mdev, &status); 339 340 err_free: 341 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); 342 return err; 343 } 344 345 static int __devinit mthca_init_icm(struct mthca_dev *mdev, 346 struct mthca_dev_lim *dev_lim, 347 struct mthca_init_hca_param *init_hca, 348 u64 icm_size) 349 { 350 u64 aux_pages; 351 u8 status; 352 int err; 353 354 err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status); 355 if (err) { 356 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n"); 357 return err; 358 } 359 if (status) { 360 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, " 361 "aborting.\n", status); 362 return -EINVAL; 363 } 364 365 mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n", 366 (unsigned long long) icm_size >> 10, 367 (unsigned long long) aux_pages << 2); 368 369 mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages, 370 GFP_HIGHUSER | __GFP_NOWARN); 371 if (!mdev->fw.arbel.aux_icm) { 372 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n"); 373 return -ENOMEM; 374 } 375 376 err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status); 377 if (err) { 378 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n"); 379 goto err_free_aux; 380 } 381 if (status) { 382 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status); 383 err = -EINVAL; 384 goto err_free_aux; 385 } 386 387 err = mthca_map_eq_icm(mdev, init_hca->eqc_base); 388 if (err) { 389 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n"); 390 goto err_unmap_aux; 391 } 392 393 mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base, 394 MTHCA_MTT_SEG_SIZE, 395 mdev->limits.num_mtt_segs, 396 mdev->limits.reserved_mtts, 1); 397 if (!mdev->mr_table.mtt_table) { 398 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n"); 399 err = -ENOMEM; 400 goto err_unmap_eq; 401 } 402 403 mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base, 404 dev_lim->mpt_entry_sz, 405 mdev->limits.num_mpts, 406 mdev->limits.reserved_mrws, 1); 407 if (!mdev->mr_table.mpt_table) { 408 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n"); 409 err = -ENOMEM; 410 goto err_unmap_mtt; 411 } 412 413 mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base, 414 dev_lim->qpc_entry_sz, 415 mdev->limits.num_qps, 416 mdev->limits.reserved_qps, 0); 417 if (!mdev->qp_table.qp_table) { 418 mthca_err(mdev, "Failed to map QP context memory, aborting.\n"); 419 err = -ENOMEM; 420 goto err_unmap_mpt; 421 } 422 423 mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base, 424 dev_lim->eqpc_entry_sz, 425 mdev->limits.num_qps, 426 mdev->limits.reserved_qps, 0); 427 if (!mdev->qp_table.eqp_table) { 428 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n"); 429 err = -ENOMEM; 430 goto err_unmap_qp; 431 } 432 433 mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base, 434 MTHCA_RDB_ENTRY_SIZE, 435 mdev->limits.num_qps << 436 mdev->qp_table.rdb_shift, 437 0, 0); 438 if (!mdev->qp_table.rdb_table) { 439 mthca_err(mdev, "Failed to map RDB context memory, aborting\n"); 440 err = -ENOMEM; 441 goto err_unmap_eqp; 442 } 443 444 mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base, 445 dev_lim->cqc_entry_sz, 446 mdev->limits.num_cqs, 447 mdev->limits.reserved_cqs, 0); 448 if (!mdev->cq_table.table) { 449 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n"); 450 err = -ENOMEM; 451 goto err_unmap_rdb; 452 } 453 454 /* 455 * It's not strictly required, but for simplicity just map the 456 * whole multicast group table now. The table isn't very big 457 * and it's a lot easier than trying to track ref counts. 458 */ 459 mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base, 460 MTHCA_MGM_ENTRY_SIZE, 461 mdev->limits.num_mgms + 462 mdev->limits.num_amgms, 463 mdev->limits.num_mgms + 464 mdev->limits.num_amgms, 465 0); 466 if (!mdev->mcg_table.table) { 467 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n"); 468 err = -ENOMEM; 469 goto err_unmap_cq; 470 } 471 472 return 0; 473 474 err_unmap_cq: 475 mthca_free_icm_table(mdev, mdev->cq_table.table); 476 477 err_unmap_rdb: 478 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); 479 480 err_unmap_eqp: 481 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); 482 483 err_unmap_qp: 484 mthca_free_icm_table(mdev, mdev->qp_table.qp_table); 485 486 err_unmap_mpt: 487 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); 488 489 err_unmap_mtt: 490 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); 491 492 err_unmap_eq: 493 mthca_unmap_eq_icm(mdev); 494 495 err_unmap_aux: 496 mthca_UNMAP_ICM_AUX(mdev, &status); 497 498 err_free_aux: 499 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm); 500 501 return err; 502 } 503 504 static int __devinit mthca_init_arbel(struct mthca_dev *mdev) 505 { 506 struct mthca_dev_lim dev_lim; 507 struct mthca_profile profile; 508 struct mthca_init_hca_param init_hca; 509 struct mthca_adapter adapter; 510 u64 icm_size; 511 u8 status; 512 int err; 513 514 err = mthca_QUERY_FW(mdev, &status); 515 if (err) { 516 mthca_err(mdev, "QUERY_FW command failed, aborting.\n"); 517 return err; 518 } 519 if (status) { 520 mthca_err(mdev, "QUERY_FW returned status 0x%02x, " 521 "aborting.\n", status); 522 return -EINVAL; 523 } 524 525 err = mthca_ENABLE_LAM(mdev, &status); 526 if (err) { 527 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n"); 528 return err; 529 } 530 if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) { 531 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n"); 532 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM; 533 } else if (status) { 534 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, " 535 "aborting.\n", status); 536 return -EINVAL; 537 } 538 539 err = mthca_load_fw(mdev); 540 if (err) { 541 mthca_err(mdev, "Failed to start FW, aborting.\n"); 542 goto err_disable; 543 } 544 545 err = mthca_dev_lim(mdev, &dev_lim); 546 if (err) { 547 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n"); 548 goto err_stop_fw; 549 } 550 551 profile = default_profile; 552 profile.num_uar = dev_lim.uar_size / PAGE_SIZE; 553 profile.num_udav = 0; 554 555 icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca); 556 if ((int) icm_size < 0) { 557 err = icm_size; 558 goto err_stop_fw; 559 } 560 561 err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size); 562 if (err) 563 goto err_stop_fw; 564 565 err = mthca_INIT_HCA(mdev, &init_hca, &status); 566 if (err) { 567 mthca_err(mdev, "INIT_HCA command failed, aborting.\n"); 568 goto err_free_icm; 569 } 570 if (status) { 571 mthca_err(mdev, "INIT_HCA returned status 0x%02x, " 572 "aborting.\n", status); 573 err = -EINVAL; 574 goto err_free_icm; 575 } 576 577 err = mthca_QUERY_ADAPTER(mdev, &adapter, &status); 578 if (err) { 579 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n"); 580 goto err_free_icm; 581 } 582 if (status) { 583 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, " 584 "aborting.\n", status); 585 err = -EINVAL; 586 goto err_free_icm; 587 } 588 589 mdev->eq_table.inta_pin = adapter.inta_pin; 590 mdev->rev_id = adapter.revision_id; 591 592 return 0; 593 594 err_free_icm: 595 mthca_free_icm_table(mdev, mdev->cq_table.table); 596 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); 597 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); 598 mthca_free_icm_table(mdev, mdev->qp_table.qp_table); 599 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); 600 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); 601 mthca_unmap_eq_icm(mdev); 602 603 mthca_UNMAP_ICM_AUX(mdev, &status); 604 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm); 605 606 err_stop_fw: 607 mthca_UNMAP_FA(mdev, &status); 608 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); 609 610 err_disable: 611 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) 612 mthca_DISABLE_LAM(mdev, &status); 613 614 return err; 615 } 616 617 static int __devinit mthca_init_hca(struct mthca_dev *mdev) 618 { 619 if (mthca_is_memfree(mdev)) 620 return mthca_init_arbel(mdev); 621 else 622 return mthca_init_tavor(mdev); 623 } 624 625 static int __devinit mthca_setup_hca(struct mthca_dev *dev) 626 { 627 int err; 628 u8 status; 629 630 MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock); 631 632 err = mthca_init_uar_table(dev); 633 if (err) { 634 mthca_err(dev, "Failed to initialize " 635 "user access region table, aborting.\n"); 636 return err; 637 } 638 639 err = mthca_uar_alloc(dev, &dev->driver_uar); 640 if (err) { 641 mthca_err(dev, "Failed to allocate driver access region, " 642 "aborting.\n"); 643 goto err_uar_table_free; 644 } 645 646 dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE); 647 if (!dev->kar) { 648 mthca_err(dev, "Couldn't map kernel access region, " 649 "aborting.\n"); 650 err = -ENOMEM; 651 goto err_uar_free; 652 } 653 654 err = mthca_init_pd_table(dev); 655 if (err) { 656 mthca_err(dev, "Failed to initialize " 657 "protection domain table, aborting.\n"); 658 goto err_kar_unmap; 659 } 660 661 err = mthca_init_mr_table(dev); 662 if (err) { 663 mthca_err(dev, "Failed to initialize " 664 "memory region table, aborting.\n"); 665 goto err_pd_table_free; 666 } 667 668 err = mthca_pd_alloc(dev, 1, &dev->driver_pd); 669 if (err) { 670 mthca_err(dev, "Failed to create driver PD, " 671 "aborting.\n"); 672 goto err_mr_table_free; 673 } 674 675 err = mthca_init_eq_table(dev); 676 if (err) { 677 mthca_err(dev, "Failed to initialize " 678 "event queue table, aborting.\n"); 679 goto err_pd_free; 680 } 681 682 err = mthca_cmd_use_events(dev); 683 if (err) { 684 mthca_err(dev, "Failed to switch to event-driven " 685 "firmware commands, aborting.\n"); 686 goto err_eq_table_free; 687 } 688 689 err = mthca_NOP(dev, &status); 690 if (err || status) { 691 mthca_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting.\n", 692 dev->mthca_flags & MTHCA_FLAG_MSI_X ? 693 dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector : 694 dev->pdev->irq); 695 if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X)) 696 mthca_err(dev, "Try again with MSI/MSI-X disabled.\n"); 697 else 698 mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n"); 699 700 goto err_cmd_poll; 701 } 702 703 mthca_dbg(dev, "NOP command IRQ test passed\n"); 704 705 err = mthca_init_cq_table(dev); 706 if (err) { 707 mthca_err(dev, "Failed to initialize " 708 "completion queue table, aborting.\n"); 709 goto err_cmd_poll; 710 } 711 712 err = mthca_init_qp_table(dev); 713 if (err) { 714 mthca_err(dev, "Failed to initialize " 715 "queue pair table, aborting.\n"); 716 goto err_cq_table_free; 717 } 718 719 err = mthca_init_av_table(dev); 720 if (err) { 721 mthca_err(dev, "Failed to initialize " 722 "address vector table, aborting.\n"); 723 goto err_qp_table_free; 724 } 725 726 err = mthca_init_mcg_table(dev); 727 if (err) { 728 mthca_err(dev, "Failed to initialize " 729 "multicast group table, aborting.\n"); 730 goto err_av_table_free; 731 } 732 733 return 0; 734 735 err_av_table_free: 736 mthca_cleanup_av_table(dev); 737 738 err_qp_table_free: 739 mthca_cleanup_qp_table(dev); 740 741 err_cq_table_free: 742 mthca_cleanup_cq_table(dev); 743 744 err_cmd_poll: 745 mthca_cmd_use_polling(dev); 746 747 err_eq_table_free: 748 mthca_cleanup_eq_table(dev); 749 750 err_pd_free: 751 mthca_pd_free(dev, &dev->driver_pd); 752 753 err_mr_table_free: 754 mthca_cleanup_mr_table(dev); 755 756 err_pd_table_free: 757 mthca_cleanup_pd_table(dev); 758 759 err_kar_unmap: 760 iounmap(dev->kar); 761 762 err_uar_free: 763 mthca_uar_free(dev, &dev->driver_uar); 764 765 err_uar_table_free: 766 mthca_cleanup_uar_table(dev); 767 return err; 768 } 769 770 static int __devinit mthca_request_regions(struct pci_dev *pdev, 771 int ddr_hidden) 772 { 773 int err; 774 775 /* 776 * We can't just use pci_request_regions() because the MSI-X 777 * table is right in the middle of the first BAR. If we did 778 * pci_request_region and grab all of the first BAR, then 779 * setting up MSI-X would fail, since the PCI core wants to do 780 * request_mem_region on the MSI-X vector table. 781 * 782 * So just request what we need right now, and request any 783 * other regions we need when setting up EQs. 784 */ 785 if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, 786 MTHCA_HCR_SIZE, DRV_NAME)) 787 return -EBUSY; 788 789 err = pci_request_region(pdev, 2, DRV_NAME); 790 if (err) 791 goto err_bar2_failed; 792 793 if (!ddr_hidden) { 794 err = pci_request_region(pdev, 4, DRV_NAME); 795 if (err) 796 goto err_bar4_failed; 797 } 798 799 return 0; 800 801 err_bar4_failed: 802 pci_release_region(pdev, 2); 803 804 err_bar2_failed: 805 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, 806 MTHCA_HCR_SIZE); 807 808 return err; 809 } 810 811 static void mthca_release_regions(struct pci_dev *pdev, 812 int ddr_hidden) 813 { 814 if (!ddr_hidden) 815 pci_release_region(pdev, 4); 816 817 pci_release_region(pdev, 2); 818 819 release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE, 820 MTHCA_HCR_SIZE); 821 } 822 823 static int __devinit mthca_enable_msi_x(struct mthca_dev *mdev) 824 { 825 struct msix_entry entries[3]; 826 int err; 827 828 entries[0].entry = 0; 829 entries[1].entry = 1; 830 entries[2].entry = 2; 831 832 err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries)); 833 if (err) { 834 if (err > 0) 835 mthca_info(mdev, "Only %d MSI-X vectors available, " 836 "not using MSI-X\n", err); 837 return err; 838 } 839 840 mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector; 841 mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector; 842 mdev->eq_table.eq[MTHCA_EQ_CMD ].msi_x_vector = entries[2].vector; 843 844 return 0; 845 } 846 847 static void mthca_close_hca(struct mthca_dev *mdev) 848 { 849 u8 status; 850 851 mthca_CLOSE_HCA(mdev, 0, &status); 852 853 if (mthca_is_memfree(mdev)) { 854 mthca_free_icm_table(mdev, mdev->cq_table.table); 855 mthca_free_icm_table(mdev, mdev->qp_table.rdb_table); 856 mthca_free_icm_table(mdev, mdev->qp_table.eqp_table); 857 mthca_free_icm_table(mdev, mdev->qp_table.qp_table); 858 mthca_free_icm_table(mdev, mdev->mr_table.mpt_table); 859 mthca_free_icm_table(mdev, mdev->mr_table.mtt_table); 860 mthca_unmap_eq_icm(mdev); 861 862 mthca_UNMAP_ICM_AUX(mdev, &status); 863 mthca_free_icm(mdev, mdev->fw.arbel.aux_icm); 864 865 mthca_UNMAP_FA(mdev, &status); 866 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm); 867 868 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM)) 869 mthca_DISABLE_LAM(mdev, &status); 870 } else 871 mthca_SYS_DIS(mdev, &status); 872 } 873 874 /* Types of supported HCA */ 875 enum { 876 TAVOR, /* MT23108 */ 877 ARBEL_COMPAT, /* MT25208 in Tavor compat mode */ 878 ARBEL_NATIVE, /* MT25208 with extended features */ 879 SINAI /* MT25204 */ 880 }; 881 882 #define MTHCA_FW_VER(major, minor, subminor) \ 883 (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor)) 884 885 static struct { 886 u64 latest_fw; 887 int is_memfree; 888 int is_pcie; 889 } mthca_hca_table[] = { 890 [TAVOR] = { .latest_fw = MTHCA_FW_VER(3, 3, 2), .is_memfree = 0, .is_pcie = 0 }, 891 [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 6, 2), .is_memfree = 0, .is_pcie = 1 }, 892 [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 0, 1), .is_memfree = 1, .is_pcie = 1 }, 893 [SINAI] = { .latest_fw = MTHCA_FW_VER(1, 0, 1), .is_memfree = 1, .is_pcie = 1 } 894 }; 895 896 static int __devinit mthca_init_one(struct pci_dev *pdev, 897 const struct pci_device_id *id) 898 { 899 static int mthca_version_printed = 0; 900 int ddr_hidden = 0; 901 int err; 902 struct mthca_dev *mdev; 903 904 if (!mthca_version_printed) { 905 printk(KERN_INFO "%s", mthca_version); 906 ++mthca_version_printed; 907 } 908 909 printk(KERN_INFO PFX "Initializing %s (%s)\n", 910 pci_pretty_name(pdev), pci_name(pdev)); 911 912 if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) { 913 printk(KERN_ERR PFX "%s (%s) has invalid driver data %lx\n", 914 pci_pretty_name(pdev), pci_name(pdev), id->driver_data); 915 return -ENODEV; 916 } 917 918 err = pci_enable_device(pdev); 919 if (err) { 920 dev_err(&pdev->dev, "Cannot enable PCI device, " 921 "aborting.\n"); 922 return err; 923 } 924 925 /* 926 * Check for BARs. We expect 0: 1MB, 2: 8MB, 4: DDR (may not 927 * be present) 928 */ 929 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) || 930 pci_resource_len(pdev, 0) != 1 << 20) { 931 dev_err(&pdev->dev, "Missing DCS, aborting.\n"); 932 err = -ENODEV; 933 goto err_disable_pdev; 934 } 935 if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM) || 936 pci_resource_len(pdev, 2) != 1 << 23) { 937 dev_err(&pdev->dev, "Missing UAR, aborting.\n"); 938 err = -ENODEV; 939 goto err_disable_pdev; 940 } 941 if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM)) 942 ddr_hidden = 1; 943 944 err = mthca_request_regions(pdev, ddr_hidden); 945 if (err) { 946 dev_err(&pdev->dev, "Cannot obtain PCI resources, " 947 "aborting.\n"); 948 goto err_disable_pdev; 949 } 950 951 pci_set_master(pdev); 952 953 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK); 954 if (err) { 955 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n"); 956 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); 957 if (err) { 958 dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n"); 959 goto err_free_res; 960 } 961 } 962 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); 963 if (err) { 964 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit " 965 "consistent PCI DMA mask.\n"); 966 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); 967 if (err) { 968 dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, " 969 "aborting.\n"); 970 goto err_free_res; 971 } 972 } 973 974 mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev); 975 if (!mdev) { 976 dev_err(&pdev->dev, "Device struct alloc failed, " 977 "aborting.\n"); 978 err = -ENOMEM; 979 goto err_free_res; 980 } 981 982 mdev->pdev = pdev; 983 984 if (ddr_hidden) 985 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN; 986 if (mthca_hca_table[id->driver_data].is_memfree) 987 mdev->mthca_flags |= MTHCA_FLAG_MEMFREE; 988 if (mthca_hca_table[id->driver_data].is_pcie) 989 mdev->mthca_flags |= MTHCA_FLAG_PCIE; 990 991 /* 992 * Now reset the HCA before we touch the PCI capabilities or 993 * attempt a firmware command, since a boot ROM may have left 994 * the HCA in an undefined state. 995 */ 996 err = mthca_reset(mdev); 997 if (err) { 998 mthca_err(mdev, "Failed to reset HCA, aborting.\n"); 999 goto err_free_dev; 1000 } 1001 1002 if (msi_x && !mthca_enable_msi_x(mdev)) 1003 mdev->mthca_flags |= MTHCA_FLAG_MSI_X; 1004 if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) && 1005 !pci_enable_msi(pdev)) 1006 mdev->mthca_flags |= MTHCA_FLAG_MSI; 1007 1008 if (mthca_cmd_init(mdev)) { 1009 mthca_err(mdev, "Failed to init command interface, aborting.\n"); 1010 goto err_free_dev; 1011 } 1012 1013 err = mthca_tune_pci(mdev); 1014 if (err) 1015 goto err_cmd; 1016 1017 err = mthca_init_hca(mdev); 1018 if (err) 1019 goto err_cmd; 1020 1021 if (mdev->fw_ver < mthca_hca_table[id->driver_data].latest_fw) { 1022 mthca_warn(mdev, "HCA FW version %x.%x.%x is old (%x.%x.%x is current).\n", 1023 (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff, 1024 (int) (mdev->fw_ver & 0xffff), 1025 (int) (mthca_hca_table[id->driver_data].latest_fw >> 32), 1026 (int) (mthca_hca_table[id->driver_data].latest_fw >> 16) & 0xffff, 1027 (int) (mthca_hca_table[id->driver_data].latest_fw & 0xffff)); 1028 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n"); 1029 } 1030 1031 err = mthca_setup_hca(mdev); 1032 if (err) 1033 goto err_close; 1034 1035 err = mthca_register_device(mdev); 1036 if (err) 1037 goto err_cleanup; 1038 1039 err = mthca_create_agents(mdev); 1040 if (err) 1041 goto err_unregister; 1042 1043 pci_set_drvdata(pdev, mdev); 1044 1045 return 0; 1046 1047 err_unregister: 1048 mthca_unregister_device(mdev); 1049 1050 err_cleanup: 1051 mthca_cleanup_mcg_table(mdev); 1052 mthca_cleanup_av_table(mdev); 1053 mthca_cleanup_qp_table(mdev); 1054 mthca_cleanup_cq_table(mdev); 1055 mthca_cmd_use_polling(mdev); 1056 mthca_cleanup_eq_table(mdev); 1057 1058 mthca_pd_free(mdev, &mdev->driver_pd); 1059 1060 mthca_cleanup_mr_table(mdev); 1061 mthca_cleanup_pd_table(mdev); 1062 mthca_cleanup_uar_table(mdev); 1063 1064 err_close: 1065 mthca_close_hca(mdev); 1066 1067 err_cmd: 1068 mthca_cmd_cleanup(mdev); 1069 1070 err_free_dev: 1071 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) 1072 pci_disable_msix(pdev); 1073 if (mdev->mthca_flags & MTHCA_FLAG_MSI) 1074 pci_disable_msi(pdev); 1075 1076 ib_dealloc_device(&mdev->ib_dev); 1077 1078 err_free_res: 1079 mthca_release_regions(pdev, ddr_hidden); 1080 1081 err_disable_pdev: 1082 pci_disable_device(pdev); 1083 pci_set_drvdata(pdev, NULL); 1084 return err; 1085 } 1086 1087 static void __devexit mthca_remove_one(struct pci_dev *pdev) 1088 { 1089 struct mthca_dev *mdev = pci_get_drvdata(pdev); 1090 u8 status; 1091 int p; 1092 1093 if (mdev) { 1094 mthca_free_agents(mdev); 1095 mthca_unregister_device(mdev); 1096 1097 for (p = 1; p <= mdev->limits.num_ports; ++p) 1098 mthca_CLOSE_IB(mdev, p, &status); 1099 1100 mthca_cleanup_mcg_table(mdev); 1101 mthca_cleanup_av_table(mdev); 1102 mthca_cleanup_qp_table(mdev); 1103 mthca_cleanup_cq_table(mdev); 1104 mthca_cmd_use_polling(mdev); 1105 mthca_cleanup_eq_table(mdev); 1106 1107 mthca_pd_free(mdev, &mdev->driver_pd); 1108 1109 mthca_cleanup_mr_table(mdev); 1110 mthca_cleanup_pd_table(mdev); 1111 1112 iounmap(mdev->kar); 1113 mthca_uar_free(mdev, &mdev->driver_uar); 1114 mthca_cleanup_uar_table(mdev); 1115 mthca_close_hca(mdev); 1116 mthca_cmd_cleanup(mdev); 1117 1118 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X) 1119 pci_disable_msix(pdev); 1120 if (mdev->mthca_flags & MTHCA_FLAG_MSI) 1121 pci_disable_msi(pdev); 1122 1123 ib_dealloc_device(&mdev->ib_dev); 1124 mthca_release_regions(pdev, mdev->mthca_flags & 1125 MTHCA_FLAG_DDR_HIDDEN); 1126 pci_disable_device(pdev); 1127 pci_set_drvdata(pdev, NULL); 1128 } 1129 } 1130 1131 static struct pci_device_id mthca_pci_table[] = { 1132 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR), 1133 .driver_data = TAVOR }, 1134 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR), 1135 .driver_data = TAVOR }, 1136 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), 1137 .driver_data = ARBEL_COMPAT }, 1138 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT), 1139 .driver_data = ARBEL_COMPAT }, 1140 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL), 1141 .driver_data = ARBEL_NATIVE }, 1142 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL), 1143 .driver_data = ARBEL_NATIVE }, 1144 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI), 1145 .driver_data = SINAI }, 1146 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI), 1147 .driver_data = SINAI }, 1148 { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), 1149 .driver_data = SINAI }, 1150 { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD), 1151 .driver_data = SINAI }, 1152 { 0, } 1153 }; 1154 1155 MODULE_DEVICE_TABLE(pci, mthca_pci_table); 1156 1157 static struct pci_driver mthca_driver = { 1158 .name = DRV_NAME, 1159 .id_table = mthca_pci_table, 1160 .probe = mthca_init_one, 1161 .remove = __devexit_p(mthca_remove_one) 1162 }; 1163 1164 static int __init mthca_init(void) 1165 { 1166 int ret; 1167 1168 ret = pci_register_driver(&mthca_driver); 1169 return ret < 0 ? ret : 0; 1170 } 1171 1172 static void __exit mthca_cleanup(void) 1173 { 1174 pci_unregister_driver(&mthca_driver); 1175 } 1176 1177 module_init(mthca_init); 1178 module_exit(mthca_cleanup); 1179